Final Report

Adaptation of WARMF to Calculate TMDL for Chartiers Creek Watershed in Pennsylvania

Prepared for:

US Environmental Protection Agency, Region 3 1650 Arch Street Philadelphia, PA 19103-2029

Pennsylvania Department of Environmental Protection Bureau of Watershed Conservation Division of Water Quality Assessment and Standards P.O. Box 8555, Harrisburg, PA 17105-8555

The Chartiers Creek Watershed TMDL Stakeholder Group Pittsburgh, Pennsylvania

Prepared by:

Carl W. Chen, Curtis Loeb and Joel Herr

Systech Engineering, Inc. 3180 Crow Canyon Place, Suite 260 San Ramon, CA 94583 www.systechengineering.com

October 8, 2001

TABLE OF CONTENTS

1. INTRODUCTION...... 1-1 BACKGROUND ...... 1-1 CHARTIERS CREEK TMDL...... 1-2 ACKNOWLEDGEMENTS ...... 1-3 2. DESCRIPTION OF WARMF...... 2-1 DECISION SUPPORT SYSTEM...... 2-1 ENGINEERING MODULE ...... 2-2 Hydrologic Network ...... 2-2 Hydrology Simulation...... 2-4 Nonpoint Source Load...... 2-4 Acid Mine Drainage ...... 2-5 Point Source Load...... 2-6 Water Quality Simulation...... 2-6 Documentation and Peer Review ...... 2-7 COMBINED/SANITARY SEWER OVERFLOWS ...... 2-7 CSO Zones...... 2-8 CSO Components ...... 2-9 Quantity of Dry Weather Flow...... 2-10 Quality of Dry Weather Flow...... 2-11 CSO Infiltration...... 2-11 Timing and Magnitude of CSO Occurrences ...... 2-13 Mass Loading of CSOs...... 2-14 TMDL MODULE ...... 2-15 3. MODEL ADAPTATION...... 3-1 CHARTIERS CREEK WATERSHED ...... 3-1 DATA SOURCES ...... 3-3 BASIN MAP...... 3-3 INPUT DATA ...... 3-4 Land Use...... 3-5 Point Sources...... 3-7 Meteorology...... 3-13 Air Quality...... 3-16 CALIBRATION DATA...... 3-18 Stream Flow ...... 3-19 Water Quality ...... 3-20 PICTURES OF THE WATERSHED...... 3-24 ACID MINE DRAINAGE ...... 3-27 Background Information ...... 3-28 AMD Data ...... 3-30 WATER QUALITY LIMITED SECTIONS...... 3-31 DESIGNATED USES ...... 3-34 WATER QUALITY CRITERIA...... 3-37

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4. MODEL CALIBRATION ...... 4-1 INTRODUCTION...... 4-1 HYDROLOGY CALIBRATION...... 4-1 Calibration Parameters...... 4-1 Chartiers Creek at Lagonda...... 4-2 Chartiers Creek at Carnegie Station...... 4-5 WATER QUALITY CALIBRATION...... 4-7 Temperature ...... 4-9 Dissolved Oxygen ...... 4-14 Alkalinity ...... 4-16 pH ...... 4-20 Nutrients ...... 4-24 Chlorides (TDS) ...... 4-32 Cations...... 4-35 5. LOADING ASSESSMENT ...... 5-1 INTRODUCTION ...... 5-1 SUBWATERSHED REGIONS ...... 5-1 AMMONIA NITROGEN ...... 5-3 TOTAL ORGANIC CARBON...... 5-5 TOTAL PHOSPHORUS ...... 5-6 FECAL COLIFORM...... 5-8 FERROUS IRON ...... 5-10 FERRIC IRON...... 5-12 SULFATE...... 5-14 TOTAL DISSOLVED SOLIDS...... 5-16 TOTAL SUSPENDED SEDIMENT ...... 5-18 6. TMDL PROCESS...... 6-1 STAKEHOLDER INVOLVEMENT ...... 6-1 PHASE 1 INVOLVEMENT ...... 6-1 PHASE 2 INVOLVEMENT ...... 6-3 TMDL Road Map...... 6-3 EXAMPLE TMDLS...... 6-9 Alkalinity ...... 6-11 Total iron...... 6-12 Total Suspended Sediment...... 6-14 Fecal Coliform ...... 6-16 Total Dissolved Solids...... 6-18 7. SUMMARY AND CONCLUSIONS...... 7-1 SUMMARY ...... 7-1 CONCLUSIONS ...... 7-2 8. REFERENCES ...... 8-1

APPENDIX A: DATA SOURCES ...... A-1

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APPENDIX B: NPDES PERMITS IN CHARTIERS CREEK WATERHSED ...... B-1

APPENDIX C: TABLE OF DEEP AND SURFACE MINES ...... C-1

APPENDIX E: CROSS REFERENCE OF WQLS AND 303(D) LIST...... D-1

LIST OF FIGURES

Figure 2.1 WARMF’s five modules...... 2-1 Figure 2.2 Delineated Basin Map of Chartiers Creek...... 2-3 Figure 2.3 Components of a catchment...... 2-4 Figure 2.4 Location of CSO zones and point sources (white dots)...... 2-9 Figure 2.5 Schematic of CSO...... 2-9 Figure 2.6 Surface runoff and interflow for catchment 1 near the mouth of Chartiers Creek... 2-12 Figure 2.7 Road Map for TMDL Calculations...... 2-15 Figure 3.1 Chartiers Creek Watershed in Pennsylvania...... 3-1 Figure 3.2 Chartiers Creek and its tributaries...... 3-2 Figure 3.3 Chartiers Creek Basin Map displayed in WARMF...... 3-4 Figure 3.4 Land uses imported into WARMF...... 3-5 Figure 3.5 Land use input dialog...... 3-6 Figure 3.6 Location of point source discharges (white circles) in the watershed...... 3-10 Figure 3.7 Washington-East Washington Sewage Treatment Plant data in tabular form...... 3-11 Figure 3.8 Discharge of Washington-East Washington STP...... 3-12 Figure 3.9 CSO data for zone 1...... 3-13 Figure 3.10 Location of meteorology stations...... 3-15 Figure 3.11 Dialog for the adjustments of meteorology data to land catchment...... 3-16 Figure 3.12 Caldwell, Ohio air quality station (OH49)...... 3-17 Figure 3.13 CASTNET air quality stations...... 3-17 Figure 3.14 Air quality input data...... 3-18 Figure 3.15 Locations of stream flow stations...... 3-20 Figure 3.16 Locations of water quality stations (white circles)...... 3-24 Figure 3.17 Locations with pictures (white circles) of the Chartiers Basin...... 3-25 Figure 3.18 Picture of Scrubgrass Creek...... 3-26 Figure 3.19 CSO discharge structure on Chartiers Creek near Greentree Road...... 3-26 Figure 3.20 North Branch of Robinson Run...... 3-27 Figure 3.21 Locations of AMD in Chartiers Creek Basin...... 3-29 Figure 3.22 WQLS in Allegheny County...... 3-32 Figure 3.23 WQLS in Washington County...... 3-33 Figure 4.1 Comparison of simulated and observed flows at Lagonda station...... 4-3 Figure 4.2 Frequency distributions of simulated and observed flows at Lagonda station...... 4-4 Figure 4.3 Cumulative hydrographs of simulated and observed flows at Lagonda...... 4-4 Figure 4.4 Time series of simulated and observed flows at Carnegie...... 4-5 Figure 4.5 Frequency distribution of simulated and observed flows at Carnegie...... 4-6

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Figure 4.6 Cumulative hydrograph of simulated and observed flows at Carnegie...... 4-7 Figure 4.7 Locations of water quality calibration plots...... 4-9 Figure 4.8 Temperature of Chartiers Creek at Lagonda...... 4-10 Figure 4.9 Temperature of Chartiers Run...... 4-10 Figure 4.10 Temperature of Chartiers Creek at Peters...... 4-11 Figure 4.11 Temperature of Little Chartiers Creek at Linden...... 4-11 Figure 4.12 Temperature of Little Chartiers Creek upstream of Bridgeville...... 4-12 Figure 4.13 Temperature of Millers Run near Cecil...... 4-12 Figure 4.14 Temperature of Robinson Run near McDonald...... 4-13 Figure 4.15 Temperature of Chartiers Creek at Carnegie...... 4-13 Figure 4.16 DO concentrations in Chartiers Creek at Peters Bridge...... 4-14 Figure 4.17 DO in Chartiers Creek upstream of Bridgeville at Washington Road...... 4-15 Figure 4.18 DO in Chartiers Creek upstream of Bridgeville at Boyce Road...... 4-15 Figure 4.19 DO in Chartiers Creek at Carnegie...... 4-16 Figure 4.20 Alkalinity of Chartiers Creek at Lagonda...... 4-17 Figure 4.21 Alkalinity of Chartiers Creek at Peters Bridge...... 4-17 Figure 4.22 Alkalinity of Little Chartiers Creek at Linden...... 4-18 Figure 4.23 Alkalinity of Millers Run downstream of Cecil...... 4-18 Figure 4.24 Alkalinity of Robinson Run downstream of McDonald...... 4-19 Figure 4.25 Alkalinity of Chartiers Creek at Carnegie...... 4-19 Figure 4.26 pH levels in Chartiers Creek at Lagonda...... 4-20 Figure 4.27 pH levels in Chartiers Run...... 4-21 Figure 4.28 pH levels in Chartiers Creek at Peters Bridge...... 4-21 Figure 4.29 pH near the mouth of Little Chartiers Creek...... 4-22 Figure 4.30 pH upstream of Bridgeville...... 4-22 Figure 4.31 pH of Millers Run downstream of Cecil...... 4-23 Figure 4.32 pH of Robinson Run downstream of McDonald...... 4-23 Figure 4.33 pH of Chartiers Creek at Carnegie...... 4-24 Figure 4.34 Total phosphorous in Chartiers Creek at Peters Bridge ...... 4-25 Figure 4.35 Phosphate in Little Chartiers Creek...... 4-26 Figure 4.36 Total phosphorous in Little Chartiers Creek...... 4-26 Figure 4.37 Total phosphorous in Chartiers Creek near Bridgeville at Boyce Road...... 4-27 Figure 4.38 Total phosphorous in Chartiers Creek near Bridgeville at Washington Road...... 4-27 Figure 4.39 Total Phosphorous in Chartiers Creek upstream of Bridgeville at Carnegie...... 4-28 Figure 4.40 Ammonia in Little Chartiers Creek...... 4-29 Figure 4.41 Nitrate in Little Chartiers Creek...... 4-29 Figure 4.42 Total nitrogen in Little Chartiers Creek...... 4-30 Figure 4.43 Nitrate in Chartiers Creek upstream of Bridgeville at Boyce Road...... 4-30 Figure 4.44 Nitrate in Chartiers Creek upstream of Bridgeville at Washington Road...... 4-31 Figure 4.45 Organic carbon in Chartiers Creek at Carnegie...... 4-32 Figure 4.46 Chloride in Little Chartiers Creek...... 4-33 Figure 4.47 Chloride in Chartiers Creek at Peters Bridge...... 4-33 Figure 4.48 Chloride in Millers Run near of Cecil...... 4-34 Figure 4.49 Chloride in Chartiers Creek at Carnegie...... 4-34 Figure 4.50 Calcium in Chartiers Creek at Lagonda...... 4-35 Figure 4.51 Magnesium in Chartiers Creek at Lagonda...... 4-36

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Figure 4.52 Sodium in Chartiers Creek at Lagonda...... 4-36 Figure 4.53 Potassium in Chartiers Creek at Lagonda...... 4-37 Figure 4.54 Calcium at Chartiers Run...... 4-37 Figure 4.55 Magnesium at Chartiers Run...... 4-38 Figure 4.56 Potassium at Chartiers Run...... 4-38 Figure 4.57 Sodium at Chartiers Run...... 4-39 Figure 4.58 Calcium at Millers Run near of Cecil...... 4-39 Figure 4.59 Magnesium at Millers Run near of Cecil...... 4-40 Figure 4.60 Potassium at Millers Run downstream of Cecil...... 4-40 Figure 4.61 Calcium at Robinson Run downstream of McDonald...... 4-41 Figure 4.62 Magnesium at Robinson Run downstream of McDonald...... 4-41 Figure 5.1 Subwatershed Regions of Chartiers Creek Basin...... 5-2 Figure 5.2 Loading Charts of Ammonia Nitrogen...... 5-4 Figure 5.3 Loading Charts of total organic carbon (BOD)...... 5-5 Figure 5.4 Loading Charts of Total Phosphorus...... 5-7 Figure 5.5 Loading Charts of fecal coliform...... 5-9 Figure 5.6 Loading Charts of ferrous iron...... 5-11 Figure 5.7 Loading Charts of ferric iron...... 5-13 Figure 5.8 Loading Charts of sulfate...... 5-15 Figure 5.9 Loading charts of total dissolved solids...... 5-17 Figure 5.10 Loading charts of total suspended sediments...... 5-19 Figure 6.1 Stakeholder information in the consensus module of WARMF...... 6-2 Figure 6.2 Road map for TMDL calculations...... 6-4 Figure 6.3 Simulation control dialog box...... 6-6 Figure 6.4 View of the Subwatersheds...... 6-7 Figure 6.5 View and Edit TMDL dialog...... 6-9 Figure 6.6 Location of Robinson, Millers, McLaughlin and Brush Run subwatersheds...... 6-10 Figure 6.7 Dialog for alkalinity TMDL...... 6-11 Figure 6.8 Loading of calcium for the Alkalinity TMDL...... 6-12 Figure 6.9 Dialog for the TMDL of total iron...... 6-13 Figure 6.10 Point and nonpoint loading for the TMDL of total iron...... 6-14 Figure 6.11 Dialog for TMDL of total suspended sediment...... 6-15 Figure 6.12 Results of TMDL calculation for TSS...... 6-16 Figure 6.13 Input dialog for TMDL of Fecal Coliform...... 6-17 Figure 6.14 Results of Fecal Coliform TMDL...... 6-18 Figure 6.15 Dialog for TMDL of Total Dissolved Solids...... 6-19 Figure 6.16 TMDL for TDS at Millers Run near Cecil...... 6-20

LIST OF TABLES

Table 1.1 Designated Uses of Chartiers Creek...... 1-2 Table 2.1 Estimates of average dry weather flow (ADWF)...... 2-10 Table 2.2 Average sewage characteristics...... 2-11

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Table 2.3 Sewer infiltration/inflow of each CSO Zone...... 2-13 Table 3.1 Land use categories in Chartiers Creek Watershed...... 3-7 Table 3.2 Point source data in WARMF...... 3-8 Table 3.3 Meteorology input data...... 3-14 Table 3.4 Air quality stations for Chartiers Creek Basin...... 3-18 Table 3.5 Stream flow stations...... 3-19 Table 3.6 Water quality stations in the Chartiers Basin...... 3-21 Table 3.7 Sources and causes of impairments on the 303(d) list...... 3-33 Table 3.8 Proposed Water Quality Criteria for TMDL Calculations...... 3-38 Table 5.1 Annual regional loadings of ammonia nitrogen...... 5-3 Table 5.2 Annual regional loading of total organic carbon...... 5-6 Table 5.3 Annual regional loading of total phosphorous...... 5-8 Table 5.4 Annual regional loading of total fecal coliform...... 5-10 Table 5.5 Annual regional loadings of ferrous iron...... 5-10 Table 5.6 Annual regional loading of ferric iron...... 5-12 Table 5.7 Annual regional loading of sulfate...... 5-14 Table 5.8 Annual regional loading of total dissolved solids...... 5-16 Table 5.9 Annual regional loading of total suspended sediment...... 5-18

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1. INTRODUCTION

BACKGROUND

Under Section 303(d) of the Federal Clean Water Act, state regulators must identify water quality limited sections (WQLSs) of rivers that cannot meet water quality standards for their designated uses. The regulators must also determine the total maximum daily load (TMDL) of pollutants, including point and nonpoint sources, which will ensure compliance with water quality standards.

According to the EPA regulations, TMDLs include nonpoint source load (LA = load allocation), point source load (WLA = waste load allocation), margin of safety (MOS), and a growth factor (GF). TMDLs must consider the water quality conditions for all seasons, and the calculations must be based on good science, i.e. not arbitrary. Stakeholder involvement is required for the public allocation of the assimilative capacity defined by the TMDLs.

The calculations of TMDL require a software tool. Under the sponsorship of EPRI, Systech has developed the Watershed Analysis Risk Management Framework (WARMF) (Chen et al. 1998). WARMF contains dynamic simulation models that can calculate surface runoff and nonpoint source loads, as well as hydrology and water quality of streams and reservoirs in a river basin. The WARMF model also includes a TMDL module that provides a road map, or a step-by-step method, to determine TMDLs.

WARMF has been applied to the Catawba River Basin of North and South Carolina (Chen et al. 1998; Chen et al. 1997) and the Cheat River Basin in West Virginia (Chen and Herr 2000). It is being applied to the Lake Dillon Watershed in Colorado. A demonstration of WARMF was made to the Pennsylvania Department of Environmental Protection (PADEP). The PADEP expressed interest in testing its applicability to rivers in Pennsylvania. The Chartiers Creek Watershed was chosen as a test case.

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CHARTIERS CREEK TMDL

The purpose of a TMDL is to protect the designated use of a WQLS. The Pennsylvania Code Title 25 provides detailed specification of the water uses to be protected. Table 1.1 shows the designated uses of Chartiers Creek.

Table 1.1 Designated Uses of Chartiers Creek.

Water Stream Zone County Uses Chartiers Creek Main stem Allegheny WWF Reservoir No. 4 Basin Washington HQ-WWF Reservoir No. 3 Basin Washington HQ-WWF Reservoir No. 2 Basin Washington HQ-WWF Catfish Creek Basin Washington WWF Georges Run Basin Washington WWF Chartiers Run Basin Washington WWF Brush Run Basin Washington WWF Little Chartiers Source to Alcoa Dam Washington HQ-WWF Little Chartiers Alcoa Dam to Mouth Washington WWF McPherson Creek Basin Washington WWF Brush Run Basin Washington WWF Coal Run Basin Allegheny WWF Millers Run Basin Allegheny WWF Thoms Run Basin Allegheny TSF McLaughlin Run Basin Allegheny WWF Painters Run Basin Allegheny WWF Scrubgrass Run Basin Allegheny WWF Georges Run Basin Allegheny WWF Robinson Run Basin Allegheny WWF Campbells Run Basin Allegheny WWF Whiskey Run Basin Allegheny WWF Note: WWF = warm water fish; HQ = high quality water; and TSF = Trout stocking

Three intended uses exist in the Chartiers Creek Watershed. The primary intended use is warm water fish (WWF), but a few small reservoirs are used for water supply. The reservoirs must be maintained as the high quality waters, without any additional waste load input. In addition,

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Thoms Run is a trout stocked fishery (TSF) from February 15 to July 31, for which temperature and dissolved oxygen level must be suitable to sustain a coldwater fishery.

Despite being relatively small, Chartiers Creek Watershed has the highest number of impaired streams of any watershed in the state. The PADEP has identified 107 WQLSs in the Watershed. The state together with stakeholder groups must determine TMDLs of point and nonpoint source pollutants that the receiving water can accept without violating the water quality criteria for each WQLS.

A two-phase approach was taken to establish TMDLs. In Phase 1, WARMF was calibrated to the Chartiers River Basin. A WARMF CD that contains the calibrated model, database, and user’s manual will be delivered to PADEP, USEPA and Chartiers Creek stakeholder group. In Phase 2, the PADEP will use WARMF to calculate TMDLs and to involve stakeholders in the TMDL process.

This report documents the adaptation and calibration of WARMF to the Chartiers Creek Watershed. It will serve as a technical document to support the future development of TMDLs with WARMF.

ACKNOWLEDGEMENTS

The project was funded by the Electric Power Research Institute (EPRI) of Palo Alto, California and its member utilities, which include Duquesne Power and Light, Allegheny Power, First Energy, Pennsylvania Power and Light, and Reliant. They participated in the project as members of the stakeholder group. Their interest was to promote the use of a science-based method to determine TMDLs. The Pennsylvania Department of Environmental Protection (PADEP) also provided funding to the project.

Model development was performed under the technical direction of Mr. Lee McDonnell of PADEP and Ms. Mary Beck and Mr. Tom Henry of the USEPA Region 3. Rick Herd of

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Allegheny Power, Bill Thomas of Reliant and Robert Goldstein of EPRI also provided guidance and support.

Ms. Rita Coleman of PADEP (Pittsburgh) coordinated the stakeholder meetings. Mr. Harold Snyder, PADEP (Pittsburgh) provided general assistance as well as important point source data. Ms. Abbey Falcone of PADEP guided the watershed tour and furnished water quality data and GIS-based descriptions of the impaired streams. Mr. D. Scott Jones of PADEP Greensburg District Mining Office compiled and furnished data of mine overburden and drill logs. Mr. Paul Eiswerth of PADEP, Pittsburgh furnished information on combined sewer overflows. Mr. Robert Sanchez of USEPA Region 3 provided sewer flow data. Jon Ludwig from Tetra Tech, Inc. in Virginia provided an updated land use coverage.

Numerous stakeholders provided assistance in data compilation. Dr. Thomas Hart of Washington and Jefferson College (WJC) sent watershed maps and offered data through the WJC-hosted Chartiers Creek website. Mr. Thomas Page of Skelly and Loy Consultants, Inc. in Morgantown, WV shared information related to combined sewers. Creek Connections (formerly French Creek Environmental Education Project, FCEEP), under Mr. Chris Resek, has also provided much assistance in compiling data.

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2. DESCRIPTION OF WARMF

DECISION SUPPORT SYSTEM

The Watershed Analysis Risk Management Framework (WARMF) is a decision support system (DSS) designed to calculate the total maximum daily load (TMDL) of a pollutant that can be discharged to a water body without violating the water quality criteria for its designated uses. Figure 2.1 shows the components of the DSS. WARMF has Data, Engineering, Knowledge, TMDL and Consensus Modules, integrated by a Windows based graphical user interface. The modules work together and support each other.

Figure 2.1 WARMF’s five modules.

The Engineering module is a working module that performs hydrologic and water quality simulations using data provided by the Data module. The TMDL module is a decision module that provides a step-by-step procedure to calculate TMDL. The TMDL module is able to

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generate multiple, alternative solutions for TMDLs. The Consensus module is a decision module that guides stakeholders to select a preferred TMDL after taking into account cost, pollution trading, social, and political factors.

ENGINEERING MODULE

Hydrologic Network

The Engineering module of WARMF contains a dynamic watershed simulation model. To facilitate the simulation, the watershed is divided into a network of land catchments, river segments, and reservoir layers. Figure 2.2 shows the Chartiers Creek basin map, which has been delineated into land catchments and river segments in WARMF.

To facilitate the routing of water from land, catchments are further divided into land surface and soil layers (Figure 2.3). The land surface is characterized by its land uses, which may include forested areas, agriculture lands, surface mines, urban or developed areas, etc. The soil layers comprise air, water, and solid fractions.

Rainfall and snowmelt water can infiltrate through the land surface as a function of the percent pervious area of land surface and the infiltrating capacity of the soil layer below. The infiltrating capacity of soil is calculated as a function of soil moisture content. A water balance is performed to track the change of soil moisture in each soil layer. Lateral flow occurs when part of the soil layer becomes saturated. When the rate of infiltrating water is higher than the lateral flow, the saturated zone may rise to the surface and initiate surface runoff.

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Figure 2.2 Delineated Basin Map of Chartiers Creek.

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Wet deposition Dry deposition Fertilizer, pesticide, animal dropping

Soil erosion & wash off

Mineral weathering Organic matter decay Nitrification Cation exchange Plant uptake

Figure 2.3 Components of a catchment.

Hydrology Simulation

Daily precipitation, either rainfall or snow fall, is deposited to the land catchments. WARMF performs daily simulation of precipitation or snow hydrology and soil hydrology to calculate surface runoff and groundwater accretion to river segments. The water is then routed from a river segment to another river segment downstream, or to a reservoir, and so on. The flow of a point source discharge is added to its receiving river or lake segment.

Nonpoint Source Load

Dry deposition falls on land catchments. Above the land surface, WARMF accumulates pollutants contained in deposited aerosol particles on the canopy. During precipitation, the accumulated canopy pollutants are washed to the land surface and dissolved into either the infiltrating groundwater or surface runoff. Land applications of fertilizers, pesticides and animal droppings are accumulated and transported into or over the catchment in a similar fashion. The surface runoff also erodes soil particles and carries adsorbed nutrients with them to the river. Thus, WARMF accounts for nonpoint source loads associated with surface runoff.

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Below the land surface, solid phase minerals are weathered to release cations and anions. Litter is decomposed into humus to release its constituent cations and anions. Ammonia is nitrified to nitrate. Cations and anions are removed by tree uptake. The percolating water dissolves the cations and anions into solution and subjects the cations to competitive exchange with the cation exchange sites of the soil particles. When the percolating water reaches saturated zone, the flow becomes lateral. The lateral flow discharges groundwater and its chemical constituents to the river segment, which accounts for nonpoint source load of groundwater accretion.

Acid Mine Drainage

Because of the model structure, it was relatively straightforward to incorporate acid mine drainage (AMD) algorithms into WARMF. The enhancement of WARMF to simulate AMD for surface and deep mines has been completed during the TMDL project for the Cheat River in West Virginia (Chen and Herr 2000).

Soil layers were used to represent the overburden of a surface or deep mine. In this soil layer the content of minerals such as pyrite and calcite can be specified. For surface mines, the overburden is disturbed. The porosity (saturated moisture) and hydraulic conductivity of soil layers is consequently higher than their un-mined state. Water can drain through the disturbed soil faster. This drainage inhales or draws oxygen into the soil and exposes pyrite in the overburden to oxygen. For deep mines, the overburden is intact. However, water can drain out of the overburden by percolating into the mine tunnel. The drained overburden exposes pyrite to oxygen for weathering.

The existing WARMF tracks the soil moisture content of the soil layers. An algorithm was added to simulate pyrite oxidation in the unsaturated zone where the molecular oxygen is greater than zero. Calcite weathering can occur in both saturated and unsaturated zones.

Oxygen content in soil pores is simulated so that the rate of pyrite oxidation can be calculated as a function of oxygen concentration. Oxygen is consumed by pyrite oxidation. It is replaced by fresh air (21% oxygen) through the earth breathing process. For surface mines, the earth

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breathing process can draw molecular oxygen to the soil layers only from land surface. For deep mines, oxygen can be derived from both the land surface and deep mine tunnels.

The weathering by-products of pyrite include irons, sulfate, acidity (negative alkalinity), aluminum, manganese, and zinc. They are stored in the solid phase of the soil until percolating groundwater dissolves them into soil solution and carries them to the surface water as AMD. The AMD of surface mines drains laterally from soil layers to a stream segment in the same manner as a non-mined catchment. The AMD of deep mines percolates down to a deep mine tunnel and flows out as open channel flow through the portal. However, no flow routing can be performed due to a lack of data for geometry and slope of individual tunnels. The AMD is discharged directly into the stream segment.

WARMF allows a catchment to contain both surface and/or deep mines. The AMD from surface mines and deep mines are simulated separately. The AMD from a surface mine, which flows laterally to a stream segment, does not percolate down to the deep mine tunnel.

Point Source Load

WARMF accepts point source load as input data. The input file, one for each discharge, contains the time series of daily flow and pollutant loads for various chemical constituents. Point source data can vary on a daily basis. The data does not need to be specified at equal time intervals.

To estimate data during periods for which none is available, the model uses a step function approach in which data values from the last available date are repeated until the next available date. If yearly values are provided in the input file, the model will discharge constant rates every day for the year. If the monthly values are provided, the model will change the daily discharge every month.

Water Quality Simulation

Heat budget and mass balance calculations are performed to calculate water temperature and concentrations of various chemical constituents at each river segment and lake layer. The mass

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balance and heat budget equations account for advection, sinks, and sources, similar to equations used in the well-known QUAL2E model. The only difference is that QUAL2E is a steady state model and WARMF is a dynamic model. The steady state model assumes flow is in a steady state and the water volume of the river segment does not change with time. The dynamic model accounts for the changes in flow and river segment volumes each day, similar to daily changes in actual system.

Documentation and Peer Review

The formulations for hydrologic, nonpoint source, and water quality simulations have been documented (Chen, Herr, and Ziemelis 1998). The application of WARMF to determine the TMDL of BOD for maintaining a DO above 5 mg/l for river segments has been published (Chen et al. 1999). The application of WARMF to calculate the phosphate TMDL for maintaining a chlorophyll-a concentration below 20 µg/l for a stratified lake is in press (Chen et al. 2000).

Under the auspices of the USEPA and Electric Power Research Institute, Professor Arturo A. Keller of the Bren School of Environmental Science and Management at University of California Santa Barbara has conducted a peer review of WARMF according to the USEPA guidelines (EPA 1994). The review panel was derived from universities, research institutes, and regulatory agencies. The report concluded that WARMF was suitable for general TMDL determinations (Keller 2000).

More recently, the acid mine drainage module of WARMF has undergone peer review (Keller 2001). The review panel found WARMF’s acid mine algorithms to be acceptable. The findings of this peer review are currently in press.

COMBINED/SANITARY SEWER OVERFLOWS

Chartiers Creek Watershed experiences water quality problems related to combined/sanitary sewer overflows (CSOs). During storms, extraneous flow infiltrates into the sewer. The flow

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exceeds the capacity of interceptors, and the excess is discharged to the stream through overflow gates. The overflow contains a mixture of raw sewage and storm water that is typically high in bacteria and nutrient concentrations.

The extraneous flow is derived from infiltration and inflow. Infiltration enters the sewer at joints or broken pipes, for example. Inflow enters into the sewer from cellars, foundation drains, manhole covers, and catch basins (Tchobanoglous & Schroeder, 1985). In this study, infiltration and inflow are lumped together as infiltration flow.

Though CSOs discharge at a specific point, they behave like a nonpoint source load. The flow and pollution loads of CSOs are weather related, dynamic, and difficult to specify as model input. CSOs cannot be simulated by the existing WARMF. In this study, a methodology was developed to calculate CSO based on the surface runoff and groundwater percolation simulated by WARMF. The calculated CSO was written to an input file, which provides the time series of point source loads to WARMF.

CSO Zones

According to the Allegheny County Sanitary Authority (ALCOSAN) there are approximately 60 known CSO locations in Allegheny County. These locations have been aggregated into nine CSO zones (Figure 2.4). The nine zones roughly correspond to the sampling locations of the Three Rivers Wet Weather Demonstration Program (3RWWDP) which monitored sewer flows in 1997 and 1998, and also to the extent of the ALCOSAN sewershed system.

The region marked "NA" in Figure 2.4 is Campbells Run. This region is serviced by a sewage treatment plant independent of the ALCOSAN system. Consequently, this region was not included in CSO calculations.

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1 NA

3 2

4 7

8 5

9 6

Figure 2.4 Location of CSO zones and point sources (white dots).

CSO Components

Figure 2.5 is a schematic of the CSO methodology. During the dry weather period, the sewer carries average dry weather flow of sewage (ADWF). During storms significant infiltration enters the sewer. The infiltrated water mixes with ADWF in the sewer.

Net Overflow (calculated ⇒ point source files) Infiltration- Inflow (WARMF) Infiltration- Inflow (WARMF)

ADWF (data/population estimates) Sewer System Interceptor

Figure 2.5 Schematic of CSO.

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When the combined flow exceeds the interceptor capacity, the excess becomes the net overflow, whose flow and pollution loads are calculated and written into the point source files for later use by WARMF.

Quantity of Dry Weather Flow

Average dry weather flow (ADWF) for each zone was estimated using 3RWWDP sewer flow data. Flow measurements in the sewer interceptor were taken at several locations throughout the ALCOSAN system. The time series of flows were averaged for 1997 and 1998. The estimates were verified by using the population data in the tributary area of each CSO zone. It was assumed that one person produced 100 gallons per day (gpd) of sewage. Multiplying population by the per capita production yields the average dry weather flow that should be comparable to the measured flow.

Table 2.1 compares the average dry weather flow estimated by two methods. The value QADWF

(data) in the table was based on measured data. The value QADWF (pop.) was based on population data. QADWF (data) was 12.4 mgd and QADWF (pop) was 13.5 mgd, a total percent difference of 8%.

Table 2.1 Estimates of average dry weather flow (ADWF).

QADWF QADWF CSO (data), (pop.), zone mgd mgd 1 1.0 1.0 2 1.1 1.4 3 0.8 0.5 4 1.5 1.74 5 2.5 3.1 6 4.0 5.2 7 1.0 0.5 8 0.3 - 9 0.3 - Total 12.4 13.5

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Quality of Dry Weather Flow

It was assumed that the pollutants contained in CSO overflows would be roughly the same as those contained in typical domestic sewage. Table 2.2 presents the average characteristics of domestic sewage (Tchobanoglous & Schroeder, 1985). These values were used to estimate the water quality concentrations of the ADWF, and ultimately were used to calculate the quality of CSOs.

Table 2.2 Average sewage characteristics.

Typical Parameter value Temperature, oC 20 Chlorides, mg/l 150 Ammonia-N, mg/l 25 Phosphate, mg/l 12 Total Org. Carbon (BOD), mg/l 150 Fecal coliform, MPN/100mL 1E+7 Flow per person, gpd 100

CSO Infiltration

WARMF simulates surface runoff and subsurface interflow for land catchments. Figure 2.6 shows the surface runoff and interflow simulated by WARMF for catchment 1 near the mouth of Chartiers Creek. The simulated runoff and interflow for all catchments within each CSO zone was summed to calculate the total potential infiltration into the interceptor. It is assumed that some fraction of the total potential infiltration enters the sewer.

The fraction of potential infiltration is not known. It can be empirically estimated by trial and error. Initially 35% of all potential infiltration was assumed to enter the interceptor. Based on this value, WARMF calculated the total volume of sewer interceptor infiltration. The volume of infiltration was divided by the drainage area to calculate the infiltration per unit area, for which there are literature values with which to compare.

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Figure 2.6 Surface runoff and interflow for catchment 1 near the mouth of Chartiers Creek.

Table 2.3 shows the calculated total infiltration and the infiltration per unit area for each CSO zone. The average for all zones is 2.1E-8 m3/s per m2, with a range from 4E-9 to 3E-7 m3/s per m2. In literature, values of infiltration range from 2E-10 to 5E-7 m3/s per m2 (Tchobanoglous and Schroeder, 1985). WARMF’s prediction is within the typical range; thus the assumption that 35% of total potential infiltration enters the interceptor is reasonable.

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Table 2.3 Sewer infiltration/inflow of each CSO Zone. Average CSO Infiltration, Infiltration per area, 3 3 2 Zone m /s m /s per m 1 0.77 3.0E-8 2 0.34 2.2E-8 3 0.17 1.5E-8 4 0.32 2.1E-8 5 0.40 2.1E-8 6 0.50 2.5E-8 7 0.16 1.1E-8 8 0.13 2.2E-8 9 0.31 2.6E-8 Ave. 0.35 2.1E-8 Literature 2.3E-10 – 5.1E-7

Timing and Magnitude of CSO Occurrences

If the capacity of the ALCOSAN interceptor and total flow through the interceptor over time were known, the timing and magnitude of CSO/SSO occurrences could be calculated. Information about individual interceptor capacities is not available. For this study, an alternate approach was used to estimate overflow volumes and when they occur.

According to the ALCOSAN System Inventory & Characterization Report, overflows occur approximately 60 times per year on average. WARMF was used to calculate the magnitude of infiltration flow (essentially 35% of overland and interflow from the catchments) from 1981 to 1999, an 18-year period. For an average of 60 overflows per year, there would be 1080 spills during 18 years. It was thus reasoned that overflow occurs on the largest 1080 storm events. In other words, the interceptor capacity would be reached by the magnitude of flow that occurs during the 1081st largest storm plus the magnitude of the constant ADWF. And, the timing and overflow magnitudes are dictated by the timing and magnitude of the 1080 largest storm events predicted by WARMF.

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Mass Loading of CSOs

Mass balance principles were used to calculate the pollution loads of CSO discharges. As stated, WARMF was used to simulate the daily values of interceptor infiltration. The infiltrated water was mixed with the ADWF. If the sum of ADWF and infiltration was less than the capacity of interceptor, the mixed water was conveyed to the sewage treatment plant: the CSO loadings were zero for all pollutants for the day. If the sum of ADWF and infiltration was greater than the capacity of interceptor, the excess flow was discharged immediately to the river segment as a CSO. The CSO loading of the day was calculated by multiplying the excess flows by the mixed concentrations of pollutants.

ALCOSAN has conducted an independent model study of CSOs. While the detail of ALCOSAN study has not been released, some overall results are available for comparison (Table 2.4). The study reported an average spill of 2,450 MG/yr, compared to the WARMF-calculated average spill of 2,496 MG/yr. The percent difference in average overflow volumes is 2.0 %. ALCOSAN also estimated the overflow frequency to range from 7 to 164 per year with an average of 65 per year. WARMF calculated the spill frequency to range from 13 to 106 per year with an average of 60 per year. The difference between average overflows per year is 8.0%. ALCOSAN study used a total tributary area of 115 km2 while the area in WARMF was 120 km2, a difference of 4.6 percent.

Table 2.4 Comparison of ALCOSAN and WARMF CSO/SSO characteristics.

ALCOSAN WARMF % Characteristic Range Average Range Average Diff. Annual overflow, MG/yr 1,900 - 3,000 2,450 - 2,496 1.9 Annual overflow frequency 7 - 164 65 13 - 106 60 8.0 Total tributary area, km2 - 115 - 121 4.6

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TMDL MODULE

The rationale behind the decision support system (DSS) is that the TMDL process involves several steps. The WARMF DSS organizes those steps into a road map. Figure 2.7 shows the road map for TMDL calculations.

Figure 2.7 Road Map for TMDL Calculations.

The first few steps allow the users to specify the conditions for TMDL calculations. These include specification of a control point (WQLS), its designated use, water quality criteria that are to be met, TMDL pollutant to control, and strategy to adjust point and nonpoint source loadings.

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If the users follow these steps, WARMF will calculate TMDL by adjusting the loadings until the water quality criteria are met. WARMF will save all possible TMDL solutions for later selection of a preferred TMDL plan. WARMF will notify stakeholders if a solution cannot be found under the specified conditions so that another TMDL scenario can be attempted. A context sensitive Help Menu is provided to answer questions that may arise in every step of the TMDL road map.

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3. MODEL ADAPTATION

CHARTIERS CREEK WATERSHED

The Chartiers Creek Watershed drains a 257 mi2 (665 km2) area southwest of Pittsburgh, PA (Figure 3.1). The creek flows approximately 35 mi (56 km) north from its headwaters near Lagonda, PA before meeting the Ohio River just downstream of the confluence of the Allegheny and Monongahela Rivers in Pittsburgh.

Upper Ohio River Basin PA

Philadelphia Pittsburgh

OH Pittsburgh

Chartiers WV Creek

Canonsburg

Little Washington Chartiers Creek

Figure 3.1 Chartiers Creek Watershed in Pennsylvania.

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Figure 3.2 presents the Chartiers Creek and its tributaries. The tributaries on the western side of the watershed include Chartiers Run, Millers Run, Robinson Run, and North Branch of Robinson Run. On the eastern side, major tributaries include Little Chartiers Creek, Brush Run, McLaughlin/Graesers Run, Painters Run, and Scrubgrass Run.

Campbells Pittsburgh North Branch Run Robinson Run

Carnegie Robinson Oakdale Run Scrubgrass Creek Bridgeville Painters Run

Millers Run

McLaughlin/ Graesers Run ALLEGHENY COUNTY Chartiers Run Brush Run Canonsburg WASHINGONT COUNTY

Little Chartiers Washington Creek

Lagonda

Figure 3.2 Chartiers Creek and its tributaries.

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Several small tributaries such as Georges Run (part of Chartiers Run), Catfish Run (near Washington), Plum Run (near Canonsburg), Half Crown Run (part of North Branch Robinson Run), Whiskey Run (north of Scrubgrass Creek), Coal Run (near Bridgeville), Thoms Run (near Bridgeville), and others are not identified in Figure 3.2.

The upper reaches of the creek flow primarily through agricultural and forested regions before entering communities near Washington. Livestock that have access to the creek in this region contribute nutrient, biological oxygen demand, and sediment loads to the stream. Downstream, between Washington and Pittsburgh, industries discharge pollutants including organic matter, silt, heat, acids, sulfites, chlorine, and metals, among others, into the creek. Below Canonsburg, the relatively unpolluted Little Chartiers Creek meets the main stem of the creek (Figure 3.1). In this region known combined/sanitary sewer discharge raw sewage into the creek during storms. Acid mine drainage impacts water quality primarily downstream of this point though deep and surface mines exist through much of the watershed.

DATA SOURCES

Site-specific data was compiled for the adaptation of WARMF to the Chartiers Creek Watershed. This task was accomplished by first downloading information available from USEPA, USGS, NCDC, and NRCS websites. These national databases were then augmented with the state databases of PADEP. Many stakeholders of Chartiers Creek also supplied local data. The data sources of the project are listed in Appendix A.

BASIN MAP

The first step of model adaptation is to create a basin map for the Chartiers Creek Watershed. The digital elevation maps (DEMs) of the Chartiers Creek basin were downloaded from the USGS website. A total of 12 USGS 7.5 minute DEMs were required to encompass the watershed. WARMF used the DEMs to delineate the watershed into land catchments and river segments. Figure 3.3 presents the delineated basin map for the Chartiers Creek Watershed.

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Figure 3.3 Chartiers Creek Basin Map displayed in WARMF.

INPUT DATA

The physical dimensions of land catchments and river segments were automatically calculated from the DEM data. Other input data for WARMF includes land use, point sources, meteorology, and air quality.

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Land Use

Land use data for the basin was obtained from Jon Ludwig of Tetra Tech, Inc in Fairfax, Virginia. The GIS ArcInfo file used by WARMF is shown in Figure 3.4. Note that the original GIS shapefile has two categories that represented the pasture land use category.

Figure 3.4 Land uses imported into WARMF.

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The land use shape file was imported into WARMF. WARMF matched the polygons of land uses to the polygons of catchments to calculate the percent of land use in each catchment. The land use information can be viewed under the input mode in Engineering module. Figure 3.5 shows the input dialog of land use percentages for a catchment in the watershed.

Figure 3.5 Land use input dialog.

Table 3.1 shows the land use categories used in the model. They include water, deciduous, mixed and evergreen forests, pasture, row crops, residential (LID), commercial/industrial (HID), barren, and strip mine. Instead of including the insignificant wetland categories separately, they were grouped with the mixed forest category.

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Table 3.1 Land use categories in Chartiers Creek Watershed.

No. WARMF land uses Description 1 Water Streams and canals, lakes, reservoirs. 2 Deciduous Deciduous forests. 3 Evergreen Evergreen, coniferous forests. 4 Mixed Forest Mixed forest land, forested and other wetlands. 5 Pasture Areas of grasses, legumes planted for livestock grazing or production of seed or hay crops. 6 Row crops Planted productions crops such as corn, vegetables, etc. 7 Residential (LID) Residential homes, mixture of constructed materials and vegetation, lower intensity development. 8 Commercial/Industrial Combination of commercial and industrial infrastructure, and high intensity development such as row houses, apartments. 9 Barren Bare exposed rock, transitional areas, mixed barren land. 10 Strip Mine Strip mines, quarries, and gravel pits.

Point Sources

Point source discharges include effluent from sewage treatment plants, mobile home parks, various industries, schools, and CSOs. Point source data typically monitored and pertinent to TMDL modeling includes flow, temperature, organic carbon (or biological oxygen demand, BOD), ammonia-nitrogen, phosphorous, fecal coliform, dissolved oxygen, and pH.

Point source data were obtained primarily from the NPDES website (USEPA, 2000). PADEP also furnished discharge monitoring reports (DMRs) in hardcopy form that contain flow and pollutant concentrations on a monthly basis for individual NPDES permit holders. The hardcopy data generally spanned the period of 1997 to the present.

Table 3.2 provides a list of point source loads that were entered into WARMF. The table shows the NPDES number, latitude and longitude, facility name, period of record, permitted flow limit in mgd, and data source. Locations with source ‘PCS, DEP’ were obtained from the NPDES Permit Compliance System (PCS) website and PADEP. Those with source ‘PADEP’ were provided by the state in hardcopy form.

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Table 3.2 Point source data in WARMF.

Period of Permit flow No. NPDES/CSO # Latitude Longitude Facility name record (mgd) Source 1 PA0000647 40.4444 -80.1622 Crucible Research Center 7/96 - 6/99 monitor PADEP 2 PA0001902 40.1758 -80.2751 Jessop Steel Washington Mill 1/89 - 11/99 monitor PCS/PADEP 3 PA0002721 40.185 -80.2851 Lukens Steel-Washington Plant 7/96 - 6/99 monitor PADEP 4 PA0002739 40.256 -80.228 Allegheny Ludlum-Houston Plant 7/96 - 6/99 0.0604 PADEP 5 PA0003603 40.3653 -80.0986 Univ. Stainless & Alloy Prod/Bridgeville 1/89 - 11/99 monitor PCS/PADEP 6 PA0024783 40.1814 -80.1925 Windsor Highlands 4/96 - 6/99 0.127 PADEP 7 PA0025941 40.2683 -80.1653 Canonsburg-Houston STP 1/89 - 11/99 5.6 PCS/PADEP 8 PA0026212 40.2051 -80.2642 Washington-East Washington STP 1/89 - 11/99 monitor PCS/PADEP 9 PA0028703 40.2781 -80.1361 Donaldsons Crossroads WPCP 8/96 - 4/99 monitor PADEP 10 PA0028711 40.2922 -80.1083 Brush Run STP 4/96 - 11/99 monitor PCS/PADEP 11 PA0033294 40.1241 -80.2872 South Franklin Farms 8/95 - 5/99 0.06 PADEP 12 PA0036293 40.4251 -80.1117 Campbells Run STP 1/89 - 11/99 1.0 PCS/PADEP 13 PA0036331 40.3275 -80.2044 Fleeher STP 7/96 - 6/99 0.05 PADEP 14 PA0040312 40.1714 -80.2769 Molycorp Inc., Washington Plant 6/92 - 6/99 monitor PCS/PADEP 15 PA0043435 40.3233 -80.1731 Monaco Manor STP 7/96 - 6/99 0.03 PADEP 16 PA0047228 40.4191 -80.1081 Pennsbury Village Borough STP 7/96 - 6/99 0.17 PADEP 17 PA0090018 40.2228 -80.1975 Willolake STP 7/96 - 6/99 0.14 PADEP 18 PA0091138 40.3039 -80.1328 Teodori Sewage Treatment Plant 7/96 - 6/99 0.07 PADEP 19 PA0094960 40.1808 -80.1358 Barnes Apartments STP 7/96 - 6/99 0.0023 PADEP 20 PA0096881 40.4222 -80.2206 Oakridge Heights MHP STP #1 7/96 - 6/99 0.0058 PADEP 21 PA0096890 40.4238 -80.2231 Oakridge Heights MHP #2 7/96 - 6/99 0.0025 PADEP 22 PA0203661 40.3697 -80.2562 Goldschmidt Ind. Chemical Corp. 7/96 - 7/99 0.0003 PADEP 23 PA0204897 40.4002 -80.0992 Collier Garage 7/96 - 7/99 monitor PADEP 24 PA0205419 40.3664 -80.0984 Dynamet-Bridgeville Facility 3/97 - 7/99 monitor PADEP 25 PA0216178 40.3138 -80.1401 Cherrybrook STP 7/96 - 6/99 0.09005 PADEP 26 CSO 1 40.4195 -80.0862 CSO point source in Zone 1 9/81 - 9/99 NA Systech 27 CSO 2 40.3991 -80.0982 CSO point source in Zone 2 9/81 - 9/99 NA Systech 28 CSO 3 40.3975 -80.1522 CSO point source in Zone 3 9/81 - 9/99 NA Systech 29 CSO 4 40.3855 -80.0915 CSO point source in Zone 4 9/81 - 9/99 NA Systech 30 CSO 5 40.3775 -80.1002 CSO point source in Zone 5 9/81 - 9/99 NA Systech 31 CSO 6 40.3501 -80.0882 CSO point source in Zone 6 9/81 - 9/99 NA Systech 32 CSO 7 40.3775 -80.1482 CSO point source in Zone 7 9/81 - 9/99 NA Systech 33 CSO 8 40.3545 -80.1481 CSO point source in Zone 8 9/81 - 9/99 NA Systech 34 CSO 9 40.3355 -80.1175 CSO point source in Zone 9 9/81 - 9/99 NA Systech

The daily CSO point source discharge data were calculated by Systech using the method described in Chapter 2. The calculations were performed only for the 9 CSO zones representing

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the ALCOSAN service area in Allegheny County. Information from PADEP monitoring assessments suggests that CSOs also occur near Washington. Overflows in this region were not included at this time due to a lack of data and information describing them.

Appendix B presents a complete listing of NPDES permits for discharger in the watershed. This list includes point sources that were entered into the model as well as those that were not. Data for several dischargers were not added to WARMF because their discharge was insignificant relative to the receiving waters. Though the data from these small dischargers were not entered, a point source file for each existing NPDES permit was assigned to the proper catchment so that permit limit data could be quickly added to the files later for TMDL simulations. Data in these particular files currently show “0” values for flow and other parameters.

WARMF displays the locations of point discharges when Point Sources is selected from the View pull-down menu. Figure 3.6 shows the locations of discharger in the Basin. The user can also view data at any location by pointing and clicking on the white dots shown in the figure. For cases in which more than one discharge occurs at the same NPDES facility, only one dot may be shown.

The data module can display input data such as point sources in tabular or graphical form. Figure 3.7 is data for Washington-East Washington Sewage Treatment Plant (STP), one of the larger dischargers in the basin, in tabular form.

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Figure 3.6 Location of point source discharges (white circles) in the watershed.

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Figure 3.7 Washington-East Washington Sewage Treatment Plant data in tabular form.

Figure 3.8 shows the same point source data in graphical form. The average flow at the Washington-East Washington STP was 0.256 m3/s (5.8 mgd) and the standard deviation of flow was 0.058 m3/s (1.3 mgd). The figure shows a seasonal pattern of discharge. High flows occurred during the spring melt and low flows occurred during the winter, when the precipitation was snowfall. This indicates that ground water infiltrates into the sewer system.

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Figure 3.8 Discharge of Washington-East Washington STP.

The general flow pattern appears to follow a stationary curve without increasing or decreasing trends. This suggests that there was no new sewer connection or other change to the system. For this discharger, it is appropriate to use average values when data is not available. The period of

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record of some point sources, including the Washington-East Washington STP, was extended using average flows and loads so that the earlier years could be simulated during calibration runs.

Because CSO data is added as a point source, it can also be viewed from the data module. Figure 3.9 shows CSO data for Zone 1 in tabular form. CSO point source flows were specified as zero, because overland flow and infiltration that cause CSOs were already accounted for during the hydrologic simulation in WARMF.

Figure 3.9 CSO data for zone 1.

Meteorology

Meteorology data was obtained from the National Climatic Data Center’s (NCDCs) CD-ROM and online database. The daily meteorology data include:

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• Minimum temperature, oC • Dew point temperature (or • Maximum temperature, oC relative humidity), oC • Precipitation, cm • Air pressure, mbar • Cloud cover (fractional cloudiness) • Wind speed, m/s.

Table 3.3 lists the two nearest available meteorology stations. One or two meteorology stations are typically adequate for watersheds the size of the Chartiers Creek Basin.

Table 3.3 Meteorology input data.

Name/Location Latitude Longitude Period Frequency Source Pittsburgh International Airport 40.4900 -80.2167 1/81 – 10/99 daily NCDC Washington County Met Station 40.1833 -80.1833 1/82 – 10/99 daily NCDC

Figure 3.10 shows the locations of meteorology stations. The Pittsburgh Airport is only a few miles north of the Watershed, and the Washington County station is located east of Washington in the southern portion of the basin.

Each land catchment is assigned a meteorology station. Adjustment factors are used to translate data at meteorology station to the data at the catchment. Figure 3.11 shows the dialog where the adjustment factors can be reviewed or changed.

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Pittsburgh Airport

Washing Co. Stn.

Figure 3.10 Location of meteorology stations.

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Figure 3.11 Dialog for the adjustments of meteorology data to land catchment.

Through calibration of hydrology, it was determined that applying Pittsburgh Airport data to the entire watershed provided better results than using data from both stations. Hence the Washington County station was not assigned to any catchments.

Air Quality

WARMF requires rain chemistry data to calculate wet deposition and air quality data to calculate dry deposition. There are two national networks that monitor and report rain chemistry and air quality data. One is the National Atmospheric Deposition Program (NADP), and the other is the

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Clean Air Status and Trends Network (CASTNET). NAPD provides monthly data and CASTNET provides weekly data. Figures 3.12 and 3.13 show the nearest NADP and CASTNET stations, respectively. The suitable stations are the NADP Caldwell station in Ohio (OH49), and the CASTNET stations of Laurel Hill State Park (LRL) in Pennsylvania and Quaker City in Ohio (QAK).

Figure 3.12 Caldwell, Ohio air quality station (OH49).

Chartiers Creek Watershed

Figure 3.13 CASTNET air quality stations.

Table 3.4 summarizes the available precipitation chemistry and air quality data for the basin.

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Table 3.4 Air quality stations for Chartiers Creek Basin.

Name/Location Period Frequency Source LRL117, Laurel Hill State Park, PA 12/87 - 12/98 weekly CASTNET QAK 572, Quaker City, OH 9/93 – 11/95 Weekly CASTNET OH40: Caldwell, OH 1/80 - 12/98 monthly NADP

Due to the paucity of air quality monitoring stations and also to large-scale movements of air mass, it is common for data from a single station, or for merged data from multiple stations, to be applied to an entire watershed. Data from the stations in Table 3.4 were merged to create the air quality database. A subset of the data is shown in Figure 3.14.

Figure 3.14 Air quality input data.

CALIBRATION DATA

Calibration data is the observed sampling data used to compare against simulation results. For calibration of hydrology, depths and flows are used. For calibration of stream water quality,

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parameters such as cations and anions, nutrients, pH and alkalinity, bacteria, DO and suspended sediment are commonly used.

Stream Flow

Table 3.5 lists available stations of observed stream flow in the basin. The USGS station on Chartiers Creek at Carnegie has the longest continuous period of record which extends from 1981 to 1997. The USGS also maintained a station at Lagonda, near the headwaters of Chartiers Creek. Daily data at Lagonda was collected continuously from 1982 to 1985. The other stations have only spot measurements of velocity and flow. The time series flow data were compiled from their respective data sources and imported to WARMF.

Table 3.5 Stream flow stations.

Name/Location Latitude Longitude Period Frequency Source Brush Run Sites (WJC sites 1& 5) 40.2811 -80.1009 1/99 Spot WJC Old Scales Rd u/s Lagonda (WJC site 1) 40.1001 -80.2960 11/82 - 9/85 Spot WJC Chartiers Cr d/s of Lagonda (WJC site 3) 40.1466 -80.2722 1/83 – 1/99 Spot WJC Chartiers Cr at Lagonda 40.1219 -80.2925 11/82 - 9/85 Daily STORET Chartiers Cr. At Carnegie 40.3981 -80.0991 10/81 - 9/97 Daily STORET Scrubgrass Run u/s & d/s of treatment ponds 40.3821 -80.0831 1/99 Spot WJC Chartiers Cr at Franklin Mall u/s Washington (site 4) 40.1645 -80.2789 1/76 – 1/95 Spot WJC Chartiers Cr d/s Washington at Jessop Steel (WJC site 5) 40.1775 -80.2775 1/83 – 1/99 Spot WJC Chartiers Cr d/s Cross Creek (WJC sites 6 & 7) 40.1955 -80.2635 1/76 – 1/91 Spot WJC

Figure 3.15 is a map showing locations of flow stations. Note that hydrology stations except those near Lagonda and Carnegie have only a few spot measurements of flow or depth.

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Figure 3.15 Locations of stream flow stations.

Water Quality

WARMF’s database of stream water quality data includes stations located throughout the entire watershed and data that spans many years. Table 3.6 lists stations of observed water quality. Figure 3.16 displays the locations of these stations in the watershed.

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Many sources have assisted in compilation of the data record. Stakeholders such as Creek Connections (formerly French Creek Environmental Education Project) and Washington and Jefferson College have developed websites through which considerable water quality data was obtained. The USEPA STORET online database was another important source of data. Several locations with monthly and spot data for significant periods of record were obtained from STORET. PADEP also provided data for numerous sites throughout the watershed; however, these sites contain only a few data points.

Table 3.6 Water quality stations in the Chartiers Basin.

Name/Location Latitude Longitude Period Frequency Source 106 Bethel Park, Greenwald Cr behind H.S. on Creek McLaughlin Rn 40.3333 -80.0401 9/98 - 2/99 ~ monthly Conn 113 Upper St Clair Site D McLaughlin Rn on Creek Bower Hill Rd nr Chart Cr 40.3542 -80.1101 9/98 - 2/99 ~ monthly Conn 101 Upper St Clair Site A Chartiers Cr at Creek Boyce Rd 40.3215 -80.1145 9/98 - 12/99 ~ monthly Conn Brush Run Sites 1 & 2 d/s STP on Brush Rn 40.2945 -80.1101 1/95, 1/99 spot WJC Brush Run Sites 3 & 4u/s STP on Brush Rn 40.2862 -80.1098 1/95 spot WJC Brush Run Site 5 u/s last trib on Brush Rn 40.2811 -80.1009 1/95, 1/99 spot WJC Canonsburg Lk u/s & d/s ends only at surface 40.2583 -80.1367 4/86 - 10/86 spot PA DEP Chartiers Cr at Carnegie 40.3981 -80.0991 1/80 - 6/95 monthly STORET Millers Rn at Cecil 40.3272 -80.1892 5/83 - 8/85 spot STORET Robinsons Rn at Ewingsville 40.3939 -80.1111 3/80 - 8/81 spot STORET 104 Chartiers Valley, Chartiers Cr at Creek Greentree Rd (100 yds u/s Scrub.) 40.3875 -80.0901 9/98 - 1/00 ~ monthly Conn Chartiers Cr at Houston 40.2406 -80.2086 3/80 - 8/85 spot STORET Chartiers Rn at Houston 40.2483 -80.2108 3/80 - 8/85 spot STORET WJC/ Chartiers Cr at Lagonda (WJC site 2) 40.1219 -80.2925 2/76 - 1/99 spot STORET Chartiers Cr d/s of Lagonda & Res 3 nr WJC/ Washington (WJC site 3)1 40.1466 -80.2722 1/76 - 1/99 spot STORET Old Scales Rd at Chartiers Cr u/s Lagonda (WJC site 1) 40.1001 -80.2961 5/77, 1/99 spot WJC Little Chartier Cr at Linden 40.2372 -80.1389 3/80 - 8/85 spot STORET Robinsons Rn at McDonald 40.3653 -80.2439 5/83 - 8/85 spot STORET Reservoir #2 on Little Chart Cr nr McMurray 40.2575 -80.1014 5/83 - 8/85 spot STORET Chartiers Cr at Peters Bridge 40.2758 -80.1436 1/80 - 12/87 monthly STORET Scrubgrass Rn u/s & d/s of treatment ponds 40.3821 -80.0831 1/99 spot WJC Chartier Cr at Franklin Mall u/s Washington (WJC site 4) 40.1645 -80.2789 1/76 - 1/95 spot WJC Chartiers Cr d/s Washington at Jessop Steel (WJC site 5) 40.1775 -80.2775 1/77 - 1/99 spot WJC Chartiers Cr d/s Cross Creek at Henderson Ave (WJC sites 6 & 7) 40.1955 -80.2635 1/76 - 1/99 spot WJC 103 Upper St Clair Site C, McLaughlin Rn 1/4 Creek mi west Hwy 19, St Clair Rec Ctr 40.3334 -40.0811 9/98 - 12/99 ~ monthly Conn 102 Upper St Clair Site B, Chartiers Cr at Creek Washington Rd in Bridgeville 40.3535 -80.1175 9/98 - 12/99 ~ monthly Conn Little Chartiers Cr at Rte 40 40.1251 -80.1441 1/99 spot WJC

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970723-0840 Millers Rn at Cecil Muni Park 40.3191 -80.216 sum/fall 97 Spot PADEP 970723-1000 Millers Rn at 50/980 intersect 40.3205 -80.2375 sum/fall 97 Spot PADEP 970723-1200 Millers Rn 40.3151 -80.243 sum/fall 97 Spot PADEP 970723-1315 Millers Rn at Galati Br 40.3249 -80.2445 sum/fall 97 Spot PADEP 970808-1030 nr middle of Brush Rn 40.2863 -80.1997 sum/fall 97 Spot PADEP 970808-1145 Brush Rn headwaters 40.3036 -80.2358 sum/fall 97 Spot PADEP 970808-1220 Brush Rn nr headwaters 40.2912 -80.2155 sum/fall 97 Spot PADEP 970818-1300 Trib to Millers Rn 40.3281 -80.2079 sum/fall 97 Spot PADEP 970818-1400 Trib to Millers Rn 40.3355 -80.1925 sum/fall 97 Spot PADEP 970819-0830 Trib to Millers Rn 40.3175 -80.2031 sum/fall 97 Spot PADEP 970819-0930 Dolphin Run 40.3502 -80.1646 sum/fall 97 Spot PADEP 970819-1100 Sygan Hollow, Trib Millers Rn 40.3572 -80.1334 sum/fall 97 Spot PADEP 970822-0830 Millers Rn nr headwaters 40.3304 -80.2563 sum/fall 97 Spot PADEP 970822-0920 Millers Rn at headwaters 40.329 -80.2778 sum/fall 97 Spot PADEP 970822-1010 Millers Rn at Coleman Br 40.3296 -80.2348 sum/fall 97 Spot PADEP 970822-1100 Fishing Run 40.3355 -80.1925 sum/fall 97 Spot PADEP 970828-1330 Thoms Run Bridge 40.3721 -80.1207 sum/fall 97 Spot PADEP 970828-1425 lwr Thoms rn 40.3781 -80.1488 sum/fall 97 Spot PADEP 970829-1130 uppr Thoms rn 40.3817 -80.1575 sum/fall 97 Spot PADEP 970902-1125 Mouth Coal Run 40.3479 -80.1175 sum/fall 97 Spot PADEP 970902-1300 Coal Run 40.3307 -80.1453 sum/fall 97 Spot PADEP 970903-0900 Coal Run 40.3367 -80.1459 sum/fall 97 Spot PADEP 970903-1200 Brush Rn mainstem (Cansbg) 40.2733 -80.1971 sum/fall 97 Spot PADEP 970926-0954 Trib to Chartiers Cr nr Wash 40.1913 -80.2882 sum/fall 97 Spot PADEP 970926-1150 Mouth Georges Rn nr Wash 40.1997 -80.2754 sum/fall 97 Spot PADEP 971001-0900 Trib to Chartiers Cr 40.1805 -80.2998 sum/fall 97 Spot PADEP 971001-1040 Trib to Chartiers Cr 40.1656 -80.2887 sum/fall 97 Spot PADEP 971001-1200 Trib to McLaughlin Rn 40.3453 -80.0817 sum/fall 97 Spot PADEP 971001-1300 McLaughlin RN 40.3422 -80.0829 sum/fall 97 Spot PADEP 971001-1450 Lit Chartiers Cr at T679 40.2421 -80.1389 sum/fall 97 Spot PADEP 971002-1045 McLaughlin Rn, Wiltshire Pk 40.3215 -80.0701 sum/fall 97 Spot PADEP 971002-1140 u/s I-70 on Lit Chart Cr 40.1448 -80.1339 sum/fall 97 Spot PADEP 971003-0940 Trib to Painters Run 40.3658 -80.0626 sum/fall 97 Spot PADEP 971003-1025 Little Chart Cr nr N Strabane 40.1957 -80.1369 sum/fall 97 Spot PADEP 971003-1100 Painters Run 40.3588 -80.0593 sum/fall 97 Spot PADEP 971003-1230 Painters Run, Clair Park 40.3514 -80.0578 sum/fall 97 Spot PADEP 971006-1440 Trib to Brush Run 40.2911 -80.1044 sum/fall 97 Spot PADEP 971007-0910 d/s I-70 on Lit Chart Cr 40.1705 -80.1363 sum/fall 97 Spot PADEP 971007-1000 Trib to Brush Rn 40.3048 -80.0976 sum/fall 97 Spot PADEP 971007-1120 Trib to Brush Rn 40.3064 -80.0896 sum/fall 97 Spot PADEP 971007-1300 Brush Rn, Valley Brook Rd 40.2805 -80.0862 sum/fall 97 Spot PADEP 971007-1430 Trib to Brush Rn, Elm Grove Dr 40.2921 -80.0952 sum/fall 97 Spot PADEP 971008-0900 Trib Lit Chart Cr nr N Strabane 40.2143 -80.1641 sum/fall 97 Spot PADEP 971008-1030 Trib Lit Chart Cr nr N Strabane 40.2174 -80.1577 sum/fall 97 Spot PADEP 971008-1330 Trib Lit Chart Cr nr N Strabane 40.2117 -80.1645 sum/fall 97 Spot PADEP 971009-0900 Lit Chart Cr at I-70 40.1572 -80.1377 sum/fall 97 Spot PADEP 971009-0930 Brush Rn, E McMurray Rd 40.2711 -80.0981 sum/fall 97 Spot PADEP 971009-1030 Brush Rn, McMurray Rd 40.2786 -80.0775 sum/fall 97 Spot PADEP 971009-1050 lwr S Strabane, Lit Chart Cr 40.172 -80.1745 sum/fall 97 Spot PADEP 971009-1245 uppr S Strabane, Lit Chart Cr 40.1643 -80.1966 sum/fall 97 Spot PADEP 971010-1100 nr S Strabane, Lit Chart Cr 40.1816 -80.1741 sum/fall 97 Spot PADEP 971010-1145 Trib to Brush Rn 40.2751 -80.0722 sum/fall 97 Spot PADEP 971010-1300 Trib to Brush Rn 40.2751 -80.0722 sum/fall 97 Spot PADEP 971010-1400 Trib to Lit Chartiers Cr 40.2415 -80.1435 sum/fall 97 Spot PADEP 971010-1430 Brush Rn, Valley Brk Rd 40.2751 -80.0722 sum/fall 97 Spot PADEP 971022-0930 Mouth of McPherson Rn 40.2913 -80.1397 sum/fall 97 Spot PADEP 971022-1210 headwtrs Lit Chart Cr 40.1314 -80.1587 sum/fall 97 Spot PADEP 971022-1345 Morganza Run 40.2861 -80.1709 sum/fall 97 Spot PADEP 971022-1500 Trib to Chart Cr Morganza Rd 40.2875 -80.1555 sum/fall 97 Spot PADEP

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971023-1020 Trib Chartiers Cr d/s Chart Rn 40.2479 -80.2129 sum/fall 97 Spot PADEP 971023-1300 Mouth of Plum Run 40.2539 -80.2148 sum/fall 97 Spot PADEP 971023-1400 Plum Run 40.2811 -80.2368 sum/fall 97 Spot PADEP 971024-0940 Chartiers Run 40.2581 -80.2574 sum/fall 97 Spot PADEP 971024-1030 Mouth Westland Run 40.2629 -80.2671 sum/fall 97 Spot PADEP 971028-0840 Trib to Westland Run 40.2755 -80.2709 sum/fall 97 Spot PADEP 971028-1000 headwtrs Westlnd (Chart) Rn 40.295 -80.2818 sum/fall 97 Spot PADEP 971028-1100 nr headwtrs Westlnd (Chart) Rn 40.2808 -80.2789 sum/fall 97 Spot PADEP 971028-1400 headwaters south Chart Rn 40.2737 -80.3092 sum/fall 97 Spot PADEP 971029-0845 Mouth of Allison Hollow 40.2231 -80.2216 sum/fall 97 Spot PADEP 971029-1000 Allison Hollow 40.2364 -80.2427 sum/fall 97 Spot PADEP 971029-1100 Allison Hollow, u/s station 40.2354 -80.2539 sum/fall 97 Spot PADEP 971029-1200 Mouth of Allison Hollow 40.2203 -80.2109 sum/fall 97 Spot PADEP 971123-1115 Uppr Reach, N Br Rob Rn 40.3935 -80.2625 sum/fall 97 Spot PADEP 971124-0915 Trib to Chartiers Cr d/s Wash 40.1879 -80.2433 sum/fall 97 Spot PADEP 971124-0930, Rob Rn nr Noblestown to 980 40.3833 -80.2671 sum/fall 97 Spot PADEP 971124-1030 Trib to Chartiers Cr d/s Wash 40.2121 -80.2258 sum/fall 97 Spot PADEP 971124-1100 nr Midway, Rob Rn 40.3665 -80.2937 sum/fall 97 Spot PADEP 971124-1130 d/s Midway, Rob Rn 40.3588 -80.2772 sum/fall 97 Spot PADEP 971124-1200 Georges Rn N of Wash 40.2141 -80.2868 sum/fall 97 Spot PADEP 971124-1330 u/s Oakdale, N Br Rob Rn 40.4081 -80.1932 sum/fall 97 Spot PADEP 971124-1340 Catfish Creek 40.1609 -80.2282 sum/fall 97 Spot PADEP 971124-1400 nr N Fayette, N Br Rob Rn 40.4178 -80.2019 sum/fall 97 Spot PADEP 971124-1430 d/s Half Crwn Rn, N Br Rob Rn 40.4142 -80.2259 sum/fall 97 Spot PADEP 971124-1430-ALF Trib Chartiers Cr d/s Wash 40.2044 -80.2251 sum/fall 97 Spot PADEP 971124-1500 Half Crown Rn 40.4081 -80.2389 sum/fall 97 Spot PADEP 971125-0915, Whisky Run 40.4095 -80.0657 sum/fall 97 Spot PADEP 971126-0845 mouth Campbells Rn 40.4092 -80.0951 sum/fall 97 Spot PADEP 971126-0940 on Campbells Rn 40.4363 -80.1183 sum/fall 97 Spot PADEP 971126-1030 Half Crown Rn 40.4044 -80.2351 sum/fall 97 Spot PADEP 971126-1100 d/s McDonald, Rob Rn 40.3785 -80.2175 sum/fall 97 Spot PADEP 971126-1130, Mth Pinkerton Rn (Rob Rn) 40.4107 -80.1625 sum/fall 97 Spot PADEP 971203-1200, Rob Rn nr Fink Run 40.3881 -80.2015 sum/fall 97 Spot PADEP 971203-1300, Scotts Run Rd (Rob Rn) 40.3996 -80.1273 sum/fall 97 Spot PADEP 971204-1300 Mayview Road 40.3104 -80.1261 sum/fall 97 Spot PADEP 971205-1230 Lit Chartiers Cr 40.2269 -80.1461 sum/fall 97 Spot PADEP 971205-1345 Trib to Lit Chartiers Cr 40.2274 -80.1286 sum/fall 97 Spot PADEP

The bulk of water quality data exists at stations on the main stem of the Chartiers Creek. Many stations along Little Chartiers Creek or other tributaries like North Branch Robinson Run have measured data, but these stations include only a few measurements.

Available water quality data from various sources were compiled and imported into WARMF. The data will be used to determine the veracity of water quality simulation results.

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Figure 3.16 Locations of water quality stations (white circles).

PICTURES OF THE WATERSHED

Pictures that show the landscape or that highlight aspects of the watershed can be imported to WARMF. WARMF displays multiple pictures in a slide show format. Some of the imported

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pictures were taken during the watershed tour in December 1999. Others were provided by stakeholders. Figure 3.17 shows the locations where pictures are available for viewing.

Figure 3.17 Locations with pictures (white circles) of the Chartiers Basin.

Figure 3.18 shows acid mine drainage from Scrubgrass Run near Carnegie, evidence that the creek receives acid mine drainage. Figure 3.19 is the CSO structure on Chartiers Creek near

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Greentree Road. Figure 3.20 depicts portions of the North Branch of Robinson Run. Other pictures can be viewed by pointing and clicking on the white dots in Figure 3.17.

Figure 3.18 Picture of Scrubgrass Creek.

Figure 3.19 CSO discharge structure on Chartiers Creek near Greentree Road.

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Figure 3.20 North Branch of Robinson Run.

As indicated, many of these pictures including Figures 3.19 and 3.20 were taken during the watershed tour on a day of heavy rain. The flows were noted to be very swift and very turbid with high suspended sediment loads. Erosion was severe on some barren lots, in swift gullies, and in creeks meandering through pastures.

ACID MINE DRAINAGE

It has long been recognized that the Chartiers Creek receives acid mine drainage from its tributary land. Acid mine drainage (AMD) typically occurs when mining disturbs soils

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containing sulfide minerals. Sulfide minerals may include marcasite, pyrite and other iron disulfide minerals. When exposed to the air and water, these minerals are oxidized to produce acidity, sulfate, and iron. AMD is often low in pH and high in dissolved metals. In some cases the disturbed soils may also contain calcite which neutralizes AMD to produce neutral mine drainage (NMD). NMD has a neutral pH but can be high in SO4, Fe and Mn concentrations (Brady, et al. 1998).

To simulate AMD, it is necessary to obtain geological and mining data for input to WARMF. The data, however, is often incomplete, requiring some estimates. For that reason, it is necessary to obtain some general background information to guide the estimates.

Background Information

A mining pollution survey of Chartier Creek was conducted in the late 1960's and early 1970's (Ackenheil, 1970). This so-called “Scarlift Report” report documents an 18-month survey of AMD impaired streams in the Chartiers Creek.

Geology of the basin consists of sedimentary rocks of shale, sandstone and siltstone, coal, clay and limestone (Ackenheil, 1970; Brady et al, 1998). In many stream reaches in the northern part of the watershed, streams have eroded below the coal seam, exposing the coal bearing strata in the valleys paralleling the stream. This coal seam has been mined extensively from the riverbed to the hillsides. The Pittsburgh coal seam of the Monongahela Formation generally slopes downward in the southeast direction. A minor local depression exists near Bridgeville causing mine drainage to accumulate in this region.

AMD has historically been observed in Robinson Run, North Branch Robinson Run, Millers Run, and/or Campbells Run, mainly in the northwest corner of the watershed. This is consistent with the AMD distribution map shown in Figure 3.21. Relatively little AMD was reported in Little Chartiers Creek or in Chartiers Creek upstream of Millers Run.

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Figure 3.21 Locations of AMD in Chartiers Creek Basin. (source: Chartiers Nature Conservancy/Skelly & Loy, Inc).

The Scarlift Report indicates that surface water originating outside the topographic watershed boundaries could contribute acid mine drainage to the Chartiers Creek. The inter-basin drainage was believed to occur in North Fayette, near the North Branch of Robinson Run. The Pittsburgh coal seam extends outside of the watershed boundary but slants toward the Chartiers Creek.

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Precipitation falling outside of the watershed boundary may percolate along the coal seam to enter into the Chartiers Creek tributaries (Ackenheil, 1970). Unfortunately, the observed water quality data was not sufficient to detect or to model such inter-basin transfer of flow in the current state of the WARMF application.

Since the 1970 study, the watershed has undergone significant changes in land use including mining activity. These changes in turn affect hydrology and water quality of Chartiers Creek. However, many general characteristics of the basin and its geology including slope of the various coal seams intersecting the watershed and similar information remain the same. This type of information was taken from the Scarlift Report in part to assist input of deep and surface mines.

AMD Data

The DEP McMurray District Office furnished much of the mine data for entry to WARMF. This includes coal status reports which detail existing and previous mining activity, mine operators, maps of coal crop lines (location where the coal seam intersects the ground surface), locations of strip mines and surface mines, and coal seam contour lines. These coal reports along with USGS 7.5 minute quadrangle maps were used to determine the locations of deep and surface mines that discharge into the creek. The coal maps and the WARMF map were aligned to determine the size of coalmines in each WARMF catchment. Only mines that were thought to discharge into the creek were modeled. Mines below the water table were assumed not to contribute AMD.

The thickness of mine overburden was estimated using the contour and coal maps. An average thickness of 500 cm (roughly 16 ft) was estimated and used for most surface mines. The deep mine overburden was estimated at 1,500 cm.

Appendix C catalogues mine information in 173 subcatchments in the model. The table presents a mine index number, the creek the mine drains to, and the WARMF subcatchment number where the mine is located. Data for surface mine includes surface mined area, percent of surface mine land use in the catchment, and thickness of overburden. Data for deep mine includes area and thickness of deep mine overburden.

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If a subcatchment in the table in Appendix C has both surface and deep mines, all entries in the row are complete. If the subcatchment has only a deep mine, the area of surface mine is zero. If it only has a surface mine, the area of deep mine is zero. When the deep mine is below the groundwater table, it is indicated in the table. Deep mines below the groundwater table are not entered into the model. Of the 173 subcatchments listed in the table, approximately 130 of them contain parts of mines that are above the water table and thus included in the model.

The majority of the mines are located in Robinson Run and Millers Run in the northwestern region of the watershed and along the mainstem of the creek from Carnegie to Chartiers Run. Though mines exist in the Little Chartiers Creek Subwatershed, most are below the water table and are excluded from the model.

In addition to the physical dimensions of the mine area, the pyrite and calcite contents of the overburden was input into WARMF. Overburden analyses from the Greensburg Mining Office were used to estimate mineral contents in the mines. Mineral content was also adjusted during water quality calibration to produce the correct pH values and pollutant concentrations in the receiving water.

WATER QUALITY LIMITED SECTIONS

The PADEP updated the 303(d) list of WQLS in the watershed for 2000. Appendix D provides a complete listing of the impaired stream segments. The list is organized in alphabetic order of creek names. Appendix E is a table that cross references each WQLS with the index numbers shown on maps of the watershed (Figures 3.22 and 3.23). These maps indicate locations of the 107 WQLSs in Allegheny and Washington Counties.

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32

22 23

95 61 21 NL 22 60 94 91 91 NL 22 93 22 22 110 56 22 92 22 89 90 104 56 57 104 105 90 22 56 107 109 98 108 29 57 101 55 22 100 97 103 55 29 100 99 55 96 102 106 87 73 103 NL 26 75 88 54 97 82 55 74 53 59 73 76 86 83 52 53 26 80 79 77 59 82 33 85 81 80 76 81 84

Figure 3.22 WQLS in Allegheny County.

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78 33 30 14 NL 20 34 26 15 48 16 20 13 50 11 19 9 30 4 49 31 5 8 34 26 47 12 7 47 47 12 10 26 6 44 65 11 31 64 17 46 44 43 45 31 18 51 64 NL 1 3 66 67 38 3 35 64 42 2 3 70 64 NL 36 3 58 3 67 68 69 NL NL 3 39 NL 3 37 40 NL 40 3 3 NL 28 71 28 72 24 41 28 24 NL NL

63 62 28

27

25

Figure 3.23 WQLS in Washington County.

Sources and causes of impairment for WQLSs on the 303(d) list are outlined in Table 3.7

Table 3.7 Sources and causes of impairments on the 303(d) list.

Source Cause of Impairment Abandoned mine Salinity, TDS, chlorides, metals, siltation drainage

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Surface mining Salinity, TDS, chlorides, turbidity Turbidity, siltation, suspended solids, other habitat alterations, flow Construction alterations Turbidity, nutrients, siltation, other habitat alterations, organic Habitat modification enrichment/low D.O. Agriculture Nutrients, turbidity, siltation On site wastewater Nutrients, organic enrichment/low D.O. Urban runoff, storm Suspended solids, nutrients, siltation sewers, overflows Hydro-modification Water/flow variability, flow alterations, other habitat alterations Source unknown Priority organics (PCB), pesticides (Chlordane)

In Pennsylvania, the 303(d) list was based on biological assessment rather than water quality assessment. During water quality assessments, scientists measured or compiled water quality data for a river section. The concentrations of water quality constituents were compared to numerical water quality criteria to determine if the measured water quality can support the designated use of the river section. If the water quality criteria were exceeded, the river section was added to the 303(d) list.

Under a biological assessment, biologists measure temperature, pH, dissolved oxygen and total dissolved solids (conductivity). They make observations of aquatic flora and fauna in the water and sediment. A professional judgment determines if the site is biologically impaired or not. If the site is judged to be impaired, it is added to the 303(d) list. The cause of impairment is noted generally as siltation, turbidity, suspended sediment, nutrients, metals, etc., without necessarily measuring parameters more directly related to these impairments. Without actual water quality data, it was not possible to perform a water quality assessment of each WQLS on the 303(d) list.

DESIGNATED USES

The designated uses of Chartiers Creek were listed previously in Chapter 1 in Table 1.1. The stream segments associated with these uses can be shown in WARMF. Figure 3.24 shows the extent of the warm water fish (WWF) habitat in the watershed. The river segments designated for WWF are shown in yellow. Figure 3.25 shows the extent of the trout stocking fishery (TSF) habitat of the basin. This use only pertains to Thoms Run. Figure 3.26 shows the high quality water (HQ) sections of the Chartiers Creek. The high quality designations are water supply

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reservoirs which are to be protected by a zero TMDL. The model has been set up to perform TMDL calculations for the multiple criteria associated with these uses

Figure 3.24 Designated warm water fishery habitat.

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Thoms Run

Figure 3.25 Designated trout stocked fishery habitat.

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Reservoir No. 2

Reservoirs No. 3 & 4 (not delineated)

Figure 3.26 Designated high quality waters.

WATER QUALITY CRITERIA

To protect the designated uses of WQLSs, water quality criteria must be met. The Pennsylvania Code, Title 25 has a detailed specification of water quality standards under various circumstances.

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WARMF will adjust the point and nonpoint source loadings of pollutants until the simulated water quality meets the criteria for its designated use. For such automated calculations, WARMF does not accept criterion with conditional factors. For example, the model does not consider water temperature criteria that vary in time by season. Consequently, the temperature criteria were set to less than 23 oC and less than 30oC for TSF and WWF uses, respectively. Dissolved oxygen (DO) criteria also vary in time, and were set greater than 6 oC and greater than 5oC for TSF and WWF, respectively.

For the automatic TMDL calculations, the most stringent criteria are to be meet under all circumstances. These criteria are not identical to the official water quality standards in the state code. We will refer to them as the proposed water quality criteria. The proposed water quality criteria do not account for time-varying criteria, as described above.

Table 3.8 presents the proposed water quality criteria for the designated uses of warm water fish and coldwater fish (trout stocked fishery). The manganese criterion is based on the protection of human health. Criteria for the designated use of high quality waters (HQ) are not needed because the TMDL for these WQLS is to be zero.

Table 3.8 Proposed Water Quality Criteria for TMDL Calculations. Warm Trout water stocked Parameter fishery fisher Alkalinity >20 mg/l >20 mg/l Aluminum < 0.75 mg/l < 0.75 mg/l Ammonia, N <10 mg/l <10 mg/l Bacteria 200 MPN/100 ml 200 MPN/100 ml Dissolved oxygen > 5 mg/l > 6 mg/l TDS 500 mg/l 500 mg/l Temperature <30 oC <23 oC Total iron < 1.5 mg/l < 0.5 mg/l T. Suspended Sediment 750 mg/l 750 mg/l PH 6.0 to 9.0 6.0 to 9.0 Manganese < 1.0 mg/l < 1.0 mg/l Nitrate, N <10 mg/l <10 mg/l T. Dissolved Solids < 500 < 500

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All criteria are specified as a daily concentration except TDS and bacterial (fecal coliform). Two criteria are specified for TDS: daily TDS less than 750 mg/l; and average monthly TDS less than 500 mg/l. The criterion for bacteria is a five-day geometric mean of less than 200 per 100 ml. The proposed compliance level for all criteria is 99% of the time.

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4. MODEL CALIBRATION

INTRODUCTION

Based on digital elevation map, land use, mine overburden and other input information, WARMF uses daily meteorology to simulate runoff from catchments. The runoff and its associated pollutants are routed through small creeks to the main stem of the Chartiers Creek. The simulation is performed for every catchment and river segment every day throughout the years. The output is the daily time series of flow and pollutant concentrations for all river segments.

Model predictions can be compared to observed data at various locations and times. Model calibration is a procedure in which model parameters are adjusted to improve the matches between predicted and observed values.

Model calibration follows a number of logical steps. The hydrological calibration of flow is made before the water quality calibration of pollutant concentrations. This chapter describes the calibration results. The results are presented for only a selected number of stations, parameters, and times. Other results can be viewed from the Engineering Module when in Output Mode.

HYDROLOGY CALIBRATION

Calibration Parameters

Important hydrology calibration parameters included precipitation weighting factor, evaporation coefficients, soil field capacity and saturated moisture content, snow melt coefficients, and hydraulic conductivity. Precipitation weighting factor was adjusted to translate the amount of precipitation that occurred at the weather station to the amount occurring at the catchment. This factor accounts for orographical effects due to elevation differences. The factor was modified in conjunction with the evaporation coefficient so that the correct amount of precipitation was 4-1 applied to the catchments and the right amount of runoff was produced by WARMF. Snowmelt coefficients were adjusted to match the rising limb of the hydrograph in the spring. Field capacity, horizontal and vertical hydraulic conductivity, and saturated moisture of the soil were adjusted to match the recession limb of the hydrograph and the dynamic fluctuations between storms.

Chartiers Creek at Lagonda

WARMF provides three graphical comparisons: time series, frequency distribution, and cumulative curves. These three comparisons constitute the necessary and sufficient conditions for the validity of the model.

Figure 4.1 compares the observed and simulated time series of flows at the Lagonda station. The agreement over the three-year simulation period appears reasonable. The seasonal variation of observed flows is tracked well by the model. The flows were low in the summer and high during the spring melt seasons.

Most storm peaks are matched accurately. The two largest observed peaks are under predicted by the model, but the magnitude of error is approximately 1 m3/s. Precise prediction on the timing and magnitude of peak flow is difficult because Lagonda is near the headwaters of the creek where the stream flows are dynamic. Heavy precipitation after a dry period can cause stream flows to increase over an order of magnitude in a single day. For example, the flow increases from 0.07 to 2.4 m3/s in roughly 24 hours at the end of May in 1984.

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Figure 4.1 Comparison of simulated and observed flows at Lagonda station.

Frequency distribution curves are compared to evaluate whether the model predictions for large and small events are in the right proportion. Figure 4.2 compares the frequency distribution curves of simulated and observed flows at Lagonda. The agreement between curves is also reasonable. The simulated frequency distribution curve follows the shape of the observed curve, but the model has a tendency to slightly over-predict the lower 60% of flows (flows less than 0.1 m3/s). The model also slightly under-predicts higher flows (flows of 0.1 and 0.3 m3/s).

The curves also indicate that roughly 50% of flows are less than 0.1 m3/s, and roughly 80% of flows are less than 0.2 m3/s. In other words, the majority of flows are less than 0.1 m3/s, or 3.5 ft3/s. Only approximately 5% of the flows are greater than 0.4 m3/s.

Figure 4.3 compares the cumulative hydrographs of simulated and observed flow at Lagonda station. Very little difference can be seen between observed and simulated cumulative flow. The agreement is very good, indicating that WARMF is capable of maintaining a good water balance in this small, headwater location.

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Figure 4.2 Frequency distributions of simulated and observed flows at Lagonda station.

Figure 4.3 Cumulative hydrographs of simulated and observed flows at Lagonda.

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Chartiers Creek at Carnegie Station

Figures 4.4 to 4.6 compare observed and simulated flows of Chartiers Creek at Carnegie in three ways: time series, frequency distribution, and cumulative hydrograph. The station at Carnegie is the downstream-most station in the watershed. The time series comparison indicates that the model predicts the general seasonal variation of flows well. Simulations of the small and moderate storms as well as many of the storm peaks are captured by the model.

Figure 4.4 Time series of simulated and observed flows at Carnegie.

The simulated frequency distribution of flows follows the observed distribution closely. Both curves indicate that 50% of flows are less than approximately 4 –5 m3/s and that 90% of flows are less than roughly 15 - 20 m3/s. The model also under-predicts the highest 50 to 80% of flows (flows from 5 – 10 m3/s), while it over-predicts flows roughly 90 to 95% greater than other flows (flows from 15 – 60 m3/s).

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Figure 4.5 Frequency distribution of simulated and observed flows at Carnegie.

The cumulative flow pattern at Carnegie tracks that of the observed through the simulation period (Figure 4.6). The plot also shows that simulated cumulative flow is consistently higher until the end of the simulation. This occurs primarily because the model over-predicts the flow volume from March to April in 1994, and this additional volume is translated through the simulation period.

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Figure 4.6 Cumulative hydrograph of simulated and observed flows at Carnegie.

WATER QUALITY CALIBRATION

Water quality calibration consists of varying model parameters to match observed stream quality data. Model parameters commonly adjusted include: mineral weathering rates, land applications of fertilizers or de-icing salts on roads, soil erosion rates, and soil mineral compositions. These parameters can be but are not usually measured in the watershed. Their values are adjusted within commonly accepted ranges during the calibration.

WARMF simulates a large number of water quality parameters including the following for which water quality calibration plots are shown:

• Temperature • Phosphate (or Total P) • pH • Calcium • Dissolved oxygen • Magnesium • Total dissolved solids • Potassium • Nitrate (or Total N) • Chloride • Alkalinity • Sodium

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In theory, it is possible to compare time series, frequency distribution, and cumulative curves for water quality parameters. In practice, observed water quality data is usually much less abundant than observed stream flow data. Usually only time series comparisons of water quality parameters can be made. The objective is to make sure that the model predictions follow the trend and that the predicted and observed values are in the same range.

Figure 4.7 presents the locations where water quality simulations are compared to observed data. The eight locations, roughly from upstream to downstream, are:

• Chartiers Creek at Lagonda • Chartiers Run • Chartiers Creek at Peters Bridge • Little Chartiers Creek • Chartiers Creek upstream of Bridgeville • Millers Run near of Cecil Township • Robinson Run near McDonald • Chartiers Creek at Carnegie.

With the WARMF CD, comparisons of simulated and observed water quality data for all the locations can be reviewed. The following sections show time series comparisons for various water quality parameters at these stations.

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Chartiers Cr, Carnegie

Robinson Rn near McDonald Chartiers Cr u/s of Bridgeville

Millers Rn near Cecil Chartiers Cr at Peters Br

Little Chartiers Cr Chartiers run near mouth

Chartiers Cr., Lagonda

Figure 4.7 Locations of water quality calibration plots.

Temperature

Figures 4.8 to 4.15 compare simulated and observed water temperatures at each of the eight location. Plots are in order roughly from upstream to downstream. Overall, the model predictions are close to measured data. The seasonal pattern of water temperature is evident in the plots. WARMF tracks these variations well.

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Figure 4.8 Temperature of Chartiers Creek at Lagonda.

Figure 4.9 Temperature of Chartiers Run.

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Figure 4.10 Temperature of Chartiers Creek at Peters.

Figure 4.11 Temperature of Little Chartiers Creek at Linden.

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Figure 4.12 Temperature of Little Chartiers Creek upstream of Bridgeville.

Figure 4.13 Temperature of Millers Run near Cecil.

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Figure 4.14 Temperature of Robinson Run near McDonald.

Figure 4.15 Temperature of Chartiers Creek at Carnegie.

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Dissolved Oxygen

Figures 4.16 to 4.19 compare simulated and observed DO at the following stations: Chartiers Creek at Peters Bridge, Chartiers Creek upstream of Bridgeville at Washington and Boyce Roads, and at Carnegie. In general DO concentrations appear to reflect its solubility, which is a function of temperature. High flow velocities of the creek may help concentrations remain relatively high and not become depleted by waste load input. Both data and model results show that DO generally does not dip below 5 or 6 mg/l, the statewide criteria.

Figure 4.16 DO concentrations in Chartiers Creek at Peters Bridge.

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Figure 4.17 DO in Chartiers Creek upstream of Bridgeville at Washington Road.

Figure 4.18 DO in Chartiers Creek upstream of Bridgeville at Boyce Road.

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Figure 4.19 DO in Chartiers Creek at Carnegie.

Alkalinity

Figures 4.20 to 4.25 compare the simulated and observed alkalinity at Chartiers Creek at Lagonda, Chartiers Creek at Peters, Little Chartiers Creek, Millers Run near Cecil, Robinson Run near McDonald, and at Carnegie.

Model results are typically in the same range as observed data. However, the model tends to predict slightly lower concentrations at some locations. For example, concentrations at Peters Bridge in Figure 4.21 range from 100 to 180 mg/l, and simulated concentrations range from 0 to 140 mg/l. Also, observed concentrations at Carnegie in Figure 4.25 range from 60 to 160 mg/l, while simulated levels range from 0 to 140 mg/l.

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Figure 4.20 Alkalinity of Chartiers Creek at Lagonda.

Figure 4.21 Alkalinity of Chartiers Creek at Peters Bridge.

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Figure 4.22 Alkalinity of Little Chartiers Creek at Linden.

Figure 4.23 Alkalinity of Millers Run downstream of Cecil.

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Figure 4.24 Alkalinity of Robinson Run downstream of McDonald.

Figure 4.25 Alkalinity of Chartiers Creek at Carnegie.

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Simulated and observed alkalinity concentrations are typically above 0 mg/l. Even in heavily mined regions such as near Cecil and McDonald the stream is consistently neutral or slightly alkaline. Natural weathering of minerals is the source of calcium, magnesium and other cations that contribute to these alkalinity levels. pH

Figures 4.26 through 4.33 show comparisons of simulated and observed pH at each of the eight locations. Simulated pH in the watershed follows observed concentrations reasonably well. Both observed and simulated pH usually varies from 7 to 8. In some cases observed levels approach 6 such as at Robinson Run near McDonald and at Carnegie in Figures 4.32 and 4.33. But observed data, as well as simulations for the most part, show that levels do not drop below 6 even in the more heavily mined regions like Robinson Run.

Figure 4.26 pH levels in Chartiers Creek at Lagonda.

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Figure 4.27 pH levels in Chartiers Run.

Figure 4.28 pH levels in Chartiers Creek at Peters Bridge.

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Figure 4.29 pH near the mouth of Little Chartiers Creek.

Figure 4.30 pH upstream of Bridgeville.

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Figure 4.31 pH of Millers Run downstream of Cecil.

Figure 4.32 pH of Robinson Run downstream of McDonald.

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Figure 4.33 pH of Chartiers Creek at Carnegie.

Nutrients

Nutrient simulations are important because many stream segments appear on the 303(d) list due to nutrient impairment. Unfortunately, nutrient and organic carbon data were not recorded at each location. Stations with nutrient data include: Chartiers Creek at Peters Bridge, Little Chartiers Creek, two stations along Chartiers Creek upstream of Bridgeville (Boyce Road and Washington Road stations), and Chartiers Creek at Carnegie.

The station on Chartiers Creek at Peters Bridge (downstream of Canonsburg) recorded significant total phosphorous (TP) data. Simulated TP concentrations at this location were somewhat lower than those observed (Figure 4.34). Observations ranged from 0.2 to 2.0 mg/l while simulated levels ranged from 0.2 to 1.4 mg/l. Also, the timing of the spikes in simulated TP, caused by runoff laden with sediment and phosphorous, does not correspond well to that of the observed TP. The station at Peters is downstream of the Canonsburg and Washington-East Washington sewage treatment plants (STPs), where phosphorous data is not recorded. Phosphorous levels in the effluent at these plants (as well as other large STPs in the basin) are

4-24 estimated at 0.2 mg/l which correspond to general observed TP levels at other locations in the watershed. Levels of TP higher than 0.2 mg/l discharged at the treatment plants could cause the discrepancy in simulated and observed values seen at Peters.

Figure 4.34 Total phosphorous in Chartiers Creek at Peters Bridge

The match of simulated and observed phosphate (P) or TP at other stations is better than that at Peters. Levels of observed and simulated TP at Carnegie, for example, fluctuate around 0.1 mg/l with a few spikes in concentration that reach approximately 0.5 mg/l (Figure 4.39)

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Figure 4.35 Phosphate in Little Chartiers Creek.

Figure 4.36 Total phosphorous in Little Chartiers Creek.

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Figure 4.37 Total phosphorous in Chartiers Creek near Bridgeville at Boyce Road.

Figure 4.38 Total phosphorous in Chartiers Creek near Bridgeville at Washington Road.

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Figure 4.39 Total Phosphorous in Chartiers Creek upstream of Bridgeville at Carnegie.

Ammonia (NH3), nitrate (NO3), and total nitrogen (TN) data were also measured at several locations in the watershed, though NH3 values were only recorded at the mouth of Little Chartiers Creek. NH3 simulations appear in line with observations at this location. Observed NH3 ranges from 0.05 to 0.2 mg/l, while the model predicts values of roughly 0.02 to 0.25 during this time.

NO3 and TN simulations are also in the range of observed data. Observed N and TN range from approximately 1 – 3 mg/l (Figures 4.41 through 4.44). Simulated N and TN follow these values, although simulated N upstream of Bridgeville (Figures 4.43 and 4.44) shows slightly less variability than observations. Observed N ranges from 0 to nearly 3 mg/l, while the model shows values of 0.4 to 2.0 mg/l. In general, simulated N and TN appear to be reasonably calibrated.

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Figure 4.40 Ammonia in Little Chartiers Creek.

Figure 4.41 Nitrate in Little Chartiers Creek.

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Figure 4.42 Total nitrogen in Little Chartiers Creek.

Figure 4.43 Nitrate in Chartiers Creek upstream of Bridgeville at Boyce Road.

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Figure 4.44 Nitrate in Chartiers Creek upstream of Bridgeville at Washington Road.

Total organic carbon data was recorded in Chartiers Creek at the Carnegie station. The model tracks these values with reasonable accuracy. Observed values fluctuate between 2 and nearly 6 mg/l, and the model predicts concentrations of 1 to 4.5 mg/l during this time.

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Figure 4.45 Organic carbon in Chartiers Creek at Carnegie.

Chlorides (TDS)

Chloride in the watershed originates from the weathering of hornblende and from the application of road de-icing chemicals. Chloride is also leached from irrigated croplands. Observed chloride concentrations in many areas ranged from 50 to 100 mg/l and in some locations such as Carnegie exceeded 200 mg/l. The model generally predicted levels on the order of 50 mg/l. Better estimates of chloride chemical de-icing application rates could possibly improve the match of simulated and observed concentrations.

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Figure 4.46 Chloride in Little Chartiers Creek.

Figure 4.47 Chloride in Chartiers Creek at Peters Bridge.

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Figure 4.48 Chloride in Millers Run near of Cecil.

Figure 4.49 Chloride in Chartiers Creek at Carnegie.

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Cations

Available cation data include measurements for calcium, magnesium, potassium, and sodium. These measurements were relatively abundant throughout the watershed. Simulations of these parameters data were tracked because they affect pH, alkalinity, and total dissolved solids, three important water quality indicators.

In general, simulated concentrations were in the range of observed data. Although the model under predicted cation concentrations at some locations, errors were not excessive. Because simulations of cation concentrations were reasonable, predicted concentrations of alkalinity and TDS were also favorable.

Figure 4.50 Calcium in Chartiers Creek at Lagonda.

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Figure 4.51 Magnesium in Chartiers Creek at Lagonda.

Figure 4.52 Sodium in Chartiers Creek at Lagonda.

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Figure 4.53 Potassium in Chartiers Creek at Lagonda.

Figure 4.54 Calcium at Chartiers Run.

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Figure 4.55 Magnesium at Chartiers Run.

Figure 4.56 Potassium at Chartiers Run.

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Figure 4.57 Sodium at Chartiers Run.

Figure 4.58 Calcium at Millers Run near of Cecil.

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Figure 4.59 Magnesium at Millers Run near of Cecil.

Figure 4.60 Potassium at Millers Run downstream of Cecil.

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Figure 4.61 Calcium at Robinson Run downstream of McDonald.

Figure 4.62 Magnesium at Robinson Run downstream of McDonald.

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5. LOADING ASSESSMENT

INTRODUCTION

WARMF calculates the daily loadings of point and nonpoint source pollutants. For the loading assessment of Chartiers Creek, a six year simulation from 1993 to 1999 (the base case simulation on the WARMF CD) was performed. The daily loadings were averaged over the years and reported in units of kilograms per day (kg/d). The parameters selected for assessment are the following: ammonia-nitrogen (NH3), total organic carbon (BOD), total phosphorous (TP), fecal coliform (FC), ferrous (FE+2)and ferric (FE+3) iron, sulfate (SO4, total dissolved solids (TDS), and total suspended sediment (TSS).

The calculated loadings are summed over groups of catchments, or subwatershed regions. The loadings are displayed on a bar chart corresponding to each region to show spatial distributions and relative magnitudes. Total loadings for a particular subwatershed can also be viewed in tabular form by double-clicking on a bar chart. This displays the contribution of load from each land use, from general non-point sources, from direct precipitation and deposition, from septic systems (if applicable), from unpermitted deep and surface mines, and from general point sources. Alternatively loads per area in kg/ha/yr can be viewed by clicking the Load per Area button at the bottom of loading parameter dialog.

SUBWATERSHED REGIONS

Figure 5.1 shows the sub-watershed regions created for the pollution loading assessment. The regions and their corresponding color are:

• North Branch of Robinson Run (salmon) • Robinson Run (white) • Millers Run (pale green) • Chartiers Run and Plum Run (aqua blue) • Chartiers Creek between Chartiers Run and Lagonda (bright yellow) • Chartiers Creek at Lagonda (magenta)

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• Little Chartiers Creek (lavender) • Chartiers Creek between Chartiers Run and Brush Creek (gray) • Brush Run (light blue) • Chartiers Creek between Brush Run and Millers Run (pink) • McLaughlin/Graesers Run (white) • Chartiers Creek between Millers Run and Robinson Run (pale yellow) • Chartiers Creek from Carnegie to the mouth (pale yellow).

Figure 5.1 Subwatershed Regions of Chartiers Creek Basin.

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AMMONIA NITROGEN

Table 5.1 lists point and non-point contributions by region. The tributary area for Chartiers Creek between Chartiers Run and Lagonda is the largest (140.8 km2). It receives one of the largest fractions of point source NH3 from the treatment plant in Washington.

Table 5.1 Annual regional loadings of ammonia nitrogen.

Tributary Loading, kg/d Region Area, km2 Point Nonpoint North Branch of Robinson Run 33.4 0.0 2.7 Robinson Run 68.5 1.5 5.2 Millers Run 72.3 2.4 0.8 Chartiers Run with Plum Run 60.5 0.0 2.8 Chartiers Cr betwn. Chartiers Run & Lagonda 140.8 21.6 2.1 Chartiers Cr at Lagonda 10.2 0.0 0.6 Little Chartiers Cr 128.4 0.7 0.6 Chartiers Cr betwn.Chartiers Run & Brush Creek 53.4 11.3 0.9 Brush Run 27.7 0.9 0.5 Chartiers Cr betwn.Brush Run & Millers Run 27.7 2.2 0.4 McLaughlin/Graesers Run 19.1 21.0 0.6 Chartiers Cr betwn.Millers Run & Robinson Run 27.1 26.6 1.6 Chartiers Cr from Carnegie to the mouth 51.7 12.7 2.3

Figure 5.2 presents the spatially distributed loading of ammonia nitrogen. Note the two sections of the bar charts. The upper section, magenta in color, represents the point source load. The green section on the bottom represents the nonpoint source load. The height of the bar indicates the magnitude of loadings. Loadings in the figure were not normalized by the tributary area.

The majority of NH3 loading in the watershed originates from point sources. Total point source NH3 is 101 kg per day, while the total nonpoint source NH3 is 21 kg per day. The few large sewage treatment plants in the watershed contribute the bulk of this load.

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Figure 5.2 Loading Charts of Ammonia Nitrogen.

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TOTAL ORGANIC CARBON

Figure 5.3 shows loading charts of total organic carbon (BOD). Table 5.2 lists loading rates from different regions.

Figure 5.3 Loading Charts of total organic carbon (BOD).

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Table 5.2 Annual regional loading of total organic carbon.

Tributary Loading, kg/d Region Area, km2 Point Nonpoint North Branch of Robinson Run 33.4 0.0 324.0 Robinson Run 68.5 3.4 812.6 Millers Run 72.3 4.9 535.1 Chartiers Run with Plum Run 60.5 0.3 470.7 Chartiers Cr betwn. Chartiers Run & Lagonda 140.8 62.0 1148.0 Chartiers Cr at Lagonda 10.2 0.0 64.3 Little Chartiers Cr 128.4 0.7 992.3 Chartiers Cr betwn.Chartiers Run & Brush Creek 53.4 24.6 483.4 Brush Run 27.7 7.0 266.0 Chartiers Cr betwn.Brush Run & Millers Run 27.7 4.6 220.4 McLaughlin/Graesers Run 19.1 47.3 153.7 Chartiers Cr betwn.Millers Run & Robinson Run 27.1 59.7 275.3 Chartiers Cr from Carnegie to the mouth 51.7 35.8 380.2

From the loading charts, total BOD loads seem to have constant loading rates per area. In other words, the normalized loads (loads per area) do not vary significantly. In fact total loading rates per area range only from 6 to 12 kg/d/km2. This is primarily because non-point BOD comprises the majority of total loading (over 6,000 kg/d versus 250 kg/d of point loading), and non-point BOD loading rates are fairly uniform throughout the watershed. It also interesting to note that BOD from combined/sanitary sewer overflows is small relative to general non-point sources. This is in contrast to NH3 loading which is dominated by CSO point source loadings in the regions where they exist (Figure 5.2).

TOTAL PHOSPHORUS

Figure 5.4 presents the loading charts of total phosphorus (TP) in Chartiers Creek. The same data in tabular form is presented in Table 5.3.

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Figure 5.4 Loading Charts of Total Phosphorus.

Total point source load of TP is 41 kg/d, and non-point load is 214 kg/d: over 80% of the total load is derived from non-point sources. Also, over 50% of the total load originates from Chartiers Creek between Chartiers Run and Brush Creek near Canonsburg (light yellow region in Figure 5.4). Observed stream water quality data concur with this result as shown at the Peters

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Bridge station (Figure 4.34) where observed data are consistently higher than those at other locations.

Table 5.3 Annual regional loading of total phosphorous.

Tributary Loading, kg/d Region Area, km2 Point Nonpoint North Branch of Robinson Run 33.4 0.01 3.32 Robinson Run 68.5 0.7 6.0 Millers Run 72.3 1.0 4.2 Chartiers Run with Plum Run 60.5 0.0 17.6 Chartiers Cr betwn. Chartiers Run & Lagonda 140.8 4.5 28.2 Chartiers Cr at Lagonda 10.2 0.0 2.7 Little Chartiers Cr 128.4 0.1 4.2 Chartiers Cr betwn.Chartiers Run & Brush Creek 53.4 2.7 128.3 Brush Run 27.7 1.0 10.2 Chartiers Cr betwn.Brush Run & Millers Run 27.7 1.0 2.9 McLaughlin/Graesers Run 19.1 10.1 1.2 Chartiers Cr betwn.Millers Run & Robinson Run 27.1 12.8 2.3 Chartiers Cr from Carnegie to the mouth 51.7 7.2 2.9

FECAL COLIFORM

Figure 5.5 shows the regional loading of fecal coliform (FC) from point and nonpoint sources. Table 5.4 shows this information in tabular form. The loading chart indicates that nearly all FC loads are from point source discharges. Further, almost all loads originate in the downstream (northern) section of the watershed where CSOs occur. CSOs discharge bacteria in sewage into the river during the storms, which occur 60 times a year on average.

The loading charts seem to indicate very little nonpoint FC. This occurs because the bar charts are scaled to the greatest loading chart. Since the CSO load of fecal coliform was so large, the nonpoint contribution was scaled to near zero. In reality, the nonpoint source load of fecal coliform is over 400,000E6 #/100ml per day. If CSOs were eliminated, nonpoint fecal coliform would still be a significant load.

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Figure 5.5 Loading Charts of fecal coliform.

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Table 5.4 Annual regional loading of total fecal coliform.

Tributary Loading, 106/d Region Area, km2 Point Nonpoint North Branch of Robinson Run 33.4 93 22,207 Robinson Run 68.5 6,120,000 50,000 Millers Run 72.3 7,830,000 40,000 Chartiers Run with Plum Run 60.5 18 48,682 Chartiers Cr betwn. Chartiers Run & Lagonda 140.8 29,600 78,400 Chartiers Cr at Lagonda 10.2 0 14,000 Little Chartiers Cr 128.4 284 54,000 Chartiers Cr betwn.Chartiers Run & Brush Creek 53.4 2,480 28,120 Brush Run 27.7 1,410 14,090 Chartiers Cr betwn.Brush Run & Millers Run 27.7 7,530,000 10,000 McLaughlin/Graesers Run 19.1 84,200,000 9,535 Chartiers Cr betwn.Millers Run & Robinson Run 27.1 106,000,000 25,860 Chartiers Cr from Carnegie to the mouth 51.7 49,600,000 30,342

FERROUS IRON

Figure 5.6 presents the regional loadings of ferrous iron (FE+2) in the Chartiers Creek Watershed, and Table 5.5 shows loading values in tabular form. The majority of FE+2 originates from non- point sources in Robinson and Chartiers Runs. Over 75% of FE+2 loading is derived from mines in these regions. The spatial loading of ferrous iron corresponds to land use and deep mine survey information that indicates high concentrations of abandoned or active surface and deep mines in these regions.

Table 5.5 Annual regional loadings of ferrous iron.

Tributary Loading, kg/d Region Area, km2 Point Nonpoint North Branch of Robinson Run 33.4 0.0 49.0 Robinson Run 68.5 0.0 111.0 Millers Run 72.3 0.0 1.0 Chartiers Run with Plum Run 60.5 0.1 105.0 Chartiers Cr betwn. Chartiers Run & Lagonda 140.8 0.0 10.0 Chartiers Cr at Lagonda 10.2 0.0 0.4 Little Chartiers Cr 128.4 0.0 0.0 Chartiers Cr betwn.Chartiers Run & Brush Creek 53.4 0.0 3.0 Brush Run 27.7 0.0 0.0 Chartiers Cr betwn.Brush Run & Millers Run 27.7 0.0 0.0 McLaughlin/Graesers Run 19.1 0.0 0.1 Chartiers Cr betwn.Millers Run & Robinson Run 27.1 0.0 3.3 Chartiers Cr from Carnegie to the mouth 51.7 0.0 6.5

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Figure 5.6 Loading Charts of ferrous iron.

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FERRIC IRON

Loading charts and tables of ferric iron (FE+3) are shown Figure 5.7 and Table 5.6, respectively. Nearly all FE+3 loading comes from the North Branch of Robinson Run and Millers Run. Some loading exists in other regions; however, the magnitude of the loading rates are many orders of magnitude lower than those in Robinson Run. These results also reflect known locations of active and abandoned mining operations.

Table 5.6 Annual regional loading of ferric iron.

Tributary Loading, kg/d Region Area, km2 Point Nonpoint North Branch of Robinson Run 33.4 0 0.0051 Robinson Run 68.5 0 0.0058 Millers Run 72.3 0 0 Chartiers Run with Plum Run 60.5 0 0 Chartiers Cr betwn. Chartiers Run & Lagonda 140.8 0 0 Chartiers Cr at Lagonda 10.2 0 0 Little Chartiers Cr 128.4 0 0 Chartiers Cr betwn.Chartiers Run & Brush Creek 53.4 0 0 Brush Run 27.7 0 0 Chartiers Cr betwn.Brush Run & Millers Run 27.7 0 0 McLaughlin/Graesers Run 19.1 0 0 Chartiers Cr betwn.Millers Run & Robinson Run 27.1 0 0 Chartiers Cr from Carnegie to the mouth 51.7 0 0

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Figure 5.7 Loading Charts of ferric iron.

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SULFATE

Graphical and numerical loading values of sulfate (SO4) are given in Figure 5.8 and Table 5.7, respectively. The total point and non-point loadings are 1,088 and 47,692 kg/d. A significant portion of the SO4 loading is derived from surface and deep mines. In Robinson Run alone, surface and deep mines contribute over two-thirds (32,282 kg/d) of the total loading (48,780 kg/d) in the watershed.

Note also that significant point sources of sulfate exist in the regions between Chartiers Run and Lagonda (light green in Figure 5.8), in the light yellow subwatershed downstream of Canonsburg, and also in the region from Carnegie to the mouth of Chartiers Creek. Point source SO4 shows up at these locations because ambient loads of SO4 were added to large STP dischargers that happen to be located in these subwatersheds. The ambient loads were estimated using observed stream concentrations of SO4 in the vicinity of the discharger, and also using the given flows at the STPs. Ambient loads were estimated because without them, the effluents would effectively be diluting the stream loads of SO4, thereby reducing the accuracy of simulated stream SO4.

Table 5.7 Annual regional loading of sulfate.

Tributary Loading, kg/d Region Area, km2 Point Nonpoint North Branch of Robinson Run 33.4 0 10,800 Robinson Run 68.5 0 21,600 Millers Run 72.3 0 879 Chartiers Run with Plum Run 60.5 0 8,010 Chartiers Cr betwn. Chartiers Run & Lagonda 140.8 448 1,752 Chartiers Cr at Lagonda 10.2 0 101 Little Chartiers Cr 128.4 0 471 Chartiers Cr betwn.Chartiers Run & Brush Creek 53.4 365 635 Brush Run 27.7 23 141 Chartiers Cr betwn.Brush Run & Millers Run 27.7 0 131 McLaughlin/Graesers Run 19.1 0 134 Chartiers Cr betwn.Millers Run & Robinson Run 27.1 0 1,210 Chartiers Cr from Carnegie to the mouth 51.7 252 1,828

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Figure 5.8 Loading Charts of sulfate.

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TOTAL DISSOLVED SOLIDS

Figure 5.9 shows the spatial loadings of total dissolved solids (TDS), and Table 5.8 provides corresponding numerical values. Loadings of TDS are derived primarily from nonpoint sources, significant portions of which are from surface and deep mines. Increased mineral weathering in the mining soil layers contributes greatly to these loads. Point sources of TDS are again due to the estimation of ambient dissolved solids that are specified in the point source files of the larger STPs.

Table 5.8 Annual regional loading of total dissolved solids.

Tributary Loading, kg/d Region Area, km2 Point Nonpoint North Branch of Robinson Run 33.4 19 49,381 Robinson Run 68.5 13 102,987 Millers Run 72.3 105 9,995 Chartiers Run with Plum Run 60.5 0 44,900 Chartiers Cr betwn. Chartiers Run & Lagonda 140.8 13,900 13,500 Chartiers Cr at Lagonda 10.2 0 3,240 Little Chartiers Cr 128.4 142 5,418 Chartiers Cr betwn.Chartiers Run & Brush Creek 53.4 8,660 7,240 Brush Run 27.7 2,460 1,670 Chartiers Cr betwn.Brush Run & Millers Run 27.7 17 1,833 McLaughlin/Graesers Run 19.1 184 2,896 Chartiers Cr betwn.Millers Run & Robinson Run 27.1 233 15,167 Chartiers Cr from Carnegie to the mouth 51.7 2,820 17,780

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Figure 5.9 Loading charts of total dissolved solids.

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TOTAL SUSPENDED SEDIMENT

Figure 5.10 presents the loading chart of total suspended sediment. Table 5.9 presents the loading in tabular form. Total suspended sediment loading is primarily caused by soil erosion during overland flow. Significant erosion can occur in both pasturelands and urban regions; however, the majority of TSS loading is derived from pasturelands. Overland flow, and thus TSS load, appear to be greatest in the region from Chartiers Creek between Lagonda and Chartiers Run. The loading in this subwatershed is partly exaggerated because it has the largest contributing area, but the loading here still comprises almost 40% of the total for the entire watershed.

Table 5.9 Annual regional loading of total suspended sediment.

Tributary Loading, kg/d Region Area, km2 Point Nonpoint North Branch of Robinson Run 33.4 0 41 Robinson Run 68.5 0 68 Millers Run 72.3 0 52,900 Chartiers Run with Plum Run 60.5 0 9,770 Chartiers Cr betwn. Chartiers Run & Lagonda 140.8 0 147,000 Chartiers Cr at Lagonda 10.2 0 2,360 Little Chartiers Cr 128.4 0 89,700 Chartiers Cr betwn.Chartiers Run & Brush Creek 53.4 0 21,200 Brush Run 27.7 0 11,800 Chartiers Cr betwn.Brush Run & Millers Run 27.7 0 11,700 McLaughlin/Graesers Run 19.1 0 4,980 Chartiers Cr betwn.Millers Run & Robinson Run 27.1 0 2,290 Chartiers Cr from Carnegie to the mouth 51.7 0 19,100

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Figure 5.10 Loading charts of total suspended sediments.

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6. TMDL PROCESS

STAKEHOLDER INVOLVEMENT

EPA guidelines require stakeholder participation in the TMDL process. Stakeholder involvement for the Chartiers Creek Watershed TMDL project has two phases. During Phase 1, the stakeholders assist development and calibration of the model by providing data and other information. In Phase 2, stakeholders help PADEP and EPA Region 3 develop TMDL allocations with WARMF.

PHASE 1 INVOLVEMENT

Stakeholders participated during a series of meetings and conference calls. The first stakeholder meeting took place in December 1999 at the Pennsylvania Department of Transportation office in Bridgeville, PA. An estimated 70 stakeholders from diverse backgrounds attended the meeting. The facilitator was Rita Coleman (PADEP SWRO, Pittsburgh). Lee McDonnell of PADEP, Harrisburg gave an overview of EPA's TMDL listing and calculation process. Carl Chen of Systech presented an overview of WARMF detailing how the model works, how Systech is going to adapt it to the Chartiers Creek Basin, and how the stakeholders can help collect local data. Joel Herr of Systech demonstrated the WARMF software with the examples of applications to the Catawba River Basin (North Carolina) and Cheat River Basin (West Virginia). Curtis Loeb of Systech then presented the progress on the Chartiers Creek Model and solicited additional data. The meeting concluded with a question and answer period during which stakeholders voiced concerns about the model and overall TMDL process.

At the first stakeholder meeting, the stakeholders were asked to complete and return stakeholder surveys. The surveys gathered contact information and asked stakeholders to rank various concerns. One purpose of the survey is to catalog stakeholder information so it can be entered into the Consensus Module of WARMF. This module provides quick access to contact

6-1 information and expertise so that stakeholders can be grouped efficiently during the consensus- building process.

Numerous stakeholders provided surveys to Lee McDonnell (PADEP, Harrisburg). Figure 6.1 is the Stakeholder List dialog in WARMF. It can be accessed by clicking Module ‚‚‚ Consensus from the main pull-down menu. When the Consensus Module dialog appears, choose the List button under step 1. The stakeholders include representatives from Chartiers Creek Water Quality Improvement Corporation, Chartiers Nature Conservancy, Consol, Inc., Creek Connections, Hedin Environmental, PADEP, Scott Conservancy, Skelly & Loy, Inc., USC Citizens for Land Stewardship, USDA (NRCS), and USEPA.

The dialog shows the list of stakeholder groups and the survey information for the Chartiers Nature Conservancy. The information about other stakeholders can be viewed by pointing and clicking at their names on the list.

Figure 6.1 Stakeholder information in the consensus module of WARMF.

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In May 2000 a second stakeholder group meeting was held in Heidelberg, PA. Representatives from PADEP offices in Pittsburgh, Greensburg, and Harrisburg along with stakeholders from several watershed groups attended the meeting. Systech reported progress made since the first meeting and addressed mining and combined sewer issues that were previously raised. A more detailed review of the Chartiers Creek Module was given and scenarios were presented to illustrate the capabilities of WARMF's TMDL module.

Subsequent to the meeting, a preliminary WARMF CD was distributed to EPA Region 3 and PADEP. This provides them with the opportunity to become familiar with WARMF.

PHASE 2 INVOLVEMENT

In Phase 2, PADEP, EPA, and stakeholders will collectively develop TMDLs with the calibrated WARMF model. This section of the report will describe the procedure to follow. It also shows example TMDL calculations.

The WARMF CD contains the calibrated model, the project database, and copies of this technical report and the WARMF technical documentation and users’ manual. This section will provide a general description of the procedures for TMDL calculations. Please refer to the user manual for a complete discussion of the menus for all operations

TMDL Road Map

The TMDL Module of WARMF provides a road map to guide the TMDL process. The TMDL Module can be accessed by selecting the TMDL button as shown in Figure 2.1. Alternatively, if the user is currently in another module, they can select Module‚‚‚TMDL from the pull-down menu. Figure 6.2 shows the main dialog of the TMDL Module.

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Figure 6.2 Road map for TMDL calculations.

Six steps are required to calculate a TMDL in WARMF. The first is to choose a scenario to represent the TMDL simulation. The WARMF CD contains a base case scenario that represents the current condition. To create a new scenario for TMDL, the base case scenario can be copied and given an appropriate name under Scenario‚‚‚Manager. The settings and the results of TMDL calculations will be saved under the new scenario name.

The second step is to specify the conditions for the TMDL calculation. The conditions include a WQLS, its designated use, and a water quality criterion for the designated use. To set the WQLS, push the Select button next to Water Quality Limited Section. This will activate the watershed map and change the cursor into a pointer. Select the WQLS (river or lake segment) on the map with the mouse. Press OK, and WARMF will return to the TMDL Module and display the name of the selected WQLS in the dialog. To select a designated use, push the down arrow 6-4 button to the right of the selection box. WARMF will display a pull-down menu, showing Warm Water Fishery, Trout Stocked Fishery, and High Quality Waters. Click one designated use, and WARMF will display the selection in the box. To select the water quality criterion for the designated use, click on the down arrow to the right of the selection box. WARMF will display a pull down menu showing various criteria of the selected designated use, e.g., pH greater than 6, total iron less than 1.5 mg/l, etc. Choose one for which to calculate a TMDL. Alternatively, the user can push the Edit button to add a new criterion or change an existing one.

Step 3 is to specify the conditions of loading for a TMDL parameter. The pollutant for which the TMDL will be calculated must first be specified. Push the down arrow to the right of the selection box. The selected constituent may not be the same as the criterion parameter in Step 2. However, the selected constituent must have an effect on the concentration of the water quality criterion. For example, the TMDL of BOD or ammonia can be calculated to meet a dissolved oxygen criterion. The TMDL of ammonia, nitrate, or phosphate can be calculated to meet the chlorophyll-a criterion of a lake. If an irrelevant constituent is selected, WARMF will display the message “…no effect…” after simulation.

In Step 3, the user also has the option to calculate point source loading given a fixed non-point loading scheme, or vice versa. Fixed loading multipliers can be set for the TMDL parameter or for other parameters that contribute to total loading. For example, if the water quality criterion restricts total iron and non-point source ferric iron is to be calculated by the model, multipliers can be set for either ferrous or ferric iron, as in Figure 6.2.

Starting the simulation is the fourth step. When the Start button is pushed, WARMF will show a dialog for the simulation control (Figure 6.3). The beginning date, ending date, time-step, the simulation categories, and subwatersheds to run are used to set up the simulation.

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Figure 6.3 Simulation control dialog box.

In WARMF, catchments, stream segments, and lakes are grouped into subwatershed regions. The downstream-most river or lake segment of a subwatershed region is referred to as the interface point. As a part of the graphical user interface, WARMF saves the simulation results at the interface points for use as the boundary conditions for the next subwatershed downstream. In the simulation control, the user can turn off any subwatershed provided that the boundary conditions at the interface point are available from a previous simulation.

The subwatershed feature was originally designed to save computer time, but is also very useful during TMDL calculations. For upstream TMDLs, there will be only one subwatershed to simulate. For downstream TMDLs, upstream subwatersheds for which TMDLs have been calculated can be turned off. WARMF will step down the pollution load in the subwatersheds being run until the water quality criterion is met at the WQLS.

To move to the second WQLS, the user will turn on all subwatershed tributaries to the second WQLS, but turn off the subwatersheds upstream of and including the first WQLS to preserve its TMDL results.

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The selection of subwatersheds for each WQLS requires a familiarity with the basin map. WARMF can provide some help in this regard. In the main Engineering Module, the user can select Subwatersheds from the View pull down menu. Subwatersheds corresponding to those in the simulation control dialog (Figure 6.3) will be shown in multiple colors as in Figure 6.4.

Figure 6.4 View of the Subwatersheds.

WARMF calculates TMDL for one WQLS at a time. It uses a ‘bottom up’ approach in which the calculation starts from the most upstream WQLS and proceeds one by one downstream. This

6-7 is because water pollution is confined to the river system and follows an upstream to downstream relationship. The river system is not a completely mixed reactor. We cannot have a top down procedure, in which the total TMDL is determined for the entire river basin and then allocate the load to individual dischargers.

WARMF calculates TMDL by stepping down the loading until the water quality criterion is met. The step down procedure is applied to the point source loads under a specified level of nonpoint source control, or alternatively applied to the nonpoint source loads under a specified level of point source control. If WARMF cannot find a TMDL to meet the water quality criterion, the user must specify a higher level of fixed control for either point or nonpoint source loads.

The fifth step of the TMDL dialog is to review loading and water quality results. Loading results are similar to those shown in Chapter 5, Loading Assessment, and can be viewed after the simulation has finished by pressing the Loading button. Water quality results indicate whether or not stream or lake segments meet the criteria for their intended uses. Stream segments are shown either in green if they meet the criteria or red if they violate the criteria.

The last step is to view and save acceptable TMDL results. When the View button is pressed, the View and Edit TMDL dialog appears (Figure 6.5). In the figure, three TMDLs have been saved. In the second TMDL result, total phosphorous is the pollutant, and the resulting point and non- point source loads are 4.55 kg/d and 44.1 kg/d, respectively. The multiplier applied to point sources is 0.5 (a 50% reduction) and the non-point source multiplier calculated by the model is 0.77. For each acceptable TMDL, press OK to save the results for later evaluation.

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Figure 6.5 View and Edit TMDL dialog.

EXAMPLE TMDLS

This section will demonstrate the calculation of TMDLs using WARMF. The examples will be conducted for Brush Run, McLaughlin Run, Millers Run, and Robinson Run subwatersheds (Figure 6.6). These subwatersheds were chosen to illustrate TMDL calculations because they are small and have no upstream tributaries; TMDL examples are thus relatively simple. These example scenarios are included along with the base case scenario on the WARMF CD.

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Figure 6.6 Location of Robinson, Millers, McLaughlin and Brush Run subwatersheds.

Based on the bottom-up TMDL approach, calculations would normally begin at the upstream- most segments of the subwatersheds and continue downstream. For simplicity however, TMDLs were calculated only for the downstream-most segment of each subwatershed. In other words, point and nonpoint loadings from all tributaries to the WQLS were adjusted to meet the water quality criterion.

The simulations spanned six years from 1993 to 1999, thus including high and low flow conditions required for TMDL calculations. TMDLs were calculated for alkalinity, total iron, total suspended sediment, total dissolved solids, and fecal coliform bacteria. Stakeholders can use the WARMF CD to work on the example problem and confirm results.

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Alkalinity

As shown in Figure 6.7, the scenario name is AlkTMDL. The WQLS was the Mouth of Brush Run, and the designated use was warm water fishery. The water quality criterion to meet was the minimum daily alkalinity greater than 20 mg/l, 99.9% of the time.

Figure 6.7 Dialog for alkalinity TMDL.

The TMDL pollutant was calcium so that the loading of alkalinity (CaCO3) was adjusted to meet the alkalinity criterion. The point source multiplier was set to 1, which meant no adjustment would be made to the point source loading. WARMF calculated the TMDL by stepping up the nonpoint loading of alkalinity (Ca) until the concentration of alkalinity meets the criterion.

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The resulting loading of calcium required to meet the alkalinity TMDL was calculated to be 817 kg/d of calcium, compared to 551 kg/d in the base case (Figure 6.8). An example management alternative could be to add 226 kg/d of lime to the stream to meet the water quality objective for alkalinity.

Figure 6.8 Loading of calcium for the Alkalinity TMDL.

Total iron

Figure 6.9 presents the road map of TMDL for iron. The scenario name was FeTMDL. The WQLS was Robinson Run near McDonald. The designated use was warm water fishery, and the water quality criterion was the maximum daily total iron less than 1.5 mg/l 99% of the time.

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Figure 6.9 Dialog for the TMDL of total iron.

The TMDL pollutant was ferrous iron, the principal component of total iron in Brush Run. The TMDL was calculated for the non-point source load. The nonpoint source loads of ferrous and ferric irons were known to be small in Brush Run. The multiplication factor for non-point ferric iron was set 0.75, though this multiplication factor would have an insignificant effect on the actual TMDL calculation since there was little point load of ferric iron in the database.

Figure 6.10 shows the result of TMDL calculations. The non-point source TMDL for iron was 18.8 kg/d, compared to 40.5 kg/d under the base conditions.

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Figure 6.10 Point and nonpoint loading for the TMDL of total iron.

Total Suspended Sediment

Figure 6.11 presents the dialog for TMDL of total suspended sediment. The scenario name was TSSTMDL. The WQLS was the Mouth of Brush Run. The designated use was warm water fishery. The proposed water quality criterion was a concentration below 80 mg/l at a 99% compliance level.

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Figure 6.11 Dialog for TMDL of total suspended sediment.

The TMDL pollutant was clay, which is a major component of TSS in the stream. The TMDL was calculated for nonpoint loads of clay, while the nonpoint load of silt was set to a reduction of 50% (factor of 0.5). The multiplication factor for the point load of clay was set to 1, which meant no change from zero in the base case.

Figure 6.12 shows the result of TMDL calculations. The TMDL was 3,770 kg/d compared to 11,800 kg/d for the base case. The non-point loading reduction factor of clay was 0.08, meaning clay loading was reduced 92% from the base case.

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Figure 6.12 Results of TMDL calculation for TSS.

The sediment load may be reduced by the installation of buffer strips. WARMF can be used to evaluate the percentage and width of buffer strips needed to meet the water quality criterion of total suspended sediment.

Fecal Coliform

Figure 6.13 presents the dialog for the fecal coliform TMDL. The scenario name was FCTMDL. The WQLS was McLaughlin/Graesers Run, and the designated use was warm water fishery. The water quality criterion was 200 MPN/100 ml at 99% compliance level. The TMDL pollutant

6-16 was fecal coliform, and the control option was point source load with zero reduction on nonpoint source load.

Figure 6.13 Input dialog for TMDL of Fecal Coliform.

Figure 6.14 presents the results of this TMDL. The calculated TMDL was 66,300x106/d compared to 84,200,000x106/d for the base case.

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Figure 6.14 Results of Fecal Coliform TMDL.

Total Dissolved Solids

Figure 6.15 is the road map for total dissolved solids TMDL. The scenario name was TDSTMDL. The WQLS was the Millers Run near Cecil, and the designated use was warm water fishery. The water quality criterion was a daily concentration below 750 mg/l at 99% compliance level. An alternate criterion for TDS is a 30-day average concentration below 500 mg/l.

The TMDL pollutant was sodium (NA), a component of TDS. The time series pattern of NA follows that of TDS. Na is the natural weathering by-product of hornblende minerals that exists

6-18 in the watershed. Also, it was assumed that chloride compounds with sodium were added to roadways in the winter.

The TMDL was calculated for nonpoint source load. Figure 6.16 presents the resulting TMDL: 1,800 kg/d compared to 1,880 kg/d for the base case. Only a small reduction in sodium was required to satisfy the criterion. This small reduction could probably be accomplished in turn through a small reduction in the use of roadway salts.

Figure 6.15 Dialog for TMDL of Total Dissolved Solids.

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Figure 6.16 TMDL for TDS at Millers Run near Cecil.

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7. SUMMARY AND CONCLUSIONS

SUMMARY

The Watershed Analysis Risk Management Framework, a decision support system designed for TMDL calculation, was adapted to the Chartiers Creek Basin. The adaptation was accomplished by importing site-specific digital elevation maps, land use, meteorology and air quality, mining maps, observed stream flows and water quality data.

Stream segments in the model were delineated so that TMDLs can be developed for the 107 water quality limited sections in the watershed. Deep and/or surface mines were modeled in nearly half of the catchments in the basin. Combined/sanitary sewer overflows (CSO) were calculated by assuming that 35% of surface runoff and interflow infiltrated into the sewers and that CSOs occur an average of 60 times a year.

During the course of the project, a stakeholders group was organized. They provided assistance in the compilation of local data and other information. They also raised the issues of CSO and inter-basin mine drainage in stakeholder meetings. After discussions, they recommended how these issues might be addressed in the model. The group became familiar with WARMF and is ready to assist the TMDL development for the Chartiers Creek Watershed.

Hydrologic simulations were calibrated and determined to be acceptable. The simulated overall water balance at the two main flow stations was within an acceptable range of observed data. The frequency distributions of simulated and observed flows also coincided through the range of frequent low flows and infrequent large flows. The model was able to capture the timing and magnitude of most large storm events fairly well.

The water quality model was also calibrated with observed data. Overall, the model predictions were within the range of observed values for a satisfactory calculation of TMDL, the ultimate objective of the project.

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CONCLUSIONS

Based on work performed and evidence presented in this report, the following conclusions can be made:

1. WARMF has been adapted and calibrated to the Chartiers Creek Watershed with available data. It is ready to serve as a scientific tool to calculate TMDL for the 107 WQLS in the basin.

2. WARMF simulates the nonpoint source loads, stream flows, and water quality conditions on a daily time step for 6 years (current Base Case). WARMF has considered the water quality of all seasons in the TMDL calculation.

3. The match of simulated and observed stream flow is very good. The match of simulated and observed stream water quality is reasonable. TMDL is a measure of assimilative capacity, which is a function of flow and water quality criteria. With a good simulation of stream flow, WARMF can calculate TMDLs with a reasonable accuracy, provided that the water quality simulations are also reasonable.

4. The method to calculate CSOs was based on available sewer data and typical values in the literature. The overall results are very similar to those of the modeling study conducted by ALCOSAN.

5. There were suggestions of inter-basin transfer of acid mine drainage in the northwest region of the watershed. However, there was no data to support the modeling of inter- basin transfers.

6. Due to the presence of calcite and other buffering minerals, the surface and deep mines in the watershed generally produced drainage of significant alkalinity, very high TDS, and near neutral pH. In general, mine discharges were neutral mine drainage rather than acid mine drainage. Most of ferric iron remains in the soil and does not drain to the river.

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7. Primary water quality impairments in Chartiers Creek are caused by CSO discharges of ammonia, fecal coliform, and phosphorous, sediment erosion predominantly in pasture land uses, TOC from overland flow, nonpoint source loads of sulfate, chloride and other dissolved solids, and metals dissolved in AMD and NAMD. However, AMD was not as evident as was expected.

8. The margin of safety is a factor to account for the uncertainty in developing a TMDL. For WARMF, the parameter estimates are constrained by scientific data. Any large error in the estimate would lead to unreasonable predictions that deviate from observed data. The model calibration has minimized the error of parameter estimates. Compared to the observed data, the model has an equal chance of over-prediction and under-prediction. Stakeholder can chose any factor of safety that they judge appropriate. We believe that a 20% discount on the TMDL may be appropriate.

9. PADEP used biological assessment to prepare the 303(d) list of water quality limited sections. As a result, there is a lack of water quality data to support a water quality assessment and a complete model calibration. New water quality data can be collected and imported to WARMF in the future.

10. The sample calculations of TMDL were based on the proposed water quality criteria. The matrix of several criteria was based on the daily maximum value. In general, it is better for the criterion to base on a running average of 3, 4 or 7 days. This will reduce the chanced error of a single prediction to affect the final TMDL.

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8. REFERENCES

1. Ackenheil, A. C. (1970). "Pollution Survey of Chartiers Creek Drainage Basin." Rept. to PA Dept. of Mines and Mineral Industries, Contract No. SL-102. ACAA Project 69077, March15.

2. Barnes, Tom (2000,1). "ALCOSAN, towns urged to solve sewage overflow problem." February 7, 1999, Pittsburgh Post-Gazette.

3. Barnes, Tom (2000,2). "Alcosan spending $400M in improvements, including odor control." February 7, 1999, Pittsburgh Post-Gazette.

4. Brady, K., M. Smith, J. Schueck, eds. (1998). "Coal Mine Drainage Prediction and Pollution Prevention in Pennsylvania." PA DEP, Harrisburg, PA.

5. Chen, C. W., J. Herr, L. Ziemelis, M. C. Griggs, L. L. Olmsted, R. A. Goldstein (1997). "Consensus Module to Guide Watershed Management Decisions for Catawba River Basin", Envir. Profl., 19 (September), 75-79.

6. Chen, C. W., J. Herr, L. Ziemelis (1998, 1). "Watershed Analysis Risk Management Framework - A Decision Support System for Watershed Approach and TMDL Calculation". Documentation Report TR110709, Electric Power Research Institute, Palo Alto, CA.

7. Chen, C. W., R. A. Goldstein, J. Herr, L. Ziemelis, L. Olmsted (1998, 2). "Uncertainty Analysis for Watershed Management". IN: Proceedings from WEF Conference Watershed Management: Moving From Theory to Implementation, Denver, CO, May 3-6, 1998.

8. Chen, C. W., and J. Herr (2000). "Adaptation of WARMF to Calculate TMDLs for the Acid Mine Impaired Cheat River, West Virginia." Draft Report to Stakeholders of Cheat River Watershed; prepared for EPA Region 3, Philadelphia (unpublished).

9. Cuff, David, W. J. Young, E. K. Muller, W. Zelinsky, and R. F. Abler, eds. (1989). The Atlas of Pennsylvania. Temple Univ. Press, Philadelphia.

10. PADEP (2000). Department of Environmental Protection: Pennsylvania Code, Title 25. Chapter 93, Water Quality Standards.

11. Hopey, Don (1998). "Clean up sewage excess, state tells city, 3 suburbs." December 8, 1998, Pittsburgh Post-Gazette.

12. Hopey, Don (1999,1). "$3 billion sewer plan under review." February 7, 1999, Pittsburgh Post-Gazette.

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13. Hopey, D. (1999,2). "Regions authorities face $3 billion sewage fix." April 18, 1999, Pittsburgh Post-Gazette.

14. Keller, A. (2000). “Peer Review of the Watershed Analysis Risk Management Framework (WARMF) - An Evaluation of WARMF for TMDL Applications by Independent Experts Using USEPA Guidelines.” Technical Report 1000252, Electric Power Research Institute, Palo Alto, CA.

15. Keller, A (2001). “Peer Review of the Acid Mine Drainage Module of the Watershed Analysis Risk Management Framework (WARMF), an evaluation of WARMF/AMD using EPA guidelines,” Electric Power Research Institute, Palo Alto, CA, Technical Report (in press).

16. Tchobanoglous, George and Schroeder, E. (1985). Water Quality, Addison-Wesley, California.

17. USEPA (2000). USEPA Envirofacts Warehouse of Water Discharge Permits (Permit Compliance System): http://www.epa.gov/enviro/html/pcs/pcs_overview.html.

18. USGS (1999). USGS Water Resources Historical NWIS-W Data Retrieval System: http://water.usgs.gov/.

19. PADEP (2000). Section 303(d), Proposed for Year 2000: http://www.dep.state.pa.us/dep/deputate/watermgt/wc/subjects/WQStandards/303_water00_n arr.htm.

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APPENDIX A:

DATA SOURCES

Digital elevation maps:

1. USGS Global Land Information System, http://edcwww.cr.usgs.gov/webglis/

Land use data

1. USEPA BASINS CD-ROM

Point sources data

1. USEPA Water Discharge Permits, Permit Compliance System (PCS), http://www.epa.gov/enviro/html/pcs/pcs_overview.html 2. National Pollution Discharge Elimination System (NPDES) hardcopy data, PADEP SWRO, Pittsburgh 3. Combined sewer overflow point source data: contact Systech Engineering, Inc.

Meteorology data

1. National Oceanic and Atmospheric Administration - National Climatic Data Center (NCDC), http://www.ncdc.noaa.gov/

Air quality data

1. Clean Air Status and Trends Network (CASTNET), http://www.epa.gov/ardpublc/acidrain/castnet/index.html 2. National Atmospheric Deposition Program (NADP), http://nadp.sws.uiuc.edu/default.html

Stream flow data

1. Washington and Jefferson College, http://www.chartierscreek.org 2. USEPA STORET database, http://www.epa.gov/owow/storet/index.html

A-1

Water quality data:

1. PADEP monitoring data, available from PADEP SWRO, Pittsburgh 2. Creek Connections website, http://merlin.alleg.edu/group/creekconnections/ 3. Washington and Jefferson College, http://www.chartierscreek.org 4. USEPA STORET database, http://www.epa.gov/owow/storet/index.html

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APPENDIX B:

NPDES PERMITS IN CHARTIERS CREEK WATERHSED

Permit Number Facility Municipality County PAS236102 Parker Plastics Corporation Bethel Park Borough Allegheny PA0002887 Union Electric Steel Carnegie Carnegie Borough Allegheny PA0003603 Universal Stainless & Alloy Prod/Bridgeville Collier Township Allegheny PA0045438 U S Army Support Element Collier Township Allegheny PA0097004 Davidson Dual Residence-Colonial Ridge Plan Collier Township Allegheny PA0097080 U S Army Housing Site #62 Collier Township Allegheny PA0204897 Collier Garage Collier Township Allegheny PA0205419 Dynamet-Bridgeville Facility Collier Township Allegheny PA0003166 Wheeling Acquisition Corp. Green Tree Borough Allegheny PA0003520 Elwin G. Smith Division Heidelberg Borough Allegheny PA0003590 Bowman Metal Deck Division Heidelberg Borough Allegheny PA0094528 McKees Rocks Forgings - Wheel & Axle Plant McKees Rocks Borough Allegheny PA0024597 Hanky Farms STP North Fayette Township Allegheny PA0034673 Miller Mobile Home Park STP North Fayette Township Allegheny PA0035491 Penndot Maintenance Facility North Fayette Township Allegheny PA0092177 Dalby SR STP North Fayette Township Allegheny PA0092801 Westinghouse - Productivity & Quality Center North Fayette Township Allegheny PA0092827 Oakdale Warehouse STP North Fayette Township Allegheny PA0096059 Crucible Compaction Metals North Fayette Township Allegheny PA0096652 Pennsylvania Motor Speedway North Fayette Township Allegheny PA0096881 Oakridge Heights Mobile Home Park STP #1 North Fayette Township Allegheny PA0096890 Oakridge Heights Mobile Home Park #2 North Fayette Township Allegheny PA0097471 Wagner MHP North Fayette Township Allegheny PA0097667 Pittsburgh International Industrial Park North Fayette Township Allegheny PA0097675 Franz SR STP North Fayette Township Allegheny PA0097721 Mays Manor Inc. North Fayette Township Allegheny PA0216135 Martelli SR STP North Fayette Township Allegheny PA0047228 Pennsbury Village Borough STP Pennsbury Village Borough Allegheny PA0000647 Crucible Research Center Robinson Township Allegheny PA0036293 Campbells Run STP Robinson Township Allegheny PA0004260 O Hommel Company Scott Township Allegheny PA0024619 Oakdale Municipal Authority South Fayette Township Allegheny PA0094439 Dobies SR STP South Fayette Township Allegheny PA0097098 U S Army Housing Site #63 South Fayette Township Allegheny

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PA0097900 Mayview State Hospital South Fayette Township Allegheny PA0098876 YMCA Pittsburgh South Hills Upper St. Clair Township Allegheny PA0216232 Atlantic Service Station #0364-0703 Upper St. Clair Township Allegheny PA0001902 Jessop Steel Washington Mill Canton Township Washington Lukens Steel-Washington Plant (aka Wash PA0002721 Steel) Canton Township Washington PA0040312 Molycorp Inc., Washington Plant Canton Township Washington PAS236103 Drakenfeld Colors Canton Township Washington PA0001937 Cooper Power Systems Cecil Township Washington PA0025941 Canonsburg-Houston STP Cecil Township Washington PA0030660 Canon-McMillen Junior High School Cecil Township Washington PA0036331 Fleeher STP Cecil Township Washington PA0043435 Monaco Manor STP Cecil Township Washington PA0090034 Fellowship Homes Cecil Township Washington PA0091138 Teodori Sewage Treatment Plant Cecil Township Washington PA0095567 Cross SR STP Cecil Township Washington PA0095591 Industrial Elevator Maintenance Co. Cecil Township Washington PA0095681 Casciola Homes Cecil Township Washington PA0097161 Combustion Engineering - Muse Plant Cecil Township Washington PA0204960 Briselli, Inc. Cecil Township Washington PA0216178 Cherrybrook Sewage Treatment Plant Cecil Township Washington PAS206102 Miller Centrifugal Casting Co. Cecil Township Washington PA0002739 Allegheny Ludlum-Houston Plant Chartiers Township Washington PA0098256 Willner SR STP Chartiers Township Washington PA0203866 Conwell SR STP Chartiers Township Washington PA0203891 Western Area Vocational-Technical School STP Chartiers Township Washington PA0093343 Hometown Delight Restaurant McDonald Borough Washington PA0093262 Industrial Leasing System/BethEnergy Mines North Bethlehem Township Washington PA0000388 Washington Plant North Franklin Township Washington PA0217352 Club 40 Restaurant STP North Franklin Township Washington PA0002691 West Design Chemical North Strabane Township Washington PA0005673 Union Camp Corp. North Strabane Township Washington PA0030651 Wylandville Elementary North Strabane Township Washington PA0034819 Ametek Inc. North Strabane Township Washington PA0042587 M L M Enterprise North Strabane Township Washington PA0090018 Willolake STP North Strabane Township Washington PA0090930 Middle States Steel Construction Inc. North Strabane Township Washington PA0091413 Eighty-four Industrial Park STP North Strabane Township Washington PA0096954 Meadowlands Park Sewage Treatment Plant North Strabane Township Washington PA0203955 Eighty-four Lumber Company North Strabane Township Washington PAS206107 The Perryman Company North Strabane Township Washington PAS606102 Route 19 Auto Salvage North Strabane Township Washington PA0028703 Donaldsons Crossroads WPCP Peters Township Washington PA0028711 Brush Run STP Peters Township Washington

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PA0204111 DeDonato SR STP Peters Township Washington PA0203661 Goldschmidt Industrial Chemical Corporation Robinson Township Washington PA0204234 Redden Builder Supply STP Robinson Township Washington PA0042579 Smith Machine, Inc. Somerset Township Washington PA0094960 Barnes Apartments STP Somerset Township Washington PA0096679 Marchezak Portal STP Somerset Township Washington PA0098663 Woodhouse STP Somerset Township Washington PA0033294 South Franklin Farms South Franklin Township Washington PA0042820 Ridgecrest MHP STP South Franklin Township Washington PA0093076 Brookhaven Estates Mobile Home Park South Franklin Township Washington PA0094102 Airways Mobile Home Park South Franklin Township Washington PA0095834 Tree Haven Mobile Home Park South Franklin Township Washington PA0096121 Joe Walker Elementary South Franklin Township Washington PA0206016 Clearview Mobile Home Park STP South Franklin Township Washington PA0024775 Green Crescent Acres Plant South Strabane Township Washington PA0024783 Windsor Highlands South Strabane Township Washington PA0026212 Washington-East Washington STP South Strabane Township Washington PA0096831 Cooper Truckstop & Restaurant STP South Strabane Township Washington PA0097691 KOA Washington South Strabane Township Washington Washington Penn Plastics-Performance PA0203963 Products South Strabane Township Washington PA0204544 Martin Farms, Inc. South Strabane Township Washington PA0206041 Washington Penn Plastics-Arden Division South Strabane Township Washington PA0092878 Traders Path Mobile Home Park STP Lower Burrell City Westmoreland

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APPENDIX C:

TABLE OF DEEP AND SURFACE MINES

Surface mine characteristics Deep mine characteristics Approx Thick. Approx Thick. Thick. Catchmnt. mine Land Mine mine mine Mine mine mine Warmf area area Use area overbrdn area area overbrdn overbrdn Sub- catchmt (m2) (km2) (%) (m2) (cm) (%) (m2) (ft) (cm) No. watershed No. (WARMF) (input) (calc'd) (calc'd) (approx.) (input) (calc'd) (approx.) 1 North 169 4.7E+06 0.51 10.8 510,000 500 80 3,792,736 50 1524 2 Branch 168 3.2E+06 0.25 7.9 250,000 500 95 3,005,078 50 1524 3 of 158 5.8E+06 1.14 19.6 1,140,000 500 90 5,232,672 50 1524 4 Robinson 167 9.5E+05 0.21 22.1 210,000 500 50 474,931 50 1524 5 Run 153 2.1E+06 0.66 31.6 660,000 500 60 1,251,462 50 1524 6 152 2.5E+06 0.46 18.1 460,000 500 75 1,906,838 50 1524 7 149 1.4E+06 0.41 29.0 410,000 500 70 989,856 50 1524 8 140 4.0E+06 0.66 16.4 660,000 500 50 2,007,520 50 1524 9 139 6.2E+05 0.00 0.0 0 500 25 155,706 50 1524 10 136 2.6E+06 0.00 0.0 0 500 60 1,561,032 50 1524 11 135 9.5E+05 0.15 15.8 150,000 500 10 94,741 50 1524 12 132 3.3E+06 0.38 11.6 380,000 500 75 2,452,388 50 1524 13 129 1.2E+06 0.04 3.3 40,000 500 30 362,061 50 1524 14 Robinson 244 3.0E+06 0.26 8.6 260,000 500 60 1,823,358 50 1524 15 Run 242 8.2E+05 0.00 0.0 0 500 35 285,445 50 1524 16 237 3.2E+06 1.18 36.4 1,180,000 500 60 1,945,092 50 1524 17 234 1.1E+06 0.36 32.9 360,000 500 10 109,272 50 1524 18 233 1.3E+06 0.00 0.0 0 500 95 1,221,501 50 1524 19 232 4.0E+05 0.02 5.0 20,000 500 60 240,933 50 1524 20 229 1.3E+06 0.00 0.0 0 500 100 1,348,960 50 1524 21 227 5.6E+05 0.00 0.0 0 500 90 505,593 50 1524 22 222 4.0E+06 1.74 43.5 1,740,000 500 40 1,601,680 50 1524 23 219 3.9E+06 0.88 22.3 880,000 500 40 1,578,276 50 1524 24 214 1.8E+06 0.09 5.0 90,000 500 80 1,448,712 50 1524 25 209 2.7E+06 0.21 7.8 210,000 500 90 2,435,292 50 1524 26 202 4.3E+06 0.52 12.0 520,000 500 60 2,592,240 50 1524 27 195 4.7E+06 0.72 15.4 720,000 500 80 3,743,216 50 1524 28 190 2.3E+06 0.31 13.3 310,000 500 45 1,045,904 50 1524 29 189 2.1E+06 0.18 8.5 180,000 500 60 1,271,478 50 1524 30 186 1.2E+06 0.07 5.8 70,000 500 30 364,371 50 1524 31 185 1.6E+06 0.27 17.0 270,000 500 50 791,930 50 1524 32 184 2.6E+04 0.00 0.0 0 500 0 0 50 1524 33 178 7.2E+03 0.00 0.0 0 500 0 0 50 1524 34 179 1.8E+06 0.07 3.9 70,000 500 40 716,092 50 1524 35 122 3.8E+06 0.61 16.0 610,000 500 40 1,520,592 50 1524 36 109 6.6E+06 1.39 20.9 1,390,000 500 50 3,321,040 50 1524 37 108 1.5E+05 0.02 13.4 20,000 500 0 0 50 1524 38 105 2.3E+06 0.52 22.3 520,000 500 40 933,960 50 1524 39 94 6.9E+06 0.80 11.6 800,000 500 40 2,757,300 50 1524 40 91 3.2E+06 0.71 22.4 710,000 500 40 1,269,664 50 1524 41 90 1.6E+06 0.09 5.6 90,000 500 35 559,006 50 1524

C-1

42 89 1.4E+06 0.10 7.4 100,000 500 85 1,152,235 50 1524 43 88 2.8E+05 0.00 0.0 0 500 40 110,152 50 1524 44 Carnegie 81 3.7E+06 0.14 3.7 140,000 500 85 3,173,960 50 1524 45 Campbells 72 7.2E+06 0.57 7.9 570,000 500 70 5,027,995 50 1524 46 Run 65 4.5E+06 0.51 11.3 510,000 500 30 1,348,146 50 1524 47 60 2.6E+06 0.08 3.0 80,000 500 40 1,056,540 50 1524 Bel. 48 Carnegie 51 3.8E+06 0.00 0.0 0 500 75 2,849,835 50 1524 49 Whiskey 46 4.1E+06 0.00 0.0 0 500 75 3,060,120 50 1524 50 Run 44 6.3E+05 0.00 0.0 0 500 20 125,293 50 1524 51 Below 37 6.4E+06 0.00 0.0 0 500 40 2,572,764 50 1524 52 Whisky Rn 32 2.7E+06 0.12 4.5 120,000 500 40 1,075,172 50 1524 Mth. Chart 53 Cr 1 1.6E+07 0.14 0.9 140,000 500 5 799,485 50 1524 54 Millers 436 7.5E+06 0.05 0.7 50,000 500 40 2,998,368 mine bel. wat. table 55 Run 433 2.7E+06 0.00 0.0 0 500 100 2,667,860 mine bel. wat. table 56 432 6.8E+05 0.00 0.0 0 500 40 272,807 mine bel. wat. table 57 431 1.3E+06 0.00 0.0 0 500 40 524,612 mine bel. wat. table 58 421 4.1E+06 0.08 1.9 80,000 500 90 3,722,976 mine bel. wat. table 59 430 4.9E+05 0.00 0.0 0 500 80 395,086 mine bel. wat. table 60 420 2.9E+05 0.00 0.0 0 500 80 235,886 mine bel. wat. table 61 413 5.0E+06 0.01 0.2 10,000 500 75 3,740,123 mine bel. wat. table 62 411 4.8E+05 0.00 0.0 0 500 10 48,488 mine bel. wat. table 63 406 3.6E+06 0.00 0.0 0 500 5 180,548 mine bel. wat. table 64 404 1.7E+06 0.04 2.3 40,000 500 95 1,625,982 mine bel. wat. table 65 399 4.0E+06 0.00 0.0 0 500 5 201,159 mine bel. wat. table 66 397 1.7E+06 0.00 0.0 0 500 80 1,397,360 mine bel. wat. table 67 398 9.2E+04 0.00 0.0 0 500 100 91,624 mine bel. wat. table 68 390 2.3E+06 0.00 0.0 0 500 60 1,363,440 mine bel. wat. table 69 379 9.3E+06 0.00 0.0 0 500 95 8,864,716 mine bel. wat. table 70 368 5.7E+06 0.00 0.0 0 500 95 5,440,109 mine bel. wat. table 71 Fishing 361 5.2E+06 0.22 4.2 220,000 500 90 4,705,812 50 1524 72 Run 360 3.6E+05 0.05 14.0 50,000 500 20 71,487 50 1524 73 (part of 355 5.5E+06 0.24 4.4 240,000 500 90 4,957,623 50 1524 74 Millers Rn) 342 1.0E+07 0.07 0.7 70,000 500 80 8,170,720 mine bel. wat. table D/s Millers 75 Rn 341 7.1E+05 0.00 0.0 0 500 30 213,039 50 1524 76 Thoms 338 3.7E+06 0.06 1.6 60,000 500 90 3,324,690 50 1524 77 Run 332 3.5E+06 0.00 0.0 0 500 95 3,327,109 50 1524 78 331 1.6E+06 0.00 0.0 0 500 95 1,522,290 50 1524 79 330 3.2E+05 0.00 0.0 0 500 80 258,987 50 1524 D/s Thoms 80 Rn 325 2.6E+06 0.12 4.6 120,000 500 40 1,033,068 50 1524 81 McLaughlin/ 316 5.1E+06 0.10 1.9 100,000 500 95 4,880,122 mine bel. wat. table 82 Graesers 313 2.6E+06 0.00 0.0 0 500 100 2,579,620 mine bel. wat. table 83 Run 312 1.2E+06 0.00 0.0 0 500 100 1,168,930 mine bel. wat. table 84 311 1.8E+05 0.00 0.0 0 500 100 182,232 mine bel. wat. table 85 308 2.7E+06 0.00 0.0 0 500 100 2,670,480 mine bel. wat. table 86 307 1.2E+06 0.00 0.0 0 500 100 1,211,610 mine bel. wat. table 87 304 1.0E+06 0.00 0.0 0 500 100 1,012,360 mine bel. wat. table 88 303 1.4E+06 0.00 0.0 0 500 100 1,359,630 mine bel. wat. table 89 298 3.8E+06 0.00 0.0 0 500 85 3,196,850 50 1524 90 D/s McL/Grs 297 6.6E+05 0.00 0.0 0 500 50 331,990 50 1524 91 Painters 290 2.7E+06 0.00 0.0 0 500 100 2,736,280 mine bel. wat. table 92 Run 289 8.2E+05 0.00 0.0 0 500 100 823,433 mine bel. wat. table 93 272 7.8E+06 0.00 0.0 0 500 95 7,381,282 50 1524 94 D/s Paint Rn 265 4.2E+06 0.00 0.0 0 500 65 2,734,505 50 1524

C-2

95 Scrubgrass 262 2.1E+06 0.00 0.0 0 500 95 2,013,981 50 1524 96 Run 261 1.1E+06 0.00 0.0 0 500 95 1,022,390 50 1524 97 260 2.7E+05 0.00 0.0 0 500 95 256,061 50 1524 98 D/s 255 2.0E+06 0.00 0.0 0 500 50 979,120 50 1524 99 Scrubgrass 250 3.9E+06 0.00 0.0 0 500 95 3,702,226 50 1524 100 Run 249 5.2E+05 0.00 0.0 0 500 50 260,308 50 1524 101 Coal 458 4.7E+06 0.00 0.0 0 500 100 4,733,220 mine bel. wat. table 102 Run 456 4.5E+05 0.00 0.0 0 500 100 453,125 mine bel. wat. table 103 455 1.1E+06 0.00 0.0 0 500 100 1,107,450 mine bel. wat. table 104 452 3.1E+06 0.00 0.0 0 500 100 3,099,560 mine bel. wat. table 105 D/s Coal Rn 451 7.9E+05 0.00 0.0 0 500 40 316,942 50 1524 106 D/s 461 1.2E+07 0.00 0.0 0 500 75 9,092,625 mine bel. wat. table 107 Brush 480 4.2E+06 0.06 1.4 60,000 500 65 2,728,115 mine bel. wat. table 108 Run 483 1.2E+06 0.12 9.8 120,000 500 100 1,220,080 mine bel. wat. table 109 Brush 494 1.6E+06 0.00 0.0 0 500 100 1,638,310 mine bel. wat. table 110 Run 495 2.8E+06 0.04 1.4 40,000 500 100 2,790,650 mine bel. wat. table 111 491 1.3E+06 0.00 0.0 0 500 100 1,318,560 mine bel. wat. table 112 489 1.2E+06 0.00 0.0 0 500 100 1,190,020 mine bel. wat. table 113 524 2.4E+06 0.05 2.1 50,000 500 100 2,382,740 mine bel. wat. table Rest Brush 114 Rn (no surf mine, 100% deep mine below water table) - (varies) mine bel. wat. table 115 U/s 527 1.8E+06 0.04 2.3 40,000 500 100 1,754,830 mine bel. wat. table 116 Brush 531 7.5E+05 0.00 0.0 0 500 100 751,285 mine bel. wat. table 117 Run 537 1.7E+06 0.00 0.0 0 500 100 1,748,480 mine bel. wat. table 118 McPhrsn 550 3.1E+06 0.08 2.6 80,000 500 100 3,061,030 mine bel. wat. table 119 Run 547 1.4E+06 0.00 0.0 0 500 100 1,400,450 mine bel. wat. table 120 540 2.7E+06 0.07 2.6 70,000 500 100 2,657,780 mine bel. wat. table U/s McPhsn 121 Rn 539 2.1E+06 0.00 0.0 0 500 100 2,086,700 mine bel. wat. table 122 Betw 763 1.2E+06 0.00 0.0 0 500 100 1,177,990 mine bel. wat. table 123 Brush Run 764 1.9E+06 0.00 0.0 0 500 50 968,535 mine bel. wat. table 124 & 765 8.1E+05 0.00 0.0 0 500 20 162,841 mine bel. wat. table 125 Little 768 6.3E+06 0.00 0.0 0 500 80 5,004,960 mine bel. wat. table 126 Charteris 775 1.8E+06 0.00 0.0 0 500 10 175,949 mine bel. wat. table 127 Creek 780 1.1E+06 0.00 0.0 0 500 75 848,115 mine bel. wat. table 128 781 1.1E+06 0.00 0.0 0 500 10 107,476 50 1524 129 Brush 803 2.8E+06 0.00 0.0 0 500 90 2,536,425 mine bel. wat. table 130 Run 808 3.3E+06 0.00 0.0 0 500 100 3,337,090 mine bel. wat. table 131 near 800 1.8E+06 0.00 0.0 0 500 60 1,106,298 mine bel. wat. table 132 Canonsburg 797 2.4E+06 0.36 14.9 360,000 500 75 1,816,395 mine bel. wat. table 133 794 2.8E+06 0.00 0.0 0 500 85 2,360,102 mine bel. wat. table 134 784 2.2E+06 0.00 0.0 0 500 60 1,307,958 mine bel. wat. table 135 811 5.9E+06 0.00 0.0 0 500 60 3,558,564 50 1524 136 Plum 827 8.7E+06 0.47 5.4 470,000 500 75 6,511,020 50 1524 137 Run 826 1.1E+06 0.00 0.0 0 500 85 894,192 50 1524 138 (Chart Rn) 825 7.3E+05 0.05 6.8 50,000 500 20 146,446 50 1524 139 Chartiers 892 2.1E+07 0.39 1.9 390,000 500 40 8,229,200 50 1524 140 Run 885 4.1E+06 0.00 0.0 0 500 25 1,036,618 mine bel. wat. table 141 871 2.8E+06 0.06 2.1 60,000 500 20 565,208 50 1524 142 868 9.0E+05 0.05 5.6 50,000 500 85 765,347 50 1524 143 867 8.2E+05 0.11 13.4 110,000 500 85 697,183 50 1524 144 862 4.5E+06 0.26 5.7 260,000 500 65 2,952,196 50 1524 145 859 1.3E+06 0.19 14.1 190,000 500 80 1,076,392 50 1524 146 858 3.8E+05 0.00 0.0 0 500 30 112,617 50 1524 147 857 6.6E+05 0.06 9.2 60,000 500 85 557,113 50 1524 148 852 2.3E+06 0.00 0.0 0 500 85 1,958,315 50 1524

C-3

149 849 3.6E+06 0.06 1.7 60,000 500 90 3,234,303 50 1524 150 846 1.4E+06 0.07 4.9 70,000 500 85 1,207,366 50 1524 151 845 8.4E+05 0.00 0.0 0 500 100 838,337 mine bel. wat. table 152 840 2.1E+06 0.16 7.6 160,000 500 60 1,269,036 50 1524 153 D/s Chart Rn 822 2.3E+06 0.16 7.0 160,000 500 90 2,063,601 50 1524 D/s Allsn 154 Hllw 923 5.5E+06 0.45 8.2 450,000 500 60 3,283,638 50 1524 155 Allison 952 1.1E+06 0.00 0.0 0 500 100 1,147,510 mine bel. wat. table 156 Hollow 951 9.7E+05 0.00 0.0 0 500 100 968,406 mine bel. wat. table 157 950 1.8E+06 0.00 0.0 0 500 100 1,822,070 mine bel. wat. table 158 946 1.9E+06 0.12 6.2 120,000 500 80 1,551,552 50 1524 D/s Allsn 159 Hllw 932 7.3E+06 0.00 0.0 0 500 90 6,604,497 50 1524 160 U/s 945 1.2E+06 0.14 11.2 140,000 500 50 624,265 50 1524 161 Allison 956 6.7E+06 0.00 0.0 0 500 75 5,020,365 mine bel. wat. table 162 Hollow 969 6.6E+06 0.22 3.3 220,000 500 90 5,938,020 50 1524 163 980 4.6E+06 0.06 1.3 60,000 500 65 2,965,736 50 1524 164 987 2.6E+05 0.00 0.0 0 500 10 26,420 50 1524 165 988 7.0E+06 0.08 1.1 80,000 500 70 4,913,713 mine bel. wat. table 166 997 2.6E+06 0.00 0.0 0 500 30 793,956 mine bel. wat. table

C-4 Appendix D: Year 2000 303(d) List OF STREAMS AND RIVERS IN WATERSHED 20F, CHARTIERS CREEK WATERSHED

Segment ID Mile Data Source Source of Impairment Cause of Impairment Priority Listed by 2002? TMDL STATE WATER PLAN (SWP) 20F Allison Hollow - Local Name (Stream Code: 37086, SWP: 20F) 971029-1000-ALF 0.37 Unassessed Project Habitat Modification Siltation Medium 1996 Yes Habitat Modification Turbidity Medium 1996 Yes 971029-1100-ALF 0.68 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes Agriculture Turbidity Medium 1998 Yes Habitat Modification Siltation Medium 1998 Yes Habitat Modification Turbidity Medium 1998 Yes 971205-1000-ALF 1.76 Unassessed Project Acid Mine Drainage Metals Medium 1996 Yes Acid Mine Drainage Suspended Solids Medium 1996 Yes Agriculture Nutrients Medium 1996 Yes Combined Sewer Overflow Organic Enrichment/Low D.O. Medium 1996 Yes Habitat Modification Nutrients Medium 1996 Yes Habitat Modification Siltation Medium 1996 Yes Urban Runoff/Storm Nutrients Medium 1996 Yes

Unassessed Project Urban Runoff/Storm Siltation Medium 1996 Yes

UnassessedAllison Hollow, Project Unt (Stream Code: 37087, SWP: 20F) Unassessed971029-1000-ALF Project 0.79 Unassessed Project Habitat Modification Siltation Medium 1996 Yes Unassessed Project Habitat Modification Turbidity Medium 1996 Yes UnassessedAllison Hollow, Project Unt (Stream Code: 37088, SWP: 20F) 971029-1000-ALF 0.29 Unassessed Project Habitat Modification Siltation Medium 1996 Yes Unassessed Project Habitat Modification Turbidity Medium 1996 Yes UnassessedAllison Hollow, Project Unt (Stream Code: 37089, SWP: 20F) Unassessed971029-1000-ALF Project 1.16 Unassessed Project Habitat Modification Siltation Medium 1996 Yes Unassessed Project Habitat Modification Turbidity Medium 1996 Yes UnassessedArnold Hollow Project - Local Name (Stream Code: 37077, SWP: 20F) Unassessed971205-1000-ALF Project 0.82 Unassessed Project Acid Mine Drainage Metals Medium 1996 Yes Acid Mine Drainage Suspended Solids Medium 1996 Yes Unassessed Project Agriculture Nutrients Medium 1996 Yes Combined Sewer Overflow Organic Enrichment/Low D.O. Medium 1996 Yes Habitat Modification Nutrients Medium 1996 Yes Habitat Modification Siltation Medium 1996 Yes Unassessed Project Urban Runoff/Storm Nutrients Medium 1996 Yes

Unassessed Project Urban Runoff/Storm Siltation Medium 1996 Yes Sewers UnassessedBrush Run (StreamProject Code: 36873, SWP: 20F) 971006-1315-ALF 1.65 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Sewers Habitat Modification Siltation Medium 1998 Yes Unassessed Project Habitat Modification Turbidity Medium 1998 Yes Unassessed971007-1300-ALF Project 0.36 Unassessed Project Construction Siltation Medium 1998 Yes Unassessed Project Construction Turbidity Medium 1998 Yes Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Unassessed Project Habitat Modification Siltation Medium 1998 Yes 971009-1030-ALF 0.66 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Unassessed Project Habitat Modification Other Habitat Alterations Low 1998 Yes

Unassessed Project

Unassessed Project Unassessed Project

Unassessed Project Unassessed Project Sewers Unassessed Project

Unassessed Project Sewers

D-1 Appendix D: Year 2000 303(d) List OF STREAMS AND RIVERS IN WATERSHED 20F, CHARTIERS CREEK WATERSHED

Segment ID Mile Data Source Source of Impairment Cause of Impairment Priority Listed by 2002? TMDL Habitat Modification Turbidity Medium 1998 Yes 971009-1200-ALF 0.59 Unassessed Project Habitat Modification Organic Enrichment/Low D.O. Medium 1998 Yes Habitat Modification Other Habitat Alterations Low 1998 Yes 971010-1145-ALF 0.4 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Habitat Modification Other Habitat Alterations Low 1998 Yes Habitat Modification Turbidity Medium 1998 Yes 971010-1300-ALF 0.89 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Habitat Modification Siltation Medium 1998 Yes Habitat Modification Turbidity Medium 1998 Yes Brush Run (Stream Code: 37036, SWP: 20F) 970903-1200-ALF 1.44 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Organic Enrichment/Low D.O. Medium 1998 Yes Agriculture Siltation Medium 1998 Yes 971022-1345-ALF 1.31 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Unassessed Project Habitat Modification Other Habitat Alterations Low 1998 Yes 971023-1400-ALF 2.15 Unassessed Project Agriculture Nutrients Medium 1998 Yes Unassessed Project Agriculture Siltation Medium 1998 Yes Habitat Modification Other Habitat Alterations Low 1998 Yes Unassessed Project Habitat Modification Siltation Medium 1998 Yes Unassessed Project Habitat Modification Turbidity Medium 1998 Yes On site Wastewater Organic Enrichment/Low D.O. Medium 1998 Yes UnassessedBrush Run, ProjectUnt (Stream Code: 36874, SWP: 20F) Unassessed971006-1440-ALF Project 1.19 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Habitat Modification Turbidity Medium 1998 Yes 971007-1000-ALF 0.37 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Unassessed Project Habitat Modification Siltation Medium 1998 Yes Unassessed971007-1120-ALF Project 1.52 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Habitat Modification Siltation Medium 1998 Yes UnassessedBrush Run, ProjectUnt (Stream Code: 36875, SWP: 20F) 971007-1000-ALF 0.62 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Unassessed Project Habitat Modification Siltation Medium 1998 Yes UnassessedBrush Run, ProjectUnt (Stream Code: 36876, SWP: 20F) Unassessed971007-1000-ALF Project 0.3 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Unassessed Project Habitat Modification Siltation Medium 1998 Yes UnassessedBrush Run, ProjectUnt (Stream Code: 36877, SWP: 20F) 971007-1000-ALF 0.54 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Habitat Modification Siltation Medium 1998 Yes UnassessedBrush Run, ProjectUnt (Stream Code: 36878, SWP: 20F) 971007-1000-ALF 1.41 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Unassessed Project Habitat Modification Siltation Medium 1998 Yes Brush Run, Unt (Stream Code: 36879, SWP: 20F) Unassessed971007-1120-ALF Project 0.31 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Habitat Modification Siltation Medium 1998 Yes Brush Run, Unt (Stream Code: 36921, SWP: 20F) Unassessed971007-1120-ALF Project 0.18 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Habitat Modification Siltation Medium 1998 Yes Brush Run, Unt (Stream Code: 36922, SWP: 20F) Unassessed971007-1430-ALF Project 1.06 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Habitat Modification Siltation Medium 1998 Yes Habitat Modification Turbidity Medium 1998 Yes UnassessedBrush Run, ProjectUnt (Stream Code: 36923, SWP: 20F)

Unassessed Project

Unassessed Project

Unassessed Project

Unassessed Project Unassessed Project

D-2 Appendix D: Year 2000 303(d) List OF STREAMS AND RIVERS IN WATERSHED 20F, CHARTIERS CREEK WATERSHED

Segment ID Mile Data Source Source of Impairment Cause of Impairment Priority Listed by 2002? TMDL 971007-1430-ALF 0.5 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Habitat Modification Siltation Medium 1998 Yes Habitat Modification Turbidity Medium 1998 Yes Brush Run, Unt (Stream Code: 36924, SWP: 20F) 971009-1200-ALF 0.7 Unassessed Project Habitat Modification Organic Enrichment/Low D.O. Medium 1998 Yes Habitat Modification Other Habitat Alterations Low 1998 Yes Brush Run, Unt (Stream Code: 36925, SWP: 20F) 971009-0930-ALF 0.77 Unassessed Project Construction Siltation Medium 1998 Yes Construction Turbidity Medium 1998 Yes Habitat Modification Nutrients Medium 1998 Yes Habitat Modification Other Habitat Alterations Low 1998 Yes 971009-1200-ALF 0.48 Unassessed Project Habitat Modification Organic Enrichment/Low D.O. Medium 1998 Yes Habitat Modification Other Habitat Alterations Low 1998 Yes Brush Run, Unt (Stream Code: 36926, SWP: 20F) 971009-0930-ALF 0.66 Unassessed Project Construction Siltation Medium 1998 Yes Unassessed Project Construction Turbidity Medium 1998 Yes Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Habitat Modification Other Habitat Alterations Low 1998 Yes Brush Run, Unt (Stream Code: 36927, SWP: 20F) Unassessed971007-1300-ALF Project 0.39 Unassessed Project Construction Siltation Medium 1998 Yes Construction Turbidity Medium 1998 Yes Habitat Modification Nutrients Medium 1998 Yes Unassessed Project Habitat Modification Siltation Medium 1998 Yes UnassessedBrush Run, ProjectUnt (Stream Code: 36928, SWP: 20F) Unassessed971007-1300-ALF Project 0.64 Unassessed Project Construction Siltation Medium 1998 Yes Construction Turbidity Medium 1998 Yes Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Habitat Modification Siltation Medium 1998 Yes Brush Run, Unt (Stream Code: 36930, SWP: 20F) Unassessed971007-1300-ALF Project 0.77 Unassessed Project Construction Siltation Medium 1998 Yes Unassessed Project Construction Turbidity Medium 1998 Yes Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Habitat Modification Siltation Medium 1998 Yes Brush Run, Unt (Stream Code: 36931, SWP: 20F) Unassessed971007-1300-ALF Project 1.66 Unassessed Project Construction Siltation Medium 1998 Yes Unassessed Project Construction Turbidity Medium 1998 Yes Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Habitat Modification Siltation Medium 1998 Yes Brush Run, Unt (Stream Code: 36932, SWP: 20F) Unassessed971009-1030-ALF Project 0.43 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Unassessed Project Habitat Modification Other Habitat Alterations Low 1998 Yes Unassessed Project Habitat Modification Turbidity Medium 1998 Yes Brush Run, Unt (Stream Code: 36933, SWP: 20F) 971010-1430-ALF 1.92 Unassessed Project Construction Flow Alterations Low 1998 Yes Unassessed Project Construction Other Habitat Alterations Low 1998 Yes Unassessed Project Construction Siltation Medium 1998 Yes Unassessed Project Construction Suspended Solids Medium 1998 Yes Construction Turbidity Medium 1998 Yes Brush Run, Unt (Stream Code: 36934, SWP: 20F) Unassessed971010-1430-ALF Project 0.09 Unassessed Project Construction Flow Alterations Low 1998 Yes Unassessed Project Construction Other Habitat Alterations Low 1998 Yes Unassessed Project

Unassessed Project Unassessed Project

Unassessed Project Unassessed Project Unassessed Project Unassessed Project

Unassessed Project

D-3 Appendix D: Year 2000 303(d) List OF STREAMS AND RIVERS IN WATERSHED 20F, CHARTIERS CREEK WATERSHED

Segment ID Mile Data Source Source of Impairment Cause of Impairment Priority Listed by 2002? TMDL Construction Siltation Medium 1998 Yes Construction Suspended Solids Medium 1998 Yes Construction Turbidity Medium 1998 Yes Brush Run, Unt (Stream Code: 36935, SWP: 20F) 971010-1430-ALF 0.36 Unassessed Project Construction Flow Alterations Low 1998 Yes Construction Other Habitat Alterations Low 1998 Yes Construction Siltation Medium 1998 Yes Construction Suspended Solids Medium 1998 Yes Construction Turbidity Medium 1998 Yes Brush Run, Unt (Stream Code: 36936, SWP: 20F) 971010-1430-ALF 0.28 Unassessed Project Construction Flow Alterations Low 1998 Yes Construction Other Habitat Alterations Low 1998 Yes Construction Siltation Medium 1998 Yes Construction Suspended Solids Medium 1998 Yes Unassessed Project Construction Turbidity Medium 1998 Yes UnassessedBrush Run, ProjectUnt (Stream Code: 36937, SWP: 20F) Unassessed971010-1145-ALF Project 1.18 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Habitat Modification Other Habitat Alterations Low 1998 Yes Habitat Modification Turbidity Medium 1998 Yes UnassessedBrush Run, ProjectUnt (Stream Code: 36938, SWP: 20F) Unassessed971010-1300-ALF Project 0.65 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Unassessed Project Habitat Modification Siltation Medium 1998 Yes Unassessed Project Habitat Modification Turbidity Medium 1998 Yes Brush Run, Unt (Stream Code: 37037, SWP: 20F) 970903-1200-ALF 1.38 Unassessed Project Agriculture Nutrients Medium 1998 Yes Unassessed Project Agriculture Organic Enrichment/Low D.O. Medium 1998 Yes Unassessed Project Agriculture Siltation Medium 1998 Yes UnassessedBrush Run, ProjectUnt (Stream Code: 37038, SWP: 20F) Unassessed970903-1200-ALF Project 0.51 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Organic Enrichment/Low D.O. Medium 1998 Yes Agriculture Siltation Medium 1998 Yes UnassessedBrush Run, ProjectUnt (Stream Code: 37039, SWP: 20F) Unassessed970808-1030-ALF Project 1.15 Unassessed Project Acid Mine Drainage Salinity/TDS/Chlorides Medium 1998 Yes Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes Unassessed Project On site Wastewater Nutrients Medium 1998 Yes Unassessed Project Urban Runoff/Storm Nutrients Medium 1998 Yes

Unassessed Project Unassessed Project Urban Runoff/Storm Siltation Medium 1998 Yes Brush Run, Unt (Stream Code: 37040, SWP: 20F) Unassessed970808-1220-ALF Project 1.6 Unassessed Project Crop Related Agric Nutrients Medium 1998 Yes Unassessed Project Grazing Related Agric Siltation Medium 1998 Yes Campbells Run (Stream Code: 36786, SWP: 20F) 971126-0845-ALF 3.77 Unassessed Project Acid Mine Drainage Metals Medium 1996 Yes Unassessed Project Acid Mine Drainage Suspended Solids Medium 1996 Yes Unassessed Project On site Wastewater Nutrients Medium 1996 Yes Unassessed Project Urban Runoff/Storm Nutrients Medium 1996 Yes Unassessed Project

Unassessed Project

Unassessed Project

Unassessed Project Unassessed Project Sewers Unassessed Project Sewers

D-4 Appendix D: Year 2000 303(d) List OF STREAMS AND RIVERS IN WATERSHED 20F, CHARTIERS CREEK WATERSHED

Segment ID Mile Data Source Source of Impairment Cause of Impairment Priority Listed by 2002? TMDL 971204-1045-ALF 1.51 Unassessed Project Acid Mine Drainage Metals Medium 1996 Yes Acid Mine Drainage Salinity/TDS/Chlorides Medium 1996 Yes Acid Mine Drainage Siltation Medium 1996 Yes Acid Mine Drainage Suspended Solids Medium 1996 Yes Campbells Run, Unt (Stream Code: 36787, SWP: 20F) 971126-0940-ALF 2.53 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Acid Mine Drainage Salinity/TDS/Chlorides Medium 1998 Yes Acid Mine Drainage Suspended Solids Medium 1998 Yes

Urban Runoff/Storm Nutrients Medium 1998 Yes

Campbells Run, Unt (Stream Code: 36788, SWP: 20F) 971126-0940-ALF 0.47 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Acid Mine Drainage Salinity/TDS/Chlorides Medium 1998 Yes Acid Mine Drainage Suspended Solids Medium 1998 Yes Unassessed Project Unassessed Project Urban Runoff/Storm Nutrients Medium 1998 Yes Unassessed Project Campbells Run, Unt (Stream Code: 36789, SWP: 20F) 971126-0940-ALF 0.6 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Unassessed Project Acid Mine Drainage Salinity/TDS/Chlorides Medium 1998 Yes Unassessed Project Acid Mine Drainage Suspended Solids Medium 1998 Yes

Unassessed Project Urban Runoff/Storm Nutrients Medium 1998 Yes Sewers Campbells Run, Unt (Stream Code: 36790, SWP: 20F) 971126-0940-ALF 0.47 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Unassessed Project Acid Mine Drainage Salinity/TDS/Chlorides Medium 1998 Yes Unassessed Project Acid Mine Drainage Suspended Solids Medium 1998 Yes

Unassessed Project Urban Runoff/Storm Nutrients Medium 1998 Yes Campbells Run, Unt (Stream Code: 36791, SWP: 20F) 971126-0845-ALF 0.62 Unassessed Project Acid Mine Drainage Metals Medium 1996 Yes Unassessed Project Acid Mine Drainage Suspended Solids Medium 1996 Yes Sewers Unassessed Project On site Wastewater Nutrients Medium 1996 Yes

Unassessed Project Urban Runoff/Storm Nutrients Medium 1996 Yes Catfish Creek (Stream Code: 37132, SWP: 20F) 971124-1340-ALF 2.3 Unassessed Project Habitat Modification Siltation Medium 1998 Yes Unassessed Project Sewers Unassessed Project Urban Runoff/Storm Nutrients Medium 1998 Yes

Unassessed971205-1000-ALF Project 1.68 Unassessed Project Acid Mine Drainage Metals Medium 1996 Yes Acid Mine Drainage Suspended Solids Medium 1996 Yes Agriculture Nutrients Medium 1996 Yes Combined Sewer Overflow Organic Enrichment/Low D.O. Medium 1996 Yes Unassessed Project Habitat Modification Nutrients Medium 1996 Yes Sewers Unassessed Project Habitat Modification Siltation Medium 1996 Yes

Unassessed Project

Sewers Unassessed Project

Unassessed Project Unassessed Project Unassessed Project Unassessed Project Sewers Unassessed Project

Sewers

D-5 Appendix D: Year 2000 303(d) List OF STREAMS AND RIVERS IN WATERSHED 20F, CHARTIERS CREEK WATERSHED

Segment ID Mile Data Source Source of Impairment Cause of Impairment Priority Listed by 2002? TMDL

Urban Runoff/Storm Nutrients Medium 1996 Yes

Urban Runoff/Storm Siltation Medium 1996 Yes

Catfish Creek, Unt (Stream Code: 37133, SWP: 20F) 971124-1340-ALF 1.16 Unassessed Project Habitat Modification Siltation Medium 1998 Yes

Urban Runoff/Storm Nutrients Medium 1998 Yes

Chartiers Creek (Stream Code: 36777, SWP: 20F)

4681 1.7 Surface Water Acid Mine Drainage Metals Medium 1996 Yes

Unassessed970902-1125-ALF Project 11.26 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Acid Mine Drainage Organic Enrichment/Low D.O. Medium 1998 Yes Acid Mine Drainage Salinity/TDS/Chlorides Medium 1998 Yes Unassessed Project Acid Mine Drainage Turbidity Medium 1998 Yes 970930-0940-TV 1.4 Unassessed Project Grazing Related Agric Nutrients Medium 1998 Yes Land Development Nutrients Medium 1998 Yes

Small Residential Siltation Medium 1998 Yes Unassessed Project 971001-0900-TV 4.84 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes

Sewers Urban Runoff/Storm Nutrients Medium 1998 Yes Monitoring Program

Sewers Unassessed Project Urban Runoff/Storm Siltation Medium 1998 Yes Unassessed Project Unassessed971003-0940-ALF Project 2.86 Unassessed Project Habitat Modification Siltation Medium 1998 Yes Habitat Modification Turbidity Medium 1998 Yes Unassessed971022-0930-ALF Project 1.06 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Sewers Habitat Modification Other Habitat Alterations Low 1998 Yes Unassessed971029-1200-ALF Project 4.3 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Habitat Modification Siltation Medium 1998 Yes Habitat Modification Turbidity Medium 1998 Yes Unassessed971204-0950-ALF Project 4.47 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Acid Mine Drainage Salinity/TDS/Chlorides Medium 1998 Yes Unassessed Project Acid Mine Drainage Siltation Medium 1998 Yes Acid Mine Drainage Suspended Solids Medium 1998 Yes 971204-1045-ALF 8.62 Unassessed Project Acid Mine Drainage Metals Medium 1996 Yes Unassessed Project Acid Mine Drainage Salinity/TDS/Chlorides Medium 1996 Yes Acid Mine Drainage Siltation Medium 1996 Yes Acid Mine Drainage Suspended Solids Medium 1996 Yes Unassessed971205-1000-ALF Project 10.11 Unassessed Project Acid Mine Drainage Metals Medium 1996 Yes Runoff Acid Mine Drainage Suspended Solids Medium 1996 Yes Unassessed971205-1000-ALF Project 10.11 Unassessed Project Agriculture Nutrients Medium 1996 Yes Combined Sewer Overflow Organic Enrichment/Low D.O. Medium 1996 Yes Unassessed Project Unassessed Project Sewers Unassessed Project Unassessed Project Sewers Unassessed Project

Unassessed Project Unassessed Project Unassessed Project

Unassessed Project

Unassessed Project

D-6 Appendix D: Year 2000 303(d) List OF STREAMS AND RIVERS IN WATERSHED 20F, CHARTIERS CREEK WATERSHED

Segment ID Mile Data Source Source of Impairment Cause of Impairment Priority Listed by 2002? TMDL Habitat Modification Nutrients Medium 1996 Yes Habitat Modification Siltation Medium 1996 Yes

Urban Runoff/Storm Nutrients Medium 1996 Yes

Urban Runoff/Storm Siltation Medium 1996 Yes

Chartiers Creek, Unt (Stream Code: 36779, SWP: 20F) 971204-0950-ALF 0.8 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Acid Mine Drainage Salinity/TDS/Chlorides Medium 1998 Yes Acid Mine Drainage Siltation Medium 1998 Yes Acid Mine Drainage Suspended Solids Medium 1998 Yes Chartiers Creek, Unt (Stream Code: 36780, SWP: 20F) Unassessed971204-0950-ALF Project 0.63 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Unassessed Project Acid Mine Drainage Salinity/TDS/Chlorides Medium 1998 Yes Acid Mine Drainage Siltation Medium 1998 Yes Unassessed Project Acid Mine Drainage Suspended Solids Medium 1998 Yes Chartiers Creek, Unt (Stream Code: 36781, SWP: 20F) 971204-1045-ALF 1.51 Unassessed Project Acid Mine Drainage Metals Medium 1996 Yes Unassessed Project Acid Mine Drainage Salinity/TDS/Chlorides Medium 1996 Yes Acid Mine Drainage Siltation Medium 1996 Yes Acid Mine Drainage Suspended Solids Medium 1996 Yes Chartiers Creek, Unt (Stream Code: 36782, SWP: 20F) Unassessed971204-1045-ALF Project 0.49 Unassessed Project Acid Mine Drainage Metals Medium 1996 Yes Unassessed Project Acid Mine Drainage Salinity/TDS/Chlorides Medium 1996 Yes Unassessed Project Acid Mine Drainage Siltation Medium 1996 Yes Acid Mine Drainage Suspended Solids Medium 1996 Yes Chartiers Creek, Unt (Stream Code: 36783, SWP: 20F) Sewers Unassessed971204-1045-ALF Project 0.65 Unassessed Project Acid Mine Drainage Metals Medium 1996 Yes Unassessed Project Acid Mine Drainage Salinity/TDS/Chlorides Medium 1996 Yes Unassessed Project Acid Mine Drainage Siltation Medium 1996 Yes Sewers Acid Mine Drainage Suspended Solids Medium 1996 Yes Chartiers Creek, Unt (Stream Code: 36792, SWP: 20F) Unassessed971204-1045-ALF Project 2 Unassessed Project Acid Mine Drainage Metals Medium 1996 Yes Unassessed Project Acid Mine Drainage Salinity/TDS/Chlorides Medium 1996 Yes Unassessed Project Acid Mine Drainage Siltation Medium 1996 Yes Acid Mine Drainage Suspended Solids Medium 1996 Yes Chartiers Creek, Unt (Stream Code: 36793, SWP: 20F) Unassessed971204-1045-ALF Project 0.19 Unassessed Project Acid Mine Drainage Metals Medium 1996 Yes Unassessed Project Acid Mine Drainage Salinity/TDS/Chlorides Medium 1996 Yes Unassessed Project Acid Mine Drainage Siltation Medium 1996 Yes Acid Mine Drainage Suspended Solids Medium 1996 Yes Chartiers Creek, Unt (Stream Code: 36800, SWP: 20F) Unassessed971204-1045-ALF Project 0.65 Unassessed Project Acid Mine Drainage Metals Medium 1996 Yes Unassessed Project Acid Mine Drainage Salinity/TDS/Chlorides Medium 1996 Yes Unassessed Project Acid Mine Drainage Siltation Medium 1996 Yes Acid Mine Drainage Suspended Solids Medium 1996 Yes Chartiers Creek, Unt (Stream Code: 36801, SWP: 20F) Unassessed971204-1045-ALF Project 1.8 Unassessed Project Acid Mine Drainage Metals Medium 1996 Yes Unassessed Project Acid Mine Drainage Salinity/TDS/Chlorides Medium 1996 Yes Unassessed Project

Unassessed Project Unassessed Project Unassessed Project

Unassessed Project Unassessed Project Unassessed Project

Unassessed Project

D-7 Appendix D: Year 2000 303(d) List OF STREAMS AND RIVERS IN WATERSHED 20F, CHARTIERS CREEK WATERSHED

Segment ID Mile Data Source Source of Impairment Cause of Impairment Priority Listed by 2002? TMDL Acid Mine Drainage Siltation Medium 1996 Yes Acid Mine Drainage Suspended Solids Medium 1996 Yes Chartiers Creek, Unt (Stream Code: 36802, SWP: 20F) 971204-1045-ALF 0.51 Unassessed Project Acid Mine Drainage Metals Medium 1996 Yes Acid Mine Drainage Salinity/TDS/Chlorides Medium 1996 Yes Acid Mine Drainage Siltation Medium 1996 Yes Acid Mine Drainage Suspended Solids Medium 1996 Yes Chartiers Creek, Unt (Stream Code: 36871, SWP: 20F) 971204-1300-ALF 2.16 Unassessed Project Agriculture Nutrients Medium 1998 Yes Construction Siltation Medium 1998 Yes Chartiers Creek, Unt (Stream Code: 36872, SWP: 20F) 971204-1300-ALF 1.52 Unassessed Project Agriculture Nutrients Medium 1998 Yes Construction Siltation Medium 1998 Yes Chartiers Creek, Unt (Stream Code: 36939, SWP: 20F) Unassessed971204-1300-ALF Project 0.71 Unassessed Project Agriculture Nutrients Medium 1998 Yes Unassessed Project Construction Siltation Medium 1998 Yes Chartiers Creek, Unt (Stream Code: 37030, SWP: 20F) 970902-1125-ALF 0.24 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Unassessed Project Acid Mine Drainage Organic Enrichment/Low D.O. Medium 1998 Yes Unassessed Project Acid Mine Drainage Salinity/TDS/Chlorides Medium 1998 Yes Unassessed Project Acid Mine Drainage Turbidity Medium 1998 Yes Chartiers Creek, Unt (Stream Code: 37031, SWP: 20F) 971022-1500-ALF 1.21 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Unassessed Project Habitat Modification Other Habitat Alterations Low 1998 Yes Habitat Modification Siltation Medium 1998 Yes Habitat Modification Turbidity Medium 1998 Yes UnassessedChartiers Creek,Project Unt (Stream Code: 37032, SWP: 20F) 971022-1345-ALF 2.55 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Habitat Modification Other Habitat Alterations Low 1998 Yes UnassessedChartiers Creek,Project Unt (Stream Code: 37033, SWP: 20F) 971022-1345-ALF 0.83 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Habitat Modification Other Habitat Alterations Low 1998 Yes UnassessedChartiers Creek,Project Unt (Stream Code: 37034, SWP: 20F) Unassessed971022-1345-ALF Project 0.85 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Unassessed Project Habitat Modification Other Habitat Alterations Low 1998 Yes Chartiers Creek, Unt (Stream Code: 37035, SWP: 20F) 971029-1200-ALF 1.27 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Unassessed Project Habitat Modification Siltation Medium 1998 Yes Unassessed Project Habitat Modification Turbidity Medium 1998 Yes UnassessedChartiers Creek,Project Unt (Stream Code: 37041, SWP: 20F) 971023-1020-ALF 1.5 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Habitat Modification Other Habitat Alterations Low 1998 Yes UnassessedChartiers Creek,Project Unt (Stream Code: 37042, SWP: 20F) 971023-1020-ALF 0.3 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Habitat Modification Other Habitat Alterations Low 1998 Yes UnassessedChartiers Creek,Project Unt (Stream Code: 37076, SWP: 20F) 971205-1000-ALF 1.01 Unassessed Project Acid Mine Drainage Metals Medium 1996 Yes Acid Mine Drainage Suspended Solids Medium 1996 Yes Unassessed Project Agriculture Nutrients Medium 1996 Yes Combined Sewer Overflow Organic Enrichment/Low D.O. Medium 1996 Yes Habitat Modification Nutrients Medium 1996 Yes Unassessed Project Unassessed Project

Unassessed Project

Unassessed Project

Unassessed Project Unassessed Project Unassessed Project Unassessed Project

D-8 Appendix D: Year 2000 303(d) List OF STREAMS AND RIVERS IN WATERSHED 20F, CHARTIERS CREEK WATERSHED

Segment ID Mile Data Source Source of Impairment Cause of Impairment Priority Listed by 2002? TMDL Habitat Modification Siltation Medium 1996 Yes

Urban Runoff/Storm Nutrients Medium 1996 Yes

Urban Runoff/Storm Siltation Medium 1996 Yes

Chartiers Creek, Unt (Stream Code: 37078, SWP: 20F) 971029-1415-ALF 2.43 Unassessed Project Habitat Modification Siltation Medium 1998 Yes Habitat Modification Turbidity Medium 1998 Yes Chartiers Creek, Unt (Stream Code: 37079, SWP: 20F) 971029-1415-ALF 1.26 Unassessed Project Habitat Modification Siltation Medium 1998 Yes Habitat Modification Turbidity Medium 1998 Yes Chartiers Creek, Unt (Stream Code: 37080, SWP: 20F) Unassessed971029-1415-ALF Project 0.32 Unassessed Project Habitat Modification Siltation Medium 1998 Yes Habitat Modification Turbidity Medium 1998 Yes UnassessedChartiers Creek,Project Unt (Stream Code: 37081, SWP: 20F) 971029-1415-ALF 0.59 Unassessed Project Habitat Modification Siltation Medium 1998 Yes Habitat Modification Turbidity Medium 1998 Yes UnassessedChartiers Creek,Project Unt (Stream Code: 37082, SWP: 20F) 971029-1415-ALF 0.6 Unassessed Project Habitat Modification Siltation Medium 1998 Yes Habitat Modification Turbidity Medium 1998 Yes Chartiers Creek, Unt (Stream Code: 37083, SWP: 20F) Unassessed971029-1415-ALF Project 0.21 Unassessed Project Habitat Modification Siltation Medium 1998 Yes Habitat Modification Turbidity Medium 1998 Yes Chartiers Creek, Unt (Stream Code: 37084, SWP: 20F) Unassessed971029-1415-ALF Project 0.77 Unassessed Project Habitat Modification Siltation Medium 1998 Yes Habitat Modification Turbidity Medium 1998 Yes SewersChartiers Creek, Unt (Stream Code: 37085, SWP: 20F) Unassessed971029-1415-ALF Project 0.37 Unassessed Project Habitat Modification Siltation Medium 1998 Yes Habitat Modification Turbidity Medium 1998 Yes SewersChartiers Creek, Unt (Stream Code: 37098, SWP: 20F) Unassessed971205-1000-ALF Project 1.57 Unassessed Project Acid Mine Drainage Metals Medium 1996 Yes Acid Mine Drainage Suspended Solids Medium 1996 Yes Agriculture Nutrients Medium 1996 Yes Unassessed Project Combined Sewer Overflow Organic Enrichment/Low D.O. Medium 1996 Yes Habitat Modification Nutrients Medium 1996 Yes Habitat Modification Siltation Medium 1996 Yes Unassessed Project Urban Runoff/Storm Nutrients Medium 1996 Yes

Unassessed Project Urban Runoff/Storm Siltation Medium 1996 Yes

UnassessedChartiers Creek,Project Unt (Stream Code: 37099, SWP: 20F) 971205-1000-ALF 0.11 Unassessed Project Acid Mine Drainage Metals Medium 1996 Yes Acid Mine Drainage Suspended Solids Medium 1996 Yes Unassessed Project Agriculture Nutrients Medium 1996 Yes Unassessed Project Combined Sewer Overflow Organic Enrichment/Low D.O. Medium 1996 Yes Unassessed Project Habitat Modification Nutrients Medium 1996 Yes Unassessed Project Habitat Modification Siltation Medium 1996 Yes Unassessed Project

Unassessed Project

Unassessed Project

Unassessed Project Unassessed Project Unassessed Project Unassessed Project Unassessed Project Sewers

Sewers

D-9 Appendix D: Year 2000 303(d) List OF STREAMS AND RIVERS IN WATERSHED 20F, CHARTIERS CREEK WATERSHED

Segment ID Mile Data Source Source of Impairment Cause of Impairment Priority Listed by 2002? TMDL

Urban Runoff/Storm Nutrients Medium 1996 Yes

Urban Runoff/Storm Siltation Medium 1996 Yes

Chartiers Creek, Unt (Stream Code: 37100, SWP: 20F) 971205-1000-ALF 1.88 Unassessed Project Acid Mine Drainage Metals Medium 1996 Yes Acid Mine Drainage Suspended Solids Medium 1996 Yes Agriculture Nutrients Medium 1996 Yes Combined Sewer Overflow Organic Enrichment/Low D.O. Medium 1996 Yes Habitat Modification Nutrients Medium 1996 Yes Habitat Modification Siltation Medium 1996 Yes

Urban Runoff/Storm Nutrients Medium 1996 Yes Unassessed Project

Urban Runoff/Storm Siltation Medium 1996 Yes Unassessed Project Chartiers Creek, Unt (Stream Code: 37101, SWP: 20F) 971205-1000-ALF 0.83 Unassessed Project Acid Mine Drainage Metals Medium 1996 Yes Acid Mine Drainage Suspended Solids Medium 1996 Yes Unassessed Project Agriculture Nutrients Medium 1996 Yes Unassessed Project Combined Sewer Overflow Organic Enrichment/Low D.O. Medium 1996 Yes Unassessed Project Habitat Modification Nutrients Medium 1996 Yes Unassessed Project Habitat Modification Siltation Medium 1996 Yes Unassessed Project Sewers Urban Runoff/Storm Nutrients Medium 1996 Yes Unassessed Project

Sewers Urban Runoff/Storm Siltation Medium 1996 Yes Unassessed Project Chartiers Creek, Unt (Stream Code: 37102, SWP: 20F) 971205-1000-ALF 0.61 Unassessed Project Acid Mine Drainage Metals Medium 1996 Yes Acid Mine Drainage Suspended Solids Medium 1996 Yes Unassessed Project Agriculture Nutrients Medium 1996 Yes Unassessed Project Combined Sewer Overflow Organic Enrichment/Low D.O. Medium 1996 Yes Unassessed Project Habitat Modification Nutrients Medium 1996 Yes Unassessed Project Habitat Modification Siltation Medium 1996 Yes Unassessed Project Sewers Urban Runoff/Storm Nutrients Medium 1996 Yes Unassessed Project

Sewers Urban Runoff/Storm Siltation Medium 1996 Yes Unassessed Project Chartiers Creek, Unt (Stream Code: 37103, SWP: 20F) 971205-1000-ALF 0.07 Unassessed Project Acid Mine Drainage Metals Medium 1996 Yes Acid Mine Drainage Suspended Solids Medium 1996 Yes Unassessed Project Agriculture Nutrients Medium 1996 Yes Unassessed Project Combined Sewer Overflow Organic Enrichment/Low D.O. Medium 1996 Yes Unassessed Project Habitat Modification Nutrients Medium 1996 Yes Unassessed Project Unassessed Project Sewers Unassessed Project Sewers Unassessed Project

Unassessed Project Unassessed Project Unassessed Project Unassessed Project Sewers

Sewers

D-10 Appendix D: Year 2000 303(d) List OF STREAMS AND RIVERS IN WATERSHED 20F, CHARTIERS CREEK WATERSHED

Segment ID Mile Data Source Source of Impairment Cause of Impairment Priority Listed by 2002? TMDL Habitat Modification Siltation Medium 1996 Yes

Urban Runoff/Storm Nutrients Medium 1996 Yes

Urban Runoff/Storm Siltation Medium 1996 Yes

Chartiers Creek, Unt (Stream Code: 37104, SWP: 20F) 971205-1000-ALF 0.48 Unassessed Project Acid Mine Drainage Metals Medium 1996 Yes Acid Mine Drainage Suspended Solids Medium 1996 Yes Agriculture Nutrients Medium 1996 Yes Combined Sewer Overflow Organic Enrichment/Low D.O. Medium 1996 Yes Habitat Modification Nutrients Medium 1996 Yes Habitat Modification Siltation Medium 1996 Yes Unassessed Project Urban Runoff/Storm Nutrients Medium 1996 Yes Unassessed Project

Urban Runoff/Storm Siltation Medium 1996 Yes Unassessed Project Chartiers Creek, Unt (Stream Code: 37105, SWP: 20F) 971124-0915-ALF 2 Unassessed Project Agriculture Nutrients Medium 1998 Yes

Unassessed Project Urban Runoff/Storm Nutrients Medium 1998 Yes Unassessed Project Unassessed971205-1000-ALF Project 0.53 Unassessed Project Acid Mine Drainage Metals Medium 1996 Yes Unassessed Project Acid Mine Drainage Suspended Solids Medium 1996 Yes Unassessed Project Agriculture Nutrients Medium 1996 Yes Sewers Combined Sewer Overflow Organic Enrichment/Low D.O. Medium 1996 Yes Unassessed Project Habitat Modification Nutrients Medium 1996 Yes Habitat Modification Siltation Medium 1996 Yes Sewers Unassessed Project Urban Runoff/Storm Nutrients Medium 1996 Yes

Urban Runoff/Storm Siltation Medium 1996 Yes

UnassessedChartiers Creek,Project Unt (Stream Code: 37106, SWP: 20F) 971124-0915-ALF 0.29 Unassessed Project Agriculture Nutrients Medium 1998 Yes

Unassessed Project Urban Runoff/Storm Nutrients Medium 1998 Yes Sewers Unassessed Project UnassessedChartiers Creek,Project Unt (Stream Code: 37107, SWP: 20F) Unassessed971124-0915-ALF Project 0.52 Unassessed Project Agriculture Nutrients Medium 1998 Yes Sewers Unassessed Project Urban Runoff/Storm Nutrients Medium 1998 Yes Unassessed Project Chartiers Creek, Unt (Stream Code: 37108, SWP: 20F) 971124-0915-ALF 0.38 Unassessed Project Agriculture Nutrients Medium 1998 Yes Sewers Unassessed Project Urban Runoff/Storm Nutrients Medium 1998 Yes

Unassessed Project

Sewers Unassessed Project Sewers

Unassessed Project Sewers

Sewers

D-11 Appendix D: Year 2000 303(d) List OF STREAMS AND RIVERS IN WATERSHED 20F, CHARTIERS CREEK WATERSHED

Segment ID Mile Data Source Source of Impairment Cause of Impairment Priority Listed by 2002? TMDL Chartiers Creek, Unt (Stream Code: 37109, SWP: 20F) 971124-1030-ALF 3.1 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Acid Mine Drainage Suspended Solids Medium 1998 Yes Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes 971205-1000-ALF 0.13 Unassessed Project Acid Mine Drainage Metals Medium 1996 Yes Acid Mine Drainage Suspended Solids Medium 1996 Yes Agriculture Nutrients Medium 1996 Yes Combined Sewer Overflow Organic Enrichment/Low D.O. Medium 1996 Yes Habitat Modification Nutrients Medium 1996 Yes Habitat Modification Siltation Medium 1996 Yes

Urban Runoff/Storm Nutrients Medium 1996 Yes

Urban Runoff/Storm Siltation Medium 1996 Yes Unassessed Project UnassessedChartiers Creek,Project Unt (Stream Code: 37110, SWP: 20F) Unassessed971124-1030-ALF Project 1.46 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Acid Mine Drainage Suspended Solids Medium 1998 Yes Unassessed Project Agriculture Nutrients Medium 1998 Yes Unassessed Project Agriculture Siltation Medium 1998 Yes UnassessedChartiers Creek,Project Unt (Stream Code: 37121, SWP: 20F) Unassessed970926-0954-TV Project 2.95 Unassessed Project Source Unknown Nutrients Medium 1998 Yes Sewers Unassessed971205-1000-ALF Project 0.84 Unassessed Project Acid Mine Drainage Metals Medium 1996 Yes Acid Mine Drainage Suspended Solids Medium 1996 Yes Unassessed Project Agriculture Nutrients Medium 1996 Yes Combined Sewer Overflow Organic Enrichment/Low D.O. Medium 1996 Yes Habitat Modification Nutrients Medium 1996 Yes Unassessed Project Habitat Modification Siltation Medium 1996 Yes

Urban Runoff/Storm Nutrients Medium 1996 Yes

Unassessed Project Unassessed Project Urban Runoff/Storm Siltation Medium 1996 Yes Unassessed Project Chartiers Creek, Unt (Stream Code: 37122, SWP: 20F) 971205-1000-ALF 0.52 Unassessed Project Acid Mine Drainage Metals Medium 1996 Yes Sewers Acid Mine Drainage Suspended Solids Medium 1996 Yes Unassessed Project Agriculture Nutrients Medium 1996 Yes Unassessed Project Combined Sewer Overflow Organic Enrichment/Low D.O. Medium 1996 Yes Sewers Unassessed Project Habitat Modification Nutrients Medium 1996 Yes Unassessed Project Habitat Modification Siltation Medium 1996 Yes Unassessed Project Urban Runoff/Storm Nutrients Medium 1996 Yes Unassessed Project

Urban Runoff/Storm Siltation Medium 1996 Yes Unassessed Project Chartiers Creek, Unt (Stream Code: 37123, SWP: 20F)

Unassessed Project Unassessed Project Unassessed Project Unassessed Project Unassessed Project Sewers Unassessed Project Sewers Unassessed Project

Sewers

Sewers

D-12 Appendix D: Year 2000 303(d) List OF STREAMS AND RIVERS IN WATERSHED 20F, CHARTIERS CREEK WATERSHED

Segment ID Mile Data Source Source of Impairment Cause of Impairment Priority Listed by 2002? TMDL 971205-1000-ALF 0.57 Unassessed Project Acid Mine Drainage Metals Medium 1996 Yes Acid Mine Drainage Suspended Solids Medium 1996 Yes Agriculture Nutrients Medium 1996 Yes Combined Sewer Overflow Organic Enrichment/Low D.O. Medium 1996 Yes Habitat Modification Nutrients Medium 1996 Yes Habitat Modification Siltation Medium 1996 Yes

Urban Runoff/Storm Nutrients Medium 1996 Yes

Urban Runoff/Storm Siltation Medium 1996 Yes

Chartiers Creek, Unt (Stream Code: 37124, SWP: 20F) 970926-0954-TV 0.93 Unassessed Project Source Unknown Nutrients Medium 1998 Yes Chartiers Creek, Unt (Stream Code: 37125, SWP: 20F) Unassessed970926-0954-TV Project 1 Unassessed Project Source Unknown Nutrients Medium 1998 Yes UnassessedChartiers Creek,Project Unt (Stream Code: 37126, SWP: 20F) Unassessed970926-0954-TV Project 1.28 Unassessed Project Source Unknown Nutrients Medium 1998 Yes UnassessedChartiers Creek,Project Unt (Stream Code: 37127, SWP: 20F) Unassessed970926-0954-TV Project 0.85 Unassessed Project Source Unknown Nutrients Medium 1998 Yes Chartiers Creek, Unt (Stream Code: 37128, SWP: 20F) Unassessed970926-0954-TV Project 0.61 Unassessed Project Source Unknown Nutrients Medium 1998 Yes Chartiers Creek, Unt (Stream Code: 37129, SWP: 20F) 970926-0954-TV 0.89 Unassessed Project Source Unknown Nutrients Medium 1998 Yes UnassessedChartiers Creek,Project Unt (Stream Code: 37130, SWP: 20F) 970926-0954-TV 0.44 Unassessed Project Source Unknown Nutrients Medium 1998 Yes Chartiers Creek, Unt (Stream Code: 37131, SWP: 20F) 970926-0954-TV 0.6 Unassessed Project Source Unknown Nutrients Medium 1998 Yes Chartiers Creek, Unt (Stream Code: 37134, SWP: 20F) 971205-1000-ALF 0.58 Unassessed Project Acid Mine Drainage Metals Medium 1996 Yes Acid Mine Drainage Suspended Solids Medium 1996 Yes Agriculture Nutrients Medium 1996 Yes Combined Sewer Overflow Organic Enrichment/Low D.O. Medium 1996 Yes Sewers Habitat Modification Nutrients Medium 1996 Yes Habitat Modification Siltation Medium 1996 Yes

Sewers Urban Runoff/Storm Nutrients Medium 1996 Yes

Urban Runoff/Storm Siltation Medium 1996 Yes

Chartiers Creek, Unt (Stream Code: 37135, SWP: 20F) 970930-1310-TV 0.25 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes Unassessed971001-0900-TV Project 0.48 Unassessed Project Agriculture Nutrients Medium 1998 Yes Unassessed Project Agriculture Siltation Medium 1998 Yes Unassessed Project Unassessed Project Urban Runoff/Storm Nutrients Medium 1998 Yes Unassessed Project

Unassessed Project Urban Runoff/Storm Siltation Medium 1998 Yes

Unassessed Project

Unassessed Project

Unassessed Project

Unassessed Project Sewers

Unassessed Project Sewers

Sewers

D-13 Appendix D: Year 2000 303(d) List OF STREAMS AND RIVERS IN WATERSHED 20F, CHARTIERS CREEK WATERSHED

Segment ID Mile Data Source Source of Impairment Cause of Impairment Priority Listed by 2002? TMDL 971001-1040-TV 1.92 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Acid Mine Drainage Siltation Medium 1998 Yes

Urban Runoff/Storm Siltation Medium 1998 Yes

Chartiers Creek, Unt (Stream Code: 37136, SWP: 20F) 970930-1310-TV 1.14 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes Chartiers Creek, Unt (Stream Code: 37137, SWP: 20F) 970930-1310-TV 1.55 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes 971001-0900-TV 0.58 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes

Urban Runoff/Storm Nutrients Medium 1998 Yes Unassessed Project

Unassessed Project Urban Runoff/Storm Siltation Medium 1998 Yes Chartiers Creek, Unt (Stream Code: 37138, SWP: 20F) 970930-1310-TV 1.29 Unassessed Project Agriculture Nutrients Medium 1998 Yes Unassessed Project Agriculture Siltation Medium 1998 Yes Chartiers Creek, Unt (Stream Code: 37139, SWP: 20F) 971001-1040-TV 1.19 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Sewers Unassessed Project Acid Mine Drainage Siltation Medium 1998 Yes

Unassessed Project Urban Runoff/Storm Siltation Medium 1998 Yes

UnassessedChartiers Creek,Project Unt (Stream Code: 37140, SWP: 20F) Sewers971001-0900-TV 0.49 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes Unassessed Project Urban Runoff/Storm Nutrients Medium 1998 Yes

Unassessed Project Urban Runoff/Storm Siltation Medium 1998 Yes

Chartiers Creek, Unt (Stream Code: 37141, SWP: 20F) Unassessed971001-0900-TV Project 0.13 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes Sewers Unassessed Project Urban Runoff/Storm Nutrients Medium 1998 Yes

Sewers Unassessed Project Urban Runoff/Storm Siltation Medium 1998 Yes

UnassessedChartiers Creek,Project Unt (Stream Code: 37142, SWP: 20F) 971001-0900-TV 0.19 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes Unassessed Project

Sewers Unassessed Project

Unassessed Project

Sewers Unassessed Project

Sewers Unassessed Project

Sewers

Sewers

D-14 Appendix D: Year 2000 303(d) List OF STREAMS AND RIVERS IN WATERSHED 20F, CHARTIERS CREEK WATERSHED

Segment ID Mile Data Source Source of Impairment Cause of Impairment Priority Listed by 2002? TMDL Urban Runoff/Storm Nutrients Medium 1998 Yes

Urban Runoff/Storm Siltation Medium 1998 Yes

Chartiers Creek, Unt (Stream Code: 37143, SWP: 20F) 971001-0900-TV 0.73 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes

Urban Runoff/Storm Nutrients Medium 1998 Yes

Urban Runoff/Storm Siltation Medium 1998 Yes

UnassessedChartiers Creek,Project Unt (Stream Code: 37144, SWP: 20F) 971124-1340-ALF 1.14 Unassessed Project Habitat Modification Siltation Medium 1998 Yes

Unassessed Project Urban Runoff/Storm Nutrients Medium 1998 Yes Chartiers Creek, Unt (Stream Code: 37145, SWP: 20F) 971001-0900-TV 1.12 Unassessed Project Agriculture Nutrients Medium 1998 Yes Unassessed Project Agriculture Siltation Medium 1998 Yes

Unassessed Project Urban Runoff/Storm Nutrients Medium 1998 Yes

Sewers Unassessed Project Urban Runoff/Storm Siltation Medium 1998 Yes

Chartiers Creek, Unt (Stream Code: 37148, SWP: 20F) Sewers971001-0900-TV 0.92 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes Unassessed Project Urban Runoff/Storm Nutrients Medium 1998 Yes

Sewers Unassessed Project Urban Runoff/Storm Siltation Medium 1998 Yes

UnassessedChartiers Creek,Project Unt (Stream Code: 37149, SWP: 20F) Sewers971001-0900-TV 0.82 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes Unassessed Project Urban Runoff/Storm Nutrients Medium 1998 Yes

Sewers Unassessed Project Urban Runoff/Storm Siltation Medium 1998 Yes

UnassessedChartiers Creek,Project Unt (Stream Code: 37150, SWP: 20F) 971001-0900-TV 0.5 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes Sewers Unassessed Project Urban Runoff/Storm Nutrients Medium 1998 Yes Sewers Unassessed Project

Unassessed Project

Sewers Unassessed Project

Sewers Unassessed Project

Unassessed Project

Sewers

Sewers

D-15 Appendix D: Year 2000 303(d) List OF STREAMS AND RIVERS IN WATERSHED 20F, CHARTIERS CREEK WATERSHED

Segment ID Mile Data Source Source of Impairment Cause of Impairment Priority Listed by 2002? TMDL

Urban Runoff/Storm Siltation Medium 1998 Yes

Chartiers Creek, Unt (Stream Code: 37152, SWP: 20F) 971001-0900-TV 0.91 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes

Urban Runoff/Storm Nutrients Medium 1998 Yes

Urban Runoff/Storm Siltation Medium 1998 Yes

Chartiers Creek, Unt (Stream Code: 37153, SWP: 20F) 971001-0900-TV 2.29 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes Unassessed Project Urban Runoff/Storm Nutrients Medium 1998 Yes

Unassessed Project Urban Runoff/Storm Siltation Medium 1998 Yes

UnassessedChartiers Creek,Project Unt (Stream Code: 37154, SWP: 20F) 971001-0900-TV 0.37 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes Sewers Unassessed Project Urban Runoff/Storm Nutrients Medium 1998 Yes

Sewers Unassessed Project Urban Runoff/Storm Siltation Medium 1998 Yes

UnassessedChartiers Creek,Project Unt (Stream Code: 37155, SWP: 20F) 971001-0900-TV 1.69 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes Sewers Unassessed Project Urban Runoff/Storm Nutrients Medium 1998 Yes

Sewers Unassessed Project Urban Runoff/Storm Siltation Medium 1998 Yes

UnassessedChartiers Creek,Project Unt (Stream Code: 37156, SWP: 20F) 971001-0900-TV 1.05 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes Sewers Unassessed Project Urban Runoff/Storm Nutrients Medium 1998 Yes

Sewers Unassessed Project Urban Runoff/Storm Siltation Medium 1998 Yes

UnassessedChartiers Creek,Project Unt (Stream Code: 37157, SWP: 20F) 970930-0940-TV 1.3 Unassessed Project Grazing Related Agric Nutrients Medium 1998 Yes Sewers Unassessed Project

Sewers Unassessed Project

Unassessed Project

Sewers Unassessed Project

Sewers

Sewers

Sewers

D-16 Appendix D: Year 2000 303(d) List OF STREAMS AND RIVERS IN WATERSHED 20F, CHARTIERS CREEK WATERSHED

Segment ID Mile Data Source Source of Impairment Cause of Impairment Priority Listed by 2002? TMDL Land Development Nutrients Medium 1998 Yes

Small Residential Siltation Medium 1998 Yes

Chartiers Creek, Unt (Stream Code: 37158, SWP: 20F) 970930-0940-TV 1.11 Unassessed Project Grazing Related Agric Nutrients Medium 1998 Yes Land Development Nutrients Medium 1998 Yes

Small Residential Siltation Medium 1998 Yes

Chartiers Creek, Unt (Stream Code: 63869, SWP: 20F) 971124-1030-ALF 0.85 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Acid Mine Drainage Suspended Solids Medium 1998 Yes Agriculture Nutrients Medium 1998 Yes Unassessed Project Agriculture Siltation Medium 1998 Yes Chartiers Creek, Unt (Stream Code: 63870, SWP: 20F) Unassessed971205-1000-ALF Project 1.23 Unassessed Project Acid Mine Drainage Metals Medium 1996 Yes Acid Mine Drainage Suspended Solids Medium 1996 Yes Agriculture Nutrients Medium 1996 Yes Combined Sewer Overflow Organic Enrichment/Low D.O. Medium 1996 Yes Unassessed Project Habitat Modification Nutrients Medium 1996 Yes Habitat Modification Siltation Medium 1996 Yes Unassessed Project Urban Runoff/Storm Nutrients Medium 1996 Yes

Unassessed Project Urban Runoff/Storm Siltation Medium 1996 Yes Unassessed Project Runoff UnassessedChartiers RunProject (Stream Code: 37043, SWP: 20F) 971023-1130-ALF 0.24 Unassessed Project Construction Siltation Medium 1998 Yes Construction Turbidity Medium 1998 Yes Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Unassessed Project Habitat Modification Siltation Medium 1998 Yes Unassessed Project Habitat Modification Turbidity Medium 1998 Yes Runoff Unassessed971023-1300-ALF Project 0.66 Unassessed Project Habitat Modification Other Habitat Alterations Low 1998 Yes Unassessed Project Habitat Modification Siltation Medium 1998 Yes On site Wastewater Nutrients Medium 1998 Yes Unassessed Project On site Wastewater Organic Enrichment/Low D.O. Medium 1998 Yes 971024-0940-ALF 1.68 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Acid Mine Drainage Salinity/TDS/Chlorides Medium 1998 Yes Unassessed Project Construction Other Habitat Alterations Low 1998 Yes Construction Siltation Medium 1998 Yes Habitat Modification Other Habitat Alterations Low 1998 Yes Habitat Modification Siltation Medium 1998 Yes Unassessed971024-1145-ALF Project 4.42 Unassessed Project Agriculture Nutrients Medium 1998 Yes Unassessed Project Agriculture Siltation Medium 1998 Yes Unassessed Project Agriculture Turbidity Medium 1998 Yes Unassessed Project Habitat Modification Other Habitat Alterations Low 1998 Yes Habitat Modification Siltation Medium 1998 Yes Sewers Unassessed971205-1000-ALF Project 1.29 Unassessed Project Acid Mine Drainage Metals Medium 1996 Yes Unassessed Project Acid Mine Drainage Suspended Solids Medium 1996 Yes Unassessed Project Sewers Unassessed Project Unassessed Project Unassessed Project Unassessed Project Unassessed Project

Unassessed Project Unassessed Project Unassessed Project Unassessed Project

Unassessed Project

D-17 Appendix D: Year 2000 303(d) List OF STREAMS AND RIVERS IN WATERSHED 20F, CHARTIERS CREEK WATERSHED

Segment ID Mile Data Source Source of Impairment Cause of Impairment Priority Listed by 2002? TMDL Agriculture Nutrients Medium 1996 Yes Combined Sewer Overflow Organic Enrichment/Low D.O. Medium 1996 Yes Habitat Modification Nutrients Medium 1996 Yes Habitat Modification Siltation Medium 1996 Yes

Urban Runoff/Storm Nutrients Medium 1996 Yes

Urban Runoff/Storm Siltation Medium 1996 Yes

Chartiers Run, Unt (Stream Code: 37047, SWP: 20F) 971023-1400-ALF 1 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes Habitat Modification Other Habitat Alterations Low 1998 Yes Unassessed Project Habitat Modification Siltation Medium 1998 Yes Unassessed Project Habitat Modification Turbidity Medium 1998 Yes Unassessed Project On site Wastewater Organic Enrichment/Low D.O. Medium 1998 Yes UnassessedChartiers Run,Project Unt (Stream Code: 37048, SWP: 20F) 971023-1400-ALF 2.42 Unassessed Project Agriculture Nutrients Medium 1998 Yes Unassessed Project Agriculture Siltation Medium 1998 Yes Habitat Modification Other Habitat Alterations Low 1998 Yes Habitat Modification Siltation Medium 1998 Yes Unassessed Project Habitat Modification Turbidity Medium 1998 Yes On site Wastewater Organic Enrichment/Low D.O. Medium 1998 Yes Chartiers Run, Unt (Stream Code: 37049, SWP: 20F) 971023-1400-ALF 0.75 Unassessed Project Agriculture Nutrients Medium 1998 Yes Unassessed Project Agriculture Siltation Medium 1998 Yes Unassessed Project Habitat Modification Other Habitat Alterations Low 1998 Yes Unassessed Project Habitat Modification Siltation Medium 1998 Yes Unassessed Project Habitat Modification Turbidity Medium 1998 Yes Unassessed Project On site Wastewater Organic Enrichment/Low D.O. Medium 1998 Yes SewersChartiers Run, Unt (Stream Code: 37050, SWP: 20F) 971024-0940-ALF 0.62 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Unassessed Project Acid Mine Drainage Salinity/TDS/Chlorides Medium 1998 Yes Sewers Unassessed Project Construction Other Habitat Alterations Low 1998 Yes Unassessed Project Construction Siltation Medium 1998 Yes Unassessed Project Habitat Modification Other Habitat Alterations Low 1998 Yes Unassessed Project Habitat Modification Siltation Medium 1998 Yes Chartiers Run, Unt (Stream Code: 37051, SWP: 20F) 971024-1030-ALF 0.9 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Unassessed Project Acid Mine Drainage Salinity/TDS/Chlorides Medium 1998 Yes Unassessed Project Construction Other Habitat Alterations Low 1998 Yes Unassessed Project Construction Siltation Medium 1998 Yes Unassessed Project Habitat Modification Other Habitat Alterations Low 1998 Yes Unassessed Project Habitat Modification Siltation Medium 1998 Yes Chartiers Run, Unt (Stream Code: 37052, SWP: 20F) 971024-1030-ALF 1.63 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Unassessed Project Acid Mine Drainage Salinity/TDS/Chlorides Medium 1998 Yes Unassessed Project Construction Other Habitat Alterations Low 1998 Yes Unassessed Project Construction Siltation Medium 1998 Yes Unassessed Project Habitat Modification Other Habitat Alterations Low 1998 Yes Unassessed Project

Unassessed Project Unassessed Project Unassessed Project Unassessed Project Unassessed Project

Unassessed Project Unassessed Project Unassessed Project Unassessed Project

D-18 Appendix D: Year 2000 303(d) List OF STREAMS AND RIVERS IN WATERSHED 20F, CHARTIERS CREEK WATERSHED

Segment ID Mile Data Source Source of Impairment Cause of Impairment Priority Listed by 2002? TMDL Habitat Modification Siltation Medium 1998 Yes 971028-1000-ALF 0.59 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes Agriculture Turbidity Medium 1998 Yes Habitat Modification pH Medium 1998 Yes Habitat Modification Turbidity Medium 1998 Yes 971028-1100-ALF 1.79 Unassessed Project Acid Mine Drainage Salinity/TDS/Chlorides Medium 1998 Yes Habitat Modification Siltation Medium 1998 Yes Habitat Modification Turbidity Medium 1998 Yes Chartiers Run, Unt (Stream Code: 37053, SWP: 20F) 971028-0840-ALF 2.13 Unassessed Project Habitat Modification Siltation Medium 1998 Yes Habitat Modification Turbidity Medium 1998 Yes On site Wastewater Organic Enrichment/Low D.O. Medium 1998 Yes Chartiers Run, Unt (Stream Code: 37054, SWP: 20F) Unassessed971028-0840-ALF Project 0.57 Unassessed Project Habitat Modification Siltation Medium 1998 Yes Habitat Modification Turbidity Medium 1998 Yes Unassessed Project On site Wastewater Organic Enrichment/Low D.O. Medium 1998 Yes UnassessedChartiers Run,Project Unt (Stream Code: 37055, SWP: 20F) Unassessed971024-1030-ALF Project 0.38 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Unassessed Project Acid Mine Drainage Salinity/TDS/Chlorides Medium 1998 Yes Construction Other Habitat Alterations Low 1998 Yes Unassessed Project Construction Siltation Medium 1998 Yes Unassessed Project Habitat Modification Other Habitat Alterations Low 1998 Yes Habitat Modification Siltation Medium 1998 Yes Chartiers Run, Unt (Stream Code: 37056, SWP: 20F) Unassessed971028-1100-ALF Project 0.95 Unassessed Project Acid Mine Drainage Salinity/TDS/Chlorides Medium 1998 Yes Unassessed Project Habitat Modification Siltation Medium 1998 Yes Habitat Modification Turbidity Medium 1998 Yes Chartiers Run, Unt (Stream Code: 37057, SWP: 20F) Unassessed971028-1100-ALF Project 0.53 Unassessed Project Acid Mine Drainage Salinity/TDS/Chlorides Medium 1998 Yes Unassessed Project Habitat Modification Siltation Medium 1998 Yes Habitat Modification Turbidity Medium 1998 Yes Chartiers Run, Unt (Stream Code: 37058, SWP: 20F) Unassessed971028-1000-ALF Project 0.56 Unassessed Project Agriculture Nutrients Medium 1998 Yes Unassessed Project Agriculture Siltation Medium 1998 Yes Unassessed Project Agriculture Turbidity Medium 1998 Yes Unassessed Project Habitat Modification pH Medium 1998 Yes Unassessed Project Habitat Modification Turbidity Medium 1998 Yes 971028-1100-ALF 0.59 Unassessed Project Acid Mine Drainage Salinity/TDS/Chlorides Medium 1998 Yes Habitat Modification Siltation Medium 1998 Yes Unassessed Project Habitat Modification Turbidity Medium 1998 Yes UnassessedChartiers Run,Project Unt (Stream Code: 37059, SWP: 20F) 971028-1000-ALF 0.42 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes Unassessed Project Agriculture Turbidity Medium 1998 Yes Unassessed Project Habitat Modification pH Medium 1998 Yes Habitat Modification Turbidity Medium 1998 Yes Chartiers Run, Unt (Stream Code: 37060, SWP: 20F) Unassessed971028-1000-ALF Project 0.6 Unassessed Project Agriculture Nutrients Medium 1998 Yes Unassessed Project Agriculture Siltation Medium 1998 Yes Unassessed Project Agriculture Turbidity Medium 1998 Yes Unassessed Project

Unassessed Project Unassessed Project

Unassessed Project Unassessed Project Unassessed Project Unassessed Project

Unassessed Project Unassessed Project

D-19 Appendix D: Year 2000 303(d) List OF STREAMS AND RIVERS IN WATERSHED 20F, CHARTIERS CREEK WATERSHED

Segment ID Mile Data Source Source of Impairment Cause of Impairment Priority Listed by 2002? TMDL Habitat Modification pH Medium 1998 Yes Habitat Modification Turbidity Medium 1998 Yes Chartiers Run, Unt (Stream Code: 37061, SWP: 20F) 971028-1000-ALF 0.59 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes Agriculture Turbidity Medium 1998 Yes Habitat Modification pH Medium 1998 Yes Habitat Modification Turbidity Medium 1998 Yes Chartiers Run, Unt (Stream Code: 37062, SWP: 20F) 971024-1145-ALF 0.88 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes Agriculture Turbidity Medium 1998 Yes Habitat Modification Other Habitat Alterations Low 1998 Yes Habitat Modification Siltation Medium 1998 Yes UnassessedChartiers Run,Project Unt (Stream Code: 37063, SWP: 20F) Unassessed971024-1145-ALF Project 0.96 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes Agriculture Turbidity Medium 1998 Yes Unassessed Project Habitat Modification Other Habitat Alterations Low 1998 Yes Unassessed Project Habitat Modification Siltation Medium 1998 Yes UnassessedChartiers Run,Project Unt (Stream Code: 37064, SWP: 20F) Unassessed971024-1145-ALF Project 0.48 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes Agriculture Turbidity Medium 1998 Yes Unassessed Project Habitat Modification Other Habitat Alterations Low 1998 Yes Unassessed Project Habitat Modification Siltation Medium 1998 Yes UnassessedChartiers Run,Project Unt (Stream Code: 37065, SWP: 20F) Unassessed971024-1145-ALF Project 1.04 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes Agriculture Turbidity Medium 1998 Yes Unassessed Project Habitat Modification Other Habitat Alterations Low 1998 Yes Unassessed Project Habitat Modification Siltation Medium 1998 Yes UnassessedChartiers Run,Project Unt (Stream Code: 37066, SWP: 20F) Unassessed971024-1145-ALF Project 1.06 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes Agriculture Turbidity Medium 1998 Yes Unassessed Project Habitat Modification Other Habitat Alterations Low 1998 Yes Unassessed Project Habitat Modification Siltation Medium 1998 Yes UnassessedChartiers Run,Project Unt (Stream Code: 37067, SWP: 20F) Unassessed971024-1145-ALF Project 1.42 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes Agriculture Turbidity Medium 1998 Yes Unassessed Project Habitat Modification Other Habitat Alterations Low 1998 Yes Unassessed Project Habitat Modification Siltation Medium 1998 Yes UnassessedChartiers Run,Project Unt (Stream Code: 37068, SWP: 20F) Unassessed971024-1145-ALF Project 1.54 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes Agriculture Turbidity Medium 1998 Yes Unassessed Project Habitat Modification Other Habitat Alterations Low 1998 Yes Unassessed Project Habitat Modification Siltation Medium 1998 Yes UnassessedChartiers Run,Project Unt (Stream Code: 37069, SWP: 20F) Unassessed Project

Unassessed Project Unassessed Project Unassessed Project Unassessed Project

Unassessed Project Unassessed Project Unassessed Project Unassessed Project

D-20 Appendix D: Year 2000 303(d) List OF STREAMS AND RIVERS IN WATERSHED 20F, CHARTIERS CREEK WATERSHED

Segment ID Mile Data Source Source of Impairment Cause of Impairment Priority Listed by 2002? TMDL 971024-1145-ALF 0.73 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes Agriculture Turbidity Medium 1998 Yes Habitat Modification Other Habitat Alterations Low 1998 Yes Habitat Modification Siltation Medium 1998 Yes Chartiers Run, Unt (Stream Code: 37070, SWP: 20F) 971024-1145-ALF 0.74 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes Agriculture Turbidity Medium 1998 Yes Habitat Modification Other Habitat Alterations Low 1998 Yes Habitat Modification Siltation Medium 1998 Yes Chartiers Run, Unt (Stream Code: 37071, SWP: 20F) 971024-1145-ALF 1.23 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes Agriculture Turbidity Medium 1998 Yes Unassessed Project Habitat Modification Other Habitat Alterations Low 1998 Yes Unassessed Project Habitat Modification Siltation Medium 1998 Yes UnassessedChartiers Run,Project Unt (Stream Code: 37072, SWP: 20F) Unassessed971024-1145-ALF Project 1.27 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes Agriculture Turbidity Medium 1998 Yes Unassessed Project Habitat Modification Other Habitat Alterations Low 1998 Yes Unassessed Project Habitat Modification Siltation Medium 1998 Yes UnassessedChartiers Run,Project Unt (Stream Code: 37073, SWP: 20F) Unassessed971024-1145-ALF Project 0.6 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes Agriculture Turbidity Medium 1998 Yes Unassessed Project Habitat Modification Other Habitat Alterations Low 1998 Yes Unassessed Project Habitat Modification Siltation Medium 1998 Yes UnassessedChartiers Run,Project Unt (Stream Code: 37074, SWP: 20F) Unassessed971024-1145-ALF Project 0.49 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes Agriculture Turbidity Medium 1998 Yes Unassessed Project Habitat Modification Other Habitat Alterations Low 1998 Yes Unassessed Project Habitat Modification Siltation Medium 1998 Yes UnassessedChartiers Run,Project Unt (Stream Code: 37075, SWP: 20F) Unassessed971024-1145-ALF Project 0.82 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes Agriculture Turbidity Medium 1998 Yes Unassessed Project Habitat Modification Other Habitat Alterations Low 1998 Yes Unassessed Project Habitat Modification Siltation Medium 1998 Yes UnassessedCoal Run (Stream Project Code: 36858, SWP: 20F) Unassessed970902-1300-ALF Project 1.95 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes 970903-1000-ALF 2.53 Unassessed Project Construction Siltation Medium 1998 Yes Unassessed Project Construction Suspended Solids Medium 1998 Yes Unassessed Project Construction Turbidity Medium 1998 Yes UnassessedCoal Run, UntProject (Stream Code: 36859, SWP: 20F) Unassessed970903-0900-ALF Project 1.18 Unassessed Project Golf Courses Nutrients Medium 1998 Yes Land Development Siltation Medium 1998 Yes Coal Run, Unt (Stream Code: 36860, SWP: 20F) Unassessed Project Unassessed Project Unassessed Project Unassessed Project

Unassessed Project

Unassessed Project Unassessed Project

Unassessed Project

D-21 Appendix D: Year 2000 303(d) List OF STREAMS AND RIVERS IN WATERSHED 20F, CHARTIERS CREEK WATERSHED

Segment ID Mile Data Source Source of Impairment Cause of Impairment Priority Listed by 2002? TMDL 970902-1300-ALF 1.08 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes Coal Run, Unt (Stream Code: 36861, SWP: 20F) 970902-1300-ALF 0.8 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes Dolphin Run (Stream Code: 36832, SWP: 20F) 970819-0930-ALF 2.21 Unassessed Project Acid Mine Drainage Salinity/TDS/Chlorides Medium 1998 Yes Acid Mine Drainage Turbidity Medium 1998 Yes Surface Mining Salinity/TDS/Chlorides Medium 1998 Yes Surface Mining Turbidity Medium 1998 Yes Fink Run (Stream Code: 63303, SWP: 20F) 971203-1200-ALF 1.75 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Combined Sewer Overflow Organic Enrichment/Low D.O. Medium 1998 Yes

Urban Runoff/Storm Nutrients Medium 1998 Yes Unassessed Project Fishing Run (Stream Code: 36833, SWP: 20F) 970819-0930-ALF 2.8 Unassessed Project Acid Mine Drainage Salinity/TDS/Chlorides Medium 1998 Yes Unassessed Project Acid Mine Drainage Turbidity Medium 1998 Yes Surface Mining Salinity/TDS/Chlorides Medium 1998 Yes Surface Mining Turbidity Medium 1998 Yes UnassessedFishing Run, Project Unt (Stream Code: 36834, SWP: 20F) Unassessed970819-0930-ALF Project 0.67 Unassessed Project Acid Mine Drainage Salinity/TDS/Chlorides Medium 1998 Yes Unassessed Project Acid Mine Drainage Turbidity Medium 1998 Yes Surface Mining Salinity/TDS/Chlorides Medium 1998 Yes Surface Mining Turbidity Medium 1998 Yes UnassessedGeorges Run Project (Stream Code: 36795, SWP: 20F) 971125-0830-ALF 1.34 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Unassessed Project Acid Mine Drainage Salinity/TDS/Chlorides Medium 1998 Yes Acid Mine Drainage Siltation Medium 1998 Yes Acid Mine Drainage Suspended Solids Medium 1998 Yes Georges Run (Stream Code: 37111, SWP: 20F) Unassessed970926-1150-TV Project 1.84 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Unassessed Project Acid Mine Drainage Suspended Solids Medium 1998 Yes Unassessed Project Urban Runoff/Storm Siltation Medium 1998 Yes

UnassessedGeorges Run, Project Unt (Stream Code: 36796, SWP: 20F) Unassessed971125-0830-ALF Project 0.41 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Unassessed Project Acid Mine Drainage Salinity/TDS/Chlorides Medium 1998 Yes Sewers Acid Mine Drainage Siltation Medium 1998 Yes Acid Mine Drainage Suspended Solids Medium 1998 Yes UnassessedGeorges Run, Project Unt (Stream Code: 37112, SWP: 20F) Unassessed970926-1150-TV Project 0.84 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Unassessed Project Acid Mine Drainage Suspended Solids Medium 1998 Yes

Urban Runoff/Storm Siltation Medium 1998 Yes Unassessed Project Georges Run, Unt (Stream Code: 37113, SWP: 20F) Unassessed970926-1150-TV Project 0.71 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Acid Mine Drainage Suspended Solids Medium 1998 Yes

Unassessed Project Unassessed Project Unassessed Project

Unassessed Project

Unassessed Project Sewers

Unassessed Project

Sewers

D-22 Appendix D: Year 2000 303(d) List OF STREAMS AND RIVERS IN WATERSHED 20F, CHARTIERS CREEK WATERSHED

Segment ID Mile Data Source Source of Impairment Cause of Impairment Priority Listed by 2002? TMDL

Urban Runoff/Storm Siltation Medium 1998 Yes

Georges Run, Unt (Stream Code: 37114, SWP: 20F) 970926-1150-TV 0.4 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Acid Mine Drainage Suspended Solids Medium 1998 Yes

Urban Runoff/Storm Siltation Medium 1998 Yes

Graesers Run (Stream Code: 36820, SWP: 20F) 971002-1150-ALF 1.87 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Habitat Modification Siltation Medium 1998 Yes Habitat Modification Turbidity Medium 1998 Yes Graesers Run, Unt (Stream Code: 36821, SWP: 20F) 971002-1150-ALF 1.53 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Unassessed Project Habitat Modification Siltation Medium 1998 Yes Habitat Modification Turbidity Medium 1998 Yes Half Crown Run (Stream Code: 63300, SWP: 20F) 971124-1500-RB 2.81 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Unassessed Project Natural Sources Siltation Medium 1998 Yes Half Crown Run, Unt (Stream Code: 63301, SWP: 20F) Unassessed971124-1500-RB Project 0.74 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Natural Sources Siltation Medium 1998 Yes Lintons Run (Stream Code: 63292, SWP: 20F) 971126-1130-RB 0.74 Unassessed Project Source Unknown Cause Unknown Low 1998 Yes UnassessedLittle Chartiers Project Creek (Stream Code: 36943, SWP: 20F) Unassessed971022-0930-TV Project 0.79 Unassessed Project Land Development Siltation Medium 1998 Yes Sewers Removal of Vegetation Nutrients Medium 1998 Yes Removal of Vegetation Siltation Medium 1998 Yes Unassessed Project Unassessed Project Small Residential Nutrients Medium 1998 Yes

Sewers Unassessed Project Small Residential Siltation Medium 1998 Yes 971022-1210-TV 1.56 Unassessed Project Golf Courses Siltation Medium 1998 Yes Unassessed Project Land Development Siltation Medium 1998 Yes

Small Residential Nutrients Medium 1998 Yes

971205-1230-ALF 7.38 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Unassessed Project Habitat Modification Unknown Toxicity High 1998 Yes Unassessed Project Urban Runoff/Storm Nutrients Medium 1998 Yes Unassessed Project Little Chartiers Creek, Unt (Stream Code: 36944, SWP: 20F) 971204-1500-ALF 1.75 Unassessed Project Combined Sewer Overflow Organic Enrichment/Low D.O. Medium 1998 Yes Unassessed Project Habitat Modification Siltation Medium 1998 Yes Little Chartiers Creek, Unt (Stream Code: 36945, SWP: 20F) 971205-1230-ALF 2.13 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Unassessed Project Habitat Modification Unknown Toxicity High 1998 Yes

Unassessed Project

Unassessed Project Runoff Unassessed Project Runoff

Unassessed Project

Runoff Unassessed Project

Sewers

D-23 Appendix D: Year 2000 303(d) List OF STREAMS AND RIVERS IN WATERSHED 20F, CHARTIERS CREEK WATERSHED

Segment ID Mile Data Source Source of Impairment Cause of Impairment Priority Listed by 2002? TMDL

Urban Runoff/Storm Nutrients Medium 1998 Yes

Little Chartiers Creek, Unt (Stream Code: 36946, SWP: 20F) 971205-1230-ALF 0.61 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Habitat Modification Unknown Toxicity High 1998 Yes

Urban Runoff/Storm Nutrients Medium 1998 Yes

Little Chartiers Creek, Unt (Stream Code: 36947, SWP: 20F) 971205-1230-ALF 1.33 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Habitat Modification Unknown Toxicity High 1998 Yes

Urban Runoff/Storm Nutrients Medium 1998 Yes

UnassessedLittle Chartiers Project Creek, Unt (Stream Code: 36954, SWP: 20F) 971205-1230-ALF 0.37 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Habitat Modification Unknown Toxicity High 1998 Yes

Unassessed Project Urban Runoff/Storm Nutrients Medium 1998 Yes

UnassessedLittle Chartiers Project Creek, Unt (Stream Code: 36955, SWP: 20F) 971205-1230-ALF 0.7 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Habitat Modification Unknown Toxicity High 1998 Yes

Unassessed Project Urban Runoff/Storm Nutrients Medium 1998 Yes Sewers UnassessedLittle Chartiers Project Creek, Unt (Stream Code: 36956, SWP: 20F) 971010-1400-TV 1.87 Unassessed Project Construction Siltation Medium 1998 Yes

Urban Runoff/Storm Siltation Medium 1998 Yes Unassessed Project Little Chartiers Creek, Unt (Stream Code: 36957, SWP: 20F) Sewers Unassessed971010-1400-TV Project 0.86 Unassessed Project Construction Siltation Medium 1998 Yes

Urban Runoff/Storm Siltation Medium 1998 Yes

UnassessedLittle Chartiers Project Creek, Unt (Stream Code: 36958, SWP: 20F) 971010-1400-TV 0.42 Unassessed Project Construction Siltation Medium 1998 Yes Sewers Unassessed Project Urban Runoff/Storm Siltation Medium 1998 Yes

Little Chartiers Creek, Unt (Stream Code: 36959, SWP: 20F) 971205-1230-ALF 0.67 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Unassessed Project Habitat Modification Unknown Toxicity High 1998 Yes Sewers Urban Runoff/Storm Nutrients Medium 1998 Yes

Little Chartiers Creek, Unt (Stream Code: 36960, SWP: 20F) Unassessed971205-1345-ALF Project 2.77 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Habitat Modification Siltation Medium 1998 Yes Sewers

Unassessed Project Sewers

Unassessed Project

Unassessed Project Sewers

Unassessed Project Sewers

Sewers

D-24 Appendix D: Year 2000 303(d) List OF STREAMS AND RIVERS IN WATERSHED 20F, CHARTIERS CREEK WATERSHED

Segment ID Mile Data Source Source of Impairment Cause of Impairment Priority Listed by 2002? TMDL

Urban Runoff/Storm Nutrients Medium 1998 Yes

Little Chartiers Creek, Unt (Stream Code: 36962, SWP: 20F) 971205-1345-ALF 0.57 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Habitat Modification Siltation Medium 1998 Yes

Urban Runoff/Storm Nutrients Medium 1998 Yes

Little Chartiers Creek, Unt (Stream Code: 36963, SWP: 20F) 971205-1345-ALF 0.32 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Habitat Modification Siltation Medium 1998 Yes

Urban Runoff/Storm Nutrients Medium 1998 Yes

UnassessedLittle Chartiers Project Creek, Unt (Stream Code: 36964, SWP: 20F) 971205-1230-ALF 0.81 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Habitat Modification Unknown Toxicity High 1998 Yes

Unassessed Project Urban Runoff/Storm Nutrients Medium 1998 Yes

UnassessedLittle Chartiers Project Creek, Unt (Stream Code: 36965, SWP: 20F) 971205-1345-ALF 2.4 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Habitat Modification Siltation Medium 1998 Yes

Unassessed Project Urban Runoff/Storm Nutrients Medium 1998 Yes Sewers UnassessedLittle Chartiers Project Creek, Unt (Stream Code: 36966, SWP: 20F) 971205-1345-ALF 0.37 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Habitat Modification Siltation Medium 1998 Yes

Unassessed Project Urban Runoff/Storm Nutrients Medium 1998 Yes Sewers UnassessedLittle Chartiers Project Creek, Unt (Stream Code: 36967, SWP: 20F) 971205-1345-ALF 0.46 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Habitat Modification Siltation Medium 1998 Yes

Unassessed Project Urban Runoff/Storm Nutrients Medium 1998 Yes Sewers UnassessedLittle Chartiers Project Creek, Unt (Stream Code: 36968, SWP: 20F) 971205-1345-ALF 1.15 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Habitat Modification Siltation Medium 1998 Yes

Unassessed Project Urban Runoff/Storm Nutrients Medium 1998 Yes Sewers UnassessedLittle Chartiers Project Creek, Unt (Stream Code: 36969, SWP: 20F) 971205-1345-ALF 0.23 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Habitat Modification Siltation Medium 1998 Yes

Unassessed Project Urban Runoff/Storm Nutrients Medium 1998 Yes Sewers Unassessed Project

Unassessed Project Sewers Unassessed Project

Unassessed Project Sewers Unassessed Project

Sewers

Sewers

D-25 Appendix D: Year 2000 303(d) List OF STREAMS AND RIVERS IN WATERSHED 20F, CHARTIERS CREEK WATERSHED

Segment ID Mile Data Source Source of Impairment Cause of Impairment Priority Listed by 2002? TMDL Little Chartiers Creek, Unt (Stream Code: 36970, SWP: 20F) 971007-1320-TV 1.28 Unassessed Project Crop Related Agric Nutrients Medium 1998 Yes Grazing Related Agric Nutrients Medium 1998 Yes Land Development Siltation Medium 1998 Yes 971008-1330-TV 1.59 Unassessed Project Other Nutrients Medium 1998 Yes

Urban Runoff/Storm Nutrients Medium 1998 Yes

Little Chartiers Creek, Unt (Stream Code: 36971, SWP: 20F) 971007-1320-TV 0.06 Unassessed Project Crop Related Agric Nutrients Medium 1998 Yes Grazing Related Agric Nutrients Medium 1998 Yes Land Development Siltation Medium 1998 Yes Little Chartiers Creek, Unt (Stream Code: 36972, SWP: 20F) 971008-1030-TV 2.44 Unassessed Project Construction Siltation Medium 1998 Yes

Urban Runoff/Storm Nutrients Medium 1998 Yes Unassessed Project UnassessedLittle Chartiers Project Creek, Unt (Stream Code: 36973, SWP: 20F) 971008-1030-TV 1.07 Unassessed Project Construction Siltation Medium 1998 Yes

Unassessed Project Urban Runoff/Storm Nutrients Medium 1998 Yes Little Chartiers Creek, Unt (Stream Code: 36974, SWP: 20F) 971008-1030-TV 0.3 Unassessed Project Construction Siltation Medium 1998 Yes Unassessed Project Unassessed Project Urban Runoff/Storm Nutrients Medium 1998 Yes Little Chartiers Creek, Unt (Stream Code: 36976, SWP: 20F) 971008-1330-TV 0.41 Unassessed Project Other Nutrients Medium 1998 Yes Unassessed Project Urban Runoff/Storm Nutrients Medium 1998 Yes

SewersLittle Chartiers Creek, Unt (Stream Code: 36989, SWP: 20F) 971009-1050-TV 1.43 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Unassessed Project Acid Mine Drainage Suspended Solids Medium 1998 Yes 971009-1245-TV 2.26 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Acid Mine Drainage Suspended Solids Medium 1998 Yes

Urban Runoff/Storm Siltation Medium 1998 Yes Unassessed Project Little Chartiers Creek, Unt (Stream Code: 37001, SWP: 20F) Sewers971009-1050-TV 1.82 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Acid Mine Drainage Suspended Solids Medium 1998 Yes Little Chartiers Creek, Unt (Stream Code: 37002, SWP: 20F) Unassessed971009-1050-TV Project 0.43 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Acid Mine Drainage Suspended Solids Medium 1998 Yes SewersLittle Chartiers Creek, Unt (Stream Code: 37003, SWP: 20F) 971009-1050-TV 0.74 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Unassessed Project Acid Mine Drainage Suspended Solids Medium 1998 Yes Little Chartiers Creek, Unt (Stream Code: 37004, SWP: 20F) Unassessed971009-1245-TV Project 1.46 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Sewers Unassessed Project

Sewers Unassessed Project

Unassessed Project

Unassessed Project Sewers

D-26 Appendix D: Year 2000 303(d) List OF STREAMS AND RIVERS IN WATERSHED 20F, CHARTIERS CREEK WATERSHED

Segment ID Mile Data Source Source of Impairment Cause of Impairment Priority Listed by 2002? TMDL Acid Mine Drainage Suspended Solids Medium 1998 Yes

Urban Runoff/Storm Siltation Medium 1998 Yes

Little Chartiers Creek, Unt (Stream Code: 37005, SWP: 20F) 971009-1245-TV 0.53 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Acid Mine Drainage Suspended Solids Medium 1998 Yes

Urban Runoff/Storm Siltation Medium 1998 Yes

Little Chartiers Creek, Unt (Stream Code: 37006, SWP: 20F) 971009-1245-TV 0.46 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Acid Mine Drainage Suspended Solids Medium 1998 Yes

Unassessed Project Urban Runoff/Storm Siltation Medium 1998 Yes

UnassessedLittle Chartiers Project Creek, Unt (Stream Code: 37007, SWP: 20F) 971009-1245-TV 0.95 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Acid Mine Drainage Suspended Solids Medium 1998 Yes

Unassessed Project Urban Runoff/Storm Siltation Medium 1998 Yes

UnassessedLittle Chartiers Project Creek, Unt (Stream Code: 37008, SWP: 20F) 971009-1245-TV 0.44 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Acid Mine Drainage Suspended Solids Medium 1998 Yes

Unassessed Project Urban Runoff/Storm Siltation Medium 1998 Yes Sewers UnassessedLittle Chartiers Project Creek, Unt (Stream Code: 37009, SWP: 20F) 971009-1245-TV 0.25 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Acid Mine Drainage Suspended Solids Medium 1998 Yes

Unassessed Project Urban Runoff/Storm Siltation Medium 1998 Yes Sewers UnassessedLittle Chartiers Project Creek, Unt (Stream Code: 37015, SWP: 20F) 971009-1050-TV 0.74 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Acid Mine Drainage Suspended Solids Medium 1998 Yes Little Chartiers Creek, Unt (Stream Code: 37024, SWP: 20F) Unassessed971022-0930-TV Project 0.77 Unassessed Project Land Development Siltation Medium 1998 Yes Removal of Vegetation Nutrients Medium 1998 Yes Sewers Unassessed Project Removal of Vegetation Siltation Medium 1998 Yes

Small Residential Nutrients Medium 1998 Yes

Unassessed Project Small Residential Siltation Medium 1998 Yes Sewers Unassessed Project Little Chartiers Creek, Unt (Stream Code: 37025, SWP: 20F) 971022-0930-TV 0.28 Unassessed Project Land Development Siltation Medium 1998 Yes Removal of Vegetation Nutrients Medium 1998 Yes Unassessed Project Removal of Vegetation Siltation Medium 1998 Yes Sewers Unassessed Project Unassessed Project

Unassessed Project Sewers Unassessed Project

Unassessed Project Unassessed Project

Runoff

Runoff

D-27 Appendix D: Year 2000 303(d) List OF STREAMS AND RIVERS IN WATERSHED 20F, CHARTIERS CREEK WATERSHED

Segment ID Mile Data Source Source of Impairment Cause of Impairment Priority Listed by 2002? TMDL

Small Residential Nutrients Medium 1998 Yes

Small Residential Siltation Medium 1998 Yes

Little Chartiers Creek, Unt (Stream Code: 37026, SWP: 20F) 971022-0930-TV 0.88 Unassessed Project Land Development Siltation Medium 1998 Yes Removal of Vegetation Nutrients Medium 1998 Yes Removal of Vegetation Siltation Medium 1998 Yes

Small Residential Nutrients Medium 1998 Yes

Small Residential Siltation Medium 1998 Yes Unassessed Project Little Chartiers Creek, Unt (Stream Code: 37027, SWP: 20F) 971022-0930-TV 0.2 Unassessed Project Land Development Siltation Medium 1998 Yes Unassessed Project Removal of Vegetation Nutrients Medium 1998 Yes Removal of Vegetation Siltation Medium 1998 Yes

Small Residential Nutrients Medium 1998 Yes Unassessed Project Unassessed Project Small Residential Siltation Medium 1998 Yes Unassessed Project Little Chartiers Creek, Unt (Stream Code: 37028, SWP: 20F) Runoff971022-1210-TV 0.36 Unassessed Project Golf Courses Siltation Medium 1998 Yes Unassessed Project Land Development Siltation Medium 1998 Yes

Runoff Small Residential Nutrients Medium 1998 Yes

UnassessedLittle Chartiers Project Creek, Unt (Stream Code: 37029, SWP: 20F) Unassessed971022-1210-TV Project 0.36 Unassessed Project Golf Courses Siltation Medium 1998 Yes Land Development Siltation Medium 1998 Yes Unassessed Project Small Residential Nutrients Medium 1998 Yes Runoff UnassessedLittle Chartiers Project Creek, Unt (Stream Code: 63866, SWP: 20F) 971204-1500-ALF 0.29 Unassessed Project Combined Sewer Overflow Organic Enrichment/Low D.O. Medium 1998 Yes Runoff Habitat Modification Siltation Medium 1998 Yes McLaughlin Run (Stream Code: 36811, SWP: 20F) Unassessed971001-1200-ALF Project 0.14 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Habitat Modification Other Habitat Alterations Low 1998 Yes Unassessed Project Habitat Modification Siltation Medium 1998 Yes 971001-1300-ALF 0.77 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Habitat Modification Siltation Medium 1998 Yes Runoff971001-1430-ALF 2.67 Unassessed Project Habitat Modification Siltation Medium 1998 Yes Unassessed Project Habitat Modification Turbidity Medium 1998 Yes Hydromodification Water/Flow Variability Low 1998 Yes Runoff Unassessed971002-0945-ALF Project 0.66 Unassessed Project Habitat Modification Flow Alterations Low 1998 Yes

Unassessed Project Runoff Unassessed Project Unassessed Project

Unassessed Project Runoff Unassessed Project Unassessed Project

D-28 Appendix D: Year 2000 303(d) List OF STREAMS AND RIVERS IN WATERSHED 20F, CHARTIERS CREEK WATERSHED

Segment ID Mile Data Source Source of Impairment Cause of Impairment Priority Listed by 2002? TMDL Habitat Modification Other Habitat Alterations Low 1998 Yes Hydromodification Flow Alterations Low 1998 Yes Hydromodification Other Habitat Alterations Low 1998 Yes 971002-1150-ALF 0.68 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Habitat Modification Siltation Medium 1998 Yes Habitat Modification Turbidity Medium 1998 Yes McLaughlin Run, Unt (Stream Code: 36812, SWP: 20F) 971001-1430-ALF 0.41 Unassessed Project Habitat Modification Siltation Medium 1998 Yes Habitat Modification Turbidity Medium 1998 Yes Hydromodification Water/Flow Variability Low 1998 Yes McLaughlin Run, Unt (Stream Code: 36813, SWP: 20F) 971001-1430-ALF 0.29 Unassessed Project Habitat Modification Siltation Medium 1998 Yes Habitat Modification Turbidity Medium 1998 Yes Hydromodification Water/Flow Variability Low 1998 Yes UnassessedMcLaughlin ProjectRun, Unt (Stream Code: 36814, SWP: 20F) Unassessed971001-1430-ALF Project 0.38 Unassessed Project Habitat Modification Siltation Medium 1998 Yes Unassessed Project Habitat Modification Turbidity Medium 1998 Yes Hydromodification Water/Flow Variability Low 1998 Yes UnassessedMcLaughlin ProjectRun, Unt (Stream Code: 36815, SWP: 20F) Unassessed971001-1200-ALF Project 1.16 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Habitat Modification Other Habitat Alterations Low 1998 Yes Habitat Modification Siltation Medium 1998 Yes UnassessedMcLaughlin ProjectRun, Unt (Stream Code: 36816, SWP: 20F) Unassessed971001-1200-ALF Project 0.83 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Habitat Modification Other Habitat Alterations Low 1998 Yes Habitat Modification Siltation Medium 1998 Yes UnassessedMcLaughlin ProjectRun, Unt (Stream Code: 36817, SWP: 20F) Unassessed971001-1200-ALF Project 0.22 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Habitat Modification Other Habitat Alterations Low 1998 Yes Habitat Modification Siltation Medium 1998 Yes UnassessedMcLaughlin ProjectRun, Unt (Stream Code: 36818, SWP: 20F) Unassessed971002-0945-ALF Project 1.38 Unassessed Project Habitat Modification Flow Alterations Low 1998 Yes Habitat Modification Other Habitat Alterations Low 1998 Yes Hydromodification Flow Alterations Low 1998 Yes Unassessed Project Hydromodification Other Habitat Alterations Low 1998 Yes UnassessedMcLaughlin ProjectRun, Unt (Stream Code: 36819, SWP: 20F) 971002-0945-ALF 0.22 Unassessed Project Habitat Modification Flow Alterations Low 1998 Yes Habitat Modification Other Habitat Alterations Low 1998 Yes Unassessed Project Hydromodification Flow Alterations Low 1998 Yes Unassessed Project Hydromodification Other Habitat Alterations Low 1998 Yes McLaughlin Run, Unt (Stream Code: 36822, SWP: 20F) 971002-1045-ALF 0.46 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Unassessed Project Habitat Modification Siltation Medium 1998 Yes Unassessed Project Habitat Modification Turbidity Medium 1998 Yes McPherson Creek (Stream Code: 36940, SWP: 20F) 971022-0930-ALF 1.32 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Unassessed Project Habitat Modification Other Habitat Alterations Low 1998 Yes UnassessedMcPherson Creek,Project Unt (Stream Code: 36941, SWP: 20F) Unassessed971022-0930-ALF Project 0.54 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Habitat Modification Other Habitat Alterations Low 1998 Yes McPherson Creek, Unt (Stream Code: 36942, SWP: 20F) Unassessed Project Unassessed Project Unassessed Project

Unassessed Project Unassessed Project

Unassessed Project

Unassessed Project

D-29 Appendix D: Year 2000 303(d) List OF STREAMS AND RIVERS IN WATERSHED 20F, CHARTIERS CREEK WATERSHED

Segment ID Mile Data Source Source of Impairment Cause of Impairment Priority Listed by 2002? TMDL 971022-0930-ALF 0.66 Unassessed Project Habitat Modification Nutrients Medium 1998 Yes Habitat Modification Other Habitat Alterations Low 1998 Yes Millers Run (Stream Code: 36827, SWP: 20F) 970723-0840-TV 1.3 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes 970723-1000-TV 1.08 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes

Urban Runoff/Storm Nutrients Medium 1998 Yes

Urban Runoff/Storm Siltation Medium 1998 Yes

970723-1200-TV 0.49 Unassessed Project Acid Mine Drainage Salinity/TDS/Chlorides Medium 1998 Yes Agriculture Nutrients Medium 1998 Yes Unassessed Project Agriculture Siltation Medium 1998 Yes

Urban Runoff/Storm Nutrients Medium 1998 Yes Unassessed Project 970723-1315-TV 1 Unassessed Project Agriculture Nutrients Medium 1998 Yes Unassessed Project Agriculture Siltation Medium 1998 Yes 970818-1300-ALF 0.5 Unassessed Project Habitat Modification Siltation Medium 1998 Yes Unassessed Project Habitat Modification Turbidity Medium 1998 Yes 970819-0830-ALF 0.58 Unassessed Project Construction Siltation Medium 1998 Yes Construction Turbidity Medium 1998 Yes Unassessed Project Habitat Modification Siltation Medium 1998 Yes Habitat Modification Turbidity Medium 1998 Yes 970819-0930-ALF 4.36 Unassessed Project Acid Mine Drainage Salinity/TDS/Chlorides Medium 1998 Yes Unassessed Project Acid Mine Drainage Turbidity Medium 1998 Yes Unassessed Project Surface Mining Salinity/TDS/Chlorides Medium 1998 Yes Surface Mining Turbidity Medium 1998 Yes Unassessed970822-0920-ALF Project 2.15 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes Agriculture Turbidity Medium 1998 Yes Sewers Unassessed Project Urban Runoff/Storm Siltation Medium 1998 Yes Unassessed Project Sewers970822-1100-ALF 1.04 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Unassessed Project Acid Mine Drainage Suspended Solids Medium 1998 Yes Unassessed Project On site Wastewater Nutrients Medium 1998 Yes UnassessedMillers Run, Project Unt (Stream Code: 36828, SWP: 20F) 970819-0930-ALF 1.21 Unassessed Project Acid Mine Drainage Salinity/TDS/Chlorides Medium 1998 Yes Unassessed Project Acid Mine Drainage Turbidity Medium 1998 Yes Sewers Unassessed Project Surface Mining Salinity/TDS/Chlorides Medium 1998 Yes Unassessed Project Surface Mining Turbidity Medium 1998 Yes Millers Run, Unt (Stream Code: 36829, SWP: 20F) Unassessed970819-0930-ALF Project 2.9 Unassessed Project Acid Mine Drainage Salinity/TDS/Chlorides Medium 1998 Yes Unassessed Project Acid Mine Drainage Turbidity Medium 1998 Yes Surface Mining Salinity/TDS/Chlorides Medium 1998 Yes Unassessed Project Surface Mining Turbidity Medium 1998 Yes Millers Run, Unt (Stream Code: 36830, SWP: 20F)

Unassessed Project Unassessed Project

Unassessed Project Unassessed Project Unassessed Project

Sewers Unassessed Project Unassessed Project Unassessed Project

D-30 Appendix D: Year 2000 303(d) List OF STREAMS AND RIVERS IN WATERSHED 20F, CHARTIERS CREEK WATERSHED

Segment ID Mile Data Source Source of Impairment Cause of Impairment Priority Listed by 2002? TMDL 970819-0930-ALF 0.67 Unassessed Project Acid Mine Drainage Salinity/TDS/Chlorides Medium 1998 Yes Acid Mine Drainage Turbidity Medium 1998 Yes Surface Mining Salinity/TDS/Chlorides Medium 1998 Yes Surface Mining Turbidity Medium 1998 Yes Millers Run, Unt (Stream Code: 36831, SWP: 20F) 970819-0930-ALF 1.78 Unassessed Project Acid Mine Drainage Salinity/TDS/Chlorides Medium 1998 Yes Acid Mine Drainage Turbidity Medium 1998 Yes Surface Mining Salinity/TDS/Chlorides Medium 1998 Yes Surface Mining Turbidity Medium 1998 Yes Millers Run, Unt (Stream Code: 36835, SWP: 20F) 970822-1100-ALF 0.62 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Acid Mine Drainage Suspended Solids Medium 1998 Yes On site Wastewater Nutrients Medium 1998 Yes Millers Run, Unt (Stream Code: 36839, SWP: 20F) 970818-1300-ALF 0.75 Unassessed Project Habitat Modification Siltation Medium 1998 Yes Unassessed Project Habitat Modification Turbidity Medium 1998 Yes UnassessedMillers Run, Project Unt (Stream Code: 36840, SWP: 20F) Unassessed970818-1300-ALF Project 1.54 Unassessed Project Habitat Modification Siltation Medium 1998 Yes Habitat Modification Turbidity Medium 1998 Yes Millers Run, Unt (Stream Code: 36841, SWP: 20F) Unassessed970819-0830-ALF Project 1.64 Unassessed Project Construction Siltation Medium 1998 Yes Unassessed Project Construction Turbidity Medium 1998 Yes Unassessed Project Habitat Modification Siltation Medium 1998 Yes Habitat Modification Turbidity Medium 1998 Yes Millers Run, Unt (Stream Code: 36842, SWP: 20F) Unassessed970819-0830-ALF Project 0.77 Unassessed Project Construction Siltation Medium 1998 Yes Unassessed Project Construction Turbidity Medium 1998 Yes Habitat Modification Siltation Medium 1998 Yes Habitat Modification Turbidity Medium 1998 Yes UnassessedMillers Run, Project Unt (Stream Code: 36843, SWP: 20F) 970723-1000-TV 1.38 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes Unassessed Project Urban Runoff/Storm Nutrients Medium 1998 Yes

Unassessed Project Unassessed Project Urban Runoff/Storm Siltation Medium 1998 Yes Unassessed Project Millers Run, Unt (Stream Code: 36844, SWP: 20F) 970723-1000-TV 0.42 Unassessed Project Agriculture Nutrients Medium 1998 Yes Unassessed Project Agriculture Siltation Medium 1998 Yes Unassessed Project Unassessed Project Urban Runoff/Storm Nutrients Medium 1998 Yes

Unassessed Project Urban Runoff/Storm Siltation Medium 1998 Yes

Unassessed970822-1010-TV Project 2.33 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes Agriculture Turbidity Medium 1998 Yes UnassessedMillers Run, Project Unt (Stream Code: 36845, SWP: 20F)

Unassessed Project

Unassessed Project

Sewers Unassessed Project

Sewers Unassessed Project Unassessed Project

Sewers

Sewers

D-31 Appendix D: Year 2000 303(d) List OF STREAMS AND RIVERS IN WATERSHED 20F, CHARTIERS CREEK WATERSHED

Segment ID Mile Data Source Source of Impairment Cause of Impairment Priority Listed by 2002? TMDL 970822-1010-TV 0.56 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes Agriculture Turbidity Medium 1998 Yes Millers Run, Unt (Stream Code: 36846, SWP: 20F) 970822-1010-TV 0.77 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes Agriculture Turbidity Medium 1998 Yes Millers Run, Unt (Stream Code: 36847, SWP: 20F) 970723-1200-TV 1.68 Unassessed Project Acid Mine Drainage Salinity/TDS/Chlorides Medium 1998 Yes Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes

Urban Runoff/Storm Nutrients Medium 1998 Yes

Millers Run, Unt (Stream Code: 36848, SWP: 20F) Unassessed970723-1200-TV Project 0.5 Unassessed Project Acid Mine Drainage Salinity/TDS/Chlorides Medium 1998 Yes Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes

Unassessed Project Urban Runoff/Storm Nutrients Medium 1998 Yes Unassessed Project Millers Run, Unt (Stream Code: 36849, SWP: 20F) 970723-1200-TV 0.37 Unassessed Project Acid Mine Drainage Salinity/TDS/Chlorides Medium 1998 Yes Unassessed Project Agriculture Nutrients Medium 1998 Yes Unassessed Project Agriculture Siltation Medium 1998 Yes

Unassessed Project Urban Runoff/Storm Nutrients Medium 1998 Yes

Millers Run, Unt (Stream Code: 36850, SWP: 20F) 970723-1315-TV 1.02 Unassessed Project Agriculture Nutrients Medium 1998 Yes Unassessed Project Agriculture Siltation Medium 1998 Yes UnassessedMillers Run, Project Unt (Stream Code: 36851, SWP: 20F) 970822-0830-ALF 1.74 Unassessed Project Agriculture Nutrients Medium 1998 Yes Unassessed Project Agriculture Siltation Medium 1998 Yes Millers Run, Unt (Stream Code: 36852, SWP: 20F) 970822-0830-ALF 0.99 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes UnassessedMillers Run, Project Unt (Stream Code: 36853, SWP: 20F) Sewers Unassessed970822-0830-ALF Project 0.66 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes UnassessedMillers Run, Project Unt (Stream Code: 36854, SWP: 20F) 970822-0920-ALF 1.07 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes Agriculture Turbidity Medium 1998 Yes Unassessed Project Sewers Urban Runoff/Storm Siltation Medium 1998 Yes

UnassessedMillers Run, Project Unt (Stream Code: 36855, SWP: 20F) 970822-0920-ALF 0.6 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes Unassessed Project Agriculture Turbidity Medium 1998 Yes Sewers Unassessed Project

Unassessed Project Unassessed Project

Unassessed Project

Unassessed Project Unassessed Project

Sewers

D-32 Appendix D: Year 2000 303(d) List OF STREAMS AND RIVERS IN WATERSHED 20F, CHARTIERS CREEK WATERSHED

Segment ID Mile Data Source Source of Impairment Cause of Impairment Priority Listed by 2002? TMDL

Urban Runoff/Storm Siltation Medium 1998 Yes

Millers Run, Unt (Stream Code: 36856, SWP: 20F) 970822-0920-ALF 0.43 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes Agriculture Turbidity Medium 1998 Yes

Urban Runoff/Storm Siltation Medium 1998 Yes

Millers Run, Unt (Stream Code: 36857, SWP: 20F) 970822-0920-ALF 0.57 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes Agriculture Turbidity Medium 1998 Yes

Unassessed Project Urban Runoff/Storm Siltation Medium 1998 Yes Millers Run, Unt (Stream Code: 63760, SWP: 20F) 970822-0920-ALF 0.72 Unassessed Project Agriculture Nutrients Medium 1998 Yes Unassessed Project Agriculture Siltation Medium 1998 Yes Unassessed Project Agriculture Turbidity Medium 1998 Yes

Unassessed Project Urban Runoff/Storm Siltation Medium 1998 Yes

Millers Run, Unt (Stream Code: 63761, SWP: 20F) 970822-0920-ALF 0.43 Unassessed Project Agriculture Nutrients Medium 1998 Yes Unassessed Project Agriculture Siltation Medium 1998 Yes Sewers Unassessed Project Agriculture Turbidity Medium 1998 Yes

Unassessed Project Urban Runoff/Storm Siltation Medium 1998 Yes North Branch Robinson Run (Stream Code: 63294, SWP: 20F) 971123-1115-RB 2.85 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Unassessed Project Acid Mine Drainage Siltation Medium 1998 Yes Sewers Unassessed971124-1300-RB Project 1.06 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes 971124-1430-RB 1.12 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Unassessed971126-1000-RB Project 0.78 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Natural Sources Siltation Medium 1998 Yes 971126-1030-RB 1.05 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes 971203-1200-ALF 0.94 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Unassessed Project Combined Sewer Overflow Organic Enrichment/Low D.O. Medium 1998 Yes Sewers Unassessed Project Urban Runoff/Storm Nutrients Medium 1998 Yes Unassessed Project North Branch Robinson Run, Unt (Stream Code: 63295, SWP: 20F) 971124-1330-RB 2.23 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes North Branch Robinson Run, Unt (Stream Code: 63296, SWP: 20F) Unassessed971124-1400-RB Project 1.45 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes SewersNorth Branch Robinson Run, Unt (Stream Code: 63297, SWP: 20F) 971124-1430-RB 1.85 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes North Branch Robinson Run, Unt (Stream Code: 63298, SWP: 20F) Unassessed Project

Unassessed Project Sewers Unassessed Project

Sewers

D-33 Appendix D: Year 2000 303(d) List OF STREAMS AND RIVERS IN WATERSHED 20F, CHARTIERS CREEK WATERSHED

Segment ID Mile Data Source Source of Impairment Cause of Impairment Priority Listed by 2002? TMDL 971124-1430-RB 0.62 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes North Branch Robinson Run, Unt (Stream Code: 63299, SWP: 20F) 971124-1430-RB 1.8 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes North Branch Robinson Run, Unt (Stream Code: 63302, SWP: 20F) 971126-1000-RB 2.06 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Natural Sources Siltation Medium 1998 Yes Painters Run (Stream Code: 36803, SWP: 20F) 971003-1100-ALF 1.07 Unassessed Project Habitat Modification Siltation Medium 1998 Yes Habitat Modification Turbidity Medium 1998 Yes 971003-1230-ALF 2.67 Unassessed Project Habitat Modification Siltation Medium 1998 Yes Habitat Modification Suspended Solids Medium 1998 Yes Habitat Modification Turbidity Medium 1998 Yes Painters Run, Unt (Stream Code: 36804, SWP: 20F) 971003-1230-ALF 0.28 Unassessed Project Habitat Modification Siltation Medium 1998 Yes Habitat Modification Suspended Solids Medium 1998 Yes Habitat Modification Turbidity Medium 1998 Yes Painters Run, Unt (Stream Code: 36805, SWP: 20F) 971003-1230-ALF 0.42 Unassessed Project Habitat Modification Siltation Medium 1998 Yes Habitat Modification Suspended Solids Medium 1998 Yes Unassessed Project Habitat Modification Turbidity Medium 1998 Yes Painters Run, Unt (Stream Code: 36806, SWP: 20F) 971003-1230-ALF 0.32 Unassessed Project Habitat Modification Siltation Medium 1998 Yes Unassessed Project Habitat Modification Suspended Solids Medium 1998 Yes Habitat Modification Turbidity Medium 1998 Yes UnassessedPainters Run, Project Unt (Stream Code: 36807, SWP: 20F) Unassessed971003-1230-ALF Project 0.6 Unassessed Project Habitat Modification Siltation Medium 1998 Yes Habitat Modification Suspended Solids Medium 1998 Yes Habitat Modification Turbidity Medium 1998 Yes UnassessedPainters Run, Project Unt (Stream Code: 36808, SWP: 20F) Unassessed971125-0830-ALF Project 0.92 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Acid Mine Drainage Salinity/TDS/Chlorides Medium 1998 Yes Acid Mine Drainage Siltation Medium 1998 Yes Unassessed Project Acid Mine Drainage Suspended Solids Medium 1998 Yes UnassessedPainters Run, Project Unt (Stream Code: 36809, SWP: 20F) 971003-1230-ALF 0.68 Unassessed Project Habitat Modification Siltation Medium 1998 Yes Habitat Modification Suspended Solids Medium 1998 Yes Unassessed Project Habitat Modification Turbidity Medium 1998 Yes UnassessedPainters Run, Project Unt (Stream Code: 36810, SWP: 20F) 971003-1100-ALF 0.5 Unassessed Project Habitat Modification Siltation Medium 1998 Yes Habitat Modification Turbidity Medium 1998 Yes UnassessedPinkertons ProjectRun (Stream Code: 63290, SWP: 20F) Unassessed971126-1130-RB Project 2.79 Unassessed Project Source Unknown Cause Unknown Low 1998 Yes Pinkertons Run, Unt (Stream Code: 63291, SWP: 20F) 971126-1130-RB 0.53 Unassessed Project Source Unknown Cause Unknown Low 1998 Yes UnassessedPlum Run (Stream Project Code: 37044, SWP: 20F) Unassessed971023-1300-ALF Project 0.64 Unassessed Project Habitat Modification Other Habitat Alterations Low 1998 Yes Unassessed Project Habitat Modification Siltation Medium 1998 Yes On site Wastewater Nutrients Medium 1998 Yes On site Wastewater Organic Enrichment/Low D.O. Medium 1998 Yes Unassessed971023-1400-ALF Project 3.61 Unassessed Project Agriculture Nutrients Medium 1998 Yes Unassessed Project Agriculture Siltation Medium 1998 Yes

Unassessed Project

Unassessed Project Unassessed Project Unassessed Project

Unassessed Project

D-34 Appendix D: Year 2000 303(d) List OF STREAMS AND RIVERS IN WATERSHED 20F, CHARTIERS CREEK WATERSHED

Segment ID Mile Data Source Source of Impairment Cause of Impairment Priority Listed by 2002? TMDL Habitat Modification Other Habitat Alterations Low 1998 Yes Habitat Modification Siltation Medium 1998 Yes Habitat Modification Turbidity Medium 1998 Yes On site Wastewater Organic Enrichment/Low D.O. Medium 1998 Yes Plum Run, Unt (Stream Code: 37045, SWP: 20F) 971023-1300-ALF 1.1 Unassessed Project Habitat Modification Other Habitat Alterations Low 1998 Yes Habitat Modification Siltation Medium 1998 Yes On site Wastewater Nutrients Medium 1998 Yes On site Wastewater Organic Enrichment/Low D.O. Medium 1998 Yes Plum Run, Unt (Stream Code: 37046, SWP: 20F) 971023-1400-ALF 1 Unassessed Project Agriculture Nutrients Medium 1998 Yes Agriculture Siltation Medium 1998 Yes Habitat Modification Other Habitat Alterations Low 1998 Yes Habitat Modification Siltation Medium 1998 Yes Unassessed Project Habitat Modification Turbidity Medium 1998 Yes Unassessed Project On site Wastewater Organic Enrichment/Low D.O. Medium 1998 Yes UnassessedRobb Run (Stream Project Code: 63307, SWP: 20F) Unassessed971126-1100-RB Project 2.01 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Robinson Run (Stream Code: 36794, SWP: 20F) 971123-1200-RB 0.82 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Unassessed971124-1030-RB Project 0.79 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Unassessed Project On site Wastewater Nutrients Medium 1998 Yes Unassessed971124-1100-RB Project 0.9 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes 971124-1130-RB 0.25 Unassessed Project Natural Sources Siltation Medium 1998 Yes Natural Sources Siltation Medium 1998 Yes Unassessed Project On site Wastewater Nutrients Medium 1998 Yes Unassessed971124-1230-RB Project 1.78 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Unassessed971124-1300-RB Project 1.89 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Unassessed971126-1100-RB Project Unassessed Project Acid Mine Drainage Metals Medium 1998Yes Unassessed971126-1130-RB Project 0.99 Unassessed Project Source Unknown Cause Unknown Low 1998 Yes 971126-1200-RB 4.33 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes On site Wastewater Nutrients Medium 1998 Yes 971203-1200-ALF 1.69 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Combined Sewer Overflow Organic Enrichment/Low D.O. Medium 1998 Yes

Unassessed Project Urban Runoff/Storm Nutrients Medium 1998 Yes 971204-1045-ALF 0.43 Unassessed Project Acid Mine Drainage Metals Medium 1996 Yes Unassessed Project Acid Mine Drainage Salinity/TDS/Chlorides Medium 1996 Yes Unassessed Project Acid Mine Drainage Siltation Medium 1996 Yes Acid Mine Drainage Suspended Solids Medium 1996 Yes Robinson Run, Unt (Stream Code: 63285, SWP: 20F) 971204-1045-ALF 1.69 Unassessed Project Acid Mine Drainage Metals Medium 1996 Yes Acid Mine Drainage Salinity/TDS/Chlorides Medium 1996 Yes Acid Mine Drainage Siltation Medium 1996 Yes Unassessed Project Acid Mine Drainage Suspended Solids Medium 1996 Yes Robinson Run, Unt (Stream Code: 63293, SWP: 20F) Unassessed971126-1130-RB Project 1.37 Unassessed Project Source Unknown Cause Unknown Low 1998 Yes Robinson Run, Unt (Stream Code: 63304, SWP: 20F) Unassessed971126-1100-RB Project 1.64 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Robinson Run, Unt (Stream Code: 63305, SWP: 20F)

Unassessed Project Unassessed Project Unassessed Project

Unassessed Project Unassessed Project Unassessed Project Sewers

D-35 Appendix D: Year 2000 303(d) List OF STREAMS AND RIVERS IN WATERSHED 20F, CHARTIERS CREEK WATERSHED

Segment ID Mile Data Source Source of Impairment Cause of Impairment Priority Listed by 2002? TMDL 971126-1100-RB 0.39 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Robinson Run, Unt (Stream Code: 63306, SWP: 20F) 971126-1100-RB 1.11 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Robinson Run, Unt (Stream Code: 63308, SWP: 20F) 971124-0930-RB 2.67 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Robinson Run, Unt (Stream Code: 63309, SWP: 20F) 971124-1230-RB 0.98 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Robinson Run, Unt (Stream Code: 63310, SWP: 20F) 971124-1230-RB 0.37 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Robinson Run, Unt (Stream Code: 63311, SWP: 20F) 971124-1230-RB 1.93 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Robinson Run, Unt (Stream Code: 63312, SWP: 20F) 971124-1230-RB 0.23 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Robinson Run, Unt (Stream Code: 63313, SWP: 20F) 971124-1230-RB 0.77 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Robinson Run, Unt (Stream Code: 63314, SWP: 20F) 971124-1000-RB 0.83 Unassessed Project Construction Siltation Medium 1998 Yes 971124-1230-RB 0.25 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Robinson Run, Unt (Stream Code: 63315, SWP: 20F) 971124-1000-RB 0.36 Unassessed Project Construction Siltation Medium 1998 Yes Robinson Run, Unt (Stream Code: 63316, SWP: 20F) 971124-1000-RB 0.49 Unassessed Project Construction Siltation Medium 1998 Yes Robinson Run, Unt (Stream Code: 63317, SWP: 20F) 971124-1130-RB 0.92 Unassessed Project Natural Sources Siltation Medium 1998 Yes Natural Sources Siltation Medium 1998 Yes On site Wastewater Nutrients Medium 1998 Yes Robinson Run, Unt (Stream Code: 63318, SWP: 20F) 971124-1030-RB 0.78 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes On site Wastewater Nutrients Medium 1998 Yes Robinson Run, Unt (Stream Code: 63319, SWP: 20F) 971124-1030-RB 1.88 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes On site Wastewater Nutrients Medium 1998 Yes Robinson Run, Unt (Stream Code: 63321, SWP: 20F) 971124-1100-RB 0.51 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Robinson Run, Unt (Stream Code: 63322, SWP: 20F) 971124-1100-RB 1.38 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Robinson Run, Unt (Stream Code: 63323, SWP: 20F) 971124-1100-RB 0.33 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes UnassessedRobinson Run, Project Unt (Stream Code: 63324, SWP: 20F) Unassessed971124-1100-RB Project 0.53 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Robinson Run, Unt (Stream Code: 63864, SWP: 20F) 971203-1200-ALF 1.79 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Unassessed Project Combined Sewer Overflow Organic Enrichment/Low D.O. Medium 1998 Yes

Urban Runoff/Storm Nutrients Medium 1998 Yes Unassessed Project Sawmill Run (Stream Code: 37164, SWP: 20F) 971125-0840-TV 0.59 Unassessed Project Combined Sewer Overflow Organic Enrichment/Low D.O. Medium 1996 Yes

Urban Runoff/Storm Water/Flow Variability Low 1996 Yes

Unassessed Project

Unassessed Project

Unassessed Project

Sewers

Sewers

D-36 Appendix D: Year 2000 303(d) List OF STREAMS AND RIVERS IN WATERSHED 20F, CHARTIERS CREEK WATERSHED

Segment ID Mile Data Source Source of Impairment Cause of Impairment Priority Listed by 2002? TMDL 971125-0920-TV 0.84 Unassessed Project Acid Mine Drainage Metals Medium 1996 Yes Combined Sewer Overflow Organic Enrichment/Low D.O. Medium 1996 Yes

Urban Runoff/Storm Water/Flow Variability Low 1996 Yes

971125-1017-TV 2.74 Unassessed Project Combined Sewer Overflow Organic Enrichment/Low D.O. Medium 1996 Yes

Urban Runoff/Storm Water/Flow Variability Low 1996 Yes

971125-1400-TV 1.44 Unassessed Project Combined Sewer Overflow Organic Enrichment/Low D.O. Medium 1996 Yes

Urban Runoff/Storm Water/Flow Variability Low 1996 Yes

971126-0830-TV 0.58 Unassessed Project Acid Mine Drainage Metals Medium 1996 Yes Combined Sewer Overflow Organic Enrichment/Low D.O. Medium 1996 Yes Unassessed Project Combined Sewer Overflow Water/Flow Variability Low 1996 Yes Habitat Modification Other Habitat Alterations Low 1996 Yes Unassessed Project Urban Runoff/Storm Water/Flow Variability Low 1996 Yes

971126-1310-TV 3.11 Unassessed Project Combined Sewer Overflow Organic Enrichment/Low D.O. Medium 1996 Yes Unassessed Project Urban Runoff/Storm Water/Flow Variability Low 1996 Yes

Sawmill Run, Unt (Stream Code: 37166, SWP: 20F) 971126-0740-TVUnassessed Project 0.85 Unassessed Project Combined Sewer Overflow Organic Enrichment/Low D.O. Medium 1998 Yes

Urban Runoff/Storm Siltation Medium 1998 Yes Unassessed Project Sewers Unassessed Project Unassessed Project Urban Runoff/Storm Water/Flow Variability Low 1998 Yes

UnassessedSawmill Run, Project Unt (Stream Code: 37167, SWP: 20F) Sewers971126-0740-TV 0.57 Unassessed Project Combined Sewer Overflow Organic Enrichment/Low D.O. Medium 1998 Yes

Urban Runoff/Storm Siltation Medium 1998 Yes Unassessed Project Sewers Urban Runoff/Storm Water/Flow Variability Low 1998 Yes

Sawmill Run, Unt (Stream Code: 37168, SWP: 20F) Unassessed971125-1230-TV Project 0.96 Unassessed Project Combined Sewer Overflow Organic Enrichment/Low D.O. Medium 1998 Yes

Urban Runoff/Storm Water/Flow Variability Low 1998 Yes Sewers Unassessed Project Sawmill Run, Unt (Stream Code: 37169, SWP: 20F) 971126-0830-TV 0.66 Unassessed Project Acid Mine Drainage Metals Medium 1996 Yes Combined Sewer Overflow Organic Enrichment/Low D.O. Medium 1996 Yes Sewers Combined Sewer Overflow Water/Flow Variability Low 1996 Yes Unassessed Project Habitat Modification Other Habitat Alterations Low 1996 Yes

Unassessed Project Sewers

Sewers Unassessed Project

Sewers Unassessed Project Unassessed Project Unassessed Project Sewers

Sewers

D-37 Appendix D: Year 2000 303(d) List OF STREAMS AND RIVERS IN WATERSHED 20F, CHARTIERS CREEK WATERSHED

Segment ID Mile Data Source Source of Impairment Cause of Impairment Priority Listed by 2002? TMDL Urban Runoff/Storm Water/Flow Variability Low 1996 Yes

Sawmill Run, Unt (Stream Code: 37170, SWP: 20F) 971125-1500-TV 1.67 Unassessed Project Combined Sewer Overflow Organic Enrichment/Low D.O. Medium 1998 Yes

Urban Runoff/Storm Water/Flow Variability Low 1998 Yes

Sawmill Run, Unt (Stream Code: 37171, SWP: 20F) 971125-1500-TV 0.52 Unassessed Project Combined Sewer Overflow Organic Enrichment/Low D.O. Medium 1998 Yes

Urban Runoff/Storm Water/Flow Variability Low 1998 Yes

Sawmill Run, Unt (Stream Code: 37172, SWP: 20F) 971125-1100-TV 0.87 Unassessed Project Combined Sewer Overflow Organic Enrichment/Low D.O. Medium 1998 Yes Unassessed Project Urban Runoff/Storm Water/Flow Variability Low 1998 Yes

Sawmill Run, Unt (Stream Code: 37174, SWP: 20F) 971126-1310-TV 0.9 Unassessed Project Combined Sewer Overflow Organic Enrichment/Low D.O. Medium 1996 Yes Unassessed Project Urban Runoff/Storm Water/Flow Variability Low 1996 Yes

Scrubgrass Run (Stream Code: 36797, SWP: 20F) 971125-0830-ALF 1.59 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Unassessed Project Acid Mine Drainage Salinity/TDS/Chlorides Medium 1998 Yes Acid Mine Drainage Siltation Medium 1998 Yes Sewers Acid Mine Drainage Suspended Solids Medium 1998 Yes 971204-1045-ALF 0.68 Unassessed Project Acid Mine Drainage Metals Medium 1996 Yes Acid Mine Drainage Salinity/TDS/Chlorides Medium 1996 Yes Unassessed Project Acid Mine Drainage Siltation Medium 1996 Yes Acid Mine Drainage Suspended Solids Medium 1996 Yes SewersScrubgrass Run, Unt (Stream Code: 36798, SWP: 20F) 971125-0830-ALF 0.62 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Acid Mine Drainage Salinity/TDS/Chlorides Medium 1998 Yes Unassessed Project Acid Mine Drainage Siltation Medium 1998 Yes Acid Mine Drainage Suspended Solids Medium 1998 Yes SewersThoms Run (Stream Code: 36823, SWP: 20F) 970828-1425-ALF 2.02 Unassessed Project On site Wastewater Nutrients Medium 1998 Yes Unassessed970829-1130-ALF Project 1.06 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Unassessed Project Acid Mine Drainage Salinity/TDS/Chlorides Medium 1998 Yes Unassessed Project Acid Mine Drainage Suspended Solids Medium 1998 Yes Sewers Habitat Modification Siltation Medium 1998 Yes Unassessed Project Habitat Modification Turbidity Medium 1998 Yes Unassessed Project On site Wastewater Nutrients Medium 1998 Yes Unassessed971003-0940-ALF Project 0.1 Unassessed Project Habitat Modification Siltation Medium 1998 Yes Habitat Modification Turbidity Medium 1998 Yes SewersThoms Run, Unt (Stream Code: 36824, SWP: 20F) Unassessed970828-1330-ALF Project 1.63 Unassessed Project Acid Mine Drainage Turbidity Medium 1998 Yes Unassessed Project Habitat Modification Siltation Medium 1998 Yes Unassessed Project Subsurface Mining Salinity/TDS/Chlorides Medium 1998 Yes

Unassessed Project Unassessed Project Unassessed Project Unassessed Project Unassessed Project

Unassessed Project

Unassessed Project Unassessed Project

D-38 Appendix D: Year 2000 303(d) List OF STREAMS AND RIVERS IN WATERSHED 20F, CHARTIERS CREEK WATERSHED

Segment ID Mile Data Source Source of Impairment Cause of Impairment Priority Listed by 2002? TMDL Urban Runoff/Storm Nutrients Medium 1998 Yes

Urban Runoff/Storm Organic Enrichment/Low D.O. Medium 1998 Yes

Thoms Run, Unt (Stream Code: 36825, SWP: 20F) 970829-1130-ALF 1.32 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Acid Mine Drainage Salinity/TDS/Chlorides Medium 1998 Yes Acid Mine Drainage Suspended Solids Medium 1998 Yes Habitat Modification Siltation Medium 1998 Yes Habitat Modification Turbidity Medium 1998 Yes On site Wastewater Nutrients Medium 1998 Yes Thoms Run, Unt (Stream Code: 36826, SWP: 20F) 970829-1130-ALF 0.31 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Unassessed Project Acid Mine Drainage Salinity/TDS/Chlorides Medium 1998 Yes Acid Mine Drainage Suspended Solids Medium 1998 Yes Habitat Modification Siltation Medium 1998 Yes Unassessed Project Habitat Modification Turbidity Medium 1998 Yes On site Wastewater Nutrients Medium 1998 Yes Whiskey Run (Stream Code: 36784, SWP: 20F) 971125-0915-ALF 1.01 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Unassessed Project Acid Mine Drainage Salinity/TDS/Chlorides Medium 1998 Yes Unassessed Project Acid Mine Drainage Siltation Medium 1998 Yes Unassessed Project Acid Mine Drainage Suspended Solids Medium 1998 Yes Unassessed971204-1045-ALF Project 1.1 Unassessed Project Acid Mine Drainage Metals Medium 1996 Yes Unassessed Project Acid Mine Drainage Salinity/TDS/Chlorides Medium 1996 Yes Sewers Acid Mine Drainage Siltation Medium 1996 Yes Acid Mine Drainage Suspended Solids Medium 1996 Yes UnassessedWhiskey Run, Project Unt (Stream Code: 36785, SWP: 20F) Sewers Unassessed971125-0915-ALF Project 0.13 Unassessed Project Acid Mine Drainage Metals Medium 1998 Yes Unassessed Project Acid Mine Drainage Salinity/TDS/Chlorides Medium 1998 Yes Unassessed Project Acid Mine Drainage Siltation Medium 1998 Yes Unassessed Project Acid Mine Drainage Suspended Solids Medium 1998 Yes

Unt = Unnamed Tributaries. Refer to the Department's stream file directory for locations. Unassessed*Year Listed Project = Records listed as 1996 may have first been listed in 1992, 1994, or 1996. Unassessed24-Jan-00 Project Unassessed Project

Unassessed Project Unassessed Project Unassessed Project

Unassessed Project Unassessed Project Unassessed Project

D-39

APPENDIX E:

CROSS REFERENCE OF WQLS AND 303(D) LIST

32

22 23

95 61 21 NL 22 60 94 91 91 NL 22 93 22 22 110 56 22 92 22 89 90 104 56 57 98 104 105 90 22 56 107 109 98 108 29 57 101 55 22 100 97 103 55 29 100 99 55 96 102 106 87 73 103 NL 26 75 88 54 97 82 55 74 53 59 73 76 86 83 52 53 26 80 79 77 59 82 33 85 81 80 76 81 84

Index numbers in Allegheny County corresponding to the 303(d) list.

E-1

78 33 30 14 NL 34 26 15 48 16 20 13 50 11 19 9 30 4 49 31 5 8 34 26 47 12 7 47 47 12 10 26 6 44 65 11 31 64 17 46 44 43 18 45 31 1 51 64 NL 1 3 66 67 38 3 35 64 42 2 3 70 64 NL 36 3 58 3 67 68 69 NL NL 3 39 NL 3 37 40 NL 40 3 3 NL 28 71 28 72 24 41 28 24 NL NL

63 62 28

27

25

Index numbers in Washington County corresponding to the 303(d) list.

E-2

Index numbers cross referenced with 303(d) listed stream segments.

Index 303(d) No. Name Segment ID Cause of Impairment 1 Allison Hollow 971029-1000-ALF Siltation Turbidity 2 Allison Hollow 971029-1100-ALF Nutrients Siltation Turbidity Siltation Turbidity 3 Allison Hollow 971205-1000-ALF Metals Suspended Solids Nutrients Organic Enrichment/Low D.O. Nutrients Siltation Nutrients Siltation 4 Brush Run 971006-1315-ALF Nutrients Siltation Turbidity 5 971007-1300-ALF Siltation Turbidity Nutrients Siltation 6 971009-1030-ALF Nutrients Other Habitat Alterations Turbidity 7 971009-1200-ALF Organic Enrichment/Low D.O. Other Habitat Alterations 8 971010-1145-ALF Nutrients Other Habitat Alterations Turbidity 9 971010-1300-ALF Nutrients Siltation Turbidity 10 970903-1200-ALF Nutrients Organic Enrichment/Low D.O. Siltation 11 971022-1345-ALF Nutrients Other Habitat Alterations 12 971023-1400-ALF Nutrients Siltation Other Habitat Alterations

E-3

Siltation Turbidity Organic Enrichment/Low D.O. 13 971006-1440-ALF Nutrients Turbidity 14 971007-1000-ALF Nutrients Siltation 15 971007-1120-ALF Nutrients Siltation 16 971007-1430-ALF Nutrients Siltation Turbidity 17 971009-0930-ALF Siltation Turbidity Nutrients Other Habitat Alterations 18 971010-1430-ALF Flow Alterations Other Habitat Alterations Siltation Suspended Solids Turbidity 19 970808-1030-ALF Salinity/TDS/Chlorides Nutrients Siltation Nutrients Nutrients Siltation 20 970808-1220-ALF Nutrients Siltation 21 Campbells Run 971126-0845-ALF Metals Suspended Solids Nutrients Nutrients 22 971204-1045-ALF Metals Salinity/TDS/Chlorides Siltation Suspended Solids 23 971126-0940-ALF Metals Salinity/TDS/Chlorides Suspended Solids Nutrients 24 Catfish Creek 971124-1340-ALF Siltation Nutrients 25 Chartiers Creek 4681 Metals 26 970902-1125-ALF Metals Organic Enrichment/Low D.O. Salinity/TDS/Chlorides E-4

Turbidity 27 970930-0940-TV Nutrients Nutrients Siltation 28 971001-0900-TV Nutrients Siltation Nutrients Siltation 29 971003-0940-ALF Siltation Turbidity 30 971022-0930-ALF Nutrients Other Habitat Alterations 31 971029-1200-ALF Nutrients Siltation Turbidity 32 971204-0950-ALF Metals Salinity/TDS/Chlorides Siltation Suspended Solids 33 971204-1300-ALF Nutrients Siltation 34 971022-1500-ALF Nutrients Other Habitat Alterations Siltation Turbidity 35 971023-1020-ALF Nutrients Other Habitat Alterations 36 971029-1415-ALF Siltation Turbidity 37 971124-0915-ALF Nutrients Nutrients 38 971124-1030-ALF Metals Suspended Solids Nutrients Siltation 39 970926-0954-TV Nutrients 40 970930-1310-TV Nutrients Siltation 41 971001-1040-TV Metals Siltation Siltation 40 970930-1310-TV Nutrients Siltation 41 971001-1040-TV Metals Siltation 42 971124-1030-ALF Metals Suspended Solids E-5

Nutrients Siltation 43 971023-1130-ALF Siltation Turbidity Nutrients Siltation Turbidity 44 971023-1300-ALF Other Habitat Alterations Siltation Nutrients Organic Enrichment/Low D.O. 45 971024-0940-ALF Metals Salinity/TDS/Chlorides Other Habitat Alterations Siltation Other Habitat Alterations Siltation 46 971024-1145-ALF Nutrients Siltation Turbidity Other Habitat Alterations Siltation 47 Chartiers Run 971024-1030-ALF Metals Salinity/TDS/Chlorides Other Habitat Alterations Siltation Other Habitat Alterations Siltation 48 971028-1000-ALF Nutrients Siltation Turbidity pH Turbidity 49 971028-1100-ALF Salinity/TDS/Chlorides Siltation Turbidity 50 971028-0840-ALF Siltation Turbidity Organic Enrichment/Low D.O. 51 971024-1145-ALF Nutrients Siltation Turbidity Other Habitat Alterations Siltation 52 Coal Run 970902-1300-ALF Nutrients Siltation 53 970903-1000-ALF Siltation E-6

Suspended Solids Turbidity 54 970903-0900-ALF Nutrients Siltation 55 Dolphin Run 970819-0930-ALF Salinity/TDS/Chlorides Turbidity Salinity/TDS/Chlorides Turbidity 56 Fink Run 971203-1200-ALF Metals Organic Enrichment/Low D.O. Nutrients 57 Georges Run 971125-0830-ALF Metals Salinity/TDS/Chlorides Siltation Suspended Solids 58 970926-1150-TV Metals Suspended Solids Siltation 59 Graesers Run 971002-1150-ALF Nutrients Siltation Turbidity 60 Half Crown Run 971124-1500-RB Metals Siltation 61 Lintons Run 971126-1130-RB Cause Unknown 62 Little Charties 971022-0930-TV Siltation Creek Nutrients Siltation Nutrients

Siltation

63 971022-1210-TV Siltation Siltation Nutrients

64 971205-1230-ALF Nutrients Unknown Toxicity Nutrients 65 971204-1500-ALF Organic Enrichment/Low D.O. Siltation 66 971010-1400-TV Siltation Siltation 67 971205-1345-ALF Nutrients Siltation Nutrients 68 971007-1320-TV Nutrients Nutrients E-7

Siltation 69 971008-1330-TV Nutrients Nutrients 70 971008-1030-TV Siltation Nutrients 71 971009-1050-TV Metals Suspended Solids 72 971009-1245-TV Metals Suspended Solids Siltation 73 McLaughlin Run 971001-1200-ALF Nutrients Other Habitat Alterations Siltation 74 971001-1300-ALF Nutrients Siltation 75 971001-1430-ALF Siltation Turbidity Water/Flow Variability 76 971002-0945-ALF Flow Alterations Other Habitat Alterations Flow Alterations Other Habitat Alterations 77 971002-1045-ALF Nutrients Siltation Turbidity 78 McPherson 971022-0930-ALF Nutrients Creek Other Habitat Alterations 79 Millers Run 970723-0840-TV Nutrients Siltation 80 970723-1000-TV Nutrients Siltation Nutrients Siltation 81 970723-1200-TV Salinity/TDS/Chlorides Nutrients Siltation Nutrients 82 970723-1315-TV Nutrients Siltation 83 970818-1300-ALF Siltation Turbidity 84 970819-0830-ALF Siltation Turbidity Siltation Turbidity 85 970822-0920-ALF Nutrients Siltation E-8

Turbidity Siltation 86 970822-1100-ALF Metals Suspended Solids Nutrients 87 970822-1010-TV Nutrients Siltation Turbidity 88 970822-0830-ALF Nutrients Siltation 89 North Branch 971123-1115-RB Metals Robinson Run Siltation 90 971124-1300-RB Metals 91 971124-1430-RB Metals 92 971126-1000-RB Metals Siltation 93 971126-1030-RB Metals 94 971124-1330-RB Metals 95 971124-1400-RB Metals 96 Painters Run 971003-1100-ALF Siltation Turbidity 97 971003-1230-ALF Siltation Suspended Solids Turbidity 98 Robinson Run 971126-1100-RB Metals 99 971123-1200-RB Metals 100 971124-1030-RB Metals Nutrients 101 971124-1100-RB Metals 102 971124-1130-RB Siltation Siltation Nutrients 103 971124-1230-RB Metals 104 971126-1200-RB Metals Nutrients 105 971124-0930-RB Metals 106 971124-1000-RB Siltation 107 Thoms Run 970828-1425-ALF Nutrients 108 970829-1130-ALF Metals Salinity/TDS/Chlorides Suspended Solids Siltation Turbidity Nutrients 109 970828-1330-ALF Turbidity Siltation Salinity/TDS/Chlorides E-9

Nutrients Organic Enrichment/Low D.O. 110 Whiskey Run 971125-0915-ALF Metals Salinity/TDS/Chlorides Siltation Suspended Solids

E-10 Chartiers Creek TMDLs for Acid Mine Drainage Affected Segments

Appendix C

C-1