Stormwater Pollution Prevent Plan INTERIM DRAFT Ada County Highway District Adams Street Maintenance Facility 3700 & 3730 Adams Street Garden City, Idaho 83714
November 2019 SWPPP CONTACT:
Ada County Highway District 3775 Adams Street Garden City, Idaho 83714 (208) 373-6100 Monday-Friday 8AM to 5PM
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Revisions
Date Revision Description Number December 2015 Rev 0 See old SWPPP November 2019 Rev1 Update for current site conditions
This SWPPP is a living document that is intended to replace the 2015 SWPPP as the interim draft. As such, it can be modified as facility operations are altered. Alterations include but are not limited to new structures, construction, additional BMPs, or documented spills. Additionally, the SWPPP will be updated if new information regarding facility compliance or documentation is deemed necessary.
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Table of Contents Section 1: Facilities Description and Contact Information ...... 6 1.1 Facility Background ...... 6 1.1.1 Facility Information ...... 6 1.2 Site Description ...... 6 1.3 Site Maps...... 7 1.4 Contact Information and Responsible Parties ...... 7 1.5 Drainage Areas ...... 8 1.6 Discharge Locations ...... 9 1.6.1 Unauthorized Non-stormwater Discharge Documentation ...... 9 Section 2: Potential Pollutant Sources ...... 10 2.1 Potential Pollutants Associated with Industrial Activity ...... 10 2.2 Spills and Leaks ...... 10 2.3 Monitoring Requirements & Effluent Limits ...... 10 2.4 Facility Features and Structure Descriptions...... 12 2.4.1 A-7...... 12 2.4.2 A-8...... 12 2.4.3 A-9...... 13 2.4.4 A-10 ...... 13 2.4.5 A-11 ...... 13 2.4.6 A-12, A-12.1, and adjacent ...... 13 2.4.7 A-13 ...... 14 2.4.8 A-14 ...... 14 2.4.9 A-15 ...... 14 2.4.10 A-16 through A-20, excluding A-18 ...... 15 2.4.11 A-18 ...... 15 2.4.12 A-21 ...... 15 2.4.13 Fueling Stations ...... 15 2.4.14 Magnesium Chloride Tanks ...... 15 2.4.15 Sanders Racks ...... 16 2.4.16 Material Storage Piles ...... 16 2.4.17 Wash Bays & Decant Station ...... 17
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2.4.18 Pump Shed ...... 18 2.4.19 Containment Areas ...... 18 Section 3: Stormwater Control Measures ...... 19 3.1 Minimize Exposure ...... 19 3.1.1 Non-Stormwater Discharges to Drains ...... 19 3.1.2 Outdoor Storage of Raw Materials ...... 19 3.2 Good Housekeeping ...... 19 3.2.1 Vehicle and Equipment Fueling ...... 19 3.2.2 Vehicle and Equipment Cleaning ...... 20 3.2.3 Outdoor Loading and Unloading of Materials ...... 20 3.2.4 Waste Handling and Disposal ...... 20 3.2.5 Contaminated or Erodible Surface Areas ...... 20 3.3 Maintenance ...... 21 3.3.1 Vehicle and Equipment Maintenance and Repair ...... 21 3.3.2 Building and Ground Maintenance ...... 21 3.3.3 Building Repair, Remodeling, & Construction ...... 22 3.4 Spill Prevention and Response ...... 22 3.5 Erosion and Sediment Controls ...... 22 3.6 Management of Runoff ...... 23 3.7 Salt Storage...... 23 3.8 Dust Generation and Vehicle Tracking ...... 23 3.9 Employee Training ...... 23 Section 4: Inspections and Records ...... 24 4.1 Inspections and Assessments ...... 24 4.2 Record Retention...... 24 Section 5: Documentation to Support Eligibility Considerations under Other Federal Laws ...... 25 5.1 Documentation Regarding Endangered Species ...... 25 5.2 Documentation Regarding Historic Properties ...... 25 Section 6: Corrective Actions ...... 25 Section 7: SWPPP Certifications ...... 25 Section 8: SWPPP Modifications ...... 25 Section 9: References ...... 26
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Appendix A. Vicinity Map Appendix B. Drainage Areas and Outfall Map Appendix C. Site Map Appendix D. Stormwater Routine Facility Inspection Form Appendix E. IPAC Resource List Appendix G. Additional BMP References
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Section 1: Facilities Description and Contact Information
1.1 Facility Background
Ada County Highway District (ACHD) is a Permittee under the National Pollutant Discharge Elimination System (NPDES) Phase I and Phase II Municipal Storm Sewer System (MS4) Permits. The NPDES permits require that all permittees develop and implement Storm Water Pollution Prevention Plans (SWPPPs) for all Permittee-owned material storage facilities and maintenance yards located within the Permit area. Both the Adams and Cloverdale Maintenance Facilities are located within the Phase I permit area and are covered under Permit No: IDS-027561. This SWPPP is intended to meet permit requirement II.B.4.f of the Boise Area NPDES MS4 Permit and prevent the discharge of stormwater pollutants into receiving waters through the implementation of site specific BMPs.
1.1.1 Facility Information Facility Name: Ada County Highway District Adams Street Maintenance Facility
Facility Street Address: 3700 & 3730 Adams Street Garden City, Idaho 83717 Facility Mailing Address: 3775 Adams Street Garden City, Idaho 83714 Facility Phone Number During Working Hours: [8am-4:30pm] (208) 387-6100 Owner Name: Ada County Highway District
Owner Address: 3775 Adams Street Garden City, Idaho 83714 Operator Company Name: Ada County Highway District Operator Company Address: 3775 Adams Street Garden City, Idaho 83714 Latitude/Longitude: 43°37’46.56” N 116°114’18.78” W River Drainage Basin: Boise River Receiving Water Bodies: Boise River- 33ft north, from northern boundary
1.2 Site Description The Ada County Highway District (ACHD) facility located in Garden City, Idaho, is a distribution and maintenance facility that serves Ada County, Idaho. Located on approximately 11 acres, the facility is surrounded on three sides with residential homes and light use industrial/commercial properties. The northern boundary of the facility is the Boise River.
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The Adams Street facility meets the requirements under the Spill Prevention Control and Counter measures (SPCC) Oil Pollution Prevention regulations by having an aboveground oil storage capacity exceeding 1,320 gallons. The Adams facility retains an updated SPCC plan that outlines the procedures, methods and equipment used at the facility to prevent and respond to spills of liquid materials. A copy of the SPCC plan and corresponding documents is in the Adams Superintendent’s office, the on-call superintendents go bag, and at the facilities maintenance building. The Adams Street facility is also required to have an Accidental Spill Prevention Plan (ASPP) by Garden City as part of an Indirect Discharge Permit to discharge into the sanitary sewer from the decant and wash stations. A copy of the ASPP is also available in the Adams Superintendents office and the facilities maintenance building.
1.3 Site Maps Please see Appendix A for the vicinity map, Appendix B for site outfalls and drainage areas, and Appendix C for site specifics.
1.4 Contact Information and Responsible Parties The following people are involved in implementing and modifying the SWPPP.
Responsible Officials: Deputy Director of Maintenance 208-387-6322 (o) Responsibilities: Ensure overall compliance of all ACHD owned maintenance facilities within the county. Maintenance Manager 208-387-6319 (o) 208-919-4623 (c) Responsibilities: Maintain coordination between maintenance staff and environmental staff, ensure consistent environmental compliance, and provide budget when needed for compliance related issues. Maintenance Superintendent 208-387-6327 (o) 208-484-0389 (c) Responsibilities: Direct, coordinate and ensure that BMPs are implemented; budget for construction of new BMPs, modification of existing BMPs and maintenance of existing BMPs. Direct and educate employees working at the Adams facility of their roles and responsibilities in implementing this SWPPP. Participate in compliance evaluations and inspections of the facility. Traffic Superintendent 208-387-6192 (o) 208-860-6655 (c) Responsibilities: Direct, coordinate and ensure that BMPs are implemented; budget for construction of new BMPs, modification of existing BMPs and maintenance of existing BMPs. Direct and educate employees working at the Adams facility of their roles and responsibilities in implementing this SWPPP. Participate in compliance evaluations and inspections of the facility. Environmental Programs Coordinator 208-387-6279 (o) 208-608-3983 (c) Responsibilities: Initial development of the SWPPP and updates, as needed, for compliance support. Participate in compliance evaluations and inspections of the facility as needed.
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1.5 Drainage Areas Stormwater at the Adams facility is drained by multiple catch basins, storm drains, and channels. All drainage areas at this facility drain to one of the two outfalls, infiltrates onsite, or discharged via the sanitary sewer. There are three (3) distinct drainage areas that make up the facility site. The majority of stormwater from the facility enters into a piped system on the western border discharging through a sand and grease trap into the Boise River, this outfall is referred to as Adams Outfall #1 (AOF1). Stormwater from the area on the west side of the Broom Shed, A-14, drains to a system discharging to the Boise River through an outfall referred to as Adams Outfall #2 (AOF2). A site map showing the drainage areas and outfalls is in Appendix B (areas labeled as D1, D2, and D3) of this document for additional information.
• Drainage Area 1 consists of the vicinity of the Carpentry Shop (A-11) on the east side of the facility. Surface water near the shop flows into a storm drain inlet which is connected to an 8- inch diameter perforated pipe that is 12-feet long and runs parallel to the east fence line. Collected stormwater from this drainage area seeps into the surrounding soil via a perforated pipe. This area is predominately impervious excluding the area adjacent to the A-11 which is primarily highly compacted soil and gravel. Potential pollutants in this area include: o Sediment from erosion of unpaved areas o Traffic paints and solvents
• Drainage Area 2 consists of roof drains from the Broom Shed (A-14) and a small area to the north and south of A-14. There are two catch basins in this system, one of which is now covered by a roof, one immediately south of A-14, and the other on the northwest corner of A-14. This area is conveyed to AOF2 on the northeast property boundary. Potential pollutants in this area include: o Oil from vehicle/equipment leaks o Sediment from track out and wash bay area o Roof runoff from adjacent buildings o Traffic paints o Material storage runoff
• Drainage Area 3 consists of approximately 90% of the yard which is conveyed through a series of catch basins and sand and grease traps to the main storm drain outfall, AOF1, on the western perimeter of the facility. Storm drainage runoff from this area is combined with upstream effluent from approximately 85 acres prior to being discharged into the Boise River. Materials and equipment stored in this drainage area consist of material stockpiles, equipment/fleet storage, paint storage, decant & wash area, sand & salt shed, sander racks, vehicle refueling area, and magnesium chloride tanks. The yard is paved or rotomilled with a small portion on the northwest side remaining permeable. The decant and wash bay areas are located within this drainage area. If an overflow or a spill were to occur from the decant and wash bay area, the water would be conveyed to adjacent catch basins. The western and northern perimeters have
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raised berms or Eco blocks to retain stormwater onsite. See Appendix B, Drainage Areas and Outfall Map, of this document for additional information. Potential pollutants in this area include: o Oil from vehicle/equipment leaks o Oil from mechanics shop tanks o Sediment from stockpiles, decant & wash bay area, and unpaved surfaces o Gas and diesel from fuel dispensing stations o Traffic paint & solvents o Chlorides from sand/salt stockpile and raw salt stored in shed o Material storage runoff o Roof runoff from adjacent buildings
1.6 Discharge Locations The Adams Street facility has two stormwater outfalls conveying directly into the Boise River. The primary outfall (AOF1) is located approximately 35 feet north of the facilities northwest corner and consists of an 18” PVC pipe recessed in the riverbank (Photo 1). This outfall takes drainage from the facility as well as the adjacent 85 acres. The second outfall (AOF2) discharges approximately 550 feet upstream from of AOF1 through an 18” corrugated metal pipe (Photo 2).
Photos 1 & 2. From left to right, AOF1 and AOF2
1.6.1 Unauthorized Non-stormwater Discharge Documentation There are no known unauthorized non-stormwater discharge locations onsite. ACHD commits the manpower, equipment, and materials required to expeditiously control and remove any quantity of spills that could potentially be harmful to health or the environment. If an unauthorized non-stormwater discharge is observed, the responsible person will document said event on the monthly inspection. Documentation will include the source, amount discharged, cleanup activities, how to prevent future occurrences, and other pertinent reportable information defined in the SPCC and ASPPs. For further
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Section 2: Potential Pollutant Sources
2.1 Potential Pollutants Associated with Industrial Activity Throughout the facility there are potential pollutants that could spill, leak, or drip. Below are industrial activities that occur at the facility and their potential pollutant. Table 1. Adams Industrial Activities and Associated Pollutants Industrial Activity Associated Pollutants Fueling and Vehicle Maintenance Oil, gas, diesel, or hydraulic fluid Salt Stockpiling Chlorine Stockpiling of construction debris, sand, Sediment, Oil, Gas, Diesel, or bacteria sweeper debris, dirt, riprap, or rubble Street Sweeper and Vehicle Washing Sediment or Bacteria Sediment, Oil, Gas, Diesel, Hydraulic Decant and Wash Bay Area Fluid or Bacteria Yard Drum Storage (A-18) Oils, tackifiers, or petroleum products Paint & Solvent Storage Potentially Hazardous Liquids
2.2 Spills and Leaks Throughout the facility there are areas that have the potential to have leaks or spills. Spills and leaks that are observed during the site walks are documented on the inspection reports. Minor hydraulic drips occur from the removal of the sanders racks. Staff are trained to clean up any spills or leaks observed onsite. Table 2. Industrial Activity and Correlated Discharge Point Location Discharge Point Decant Water Treatment AOF1 and AOF2 Fueling Station AOF1 Sander Racks AOF1 Vehicle Storage AOF1 and AOF2 Yard Drum Storage (A-18) AOF1 Paint & Solvent Storage AOF1
2.3 Monitoring Requirements & Effluent Limits Approximately 2100 feet downstream of the outfall locations, the Boise River is a 303(d) listed river. Due to its listing, the river has three Total Maximum Daily Loads (TMDLs) for sediment, total and dissolved phosphorus, and bacteria. Discharge limits are set forth by IDAPA 58.01.02 Surface Water Quality Criteria for Primary Contact Recreation.
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Table 3. Boise River Monitoring Requirements TMDL Pollutant of Concern Discharge Limit Sediment Total Suspended Solids 50 mg/L Total Phosphorus 0.07 mg/L Phosphorus Dissolved Phosphorus 0.07 mg/L Instantaneous- 406MPN/100 mL Bacteria E-Coli Chronic- 126 MPN/100mL
Following the NPDES Phase 1 Permit, ACHD is required to conduct an outfall investigation on 20% of the ACHD outfall inventory, requiring one site visit for each outfall over the permit term. If flow is observed, sampling and chemical analysis is completed. Monitoring pollutants of concern includes turbidity, pH, temperature, DO, chlorine, total copper, phenols, and detergents. All flow observations are monitored during three different irrigation time periods set by the Dry Weather Outfall Screening Plan. If a flow is above program benchmarks for one or more irrigation time periods, sampling will continue annually until the quality has improved or flow has been eliminated. Past monitoring of the outfalls is documented in Tables 4 and 5, Dry Weather Monitoring at AOF1 & AOF2. Table 4. Dry Weather Monitoring at AOF1 Sampling Date Flow Sampling Results Completed 5/15/2009 Moderate No NA 1/27/2015 Dry No NA Temperature (°C) 12.2 Dissolved Oxygen (mg/L) 8.56 mg/L @ 13°C Conductivity (uS/cm) 46.0 @ 13°C Turbidity (NTU) 3.65 5/5/2015 0.217 CFS Yes pH (s.u.) 7.85 s.u. Total Chlorine (mg/L) 0 mg/L Total Copper (mg/L) 0 mg/L Phenols (mg/L) 0 mg/L 1/25/2016 Dry No NA Temperature (°C) 18.63 °C Dissolved Oxygen (mg/L) 7.62 Conductivity (uS/cm) 61.96 Turbidity (NTU) 1.67 pH (s.u.) 7.85 Total Chlorine (mg/L) 0 8/27/2019 Moderate Yes Total Copper (mg/L) 0 Phenols (mg/L) 0 E. Coli (MPN) 17.1 TSS (mg/L) 24.1 ORP (mg/L) 0.0158 Total P (mg/L) 0.0228 Detergents (mg/L) 0.01
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Table 5. Dry Weather Monitoring at AOF2 Sampling Date Flow Sampling Results Completed 5/15/2009 Dry No NA 8/23/2013 Dry No NA 5/2/2019 Dry No NA
Additionally, both outfalls are visually monitored monthly and observations are documented on the Stormwater Routine Facility Inspection Report.
2.4 Facility Features and Structure Descriptions
2.4.1 A-7 The administrative office, A-7, is used for office purposes. The SWPPP and copies of the ASPP & SPCC are in the superintendent’s office. Roof runoff from this area drains to drainage area 3 with outfall to the Boise River, AOF1.
2.4.2 A-8 The mechanics shop, A-8, is located adjacent to the administrative office building is used for general mechanical maintenance of vehicles and equipment. This building also houses the oil storage room containing four (4) above ground storage tanks (ASTs) containing various grades of motor oil. The oil room acts as secondary containment and has no discharge outlet. The concrete floor of the mechanic shop drains into a trough that lies along the axis of the shop. The trough is connected to the sanitary sewer system through a series of oil separator tanks. Spills within the mechanic shop tend to be small and cleaned up immediately by ACHD personnel. For detail on the oil handling, storage and spill response refer to the Adams Street SPCC Plan. The roof drains on this building are connected to the storm drain system on the East and West and discharge via drainage area 3 to AOF1. There is an ice machine located on the eastern side of the building with an outfall to a drain line.
Photos 3 &4 From left to right, A-7 & A-8
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2.4.3 A-9 A small portion of traffic operations is in building A-9. Roof runoff from this area drains to drainage area 3 and is conveyed to the Boise River via AOF1.
2.4.4 A-10 The main location for traffic operations is in structure A-10. This structure contains administration offices, the TMC, sign shop, and a storage area. Roof runoff from this area drains to drainage area 3 and ultimately the Boise River via AOF1.
2.4.5 A-11 A-11 is the Traffic Operations primary storage location for all chemicals and paints. Flammable containment storage lockers located within A-11 provide storage for flammable chemicals such as paints, as well as other potentially harmful chemicals. Along the outside wall of A-11 is a metal storage locker used to store propane and butane canisters.
Photos 5-7 From left to right, A-9, A-10, and A-11
2.4.6 A-12, A-12.1, and adjacent Building A-12 contains a bay which holds up to sixteen 250-gallon totes of marking paint. The totes are stored within an asphalt containment berm that measures 19-feet by 20-feet and is 3-inches high (total capacity of 710 gallons). The floor of the bay is constructed of impervious material. A-12.1 houses various products under an enclosed roof with impervious floor and sidewalls for containment. Roof runoff from this area drains to the Boise River via drainage area 3. Additionally, an outdoor impervious three-walled secondary containment area is located to the north of A-12; the area is approximately 22- feet by 86-feet and at the low point 2-inches high. The area is sloped to the northeast with approximate capacity of 1800 gallons. If containment berms were to fail, runoff from this area would discharge the Boise River via drainage area 3 and outfall AOF1.
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Photos 8-10 From left to right, A-12, A-12.1, and adjacent
2.4.7 A-13 Building A-13 stores daily used chemicals for the paint crew as well as a parts washer. Roof runoff from this area is drains to drainage area 3 discharging to the Boise river.
2.4.8 A-14 This structure contains all sweeper brooms, there is a spill kit located on the southeast corner outside of the building. Roof runoff from this building drains to either drainage area 2 or 3 with outfalls to the Boise River via AOF1 or AOF2.
Photos 11-12 From left to right, A-13 and A-14
2.4.9 A-15 A 500-gallon propane AST is located on the north side of the building. The double-walled tank is protected on three sides by jersey barriers and bollards, and the building on the 4th side. There is an emergency shut off switch for the tank’s pump located on the east side of the building (at least 25 feet away from tank), with signage directing where the shut off switch is located. The covered shed is mainly used for an indoor materials storage location. Drainage from this area flows to drainage area 3 with outfall to the Boise River.
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2.4.10 A-16 through A-20, excluding A-18 This area houses multiple small machines, traffic lighting, and miscellaneous parts. The area is covered to prevent surface water runoff, however roof runoff from this area either drains to drainage area 2 or 3 with outfall to the Boise River via AOF1 and AOF2.
2.4.11 A-18 A-18 is located along the northern fence line and adjacent to A-17 and A-19. The covered shed houses drums of oils used in yard operations. 55-gallon drums (plastic and steel) are stored within the shed on containment decks which act as secondary containment. If containment were to fail from this area it would drain to drainage area 3 with outfall to the Boise river via AOF1.
Photos 13-14 from left to right, A-15 and A-20-17
2.4.12 A-21 Structure A-21 contains multiple sand & salt stockpiles. The structure was installed in December of 2017 and is approximately 13,200 square feet. The shed has an earthen berm along the east edge to prevent runoff. If the berm was to fail, runoff would be discharged into the Boise River via drainage area 3.
2.4.13 Fueling Stations There are two fuel dispensing stations within the Adams facility. A diesel pump with Underground Storage Tank (UST) and gasoline pump with UST are both located between the A-8, mechanics shop, and A-10, traffic operations, total storage between the two structures is 20,000 gallons. Both fueling islands are equipped with spill kits and are controlled through a centrally located keypad. The fueling stations are not covered and the area is graded to prevent runoff. There is a ½ inch deep, three-inch wide channel that has been cut into the asphalt in a 10-foot perimeter outside the fueling islands to catch any small spills that may occur during the fueling of vehicles. This area drains to the main storm drain system discharging through AOF1 and drainage area 3.
2.4.14 Magnesium Chloride Tanks The Adams Street facility houses six (6) 10,000-gallon magnesium chloride tanks. The tanks are stored in concrete secondary containment with drain valves remaining closed. Drain valves are to only be opened after careful inspection to ensure there are no contaminants in the collected rainwater. Inflow and
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Photos 15-17 from left to right, A-21, fueling islands, and magnesium chloride tanks
2.4.15 Sanders Racks Sander racks house the sand and sand/salt dispersing equipment (spreaders) that can be attached to dump trucks. The spreaders are operated by hydraulics and occasionally residual hydraulic oil may seep out of the lines. It is the operator’s responsibility to ensure hydraulic lines on the spreaders are fully empty before storage. If any drips are encountered, absorbent pads or floor dry will be used to clean up and disposed of properly. Runoff from this area enters the adjacent storm drain system in drainage area 3 discharging to the Boise river via AOF1.
2.4.16 Material Storage Piles Material storage piles are located on the northwest side of the site. Examples of materials stored include sand, gravel chips, fill, rock, woody debris, excavated materials, and sediment debris pile. Storage of erodible materials should be located away from storm drains and be kept in a neat organized fashion. A berm is installed that wraps around the stockpiles to ensure runoff does not enter the adjacent storm drain system. Stormwater runoff that is collected from this area is removed using sweeper trucks periodically when pooling is observed. If the berm was to fail, runoff the area would enter the adjacent storm drain system in in drainage area 3 discharging to the Boise river via AOF1.
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Photos 18-19 from left to right, sanders rack and material storage piles
2.4.17 Wash Bays & Decant Station The facility has a wash bay & truck decant station located to the east of building A-15 and north of the magnesium chloride tanks. Liquid waste from this system is conveyed to discharge to the City of Garden City Sanitary Sewer System. Liquid and solid waste from sweepers and vacuum trucks are removed from the equipment at the decant station which then passes through a rock filter prior to being conveyed to the pump and treatment system. When deemed necessary, by the Broom Crew Chief, solids that settle at the bottom of the decant station are collected, dried, and hauled off-site to the appropriate disposal location. A max fill line is painted along the walls of the decant structure, to depict when to stop using the station and reduce the risk of an overflow event. The wash bay station includes the area just north of the magnesium chloride tanks. The area is used to washout sweeper trucks after dropping larger sediment at the decant station. The decant and wash bay liquid waste is comingled in structure 18 prior to being pumped in the 18,000 gallon above ground weir tank. The weir tank was installed in November of 2018 to increase settling time of liquids prior to being discharge to the City of Garden City Sanitary Sewer. Liquids from this operation are designed to drain to the treatment system and ultimately the sanitary sewer. It is important staff demonstrate good housekeeping to ensure runoff stays contained and does not discharge to the storm drain system. In general, whether it be wastewater or stormwater runoff was to bypass the installed system, runoff from this area would either discharge to AOF1 or AOF2 depending on the flow direction.
Photo 20. Decant Station
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Diagram 1. Decant & Wash Bay Treatment System
2.4.18 Pump Shed A pump shed is located between the decant station and magnesium chloride tanks. This shed has a well that can pump an upwards of 400 gallons a minute. Operators use the shed to fill and washout out their equipment throughout the day.
2.4.19 Containment Areas There are two outdoor containment areas located on the western border of the facility. Both areas contain chip seal related equipment. During the winter, equipment is stored empty. However, during chip seal season, equipment trailers may contain up to 250 gallons of differing types of chipping oil. The containment berm is designed to store up to approximately 3,400 gallons of liquid. Distributor trucks only contain minor residual and are stored on drip pad. If there was a containment failure, these areas would discharge to drainage area 3 and ultimately the Boise River via AOF1.
Photos 21. Distributor truck pad
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Section 3: Stormwater Control Measures This section discusses the day-to-day operations, procedures, and Best Management Practices (BMPs) implemented at the facility for good housekeeping and pollution prevention.
3.1 Minimize Exposure The following structural controls and BMPs are used to minimize the exposure of industrial activities to rain, snow, snowmelt, and runoff.
3.1.1 Non-Stormwater Discharges to Drains Storm drains within the facility are regularly inspected and cleaned out to reduce potential sediment entering the area. Discharges to Waters of the State can occur via the storm drain system.
• Storm drains within the facility should have fabric catch basin inserts (witches’ hats) or above grate protection. • Above grate protection and catch basin inserts should be inspected monthly and replaced or cleaned if excess sediment has built up. • Sediment buildup around the catch basins should be regularly inspected and removed. • Ensure stockpiles and adjacent materials are properly contained to limit the amount of non- stormwater discharging to the system.
If spills or non-stormwater discharges to drains are observed, refer to the SPCC and/or ASPP for appropriate reporting and cleanup procedures.
3.1.2 Outdoor Storage of Raw Materials Raw materials that are stored outside on the site include soil, chips, debris, spoils, and aggregate. To minimize exposure and protect materials during rain, snow, and wind the following are to be considered:
• Sweep paved areas weekly and as needed to reduce sediment accumulation. • Stockpiles should not be placed adjacent to catch basins. If placed adjacent to catch basins, berms shall be installed around the pile to reduce runoff potential. • Spill kits with clean up materials shall be stored adjacent to outdoor storage areas. • Prior to rain event, stockpiles may be covered to reduce run-off. • Salt shall always be stored within the salt storage shed, A-21.
3.2 Good Housekeeping The following BMPs are implemented onsite to reduce exposed areas and ensure the site maintains good housekeeping practices.
3.2.1 Vehicle and Equipment Fueling Vehicle and equipment fueling are closely regulated to reduce the potential of gas or diesel from entering the system. A ½ inch deep, 3-inch wide channel has been cut into the asphalt in a 10-foot perimeter outside the fueling islands to catch small spills that may occur during the fueling of vehicles.
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• There are spill kits located at the fueling station to mitigate leaks or drips. • Spill kit contents includes absorbent pads, booms, pillows, quick-dry, goggles, gloves, and disposal bag. • Additional spill kit supplies are in the mechanics shop or weld shop for floor dry. • Employees are instructed to stay with the vehicle while fueling and avoid topping off and are trained yearly in proper fueling and cleanup procedures. Additionally, a SOP for fueling has been created and is available for employee viewing. • Additional spill prevention and tanker delivery procedures are located in the Adams SPCC plan.
3.2.2 Vehicle and Equipment Cleaning Vehicles and equipment are cleaned at the wash bay and decant station. Water from this system is discharged to the sanitary sewer system.
• The area is paved, regularly swept, and sloped for wash water collection.
3.2.3 Outdoor Loading and Unloading of Materials Below are the minimum considerations for loading and unloading material.
• Ensure forklifts operators are trained. • Maintain tidiness of disposal areas. • Limit delivery vehicle contents when storm drains are adjacent. • If leaks occur during transfer contain using appropriate spill cleanup materials with nearby spill kit and report as necessary according to the SPCC. • During dry weather, move stockpiles slowly to reduce generating dust.
3.2.4 Waste Handling and Disposal An important part of the facilities operations includes waste tracking including generation, storage, disposal, recycling, and reuse. Waste streams are characterized prior to disposal and tracking logs are located in the SWPPP binder onsite.
• Chemicals, materials, quantities, and Safety Data Sheets (SDS) are stored onsite. • Storage containers are inspected regularly to determine container integrity, identify any leaks or spills, and ensure lids are secure. • Stored Materials should be housed on appropriate secondary containment pallets. • If stored outside scrap metal and other waste should be covered. • Less toxic substitute materials may be used when deemed possible.
3.2.5 Contaminated or Erodible Surface Areas Sediment can be transported to receiving waters through erosion of unpaved areas of the facility, permanent sand and gravel storage and temporary stockpiles.
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• Keep erodible material as far away as possible from catch basins. • Consider use of check dams to dissipate sediment in channelized areas. • Consider covering piles with plastic tarps or installing berms around the perimeter if sediment discharges continues to be observed. • Inspect and maintain catch basin inserts that are collecting sediment. • Maintain raised berms around the perimeter to keep stormwater onsite. • Maintain outfalls with rip rap as needed to reduce velocity and prevent erosion.
3.3 Maintenance The following procedures and BMPs are in place to maintain site equipment and reduce the potential of spills and leaks.
3.3.1 Vehicle and Equipment Maintenance and Repair Vehicles and equipment maintenance and repair is necessary for an organized facility. Vehicles and heavy machinery go through a rigorous maintenance screening prior to use to ensure the equipment is functioning as designed and there are no leaks.
• Prior to use, vehicles and equipment are inspected for leaks and drips. • When vehicle maintenance is required, vehicles are stored inside the mechanics shop. • Drip pans may be placed under vehicles or equipment if leaks are a concern. • Drip pans associated with this activity should be properly disposed of in a timely fashion. • Spill kit materials are located in the mechanics shops and placed throughout the facility for use as needed.
3.3.2 Building and Ground Maintenance Building and ground maintenance practices are important to reduce potential stormwater runoff impacts. Keeping areas clean will prevent the spread of pollutant containing material. Extra attention to surfaces can significantly reduce pollutant wash-off. In addition, an orderly work environment will also reduce the chance for inadvertent spills. The following good housekeeping practices are employed onsite:
• Keep outdoor work areas neat and organized. • Drums, containers, and chemicals will be stored with lids closed, labeled, and located in the secondary containment shed (A-18). • Sediment residue will be swept in a timely fashion to reduce potential contact with stormwater run-off and reduce vehicle tracking. If vehicle or machinery tracking becomes an issue, the Broom Crew Chief will be notified, and a sweeper will clean the area. • Trash, floatables, and debris will be contained with lid shut and regularly disposed of. • Vehicles and equipment are regularly maintained to ensure no leaks or drips. • Absorbent material will be used on minor drips and leaks around the facility and disposed of properly.
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• During the summer if dust generation becomes an issue, vehicles and machinery will reduce speeds. If the problem continues, stockpiles may be sprayed down with clean water. • Paved areas around the facility are swept weekly to reduce vehicle tracking with addition rounds as needed throughout the week.
3.3.3 Building Repair, Remodeling, & Construction BMP 16 is essential for reducing discharge of pollutants to stormwater related to repair, remodel, and construction.
While buildings are under construction it will be important to remember the following:
• Cover stockpiles as necessary to reduce soil exposure footprint. • Place all liquid or hazardous materials in secondary containment adequate for material size and handled according to the Safety Data Sheets (SDS). • Protect catch basins using inlet protection and avoiding hosing the area down. • Appropriately store and dispose of waste materials. • Wash water-based paint brushes should be discharged to the sanitary sewer.
3.4 Spill Prevention and Response ACHD commits the manpower, equipment, and materials required to expeditiously control and remove any quantity of spills that could potentially be harmful to health or the environment. Spill kits are located throughout the facility and locations are identified in Appendix C. Following 40 CFR 112, ACHD has implemented a Spill Prevention Control and Countermeasures Plan (SPCC) and is responsible to report any leak, spill, or release containing a hazardous substance or oil in an amount equal to or greater than the established reporting quantity during a 24-hour period. For further information regarding spills, clean up, and reporting procedures within the facility, refer to the Spill Prevention Control and Countermeasures Plan (SPCC) and Accidental Spill Prevention Plan (ASPP). Copies of the plans are in the superintendent’s office.
3.5 Erosion and Sediment Controls Erosion and Sediment Control BMPs are implemented around the site as deemed necessary. BMPs implemented onsite include but are not limited to:
• Non-stormwater Discharges to Drain see section 3.1.1. • Outdoor Storage of Raw Materials see section 3.1.2. • Contaminated or Erodible Surfaces see section 3.2.5.
If channelized flows are observed, check dams may be installed to dissipate sediment and reduce flow velocity. If at any point operations at the facility are modified, additional BMPs may be installed as necessary and the SWPPP will be modified to include the changes.
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3.6 Management of Runoff Stormwater from the facility is conveyed to the Boise River via catch basin inserts & sand and grease traps throughout the paved areas. Section 1.5. includes the specific regarding the drainage areas and section 1.6. for discharge locations.
3.7 Salt Storage Salt and salt with sand mixture is used on roadways as deicer. When this material is exposed to stormwater it can transport chloride pollution to waterways and into groundwater. The following practices can help keep salt and sand/salt piles from being transported by stormwater: • Keep raw salt in covered salt shed. • Sweep any salt seen migrating outside of the covered shed back into a covered area. • Consider a door or maintain existing berms on the salt shed to keep materials inside. • Keep sand/salt piles as far away as possible from catch basins. All salt and salt with sand mixture is stored in structure A-21, see section 2.4.12 for structure specifics.
3.8 Dust Generation and Vehicle Tracking During summer months moving stockpiles may generate dust and become an air quality issue. Additionally after rain events, vehicle tracking may be noticeable. See section 3.3.2. Building and Ground Maintenance for specific procedures in place at the facility to reduce the possibility of dust generation and vehicle tracking.
3.9 Employee Training Training consists of Pollution Prevention and Good Housekeeping for Municipal Operations training for new employees within 30 days of hiring and refresher training for Adams employees is held annually addressing: • Adams SWPPP requirements and critical BMPs • Good Housekeeping • Spill Prevention and Response • Vehicle Fueling • Vehicle and Equipment Maintenance • Vehicle and Equipment Washing • Vehicle Tracking • Materials Management • Waste Management • Municipal Facility Maintenance • Parking Lots and Streets • Storm Drain System Cleaning • Landscaping and Grounds Maintenance • Working over or Near Waters • Air quality conditions for the day
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Training will be coordinated with the Safety and Training Coordinator and must be documented and recorded in the ACHD training compliance database.
Section 4: Inspections and Records
4.1 Inspections and Assessments Monthly inspections are conducted to ensure BMPs are being implemented and are adequate for preventing stormwater pollutants discharging offsite. The Maintenance Superintendent, Crew Chief, or Leadworker are responsible for conducting the inspections or delegating inspection responsibilities to qualified staff members.
Inspections are conducted to: • Verify that the description of the storm drain system in section 1.5 Drainage Areas and Appendices B and C are accurate. If additional BMPs are installed, modify figures as necessary for accuracy. • Verify that BMPs are being implemented, maintained, and are functioning adequately. • Inspect all drainage structures including outfalls for defects and maintenance needs. • List observations of floating materials, oil and grease, turbidity, odor, etc. in drainage structures.
Inspections will be documented and recorded on Stormwater Routine Facility Inspection Report in Appendix D. If at any time a BMP is not effective, it must be repaired or maintained before the next anticipated storm event. If maintenance prior to the next storm event is not possible, maintenance must be completed as soon as possible and documented on the inspection form for the extended repair schedule. In the interim, alternative measures must be implemented to ensure that water quality is not degraded by stormwater discharges from the facility.
4.2 Record Retention Records must be retained for a minimum of five (5) years. Adams facility records will be retained by the Adams Maintenance Superintendent or Training. Records include but are not limited to: • Inspection Forms • Training Records • Maintenance Records • Waste Disposal Records • Analytical Reports for Lab Analysis of Water or Waste Characterization • Waste Manifest Logs
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Section 5: Documentation to Support Eligibility Considerations under Other Federal Laws
5.1 Documentation Regarding Endangered Species According to U.S. Department of the Interior, Fish and Wildlife Service, there are no endangered species or critical habitats adjacent to the facility, see Appendix E. List of threatened and endangered species, August 13th, 2019. However, the Slickspot Peppergrass and the Yellow-billed Cuckoo are threatened. If additional information becomes available contradicting the above statement, the SWPPP will be modified to include any pertinent information.
5.2 Documentation Regarding Historic Properties To the best of the writers’ knowledge there are no historical properties within the facility. If additional information becomes available contradicting the above statement, the SWPPP will be modified to include any pertinent information.
Section 6: Corrective Actions To the best of the writers’ knowledge there have been two reportable corrective actions in the last three years relating to the discharge of wastewater to the City of Garden City Sanitary Sewer. If additional information becomes available contradicting the above statement, the SWPPP will be modified to include any pertinent information.
Section 7: SWPPP Certifications The Environmental Programs Coordinator certifies this SWPPP includes all currently available information related to environmental compliance of the facility. If additional information becomes available contradicting the above statement, the SWPPP will be modified to include any pertinent information.
Section 8: SWPPP Modifications This SWPPP is a living document and can be modified as facility operations are altered. Alterations include but are not limited to new structures, construction, additional BMPs, or documented spills. Additionally, the SWPPP will be updated if new information regarding facility compliance or documentation is deemed necessary.
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Section 9: References
Environmental Protection Agency. EPA Industrial SWPPP Template. 2015. https://www.epa.gov/sites/production/files/2015-11/msgp2015_swppptemplate.docx. Environmental Protection Agency. When are You Required to Report an Oil Spill and Hazardous Substance Release. 14 March, 2017. www.epa.gov/emergency-response/when-are-you-required-report-oil-spill-and-hazardous- substance-release. State of Idaho, Department of Environmental Quality. Catalog of Stormwater Best Management Practices for Idaho Cities and Counties. 2005. http://www.deq.idaho.gov/media/622263-Stormwater.pdf. State of Idaho, Department of Environmental Quality. Idaho Catalog of Storm Water Best Management Practices, draft. 2019. https://www.deq.idaho.gov/media/60183104/idaho-catalog-storm-water-bmps-draft-0719.pdf
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Appendix A. Vicinity Map
A D A C O U N T Y,, II D A H O
EAGLE 8
STAR GARDEN CITY
MERIDIAN BOISE
P rr o jj e c tt L o c a t i o n KUNA L o c a t i o n
1 in = 12 miles
P r o j e c t L o c a t i o n
Appendix A ADAMS YARD SWPPP Vicinity Map
Adams Maintenance Site
September 23, 2019
1 inch = 2,000 feet Map is intended as ± visual reference only
Sources: Esri, Garmin, USGS, NPS
Appendix B. Drainage Areas and Outfall Map
AOF1 AOF2 1 Boise River LEGEND kj Stormwater Outfalls 2!! Manhole rn) ) Storm Drain Inlets 52 51 ×! ! Storm Drain Sedimentation Box Wash Station ×! ! Sanitary Sewer Sedimentatio2n Box Gravel A-20 A-19 Stockpile A-15 Drainage 2 A-18 Sanitary Sewer Sedimentation Box 20 Decant A-17 rn) ) Injection Well 50 - Combo Box Station 45 6 Storm Drain Pipe 3 19 A B 46 A-12 PS-1 Sanitary Sewer Pipe Sweeper and Utility Wash C Pump Debris Stockpiles Station Shed A-12.1 Drainage Direction 21 24 25 A-13 18 22 17 26 Drainage 1 Seepage Bed A & B 23 A-14 A & B Drainage Areas 36 34 Magnesium Chloride Tank d Stockpile Storage Pad and Berm 47 x m .
Sander Racks B x 43 A-11 i d
53 n e
16.1 p R 32 p e 16 33 A e 31 40 _ 15 e
d t i
14 S d A & B 35 28 44 r Drainage 3 27 a Y
37 38 39 s 41 m a
4 30 29 d A
42 \ e t i S
e c n a n e t n i a
A-21 M
s m a d A A-10 \ s p a M
A-8 e A-7 t A-9 i S Gate 1 Gate 2 Gate 3 e c
Appendix B n
A-15 a n e t n 7 i ADAMS YARD SWPPP 13 a M \
8 k s Drainage Areas and Outfall Map 6 e 11 D p
10 l
5 e
12 H \
Adams Maintenance Site l
9 i a G
Adams \ :
2016 Aerial + 2019 Yard Overlay H
: h
Oct 24, 2019 t a P
1 inch = 75 feet Map is intended as t
visual reference only n
± e m u c h o t D
8 h
3
t
7 3
Appendix C. Site Map Willowbar
Mixed Earthen Berm Rocks Propane Tank Gravel A-20 Stockpile A-15 A-19 Decant A-18 A-17 Station Paint Storage HS-1 A-12 A-12.1 Sweeper & Wash Station A-13 A Weir Tank PS-1 Utility Debris s
p Stockpiles h A-14 a
l t
R Secondary B Mag-Chloride e
e r e m Tanks d Containment Berm Sander A-11 Racks
Chip Seal
Truck Berm d x
Fueling m . C x i
Islands d n e p p A _ e t i S d r a
A-8 Y s
A-21 m a d A \ e t A-10 i S
e c n a n e t n i
A-7 a M
s m
Appendix C a d A \
Gate 1 Gate 2 Gate 3 s p
ADAMS YARD SWPPP a M
e t i S
Site Map e c n a n e Adams Maintenance Site t n i a M \ k s
Spill Kit e D p l
Adams e H \ l i a
2016 Aerial + 2019 Yard Overlay G
\ h
: t H
Oct 24, 2019 :
h 7 h t
t 3 a
Map is intended as 8 P
1 inch = 75 feet t 3 visual reference only n
± e m u c o D
Appendix D. Stormwater Routine Facility Inspection Form
Appendix C - Stormwater Routine Facility Inspection Report Form Stormwater Routine Facility Inspection Report General Information Facility Name Adams Street Maintenance/Traffic Yard Date of Inspection Start/End Time Inspector’s Name(s) Inspector’s Title(s) Weather Information Weather at time of this inspection? Clear Cloudy Rain Sleet Fog Snow High Winds Other: Temperature:
Have any previously unidentified discharges of pollutants occurred since the last inspection? Yes No If yes, describe:
Are there any discharges occurring at the time of inspection? Yes No If yes, describe:
Control Measures • Describe corrective actions initiated, date completed, and note the person that completed the work in the Corrective Action Log. Structural Control Control If No, In Need of Corrective Action Needed and Notes Measure Measure is Maintenance, (identify needed maintenance and repairs, or any Operating Repair, or failed control measures that need replacement) Effectively? Replacement? 1 Catch Basin / Inlet Yes No Maintenance Protection Repair Replacement 2 Wash Bay Inlets Yes No Maintenance Repair Replacement 3 Diesel Spill Kit Yes No Maintenance Repair Replacement 4 Gasoline Spill Kit Yes No Maintenance Repair Replacement 5 Adams Outfall One Yes No Maintenance Repair Replacement 6 Adams Outfall Two Yes No Maintenance Repair Replacement 7 Yes No Maintenance Repair Replacement 8 Yes No Maintenance Repair Replacement 9
Areas of Industrial Materials or Activities exposed to stormwater Below are some general areas that should be assessed during routine inspections. Customize this list as needed for the specific types of industrial materials or activities at your facility.
Area/Activity Inspected? Controls Corrective Action Needed and Notes Adequate (appropriate, effective, and operating)? 1 Sander Racks Yes No N/A Yes No
2 Dewatering Pad / Decant Yes No N/A Yes No Basins
3 Fueling areas Yes No N/A Yes No
4 Vehicle and Equipment Yes No N/A Yes No Washing Areas
5 Waste Handling and Yes No N/A Yes No Disposal Areas
6 Erodible Yes No N/A Yes No Areas/Construction
7 Non-stormwater/ Illicit Yes No N/A Yes No Connections
8 Salt Storage Piles or Pile Yes No N/A Yes No Containing Salt
9 Dust Generation and Yes No N/A Yes No Vehicle Tracking
10 Magnesium Chloride Yes No N/A Yes No Tanks and Secondary Containment
11 (Other) Yes No N/A Yes No
12 (Other) Yes No N/A Yes No
Non-Compliance
2
Describe any incidents of non-compliance observed and not described above:
Additional Control Measures Describe any additional control measures needed to comply with the permit requirements:
Notes Use this space for any additional notes or observations from the inspection:
3
Appendix E. IPAC Resource List
United States Department of the Interior FISH AND WILDLIFE SERVICE Idaho Fish And Wildlife Office 1387 South Vinnell Way, Suite 368 Boise, ID 83709-1657 Phone: (208) 378-5243 Fax: (208) 378-5262
In Reply Refer To: August 13, 2019 Consultation Code: 01EIFW00-2019-SLI-1656 Event Code: 01EIFW00-2019-E-03503 Project Name: Adams ST Facility
Subject: List of threatened and endangered species that may occur in your proposed project location, and/or may be affected by your proposed project
To Whom It May Concern:
The enclosed species list identifies threatened, endangered, proposed and candidate species, as well as proposed and final designated critical habitat, that may occur within the boundary of your proposed project and/or may be affected by your proposed project. The species list fulfills the requirements of the U.S. Fish and Wildlife Service (Service) under section 7(c) of the Endangered Species Act (Act) of 1973, as amended (16 U.S.C. 1531 et seq.).
New information based on updated surveys, changes in the abundance and distribution of species, changed habitat conditions, or other factors could change this list. Please feel free to contact us if you need more current information or assistance regarding the potential impacts to federally proposed, listed, and candidate species and federally designated and proposed critical habitat. Please note that under 50 CFR 402.12(e) of the regulations implementing section 7 of the Act, the accuracy of this species list should be verified after 90 days. This verification can be completed formally or informally as desired. The Service recommends that verification be completed by visiting the ECOS-IPaC website at regular intervals during project planning and implementation for updates to species lists and information. An updated list may be requested through the ECOS-IPaC system by completing the same process used to receive the enclosed list.
The purpose of the Act is to provide a means whereby threatened and endangered species and the ecosystems upon which they depend may be conserved. Under sections 7(a)(1) and 7(a)(2) of the Act and its implementing regulations (50 CFR 402 et seq.), Federal agencies are required to utilize their authorities to carry out programs for the conservation of threatened and endangered species and to determine whether projects may affect threatened and endangered species and/or designated critical habitat. 08/13/2019 Event Code: 01EIFW00-2019-E-03503 2
A Biological Assessment is required for construction projects (or other undertakings having similar physical impacts) that are major Federal actions significantly affecting the quality of the human environment as defined in the National Environmental Policy Act (42 U.S.C. 4332(2) (c)). For projects other than major construction activities, the Service suggests that a biological evaluation similar to a Biological Assessment be prepared to determine whether the project may affect listed or proposed species and/or designated or proposed critical habitat. Recommended contents of a Biological Assessment are described at 50 CFR 402.12.
If a Federal agency determines, based on the Biological Assessment or biological evaluation, that listed species and/or designated critical habitat may be affected by the proposed project, the agency is required to consult with the Service pursuant to 50 CFR 402. In addition, the Service recommends that candidate species, proposed species and proposed critical habitat be addressed within the consultation. More information on the regulations and procedures for section 7 consultation, including the role of permit or license applicants, can be found in the "Endangered Species Consultation Handbook" at: http://www.fws.gov/endangered/esa-library/pdf/TOC-GLOS.PDF
Please be aware that bald and golden eagles are protected under the Bald and Golden Eagle Protection Act (16 U.S.C. 668 et seq.), and projects affecting these species may require development of an eagle conservation plan (https://ww.fws.gov/migratorybirds/pdf/management/ eagleconservtionplanguidance.pdf). Additionally, wind energy projects should follow the wind energy guidelines (https://www.fws.gov/ecologica-servces/energy-develpment/wind/html) for minimizing impacts to migratory birds and bats.
Guidance for minimizing impacts to migratory birds for projects including communications towers (e.g., cellular, digital television, radio, and emergency broadcast) can be found at: https:// www.fws.ov/bidsbird-enthusiasts/threats-to-birds/collisions/communication-towers.php.
We appreciate your concern for threatened and endangered species. The Service encourages Federal agencies to include conservation of threatened and endangered species into their project planning to further the purposes of the Act. Please include the Consultation Tracking Number in the header of this letter with any request for consultation or correspondence about your project that you submit to our office.
Attachment(s):
ƒ Official Species List ƒ USFWS National Wildlife Refuges and Fish Hatcheries ƒ Migratory Birds ƒ Wetlands
08/13/2019 Event Code: 01EIFW00-2019-E-03503 1
Official Species List This list is provided pursuant to Section 7 of the Endangered Species Act, and fulfills the requirement for Federal agencies to "request of the Secretary of the Interior information whether any species which is listed or proposed to be listed may be present in the area of a proposed action".
This species list is provided by:
Idaho Fish And Wildlife Office 1387 South Vinnell Way, Suite 368 Boise, ID 83709-1657 (208) 378-5243
08/13/2019 Event Code: 01EIFW00-2019-E-03503 2
Project Summary Consultation Code: 01EIFW00-2019-SLI-1656
Event Code: 01EIFW00-2019-E-03503
Project Name: Adams ST Facility
Project Type: TRANSPORTATION
Project Description: Adams ST Facility
Project Location: Approximate location of the project can be viewed in Google Maps: https:// www.google.com/maps/place/43.62981050851397N116.23872647991463W
Counties: Ada, ID
08/13/2019 Event Code: 01EIFW00-2019-E-03503 3
Endangered Species Act Species There is a total of 2 threatened, endangered, or candidate species on this species list.
Species on this list should be considered in an effects analysis for your project and could include species that exist in another geographic area. For example, certain fish may appear on the species list because a project could affect downstream species.
IPaC does not display listed species or critical habitats under the sole jurisdiction of NOAA Fisheries1 , as USFWS does not have the authority to speak on behalf of NOAA and the Department of Commerce.
See the "Critical habitats" section below for those critical habitats that lie wholly or partially within your project area under this office's jurisdiction. Please contact the designated FWS office if you have questions.
1. NOAA Fisheries, also known as the National Marine Fisheries Service (NMFS), is an office of the National Oceanic and Atmospheric Administration within the Department of Commerce.
Birds NAME STATUS Yellow-billed Cuckoo Coccyzus americanus Threatened Population: Western U.S. DPS There is proposed critical habitat for this species. Your location is outside the critical habitat. Species profile: https://ecos.fws.gov/ecp/species/3911
Flowering Plants NAME STATUS Slickspot Peppergrass Lepidium papilliferum Threatened There is proposed critical habitat for this species. Your location is outside the critical habitat. Species profile: https://ecos.fws.gov/ecp/species/4027
Critical habitats THERE ARE NO CRITICAL HABITATS WITHIN YOUR PROJECT AREA UNDER THIS OFFICE'S JURISDICTION.
08/13/2019 Event Code: 01EIFW00-2019-E-03503 1
USFWS National Wildlife Refuge Lands And Fish Hatcheries Any activity proposed on lands managed by the National Wildlife Refuge system must undergo a 'Compatibility Determination' conducted by the Refuge. Please contact the individual Refuges to discuss any questions or concerns.
THERE ARE NO REFUGE LANDS OR FISH HATCHERIES WITHIN YOUR PROJECT AREA.
08/13/2019 Event Code: 01EIFW00-2019-E-03503 1
Migratory Birds Certain birds are protected under the Migratory Bird Treaty Act1 and the Bald and Golden Eagle Protection Act2 .
Any person or organization who plans or conducts activities that may result in impacts to migratory birds, eagles, and their habitats should follow appropriate regulations and consider implementing appropriate conservation measures, as described below.
1. The Migratory Birds Treaty Act of 1918. 2. The Bald and Golden Eagle Protection Act of 1940. 3. 50 C.F.R. Sec. 10.12 and 16 U.S.C. Sec. 668(a)
The birds listed below are birds of particular concern either because they occur on the USFWS Birds of Conservation Concern (BCC) list or warrant special attention in your project location. To learn more about the levels of concern for birds on your list and how this list is generated, see the FAQ below. This is not a list of every bird you may find in this location, nor a guarantee that every bird on this list will be found in your project area. To see exact locations of where birders and the general public have sighted birds in and around your project area, visit the E-bird data mapping tool (Tip: enter your location, desired date range and a species on your list). For projects that occur off the Atlantic Coast, additional maps and models detailing the relative occurrence and abundance of bird species on your list are available. Links to additional information about Atlantic Coast birds, and other important information about your migratory bird list, including how to properly interpret and use your migratory bird report, can be found below.
For guidance on when to schedule activities or implement avoidance and minimization measures to reduce impacts to migratory birds on your list, click on the PROBABILITY OF PRESENCE SUMMARY at the top of your list to see when these birds are most likely to be present and breeding in your project area.
BREEDING NAME SEASON Bald Eagle Haliaeetus leucocephalus Breeds Dec 1 to This is not a Bird of Conservation Concern (BCC) in this area, but warrants attention Aug 31 because of the Eagle Act or for potential susceptibilities in offshore areas from certain types of development or activities. https://ecos.fws.gov/ecp/species/1626
Brewer's Sparrow Spizella breweri Breeds May 15 This is a Bird of Conservation Concern (BCC) only in particular Bird Conservation Regions to Aug 10 (BCRs) in the continental USA https://ecos.fws.gov/ecp/species/9291
08/13/2019 Event Code: 01EIFW00-2019-E-03503 2
BREEDING NAME SEASON Clark's Grebe Aechmophorus clarkii Breeds Jan 1 to This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA Dec 31 and Alaska.
Golden Eagle Aquila chrysaetos Breeds Dec 1 to This is a Bird of Conservation Concern (BCC) only in particular Bird Conservation Regions Aug 31 (BCRs) in the continental USA https://ecos.fws.gov/ecp/species/1680
Lewis's Woodpecker Melanerpes lewis Breeds Apr 20 This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA to Sep 30 and Alaska. https://ecos.fws.gov/ecp/species/9408
Long-billed Curlew Numenius americanus Breeds Apr 1 to This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA Jul 31 and Alaska. https://ecos.fws.gov/ecp/species/5511
Olive-sided Flycatcher Contopus cooperi Breeds May 20 This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA to Aug 31 and Alaska. https://ecos.fws.gov/ecp/species/3914
Sage Thrasher Oreoscoptes montanus Breeds Apr 15 This is a Bird of Conservation Concern (BCC) only in particular Bird Conservation Regions to Aug 10 (BCRs) in the continental USA https://ecos.fws.gov/ecp/species/9433
Willow Flycatcher Empidonax traillii Breeds May 20 This is a Bird of Conservation Concern (BCC) only in particular Bird Conservation Regions to Aug 31 (BCRs) in the continental USA https://ecos.fws.gov/ecp/species/3482
Probability Of Presence Summary The graphs below provide our best understanding of when birds of concern are most likely to be present in your project area. This information can be used to tailor and schedule your project activities to avoid or minimize impacts to birds. Please make sure you read and understand the FAQ ³Proper Interpretation and Use of Your Migratory Bird Report´ before using or attempting to interpret this report.
Probability of Presence ( )
Each green bar represents the bird's relative probability of presence in the 10km grid cell(s) your project overlaps during a particular week of the year. (A year is represented as 12 4-week
08/13/2019 Event Code: 01EIFW00-2019-E-03503 3 months.) A taller bar indicates a higher probability of species presence. The survey effort (see below) can be used to establish a level of confidence in the presence score. One can have higher confidence in the presence score if the corresponding survey effort is also high.
How is the probability of presence score calculated? The calculation is done in three steps:
1. The probability of presence for each week is calculated as the number of survey events in the week where the species was detected divided by the total number of survey events for that week. For example, if in week 12 there were 20 survey events and the Spotted Towhee was found in 5 of them, the probability of presence of the Spotted Towhee in week 12 is 0.25. 2. To properly present the pattern of presence across the year, the relative probability of presence is calculated. This is the probability of presence divided by the maximum probability of presence across all weeks. For example, imagine the probability of presence in week 20 for the Spotted Towhee is 0.05, and that the probability of presence at week 12 (0.25) is the maximum of any week of the year. The relative probability of presence on week 12 is 0.25/0.25 = 1; at week 20 it is 0.05/0.25 = 0.2. 3. The relative probability of presence calculated in the previous step undergoes a statistical conversion so that all possible values fall between 0 and 10, inclusive. This is the probability of presence score. Breeding Season ( ) Yellow bars denote a very liberal estimate of the time-frame inside which the bird breeds across its entire range. If there are no yellow bars shown for a bird, it does not breed in your project area.
Survey Effort ( ) Vertical black lines superimposed on probability of presence bars indicate the number of surveys performed for that species in the 10km grid cell(s) your project area overlaps. The number of surveys is expressed as a range, for example, 33 to 64 surveys.
No Data ( ) A week is marked as having no data if there were no survey events for that week.
Survey Timeframe Surveys from only the last 10 years are used in order to ensure delivery of currently relevant information. The exception to this is areas off the Atlantic coast, where bird returns are based on all years of available data, since data in these areas is currently much more sparse.
probability of presence breeding season survey effort no data
08/13/2019 Event Code: 01EIFW00-2019-E-03503 4
SPECIES JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC Bald Eagle Non-BCC Vulnerable
Brewer's Sparrow BCC - BCR
Clark's Grebe BCC Rangewide (CON)
Golden Eagle BCC - BCR Lewis's Woodpecker BCC Rangewide (CON) Long-billed Curlew BCC Rangewide (CON) Olive-sided Flycatcher BCC Rangewide (CON) Sage Thrasher BCC - BCR
Willow Flycatcher BCC - BCR
Additional information can be found using the following links:
ƒ Birds of Conservation Concern http://www.fws.gov/birds/management/managed-species/ birds-of-conservation-concern.php ƒ Measures for avoiding and minimizing impacts to birds http://www.fws.gov/birds/ management/project-assessment-tools-and-guidance/ conservation-measures.php ƒ Nationwide conservation measures for birds http://www.fws.gov/migratorybirds/pdf/ management/nationwidestandardconservationmeasures.pdf
Migratory Birds FAQ Tell me more about conservation measures I can implement to avoid or minimize impacts to migratory birds. Nationwide Conservation Measures describes measures that can help avoid and minimize impacts to all birds at any location year round. Implementation of these measures is particularly important when birds are most likely to occur in the project area. When birds may be breeding in the area, identifying the locations of any active nests and avoiding their destruction is a very helpful impact minimization measure. To see when birds are most likely to occur and be breeding in your project area, view the Probability of Presence Summary. Additional measures and/or permits may be advisable depending on the type of activity you are conducting and the type of infrastructure or bird species present on your project site.
What does IPaC use to generate the migratory birds potentially occurring in my specified location?
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The Migratory Bird Resource List is comprised of USFWS Birds of Conservation Concern (BCC) and other species that may warrant special attention in your project location.
The migratory bird list generated for your project is derived from data provided by the Avian Knowledge Network (AKN). The AKN data is based on a growing collection of survey, banding, and citizen science datasets and is queried and filtered to return a list of those birds reported as occurring in the 10km grid cell(s) which your project intersects, and that have been identified as warranting special attention because they are a BCC species in that area, an eagle (Eagle Act requirements may apply), or a species that has a particular vulnerability to offshore activities or development.
Again, the Migratory Bird Resource list includes only a subset of birds that may occur in your project area. It is not representative of all birds that may occur in your project area. To get a list of all birds potentially present in your project area, please visit the AKN Phenology Tool.
What does IPaC use to generate the probability of presence graphs for the migratory birds potentially occurring in my specified location? The probability of presence graphs associated with your migratory bird list are based on data provided by the Avian Knowledge Network (AKN). This data is derived from a growing collection of survey, banding, and citizen science datasets .
Probability of presence data is continuously being updated as new and better information becomes available. To learn more about how the probability of presence graphs are produced and how to interpret them, go the Probability of Presence Summary and then click on the "Tell me about these graphs" link.
How do I know if a bird is breeding, wintering, migrating or present year-round in my project area? To see what part of a particular bird's range your project area falls within (i.e. breeding, wintering, migrating or year-round), you may refer to the following resources: The Cornell Lab of Ornithology All About Birds Bird Guide, or (if you are unsuccessful in locating the bird of interest there), the Cornell Lab of Ornithology Neotropical Birds guide. If a bird on your migratory bird species list has a breeding season associated with it, if that bird does occur in your project area, there may be nests present at some point within the timeframe specified. If "Breeds elsewhere" is indicated, then the bird likely does not breed in your project area.
What are the levels of concern for migratory birds? Migratory birds delivered through IPaC fall into the following distinct categories of concern:
1. "BCC Rangewide" birds are Birds of Conservation Concern (BCC) that are of concern throughout their range anywhere within the USA (including Hawaii, the Pacific Islands, Puerto Rico, and the Virgin Islands); 2. "BCC - BCR" birds are BCCs that are of concern only in particular Bird Conservation Regions (BCRs) in the continental USA; and
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3. "Non-BCC - Vulnerable" birds are not BCC species in your project area, but appear on your list either because of the Eagle Act requirements (for eagles) or (for non-eagles) potential susceptibilities in offshore areas from certain types of development or activities (e.g. offshore energy development or longline fishing). Although it is important to try to avoid and minimize impacts to all birds, efforts should be made, in particular, to avoid and minimize impacts to the birds on this list, especially eagles and BCC species of rangewide concern. For more information on conservation measures you can implement to help avoid and minimize migratory bird impacts and requirements for eagles, please see the FAQs for these topics.
Details about birds that are potentially affected by offshore projects For additional details about the relative occurrence and abundance of both individual bird species and groups of bird species within your project area off the Atlantic Coast, please visit the Northeast Ocean Data Portal. The Portal also offers data and information about other taxa besides birds that may be helpful to you in your project review. Alternately, you may download the bird model results files underlying the portal maps through the NOAA NCCOS Integrative Statistical Modeling and Predictive Mapping of Marine Bird Distributions and Abundance on the Atlantic Outer Continental Shelf project webpage.
Bird tracking data can also provide additional details about occurrence and habitat use throughout the year, including migration. Models relying on survey data may not include this information. For additional information on marine bird tracking data, see the Diving Bird Study and the nanotag studies or contact Caleb Spiegel or Pam Loring.
What if I have eagles on my list? If your project has the potential to disturb or kill eagles, you may need to obtain a permit to avoid violating the Eagle Act should such impacts occur.
Proper Interpretation and Use of Your Migratory Bird Report The migratory bird list generated is not a list of all birds in your project area, only a subset of birds of priority concern. To learn more about how your list is generated, and see options for identifying what other birds may be in your project area, please see the FAQ ³What does IPaC use to generate the migratory birds potentially occurring in my specified location´. Please be aware this report provides the ³probability of presence´ of birds within the 10 km grid cell(s) that overlap your project; not your exact project footprint. On the graphs provided, please also look carefully at the survey effort (indicated by the black vertical bar) and for the existence of the ³no data´ indicator (a red horizontal bar). A high survey effort is the key component. If the survey effort is high, then the probability of presence score can be viewed as more dependable. In contrast, a low survey effort bar or no data bar means a lack of data and, therefore, a lack of certainty about presence of the species. This list is not perfect; it is simply a starting point for identifying what birds of concern have the potential to be in your project area, when they might be there, and if they might be breeding (which means nests might be present). The list helps you know what to look for to confirm presence, and helps guide you in knowing when to implement conservation measures to avoid or minimize potential impacts from your project activities, should presence be confirmed. To learn more about conservation measures, visit the FAQ ³Tell
08/13/2019 Event Code: 01EIFW00-2019-E-03503 7 me about conservation measures I can implement to avoid or minimize impacts to migratory birds´ at the bottom of your migratory bird trust resources page.
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Wetlands Impacts to NWI wetlands and other aquatic habitats may be subject to regulation under Section 404 of the Clean Water Act, or other State/Federal statutes.
For more information please contact the Regulatory Program of the local U.S. Army Corps of Engineers District.
Please note that the NWI data being shown may be out of date. We are currently working to update our NWI data set. We recommend you verify these results with a site visit to determine the actual extent of wetlands on site.
FRESHWATER FORESTED/SHRUB WETLAND ƒ PFO1A
Appendix G. Additional BMP References
Volume 5: Commercial, Industrial, Residential Controls
Section 1: Introduction……………………………………………………………… 1 1.1 Organization…………………………………………………….. 2 1.2 Updates………………………………………………………….. 3
Section 2: Industrial Facilities……………………………………………………… 4 2.1 Industrial Controls...... ………….. 4 BMP 1: Loading Dock Design Features…………………… 5 BMP 2: Equipment Yard Design Features………………… 6 BMP 3: Fleet or Equipment Fueling Design Features…… 7 BMP 4: Access Roads and Rail Corridors………………… 8 2.2 Day-to-Day Operations for Industrial Sites…………………… 9 BMP 5: Non-Stormwater Discharges to Drains…………… 10 BMP 6: Vehicle and Equipment Fueling…………………… 12 BMP 7: Vehicle and Equipment Cleaning…………………. 14 BMP 8: Vehicle and Equipment Maintenance & Repair….. 15 BMP 9: Outdoor Loading/Unloading of Materials………….. 18 BMP 10: Outdoor Container Storage of Liquids…………….. 20 BMP 11: Outdoor Process Equipment……………………….. 24 BMP 12: Outdoor Storage of Raw Materials………………… 26 BMP 13: Waste Handling and Disposal……………………… 28 BMP 14: Contaminated or Erodible Surface Areas…………. 32 BMP 15: Building and Grounds Maintenance……………….. 34 BMP 16: Building Repair, Remodeling, & Construction……. 36 BMP 17: Employee Training………………………………….. 39 BMP 18: Spill Prevention Control and Cleanup……………. 40
Section 3: Commercial Facilities…………………………………………………….. 42 BMP 19: Restaurant Control Practices……………………………….. 44 BMP 20: Auto Repair and Maintenance Controls…………………… 46 BMP 21: Mobile and Surface Cleaning Control Practices…………... 48 BMP 22:Marinas…………………………………………………………51
Section 4: Residential Facilities……………………………………………………… 53 BMP 23: Automobile Maintenance……………………………………. 54 BMP 24: Home, Lawn, and Garden Care…………………………….. 56 BMP 25: Solid and Sanitary Waste Storage and Disposal…………. 59 BMP 26: Swimming Pool and Spa Maintenance……………………. 60 BMP 27: Household Hazardous Material Use and Disposal……….. 61 6HFWLRQ,QWURGXFWLRQ 7KHCatalog of Stormwater Best Management Practices for Idaho Cities and CountiesDVHULHVRIILYHFRPSDFWGLVFV &'V SURYLGHVWHFKQLFDO JXLGDQFHIRUFRQVWUXFWLRQVLWHGHVLJQDQGWKHVHOHFWLRQRIVWRUPZDWHUEHVW PDQDJHPHQWSUDFWLFHV %03V 7KHFDWDORJLVDJXLGDQFHGRFXPHQW FRQWDLQLQJYROXQWDU\FRQWUROVWKDWFRXOGEHIRUPDOO\DGRSWHGE\D MXULVGLFWLRQWRHVWDEOLVKVWDQGDUGVLIGHVLUHG0HDVXUHVVXFKDVWKRVH GHVFULEHGDQGRWKHUUHFRJQL]HGHTXLYDOHQWVVKRXOGEHXVHGWRPDQDJHWKH TXDQWLW\DQGTXDOLW\RIVWRUPZDWHUUXQRIIIURPODQGGHYHORSPHQW 7KLVLQIRUPDWLRQLVSULPDULO\LQWHQGHGIRUGHVLJQSURIHVVLRQDOV HJ ODQGVFDSHDUFKLWHFWVJHRORJLVWVHQJLQHHUVVRLOVFLHQWLVWVHWF DQGWKHLU FRQWUDFWRUV,WLVDOVRDSSOLFDEOHIRUORFDOSXEOLFRIILFLDOVRUVWDIIZKRDUH UHVSRQVLEOHIRUWKHUHYLHZDQGDSSURYDORIGHYHORSPHQWDSSOLFDWLRQV 7KHUHDUHVHYHUDOUHDVRQVZK\WHFKQLFDOJXLGDQFHUHJDUGLQJVWRUPZDWHU PDQDJHPHQWLVQHFHVVDU\ x ,GDKRUHPDLQVRQHRIWKHIDVWHVW JURZLQJVWDWHVLQWKHQDWLRQ7KH LQFUHDVHLQSRSXODWLRQOHDGVWRDQLQFUHDVHLQODQGGHYHORSPHQWD UHFRJQL]HGVRXUFHRIQRQSRLQWVRXUFHSROOXWLRQPRUHFRPPRQO\ WHUPHG³SROOXWHGUXQRII´7KHFDWDORJLQFOXGHV%03VWKDWKHOSWR SUHYHQWGLVFKDUJHRISROOXWDQWVIURPGHYHORSLQJDUHDVERWKGXULQJ WKHFRQVWUXFWLRQSKDVHDQGIRUWKHOLIHRIWKHGHYHORSPHQW7KH %03VFDQDOVREHXVHGWRUHGXFHSROOXWHGUXQRIIIURPH[LVWLQJ ODQGXVHV x 0DQ\ZDWHUERGLHVWKURXJKRXWWKHVWDWHDUHQRWLQFRPSOLDQFHZLWK VWDWHZDWHUTXDOLW\VWDQGDUGV%HQHILFLDOXVHVVXFKDVGRPHVWLF ZDWHUVXSSO\ILVKLQJVZLPPLQJERDWLQJDQGDJULFXOWXUDOZDWHU VXSSO\FDQRIWHQEHLPSDLUHGGXHWRH[FHVVLYHSROOXWDQWVIURP VWRUPZDWHUUXQRII7KHFDWDORJSURYLGHVJXLGDQFHIRUFRQWUROVWR UHGXFH³FRQYHQWLRQDO´SROOXWDQWVZLWKVSHFLDOFRQVLGHUDWLRQIRU SKRVSKRUXVDQGVHGLPHQWERWKFRPPRQSROOXWDQWVLQ,GDKR x )HGHUDO1DWLRQDO3ROOXWDQW'LVFKDUJH(OLPLQDWLRQ6\VWHP 13'(6 VWRUPZDWHUUHJXODWLRQVKDYHPDQGDWHGWKDWVRPH FRPPXQLWLHVGHYHORSDQGLPSOHPHQWVWRUPZDWHUPDQDJHPHQW SURJUDPVWRHQVXUHWKDWSROOXWDQWVLQVWRUPZDWHUUXQRIIDUH FRQWUROOHGWRWKHPD[LPXPH[WHQWSUDFWLFDEOH%HFDXVHSROOXWHG UXQRIIKDVWKHSRWHQWLDOWRFRQWULEXWHWRWKHGHJUDGDWLRQRI UHFHLYLQJZDWHUTXDOLW\LPSURYHGVWRUPZDWHUPDQDJHPHQW SURJUDPLPSOHPHQWDWLRQDWWKHORFDOOHYHOZLOOSOD\DQHYHU LQFUHDVLQJUROHLQDWWDLQLQJDQGPDLQWDLQLQJZDWHUTXDOLW\ VWDQGDUGV
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IDEQ Storm Water Best Management Practices Catalog September 2005 Fleet or Equipment Fueling Design Features BMP 3
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IDEQ Storm Water Best Management Practices Catalog September 2005 Access Roads and Rail Corridors BMP 4
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IDEQ Storm Water Best Management Practices Catalog September 2005 Non-Stormwater Discharges to Drains BMP 5
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IDEQ Storm Water Best Management Practices Catalog September 2005 Vehicle and Equipment Fueling BMP 6
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IDEQ Storm Water Best Management Practices Catalog September 2005 Vehicle and Equipment Cleaning BMP 7
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IDEQ Storm Water Best Management Practices Catalog September 2005 Vehicle and Equipment Maintenance & Repair BMP 8
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IDEQ Storm Water Best Management Practices Catalog September 2005 Outdoor Loading/Unloading of Materials BMP 9
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IDEQ Storm Water Best Management Practices Catalog September 2005 Outdoor Container Storage of Liquids BMP 10
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IDEQ Storm Water Best Management Practices Catalog September 2005 Outdoor Process Equipment BMP 11
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IDEQ Storm Water Best Management Practices Catalog September 2005 Outdoor Storage of Raw Materials BMP 12
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Cartons sized to ship by UPS. Inlet Filter Installation Instructions: Inlet Filter Maintenance Instructions: 1. Remove sediment, debris, Inlet Filter will collect a lot ice and snow from the inlet grate of sediment. Clean Inlet Filter surface and surrounding area. while mounted on the grate, even if ponded water surrounds the 2. Verify fit by placing filter over inlet. This unique feature en- inlet grate to ensure that Inlet sures all water entering the grate Filter extends at least one inch is filtered. Sweep sides and top beyond the front and both curb of Inlet Filter to remove sediment ends. The overlap slows water and debris after each rain event. flow and starts filtering sediment and debris before water drops into the inlet. 1. Remove sediment from the 3. Position the mat. Place Inlet sides of the filter by sweeping Filter on grate with the net side away from Inlet Filter. down, flush to the back edge and extending beyond the grate opening on the front and both sides. The zip ties attach Inlet Filter to the inlet grate cover WITHOUT LIFTING THE GRATE COVER. 4. Insert zip ties. Lift Inlet Filter slightly to enable you to see 2. Remove sediment from the the first grate bar from the edge of the grate cover. top of the filter by sweeping off of Inlet Filter. Push the zip tie down through the Inlet Filter and loop under the grate bar. Insert the pointed end of the zip tie about 2” away from the first zip tie penetration and push back up through the filter. Push the pointed end of the zip tie into the receiving end just enough to hold ends loosely. LEAVE ZIP TIES LOOSE UNTIL ALL TIES ARE LOOPED THROUGH THE MATS AROUND THE GRATES. Repeat Step 4 until all zip ties Inlet Filter is prepared for the are installed loosely. next rain event. 5. Tighten zip ties. After attaching all of the zip ties, re-position Inlet Filter to completely cover and overlap the grate. Pull free end of zip-ties hand tight to anchor Inlet Filter to the grate. Cut off free end of zip ties to leave a 1” tail. Blocksom & Co. P.O. Box 2007 Michigan City, IN 46361-8007 Toll free: (800) 745-1408 Fax: (219) 874-3752 Stormwater Pollution Prevent Plan INTERIM DRAFT Ada County Highway District Cloverdale Maintenance Facility 440 North Cloverdale Boise, Idaho 83713 October 2019 SWPPP Contact: Ada County Highway District 3775 Adams Street Garden City, Idaho 83714 (208) 373-6100 Monday-Friday 8AM to 5PM REV 01 Revisions Date Revision Description Number October 2015 Rev 0 See old SWPPP October 2019 Rev 1 Update for current site conditions This SWPPP is a living document that is intended to replace the 2015 SWPPP as the interim draft. As such, it can be modified as facility operations are altered. Alterations include but are not limited to new structures, construction, additional BMPs, or documented spills. Additionally, the SWPPP will be updated if new information regarding facility compliance or documentation is deemed necessary. CLOVERDALE SWPPP- INTERIM DRAFT 1| P a g e REV 01 Page intentionally left blank CLOVERDALE SWPPP- INTERIM DRAFT 2| P a g e REV 01 Table of Contents Section 1: Facilities Description and Contact Information ...... 5 1.1 Facility Background ...... 5 1.1.1 Facility Information ...... 5 1.2 Site Description ...... 5 1.3 Site Maps ...... 6 1.4 Contact Information and Responsible Parties ...... 6 1.5 Drainage Areas ...... 7 1.6 Discharge Locations ...... 8 1.6.1 Unauthorized Non-stormwater Discharges Documentation ...... 8 Section 2: Potential Pollutant Sources ...... 9 2.1 Potential Pollutants Associated with Industrial Activity ...... 9 2.2 Spills and Leaks ...... 9 2.3 Monitoring Requirements ...... 9 2.4 Facility Features and Structure Descriptions...... 10 2.4.1 C-1...... 10 2.4.2 C-2...... 10 2.4.3 C-3...... 11 2.4.4 C-4...... 11 2.4.5 C-5...... 11 2.4.6 C-6...... 12 2.4.7 C-7...... 12 2.4.8 C-8...... 12 2.4.9 C-9...... 12 2.4.10 Hose Sheds ...... 13 2.4.11 Magnesium Chloride Tanks ...... 14 2.4.12 Sanders Racks ...... 14 2.4.13 Material Storage Piles ...... 14 Section 3: Stormwater Control Measures ...... 15 3.1 Minimize Exposure ...... 15 3.1.1 Non-Stormwater Discharges to Drains ...... 15 3.1.2 Outdoor Storage of Raw Materials ...... 15 CLOVERDALE SWPPP- INTERIM DRAFT 3| P a g e REV 01 3.2 Good Housekeeping ...... 15 3.2.1 Vehicle and Equipment Fueling ...... 16 3.2.2 Vehicle and Equipment Cleaning...... 16 3.2.3 Outdoor Loading and Unloading of Materials ...... 16 3.2.4 Waste Handling and Disposal ...... 16 3.2.5 Contaminated or Erodible Surface Areas ...... 17 3.3 Maintenance ...... 17 3.3.1 Vehicle and Equipment Maintenance and Repair ...... 17 3.3.2 Building and Ground Maintenance ...... 17 3.3.3 Building Repair, Remodeling, & Construction ...... 18 3.4 Spill Prevention and Response ...... 18 3.5 Erosion and Sediment Controls ...... 18 3.6 Management of Runoff ...... 19 3.7 Salt Storage...... 19 3.8 Dust Generation and Vehicle Tracking ...... 19 3.9 Employee Training ...... 19 Section 4: Inspections and Records ...... 20 4.1 Inspections and Assessments ...... 20 4.2 Record Retention...... 20 Section 5: Documentation to Support Eligibility Considerations under Other Federal Laws ...... 21 5.1 Documentation Regarding Endangered Species ...... 21 5.2 Documentation Regarding Historic Properties ...... 21 Section 6: Corrective Actions ...... 21 Section 7: SWPPP Certifications ...... 21 Section 8: SWPPP Modifications ...... 21 Section 9: References ...... 22 Appendix A. Vicinity Map Appendix B. Drainage Areas and Outfall Map Appendix C. Site Map Appendix D. Stormwater Routine Facility Inspection Form Appendix E. IPAC Resource List Appendix G. Additional BMP References CLOVERDALE SWPPP- INTERIM DRAFT 4| P a g e REV 01 Section 1: Facilities Description and Contact Information 1.1 Facility Background Ada County Highway District (ACHD) is a permittee under the National Pollutant Discharge Elimination System (NPDES) Phase I and Phase II Municipal Storm Sewer System (MS4) Permits. The NPDES permits require that all permittees develop and implement Storm Water Pollution Prevention Plans (SWPPPs) for all Permittee-owned material storage facilities and maintenance yards located within the Permit area. Both the Adams and Cloverdale Maintenance Facilities are located within the Phase I permit area and are covered under Permit No: IDS-027561. This SWPPP is intended to meet permit requirement II.B.4.f of the Boise Area NPDES MS4 Permit and prevent the discharge of stormwater pollutants into receiving waters through the implementation of site specific BMPs. 1.1.1 Facility Information Facility Name: Ada County Highway District Cloverdale Maintenance Facility Facility Street Address: 440 North Cloverdale Rd Boise, Idaho 83713 Facility Mailing Address: 440 North Cloverdale Rd Boise, Idaho 83713 Facility Phone Number During Working Hours: [8am-5pm] (208) 387-6100 Owner Name: Ada County Highway District Owner Address: 3775 Adams Street Garden City, Idaho 83714 Operator Company Name: Ada County Highway District Operator Company Address: 3775 Adams Street Garden City, Idaho 83714 Latitude/Longitude: 43°36’33.27” N 116°20’02.70” W River Drainage Basin: Boise River Receiving Water Bodies: Fivemile Creek 1.2 Site Description The ACHD Cloverdale Maintenance Facility (facility) located in Boise, Idaho, is a construction, distribution and maintenance facility that serves the public roadways in Ada County, Idaho. The facility is located on 14.4 acres in western Boise. The land immediately surrounding the facility includes commercial warehouse properties on the east and west sides, Union Pacific Railroad (UPRR) track right- CLOVERDALE SWPPP- INTERIM DRAFT 5| P a g e REV 01 of-way to the south, and W. of W Executive Dr to the north. There are two entrances along N Cloverdale Rd and one along W Executive Dr. There are nine structures located within the facility used for general office, vehicle maintenance, and storage. Located centrally within the facility there are two underground storage tanks (USTs) located beside the fuel dispersing islands totaling 20,000-gallons. The Cloverdale facility meets the requirements of a Tier I self-regulating facility under the Spill Prevention Control and Counter measures (SPCC) Oil Pollution Prevention regulations. ACHD has opted to have a full SPCC plan prepared by a professional engineer that meets requirements for both a Tier I and Tier II facility. The Cloverdale facility retains an updated SPCC plan that outlines the procedures, methods and equipment used at the facility to prevent and respond to spills of liquid materials. A copy of the SPCC plan and corresponding documents is located in the main Cloverdale Superintendents office, the on-call go bag, and in the maintenance facilities office. 1.3 Site Maps Please see Appendix A for the vicinity map, Appendix B for site outfalls and drainage areas, and Appendix C for site specifics. 1.4 Contact Information and Responsible Parties The following people are involved in implementing and modifying the SWPPP. Responsible Officials: Deputy Director of Maintenance: Tim Nicholson 208-387-6322 Maintenance Manager: Lloyd Carnegie, 208-387-6319 208-919-4623 (c) Site Manager: Cloverdale Superintendent Scott Frisbie 208-387-6352 208-484-0416 (c) Responsibilities: Direct, coordinate and ensure that BMPs are implemented; budget for construction of new BMPs, modification of existing BMPs and maintenance of existing BMPs. Direct and educate employees working at the Adams facility of their roles and responsibilities in implementing this SWPPP. Participate in compliance evaluations and inspections of the facility. Compliance Support Environmental Programs Coordinator Caitlin Stevens 208-387-6279 Responsibilities: Initial development of the SWPPP and updates as needed. Participate in compliance evaluations and inspections of the facility as needed. CLOVERDALE SWPPP- INTERIM DRAFT 6| P a g e REV 01 1.5 Drainage Areas Stormwater at the Cloverdale facility consists of three drainage areas and correlated discharge locations. Two of the drainage areas, D1 and D2, include catch basins draining into multiple detention areas along the north and west side of the facility and the third area, drainage area 3, D3, discharges to the sanitary sewer or is reused onsite. A site map showing the drainage areas and site features are located in Appendix B and C (areas labeled as D1, D2, and D3). Each drainage area is described in detail in text following. • Drainage Area 1 – Drainage area 1 is approximately 7.9 acres. The area drains to the west through catch basins and sand/grease traps to the main retention and detention facility, Cloverdale outfall 1 (Cof1), on North Cloverdale Road. Materials and equipment stored in this drainage area consist of stockpiles of sand, aggregates, mixed materials, salt/sand mixture within the salt shed, sander racks, and magnesium chloride tanks. Water is conveyed on the surface by an asphalt channel leading to the catch basins which flow into a wet pond and seepage beds, all detention facilities have Biotitic Soil Media (BSM) for adsorption purposes. Potential pollutants in this area include: o Oil from vehicle/equipment leaks o Sediment from stockpiles and unpaved surfaces o Chlorides from salt/sand shed • Drainage Area 2 – Drainage area 2 is approximately 5 acres. The area drains through onsite the catch basins to retention and detention facilities in Cloverdale outfall 2 (Cof2). This outfall expands from the west along N Cloverdale Ave to the northeast along W Executive Dr. Specific industrial activities in the drainage area include stockpiling, employee parking, and traffic signage. Potential pollutants in this area include: o Oil from vehicle/equipment leaks o Sediment from stockpiles or unpaved areas • Drainage Area 3 – Drainage area 3 is approximately 1.5 acres. The area drains the east portion of the facility. This area contains the decant water treatment system, decant basins, sand filter and water storage tanks. Stormwater from this area will drain into the treatment system for reuse during cleaning of equipment onsite or discharged to the City of Boise Sanitary Sewer system. The outfall to the Evans drain has been plugged. However piping remains, with potential discharge to Cloverdale outfall 3 (Cof3), running along the east side of the property. Potential pollutants in this area include: o Sediments from vacuumed catch basin material o Bacteria from vacuumed catch basin material o Other pollutants from vacuumed catch basin material CLOVERDALE SWPPP- INTERIM DRAFT 7| P a g e REV 01 1.6 Discharge Locations As described previously, the facility has two primary stormwater retention/detention areas and one piped conveyance outfall that is currently plugged. Cof1 consists of retention and detention facilities that are located to the west of the facility which collects runoff from drainage area 1. This area has a deep bioswale and seepage beds that are designed to be low maintenance and drought tolerant (Photo 1). Primary outfall Cof2 is located along northwest portion of the facility along N. Cloverdale Rd expanding to the northeast along W Executive Dr. This outfall collects runoff from drainage area 2 and includes smaller bioswales designed for salt exposed plants (Photo 2). The decant water recycling facility was designed to overflow from the tanks into a 12 in. pipe on the east border of the property. The pipe flows south and discharging through a piped outfall into Evans Drain, Cof3, eventually draining into the Fivemile Creek (Photo 3). This line is currently plugged, and water is discharged to the City of Boise Sanitary Sewer. This system is monitored for fecal coliform and E.coli between the months of June and October. Sampling frequency was determined based on previous analytical data; sampling efforts coincide with historically the hottest months of the year when bacteria are most likely to grow. Photos 1-3. From left to right, deep bioswale and seepage beds looking north along N Cloverdale Rd, seepage beds looking west along W Executive Dr, and Evans Drain discharge location. 1.6.1 Unauthorized Non-stormwater Discharges Documentation ACHD commits the manpower, equipment, and materials required to expeditiously control and remove any quantity of spills that could potentially be harmful to health or the environment. If an unauthorized non-stormwater discharge is observed, the facility should follow the procedures identified in the Spill Prevent Control and Countermeasure (SPCC) plan to clean, document, and report the spill. Additionally, the event should be documented on the monthly inspection form. Documentation will include the source, amount discharged, cleanup activities, how to prevent future occurrences, and other pertinent information defined in the SPCC plan. CLOVERDALE SWPPP- INTERIM DRAFT 8| P a g e REV 01 Section 2: Potential Pollutant Sources 2.1 Potential Pollutants Associated with Industrial Activity Throughout the facility there are potential pollutants that could spill, leak, or drip. Below are industrial activities that occur at the facility and their potential pollutant. Table 1. Cloverdale Industrial Activities and Associated Pollutants Industrial Activity Associated Pollutants Fueling and Vehicle Maintenance Oil, gas, diesel, or hydraulic fluid Salt Stockpiling Chlorine Stockpiling of sand, dirt, riprap, or rubble Sediment Street Sweeper and Vehicle Washing Sediment or Bacteria Sweeper Decant Sediment or Bacteria 2.2 Spills and Leaks Throughout the facility there are areas that have the potential to have leaks or spills. Spills and leaks that are observed during the site walks are documented on the inspection reports. Minor drips occur from the removal of the sanders racks. Staff are trained to clean up any spills or leaks observed onsite. Table 2. Industrial Activity and Correlated Discharge Point Location Discharge Point Decant Water Treatment COF3 Fueling Station COF1 Sander Racks COF1 Vehicle Storage COF1 and COF2 2.3 Monitoring Requirements & Effluent Limits The Boise River is a 303(d) listed river. Due to its listing, the river has three Total Maximum Daily Loads (TMDLs) for sediment, total and dissolved phosphorus, and bacteria. Discharge limits are set forth by IDAPA 58.01.02 Surface Water Quality Criteria for Primary Contact Recreation. Table 3. Boise River Monitoring Requirements TMDL Pollutant of Concern Discharge Limit Sediment Total Suspended Solids 50 mg/L Total Phosphorus 0.07 mg/L Phosphorus Dissolved Phosphorus 0.07 mg/L Instantaneous- 406MPN/100 mL Bacteria E-Coli Chronic- 126 MPN/100mL Following the NPDES Phase 1 Permit, ACHD is required to conduct an outfall investigation on 20% of the ACHD outfall inventory, requiring one site visit for each outfall over the permit term. If flow is observed, sampling and chemical analysis is completed. Monitoring pollutants of concern includes turbidity, pH, CLOVERDALE SWPPP- INTERIM DRAFT 9| P a g e REV 01 chlorine, total copper, phenols, and detergents. All flow observations are monitored during three different irrigation time periods set by the Dry Weather Outfall Screening Plan. If a flow is above program benchmarks for one or more irrigation time periods, sampling will continue annually until the quality has improved or flow has been eliminated. Due to changes in facility design and plugging of the Evan Drains outfall, there is no stormwater effluent monitoring occurring onsite. 2.4 Facility Features and Structure Descriptions 2.4.1 C-1 The administrative office, C-1, is used for office purposes. The mechanics shop located adjacent to the administrative office building is used for general mechanical maintenance of vehicles and equipment. The structure is approximately 12,520 SF. This building also houses the oil storage room. The concrete floor of the mechanic shop drains into a trough that lies along the axis of the shop. The trough is connected to the storm drain system; however, the connection was plugged in 2015. This plug should remain in place until the connection can be removed during future renovations. Spills within the mechanic shop tend to be small and are cleaned up immediately by ACHD personnel. For detail on the oil handling, storage and spill response refer to the Cloverdale SPCC Plan. The roof drains on this building are connected to the storm drain system on the north and south which discharge into Drainage Area 1. Vehicles and machinery enter the yard portion of the facility via the gates to the north of the Administrative offices and mechanics shops. The entrances are paved and regularly swept if sediment accumulates. The covered portion of this area houses salt dye, old rags, degreaser, asphalt and other general supplies. Material needing secondary containment is kept under cover with appropriate containment. 2.4.2 C-2 Structure C-2 is mainly used for vacuum truck storage. The structure is approximately 3500 SF. There are six vacuum trucks and one sweeper stored inside. Photos 4-5. From left to right C-1 and C-2. CLOVERDALE SWPPP- INTERIM DRAFT 10| P a g e REV 01 2.4.3 C-3 Structure C-3 contains the weld shop and a secondary containment concrete storage area. The weld shop houses welding materials, oxygen and acetylene tanks, and is approximately 3300 SF. The secondary containment area has crackseal, asphalt machines, and additional spill kit supplies. The containment capacity for the area is approximately 950 gallons. 2.4.4 C-4 Structure C-4 is mainly used for crew storage, wood shop, and vehicle storage. The structure is approximately 13,354 SF. The crew sheds are self-contained with a concrete liner. Materials stored include vegetation crew supplies, crew supplies, and vehicle storage. Photos 6-7. From left to right, C-3 and C-4. 2.4.5 C-5 The water decant facility, C-5, is located at the eastside of the site. Material vacuumed from storm drainage structures or swept from roadways is first dumped onto a large pad that is designed to drain excess water away from the solids. The pad is designed to drain water to a 3,200 ft2 settling basin that is divided into four cells, slowly being routed through each of the cells to facilitate maximum settling of any solids. Settled water is then conveyed to a 2,800 ft2 sand filter designed to remove any additional pollutants in the water. The sand filter drains to a second sump which is conveyed to two aboveground 20,000-gallon storage tanks for reuse to clean vacuum and sweeper trucks. Stormwater runoff from this area is contained by berms on the decant pad and basins to be retained in the treatment system itself. Grades and berms are maintained to prevent stormwater runoff from this area from reaching other drainage areas in the facility. Dried waste materials from on the decant pad are disposed of appropriately and documented on the Waste Manifest Log with amount, date, and time. CLOVERDALE SWPPP- INTERIM DRAFT 11| P a g e REV 01 Photos 8-10. From left to right, structure C-5, settlement structure, and initial decant area. 2.4.6 C-6 The truck wash building, C-6, consists of two wash bays with one being for vehicles with oil, grease, and tar and the other for all other vehicles. The wash bays contain pressure washing equipment used to clean vehicles and equipment and drain to the sanitary sewer. Prior to discharge the water is filtered through an oil water separator. This is the only area pressure washing of vehicles and equipment is allowed. Any water from this area is discharged to the sanitary sewer system. 2.4.7 C-7 C-7 is used to store road crew traffic supplies. Supplies include traffic signs, cones, flagging materials, and construction information posters. Photos 11 and 12. From left to right C-6 and C-7. 2.4.8 C-8 Raw salt is stored in covered building, C-8, located on the southern border of the facility. The sand/salt mixture is located in an approximately 12,000 SF storage shed adjacent to the south entrance of the facility on N Cloverdale Rd. 2.4.9 C-9 Building shed C-9 is located by the magnesium chloride tanks in the southwest area of the facility. The shed contains a pump, miscellaneous electrical and spare parts, as well as an eyewash station. CLOVERDALE SWPPP- INTERIM DRAFT 12| P a g e REV 01 Photos 13 and 14. From left to right, C-8 and C-9. 2.4.10 Hose Sheds Hose Sheds 1, 2, & 3 are located adjacent to the water decant facility of the site. The hose sheds are used for sweepers, vacuum trucks, and other equipment to fill equipment either with recycled water from the decant system or fresh water from Suez. 2.4.11 Fueling Stations There are two fuel dispensing stations within the Cloverdale facility. A diesel pump with underground storage tank and gasoline pump with underground storage tank are both located between the mechanics shop and covered vehicle storage area. There are two USTs adjacent to the diesel and gasoline fueling structures containing either diesel or gasoline, total storage between the two structures is 20,000 gallons. Both fueling islands are equipped with spill kits and are controlled through a centrally located keypad. The fueling stations are not covered and the area is graded to prevent runoff. This area drains to the main storm drain system discharging through COF1 (Drainage Area 1). Photos 15 and 16. From left to right, hose shed and fueling stations CLOVERDALE SWPPP- INTERIM DRAFT 13| P a g e REV 01 2.4.12 Magnesium Chloride Tanks The Cloverdale facility houses eight 10,000-gallon magnesium chloride tanks. The tanks are stored in concrete secondary containment with drain valves remaining closed. Secondary containment for the tanks consists of concrete berm; the berm has storage for approximately 25,000 gallons. Drain valves are to only be opened after careful inspection to ensure there are no contaminants in the collected rainwater. Inflow and outflow of the tanks are metered, and volume can be monitored continuously. Inspections of the tanks occur at least once a month or daily, as needed, during winter operations. 2.4.13 Sanders Racks Sander racks house the sand and sand/salt dispersing equipment (spreaders) that can be attached to dump trucks. The spreaders are operated by hydraulics and occasionally residual hydraulic oil may seep out of the lines. It is the operator’s responsibility to ensure hydraulic lines on the spreaders are fully empty before storage. If any drips are encountered absorbent pads or floor dry will be used to clean up and disposed of properly. Photos 17 and 18. From left to right, fueling station, magnesium chloride tanks, and sanders racks. 2.4.13 Material Storage Piles There are two material storage pile areas. Area 1 is located at the southeast part of the facility and area 2 is located on the west part of the facility located between C-4 and employee parking. Examples of materials stored include sand, gravel chips, fill, rock, woody debris, excavated materials, sweeper and vacuum truck waste. Storage of erodible materials should be located away from storm drains and be kept in a neat organized fashion. Photos 19 and 20. Material Storage Pile Areas 1 and 2. CLOVERDALE SWPPP- INTERIM DRAFT 14| P a g e REV 01 Section 3: Stormwater Control Measures This section discusses the day-to-day operations, procedures, and Best Management Practices (BMPs) implemented at the facility for good housekeeping and pollution prevention. 3.1 Minimize Exposure The following structural controls and BMPs are used to minimize the exposure of industrial activities to rain, snow, snowmelt, and runoff. 3.1.1 Non-Stormwater Discharges to Drains The facility recently underwent remodeling, during this process the storm drain inlets within the facility were rerouted to retention and detention facilities along N Cloverdale Rd and W Executive Dr. See Appendix B for updated drainage specifics. Storm drains within the facility are regularly inspected and cleaned out to reduce potential sediment entering the area. Discharges to Waters of the State can occur via C-5, the water decant facility via a leaking plug, or if there is an overflow at the retention/detention areas. • Storm drains within the facility should have fabric catch basin inserts (witches’ hats) or above grate protection. • Above grate protection and catch basin inserts should be inspected monthly and replaced or cleaned if excess sediment has built up. • Sediment buildup around the catch basins should be regularly inspected and removed. If a non-stormwater discharge is observed, staff should reference the SPCC for appropriate procedures, documentation, and reporting requirements. 3.1.2 Outdoor Storage of Raw Materials Raw materials that are stored outside on the site include soil, chips, debris, spoils, and aggregate. To minimize exposure and protect materials during rain, snow, and wind the following are to be considered: • Sweep paved areas weekly with additional rounds as necessary to reduce sediment accumulation. • Stockpiles should not be placed adjacent to catch basins. • Spill kits within clean up materials are adjacent to outdoor storage areas. • Offsite run-on potential can be reduced by sloping the area and adding berms. • Prior to rain event, stockpiles may be covered to reduce run-off. • Salt shall always be stored within the salt storage shed, C-8. 3.2 Good Housekeeping The following BMPs are implemented onsite to reduce exposed areas and ensure the site maintains good housekeeping practices. CLOVERDALE SWPPP- INTERIM DRAFT 15| P a g e REV 01 3.2.1 Vehicle and Equipment Fueling Vehicle and equipment fueling are closely regulated to reduce the potential of gas or diesel from entering the system. A 1-inch deep, 3-inch wide channel has been cut into the asphalt in a 10-foot perimeter outside the fueling islands to catch small spills that may occur during the fueling of vehicles. • There are spill kits located at the fueling station to mitigate leaks or drips. • Spill kit contents includes absorbent pads, booms, pillows, quick-dry, goggles, gloves, and disposal bag. • Additional spill kit supplies are located in the mechanics shop. • Employees are instructed to stay with the vehicle while fueling and avoid topping off and are trained yearly in proper fueling and cleanup procedures. • Additional spill prevention and tanker delivery procedures are located in the Cloverdale SPCC plan. 3.2.2 Vehicle and Equipment Cleaning There is only one wash area at this facility where vehicles and equipment are cleaned at the C-6 structure. Water from this system is discharged to the sanitary sewer system. • The area is paved, regularly swept, and sloped for wash water collection. • There is an oil/water separator in the wash area to reduce potential contamination. 3.2.3 Outdoor Loading and Unloading of Materials Below are the minimum considerations for loading and unloading material. • Ensure forklifts operators are trained. • Maintain tidiness of disposal areas. • Limit delivery vehicle contents when storm drains are adjacent. • If leaks occur during transfer contain using appropriate spill cleanup materials with nearby spill kit and report as necessary according to the SPCC. • During dry weather, move stockpiles slowly to reduce generating dust. 3.2.4 Waste Handling and Disposal An important part of the facilities operations includes waste tracking including generation, storage, disposal, recycling, and reuse. Waste streams are characterized prior to disposal and tracking logs are located in the SWPPP binder onsite. • Chemicals, materials, quantities, and Safety Data Sheets (SDS) are stored onsite. • Storage containers are inspected regularly to determine container integrity, identify any leaks or spills, and ensure lids are secure. • If stored outside scrap metal and other waste should be covered. CLOVERDALE SWPPP- INTERIM DRAFT 16| P a g e REV 01 • Less toxic substitute materials may be used when deemed possible. 3.2.5 Contaminated or Erodible Surface Areas Sediment can be transported to receiving waters through erosion of unpaved areas of the facility, permanent sand and gravel storage and temporary soil piles. • Keep erodible material as far away as possible from catch basins. • Consider use of check dams to dissipate sediment in channelized areas. • Consider covering piles with plastic tarps or installing berms around the perimeter if sediment discharges continues to be observed. • Inspect and maintain catch basin inserts that are collecting sediment. • Maintain raised berms around the perimeter to keep stormwater onsite. • Maintain outfalls with rip rap as needed to reduce velocity and prevent erosion. 3.3 Maintenance The following procedures and BMPs are in place to maintain site equipment and reduce the potential of spills and leaks. 3.3.1 Vehicle and Equipment Maintenance and Repair Vehicles and equipment maintenance and repair is necessary for an organized facility. Vehicles and heavy machinery go through a rigorous maintenance screening prior to use to ensure the equipment is functioning as designed and there are no leaks. • Prior to use, vehicles and equipment are inspected for leaks and drips. • When vehicle maintenance is required, vehicles are stored inside the mechanics shop. • Drip pans may be placed under vehicles or equipment if leaks are a concern. • Drip pans associated with this activity are properly disposed of in a timely fashion. • Spill kit materials are located in the mechanics shops for use as needed. 3.3.2 Building and Ground Maintenance Building and ground maintenance practices are important to reduce potential stormwater runoff impacts. Keeping areas clean will prevent the spread of pollutant containing material. Extra attention to surfaces can significantly reduce pollutant wash-off. In addition, an orderly work environment will also reduce the chance for inadvertent spills. The following good housekeeping practices are employed onsite: • Keep outdoor work areas neat and organized. • Drums, containers, and chemicals will be stored with lids closed, labeled, and located in the secondary containment shed. • Sediment residue will be swept in a timely fashion to reduce potential contact with stormwater run-off and reduce vehicle tracking. If vehicle or machinery tracking becomes an issue, the Broom Crew team will be notified and a sweeper will clean the area. CLOVERDALE SWPPP- INTERIM DRAFT 17| P a g e REV 01 • Trash, floatables, and debris will be contained with lid shut and regularly disposed of. • Vehicles and equipment are regularly maintained to ensure no leaks or drips. • Absorbent material will be used on minor drips and leaks around the facility and disposed of properly. • During the summer if dust generation becomes an issue, vehicles and machinery will reduce speeds. If the problem continues, stockpiles may be sprayed down with clean water (not reuse water). • Paved areas around the facility are swept weekly to reduce vehicle tracking with additional rounds as needed throughout the week. 3.3.3 Building Repair, Remodeling, & Construction This BMP essential for reducing discharge of pollutants to stormwater related to repair, remodel, and construction. While the building is under construction it will be important to remember the following: • BMPs should be installed prior to construction and removed once the area has been re- stablized. • Cover stockpiles as necessary to reduce soil exposure footprint. • Place all liquid or hazardous materials in secondary containment adequate for material size. • Reduce runoff from area by implementing appropriate BMPs such as straw wattles, sandbags, silt fence, etc… • If track out is identified, manually sweep the area or request a street sweeper to clean the area. • Protect catch basins using inlet protection and avoiding hosing the area down. • Appropriately store and dispose of waste materials. • Do not pour paint down the storm drain. 3.4 Spill Prevention and Response ACHD commits the manpower, equipment, and materials required to expeditiously control and remove any quantity of spills that could potentially be harmful to health or the environment. If an unauthorized non-stormwater discharge is observed, the responsible person will document said event on the monthly inspection. Documentation will include the source, amount discharged, cleanup activities, how to prevent future occurrences, and other pertinent information defined in the Spill Prevent Control and Countermeasure (SPCC) plan. 3.5 Erosion and Sediment Controls Erosion and Sediment Control BMPs are implemented around the site as deemed necessary. BMPs implemented onsite include but are not limited to: • Non-stormwater Discharges to Drain, see section 3.1.1. • Outdoor Storage of Raw Materials, see section 3.1.2. • Contaminated or Erodible Surfaces, see section 3.2.5. CLOVERDALE SWPPP- INTERIM DRAFT 18| P a g e REV 01 If channelized flows are observed, check dams may be installed to dissipate sediment and reduce flow velocity. If at any point operations at the facility are modified, additional BMPs may be installed as necessary and the SWPPP will be modified to include the changes. 3.6 Management of Runoff Stormwater from around the site has been designed to infiltrate in drainage areas 1 and 2. See sections 1.5. Drainage Areas and 1.6. Discharge Locations for site specifics. 3.7 Salt Storage Salt and salt with sand mixture is used on roadways as deicer. When this material is exposed to stormwater it can transport chloride pollution to waterways and into groundwater. The following practices can help keep salt and sand/salt piles from being transported by stormwater: • Keep raw salt in covered salt shed. • Sweep any salt seen migrating outside of the covered shed back into a covered area. • Consider a door or a berm on the salt shed to keep materials inside. • Keep sand/salt piles as far away as possible from catch basins. All salt and salt with sand mixture is stored in structure C-8, see section 2.4.8 for structure specifics. 3.8 Dust Generation and Vehicle Tracking During summer months moving stockpiles may generate dust and become an air quality issue. Additionally after rain events, vehicle tracking may be noticeable. See section 3.3.2. Building and Ground Maintenance for specific procedures in place at the facility to reduce the possibility of dust generation and vehicle tracking. 3.9 Employee Training Training consists of Pollution Prevention and Good Housekeeping for Municipal Operations training for new employees within 30 days of hiring and refresher training for Adams employees is held annually addressing: • Cloverdale SWPPP requirements and critical BMPs • Good Housekeeping • Spill Prevention and Response • Vehicle Fueling • Vehicle and Equipment Maintenance • Vehicle and Equipment Washing • Vehicle Tracking • Materials Management • Waste Management • Municipal Facility Maintenance • Parking Lots and Streets • Storm Drain System Cleaning • Landscaping and Grounds Maintenance • Working over or Near Waters CLOVERDALE SWPPP- INTERIM DRAFT 19| P a g e REV 01 • Air quality conditions for the day Training will be coordinated with the Safety and Training Coordinator or Environmental Programs Coordinator and must be documented and recorded in the ACHD training compliance database. Section 4: Inspections and Records 4.1 Inspections and Assessments Monthly inspections are conducted to ensure BMPs are being implemented and are adequate for preventing stormwater pollutants discharging offsite. The Maintenance Superintendent, Crew Chief, or Lead worker are responsible for conducting the inspections or delegating inspection responsibilities to qualified staff members. Inspections are conducted to: • Verify that the description of the storm drain system in section 1.5 Drainage Areas and Appendix B and C are accurate. If additional BMPs are installed, modify figures as necessary for accuracy. • Verify that BMPs are being implemented, maintained, and are functioning adequately. • Inspect all drainage structures including outfalls for defects and maintenance needs. • List observations of floating materials, oil and grease, turbidity, odor, etc. in drainage structures. Inspections must be documented and recorded on Stormwater Routine Facility Inspection Report in Appendix D. If at any time a BMP is not effective, it must be repaired or maintained before the next anticipated storm event. If maintenance prior to the next storm event is not possible, maintenance must be completed as soon as possible and documented on the inspection form for the extended repair schedule. In the interim, alternative measures must be implemented to ensure that water quality is not degraded by stormwater discharges from the facility. 4.2 Record Retention Records must be retained for a minimum of five (5) years. Cloverdale facility records will be retained by the Cloverdale Maintenance Superintendent or Training. Records include but are not limited to: • Inspection Forms • Training Records • Maintenance Records • Waste Disposal Records • Analytical Reports for Lab Analysis of Water or Waste Characterization • Waste Manifest Logs CLOVERDALE SWPPP- INTERIM DRAFT 20| P a g e REV 01 Section 5: Documentation to Support Eligibility Considerations under Other Federal Laws 5.1 Documentation Regarding Endangered Species According to U.S. Fish and Wildlife Service, there are no endangered species or critical habitats adjacent to the facility, see Appendix E Draft IPAC Resource List. However the flowering plant Slickspot Peppergass is threatened. If additional information becomes available contradicting the above statement, the SWPPP will be modified to include any pertinent information. 5.2 Documentation Regarding Historic Properties To the best of the writers’ knowledge there are no historical properties within the facility. If additional information becomes available contradicting the above statement, the SWPPP will be modified to include any pertinent information. Section 6: Corrective Actions To the best of the writers’ knowledge there are no documented corrective actions associated with this facility. If additional information becomes available contradicting the above statement, the SWPPP will be modified to include any pertinent information. Section 7: SWPPP Certifications The Environmental Programs Coordinator certifies this SWPPP includes all currently available information related to environmental compliance of the facility. If additional information becomes available contradicting the above statement, the SWPPP will be modified to include any pertinent information. Section 8: SWPPP Modifications This SWPPP is a living document and can be modified as facility operations are altered. Alterations include but are not limited to new structures, construction, additional BMPs, or documented spills. Additionally, the SWPPP will be updated if new information regarding facility compliance or documentation is deemed necessary. CLOVERDALE SWPPP- INTERIM DRAFT 21| P a g e REV 01 Section 9: References Environmental Protection Agency. EPA Industrial SWPPP Template. 2015. https://www.epa.gov/sites/production/files/2015-11/msgp2015_swppptemplate.docx. Environmental Protection Agency. When are You Required to Report an Oil Spill and Hazardous Substance Release. 14 March, 2017. www.epa.gov/emergency-response/when-are-you-required-report-oil-spill-and-hazardous- substance-release. Idaho Department of Environmental Quality. Catalog of Stormwater Best Management Practices for Idaho Cities and Counties. 2005. http://www.deq.idaho.gov/media/622263-Stormwater.pdf. State of Idaho, Department of Environmental Quality. Idaho Catalog of Storm Water Best Management Practices, draft. 2019. https://www.deq.idaho.gov/media/60183104/idaho-catalog-storm-water-bmps-draft-0719.pdf CLOVERDALE SWPPP- INTERIM DRAFT 22| P a g e Appendix A. Vicinity Map ADA COUNTY, IDAHO STAR μ EAGLE GARDEN CITY MERIDIAN BOISE KUNA Project Location 1 in = 12 miles Fairview Ave. Meridian BOISE Cloverdale Rd. Franklin Rd. Project Location ¤£184 Cloverdale Maintenance Facility Vicinity Map Cloverdale Maintenance Site Unincorporated 2016 Aerial • 2019 Yard Overlay March 21, 2019 Ada County Map is intended as 1 in = 1 miles ± visual reference only Appendix B. Drainage Areas and Outfall Map 5 ACHD 1 inch = 100 feet inch = 1 Cloverdale and Outfall and Boise, ID 83713 Boise, EVANS DRAIN OUTFALL (Cof3) OUTFALL DRAIN EVANS MANHOLE INLET PRETREATMENT PIPE DRAIN STORM SWALE SEWER OVERFLOW TANK BOUNDARY CLOVERDALE FLOW LINES RAILROAD PACIFIC UNION (Cof1) DETENTION / RETENTION (Cof2) DETENTION / RETENTION HS-3 C-9; BUILDING; RADIO TOWER DRAINAGE AREA D-1 D-2 D-3 2017 Cloverdale Site Imagery 2017 Cloverdale X Y 440 Cloverdale Rd440 Cloverdale X Y Drainage Areas Drainage X Y ) ! X Y ) ! Maintenance Site Y n X 6 ! ! 2 r × " ) X Y AreaName rn) ) 6 rn) ) rn) ) W Executive Dr rn) ) rn) ) r n ) ) r n ) ) r n ) ) D-2 N Cloverdale Rd N Cloverdale XY XY XY C-5 XY C-4 XY !!XY 2XY XY XY XY XY XY XY 6 HS-3 XY XY XY 6 XY C-3 XY XY XY XY XY 6 XY 6 XY 6 6 HS-2 XY 6 XY ! ! XY 6 × n n n r) ) r) ) r) ) XY XY 6 XY XY XY rn) ) HS-1 XY XY XY XY XY XY XY C-2 2!!XY C-1 XY XY XY XY XY XY XY D-3 XY XY XY XY XY XY 6 XY 6 6 XY n) ) 6 ! ! XY 6 r × n) ) ×! ! XY r rn) ) XY XY ! ! XY × XY n) ) C-6 XY r XY XY XY XY XY XY XY XY XY XY XY XY D-1 XY !XY 2!XY XY XY XY XY XY XY 6 XY XY C-9 XY ×! ! 6 XY XY XY XY XY rn) ) XY XY 6 XY XY XY ! XY 2! XY XY XY XY C-8 XY XY XY XY C-7 XY XY XY XY XY !XY 2!XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY Union Pacific Railroad XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY EVANS DRAIN XY XY )"XY Document Path: H:\Gail\HelpDesk\Cloverdale Maintenance\CloverdaleSite_StormDrain.mxd H:\Gail\HelpDesk\Cloverdale Path: Document Appendix C. Site Map 5 ACHD 1 inch = 100 feet inch = 1 SITE MAP Cloverdale Boise, ID 83713 Boise, 2017 Cloverdale Site Imagery 2017 Cloverdale SPILL KIT SPILL (Cof3) DRAIN OUTFALL EVANS / GAS PUMPDIESEL RECEPTOR RECYCLING MAGNESIUMAREA CHLORIDE RACK SANDERS AREA STOCK PILE AREA DECANT WATER AREA TANK WATER WATTLE STRAW RETENTION/DETENTION (Cof1) RETENTION/DETENTION (Cof2) IMPERVIOUS AREA RADIO TOWER BUILDING ACCESS TANK OVERFLOW CLOVERDALE BOUNDARY RAILROADUNION PACIFIC 440 Cloverdale Rd440 Cloverdale X Y X Y Y Maintenance Site X X Y X Y " ) X Y AreaName W Executive Dr N Cloverdale Rd N Cloverdale C-5 XY XY XY XY C-4 XY XY XY XY XY XY XY XY XY HS-3 XY XY XY XY C-3 XY XY XY XY XY XY HS-2 XY XY XY XY XY XY XY XY XY HS-1 XY XY XY XY XY XY XY C-2 XY C-1 XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY C-6 XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY C-9 XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY C-8 XY XY XY XY C-7 XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY Union Pacific Railroad XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY XY EVANS DRAIN )"XY Document Path: H:\Gail\HelpDesk\Cloverdale Maintenance\CloverdaleBoundary_SWPPP.mxd H:\Gail\HelpDesk\Cloverdale Path: Document Appendix D. Stormwater Routine Facility Inspection Form Stormwater Routine Facility Inspection Report General Information Facility Name Cloverdale Rd Maintenance Facility Date of Inspection Start/End Time Inspector’s Name(s) Inspector’s Title(s) Weather Information Weather at time of this inspection? Clear Cloudy Rain Sleet Fog Snow High Winds Other: Temperature: Have any previously unidentified discharges of pollutants occurred since the last inspection? Yes No If yes, describe: Are there any discharges occurring at the time of inspection? Yes No If yes, describe: Control Measures x Describe corrective actions initiated, date completed, and note the person that completed the work in the Corrective Action Log. Structural Control Control If No, In Need of Corrective Action Needed and Notes Measure Measure is Maintenance, (identify needed maintenance and repairs, or any Operating Repair, or failed control measures that need replacement) Effectively? Replacement? 1 Drop Inlet Protection Yes No Maintenance Repair Replacement 2 Bioswales along facility Yes No Maintenance perimeter Repair Replacement 3 Gasoline Spill Kit Yes No Maintenance Repair Replacement 4 Diesel Spill Kit Yes No Maintenance Repair Replacement 5 Secondary Yes No Maintenance Containment Repair Replacement 6 Site Perimeter Yes No Maintenance Repair Replacement 7 Evans Drain Outfall Yes No Maintenance Repair Replacement 8 Yes No Maintenance Repair Replacement 9 Yes No Maintenance Repair Replacement 10 Yes No Maintenance Repair Replacement Areas of Industrial Materials or Activities exposed to stormwater Below are some general areas that should be assessed during routine inspections. Customize this list as needed for the specific types of industrial materials or activities at your facility. Area/Activity Inspected? Controls Adequate Corrective Action Needed and Notes (appropriate, effective, and operating)? 1 Sander Racks Yes No N/A Yes No 2 Dewatering Pad / Decant Yes No N/A Yes No Basins 3 Fueling Areas Yes No N/A Yes No 4 Vehicle and Equipment Yes No N/A Yes No Washing Areas 5 Waste Handling and Yes No N/A Yes No Disposal Areas 6 Erodible Yes No N/A Yes No Areas/Construction 7 Sand & Salt Shed Yes No N/A Yes No 8 Material Storage Piles Yes No N/A Yes No 9 Magnesium Chloride Yes No N/A Yes No Tanks and Secondary Containment 10 Secondary Containment Yes No N/A Yes No Breezeway 11 Dust Generating & Yes No N/A Yes No Vehicle Tracking 12 Yes No N/A Yes No Describe any incidents of non-compliance observed and not described above: Additional Control Measures (Describe any additional control measures needed to comply with the permit requirements): Notes (Use this space for additional notes or observations from the inspection): 2 Appendix E. IPAC Resource List United States Department of the Interior FISH AND WILDLIFE SERVICE Idaho Fish And Wildlife Office 1387 South Vinnell Way, Suite 368 Boise, ID 83709-1657 Phone: (208) 378-5243 Fax: (208) 378-5262 In Reply Refer To: March 21, 2019 Consultation Code: 01EIFW00-2019-SLI-0853 Event Code: 01EIFW00-2019-E-01849 Project Name: Cloverdale Maintenance Facility Subject: List of threatened and endangered species that may occur in your proposed project location, and/or may be affected by your proposed project To Whom It May Concern: The enclosed species list identifies threatened, endangered, proposed and candidate species, as well as proposed and final designated critical habitat, that may occur within the boundary of your proposed project and/or may be affected by your proposed project. The species list fulfills the requirements of the U.S. Fish and Wildlife Service (Service) under section 7(c) of the Endangered Species Act (Act) of 1973, as amended (16 U.S.C. 1531 et seq.). New information based on updated surveys, changes in the abundance and distribution of species, changed habitat conditions, or other factors could change this list. Please feel free to contact us if you need more current information or assistance regarding the potential impacts to federally proposed, listed, and candidate species and federally designated and proposed critical habitat. Please note that under 50 CFR 402.12(e) of the regulations implementing section 7 of the Act, the accuracy of this species list should be verified after 90 days. This verification can be completed formally or informally as desired. The Service recommends that verification be completed by visiting the ECOS-IPaC website at regular intervals during project planning and implementation for updates to species lists and information. An updated list may be requested through the ECOS-IPaC system by completing the same process used to receive the enclosed list. The purpose of the Act is to provide a means whereby threatened and endangered species and the ecosystems upon which they depend may be conserved. Under sections 7(a)(1) and 7(a)(2) of the Act and its implementing regulations (50 CFR 402 et seq.), Federal agencies are required to utilize their authorities to carry out programs for the conservation of threatened and endangered species and to determine whether projects may affect threatened and endangered species and/or designated critical habitat. 03/21/2019 Event Code: 01EIFW00-2019-E-01849 2 A Biological Assessment is required for construction projects (or other undertakings having similar physical impacts) that are major Federal actions significantly affecting the quality of the human environment as defined in the National Environmental Policy Act (42 U.S.C. 4332(2) (c)). For projects other than major construction activities, the Service suggests that a biological evaluation similar to a Biological Assessment be prepared to determine whether the project may affect listed or proposed species and/or designated or proposed critical habitat. Recommended contents of a Biological Assessment are described at 50 CFR 402.12. If a Federal agency determines, based on the Biological Assessment or biological evaluation, that listed species and/or designated critical habitat may be affected by the proposed project, the agency is required to consult with the Service pursuant to 50 CFR 402. In addition, the Service recommends that candidate species, proposed species and proposed critical habitat be addressed within the consultation. More information on the regulations and procedures for section 7 consultation, including the role of permit or license applicants, can be found in the "Endangered Species Consultation Handbook" at: http://www.fws.gov/endangered/esa-library/pdf/TOC-GLOS.PDF Please be aware that bald and golden eagles are protected under the Bald and Golden Eagle Protection Act (16 U.S.C. 668 et seq.), and projects affecting these species may require development of an eagle conservation plan (https://ww.fws.gov/migratorybirds/pdf/management/ eagleconservtionplanguidance.pdf). Additionally, wind energy projects should follow the wind energy guidelines (https://www.fws.gov/ecologica-servces/energy-develpment/wind/html) for minimizing impacts to migratory birds and bats. Guidance for minimizing impacts to migratory birds for projects including communications towers (e.g., cellular, digital television, radio, and emergency broadcast) can be found at: https:// www.fws.ov/bidsbird-enthusiasts/threats-to-birds/collisions/communication-towers.php. We appreciate your concern for threatened and endangered species. The Service encourages Federal agencies to include conservation of threatened and endangered species into their project planning to further the purposes of the Act. Please include the Consultation Tracking Number in the header of this letter with any request for consultation or correspondence about your project that you submit to our office. Attachment(s): ƒ Official Species List ƒ USFWS National Wildlife Refuges and Fish Hatcheries ƒ Migratory Birds ƒ Wetlands 03/21/2019 Event Code: 01EIFW00-2019-E-01849 1 Official Species List This list is provided pursuant to Section 7 of the Endangered Species Act, and fulfills the requirement for Federal agencies to "request of the Secretary of the Interior information whether any species which is listed or proposed to be listed may be present in the area of a proposed action". This species list is provided by: Idaho Fish And Wildlife Office 1387 South Vinnell Way, Suite 368 Boise, ID 83709-1657 (208) 378-5243 03/21/2019 Event Code: 01EIFW00-2019-E-01849 2 Project Summary Consultation Code: 01EIFW00-2019-SLI-0853 Event Code: 01EIFW00-2019-E-01849 Project Name: Cloverdale Maintenance Facility Project Type: TRANSPORTATION Project Description: Cloverdale Maintenance Facility Project Location: Approximate location of the project can be viewed in Google Maps: https:// www.google.com/maps/place/43.60954840221749N116.33299624421937W Counties: Ada, ID 03/21/2019 Event Code: 01EIFW00-2019-E-01849 3 Endangered Species Act Species There is a total of 1 threatened, endangered, or candidate species on this species list. Species on this list should be considered in an effects analysis for your project and could include species that exist in another geographic area. For example, certain fish may appear on the species list because a project could affect downstream species. IPaC does not display listed species or critical habitats under the sole jurisdiction of NOAA Fisheries1 , as USFWS does not have the authority to speak on behalf of NOAA and the Department of Commerce. See the "Critical habitats" section below for those critical habitats that lie wholly or partially within your project area under this office's jurisdiction. Please contact the designated FWS office if you have questions. 1. NOAA Fisheries, also known as the National Marine Fisheries Service (NMFS), is an office of the National Oceanic and Atmospheric Administration within the Department of Commerce. Flowering Plants NAME STATUS Slickspot Peppergrass Lepidium papilliferum Threatened There is proposed critical habitat for this species. Your location is outside the critical habitat. Species profile: https://ecos.fws.gov/ecp/species/4027 Critical habitats THERE ARE NO CRITICAL HABITATS WITHIN YOUR PROJECT AREA UNDER THIS OFFICE'S JURISDICTION. 03/21/2019 Event Code: 01EIFW00-2019-E-01849 1 USFWS National Wildlife Refuge Lands And Fish Hatcheries Any activity proposed on lands managed by the National Wildlife Refuge system must undergo a 'Compatibility Determination' conducted by the Refuge. Please contact the individual Refuges to discuss any questions or concerns. THERE ARE NO REFUGE LANDS OR FISH HATCHERIES WITHIN YOUR PROJECT AREA. 03/21/2019 Event Code: 01EIFW00-2019-E-01849 1 Migratory Birds Certain birds are protected under the Migratory Bird Treaty Act1 and the Bald and Golden Eagle Protection Act2 . Any person or organization who plans or conducts activities that may result in impacts to migratory birds, eagles, and their habitats should follow appropriate regulations and consider implementing appropriate conservation measures, as described below. 1. The Migratory Birds Treaty Act of 1918. 2. The Bald and Golden Eagle Protection Act of 1940. 3. 50 C.F.R. Sec. 10.12 and 16 U.S.C. Sec. 668(a) The birds listed below are birds of particular concern either because they occur on the USFWS Birds of Conservation Concern (BCC) list or warrant special attention in your project location. To learn more about the levels of concern for birds on your list and how this list is generated, see the FAQ below. This is not a list of every bird you may find in this location, nor a guarantee that every bird on this list will be found in your project area. To see exact locations of where birders and the general public have sighted birds in and around your project area, visit the E-bird data mapping tool (Tip: enter your location, desired date range and a species on your list). For projects that occur off the Atlantic Coast, additional maps and models detailing the relative occurrence and abundance of bird species on your list are available. Links to additional information about Atlantic Coast birds, and other important information about your migratory bird list, including how to properly interpret and use your migratory bird report, can be found below. For guidance on when to schedule activities or implement avoidance and minimization measures to reduce impacts to migratory birds on your list, click on the PROBABILITY OF PRESENCE SUMMARY at the top of your list to see when these birds are most likely to be present and breeding in your project area. NAME BREEDING SEASON Lewis's Woodpecker Melanerpes lewis Breeds Apr 20 to Sep 30 This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA and Alaska. https://ecos.fws.gov/ecp/species/9408 Long-billed Curlew Numenius americanus Breeds Apr 1 to Jul 31 This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA and Alaska. https://ecos.fws.gov/ecp/species/5511 03/21/2019 Event Code: 01EIFW00-2019-E-01849 2 Probability Of Presence Summary The graphs below provide our best understanding of when birds of concern are most likely to be present in your project area. This information can be used to tailor and schedule your project activities to avoid or minimize impacts to birds. Please make sure you read and understand the FAQ ³Proper Interpretation and Use of Your Migratory Bird Report´ before using or attempting to interpret this report. Probability of Presence ( ) Each green bar represents the bird's relative probability of presence in the 10km grid cell(s) your project overlaps during a particular week of the year. (A year is represented as 12 4-week months.) A taller bar indicates a higher probability of species presence. The survey effort (see below) can be used to establish a level of confidence in the presence score. One can have higher confidence in the presence score if the corresponding survey effort is also high. How is the probability of presence score calculated? The calculation is done in three steps: 1. The probability of presence for each week is calculated as the number of survey events in the week where the species was detected divided by the total number of survey events for that week. For example, if in week 12 there were 20 survey events and the Spotted Towhee was found in 5 of them, the probability of presence of the Spotted Towhee in week 12 is 0.25. 2. To properly present the pattern of presence across the year, the relative probability of presence is calculated. This is the probability of presence divided by the maximum probability of presence across all weeks. For example, imagine the probability of presence in week 20 for the Spotted Towhee is 0.05, and that the probability of presence at week 12 (0.25) is the maximum of any week of the year. The relative probability of presence on week 12 is 0.25/0.25 = 1; at week 20 it is 0.05/0.25 = 0.2. 3. The relative probability of presence calculated in the previous step undergoes a statistical conversion so that all possible values fall between 0 and 10, inclusive. This is the probability of presence score. Breeding Season ( ) Yellow bars denote a very liberal estimate of the time-frame inside which the bird breeds across its entire range. If there are no yellow bars shown for a bird, it does not breed in your project area. Survey Effort ( ) Vertical black lines superimposed on probability of presence bars indicate the number of surveys performed for that species in the 10km grid cell(s) your project area overlaps. The number of surveys is expressed as a range, for example, 33 to 64 surveys. No Data ( ) A week is marked as having no data if there were no survey events for that week. Survey Timeframe 03/21/2019 Event Code: 01EIFW00-2019-E-01849 3 Surveys from only the last 10 years are used in order to ensure delivery of currently relevant information. The exception to this is areas off the Atlantic coast, where bird returns are based on all years of available data, since data in these areas is currently much more sparse. probability of presence breeding season survey effort no data SPECIES JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC Lewis's Woodpecker BCC Rangewide (CON) Long-billed Curlew BCC Rangewide (CON) Additional information can be found using the following links: ƒ Birds of Conservation Concern http://www.fws.gov/birds/management/managed-species/ birds-of-conservation-concern.php ƒ Measures for avoiding and minimizing impacts to birds http://www.fws.gov/birds/ management/project-assessment-tools-and-guidance/ conservation-measures.php ƒ Nationwide conservation measures for birds http://www.fws.gov/migratorybirds/pdf/ management/nationwidestandardconservationmeasures.pdf Migratory Birds FAQ Tell me more about conservation measures I can implement to avoid or minimize impacts to migratory birds. Nationwide Conservation Measures describes measures that can help avoid and minimize impacts to all birds at any location year round. Implementation of these measures is particularly important when birds are most likely to occur in the project area. When birds may be breeding in the area, identifying the locations of any active nests and avoiding their destruction is a very helpful impact minimization measure. To see when birds are most likely to occur and be breeding in your project area, view the Probability of Presence Summary. Additional measures and/or permits may be advisable depending on the type of activity you are conducting and the type of infrastructure or bird species present on your project site. What does IPaC use to generate the migratory birds potentially occurring in my specified location? The Migratory Bird Resource List is comprised of USFWS Birds of Conservation Concern (BCC) and other species that may warrant special attention in your project location. The migratory bird list generated for your project is derived from data provided by the Avian Knowledge Network (AKN). The AKN data is based on a growing collection of survey, banding, and citizen science datasets and is queried and filtered to return a list of those birds reported as 03/21/2019 Event Code: 01EIFW00-2019-E-01849 4 occurring in the 10km grid cell(s) which your project intersects, and that have been identified as warranting special attention because they are a BCC species in that area, an eagle (Eagle Act requirements may apply), or a species that has a particular vulnerability to offshore activities or development. Again, the Migratory Bird Resource list includes only a subset of birds that may occur in your project area. It is not representative of all birds that may occur in your project area. To get a list of all birds potentially present in your project area, please visit the E-bird Explore Data Tool. What does IPaC use to generate the probability of presence graphs for the migratory birds potentially occurring in my specified location? The probability of presence graphs associated with your migratory bird list are based on data provided by the Avian Knowledge Network (AKN). This data is derived from a growing collection of survey, banding, and citizen science datasets . Probability of presence data is continuously being updated as new and better information becomes available. To learn more about how the probability of presence graphs are produced and how to interpret them, go the Probability of Presence Summary and then click on the "Tell me about these graphs" link. How do I know if a bird is breeding, wintering, migrating or present year-round in my project area? To see what part of a particular bird's range your project area falls within (i.e. breeding, wintering, migrating or year-round), you may refer to the following resources: The Cornell Lab of Ornithology All About Birds Bird Guide, or (if you are unsuccessful in locating the bird of interest there), the Cornell Lab of Ornithology Neotropical Birds guide. If a bird on your migratory bird species list has a breeding season associated with it, if that bird does occur in your project area, there may be nests present at some point within the timeframe specified. If "Breeds elsewhere" is indicated, then the bird likely does not breed in your project area. What are the levels of concern for migratory birds? Migratory birds delivered through IPaC fall into the following distinct categories of concern: 1. "BCC Rangewide" birds are Birds of Conservation Concern (BCC) that are of concern throughout their range anywhere within the USA (including Hawaii, the Pacific Islands, Puerto Rico, and the Virgin Islands); 2. "BCC - BCR" birds are BCCs that are of concern only in particular Bird Conservation Regions (BCRs) in the continental USA; and 3. "Non-BCC - Vulnerable" birds are not BCC species in your project area, but appear on your list either because of the Eagle Act requirements (for eagles) or (for non-eagles) potential susceptibilities in offshore areas from certain types of development or activities (e.g. offshore energy development or longline fishing). Although it is important to try to avoid and minimize impacts to all birds, efforts should be made, in particular, to avoid and minimize impacts to the birds on this list, especially eagles and BCC 03/21/2019 Event Code: 01EIFW00-2019-E-01849 5 species of rangewide concern. For more information on conservation measures you can implement to help avoid and minimize migratory bird impacts and requirements for eagles, please see the FAQs for these topics. Details about birds that are potentially affected by offshore projects For additional details about the relative occurrence and abundance of both individual bird species and groups of bird species within your project area off the Atlantic Coast, please visit the Northeast Ocean Data Portal. The Portal also offers data and information about other taxa besides birds that may be helpful to you in your project review. Alternately, you may download the bird model results files underlying the portal maps through the NOAA NCCOS Integrative Statistical Modeling and Predictive Mapping of Marine Bird Distributions and Abundance on the Atlantic Outer Continental Shelf project webpage. Bird tracking data can also provide additional details about occurrence and habitat use throughout the year, including migration. Models relying on survey data may not include this information. For additional information on marine bird tracking data, see the Diving Bird Study and the nanotag studies or contact Caleb Spiegel or Pam Loring. What if I have eagles on my list? If your project has the potential to disturb or kill eagles, you may need to obtain a permit to avoid violating the Eagle Act should such impacts occur. Proper Interpretation and Use of Your Migratory Bird Report The migratory bird list generated is not a list of all birds in your project area, only a subset of birds of priority concern. To learn more about how your list is generated, and see options for identifying what other birds may be in your project area, please see the FAQ ³What does IPaC use to generate the migratory birds potentially occurring in my specified location´. Please be aware this report provides the ³probability of presence´ of birds within the 10 km grid cell(s) that overlap your project; not your exact project footprint. On the graphs provided, please also look carefully at the survey effort (indicated by the black vertical bar) and for the existence of the ³no data´ indicator (a red horizontal bar). A high survey effort is the key component. If the survey effort is high, then the probability of presence score can be viewed as more dependable. In contrast, a low survey effort bar or no data bar means a lack of data and, therefore, a lack of certainty about presence of the species. This list is not perfect; it is simply a starting point for identifying what birds of concern have the potential to be in your project area, when they might be there, and if they might be breeding (which means nests might be present). The list helps you know what to look for to confirm presence, and helps guide you in knowing when to implement conservation measures to avoid or minimize potential impacts from your project activities, should presence be confirmed. To learn more about conservation measures, visit the FAQ ³Tell me about conservation measures I can implement to avoid or minimize impacts to migratory birds´ at the bottom of your migratory bird trust resources page. 03/21/2019 Event Code: 01EIFW00-2019-E-01849 1 Wetlands Impacts to NWI wetlands and other aquatic habitats may be subject to regulation under Section 404 of the Clean Water Act, or other State/Federal statutes. For more information please contact the Regulatory Program of the local U.S. Army Corps of Engineers District. Please note that the NWI data being shown may be out of date. We are currently working to update our NWI data set. We recommend you verify these results with a site visit to determine the actual extent of wetlands on site. THERE ARE NO WETLANDS WITHIN YOUR PROJECT AREA. Appendix G. Additional BMP References Volume 5: Commercial, Industrial, Residential Controls Section 1: Introduction……………………………………………………………… 1 1.1 Organization…………………………………………………….. 2 1.2 Updates………………………………………………………….. 3 Section 2: Industrial Facilities……………………………………………………… 4 2.1 Industrial Controls...... ………….. 4 BMP 1: Loading Dock Design Features…………………… 5 BMP 2: Equipment Yard Design Features………………… 6 BMP 3: Fleet or Equipment Fueling Design Features…… 7 BMP 4: Access Roads and Rail Corridors………………… 8 2.2 Day-to-Day Operations for Industrial Sites…………………… 9 BMP 5: Non-Stormwater Discharges to Drains…………… 10 BMP 6: Vehicle and Equipment Fueling…………………… 12 BMP 7: Vehicle and Equipment Cleaning…………………. 14 BMP 8: Vehicle and Equipment Maintenance & Repair….. 15 BMP 9: Outdoor Loading/Unloading of Materials………….. 18 BMP 10: Outdoor Container Storage of Liquids…………….. 20 BMP 11: Outdoor Process Equipment……………………….. 24 BMP 12: Outdoor Storage of Raw Materials………………… 26 BMP 13: Waste Handling and Disposal……………………… 28 BMP 14: Contaminated or Erodible Surface Areas…………. 32 BMP 15: Building and Grounds Maintenance……………….. 34 BMP 16: Building Repair, Remodeling, & Construction……. 36 BMP 17: Employee Training………………………………….. 39 BMP 18: Spill Prevention Control and Cleanup……………. 40 Section 3: Commercial Facilities…………………………………………………….. 42 BMP 19: Restaurant Control Practices……………………………….. 44 BMP 20: Auto Repair and Maintenance Controls…………………… 46 BMP 21: Mobile and Surface Cleaning Control Practices…………... 48 BMP 22:Marinas…………………………………………………………51 Section 4: Residential Facilities……………………………………………………… 53 BMP 23: Automobile Maintenance……………………………………. 54 BMP 24: Home, Lawn, and Garden Care…………………………….. 56 BMP 25: Solid and Sanitary Waste Storage and Disposal…………. 59 BMP 26: Swimming Pool and Spa Maintenance……………………. 60 BMP 27: Household Hazardous Material Use and Disposal……….. 61 6HFWLRQ,QWURGXFWLRQ 7KHCatalog of Stormwater Best Management Practices for Idaho Cities and 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roll 12 rolls IF1527X75FTB 1.5” x 27” x 75’ N/A 3 rolls Other pad and roll sizes are available upon request. Cartons sized to ship by UPS. Inlet Filter Installation Instructions: Inlet Filter Maintenance Instructions: 1. Remove sediment, debris, Inlet Filter will collect a lot ice and snow from the inlet grate of sediment. Clean Inlet Filter surface and surrounding area. while mounted on the grate, even if ponded water surrounds the 2. Verify fit by placing filter over inlet. This unique feature en- inlet grate to ensure that Inlet sures all water entering the grate Filter extends at least one inch is filtered. Sweep sides and top beyond the front and both curb of Inlet Filter to remove sediment ends. The overlap slows water and debris after each rain event. flow and starts filtering sediment and debris before water drops into the inlet. 1. Remove sediment from the 3. Position the mat. Place Inlet sides of the filter by sweeping Filter on grate with the net side away from Inlet Filter. down, flush to the back edge and extending beyond the grate opening on the front and both sides. The zip ties attach Inlet Filter to the inlet grate cover WITHOUT LIFTING THE GRATE COVER. 4. Insert zip ties. Lift Inlet Filter slightly to enable you to see 2. Remove sediment from the the first grate bar from the edge of the grate cover. top of the filter by sweeping off of Inlet Filter. Push the zip tie down through the Inlet Filter and loop under the grate bar. Insert the pointed end of the zip tie about 2” away from the first zip tie penetration and push back up through the filter. Push the pointed end of the zip tie into the receiving end just enough to hold ends loosely. LEAVE ZIP TIES LOOSE UNTIL ALL TIES ARE LOOPED THROUGH THE MATS AROUND THE GRATES. Repeat Step 4 until all zip ties Inlet Filter is prepared for the are installed loosely. next rain event. 5. Tighten zip ties. After attaching all of the zip ties, re-position Inlet Filter to completely cover and overlap the grate. Pull free end of zip-ties hand tight to anchor Inlet Filter to the grate. Cut off free end of zip ties to leave a 1” tail. Blocksom & Co. P.O. Box 2007 Michigan City, IN 46361-8007 Toll free: (800) 745-1408 Fax: (219) 874-3752