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Groundwater Recharge from a Changing Landscape
ST. ANTHONY FALLS LABORATORY Engineering, Environmental and Geophysical Fluid Dynamics Project Report No. 490 Groundwater Recharge from a Changing Landscape by Timothy Erickson and Heinz G. Stefan Prepared for Minnesota Pollution Control Agency St. Paul, Minnesota May, 2007 Minneapolis, Minnesota The University of Minnesota is committed to the policy that all persons shall have equal access to its programs, facilities, and employment without regard to race, religion, color, sex, national origin, handicap, age or veteran status. 2 Abstract Urban development of rural and natural areas is an important issue and concern for many water resource management organizations and wildlife organizations. Change in groundwater recharge is one of the many effects of urbanization. Groundwater supplies to streams are necessary to sustain cold water organisms such as trout. An investigation of the changes of groundwater recharge associated with urbanization of rural and natural areas was conducted. The Vermillion River watershed, which is both a world class trout stream and on the fringes of the metro area of Minneapolis and St. Paul, Minnesota, was used for a case study. Substantial changes in groundwater recharge could destroy the cold water habitat of trout. In this report we give first an overview of different methods available to estimate recharge. We then present in some detail two models to quantify the changes in recharge that can be expected in a developing area. We finally apply these two models to a tributary watershed of the Vermillion River. In this report we discuss several techniques that can be used to estimate groundwater recharge: (1) the recession-curve-displacement method and (2) the base-flow-separation method that both use only streamflow records (Rutledge 1993, Lee and Chen 2003); (3) a recharge map developed by the USGS for the state of Minnesota (Lorenz and Delin 2007); (4) a minimal recharge map developed by the Minnesota Geological Survey using statistical methods (Ruhl et al. -
Miami-Dade County Drainage and Canals Flood Complaint Form
MIAMI-DADE COUNTY DRAINAGE AND CANALS FLOOD COMPLAINT FORM Service Request # _____________ Complaint Date Time AM PM Resident/Complainant Name Address Telephone Nearest Street Intersection of Flooding or Location of Flooding Is this the first time you report this? Yes No If No, date PLEASE SELECT ONLY ONE (1) COMPLAINT TYPE AND ANSWER RELATED QUESTIONS FOR BETTER SERVICE Type of Complaint 302 Clogged Storm Drain Is the water on top of drain now? Yes No How long does it take for the water to drain? What is the exact location of the drain? Is the area a new development? Yes No Was there a recent drainage project in the area? Yes No 303 Standing Water (No Drain) How deep is the water? How hard did it rain? Light Moderate Heavy Is your property flooded? Yes No Is your property in a new development? Yes No Where is the nearest drain? Flooding/Standing Water (Localized) Is the water flooding the inside of your residence? Yes No Is the water in your driveway / swale? Yes No Is the water across the roadway? Yes No Is it affecting traffic? Yes No How long does the water remain after rainfall? Page 1 of 2 MIAMI-DADE COUNTY DRAINAGE AND CANALS FLOOD COMPLAINT FORM Canal Complaints Solid waste (floating debris, bottles, cans, etc.) present Aquatic vegetation overgrown Needs mowing / treating vegetation on canal bank Bank instability due to Erosion / Collapses are present Culvert cleaning needed Damaged culvert / Headwall Encroachment of Easement / Right of Way Cutting / trimming of trees on a canal Right of Way needed Damaged Guardrails / Fence Canal Signs damaged / down Other Other Nature of Complaint For more information, call (305) 372-6688 Page 2 of 2 . -
Acid Sulfate Soil Materials
Site contamination —acid sulfate soil materials Issued November 2007 EPA 638/07: This guideline has been prepared to provide information to those involved in activities that may disturb acid sulfate soil materials (including soil, sediment and rock), the identification of these materials and measures for environmental management. What are acid sulfate soil materials? Acid sulfate soil materials is the term applied to soils, sediment or rock in the environment that contain elevated concentrations of metal sulfides (principally pyriteFeS2 or monosulfides in the form of iron sulfideFeS), which generate acidic conditions when exposed to oxygen. Identified impacts from this acidity cause minerals in soils to dissolve and liberate soluble and colloidal aluminium and iron, which may potentially impact on human health and the environment, and may also result in damage to infrastructure constructed on acid sulfate soil materials. Drainage of peaty acid sulfate soil material also results in the substantial production of the greenhouse gases carbon dioxide (CO2) and nitrous oxide (N2O). The oxidation of metal sulfides is a function of natural weathering processes. This process is slow however, and, generally, weathering alone does not pose an environmental concern. The rate of acid generation is increased greatly through human activities which expose large amounts of soil to air (eg via excavation processes). This is most commonly associated with (but not necessarily confined to) mining activities. Soil horizons that contain sulfides are called ‘sulfidic materials’ (Isbell 1996; Soil Survey Staff 2003) and can be environmentally damaging if exposed to air by disturbance. Exposure results in the oxidation of pyrite. This process transforms sulfidic material to sulfuric material when, on oxidation, the material develops a pH 4 or less (Isbell 1996; Soil Survey Staff 2003). -
Drainage Water Management R
doi:10.2489/jswc.67.6.167A RESEARCH INTRODUCTION Drainage water management R. Wayne Skaggs, Norman R. Fausey, and Robert O. Evans his article introduces a series of the most productive in the world. Drainage needed. Drainage water management, or papers that report results of field ditches or subsurface drains (tile or plastic controlled drainage, emerged as an effec- T studies to determine the effec- drain tubing) are used to remove excess tive practice for reducing losses of N in tiveness of drainage water management water and lower water tables, improve traf- drainage waters in the 1970s and 1980s. (DWM) on conserving drainage water ficability so that field operations can be The practice is inherently based on the and reducing losses of nitrogen (N) to sur- done in a timely manner, prevent water fact that the same drainage intensity is face waters. The series is focused on the logging, and increase yields. Drainage is not required all the time. It is possible to performance of the DWM (also called also needed to manage soil salinity in irri- dramatically reduce drainage rates during controlled drainage [CD]) practice in the gated arid and semiarid croplands. some parts of the year, such as the winter US Midwest, where N leached from mil- Drainage has been used to enhance crop months, without negatively affecting crop lions of acres of cropland contributes to production since the time of the Roman production. Drainage water management surface water quality problems on both Empire, and probably earlier (Luthin may also be used after the crop is planted local and national scales. -
Dayton Valley Development Guidelines Final Draft
FINAL DRAFT Dayton Valley Development Guidelines Supplement to the Dayton Valley Area Drainage Master Plan prepared for August Lyon County | Storey County | 2019 Carson Water Subconservancy District i FINAL DRAFT Table of Contents 1 Introduction .......................................................................................................................................... 1 1.1 Background and Rationale ............................................................................................................ 3 1.1.1 More Frequent Flooding ....................................................................................................... 3 1.1.2 Larger Flood Peaks ................................................................................................................ 3 1.1.3 Scour and Erosion ................................................................................................................. 3 1.1.4 Flow Diversion ....................................................................................................................... 3 1.1.5 Flow Concentration ............................................................................................................... 3 1.1.6 Expanded Floodplains ........................................................................................................... 3 1.1.7 Reduced Surface Storage ...................................................................................................... 3 1.1.8 Decreased Ground Water Recharge .................................................................................... -
New York State Canal Corporation Flood Warning and Optimization System
K19-10283720JGM New York State Canal Corporation Flood Warning and Optimization System SCOPE OF SERVICES K19-10283720JGM Contents 1 Background of the Project........................................................................................................... 3 2 Existing FWOS features ............................................................................................................... 5 2.1 Data Import Interfaces ............................................................................................................ 5 2.2 Numeric Models ...................................................................................................................... 5 2.2.1 Hydrologic Model............................................................................................................. 6 2.2.2 Hydraulic Model .............................................................................................................. 6 2.3 Data Dissemination Interfaces .................................................................................................. 6 3 Technical Landscape ................................................................................................................... 7 3.1 Software ................................................................................................................................. 7 3.1.1 Systems......................................................................................................................... 7 3.1.2 FWOS Software .............................................................................................................. -
The Groundwater Recharge Function of Small Wetlands in the Semi-Arid Northern Prairies
University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Great Plains Research: A Journal of Natural and Social Sciences Great Plains Studies, Center for Spring 1998 The Groundwater Recharge Function of Small Wetlands in the Semi-Arid Northern Prairies Garth van der Kamp National Hydrology Research Institute, Environment Canada Masaki Hayashi University of Calgary, Canada Follow this and additional works at: https://digitalcommons.unl.edu/greatplainsresearch Part of the Other International and Area Studies Commons van der Kamp, Garth and Hayashi, Masaki, "The Groundwater Recharge Function of Small Wetlands in the Semi-Arid Northern Prairies" (1998). Great Plains Research: A Journal of Natural and Social Sciences. 366. https://digitalcommons.unl.edu/greatplainsresearch/366 This Article is brought to you for free and open access by the Great Plains Studies, Center for at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Great Plains Research: A Journal of Natural and Social Sciences by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. Great Plains Research 8 (Spring 1998):39-56 © Copyright by the Center for Great Plains Studies THE GROUNDWATER RECHARGE FUNCTION OF SMALL WETLANDS IN THE SEMI-ARID NORTHERN PRAIRIES Garth van der Kamp National Hydrology Research Institute, Environment Canada 11 Innovation Boulevard, Saskatoon, SK Canada S7N 3H5 and Masaki Hayashi Department ofGeology and Geophysics, University of Calgary 2500 University Drive, Calgary, AB Canada T2N IN4 Abstract. Small wetlands in the semi-arid northern prairie region are focal pointsfor groundwater recharge. Hence the groundwater recharge function of the wetlands is an important consideration in development of wetland conservation policies. -
Upper Susquehanna River Basin Flood Damage Reduction Study
Final Fish and Wildlife Coordination Act Report Upper Susquehanna Comprehensive Flood Damage Reduction Study Prepared For: U.S. Army Corps of Engineers Prepared By: Department of the Interior U.S. Fish and Wildlife Service New York Field Office Cortland, New York Preparers: Anne Secord & Andy Lowell New York Field Office Supervisor: David Stilwell February 2019 EXECUTIVE SUMMARY Flooding in the Upper Susquehanna watershed of New York State frequently causes damage to infrastructure that has been built within flood-prone areas. This report identifies a suite of watershed activities, such as urban development, wetland elimination, stream alterations, and certain agricultural practices that have contributed to flooding of developed areas. Structural flood control measures, such as dams, levees, and floodwalls have been constructed, but are insufficient to address all floodwater-human conflicts. The U.S. Army Corps of Engineers (USACE) is evaluating a number of new structural and non-structural measures to reduce flood damages in the watershed. The New York State Department of Environmental Conservation (NYSDEC) is the “local sponsor” for this study and provides half of the study funding. New structural flood control measures that USACE is evaluating for the watershed largely consist of new levees/floodwalls, rebuilding levees/floodwalls, snagging and clearing of woody material from rivers and removing riverine shoals. Non-structural measures being evaluated include elevating structures, acquisition of structures and property, relocating at-risk structures, developing land use plans and flood proofing. Some of the proposed structural measures, if implemented as proposed, have the potential to adversely impact riparian habitat, wetlands, and riverine aquatic habitat. In addition to the alternatives currently being considered by the USACE, the U.S. -
17 Major Drainage Basins
HUC 8 HYDROLOGIC UNIT NAME CLINTON 04120101 Chautauqua-Conneaut FRANKLIN 04150409 CHAMPLAIN MASSENA FORT COVINGTON MOOERS ST LAWRENCE CLINTON 04120102 Cattaraugus BOMBAY WESTVILLE CONSTABLE CHATEAUGAY NYS Counties & BURKE LOUISVILLE 04120103 Buffalo-Eighteenmile BRASHER 04150308 CHAZY ALTONA ELLENBURG BANGOR WADDINGTON NORFOLK MOIRA 04120104 Niagara ESSEX MALONE DEC Regions JEFFERSON 6 04150307 BEEKMANTOWN MADRID 05010001 Upper Allegheny LAWRENCE BELLMONT STOCKHOLM DANNEMORA BRANDON DICKINSON PLATTSBURGH LEWIS OGDENSBURG CITY LISBON 05010002 Conewango 5 PLATTSBURGH CITY HAMILTON POTSDAM SCHUYLER FALLS SARANAC 05010004 French WARREN OSWEGATCHIE DUANE OSWEGO 04150306 PERU 04130001 Oak Orchard-Twelvemile CANTON PARISHVILLE ORLEANS WASHINGTON NIAGARA DE PEYSTER ONEIDA MORRISTOWN HOPKINTON WAVERLY PIERREPONT FRANKLIN 04140101 Irondequoit-Ninemile AUSABLE MONROE WAYNE BLACK BROOK FULTON SARATOGA DEKALB HERKIMER BRIGHTON GENESEE SANTA CLARA CHESTERFIELD 04140102 Salmon-Sandy ONONDAGA NYS Major 04150406 MACOMB 04150304 HAMMOND ONTARIO MADISON MONTGOMERY RUSSELL 04150102 Chaumont-Perch ERIE SENECA CAYUGA SCHENECTADY HERMON WILLSBORO ST ARMAND WILMINGTON JAY WYOMING GOUVERNEUR RENSSELAER ALEXANDRIA CLARE LIVINGSTON YATES 04130002 Upper Genesee OTSEGO ROSSIE COLTON CORTLAND ALBANY ORLEANS 04150301 04150404 SCHOHARIE ALEXANDRIA LEWIS 7 EDWARDS 04150408 CHENANGO FOWLER ESSEX 04130003 Lower Genesee 8 TOMPKINS CLAYTON SCHUYLER 9 4 THERESA 04150302 TUPPER LAKE HARRIETSTOWN NORTH ELBA CHAUTAUQUA CATTARAUGUS PIERCEFIELD 02050104 Tioga ALLEGANY STEUBEN -
Pine Knot Mine Drainage Tunnel –
QUANTITY AND QUALITY OF STREAM WATER DRAINING MINED AREAS OF THE UPPER SCHUYLKILL RIVER BASIN, SCHUYLKILL COUNTY, PENNSYLVANIA, USA, 2005-20071 Charles A. Cravotta III,2 and John M. Nantz Abstract: Hydrologic effects of abandoned anthracite mines were documented by continuous streamflow gaging coupled with synoptic streamflow and water- quality monitoring in headwater reaches and at the mouths of major tributaries in the upper Schuylkill River Basin, Pa., during 2005-2007. Hydrograph separation of the daily average streamflow for 10 streamflow-gaging stations was used to evaluate the annual streamflow characteristics for October 2005 through September 2006. Maps showing stream locations and areas underlain by underground mines were used to explain the differences in total annual runoff, base flow, and streamflow yields (streamflow/drainage area) for the gaged watersheds. For example, one stream that had the lowest yield (59.2 cm/yr) could have lost water to an underground mine that extended beneath the topographic watershed divide, whereas the neighboring stream that had the highest yield (97.3 cm/yr) gained that water as abandoned mine drainage (AMD). Although the stream-water chemistry and fish abundance were poor downstream of this site and others where AMD was a major source of streamflow, the neighboring stream that had diminished streamflow met relevant in-stream water-quality criteria and supported a diverse fish community. If streamflow losses could be reduced, natural streamflow and water quality could be maintained in the watersheds with lower than normal yields. Likewise, stream restoration could lead to decreases in discharges of AMD from underground mines, with potential for decreased metal loading and corresponding improvements in downstream conditions. -
The Effect of Different Confluence Confirmation Strategies on the Obturation of Vertucci Type II Canal: Micro-CT Analysis
Restor Dent Endod. 2021 Feb;46(1):e12 https://doi.org/10.5395/rde.2021.46.e12 pISSN 2234-7658·eISSN 2234-7666 Research Article The effect of different confluence confirmation strategies on the obturation of Vertucci type II canal: micro-CT analysis Seungjae Do , Min-Seock Seo * Department of Conservative Dentistry, Wonkwang University Daejeon Dental Hospital, Daejeon, Korea Received: Apr 8, 2020 Revised: Jun 7, 2020 ABSTRACT Accepted: Jun 17, 2020 Objectives: The present study aims to compare the obturation quality of 2 confluence Do S, Seo MS confirmation techniques in artificial maxillary first premolars showing Vertucci type II root canal configuration. *Correspondence to Min-Seock Seo, DDS, PhD Materials and Methods: Thirty artificial maxillary premolars having Vertucci type II root Associate Professor, Department of canal configuration were made. They were divided into 3 groups according to the confluence Conservative Dentistry, Wonkwang University confirmation technique as follows. Gutta-percha indentation (GPI) group (confluence Daejeon Dental Hospital, 77 Dunsan-ro, Seo- confirmation using a gutta-percha cone and a K file); electronic apex locator (EAL) group gu, Daejeon 35233, Korea. (confluence confirmation using K files and EAL); and no confluence detection (NCD) E-mail: [email protected] group. In the GPI group and the EAL group, shaping and obturation were performed with Copyright © 2021. The Korean Academy of the modified working length (WL). In the NCD group, shaping was performed without WL Conservative Dentistry adjustment and obturation was carried out with an adjusted master cone. Micro-computed This is an Open Access article distributed tomography was used before preparation and after obturation to calculate the percentage under the terms of the Creative Commons of gutta-percha occupied volume (%GPv) and the volume increase in the apical 4 mm. -
Stop Log Flood Barriers
PRODUCT STOP LOG FLOOD BARRIERS Flood Control International Incorporated offers removable stop log barriers that are engineered to provide similar levels of protection to permanent flood defenses, but with the distinct advantage of being fully removable when not required. They comprise aluminum panels that are inserted into steel channels. Custom made clamps compress specialist gaskets to create a reliable barrier against flood water. These stop log barriers can be supplied for virtually any configuration including arcs, closed rectangles or circles and straight runs of any length. The system can be used on slopes up to 20° and can be stepped for steeper gradients. USES Each system is load calculated based on application and the prevailing flood • Single building openings. conditions and can be configured for flood depths up to 13 feet. A four-sided • Openings in flood walls. detail is available for openings that may become fully submerged. • Stainless / aluminum system for marine environments. To facilitate installation in new builds, we can supply preformed ground plates • Fully removable perimeter defense to with integral anchors for the demountable supports. The systems can be buildings. also retrospectively fitted to suitable existing foundations in which case load • A ‘usually stored’ system for erection certified, chemically fixed sleeve anchors are used to attach the demountable when flood warnings received. supports. This leaves only stainless steel bolt blanks at each post BENEFITS location. Due to the strength of our beams, this can • Low cost system. be at 10 feet spacing. • Lightweight - sections allow safe lifting of 10ft beams by one person for rapid Purpose designed gaskets that resist silt clogging and reform even after deployment.