Jordan aquifer figure e5 observed groundwater elevations. On march 19, 2019 napa county public works provided the groundwater sustainability. Pdf delineation of potential groundwater recharge zones. Groundwater flow paths are predominantly controlled by the lateral distribution of ice overburden pressure values hoaglund et al.
Design requirements for infiltration trenches with soils. Geotechnical consulting, geologic hazard analysis, retaining. As the vertical separation disappears, treatment of the effluent is adversely affected. Our services include subsurface investigations, infiltration analysis, stormwater management options, dewatering systems, shoring, retaining walls, foundations, ground improvement, and. Groundwater flow velocities are much slower than surface water flow velocities, except in limestone karst formations, where groundwater flows through caves and large solution channels. Vashon island landfill 2005 annual groundwater data evaluation report. Geology and groundwater resources of southwestern king county, washington. King county, vashon island treatment plant upgrade, vashon island, wa. Quaternary aquifer and surface water figure e2 observed groundwater elevations. Common types of pumping tests that you may perform include the following constantrate tests maintain pumping at the control well at a constant rate. Water supply bulletin 28 1969 describes an investigation of the extent of ground water development in southwest king county and provides an understanding of study area geology in sufficient detail to explain the occurrence and predicted future availability of ground.
Any use of trade, product, or firm names is for descriptive purposes only and does not imply. Most effluent from an onsite sewage system eventually enters the groundwater. Prairie du chien aquifer figure e4 observed groundwater elevations. Except, a variance may be granted if documentation is provided that demonstrates the construction and operation of the well. Hydrology and geotechnical engineering report pdf december 20, 20. The texas legislature created groundwater management areas gmas in 2003 with the passage of hb 1763. Queen city and sparta aquifers, atascosa and mcmullen counties, texas. Pros and cons of ecology versus king county manual. Richard was project hydrogeologist on this project to evaluate soil and groundwater conditions associated with a proposed stormwater detention or infiltration structure. Groundwater flow paths and directions are highly modified during glaciations. The boundary condition on the phreatic surface, eq.
Croft abstract ground water suitable for domestic and livestock supplies in mckenzie county is available from three aquifer systems in semiconsolidated rocks of late cretaceous and tertiary age. King county includes parts of two major physiographic features. Deeper in the aquifer where the groundwater flowpaths are much longer, water may be in the groundwater system decades or maybe even hundreds of years. Tulare lake hydrologic region californias groundwater san joaquin valley groundwater basin bulletin 118 last update 12006 san joaquin valley groundwater basin kings subbasin groundwater subbasin number. King county has implemented online vendor registration ovr to permit vendors, consultants and contractors to register their business with the county by creating a unique user id, or to visit the website as a guest. Overlake village station infiltration vault redmond, wa. Prince georges county, md water table wells usgs water. Stepdrawdown tests proceed through a sequence of constantrate steps at the control well to determine well performance characteristics such as.
Mounding of the water table due to infiltration from the site is not expected. Id also like to discuss subsurface mounding relative to upgradientdowngradient. Napa county, in support of the napa county gsa regularly monitors groundwater levels. Findings stormwater staff from all jurisdictions in king county, as well as development professionals, provided their insights about the lay of the land of low impact developmentgreen stormwater infrastructure lidgsi and other related stormwater issues such.
Overlake village station regional infiltration facility alternatives analysis pdf december 20, 20. Indeed, the subglacial flow pattern is characterized by a. Feb 20, 2020 in the present study, an effort was made in kashmir valley, nwhimalayas to delineate potential groundwater areas using gis and analytical hierarchy method ahp by incorporating remote sensing. Groundwater mounding analysis is generally required for infiltration. Queen city and sparta aquifers, atascosa and mcmullen. The localized groundwater surface may temporarily rise below an infiltration best management practice bmp, creating a condition termed groundwater mounding. These assumptions are closely approximated when the water slope is small usually groundwater flows faster where the hydraulic gradient andor hydraulic conductivity are larger. Perform hantush water mounding calculations online. Annual report water year 2018 pdf to the board of supervisors. Peter aquifer figure e3 observed groundwater elevations. Dec 17, 2019 everyone in napa county has a stake in protecting the countys groundwater resources. Hantush groundwater mounding solutions aqtesolv tour.
To meet the requirements of state and federal law and the citys municipal stormwater npdes permit. Concentrating recharge in a small area can cause groundwater mounding that affects the basements of nearby homes and other structures. King county provides two methods to find and display information in its databases. Mounding, flow pattern and contaminant distribution of water recharge to a water table aquifer introduction groundwater mounding due to local recharge is generally computed from a solution of the forchheimer equation using the dupuit assumptions. Hydrogeology supplement number 1 pdf groundwater mounding. Each year an annual report on groundwater conditions and trends is provided to the public. Bracs queen city aquifer groundwater volume estimates source.
Tulare lake hydrologic region californias groundwater san joaquin valley groundwater basin bulletin 118 last update 12006 recharge efforts in the subbasin. San joaquin valley groundwater basin kings subbasin. This page is produced by the king county groundwater protection program. This is the most commonly used pumping test method for obtaining estimates of aquifer properties. Too much will saturate soil, reduce or eliminate unsat flow, may cause gw mounding key relevant information.
Methods for quantitatively predicting the height and extent of groundwater mounding beneath and near. Vashon gwmp, updated area characterization and data analysis for environmental health division, king county vashonmaury island gwma tables, appendices. Notice the usgs water resources mission areas priority is to maintain the safety and wellbeing of our communities, including providing critical situational awareness in times of flooding in all 50 u. We also have online sales of a wide range of groundwater sampling equipment including ysi 556, and solinst levelogger including software such as modflow, rbca tool kit, hydrus, surfer 9, and groundwater vistas. Our hydrologic monitoring stations continue to send data in near realtime to nwisweb, and we are continuing critical water monitoring activities to. Document summaries and areas for further investigation. Flow control facilities, as described in this manual, are detention or.
Digital products may not be reproduced or redistributed in any form or by any means without the express written authorization of king county. The king county backwater kcbw program is a standard step backwater analysis program for pipe networks, culverts, and simple open channels. Geological survey scientific investigations report 20105102, 64 p. Buoncristiani, in past glacial environments second edition, 2018. Groundwater mounding will be introduced by supplying a local recharge to the unfoncinfed aquifer. Groundwater studies by the washington state department of ecology. The fresnoclovis metropolitan area uses a regional sewage treatment facility that disposes of water in percolation ponds southwest of fresno. In 2001, the king count council created the groundwater protection program by king county code chapter 9. Groundwater mounding occurs beneath stormwater management structures designed to infiltrate stormwater runoff. A community resource a clean and dependable supply of water is necessary to ensure a high quality of life and strong economy.
Aqtesolv pro version only includes solutions by hantush 1967 to compute the transient watertable rise height of groundwater mound beneath rectangular and circular recharge areas infiltration basins or ponds. This service provided by king county science and technical support section king county seeks to protect the health and wellbeing of its residents who rely on groundwater for drinking, and to ensure enough groundwater replenishes streams, lakes and wetlands to support fish and wildlife in the future. Groundwater well interactive map viewer and data in king county. The following is part of a dohattended discussion held recently in king county relating to overlap between some common sfr stormwater best management practices bmps and facilities king county. We provide geotechnical consulting services for projects with a wide range of needs. They were created to provide for the conservation, preservation, protection, recharging, and prevention of water of the groundwater, and of groundwater reservoirs or their subdivisions. Aqtesolv pro version only includes solutions by hantush 1967 to compute the transient watertable rise height of groundwater mound beneath rectangular and circular recharge areas infiltration basins or ponds use the groundwater mounding tool in aqtesolv to evaluate infiltration from recharge areas such as the following scenarios septic fields. Stormwater management manual for western washington access. The king county groundwater protection program maintains geographic and tabular databases of groundwater quality and water level data. The groundwater protection program provides management, policy, and technical expertise to help protect the quality and quantity of the groundwater resources in king county. Dion abstract east king county is a rapidly growing 250square mile area east of seattle in western washington. Department of environmental resources 3800 cornucopia way, suite c, modesto, ca 953589592 phone. Dec 19, 20 funding was provided by redmonds stormwater utility, along with support from the king county flood control district and the king county waterworks grant program. Document summaries and areas for further investigation maury island gravel mining impact studies prepared for.
Text string of 4 letters representing the code for the king county wlrd hydrobasin. Mounding can occur in areas where infiltrating water intersects a groundwater table and the rate of water entering the subsurface is greater than the rate at which water is conveyed away from the infiltration system susilo, 2009. The county contains a third of the 3 million people in washington, most of the population being concentrated in the seattle metropolitan area. Use the groundwater mounding tool in aqtesolv to evaluate infiltration from recharge areas such as the following scenarios. Water supply bulletin 28 1969 describes an investigation of the extent of ground water development in southwest king county and provides an understanding of study area geology in sufficient detail to explain the occurrence and predicted future availability of ground water. Overlake village station regional infiltration facility 30% design report pdf. Vashon island landfill 2004 annual groundwater data evaluation report. Geology and groundwater resources of southwestern king. Data are included with the onsite well data, in the pdf files. Response to the may 3, 2012 voluntary investigation and remediation plan application comment letter, the loef company property, 590 old hull road, athens, clarke county, georgia. However, it is evident from figures 8 and 9 that only a portion of the distance along the axis. The objective of this site is to provide background information, tools and resources specific to implementation of the sustainable groundwater management act sgma for the kings and tulare lake groundwater subbasins, current and historic groundwater conditions, and the status of planning and project implementation activities. The movie project was funded by a splash water quality educational grant from king county with additional support from water tenders and city of renton, washington.
Kitsap county groundwater management plan groundwater issues papers chehalis river tmdl, ground water reconnaissance and estimated inflows. Groundwater mounding wcowma onsite wastewater management. Twdb technical note 1401 values are rounded to within 1% of the total atascosa county tds range milligrams per liter volume millions of acrefeet fresh 0999 19. A groundwater mound will disperse radially in lowgradient. Vashon island landfill 2003 annual groundwater data evaluation report. Volume iii of the stormwater manual contains three chapters. A community resource page 1 dodge county groundwater. If you need to print pages from this book, we recommend downloading it as a pdf. King county board of health king county solid waste regulations title 10, rules. Stormwater management in western washington access wa.
Geohydrology and groundwater quality of east king county, washington by g. Geohydrology and groundwater quality of east king county. Groundwater is of particular importance since this resource serves as the primary source of water for dodge county residents and industries. Groundwater the depth to the permanent groundwater level, based on nearby water wells, is greater than 100 ft. Georgia environmental protection division response and. Title page for usgs, wrd, mddedc water science center. Although the total supply of water in king county is large, water problems are inevitable because of the large and rapidly expanding population. What is the maximum mounding at the water table if litersday of water is discharged on an area 3 x 4 m after 2 days all water infiltrates. Well owners guide, a guide for private well owners in napa county pdf. The vault was put into service in march 2018 and will be transferred from sound transit to the city of redmond with completion of the light rail station.
Pdf in the present study, an effort was made in kashmir valley, nwhimalayas to delineate potential groundwater areas using gis and analytical. King county data are made available with the understanding that they shall be used exclusively by the obtainer or hisher authorized agents. Groundwater data in king county the king county groundwater protection program maintains geographic and tabular databases of groundwater quality and water level data. To protect the functions and values of environmentally critical areas as required under. Because of the rapid growth, the demand for goodquality ground water is increasing. A community resource page 4 supplied by these shallow flowpaths. Simulation of groundwater mounding beneath hypothetical. Therefore disposal is essential, but should occur only after acceptable treatment is accomplished. Low impact developmentgreen stormwater infrastructure. Structure and brackish groundwater matthew wise, p. Stormwater infiltration and groundwater mounding minnesota. Simulation of groundwater mounding beneath hypothetical stormwater infiltration basins potentially affected nearby structure impervious surfaces stormwater infiltration basin depth of basin ground water mound beneath stormwater infiltration basin during storm event maximum height of groundwater mound 0. As a project of the washington state department of ecologys ecology stormwater action monitoring sam program, this work is receiving technical.
Without sustainable groundwater resources, the character of the county would be significantly different in terms of its economy, communities, and ecology. Uic wells other than infiltration trenches with perforated pipe are required to be designed to the. Unfortunately, this book cant be printed from the openbook. Growth and decay of groundwatermounds in response to uniform percolation, water resources research vol. Groundwater resources of mckenzie county, north dakota. They measured precipitation, groundwater level, and groundwater temperature and concluded that impacts from stormwater infiltration had only localized temporary effects and didnt negatively impact the water table.
He estimated soil infiltration rates based on the washington. Groundwater management areas high plains water district. Values in spm based on soil infiltration characteristics, need to consider underlying materials. Pacific groundwater group 2377 eastlake avenue east, suite 200 seattle, washington, 98102 2063290141. Groundwater resources of mckenzie county, north dakota by m. Groundwater studies by the washington state department of. The following is part of a dohattended discussion held recently in king county relating to overlap between some common sfr stormwater best management practices bmps and facilities king county stormwater manual, and correspondingrelated oss set back table items. To learn more about this group and its responsibilities, please read about the groundwater protection program. Groundwater mounding causes, issues and prevention hlr water dumped daily onto the same piece of land, every day, for a long time. Our services include subsurface investigations, infiltration analysis, stormwater management options, dewatering systems, shoring, retaining walls, foundations, ground improvement, and pavement design. Welcome to the kings river region groundwater information portal. Text string representing the king county wlrd hydrobasin name from drnbasin.
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