Showing results for: in-situ well monitoring Articles
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The “Straight Skinny” on bentonite-based drilling muds & their standard practice use in the horizontal remediation well industry
Let’s make our point up front: 1) bentonite-based drilling fluid is NOT bad for horizontal remediation well (HRW) projects; 2) it does not damage the formation; 3) it is a naturally occurring clay material that is mined; and 4) it does flush easily/adequately during well development. Most remediation professionals have designed and/or installed vertical wells at one time or another during ...
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Low-Flow Groundwater Sampling- Techniques Improve Sample Quality and Reduce Monitoring Program Costs
Ground water is often sampled to determine its water chemistry, to see if the water is acceptable for human consumption, or to sec if industrial activity may have caused contamination. Sampling ground water from monitoring wells has traditionally involved "purging" the well to remove stagnant water that may not be representative of in situ ground water quality. Regulatory guidance often ...
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Case study: Redwood City
GTR + C3 Overview Neighborhood: Downtown Heating Tubes: 9 Heating Period: 6.5 Months Destruction Rate Efficiency: > 99% Contaminant: PCE, TCE Geology: Silt Silty Clay Volume: 142 yd3 Overview The former Dry Cleaner site was located in Redwood City, California, contaminated by tetrachloroethylene (PCE) with a maximum concentration of 7,100 μg/kg in soils at a depth of 5 feet below ...
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WRD Secures Sustainable Water Independence with Continuous Groundwater Monitoring
Overview A Southern California groundwater management agency is capitalizing on the latest remote water monitoring technology to simplify and expand access to continuous groundwater data used to ensure a sustainable water future for its service area. Challenge The Water Replenishment District (WRD) is responsible for monitoring and testing groundwater throughout a 420-square-mile region of ...
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Low-Flow (Minimal Drawdown) Ground-Water Sampling Procedures
Untitled Document Background The Regional Superfund Ground Water Forum is a group of ground-water scientists, representing EPA's Regional Superfund Offices, organized to exchange information related to ground-water remediation at Superfund sites. One of the major concerns of the Forum is the sampling of ground water to support site assessment and remedial performance ...
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