groundwater elevation Articles
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Stream Restoration Project also Recharges Groundwater and Revives Wetlands
Challenge The Bacon Ridge Branch Stream Restoration Project in Maryland presented multiple opportunities for the experts in stream and wetlands restoration at GreenVest, LLC. The streams on the Bacon Ridge Branch site were deeply incised. Historic agricultural land use combined with runoff from surrounding development activity upstream had carved steep banks four to ten feet deep that were ...
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Cost-Effective Destruction of Petroleum Hydrocarbon Contaminants with Expedited Residual Mass - Smear Zone (LNAPL) Destruction under Anaerobic Conditions via Biostimulation
One-year program to evaluate biostimulation as a LNAPL remedial strategy using TPHenhanced. Program goals include 1) enhance respiration of indigenous heterotrophic bacteria 2) expedite residual source mass (LNAPL) solubilization and 3) enhance dissolved-phase petroleum hydrocarbon (PHC) destruction. Former automobile fueling-service facility from 1950 to 1982. PHC release documented during 2003 ...
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Cost-Effective Destruction of Petroleum Hydrocarbon Contaminants with Expedited Residual Mass Solubilization under Anaerobic Conditions via Biostimulation
Full-scale biostimulation program using the additive TPHenhanced to 1) enhance respiration of native heterotrophic bacteria; 2) expedite solubilization of residual source mass, under anaerobic conditions; and, 3) enhance dissolved-phase petroleum hydrocarbon (PHC) destruction. Site small automobile fueling and service facility from the 1950’s to 1982. Petroleum release was discovered in ...
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LNAPL At Petroleum Product Terminal - Case Study
ABSTRACT BOS 200® was injected at a refined petroleum product terminal to remediate LNAPL in groundwater. Within one year after treatment, the site received a No Further Action status. CHALLENGES The remedial goal was to eliminate the reoccurrence of light non-aqueous phase liquid (LNAPL) which persisted with no apparent pattern. Annual fluctuations in groundwater elevation were ...
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Kemijärvi pulp mill 2010 - Case Study
In 2010 Savaterra Greenfix at old pulp mill, polluted soil and water treatment. Soil and groundwater in the elevated concentrations were observed, particularly regarding to oils and VOCs. In order to save on transport costs and natural materials, thermal station was transferred to the factory site and all objects were restored during one summer. Savaterra Oy was responsible for excavation work, ...
By Savaterra Oy
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Managing environmental compliance for Consol Energy, USA case study
Project Summary: Consol Energy Inc. (NYSE: CNX) is the largest producer of high-Btu bituminous coal in the United States. ERIMS is an integral aspect of how Consol monitor, manage, and report on a complex and dynamic array of environmental measurements across multiple facilities and states, as required by various regulatory agencies. This data is massive in scale and reporting requirements are ...
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Preliminary analysis of phosphorus flow in Hue Citadel
Characteristics of waste and wastewater management can affect material flows. Our research investigates the management of waste and wastewater in urban areas of developing countries and its effects on phosphorus flow based on a case study in Hue Citadel, Hue, Vietnam. One hundred households were interviewed to gain insight into domestic waste and wastewater management together with secondary ...
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Arsenic in private drinking water wells: an assessment of jurisdictional regulations and guidelines for risk remediation in North America
Arsenic is a known carcinogen found globally in groundwater supplies due to natural geological occurrence. Levels exceeding the internationally recognized safe drinking water standard of 10 μg/L have been found in private drinking water supplies in many parts of Canada and the United States. Emerging epidemiological evidence confirms groundwater arsenic to be a significant health ...
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Ethanol Production Plant Monitors Impacts to Water Supply and Stays in Compliance
Application Under current ethanol plant configurations, water use for ethanol production ranges from 4.0 to 6.8 gallons of water required per gallon of ethanol produced. With the average new plant producing 120 million gallons of ethanol per year, water yields in excess of 1,000 gallons per minute are required; therefore adequate water supply is essential to the operation of an ethanol production ...
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Investigation on Potential Groundwater Impacts and Influence of Local Hydrogeology on Natural Attenuation of Leachate at a Municipal Landfill
The influence of local hydrogeology on natural attenuation of contaminants from landfill leachates in shallow aquifer underlying the active Olusosun landfill base in Lagos was investigated. In addition, the level of groundwater contamination in the vicinity of the landfill and of leachate migration pattern in groundwater down gradient of the landfill base was equally assessed. Landfill leachate ...
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Why it’s time to elevate groundwater
Groundwater stored in the earth’s crust underpins all our lives – the ultimate source of freshwater for billions has become victim of over-extraction and the ultimate sink for pollutants. For too long, not enough has been done to regulate the use of this precious, on-demand resource and manage disposal of waste. If rates of groundwater depletion have tripled in the past 3 decades, ...
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Evaluating Cleanup at Hamilton Army Airfield Using EQuIS and ArcGIS
The Sacramento District, US Army Corps of Engineers, is implementing EarthSoft's EQuIS and ArcGIS for better management, analysis, and response to landfill remedial activities being conducted at the former Hamilton Army Airfield. This former Air Force Base located four miles south of the city of Novato, on San Pablo Bay, in Marin County, California, is undergoing environmental clean-up as it is ...
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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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ITRC technical regulatory guidelines for passive diffusion sampling, 2004
Polyethylene diffusion bag (PDB) samplers are low-density polyethylene bags containing deionized water, used to collect water samples in groundwater wells for laboratory analyses of volatile organic compounds (VOCs). PDB samplers are passive devices, relying on the movement of groundwater from the aquifer or water-bearing zone through the screen or open interval of a well. VOCs in groundwater ...
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Lost Hill Utility District 46 Widening
Project Location: Lost Hill, California Engineer: CannonCorp Owner: CannonCorp GC: Todd Companies Project Dates: May 2018 – June 2018 ...
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NextGen GIS and the Environmental Database
Next Generation (NextGen) Geospatial Information System (GIS) and U.S. Department of Energy (DOE) Cold War legacy sites environmental records—spanning nearly 40 years—in the Environmental Database, are managed by the DOE Office of Legacy Management (LM). As key LM assets, these records must be managed and maintained efficiently and effectively. There are over 16 different applications ...
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Application of ferrates for Arsenic removal from groundwater
Ferrates are a general name for compounds of iron in a high oxidation state - Fe(IV), Fe(V) and Fe(VI), which show highly oxidizing effects and form non-toxic ferrous oxides and oxohydroxides that can act as coagulants. Laboratory tests have confirmed an interesting application potential for these compounds in the area of water treatment technologies. In 2014 an affordable technology for ...
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Dynamic factor analysis for estimating ground water arsenic trends
Received for publication March 14, 2009. Drinking ground water containing high arsenic (As) concentrations has been associated with blackfoot disease and the occurrence of cancer along the southwestern coast of Taiwan. As a result, 28 ground water observation wells were installed to monitor the ground water quality in this area. Dynamic factor analysis (DFA) is used to identify common trends that ...
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Data Requirements for Ground Water, Surface Water, and Leachate
It is common for ground water to be contaminated with the water soluble substances found in overlying soils. Many of the required data elements are similar, e.g., pH, TOC, BOD, COD, oil and grease, contaminant identification and quantification, and soil and aquifer characterization. Additional water quality monitoring data elements include hardness, ammonia, total dissolved solids, and metals ...
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Solving the Sinking of Mexico City
Can managed aquifer recharge slow the land subsidence that threatens the city’s infrastructure? Before the Aztec city of Tenochtitlán fell to the Spaniards, it was an island on flood-prone Lake Texcoco. Spain founded Mexico City on its ruins and over the centuries drained most of the lake to provide more land for growth. In the late 19th century, officials began to notice that ...
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