ECA

Hydrogeology





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Environmental Compliance Services by ECA

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ECA offers groundwater monitoring well installation and other hydrogeological services.

CLIENT: Port of Benton
PROJECT: Groundwater Monitoring Wells Installation
LOCATION: Prosser, Washington

PROJECT DESCRIPTION: Designed and supervised the installation of groundwater monitoring wells, to augment existing network of wells, for purposes of post-remediation monitoring pertinent to Washington Department of Ecology Agreed Order.

CLIENT: North Central Arkansas Landfill Authority
PROJECT: Hydrogeological Investigation
LOCATION: Clinton, Arkansas

PROJECT DESCRIPTION: Was the sole author and performer of the hydrogeological component of an extensive Hydrogeological / Geotechnical Investigation regarding a proposed municipal solid waste landfill (MSWLF) site in Clinton, Arkansas. Supervised the installation of a groundwater monitoring network of deep and shallow nested wells and performed slug tests to quantify groundwater movement through the shallow, unconfined, fractured, sandstone aquifer.  Correlated well-log and surface outcrop data, to create plausible cross-sectional displays to characterize the geologic and hydrogeologic framework of the site.  Several years later, was the designated Expert Witness pertaining to the hydrogeological aspects of the study, with all work deemed accurate and professional.

CLIENT: Arkansas Recyclable Waste, Inc.
PROJECT:
Hydrogeological Investigation
LOCATION: Wynne, Arkansas

PROJECT DESCRIPTION: Designed and supervised the installation of groundwater monitoring wells along the perimeter of a proposed MSWLF site. Temporary piezometers were utilized to ascertain groundwater flow direction and enabled the determination of upgradient and downgradient wells. Analyzed soil-boring and geophysical data and prepared a hydrogeological and geotechnical report. Prepared a preliminary engineering design, and discussed such with the Solid Waste Division of the Arkansas Department of Pollution Control & Ecology (ADPC&E, the State regulatory agency - now ADEQ), in order to minimize regulatory deficiencies in the submitted permit application package.

CLIENT: Ceda Pine Veneer
PROJECT: Installation of Groundwater Monitoring Wells
LOCATION: Samuels, Idaho

PROJECT DESCRIPTION: Supervised the drilling and installation of groundwater monitoring wells along the perimeter of a proposed inert landfilling area. Performed geologic logging of borings, measured stabilized groundwater surface, and prepared final groundwater flow map.

CLIENT: International Paper Company
PROJECT:
Installation of Recovery Wells
LOCATION: Bastrop, Louisiana

PROJECT DESCRIPTION: Coordinated all field activities and supervised the installation of four deep (100 feet) 4-inch PVC/stainless-steel recovery wells. Wells were installed in very loose sands, but were nonetheless successfully set at desired depths and constructed as per the specifications of the Louisiana Department of Environmental Quality (LDEQ), the State regulatory agency. All wells were properly developed and produced as anticipated.

CLIENT: Ethyl Corporation
PROJECT:
Installation of Groundwater Monitoring Wells
LOCATION: Ethyl Brine Plant - Magnolia, Arkansas

PROJECT DESCRIPTION: Supervised the installation of groundwater monitoring wells along the perimeter of Ethyl's pond solids vault #2. These wells were "nested" with previously installed wells, to enable the client to sample groundwater along the top and bottom of the subsurface aquifer, in order to detect the presence of low-density contaminants (floaters) and/or high-density contaminants (sinkers), respectively.

Also supervised (at another time) the installation of monitoring wells along the perimeter of Ethyl's south landfill. This project also provided the client with stratigraphic information, to assist in the installation of a leachate interceptor system along the landfill perimeter.

CLIENT: BASF Chemical Corporation
PROJECT: Installation of Groundwater Monitoring Wells
LOCATION: Geismar, Louisiana

PROJECT DESCRIPTION: Performed geologic (soils) logging of deep borings, collected soil and groundwater samples, and supervised the installation of deep triple-cased 4-inch stainless-steel monitoring wells at locations along predicted edges of monochlorobenzene (MCB) and ethylenedichloride (EDC) contaminant plumes. Performed all sampling and chain-of-custody procedures as required by LDEQ.

CLIENT: Georgia Pacific Paper Company
PROJECT:
Installation of Groundwater Monitoring Wells
LOCATION: Monticello, Mississippi

PROJECT DESCRIPTION: Supervised the installation of groundwater monitoring wells at strategic locations within the paper mill facility. Performed soil-logging and collected soil samples to determine the vertical extent of contaminants. Performed sample collection and chain-of-custody procedures as required by the Mississippi State Bureau of Pollution Control, the State regulatory agency. Closely supervised the drilling crew to ensure the safety and protection of their health.

CLIENT: OrganiGro, Inc.
PROJECT:
Installation of Groundwater Monitoring Wells
LOCATION: Russellville, Arkansas

PROJECT DESCRIPTION: Supervised the installation of groundwater monitoring wells at strategic locations within the Carden Bottoms land-ownership area. Although no contamination was not previously detected, the client wished to establish background groundwater quality for the area.

CLIENTS: Craighead County Solid Waste Management Authority
PROJECT:
Preparation of Site Specific Groundwater Sampling and Analysis Plans (SAPs)
LOCATION: Jonesboro, Arkansas

PROJECT DESCRIPTION: Prepared site-specific groundwater monitoring SAPs that met or exceeded all RCRA Subtitle D (subpart E) criteria. Approved by ADPC&E (ADEQ)

 

Environmental Compliance Associates, LLC
ECA Geophysics


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