Hydrogeologic Consulting for Brookhaven National Lab (BNL)
PWGC was retained for various projects in support of BNL’s Environmental Directorate Management Groundwater Restoration and Protection program. These included the installation of temporary vertical profile borings, permanent monitoring wells, and recovery/extraction wells using various drilling technologies such as Geoprobe®, Hollow Stem Auger, Mud-Rotary, Reverse Circulation, and Rota-Sonic.
Sag Harbor/Peconic Estuary Sewage Treatment Compliance
Environmental consulting and engineering services tailored to the Village of Sag Harbor (Village) sewage treatment plant (STP) operations and maintenance to ensure compliance with their SPDES permit and Total Maximum Daily Load for the Peconic Estuary.
BNL Sewage Treatment Plant Upgrade
In order to comply with a New York State Department of Environmental Conservation (NYSDEC) directive to reduce concentrations of metals discharged into the Peconic River from Brookhaven National Laboratory’s (BNL) Sewage Treatment Plant (STP), the laboratory decided to upgrade the STP by adding a tertiary treatment component and re-directing the plant effluent away from the […]
BNL Stormwater Drainage Analysis
After a safety analysis of a 2012 storm event that flooded and caused extensive damage to BNL facilities, PWGC conducted hydraulic modeling and an associated evaluation of a portion of BNL’s existing stormwater drainage system. Our scope of work included field inspections to acquire the physical information necessary to construct and run a hydraulic model of […]
Neptune Regional Transmission System Compliance Management
Neptune Regional Transmission System is a 65-mile long, over and undersea and underground High Voltage Direct Current (HVDC) system that features a cable that runs from Sayreville, NJ to New Cassel, NY. It carries 660 megawatts (MW) of energy, which is enough to meet the electricity demands of about 600,000 average-sized homes. Following an extensive […]
BNL Tritium Plume Engineering Design
PWGC was contracted by Brookhaven National Laboratory (BNL) to evaluate alternatives for remediation of a tritium plume, including capital and operating cost projections. PWGC engineers also designed and provided construction oversight of the start-up of a groundwater remediation system on an urgent basis. Construction on the tritium remediation project was completed ahead of schedule, within […]
Hydrogeological Assessment for Huntington Ready Mix Concrete, Inc.
PWGC assessed the hydrogeologic conditions beneath Huntington Ready Mixed Concrete Inc. and prepared a Hydrogeologic Assessment Report. The purpose of this Hydrogeologic Assessment Report was to document the methodology and results of the assessment, as well as to serve as a supplement Huntington Ready Mixed Concrete Inc.’s application to the New York State Department of […]
Carbon Footprint Analysis for Roanoke Sand and Gravel
PWGC worked with Roanoke to develop a carbon footprint baseline of greenhouse gas emissions from current greenhouse gas-contributing business activities. Additionally, the carbon footprint of a hypothetical commercial building occupying the land in lieu of the mining facility was performed to compare the potential greenhouse gas emission impact.
GTJ Tank Upgrade & Remediation Management
PWGC upgraded petroleum storage facilities and associated fueling systems at six bus depots owned by GTJ, Inc., in order to comply with federal, state, and NYC regulations for UST and AST systems. The systems lacked overfill and corrosion protection, and/or leak detection range in capacity from single 275-gallon tanks to multiple manifold systems with combined […]
Underground Injection Control Structure Cleaning & UST Closure
NIPIDIMI BX engaged PWGC to provide closure of an underground storage tank (UST) in the Bronx, NY. PWGC performed a Phase I ESA and Phase II ESA at the site. The Phase I identified the potential presence of one 3000-gallon UST, two 275-gallon #2 fuel oil above-ground storage tanks (ASTs) and one 500-gallon AST. PWGC’s soil […]