Project Description

 

ENVIRONMENTAL BASELINE SURVEY

US ARMY RESERVE CENTER-MG BENJAMIN L. HUNTON MEMORIAL
Gaithersburg, Maryland

 

 

 

CLIENT
US Army Corps of Engineers
IMA-ARO
3848 Northeast Drive, Suite 160
College Park, GA 30337

CONTACT
Michael Dickinson
(678) 278-4024 ext. 330

PHEnv was authorized by the United States Army Reserve Command Headquarters to conduct an Environmental Baseline Survey (EBS) of the approximate 16.38 acre MG Benjamin L. Hunton Memorial U.S. Army Reserve Center (USARC) in Gaithersburg, Maryland. This EBS report was developed in onformance with the scope and limitations of: the ASTM Designation D6008-96, Standard Practice for Conducting Environmental Baseline Surveys; the ASTM Designation E1527-00, Standard Practice for Environmental Site Assessments: Phase I Environmental Site Assessment Process; ASTM Standard D5746-98 (2002), Standard Classification of Environmental Condition of Property Area Types for Defense Base Closure and Realignment Facilities, and Army Regulation 200-1, Environmental Quality, Environmental Protection and Enhancement, Chapter 15-6 (February 21, 1997, last modified March 20, 2000). The site consisted of the current USARC building and a former NIKE Launch Area. The purpose of the EBS is to obtain information necessary to classify a property into one of seven environmental condition-of-property area types.

The EBS, essentially a Federal-level Preliminary Assessment Report (PAR), consisted of a historic review of maps and aerials, review of existing environmental investigations and a comparison of relevant soils and groundwater data with Maryland Department of the Environment (MDE) cleanup criteria, a pedestrian survey with photo-documentation, interviews with key personnel, a search of State and Federal environmental databases, and the identification of Areas of Concern (AOCs).

In accordance with ASTM Designation D5746-98 (2002), Standard Classification of Environmental Condition of Property Area Types for Defense Base Closure and Realignment Facilities, the Army Reserve Center has been classified as Type 3, an area or parcel of real property where release, disposal, or migration, or some combination thereof, of hazardous substances has occurred, but at concentrations that do not require a removal or remedial action.

This classification was selected due to the presence of metals (aluminum, arsenic, chromium, iron, manganese, thallium and vanadium) in soil samples above MDE residential standards, as well as the presence of manganese in one groundwater sample above the MDE guideline but below the EPA guideline. No remedial action with regard to the presence of these compounds is required, since MDE standards for industrial properties, which are the governing cleanup standards for the Site, were not exceeded.