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Maryland Water Science Center

Long-Term Ground-Water Monitoring Program and Performance-Evaluation Plan for the Extraction System at the Former Nike Missile Battery Site, Aberdeen Proving Ground, Maryland

U.S. Geological Survey Open-File Report 00-208

By Michael P. Senus and Frederick J. Tenbus

This report is available as a pdf.


Abstract

This report presents a long-term ground-water monitoring program and ground-water extraction system performance monitoring and evaluation program developed by the U.S. Geological Survey during 1999–2000 in support of the remedial action conducted at the Former Nike Missile Battery Site (Nike Site), Edgewood Area, Aberdeen Proving Ground, Maryland. Concentrations of trichloroethene at the Nike Site ranged from below the Maximum Contaminant Level of 5 micrograms per liter to 299 micrograms per liter during the Remedial Investigation under the Comprehensive Environmental Response, Compensation, and Liability Act program. The long-term monitoring program utilizes six selected monitoring wells that surround a trichloroethene contaminant plume. These wells will be monitored for five years and then reviewed by Federal and State regulators to determine whether future monitoring will be required. The performance assessment plan was formulated from existing data and interpretations provided by the Remedial Investigation/Feasibility Study process and the 100% Remedial Design of the extraction-treatment system. A performance evaluation of the Nike Site extraction system partially fulfills the remedial action requirement to monitor ground water as stipulated in the September 1996 Record of Decision. Eight extraction wells that can pump up to 60 gallons per minute will be closely monitored and evaluated to determine capture and treatment of the trichloroethene plume at the Nike Site. Water-level and water-quality data will be reviewed and analyzed to determine program cost-effectiveness and on-site ground-water extraction system performance. Tools such as the U.S. Army Corps of Engineers Waterways Experiment Station ground-water-flow model can be used to help run the system efficiently while maintaining hydraulic control of the contaminant plume.

TABLE OF CONTENTS

Abstract

Introduction

Purpose and scope

Site history

Previous work

Description of study area

Geologic setting

Hydrogeologic setting

Ground water

Surface water

Water use

Climate and precipitation

Extent of contamination

Environmental receptors

Remedial Action at the Nike Site

Permit and monitoring requirements

Acknowledgments

Long-term monitoring program for the Nike Site

Long-term monitoring objectives

Frequency and location of sampling

Quality-assurance and quality-control procedures

Measurement of water levels

Sampling for trichloroethene and diffusion sampling

Ground-water-flow modeling

Performance-evaluation plan for the Nike Site ground-water extraction system

Data-Quality Objectives

Tasks

Ground-water extraction system optimization and evaluation

Treatment system sampling and analysis

Description of decision points

Decision matrix for optimizing extraction system

Decision matrix for determining system shutdown

Summary

Selected references


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For more information about USGS activities in Maryland, Delaware and the District of Columbia contact:

 

Director
MD-DE-DC Water Science Center
U.S. Geological Survey
8987 Yellow Brick Road
Baltimore, MD 21237
Telephone: (410) 238-4200
Fax: (410) 238-4210

 

or access the USGS Water Resources of Maryland, Delaware, and District of Columbia home page at:  http://md.water.usgs.gov/.


 

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Last modified: Wednesday, December 07 2016, 06:11:41 PM
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