AEC

U.S. Army Environmental Center

AFCEE

Air Force Center for Environmental Excellence

AMC

Air Mobility Command

AOC

Area of concern

ASTM

American Standards for Testing and Materials

bgs

Below ground surface

BS

Bexar Shale

Ca⁺²

Calcium

CC

Cow Creek Formation

CD

Compact disc

CERCLA

Comprehensive Environmental Response, Compensation, and Liability Act

CFR

Code of Federal Regulations

Cl^-

Chloride

CME

Central Mine Equipment

CO₂

Carbon dioxide

CO₃^-2

Carbonate

CSM

Conceptual site model

CSSA

Camp Stanley Storage Activity

DCE

Dichloroethene

DO

Delivery order

EPA

U.S. Environmental Protection Agency

ft/sec

Feet per second

GAC

Granular activated carbon

GPI

GeoProjects International

gpm

Gallons per minute

GPS

Global positioning system

HCO₃^-

Bicarbonate

HX

Core barrel with outside diameter of 4.25 inches

IDW

Investigation-derived waste

K

Hydraulic conductivity

K⁺

Potassium

LGR

Lower Glen Rose

MCL

Maximum contaminant level

MDL

Method detection limit

MEK

Methyl ethyl ketone (or 2-butanone)

MFSP

Model Field Sampling Plan

Mg⁺²

Magnesium

MOL

Master Orientation Line

MSL

Mean sea level

MW

Monitoring well

NA

Not analyzed

Na⁺

Sodium

NAD

North American Datum

NG

Natural ground

NTU

Nephelometric turbidity unit

NVGD

National Vertical Geodetic Datum

NX

Core barrel with outside diameter of 3 inches

OD

Outside diameter

PCE

Tetrachloroethene

PID

Photoionization Detector

PPE

Personal protective equipment

psi

Pounds per square inch

PVC

Polyvinyl chloride

Q

Flowrate

RCRA

Resource Conservation and Recovery Act

RL

Reporting limit

RL83

Contract F11623-94-D-0024, Delivery Order RL83

SAP

Sampling and Analysis Plan

SDWA

Safe Drinking Water Act

SO₄^-2

Sulfate

SOW

Statement of work

SP

Spontaneous potential

SWMU

Solid waste management unit

TCE

Trichloroethene

TCEQ

Texas Commission on Environmental Quality

TDH

Texas Department of Health

TDS

Total dissolved solids

TIC

Tentatively identified compound

TNRCC

Texas Natural Resource Conservation Commission (now known as TCEQ)

TPDES

Texas Pollutant Discharge Elimination System

TSS

Total suspended solids

�g/L

Microgram per liter

UGR

Upper Glen Rose

UTM

Universal Transverse Mercator

UTSA

University of Texas at San Antonio

VOC

Volatile organic compound