7Q10 10-year, 7-day minimum flow

AMSA American Metropolitan Sewerage Association

ARC Atlanta Regional Commission (Georgia)

ASIWPCA Association of State and Interstate Water Pollution Control Administration

AWT Advanced wastewater treatment

BOD Biochemical oxygen demand

BOD5 5-day biochemical oxygen demand

BODu Ultimate biochemical oxygen demand

C:DW Carbon-to-dry weight ratio

CBOD Carbonaceous biochemical oxygen demand

CCMUA Camden County Municipal Utility Authority (New Jersey)

CMSA Combined Metropolitan Statistical Area

CSO Combined sewer overflow

CTDEP Connecticut Department of Environmental Protection

CU Catalog unit

CWA Clean Water Act

CWNS Clean Water Needs Survey

CWSRF Clean Water State Revolving Fund

DDT 2, 2-bis (p-chlorophenyl)-1,1,1-trichlorethane

DECS Delaware Estuary Comprehensive Study

DEL USA Delaware Estuary Use Attainability Study

DEM Dynamic Estuary Model

DNR Department of Natural Resources (Georgia)

DMR Discharge monitoring report

DO Dissolved oxygen

DRBC Delaware River Basin Commission

EPD Environmental Protection Division (Georgia)

FR Federal Register

FWPCA Federal Water Pollution Control Act/Administration FWQA Federal Water Quality Administration

FY Fiscal year

GAO General Accounting Office

GICS Grants Information and Control System gpcd Gallons per capita per day

HEP Harbor Estuary Program (NY, NJ)

HUC Hydrologic unit code

IBI Index of Biotic Integrity

ICPRB Interstate Commission on Potomac River Basin IFD Industrial Facilities Discharge File

INCODEL Interstate Commission on the Delaware River Basin (NJ, DE, PA)

ISC Interstate Sanitation Commission (NJ, NY, CT)

JEM James Estuary Model

JMSRV James River Model

LTI Limno-Tech, Inc. (Ann Arbor, Michigan)

MCES Metropolitan Council Environmental Services (Minneapolis-St. Paul, MN)

mgd Million gallons per day

MPCA Minnesota Pollution Control Agency

MPN Most probable number

MRPA Metropolitan River Protection Act (Georgia)

MSA Metropolitan Statistical Area

MSX Parasitic protozoan (Haplosporidium nelsoni) responsible for massive oyster mortalities in Delaware Bay and Chesapeake Bay; MSX is popular name for the disease mt/day Metric tons per day (1,000 kg per day) MUA Municipal Utility Authority

MWCC Metropolitan Waste Control Commission (Minneapolis-St. Paul, MN) MWCOG Metropolitan Washington Council of Governments N Nitrogen

NAS National Academy of Sciences

NBOD Nitrogenous biochemical oxygen demand

NCWQ National Commission on Water Quality

NH3— N Ammonia nitrogen

NO2— N Nitrite nitrogen

NO3— N Nitrate nitrogen

NOAA National Oceanic and Atmospheric Administration NPDES National Pollutant Discharge Elimination System NPS Nonpoint source; also National Park Service NRC National Research Council NRDC Natural Resources Defense Council

NURP National Urban Runoff Project

NWPCAM National Water Pollution Control Assessment Model NWRI National Water Research Institute

NYCDEP New York City Department of Environmental Protection O Oxygen

O&M Operation and maintenance

ODEQ Oregon Department of Environmental Quality

OMB Office of Management and Budget

ORSANCO Ohio River Valley Sanitation Commission

OTA Office of Technology Assessment

OWM USEPA Office of Wastewater Management

P Phosphorus

PAH Polynuclear aromatic hydrocarbons PCB Polychlorinated biphenyls PCS Permit Compliance System PE Population equivalent PEM Potomac Eutrophication Model PL Public Law

PMSA Primary Metropolitan Statistical Area

PO4- P Phosphate phosphorus

POC Particulate organic carbon

POM Particulate organic matter

POTW Publicly owned treatment works ppm parts per million (concentration)

ppt parts per thousand (concentration)

QA/QC Quality assurance/quality control

RF1 Reach File Version 1

RF3 Reach File Version 3

SAV Submersed aquatic vegetation

SIC Standard Industrial Classification

SRP Soluble reactive phosphorus

STORET USEPA's STOrage and RETrieval database

SWCB State Water Control Board (Virginia)

SWEM System Wide Eutrophication Model (New York Harbor)

TKN Total Kjeldahl nitrogen

TMDL Total maximum daily load

TN Total nitrogen

TOC Total organic carbon

TP Total phosphorus

TPC Typical pollutant concentration

TSS Total suspended solids

UM Upper Mississippi River milepoint measured from confluence of Ohio River and Upper Mississippi River USCOE U.S. Army Corps of Engineers USCB U.S. Census Bureau USDA U.S. Department of Agriculture USDOC U.S. Department of Commerce USDOI U.S. Department of Interior USEPA U.S. Environmental Protection Agency USGS U.S. Geological Survey USPHS U.S. Public Health Service VIMS Virginia Institute of Marine Science WEF Water Environment Federation WIN Water Infrastructure Network WPCF Water Pollution Control Federation WQS Water Quality Standard

WRBWQS Willamette River Basin Water Quality Study WRE Water Resources Engineers (Walnut Creek, California)

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