NEVADA DIVISION OF WATER PLANNING

Abbreviations and Acronyms

The following terms are included in this dictionary or are related to this material. Greek letters and other special symbols are alphabetically listed according to their Greek name and are presented at the end of each letter listing. Where two acronyms have different meanings, generally the more frequently used one will be listed first. Alternate Concentration Limits ACLs ACEC Area of Critical Environmental Concern AF Acre-Feet (or Acre-Foot) AFY Acre-Feet per Year AGP Algal Growth Potential AMC Antecedent Moisture Condition AMD Acid Mine Drainage ANC Acid Neutralizing Capacity API Antecedent Precipitation Index APWA American Public Works Association ARARs Applicable, Relevant, or Appropriate Requirements ARMA AutoRegressive Moving Average ARS Agricultural Restructuring Scenario ASC Atmospheric Sciences Center (DRI) ASCE American Society of Civil Engineers ASOS Automated Surface Observing Systems (NWS/NOAA) ATP Adenosine Triphosphate ATU Aerobic Treatment Unit AUM Animal Unit Month AW Applied Water AWC Available Water Content AWT Advanced Wastewater Treatment AWWA American Water Works Association BAC BADT BAT B.P. BCF BCP BCT BFE BGS BIA BLM BMP BOD BOD5 BOR BP B.P. BPI BPT BSC Biological Activated Carbon [Process] Best Available Demonstrated Technology Best Available Technology [Economically Achievable] Before Present Bioconcentration Factor Bioconcentration Potential Best [Conventional] Control Technology Base Flood Elevation (FEMA) Balanced Groundwater Scenario Bureau of Indian Affairs (USDI) Bureau of Land Management (USDI) Best Management Practice [Urban Water Use] Biochemical Oxygen Demand/Biological Oxygen Demand Biological Oxygen Demand5 Days (U.S.) Bureau of Reclamation (USDI) Barometric Pressure Before Present (Time) Bureau of Plant Industry [Evaporation Pan] (USDA) Best Practicable Control Technology Biological Sciences Center (DRI)

WATER WORDS DICTIONARY

Abbreviations and Acronyms

Water Words Dictionary

BTU BWPC BWQP BWR C CAA CAPA CBRA CBRS CCE CDI CEC CEQA CERCLA CERES CFCs CF CFR CFS (cfs) CFSM CIR CLR CLOMR CMI COI COD COD CORPs CP CPI CSO CSS CVP CWA CZMA DBH DBPs DCNR D/DBP DEIS DEP DNAPLs DO DOC DOF DOW DDT DRI DU DW DWR DWR British Thermal Unit Bureau of Water Pollution Control (NDEP/DCNR) Bureau of Water Quality Planning (NDEP/DCNR) Boiling Water Reactor

DIVISION OF WATER PLANNING

Celsius (Centigrade Temperature Scale) Clean Air Act (EPA) Critical Aquifer Protection Area (SDWA) Coastal Barrier Resources Act of 1982 (FEMA) Coastal Barrier Resources System (FEMA) Carbon-Chloroform Extract Capacitive Deionization Cation Exchange Capacity California Environmental Quality Act Comprehensive Environmental Response, Compensation, and Liability Act (EPA) California Environmental Resources Evaluation System Chlorofluorocarbons Cubic Feet (or Foot) Code of Federal Regulations Cubic Feet per Second Cubic Feet per Second per Square Mile Consumptive Irrigation Requirement/Crop Irrigation Requirement Classical Linear Regression [Model] Conditional Letter of Map Revision (FEMA) Crop Moisture Index Cone of Influence Chemical Oxygen Demand Cone of Depression U.S. Army Corps of Engineers (also USACE) Cultural Practices Consumer Price Index Combined Sewer Overflow Combined Sewer System Central Valley Project (State of California) Clean Water Act (EPA) Coastal Zone Management Act Diameter at Breast Height Disinfection By-Products Department of Conservation and Natural Resources (State of Nevada) Disinfectant and Disinfection By-Product Rule (EPA) Draft Environmental Impact Statement (NEPA/EPA) Division of Environmental Protection (DCNR) Denser (than water) Non-Aqueous-Phase Liquids Dissolved Oxygen Dissolved Organic Carbon Division of Forestry (DCNR) Division of Wildlife (DCNR) Dichlorodiphenyltrichloroethane Desert Research Institute (University of Nevada System, State of Nevada) Distribution Uniformity Distilled Water Division of Water Resources (DCNR) Department of Water Resources (The Resources Agency, State of California) Abbreviations and Acronyms

DIVISION OF WATER PLANNING

Water Words Dictionary

DWP EA EA EC EDF EDI EDR EEEC EIS ENSO EPA EPAct ESA ESWTR ET ETAW ETR EWMP 0 F FBFM FEMA FERC FHBM FIA FIFRA FIRM FIS FLMPA FOE FONSI FPE FS FSA FTE FWS GAC GACT GC GC/FID GC/MS GCMs GD GDP GED GFD G.H. GID GIS GMW GPC

Division of Water Planning (DCNR, also NDWP) Environmental Assessment (NEPA) Endangerment Assessment (EPA) Electrical Conductivity/Electroconductivity Environmental Defense Fund Equal Discharge Increment Electrodialysis Reversal Energy and Environmental Engineering Center (DRI) Environmental Impact Statement (NEPA/EPA) El Nio/Southern Oscillation [U.S.] Environmental Protection Agency (National) Energy Policy Act Endangered Species Act (USFWS) Enhanced Surface Water Treatment Rule (EPA) Evapotranspiration Evapotranspiration of Applied Water Equal Transit Rate Efficient Water Management Practice [Agricultural Water Use] Viscosity [eta] Fahrenheit (Temperature Scale) Flood Boundary Floodway Map (FEMA) Federal Emergency Management Agency Federal Energy Regulatory Commission Flood Hazard Boundary Map (FEMA) Federal Insurance Administration (FEMA) Federal Insecticide, Fungicide, and Rodenticide Act (EPA) Flood Insurance Rate Map (FEMA) Flood Insurance Study (FEMA)

Federal Land Management and Policy Act

Friends of the Earth Finding of No Significant Impact (NEPA) Flood Protection Elevation (FEMA) Feasibility Study (EPA) Food Security Act (USDA) Full Time Equivalent (Employment) Free Water Surface

Granular Activated Carbon Granular Activated Carbon Treatment Gas Chromatography Gas Chromatography/Flame Ionization Detector Gas Chromatography/Mass Spectrometer General Circulation Models Geologic Division (USGS) Gross Domestic Product Gallon per Employee per Day Gallons per Square Foot [of membrane] per Day Gage Height (USGS) General Improvement District Geographic Information System Gram Molecular Weight Gallons per Capita (Person)

Abbreviations and Acronyms

Water Words Dictionary

GPCD GPD GPED GPS GSA GWH (d (s HGL HCP HRS HSA HT HW HWM i ICR I.E. IOWE IRP JTU K K Kd k KGAL KGRA KW KWH LA LC50 LCA LCT LD50 LI LN LNAPLs LOMA LOMR LR lsd LTAR LVEA LW LWM LWR 7 MAF Gallons per Capita per Day Gallons per Day Gallons per Employee per Day Global Positioning System [Federal] General Services Administration Gigawatt-Hour Dry Adiabatic Lapse Rate [gamma] Wet (Saturated) Adiabatic Lapse Rate [gamma] Hydraulic Grade Line Habitat Conservation Plan (EPA) Hazardous Ranking System (EPA) Hydrologic Study Area (DWR, State of California) High Tide High Water High Water Mark

DIVISION OF WATER PLANNING

Hydraulic Gradient Information Collection Rule (EPA) Irrigation Efficiency International Office for Water Education (Utah State University) Integrated Resource Planning Jackson Turbidity Unit Hydraulic Conductivity Kelvin (temperature scale) Soil Sorption Coefficient Kinetic Energy Kilogallons (thousand gallons) Known Geothermal Resource Area Kilowatt Kilowatt-Hour Load Allocation Lethal Concentration50 (percent) Life Cycle Assessment Lahontan Cutthroat Trout (USFWS) Lethal Dose50 (percent) Langelier Index Natural Logarithm Lighter (than water) Non-Aqueous-Phase Liquids Letter of Map Amendment (FEMA) Letter of Map Revision (FEMA) Leaching Requirement Land Surface Datum Long Term Acceptance Rate [of Soils] Lahontan Valley Environmental Alliance Low Water Low Water Mark Light Water Reactor Scavenging Coefficient [lambda] Million Acre-Feet Abbreviations and Acronyms

DIVISION OF WATER PLANNING

Water Words Dictionary

M&I MATC MBAS MCL MCLG MEQ/L MGD MG/L (mg/l) MHW MIS MLSS MLVSS MLW MP MPA MPN MPRSA MS MSL MTBE MW MYA NAPLs NASQAN NBMG NCP NCWS NDEP NDEPS NDOW NDSP NDT NDWP NDWR N.E.C. NEPA NESDIS NEXRAD NFIP NFS NGVD NHP NIDS NIFC NIPDWR NM NMD NMFS NOAA NOHSCP NOS NOW

Municipal and Industrial Maximum Acceptable Toxicant Concentration Methylene Blue Active Substance Maximum Contaminant Level (EPA) Maximum Contaminant Level Goal (EPA) Milliequivalents per Liter Million Gallons per Day Milligrams per Liter Mean High Water Management Indicator Species Mixed Liquor Suspended Solids Mixed Liquor Volatile Suspended Solids Mean Low Water Measuring Point Microscopic Particulate Analysis Most Probable Number Marine Protection, Research, and Sanctuaries Act (EPA) Mass Spectrometry [Elevation above] Mean Sea Level Methyl Tertiary Butyl Ether Megawatt (one million watts) Million Years Ago Micron (one-millionth of a meter) [mu] Non-Aqueous-Phase Liquids National Stream Quality Accounting Network (USGS) Nevada Bureau of Mines and Geology National Contingency Plan (EPA) Non-Community Water System Nevada Division of Environmental Protection (DCNR) National Pollutant Discharge Elimination System (EPA) Nevada Division of Wildlife (DCNR) Nevada Division of State Parks (DCNR) Nondestructive Testing Nevada Division of Water Planning (DCNR) Nevada Division of Water Resources (State Engineers Office, DCNR) Not Elsewhere Classified (SIC Codes) National Environmental Policy Act (EPA) National Environmental Satellite, Data and Information Service (NOAA) Doppler Radar Data System (NWS/NOAA) National Flood Insurance Program (FEMA) National Forest Service (USDA) National Geodetic Vertical Datum [Nevada] Natural Heritage Program (DCNR) NEXRAD Information Dissemination Service (NWS/NOAA) National Interagency Fire Center (BLM) National Interim Primary Drinking Water Regulations Nautical Mile National Mapping Division (USGS) National Marine Fisheries Service (NOAA) National Oceanic and Atmospheric Administration (U.S. Department of Commerce) National Oil and Hazardous Substances Contingency Plan (EPA) National Ocean Service (NOAA) Nonhazardous Oil Field Waste (EPA)

Abbreviations and Acronyms

Water Words Dictionary

NOx NPDES NPDWR NPL NPS NPS NRC NRC NRCS NRDC NRP NRP NRT NSDWR NSF NSPS NTU NVS NVSS NWIC NWPA NWR NWS O&M OC OCAP OFA OLS OM&R OSM OTEC PAHs PAMs PCBs PCE PCNs PCWCD PDC PDSI PE pH PHS PIA P.L. PLSS PMF PNAs POC POE POM POSW POTW

DIVISION OF WATER PLANNING

Oxides of Nitrogen National Pollutant Discharge Elimination System (NDEP/EPA) National Primary Drinking Water Regulations (SDWA/EPA) National Priorities List [Superfund List] (EPA) Non-Point Source [Pollution] National Park Service (USDI) National Research Council National Response Center (U.S. Coast Guard) Natural Resources Conservation Service (USDA) Natural Resources Defense Council (private environmental organization) Natural Resources Plan (DCNR) National Research Program [Centers] (WRD/USGS) National Response Team (EPA) National Secondary Drinking Water Regulations National Strike Force (U.S. Coast Guard) New Source Performance Standards (EPA) Nephelometric Turbidity Unit Non-Volatile Solids Non-Volatile Suspended Solids National Water Information Clearinghouse (USGS) Newlands Water Protective Association National Wildlife Refuge [System] (USFWS) National Weather Service (NOAA) Operations and Maintenance Organic Carbon Operating Criteria and Procedures (TCID/USBR) Other Federal Agencies [Program] (WRD/USGS) Ordinary Least Squares (statistics) Operations, Maintenance, and Replacement Office of Surface Mining Reclamation and Enforcement (Bureau of Mines/USDI) Ocean Thermal Energy Conversion Polycyclic Aromatic Hydrocarbons, or Polararomatic Hydrocarbons Polyacrylamides Polychlorinated Biphenyls Perchloroethylene Polychlorinated Naphthalenes Pershing County Water Conservation District [Nevada] Project Dependable Capacity Palmer Drought Severity Index Population Equivalent Hydrogen Ion Concentration [Potential of Hydrogen] Public Health Service Practicably Irrigable Acreage Public Law Public Land Survey System Probable Maximum Flood (FEMA) Polynuclear Aromatic Hydrocarbons Point of Compliance Point-of-Entry [Treatment Device] Particulate Organic Matter Privately-Owned Stored Water Publicly-Owned Treatment Works Abbreviations and Acronyms

DIVISION OF WATER PLANNING

Water Words Dictionary

POU PPB PPM PPT PRP PS PSA PSP PWR PWS PWSS PWSSP M Q QBO QPF QSC R R R2 RBC RCRA RDI Re/U U RFD RI RI/FS RMCL RMHQs RMP ROE RRT RSC RVD 7Q10 S.A. SAB SAE SAR SAS SAS SB SBR SCS SDI SDWA SF SFHA SFIP SG SHR

Point-of-Use [Treatment Device] Parts per Billion Parts per Million Parts per Thousand Potentially Responsible Party (EPA) Point Source [Pollution] Primary Settlement Agreement Paralytic Shellfish Poisoning Pressurized Water Reactor Public Water System/Public Water Supply Public Water Supply System Public Water System Supervision Program Infiltration Index [phi] Volumetric Flow Rate (Venturi Effect) Quasi-Biennial Oscillation (ENSO) Quantitative Precipitation Forecast Quaternary Sciences Center (DRI) Raumur (or Reaumur) Thermometer Scale Correlation Coefficient Coefficient of Determination Rotating Biological Contractor Resource Conservation and Recovery Act (EPA) Reclamation Drought Index Reynolds Number
Regulatory Flood Datum (FEMA)

Remedial Investigation (EPA) Remedial Investigation/Feasibility Study (EPA) Recommended Maximum Containment Level Requirements to Maintain Existing Higher Quality (NDEP/DCNR) Resource Management Plan (BLM) Residue on Evaporation Regional Response Team (EPA/U.S. Coast Guard) Residual Sodium Carbonate Recreation Visitor Day Seven-Day 10-Year Low Flow Seasonally Adjusted Science Advisory Board (EPA) Seasonal Application Efficiency Sodium Adsorption Ratio Soil Absorption System Solar Aquatic Systems Sedimentation Basin Sequencing Batch Reactors Soil Conservation Service (now NRCS) Stand Density Index Safe Drinking Water Act (EPA) Subsurface Flow Special Flood Hazard Area (FEMA) Standard Flood Insurance Policy (FEMA) Specific Gravity Significant Hydrologic Resources

Abbreviations and Acronyms

Water Words Dictionary

SI SIC SLPA SMCL SMZ SNOTEL SOC SOC SOD SP GR SP HT SPCCP SPF SPI SRP SS SSA SSTA STE ST-SAS SV SVI SWAP SWCS SWE SWP SWPP SWRCB SWSI SWTR F F2 TC TCID TCLP TDEM TDS TES TES THMs ThOD TIC TIN TIP TKN TMDL TNC TOC TON TOT TROA TRPA TS

DIVISION OF WATER PLANNING

[Le] Systme International [dUnits] (Metric System) Standard Industrial Classification [Code] Sea Level Pressure Anomaly (ENSO) Secondary Maximum Contaminant Level (EPA) Streamside Management Zone (USFWS) Snowpact Telemetry (NRCS) Suspended Organic Carbon Synthetic Organic Chemical Sediment Oxygen Demand Specific Gravity Specific Heat Spill Prevention Control and Countermeasures Plan (CWA) Standard Project Flood Standardized Precipitation Index Soluble Reactive Phosphate Suspended Solids Sole Source Aquifer Sea Surface Temperature Anomaly (ENSO) Septic Tank Effluent Septic Tank Soil Absorption System Sludge Volume Sludge Volume Index Source Water Protection Program (EPA) Soil and Water Conservation Society Snow Water Equivalent State Water Project (State of California) Source Water Protection Program (EPA) State Water Resources Control Board (DWR/State of California) Surface Water Supply Index Surface Water Treatment Rule (SDWA) Standard Deviation [sigma] Variance [sigma squared] Total Carbon TruckeeCarson Irrigation District [Nevada] Toxicity Characteristic Leaching Procedure (EPA) Time-Domain Electromagnetics Total Dissolved Solids Threatened, Endangered or Sensitive Species (USFWS) Terrestrial Ecosystem Survey Trihalomethanes Theoretical Oxygen Demand Total Inorganic Carbon Total Inorganic Nitrogen Total Inorganic Phosphate Total Kjeldahl Nitrogen Total Maximum Daily Load (EPA) The Nature Conservancy Total Organic Carbon Threshold Odor Number Time of Travel Truckee River Operating Agreement [California and Nevada] [Lake] Tahoe Regional Planning Agency [California and Nevada] Total Solids Abbreviations and Acronyms

DIVISION OF WATER PLANNING

Water Words Dictionary

TSCA TSI TSI TSS TTHMs TVA J UDI UIC UMTRCA USACE USBR USDA USDI USDW USFS USFWS USGS USRS UV VOC VOCs VRM WAVE WCWCD WDV WET Wh WHPA WLA WMA WPA WRC WRD WRID WSA ZID ZOC ZOI ZOT ZWA

Toxic Substances Control Act (EPA) [Carlsons] Trophic State Index [Mean] Trophic State Index Total Suspended Solids Total Trihalomethanes Tennessee Valley Authority Coefficient of Transmissivity [tau] [Ground Water] Under the Direct Influence [of Surface Water] Underground Injection Control Uranium Mill Tailings Radiation Control Act (EPA) U.S. Army Corps of Engineers (also Corps) U.S. Bureau of Reclamation (USDI) U.S. Department of Agriculture U.S. Department of the Interior Underground Source of Drinking Water U.S. Forest Service (USDA) U.S. Fish and Wildlife Service (USDI) U.S. Geological Survey (USDI) U.S. Reclamation Service (now USBR) Ultraviolet Radiation Volatile Organic Carbon Volatile Organic Chemicals Visual Resource Management Water Alliances for Voluntary Efficiency (EPA) Washoe County Water Conservation District [Nevada] Water Dilution Volume Water Education for Teachers Watt-Hour Wellhead Protection Area Wasteload Allocation Wildlife Management Area (NDOW/DCNR) Watershed Protection Approach (EPA) Water Resources Center (DRI) Water Resources Division (USGS) Walker River Irrigation District [Nevada] Wilderness Study Area Zone of Initial Dilution Zone of Contribution Zone of Influence Zone of Transport Zonal Wind Anomaly (ENSO)

Abbreviations and Acronyms