WATER WORDS DICTIONARY Abbreviations and …

1 Abbreviations and Acronyms1 NEVADA DIVISION OF WATER PLANNINGWATER WORDS DICTIONARYA bbreviations and AcronymsThe following terms are included in this DICTIONARY or are related to this material. Greek letters and otherspecial symbols are alphabetically listed according to their Greek name and are presented at the end of eachletter listing. Where two acronyms have different meanings, generally the more frequently used one willbe listed Concentration LimitsACECArea of Critical Environmental ConcernAFAcre-Feet (or Acre-Foot)AFYAcre-Feet per YearAGPA lgal Growth PotentialAMCA ntecedent Moisture ConditionAMDAcid Mine DrainageANCAcid Neutralizing CapacityAPIA ntecedent Precipitation IndexAPWAA merican Public Works AssociationARARsApplicable, Relevant, or Appropriate RequirementsARMAAutoRegressive Moving AverageARSA gricultural Restructuring ScenarioASCA tmospheric Sciences Center (DRI)ASCEA merican Society of Civil EngineersASOSA utomated Surface Observing Systems (NWS/NOAA)

2 ATPA denosine TriphosphateATUA erobic Treatment UnitAUMA nimal Unit MonthAWApplied WaterAWCA vailable WATER ContentAWTA dvanced Wastewater TreatmentAWWAA merican WATER Works AssociationBACB iological Activated Carbon [Process]BADTBest Available Demonstrated TechnologyBATBest Available Technology [Economically Achievable] PresentBCFB ioconcentration FactorBCPB ioconcentration PotentialBCTBest [Conventional] Control TechnologyBFEBase Flood Elevation (FEMA)BGSB alanced Groundwater ScenarioBIAB ureau of Indian Affairs (USDI)BLMB ureau of Land Management (USDI)BMPBest Management Practice [Urban WATER Use]BODB iochemical Oxygen Demand/Biological Oxygen DemandBOD5 Biological Oxygen Demand 5 DaysBOR( ) Bureau of Reclamation (USDI)BPBarometric Present (Time)BPIB ureau of Plant Industry [Evaporation Pan] (USDA)BPTBest Practicable Control TechnologyBSCB iological Sciences Center (DRI) WATER WORDS DictionaryDIVISION OF WATER PLANNING2 Abbreviations and AcronymsBTUB ritish Thermal UnitBWPCB ureau of WATER Pollution Control (NDEP/DCNR)BWQPB ureau of WATER Quality Planning (NDEP/DCNR)BWRB oiling WATER ReactorCCelsius (Centigrade Temperature Scale)CAAC lean Air Act (EPA)CAPAC ritical Aquifer Protection Area (SDWA)CBRAC oastal Barrier Resources Act of 1982 (FEMA)CBRSC oastal Barrier Resources System (FEMA)CCEC arbon-Chloroform ExtractCDIC apacitive DeionizationCECC ation Exchange CapacityCEQAC alifornia Environmental Quality ActCERCLAC omprehensive Environmental Response, Compensation, and Liability Act (EPA)CERESC alifornia Environmental Resources Evaluation SystemCFCsChlorofluorocarbonsCFCubic Feet (or Foot)CFRCode of Federal RegulationsCFS (cfs)

3 Cubic Feet per SecondCFSMC ubic Feet per Second per Square MileCIRC onsumptive Irrigation Requirement/Crop Irrigation RequirementCLRC lassical Linear Regression [Model]CLOMRC onditional Letter of Map Revision (FEMA)CMICrop Moisture IndexCOICone of InfluenceCODC hemical Oxygen DemandCODCone of Army Corps of Engineers (also USACE)CPCultural PracticesCPIC onsumer Price IndexCSOC ombined Sewer OverflowCSSC ombined Sewer SystemCVPC entral Valley Project (State of California)CWAC lean WATER Act (EPA)CZMAC oastal Zone Management ActDBHD iameter at Breast HeightDBPsDisinfection By-ProductsDCNRD epartment of Conservation and Natural Resources (State of Nevada)D/DBPD isinfectant and Disinfection By-Product Rule (EPA)DEISD raft Environmental Impact Statement (NEPA/EPA)DEPD ivision of Environmental Protection (DCNR)DNAPLsDenser (than WATER ) Non-Aqueous-Phase LiquidsDODissolved OxygenDOCD issolved Organic CarbonDOFD ivision of Forestry (DCNR)DOWD ivision of Wildlife (DCNR)DDTD ichlorodiphenyltrichloroethaneDRID esert Research Institute (University of Nevada System, State of Nevada)DUDistribution UniformityDWDistilled WaterDWRD ivision of WATER Resources (DCNR)DWRD epartment of WATER Resources (The Resources Agency, State of California)DIVISION OF WATER PLANNINGW ater WORDS DictionaryAbbreviations and Acronyms3 DWPD ivision of WATER Planning (DCNR, also NDWP)EAEnvironmental Assessment (NEPA)EAEndangerment Assessment (EPA)ECElectrical Conductivity/ElectroconductivityEDFE nvironmental Defense FundEDIE qual Discharge IncrementEDRE lectrodialysis ReversalEEECE nergy and Environmental Engineering Center (DRI)EISE nvironmental Impact Statement (NEPA/EPA)ENSOEl Ni o/Southern OscillationEPA[ ] Environmental Protection AgencyEPAct(National) Energy Policy ActESAE ndangered Species Act (USFWS)ESWTRE nhanced Surface WATER Treatment Rule (EPA)

4 ETEvapotranspirationETAWE vapotranspiration of Applied WaterETRE qual Transit RateEWMPE fficient WATER Management Practice [Agricultural WATER Use]00 Viscosity [eta]FFahrenheit (Temperature Scale)FBFMF lood Boundary Floodway Map (FEMA)FEMAF ederal Emergency Management AgencyFERCF ederal Energy Regulatory CommissionFHBMF lood Hazard Boundary Map (FEMA)FIAF ederal Insurance Administration (FEMA)FIFRAF ederal Insecticide, Fungicide, and Rodenticide Act (EPA)FIRMF lood Insurance Rate Map (FEMA)FISF lood Insurance Study (FEMA)FLMPAF ederal Land Management and Policy ActFOEF riends of the EarthFONSIF inding of No Significant Impact (NEPA)FPEF lood Protection Elevation (FEMA)FSFeasibility Study (EPA)FSAFood Security Act (USDA)FTEFull Time Equivalent (Employment)FWSFree WATER SurfaceGACG ranular Activated CarbonGACTG ranular Activated Carbon TreatmentGCGas ChromatographyGC/FIDGas Chromatography/Flame Ionization DetectorGC/MSGas Chromatography/Mass SpectrometerGCMsGeneral Circulation ModelsGDGeologic Division (USGS)GDPG ross Domestic ProductGEDG allon per Employee per DayGFDG allons per Square Foot [of membrane] per Height (USGS)GIDG eneral Improvement DistrictGISG eographic Information SystemGMWGram Molecular WeightGPCG allons per Capita (Person) WATER WORDS DictionaryDIVISION OF WATER PLANNING4 Abbreviations and AcronymsGPCDG allons per Capita per DayGPDG allons per DayGPEDG allons per Employee per DayGPSG lobal Positioning SystemGSA[Federal] General Services AdministrationGWHG igawatt-Hour((dDry Adiabatic Lapse Rate [gamma]((sWet (Saturated) Adiabatic Lapse Rate [gamma]HGLH ydraulic Grade LineHCPH abitat Conservation Plan (EPA)HRSH azardous Ranking System (EPA)))))

5 HSAH ydrologic Study Area (DWR, State of California)HTHigh TideHWHigh WaterHWMHigh WATER MarkiHydraulic GradientICRI nformation Collection Rule (EPA) EfficiencyIOWEI nternational Office for WATER Education (Utah State University)IRPI ntegrated Resource PlanningJTUJ ackson Turbidity UnitKHydraulic ConductivityKKelvin (temperature scale)KdSoil Sorption CoefficientkKinetic EnergyKGALK ilogallons (thousand gallons)KGRAK nown Geothermal Resource AreaKWKilowattKWHK ilowatt-HourLALoad AllocationLC50 Lethal Concentration 50 (percent)LCALife Cycle AssessmentLCTL ahontan Cutthroat Trout (USFWS)LD50 Lethal Dose 50 (percent)LILangelier IndexLNNatural LogarithmLNAPLsLighter (than WATER ) Non-Aqueous-Phase LiquidsLOMAL etter of Map Amendment (FEMA)LOMRL etter of Map Revision (FEMA)LRLeaching RequirementlsdLand Surface DatumLTARLong Term Acceptance Rate [of Soils]LVEAL ahontan Valley Environmental AllianceLWLow WaterLWMLow WATER MarkLWRL ight WATER Reactor77 Scavenging Coefficient [lambda]MAFM illion Acre-FeetDIVISION OF WATER PLANNINGW ater WORDS DictionaryAbbreviations and Acronyms5M&IMunicipal and IndustrialMATCM aximum Acceptable Toxicant ConcentrationMBASM ethylene Blue Active SubstanceMCLM aximum Contaminant Level (EPA)MCLGM aximum Contaminant Level Goal (EPA)MEQ/LMilliequivalents per LiterMGDM illion Gallons per DayMG/L (mg/l)Milligrams per LiterMHWMean High WaterMISM anagement Indicator SpeciesMLSSM ixed Liquor Suspended SolidsMLVSSM ixed Liquor Volatile Suspended SolidsMLWMean Low WaterMPMeasuring PointMPAM icroscopic Particulate AnalysisMPNMost Probable NumberMPRSAM arine Protection, Research, and Sanctuaries Act (EPA)

6 MSMass SpectrometryMSL[Elevation above] Mean Sea LevelMTBEM ethyl Tertiary Butyl EtherMWMegawatt (one million watts)MYAM illion Years Ago Micron (one-millionth of a meter) [mu]NAPLsNon-Aqueous-Phase LiquidsNASQANN ational Stream Quality Accounting Network (USGS)NBMGN evada Bureau of Mines and GeologyNCPN ational Contingency Plan (EPA)NCWSNon-Community WATER SystemNDEPN evada Division of Environmental Protection (DCNR)NDEPSN ational Pollutant Discharge Elimination System (EPA)NDOWN evada Division of Wildlife (DCNR)NDSPN evada Division of State Parks (DCNR)NDTN ondestructive TestingNDWPN evada Division of WATER Planning (DCNR)NDWRN evada Division of WATER Resources (State Engineer s Office, DCNR) Elsewhere Classified (SIC Codes)NEPAN ational Environmental Policy Act (EPA)NESDISN ational Environmental Satellite, Data and Information Service (NOAA)NEXRADD oppler Radar Data System (NWS/NOAA)NFIPN ational Flood Insurance Program (FEMA)NFSN ational Forest Service (USDA)NGVDN ational Geodetic Vertical DatumNHP[Nevada] Natural Heritage Program (DCNR)NIDSNEXRAD Information Dissemination Service (NWS/NOAA)NIFCN ational Interagency Fire Center (BLM)NIPDWRN ational Interim Primary Drinking WATER RegulationsNMNautical MileNMDN ational Mapping Division (USGS)NMFSN ational Marine Fisheries Service (NOAA)NOAAN ational Oceanic and Atmospheric Administration ( Department of Commerce)NOHSCPN ational Oil and Hazardous Substances Contingency Plan (EPA)NOSN ational Ocean Service (NOAA)NOWN onhazardous Oil Field Waste (EPA) WATER WORDS DictionaryDIVISION OF WATER PLANNING6 Abbreviations and AcronymsNOxOxides of NitrogenNPDESN ational Pollutant Discharge Elimination System (NDEP/EPA)NPDWRN ational Primary Drinking WATER Regulations (SDWA/EPA)NPLN ational Priorities List [ Superfund List] (EPA)NPSNon-Point Source [Pollution]NPSN ational Park Service (USDI)

7 NRCN ational Research CouncilNRCN ational Response Center ( Coast Guard)NRCSN atural Resources Conservation Service (USDA)NRDCN atural Resources Defense Council (private environmental organization)NRPN atural Resources Plan (DCNR)NRPN ational Research Program [Centers] (WRD/USGS)NRTN ational Response Team (EPA)NSDWRN ational Secondary Drinking WATER RegulationsNSFN ational Strike Force ( Coast Guard)NSPSNew Source Performance Standards (EPA)NTUN ephelometric Turbidity UnitNVSNon-Volatile SolidsNVSSNon-Volatile Suspended SolidsNWICN ational WATER Information Clearinghouse (USGS)NWPAN ewlands WATER Protective AssociationNWRN ational Wildlife Refuge [System] (USFWS)NWSN ational Weather Service (NOAA)O&MOperations and MaintenanceOCOrganic CarbonOCAPO perating Criteria and Procedures (TCID/USBR)OFAO ther Federal Agencies [Program] (WRD/USGS)OLSO rdinary Least Squares (statistics)OM&ROperations, Maintenance, and ReplacementOSMO ffice of Surface Mining Reclamation and Enforcement (Bureau of Mines/USDI)OTECO cean Thermal Energy ConversionPAHsPolycyclic Aromatic Hydrocarbons, or Polararomatic HydrocarbonsPAMsPolyacrylamidesPCBsPolyc hlorinated BiphenylsPCEP erchloroethylenePCNsPolychlorinated NaphthalenesPCWCDP ershing County WATER Conservation District [Nevada]PDCP roject Dependable CapacityPDSIP almer Drought Severity IndexPEPopulation EquivalentpHHydrogen Ion Concentration [Potential of Hydrogen]PHSP ublic Health ServicePIAP racticably Irrigable LawPLSSP ublic Land Survey SystemPMFP robable Maximum Flood (FEMA)

8 PNAsPolynuclear Aromatic HydrocarbonsPOCP oint of CompliancePOEP oint-of-Entry [Treatment Device]POMP articulate Organic MatterPOSWP rivately-Owned Stored WaterPOTWP ublicly-Owned Treatment WorksDIVISION OF WATER PLANNINGW ater WORDS DictionaryAbbreviations and Acronyms7 POUP oint-of-Use [Treatment Device]PPBP arts per BillionPPMP arts per MillionPPTP arts per ThousandPRPP otentially Responsible Party (EPA)PSPoint Source [Pollution]PSAP rimary Settlement AgreementPSPP aralytic Shellfish PoisoningPWRP ressurized WATER ReactorPWSP ublic WATER System/Public WATER SupplyPWSSP ublic WATER Supply SystemPWSSPP ublic WATER System Supervision ProgramMMInfiltration Index [phi]QVolumetric Flow Rate (Venturi Effect)QBOQ uasi-Biennial Oscillation (ENSO)QPFQ uantitative Precipitation ForecastQSCQ uaternary Sciences Center (DRI)RR aumur (or Reaumur) Thermometer ScaleRCorrelation CoefficientR2 Coefficient of DeterminationRBCR otating Biological ContractorRCRAR esource Conservation and Recovery Act (EPA)RDIR eclamation Drought IndexRe/UUReynolds NumberRFDR egulatory Flood Datum (FEMA)RIRemedial Investigation (EPA)RI/FSRemedial Investigation/Feasibility Study (EPA)RMCLR ecommended Maximum Containment LevelRMHQsRequirements to Maintain Existing Higher Quality (NDEP/DCNR)RMPR esource Management Plan (BLM)ROER esidue on EvaporationRRTR egional Response Team ( Coast Guard)RSCR esidual Sodium CarbonateRVDR ecreation Visitor Day7Q10 Seven-Day 10-Year Low AdjustedSABS cience Advisory Board (EPA)SAES easonal Application EfficiencySARS odium Adsorption RatioSASSoil Absorption SystemSASS olar Aquatic SystemsSBSedimentation BasinSBRS equencing Batch ReactorsSCSSoil Conservation Service (now NRCS)SDIS tand Density IndexSDWASafe Drinking WATER Act (EPA)

9 SFSubsurface FlowSFHAS pecial Flood Hazard Area (FEMA)SFIPS tandard Flood Insurance Policy (FEMA)SGSpecific GravitySHRS ignificant Hydrologic ResourcesWater WORDS DictionaryDIVISION OF WATER PLANNING8 Abbreviations and AcronymsSI[Le] Syst me International [d Unit s] (Metric System)SICS tandard Industrial Classification [Code]SLPASea Level Pressure Anomaly (ENSO)SMCLS econdary Maximum Contaminant Level (EPA)SMZS treamside Management Zone (USFWS)SNOTELS nowpact Telemetry (NRCS)SOCS uspended Organic CarbonSOCS ynthetic Organic ChemicalSODS ediment Oxygen DemandSP GRSpecific GravitySP HTSpecific HeatSPCCPS pill Prevention Control and Countermeasures Plan (CWA)SPFS tandard Project FloodSPIS tandardized Precipitation IndexSRPS oluble Reactive PhosphateSSSuspended SolidsSSASole Source AquiferSSTASea Surface Temperature Anomaly (ENSO)STES eptic Tank EffluentST-SASS eptic Tank Soil Absorption SystemSVSludge VolumeSVIS ludge Volume IndexSWAPS ource WATER Protection Program (EPA)SWCSSoil and WATER Conservation SocietySWESnow WATER EquivalentSWPS tate WATER Project (State of California)SWPPS ource WATER Protection Program (EPA)SWRCBS tate WATER Resources Control Board (DWR/State of California)SWSIS urface WATER Supply IndexSWTRS urface WATER Treatment