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Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS IDNM3518025
PWS NameLAS VEGAS (CITY OF)
PWS TypeCommunity water system
Owner TypeLocal government
Primary SourceSurface water
Primacy TypeState
Is Wholesaler?No
Population Served14530
County ServedSan Miguel

Note

The tables below list all violations that the state reported to EPA for this water system. Health-based violations are listed first, followed by treatment technique, MRDL, monitoring, reporting, and other violations.

Health-based Violations of maximum contaminant levels (MCLs) or maximum residual disinfectant levels (MRDLs), which specify the highest concentrations of contaminants or disinfectants, respectively, allowed in drinking water; or of treatment technique (TT) rules, which specify required processes intended to reduce the amounts of contaminants in drinking water. MCLs, MRDLs, and treatment technique rules are all health-based drinking water standards.
Maximum Contaminant Level or MCL The highest level of a contaminant that is allowed in drinking water. MCLs are set as close to the MCLGs as feasible using the best available treatment technology.
Treatment Technique A required process intended to reduce the level of a contaminant in drinking water.
Maximum residual disinfectant level or MRDL The highest level of a disinfectant allowed in drinking water. There is convincing evidence that addition of a disinfectant is necessary for control of microbial contaminants.
Monitoring & reporting Failure to conduct regular monitoring of drinking water quality, as required by SDWA, or to submit monitoring results in a timely fashion to the primacy agency or EPA.
Public notification & other Failure to provide notification to the public as required by the Violations of Public Notification Rule and the Consumer Confidence Report Rule, and violations of other requirements such as those violations related to variances and exemptions.

PWS Violation

Violations

Violation Category CodeViolation Type DescriptionRule NameContaminant NameViolation IDCompliance Status DescriptionCompliance Period Begin DateCompliance Period End DateIs Health Based Ind
TTFailure To Address DeficiencyGround Water RuleGroundwater Rule2187Returned to Compliance01-AUG-2025 - Yes
TTFailure To Address DeficiencyGround Water RuleGroundwater Rule2182Open01-AUG-2025 - Yes
TTFailure To Address DeficiencyGround Water RuleGroundwater Rule2188Open01-AUG-2025 - Yes
TTFailure To Address DeficiencyGround Water RuleGroundwater Rule2185Returned to Compliance01-AUG-2025 - Yes
TTFailure To Address DeficiencyGround Water RuleGroundwater Rule2183Returned to Compliance01-AUG-2025 - Yes
TTFailure To Address DeficiencyGround Water RuleGroundwater Rule2184Returned to Compliance01-AUG-2025 - Yes
TTFailure To Address DeficiencyGround Water RuleGroundwater Rule2186Returned to Compliance01-AUG-2025 - Yes
TTSingle Turbidity Exceed (Enhanced SWTR)Interim and Long Term 1 Enhanced Surface Water Treatment RuleInterim Enhanced Surface Water Treatment Rule2180Returned to Compliance01-FEB-202528-FEB-2025Yes
MRMonitoring of Treatment (SWTR-Filter)Surface Water Treatment RuleSurface Water Treatment Rule2181Returned to Compliance01-JAN-202531-JAN-2025No
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM2175Known01-OCT-202431-DEC-2024Yes
MRMonitoring, Turbidity (Enhanced SWTR)Interim and Long Term 1 Enhanced Surface Water Treatment RuleInterim Enhanced Surface Water Treatment Rule2178Returned to Compliance01-OCT-202431-OCT-2024No
MRMonitoring of Treatment (SWTR-Filter)Surface Water Treatment RuleSurface Water Treatment Rule2177Returned to Compliance01-OCT-202431-OCT-2024No
TTTreatment Technique Precursor RemovalStage 1 Disinfectants and Disinfection Byproducts RuleCARBON, TOTAL2179Returned to Compliance01-OCT-202431-DEC-2024Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM2174Known01-JUL-202430-SEP-2024Yes
TTTreatment Technique Precursor RemovalStage 1 Disinfectants and Disinfection Byproducts RuleCARBON, TOTAL2170Returned to Compliance01-JUL-202430-SEP-2024Yes
TTTreatment Technique Precursor RemovalStage 1 Disinfectants and Disinfection Byproducts RuleCARBON, TOTAL2171Returned to Compliance01-JUL-202430-SEP-2024Yes
TTTreatment Technique Precursor RemovalStage 1 Disinfectants and Disinfection Byproducts RuleCARBON, TOTAL2172Returned to Compliance01-JUL-202430-SEP-2024Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM2165Known01-APR-202430-JUN-2024Yes
TTTreatment Technique Precursor RemovalStage 1 Disinfectants and Disinfection Byproducts RuleCARBON, TOTAL2167Returned to Compliance01-APR-202430-JUN-2024Yes
TTTreatment Technique Precursor RemovalStage 1 Disinfectants and Disinfection Byproducts RuleCARBON, TOTAL2164Returned to Compliance01-JAN-202431-MAR-2024Yes
TTTreatment Technique Precursor RemovalStage 1 Disinfectants and Disinfection Byproducts RuleCARBON, TOTAL2163Returned to Compliance01-JAN-202431-MAR-2024Yes
TTTreatment Technique Precursor RemovalStage 1 Disinfectants and Disinfection Byproducts RuleCARBON, TOTAL2162Returned to Compliance01-JAN-202431-MAR-2024Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM2154Known01-JAN-202431-MAR-2024Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM2155Known01-JAN-202431-MAR-2024Yes
TTSingle Turbidity Exceed (Enhanced SWTR)Interim and Long Term 1 Enhanced Surface Water Treatment RuleInterim Enhanced Surface Water Treatment Rule2152Returned to Compliance01-DEC-202331-DEC-2023Yes
OtherPublic Notification Violation for NPDWR ViolationPublic Notice Rule and Revised PN RulePublic Notice2156Returned to Compliance23-NOV-2023 - No
TTSingle Turbidity Exceed (Enhanced SWTR)Interim and Long Term 1 Enhanced Surface Water Treatment RuleInterim Enhanced Surface Water Treatment Rule2148Returned to Compliance01-NOV-202330-NOV-2023Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM2153Known01-OCT-202331-DEC-2023Yes
TTTreatment Technique Precursor RemovalStage 1 Disinfectants and Disinfection Byproducts RuleCARBON, TOTAL2149Returned to Compliance01-OCT-202331-DEC-2023Yes
TTTreatment Technique Precursor RemovalStage 1 Disinfectants and Disinfection Byproducts RuleCARBON, TOTAL2150Returned to Compliance01-OCT-202331-DEC-2023Yes
TTTreatment Technique Precursor RemovalStage 1 Disinfectants and Disinfection Byproducts RuleCARBON, TOTAL2151Returned to Compliance01-OCT-202331-DEC-2023Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM2145Known01-JUL-202330-SEP-2023Yes
TTTreatment Technique Precursor RemovalStage 1 Disinfectants and Disinfection Byproducts RuleCARBON, TOTAL2160Returned to Compliance01-JUL-202330-SEP-2023Yes
TTTreatment Technique Precursor RemovalStage 1 Disinfectants and Disinfection Byproducts RuleCARBON, TOTAL2161Returned to Compliance01-JUL-202330-SEP-2023Yes
TTTreatment Technique Precursor RemovalStage 1 Disinfectants and Disinfection Byproducts RuleCARBON, TOTAL2147Known01-JUL-202330-SEP-2023Yes
MRFailure Submit Filter Profile/CPE ReportInterim and Long Term 1 Enhanced Surface Water Treatment RuleInterim Enhanced Surface Water Treatment Rule2142Returned to Compliance07-MAY-2023 - No
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM2143Known01-APR-202330-JUN-2023Yes
TTTreatment Technique Precursor RemovalStage 1 Disinfectants and Disinfection Byproducts RuleCARBON, TOTAL2159Returned to Compliance01-APR-202330-JUN-2023Yes
TTTreatment Technique Precursor RemovalStage 1 Disinfectants and Disinfection Byproducts RuleCARBON, TOTAL2158Returned to Compliance01-APR-202330-JUN-2023Yes
TTTreatment Technique Precursor RemovalStage 1 Disinfectants and Disinfection Byproducts RuleCARBON, TOTAL2157Returned to Compliance01-APR-202330-JUN-2023Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM2146Known01-APR-202330-JUN-2023Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM2144Known01-APR-202330-JUN-2023Yes
MRFailure Submit Filter Profile/CPE ReportInterim and Long Term 1 Enhanced Surface Water Treatment RuleInterim Enhanced Surface Water Treatment Rule2128Returned to Compliance08-MAR-2023 - No
TTSingle Turbidity Exceed (Enhanced SWTR)Interim and Long Term 1 Enhanced Surface Water Treatment RuleInterim Enhanced Surface Water Treatment Rule2130Returned to Compliance01-MAR-202331-MAR-2023Yes
TTTreatment Technique (SWTR and GWR)Surface Water Treatment RuleSurface Water Treatment Rule2133Returned to Compliance01-MAR-202331-MAR-2023Yes
TTSingle Turbidity Exceed (Enhanced SWTR)Interim and Long Term 1 Enhanced Surface Water Treatment RuleInterim Enhanced Surface Water Treatment Rule2127Returned to Compliance01-FEB-202328-FEB-2023Yes
TTMonthly Turbidity Exceed (Enhanced SWTR)Interim and Long Term 1 Enhanced Surface Water Treatment RuleInterim Enhanced Surface Water Treatment Rule2126Returned to Compliance01-FEB-202328-FEB-2023Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM2129Known01-JAN-202331-MAR-2023Yes
TTSingle Turbidity Exceed (Enhanced SWTR)Interim and Long Term 1 Enhanced Surface Water Treatment RuleInterim Enhanced Surface Water Treatment Rule2125Returned to Compliance01-JAN-202331-JAN-2023Yes
MRMonitoring of Treatment (SWTR-Filter)Surface Water Treatment RuleSurface Water Treatment Rule2123Returned to Compliance01-MAR-202231-MAR-2022No
  • 1 - 50 of 145

Enforcement Actions

Enforcement Actions

Latest Enforcement IDAssociated To Violation IDEnforcement Action Type CodeEnforcement Action DescriptionEnforcement DateOriginator DescriptionEnforcement Comment
2392188SIEState Public Notification requested09-DEC-2025State -
2392182SIEState Public Notification requested09-DEC-2025State -
2392183SIEState Public Notification requested09-DEC-2025State -
2392184SIEState Public Notification requested09-DEC-2025State -
2392185SIEState Public Notification requested09-DEC-2025State -
2392186SIEState Public Notification requested09-DEC-2025State -
2392187SIEState Public Notification requested09-DEC-2025State -
2352180SOXState Compliance achieved10-APR-2025State -
2352181SOXState Compliance achieved10-APR-2025State -
2262179SIFState Public Notification received18-FEB-2025State -
2232178SOXState Compliance achieved13-DEC-2024State -
2232177SOXState Compliance achieved13-DEC-2024State -
2182175SIEState Public Notification requested25-NOV-2024State -
2162170SIFState Public Notification received19-NOV-2024State -
2162171SIFState Public Notification received19-NOV-2024State -
2162172SIFState Public Notification received19-NOV-2024State -
2072174SIFState Public Notification received12-NOV-2024State -
2362158SOXState Compliance achieved02-OCT-2024State -
2362159SOXState Compliance achieved02-OCT-2024State -
2362160SOXState Compliance achieved02-OCT-2024State -
2362161SOXState Compliance achieved02-OCT-2024State -
2362162SOXState Compliance achieved02-OCT-2024State -
2362157SOXState Compliance achieved02-OCT-2024State -
2362164SOXState Compliance achieved02-OCT-2024State -
2362167SOXState Compliance achieved02-OCT-2024State -
2362151SOXState Compliance achieved02-OCT-2024State -
2362150SOXState Compliance achieved02-OCT-2024State -
2362149SOXState Compliance achieved02-OCT-2024State -
2362163SOXState Compliance achieved02-OCT-2024State -
2002129SFOState Administrative/Compliance Order with penalty issued13-AUG-2024State -
2002143SFOState Administrative/Compliance Order with penalty issued13-AUG-2024State -
2002144SFOState Administrative/Compliance Order with penalty issued13-AUG-2024State -
2002145SFOState Administrative/Compliance Order with penalty issued13-AUG-2024State -
2002146SFOState Administrative/Compliance Order with penalty issued13-AUG-2024State -
2002147SFOState Administrative/Compliance Order with penalty issued13-AUG-2024State -
2002153SFOState Administrative/Compliance Order with penalty issued13-AUG-2024State -
2002154SFOState Administrative/Compliance Order with penalty issued13-AUG-2024State -
2002155SFOState Administrative/Compliance Order with penalty issued13-AUG-2024State -
2002165SFOState Administrative/Compliance Order with penalty issued13-AUG-2024State -
1902156SOXState Compliance achieved18-MAR-2024State -
1872148SOXState Compliance achieved01-FEB-2024State -
1862152SOXState Compliance achieved01-FEB-2024State -
1732128SOXState Compliance achieved28-NOV-2023State -
1722142SOXState Compliance achieved28-NOV-2023State -
1442130SIFState Public Notification received23-MAY-2023State -
1452133SIFState Public Notification received18-MAY-2023State -
1462131SIFState Public Notification received18-MAY-2023State -
1462132SIFState Public Notification received18-MAY-2023State -
1512126SOXState Compliance achieved01-MAY-2023State -
1502127SOXState Compliance achieved01-APR-2023State -
  • 1 - 50 of 144

PWS Facilities

All Facilities

Facility NameFacility IDIs SourceFacility Type DescriptionWater Type DescriptionAvailability DescriptionFacility Activity Status
INFILTRATION GALLERY #110652YesInfiltration GalleryGround water under the influence of surface waterPermanentInactive
WELL #62569YesWell Ground waterPermanentInactive
WELL #52568YesWell Ground waterPermanentInactive
WELL #714190YesWell Ground waterPermanentInactive
WELL #2R14189YesWell Ground waterPermanentInactive
WELL #42567YesWell Ground waterPermanentActive
WELL #22566YesWell Ground waterPermanentActive
PETERSON RESERVOIR14183YesReservoirSurface waterPermanentInactive
STORRIE RESERVOIR14185YesReservoirSurface waterPermanentActive
BRADNER RESERVOIR14184YesReservoirSurface waterPermanentActive
SETTLING BASIN - GALLINAS RIVER DIV. DAM10946YesReservoirSurface waterPermanentActive
RAW WATER INTAKE14182YesIntakeSurface waterPermanentInactive
PETERSON LAKE DAM INTAKE10947YesIntakeSurface waterPermanentInactive
GALLINAS RIVER DIVERSION DAM INTAKE7013YesIntakeSurface waterPermanentActive
STORRIE LAKE DAM INTAKE10949YesIntakeSurface waterPermanentActive
BRADNER LAKE DAM INTAKE10948YesIntakeSurface waterPermanentActive
DIST5492NoDistribution System/Zone - - Active
CAMP LUNA BOOSTER STATION13782NoPressure Control - - Active
STORRIE LAKE PUMP STATION14186NoPump Facility - - Inactive
TREATMENT PLANT #17562NoSampling Station - - Active
CABIN SITE 5MG STORAGE TANK10950NoStorage - - Active
CAMP LUNA STORAGE TANK10951NoStorage - - Active
VALENCIA STORAGE TANK10952NoStorage - - Active
STORAGE TANK #5 (TAYLOR WELL #4)14187NoStorage - - Active
FINISHED WATER CLEARWELL14652NoStorage - - Active
STORAGE TANK #4 (TAYLOR WELL #4)10953NoStorage - - Inactive
STORAGE TANK #6 (CABIN SITE)14188NoStorage - - Inactive
STORRIE LAKE PRETREATMENT UNIT14761NoTreatment Plant - - Active
FILTER PLANT MONTEZUMA589NoTreatment Plant - - Active
WELL #4 TREATMENT UNIT992NoTreatment Plant - - Active
WELL # 6 TREATMENT UNIT1003NoTreatment Plant - - Inactive
WELL # 5 TREATMENT UNIT1353NoTreatment Plant - - Inactive
TREATMENT PLANT #214181NoTreatment Plant - - Inactive
CHLORINATION STATION532NoTreatment Plant - - Inactive
  • 1 - 34 of 34

PWS Treatment Processes

Treatment Processes

Facility NameFacility IDTreatment ProcessTreatment Objective
STORRIE LAKE PRETREATMENT UNIT14761Filtration, Rapid SandParticulate removal
FILTER PLANT MONTEZUMA589Hypochlorination, PostDisinfection
FILTER PLANT MONTEZUMA589SedimentationParticulate removal
FILTER PLANT MONTEZUMA589Filtration, Rapid SandParticulate removal
WELL #4 TREATMENT UNIT992Gaseous Chlorination, PreDisinfection
  • 1 - 5 of 5
For more information on a Water System:
Ask the operators of your water system, contact your primacy agency or file a Freedom of Information Act (FOIA) request.
Drinking water in general: Find out more about your drinking water web site or call the Safe Drinking Water Hotline (1-800-426-4791). EPA has also prepared a table about various regulated drinking water contaminants.
Tools for accessing EPA drinking water data: Safe Drinking Water Information System (SDWIS) Federal Reporting Services and Drinking Water Performance and Results Report.
Research Data: As well as monitoring the levels of drinking water contaminants for which EPA has set standards, EPA, states, and water systems also carry out studies of contaminants that may need to be regulated in the future. For more information about these contaminants, please see the National Contaminant Occurrence Database.