Community Water System · PWSID NM3518025

Las Vegas (City Of)

Serves 14,530 peopleSurface WaterOwner: Local GovernmentLas Vegas, New Mexico
Nothing open right now.

On record since 2006: 76 violations. 11 over the limit · 29 treatment lapses · 23 missed or late tests · 13 notices or reports. Most recent began 2025-02-01.

For this year's test results, ask the utility for its annual Consumer Confidence Report. Every community system must publish one.

11Over the limit
29Treatment lapse
23Missed or late test
13Notice or report

More violations on record than 91% of active water systems in New Mexico. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

20052006 · Notice or report: 12008 · Notice or report: 12010 · Treatment lapse: 12010 · Missed or late test: 12010 · Notice or report: 120102012 · Notice or report: 12015 · Missed or late test: 42015 · Missed or late test: 420152016 · Missed or late test: 12016 · Notice or report: 22017 · Notice or report: 12018 · Missed or late test: 22019 · Missed or late test: 32019 · Notice or report: 12020 · Missed or late test: 12020 · Notice or report: 120202021 · Treatment lapse: 12021 · Missed or late test: 42021 · Missed or late test: 42021 · Notice or report: 32022 · Treatment lapse: 22022 · Missed or late test: 22023 · Over the limit: 62023 · Over the limit: 62023 · Treatment lapse: 162023 · Treatment lapse: 162023 · Treatment lapse: 162023 · Treatment lapse: 162023 · Treatment lapse: 162023 · Treatment lapse: 162023 · Missed or late test: 22023 · Notice or report: 12024 · Over the limit: 52024 · Over the limit: 52024 · Treatment lapse: 82024 · Treatment lapse: 82024 · Treatment lapse: 82024 · Missed or late test: 22025 · Treatment lapse: 12025 · Missed or late test: 12025
One square ≈ 3 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
14% over the limit · 1138% treatment lapse · 2930% missed or late test · 2317% notice or report · 13

Across New Mexico, 40% of violations are missed or late tests and 6% are water over a limit.

How far over the limit

at the limit2×5×10×100×+Trihalomethanes (TTHM)2024-10-01 · Trihalomethanes (TTHM): measured 0.0870 MG/L vs limit 0.0800 MG/L (1.1×)2024-07-01 · Trihalomethanes (TTHM): measured 0.0900 MG/L vs limit 0.0800 MG/L (1.1×)2024-04-01 · Trihalomethanes (TTHM): measured 0.0850 MG/L vs limit 0.0800 MG/L (1.1×)2024-01-01 · Trihalomethanes (TTHM): measured 0.0900 MG/L vs limit 0.0800 MG/L (1.1×)2024-01-01 · Trihalomethanes (TTHM): measured 0.0840 MG/L vs limit 0.0800 MG/L (1.1×)2023-10-01 · Trihalomethanes (TTHM): measured 0.0820 MG/L vs limit 0.0800 MG/L (1.0×)2023-07-01 · Trihalomethanes (TTHM): measured 0.0850 MG/L vs limit 0.0800 MG/L (1.1×)2023-04-01 · Trihalomethanes (TTHM): measured 0.0810 MG/L vs limit 0.0800 MG/L (1.0×)2023-04-01 · Trihalomethanes (TTHM): measured 0.0870 MG/L vs limit 0.0800 MG/L (1.1×)2023-04-01 · Trihalomethanes (TTHM): measured 0.0900 MG/L vs limit 0.0800 MG/L (1.1×)2023-01-01 · Trihalomethanes (TTHM): measured 0.0830 MG/L vs limit 0.0800 MG/L (1.0×)
Each dot is one over-the-limit violation: the measured value divided by the limit it broke, on a log scale. Most legal limits for chemicals are running averages set for a lifetime of drinking, so “just over” and “ten times over” are very different news. Hover a dot for the numbers.

Lead & copper at the tap

Utilities sample taps in homes most likely to have lead pipes, and report the 90th-percentile result: 9 in 10 homes sampled came in at or below this number. Above the red line (the action level) the utility must act. The action level is not a safe level; EPA's health goal for lead is zero. EPA's file does not date these results, so they are shown highest first.

Lead, 90th percentile 3 results on file · action level 15 ppb

2.2 ppb
2.1 ppb
1.6 ppb

Every violation on record

  1. 2025-02-01Surface water filtration (IESWTR)Single Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  2. 2025-01-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Period ended · no return to compliance on file
  3. 2024-10-01Carbon, TotalTreatment Technique Precursor Removalmeasured 0.9100 RATIO · limit 1.00 RATIOPeriod ended · no return to compliance on file
  4. 2024-10-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  5. 2024-10-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  6. 2024-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0870 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  7. 2024-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0900 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  8. 2024-07-01Carbon, Total ×3Treatment Technique Precursor Removalmeasured 0.9200 RATIOBack in compliance
  9. 2024-04-01Carbon, TotalTreatment Technique Precursor Removalmeasured 0.8300 RATIOPeriod ended · no return to compliance on file
  10. 2024-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0850 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  11. 2024-01-01Carbon, Total ×3Treatment Technique Precursor Removalmeasured 0.8400 RATIO · limit 1.00 RATIOPeriod ended · no return to compliance on file
  12. 2024-01-01Trihalomethanes (TTHM) ×2MCL, Averagemeasured 0.0900 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  13. 2023-12-01Surface water filtration (IESWTR)Single Turbidity Exceed (Enhanced SWTR)Back in compliance
  14. 2023-11-23Public NoticePN Violation for NPDWR ViolationBack in compliance
  15. 2023-11-01Surface water filtration (IESWTR)Single Turbidity Exceed (Enhanced SWTR)Back in compliance
  16. 2023-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0820 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  17. 2023-10-01Carbon, Total ×3Treatment Technique Precursor Removalmeasured 0.8500 RATIOPeriod ended · no return to compliance on file
  18. 2023-07-01Carbon, Total ×3Treatment Technique Precursor Removalmeasured 0.8800 RATIO · limit 1.00 RATIOPeriod ended · no return to compliance on file
  19. 2023-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0850 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  20. 2023-05-07Surface water filtration (IESWTR)Failure Submit Filter Profile/CPE ReportBack in compliance
  21. 2023-04-01Carbon, Total ×3Treatment Technique Precursor Removalmeasured 0.7300 RATIOPeriod ended · no return to compliance on file
  22. 2023-04-01Trihalomethanes (TTHM) ×3MCL, Averagemeasured 0.0810 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  23. 2023-03-08Surface water filtration (IESWTR)Failure Submit Filter Profile/CPE ReportBack in compliance
  24. 2023-03-01Surface water treatment (SWTR)Treatment Technique (SWTR and GWR)Back in compliance
  25. 2023-03-01Surface water filtration (IESWTR)Single Turbidity Exceed (Enhanced SWTR)Back in compliance
Show the other 37 entries
  1. 2023-02-01Surface water filtration (IESWTR)Single Turbidity Exceed (Enhanced SWTR)Back in compliance
  2. 2023-02-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Back in compliance
  3. 2023-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0830 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  4. 2023-01-01Surface water filtration (IESWTR)Single Turbidity Exceed (Enhanced SWTR)Back in compliance
  5. 2022-03-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  6. 2022-02-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  7. 2022-01-01Carbon, Total ×2Treatment Technique Precursor Removalmeasured 0.9100 RATIOBack in compliance
  8. 2021-12-18Public NoticePN Violation for NPDWR ViolationBack in compliance
  9. 2021-10-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Period ended · no return to compliance on file
  10. 2021-06-24Public NoticePN Violation for NPDWR ViolationBack in compliance
  11. 2021-06-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  12. 2021-06-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  13. 2021-04-01Groundwater RuleFailure to Notify Other PWSBack in compliance
  14. 2021-04-01Surface water treatment (SWTR)Treatment Technique (SWTR and GWR)Back in compliance
  15. 2021-02-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  16. 2020-09-25Public NoticePN Violation for NPDWR ViolationBack in compliance
  17. 2020-01-01Revised Total Coliform RuleMONBack in compliance
  18. 2019-08-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  19. 2019-04-01Groundwater RuleFailure to Notify Other PWSBack in compliance
  20. 2019-03-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  21. 2019-03-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  22. 2018-12-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  23. 2018-12-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  24. 2017-04-01Groundwater RuleFailure to Notify Other PWSBack in compliance
  25. 2016-12-18Public NoticePN Violation for NPDWR ViolationBack in compliance
  26. 2016-06-02Revised Total Coliform RuleOtherBack in compliance
  27. 2016-06-01Revised Total Coliform RuleMONBack in compliance
  28. 2015-09-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  29. 2015-09-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  30. 2015-06-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  31. 2015-06-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  32. 2012-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  33. 2010-11-04Public NoticePN Violation for NPDWR ViolationBack in compliance
  34. 2010-10-01Surface water treatment (LT2)Failure Submit Treatment Requirement RptBack in compliance
  35. 2010-01-02Dbp Stage 2Failure Submit IDSE/Subpart V Plan RptBack in compliance
  36. 2008-11-28Public NoticePN Violation for NPDWR ViolationBack in compliance
  37. 2006-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance

System details

Population served14,530
Service connections6,458
Water sourceSurface Water
System typeCommunity Water System
OwnerLocal Government
StatusActive
CityLas Vegas
EPA ZIP on file87701

Areas served

  • Las Vegas, San Miguel County

Reading this record

Las Vegas (City Of) is a community water system that draws from surface water and serves about 14,530 people in Las Vegas, New Mexico. Everything above comes from the EPA's Safe Drinking Water Information System (SDWIS), where states report every violation by every public water system.

Four kinds of violation. Only one is a measurement of the water: over the limit means a test came back above a legal maximum (an MCL). A treatment lapse means a required protective step was not done, such as disinfection, filtration, fixing a defect an inspector found, or filing a lead-pipe inventory. A missed or late test means a required test was skipped or never reported. That is the most common kind, and the most misread: it does not mean the water was bad, and it does not mean the water was fine. Notices and reports covers public notices and the annual Consumer Confidence Report.

Status. “Back in compliance” means the state recorded a return to compliance. “Period ended” means the violation's compliance period is over but no return to compliance was ever filed, which is common in older records. EPA's federal copy lags state records by months, so call the utility for anything current.