Community Water System · PWSID NM3527231

Grenville Water System

Serves 45 peopleGroundwaterOwner: Local GovernmentGrenville, New Mexico
Nothing open right now.

On record since 2006: 45 violations. 1 over the limit · 3 treatment lapses · 18 missed or late tests · 23 notices or reports. Most recent began 2022-11-06.

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

1Over the limit
3Treatment lapse
18Missed or late test
23Notice or report

More violations on record than 80% 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: 12010 · Missed or late test: 120102013 · Notice or report: 12014 · Missed or late test: 52014 · Missed or late test: 52014 · Missed or late test: 52014 · Missed or late test: 52014 · Missed or late test: 52014 · Notice or report: 12015 · Treatment lapse: 12015 · Notice or report: 32015 · Notice or report: 32015 · Notice or report: 320152017 · Missed or late test: 12017 · Notice or report: 22017 · Notice or report: 22018 · Over the limit: 12018 · Treatment lapse: 12018 · Notice or report: 12019 · Missed or late test: 12019 · Notice or report: 22019 · Notice or report: 22020 · Missed or late test: 72020 · Missed or late test: 72020 · Missed or late test: 72020 · Missed or late test: 72020 · Missed or late test: 72020 · Missed or late test: 72020 · Missed or late test: 72020 · Notice or report: 22020 · Notice or report: 220202021 · Treatment lapse: 12021 · Missed or late test: 22021 · Missed or late test: 22021 · Notice or report: 72021 · Notice or report: 72021 · Notice or report: 72021 · Notice or report: 72021 · Notice or report: 72021 · Notice or report: 72021 · Notice or report: 72022 · Missed or late test: 12022 · Notice or report: 32022 · Notice or report: 32022 · Notice or report: 32025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
2% over the limit · 17% treatment lapse · 340% missed or late test · 1851% notice or report · 23

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

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

1.2 ppb
1.2 ppb
0.7 ppb

Every violation on record

  1. 2022-11-06Public NoticePN Violation for NPDWR ViolationBack in compliance
  2. 2022-07-28Public NoticePN Violation for NPDWR ViolationBack in compliance
  3. 2022-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  4. 2022-05-01Revised Total Coliform RuleMONBack in compliance
  5. 2021-12-19Public NoticePN Violation for NPDWR ViolationBack in compliance
  6. 2021-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  7. 2021-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  8. 2021-09-15Revised Total Coliform RuleTTBack in compliance
  9. 2021-09-01Revised Total Coliform RuleMONBack in compliance
  10. 2021-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  11. 2021-06-26Public Notice ×4PN Violation for NPDWR ViolationBack in compliance
  12. 2020-11-01Revised Total Coliform RuleMONBack in compliance
  13. 2020-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  14. 2020-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  15. 2020-05-01Revised Total Coliform RuleMONBack in compliance
  16. 2020-04-01Revised Total Coliform RuleMONBack in compliance
  17. 2020-03-01Revised Total Coliform RuleMONBack in compliance
  18. 2020-02-01Revised Total Coliform RuleMONBack in compliance
  19. 2020-01-01AsbestosMonitoring, RegularPeriod ended · no return to compliance on file
  20. 2020-01-01Revised Total Coliform RuleMONBack in compliance
  21. 2019-08-23Public NoticePN Violation for NPDWR ViolationBack in compliance
  22. 2019-08-16E. ColiMonitoring, Source Water (GWR)Back in compliance
  23. 2019-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  24. 2018-08-20Revised Total Coliform RuleTTBack in compliance
  25. 2018-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
Show the other 13 entries
  1. 2018-07-01Revised Total Coliform RuleMCLBack in compliance
  2. 2017-11-08Public NoticePN Violation for NPDWR ViolationBack in compliance
  3. 2017-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  4. 2017-02-01Revised Total Coliform RuleMONBack in compliance
  5. 2015-12-27Groundwater RuleFailure To Address DeficiencyBack in compliance
  6. 2015-09-27Public Notice ×2PN Violation for NPDWR ViolationBack in compliance
  7. 2015-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  8. 2014-10-02Public NoticePN Violation for NPDWR ViolationBack in compliance
  9. 2014-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  10. 2014-09-22E. Coli ×4Monitoring, Source Water (GWR)Back in compliance
  11. 2013-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  12. 2010-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  13. 2006-07-01Public NoticePN Violation for NPDWR ViolationBack in compliance

System details

Population served45
Service connections18
Water sourceGroundwater
System typeCommunity Water System
OwnerLocal Government
StatusActive
CityGrenville
EPA ZIP on file88424

Areas served

  • Grenville, Union County

Reading this record

Grenville Water System is a community water system that draws from groundwater and serves about 45 people in Grenville, 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.