Community Water System · PWSID NM3508817

Thoreau Water & Sanitation District

Serves 1,173 peopleGroundwaterOwner: Local GovernmentThoreau, New Mexico
Nothing open right now.

On record since 2011: 32 violations. 1 over the limit · 3 treatment lapses · 22 missed or late tests · 6 notices or reports. Most recent began 2024-10-23.

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
22Missed or late test
6Notice or report

More violations on record than 72% 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

200520102011 · Missed or late test: 12014 · Over the limit: 12014 · Missed or late test: 42014 · Missed or late test: 42014 · Missed or late test: 42014 · Missed or late test: 42015 · Missed or late test: 32015 · Missed or late test: 32015 · Missed or late test: 320152016 · Missed or late test: 12016 · Notice or report: 12017 · Missed or late test: 12019 · Missed or late test: 112019 · Missed or late test: 112019 · Missed or late test: 112019 · Missed or late test: 112019 · Missed or late test: 112019 · Missed or late test: 112019 · Missed or late test: 112019 · Missed or late test: 112019 · Missed or late test: 112019 · Missed or late test: 112019 · Missed or late test: 1120202022 · Notice or report: 22022 · Notice or report: 22024 · Treatment lapse: 32024 · Treatment lapse: 32024 · Treatment lapse: 32024 · Missed or late test: 12024 · Notice or report: 32024 · Notice or report: 32024 · Notice or report: 32025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
3% over the limit · 19% treatment lapse · 369% missed or late test · 2219% notice or report · 6

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×+Combined Radium (-226 and...2014-01-01 · Combined Radium (-226 and -228): measured 6.00 PCI/L vs limit 5.00 PCI/L (1.2×)
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 7 results on file · action level 15 ppb

4.3 ppb
3 ppb
0 ppb
0 ppb
0 ppb
0 ppb
0 ppb

Every violation on record

  1. 2024-10-23Groundwater Rule ×2Failure To Address DeficiencyBack in compliance
  2. 2024-10-17Lead service line inventoryTTBack in compliance
  3. 2024-10-17Lead service line inventoryRPTBack in compliance
  4. 2024-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  5. 2024-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  6. 2024-07-28Groundwater RuleFailure to Consult with StateBack in compliance
  7. 2022-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  8. 2022-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  9. 2019-10-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  10. 2019-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  11. 2019-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  12. 2019-07-01Chlorine ×2Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  13. 2019-04-01Chlorine ×2Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  14. 2019-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  15. 2019-01-01Chlorine ×2Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  16. 2019-01-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  17. 2017-04-20E. ColiMonitoring, Source Water (GWR)Back in compliance
  18. 2016-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  19. 2016-05-15Public NoticePN Violation for NPDWR ViolationBack in compliance
  20. 2015-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  21. 2015-09-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  22. 2015-09-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  23. 2014-09-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  24. 2014-09-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  25. 2014-01-01Combined Radium (-226 and -228)MCL, Averagemeasured 6.00 PCI/L · limit 5.00 PCI/LBack in compliance
Show the other 3 entries
  1. 2014-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  2. 2014-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  3. 2011-01-01AsbestosMonitoring, RegularBack in compliance

System details

Population served1,173
Service connections345
Water sourceGroundwater
System typeCommunity Water System
OwnerLocal Government
StatusActive
CityThoreau
EPA ZIP on file87323

Areas served

  • Thoreau, Mckinley County

Reading this record

Thoreau Water & Sanitation District is a community water system that draws from groundwater and serves about 1,173 people in Thoreau, 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.