Community Water System · PWSID 063500123

Zia Pueblo

Serves 771 peopleGroundwaterOwner: Native AmericanZia Pueblo, New Mexico
Nothing open right now.

On record since 2004: 26 violations. 12 over the limit · 5 treatment lapses · 5 missed or late tests · 4 notices or reports. Most recent began 2025-04-01.

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

12Over the limit
5Treatment lapse
5Missed or late test
4Notice or report

More violations on record than 65% 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

2004 · Notice or report: 12005 · Notice or report: 120052006 · Notice or report: 12010 · Treatment lapse: 52010 · Treatment lapse: 52010 · Treatment lapse: 52010 · Treatment lapse: 52010 · Treatment lapse: 520102015 · Over the limit: 22015 · Over the limit: 220152016 · Missed or late test: 32016 · Missed or late test: 32016 · Missed or late test: 32017 · Missed or late test: 22017 · Missed or late test: 220202022 · Over the limit: 42022 · Over the limit: 42022 · Over the limit: 42022 · Over the limit: 42023 · Over the limit: 42023 · Over the limit: 42023 · Over the limit: 42023 · Over the limit: 42024 · Over the limit: 12024 · Notice or report: 12025 · Over the limit: 12025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
46% over the limit · 1219% treatment lapse · 519% missed or late test · 515% notice or report · 4

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×+Arsenic2024-01-01 · Arsenic: measured 0.0110 UG/L vs limit 0.0100 UG/L (1.1×)2023-10-01 · Arsenic: measured 0.0110 MG/L vs limit 0.0100 MG/L (1.1×)2023-07-01 · Arsenic: measured 11.24 UG/L vs limit 10.00 UG/L (1.1×)2023-04-01 · Arsenic: measured 11.00 UG/L vs limit 10.00 UG/L (1.1×)2023-01-01 · Arsenic: measured 12.00 UG/L vs limit 10.00 UG/L (1.2×)2022-10-01 · Arsenic: measured 0.0120 MG/L vs limit 0.0100 MG/L (1.2×)2022-07-01 · Arsenic: measured 0.0120 MG/L vs limit 0.0100 MG/L (1.2×)2022-04-01 · Arsenic: measured 0.0120 MG/L vs limit 0.0100 MG/L (1.2×)2022-01-01 · Arsenic: measured 0.0120 MG/L vs limit 0.0100 MG/L (1.2×)2015-04-01 · Arsenic: measured 0.0190 MG/L vs limit 0.0100 MG/L (1.9×)2015-01-01 · Arsenic: measured 0.0190 MG/L vs limit 0.0100 MG/L (1.9×)
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 6 results on file · action level 15 ppb

2 ppb
below 2 ppb
0.6 ppb
0.6 ppb
below 0.5 ppb
0 ppb

Every violation on record

  1. 2025-04-01ArsenicMCL, Averagemeasured 0.0102 MG/LPeriod ended · no return to compliance on file
  2. 2024-02-24Public NoticePN Violation for NPDWR ViolationBack in compliance
  3. 2024-01-01ArsenicMCL, Averagemeasured 0.0110 UG/L · limit 0.0100 UG/LPeriod ended · no return to compliance on file
  4. 2023-10-01ArsenicMCL, Averagemeasured 0.0110 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  5. 2023-07-01ArsenicMCL, Averagemeasured 11.24 UG/L · limit 10.00 UG/LPeriod ended · no return to compliance on file
  6. 2023-04-01ArsenicMCL, Averagemeasured 11.00 UG/L · limit 10.00 UG/LPeriod ended · no return to compliance on file
  7. 2023-01-01ArsenicMCL, Averagemeasured 12.00 UG/L · limit 10.00 UG/LPeriod ended · no return to compliance on file
  8. 2022-10-01ArsenicMCL, Averagemeasured 0.0120 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  9. 2022-07-01ArsenicMCL, Averagemeasured 0.0120 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  10. 2022-04-01ArsenicMCL, Averagemeasured 0.0120 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  11. 2022-01-01ArsenicMCL, Averagemeasured 0.0120 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  12. 2017-10-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  13. 2017-10-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  14. 2016-12-01Revised Total Coliform RuleMONBack in compliance
  15. 2016-04-01Revised Total Coliform RuleMONBack in compliance
  16. 2016-04-01Coliform (TCR)Monitoring, Routine Major (TCR)Back in compliance
  17. 2015-04-01ArsenicMCL, Averagemeasured 0.0190 MG/L · limit 0.0100 MG/LBack in compliance
  18. 2015-01-01ArsenicMCL, Averagemeasured 0.0190 MG/L · limit 0.0100 MG/LBack in compliance
  19. 2010-10-24Groundwater Rule ×5Failure To Address DeficiencyBack in compliance
  20. 2006-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  21. 2005-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  22. 2004-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance

System details

Population served771
Service connections231
Water sourceGroundwater
System typeCommunity Water System
OwnerNative American
StatusActive
CityZia Pueblo
EPA ZIP on file87053

Areas served

    Reading this record

    Zia Pueblo is a community water system that draws from groundwater and serves about 771 people in Zia Pueblo, 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.