Community Water System · PWSID NM3501223

Desert Sky Mountain Water Cooperative

Serves 187 peopleGroundwaterOwner: PrivatePlacitas, New Mexico
Nothing open that measures the water, but 8 open testing or paperwork violations.

A missed test is not evidence of bad water. It also is not evidence of good water: for that period nobody checked.

On record since 2007: 64 violations. 40 over the limit · 3 treatment lapses · 15 missed or late tests · 6 notices or reports. Most recent began 2025-07-01.

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

40Over the limit
3Treatment lapse
15Missed or late test8 open
6Notice or report

More violations on record than 88% 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

20052007 · Over the limit: 22007 · Over the limit: 22007 · Missed or late test: 22007 · Missed or late test: 22008 · Over the limit: 62008 · Over the limit: 62008 · Over the limit: 62008 · Over the limit: 62008 · Over the limit: 62008 · Over the limit: 62008 · Missed or late test: 12008 · Notice or report: 12009 · Over the limit: 52009 · Over the limit: 52009 · Over the limit: 52009 · Over the limit: 52009 · Over the limit: 52009 · Notice or report: 22009 · Notice or report: 22010 · Over the limit: 42010 · Over the limit: 42010 · Over the limit: 42010 · Over the limit: 42010 · Missed or late test: 120102011 · Over the limit: 42011 · Over the limit: 42011 · Over the limit: 42011 · Over the limit: 42011 · Missed or late test: 12012 · Over the limit: 42012 · Over the limit: 42012 · Over the limit: 42012 · Over the limit: 42012 · Notice or report: 22012 · Notice or report: 22013 · Over the limit: 42013 · Over the limit: 42013 · Over the limit: 42013 · Over the limit: 42014 · Over the limit: 32014 · Over the limit: 32014 · Over the limit: 32014 · Missed or late test: 52014 · Missed or late test: 52014 · Missed or late test: 52014 · Missed or late test: 52014 · Missed or late test: 520152016 · Treatment lapse: 22016 · Treatment lapse: 22017 · Missed or late test: 12020 · Missed or late test: 120202023 · Over the limit: 12023 · Missed or late test: 12024 · Over the limit: 42024 · Over the limit: 42024 · Over the limit: 42024 · Over the limit: 42024 · Treatment lapse: 12024 · Missed or late test: 12024 · Notice or report: 12025 · Over the limit: 32025 · Over the limit: 32025 · Over the limit: 32025 · Missed or late test: 12025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
63% over the limit · 405% treatment lapse · 323% missed or late test · 159% 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×+Arsenic2025-07-01 · Arsenic: measured 0.0360 MG/L vs limit 0.0100 MG/L (3.6×)2025-04-01 · Arsenic: measured 0.0340 MG/L vs limit 0.0100 MG/L (3.4×)2025-01-01 · Arsenic: measured 0.0330 MG/L vs limit 0.0100 MG/L (3.3×)2024-10-01 · Arsenic: measured 0.0310 MG/L vs limit 0.0100 MG/L (3.1×)2024-07-01 · Arsenic: measured 0.0310 MG/L vs limit 0.0100 MG/L (3.1×)2024-04-01 · Arsenic: measured 0.0330 MG/L vs limit 0.0100 MG/L (3.3×)2024-01-01 · Arsenic: measured 0.0250 MG/L vs limit 0.0100 MG/L (2.5×)2023-10-01 · Arsenic: measured 0.0170 MG/L vs limit 0.0100 MG/L (1.7×)2014-07-01 · Arsenic: measured 0.0170 MG/L vs limit 0.0100 MG/L (1.7×)2014-04-01 · Arsenic: measured 0.0180 MG/L vs limit 0.0100 MG/L (1.8×)2014-01-01 · Arsenic: measured 0.0200 MG/L vs limit 0.0100 MG/L (2.0×)2013-10-01 · Arsenic: measured 0.0250 MG/L vs limit 0.0100 MG/L (2.5×)2013-07-01 · Arsenic: measured 0.0170 MG/L vs limit 0.0100 MG/L (1.7×)2013-04-01 · Arsenic: measured 0.0160 MG/L vs limit 0.0100 MG/L (1.6×)2013-01-01 · Arsenic: measured 0.0150 MG/L vs limit 0.0100 MG/L (1.5×)2012-10-01 · Arsenic: measured 0.0110 MG/L vs limit 0.0100 MG/L (1.1×)2012-07-01 · Arsenic: measured 0.0200 MG/L vs limit 0.0100 MG/L (2.0×)2012-04-01 · Arsenic: measured 0.0290 MG/L vs limit 0.0100 MG/L (2.9×)2012-01-01 · Arsenic: measured 0.0380 MG/L vs limit 0.0100 MG/L (3.8×)2011-10-01 · Arsenic: measured 0.0460 MG/L vs limit 0.0100 MG/L (4.6×)2011-07-01 · Arsenic: measured 0.0450 MG/L vs limit 0.0100 MG/L (4.5×)2011-04-01 · Arsenic: measured 0.0440 MG/L vs limit 0.0100 MG/L (4.4×)2011-01-01 · Arsenic: measured 0.0420 MG/L vs limit 0.0100 MG/L (4.2×)2010-10-01 · Arsenic: measured 0.0400 MG/L vs limit 0.0100 MG/L (4.0×)2010-07-01 · Arsenic: measured 0.0400 MG/L vs limit 0.0100 MG/L (4.0×)2010-04-01 · Arsenic: measured 0.0410 MG/L vs limit 0.0100 MG/L (4.1×)2010-01-01 · Arsenic: measured 0.0430 MG/L vs limit 0.0100 MG/L (4.3×)2009-10-01 · Arsenic: measured 0.0440 MG/L vs limit 0.0100 MG/L (4.4×)2009-07-01 · Arsenic: measured 0.0470 MG/L vs limit 0.0100 MG/L (4.7×)2009-01-01 · Arsenic: measured 0.0500 MG/L vs limit 0.0100 MG/L (5.0×)2009-01-01 · Arsenic: measured 0.0450 MG/L vs limit 0.0100 MG/L (4.5×)2009-01-01 · Arsenic: measured 0.0475 MG/L vs limit 0.0100 MG/L (4.8×)2008-10-01 · Arsenic: measured 0.0500 MG/L vs limit 0.0100 MG/L (5.0×)2008-10-01 · Arsenic: measured 0.0450 MG/L vs limit 0.0100 MG/L (4.5×)2008-07-01 · Arsenic: measured 0.0370 MG/L vs limit 0.0100 MG/L (3.7×)2008-07-01 · Arsenic: measured 0.0360 MG/L vs limit 0.0100 MG/L (3.6×)2008-04-01 · Arsenic: measured 0.0250 MG/L vs limit 0.0100 MG/L (2.5×)2008-04-01 · Arsenic: measured 0.0240 MG/L vs limit 0.0100 MG/L (2.4×)2007-10-01 · Arsenic: measured 0.0120 MG/L vs limit 0.0100 MG/L (1.2×)2007-10-01 · Arsenic: measured 0.0120 MG/L vs limit 0.0100 MG/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 5 results on file · action level 15 ppb

8 ppb
7.1 ppb
5.8 ppb
2.3 ppb
2 ppb

Open now (8)

  1. 2025-04-01Lead and Copper RuleLead Consumer NoticeOpen
  2. 2024-09-29Lead and Copper RuleLead Consumer NoticeOpen
  3. 2023-12-30Lead and Copper RuleLead Consumer NoticeOpen
  4. 2020-12-30Lead and Copper RuleLead Consumer NoticeOpen
  5. 2017-12-30Lead and Copper RuleLead Consumer NoticeOpen
  6. 2014-12-30Lead and Copper RuleLead Consumer NoticeOpen
  7. 2011-12-30Lead and Copper RuleLead Consumer NoticeOpen
  8. 2010-12-30Lead and Copper RuleLead Consumer NoticeOpen

Every violation on record

  1. 2025-07-01ArsenicMCL, Averagemeasured 0.0360 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  2. 2025-04-01Lead and Copper RuleLead Consumer NoticeOpen
  3. 2025-04-01ArsenicMCL, Averagemeasured 0.0340 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  4. 2025-01-01ArsenicMCL, Averagemeasured 0.0330 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  5. 2024-10-17Lead service line inventoryRPTBack in compliance
  6. 2024-10-17Lead service line inventoryTTBack in compliance
  7. 2024-10-01ArsenicMCL, Averagemeasured 0.0310 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  8. 2024-09-29Lead and Copper RuleLead Consumer NoticeOpen
  9. 2024-07-01ArsenicMCL, Averagemeasured 0.0310 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  10. 2024-04-01ArsenicMCL, Averagemeasured 0.0330 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  11. 2024-01-01ArsenicMCL, Averagemeasured 0.0250 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  12. 2023-12-30Lead and Copper RuleLead Consumer NoticeOpen
  13. 2023-10-01ArsenicMCL, Averagemeasured 0.0170 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  14. 2020-12-30Lead and Copper RuleLead Consumer NoticeOpen
  15. 2017-12-30Lead and Copper RuleLead Consumer NoticeOpen
  16. 2016-04-30Groundwater Rule ×2Failure To Address DeficiencyBack in compliance
  17. 2014-12-30Lead and Copper RuleLead Consumer NoticeOpen
  18. 2014-08-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  19. 2014-08-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  20. 2014-07-01ArsenicMCL, Averagemeasured 0.0170 MG/L · limit 0.0100 MG/LBack in compliance
  21. 2014-04-01ArsenicMCL, Averagemeasured 0.0180 MG/L · limit 0.0100 MG/LBack in compliance
  22. 2014-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  23. 2014-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  24. 2014-01-01ArsenicMCL, Averagemeasured 0.0200 MG/L · limit 0.0100 MG/LBack in compliance
  25. 2013-10-01ArsenicMCL, Averagemeasured 0.0250 MG/L · limit 0.0100 MG/LBack in compliance
Show the other 32 entries
  1. 2013-07-01ArsenicMCL, Averagemeasured 0.0170 MG/L · limit 0.0100 MG/LBack in compliance
  2. 2013-04-01ArsenicMCL, Averagemeasured 0.0160 MG/L · limit 0.0100 MG/LBack in compliance
  3. 2013-01-01ArsenicMCL, Averagemeasured 0.0150 MG/L · limit 0.0100 MG/LBack in compliance
  4. 2012-11-04Public NoticePN Violation for NPDWR ViolationBack in compliance
  5. 2012-10-01ArsenicMCL, Averagemeasured 0.0110 MG/L · limit 0.0100 MG/LBack in compliance
  6. 2012-07-01ArsenicMCL, Averagemeasured 0.0200 MG/L · limit 0.0100 MG/LBack in compliance
  7. 2012-04-01ArsenicMCL, Averagemeasured 0.0290 MG/L · limit 0.0100 MG/LBack in compliance
  8. 2012-02-12Public NoticePN Violation for NPDWR ViolationBack in compliance
  9. 2012-01-01ArsenicMCL, Averagemeasured 0.0380 MG/L · limit 0.0100 MG/LBack in compliance
  10. 2011-12-30Lead and Copper RuleLead Consumer NoticeOpen
  11. 2011-10-01ArsenicMCL, Averagemeasured 0.0460 MG/L · limit 0.0100 MG/LBack in compliance
  12. 2011-07-01ArsenicMCL, Averagemeasured 0.0450 MG/L · limit 0.0100 MG/LBack in compliance
  13. 2011-04-01ArsenicMCL, Averagemeasured 0.0440 MG/L · limit 0.0100 MG/LBack in compliance
  14. 2011-01-01ArsenicMCL, Averagemeasured 0.0420 MG/L · limit 0.0100 MG/LBack in compliance
  15. 2010-12-30Lead and Copper RuleLead Consumer NoticeOpen
  16. 2010-10-01ArsenicMCL, Averagemeasured 0.0400 MG/L · limit 0.0100 MG/LBack in compliance
  17. 2010-07-01ArsenicMCL, Averagemeasured 0.0400 MG/L · limit 0.0100 MG/LBack in compliance
  18. 2010-04-01ArsenicMCL, Averagemeasured 0.0410 MG/L · limit 0.0100 MG/LBack in compliance
  19. 2010-01-01ArsenicMCL, Averagemeasured 0.0430 MG/L · limit 0.0100 MG/LBack in compliance
  20. 2009-10-01ArsenicMCL, Averagemeasured 0.0440 MG/L · limit 0.0100 MG/LBack in compliance
  21. 2009-07-01ArsenicMCL, Averagemeasured 0.0470 MG/L · limit 0.0100 MG/LBack in compliance
  22. 2009-05-21Public NoticePN Violation for NPDWR ViolationBack in compliance
  23. 2009-03-16Public NoticePN Violation for NPDWR ViolationBack in compliance
  24. 2009-01-01Arsenic ×3MCL, Averagemeasured 0.0500 MG/L · limit 0.0100 MG/LBack in compliance
  25. 2008-12-05Public NoticePN Violation for NPDWR ViolationBack in compliance
  26. 2008-10-01Arsenic ×2MCL, Averagemeasured 0.0500 MG/L · limit 0.0100 MG/LBack in compliance
  27. 2008-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  28. 2008-07-01Arsenic ×2MCL, Averagemeasured 0.0370 MG/L · limit 0.0100 MG/LBack in compliance
  29. 2008-04-01Arsenic ×2MCL, Single Samplemeasured 0.0250 MG/L · limit 0.0100 MG/LBack in compliance
  30. 2007-10-01Arsenic ×2MCL, Averagemeasured 0.0120 MG/L · limit 0.0100 MG/LBack in compliance
  31. 2007-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  32. 2007-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance

System details

Population served187
Service connections66
Water sourceGroundwater
System typeCommunity Water System
OwnerPrivate
StatusActive
CityPlacitas
EPA ZIP on file87043

Areas served

  • Placitas, Sandoval County

Reading this record

Desert Sky Mountain Water Cooperative is a community water system that draws from groundwater and serves about 187 people in Placitas, 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.