Community Water System · PWSID NM3519025

Sena Mdwca

Serves 180 peopleGroundwaterOwner: Local GovernmentSena, New Mexico
Nothing open right now.

On record since 1999: 62 violations. 10 treatment lapses · 15 missed or late tests · 37 notices or reports. Most recent began 2023-07-01.

None of them is a measurement of contaminated water.

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

0Over the limit
10Treatment lapse
15Missed or late test
37Notice or report

More violations on record than 87% 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

1999 · Notice or report: 120002002 · Notice or report: 12003 · Notice or report: 12004 · Notice or report: 12005 · Notice or report: 22005 · Notice or report: 220052006 · Missed or late test: 12006 · Notice or report: 12007 · Notice or report: 32007 · Notice or report: 32007 · Notice or report: 32008 · Notice or report: 12009 · Notice or report: 32009 · Notice or report: 32009 · Notice or report: 32010 · Treatment lapse: 22010 · Treatment lapse: 22010 · Missed or late test: 12010 · Notice or report: 120102011 · Notice or report: 22011 · Notice or report: 22012 · Missed or late test: 102012 · Missed or late test: 102012 · Missed or late test: 102012 · Missed or late test: 102012 · Missed or late test: 102012 · Missed or late test: 102012 · Missed or late test: 102012 · Missed or late test: 102012 · Missed or late test: 102012 · Missed or late test: 102013 · Treatment lapse: 22013 · Treatment lapse: 22014 · Notice or report: 32014 · Notice or report: 32014 · Notice or report: 32015 · Notice or report: 120152016 · Missed or late test: 22016 · Missed or late test: 22016 · Notice or report: 12017 · Treatment lapse: 52017 · Treatment lapse: 52017 · Treatment lapse: 52017 · Treatment lapse: 52017 · Treatment lapse: 52017 · Notice or report: 42017 · Notice or report: 42017 · Notice or report: 42017 · Notice or report: 42018 · Notice or report: 32018 · Notice or report: 32018 · Notice or report: 32019 · Treatment lapse: 12019 · Missed or late test: 12019 · Notice or report: 12020 · Notice or report: 42020 · Notice or report: 42020 · Notice or report: 42020 · Notice or report: 420202021 · Notice or report: 22021 · Notice or report: 22023 · Notice or report: 12025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
16% treatment lapse · 1024% missed or late test · 1560% notice or report · 37

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

Every violation on record

  1. 2023-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  2. 2021-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  3. 2021-02-20Public NoticePN Violation for NPDWR ViolationBack in compliance
  4. 2020-12-23Public NoticePN Violation for NPDWR ViolationBack in compliance
  5. 2020-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  6. 2020-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  7. 2020-03-22Public NoticePN Violation for NPDWR ViolationBack in compliance
  8. 2019-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  9. 2019-09-22Groundwater RuleFailure To Address DeficiencyBack in compliance
  10. 2019-06-27Groundwater RuleFailure to Consult with StateBack in compliance
  11. 2018-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  12. 2018-04-13Public Notice ×2PN Violation for NPDWR ViolationBack in compliance
  13. 2017-09-07Public NoticePN Violation for NPDWR ViolationBack in compliance
  14. 2017-08-02Groundwater Rule ×4Failure To Address DeficiencyBack in compliance
  15. 2017-07-28Public NoticePN Violation for NPDWR ViolationBack in compliance
  16. 2017-07-26Public NoticePN Violation for NPDWR ViolationBack in compliance
  17. 2017-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  18. 2017-05-07Groundwater RuleFailure To Address DeficiencyBack in compliance
  19. 2016-07-01Revised Total Coliform RuleMONBack in compliance
  20. 2016-06-02Revised Total Coliform RuleOtherBack in compliance
  21. 2016-06-01Revised Total Coliform RuleMONBack in compliance
  22. 2015-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  23. 2014-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  24. 2014-04-14Public NoticePN Violation for NPDWR ViolationBack in compliance
  25. 2014-01-23Public NoticePN Violation for NPDWR ViolationBack in compliance
Show the other 24 entries
  1. 2013-10-20Groundwater Rule ×2Failure To Address DeficiencyBack in compliance
  2. 2012-08-23E. Coli ×5Monitoring, Source Water (GWR)Back in compliance
  3. 2012-06-18E. Coli ×5Monitoring, Source Water (GWR)Back in compliance
  4. 2011-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  5. 2011-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  6. 2010-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  7. 2010-07-27Groundwater RuleFailure To Address DeficiencyBack in compliance
  8. 2010-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  9. 2010-05-08Groundwater RuleFailure To Address DeficiencyBack in compliance
  10. 2009-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  11. 2009-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  12. 2009-01-16Public NoticePN Violation for NPDWR ViolationBack in compliance
  13. 2008-02-20Public NoticePN Violation for NPDWR ViolationBack in compliance
  14. 2007-12-06Public NoticePN Violation for NPDWR ViolationBack in compliance
  15. 2007-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  16. 2007-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  17. 2006-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  18. 2006-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  19. 2005-10-02Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  20. 2005-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  21. 2004-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  22. 2003-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  23. 2002-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  24. 1999-10-19Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance

System details

Population served180
Service connections42
Water sourceGroundwater
System typeCommunity Water System
OwnerLocal Government
StatusActive
CitySena
EPA ZIP on file87560

Areas served

  • Sena, San Miguel County

Reading this record

Sena Mdwca is a community water system that draws from groundwater and serves about 180 people in Sena, 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.