Community Water System · PWSID NM3500324

Rosa Joint Ventures Water System

Serves 239 peopleGroundwaterOwner: PrivateIgnacio, Colorado
Nothing open that measures the water, but 2 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 1999: 70 violations. 5 over the limit · 21 treatment lapses · 21 missed or late tests · 23 notices or reports. Most recent began 2023-08-17.

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

5Over the limit
21Treatment lapse
21Missed or late test
23Notice or report2 open

More violations on record than 94% of active water systems in Colorado. 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: 120002005 · Missed or late test: 1200520102013 · Missed or late test: 12014 · Missed or late test: 62014 · Missed or late test: 62014 · Missed or late test: 620152016 · Missed or late test: 32016 · Missed or late test: 32016 · Notice or report: 22017 · Treatment lapse: 152017 · Treatment lapse: 152017 · Treatment lapse: 152017 · Treatment lapse: 152017 · Treatment lapse: 152017 · Treatment lapse: 152017 · Treatment lapse: 152017 · Treatment lapse: 152017 · Notice or report: 62017 · Notice or report: 62017 · Notice or report: 62018 · Missed or late test: 12018 · Notice or report: 22019 · Missed or late test: 32019 · Missed or late test: 32020 · Over the limit: 42020 · Over the limit: 42020 · Treatment lapse: 42020 · Treatment lapse: 42020 · Missed or late test: 12020 · Notice or report: 32020 · Notice or report: 320202021 · Over the limit: 12021 · Missed or late test: 42021 · Missed or late test: 42021 · Notice or report: 42021 · Notice or report: 42022 · Notice or report: 42022 · Notice or report: 42023 · Treatment lapse: 22023 · Missed or late test: 12023 · Notice or report: 12025
One square ≈ 2 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
7% over the limit · 530% treatment lapse · 2130% missed or late test · 2133% notice or report · 23

Across Colorado, 74% 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×+Selenium2021-10-01 · Selenium: measured 0.0600 MG/L vs limit 0.0500 MG/L (1.2×)2020-07-01 · Selenium: measured 0.0700 MG/L vs limit 0.0500 MG/L (1.4×)2020-04-01 · Selenium: measured 0.0600 MG/L vs limit 0.0500 MG/L (1.2×)2020-01-01 · Selenium: measured 0.0600 MG/L vs limit 0.0500 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 2 results on file · action level 15 ppb

2 ppb
0 ppb

Open now (2)

  1. 2021-01-09Public NoticePN Violation for NPDWR ViolationOpen
  2. 1999-10-19Consumer Confidence RuleCCR Complete Failure to ReportOpen

Every violation on record

  1. 2023-08-17E. ColiMonitoring, Source Water (GWR)Back in compliance
  2. 2023-08-09Groundwater Rule ×2Failure To Address DeficiencyBack in compliance
  3. 2023-03-22Public NoticePN Violation for NPDWR ViolationBack in compliance
  4. 2022-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  5. 2022-04-01Public NoticePN Violation without NPDWR ViolationBack in compliance
  6. 2022-03-13Public NoticePN Violation for NPDWR ViolationBack in compliance
  7. 2022-01-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  8. 2021-12-10Public NoticePN Violation for NPDWR ViolationBack in compliance
  9. 2021-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  10. 2021-10-01SeleniumMCL, Averagemeasured 0.0600 MG/L · limit 0.0500 MG/LBack in compliance
  11. 2021-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  12. 2021-08-25E. ColiMonitoring, Source Water (GWR)Back in compliance
  13. 2021-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  14. 2021-04-01Revised Total Coliform RuleMONBack in compliance
  15. 2021-01-09Public NoticePN Violation for NPDWR ViolationOpen
  16. 2021-01-01Revised Total Coliform RuleMONBack in compliance
  17. 2020-12-22Revised Total Coliform RuleTTBack in compliance
  18. 2020-12-21Public NoticePN Violation for NPDWR ViolationBack in compliance
  19. 2020-07-01SeleniumMCL, Averagemeasured 0.0700 MG/L · limit 0.0500 MG/LBack in compliance
  20. 2020-06-11Groundwater Rule ×3Failure To Address DeficiencyBack in compliance
  21. 2020-06-01Revised Total Coliform RuleMCLBack in compliance
  22. 2020-05-11Public NoticePN Violation for NPDWR ViolationBack in compliance
  23. 2020-04-01SeleniumMCL, Averagemeasured 0.0600 MG/L · limit 0.0500 MG/LBack in compliance
  24. 2020-04-01SeleniumMonitoring, RegularBack in compliance
  25. 2020-02-28Public NoticePN Violation without NPDWR ViolationBack in compliance
Show the other 23 entries
  1. 2020-01-01SeleniumMCL, Averagemeasured 0.0600 MG/L · limit 0.0500 MG/LBack in compliance
  2. 2019-05-25E. ColiMonitoring, Source Water (GWR)Back in compliance
  3. 2019-02-01Revised Total Coliform RuleMONBack in compliance
  4. 2019-01-01Revised Total Coliform RuleMONBack in compliance
  5. 2018-12-01Revised Total Coliform RuleMONBack in compliance
  6. 2018-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  7. 2018-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  8. 2017-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  9. 2017-09-25Public Notice ×3PN Violation for NPDWR ViolationBack in compliance
  10. 2017-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  11. 2017-06-18Public NoticePN Violation for NPDWR ViolationBack in compliance
  12. 2017-06-10Groundwater Rule ×15Failure To Address DeficiencyBack in compliance
  13. 2016-08-01Revised Total Coliform RuleMONBack in compliance
  14. 2016-07-01Revised Total Coliform RuleMONBack in compliance
  15. 2016-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  16. 2016-06-02Revised Total Coliform RuleOtherBack in compliance
  17. 2016-06-01Revised Total Coliform RuleMONBack in compliance
  18. 2014-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  19. 2014-07-05E. Coli ×4Monitoring, Source Water (GWR)Back in compliance
  20. 2014-06-06E. ColiMonitoring, Source Water (GWR)Back in compliance
  21. 2013-07-01SeleniumMonitoring, RegularBack in compliance
  22. 2005-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  23. 1999-10-19Consumer Confidence RuleCCR Complete Failure to ReportOpen

System details

Population served239
Service connections82
Water sourceGroundwater
System typeCommunity Water System
OwnerPrivate
StatusActive
CityIgnacio
EPA ZIP on file81137

Areas served

  • Aztec, San Juan County

Reading this record

Rosa Joint Ventures Water System is a community water system that draws from groundwater and serves about 239 people in Ignacio, Colorado. 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.