Non-Transient Non-Community · PWSID CO0238002

Caliche School

Serves 350 peopleGroundwaterOwner: Local GovernmentWindsor, ColoradoServes a school or daycare
Nothing open right now.

On record since 2013: 23 violations. 5 over the limit · 2 treatment lapses · 16 missed or late tests. Most recent began 2020-04-01.

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

5Over the limit
2Treatment lapse
16Missed or late test
0Notice or report

More violations on record than 83% 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

200520102013 · Missed or late test: 12014 · Treatment lapse: 12014 · Missed or late test: 32014 · Missed or late test: 32014 · Missed or late test: 32015 · Missed or late test: 32015 · Missed or late test: 32015 · Missed or late test: 320152016 · Missed or late test: 32016 · Missed or late test: 32016 · Missed or late test: 32017 · Over the limit: 12017 · Treatment lapse: 12017 · Missed or late test: 52017 · Missed or late test: 52017 · Missed or late test: 52017 · Missed or late test: 52017 · Missed or late test: 52019 · Over the limit: 22019 · Over the limit: 22019 · Missed or late test: 12020 · Over the limit: 22020 · Over the limit: 220202025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
22% over the limit · 59% treatment lapse · 270% missed or late test · 16

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×+Trihalomethanes (TTHM)2020-04-01 · Trihalomethanes (TTHM): measured 0.1170 MG/L vs limit 0.0800 MG/L (1.5×)2020-01-01 · Trihalomethanes (TTHM): measured 0.1510 MG/L vs limit 0.0800 MG/L (1.9×)2019-10-01 · Trihalomethanes (TTHM): measured 0.1590 MG/L vs limit 0.0800 MG/L (2.0×)2019-07-01 · Trihalomethanes (TTHM): measured 0.1270 MG/L vs limit 0.0800 MG/L (1.6×)2017-10-01 · Trihalomethanes (TTHM): measured 0.0893 MG/L vs limit 0.0800 MG/L (1.1×)
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 19 results on file · action level 15 ppb

14 ppb
8 ppb
7 ppb
7 ppb
4.3 ppb
3 ppb
3 ppb
3 ppb
3 ppb
2 ppb
2 ppb
2 ppb
2 ppb
2 ppb
2 ppb
2 ppb
1 ppb
0 ppb
0 ppb

Every violation on record

  1. 2020-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1170 MG/L · limit 0.0800 MG/LBack in compliance
  2. 2020-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1510 MG/L · limit 0.0800 MG/LBack in compliance
  3. 2019-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1590 MG/L · limit 0.0800 MG/LBack in compliance
  4. 2019-10-01Lead and Copper RuleLead Consumer NoticeBack in compliance
  5. 2019-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1270 MG/L · limit 0.0800 MG/LBack in compliance
  6. 2017-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0893 MG/L · limit 0.0800 MG/LBack in compliance
  7. 2017-04-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  8. 2017-04-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  9. 2017-04-01Revised Total Coliform RuleMONBack in compliance
  10. 2017-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  11. 2017-01-30Revised Total Coliform RuleTTBack in compliance
  12. 2017-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  13. 2016-12-25E. ColiMonitoring, Source Water (GWR)Back in compliance
  14. 2016-11-07Trihalomethanes (TTHM)Failure Submit IDSE/Subpart V Plan RptBack in compliance
  15. 2016-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  16. 2015-10-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  17. 2015-10-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  18. 2015-05-01Lead and Copper RuleWater Quality Parameter M/RBack in compliance
  19. 2014-09-01Lead and Copper RuleWater Quality Parameter M/RBack in compliance
  20. 2014-03-01Lead and Copper RuleOCCT/SOWT Study/RecommendationBack in compliance
  21. 2014-03-01Lead and Copper RuleInitial, Follow-up, or Routine Source Water M/RBack in compliance
  22. 2014-01-01Lead and Copper RuleWater Quality Parameter M/RBack in compliance
  23. 2013-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance

System details

Population served350
Service connections4
Water sourceGroundwater
System typeNon-Transient Non-Community
OwnerLocal Government
StatusActive
CityWindsor
EPA ZIP on file80550

Areas served

  • Logan County

Reading this record

Caliche School is a non-transient non-community that draws from groundwater and serves about 350 people in Windsor, 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.