Community Water System · PWSID OK2001607

Cache

Serves 2,371 peopleGroundwaterOwner: Local GovernmentCache, Oklahoma
Nothing open right now.

On record since 1979: 38 violations. 19 over the limit · 14 missed or late tests · 5 notices or reports. Most recent began 2016-07-01.

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

19Over the limit
0Treatment lapse
14Missed or late test
5Notice or report

More violations on record than 60% of active water systems in Oklahoma. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

1979 · Over the limit: 11980 · Over the limit: 11980 · Missed or late test: 119801982 · Over the limit: 119851986 · Over the limit: 31986 · Over the limit: 31986 · Over the limit: 31987 · Missed or late test: 21987 · Missed or late test: 21988 · Missed or late test: 11990 · Over the limit: 119901991 · Over the limit: 31991 · Over the limit: 31991 · Over the limit: 31992 · Over the limit: 31992 · Over the limit: 31992 · Over the limit: 31994 · Over the limit: 31994 · Over the limit: 31994 · Over the limit: 31995 · Over the limit: 119951996 · Missed or late test: 11997 · Missed or late test: 21997 · Missed or late test: 21998 · Over the limit: 21998 · Over the limit: 21999 · Missed or late test: 1200020052008 · Missed or late test: 12010 · Missed or late test: 120102012 · Missed or late test: 12012 · Notice or report: 12013 · Notice or report: 12014 · Notice or report: 12015 · Missed or late test: 22015 · Missed or late test: 22015 · Notice or report: 120152016 · Missed or late test: 12016 · Notice or report: 120202025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
50% over the limit · 1937% missed or late test · 1413% notice or report · 5

Across Oklahoma, 73% of violations are missed or late tests and 19% are water over a limit.

How far over the limit

at the limit2×5×10×100×+Fluoride1982-02-02 · Fluoride: measured 4.90 vs limit 1.60 (3.1×)1979-04-25 · Fluoride: measured 2.00 vs limit 1.60 (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 3 results on file · action level 15 ppb

6.6 ppb
0 ppb
0 ppb

Every violation on record

  1. 2016-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  2. 2016-01-01Nitrate-NitriteMonitoring, RegularBack in compliance
  3. 2015-08-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  4. 2015-08-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  5. 2015-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  6. 2014-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  7. 2013-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  8. 2012-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  9. 2012-05-01E. ColiMonitoring, Source Water (GWR)Back in compliance
  10. 2010-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  11. 2008-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  12. 1999-03-01Coliform (TCR)Monitoring, Routine Major (TCR)Back in compliance
  13. 1998-11-01Coliform (TCR)MCL, Acute (TCR)Back in compliance
  14. 1998-10-01Coliform (TCR)MCL, Monthly (TCR)Back in compliance
  15. 1997-06-01Coliform (TCR)Monitoring, Routine Minor (TCR)Back in compliance
  16. 1997-03-01Coliform (TCR)Monitoring, Routine Minor (TCR)Back in compliance
  17. 1996-03-01Coliform (TCR)Monitoring, Routine Minor (TCR)Back in compliance
  18. 1995-10-01Coliform (TCR)MCL, Monthly (TCR)Back in compliance
  19. 1994-11-01Coliform (TCR)MCL, Monthly (TCR)Back in compliance
  20. 1994-09-01Coliform (TCR)MCL, Monthly (TCR)Back in compliance
  21. 1994-07-01Coliform (TCR)MCL, Monthly (TCR)Back in compliance
  22. 1992-10-01Coliform (TCR)MCL, Acute (TCR)Back in compliance
  23. 1992-09-01Coliform (TCR)MCL, Acute (TCR)Back in compliance
  24. 1992-04-01Coliform (TCR)MCL, Monthly (TCR)Back in compliance
  25. 1991-05-01Coliform (TCR)MCL, Monthly (TCR)Back in compliance
Show the other 13 entries
  1. 1991-04-01Coliform (TCR)MCL, Acute (TCR)Back in compliance
  2. 1991-01-01Coliform (TCR)MCL, Monthly (TCR)Back in compliance
  3. 1990-06-01Coliform (Pre-TCR)MCL, Averagemeasured 1.50 Back in compliance
  4. 1988-06-01Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  5. 1987-04-01Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  6. 1987-01-01Coliform (Pre-TCR)Monitoring, RegularBack in compliance
  7. 1986-11-01Coliform (Pre-TCR)MCL, Averagemeasured 20.00 Back in compliance
  8. 1986-08-01Coliform (Pre-TCR)MCL, Averagemeasured 8.00 Back in compliance
  9. 1986-07-01Coliform (Pre-TCR)MCL, Averagemeasured 9.00 Back in compliance
  10. 1982-02-02FluorideMCL, Averagemeasured 4.90 · limit 1.60 Back in compliance
  11. 1980-01-31Coliform (Pre-TCR)Monitoring, Check/Repeat/ConfirmationBack in compliance
  12. 1980-01-31Coliform (Pre-TCR)MCL, Averagemeasured 1.00 · limit 1.00 Back in compliance
  13. 1979-04-25FluorideMCL, Averagemeasured 2.00 · limit 1.60 Back in compliance

System details

Population served2,371
Service connections1,422
Water sourceGroundwater
System typeCommunity Water System
OwnerLocal Government
StatusActive
CityCache
EPA ZIP on file73527

Areas served

  • Comanche County

Reading this record

Cache is a community water system that draws from groundwater and serves about 2,371 people in Cache, Oklahoma. 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.