Community Water System · PWSID WA5302777

Coxville Water Assn #1

Serves 26 peopleGroundwaterOwner: PrivateBenton City, Washington
Nothing open right now.

On record since 2006: 38 violations. 28 over the limit · 8 missed or late tests · 2 notices or reports. Most recent began 2024-01-01.

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

28Over the limit
0Treatment lapse
8Missed or late test
2Notice or report

More violations on record than 93% of active water systems in Washington. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

20052006 · Missed or late test: 120102015 · Missed or late test: 120152016 · Over the limit: 42016 · Over the limit: 42016 · Over the limit: 42016 · Over the limit: 42016 · Notice or report: 12017 · Over the limit: 32017 · Over the limit: 32017 · Over the limit: 32017 · Missed or late test: 32017 · Missed or late test: 32017 · Missed or late test: 32017 · Notice or report: 12018 · Over the limit: 32018 · Over the limit: 32018 · Over the limit: 32018 · Missed or late test: 22018 · Missed or late test: 22019 · Over the limit: 32019 · Over the limit: 32019 · Over the limit: 32019 · Missed or late test: 12020 · Over the limit: 42020 · Over the limit: 42020 · Over the limit: 42020 · Over the limit: 420202021 · Over the limit: 32021 · Over the limit: 32021 · Over the limit: 32022 · Over the limit: 32022 · Over the limit: 32022 · Over the limit: 32023 · Over the limit: 42023 · Over the limit: 42023 · Over the limit: 42023 · Over the limit: 42024 · Over the limit: 12025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
74% over the limit · 2821% missed or late test · 85% notice or report · 2

Across Washington, 88% of violations are missed or late tests and 3% are water over a limit.

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

3.9 ppb
1 ppb
0 ppb

Every violation on record

  1. 2024-01-01NitrateMCL, Single Samplemeasured 20.00 MG/LPeriod ended · no return to compliance on file
  2. 2023-04-01NitrateMCL, Single Samplemeasured 18.90 MG/LPeriod ended · no return to compliance on file
  3. 2023-01-01Nitrate ×3MCL, Single Samplemeasured 21.10 MG/LPeriod ended · no return to compliance on file
  4. 2022-04-01NitrateMCL, Single Samplemeasured 20.00 MG/LPeriod ended · no return to compliance on file
  5. 2022-01-01Nitrate ×2MCL, Single Samplemeasured 20.60 MG/LPeriod ended · no return to compliance on file
  6. 2021-04-01NitrateMCL, Single Samplemeasured 21.90 MG/LPeriod ended · no return to compliance on file
  7. 2021-01-01Nitrate ×2MCL, Single Samplemeasured 19.80 MG/LPeriod ended · no return to compliance on file
  8. 2020-04-01NitrateMCL, Single Samplemeasured 17.90 MG/LPeriod ended · no return to compliance on file
  9. 2020-01-01Nitrate ×3MCL, Single Samplemeasured 16.50 MG/LPeriod ended · no return to compliance on file
  10. 2019-10-01NitrateMonitoring, RegularBack in compliance
  11. 2019-04-01NitrateMCL, Single Samplemeasured 19.10 MG/LPeriod ended · no return to compliance on file
  12. 2019-01-01Nitrate ×2MCL, Single Samplemeasured 16.50 MG/LPeriod ended · no return to compliance on file
  13. 2018-10-01NitrateMCL, Single Samplemeasured 18.00 MG/LPeriod ended · no return to compliance on file
  14. 2018-08-01Revised Total Coliform RuleMONBack in compliance
  15. 2018-07-01NitrateMCL, Single Samplemeasured 17.50 MG/LPeriod ended · no return to compliance on file
  16. 2018-04-01NitrateMonitoring, RegularBack in compliance
  17. 2018-01-01NitrateMCL, Single Samplemeasured 17.10 MG/LPeriod ended · no return to compliance on file
  18. 2017-12-01Revised Total Coliform RuleMONBack in compliance
  19. 2017-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  20. 2017-05-01Revised Total Coliform RuleMONBack in compliance
  21. 2017-04-01NitrateMonitoring, RegularBack in compliance
  22. 2017-01-01Nitrate ×3MCL, Single Samplemeasured 16.30 MG/LPeriod ended · no return to compliance on file
  23. 2016-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  24. 2016-01-01Nitrate ×4MCL, Single Samplemeasured 15.40 MG/LPeriod ended · no return to compliance on file
  25. 2015-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
Show the other 1 entries
  1. 2006-07-01Lead and Copper RuleInitial Tap Sampling for Pb and CuBack in compliance

System details

Population served26
Service connections13
Water sourceGroundwater
System typeCommunity Water System
OwnerPrivate
StatusActive
CityBenton City
EPA ZIP on file99320

Areas served

  • Benton County

Reading this record

Coxville Water Assn #1 is a community water system that draws from groundwater and serves about 26 people in Benton City, Washington. 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.