Non-Transient Non-Community · PWSID OR4190889

Annex Charter School

Serves 50 peopleGroundwaterOwner: Local GovernmentOntario, OregonServes a school or daycare
Nothing open right now.

On record since 1994: 38 violations. 12 over the limit · 1 treatment lapse · 10 missed or late tests · 15 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.

12Over the limit
1Treatment lapse
10Missed or late test
15Notice or report

More violations on record than 88% of active water systems in Oregon. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

1994 · Missed or late test: 1199520002002 · Treatment lapse: 1200520102012 · Notice or report: 42012 · Notice or report: 42012 · Notice or report: 42012 · Notice or report: 42013 · Notice or report: 42013 · Notice or report: 42013 · Notice or report: 42013 · Notice or report: 42014 · Over the limit: 42014 · Over the limit: 42014 · Over the limit: 42014 · Over the limit: 42014 · Notice or report: 22014 · Notice or report: 22015 · Over the limit: 42015 · Over the limit: 42015 · Over the limit: 42015 · Over the limit: 42015 · Notice or report: 32015 · Notice or report: 32015 · Notice or report: 320152016 · Over the limit: 32016 · Over the limit: 32016 · Over the limit: 32016 · Notice or report: 22016 · Notice or report: 22017 · Over the limit: 12017 · Missed or late test: 22017 · Missed or late test: 22019 · Missed or late test: 120202021 · Missed or late test: 12022 · Missed or late test: 22022 · Missed or late test: 22023 · Missed or late test: 22023 · Missed or late test: 22024 · Missed or late test: 12025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
32% over the limit · 123% treatment lapse · 126% missed or late test · 1039% notice or report · 15

Across Oregon, 85% of violations are missed or late tests and 2% are water over a limit.

How far over the limit

at the limit2×5×10×100×+Arsenic2017-01-01 · Arsenic: measured 0.0110 MG/L vs limit 0.0100 MG/L (1.1×)2016-07-01 · Arsenic: measured 0.0160 MG/L vs limit 0.0100 MG/L (1.6×)2016-04-01 · Arsenic: measured 0.0160 MG/L vs limit 0.0100 MG/L (1.6×)2016-01-01 · Arsenic: measured 0.0140 MG/L vs limit 0.0100 MG/L (1.4×)2015-10-01 · Arsenic: measured 0.0190 MG/L vs limit 0.0100 MG/L (1.9×)2015-07-01 · Arsenic: measured 0.0140 MG/L vs limit 0.0100 MG/L (1.4×)2015-04-01 · Arsenic: measured 0.0120 MG/L vs limit 0.0100 MG/L (1.2×)2015-01-01 · Arsenic: measured 0.0150 MG/L vs limit 0.0100 MG/L (1.5×)2014-10-01 · Arsenic: measured 0.0140 MG/L vs limit 0.0100 MG/L (1.4×)2014-07-01 · Arsenic: measured 0.0140 MG/L vs limit 0.0100 MG/L (1.4×)2014-04-01 · Arsenic: measured 0.0130 MG/L vs limit 0.0100 MG/L (1.3×)2014-01-01 · Arsenic: measured 0.0140 MG/L vs limit 0.0100 MG/L (1.4×)
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 4 results on file · action level 15 ppb

4.9 ppb
3.6 ppb
3.2 ppb
1.6 ppb

Every violation on record

  1. 2024-01-01ArsenicMonitoring, RegularBack in compliance
  2. 2023-01-01NitrateMonitoring, RegularBack in compliance
  3. 2023-01-01ArsenicMonitoring, RegularBack in compliance
  4. 2022-10-01Revised Total Coliform RuleMONBack in compliance
  5. 2022-01-01ColiphageFailure to Conduct Assessment MonitoringPeriod ended · no return to compliance on file
  6. 2021-07-01ArsenicMonitoring, RegularBack in compliance
  7. 2019-04-01ArsenicMonitoring, RegularBack in compliance
  8. 2017-07-01ArsenicMonitoring, RegularBack in compliance
  9. 2017-04-01Revised Total Coliform RuleMONBack in compliance
  10. 2017-01-01ArsenicMCL, Averagemeasured 0.0110 MG/L · limit 0.0100 MG/LBack in compliance
  11. 2016-08-27Public NoticePN Violation for NPDWR ViolationBack in compliance
  12. 2016-07-01ArsenicMCL, Averagemeasured 0.0160 MG/L · limit 0.0100 MG/LBack in compliance
  13. 2016-05-30Public NoticePN Violation for NPDWR ViolationBack in compliance
  14. 2016-04-01ArsenicMCL, Averagemeasured 0.0160 MG/L · limit 0.0100 MG/LBack in compliance
  15. 2016-01-01ArsenicMCL, Averagemeasured 0.0140 MG/L · limit 0.0100 MG/LBack in compliance
  16. 2015-11-21Public NoticePN Violation for NPDWR ViolationBack in compliance
  17. 2015-10-01ArsenicMCL, Averagemeasured 0.0190 MG/L · limit 0.0100 MG/LBack in compliance
  18. 2015-07-01ArsenicMCL, Averagemeasured 0.0140 MG/L · limit 0.0100 MG/LBack in compliance
  19. 2015-05-28Public NoticePN Violation for NPDWR ViolationBack in compliance
  20. 2015-04-01ArsenicMCL, Averagemeasured 0.0120 MG/L · limit 0.0100 MG/LBack in compliance
  21. 2015-03-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  22. 2015-01-01ArsenicMCL, Averagemeasured 0.0150 MG/L · limit 0.0100 MG/LBack in compliance
  23. 2014-10-01ArsenicMCL, Averagemeasured 0.0140 MG/L · limit 0.0100 MG/LBack in compliance
  24. 2014-08-25Public NoticePN Violation for NPDWR ViolationBack in compliance
  25. 2014-07-01ArsenicMCL, Averagemeasured 0.0140 MG/L · limit 0.0100 MG/LBack in compliance
Show the other 13 entries
  1. 2014-05-18Public NoticePN Violation for NPDWR ViolationBack in compliance
  2. 2014-04-01ArsenicMCL, Averagemeasured 0.0130 MG/L · limit 0.0100 MG/LBack in compliance
  3. 2014-01-01ArsenicMCL, Averagemeasured 0.0140 MG/L · limit 0.0100 MG/LBack in compliance
  4. 2013-12-23Public NoticePN Violation for NPDWR ViolationBack in compliance
  5. 2013-11-11Public NoticePN Violation for NPDWR ViolationBack in compliance
  6. 2013-03-14Public NoticePN Violation for NPDWR ViolationBack in compliance
  7. 2013-03-03Public NoticePN Violation for NPDWR ViolationBack in compliance
  8. 2012-12-28Public NoticePN Violation for NPDWR ViolationBack in compliance
  9. 2012-08-20Public NoticePN Violation for NPDWR ViolationBack in compliance
  10. 2012-05-24Public NoticePN Violation for NPDWR ViolationBack in compliance
  11. 2012-03-12Public NoticePN Violation for NPDWR ViolationBack in compliance
  12. 2002-01-02Lead and Copper RuleOCCT/SOWT Treatment Installation/DemonstrationBack in compliance
  13. 1994-07-01Lead and Copper RuleInitial Tap Sampling for Pb and CuBack in compliance

System details

Population served50
Service connections1
Water sourceGroundwater
System typeNon-Transient Non-Community
OwnerLocal Government
StatusActive
CityOntario
EPA ZIP on file97914

Areas served

  • Malheur County

Reading this record

Annex Charter School is a non-transient non-community that draws from groundwater and serves about 50 people in Ontario, Oregon. 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.