Community Water System · PWSID PA1460064

Yerkes Water Association

Serves 165 peopleGroundwaterOwner: PrivateCollegeville, Pennsylvania
Nothing open right now.

On record since 1999: 34 violations. 9 treatment lapses · 17 missed or late tests · 8 notices or reports. Most recent began 2025-08-13.

None of them is a measurement of contaminated water.

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

0Over the limit
9Treatment lapse
17Missed or late test
8Notice or report

More violations on record than 82% of active water systems in Pennsylvania. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

1999 · Missed or late test: 120002003 · Notice or report: 1200520102013 · Missed or late test: 22013 · Missed or late test: 22013 · Notice or report: 120152016 · Treatment lapse: 12016 · Missed or late test: 22016 · Missed or late test: 22016 · Notice or report: 12017 · Treatment lapse: 12017 · Notice or report: 22017 · Notice or report: 22018 · Treatment lapse: 22018 · Treatment lapse: 22018 · Missed or late test: 42018 · Missed or late test: 42018 · Missed or late test: 42018 · Missed or late test: 42019 · Treatment lapse: 32019 · Treatment lapse: 32019 · Treatment lapse: 32019 · Missed or late test: 12019 · Notice or report: 22019 · Notice or report: 22020 · Missed or late test: 22020 · Missed or late test: 220202022 · Missed or late test: 42022 · Missed or late test: 42022 · Missed or late test: 42022 · Missed or late test: 42025 · Treatment lapse: 22025 · Treatment lapse: 22025 · Missed or late test: 12025 · Notice or report: 12025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
26% treatment lapse · 950% missed or late test · 1724% notice or report · 8

Across Pennsylvania, 71% of violations are missed or late tests and 2% are water over a limit.

Every violation on record

  1. 2025-08-13Public NoticePN Violation for NPDWR ViolationBack in compliance
  2. 2025-08-01Groundwater RuleTreatment Technique (SWTR and GWR)Back in compliance
  3. 2025-07-01Groundwater RuleMonitoring of Treatment (SWTR-Unfilt/GWR)Back in compliance
  4. 2025-07-01Groundwater RuleTreatment Technique (SWTR and GWR)Period ended · no return to compliance on file
  5. 2022-10-01Radium-228Monitoring, RegularBack in compliance
  6. 2022-10-01Radium-226Monitoring, RegularBack in compliance
  7. 2022-07-01Groundwater RuleMonitoring of Treatment (SWTR-Unfilt/GWR)Back in compliance
  8. 2022-04-01Groundwater RuleMonitoring of Treatment (SWTR-Unfilt/GWR)Back in compliance
  9. 2020-07-01Groundwater RuleMonitoring of Treatment (SWTR-Unfilt/GWR)Back in compliance
  10. 2020-06-01Groundwater RuleMonitoring of Treatment (SWTR-Unfilt/GWR)Back in compliance
  11. 2019-09-01Groundwater RuleTreatment Technique (SWTR and GWR)Back in compliance
  12. 2019-03-13Public NoticePN Violation for NPDWR ViolationBack in compliance
  13. 2019-03-01Groundwater RuleTreatment Technique (SWTR and GWR)Back in compliance
  14. 2019-03-01Groundwater RuleMonitoring of Treatment (SWTR-Unfilt/GWR)Back in compliance
  15. 2019-01-13Public NoticePN Violation for NPDWR ViolationBack in compliance
  16. 2019-01-01Groundwater RuleTreatment Technique (SWTR and GWR)Back in compliance
  17. 2018-07-01Groundwater RuleTreatment Technique (SWTR and GWR)Back in compliance
  18. 2018-06-01Groundwater RuleTreatment Technique (SWTR and GWR)Back in compliance
  19. 2018-04-01Groundwater RuleMonitoring of Treatment (SWTR-Unfilt/GWR)Back in compliance
  20. 2018-02-01Groundwater RuleMonitoring of Treatment (SWTR-Unfilt/GWR)Back in compliance
  21. 2018-01-01Benzo(a)pyrene ×2Monitoring, RegularBack in compliance
  22. 2017-04-11Public NoticePN Violation for NPDWR ViolationBack in compliance
  23. 2017-02-13Public NoticePN Violation for NPDWR ViolationBack in compliance
  24. 2017-02-01Groundwater RuleTreatment Technique (SWTR and GWR)Back in compliance
  25. 2016-09-01Groundwater RuleTreatment Technique (SWTR and GWR)Back in compliance
Show the other 8 entries
  1. 2016-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  2. 2016-04-01Di(2-ethylhexyl) phthalateMonitoring, RegularBack in compliance
  3. 2016-03-01Coliform (TCR)Monitoring, Routine Major (TCR)Back in compliance
  4. 2013-09-11E. ColiMonitoring, Source Water (GWR)Back in compliance
  5. 2013-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  6. 2013-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  7. 2003-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  8. 1999-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance

System details

Population served165
Service connections59
Water sourceGroundwater
System typeCommunity Water System
OwnerPrivate
StatusActive
CityCollegeville
EPA ZIP on file19426

Areas served

  • Montgomery County

Reading this record

Yerkes Water Association is a community water system that draws from groundwater and serves about 165 people in Collegeville, Pennsylvania. 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.