Community Water System · PWSID PA1090079

Bcwsa Main Lower South

Serves 52,621 peopleSurface Water PurchasedOwner: Local GovernmentWarrington, Pennsylvania
Nothing open right now.

On record since 2004: 30 violations. 11 over the limit · 2 treatment lapses · 3 missed or late tests · 14 notices or reports. Most recent began 2025-09-01.

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

11Over the limit
2Treatment lapse
3Missed or late test
14Notice or report

More violations on record than 80% 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

2004 · Notice or report: 120052007 · Notice or report: 12009 · Notice or report: 12010 · Notice or report: 120102011 · Notice or report: 12015 · Treatment lapse: 12015 · Missed or late test: 22015 · Missed or late test: 22015 · Notice or report: 120152016 · Notice or report: 12017 · Over the limit: 22017 · Over the limit: 22018 · Over the limit: 52018 · Over the limit: 52018 · Over the limit: 52018 · Over the limit: 52018 · Over the limit: 52018 · Notice or report: 32018 · Notice or report: 32018 · Notice or report: 320202022 · Over the limit: 22022 · Over the limit: 22022 · Missed or late test: 12022 · Notice or report: 12023 · Over the limit: 12023 · Treatment lapse: 12023 · Notice or report: 32023 · Notice or report: 32023 · Notice or report: 32025 · Over the limit: 12025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
37% over the limit · 117% treatment lapse · 210% missed or late test · 347% notice or report · 14

Across Pennsylvania, 71% of violations are missed or late tests and 2% 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 7 results on file · action level 15 ppb

2 ppb
1.2 ppb
0.96 ppb
0 ppb
0 ppb
0 ppb
0 ppb

Every violation on record

  1. 2025-09-01Revised Total Coliform RuleMCLBack in compliance
  2. 2023-09-23Public NoticePN Violation for NPDWR ViolationBack in compliance
  3. 2023-08-13Revised Total Coliform RuleRPTBack in compliance
  4. 2023-08-13Revised Total Coliform RuleTTBack in compliance
  5. 2023-08-12Public NoticePN Violation for NPDWR ViolationBack in compliance
  6. 2023-07-01Revised Total Coliform RuleMCLPeriod ended · no return to compliance on file
  7. 2022-05-11Public NoticePN Violation for NPDWR ViolationBack in compliance
  8. 2022-04-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0650 MG/LBack in compliance
  9. 2022-04-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  10. 2022-01-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0610 MG/LBack in compliance
  11. 2018-11-10Public Notice ×2PN Violation for NPDWR ViolationBack in compliance
  12. 2018-08-10Public NoticePN Violation for NPDWR ViolationBack in compliance
  13. 2018-07-01Total Haloacetic Acids (HAA5)MCL, AverageBack in compliance
  14. 2018-07-01Trihalomethanes (TTHM)MCL, AverageBack in compliance
  15. 2018-04-01Total Haloacetic Acids (HAA5)MCL, AverageBack in compliance
  16. 2018-01-01Total Haloacetic Acids (HAA5) ×2MCL, AverageBack in compliance
  17. 2017-10-01Total Haloacetic Acids (HAA5) ×2MCL, AverageBack in compliance
  18. 2016-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  19. 2015-10-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  20. 2015-10-01Surface water treatment (SWTR)Treatment Technique (SWTR and GWR)Back in compliance
  21. 2015-08-01Coliform (TCR)Monitoring, Repeat Minor (TCR)Back in compliance
  22. 2015-07-11Public NoticePN Violation for NPDWR ViolationBack in compliance
  23. 2011-02-10Public NoticePN Violation for NPDWR ViolationBack in compliance
  24. 2010-11-10Public NoticePN Violation for NPDWR ViolationBack in compliance
  25. 2009-08-10Public NoticePN Violation for NPDWR ViolationBack in compliance
Show the other 2 entries
  1. 2007-09-10Public NoticePN Violation for NPDWR ViolationBack in compliance
  2. 2004-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance

System details

Population served52,621
Service connections15,800
Water sourceSurface Water Purchased
System typeCommunity Water System
OwnerLocal Government
StatusActive
CityWarrington
EPA ZIP on file18976

Areas served

  • Bucks County

Reading this record

Bcwsa Main Lower South is a community water system that draws from surface water purchased and serves about 52,621 people in Warrington, 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.