Community Water System · PWSID PA2640056

Mountain Crest Development

Serves 44 peopleGroundwaterOwner: PrivateHamlin, Pennsylvania
Nothing open that measures the water, but 1 open testing or paperwork violation.

A missed test is not evidence of bad water. It also is not evidence of good water: for that period nobody checked.

On record since 2004: 64 violations. 60 missed or late tests · 4 notices or reports. Most recent began 2025-07-01.

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
0Treatment lapse
60Missed or late test
4Notice or report1 open

More violations on record than 92% 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: 1200520102015 · Notice or report: 120152016 · Missed or late test: 32016 · Notice or report: 12018 · Missed or late test: 12019 · Missed or late test: 120202021 · Missed or late test: 12022 · Missed or late test: 512022 · Missed or late test: 512022 · Missed or late test: 512022 · Missed or late test: 512022 · Missed or late test: 512022 · Missed or late test: 512022 · Missed or late test: 512022 · Missed or late test: 512022 · Missed or late test: 512022 · Missed or late test: 512022 · Missed or late test: 512023 · Missed or late test: 12024 · Notice or report: 12025 · Missed or late test: 22025
One square ≈ 5 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
94% missed or late test · 606% notice or report · 4

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

Open now (1)

  1. 2024-12-11Public NoticePN Violation for NPDWR ViolationOpen

Every violation on record

  1. 2025-07-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  2. 2025-07-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  3. 2024-12-11Public NoticePN Violation for NPDWR ViolationOpen
  4. 2023-11-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  5. 2022-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  6. 2022-01-01StyreneMonitoring, RegularBack in compliance
  7. 2022-01-01EthylbenzeneMonitoring, RegularBack in compliance
  8. 2022-01-01TolueneMonitoring, RegularBack in compliance
  9. 2022-01-01BenzeneMonitoring, RegularBack in compliance
  10. 2022-01-01ChlorobenzeneMonitoring, RegularBack in compliance
  11. 2022-01-01TetrachloroethyleneMonitoring, RegularBack in compliance
  12. 2022-01-011,1,2-TrichloroethaneMonitoring, RegularBack in compliance
  13. 2022-01-01TrichloroethyleneMonitoring, RegularBack in compliance
  14. 2022-01-011,2-DichloropropaneMonitoring, RegularBack in compliance
  15. 2022-01-01Carbon tetrachlorideMonitoring, RegularBack in compliance
  16. 2022-01-011,1,1-TrichloroethaneMonitoring, RegularBack in compliance
  17. 2022-01-011,2-DichloroethaneMonitoring, RegularBack in compliance
  18. 2022-01-01trans-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  19. 2022-01-011,1-DichloroethyleneMonitoring, RegularBack in compliance
  20. 2022-01-01p-DichlorobenzeneMonitoring, RegularBack in compliance
  21. 2022-01-01o-DichlorobenzeneMonitoring, RegularBack in compliance
  22. 2022-01-01DichloromethaneMonitoring, RegularBack in compliance
  23. 2022-01-01Xylenes, TotalMonitoring, RegularBack in compliance
  24. 2022-01-01cis-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  25. 2022-01-011,2,4-TrichlorobenzeneMonitoring, RegularBack in compliance
Show the other 39 entries
  1. 2022-01-01ChlordaneMonitoring, RegularBack in compliance
  2. 2022-01-01Ethylene DibromideMonitoring, RegularBack in compliance
  3. 2022-01-011, 2-Dibromo-3-ChloropropaneMonitoring, RegularBack in compliance
  4. 2022-01-01Total Polychlorinated Biphenyls (PCB)Monitoring, RegularBack in compliance
  5. 2022-01-01PentachlorophenolMonitoring, RegularBack in compliance
  6. 2022-01-01Benzo(a)pyreneMonitoring, RegularBack in compliance
  7. 2022-01-01HexachlorobenzeneMonitoring, RegularBack in compliance
  8. 2022-01-012, 4, 5-TpMonitoring, RegularBack in compliance
  9. 2022-01-012, 4-DMonitoring, RegularBack in compliance
  10. 2022-01-01Heptachlor epoxideMonitoring, RegularBack in compliance
  11. 2022-01-01HeptachlorMonitoring, RegularBack in compliance
  12. 2022-01-012, 3, 7, 8-TcddMonitoring, RegularBack in compliance
  13. 2022-01-01LassoMonitoring, RegularBack in compliance
  14. 2022-01-01AtrazineMonitoring, RegularBack in compliance
  15. 2022-01-01CarbofuranMonitoring, RegularBack in compliance
  16. 2022-01-01HexachlorocyclopentadieneMonitoring, RegularBack in compliance
  17. 2022-01-01DinosebMonitoring, RegularBack in compliance
  18. 2022-01-01PicloramMonitoring, RegularBack in compliance
  19. 2022-01-01Di(2-ethylhexyl) phthalateMonitoring, RegularBack in compliance
  20. 2022-01-01SimazineMonitoring, RegularBack in compliance
  21. 2022-01-01OxamylMonitoring, RegularBack in compliance
  22. 2022-01-01Di(2-ethylhexyl) adipateMonitoring, RegularBack in compliance
  23. 2022-01-01GlyphosateMonitoring, RegularBack in compliance
  24. 2022-01-01EndothallMonitoring, RegularBack in compliance
  25. 2022-01-01DiquatMonitoring, RegularBack in compliance
  26. 2022-01-01DalaponMonitoring, RegularBack in compliance
  27. 2022-01-01ToxapheneMonitoring, RegularBack in compliance
  28. 2022-01-01MethoxychlorMonitoring, RegularBack in compliance
  29. 2022-01-01Bhc-GammaMonitoring, RegularBack in compliance
  30. 2022-01-01EndrinMonitoring, RegularBack in compliance
  31. 2021-01-01FluorideMonitoring, RegularPeriod ended · no return to compliance on file
  32. 2019-04-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  33. 2018-04-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  34. 2016-10-01Radium-228Monitoring, RegularBack in compliance
  35. 2016-10-01Radium-226Monitoring, RegularBack in compliance
  36. 2016-10-01Gross Alpha, Excl. Radon and UMonitoring, RegularBack in compliance
  37. 2016-04-01Revised Total Coliform RuleRPTBack in compliance
  38. 2015-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  39. 2004-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance

System details

Population served44
Service connections17
Water sourceGroundwater
System typeCommunity Water System
OwnerPrivate
StatusActive
CityHamlin
EPA ZIP on file18427

Areas served

  • Wayne County

Reading this record

Mountain Crest Development is a community water system that draws from groundwater and serves about 44 people in Hamlin, 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.