Community Water System · PWSID PA1460033

Horsham Water&Sewer Authority

Serves 26,000 peopleSurface Water PurchasedOwner: Local GovernmentHorsham, Pennsylvania
Nothing open right now.

On record since 2017: 175 violations. 1 treatment lapse · 171 missed or late tests · 3 notices or reports. Most recent began 2024-07-01.

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
1Treatment lapse
171Missed or late test
3Notice or report

More violations on record than 98% 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

2005201020152017 · Missed or late test: 692017 · Missed or late test: 692017 · Missed or late test: 692017 · Missed or late test: 692017 · Missed or late test: 692017 · Missed or late test: 692017 · Missed or late test: 692017 · Missed or late test: 692018 · Treatment lapse: 12018 · Notice or report: 12019 · Missed or late test: 22019 · Notice or report: 12020 · Missed or late test: 120202021 · Missed or late test: 12023 · Missed or late test: 12023 · Notice or report: 12024 · Missed or late test: 972024 · Missed or late test: 972024 · Missed or late test: 972024 · Missed or late test: 972024 · Missed or late test: 972024 · Missed or late test: 972024 · Missed or late test: 972024 · Missed or late test: 972024 · Missed or late test: 972024 · Missed or late test: 972024 · Missed or late test: 972025
One square ≈ 9 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
<1% treatment lapse · 198% missed or late test · 1712% notice or report · 3

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 6 results on file · action level 15 ppb

4 ppb
3.8 ppb
3.3 ppb
3.3 ppb
2.7 ppb
0 ppb

Every violation on record

  1. 2024-07-01Radium-228Monitoring, RegularPeriod ended · no return to compliance on file
  2. 2024-01-01Styrene ×2Monitoring, RegularBack in compliance
  3. 2024-01-01Ethylbenzene ×2Monitoring, RegularBack in compliance
  4. 2024-01-01Toluene ×2Monitoring, RegularBack in compliance
  5. 2024-01-01Benzene ×2Monitoring, RegularBack in compliance
  6. 2024-01-01Chlorobenzene ×2Monitoring, RegularBack in compliance
  7. 2024-01-01Tetrachloroethylene ×2Monitoring, RegularBack in compliance
  8. 2024-01-011,1,2-Trichloroethane ×2Monitoring, RegularBack in compliance
  9. 2024-01-01Trichloroethylene ×2Monitoring, RegularBack in compliance
  10. 2024-01-011,2-Dichloropropane ×2Monitoring, RegularBack in compliance
  11. 2024-01-01Carbon tetrachloride ×2Monitoring, RegularBack in compliance
  12. 2024-01-011,1,1-Trichloroethane ×2Monitoring, RegularBack in compliance
  13. 2024-01-011,2-Dichloroethane ×2Monitoring, RegularBack in compliance
  14. 2024-01-01trans-1,2-Dichloroethylene ×2Monitoring, RegularBack in compliance
  15. 2024-01-011,1-Dichloroethylene ×2Monitoring, RegularBack in compliance
  16. 2024-01-01p-Dichlorobenzene ×2Monitoring, RegularBack in compliance
  17. 2024-01-01o-Dichlorobenzene ×2Monitoring, RegularBack in compliance
  18. 2024-01-01Dichloromethane ×2Monitoring, RegularBack in compliance
  19. 2024-01-01Xylenes, Total ×2Monitoring, RegularBack in compliance
  20. 2024-01-01cis-1,2-Dichloroethylene ×2Monitoring, RegularBack in compliance
  21. 2024-01-011,2,4-Trichlorobenzene ×2Monitoring, RegularBack in compliance
  22. 2024-01-01Chlordane ×2Monitoring, RegularBack in compliance
  23. 2024-01-01Ethylene Dibromide ×2Monitoring, RegularBack in compliance
  24. 2024-01-011, 2-Dibromo-3-Chloropropane ×2Monitoring, RegularBack in compliance
  25. 2024-01-01Total Polychlorinated Biphenyls (PCB) ×2Monitoring, RegularBack in compliance
Show the other 58 entries
  1. 2024-01-01Pentachlorophenol ×2Monitoring, RegularBack in compliance
  2. 2024-01-01Benzo(a)pyrene ×2Monitoring, RegularBack in compliance
  3. 2024-01-01Hexachlorobenzene ×2Monitoring, RegularBack in compliance
  4. 2024-01-012, 4, 5-Tp ×2Monitoring, RegularBack in compliance
  5. 2024-01-012, 4-D ×2Monitoring, RegularBack in compliance
  6. 2024-01-01Heptachlor epoxide ×2Monitoring, RegularBack in compliance
  7. 2024-01-01Heptachlor ×2Monitoring, RegularBack in compliance
  8. 2024-01-01Lasso ×2Monitoring, RegularBack in compliance
  9. 2024-01-01Atrazine ×2Monitoring, RegularBack in compliance
  10. 2024-01-01Carbofuran ×2Monitoring, RegularBack in compliance
  11. 2024-01-01Hexachlorocyclopentadiene ×2Monitoring, RegularBack in compliance
  12. 2024-01-01Dinoseb ×2Monitoring, RegularBack in compliance
  13. 2024-01-01Picloram ×2Monitoring, RegularBack in compliance
  14. 2024-01-01Di(2-ethylhexyl) phthalate ×2Monitoring, RegularBack in compliance
  15. 2024-01-01Simazine ×2Monitoring, RegularBack in compliance
  16. 2024-01-01Oxamyl ×2Monitoring, RegularBack in compliance
  17. 2024-01-01Di(2-ethylhexyl) adipate ×2Monitoring, RegularBack in compliance
  18. 2024-01-01Glyphosate ×2Monitoring, RegularBack in compliance
  19. 2024-01-01Diquat ×2Monitoring, RegularBack in compliance
  20. 2024-01-01Dalapon ×2Monitoring, RegularBack in compliance
  21. 2024-01-01Toxaphene ×2Monitoring, RegularBack in compliance
  22. 2024-01-01Methoxychlor ×2Monitoring, RegularBack in compliance
  23. 2024-01-01Bhc-Gamma ×2Monitoring, RegularBack in compliance
  24. 2024-01-01Endrin ×2Monitoring, RegularBack in compliance
  25. 2023-08-01Groundwater RuleMonitoring of Treatment (SWTR-Unfilt/GWR)Back in compliance
  26. 2023-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  27. 2021-04-01Groundwater RuleMonitoring of Treatment (SWTR-Unfilt/GWR)Back in compliance
  28. 2020-11-01Groundwater RuleMonitoring of Treatment (SWTR-Unfilt/GWR)Back in compliance
  29. 2019-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  30. 2019-04-01Groundwater RuleMonitoring of Treatment (SWTR-Unfilt/GWR)Back in compliance
  31. 2019-01-01Groundwater RuleMonitoring of Treatment (SWTR-Unfilt/GWR)Back in compliance
  32. 2018-05-13Public NoticePN Violation for NPDWR ViolationBack in compliance
  33. 2018-05-01Groundwater RuleTreatment Technique (SWTR and GWR)Back in compliance
  34. 2017-10-01Radium-228Monitoring, RegularBack in compliance
  35. 2017-10-01Radium-226Monitoring, RegularBack in compliance
  36. 2017-10-01Gross Alpha, Excl. Radon and UMonitoring, RegularBack in compliance
  37. 2017-01-01Styrene ×3Monitoring, RegularBack in compliance
  38. 2017-01-01Ethylbenzene ×3Monitoring, RegularBack in compliance
  39. 2017-01-01Toluene ×3Monitoring, RegularBack in compliance
  40. 2017-01-01Benzene ×3Monitoring, RegularBack in compliance
  41. 2017-01-01Chlorobenzene ×3Monitoring, RegularBack in compliance
  42. 2017-01-01Tetrachloroethylene ×3Monitoring, RegularBack in compliance
  43. 2017-01-011,1,2-Trichloroethane ×3Monitoring, RegularBack in compliance
  44. 2017-01-01Trichloroethylene ×3Monitoring, RegularBack in compliance
  45. 2017-01-011,2-Dichloropropane ×3Monitoring, RegularBack in compliance
  46. 2017-01-01Carbon tetrachloride ×3Monitoring, RegularBack in compliance
  47. 2017-01-011,1,1-Trichloroethane ×3Monitoring, RegularBack in compliance
  48. 2017-01-011,2-Dichloroethane ×3Monitoring, RegularBack in compliance
  49. 2017-01-01trans-1,2-Dichloroethylene ×3Monitoring, RegularBack in compliance
  50. 2017-01-011,1-Dichloroethylene ×3Monitoring, RegularBack in compliance
  51. 2017-01-01p-Dichlorobenzene ×3Monitoring, RegularBack in compliance
  52. 2017-01-01o-Dichlorobenzene ×3Monitoring, RegularBack in compliance
  53. 2017-01-01Dichloromethane ×3Monitoring, RegularBack in compliance
  54. 2017-01-01Xylenes, Total ×3Monitoring, RegularBack in compliance
  55. 2017-01-01cis-1,2-Dichloroethylene ×3Monitoring, RegularBack in compliance
  56. 2017-01-011,2,4-Trichlorobenzene ×3Monitoring, RegularBack in compliance
  57. 2017-01-01Nitrite ×3Monitoring, RegularBack in compliance
  58. 2017-01-01Nitrate ×3Monitoring, RegularBack in compliance

System details

Population served26,000
Service connections8,228
Water sourceSurface Water Purchased
System typeCommunity Water System
OwnerLocal Government
StatusActive
CityHorsham
EPA ZIP on file19044

Areas served

  • Montgomery County

Reading this record

Horsham Water&Sewer Authority is a community water system that draws from surface water purchased and serves about 26,000 people in Horsham, 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.