Community Water System · PWSID PA4490018

Lower Mahanoy Twp Mun Auth

Serves 450 peopleGroundwaterOwner: PrivateDalmatia, Pennsylvania
Nothing open right now.

On record since 2012: 9 violations. 1 treatment lapse · 4 missed or late tests · 4 notices or reports. Most recent began 2025-05-16.

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
4Missed or late test
4Notice or report

More violations on record than 49% 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

200520102012 · Notice or report: 120152018 · Missed or late test: 12019 · Missed or late test: 22019 · Missed or late test: 220202022 · Notice or report: 22022 · Notice or report: 22023 · Missed or late test: 12024 · Notice or report: 12025 · Treatment lapse: 12025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
11% treatment lapse · 144% missed or late test · 444% notice or report · 4

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

Every violation on record

  1. 2025-05-16Groundwater RuleFailure To Address DeficiencyBack in compliance
  2. 2024-10-11Public NoticePN Violation for NPDWR ViolationBack in compliance
  3. 2023-07-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  4. 2022-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  5. 2022-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  6. 2019-01-01NitriteMonitoring, RegularBack in compliance
  7. 2019-01-01NitrateMonitoring, RegularBack in compliance
  8. 2018-06-01Groundwater RuleMonitoring of Treatment (SWTR-Unfilt/GWR)Back in compliance
  9. 2012-08-10Public NoticePN Violation for NPDWR ViolationBack in compliance

System details

Population served450
Service connections186
Water sourceGroundwater
System typeCommunity Water System
OwnerPrivate
StatusActive
CityDalmatia
EPA ZIP on file17017

Areas served

  • Northumberland County

Reading this record

Lower Mahanoy Twp Mun Auth is a community water system that draws from groundwater and serves about 450 people in Dalmatia, 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.