Non-Transient Non-Community · PWSID PA7220377

Conewago Twp Elem Sch

Serves 250 peopleGroundwaterOwner: Local GovernmentHummelstown, PennsylvaniaServes a school or daycare
Nothing open right now.

On record since 2013: 18 violations. 2 treatment lapses · 12 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
2Treatment lapse
12Missed or late test
4Notice or report

More violations on record than 68% 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

200520102013 · Missed or late test: 12013 · Notice or report: 32013 · Notice or report: 32013 · Notice or report: 32014 · Notice or report: 12015 · Missed or late test: 32015 · Missed or late test: 32015 · Missed or late test: 320152016 · Missed or late test: 12017 · Treatment lapse: 12017 · Missed or late test: 12019 · Missed or late test: 12020 · Missed or late test: 22020 · Missed or late test: 220202021 · Missed or late test: 22021 · Missed or late test: 22023 · Treatment lapse: 12025 · Missed or late test: 12025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
11% treatment lapse · 267% missed or late test · 1222% notice or report · 4

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.

Copper, 90th percentile 2 results on file · action level 1.3 mg/L

1.8 mg/L
1.7 mg/L

Every violation on record

  1. 2025-07-01Groundwater RuleMonitoring of Treatment (SWTR-Unfilt/GWR)Back in compliance
  2. 2023-06-01Groundwater RuleTreatment Technique (SWTR and GWR)Back in compliance
  3. 2021-07-01Groundwater RuleMonitoring of Treatment (SWTR-Unfilt/GWR)Back in compliance
  4. 2021-06-01Groundwater RuleMonitoring of Treatment (SWTR-Unfilt/GWR)Back in compliance
  5. 2020-11-01Revised Total Coliform RuleMONBack in compliance
  6. 2020-02-01Groundwater RuleMonitoring of Treatment (SWTR-Unfilt/GWR)Back in compliance
  7. 2019-01-01Groundwater RuleMonitoring of Treatment (SWTR-Unfilt/GWR)Back in compliance
  8. 2017-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  9. 2017-07-01Groundwater RuleTreatment Technique (SWTR and GWR)Back in compliance
  10. 2016-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  11. 2015-12-01Groundwater RuleMonitoring of Treatment (SWTR-Unfilt/GWR)Back in compliance
  12. 2015-04-01NitriteMonitoring, RegularBack in compliance
  13. 2015-04-01NitrateMonitoring, RegularBack in compliance
  14. 2014-09-10Public NoticePN Violation for NPDWR ViolationBack in compliance
  15. 2013-12-11Public NoticePN Violation for NPDWR ViolationBack in compliance
  16. 2013-11-12Public NoticePN Violation for NPDWR ViolationBack in compliance
  17. 2013-10-12Public NoticePN Violation for NPDWR ViolationBack in compliance
  18. 2013-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance

System details

Population served250
Service connections1
Water sourceGroundwater
System typeNon-Transient Non-Community
OwnerLocal Government
StatusActive
CityHummelstown
EPA ZIP on file17036

Areas served

  • Dauphin County

Reading this record

Conewago Twp Elem Sch is a non-transient non-community that draws from groundwater and serves about 250 people in Hummelstown, 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.