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CONEWAGO TWP ELEM SCH

PWS ID: PA7220377 · HUMMELSTOWN, Pennsylvania 17036

CONEWAGO TWP ELEM SCH serves 250 people in HUMMELSTOWN, Pennsylvania using Groundwater water sources. It has 166 recorded EPA violations, including 38 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: CONEWAGO TWP ELEM SCH

CONEWAGO TWP ELEM SCH is a local-owned non-transient non-community water system that delivers drinking water to 250 residents in HUMMELSTOWN, Pennsylvania (Dauphin County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 166 total violations for this system , of which 38 (23%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 104 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 22 violations (MCL, health-based). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Pennsylvania, EPA tracks 7,701 public water systems serving 12,630,061 people, with 1,159,868 cumulative violations and 68,517 health-based violations on record. About 97% of systems in the state carry at least one violation, and state-wide the average per system is 150.6 violations. CONEWAGO TWP ELEM SCH's 166 violations sit above the Pennsylvania average. Statewide, 224 of 389 UCMR5-tested systems have reported PFAS detections (57.6%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
250
Total Violations
166
Health-Based Violations
38
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Local
Connections
1
County
Dauphin
School/Daycare
Yes
MCL Violations
30
Monitoring Violations
104
Treatment Tech Violations
8

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 22 2014
Nitrite MR 20 2015
Nitrate MR 18 2015
Public Notice Other 16 2014
Groundwater Rule MR 12 2025
Lead and Copper Rule MR 10 2017
Nitrate MCL 8 2013
Groundwater Rule TT 8 2023
Chlorine MR 6 2016
p-Dichlorobenzene MR 4 1991
Vinyl chloride MR 4 1991
1,1-Dichloroethylene MR 4 1991
Trichloroethylene MR 4 1991
Benzene MR 4 1991
Carbon tetrachloride MR 4 1991
1,2-Dichloroethane MR 4 1991
Revised Total Coliform Rule MON 4 2020
1,1,1-Trichloroethane MR 4 1991
Coliform (TCR) MR 2 1997

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records — or to file a complaint, request a Consumer Confidence Report, or check current monitoring status — go directly to the federal and state regulators that enforce the Safe Drinking Water Act for CONEWAGO TWP ELEM SCH.

Federal Source of Truth

EPA SDWIS — Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID PA7220377 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Pennsylvania Drinking Water Authority

Pennsylvania DEP — Bureau of Safe Drinking Water is the primacy agency that licenses and inspects CONEWAGO TWP ELEM SCH under EPA-delegated authority.

Open PA regulator portal

Source: Pennsylvania DEP — Bureau of Safe Drinking Water

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2025 Groundwater Rule MR 12 SDWIS / PA7220377 / 0700
2023 Groundwater Rule TT 8 SDWIS / PA7220377 / 0700
2020 Revised Total Coliform Rule MON 4 SDWIS / PA7220377 / 8000
2017 Lead and Copper Rule MR 10 SDWIS / PA7220377 / 5000
2016 Chlorine MR 6 SDWIS / PA7220377 / 0999
2015 Nitrite MR 20 SDWIS / PA7220377 / 1041
2015 Nitrate MR 18 SDWIS / PA7220377 / 1040
2014 Coliform (TCR) MCL 22 SDWIS / PA7220377 / 3100
2014 Public Notice Other 16 SDWIS / PA7220377 / 7500
2013 Nitrate MCL 8 SDWIS / PA7220377 / 1040
1997 Coliform (TCR) MR 2 SDWIS / PA7220377 / 3100
1991 p-Dichlorobenzene MR 4 SDWIS / PA7220377 / 2969
1991 Vinyl chloride MR 4 SDWIS / PA7220377 / 2976
1991 1,1-Dichloroethylene MR 4 SDWIS / PA7220377 / 2977
1991 Trichloroethylene MR 4 SDWIS / PA7220377 / 2984

How CONEWAGO TWP ELEM SCH Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric CONEWAGO TWP ELEM SCH Pennsylvania avg Federal benchmark
Total violations 166 150.6 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 38 8.9 Indicates a contaminant exceeded a federal MCL
PFAS detection None 57.6% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 250 1,640 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 7,701 regulated public water systems in Pennsylvania.

Federal MCL reference — Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is CONEWAGO TWP ELEM SCH water safe to drink? ▼
CONEWAGO TWP ELEM SCH (PWS ID: PA7220377) has 166 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 250 people using Groundwater sources.
How many people does CONEWAGO TWP ELEM SCH serve? ▼
CONEWAGO TWP ELEM SCH serves 250 people in HUMMELSTOWN, Pennsylvania. It is a Local-owned system using Groundwater water sources with 1 service connections.
What type of violations does CONEWAGO TWP ELEM SCH have? ▼
CONEWAGO TWP ELEM SCH has 166 total violations: 38 health-based violations (MCL exceedances or treatment failures), 104 monitoring/reporting violations, and 8 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in CONEWAGO TWP ELEM SCH water? ▼
No PFAS testing data is available for CONEWAGO TWP ELEM SCH under the EPA's UCMR5 monitoring program.
What water source does CONEWAGO TWP ELEM SCH use? ▼
CONEWAGO TWP ELEM SCH uses Groundwater as its primary water source. It is classified as a Non-Transient Non-Community Water System, serving the same people for at least 6 months per year.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

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Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology — how this data is sourced, computed, and verified.

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