PlainWater
States → Pennsylvania

DUNCANNON MUNI WATER

PWS ID: PA7500019 · DUNCANNON, Pennsylvania 17020

DUNCANNON MUNI WATER serves 2,000 people in DUNCANNON, Pennsylvania using Groundwater water sources. It has 746 recorded EPA violations, including 14 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: DUNCANNON MUNI WATER

DUNCANNON MUNI WATER is a local-owned community water system that delivers drinking water to 2,000 residents in DUNCANNON, Pennsylvania (Perry County) through 1,137 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 746 total violations for this system , of which 14 (2%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 719 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 Nitrate, recorded in 26 violations (MR). 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. DUNCANNON MUNI WATER's 746 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
2,000
Total Violations
746
Health-Based Violations
14
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
1,137
County
Perry
School/Daycare
No
MCL Violations
5
Monitoring Violations
719
Treatment Tech Violations
9

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Nitrate MR 26 2022
Nitrite MR 25 2022
Di(2-ethylhexyl) phthalate MR 22 2021
Arsenic MR 20 2022
Total Polychlorinated Biphenyls (PCB) MR 18 2023
BHC-GAMMA MR 16 2023
Di(2-ethylhexyl) adipate MR 16 2021
Heptachlor MR 16 2023
HEXACHLOROBENZENE MR 16 2023
Chlordane MR 16 2023
Endrin MR 16 2023
Toxaphene MR 16 2023
Diquat MR 16 2023
Hexachlorocyclopentadiene MR 16 2023
Heptachlor epoxide MR 16 2023
Methoxychlor MR 16 2023
LASSO MR 16 2023
Dalapon MR 14 2023
Picloram MR 14 2023
Dinoseb MR 14 2023
2,4-D MR 14 2023
Pentachlorophenol MR 14 2023
2,4,5-TP MR 14 2023
Glyphosate MR 12 2020
OXAMYL MR 12 2020
Simazine MR 12 2020
Carbofuran MR 12 2020
Atrazine MR 12 2020
ETHYLENE DIBROMIDE MR 12 2020
Endothall MR 12 2020

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 DUNCANNON MUNI WATER.

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 PA7500019 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 DUNCANNON MUNI WATER 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 6 SDWIS / PA7500019 / 0700
2023 Total Polychlorinated Biphenyls (PCB) MR 18 SDWIS / PA7500019 / 2383
2023 BHC-GAMMA MR 16 SDWIS / PA7500019 / 2010
2023 Heptachlor MR 16 SDWIS / PA7500019 / 2065
2023 HEXACHLOROBENZENE MR 16 SDWIS / PA7500019 / 2274
2023 Chlordane MR 16 SDWIS / PA7500019 / 2959
2023 Endrin MR 16 SDWIS / PA7500019 / 2005
2023 Toxaphene MR 16 SDWIS / PA7500019 / 2020
2023 Diquat MR 16 SDWIS / PA7500019 / 2032
2023 Hexachlorocyclopentadiene MR 16 SDWIS / PA7500019 / 2042
2023 Heptachlor epoxide MR 16 SDWIS / PA7500019 / 2067
2023 Methoxychlor MR 16 SDWIS / PA7500019 / 2015
2023 LASSO MR 16 SDWIS / PA7500019 / 2051
2023 Dalapon MR 14 SDWIS / PA7500019 / 2031
2023 Picloram MR 14 SDWIS / PA7500019 / 2040

How DUNCANNON MUNI WATER Compares

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

Metric DUNCANNON MUNI WATER Pennsylvania avg Federal benchmark
Total violations 746 150.6 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 14 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 2,000 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 DUNCANNON MUNI WATER water safe to drink? ▼
DUNCANNON MUNI WATER (PWS ID: PA7500019) has 746 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 2,000 people using Groundwater sources.
How many people does DUNCANNON MUNI WATER serve? ▼
DUNCANNON MUNI WATER serves 2,000 people in DUNCANNON, Pennsylvania. It is a Local-owned system using Groundwater water sources with 1,137 service connections.
What type of violations does DUNCANNON MUNI WATER have? ▼
DUNCANNON MUNI WATER has 746 total violations: 14 health-based violations (MCL exceedances or treatment failures), 719 monitoring/reporting violations, and 9 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in DUNCANNON MUNI WATER water? ▼
No PFAS testing data is available for DUNCANNON MUNI WATER under the EPA's UCMR5 monitoring program.
What water source does DUNCANNON MUNI WATER use? ▼
DUNCANNON MUNI WATER uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
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.

Explore PlainWater

Water in Pennsylvania

All systems in state
All States

Water quality by state
Contaminants

PFAS & other pollutants
Guides

Understanding water quality

Related Data for Pennsylvania

Environmental Data → Natural Hazards → Air Quality → Healthcare Access → Climate Data →
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.

Related

Browse all → | Rankings →
Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by Kiznis Studio Editorial