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DAYTON MUNI WATER DEPT

PWS ID: PA5030002 · DAYTON, Pennsylvania 16222

DAYTON MUNI WATER DEPT serves 600 people in DAYTON, Pennsylvania using Groundwater water sources. It has 213 recorded EPA violations, including 5 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: DAYTON MUNI WATER DEPT

DAYTON MUNI WATER DEPT is a local-owned community water system that delivers drinking water to 600 residents in DAYTON, Pennsylvania (Armstrong County) through 286 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 213 total violations for this system , of which 5 (2%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 190 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 Groundwater Rule, recorded in 29 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. DAYTON MUNI WATER DEPT's 213 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
600
Total Violations
213
Health-Based Violations
5
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
286
County
Armstrong
School/Daycare
No
MCL Violations
2
Monitoring Violations
190
Treatment Tech Violations
3

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Groundwater Rule MR 29 2025
Revised Total Coliform Rule MON 21 2025
Chlorine MR 11 2019
Total Haloacetic Acids (HAA5) MR 10 2023
TTHM MR 10 2023
Consumer Confidence Rule Other 6 2019
CYANIDE MR 6 2021
Gross Alpha, Excl. Radon and U MR 5 2015
Revised Total Coliform Rule RPT 4 2018
Barium MR 4 2021
Chromium MR 4 2021
Selenium MR 4 2021
Antimony, Total MR 4 2021
Beryllium, Total MR 4 2021
Public Notice Other 4 2019
Arsenic MR 4 2021
Fluoride MR 4 2021
Thallium, Total MR 4 2021
Mercury MR 4 2021
Cadmium MR 4 2021
Nickel MR 4 2021
Groundwater Rule TT 3 2015
cis-1,2-Dichloroethylene MR 2 2004
DICHLOROMETHANE MR 2 2004
1,1-Dichloroethylene MR 2 2004
1,2-Dichloroethane MR 2 2004
1,1,1-Trichloroethane MR 2 2004
Trichloroethylene MR 2 2004
Toluene MR 2 2004
Ethylbenzene MR 2 2004

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 DAYTON MUNI WATER DEPT.

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 PA5030002 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 DAYTON MUNI WATER DEPT 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 29 SDWIS / PA5030002 / 0700
2025 Revised Total Coliform Rule MON 21 SDWIS / PA5030002 / 8000
2023 Total Haloacetic Acids (HAA5) MR 10 SDWIS / PA5030002 / 2456
2023 TTHM MR 10 SDWIS / PA5030002 / 2950
2021 CYANIDE MR 6 SDWIS / PA5030002 / 1024
2021 Barium MR 4 SDWIS / PA5030002 / 1010
2021 Chromium MR 4 SDWIS / PA5030002 / 1020
2021 Selenium MR 4 SDWIS / PA5030002 / 1045
2021 Antimony, Total MR 4 SDWIS / PA5030002 / 1074
2021 Beryllium, Total MR 4 SDWIS / PA5030002 / 1075
2021 Arsenic MR 4 SDWIS / PA5030002 / 1005
2021 Fluoride MR 4 SDWIS / PA5030002 / 1025
2021 Thallium, Total MR 4 SDWIS / PA5030002 / 1085
2021 Mercury MR 4 SDWIS / PA5030002 / 1035
2021 Cadmium MR 4 SDWIS / PA5030002 / 1015

How DAYTON MUNI WATER DEPT Compares

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

Metric DAYTON MUNI WATER DEPT Pennsylvania avg Federal benchmark
Total violations 213 150.6 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 5 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 600 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 DAYTON MUNI WATER DEPT water safe to drink? ▼
DAYTON MUNI WATER DEPT (PWS ID: PA5030002) has 213 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 600 people using Groundwater sources.
How many people does DAYTON MUNI WATER DEPT serve? ▼
DAYTON MUNI WATER DEPT serves 600 people in DAYTON, Pennsylvania. It is a Local-owned system using Groundwater water sources with 286 service connections.
What type of violations does DAYTON MUNI WATER DEPT have? ▼
DAYTON MUNI WATER DEPT has 213 total violations: 5 health-based violations (MCL exceedances or treatment failures), 190 monitoring/reporting violations, and 3 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in DAYTON MUNI WATER DEPT water? ▼
No PFAS testing data is available for DAYTON MUNI WATER DEPT under the EPA's UCMR5 monitoring program.
What water source does DAYTON MUNI WATER DEPT use? ▼
DAYTON MUNI WATER DEPT 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.

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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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