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DANVILLE MUNICIPAL WATER AUTH

PWS ID: PA4470007 · DANVILLE, Pennsylvania 17821

DANVILLE MUNICIPAL WATER AUTH serves 4,992 people in DANVILLE, Pennsylvania using Surface Water water sources. It has 282 recorded EPA violations, including 5 health-based violations. PFAS "forever chemicals" were detected in UCMR5 testing (2 compounds found).

Water Quality Snapshot: DANVILLE MUNICIPAL WATER AUTH

DANVILLE MUNICIPAL WATER AUTH is a local-owned community water system that delivers drinking water to 4,992 residents in DANVILLE, Pennsylvania (Montour County) through 2,272 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 282 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 260 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 Surface Water Treatment Rule, recorded in 30 violations (MR). Under EPA's UCMR5 PFAS monitoring program, 2 PFAS compounds were detected in samples collected from this system, with a maximum reported concentration of 0.0031 ppt. PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

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. DANVILLE MUNICIPAL WATER AUTH's 282 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.

PFAS Detected

2 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served
4,992
Total Violations
282
Health-Based Violations
5
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
2,272
County
Montour
School/Daycare
No
MCL Violations
0
Monitoring Violations
260
Treatment Tech Violations
5

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Surface Water Treatment Rule MR 30 2023
Interim Enhanced Surface Water Treatment Rule MR 29 2023
Chlorine MR 11 2016
Benzo(a)pyrene MR 9 2018
CARBON, TOTAL MR 8 2024
Picloram MR 7 2023
Public Notice Other 7 2025
TTHM MR 6 2024
Endothall MR 5 2023
Di(2-ethylhexyl) adipate MR 5 2023
OXAMYL MR 5 2023
Di(2-ethylhexyl) phthalate MR 5 2023
Carbofuran MR 5 2023
Pentachlorophenol MR 5 2023
Xylenes, Total MR 4 2018
DICHLOROMETHANE MR 4 2018
1,1-Dichloroethylene MR 4 2018
trans-1,2-Dichloroethylene MR 4 2018
1,2-Dichloroethane MR 4 2018
1,1,1-Trichloroethane MR 4 2018
Carbon tetrachloride MR 4 2018
1,2-Dichloropropane MR 4 2018
Tetrachloroethylene MR 4 2018
Benzene MR 4 2018
Revised Total Coliform Rule TT 4 2020
Revised Total Coliform Rule RPT 4 2020
Toluene MR 4 2018
CHLOROBENZENE MR 4 2018
p-Dichlorobenzene MR 4 2018
Ethylbenzene MR 4 2018

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 2 of 120 samples detected PFAS.

Contaminant Date Result MRL Status
PFHpS 8/19/2025 <0.003 µg/L 0.003 µg/L Not Detected
lithium 8/19/2025 <9 µg/L 9 µg/L Not Detected
PFHxA 8/19/2025 0.0030 µg/L 0.003 µg/L Detected
PFMBA 8/19/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 8/19/2025 0.0031 µg/L 0.003 µg/L Detected
PFMPA 8/19/2025 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 8/19/2025 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 8/19/2025 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 8/19/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 8/19/2025 <0.005 µg/L 0.005 µg/L Not Detected
HFPO-DA 8/19/2025 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 8/19/2025 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 8/19/2025 <0.002 µg/L 0.002 µg/L Not Detected
PFEESA 8/19/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 8/19/2025 <0.002 µg/L 0.002 µg/L Not Detected
PFNA 8/19/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFDoA 8/19/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 8/19/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 8/19/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 8/19/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFPeS 8/19/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 8/19/2025 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 8/19/2025 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 8/19/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 8/19/2025 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 8/19/2025 <0.008 µg/L 0.008 µg/L Not Detected
PFBS 8/19/2025 <0.003 µg/L 0.003 µg/L Not Detected
11Cl-PF3OUdS 8/19/2025 <0.005 µg/L 0.005 µg/L Not Detected
NFDHA 8/19/2025 <0.02 µg/L 0.02 µg/L Not Detected
PFHpA 8/19/2025 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 5/21/2025 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 5/21/2025 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 5/21/2025 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 5/21/2025 <0.005 µg/L 0.005 µg/L Not Detected
8:2 FTS 5/21/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 5/21/2025 <0.004 µg/L 0.004 µg/L Not Detected
lithium 5/21/2025 <9 µg/L 9 µg/L Not Detected
PFBS 5/21/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 5/21/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 5/21/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 5/21/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 5/21/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 5/21/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 5/21/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 5/21/2025 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 5/21/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFPeA 5/21/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 5/21/2025 <0.007 µg/L 0.007 µg/L Not Detected
PFHpS 5/21/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 5/21/2025 <0.004 µg/L 0.004 µg/L Not Detected

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 DANVILLE MUNICIPAL WATER AUTH.

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 PA4470007 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 DANVILLE MUNICIPAL WATER AUTH 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 Public Notice Other 7 SDWIS / PA4470007 / 7500
2024 CARBON, TOTAL MR 8 SDWIS / PA4470007 / 2920
2024 TTHM MR 6 SDWIS / PA4470007 / 2950
2023 Surface Water Treatment Rule MR 30 SDWIS / PA4470007 / 0200
2023 Interim Enhanced Surface Water Treatment Rule MR 29 SDWIS / PA4470007 / 0300
2023 Picloram MR 7 SDWIS / PA4470007 / 2040
2023 Endothall MR 5 SDWIS / PA4470007 / 2033
2023 Di(2-ethylhexyl) adipate MR 5 SDWIS / PA4470007 / 2035
2023 OXAMYL MR 5 SDWIS / PA4470007 / 2036
2023 Di(2-ethylhexyl) phthalate MR 5 SDWIS / PA4470007 / 2039
2023 Carbofuran MR 5 SDWIS / PA4470007 / 2046
2023 Pentachlorophenol MR 5 SDWIS / PA4470007 / 2326
2023 Diquat MR 2 SDWIS / PA4470007 / 2032
2023 Glyphosate MR 2 SDWIS / PA4470007 / 2034
2023 2,4,5-TP MR 2 SDWIS / PA4470007 / 2110

How DANVILLE MUNICIPAL WATER AUTH Compares

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

Metric DANVILLE MUNICIPAL WATER AUTH Pennsylvania avg Federal benchmark
Total violations 282 150.6 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 2 compounds 57.6% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 4,992 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 DANVILLE MUNICIPAL WATER AUTH water safe to drink? ▼
DANVILLE MUNICIPAL WATER AUTH (PWS ID: PA4470007) has 282 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 2 PFAS compounds found. This system serves 4,992 people using Surface Water sources.
How many people does DANVILLE MUNICIPAL WATER AUTH serve? ▼
DANVILLE MUNICIPAL WATER AUTH serves 4,992 people in DANVILLE, Pennsylvania. It is a Local-owned system using Surface Water water sources with 2,272 service connections.
What type of violations does DANVILLE MUNICIPAL WATER AUTH have? ▼
DANVILLE MUNICIPAL WATER AUTH has 282 total violations: 5 health-based violations (MCL exceedances or treatment failures), 260 monitoring/reporting violations, and 5 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in DANVILLE MUNICIPAL WATER AUTH water? ▼
Yes. UCMR5 testing detected 2 PFAS compounds in DANVILLE MUNICIPAL WATER AUTH's water supply: PFHxA, PFPeA. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does DANVILLE MUNICIPAL WATER AUTH use? ▼
DANVILLE MUNICIPAL WATER AUTH uses Surface Water 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. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.

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

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