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Community Water System · PWS OH2903412

Wright-Patterson Afb Area a PWS

Vandalia, Ohio 45377 - drinking water served from groundwater sources to 16,551 people, tracked in EPA SDWIS and UCMR5.

16,551
People served
32
EPA violations
24
Health-based
7 PFAS
UCMR5 result

The verdict

EPA records 32 drinking-water violations at Wright-Patterson Afb Area a PWS, 75% of them health-based - below the Ohio per-system average, and UCMR5 testing detected 7 PFAS compounds.

32
Total EPA violations on record
75%
Health-based (MCL / treatment failure)
16,551
People served by this system
7
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Wright-Patterson Afb Area a PWS

Wright-Patterson Afb Area a PWS is a private-owned community water system that delivers drinking water to 16,551 residents in Vandalia, Ohio (Greene County) through 479 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 32 total violations for this system , of which 24 (75%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 6 monitoring and reporting violations are on file. The most recent violation on record dates to 1998.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 24 violations (MCL, health-based). Under EPA's UCMR5 PFAS monitoring program, 7 PFAS compounds were detected in samples collected from this system, with a maximum reported concentration of 25 ppt (parts per trillion). PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

Across Ohio, EPA tracks 4,181 public water systems serving 11,085,226 people, with 288,388 cumulative violations and 52,412 health-based violations on record. About 90% of systems in the state carry at least one violation, and state-wide the average per system is 69 violations. Statewide, 204 of 346 UCMR5-tested systems have reported PFAS detections (59%).

Wright-Patterson Afb Area a PWS's 32 violations sit below the Ohio average.

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

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

Population Served
16,551
Total Violations
32
Health-Based Violations
24
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
479
County
Greene
School/Daycare
No
MCL Violations
24
Monitoring Violations
6
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 24 1998
Nitrate MR 3 1998
Coliform (TCR) MR 3 1998

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 24 of 232 samples detected PFAS.

Contaminant Date Result MRL Status
PFOS 9/18/2024 4.90 ppt 4.00 ppt Detected
PFUnA 9/18/2024 <2.00 ppt 2.00 ppt Not Detected
PFHxA 9/18/2024 <3.00 ppt 3.00 ppt Not Detected
PFDoA 9/18/2024 <3.00 ppt 3.00 ppt Not Detected
PFDA 9/18/2024 <3.00 ppt 3.00 ppt Not Detected
PFOA 9/18/2024 <4.00 ppt 4.00 ppt Not Detected
PFNA 9/18/2024 <4.00 ppt 4.00 ppt Not Detected
PFHxS 9/18/2024 3.40 ppt 3.00 ppt Detected
PFHpA 9/18/2024 <3.00 ppt 3.00 ppt Not Detected
PFBS 9/18/2024 7.20 ppt 3.00 ppt Detected
11Cl-PF3OUdS 9/18/2024 <5.00 ppt 5.00 ppt Not Detected
PFPeS 9/18/2024 <4.00 ppt 4.00 ppt Not Detected
PFMPA 9/18/2024 <4.00 ppt 4.00 ppt Not Detected
NFDHA 9/18/2024 <20.00 ppt 20.00 ppt Not Detected
PFHpS 9/18/2024 <3.00 ppt 3.00 ppt Not Detected
PFMBA 9/18/2024 <3.00 ppt 3.00 ppt Not Detected
PFEESA 9/18/2024 <3.00 ppt 3.00 ppt Not Detected
4:2 FTS 9/18/2024 <3.00 ppt 3.00 ppt Not Detected
9Cl-PF3ONS 9/18/2024 <2.00 ppt 2.00 ppt Not Detected
PFPeA 9/18/2024 <3.00 ppt 3.00 ppt Not Detected
8:2 FTS 9/18/2024 <5.00 ppt 5.00 ppt Not Detected
6:2 FTS 9/18/2024 <5.00 ppt 5.00 ppt Not Detected
PFBA 9/18/2024 <5.00 ppt 5.00 ppt Not Detected
HFPO-DA 9/18/2024 <5.00 ppt 5.00 ppt Not Detected
ADONA 9/18/2024 <3.00 ppt 3.00 ppt Not Detected
PFHpS 8/6/2024 <3.00 ppt 3.00 ppt Not Detected
PFHxA 8/6/2024 <3.00 ppt 3.00 ppt Not Detected
PFHxS 8/6/2024 <3.00 ppt 3.00 ppt Not Detected
11Cl-PF3OUdS 8/6/2024 <5.00 ppt 5.00 ppt Not Detected
PFTA 8/6/2024 <8.00 ppt 8.00 ppt Not Detected
PFTrDA 8/6/2024 <7.00 ppt 7.00 ppt Not Detected
NEtFOSAA 8/6/2024 <5.00 ppt 5.00 ppt Not Detected
NMeFOSAA 8/6/2024 <6.00 ppt 6.00 ppt Not Detected
PFPeS 8/6/2024 <4.00 ppt 4.00 ppt Not Detected
PFHpA 8/6/2024 <3.00 ppt 3.00 ppt Not Detected
PFNA 8/6/2024 <4.00 ppt 4.00 ppt Not Detected
PFOS 8/6/2024 <4.00 ppt 4.00 ppt Not Detected
PFOA 8/6/2024 <4.00 ppt 4.00 ppt Not Detected
PFDA 8/6/2024 <3.00 ppt 3.00 ppt Not Detected
PFDoA 8/6/2024 <3.00 ppt 3.00 ppt Not Detected
8:2 FTS 8/6/2024 <5.00 ppt 5.00 ppt Not Detected
PFBS 8/6/2024 <3.00 ppt 3.00 ppt Not Detected
NFDHA 8/6/2024 <20.00 ppt 20.00 ppt Not Detected
PFMBA 8/6/2024 <3.00 ppt 3.00 ppt Not Detected
PFMPA 8/6/2024 <4.00 ppt 4.00 ppt Not Detected
PFEESA 8/6/2024 <3.00 ppt 3.00 ppt Not Detected
4:2 FTS 8/6/2024 <3.00 ppt 3.00 ppt Not Detected
6:2 FTS 8/6/2024 <5.00 ppt 5.00 ppt Not Detected
PFBA 8/6/2024 <5.00 ppt 5.00 ppt Not Detected
HFPO-DA 8/6/2024 <5.00 ppt 5.00 ppt 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 Wright-Patterson Afb Area a PWS.

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 OH2903412 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Ohio Drinking Water Authority

Ohio EPA, Division of Drinking and Ground Waters is the primacy agency that licenses and inspects Wright-Patterson Afb Area a PWS under EPA-delegated authority.

Open OH regulator portal

Source: Ohio EPA, Division of Drinking and Ground Waters

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
1998 Coliform (TCR) MCL 24 SDWIS / OH2903412 / 3100
1998 Nitrate MR 3 SDWIS / OH2903412 / 1040
1998 Coliform (TCR) MR 3 SDWIS / OH2903412 / 3100

How Wright-Patterson Afb Area a PWS Compares

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

Metric Wright-Patterson Afb Area a PWS Ohio avg Federal benchmark
Total violations 32 69 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 24 12.5 Indicates a contaminant exceeded a federal MCL
PFAS detection 7 compounds 59% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 16,551 2,651 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 4,181 regulated public water systems in Ohio.

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 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Wright-Patterson Afb Area a PWS water safe to drink?
Wright-Patterson Afb Area a PWS (PWS ID: OH2903412) has 32 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 7 PFAS compounds found. This system serves 16,551 people using Groundwater sources.
How many people does Wright-Patterson Afb Area a PWS serve?
Wright-Patterson Afb Area a PWS serves 16,551 people in Vandalia, Ohio. It is a Private-owned system using Groundwater water sources with 479 service connections.
What type of violations does Wright-Patterson Afb Area a PWS have?
Wright-Patterson Afb Area a PWS has 32 total violations: 24 health-based violations (MCL exceedances or treatment failures), 6 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Wright-Patterson Afb Area a PWS water?
Yes. UCMR5 testing detected 7 PFAS compounds in Wright-Patterson Afb Area a PWS's water supply: PFOS, PFHxS, PFBS, PFHpA, PFHxA, and others. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does Wright-Patterson Afb Area a PWS use?
Wright-Patterson Afb Area a PWS 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.
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.
Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.