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Community Water System · PWS OH8704203

Northwestern W and SD - Oregon Wtln 200

Bowling Green, Ohio 43402-0348 - drinking water served from surface water sources to 9,629 people, tracked in EPA SDWIS and UCMR5.

9,629
People served
61
EPA violations
47
Health-based
1 PFAS
UCMR5 result

The verdict

EPA records 61 drinking-water violations at Northwestern W and SD - Oregon Wtln 200, 77% of them health-based - below the Ohio per-system average, and UCMR5 testing detected 1 PFAS compound.

61
Total EPA violations on record
77%
Health-based (MCL / treatment failure)
9,629
People served by this system
1
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Northwestern W and SD - Oregon Wtln 200

Northwestern W and SD - Oregon Wtln 200 is a local-owned community water system that delivers drinking water to 9,629 residents in Bowling Green, Ohio (Wood County) through 2,867 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 61 total violations for this system , of which 47 (77%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 9 monitoring and reporting violations are on file. The most recent violation on record dates to 2015.

The most frequently cited contaminant at this system is TTHM, recorded in 43 violations (MCL, health-based). Under EPA's UCMR5 PFAS monitoring program, 1 PFAS compound was detected in samples collected from this system, with a maximum reported concentration of 3.1 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%).

Northwestern W and SD - Oregon Wtln 200's 61 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

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

Population Served
9,629
Total Violations
61
Health-Based Violations
47
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
2,867
County
Wood
School/Daycare
No
MCL Violations
47
Monitoring Violations
9
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
TTHM MCL 43 2015
Total Haloacetic Acids (HAA5) MR 6 2007
Consumer Confidence Rule Other 4 2004
Coliform (TCR) MCL 4 1999
TTHM MR 3 2007

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 1 of 116 samples detected PFAS.

Contaminant Date Result MRL Status
PFEESA 9/19/2023 <3.00 ppt 3.00 ppt Not Detected
9Cl-PF3ONS 9/19/2023 <2.00 ppt 2.00 ppt Not Detected
6:2 FTS 9/19/2023 <5.00 ppt 5.00 ppt Not Detected
PFHpS 9/19/2023 <3.00 ppt 3.00 ppt Not Detected
11Cl-PF3OUdS 9/19/2023 <5.00 ppt 5.00 ppt Not Detected
NFDHA 9/19/2023 <20.00 ppt 20.00 ppt Not Detected
NMeFOSAA 9/19/2023 <6.00 ppt 6.00 ppt Not Detected
PFMBA 9/19/2023 <3.00 ppt 3.00 ppt Not Detected
PFPeA 9/19/2023 <3.00 ppt 3.00 ppt Not Detected
PFMPA 9/19/2023 <4.00 ppt 4.00 ppt Not Detected
8:2 FTS 9/19/2023 <5.00 ppt 5.00 ppt Not Detected
4:2 FTS 9/19/2023 <3.00 ppt 3.00 ppt Not Detected
PFPeS 9/19/2023 <4.00 ppt 4.00 ppt Not Detected
PFHxS 9/19/2023 <3.00 ppt 3.00 ppt Not Detected
PFUnA 9/19/2023 <2.00 ppt 2.00 ppt Not Detected
PFHxA 9/19/2023 3.10 ppt 3.00 ppt Detected
PFDoA 9/19/2023 <3.00 ppt 3.00 ppt Not Detected
PFDA 9/19/2023 <3.00 ppt 3.00 ppt Not Detected
PFOA 9/19/2023 <4.00 ppt 4.00 ppt Not Detected
PFTrDA 9/19/2023 <7.00 ppt 7.00 ppt Not Detected
PFNA 9/19/2023 <4.00 ppt 4.00 ppt Not Detected
ADONA 9/19/2023 <3.00 ppt 3.00 ppt Not Detected
PFHpA 9/19/2023 <3.00 ppt 3.00 ppt Not Detected
PFBS 9/19/2023 <3.00 ppt 3.00 ppt Not Detected
PFBA 9/19/2023 <5.00 ppt 5.00 ppt Not Detected
NEtFOSAA 9/19/2023 <5.00 ppt 5.00 ppt Not Detected
PFTA 9/19/2023 <8.00 ppt 8.00 ppt Not Detected
HFPO-DA 9/19/2023 <5.00 ppt 5.00 ppt Not Detected
PFOS 9/19/2023 <4.00 ppt 4.00 ppt Not Detected
PFOS 6/13/2023 <4.00 ppt 4.00 ppt Not Detected
PFUnA 6/13/2023 <2.00 ppt 2.00 ppt Not Detected
PFHxA 6/13/2023 <3.00 ppt 3.00 ppt Not Detected
PFDoA 6/13/2023 <3.00 ppt 3.00 ppt Not Detected
PFDA 6/13/2023 <3.00 ppt 3.00 ppt Not Detected
PFOA 6/13/2023 <4.00 ppt 4.00 ppt Not Detected
PFNA 6/13/2023 <4.00 ppt 4.00 ppt Not Detected
PFHxS 6/13/2023 <3.00 ppt 3.00 ppt Not Detected
PFHpA 6/13/2023 <3.00 ppt 3.00 ppt Not Detected
PFBS 6/13/2023 <3.00 ppt 3.00 ppt Not Detected
PFMBA 6/13/2023 <3.00 ppt 3.00 ppt Not Detected
11Cl-PF3OUdS 6/13/2023 <5.00 ppt 5.00 ppt Not Detected
NEtFOSAA 6/13/2023 <5.00 ppt 5.00 ppt Not Detected
NMeFOSAA 6/13/2023 <6.00 ppt 6.00 ppt Not Detected
PFTrDA 6/13/2023 <7.00 ppt 7.00 ppt Not Detected
9Cl-PF3ONS 6/13/2023 <2.00 ppt 2.00 ppt Not Detected
PFPeS 6/13/2023 <4.00 ppt 4.00 ppt Not Detected
PFHpS 6/13/2023 <3.00 ppt 3.00 ppt Not Detected
NFDHA 6/13/2023 <20.00 ppt 20.00 ppt Not Detected
PFEESA 6/13/2023 <3.00 ppt 3.00 ppt Not Detected
PFMPA 6/13/2023 <4.00 ppt 4.00 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 Northwestern W and SD - Oregon Wtln 200.

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 OH8704203 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 Northwestern W and SD - Oregon Wtln 200 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
2015 TTHM MCL 43 SDWIS / OH8704203 / 2950
2007 Total Haloacetic Acids (HAA5) MR 6 SDWIS / OH8704203 / 2456
2007 TTHM MR 3 SDWIS / OH8704203 / 2950
2004 Consumer Confidence Rule Other 4 SDWIS / OH8704203 / 7000
1999 Coliform (TCR) MCL 4 SDWIS / OH8704203 / 3100

How Northwestern W and SD - Oregon Wtln 200 Compares

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

Metric Northwestern W and SD - Oregon Wtln 200 Ohio avg Federal benchmark
Total violations 61 69 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 47 12.5 Indicates a contaminant exceeded a federal MCL
PFAS detection 1 compound 59% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 9,629 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 Northwestern W and SD - Oregon Wtln 200 water safe to drink? ▼
Northwestern W and SD - Oregon Wtln 200 (PWS ID: OH8704203) has 61 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 1 PFAS compound found. This system serves 9,629 people using Surface Water sources.
How many people does Northwestern W and SD - Oregon Wtln 200 serve? ▼
Northwestern W and SD - Oregon Wtln 200 serves 9,629 people in Bowling Green, Ohio. It is a Local-owned system using Surface Water water sources with 2,867 service connections.
What type of violations does Northwestern W and SD - Oregon Wtln 200 have? ▼
Northwestern W and SD - Oregon Wtln 200 has 61 total violations: 47 health-based violations (MCL exceedances or treatment failures), 9 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Northwestern W and SD - Oregon Wtln 200 water? ▼
Yes. UCMR5 testing detected 1 PFAS compound in Northwestern W and SD - Oregon Wtln 200's water supply: PFHxA. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does Northwestern W and SD - Oregon Wtln 200 use? ▼
Northwestern W and SD - Oregon Wtln 200 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.
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.

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.