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Community Water System · PWS OH8703211

Northwestern W and SD - Weston

Bowling Green, Ohio 43402-0348 - drinking water served from surface water sources to 3,648 people, tracked in EPA SDWIS and UCMR5.

3,648
People served
145
EPA violations
49
Health-based
Untested
UCMR5 result

The verdict

EPA records 145 drinking-water violations at Northwestern W and SD - Weston, 34% of them health-based - above the Ohio per-system average.

145
Total EPA violations on record
34%
Health-based (MCL / treatment failure)
3,648
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Northwestern W and SD - Weston

Northwestern W and SD - Weston is a local-owned community water system that delivers drinking water to 3,648 residents in Bowling Green, Ohio (Wood County) through 1,303 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 145 total violations for this system , of which 49 (34%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 79 monitoring and reporting violations are on file. The most recent violation on record dates to 2009.

The most frequently cited contaminant at this system is TTHM, recorded in 25 violations (MCL, health-based). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

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 - Weston's 145 violations sit above 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.

Population Served
3,648
Total Violations
145
Health-Based Violations
49
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
1,303
County
Wood
School/Daycare
No
MCL Violations
27
Monitoring Violations
79
Treatment Tech Violations
22

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
TTHM MCL 25 2006
Surface Water Treatment Rule MR 23 1993
Surface Water Treatment Rule TT 22 1994
Consumer Confidence Rule Other 14 2006
Coliform (TCR) MR 13 1992
BHC-GAMMA MR 3 1988
2,4,5-TP MR 3 1988
Barium MR 3 1988
Mercury MR 3 1988
Nitrate MR 3 1988
Selenium MR 3 1988
Arsenic MR 3 1988
Endrin MR 3 1988
2,4-D MR 3 1988
Cadmium MR 3 1988
Toxaphene MR 3 1988
Chromium MR 3 1988
Methoxychlor MR 3 1988
Fluoride MR 3 1988
Gross Alpha, Excl. Radon and U MCL 2 1984
Lead and Copper Rule MR 1 2009

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 - Weston.

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 OH8703211 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 - Weston 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
2009 Lead and Copper Rule MR 1 SDWIS / OH8703211 / 5000
2006 TTHM MCL 25 SDWIS / OH8703211 / 2950
2006 Consumer Confidence Rule Other 14 SDWIS / OH8703211 / 7000
1994 Surface Water Treatment Rule TT 22 SDWIS / OH8703211 / 0200
1993 Surface Water Treatment Rule MR 23 SDWIS / OH8703211 / 0200
1992 Coliform (TCR) MR 13 SDWIS / OH8703211 / 3100
1988 BHC-GAMMA MR 3 SDWIS / OH8703211 / 2010
1988 2,4,5-TP MR 3 SDWIS / OH8703211 / 2110
1988 Barium MR 3 SDWIS / OH8703211 / 1010
1988 Mercury MR 3 SDWIS / OH8703211 / 1035
1988 Nitrate MR 3 SDWIS / OH8703211 / 1040
1988 Selenium MR 3 SDWIS / OH8703211 / 1045
1988 Arsenic MR 3 SDWIS / OH8703211 / 1005
1988 Endrin MR 3 SDWIS / OH8703211 / 2005
1988 2,4-D MR 3 SDWIS / OH8703211 / 2105

How Northwestern W and SD - Weston Compares

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

Metric Northwestern W and SD - Weston Ohio avg Federal benchmark
Total violations 145 69 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 49 12.5 Indicates a contaminant exceeded a federal MCL
PFAS detection None 59% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 3,648 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 - Weston water safe to drink? ▼
Northwestern W and SD - Weston (PWS ID: OH8703211) has 145 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 3,648 people using Surface Water sources.
How many people does Northwestern W and SD - Weston serve? ▼
Northwestern W and SD - Weston serves 3,648 people in Bowling Green, Ohio. It is a Local-owned system using Surface Water water sources with 1,303 service connections.
What type of violations does Northwestern W and SD - Weston have? ▼
Northwestern W and SD - Weston has 145 total violations: 49 health-based violations (MCL exceedances or treatment failures), 79 monitoring/reporting violations, and 22 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Northwestern W and SD - Weston water? ▼
No PFAS testing data is available for Northwestern W and SD - Weston under the EPA's UCMR5 monitoring program.
What water source does Northwestern W and SD - Weston use? ▼
Northwestern W and SD - Weston 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. 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.