Northwestern W and Sd - Mccomb
EPA ID: OH3200411 · 1,527 people served · 3 ZIP codes
ZipCheckup's reading of EPA SDWIS for Northwestern W and Sd - Mccomb (OH3200411): 1 unresolved EPA violation on record. Pulled from the federal compliance ledger, 1 violation at Northwestern W and Sd - Mccomb remain without resolution - the utility delivers drinking water to roughly 1,527 residents.
Data: EPA SDWIS
Service Area Map
Coverage area for Northwestern W and Sd - Mccomb Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Northwestern W and Sd - Mccomb serves a community with a median household income of $66,552 and an estimated 58,884 residents across its service area. Approximately 66% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
🌊 Where Does Your Water Come From?
Northwestern W and Sd - Mccomb's water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap.
Infrastructure Risk
Detected Contaminants
How Northwestern W and Sd - Mccomb compares to EPA limits
What This Means For You
Total Trihalomethanes (TTHM) at 7 mg/L exceeds the EPA maximum of 0.08 mg/L. Bladder & rectal cancer risk; reproductive concerns. Consider granular activated carbon (GAC) filtration.
Surface Water Treatment Rule at 2 mg/L exceeds the EPA maximum of mg/L.
Total Trihalomethanes (TTHM) was detected in this water system. granular activated carbon (GAC) filtration can reduce exposure.
Find a certified water filter →Comparable Water Systems
Similar-sized systems in Ohio
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
Northwestern W and Sd - Mccomb (EPA ID: OH3200411) is a community water system in Ohio that serves approximately 1,527 people from surface water sources.
This system provides water to 3 ZIP codes across 3 communities.
Violation History
Status breakdown for accepted records with record years 2021-2026: 8 resolved, 0 archived, 0 addressed, and 1 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| December 1, 2025 | Surface Water Treatment Rule | Non-health-based | Unaddressed (current) |
| July 31, 2024 | Surface Water Treatment Rule | Non-health-based | Resolved |
| January 1, 2024 | Total Trihalomethanes (TTHM) | Health-based | Resolved |
| October 1, 2023 | Total Trihalomethanes (TTHM) | Health-based | Resolved |
| July 1, 2023 | Total Trihalomethanes (TTHM) | Health-based | Resolved |
| April 1, 2023 | Total Trihalomethanes (TTHM) | Health-based | Resolved |
| January 1, 2023 | Total Trihalomethanes (TTHM) | Health-based | Resolved |
| October 1, 2022 | Total Trihalomethanes (TTHM) | Health-based | Resolved |
| July 1, 2022 | Total Trihalomethanes (TTHM) | Health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 7 | Yes |
| Surface Water Treatment Rule | Treatment Failure | 2 | No |
Health Risk Details
Total Trihalomethanes (TTHM) (EPA limit: 0.08 mg/L)
Bladder & rectal cancer risk; reproductive concerns At-risk groups: pregnant women, long-term consumers of chlorinated water, people who frequently shower in chlorinated water.
Removal methods: granular activated carbon (GAC), carbon block filter, point-of-entry aeration. Find the right filter →
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0 mg/L | No | N/A |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
ZIP Codes Served
Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by OH or modeled from parcel and building-footprint data.
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Northwestern W and Sd - Mccomb (OH3200411) on EPA.gov.
Frequently Asked Questions
Is Northwestern W and Sd - Mccomb water safe to drink?
The accepted 2026Q2 ECHO snapshot shows 1 current noncompliance record and zero current records classified as health-based. That classification is not a property-specific water test or safety guarantee.
How many people does Northwestern W and Sd - Mccomb serve?
Northwestern W and Sd - Mccomb serves approximately 1,527 people across 3 ZIP codes in Ohio.
Where does Northwestern W and Sd - Mccomb get its water?
The primary water source is surface water.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Northwestern W and Sd - Mccomb (OH): 7 Health Violations. https://zipcheckup.com/water-system/oh3200411/
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title = {{Northwestern W and Sd - Mccomb (OH): 7 Health Violations}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/oh3200411/}
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What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
Northwestern W and Sd - Mccomb (EPA ID: OH3200411) - request the latest Consumer Confidence Report or ask about specific contaminants.