F0/100
NORTHWESTERN W AND SD - MCCOMB — Water Quality Report 2026
Serving 1,650 people · Ohio
Water Source
Purchased Surface Water
County
—
System ID
OH3200411
Violations
45
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 270.00 mg/L | 1.30 mg/L | Over Limit |
chlorate | 249.01 µg/L | — | Above Goal |
EPA Violation History
8
Violations (last 5yr)
0
Unresolved
7
Health-Related
TIER 3Resolved
Surface water treatment technique failure
When: July 31, 2024 – June 20, 2025Enforcement: Resolving — corrective action underway
TIER 2Resolved
Exceeded the Maximum Contaminant Level (running average)
When: January 1, 2024 – March 31, 2024Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
TIER 2Resolved
Exceeded the Maximum Contaminant Level (running average)
When: October 1, 2023 – December 31, 2023Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
TIER 2Resolved
Exceeded the Maximum Contaminant Level (running average)
When: July 1, 2023 – September 30, 2023Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
TIER 2Resolved
Exceeded the Maximum Contaminant Level (running average)
When: April 1, 2023 – June 30, 2023Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
TIER 2Resolved
Exceeded the Maximum Contaminant Level (running average)
When: January 1, 2023 – March 31, 2023Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
TIER 2Resolved
Exceeded the Maximum Contaminant Level (running average)
When: October 1, 2022 – December 31, 2022Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
TIER 2Resolved
Exceeded the Maximum Contaminant Level (running average)
When: July 1, 2022 – September 30, 2022Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Frequently Asked Questions About NORTHWESTERN W AND SD - MCCOMB
Is NORTHWESTERN W AND SD - MCCOMB water safe to drink?
NORTHWESTERN W AND SD - MCCOMB water receives a grade of F (0/100), which is considered failing. 1 contaminant(s) exceed EPA legal limits and 45 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has NORTHWESTERN W AND SD - MCCOMB detected?
28 contaminants were tested in NORTHWESTERN W AND SD - MCCOMB's water. Notable contaminants include Copper (90th percentile), chlorate. 1 exceed EPA legal limits (MCLs). 2 exceed EPA health goals (MCLGs).
Does NORTHWESTERN W AND SD - MCCOMB have any EPA violations?
Yes, NORTHWESTERN W AND SD - MCCOMB has 45 EPA violation(s) on record, with the most recent in 2024. Violation types include Other, MCL, MR. 23 are health-based violations.
How many people does NORTHWESTERN W AND SD - MCCOMB serve?
NORTHWESTERN W AND SD - MCCOMB serves approximately 1,650 people, Ohio.
What type of water does NORTHWESTERN W AND SD - MCCOMB provide?
NORTHWESTERN W AND SD - MCCOMB sources its water from purchased surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is OH3200411.
How does NORTHWESTERN W AND SD - MCCOMB compare to other utilities in Ohio?
NORTHWESTERN W AND SD - MCCOMB scores 0/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our Ohio state page for a full comparison of water systems.