Water Quality in NELSONVILLE, OH (45764)
EPA violation data for public water systems serving ZIP code 45764.
43
Total Violations
32
Health-Based
11
Monitoring / Reporting
43
Resolved
What does this mean?
43 of 43 violations have been resolved. 32 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 11 are monitoring or reporting violations (missed testing deadlines or late paperwork — not necessarily a water quality issue). Not all violations mean your water is unsafe. The EPA requires reporting even for minor administrative issues.
Violations Detail (43 total)
| Contaminant | Category | MCL Limit | Measured | Date | Status | Health Effects |
|---|---|---|---|---|---|---|
| TTHM | Health-Based | N/A | 0.091 | Jun 30, 2025 | Resolved | N/A |
| TTHM | Health-Based | N/A | 0.091 | Jun 30, 2025 | Resolved | N/A |
| TTHM | Health-Based | N/A | 0.091 | Jun 30, 2025 | Resolved | N/A |
| TTHM | Health-Based | N/A | 0.1 | Mar 31, 2025 | Resolved | N/A |
| TTHM | Health-Based | N/A | 0.1 | Mar 31, 2025 | Resolved | N/A |
| TTHM | Health-Based | N/A | 0.1 | Mar 31, 2025 | Resolved | N/A |
| TTHM | Health-Based | N/A | 0.1 | Mar 31, 2025 | Resolved | N/A |
| TTHM | Health-Based | N/A | 0.104 | Dec 31, 2024 | Resolved | N/A |
| TTHM | Health-Based | N/A | 0.104 | Dec 31, 2024 | Resolved | N/A |
| TTHM | Health-Based | N/A | 0.104 | Dec 31, 2024 | Resolved | N/A |
Lead & Copper Levels
Violation Timeline
2025(7)
TTHM
02
TTHM
02
TTHM
02
TTHM
02
TTHM
02
TTHM
02
TTHM
02
2024(19)
TTHM
02
TTHM
02
TTHM
02
TTHM
02
TTHM
02
TTHM
02
TTHM
02
TTHM
02
TTHM
02
TTHM
02
TTHM
02
TTHM
02
TTHM
02
TTHM
02
TTHM
02
TTHM
02
Consumer Confidence Rule
72
Consumer Confidence Rule
72
Consumer Confidence Rule
72
How Does This Compare?
NELSONVILLE (45764) has 43 recorded violations, including 32 health-based. All violations have been resolved, which is a positive sign for current water quality. Consider testing your tap water independently for added peace of mind.
Recommended Water Filters
Based on the contaminants detected in your area, these filter types may help improve your water quality.
Activated Carbon Filter
Excellent for removing chlorine, chloramine, and disinfection byproducts like THMs and HAAs. Available as pitcher filters, countertop, or under-sink units.
Targets:THMs, HAAs, Chlorine, Chloramine, Taste & Odor
Look for:NSF/ANSI 42 & 53 certified
Always look for filters certified by NSF International for the specific contaminants you want to remove.