Water Quality in HANFORD, CA (93230)
EPA violation data for public water systems serving ZIP code 93230.
36
Total Violations
28
Health-Based
8
Monitoring / Reporting
32
Resolved
What does this mean?
32 of 36 violations have been resolved. 28 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 8 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 (36 total)
| Contaminant | Category | MCL Limit | Measured | Date | Status | Health Effects |
|---|---|---|---|---|---|---|
| LEAD AND COPPER RULE REVISIONS | Health-Based | N/A | N/A | Oct 16, 2024 | Active | N/A |
| LEAD AND COPPER RULE REVISIONS | Monitoring | N/A | N/A | Oct 16, 2024 | Active | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Sep 30, 2024 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Sep 30, 2024 | Resolved | N/A |
| Arsenic | Health-Based | N/A | 0.032 | Mar 31, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.031 | Dec 31, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Lead and Copper Rule | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Arsenic | Health-Based | N/A | 0.032 | Sep 30, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Lead and Copper Rule | Monitoring | N/A | N/A | Sep 30, 2023 | Active | N/A |
Lead & Copper Levels
Violation Timeline
2024(5)
LEAD AND COPPER RULE REVISIONS
2E
LEAD AND COPPER RULE REVISIONS
4G
Lead and Copper Rule
52
Lead and Copper Rule
52
Arsenic
02
2023(8)
Arsenic
02
Lead and Copper Rule
52
Lead and Copper Rule
52
Arsenic
02
Lead and Copper Rule
52
Arsenic
02
Lead and Copper Rule
52
Arsenic
02
How Does This Compare?
HANFORD (93230) has 36 recorded violations, including 28 health-based. 4 remain unresolved. 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.
Reverse Osmosis System
Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.
Targets:Lead, Copper, Arsenic, Mercury, Cadmium
Look for:NSF/ANSI 58 certified
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.