Water Quality in KEYSTONE, IN (46759)
EPA violation data for public water systems serving ZIP code 46759.
81
Total Violations
0
Health-Based
81
Monitoring / Reporting
78
Resolved
What does this mean?
78 of 81 violations have been resolved. None of these are health-based violations — no contaminant levels exceeded federal safety limits. The remaining 81 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 (81 total)
| Contaminant | Category | MCL Limit | Measured | Date | Status | Health Effects |
|---|---|---|---|---|---|---|
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Apr 16, 2025 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Apr 16, 2025 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Apr 16, 2025 | Resolved | N/A |
| 1,1,1-Trichloroethane | Monitoring | N/A | N/A | Dec 31, 2024 | Resolved | N/A |
| 1,2,4-Trichlorobenzene | Monitoring | N/A | N/A | Dec 31, 2024 | Resolved | N/A |
| Ethylbenzene | Monitoring | N/A | N/A | Dec 31, 2024 | Resolved | N/A |
| p-Dichlorobenzene | Monitoring | N/A | N/A | Dec 31, 2024 | Resolved | N/A |
| p-Dichlorobenzene | Monitoring | N/A | N/A | Dec 31, 2024 | Resolved | N/A |
| p-Dichlorobenzene | Monitoring | N/A | N/A | Dec 31, 2024 | Resolved | N/A |
| 1,1,1-Trichloroethane | Monitoring | N/A | N/A | Dec 31, 2024 | Resolved | N/A |
Lead & Copper Levels
Violation Timeline
2025(3)
Revised Total Coliform Rule
5A
Revised Total Coliform Rule
5A
Revised Total Coliform Rule
5A
2024(74)
1,1,1-Trichloroethane
03
1,2,4-Trichlorobenzene
03
Ethylbenzene
03
p-Dichlorobenzene
03
p-Dichlorobenzene
03
p-Dichlorobenzene
03
1,1,1-Trichloroethane
03
Ethylbenzene
03
1,1,1-Trichloroethane
03
Xylenes, Total
03
Xylenes, Total
03
Xylenes, Total
03
Carbon tetrachloride
03
Carbon tetrachloride
03
Carbon tetrachloride
03
Benzene
03
Benzene
03
Benzene
03
Ethylbenzene
03
1,2-Dichloroethane
03
1,2-Dichloroethane
03
1,2-Dichloropropane
03
1,2-Dichloropropane
03
1,2-Dichloropropane
03
1,1,2-Trichloroethane
03
1,1,2-Trichloroethane
03
1,1,2-Trichloroethane
03
Toluene
03
Toluene
03
Toluene
03
Styrene
03
Styrene
03
Styrene
03
Lead and Copper Rule
51
Lead and Copper Rule
51
Lead and Copper Rule
51
cis-1,2-Dichloroethylene
03
cis-1,2-Dichloroethylene
03
cis-1,2-Dichloroethylene
03
DICHLOROMETHANE
03
DICHLOROMETHANE
03
DICHLOROMETHANE
03
1,1-Dichloroethylene
03
1,1-Dichloroethylene
03
1,1-Dichloroethylene
03
Trichloroethylene
03
Trichloroethylene
03
Trichloroethylene
03
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
1,2,4-Trichlorobenzene
03
Vinyl chloride
03
1,2,4-Trichlorobenzene
03
o-Dichlorobenzene
03
o-Dichlorobenzene
03
o-Dichlorobenzene
03
Tetrachloroethylene
03
Tetrachloroethylene
03
Tetrachloroethylene
03
CHLOROBENZENE
03
CHLOROBENZENE
03
CHLOROBENZENE
03
trans-1,2-Dichloroethylene
03
trans-1,2-Dichloroethylene
03
trans-1,2-Dichloroethylene
03
Vinyl chloride
03
Vinyl chloride
03
1,2-Dichloroethane
03
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
5A
Revised Total Coliform Rule
5A
Revised Total Coliform Rule
5A
How Does This Compare?
KEYSTONE (46759) has 81 recorded violations, none of which are health-based. 3 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
UV Water Purifier
Uses ultraviolet light to neutralize bacteria, viruses, and parasites without chemicals. Ideal for homes with microbial contamination concerns.
Targets:E. coli, Coliform, Giardia, Cryptosporidium
Look for:NSF/ANSI 55 (Class A) certified
Always look for filters certified by NSF International for the specific contaminants you want to remove.