Water Quality in MADERA, CA (93636)
EPA violation data for public water systems serving ZIP code 93636.
63
Total Violations
2
Health-Based
61
Monitoring / Reporting
60
Resolved
What does this mean?
60 of 63 violations have been resolved. 2 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 61 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 (63 total)
| Contaminant | Category | MCL Limit | Measured | Date | Status | Health Effects |
|---|---|---|---|---|---|---|
| Vinyl chloride | Monitoring | N/A | N/A | Dec 31, 2024 | Resolved | Increased risk of cancer |
| Xylenes, Total | Monitoring | N/A | N/A | Dec 31, 2024 | Resolved | N/A |
| Carbon tetrachloride | Monitoring | N/A | N/A | Dec 31, 2024 | Resolved | Liver problems; increased risk of cancer |
| Carbon tetrachloride | Monitoring | N/A | N/A | Dec 31, 2024 | Resolved | Liver problems; increased risk of cancer |
| Trichloroethylene | Monitoring | N/A | N/A | Dec 31, 2024 | Resolved | Liver problems; increased risk of cancer |
| Trichloroethylene | Monitoring | N/A | N/A | Dec 31, 2024 | Resolved | Liver problems; increased risk of cancer |
| Tetrachloroethylene | Monitoring | N/A | N/A | Dec 31, 2024 | Resolved | Liver problems; increased risk of cancer |
| Tetrachloroethylene | Monitoring | N/A | N/A | Dec 31, 2024 | Resolved | Liver problems; increased risk of cancer |
| Benzene | Monitoring | N/A | N/A | Dec 31, 2024 | Resolved | Anemia; decrease in blood platelets; increased risk of cancer |
| Benzene | Monitoring | N/A | N/A | Dec 31, 2024 | Resolved | Anemia; decrease in blood platelets; increased risk of cancer |
Lead & Copper Levels
Violation Timeline
2024(55)
Vinyl chloride
03
Xylenes, Total
03
Carbon tetrachloride
03
Carbon tetrachloride
03
Trichloroethylene
03
Trichloroethylene
03
Tetrachloroethylene
03
Tetrachloroethylene
03
Benzene
03
Benzene
03
Atrazine
03
Atrazine
03
1,2,4-Trichlorobenzene
03
Vinyl chloride
03
cis-1,2-Dichloroethylene
03
cis-1,2-Dichloroethylene
03
DICHLOROMETHANE
03
DICHLOROMETHANE
03
o-Dichlorobenzene
03
o-Dichlorobenzene
03
p-Dichlorobenzene
03
p-Dichlorobenzene
03
1,1-Dichloroethylene
03
1,1-Dichloroethylene
03
trans-1,2-Dichloroethylene
03
trans-1,2-Dichloroethylene
03
1,2-Dichloroethane
03
1,2-Dichloroethane
03
1,1,2-Trichloroethane
03
1,1,2-Trichloroethane
03
Toluene
03
Toluene
03
Ethylbenzene
03
Ethylbenzene
03
Styrene
03
Styrene
03
ETHYLENE DIBROMIDE
03
ETHYLENE DIBROMIDE
03
LASSO
03
LASSO
03
CHLOROBENZENE
03
Xylenes, Total
03
1,2-Dichloropropane
03
1,2-Dichloropropane
03
1,2-DIBROMO-3-CHLOROPROPANE
03
1,2-DIBROMO-3-CHLOROPROPANE
03
1,1,1-Trichloroethane
03
1,1,1-Trichloroethane
03
Simazine
03
Simazine
03
CHLOROBENZENE
03
1,2,4-Trichlorobenzene
03
LEAD AND COPPER RULE REVISIONS
2E
LEAD AND COPPER RULE REVISIONS
4G
Nitrate
02
2022(7)
Nitrate
03
Nitrate
03
Nitrate
03
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
How Does This Compare?
MADERA (93636) has 63 recorded violations, including 2 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.