Water Quality in DEDHAM, IA (51440)
EPA violation data for public water systems serving ZIP code 51440.
45
Total Violations
0
Health-Based
45
Monitoring / Reporting
43
Resolved
What does this mean?
43 of 45 violations have been resolved. None of these are health-based violations — no contaminant levels exceeded federal safety limits. The remaining 45 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 (45 total)
| Contaminant | Category | MCL Limit | Measured | Date | Status | Health Effects |
|---|---|---|---|---|---|---|
| Total Haloacetic Acids (HAA5) | Monitoring | N/A | N/A | Jul 31, 2025 | Resolved | N/A |
| TTHM | Monitoring | N/A | N/A | Jul 31, 2025 | Resolved | N/A |
| Consumer Confidence Rule | Monitoring | N/A | N/A | Jun 30, 2025 | Resolved | N/A |
| Consumer Confidence Rule | Monitoring | N/A | N/A | Jun 30, 2025 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | May 31, 2025 | Active | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Sep 30, 2024 | Active | N/A |
| TTHM | Monitoring | N/A | N/A | Jul 31, 2023 | Resolved | N/A |
| TTHM | Monitoring | N/A | N/A | Jul 31, 2023 | Resolved | N/A |
| TTHM | Monitoring | N/A | N/A | Jul 31, 2023 | Resolved | N/A |
| TTHM | Monitoring | N/A | N/A | Jul 31, 2023 | Resolved | N/A |
Lead & Copper Levels
Violation Timeline
2025(5)
Total Haloacetic Acids (HAA5)
27
TTHM
27
Consumer Confidence Rule
71
Consumer Confidence Rule
71
Lead and Copper Rule
52
2024(1)
Lead and Copper Rule
66
How Does This Compare?
DEDHAM (51440) has 45 recorded violations, none of which are health-based. 2 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.