Water Quality in EDGEMONT, SD (57735)
EPA violation data for public water systems serving ZIP code 57735.
36
Total Violations
6
Health-Based
30
Monitoring / Reporting
35
Resolved
What does this mean?
35 of 36 violations have been resolved. 6 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 30 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 |
|---|---|---|---|---|---|---|
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Aug 31, 2025 | Resolved | N/A |
| Combined Uranium | Monitoring | N/A | N/A | Jun 30, 2025 | Resolved | N/A |
| Combined Radium (-226 and -228) | Monitoring | N/A | N/A | Jun 30, 2025 | Resolved | N/A |
| Gross Alpha, Excl. Radon and U | Monitoring | N/A | N/A | Jun 30, 2025 | Resolved | N/A |
| Gross Alpha, Excl. Radon and U | Health-Based | N/A | 16 | Jun 30, 2025 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Mar 1, 2025 | Active | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Apr 30, 2024 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Apr 30, 2024 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Apr 30, 2024 | Resolved | N/A |
| Chlorine | Monitoring | N/A | N/A | Mar 31, 2024 | Resolved | Eye and nose irritation; stomach discomfort |
Lead & Copper Levels
Violation Timeline
2025(6)
Revised Total Coliform Rule
3A
Combined Uranium
03
Combined Radium (-226 and -228)
03
Gross Alpha, Excl. Radon and U
03
Gross Alpha, Excl. Radon and U
02
Public Notice
75
2024(11)
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Chlorine
27
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
How Does This Compare?
EDGEMONT (57735) has 36 recorded violations, including 6 health-based. 1 remains 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.
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.