Water Quality in Preston, MN (55965)
EPA violation data for public water systems serving ZIP code 55965.
15
Total Violations
0
Health-Based
15
Monitoring / Reporting
15
Resolved
What does this mean?
15 of 15 violations have been resolved. None of these are health-based violations — no contaminant levels exceeded federal safety limits. The remaining 15 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 (15 total)
| Contaminant | Category | MCL Limit | Measured | Date | Status | Health Effects |
|---|---|---|---|---|---|---|
| LEAD AND COPPER RULE REVISIONS | Monitoring | N/A | N/A | Jul 1, 2025 | Resolved | N/A |
| LEAD AND COPPER RULE REVISIONS | Monitoring | N/A | N/A | Jul 1, 2025 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jan 31, 2025 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jan 31, 2025 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jan 31, 2025 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jun 30, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jun 30, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jun 30, 2021 | Resolved | N/A |
Violation Timeline
2025(5)
LEAD AND COPPER RULE REVISIONS
4H
LEAD AND COPPER RULE REVISIONS
4H
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
2021(10)
Lead and Copper Rule
66
Lead and Copper Rule
66
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
Revised Total Coliform Rule
3A
How Does This Compare?
Preston (55965) has 15 recorded violations, none of which are health-based. All violations have been resolved, which is a positive sign for current water quality. 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.