Water Quality in SHERIDAN, OR (97378)
EPA violation data for public water systems serving ZIP code 97378.
106
Total Violations
3
Health-Based
103
Monitoring / Reporting
104
Resolved
What does this mean?
104 of 106 violations have been resolved. 3 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 103 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 (106 total)
| Contaminant | Category | MCL Limit | Measured | Date | Status | Health Effects |
|---|---|---|---|---|---|---|
| E. COLI | Monitoring | 0 | N/A | Sep 19, 2025 | Active | Severe gastrointestinal illness; may be fatal in vulnerable populations |
| Public Notice | Monitoring | N/A | N/A | Aug 22, 2025 | Active | N/A |
| Public Notice | Monitoring | N/A | N/A | Aug 22, 2025 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Aug 22, 2025 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Aug 9, 2025 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Aug 9, 2025 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Jun 30, 2025 | Resolved | N/A |
| Lead and Copper 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 |
| Interim Enhanced Surface Water Treatment Rule | Monitoring | N/A | N/A | May 31, 2025 | Resolved | N/A |
Lead & Copper Levels
Violation Timeline
2025(13)
E. COLI
34
Public Notice
75
Public Notice
76
Public Notice
76
Public Notice
76
Public Notice
76
Lead and Copper Rule
52
Lead and Copper Rule
52
Consumer Confidence Rule
71
Interim Enhanced Surface Water Treatment Rule
38
Interim Enhanced Surface Water Treatment Rule
38
Surface Water Treatment Rule
36
Surface Water Treatment Rule
36
2024(21)
TTHM
27
Total Haloacetic Acids (HAA5)
27
Interim Enhanced Surface Water Treatment Rule
38
Surface Water Treatment Rule
36
Surface Water Treatment Rule
36
Total Haloacetic Acids (HAA5)
27
TTHM
27
Surface Water Treatment Rule
36
Interim Enhanced Surface Water Treatment Rule
38
Surface Water Treatment Rule
36
Lead and Copper Rule
52
Consumer Confidence Rule
71
E. COLI
34
Interim Enhanced Surface Water Treatment Rule
38
Surface Water Treatment Rule
36
Surface Water Treatment Rule
36
Surface Water Treatment Rule
36
Interim Enhanced Surface Water Treatment Rule
38
Surface Water Treatment Rule
36
TTHM
27
Total Haloacetic Acids (HAA5)
27
How Does This Compare?
SHERIDAN (97378) has 106 recorded violations, including 3 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
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.