Water Quality in GRANGEVILLE, ID (83530)
EPA violation data for public water systems serving ZIP code 83530.
26
Total Violations
8
Health-Based
18
Monitoring / Reporting
20
Resolved
What does this mean?
20 of 26 violations have been resolved. 8 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 18 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 (26 total)
| Contaminant | Category | MCL Limit | Measured | Date | Status | Health Effects |
|---|---|---|---|---|---|---|
| Total Haloacetic Acids (HAA5) | Monitoring | N/A | N/A | Dec 31, 2024 | Active | N/A |
| TTHM | Monitoring | N/A | N/A | Dec 31, 2024 | Active | N/A |
| E. COLI | Monitoring | 0 | N/A | Jul 7, 2024 | Active | Severe gastrointestinal illness; may be fatal in vulnerable populations |
| E. COLI | Monitoring | 0 | N/A | Jul 7, 2024 | Active | Severe gastrointestinal illness; may be fatal in vulnerable populations |
| Revised Total Coliform Rule | Health-Based | N/A | N/A | Jan 31, 2024 | Resolved | N/A |
| Revised Total Coliform Rule | Health-Based | N/A | N/A | Jan 31, 2024 | Resolved | N/A |
| Revised Total Coliform Rule | Health-Based | N/A | N/A | Jan 31, 2024 | Resolved | N/A |
| Revised Total Coliform Rule | Health-Based | N/A | N/A | Jan 31, 2024 | Resolved | N/A |
| Revised Total Coliform Rule | Health-Based | N/A | N/A | Dec 31, 2023 | Resolved | N/A |
| Revised Total Coliform Rule | Health-Based | N/A | N/A | Dec 31, 2023 | Resolved | N/A |
Lead & Copper Levels
Violation Timeline
2024(8)
Total Haloacetic Acids (HAA5)
27
TTHM
27
E. COLI
34
E. COLI
34
Revised Total Coliform Rule
1A
Revised Total Coliform Rule
1A
Revised Total Coliform Rule
1A
Revised Total Coliform Rule
1A
2023(13)
Revised Total Coliform Rule
1A
Revised Total Coliform Rule
1A
Revised Total Coliform Rule
1A
Revised Total Coliform Rule
1A
Groundwater Rule
31
Groundwater Rule
31
Groundwater Rule
31
Chlorine
27
Chlorine
27
Chlorine
27
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
How Does This Compare?
GRANGEVILLE (83530) has 26 recorded violations, including 8 health-based. 6 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.
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.