C42/100
Bonners Ferry Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 8,160 residents · Idaho
What's In Bonners Ferry's Tap Water?
1
Contaminants Tested
0
Exceed EPA Limits
1
Above EPA Goals
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2013.
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Water Utility Details
BONNERS FERRY CITY OF
Population Served
3,367
Water Source
Surface Water
System ID
ID1110003
THREE MILE WATER DIST
Population Served
2,458
Water Source
Groundwater
System ID
ID1110028
CABINET MOUNTAINS WATER DIST
Population Served
2,335
Water Source
Groundwater
System ID
ID1110042
Frequently Asked Questions About Bonners Ferry Water
Is Bonners Ferry tap water safe to drink?
Bonners Ferry, Idaho tap water receives a grade of C (42/100), which is considered fair. 1 contaminant(s) exceed EPA maximum contaminant levels and 73 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in Bonners Ferry's water?
Of the 9 contaminants tested in Bonners Ferry's water supply, the most notable include Copper (90th percentile), Lead (90th percentile). 1 contaminant(s) exceed EPA legal limits (MCLs). 2 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Bonners Ferry have any water quality violations?
Yes, Bonners Ferry has 73 EPA violation(s) on record, with the most recent in 2025. Violation types include RPT, MON, MR. 21 of these are health-based violations, which are the most serious category.
Do I need a water filter in Bonners Ferry?
Based on EPA data, using a water filter in Bonners Ferry is recommended. 1 contaminant(s) exceed legal limits. An NSF-certified filter — such as a reverse osmosis or activated carbon system — can effectively reduce many common contaminants. Choose a filter certified to remove the specific contaminants found in your area.
Where does Bonners Ferry's tap water come from?
Bonners Ferry's drinking water is sourced from surface water and supplied by BONNERS FERRY CITY OF and 2 other water system(s). The system serves approximately 8,160 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Bonners Ferry's water tested?
Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. Bonners Ferry's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.
How does Bonners Ferry's water compare to other cities in Idaho?
Bonners Ferry's water quality score of 42/100 earns a grade of C, which is considered fair. This is a below-average score that indicates room for improvement. Visit our Idaho state page to see how all cities in the state compare.
What should I do if I'm concerned about Bonners Ferry's water quality?
If you have concerns about Bonners Ferry's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (BONNERS FERRY CITY OF) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.