C59/100
WEISER CITY OF — Water Quality Report 2026
Serving 5,630 people · Idaho
Water Source
Surface Water
County
—
System ID
ID3440011
Violations
41
Contaminant Test Results
EPA Violation History
2
Violations (last 5yr)
2
Unresolved
0
Health-Related
TIER 3Unresolved
Failed Level 2 Assessment under Revised Total Coliform Rule
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: July 1, 2024 – September 30, 2024Rule: Stage 2 DBPREnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Unresolved
Failed Level 2 Assessment under Revised Total Coliform Rule
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: July 1, 2024 – September 30, 2024Rule: Stage 2 DBPREnforcement: Informal — resolved cooperativelyVerify on EPA.gov
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
Frequently Asked Questions About WEISER CITY OF
Is WEISER CITY OF water safe to drink?
WEISER CITY OF water receives a grade of C (59/100), which is considered fair. 0 contaminant(s) exceed EPA legal limits and 41 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has WEISER CITY OF detected?
31 contaminants were tested in WEISER CITY OF's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does WEISER CITY OF have any EPA violations?
Yes, WEISER CITY OF has 41 EPA violation(s) on record, with the most recent in 2024. Violation types include MR, MON.
How many people does WEISER CITY OF serve?
WEISER CITY OF serves approximately 5,630 people, Idaho.
What type of water does WEISER CITY OF provide?
WEISER CITY OF sources its water from surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is ID3440011.
How does WEISER CITY OF compare to other utilities in Idaho?
WEISER CITY OF scores 59/100 with a grade of C (fair). This score indicates room for improvement compared to other utilities. Visit our Idaho state page for a full comparison of water systems.