A89/100
RIPON WATER UTILITY — Water Quality Report 2026
Serving 7,716 people · Wisconsin
Water Source
Groundwater
County
—
System ID
WI4200476
Violations
4
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.004 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
2
Violations (last 5yr)
1
Unresolved
1
Health-Related
TIER 2Resolved
Treatment technique violation
When: October 17, 2024 – May 28, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Unresolved
Disinfection byproduct treatment technique failure
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 RIPON WATER UTILITY
Is RIPON WATER UTILITY water safe to drink?
RIPON WATER UTILITY water receives a grade of A (89/100), which is considered excellent. Out of 31 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has RIPON WATER UTILITY detected?
31 contaminants were tested in RIPON WATER UTILITY's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does RIPON WATER UTILITY have any EPA violations?
Yes, RIPON WATER UTILITY has 4 EPA violation(s) on record, with the most recent in 2024. Violation types include TT, Other, MON. 1 are health-based violations.
How many people does RIPON WATER UTILITY serve?
RIPON WATER UTILITY serves approximately 7,716 people, Wisconsin. The system provides water to 1 community: Ripon.
What type of water does RIPON WATER UTILITY provide?
RIPON WATER UTILITY sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is WI4200476.
How does RIPON WATER UTILITY compare to other utilities in Wisconsin?
RIPON WATER UTILITY scores 89/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Wisconsin state page for a full comparison of water systems.