A83/100
SHAWANO LK SAN DIST 1 — Water Quality Report 2026
Serving 4,950 people · Wisconsin
Water Source
Groundwater
County
—
System ID
WI4590457
Violations
6
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | < 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2019.
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 SHAWANO LK SAN DIST 1
Is SHAWANO LK SAN DIST 1 water safe to drink?
SHAWANO LK SAN DIST 1 water receives a grade of A (83/100), 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 SHAWANO LK SAN DIST 1 detected?
31 contaminants were tested in SHAWANO LK SAN DIST 1's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does SHAWANO LK SAN DIST 1 have any EPA violations?
Yes, SHAWANO LK SAN DIST 1 has 6 EPA violation(s) on record, with the most recent in 2019. Violation types include TT, Other, MR. 2 are health-based violations.
How many people does SHAWANO LK SAN DIST 1 serve?
SHAWANO LK SAN DIST 1 serves approximately 4,950 people, Wisconsin. The system provides water to 1 community: Shawano.
What type of water does SHAWANO LK SAN DIST 1 provide?
SHAWANO LK SAN DIST 1 sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is WI4590457.
How does SHAWANO LK SAN DIST 1 compare to other utilities in Wisconsin?
SHAWANO LK SAN DIST 1 scores 83/100 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.