B71/100
PATOKA LAKE REGIONAL WATER — Water Quality Report 2026
Serving 13,503 people · Indiana
Water Source
Surface Water
County
—
System ID
IN5219012
Violations
18
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.007 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2023 – August 21, 2023Enforcement: Resolving — corrective action underway
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 PATOKA LAKE REGIONAL WATER
Is PATOKA LAKE REGIONAL WATER water safe to drink?
PATOKA LAKE REGIONAL WATER water receives a grade of B (71/100), which is considered good. Out of 69 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has PATOKA LAKE REGIONAL WATER detected?
69 contaminants were tested in PATOKA LAKE REGIONAL WATER's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does PATOKA LAKE REGIONAL WATER have any EPA violations?
Yes, PATOKA LAKE REGIONAL WATER has 18 EPA violation(s) on record, with the most recent in 2023. Violation types include Other, RPT, TT. 2 are health-based violations.
How many people does PATOKA LAKE REGIONAL WATER serve?
PATOKA LAKE REGIONAL WATER serves approximately 13,503 people, Indiana. The system provides water to 1 community: Dubois.
What type of water does PATOKA LAKE REGIONAL WATER provide?
PATOKA LAKE REGIONAL WATER 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 IN5219012.
How does PATOKA LAKE REGIONAL WATER compare to other utilities in Indiana?
PATOKA LAKE REGIONAL WATER scores 71/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our Indiana state page for a full comparison of water systems.