D28/100
CHEWELAH WATER DEPT SOUTH — Water Quality Report 2026
Serving 2,615 people · Washington
Water Source
Groundwater
County
—
System ID
WA5312750
Violations
61
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.003 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
2
Violations (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2023 – September 21, 2023Enforcement: Resolving — corrective action underway
TIER 3Resolved
Monitoring Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: September 1, 2021 – September 30, 2021Rule: Total Coliform RuleEnforcement: 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 CHEWELAH WATER DEPT SOUTH
Is CHEWELAH WATER DEPT SOUTH water safe to drink?
CHEWELAH WATER DEPT SOUTH water receives a grade of D (28/100), which is considered poor. 0 contaminant(s) exceed EPA legal limits and 61 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has CHEWELAH WATER DEPT SOUTH detected?
1 contaminants were tested in CHEWELAH WATER DEPT SOUTH's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does CHEWELAH WATER DEPT SOUTH have any EPA violations?
Yes, CHEWELAH WATER DEPT SOUTH has 61 EPA violation(s) on record, with the most recent in 2023. Violation types include Other, MON, MR. 2 are health-based violations.
How many people does CHEWELAH WATER DEPT SOUTH serve?
CHEWELAH WATER DEPT SOUTH serves approximately 2,615 people, Washington.
What type of water does CHEWELAH WATER DEPT SOUTH provide?
CHEWELAH WATER DEPT SOUTH sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is WA5312750.
How does CHEWELAH WATER DEPT SOUTH compare to other utilities in Washington?
CHEWELAH WATER DEPT SOUTH scores 28/100 with a grade of D (poor). This score suggests significant water quality concerns relative to other utilities. Visit our Washington state page for a full comparison of water systems.