F0/100
NACHES TOWN OF — Water Quality Report 2026
Serving 3,512 people · Washington
Water Source
Groundwater
County
—
System ID
WA5358100
Violations
103
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
3
Violations (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2024 – February 20, 2025Enforcement: Resolving — corrective action underway
TIER 3Resolved
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: January 1, 2022 – December 31, 2022Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved
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: January 1, 2022 – December 31, 2022Rule: Stage 2 DBPREnforcement: 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 NACHES TOWN OF
Is NACHES TOWN OF water safe to drink?
NACHES TOWN OF water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 103 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has NACHES TOWN OF detected?
31 contaminants were tested in NACHES TOWN OF's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does NACHES TOWN OF have any EPA violations?
Yes, NACHES TOWN OF has 103 EPA violation(s) on record, with the most recent in 2024. Violation types include Other, MR, MCL. 8 are health-based violations.
How many people does NACHES TOWN OF serve?
NACHES TOWN OF serves approximately 3,512 people, Washington.
What type of water does NACHES TOWN OF provide?
NACHES TOWN OF sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is WA5358100.
How does NACHES TOWN OF compare to other utilities in Washington?
NACHES TOWN OF scores 0/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our Washington state page for a full comparison of water systems.