D31/100
TWISP TOWN OF — Water Quality Report 2026
Serving 1,044 people · Washington
Water Source
Groundwater
County
—
System ID
WA5390050
Violations
42
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
2
Violations (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Exceeded the MCL for disinfection byproducts
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: January 1, 2022 – December 31, 2022Enforcement: Resolving — corrective action underway
TIER 3Resolved
Exceeded the MCL for disinfection byproducts
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: January 1, 2022 – December 31, 2022Enforcement: 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 TWISP TOWN OF
Is TWISP TOWN OF water safe to drink?
TWISP TOWN OF water receives a grade of D (31/100), which is considered poor. 0 contaminant(s) exceed EPA legal limits and 42 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has TWISP TOWN OF detected?
1 contaminants were tested in TWISP TOWN OF's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does TWISP TOWN OF have any EPA violations?
Yes, TWISP TOWN OF has 42 EPA violation(s) on record, with the most recent in 2022. Violation types include MR, MON, MCL. 6 are health-based violations.
How many people does TWISP TOWN OF serve?
TWISP TOWN OF serves approximately 1,044 people, Washington.
What type of water does TWISP TOWN OF provide?
TWISP TOWN OF sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is WA5390050.
How does TWISP TOWN OF compare to other utilities in Washington?
TWISP TOWN OF scores 31/100 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.