F0/100
JOHNSTOWN TOWN OF — Water Quality Report 2026
Serving 24,725 people · Colorado
Water Source
Surface Water
County
—
System ID
CO0162418
Violations
93
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
5
Violations (last 5yr)
0
Unresolved
1
Health-Related
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2023 – August 10, 2023Enforcement: Resolving — corrective action underway
TIER 3Resolved
Failed to complete routine monitoring
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: August 1, 2022 – August 31, 2022Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved
Failed treatment technique requirements
When: July 1, 2021 – July 31, 2021Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Missed required monitoring deadline
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: June 1, 2021 – June 30, 2021Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Failed to complete routine monitoring
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: June 1, 2021 – June 30, 2021Rule: Surface Water Treatment 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 JOHNSTOWN TOWN OF
Is JOHNSTOWN TOWN OF water safe to drink?
JOHNSTOWN TOWN OF water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 93 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has JOHNSTOWN TOWN OF detected?
51 contaminants were tested in JOHNSTOWN TOWN OF's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does JOHNSTOWN TOWN OF have any EPA violations?
Yes, JOHNSTOWN TOWN OF has 93 EPA violation(s) on record, with the most recent in 2023. Violation types include Other, MR, TT. 6 are health-based violations.
How many people does JOHNSTOWN TOWN OF serve?
JOHNSTOWN TOWN OF serves approximately 24,725 people, Colorado.
What type of water does JOHNSTOWN TOWN OF provide?
JOHNSTOWN TOWN OF 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 CO0162418.
How does JOHNSTOWN TOWN OF compare to other utilities in Colorado?
JOHNSTOWN TOWN OF scores 0/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our Colorado state page for a full comparison of water systems.