A92/100
CO WATER DIST OF BILLINGS HEIGHTS — Water Quality Report 2026
Serving 12,000 people · Montana
Water Source
Purchased Surface Water
County
—
System ID
MT0000155
Violations
5
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, 2025 – July 18, 2025Enforcement: Resolving — corrective action underway
TIER 3Resolved
Failed to issue ongoing public notification
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 1, 2024 – July 25, 2025Rule: Ground Water 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 CO WATER DIST OF BILLINGS HEIGHTS
Is CO WATER DIST OF BILLINGS HEIGHTS water safe to drink?
CO WATER DIST OF BILLINGS HEIGHTS water receives a grade of A (92/100), which is considered excellent. 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 CO WATER DIST OF BILLINGS HEIGHTS detected?
69 contaminants were tested in CO WATER DIST OF BILLINGS HEIGHTS's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does CO WATER DIST OF BILLINGS HEIGHTS have any EPA violations?
Yes, CO WATER DIST OF BILLINGS HEIGHTS has 5 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, MR.
How many people does CO WATER DIST OF BILLINGS HEIGHTS serve?
CO WATER DIST OF BILLINGS HEIGHTS serves approximately 12,000 people, Montana. The system provides water to 1 community: Billings.
What type of water does CO WATER DIST OF BILLINGS HEIGHTS provide?
CO WATER DIST OF BILLINGS HEIGHTS sources its water from purchased surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is MT0000155.
How does CO WATER DIST OF BILLINGS HEIGHTS compare to other utilities in Montana?
CO WATER DIST OF BILLINGS HEIGHTS scores 92/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Montana state page for a full comparison of water systems.