Water Quality in Colstrip, MT (59323)

EPA violation data for public water systems serving ZIP code 59323.

Past Health-Based Violations

2 health-based violations were found in the past 5 years, meaning contaminant levels exceeded federal safety limits. All have since been resolved. There are also 6 monitoring/reporting violations.

More violations than 62% of US ZIP codes.

Based on EPA compliance data. Not a substitute for an official water quality report from your utility.

2,101

Population

10

Water Systems

8

Violations (5yr)

2

Health-Based

Location

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Water Systems Serving This Area (10)

Colstrip City Of

2 health-based
Surface water 2,350 people served
8 violations (5yr) · 2 health-based · All resolved
Lead tested: 1 ppb (limit: 15 ppb)

Western Energy Company

Groundwater 200 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb)

B & R Village

Groundwater 125 people served
0 violations

Green Star Mobile Home Village

Purchased surface water 75 people served
0 violations

Big Sky Coal Company Colstrip

Groundwater 57 people served
0 violations

Food And Beverage Depot

Groundwater 40 people served
0 violations

Snider Trailer Court

Groundwater 32 people served
0 violations

Colstrip Ice And Service

Purchased surface water 30 people served
0 violations

Coal Corral Colstrip

Groundwater 25 people served
0 violations

Colstrip Moose Lodge No 2190

Groundwater 0
0 violations

Contaminants Found

Surface Water Treatment RuleHealth-Based
2 violations
All resolved
TTHMHealth-Based
2 violations
All resolved
Total Haloacetic Acids (HAA5)Monitoring
1 violation
All resolved
Revised Total Coliform RuleMonitoring

Missed testing deadlines — not a detection of bacteria.

1 violation
All resolved

Lead & Copper Levels

Lead (Pb)

Within limit
1 ppb measured Action level: 15 ppb

Sampled: Jan 2023

How Does This Compare?

Colstrip (59323) has more violations than 62% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 8.

Fewer violations 62th percentile More violations

Recommended Water Filters

Based on health-based violations detected in your area, these filter types are commonly used to address similar contaminants. Consult your water utility's Consumer Confidence Report for the most current data.

Activated Carbon Filter

Excellent for removing chlorine, chloramine, and disinfection byproducts like THMs and HAAs. Available as pitcher filters, countertop, or under-sink units.

Targets:THMs, HAAs, Chlorine, Chloramine, Taste & Odor

Look for:NSF/ANSI 42 & 53 certified

Always look for filters certified by NSF International for the specific contaminants you want to remove. This is general educational information, not an endorsement of any specific product.

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