Water Quality in Corwin Springs, MT (59030)

EPA violation data for public water systems serving ZIP code 59030.

Past Health-Based Violations

3 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 11 monitoring/reporting violations.

More violations than 73% of US ZIP codes.

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

1,030

Population

13

Water Systems

14

Violations (5yr)

3

Health-Based

Location

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Water Systems Serving This Area (13)

Camp Mustang

Groundwater 75,816 people served
0 violations

Gardiner Park Co Water Dist

All resolved
Groundwater 700 people served
1 violation (5yr) · All resolved

Gardiner Business Park

All resolved
Groundwater 260 people served
2 violations (5yr) · All resolved

East Gate Work Camp

Groundwater 208 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb)

Cinnabar The

Groundwater 175 people served
0 violations
Lead tested: 15 ppb (limit: 15 ppb)

Ranch Headquarters

Groundwater 85 people served
0 violations
Lead tested: 1 ppb (limit: 15 ppb)

Sphinx Mountain Mb Hm Pk

Groundwater 52 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb)

Jim Bridger Ct And 1st Nat Bank

Purchased groundwater 52 people served
0 violations

The Hub

Groundwater 50 people served
0 violations

Soda Butte Campground

1 health-based
Groundwater 40 people served
5 violations (5yr) · 1 health-based · All resolved

Pray Cafe

All resolved
Groundwater 32 people served
1 violation (5yr) · All resolved

Colter Cg And Cooke Wc

2 health-based
Groundwater 25 people served
5 violations (5yr) · 2 health-based · All resolved

Tvx Mineral Hill Mine Jardine

Surface water 11 people served
0 violations

Contaminants Found

Revised Total Coliform RuleHealth-Based

Missed testing deadlines — not a detection of bacteria.

9 violations
All resolved
Nitrate-NitriteMonitoring
4 violations
All resolved
Consumer Confidence RuleMonitoring

Annual water quality report delivery requirement.

1 violation
All resolved

Lead & Copper Levels

Lead (Pb)

Within limit
1 ppb measured Action level: 15 ppb

Sampled: Jan 2025

How Does This Compare?

Corwin Springs (59030) has more violations than 73% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 14.

Fewer violations 73th 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.

UV Water Purifier

Uses ultraviolet light to neutralize bacteria, viruses, and parasites without chemicals. Ideal for homes with microbial contamination concerns.

Targets:E. coli, Coliform, Giardia, Cryptosporidium

Look for:NSF/ANSI 55 (Class A) 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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