Water Quality in Harlem, MT (59526)

EPA violation data for public water systems serving ZIP code 59526.

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

2,319

Population

12

Water Systems

59

Violations (5yr)

47

Health-Based

Location

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Water Systems Serving This Area (12)

Fort Belknap Agency Water System

25 health-based
Surface water 2,100 people served
26 violations (5yr) · 25 health-based · All resolved
Lead tested: 1 ppb (limit: 15 ppb)

Hays/White Cow Canyon Ws

Groundwater 840 people served
0 violations

Harlem City Of

22 health-based
Surface water 820 people served
32 violations (5yr) · 22 health-based

Fort Belknap Indian Agency

Surface water 750 people served
0 violations

Mnihnapa Water System

Groundwater 220 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb)

Mission Housing Water System

Groundwater 170 people served
0 violations

Agnes Leggins

Groundwater 150 people served
0 violations

Old Hays

Groundwater 80 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb)

North Harlem Colony

Groundwater 42 people served
0 violations
Lead tested: 2 ppb (limit: 15 ppb)

Lodgepole (Jenny Grey) Sr Ctr

Groundwater 35 people served
0 violations

St. Pauls Mission School Water

All resolved
Groundwater 11 people served
1 violation (5yr) · All resolved

Lodgepole Elementary School

Groundwater 0
0 violations

Contaminants Found

TTHMHealth-Based
32 violations
Has active
CARBON, TOTALHealth-Based
7 violations
All resolved
Revised Total Coliform RuleHealth-Based

Missed testing deadlines — not a detection of bacteria.

4 violations
Has active
Total Haloacetic Acids (HAA5)Health-Based
3 violations
All resolved
Long Term 2 Enhanced Surface Water Treatment RuleHealth-Based
1 violation
All resolved
Consumer Confidence RuleMonitoring

Annual water quality report delivery requirement.

4 violations
All resolved
Lead and Copper RuleMonitoring

Lead and copper testing requirement. Lead exposure can cause developmental harm in children.

2 violations
Has active
DICHLOROMETHANEMonitoring
1 violation
All resolved

Lead & Copper Levels

Lead (Pb)

Within limit
0 ppb measured Action level: 15 ppb

Sampled: Jan 2024

How Does This Compare?

Harlem (59526) has more violations than 92% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 59.

Fewer violations 92th 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

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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