Water Quality in Helena, MT (59601)

EPA violation data for public water systems serving ZIP code 59601.

Active Health Violations

8 health-based violations found in the past 5 years, with at least one still unresolved. Contaminant levels have exceeded federal safety limits. Consider testing your tap water independently.

More violations than 98% of US ZIP codes.

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

31,728

Population

101

Water Systems

144

Violations (5yr)

Health-Based

Location

Loading map...

Water Systems Serving This Area (101)

Helena Water System

3 health-based

Surface water 32,091 people served

3 violations (5yr) · 3 health-based · All resolved

Lead tested: 3 ppb (limit: 15 ppb) ✓

Hellgate Cg Hand Pump No 1

Groundwater 10,000 people served

0 violations

Montana Department Of Highways

Groundwater 860 people served

0 violations

Jefferson Hills Wua

1 health-based

Groundwater 780 people served

4 violations (5yr) · 1 health-based

Lead tested: 1 ppb (limit: 15 ppb) ✓

North Star Pud

All resolved

Groundwater 715 people served

3 violations (5yr) · All resolved

Lead tested: 7 ppb (limit: 15 ppb) ✓

Jim Darcy School District No 1

All resolved

Groundwater 575 people served

1 violation (5yr) · All resolved

Lead tested: 0 ppb (limit: 15 ppb) ✓

Rossiter School District 01

Groundwater 550 people served

0 violations

Lead tested: 4 ppb (limit: 15 ppb) ✓

Warren School District No 1

1 health-based

Groundwater 350 people served

1 violation (5yr) · 1 health-based · All resolved

Lead tested: 3 ppb (limit: 15 ppb) ✓

Circle K Corp

Groundwater 200 people served

0 violations

Hellgate Cg Pressure System

Groundwater 200 people served

0 violations

Ten Mile-Pleansant Valley Wua

Groundwater 170 people served

0 violations

Al Rose Water Co

Surface water 150 people served

0 violations

Drumlummon Exploration Support Facility

Groundwater 105 people served

0 violations

Wheel Inn Bar

Groundwater 104 people served

0 violations

Ponderosa Campground

Groundwater 100 people served

0 violations

White Mill Bar

Groundwater 100 people served

0 violations

Montana Fish & Game-Daily Lake

Surface water 100 people served

0 violations

Indian Road Recreation Area

Groundwater 100 people served

0 violations

Bureau Of Reclamation

Groundwater 100 people served

0 violations

Wegners Market

Groundwater 100 people served

0 violations

Ponderosa Campground

Groundwater 100 people served

0 violations

Camel Mountain Hoa

Groundwater 96 people served

0 violations

Lead tested: 0 ppb (limit: 15 ppb) ✓

Little Angel Daycare And Preschool

Groundwater 80 people served

0 violations

Mitchell Court Apartments

Purchased surface water 80 people served

0 violations

Bootlegger Inn

All resolved

Groundwater 77 people served

1 violation (5yr) · All resolved

Court Sheriff Campground

Groundwater 75 people served

0 violations

Quartz Trailer Court

Groundwater 75 people served

0 violations

Moose Home

Groundwater 75 people served

0 violations

Brass Rail

Groundwater 75 people served

0 violations

Camp Child

2 health-based

Groundwater 72 people served

10 violations (5yr) · 2 health-based

Spring St Trailer Court

Groundwater 65 people served

0 violations

Melrose Bar

All resolved

Groundwater 64 people served

8 violations (5yr) · All resolved

Hellgate Cg Hp #2 - The Point

Groundwater 60 people served

0 violations

Silos Recreation Area

Groundwater 50 people served

0 violations

Cave Bay Campground

Groundwater 50 people served

0 violations

Meadowlark Trailer Court #2

Groundwater 50 people served

0 violations

Wheel Estates Helena

Groundwater 50 people served

0 violations

Kims Marina Trailer Court

Groundwater 50 people served

0 violations

Central Valley Market

Groundwater 50 people served

0 violations

Broadwater Trailer Court

Groundwater 50 people served

0 violations

Cave Bay Campground

Groundwater 50 people served

0 violations

Fish & Game-Chinaman Gulch

Groundwater 50 people served

0 violations

Chinaman'S Campground

Groundwater 50 people served

0 violations

North Forestvale Homeowner Asn

Groundwater 50 people served

0 violations

Wilderness Bar

Groundwater 50 people served

0 violations

The Establishment Restaurant

Groundwater 50 people served

0 violations

Meadowlark Trailer Court #1

Groundwater 50 people served

0 violations

Evergreen Trailer Ct North

Groundwater 50 people served

0 violations

Camp Mimanagish

1 health-based

Groundwater 50 people served

5 violations (5yr) · 1 health-based

Barnett Water Users System #2

Groundwater 50 people served

0 violations

Silver Creek Mobile Home Park

Groundwater 45 people served

0 violations

Camel Mtn Homeowners Mojave Ct

Groundwater 36 people served

0 violations

Anniversary Trailer Court

Groundwater 35 people served

0 violations

Pleasant View Trailer Court

Groundwater 35 people served

0 violations

North Forestvale Homeowner Asn

Groundwater 30 people served

0 violations

Lakeside Village On Hauser

All resolved

Groundwater 30 people served

102 violations (5yr) · All resolved

Resolved

Revised Total Coliform Rule Monitoring

Nov 2023 Resolved

Lead and Copper Rule Monitoring

Jul 2023 Resolved

Atrazine Monitoring

Apr 2023 Resolved

HEXACHLOROBENZENE Monitoring

Apr 2023 Resolved

2,4-D Monitoring

Apr 2023 Resolved

Dalapon Monitoring

Apr 2023 Resolved

Di(2-ethylhexyl) phthalate Monitoring

Apr 2023 Resolved

Methoxychlor Monitoring

Apr 2023 Resolved

Heptachlor epoxide Monitoring

Apr 2023 Resolved

BHC-GAMMA Monitoring

Apr 2023 Resolved

2,4,5-TP Monitoring

Apr 2023 Resolved

Dinoseb Monitoring

Apr 2023 Resolved

LASSO Monitoring

Apr 2023 Resolved

OXAMYL Monitoring

Apr 2023 Resolved

Pentachlorophenol Monitoring

Apr 2023 Resolved

Combined Radium (-226 and -228) Monitoring

Apr 2023 Resolved

Di(2-ethylhexyl) adipate Monitoring

Apr 2023 Resolved

Simazine Monitoring

Apr 2023 Resolved

Benzo(a)pyrene Monitoring

Apr 2023 Resolved

Toxaphene Monitoring

Apr 2023 Resolved

Heptachlor Monitoring

Apr 2023 Resolved

Hexachlorocyclopentadiene Monitoring

Apr 2023 Resolved

Endrin Monitoring

Apr 2023 Resolved

Picloram Monitoring

Apr 2023 Resolved

Gross Alpha, Excl. Radon and U Monitoring

Apr 2023 Resolved

Carbofuran Monitoring

Apr 2023 Resolved

Chlordane Monitoring

Apr 2023 Resolved

Revised Total Coliform Rule Monitoring

Feb 2023 Resolved

Methoxychlor Monitoring

Jan 2023 Resolved

Pentachlorophenol Monitoring

Jan 2023 Resolved

Gross Alpha, Excl. Radon and U Monitoring

Jan 2023 Resolved

Heptachlor epoxide Monitoring

Jan 2023 Resolved

Atrazine Monitoring

Jan 2023 Resolved

Di(2-ethylhexyl) adipate Monitoring

Jan 2023 Resolved

Di(2-ethylhexyl) phthalate Monitoring

Jan 2023 Resolved

Carbofuran Monitoring

Jan 2023 Resolved

Hexachlorocyclopentadiene Monitoring

Jan 2023 Resolved

Heptachlor Monitoring

Jan 2023 Resolved

OXAMYL Monitoring

Jan 2023 Resolved

Dinoseb Monitoring

Jan 2023 Resolved

LASSO Monitoring

Jan 2023 Resolved

Benzo(a)pyrene Monitoring

Jan 2023 Resolved

Endrin Monitoring

Jan 2023 Resolved

Toxaphene Monitoring

Jan 2023 Resolved

Dalapon Monitoring

Jan 2023 Resolved

Simazine Monitoring

Jan 2023 Resolved

Picloram Monitoring

Jan 2023 Resolved

2,4-D Monitoring

Jan 2023 Resolved

HEXACHLOROBENZENE Monitoring

Jan 2023 Resolved

2,4,5-TP Monitoring

Jan 2023 Resolved

Chlordane Monitoring

Jan 2023 Resolved

Combined Radium (-226 and -228) Monitoring

Jan 2023 Resolved

BHC-GAMMA Monitoring

Jan 2023 Resolved

Revised Total Coliform Rule Monitoring

Dec 2022 Resolved

Revised Total Coliform Rule Monitoring

Nov 2022 Resolved

2,4,5-TP Monitoring

Oct 2022 Resolved

Heptachlor epoxide Monitoring

Oct 2022 Resolved

Gross Alpha, Excl. Radon and U Monitoring

Oct 2022 Resolved

Chlordane Monitoring

Oct 2022 Resolved

Picloram Monitoring

Oct 2022 Resolved

Benzo(a)pyrene Monitoring

Oct 2022 Resolved

LASSO Monitoring

Oct 2022 Resolved

BHC-GAMMA Monitoring

Oct 2022 Resolved

Methoxychlor Monitoring

Oct 2022 Resolved

Dinoseb Monitoring

Oct 2022 Resolved

2,4-D Monitoring

Oct 2022 Resolved

Toxaphene Monitoring

Oct 2022 Resolved

Simazine Monitoring

Oct 2022 Resolved

Endrin Monitoring

Oct 2022 Resolved

Hexachlorocyclopentadiene Monitoring

Oct 2022 Resolved

Heptachlor Monitoring

Oct 2022 Resolved

Combined Radium (-226 and -228) Monitoring

Oct 2022 Resolved

Atrazine Monitoring

Oct 2022 Resolved

Di(2-ethylhexyl) adipate Monitoring

Oct 2022 Resolved

Carbofuran Monitoring

Oct 2022 Resolved

HEXACHLOROBENZENE Monitoring

Oct 2022 Resolved

Di(2-ethylhexyl) phthalate Monitoring

Oct 2022 Resolved

OXAMYL Monitoring

Oct 2022 Resolved

Pentachlorophenol Monitoring

Oct 2022 Resolved

Dalapon Monitoring

Oct 2022 Resolved

Tetrachloroethylene Monitoring

Jan 2022 Resolved

Carbon tetrachloride Monitoring

Jan 2022 Resolved

trans-1,2-Dichloroethylene Monitoring

Jan 2022 Resolved

o-Dichlorobenzene Monitoring

Jan 2022 Resolved

Nitrate-Nitrite Monitoring

Jan 2022 Resolved

Toluene Monitoring

Jan 2022 Resolved

1,2,4-Trichlorobenzene Monitoring

Jan 2022 Resolved

Benzene Monitoring

Jan 2022 Resolved

Vinyl chloride Monitoring

Jan 2022 Resolved

DICHLOROMETHANE Monitoring

Jan 2022 Resolved

1,1,2-Trichloroethane Monitoring

Jan 2022 Resolved

Trichloroethylene Monitoring

Jan 2022 Resolved

cis-1,2-Dichloroethylene Monitoring

Jan 2022 Resolved

Ethylbenzene Monitoring

Jan 2022 Resolved

CHLOROBENZENE Monitoring

Jan 2022 Resolved

1,1-Dichloroethylene Monitoring

Jan 2022 Resolved

Xylenes, Total Monitoring

Jan 2022 Resolved

1,2-Dichloroethane Monitoring

Jan 2022 Resolved

Styrene Monitoring

Jan 2022 Resolved

1,2-Dichloropropane Monitoring

Jan 2022 Resolved

1,1,1-Trichloroethane Monitoring

Jan 2022 Resolved

p-Dichlorobenzene Monitoring

Jan 2022 Resolved

Rose'S Trailer Ct.

Groundwater 30 people served

0 violations

Camelot Hoa Eldorado Court

Groundwater 30 people served

0 violations

Fish & Game-St Of Montana

Groundwater 30 people served

0 violations

Jo Bonner Campground

Groundwater 30 people served

0 violations

Fish & Game-St Of Montana

Groundwater 30 people served

0 violations

Sun Garden Mb Hm Pk Helena

Groundwater 30 people served

0 violations

Rose'S Bottled Water

Groundwater 30 people served

0 violations

Tenmile Creek Brewery

All resolved

Groundwater 29 people served

6 violations (5yr) · All resolved

Anniversary Trailer Court

Groundwater 27 people served

0 violations

Fish Wildlife & Parks

Groundwater 25 people served

0 violations

Lewis & Clark Campground

Groundwater 25 people served

0 violations

Silsbee Park

Groundwater 25 people served

0 violations

Cromwell Dixon Campground

Groundwater 25 people served

0 violations

Fish Wildlife & Parks

Groundwater 25 people served

0 violations

Fish Wildlife & Parks

Groundwater 25 people served

0 violations

Wagon Wheel Court

Groundwater 25 people served

0 violations

Fish Wildlife & Parks

Groundwater 25 people served

0 violations

Fish,Wildlife And Parks

Surface water 25 people served

0 violations

Wagon Wheel Court

Groundwater 25 people served

0 violations

U.S.Forest Service

Groundwater 25 people served

0 violations

White Earth Recreation Area

Groundwater 25 people served

0 violations

Canyon Ferry Shop Bldg

Groundwater 25 people served

0 violations

Coffee Mill Espress

Purchased surface water 25 people served

0 violations

Bear Tooth Rec Area

Groundwater 25 people served

0 violations

Western Hills Subdivision

Groundwater 25 people served

0 violations

Mountain Mudd Water Truck Helena

Purchased groundwater 25 people served

0 violations

E And B Trailer Court

Groundwater 25 people served

0 violations

Lewis & Clark Campground

Groundwater 25 people served

0 violations

Fish Wildlife & Parks

Groundwater 25 people served

0 violations

Fish Wildlife & Parks

Groundwater 25 people served

0 violations

Golden Estates South

Groundwater 25 people served

0 violations

Hellgate Cg Hand Pump No 1

Groundwater 25 people served

0 violations

Fish Wildlife & Parks

Groundwater 25 people served

0 violations

Gold Creek Events/Whistle Stop Llc Unapp

Groundwater 25 people served

0 violations

Fish Wildlife & Parks

Groundwater 25 people served

0 violations

Hellgate Cg Hand Pump No 2

Groundwater 25 people served

0 violations

Fish Wildlife & Parks

Groundwater 25 people served

0 violations

Indian Road Rec Area

Groundwater 25 people served

0 violations

Fish Wildlife & Parks

Groundwater 25 people served

0 violations

Canyon Ferry Shop Bldg

Groundwater 25 people served

0 violations

Whistle Stop The

Groundwater 25 people served

0 violations

Fish Wildlife & Parks

Groundwater 25 people served

0 violations

Mcdonald Pass Court

Groundwater 11 people served

0 violations

Humphreys Cyberstop Cafe

Groundwater 0

0 violations

Meriwether Campground

Groundwater 0

0 violations

Contaminants Found

Revised Total Coliform RuleHealth-Based

Missed testing deadlines — not a detection of bacteria.

29 violations

Has active

Groundwater RuleHealth-Based

6 violations

All resolved

Total Haloacetic Acids (HAA5)Health-Based

4 violations

All resolved

Lead and Copper RuleMonitoring

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

3 violations

Has active

Nitrate-NitriteMonitoring

3 violations

All resolved

AtrazineMonitoring

3 violations

All resolved

HEXACHLOROBENZENEMonitoring

3 violations

All resolved

2,4-DMonitoring

3 violations

All resolved

DalaponMonitoring

3 violations

All resolved

Di(2-ethylhexyl) phthalateMonitoring

3 violations

All resolved

MethoxychlorMonitoring

3 violations

All resolved

Heptachlor epoxideMonitoring

3 violations

All resolved

BHC-GAMMAMonitoring

3 violations

All resolved

2,4,5-TPMonitoring

3 violations

All resolved

DinosebMonitoring

3 violations

All resolved

LASSOMonitoring

3 violations

All resolved

OXAMYLMonitoring

3 violations

All resolved

PentachlorophenolMonitoring

3 violations

All resolved

Combined Radium (-226 and -228)Monitoring

3 violations

All resolved

Di(2-ethylhexyl) adipateMonitoring

3 violations

All resolved

SimazineMonitoring

3 violations

All resolved

Benzo(a)pyreneMonitoring

3 violations

All resolved

ToxapheneMonitoring

3 violations

All resolved

HeptachlorMonitoring

3 violations

All resolved

HexachlorocyclopentadieneMonitoring

3 violations

All resolved

EndrinMonitoring

3 violations

All resolved

PicloramMonitoring

3 violations

All resolved

Gross Alpha, Excl. Radon and UMonitoring

3 violations

All resolved

CarbofuranMonitoring

3 violations

All resolved

ChlordaneMonitoring

3 violations

All resolved

Consumer Confidence RuleMonitoring

Annual water quality report delivery requirement.

2 violations

All resolved

TTHMMonitoring

1 violation

All resolved

TetrachloroethyleneMonitoring

1 violation

All resolved

Carbon tetrachlorideMonitoring

1 violation

All resolved

trans-1,2-DichloroethyleneMonitoring

1 violation

All resolved

o-DichlorobenzeneMonitoring

1 violation

All resolved

TolueneMonitoring

1 violation

All resolved

1,2,4-TrichlorobenzeneMonitoring

1 violation

All resolved

BenzeneMonitoring

1 violation

All resolved

Vinyl chlorideMonitoring

1 violation

All resolved

DICHLOROMETHANEMonitoring

1 violation

All resolved

1,1,2-TrichloroethaneMonitoring

1 violation

All resolved

TrichloroethyleneMonitoring

1 violation

All resolved

cis-1,2-DichloroethyleneMonitoring

1 violation

All resolved

EthylbenzeneMonitoring

1 violation

All resolved

CHLOROBENZENEMonitoring

1 violation

All resolved

1,1-DichloroethyleneMonitoring

1 violation

All resolved

Xylenes, TotalMonitoring

1 violation

All resolved

1,2-DichloroethaneMonitoring

1 violation

All resolved

StyreneMonitoring

1 violation

All resolved

1,2-DichloropropaneMonitoring

1 violation

All resolved

1,1,1-TrichloroethaneMonitoring

1 violation

All resolved

p-DichlorobenzeneMonitoring

1 violation

All resolved

Lead & Copper Levels

Lead (Pb)

Within limit

0 ppb measured Action level: 15 ppb

Sampled: Jan 2025

How Does This Compare?

Helena (59601) has more violations than 98% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 144.

Fewer violations 98th 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

NSF Certified Products → EPA Safe Drinking Water Guide →

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

NSF Certified Products → EPA Safe Drinking Water Guide →

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.