H

Helena, MT

—no score

Contamination score

Higher = more contaminated vs. other cities.

⚠️1 health-based violation on record.
0
Water sources
51
Violations
0
Pollution sources
0
Self-reported
0
Lawsuits

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Reported illness & cancer claims

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Claims are aggregated from public records and community reports and may be unverified. If you believe your illness is linked to local water, request a consultation.

Self-reported issues

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Pollution sources & reported claims near your water

Factories, greenhouses, and contaminated sites mapped around the water supply. Tap any circle for detail.

Critical High Medium Reported claim

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Public water systems

Helena Water System

PWSID:
MT0000241
Source:
Surface water
Serves:
32,091 people

Town View Estates Wua Inc

PWSID:
MT0002172
Source:
Ground water
Serves:
175 people

Rosemarys Addition

PWSID:
MT0002743
Source:
Ground water
Serves:
30 people

Broadwater Estates Hoa

PWSID:
MT0004697
Source:
Ground water
Serves:
40 people

Skyview Water And Sewer Utility

PWSID:
MT0004039
Source:
Ground water
Serves:
400 people

Pebble Gardens Mobile Home Ct

PWSID:
MT0000603
Source:
Ground water
Serves:
125 people

Golden Estates Homeowners Association

PWSID:
MT0004187
Source:
Ground water
Serves:
400 people

Masonic Home Of Montana

PWSID:
MT0000245
Source:
Ground water
Serves:
90 people

Bridge Creek Estates Subdivision

PWSID:
MT0004555
Source:
Ground water
Serves:
205 people

Grass Land Estates

PWSID:
MT0004448
Source:
Ground water
Serves:
228 people

Mobile City 3

PWSID:
MT0005088
Source:
Surface water
Serves:
40 people

Mobile City Home Park No 2

PWSID:
MT0003043
Source:
Ground water
Serves:
300 people

Mobile City Home Park No 1

PWSID:
MT0000601
Source:
Ground water
Serves:
100 people

Jefferson Hills Wua

PWSID:
MT0002978
Source:
Ground water
Serves:
780 people

North Star Pud

PWSID:
MT0004264
Source:
Ground water
Serves:
715 people

Prairie Mobile Village

PWSID:
MT0000600
Source:
Ground water
Serves:
163 people

Beacon Trailer Court Helena

PWSID:
MT0000596
Source:
Ground water
Serves:
55 people

Homestead Valley Wua Hvha

PWSID:
MT0003251
Source:
Ground water
Serves:
105 people

Ten Mile And Pleasant Valley Wua

PWSID:
MT0002005
Source:
Ground water
Serves:
750 people

Barnett Water Users System

PWSID:
MT0003183
Source:
Ground water
Serves:
70 people

Mchugh Mobile Home Park

PWSID:
MT0002917
Source:
Ground water
Serves:
490 people

Camelot Hoa

PWSID:
MT0000615
Source:
Ground water
Serves:
96 people

Park Evergreen Trailer Court

PWSID:
MT0000421
Source:
Ground water
Serves:
87 people

Western Skies Mobile Ct

PWSID:
MT0000519
Source:
Ground water
Serves:
25 people

Trails End Tr Park Helena

PWSID:
MT0000605
Source:
Ground water
Serves:
35 people

Bryant No 3 Subdivision

PWSID:
MT0004489
Source:
Ground water
Serves:
100 people

Helena North Koa

PWSID:
MT0003679
Source:
Ground water
Serves:
50 people

Treasure State Acres Wua

PWSID:
MT0002390
Source:
Ground water
Serves:
483 people

Helena Rv And Mobile Home Park

PWSID:
MT0000426
Source:
Ground water
Serves:
250 people

Ruger Water District

PWSID:
MT0004143
Source:
Ground water
Serves:
79 people

Helena Leisure Llc

PWSID:
MT0000590
Source:
Ground water
Serves:
1,200 people

South Forestvale Hoa

PWSID:
MT0003881
Source:
Ground water
Serves:
82 people

La Casa Grande Water And Sewer District

PWSID:
MT0001924
Source:
Ground water
Serves:
404 people

Golden Estates Trailer Court

PWSID:
MT0000597
Source:
Ground water
Serves:
225 people

Smith Mchugh #2 Blr

PWSID:
MT0005253
Source:
Ground water
Serves:
68 people

Blue Cloud Subdivision

PWSID:
MT0004288
Source:
Ground water
Serves:
60 people

Applegate Village

PWSID:
MT0004144
Source:
Ground water
Serves:
85 people

Grand Valley Estates Subdivision

PWSID:
MT0004474
Source:
Ground water
Serves:
50 people

Holmberg Village Estates

PWSID:
MT0004190
Source:
Ground water
Serves:
225 people

Glacier Point Ho And Wua

PWSID:
MT0004559
Source:
Ground water
Serves:
210 people

Camel Mountain Hoa

PWSID:
MT0000572
Source:
Ground water
Serves:
96 people

East Helena City Of

PWSID:
MT0000196
Source:
Ground water
Serves:
2,114 people

Moonlight Estates Hoa

PWSID:
MT0004872
Source:
Ground water
Serves:
44 people

Ranchview Estates Wua

PWSID:
MT0003782
Source:
Ground water
Serves:
250 people

North Forestvale Homeowners

PWSID:
MT0001793
Source:
Ground water
Serves:
98 people

EPA & DEP violations

Mobile City 3

PWSID MT00050884 violations

  • Monitoring violation — MOBILE CITY 3

    low severityResolved

    EPA SDWIS violation 4 (code 27) at MOBILE CITY 3 (PWSID MT0005088).

    EPA SDWIS · Monitoring violation · Began Apr 1, 2025 · 1 year ago · Source ↗

  • Monitoring violation — MOBILE CITY 3

    low severityResolved

    EPA SDWIS violation 5 (code 27) at MOBILE CITY 3 (PWSID MT0005088).

    EPA SDWIS · Monitoring violation · Began Apr 1, 2025 · 1 year ago · Source ↗

  • Monitoring violation — MOBILE CITY 3

    low severityResolved

    EPA SDWIS violation 3 (code 3A) at MOBILE CITY 3 (PWSID MT0005088).

    EPA SDWIS · Monitoring violation · Began Dec 1, 2024 · 1 year ago · Source ↗

  • Monitoring violation — MOBILE CITY 3

    low severityResolved

    EPA SDWIS violation 2 (code 66) at MOBILE CITY 3 (PWSID MT0005088).

    EPA SDWIS · Monitoring violation · Began Sep 29, 2022 · 3 years ago · Source ↗

Mobile City Home Park No 2

PWSID MT000304314 violations

  • Monitoring violation — MOBILE CITY HOME PARK NO 2

    low severityResolved

    EPA SDWIS violation 1362986 (code 3A) at MOBILE CITY HOME PARK NO 2 (PWSID MT0003043).

    EPA SDWIS · Monitoring violation · Began Dec 1, 2024 · 1 year ago · Source ↗

  • Monitoring violation — MOBILE CITY HOME PARK NO 2

    low severityResolved

    EPA SDWIS violation 1362985 (code 34) at MOBILE CITY HOME PARK NO 2 (PWSID MT0003043).

    EPA SDWIS · Monitoring violation · Began Dec 30, 2020 · 5 years ago · Source ↗

  • Monitoring violation — MOBILE CITY HOME PARK NO 2

    low severityResolved

    EPA SDWIS violation 1362984 (code 3A) at MOBILE CITY HOME PARK NO 2 (PWSID MT0003043).

    EPA SDWIS · Monitoring violation · Began Oct 1, 2020 · 5 years ago · Source ↗

  • Other violation — MOBILE CITY HOME PARK NO 2

    low severityResolved

    EPA SDWIS violation 1362983 (code 71) at MOBILE CITY HOME PARK NO 2 (PWSID MT0003043).

    EPA SDWIS · Other violation · Began Jul 1, 2020 · 6 years ago · Source ↗

  • Monitoring violation — MOBILE CITY HOME PARK NO 2

    low severityResolved

    EPA SDWIS violation 1361908 (code 52) at MOBILE CITY HOME PARK NO 2 (PWSID MT0003043).

    EPA SDWIS · Monitoring violation · Began Oct 1, 2007 · 18 years ago · Source ↗

  • Other violation — MOBILE CITY HOME PARK NO 2

    low severityResolved

    EPA SDWIS violation 1361607 (code 71) at MOBILE CITY HOME PARK NO 2 (PWSID MT0003043).

    EPA SDWIS · Other violation · Began Jul 1, 2006 · 20 years ago · Source ↗

  • Monitoring violation — MOBILE CITY HOME PARK NO 2

    low severityResolved

    EPA SDWIS violation 1333905 (code 52) at MOBILE CITY HOME PARK NO 2 (PWSID MT0003043).

    EPA SDWIS · Monitoring violation · Began Oct 1, 2004 · 21 years ago · Source ↗

  • Monitoring violation — MOBILE CITY HOME PARK NO 2

    low severityResolved

    EPA SDWIS violation 1333004 (code 52) at MOBILE CITY HOME PARK NO 2 (PWSID MT0003043).

    EPA SDWIS · Monitoring violation · Began Oct 1, 2003 · 22 years ago · Source ↗

  • Monitoring violation — MOBILE CITY HOME PARK NO 2

    low severityResolved

    EPA SDWIS violation 1333103 (code 52) at MOBILE CITY HOME PARK NO 2 (PWSID MT0003043).

    EPA SDWIS · Monitoring violation · Began Oct 1, 2001 · 24 years ago · Source ↗

  • Monitoring violation — MOBILE CITY HOME PARK NO 2

    low severityResolved

    EPA SDWIS violation 1333203 (code 52) at MOBILE CITY HOME PARK NO 2 (PWSID MT0003043).

    EPA SDWIS · Monitoring violation · Began Oct 1, 2000 · 25 years ago · Source ↗

  • Monitoring violation — MOBILE CITY HOME PARK NO 2

    low severityResolved

    EPA SDWIS violation 68501 (code 52) at MOBILE CITY HOME PARK NO 2 (PWSID MT0003043).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2000 · 26 years ago · Source ↗

  • Monitoring violation — MOBILE CITY HOME PARK NO 2

    low severityResolved

    EPA SDWIS violation 1333303 (code 52) at MOBILE CITY HOME PARK NO 2 (PWSID MT0003043).

    EPA SDWIS · Monitoring violation · Began Oct 1, 1999 · 26 years ago · Source ↗

  • Monitoring violation — MOBILE CITY HOME PARK NO 2

    low severityResolved

    EPA SDWIS violation 64198 (code 52) at MOBILE CITY HOME PARK NO 2 (PWSID MT0003043).

    EPA SDWIS · Monitoring violation · Began Jan 1, 1997 · 29 years ago · Source ↗

  • Monitoring violation — MOBILE CITY HOME PARK NO 2

    low severityResolved

    EPA SDWIS violation 179501 (code 52) at MOBILE CITY HOME PARK NO 2 (PWSID MT0003043).

    EPA SDWIS · Monitoring violation · Began Jan 1, 1996 · 30 years ago · Source ↗

Mobile City Home Park No 1

PWSID MT000060113 violations

  • Monitoring violation — MOBILE CITY HOME PARK NO 1

    low severityResolved

    EPA SDWIS violation 5255414 (code 3A) at MOBILE CITY HOME PARK NO 1 (PWSID MT0000601).

    EPA SDWIS · Monitoring violation · Began Dec 1, 2024 · 1 year ago · Source ↗

  • Monitoring violation — MOBILE CITY HOME PARK NO 1

    low severityResolved

    EPA SDWIS violation 5255413 (code 3A) at MOBILE CITY HOME PARK NO 1 (PWSID MT0000601).

    EPA SDWIS · Monitoring violation · Began Oct 1, 2020 · 5 years ago · Source ↗

  • Other violation — MOBILE CITY HOME PARK NO 1

    low severityResolved

    EPA SDWIS violation 5255412 (code 71) at MOBILE CITY HOME PARK NO 1 (PWSID MT0000601).

    EPA SDWIS · Other violation · Began Jul 1, 2020 · 6 years ago · Source ↗

  • Monitoring violation — MOBILE CITY HOME PARK NO 1

    low severityResolved

    EPA SDWIS violation 5255408 (code 52) at MOBILE CITY HOME PARK NO 1 (PWSID MT0000601).

    EPA SDWIS · Monitoring violation · Began Oct 1, 2007 · 18 years ago · Source ↗

  • Other violation — MOBILE CITY HOME PARK NO 1

    low severityResolved

    EPA SDWIS violation 5255307 (code 71) at MOBILE CITY HOME PARK NO 1 (PWSID MT0000601).

    EPA SDWIS · Other violation · Began Jul 1, 2006 · 20 years ago · Source ↗

  • Monitoring violation — MOBILE CITY HOME PARK NO 1

    low severityResolved

    EPA SDWIS violation 5255005 (code 52) at MOBILE CITY HOME PARK NO 1 (PWSID MT0000601).

    EPA SDWIS · Monitoring violation · Began Oct 1, 2004 · 21 years ago · Source ↗

  • Monitoring violation — MOBILE CITY HOME PARK NO 1

    low severityResolved

    EPA SDWIS violation 5254104 (code 52) at MOBILE CITY HOME PARK NO 1 (PWSID MT0000601).

    EPA SDWIS · Monitoring violation · Began Oct 1, 2003 · 22 years ago · Source ↗

  • Monitoring violation — MOBILE CITY HOME PARK NO 1

    low severityResolved

    EPA SDWIS violation 5254203 (code 52) at MOBILE CITY HOME PARK NO 1 (PWSID MT0000601).

    EPA SDWIS · Monitoring violation · Began Oct 1, 2001 · 24 years ago · Source ↗

  • Monitoring violation — MOBILE CITY HOME PARK NO 1

    low severityResolved

    EPA SDWIS violation 5254303 (code 52) at MOBILE CITY HOME PARK NO 1 (PWSID MT0000601).

    EPA SDWIS · Monitoring violation · Began Oct 1, 2000 · 25 years ago · Source ↗

  • Monitoring violation — MOBILE CITY HOME PARK NO 1

    low severityResolved

    EPA SDWIS violation 5254403 (code 52) at MOBILE CITY HOME PARK NO 1 (PWSID MT0000601).

    EPA SDWIS · Monitoring violation · Began Oct 1, 1999 · 26 years ago · Source ↗

  • Monitoring violation — MOBILE CITY HOME PARK NO 1

    low severityResolved

    EPA SDWIS violation 68300 (code 52) at MOBILE CITY HOME PARK NO 1 (PWSID MT0000601).

    EPA SDWIS · Monitoring violation · Began Jan 1, 1999 · 27 years ago · Source ↗

  • Monitoring violation — MOBILE CITY HOME PARK NO 1

    low severityResolved

    EPA SDWIS violation 179397 (code 52) at MOBILE CITY HOME PARK NO 1 (PWSID MT0000601).

    EPA SDWIS · Monitoring violation · Began Jan 1, 1998 · 28 years ago · Source ↗

  • Monitoring violation — MOBILE CITY HOME PARK NO 1

    low severityResolved

    EPA SDWIS violation 63998 (code 52) at MOBILE CITY HOME PARK NO 1 (PWSID MT0000601).

    EPA SDWIS · Monitoring violation · Began Jan 1, 1997 · 29 years ago · Source ↗

City-wide

20 violations

  • Revised Total Coliform Rule — MON violation

    medium severityResolved

    Revised Total Coliform Rule MON violation (Resolved).

    EPA SDWIS · MON · Began Mar 1, 2026 · 5 months ago · Source ↗

  • Lead and Copper Rule — MR violation

    medium severityUnaddressed

    Lead and Copper Rule MR violation (Unaddressed).

    EPA SDWIS · MR · Began Jan 1, 2026 · 7 months ago · Source ↗

  • Revised Total Coliform Rule — TT violation

    high severityHealth-basedResolved

    Revised Total Coliform Rule TT violation (Resolved).

    EPA SDWIS · TT · Began Oct 23, 2025 · 9 months ago · Source ↗

  • Lead and Copper Rule — MR violation

    medium severityResolved

    Lead and Copper Rule MR violation (Resolved).

    EPA SDWIS · MR · Began Oct 1, 2025 · 10 months ago · Source ↗

  • Consumer Confidence Rule — Other violation

    medium severityUnaddressed

    Consumer Confidence Rule Other violation (Unaddressed).

    EPA SDWIS · Other · Began Oct 1, 2025 · 10 months ago · Source ↗

  • E. COLI — MR violation

    medium severityResolved

    E. COLI MR violation (Resolved).

    EPA SDWIS · MR · Began Sep 2, 2025 · 11 months ago · Source ↗

  • E. COLI — MR violation

    medium severityResolved

    E. COLI MR violation (Resolved).

    EPA SDWIS · MR · Began Aug 14, 2025 · 11 months ago · Source ↗

  • Consumer Confidence Rule — Other violation

    medium severityResolved

    Consumer Confidence Rule Other violation (Resolved).

    EPA SDWIS · Other · Began Jul 1, 2025 · 1 year ago · Source ↗

  • Revised Total Coliform Rule — MON violation

    medium severityResolved

    Revised Total Coliform Rule MON violation (Resolved).

    EPA SDWIS · MON · Began Jun 1, 2025 · 1 year ago · Source ↗

  • TTHM — MR violation

    medium severityResolved

    TTHM MR violation (Resolved).

    EPA SDWIS · MR · Began Apr 1, 2025 · 1 year ago · Source ↗

  • Total Haloacetic Acids (HAA5) — MR violation

    medium severityResolved

    Total Haloacetic Acids (HAA5) MR violation (Resolved).

    EPA SDWIS · MR · Began Apr 1, 2025 · 1 year ago · Source ↗

  • Lead and Copper Rule — MR violation

    medium severityUnaddressed

    Lead and Copper Rule MR violation (Unaddressed).

    EPA SDWIS · MR · Began Dec 30, 2024 · 1 year ago · Source ↗

  • Lead and Copper Rule — MR violation

    medium severityResolved

    Lead and Copper Rule MR violation (Resolved).

    EPA SDWIS · MR · Began Dec 30, 2024 · 1 year ago · Source ↗

  • Lead and Copper Rule — MR violation

    medium severityResolved

    Lead and Copper Rule MR violation (Resolved).

    EPA SDWIS · MR · Began Dec 30, 2024 · 1 year ago · Source ↗

  • Lead and Copper Rule — MR violation

    medium severityResolved

    Lead and Copper Rule MR violation (Resolved).

    EPA SDWIS · MR · Began Dec 30, 2024 · 1 year ago · Source ↗

  • Lead and Copper Rule — MR violation

    medium severityResolved

    Lead and Copper Rule MR violation (Resolved).

    EPA SDWIS · MR · Began Dec 30, 2024 · 1 year ago · Source ↗

  • Lead and Copper Rule — MR violation

    medium severityResolved

    Lead and Copper Rule MR violation (Resolved).

    EPA SDWIS · MR · Began Dec 30, 2024 · 1 year ago · Source ↗

  • Revised Total Coliform Rule — MON violation

    medium severityResolved

    Revised Total Coliform Rule MON violation (Resolved).

    EPA SDWIS · MON · Began Dec 1, 2024 · 1 year ago · Source ↗

  • Revised Total Coliform Rule — MON violation

    medium severityResolved

    Revised Total Coliform Rule MON violation (Resolved).

    EPA SDWIS · MON · Began Dec 1, 2024 · 1 year ago · Source ↗

  • Revised Total Coliform Rule — MON violation

    medium severityResolved

    Revised Total Coliform Rule MON violation (Resolved).

    EPA SDWIS · MON · Began Dec 1, 2024 · 1 year ago · Source ↗

Water-related lawsuits

No lawsuits on record.

In the news & sources

No coverage linked yet.