City water profile

Water hardness in Columbia Falls

Find official utility reports, understand hardness, and check the water system serving your home in Columbia Falls, Montana.

Utility-reported hardness

Not yet available

Check your provider and source →

State comparison: Unavailable
Evidence comparison rank: —
Matched utilities: 10
Active health records: 0

Your tap water

What does the utility report?

Match the utility name to your water bill. These results describe the utility’s water, not a test at your home. A ZIP can include several water systems.

Utility hardness unavailable in this index

Nearby river or groundwater samples cannot tell us the hardness coming out of your tap. Ask your water provider for total hardness as CaCO₃, or test it at home.

Find an official utility report →

Convert a hardness result →Test your tap →

Match the name on your water bill

Your utility’s measurements and compliance records

These are possible serving systems. A record for one system does not apply to every home in this ZIP. Confirm your provider before interpreting a measurement or notice. Federal records can lag current utility notices.

EPA snapshot: 2026Q2. Historical window begins Jan 1, 2021.

Columbia Falls City Of

MT0000181 · Groundwater · 4,450 people served system-wide

The system names this served city; Census place overlap links the city to this ZCTA.

No active health-based record in this imported snapshot

Find this utility’s official report →

Measurements (1)

An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level

Reported level: 0.004 mg/L
Action level: 0.015 mg/L

27% of the listed benchmark

Monitoring period: Jan 1, 2022 to Dec 31, 2024

Violation history (23)

Imported violation history for Columbia Falls City Of
Rule	Status	Period
BHC-GAMMA	Resolved	Jul 1, 2022 to Sep 30, 2022
Methoxychlor	Resolved	Jul 1, 2022 to Sep 30, 2022
Toxaphene	Resolved	Jul 1, 2022 to Sep 30, 2022
Di(2-ethylhexyl) adipate	Resolved	Jul 1, 2022 to Sep 30, 2022
OXAMYL	Resolved	Jul 1, 2022 to Sep 30, 2022
Simazine	Resolved	Jul 1, 2022 to Sep 30, 2022
Di(2-ethylhexyl) phthalate	Resolved	Jul 1, 2022 to Sep 30, 2022
Dinoseb	Resolved	Jul 1, 2022 to Sep 30, 2022
Atrazine	Resolved	Jul 1, 2022 to Sep 30, 2022
Heptachlor	Resolved	Jul 1, 2022 to Sep 30, 2022
Heptachlor epoxide	Resolved	Jul 1, 2022 to Sep 30, 2022
HEXACHLOROBENZENE	Resolved	Jul 1, 2022 to Sep 30, 2022
Carbofuran	Resolved	Jul 1, 2022 to Sep 30, 2022
LASSO	Resolved	Jul 1, 2022 to Sep 30, 2022
Chlordane	Resolved	Jul 1, 2022 to Sep 30, 2022
2,4-D	Resolved	Jul 1, 2022 to Sep 30, 2022
Picloram	Resolved	Jul 1, 2022 to Sep 30, 2022
2,4,5-TP	Resolved	Jul 1, 2022 to Sep 30, 2022
Dalapon	Resolved	Jul 1, 2022 to Sep 30, 2022
Benzo(a)pyrene	Resolved	Jul 1, 2022 to Sep 30, 2022
Pentachlorophenol	Resolved	Jul 1, 2022 to Sep 30, 2022
Hexachlorocyclopentadiene	Resolved	Jul 1, 2022 to Sep 30, 2022
Endrin	Resolved	Jul 1, 2022 to Sep 30, 2022

Meadow Lake Co Water And Sewer District

MT0000914 · Groundwater · 950 people served system-wide

The system names this served city; Census place overlap links the city to this ZCTA.

No active health-based record in this imported snapshot

Find this utility’s official report →

Measurements (1)

An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level

Reported level: 0.002 mg/L
Action level: 0.015 mg/L

13% of the listed benchmark

Monitoring period: Jan 1, 2017 to Dec 31, 2019

Violation history (1)

Imported violation history for Meadow Lake Co Water And Sewer District
Rule	Status	Period
Lead and Copper Rule	Unaddressed	Oct 1, 2025

Kokanee Bend Hoa

MT0002997 · Groundwater · 230 people served system-wide

The system names this served city; Census place overlap links the city to this ZCTA.

No active health-based record in this imported snapshot

Find this utility’s official report →

Measurements (1)

An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level

Reported level: 0.003 mg/L
Action level: 0.015 mg/L

20% of the listed benchmark

Monitoring period: Jan 1, 2011 to Dec 31, 2019

Violation history (6)

Imported violation history for Kokanee Bend Hoa
Rule	Status	Period
E. COLI	Resolved	Dec 4, 2025 to Dec 11, 2025
E. COLI	Resolved	Oct 8, 2025 to Oct 8, 2025
Consumer Confidence Rule	Resolved	Jul 1, 2025 to Jul 17, 2025
Consumer Confidence Rule	Resolved	Jul 1, 2023 to Jul 7, 2023
E. COLI	Resolved	Oct 8, 2022 to Oct 12, 2022
Consumer Confidence Rule	Resolved	Jul 1, 2022 to Jul 5, 2022

Flathead County Water Dist 101

MT0000184 · Groundwater · 210 people served system-wide

The system names this served city; Census place overlap links the city to this ZCTA.

No active health-based record in this imported snapshot

Find this utility’s official report →

Measurements (1)

An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level

Reported level: 0.001 mg/L
Action level: 0.015 mg/L

7% of the listed benchmark

Monitoring period: Jan 1, 2022 to Dec 31, 2024

Violation history (2)

Imported violation history for Flathead County Water Dist 101
Rule	Status	Period
Lead and Copper Rule	Resolved	Dec 30, 2024 to Feb 4, 2025
Consumer Confidence Rule	Unaddressed	Oct 1, 2023

Country Estates Mble Home Park

MT0001892 · Groundwater · 125 people served system-wide

The system names this served city; Census place overlap links the city to this ZCTA.

No active health-based record in this imported snapshot

Find this utility’s official report →

Measurements (1)

An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level

Reported level: 0 mg/L
Action level: 0.015 mg/L

0% of the listed benchmark

Monitoring period: Jan 1, 2022 to Dec 31, 2024

Violation history (0)

No record returned in this imported window. This is not a guarantee of tap-water safety.

Riverside Mobile Home Park

MT0000108 · Groundwater · 100 people served system-wide

The system names this served city; Census place overlap links the city to this ZCTA.

No active health-based record in this imported snapshot

Find this utility’s official report →

Measurements (1)

An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level

Reported level: 0 mg/L
Action level: 0.015 mg/L

0% of the listed benchmark

Monitoring period: Jan 1, 2023 to Dec 31, 2025

Violation history (6)

Imported violation history for Riverside Mobile Home Park
Rule	Status	Period
Consumer Confidence Rule	Resolved	Jul 1, 2021 to Jul 27, 2021
Consumer Confidence Rule	Addressed	Oct 1, 2014
Consumer Confidence Rule	Addressed	Jul 1, 2014
Consumer Confidence Rule	Addressed	Oct 1, 2013
Consumer Confidence Rule	Addressed	Jul 1, 2013
Lead and Copper Rule	Addressed	Jan 1, 2011

Hideaway Tr Pk Columbia Falls

MT0001737 · Groundwater · 75 people served system-wide

The system names this served city; Census place overlap links the city to this ZCTA.

No active health-based record in this imported snapshot

Find this utility’s official report →

Measurements (1)

An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level

Reported level: 0.003 mg/L
Action level: 0.015 mg/L

20% of the listed benchmark

Monitoring period: Jan 1, 2022 to Dec 31, 2024

Violation history (0)

No record returned in this imported window. This is not a guarantee of tap-water safety.

Halfmoon Mobile Home Park Inc

MT0003531 · Groundwater · 60 people served system-wide

The system names this served city; Census place overlap links the city to this ZCTA.

No active health-based record in this imported snapshot

Find this utility’s official report →

Measurements (1)

An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level

Reported level: 0.001 mg/L
Action level: 0.015 mg/L

7% of the listed benchmark

Monitoring period: Jan 1, 2011 to Dec 31, 2019

Violation history (1)

Imported violation history for Halfmoon Mobile Home Park Inc
Rule	Status	Period
Revised Total Coliform Rule	Resolved	Jun 1, 2025 to Jun 30, 2025

Prairie Falcon Acres

MT0004483 · Groundwater · 41 people served system-wide

The system names this served city; Census place overlap links the city to this ZCTA.

No active health-based record in this imported snapshot

Find this utility’s official report →

Measurements (1)

An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level

Reported level: 0 mg/L
Action level: 0.015 mg/L

0% of the listed benchmark

Monitoring period: Jan 1, 2023 to Dec 31, 2025

Violation history (1)

Imported violation history for Prairie Falcon Acres
Rule	Status	Period
Consumer Confidence Rule	Resolved	Jul 1, 2023 to Oct 9, 2023

East Wood Village Trailer Park

MT0002814 · Groundwater · 36 people served system-wide

The system names this served city; Census place overlap links the city to this ZCTA.

No active health-based record in this imported snapshot

Find this utility’s official report →

Measurements (1)

An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level

Reported level: 0 mg/L
Action level: 0.015 mg/L

0% of the listed benchmark

Monitoring period: Jan 1, 2015 to Dec 31, 2017

Violation history (0)

No record returned in this imported window. This is not a guarantee of tap-water safety.

City summary

What the indexed records say

Columbia Falls has 1 published ZIP profile across Flathead County. No qualifying nearby hardness observation is available for the city.

Because only one ZIP is represented, the city median and range are the same local estimate. It should not be read as multiple independent samples across the community.

Hardness distribution

How local ZIP estimates compare

Soft0 ZIPs

Moderately hard0 ZIPs

Hard0 ZIPs

Very hard0 ZIPs

0 of 1 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance: — miles
Profiles with evidence: 0/1

Confidence labels

High: 0Moderate: 0Low: 0

Observation window: unavailable to unavailable.

ZIP directory

Water reports in Columbia Falls

Open a ZIP for site-level provenance and measurements.

ZIP code

59912

No estimate

—

Nearest site: — mi
Confidence: —

View full ZIP evidence →

Practical next steps

Move from index to evidence

1. Open your ZIP. Check distance, dates, confidence, and the associated utility.
2. Read the current CCR. Confirm source water, detections, limits, ranges, and notices.
3. Use a measured hardness result. Confirm health concerns or treatment sizing with the right method.

Continue comparing

Other Montana communities

Lakeside

Flathead County

193 PPM median

Whitefish

Flathead County

74 PPM median

Coram

Flathead County

— No median

Hungry Horse

Flathead County

— No median

Kalispell

Flathead County

— No median

Marion

Flathead County

— No median

Search all 133 Montana cities →

Questions people ask

About water in Columbia Falls

Is the water hard?

Check the utility-reported result above when available. Nearby environmental samples cannot establish tap-water hardness. Ask your provider or test your tap.

Is the tap water safe?

Compliance history is utility-wide and cannot guarantee conditions at every tap. Check current notices and test when address-specific evidence is needed.

Do I need treatment?

Choose treatment only after confirming the problem at the property. A softener targets hardness; contaminant treatment requires a matching, verified performance claim.