Ncmrwa Pondera Co Service Area

What EPA’s and Montana’s records show in this utility’s water: nitrate, arsenic and other regulated chemicals, plus violations since 2016, with the certification that handles each result.

Serves: 144 people
Connections: 6
Water source: Surface water bought from another system
Based in: Conrad, MT
County: Pondera
Owner: Local government

The ZIP code it serves

59601

The short answer

Nothing in EPA’s and Montana’s records for this utility is above a health goal. That covers nitrate, arsenic and other regulated chemicals, not everything. No health-based violations on file since 2016.

What was found

Haloacetic acids (HAA5) and total trihalomethanes (TTHM): Montana’s own results, samples taken from Aug. 10, 2020 to Aug. 10, 2026, with EPA’s 2012 to 2019 file for earlier years.

Below EPA’s limits2

Haloacetic acids (HAA5)

Forms or is added in treatment

Below EPA’s limits

49ppb

Highest yearly average, 2020 to 2026

2026, one sample: 20 ppb

Averaged by year, the highest was 49 ppb, in 2020, below EPA’s legal limit of 60 ppb. In 2026, the latest year on file, its one sample was 20 ppb. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 50 ppb, in 2018.

What handles it

No certification claim covers this compound yet.

Total trihalomethanes (TTHM)

Forms or is added in treatment

Below EPA’s limits

49ppb

Highest yearly average, 2020 to 2026

2026, one sample: 29 ppb

Averaged by year, the highest was 49 ppb, in 2021, below EPA’s legal limit of 80 ppb. In 2026, the latest year on file, its one sample was 29 ppb. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 59 ppb, in 2018.

What handles it

NSF/ANSI 53 look for “Trihalomethanes (TTHM) Reduction”
NSF/ANSI 58 look for “Trihalomethanes (TTHM) Reduction”

Violations since 2016

No health-based violations on file with EPA since 2016. There are 2 monitoring or reporting violations: a sample missed, late or not reported.

What this report can’t tell you

Everything else. Haloacetic acids (HAA5) and total trihalomethanes (TTHM) results here are Montana’s own from 2020 on, with EPA’s national file for 2012 to 2019. Ncmrwa Pondera Co Service Area’s own annual report, which it must send you every year, has the contaminants this page does not show.
Your own plumbing. Lead results are the 90th percentile across homes the utility samples. Your home’s service line, solder and fixtures decide yours. A certified lab test is the only way to know.
What it means for your health. This page reports what the records show and EPA’s limits and goals; it is not medical advice. If you are worried about a health effect, talk to a doctor or your local health department.
Anything after the latest data. SDWIS data is from 2026 Q3; UCMR 5 didn’t sample this utility; Montana’s results run from Aug. 10, 2020 to Aug. 10, 2026.

Testing your own tap

Ncmrwa Pondera Co Service Area’s results are for the water it sends out. What your own service line, solder and fixtures add shows up only in a test of your tap, by a lab Montana certifies.

The 3 labs Montana certifies closest to the area Ncmrwa Pondera Co Service Area serves, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.

DPHHS State of Montana Environmental Laboratory
Helena, MT · under a mile
Certified for bacteria, minerals and other inorganics, organic chemicals
(406) 444-3444
Alpine Analytical
Helena, MT · under a mile
Certified for bacteria, minerals and other inorganics
(406) 449-6282
Energy Laboratories, Inc.
Helena, MT · about 10 miles
Certified for bacteria, minerals and other inorganics, organic chemicals
(406) 442-0711

Montana State Environmental Laboratory: Private well testing packages for bacteria, metals, nutrients, anions, organic chemicals and more, open to the public. Samples can be mailed, sent by the lab's free courier, or dropped off at the lab. Environmental Laboratory, Montana Department of Public Health and Human Services.

All 36 certified labs for Montana