BEAVERHEAD JACKSON WATER AND SEWER DIST

JACKSON, MT · 58 people served · EPA PWSID MT0002590

The bottom line

BEAVERHEAD JACKSON WATER AND SEWER DIST (JACKSON, MT), which serves about 58 people, has recorded 2 health-based drinking-water contaminants in EPA violation records since 2016, most notably Arsenic, Radium (226/228). Its most recent lead 90th-percentile sample was 7.0 ppb, within the 15 ppb federal action level. A certified water filter can reduce these at the tap — see the certified options for each below.

health contaminants on record

PFAS detected (UCMR5)

total violations on record since 2016 (incl. monitoring & reporting)

What the testing found

Measured levels from EPA violation records, compared to the federal limit (MCL). The black line marks the legal limit.

Arsenic

5.3× the federal limit

Measured 0.053 mg/L · federal limit 0.01 mg/L · latest 01/01/2019 · 13 violations since 2016

Known human carcinogen (skin, bladder, lung); also cardiovascular and developmental effects. Mostly naturally occurring in groundwater.

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Radium

Over limit

Measured 8.5 pCi/L · federal limit 5 pCi/L · latest 10/01/2018 · 14 violations since 2016

Radioactive; combined radium MCL 5 pCi/L. Bone cancer risk with long-term exposure. Naturally occurring in groundwater.

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Lead

Within federal limit

Measured 7 ppb · federal limit 15 ppb · latest 12/31/2024 · 0 violations since 2016

No safe level. Damages developing brain/nervous system in children; linked to lower IQ, kidney and cardiovascular harm in adults. Usually enters water from corroding pipes/solder, not the source.

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Your recommended fix

Filters certified to clean up your water

Your water shows Arsenic, Radium, Lead. A reverse osmosis system handles the most of this in one unit — these three are independently certified for the most of your contaminants (not marketing claims):

Best match for your water

Pentair

GRO-575B

Covers 3 of your 3 filterable contaminants

REVERSE OSMOSIS NSF certified

$809

13.8¢/gal

Buy →

Pentair

RO-2550

Covers 3 of your 3 filterable contaminants

REVERSE OSMOSIS NSF certified

$17.22

Buy →

Multipure

Aquaperform

Covers 2 of your 3 filterable contaminants

UNDER-SINK NSF certified

$765

Buy →

Compare all certified reverse osmosis filters →

Want certainty about your tap specifically (not just the system)? A certified mail-in lab test is the gold standard — system-wide records can differ from your home's plumbing. Some links above are affiliate links — see our disclosure.

Sources & method. Contaminant levels and violations come from EPA's Safe Drinking Water Information System (health-based violations, 2016–present); PFAS from EPA UCMR5 monitoring (2023–2025). Levels shown are the highest recorded value in the violation records; a violation means the contaminant exceeded its federal limit at the system level. Your home's water can differ from the system average. Public domain data; we are not affiliated with the EPA.