Montgomery Co RWD 12

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

Serves: 756 people
Connections: 252
Water source: Surface water bought from another system
Based in: Neodesha, KS
County: Montgomery
Owner: Local government

The 2 ZIP codes it serves

66757, 67335

The short answer

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

What was found

Haloacetic acids (HAA5) and total trihalomethanes (TTHM): Kansas’s own results, samples taken from Jan. 6, 2020 to July 6, 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

31.3ppb

Highest yearly average, 2020 to 2026

2026 average: 26 ppb

Averaged by year, the highest was 31.3 ppb, in 2020, below EPA’s legal limit of 60 ppb. Its highest single sample was 42 ppb. In 2026, the latest year on file, its three samples averaged 26 ppb. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 34 ppb, in 2013.

What handles it

No certification claim covers this compound yet.

Total trihalomethanes (TTHM)

Forms or is added in treatment

Below EPA’s limits

41ppb

Highest yearly average, 2020 to 2026

2026 average: 34 ppb

Averaged by year, the highest was 41 ppb, in 2022, below EPA’s legal limit of 80 ppb. Its highest single sample was 54 ppb. In 2026, the latest year on file, its three samples averaged 34 ppb. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 39 ppb, in 2013.

What handles it

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

One compound tested and not foundBelow the reporting level in every sample. Not found is not the same as zero.

Lead

Violations since 2016

No health-based violations on file with EPA since 2016.

What this report can’t tell you

Everything else. Haloacetic acids (HAA5) and total trihalomethanes (TTHM) results here are Kansas’s own from 2020 on, with EPA’s national file for 2012 to 2019. Montgomery Co RWD 12’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; Kansas’s results run from Jan. 6, 2020 to July 6, 2026.

Testing your own tap

Montgomery Co RWD 12’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 Kansas certifies.

The lab Kansas certifies closest to the area Montgomery Co RWD 12 serves, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.