Atchison Co RWD 3
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
- 110 people
- Connections
- 49
- Water source
- Surface water bought from another system
- Based in
- Atchison, KS
- County
- Atchison
- Owner
- Local government
The ZIP code it serves
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
Total trihalomethanes (TTHM) and haloacetic acids (HAA5): Kansas’s own results, samples taken from Aug. 25, 2020 to Nov. 30, 2025, with EPA’s 2012 to 2019 file for earlier years.
Below EPA’s limits2
Total trihalomethanes (TTHM)
Forms or is added in treatment
62ppb
Highest yearly average, 2020 to 2025
2025 average: 33.3 ppb
Averaged by year, the highest was 62 ppb, in 2020, below EPA’s legal limit of 80 ppb. Its highest single sample was 97 ppb. In 2025, the latest year on file, its four samples averaged 33.3 ppb. EPA recorded no violation for total trihalomethanes (TTHM) at this utility since 2020. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 160 ppb, in 2015.
What handles it
- NSF/ANSI 53 look for “Trihalomethanes (TTHM) Reduction”
- NSF/ANSI 58 look for “Trihalomethanes (TTHM) Reduction”
Haloacetic acids (HAA5)
Forms or is added in treatment
29ppb
Highest yearly average, 2020 to 2025
2025 average: 18.3 ppb
Averaged by year, the highest was 29 ppb, in 2024, below EPA’s legal limit of 60 ppb. Its highest single sample was 61 ppb. In 2025, the latest year on file, its four samples averaged 18.3 ppb. EPA recorded no violation for haloacetic acids (HAA5) at this utility since 2020. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 37 ppb, in 2015.
What handles it
No certification claim covers this compound yet.
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. There are 23 monitoring or reporting violations: a sample missed, late or not reported.
What this report can’t tell you
Everything else. Total trihalomethanes (TTHM) and haloacetic acids (HAA5) results here are Kansas’s own from 2020 on, with EPA’s national file for 2012 to 2019. Atchison Co RWD 3’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 Aug. 25, 2020 to Nov. 30, 2025.
Testing your own tap
The 3 labs Kansas certifies closest to the area Atchison Co RWD 3 serves, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Water District No 1 of Johnson County-WaterOne
Kansas City, KS · about 40 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics
KC Water Services Laboratory
Kansas City, MO · about 40 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals
Eurofins Kansas City
Lenexa, KS · about 45 miles
Certified for bacteria
Sources
- EPA UCMR 5 occurrence data, file of Oct. 15, 2026
- EPA SDWA bulk download (SDWIS federal data), 2026 Q3
- Kansas Department of Health and Environment, Public Water Supply Section, results from Jan. 2, 2020 to Sept. 16, 2026, read Oct. 18, 2026
- EPA Six-Year Review 4 compliance monitoring data, 2012 to 2019, file of Feb. 5, 2024
- Certified labs: Kansas Department of Health and Environment, drinking water labs, as listed in TNI LAMS, read Oct. 13, 2026; distances from the Census 2020 ZIP code tabulation area gazetteer
- Limits and goals: each contaminant’s page, with its EPA source.
- How this page is built: methodology.
PWSID KS2000504. Rebuilt from EPA data on Oct. 18, 2026.
Towns it serves
Also in Atchison County
- City of Atchison10,694
- Atchison Co RWD 5c3,690
- City of Effingham500
- Atchison Co RWD 1490
- City of Lancaster248
- City of Muscotah158
What to do next
- Nothing here is above a health goalIn EPA’s and Kansas’s records for this utility. They don’t cover everything, which is why the next step matters.Every contaminant TapBuff tracks
- Get the utility’s own reportAtchison Co RWD 3 must send you a water quality report every year. It covers contaminants this page does not show.How to read it
- Test your own tap for leadYour service line, solder and fixtures decide the lead at your faucet, not the utility’s average.Lead in your water: what to do
- Decide if you want a filter at allA filter for taste or chlorine is a preference, not a need. The standards say what each kind can do.NSF/ANSI standards, decoded