Cherokee Co RWD 1
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
- 520 people
- Connections
- 243
- Water source
- Groundwater
- Based in
- Crestline, KS
- County
- Cherokee
- Owner
- Local government
- Hardness
- Very hard
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
Fluoride, total trihalomethanes (TTHM), arsenic, chromium (total), haloacetic acids (HAA5) and nitrate: Kansas’s own results, samples taken from Feb. 18, 2020 to Feb. 17, 2026, with EPA’s 2012 to 2019 file for earlier years.
Below EPA’s limits2
Fluoride
Forms or is added in treatment
0.69ppm
Highest yearly average, 2022 to 2025
Averaged by year, the highest was 0.69 ppm, in 2025, below EPA’s legal limit of 4.0 ppm. Its highest single sample was 0.69 ppm. That was also the latest year on file. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 0.56 ppm, in 2013.
What handles it
- NSF/ANSI 58 look for “Fluoride Reduction”
- NSF/ANSI 53 look for “Fluoride”
Total trihalomethanes (TTHM)
Forms or is added in treatment
6.2ppb
Highest yearly average, 2020 to 2025
2025: not found
Averaged by year, the highest was 6.2 ppb, in 2021, below EPA’s legal limit of 80 ppb. In 2025, the latest year on file, it wasn’t found in its one sample. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 7.5 ppb, in 2019.
What handles it
- NSF/ANSI 53 look for “Trihalomethanes (TTHM) Reduction”
- NSF/ANSI 58 look for “Trihalomethanes (TTHM) Reduction”
5 compounds tested and not foundBelow the reporting level in every sample. Not found is not the same as zero.
- Arsenic
- Chromium (total)
- Haloacetic acids (HAA5)
- Lead
- Nitrate
Hardness
Very hard, typically 240 mg/L (14 grains per gallon), across 2 sampling points, 2016 to 2025.
Hardness is calcium and magnesium. EPA sets no limit for it: it shows up as scale on fixtures and in water heaters, and as soap that won’t lather. USGS calls water above 60 mg/L moderately hard, above 120 hard and above 180 very hard.
Violations since 2016
No health-based violations on file with EPA since 2016. There is 1 monitoring or reporting violation: a sample missed, late or not reported.
What this report can’t tell you
Everything else. Fluoride, total trihalomethanes (TTHM), arsenic, chromium (total), haloacetic acids (HAA5) and nitrate results here are Kansas’s own from 2020 on, with EPA’s national file for 2012 to 2019. Cherokee Co RWD 1’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 Feb. 18, 2020 to Feb. 17, 2026.
Testing your own tap
The lab Kansas certifies closest to the area Cherokee Co RWD 1 serves, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Pace Analytical Services, Inc - Frontenac
Frontenac, KS · about 23 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
- Hardness: Kansas Department of Health and Environment, Public Water Supply Section, results from Feb. 8, 2016 to Feb. 4, 2025, read Oct. 18, 2026
- Limits and goals: each contaminant’s page, with its EPA source.
- How this page is built: methodology.
PWSID KS2002111. Rebuilt from EPA data on Oct. 18, 2026.
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 reportCherokee Co RWD 1 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