Labette Co RWD 1c

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: 285 people
Connections: 136
Water source: Surface water bought from another system
Based in: Oswego, KS
County: Labette
Owner: Local government

The ZIP code it serves

66713

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. 11 health-based violations since 2016.

What was found

Total trihalomethanes (TTHM) and haloacetic acids (HAA5): Kansas’s own results, samples taken from Feb. 24, 2020 to Aug. 4, 2026, with EPA’s 2012 to 2019 file for earlier years.

Below EPA’s limits2

Total trihalomethanes (TTHM)

Forms or is added in treatment

Below EPA’s limits

71ppb

Highest yearly average, 2020 to 2026

Averaged by year, the highest was 71 ppb, in 2026, below EPA’s legal limit of 80 ppb. Its highest single sample was 91 ppb. That was also the latest year on file. 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, and EPA recorded violations in 2017 and 2018.

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

Below EPA’s limits

52.3ppb

Highest yearly average, 2020 to 2026

2026 average: 33.9 ppb

Averaged by year, the highest was 52.3 ppb, in 2021, below EPA’s legal limit of 60 ppb. Its highest single sample was 93 ppb. In 2026, the latest year on file, its three samples averaged 33.9 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 110 ppb, in 2015, and EPA recorded violations in 2017, 2018 and 2019.

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

Contaminant or rule	Type	Period	Measured	Status
Revised Total Coliform Rule	Coliform results required a check of the system, and the check or its fixes were not done on time.EPA: Treatment Technique, Level 1 Assessment (RTCR)	April 27, 2021	—	Resolved
Total Haloacetic Acids (HAA5)	The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average	Jan. 1, 2019 to March 31, 2019	0.063 MG/L	Archived
Total Haloacetic Acids (HAA5)	The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average	Oct. 1, 2018 to Dec. 31, 2018	0.069 MG/L	Resolved
TTHM	The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average	Oct. 1, 2018 to Dec. 31, 2018	0.082 MG/L	Resolved
Total Haloacetic Acids (HAA5)	The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average	July 1, 2018 to Sept. 30, 2018	0.079 MG/L	Archived
TTHM	The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average	July 1, 2018 to Sept. 30, 2018	0.099 MG/L	Archived
TTHM	The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average	Jan. 1, 2018 to March 31, 2018	0.089 MG/L	Archived
TTHM	The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average	Oct. 1, 2017 to Dec. 31, 2017	0.089 MG/L	Archived
TTHM	The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average	July 1, 2017 to Sept. 30, 2017	0.089 MG/L	Archived
Total Haloacetic Acids (HAA5)	The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average	April 1, 2017 to June 30, 2017	0.063 MG/L	Archived
TTHM	The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average	April 1, 2017 to June 30, 2017	102 MG/L	Archived
Health-based violations only. Resolved and archived mean the utility returned to compliance or the state closed the record. 27 monitoring or reporting violations not shown.

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. Labette Co RWD 1c’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. 24, 2020 to Aug. 4, 2026.

Testing your own tap

Labette Co RWD 1c’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 Labette Co RWD 1c serves, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.