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Leavenworth 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
3,200 people
Connections
2,477
Water source
Groundwater bought from another system
Based in
Basehor, KS
County
Leavenworth
Owner
Local government
The ZIP code it serves

66007

The short answer

1 result is above the health goal. The worst: Lead, above the health goal. No health-based violations on file since 2016.

What handles it

What was found

Lead and copper: EPA SDWIS monitoring periods ending 2004 to 2023.

Haloacetic acids (HAA5) and total trihalomethanes (TTHM): Kansas’s own results, samples taken from July 20, 2020 to July 14, 2026, with EPA’s 2012 to 2019 file for earlier years.

Above the health goal1

Lead

Comes from pipes, often your own

Above the health goal

2.6ppb

90th percentile, 2021 to 2023

In the latest period, 9 in 10 homes sampled were at or below 2.6 ppb, below EPA’s action level of 15 ppb. The action level drops to 10 ppb on Nov. 1, 2027. EPA’s health goal for lead is zero.

What handles it

Below EPA’s limits2

Haloacetic acids (HAA5)

Forms or is added in treatment

Below EPA’s limits

43ppb

Highest yearly average, 2020 to 2026

2026, one sample: 29 ppb

Averaged by year, the highest was 43 ppb, in 2020, below EPA’s legal limit of 60 ppb. In 2026, the latest year on file, its one sample was 29 ppb. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 44 ppb, in 2019.

What handles it

No certification claim covers this compound yet.

Total trihalomethanes (TTHM)

Forms or is added in treatment

Below EPA’s limits

52ppb

Highest yearly average, 2020 to 2026

2026, one sample: 5.5 ppb

Averaged by year, the highest was 52 ppb, in 2020, below EPA’s legal limit of 80 ppb. In 2026, the latest year on file, its one sample was 5.5 ppb. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 52 ppb, in 2018.

What handles it

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

What handles it

A certification covers specific claims, not a whole standard. Look for these claims on the certifier’s listing, not the box. Wording varies a little: NSF writes “Lead Reduction,” WQA just “Lead.”

At the tap, or for the whole house?

Lead and copper usually come from pipes and fixtures inside or near your home. A whole-house system sits where water enters, so it cannot catch what your own plumbing adds after it. For those, the filter that counts is the one at the tap. How whole-house systems compare.

Filters with those claims on a certifier’s listing

Disclosure: TapBuff earns a commission if you buy through some links on this page. It does not change which standard or filter we name. As an Amazon Associate, TapBuff earns from qualifying purchases. How TapBuff makes money

Compare five-year costs

The best water filters for lead, ranked

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. 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. Leavenworth 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 July 20, 2020 to July 14, 2026.

Testing your own tap

Leavenworth 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 3 labs Kansas certifies closest to the area Leavenworth Co RWD 1c 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 14 miles

    Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics

    (913) 895-5800

  • Eurofins Kansas City

    Lenexa, KS · about 17 miles

    Certified for bacteria

    (319) 595-2009

  • Microbac Laboratories, Inc - Kansas

    Lenexa, KS · about 17 miles

    Certified for bacteria

    (641) 792-8451

All 47 certified labs for Kansas

Sources

PWSID KS2010323. Rebuilt from EPA data on Oct. 18, 2026.

Towns it serves

Nearby

All Kansas utilities

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