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Liscomb Water Supply

What EPA’s and Iowa’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
291 people
Connections
115
Water source
Groundwater bought from another system
Based in
Liscomb, IA
County
Marshall
Owner
Local government
The ZIP code it serves

50148

The short answer

Nothing in EPA’s and Iowa’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

None of the contaminants in the records below were found at or above the reporting levels.

3 compounds tested and not foundBelow the reporting level in every sample. Not found is not the same as zero.
  • Haloacetic acids (HAA5)
  • Lead
  • Total trihalomethanes (TTHM)

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 Iowa’s own from 2022 on, with EPA’s national file for 2012 to 2019. Liscomb Water Supply’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; Iowa’s results run from July 7, 2022 to July 16, 2025.

Testing your own tap

Liscomb Water Supply’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 Iowa certifies.

The 3 labs Iowa certifies closest to the area Liscomb Water Supply serves, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.

  • AgSource

    Ellsworth, IA · about 30 miles

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

    (515) 297-8103

  • Microbac Laboratories - Newton

    Newton, IA · about 33 miles

    Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts

    (641) 792-8451

  • Eurofins - Cedar Falls

    Cedar Falls, IA · about 35 miles

    Certified for bacteria, nitrate, minerals and other inorganics

    (319) 277-2401

State Hygienic Laboratory at the University of Iowa: Through the Grants-to-Counties program, private well owners in participating counties can have their water tested for total coliform bacteria and nitrate. Start with the county sanitarian at your county health department. No cost in a participating county. The Grants-to-Counties Program, State Hygienic Lab at the University of Iowa.

All 36 certified labs for Iowa

Sources

PWSID IA6462087. Rebuilt from EPA data on Oct. 18, 2026.

Also in Marshall County

All Iowa utilities

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