No open health-based violations on EPA record in the last 10 years; latest legal-limit breach in the period starting April 2019.
Serves about 189 people (143 connections) with surface water bought from Public Wholesale WSD 5.
From EPA's record for KS2003701. PurityMap is independent of City of Walnut.
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1 health-based violation in the last 10 years, from EPA's SDWIS compliance database.
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| Apr–Jun 2019 | Total trihalomethanes (TTHM) | 0.093 mg/L | 0.080 mg/L | Resolved |
No lab results for other contaminants (like PFAS) are on file for this system. EPA required that testing from systems serving more than 3,300 people, plus a sample of smaller ones.
Screening tells you if something is worth a closer look; a lab result is the number you can act on.
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Screening: quick check, not lab-grade
Safe Home (EnviroTestKits)
Lead, read as one of three ranges: 0–4, 5–15 or 15+ ppb
Turnaround: 5 minutes
What it can't tell you: It shows a lead range, not an exact level, and tests nothing else unless you pay extra for the optional lab test.
Lab-certified results
ETR Laboratories
50+ substances, including lead, copper, arsenic, nitrate, hardness and coliform bacteria
Environmental Testing and Research Laboratories (ETR Labs), Leominster, MA · ISO/IEC 17025:2017, ANAB certificate AT-2638 · 2–4 business days after the lab receives it
What it can't tell you: It does not test PFAS, and not every result on the panel falls under the lab's accredited scope.
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Follow this water →City of Walnut's phone number on EPA record is 620-354-6794. Its mailing address is 210 S MAIN ST, PO BOX 168, WALNUT, KS 66780.
According to EPA's record, City of Walnut uses surface water bought from Public Wholesale WSD 5.
EPA's record shows 1 health-based violation for City of Walnut in the 10 years to July 9, 2026. No open health-based violations on EPA record in the last 10 years. The latest legal-limit breach on record was in the period starting April 2019. EPA also lists 2 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in City of Walnut's latest lead and copper round, which ended in December 2025, was 1.2 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for City of Walnut. Its phone number on EPA record is 620-354-6794. Its mailing address on EPA record is 210 S MAIN ST, PO BOX 168, WALNUT, KS 66780. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.