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City of Longton

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
277 people
Connections
172
Water source
Surface water bought from another system
Based in
Longton, KS
County
Elk
Owner
Local government
The ZIP code it serves

67352

The short answer

2 results are above EPA’s legal limit, and 1 more is above the health goal. The worst: Total trihalomethanes (TTHM), above the legal limit. 17 health-based violations since 2016.

What handles it

What was found

Lead and copper: EPA SDWIS monitoring periods ending 2007 to 2025.

Total trihalomethanes (TTHM) and haloacetic acids (HAA5): Kansas’s own results, samples taken from March 9, 2020 to Aug. 25, 2026, with EPA’s 2012 to 2019 file for earlier years.

Above the legal limit2

Total trihalomethanes (TTHM)

Forms or is added in treatment

Above the legal limit

101ppb

Highest yearly average, 2020 to 2026

2026 average: 54 ppb

Averaged by year, the highest was 101 ppb, in 2024, above EPA’s legal limit of 80 ppb. Its highest single sample was 260 ppb. In 2026, the latest year on file, its three samples averaged 54 ppb. EPA recorded violations for total trihalomethanes (TTHM) at this utility in 2024 and 2025. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 243 ppb, in 2012, and EPA recorded violations in 2012, 2013 and 2017.

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

Above the legal limit

64ppb

Highest yearly average, 2020 to 2026

2026 average: 35.7 ppb

Averaged by year, the highest was 64 ppb, in 2024, above EPA’s legal limit of 60 ppb. Its highest single sample was 87 ppb. In 2026, the latest year on file, its three samples averaged 35.7 ppb. EPA recorded violations for haloacetic acids (HAA5) at this utility in 2024 and 2025. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 127 ppb, in 2013, and EPA recorded violations in 2012 and 2013.

What handles it

No certification claim covers this compound yet.

Above the health goal1

Lead

Comes from pipes, often your own

Above the health goal

0.6ppb

90th percentile, 2023 to 2025

In the latest period, 9 in 10 homes sampled were at or below 0.6 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

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.”

  • NSF/ANSI 53

    Claims: Trihalomethanes (TTHM) Reduction, Lead Reduction

    For: Total trihalomethanes (TTHM), Lead

    Other certifiers’ wording: VOC Reduction

  • NSF/ANSI 58

    Claims: Trihalomethanes (TTHM) Reduction, Lead Reduction

    For: Total trihalomethanes (TTHM), 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

Contaminant or ruleTypePeriodMeasuredStatus
Total Haloacetic Acids (HAA5)The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageApril 1, 2025 to June 30, 20250.064 MG/LResolved
Total Haloacetic Acids (HAA5)The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageJan. 1, 2025 to March 31, 20250.077 MG/LResolved
TTHMThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageJan. 1, 2025 to March 31, 2025104 UG/LResolved
Total Haloacetic Acids (HAA5)The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageOct. 1, 2024 to Dec. 31, 20240.064 MG/LResolved
TTHMThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageOct. 1, 2024 to Dec. 31, 2024101 UG/LResolved
Total Haloacetic Acids (HAA5)The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageJuly 1, 2024 to Sept. 30, 20240.065 MG/LResolved
TTHMThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageJuly 1, 2024 to Sept. 30, 2024119 UG/LResolved
TTHMThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageApril 1, 2024 to June 30, 20240.12 MG/LResolved
ChloramineNon-Acute MRDLOct. 1, 2020 to Dec. 31, 2020—Resolved
ChloramineNon-Acute MRDLJuly 1, 2020 to Sept. 30, 2020—Resolved
ChloramineNon-Acute MRDLApril 1, 2020 to June 30, 2020—Resolved
ChloramineNon-Acute MRDLJan. 1, 2020 to March 31, 2020—Resolved
ChloramineNon-Acute MRDLOct. 1, 2019 to Dec. 31, 2019—Resolved
ChloramineNon-Acute MRDLJuly 1, 2019 to Sept. 30, 2019—Resolved
ChloramineNon-Acute MRDLApril 1, 2019 to June 30, 2019—Resolved
ChloramineNon-Acute MRDLJuly 1, 2018 to Sept. 30, 2018—Resolved
TTHMThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageApril 1, 2017 to June 30, 20170.081 MG/LResolved
Health-based violations only. Resolved and archived mean the utility returned to compliance or the state closed the record. 5 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. City of Longton’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 March 9, 2020 to Aug. 25, 2026.

Testing your own tap

City of Longton’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 2 labs Kansas certifies closest to the area City of Longton serves, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.

  • Meridian Analytical Laboratory - Wichita

    Wichita, KS · about 69 miles

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

    (316) 618-8787

  • Pace Analytical Services, Inc - Frontenac

    Frontenac, KS · about 73 miles

    Certified for bacteria

    (913) 599-5665

All 47 certified labs for Kansas

Sources

PWSID KS2004903. Rebuilt from EPA data on Oct. 18, 2026.

Also in Elk County

All Kansas utilities

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