40743
London, KY
LONDON UTILITY COMMISSION

Is tap water in London (ZIP 40743) safe to drink?

Some concern
Last tested: July 2024
Source: Official EPA UCMR5 federal monitoring data. Last tested July 2024.

The short answer for London (ZIP 40743)

London tap water has 2 detected contaminants, currently below EPA limits (tested July 2024). 4:2 FTS measured closest to the threshold. See the full compound-by-compound report.

The health risk for London

PFAS traces were detected in local water tests, though levels are currently below EPA limits. Since no amount of PFAS is considered completely safe by health researchers, a certified filter adds a meaningful layer of protection, especially for children.
  • PFAS or other chemicals detected; no confirmed exceedances in multiple samples.
4:2 FTS concentration (µg/L) July 2024
0 µg/L 0.003 µg/L 0.01 µg/L
0.003 µg/L
Detected
µg/L
0.003 µg/L
EPA limit
guideline
100% of limit
Comparison
vs. guideline
EPA limit: 0.003 µg/L | Your water: 0.003 µg/L
Add a Layer of Protection for London Tap Water

4:2 FTS (a PFAS 'forever chemical') was detected below EPA limits. A certified filter can still add an extra layer of protection.

Water filter recommendation for London tap water: Epic Pure XP Water Filter Pitcher
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Most elevated compounds
Compound Measurement EPA Limit Comparison
4:2 FTS
Tested: July 2024 · London Water Treatment Plant P01		 0.003 µg/L 0.003 µg/L 100% of limit
View all tested compounds

London Water Treatment Plant P01 · Tested: July 2024

Compound Measurement EPA Limit Comparison
4:2 FTS 0.003 µg/L 0.003 µg/L 100% of limit
PFHxA 0.003 µg/L 3 µg/L 0.1% of limit
lithium <9.000 µg/L 10 µg/L Below limit
PFHxS <0.003 µg/L 0.004 µg/L Below limit
HFPO-DA <0.005 µg/L 0.01 µg/L Below limit
PFNA <0.004 µg/L 0.01 µg/L Below limit
PFBA <0.005 µg/L 6 µg/L Below limit
11Cl-PF3OUdS <0.005 µg/L 0.005 µg/L Below limit
4:2 FTS <0.003 µg/L 0.003 µg/L Below limit
6:2 FTS <0.005 µg/L 0.005 µg/L Below limit
8:2 FTS <0.005 µg/L 0.005 µg/L Below limit
9Cl-PF3ONS <0.002 µg/L 0.002 µg/L Below limit
ADONA <0.003 µg/L 0.003 µg/L Below limit
PFBS <0.003 µg/L 0.003 µg/L Below limit
PFDA <0.003 µg/L 0.003 µg/L Below limit
PFDoA <0.003 µg/L 0.003 µg/L Below limit
PFHpA <0.003 µg/L 0.003 µg/L Below limit
PFHpS <0.003 µg/L 0.003 µg/L Below limit
PFOA <0.004 µg/L 0.004 µg/L Below limit
PFOS <0.004 µg/L 0.004 µg/L Below limit
PFPeA <0.003 µg/L 0.003 µg/L Below limit
PFTrDA <0.007 µg/L 0.007 µg/L Below limit
PFUnA <0.002 µg/L 0.002 µg/L Below limit

Water utilities serving ZIP 40743

Service area boundaries are approximate and based on state filings or modeled estimates. Contact your utility to confirm exact service at a specific address.

Modeled boundaries are shown with a dashed outline.

Frequently Asked Questions about ZIP 40743 Tap Water

What's in ZIP 40743 tap water?

ZIP 40743 has 2 detected contaminants below EPA limits in this dataset. 4:2 FTS measured closest to its guideline.

Will boiling ZIP 40743 tap water remove 4:2 FTS?

Boiling tap water can kill many pathogens, but it does not remove most chemical contaminants tracked in EPA monitoring. Several dissolved contaminants can even concentrate as water evaporates. For the chemical contaminants reported in ZIP 40743, a certified filter is more reliable.

Do basic pitcher filters remove 4:2 FTS?

Basic pitcher filters are typically rated for chlorine, taste, and odor (NSF/ANSI 42), not for the broader list of contaminants tracked in EPA monitoring. Match the certification (NSF/ANSI 42, 53, 58, or P473) to the specific compounds listed in this report before assuming a filter helps.

Who provides tap water in ZIP 40743?

Public records identify LONDON UTILITY COMMISSION as a primary water system associated with ZIP 40743. Service boundaries can vary by address, so confirm exact service with the utility.

When was ZIP 40743 tap water last tested?

The most recent test date used in this report is July 2024. EnviroClarity last refreshed this page on 2026-05-05.

Where can I find the official water quality report for ZIP 40743?

Every U.S. public water system is required to publish an annual Consumer Confidence Report (CCR). Contact LONDON UTILITY COMMISSION or visit their website for the latest official report covering ZIP 40743. The EPA also maintains a national CCR locator.

Primary source EPA UCMR5 (2023-2025)
Guideline source EPA drinking water standard (4:2 FTS: 0,003 µg/L)
Last tested July 2024
Last page update 2026-05-05

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    Data reflects publicly reported utility records from EPA datasets and local utility disclosures. This information is educational and not medical advice.

    Filter London tap water → see certified options