Concern carried to Treatment and Products
Dayton, OH · Lead

Is There Lead in Dayton Tap Water?

Lead was measured above the federal action level in Dayton. The 90th-percentile tap result was 470 µg/L, above the 15 µg/L action level.

  • DAYTON PUBLIC WATER SYSTEM · PWSID OH5703512
  • Purity Score 14 · Poor
  • Confidence: moderate
Lead service lines in Dayton
9,393lead lines of 64,726 in EPA’s inventory (2026Q2)
  • Lead9,393
  • Galvanized, to replace527
  • Unknown material4
  • Not lead54,802
4 lines are of unknown material and may include lead. Ask the utility whether your service line has been identified.
How Dayton comparesHigher than 99% of 2,485 cities with a detected value2,485 cities detected lead; 1,258 more were below the reporting limit and aren’t plotted. A position here is not a verdict on the water.
Test first

Plumbing inside a home can add lead the record can’t show.

A tap test tells you what reaches your glass. If lead is a concern, these carry a lead reduction claim:

How to test your tap

Test your own tap

Screening tells you if something is worth a closer look; a lab result is the number you can act on.

As an Amazon Associate, PurityMap earns from qualifying purchases. Affiliate disclosure.

  • Screening: quick check, not lab-grade

    Safe Home DIY Lead in Drinking Water Combo Test Kit

    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 Labs Basic Water Quality Test Kit

    ETR Laboratories

    50+ substances, including lead, copper, arsenic, nitrate, hardness and coliform bacteria

    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.

Commercial

Certified for lead, the concern found here

Each product has a current certification record covering lead.

As an Amazon Associate, PurityMap earns from qualifying purchases. A product appears here only when a current certification record covers at least one identified concern; every concern stays listed. The retail offer is looked up afterwards and never changes which products appear or their order. Affiliate disclosure.

Aquasana Claryum 3-Stage Max Flow Under-Sink Filter (AQ-6300M)

Certified · NSF/ANSI 53 · Lead

Not for: treating every tap in the home, a whole-home hard-water or scale problem and 3 more

Aquasana Clean Water Machine Countertop Filter (AQ-CWM2)

Certified · NSF/ANSI 53 · Lead

Not for: treating every tap in the home, a whole-home hard-water or scale problem and 1 more

AquaTru Classic Countertop Reverse-Osmosis Purifier (AT2000)

Certified · NSF/ANSI 58 · Lead

Not for: treating every tap in the home, a whole-home hard-water or scale problem and 1 more

Culligan ZeroWater 10-Cup Pitcher (ZEROP10)

Certified · NSF/ANSI 53 · Lead

Not for: treating every tap in the home, a whole-home hard-water or scale problem and 1 more

Under-Sink Carbon Block Filter

Certified · NSF/ANSI 53 · Lead

Not for: treating every tap in the home, a whole-home hard-water or scale problem and 2 more

Under-Sink Reverse-Osmosis System

Certified · NSF/ANSI 58 · Lead

Not for: treating every tap in the home, a whole-home hard-water or scale problem and 3 more

Waterdrop G3P600 Tankless Reverse-Osmosis System

Certified · NSF/ANSI 58 · Lead

Not for: treating every tap in the home, a whole-home hard-water or scale problem and 3 more

Whirlpool Filter 3 Refrigerator Water Filter (WHR3RXD1)

Certified · NSF/ANSI 53 · Lead

Not for: treating every tap in the home, a whole-home hard-water or scale problem and 1 more

Questions

Frequently asked

Sources
UCMR5 Analytical Results: DAYTON PUBLIC WATER SYSTEM (OH5703512)US EPA · 2026-01-15
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Lead & Copper Rule 90th-percentile: DAYTON PUBLIC WATER SYSTEM (OH5703512)US EPA SDWIS · 2026-07-09
View ↗
Is there lead in Dayton tap water?

DAYTON PUBLIC WATER SYSTEM's most recent lead 90th-percentile result (2024–2026) was 470 µg/L, above the 15 µg/L action level. It comes from sampled homes; your own pipes decide what reaches your tap.

Does Dayton have lead service lines?

In EPA's service line inventory (2026Q2), DAYTON PUBLIC WATER SYSTEM reported 9,393 lead service lines, 527 galvanized lines requiring replacement and 4 of unknown material, out of 64,726 lines in total. Unknown lines have not yet been identified and may include lead.

How do I know if my home has a lead service line?

Ask DAYTON PUBLIC WATER SYSTEM whether your address appears in its service line inventory, which utilities must publish. You can also look where the water pipe enters your home: lead pipe is dull grey, soft, and shows shiny metal when scratched gently.

How do I reduce lead in my water?

Run the cold tap for a few minutes after water has sat for hours, use only cold water for drinking and cooking, and use a filter certified to NSF/ANSI 53 for lead reduction. Replacing a lead service line removes the main source.