Concern carried to Treatment and Products
Laguna Niguel, CA · Lead

Is There Lead in Laguna Niguel Tap Water?

Lead was not detected in Laguna Niguel’s latest sampling.

  • MOULTON NIGUEL WATER DISTRICT · PWSID CA3010073
  • Purity Score 100 · Excellent
  • Confidence: moderate
Lead service lines in Laguna Niguel
0lead lines of 52,442 in EPA’s inventory (2026Q2)
  • Lead0
  • Galvanized, to replace0
  • Unknown material0
  • Not lead52,442
Ask the utility whether your service line has been identified.
How Laguna Niguel compares2,738 cities have a detected lead valueLaguna Niguel's lead result was below the lab's reporting limit, so it is not plotted. 2,738 cities detected lead; 1,407 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.

When your results arrive, read them here →

Commercial

Products for lead

Lead isn't a concern in Laguna Niguel’s record, so no product is matched here. Open one to see what its certification covers.

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.

Results as a table1 result with limit, status, sample date and source
Lead results for MOULTON NIGUEL WATER DISTRICT (PWSID CA3010073), Laguna Niguel, CA
ContaminantResultLimitStatusSampledSource
Lead (90th percentile)Non-Detect (ND)15 µg/L federal action levelNot detected above the reporting limit2022–2024 monitoring periodLead & Copper Rule 90th-percentile: MOULTON NIGUEL WATER DISTRICT (CA3010073)
Questions

Frequently asked

Sources
UCMR5 Analytical Results: MOULTON NIGUEL WATER DISTRICT (CA3010073)US EPA · 2026-01-15
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Lead & Copper Rule 90th-percentile: MOULTON NIGUEL WATER DISTRICT (CA3010073)US EPA SDWIS · 2026-07-09
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Moulton Niguel Water District 2025 Consumer Confidence Report (CCR)Moulton Niguel Water District · 2025-01-01
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Does Laguna Niguel have lead service lines?

In EPA's service line inventory (2026Q2), MOULTON NIGUEL WATER DISTRICT reported 0 lead service lines, 0 galvanized lines requiring replacement and 0 of unknown material, out of 52,442 lines in total.

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

Ask MOULTON NIGUEL WATER DISTRICT 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.