Place carried: Santa Ana, CA
ZIP code lookup

ZIP 92702: Santa Ana, CA Tap Water

ZIP 92702 is in the Santa Ana, CA area, most likely served by CITY OF SANTA ANA. A ZIP is a postal boundary, not a service area, so confirm your supplier on your water bill.

What the record shows · CA3010038

Test results for CITY OF SANTA ANA

Results describe the water system, not a specific tap in ZIP 92702. Each bar marks the listed reference for that substance.

Full system record →
above a listed reference
3
detected, within reference or no limit
3
aesthetic measure
1
tested, not detected
25
Detected · 6 results, farthest from the reference first
  • LiLithium
    42.39µg/L
    10 µg/L EPA health reference level (screening, not a legal limit)
    Above screening · EPA UCMR 5 · 2023Evidence
  • PFOSPerfluorooctanesulfonic acid (PFOS)
    14.2ng/L
    4.0 ng/L federal MCL (2024)
    Above EPA's 2024 limit (one sample) · EPA UCMR 5 · 2023Evidence
  • PFOAPerfluorooctanoic acid (PFOA)
    8.9ng/L
    4.0 ng/L federal MCL (2024)
    Above EPA's 2024 limit (one sample) · EPA UCMR 5 · 2023Evidence
  • PFHxSPerfluorohexanesulfonic acid (PFHxS)
    8.4ng/L
    10 ng/L federal MCL (2024)
    Below the listed reference · EPA UCMR 5 · 2023Evidence
  • PFHxAPerfluorohexanoic acid (PFHxA)
    4ng/L
    400,000 ng/L Michigan EGLE state MCL (strictest US state)
    Below the listed reference · EPA UCMR 5 · 2023Evidence
  • PFPeAPerfluoropentanoic acid (PFPeA)
    5.9ng/L
    No federal or state limit; shown for transparency
    No federal or state limit · EPA UCMR 5 · 2023Evidence
Aesthetic · no federal health limit
CaCO₃Water hardness
13.8gpg
Very hard on the USGS scale · Utility CCR · 2025Evidence
Tested, not detected
Other contaminants tested
25none detected

Below each lab’s reporting limit. A result, not zero, and it covers only what was tested.

Show all 25Hide list
  • 11Cl-PF3OUdS
  • 4:2 FTS
  • 6:2 FTS
  • 8:2 FTS
  • 9Cl-PF3ONS
  • ADONA
  • HFPO-DA (GenX)
  • NEtFOSAA
  • NFDHA
  • NMeFOSAA
  • PFBA
  • PFBS
  • PFDA
  • PFDoA
  • PFEESA
  • PFHpA
  • PFHpS
  • PFMBA
  • PFMPA
  • PFNA
  • PFPeS
  • PFTA
  • PFTrDA
  • PFUnA
  • Lead (90th percentile)
Next step

Go from this record to a decision.

Three results are above their listed reference. Lead mostly enters from building plumbing, which this system-level record can’t see.

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

    Watersafe Drinking Water Test Kit

    Silver Lake Research

    Lead, bacteria, nitrate, copper, iron, chlorine, hardness and pH

    • Turnaround: Minutes; the bacteria test can take up to 48 hours

    What it can't tell you: Each test gives a yes/no or a rough range, not a lab number, and it cannot detect PFAS or arsenic.

  • 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 → · Compare every kit we list

Questions

Frequently asked

Follow this water

Follow ZIP 92702's water

Get an email when new results are published.

Follow ZIP 92702's water →
Which water system serves ZIP 92702?

The public system on record for ZIP 92702 (Santa Ana, CA) is CITY OF SANTA ANA. A ZIP is a postal boundary, not a service area. Confirm your supplier on your water bill.

Is the water in ZIP 92702 the same as Santa Ana's?

ZIP 92702 falls within the Santa Ana, CA area, but a ZIP code can span more than one utility. Read the serving system's own record for the results that apply to your address.

How do I find the exact water system for ZIP 92702?

Check the utility name on your water bill, or resolve it from your street address with Find My Water. The ZIP-level view lists candidate systems, not a confirmed household match.