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© 2026 PurityMap
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  1. PurityMap
  2. Water Quality
  3. California
  4. CITY OF BREACA3010002
Change
Updated 2026-09-16
Water system record · CA3010002

City of Brea

City of Brea serves 48,479 people from surface water. 31 results are on record. No measured result is above a legal limit; lithium sits above a screening level.

Explore the findingsIs this my supplier?Follow
Purity ScoreHow the 100 is builtCA3010002 · 48,479 served
100/100 · ExcellentConfidence: moderate
above a reference
1
detected, within reference or no limit
0
not detected
30
  • PFAS (forever chemicals)100
  • Metals & lead100
  • Disinfection by-products—Not monitored
  • Track record (violations)100

Subject scores out of 100. 3 of 4 subjects measured; disinfection pending a source.

Not in this score: Lithium. Listed in the findings, not graded by the Purity Score.

System-level record, not a test of your tap. How we score

Source
Surface Water
Serves 1 city area on record.
Population
48,479
as reported to EPA
Type
Community Water System
California
Cities
1
Brea
Records
31 results
latest 2023
FindingsAll resultsComplianceWhat you can doProductsRecordsFAQ
What stands out

No measured result is above a legal limit

No measured result is above a legal limit; lithium sits above a screening level.

Coverage by group

31 results on record
  • PFAS (forever chemicals)
    29 not detected
  • Metals & lead
    1 not detected
  • Disinfection by-products
    Not monitored
  • Other
    1 above
  • Above a limit or reference
  • Detected
  • Not detected
  • Not monitored
Every detected result

One detected result

  • Li
    LithiumEPA UCMR 5 · 2023
    10 µg/L EPA health reference level (screening, not a legal limit)
    56.2µg/L
    Above screening
30 other contaminants tested, none detected
  • 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
  • PFHxA
  • PFHxS
  • PFMBA
  • PFMPA
  • PFNA
  • PFOA
  • PFOS
  • PFPeA
  • PFPeS
  • PFTA
  • PFTrDA
  • PFUnA
  • Lead (90th percentile)

Compliance and coverage

Lead service lines

12,715service lines inventoried

  • Lead0
  • Galvanized, to replace0
  • Material unknown0
  • Not lead12,715

From the utility's inventory reported to EPA (2026Q2). Look up your address with the utility.

Compliance

0health-based violations in the last 10 years

From EPA SDWIS. A clean violation history means no enforcement action was recorded; it does not cover contaminants without a limit.

Not in this recordDisinfection by-products weren't monitored in this dataset

No result is not a pass. Your utility's annual water quality report may list them, and a certified lab test covers your own tap.

A federal limit (an MCL or action level) is an enforceable legal cap; a health goal is often stricter. Meeting the limit is a compliance fact, not a health clearance, and PurityMap publishes no overall compliance verdict.

What you can do

Test first, then treat what was found

  1. 01 · TestTest your own tap

    The records describe the system. A certified lab test shows what reaches your glass.

    Certified lab
    How to test your tap →
  2. 02 · LithiumDepends on the contaminant

    Lithium 56.2 µg/L, above the 10.0 µg/L EPA health reference level

    The certifier's listing for each named contaminant
    Treatment for Lithium →

Understand water treatment technologies →

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.

    Check price on Amazon
  • Lab-certified results

    ETR Labs Basic Water Quality Test Kit

    ETR Laboratories

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

    • Analyzed by Environmental Testing and Research Laboratories (ETR Labs), Leominster, MA · ISO/IEC 17025:2017, ANAB certificate AT-2638
    • Turnaround: 2–4 business days after the lab receives it

    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.

    Check price on Amazon

When your results arrive, read them here →

Commercial

No certified match for these concerns yet

Each card names which of this system’s findings its current certification covers, and which it doesn’t.

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.

No product in our catalogue has verified certification for these concerns yet.

Questions

Frequently asked questions

Who does CITY OF BREA serve?

CITY OF BREA (PWS ID CA3010002) is a public water system serving 48,479 people in Brea, California.

Where does CITY OF BREA get its water?

CITY OF BREA is on record as drawing from surface water. The source shapes which contaminants matter most for this system.

What does CITY OF BREA's monitoring record show?

PurityMap's record for CITY OF BREA holds 31 findings: 1 above a reference and 30 not detected, from 31 evidence records. Every finding links to its source; a substance that was never monitored is shown as pending, not as a pass.

Is CITY OF BREA's water safe to drink?

PurityMap does not issue a safety verdict. It publishes CITY OF BREA's measured results against each contaminant's benchmark so you can read them in context. Safety depends on the specific finding, your plumbing, and how the water reaches your tap.

How current is this CITY OF BREA data?

The latest published record for CITY OF BREA is dated 2026-09-16. Utilities report on regulatory cycles, so results reflect the monitoring period rather than a live reading.

Does this assessment represent my home's tap water?

No. It is assessed at the water-system level from CITY OF BREA's own monitoring. It does not cover the service line to your building or the plumbing inside it, which can add lead and other metals after the water leaves the system. A tap test is the way to know what reaches your glass.

What contaminants were detected in CITY OF BREA?

Lithium was detected in this record. Each finding shows its measured value, its reference and its source on this page.

Follow this water

Follow City of Brea

One email when a new sampling round is published, a result moves above or below its reference, or the system's score changes.

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Cities served by this system
  • Brea

As listed for this system in EPA's records. Your water bill names your supplier.

Sources and dataAll 31 records and their sourcesEPA UCMR 5 · EPA SDWIS (Lead & Copper Rule)+
SubstanceResultReferenceSampledStatusEvidence
11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)< 5 ng/LNo federal or state limit; shown for transparency2023-01-17 to 2023-10-19Not detected—
1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS)< 3 ng/LNo federal or state limit; shown for transparency2023-01-17 to 2023-10-19Not detected—
1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS)< 5 ng/LNo federal or state limit; shown for transparency2023-01-17 to 2023-10-19Not detected—
1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS)< 5 ng/LNo federal or state limit; shown for transparency2023-01-17 to 2023-10-19Not detected—
9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS)< 2 ng/LNo federal or state limit; shown for transparency2023-01-17 to 2023-10-19Not detected—
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)< 3 ng/LNo federal or state limit; shown for transparency2023-01-17 to 2023-10-19Not detected—
Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals)< 5 ng/L10 ng/L federal MCL (2024)2023-01-17 to 2023-10-19Not detected—
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)< 5 ng/LNo federal or state limit; shown for transparency2023-01-17 to 2023-10-19Not detected—
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)< 20 ng/LNo federal or state limit; shown for transparency2023-01-17 to 2023-10-19Not detected—
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)< 6 ng/LNo federal or state limit; shown for transparency2023-01-17 to 2023-10-19Not detected—
Perfluorobutanoic acid (PFBA)< 5 ng/LNo federal or state limit; shown for transparency2023-01-17 to 2023-10-19Not detected—
Perfluorobutanesulfonic acid (PFBS)< 3 ng/L2,000 ng/L EPA health advisory (screening, not a legal limit)2023-01-17 to 2023-10-19Not detected—
Perfluorodecanoic acid (PFDA)< 3 ng/LNo federal or state limit; shown for transparency2023-01-17 to 2023-10-19Not detected—
Perfluorododecanoic acid (PFDoA)< 3 ng/LNo federal or state limit; shown for transparency2023-01-17 to 2023-10-19Not detected—
Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)< 3 ng/LNo federal or state limit; shown for transparency2023-01-17 to 2023-10-19Not detected—
Perfluoroheptanoic acid (PFHpA)< 3 ng/LNo federal or state limit; shown for transparency2023-01-17 to 2023-10-19Not detected—
Perfluoroheptanesulfonic acid (PFHpS)< 3 ng/LNo federal or state limit; shown for transparency2023-01-17 to 2023-10-19Not detected—
Perfluorohexanoic acid (PFHxA)< 3 ng/L400,000 ng/L Michigan EGLE state MCL (strictest US state)2023-01-17 to 2023-10-19Not detected—
Perfluorohexanesulfonic acid (PFHxS)< 3 ng/L10 ng/L federal MCL (2024)2023-01-17 to 2023-10-19Not detectedView evidence
Perfluoro-4-methoxybutanoic acid (PFMBA)< 3 ng/LNo federal or state limit; shown for transparency2023-01-17 to 2023-10-19Not detected—
Perfluoro-3-methoxypropanoic acid (PFMPA)< 4 ng/LNo federal or state limit; shown for transparency2023-01-17 to 2023-10-19Not detected—
Perfluorononanoic acid (PFNA)< 4 ng/L10 ng/L federal MCL (2024)2023-01-17 to 2023-10-19Not detected—
Perfluorooctanoic acid (PFOA)< 4 ng/L4.0 ng/L federal MCL (2024)2023-01-17 to 2023-10-19Not detectedView evidence
Perfluorooctanesulfonic acid (PFOS)< 4 ng/L4.0 ng/L federal MCL (2024)2023-01-17 to 2023-10-19Not detectedView evidence
Perfluoropentanoic acid (PFPeA)< 3 ng/LNo federal or state limit; shown for transparency2023-01-17 to 2023-10-19Not detected—
Perfluoropentanesulfonic acid (PFPeS)< 4 ng/LNo federal or state limit; shown for transparency2023-01-17 to 2023-10-19Not detected—
Perfluorotetradecanoic acid (PFTA)< 8 ng/LNo federal or state limit; shown for transparency2023-01-17 to 2023-10-19Not detected—
Perfluorotridecanoic acid (PFTrDA)< 7 ng/LNo federal or state limit; shown for transparency2023-01-17 to 2023-10-19Not detected—
Perfluoroundecanoic acid (PFUnA)< 2 ng/LNo federal or state limit; shown for transparency2023-01-17 to 2023-10-19Not detected—
Lithium56.2 µg/L10 µg/L EPA health reference level (screening, not a legal limit)2023-01-17 to 2023-10-19Above guidelineView evidence
Lead (90th percentile)Non-Detect (ND)15 µg/L federal action level2021–2023 monitoring periodNot detectedView evidence
  • UCMR5 Analytical Results

    UCMR5 Analytical Results: CITY OF BREA (CA3010002)

    US EPA

    Published
    2026-01-15
    Newest sample
    2023-10-19
    Findings here
    30

    View source ↗Source record

  • State SDWIS Compliance Record

    Lead & Copper Rule 90th-percentile: CITY OF BREA (CA3010002)

    US EPA SDWIS

    Published
    2026-07-09
    Newest sample
    2023
    Findings here
    1

    View source ↗Source record

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