HILLSBORO, CITY OFlikely match
City water report · 2026

Is Hillsboro Tap Water Safe? 2026 Water Quality Report

Short answer: No measured result is above a legal limit. Hillsboro, City of serves 92,632 residents.

Likely match, check your bill

HILLSBORO, CITY OF serves Hillsboro

Your water bill or annual water quality report names your actual supplier.

Source
Surface water
Lead service lines
0 lead
  • OR4101513 · 92,632 served

Your water utility

City of Hillsboro: contact and record

Every detected result

What the record shows in Hillsboro

HILLSBORO, CITY OF (EPA PWSID OR4101513) delivers surface water to 92,632 residents. This report reflects 29 individual PFAS result(s) from the source UCMR5 observations and the latest Lead & Copper Rule 90th-percentile result. Water hardness and disinfectant type are pending the utility's own annual report.

    31 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
    • Lithium
    • Lead (90th percentile)

    Coverage by group

    31 results on record
    • PFAS (forever chemicals)29 not detected
    • Metals & lead1 not detected
    • Disinfection by-productsNot monitored
    • Other1 not detected
    Track record

    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.

    Test your own tap

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

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    • 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.

    Questions

    Frequently asked questions

    Is Hillsboro tap water safe to drink?

    PurityMap does not give a safe/unsafe verdict; it shows what the public records measured. For Hillsboro, no regulated PFAS were detected in EPA's 2024 testing. HILLSBORO, CITY OF (PWSID OR4101513) has a Purity Score of 100/100 (confidence: moderate), assessed at the water-system level and computed only from contaminants that were measured. Water can change in your own pipes, so a certified test is the only way to know what comes out of your tap.

    Who provides tap water in Hillsboro?

    HILLSBORO, CITY OF (PWS ID OR4101513) is the public water system on record for Hillsboro, Oregon, serving about 92,632 people. Confirm the utility on your water bill before acting on a specific finding.

    Where does Hillsboro get its drinking water?

    Surface water (primary source of record in EPA SDWIS).

    Are PFAS "forever chemicals" in Hillsboro's water?

    None of the 29 PFAS in EPA's UCMR 5 testing (2023-07-12 to 2024-04-02) was detected. "Not detected" means below the lab's reporting limit, not proven zero.

    Is there lead in Hillsboro's tap water?

    Lead is not in Hillsboro's current published record. Lead usually enters from a building's own pipes and fixtures, so a certified home test is the way to know yours.

    What does the latest Hillsboro water report show?

    PurityMap's current record for Hillsboro holds 31 findings: 31 not detected. Each finding links to its dated public record; a parameter that was never monitored is shown as pending, not as a pass.

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    Sources and dataAll 31 records and their sourcesEPA UCMR 5 · EPA SDWIS (Lead & Copper Rule)
    31 contaminants tested — none detected
    ContaminantResultBenchmarkSampledSource
    11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)< 5 ng/LNo federal or state limit; shown for transparency2023-07-12 to 2024-04-02UCMR5 Analytical Results: HILLSBORO, CITY OF (OR4101513)
    1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS)< 5 ng/LNo federal or state limit; shown for transparency2023-07-12 to 2024-04-02UCMR5 Analytical Results: HILLSBORO, CITY OF (OR4101513)
    1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS)< 3 ng/LNo federal or state limit; shown for transparency2023-07-12 to 2024-04-02UCMR5 Analytical Results: HILLSBORO, CITY OF (OR4101513)
    1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS)< 5 ng/LNo federal or state limit; shown for transparency2023-07-12 to 2024-04-02UCMR5 Analytical Results: HILLSBORO, CITY OF (OR4101513)
    4,8-Dioxa-3H-perfluorononanoic acid (ADONA)< 3 ng/LNo federal or state limit; shown for transparency2023-07-12 to 2024-04-02UCMR5 Analytical Results: HILLSBORO, CITY OF (OR4101513)
    9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS)< 2 ng/LNo federal or state limit; shown for transparency2023-07-12 to 2024-04-02UCMR5 Analytical Results: HILLSBORO, CITY OF (OR4101513)
    Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals)< 5 ng/L10 ng/L federal MCL (2024)2023-07-12 to 2024-04-02UCMR5 Analytical Results: HILLSBORO, CITY OF (OR4101513)
    Lead (90th percentile)Non-Detect (ND)15 µg/L federal action level2022–2024 monitoring periodLead & Copper Rule 90th-percentile: HILLSBORO, CITY OF (OR4101513)
    Lithium< 9 µg/L10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit2023-07-12 to 2024-04-01UCMR5 Analytical Results: HILLSBORO, CITY OF (OR4101513)
    N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)< 5 ng/LNo federal or state limit; shown for transparency2023-07-12 to 2024-04-02UCMR5 Analytical Results: HILLSBORO, CITY OF (OR4101513)
    N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)< 6 ng/LNo federal or state limit; shown for transparency2023-07-12 to 2024-04-02UCMR5 Analytical Results: HILLSBORO, CITY OF (OR4101513)
    Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)< 20 ng/LNo federal or state limit; shown for transparency2023-07-12 to 2024-04-02UCMR5 Analytical Results: HILLSBORO, CITY OF (OR4101513)
    Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)< 3 ng/LNo federal or state limit; shown for transparency2023-07-12 to 2024-04-02UCMR5 Analytical Results: HILLSBORO, CITY OF (OR4101513)
    Perfluoro-3-methoxypropanoic acid (PFMPA)< 4 ng/LNo federal or state limit; shown for transparency2023-07-12 to 2024-04-02UCMR5 Analytical Results: HILLSBORO, CITY OF (OR4101513)
    Perfluoro-4-methoxybutanoic acid (PFMBA)< 3 ng/LNo federal or state limit; shown for transparency2023-07-12 to 2024-04-02UCMR5 Analytical Results: HILLSBORO, CITY OF (OR4101513)
    Perfluorobutanesulfonic acid (PFBS)< 3 ng/L2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit2023-07-12 to 2024-04-02UCMR5 Analytical Results: HILLSBORO, CITY OF (OR4101513)
    Perfluorobutanoic acid (PFBA)< 5 ng/LNo federal or state limit; shown for transparency2023-07-12 to 2024-04-02UCMR5 Analytical Results: HILLSBORO, CITY OF (OR4101513)
    Perfluorodecanoic acid (PFDA)< 3 ng/LNo federal or state limit; shown for transparency2023-07-12 to 2024-04-02UCMR5 Analytical Results: HILLSBORO, CITY OF (OR4101513)
    Perfluorododecanoic acid (PFDoA)< 3 ng/LNo federal or state limit; shown for transparency2023-07-12 to 2024-04-02UCMR5 Analytical Results: HILLSBORO, CITY OF (OR4101513)
    Perfluoroheptanesulfonic acid (PFHpS)< 3 ng/LNo federal or state limit; shown for transparency2023-07-12 to 2024-04-02UCMR5 Analytical Results: HILLSBORO, CITY OF (OR4101513)
    Perfluoroheptanoic acid (PFHpA)< 3 ng/LNo federal or state limit; shown for transparency2023-07-12 to 2024-04-02UCMR5 Analytical Results: HILLSBORO, CITY OF (OR4101513)
    Perfluorohexanesulfonic acid (PFHxS)< 3 ng/L10 ng/L federal MCL (2024)2023-07-12 to 2024-04-02UCMR5 Analytical Results: HILLSBORO, CITY OF (OR4101513)
    Perfluorohexanoic acid (PFHxA)< 3 ng/L400,000 ng/L Michigan EGLE state MCL (strictest US state)2023-07-12 to 2024-04-02UCMR5 Analytical Results: HILLSBORO, CITY OF (OR4101513)
    Perfluorononanoic acid (PFNA)< 4 ng/L10 ng/L federal MCL (2024)2023-07-12 to 2024-04-02UCMR5 Analytical Results: HILLSBORO, CITY OF (OR4101513)
    Perfluorooctanesulfonic acid (PFOS)< 4 ng/L4.0 ng/L federal MCL (2024)2023-07-12 to 2024-04-02UCMR5 Analytical Results: HILLSBORO, CITY OF (OR4101513)
    Perfluorooctanoic acid (PFOA)< 4 ng/L4.0 ng/L federal MCL (2024)2023-07-12 to 2024-04-02UCMR5 Analytical Results: HILLSBORO, CITY OF (OR4101513)
    Perfluoropentanesulfonic acid (PFPeS)< 4 ng/LNo federal or state limit; shown for transparency2023-07-12 to 2024-04-02UCMR5 Analytical Results: HILLSBORO, CITY OF (OR4101513)
    Perfluoropentanoic acid (PFPeA)< 3 ng/LNo federal or state limit; shown for transparency2023-07-12 to 2024-04-02UCMR5 Analytical Results: HILLSBORO, CITY OF (OR4101513)
    Perfluorotetradecanoic acid (PFTA)< 8 ng/LNo federal or state limit; shown for transparency2023-07-12 to 2024-04-02UCMR5 Analytical Results: HILLSBORO, CITY OF (OR4101513)
    Perfluorotridecanoic acid (PFTrDA)< 7 ng/LNo federal or state limit; shown for transparency2023-07-12 to 2024-04-02UCMR5 Analytical Results: HILLSBORO, CITY OF (OR4101513)
    Perfluoroundecanoic acid (PFUnA)< 2 ng/LNo federal or state limit; shown for transparency2023-07-12 to 2024-04-02UCMR5 Analytical Results: HILLSBORO, CITY OF (OR4101513)
    31 contaminants tested — none detected

    11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)

    Result
    < 5 ng/L
    Benchmark
    No federal or state limit; shown for transparency
    Sampled
    2023-07-12 to 2024-04-02

    1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS)

    Result
    < 5 ng/L
    Benchmark
    No federal or state limit; shown for transparency
    Sampled
    2023-07-12 to 2024-04-02

    1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS)

    Result
    < 3 ng/L
    Benchmark
    No federal or state limit; shown for transparency
    Sampled
    2023-07-12 to 2024-04-02

    1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS)

    Result
    < 5 ng/L
    Benchmark
    No federal or state limit; shown for transparency
    Sampled
    2023-07-12 to 2024-04-02

    4,8-Dioxa-3H-perfluorononanoic acid (ADONA)

    Result
    < 3 ng/L
    Benchmark
    No federal or state limit; shown for transparency
    Sampled
    2023-07-12 to 2024-04-02

    9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS)

    Result
    < 2 ng/L
    Benchmark
    No federal or state limit; shown for transparency
    Sampled
    2023-07-12 to 2024-04-02

    Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals)

    Result
    < 5 ng/L
    Benchmark
    10 ng/L federal MCL (2024)
    Sampled
    2023-07-12 to 2024-04-02

    Lead (90th percentile)

    Result
    Non-Detect (ND)
    Benchmark
    15 µg/L federal action level
    Sampled
    2022–2024 monitoring period

    Lithium

    Result
    < 9 µg/L
    Benchmark
    10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit
    Sampled
    2023-07-12 to 2024-04-01

    N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)

    Result
    < 5 ng/L
    Benchmark
    No federal or state limit; shown for transparency
    Sampled
    2023-07-12 to 2024-04-02

    N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)

    Result
    < 6 ng/L
    Benchmark
    No federal or state limit; shown for transparency
    Sampled
    2023-07-12 to 2024-04-02

    Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)

    Result
    < 20 ng/L
    Benchmark
    No federal or state limit; shown for transparency
    Sampled
    2023-07-12 to 2024-04-02

    Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)

    Result
    < 3 ng/L
    Benchmark
    No federal or state limit; shown for transparency
    Sampled
    2023-07-12 to 2024-04-02

    Perfluoro-3-methoxypropanoic acid (PFMPA)

    Result
    < 4 ng/L
    Benchmark
    No federal or state limit; shown for transparency
    Sampled
    2023-07-12 to 2024-04-02

    Perfluoro-4-methoxybutanoic acid (PFMBA)

    Result
    < 3 ng/L
    Benchmark
    No federal or state limit; shown for transparency
    Sampled
    2023-07-12 to 2024-04-02

    Perfluorobutanesulfonic acid (PFBS)

    Result
    < 3 ng/L
    Benchmark
    2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit
    Sampled
    2023-07-12 to 2024-04-02

    Perfluorobutanoic acid (PFBA)

    Result
    < 5 ng/L
    Benchmark
    No federal or state limit; shown for transparency
    Sampled
    2023-07-12 to 2024-04-02

    Perfluorodecanoic acid (PFDA)

    Result
    < 3 ng/L
    Benchmark
    No federal or state limit; shown for transparency
    Sampled
    2023-07-12 to 2024-04-02

    Perfluorododecanoic acid (PFDoA)

    Result
    < 3 ng/L
    Benchmark
    No federal or state limit; shown for transparency
    Sampled
    2023-07-12 to 2024-04-02

    Perfluoroheptanesulfonic acid (PFHpS)

    Result
    < 3 ng/L
    Benchmark
    No federal or state limit; shown for transparency
    Sampled
    2023-07-12 to 2024-04-02

    Perfluoroheptanoic acid (PFHpA)

    Result
    < 3 ng/L
    Benchmark
    No federal or state limit; shown for transparency
    Sampled
    2023-07-12 to 2024-04-02

    Perfluorohexanesulfonic acid (PFHxS)

    Result
    < 3 ng/L
    Benchmark
    10 ng/L federal MCL (2024)
    Sampled
    2023-07-12 to 2024-04-02

    Perfluorohexanoic acid (PFHxA)

    Result
    < 3 ng/L
    Benchmark
    400,000 ng/L Michigan EGLE state MCL (strictest US state)
    Sampled
    2023-07-12 to 2024-04-02

    Perfluorononanoic acid (PFNA)

    Result
    < 4 ng/L
    Benchmark
    10 ng/L federal MCL (2024)
    Sampled
    2023-07-12 to 2024-04-02

    Perfluorooctanesulfonic acid (PFOS)

    Result
    < 4 ng/L
    Benchmark
    4.0 ng/L federal MCL (2024)
    Sampled
    2023-07-12 to 2024-04-02

    Perfluorooctanoic acid (PFOA)

    Result
    < 4 ng/L
    Benchmark
    4.0 ng/L federal MCL (2024)
    Sampled
    2023-07-12 to 2024-04-02

    Perfluoropentanesulfonic acid (PFPeS)

    Result
    < 4 ng/L
    Benchmark
    No federal or state limit; shown for transparency
    Sampled
    2023-07-12 to 2024-04-02

    Perfluoropentanoic acid (PFPeA)

    Result
    < 3 ng/L
    Benchmark
    No federal or state limit; shown for transparency
    Sampled
    2023-07-12 to 2024-04-02

    Perfluorotetradecanoic acid (PFTA)

    Result
    < 8 ng/L
    Benchmark
    No federal or state limit; shown for transparency
    Sampled
    2023-07-12 to 2024-04-02

    Perfluorotridecanoic acid (PFTrDA)

    Result
    < 7 ng/L
    Benchmark
    No federal or state limit; shown for transparency
    Sampled
    2023-07-12 to 2024-04-02

    Perfluoroundecanoic acid (PFUnA)

    Result
    < 2 ng/L
    Benchmark
    No federal or state limit; shown for transparency
    Sampled
    2023-07-12 to 2024-04-02

    Every value is the published result from the cited public record. A reporting limit is the lowest level the method could reliably quantify; a non-detect is not a guarantee of zero.

    • UCMR5 Analytical Results

      UCMR5 Analytical Results: HILLSBORO, CITY OF (OR4101513)

      US EPA

      Published
      2026-01-15
      Newest sample
      2024-04-02
      Findings here
      30
    • State SDWIS Compliance Record

      Lead & Copper Rule 90th-percentile: HILLSBORO, CITY OF (OR4101513)

      US EPA SDWIS

      Published
      2026-07-09
      Newest sample
      2024
      Findings here
      1

    Methodology: how we analyze water. Prepared with AI assistance and reviewed by the PurityMap Editorial Team before publication.