SAN JOSE WATERlikely match
City water report · 2026

Is Campbell Tap Water Safe? 2026 Water Quality Report

Short answer: PFOS is above its federal limit (a 2024 limit that water systems have until at least 2029 to meet); everything else measured is within its reference or not detected. San Jose Water serves 1,039,920 residents.

Likely match, check your bill

SAN JOSE WATER serves Campbell

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

Source
Surface water
  • SAN JOSE WATERThis report
    CA4310011 · 1,039,920 served

Also supplies: Monte Sereno

What stands out

One PFAS above the 2024 federal limit

The bar is drawn in blocks of the 4.0 ng/L federal MCL (2024), so the length shows how far above it the result sits.

PFOS

Perfluorooctanesulfonic acid

1.6× the limit

6.2ng/L

Each block = 4.0 ng/L federal MCL (2024)

EPA UCMR 5 · sampled 2023Evidence

Coverage by group

31 results on record
  • PFAS (forever chemicals)1 above · 1 detected · 27 not detected
  • Metals & lead1 not detected
  • Disinfection by-productsNot monitored
  • Other1 detected
Every detected result

3 detected results, by distance from their limit

SAN JOSE WATER (EPA PWSID CA4310011) delivers surface water to 1,039,920 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.

28 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
  • PFMBA
  • PFMPA
  • PFNA
  • PFOA
  • PFPeA
  • PFPeS
  • PFTA
  • PFTrDA
  • PFUnA
  • Lead (90th percentile)
Track record

1health-based violation in the last 10 years

From EPA SDWIS. Counted once per contaminant per year, as in the Track record score.

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.

Health-based violations, last 10 years

Every filing is listed; the Track record score counts at most one per contaminant per year.

Filings 2014–2023
  • Surface Water Treatment Rule

Resolved

  1. Surface Water Treatment RuleTT

    to Resolved

    EPA status: ResolvedSDWIS ID 9705007

Commercial

Certified for a concern found here

Each card names which Campbell 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.

Under-Sink Filter

Aquasana Claryum 2-Stage Under-Sink Filter (AQ-5200)

  • PFOS: eligible, evidence match
  • Not established: PFHxS
Not suitable for (5)
  • Treating every tap in the home
  • A whole-home hard-water or scale problem
  • All PFAS: its evidence covers only the compounds it names
  • Anyone who can't plumb, drill or hire an installer
  • Renters who can't modify plumbing
Under-Sink Filter

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

  • PFOS: eligible, evidence match
  • Not established: PFHxS
Not suitable for (5)
  • Treating every tap in the home
  • A whole-home hard-water or scale problem
  • All PFAS: its evidence covers only the compounds it names
  • Anyone who can't plumb, drill or hire an installer
  • Renters who can't modify plumbing
See all 9 products certified for a Campbell concern →
Countertop System

Aquasana Clean Water Machine Countertop Filter (AQ-CWM2)

  • PFOS: eligible, evidence match
  • Not established: PFHxS
Not suitable for (3)
  • Treating every tap in the home
  • A whole-home hard-water or scale problem
  • All PFAS: its evidence covers only the compounds it names
Countertop System

Patriot Pure Ultimate Water Filtration System

  • PFOS: eligible, evidence match
  • Not established: PFHxS
Not suitable for (3)
  • Treating every tap in the home
  • A whole-home hard-water or scale problem
  • All PFAS: its evidence covers only the compounds it names
Countertop System

AquaTru Carafe Countertop Reverse-Osmosis Purifier (AT100)

  • PFOS: eligible, evidence match
  • Not established: PFHxS
Not suitable for (3)
  • Treating every tap in the home
  • A whole-home hard-water or scale problem
  • All PFAS: its evidence covers only the compounds it names
Countertop System

AquaTru Classic Countertop Reverse-Osmosis Purifier (AT2000)

  • PFOS: eligible, evidence match
  • Not established: PFHxS
Not suitable for (3)
  • Treating every tap in the home
  • A whole-home hard-water or scale problem
  • All PFAS: its evidence covers only the compounds it names
Under-Sink Filter

Waterdrop G3P600 Tankless Reverse-Osmosis System

  • PFOS: eligible, evidence match
  • Not established: PFHxS
Not suitable for (5)
  • Treating every tap in the home
  • A whole-home hard-water or scale problem
  • All PFAS: its evidence covers only the compounds it names
  • Anyone who can't plumb, drill or hire an installer
  • Renters who can't modify plumbing
Under-Sink Filter

Waterdrop G3P800 Tankless Reverse-Osmosis System

  • PFOS: eligible, evidence match
  • Not established: PFHxS
Not suitable for (5)
  • Treating every tap in the home
  • A whole-home hard-water or scale problem
  • All PFAS: its evidence covers only the compounds it names
  • Anyone who can't plumb, drill or hire an installer
  • Renters who can't modify plumbing
Refrigerator Filter

Whirlpool Filter 3 Refrigerator Water Filter (WHR3RXD1)

  • PFOS: eligible, evidence match
  • Not established: PFHxS
Not suitable for (3)
  • Treating every tap in the home
  • A whole-home hard-water or scale problem
  • All PFAS: its evidence covers only the compounds it names
Questions

Frequently asked questions

Is Campbell tap water safe to drink?

PurityMap does not give a safe/unsafe verdict; it shows what the public records measured. For Campbell, PFOS 6.2 ng/L was measured above the 4 ng/L federal limit in EPA's 2024 testing. SAN JOSE WATER (PWSID CA4310011) has a Purity Score of 66/100 (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 Campbell?

SAN JOSE WATER (PWS ID CA4310011) is the public water system on record for Campbell, California, serving about 1,039,920 people. Confirm the utility on your water bill before acting on a specific finding.

Where does Campbell get its drinking water?

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

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

Yes. In EPA's UCMR 5 testing (2023-02-16 to 2025-02-11), PFOS was measured at 6.2 ng/L against a 4 ng/L federal limit. PFHxS was detected below its limit. Reverse osmosis and filters certified to NSF/ANSI 53 for PFOA/PFOS reduce them at the tap.

Is there lead in Campbell's tap water?

Lead is not in Campbell'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 Campbell water report show?

PurityMap's current record for Campbell holds 31 findings: 1 above a reference, 2 detected within the reference and 28 not detected. Each finding links to its dated public record; a parameter that was never monitored is shown as pending, not as a pass.

Follow this water

Follow Campbell's water

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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Sources and dataAll 31 records and their sourcesEPA UCMR 5 · EPA SDWIS (Lead & Copper Rule)
ContaminantResultBenchmarkStatusSampledSource
Perfluorooctanesulfonic acid (PFOS)6.2 ng/L4.0 ng/L federal MCL (2024)Above a historical reference; current applicability unverified2023-02-16 to 2025-02-11UCMR5 Analytical Results: SAN JOSE WATER (CA4310011)
Lithium10 µg/L10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limitWithin the referenced health-based guidance value2023-02-15 to 2025-02-11UCMR5 Analytical Results: SAN JOSE WATER (CA4310011)
Perfluorohexanesulfonic acid (PFHxS)5.5 ng/L10 ng/L federal MCL (2024)Within a historical reference; current applicability unverified2023-02-16 to 2025-02-11UCMR5 Analytical Results: SAN JOSE WATER (CA4310011)
28 other contaminants tested — none detected
ContaminantResultBenchmarkStatusSampledSource
11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)< 5 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2023-02-16 to 2025-02-11UCMR5 Analytical Results: SAN JOSE WATER (CA4310011)
1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS)< 5 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2023-02-16 to 2025-02-11UCMR5 Analytical Results: SAN JOSE WATER (CA4310011)
1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2023-02-16 to 2025-02-11UCMR5 Analytical Results: SAN JOSE WATER (CA4310011)
1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS)< 5 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2023-02-16 to 2025-02-11UCMR5 Analytical Results: SAN JOSE WATER (CA4310011)
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2023-02-16 to 2025-02-11UCMR5 Analytical Results: SAN JOSE WATER (CA4310011)
9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS)< 2 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2023-02-16 to 2025-02-11UCMR5 Analytical Results: SAN JOSE WATER (CA4310011)
Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals)< 5 ng/L10 ng/L federal MCL (2024)Not detected above the reporting limit2023-02-16 to 2025-02-11UCMR5 Analytical Results: SAN JOSE WATER (CA4310011)
Lead (90th percentile)Non-Detect (ND)15 µg/L federal action levelNot detected above the reporting limit2023–2025 monitoring periodLead & Copper Rule 90th-percentile: SAN JOSE WATER (CA4310011)
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)< 5 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2023-02-15 to 2025-02-11UCMR5 Analytical Results: SAN JOSE WATER (CA4310011)
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)< 6 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2023-02-15 to 2025-02-11UCMR5 Analytical Results: SAN JOSE WATER (CA4310011)
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)< 20 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2023-02-16 to 2025-02-11UCMR5 Analytical Results: SAN JOSE WATER (CA4310011)
Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2023-02-16 to 2025-02-11UCMR5 Analytical Results: SAN JOSE WATER (CA4310011)
Perfluoro-3-methoxypropanoic acid (PFMPA)< 4 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2023-02-16 to 2025-02-11UCMR5 Analytical Results: SAN JOSE WATER (CA4310011)
Perfluoro-4-methoxybutanoic acid (PFMBA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2023-02-16 to 2025-02-11UCMR5 Analytical Results: SAN JOSE WATER (CA4310011)
Perfluorobutanesulfonic acid (PFBS)< 3 ng/L2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limitNot detected above the reporting limit2023-02-16 to 2025-02-11UCMR5 Analytical Results: SAN JOSE WATER (CA4310011)
Perfluorobutanoic acid (PFBA)< 5 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2023-02-16 to 2025-02-11UCMR5 Analytical Results: SAN JOSE WATER (CA4310011)
Perfluorodecanoic acid (PFDA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2023-02-16 to 2025-02-11UCMR5 Analytical Results: SAN JOSE WATER (CA4310011)
Perfluorododecanoic acid (PFDoA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2023-02-16 to 2025-02-11UCMR5 Analytical Results: SAN JOSE WATER (CA4310011)
Perfluoroheptanesulfonic acid (PFHpS)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2023-02-16 to 2025-02-11UCMR5 Analytical Results: SAN JOSE WATER (CA4310011)
Perfluoroheptanoic acid (PFHpA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2023-02-16 to 2025-02-11UCMR5 Analytical Results: SAN JOSE WATER (CA4310011)
Perfluorohexanoic acid (PFHxA)< 3 ng/L400,000 ng/L Michigan EGLE state MCL (strictest US state)Not detected above the reporting limit2023-02-16 to 2025-02-11UCMR5 Analytical Results: SAN JOSE WATER (CA4310011)
Perfluorononanoic acid (PFNA)< 4 ng/L10 ng/L federal MCL (2024)Not detected above the reporting limit2023-02-16 to 2025-02-11UCMR5 Analytical Results: SAN JOSE WATER (CA4310011)
Perfluorooctanoic acid (PFOA)< 4 ng/L4.0 ng/L federal MCL (2024)Not detected above the reporting limit2023-02-16 to 2025-02-11UCMR5 Analytical Results: SAN JOSE WATER (CA4310011)
Perfluoropentanesulfonic acid (PFPeS)< 4 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2023-02-16 to 2025-02-11UCMR5 Analytical Results: SAN JOSE WATER (CA4310011)
Perfluoropentanoic acid (PFPeA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2023-02-16 to 2025-02-11UCMR5 Analytical Results: SAN JOSE WATER (CA4310011)
Perfluorotetradecanoic acid (PFTA)< 8 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2023-02-15 to 2025-02-11UCMR5 Analytical Results: SAN JOSE WATER (CA4310011)
Perfluorotridecanoic acid (PFTrDA)< 7 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2023-02-15 to 2025-02-11UCMR5 Analytical Results: SAN JOSE WATER (CA4310011)
Perfluoroundecanoic acid (PFUnA)< 2 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2023-02-16 to 2025-02-11UCMR5 Analytical Results: SAN JOSE WATER (CA4310011)

Perfluorooctanesulfonic acid (PFOS)

Result
6.2 ng/L
Benchmark
4.0 ng/L federal MCL (2024)
Status
Above a historical reference; current applicability unverified
Sampled
2023-02-16 to 2025-02-11

Lithium

Result
10 µg/L
Benchmark
10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit
Status
Within the referenced health-based guidance value
Sampled
2023-02-15 to 2025-02-11

Perfluorohexanesulfonic acid (PFHxS)

Result
5.5 ng/L
Benchmark
10 ng/L federal MCL (2024)
Status
Within a historical reference; current applicability unverified
Sampled
2023-02-16 to 2025-02-11
28 other 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
Status
Not detected above the reporting limit
Sampled
2023-02-16 to 2025-02-11

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

Result
< 5 ng/L
Benchmark
No federal or state limit; shown for transparency
Status
Not detected above the reporting limit
Sampled
2023-02-16 to 2025-02-11

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

Result
< 3 ng/L
Benchmark
No federal or state limit; shown for transparency
Status
Not detected above the reporting limit
Sampled
2023-02-16 to 2025-02-11

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

Result
< 5 ng/L
Benchmark
No federal or state limit; shown for transparency
Status
Not detected above the reporting limit
Sampled
2023-02-16 to 2025-02-11

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

Result
< 3 ng/L
Benchmark
No federal or state limit; shown for transparency
Status
Not detected above the reporting limit
Sampled
2023-02-16 to 2025-02-11

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

Result
< 2 ng/L
Benchmark
No federal or state limit; shown for transparency
Status
Not detected above the reporting limit
Sampled
2023-02-16 to 2025-02-11

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

Result
< 5 ng/L
Benchmark
10 ng/L federal MCL (2024)
Status
Not detected above the reporting limit
Sampled
2023-02-16 to 2025-02-11

Lead (90th percentile)

Result
Non-Detect (ND)
Benchmark
15 µg/L federal action level
Status
Not detected above the reporting limit
Sampled
2023–2025 monitoring period

N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)

Result
< 5 ng/L
Benchmark
No federal or state limit; shown for transparency
Status
Not detected above the reporting limit
Sampled
2023-02-15 to 2025-02-11

N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)

Result
< 6 ng/L
Benchmark
No federal or state limit; shown for transparency
Status
Not detected above the reporting limit
Sampled
2023-02-15 to 2025-02-11

Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)

Result
< 20 ng/L
Benchmark
No federal or state limit; shown for transparency
Status
Not detected above the reporting limit
Sampled
2023-02-16 to 2025-02-11

Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)

Result
< 3 ng/L
Benchmark
No federal or state limit; shown for transparency
Status
Not detected above the reporting limit
Sampled
2023-02-16 to 2025-02-11

Perfluoro-3-methoxypropanoic acid (PFMPA)

Result
< 4 ng/L
Benchmark
No federal or state limit; shown for transparency
Status
Not detected above the reporting limit
Sampled
2023-02-16 to 2025-02-11

Perfluoro-4-methoxybutanoic acid (PFMBA)

Result
< 3 ng/L
Benchmark
No federal or state limit; shown for transparency
Status
Not detected above the reporting limit
Sampled
2023-02-16 to 2025-02-11

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
Status
Not detected above the reporting limit
Sampled
2023-02-16 to 2025-02-11

Perfluorobutanoic acid (PFBA)

Result
< 5 ng/L
Benchmark
No federal or state limit; shown for transparency
Status
Not detected above the reporting limit
Sampled
2023-02-16 to 2025-02-11

Perfluorodecanoic acid (PFDA)

Result
< 3 ng/L
Benchmark
No federal or state limit; shown for transparency
Status
Not detected above the reporting limit
Sampled
2023-02-16 to 2025-02-11

Perfluorododecanoic acid (PFDoA)

Result
< 3 ng/L
Benchmark
No federal or state limit; shown for transparency
Status
Not detected above the reporting limit
Sampled
2023-02-16 to 2025-02-11

Perfluoroheptanesulfonic acid (PFHpS)

Result
< 3 ng/L
Benchmark
No federal or state limit; shown for transparency
Status
Not detected above the reporting limit
Sampled
2023-02-16 to 2025-02-11

Perfluoroheptanoic acid (PFHpA)

Result
< 3 ng/L
Benchmark
No federal or state limit; shown for transparency
Status
Not detected above the reporting limit
Sampled
2023-02-16 to 2025-02-11

Perfluorohexanoic acid (PFHxA)

Result
< 3 ng/L
Benchmark
400,000 ng/L Michigan EGLE state MCL (strictest US state)
Status
Not detected above the reporting limit
Sampled
2023-02-16 to 2025-02-11

Perfluorononanoic acid (PFNA)

Result
< 4 ng/L
Benchmark
10 ng/L federal MCL (2024)
Status
Not detected above the reporting limit
Sampled
2023-02-16 to 2025-02-11

Perfluorooctanoic acid (PFOA)

Result
< 4 ng/L
Benchmark
4.0 ng/L federal MCL (2024)
Status
Not detected above the reporting limit
Sampled
2023-02-16 to 2025-02-11

Perfluoropentanesulfonic acid (PFPeS)

Result
< 4 ng/L
Benchmark
No federal or state limit; shown for transparency
Status
Not detected above the reporting limit
Sampled
2023-02-16 to 2025-02-11

Perfluoropentanoic acid (PFPeA)

Result
< 3 ng/L
Benchmark
No federal or state limit; shown for transparency
Status
Not detected above the reporting limit
Sampled
2023-02-16 to 2025-02-11

Perfluorotetradecanoic acid (PFTA)

Result
< 8 ng/L
Benchmark
No federal or state limit; shown for transparency
Status
Not detected above the reporting limit
Sampled
2023-02-15 to 2025-02-11

Perfluorotridecanoic acid (PFTrDA)

Result
< 7 ng/L
Benchmark
No federal or state limit; shown for transparency
Status
Not detected above the reporting limit
Sampled
2023-02-15 to 2025-02-11

Perfluoroundecanoic acid (PFUnA)

Result
< 2 ng/L
Benchmark
No federal or state limit; shown for transparency
Status
Not detected above the reporting limit
Sampled
2023-02-16 to 2025-02-11

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: SAN JOSE WATER (CA4310011)

    US EPA

    Published
    2026-01-15
    Newest sample
    2025-02-11
    Findings here
    30
  • State SDWIS Compliance Record

    Lead & Copper Rule 90th-percentile: SAN JOSE WATER (CA4310011)

    US EPA SDWIS

    Published
    2026-07-09
    Newest sample
    2025
    Findings here
    1

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

ZIP codes in Campbell

A ZIP code is a postal area, not a water service area. Your water bill names your supplier.