COMMERCE-CITY, WATER DEPT.likely match
City water report · 2026

Is Commerce Tap Water Safe? 2026 Water Quality Report

Short answer: PFOA is above its federal limit (a 2024 limit that water systems have until at least 2029 to meet); lithium sits above a screening level. Commerce-City, Water Dept. serves 3,598 residents.

Likely match, check your bill

COMMERCE-CITY, WATER DEPT. serves Commerce

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

Source
Surface water
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.

PFOA

Perfluorooctanoic acid

2.3× the limit

9.3ng/L

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

EPA UCMR 5 · sampled 2024Evidence

Coverage by group

31 results on record
  • PFAS (forever chemicals)1 above · 5 detected · 23 not detected
  • Metals & lead1 not detected
  • Disinfection by-productsNot monitored
  • Other1 above
Every detected result

7 detected results, by distance from their limit

COMMERCE-CITY, WATER DEPT. (EPA PWSID CA1910050) delivers surface water to 3,598 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.

24 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
  • PFDA
  • PFDoA
  • PFEESA
  • PFHpS
  • PFHxS
  • PFMBA
  • PFMPA
  • PFNA
  • PFOS
  • PFPeS
  • PFTA
  • PFTrDA
  • PFUnA
  • Lead (90th percentile)
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.

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 →

Commercial

Certified for a concern found here

Each card names which Commerce 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)

  • PFOA: eligible, evidence match
  • Not established: Lithium, Perfluorobutanesulfonic acid (PFBS), Perfluorohexanoic acid (PFHxA) and 3 more
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)

  • PFOA: eligible, evidence match
  • Not established: Lithium, Perfluorobutanesulfonic acid (PFBS), Perfluorohexanoic acid (PFHxA) and 3 more
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 Commerce concern →
Countertop System

Aquasana Clean Water Machine Countertop Filter (AQ-CWM2)

  • PFOA: eligible, evidence match
  • Not established: Lithium, Perfluorobutanesulfonic acid (PFBS), Perfluorohexanoic acid (PFHxA) and 3 more
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

  • PFOA: eligible, evidence match
  • Not established: Lithium, Perfluorobutanesulfonic acid (PFBS), Perfluorohexanoic acid (PFHxA) and 3 more
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)

  • PFOA: eligible, evidence match
  • Not established: Lithium, Perfluorobutanesulfonic acid (PFBS), Perfluorohexanoic acid (PFHxA) and 3 more
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)

  • PFOA: eligible, evidence match
  • Not established: Lithium, Perfluorobutanesulfonic acid (PFBS), Perfluorohexanoic acid (PFHxA) and 3 more
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

  • PFOA: eligible, evidence match
  • Not established: Lithium, Perfluorobutanesulfonic acid (PFBS), Perfluorohexanoic acid (PFHxA) and 3 more
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

  • PFOA: eligible, evidence match
  • Not established: Lithium, Perfluorobutanesulfonic acid (PFBS), Perfluorohexanoic acid (PFHxA) and 3 more
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)

  • PFOA: eligible, evidence match
  • Not established: Lithium, Perfluorobutanesulfonic acid (PFBS), Perfluorohexanoic acid (PFHxA) and 3 more
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 Commerce tap water safe to drink?

PurityMap does not give a safe/unsafe verdict; it shows what the public records measured. For Commerce, PFOA 9.3 ng/L was measured above the 4 ng/L federal limit in EPA's 2024 testing. COMMERCE-CITY, WATER DEPT. (PWSID CA1910050) has a Purity Score of 57/100 (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 Commerce?

COMMERCE-CITY, WATER DEPT. (PWS ID CA1910050) is the public water system on record for Commerce, California, serving about 3,598 people. Confirm the utility on your water bill before acting on a specific finding.

Where does Commerce get its drinking water?

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

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

Yes. In EPA's UCMR 5 testing (2024-02-21 to 2024-11-06), PFOA was measured at 9.3 ng/L against a 4 ng/L federal limit. PFBS (9.7 ng/L, below the 2,000 ng/L EPA health advisory) and PFHxA (13.6 ng/L, below the 400,000 ng/L state limit) were also detected. PFBA (7.5 ng/L), PFHpA (5.1 ng/L) and PFPeA (17.4 ng/L) were also detected; they have no federal or state limit. Reverse osmosis and filters certified to NSF/ANSI 53 for PFOA/PFOS reduce them at the tap.

Is there lead in Commerce's tap water?

Lead is not in Commerce'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 Commerce water report show?

PurityMap's current record for Commerce holds 31 findings: 2 above a reference, 2 detected within the reference, 3 detected with no limit and 24 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

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Sources and dataAll 31 records and their sourcesEPA UCMR 5 · EPA SDWIS (Lead & Copper Rule)
ContaminantResultBenchmarkStatusSampledSource
Lithium65.7 µg/L10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limitAbove the referenced health-based guidance value2024-02-21 to 2024-11-06UCMR5 Analytical Results: COMMERCE-CITY, WATER DEPT. (CA1910050)
Perfluorooctanoic acid (PFOA)9.3 ng/L4.0 ng/L federal MCL (2024)Above a historical reference; current applicability unverified2024-02-21 to 2024-11-06UCMR5 Analytical Results: COMMERCE-CITY, WATER DEPT. (CA1910050)
Perfluorobutanesulfonic acid (PFBS)9.7 ng/L2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limitWithin the referenced health-based guidance value2024-02-21 to 2024-11-06UCMR5 Analytical Results: COMMERCE-CITY, WATER DEPT. (CA1910050)
Perfluorohexanoic acid (PFHxA)13.6 ng/L400,000 ng/L Michigan EGLE state MCL (strictest US state)Within a historical reference; current applicability unverified2024-02-21 to 2024-11-06UCMR5 Analytical Results: COMMERCE-CITY, WATER DEPT. (CA1910050)
Perfluorobutanoic acid (PFBA)7.5 ng/LNo federal or state limit; shown for transparencyDetected, no limit2024-02-21 to 2024-11-06UCMR5 Analytical Results: COMMERCE-CITY, WATER DEPT. (CA1910050)
Perfluoroheptanoic acid (PFHpA)5.1 ng/LNo federal or state limit; shown for transparencyDetected, no limit2024-02-21 to 2024-11-06UCMR5 Analytical Results: COMMERCE-CITY, WATER DEPT. (CA1910050)
Perfluoropentanoic acid (PFPeA)17.4 ng/LNo federal or state limit; shown for transparencyDetected, no limit2024-02-21 to 2024-11-06UCMR5 Analytical Results: COMMERCE-CITY, WATER DEPT. (CA1910050)
24 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 limit2024-02-21 to 2024-11-06UCMR5 Analytical Results: COMMERCE-CITY, WATER DEPT. (CA1910050)
1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS)< 5 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-02-21 to 2024-11-06UCMR5 Analytical Results: COMMERCE-CITY, WATER DEPT. (CA1910050)
1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-02-21 to 2024-11-06UCMR5 Analytical Results: COMMERCE-CITY, WATER DEPT. (CA1910050)
1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS)< 5 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-02-21 to 2024-11-06UCMR5 Analytical Results: COMMERCE-CITY, WATER DEPT. (CA1910050)
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-02-21 to 2024-11-06UCMR5 Analytical Results: COMMERCE-CITY, WATER DEPT. (CA1910050)
9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS)< 2 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-02-21 to 2024-11-06UCMR5 Analytical Results: COMMERCE-CITY, WATER DEPT. (CA1910050)
Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals)< 5 ng/L10 ng/L federal MCL (2024)Not detected above the reporting limit2024-02-21 to 2024-11-06UCMR5 Analytical Results: COMMERCE-CITY, WATER DEPT. (CA1910050)
Lead (90th percentile)Non-Detect (ND)15 µg/L federal action levelNot detected above the reporting limit2024–2026 monitoring period (still open)Lead & Copper Rule 90th-percentile: COMMERCE-CITY, WATER DEPT. (CA1910050)
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)< 5 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-02-21 to 2024-11-06UCMR5 Analytical Results: COMMERCE-CITY, WATER DEPT. (CA1910050)
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)< 6 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-02-21 to 2024-11-06UCMR5 Analytical Results: COMMERCE-CITY, WATER DEPT. (CA1910050)
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)< 20 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-02-21 to 2024-11-06UCMR5 Analytical Results: COMMERCE-CITY, WATER DEPT. (CA1910050)
Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-02-21 to 2024-11-06UCMR5 Analytical Results: COMMERCE-CITY, WATER DEPT. (CA1910050)
Perfluoro-3-methoxypropanoic acid (PFMPA)< 4 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-02-21 to 2024-11-06UCMR5 Analytical Results: COMMERCE-CITY, WATER DEPT. (CA1910050)
Perfluoro-4-methoxybutanoic acid (PFMBA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-02-21 to 2024-11-06UCMR5 Analytical Results: COMMERCE-CITY, WATER DEPT. (CA1910050)
Perfluorodecanoic acid (PFDA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-02-21 to 2024-11-06UCMR5 Analytical Results: COMMERCE-CITY, WATER DEPT. (CA1910050)
Perfluorododecanoic acid (PFDoA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-02-21 to 2024-11-06UCMR5 Analytical Results: COMMERCE-CITY, WATER DEPT. (CA1910050)
Perfluoroheptanesulfonic acid (PFHpS)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-02-21 to 2024-11-06UCMR5 Analytical Results: COMMERCE-CITY, WATER DEPT. (CA1910050)
Perfluorohexanesulfonic acid (PFHxS)< 3 ng/L10 ng/L federal MCL (2024)Not detected above the reporting limit2024-02-21 to 2024-11-06UCMR5 Analytical Results: COMMERCE-CITY, WATER DEPT. (CA1910050)
Perfluorononanoic acid (PFNA)< 4 ng/L10 ng/L federal MCL (2024)Not detected above the reporting limit2024-02-21 to 2024-11-06UCMR5 Analytical Results: COMMERCE-CITY, WATER DEPT. (CA1910050)
Perfluorooctanesulfonic acid (PFOS)< 4 ng/L4.0 ng/L federal MCL (2024)Not detected above the reporting limit2024-02-21 to 2024-11-06UCMR5 Analytical Results: COMMERCE-CITY, WATER DEPT. (CA1910050)
Perfluoropentanesulfonic acid (PFPeS)< 4 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-02-21 to 2024-11-06UCMR5 Analytical Results: COMMERCE-CITY, WATER DEPT. (CA1910050)
Perfluorotetradecanoic acid (PFTA)< 8 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-02-21 to 2024-11-06UCMR5 Analytical Results: COMMERCE-CITY, WATER DEPT. (CA1910050)
Perfluorotridecanoic acid (PFTrDA)< 7 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-02-21 to 2024-11-06UCMR5 Analytical Results: COMMERCE-CITY, WATER DEPT. (CA1910050)
Perfluoroundecanoic acid (PFUnA)< 2 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-02-21 to 2024-11-06UCMR5 Analytical Results: COMMERCE-CITY, WATER DEPT. (CA1910050)

Lithium

Result
65.7 µg/L
Benchmark
10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit
Status
Above the referenced health-based guidance value
Sampled
2024-02-21 to 2024-11-06

Perfluorooctanoic acid (PFOA)

Result
9.3 ng/L
Benchmark
4.0 ng/L federal MCL (2024)
Status
Above a historical reference; current applicability unverified
Sampled
2024-02-21 to 2024-11-06

Perfluorobutanesulfonic acid (PFBS)

Result
9.7 ng/L
Benchmark
2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit
Status
Within the referenced health-based guidance value
Sampled
2024-02-21 to 2024-11-06

Perfluorohexanoic acid (PFHxA)

Result
13.6 ng/L
Benchmark
400,000 ng/L Michigan EGLE state MCL (strictest US state)
Status
Within a historical reference; current applicability unverified
Sampled
2024-02-21 to 2024-11-06

Perfluorobutanoic acid (PFBA)

Result
7.5 ng/L
Benchmark
No federal or state limit; shown for transparency
Status
Detected, no limit
Sampled
2024-02-21 to 2024-11-06

Perfluoroheptanoic acid (PFHpA)

Result
5.1 ng/L
Benchmark
No federal or state limit; shown for transparency
Status
Detected, no limit
Sampled
2024-02-21 to 2024-11-06

Perfluoropentanoic acid (PFPeA)

Result
17.4 ng/L
Benchmark
No federal or state limit; shown for transparency
Status
Detected, no limit
Sampled
2024-02-21 to 2024-11-06
24 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
2024-02-21 to 2024-11-06

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
2024-02-21 to 2024-11-06

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
2024-02-21 to 2024-11-06

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
2024-02-21 to 2024-11-06

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
2024-02-21 to 2024-11-06

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
2024-02-21 to 2024-11-06

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
2024-02-21 to 2024-11-06

Lead (90th percentile)

Result
Non-Detect (ND)
Benchmark
15 µg/L federal action level
Status
Not detected above the reporting limit
Sampled
2024–2026 monitoring period (still open)

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
2024-02-21 to 2024-11-06

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
2024-02-21 to 2024-11-06

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
2024-02-21 to 2024-11-06

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
2024-02-21 to 2024-11-06

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
2024-02-21 to 2024-11-06

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
2024-02-21 to 2024-11-06

Perfluorodecanoic acid (PFDA)

Result
< 3 ng/L
Benchmark
No federal or state limit; shown for transparency
Status
Not detected above the reporting limit
Sampled
2024-02-21 to 2024-11-06

Perfluorododecanoic acid (PFDoA)

Result
< 3 ng/L
Benchmark
No federal or state limit; shown for transparency
Status
Not detected above the reporting limit
Sampled
2024-02-21 to 2024-11-06

Perfluoroheptanesulfonic acid (PFHpS)

Result
< 3 ng/L
Benchmark
No federal or state limit; shown for transparency
Status
Not detected above the reporting limit
Sampled
2024-02-21 to 2024-11-06

Perfluorohexanesulfonic acid (PFHxS)

Result
< 3 ng/L
Benchmark
10 ng/L federal MCL (2024)
Status
Not detected above the reporting limit
Sampled
2024-02-21 to 2024-11-06

Perfluorononanoic acid (PFNA)

Result
< 4 ng/L
Benchmark
10 ng/L federal MCL (2024)
Status
Not detected above the reporting limit
Sampled
2024-02-21 to 2024-11-06

Perfluorooctanesulfonic acid (PFOS)

Result
< 4 ng/L
Benchmark
4.0 ng/L federal MCL (2024)
Status
Not detected above the reporting limit
Sampled
2024-02-21 to 2024-11-06

Perfluoropentanesulfonic acid (PFPeS)

Result
< 4 ng/L
Benchmark
No federal or state limit; shown for transparency
Status
Not detected above the reporting limit
Sampled
2024-02-21 to 2024-11-06

Perfluorotetradecanoic acid (PFTA)

Result
< 8 ng/L
Benchmark
No federal or state limit; shown for transparency
Status
Not detected above the reporting limit
Sampled
2024-02-21 to 2024-11-06

Perfluorotridecanoic acid (PFTrDA)

Result
< 7 ng/L
Benchmark
No federal or state limit; shown for transparency
Status
Not detected above the reporting limit
Sampled
2024-02-21 to 2024-11-06

Perfluoroundecanoic acid (PFUnA)

Result
< 2 ng/L
Benchmark
No federal or state limit; shown for transparency
Status
Not detected above the reporting limit
Sampled
2024-02-21 to 2024-11-06

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: COMMERCE-CITY, WATER DEPT. (CA1910050)

    US EPA

    Published
    2026-01-15
    Newest sample
    2024-11-06
    Findings here
    30
  • State SDWIS Compliance Record

    Lead & Copper Rule 90th-percentile: COMMERCE-CITY, WATER DEPT. (CA1910050)

    US EPA SDWIS

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

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