NORMAN UTILITIES AUTHORITYlikely match
City water report · 2026

Is Norman Tap Water Safe? 2026 Water Quality Report

Short answer: No measured result is above a legal limit; lithium sits above a screening level. Norman Utilities Authority serves 104,868 residents.

Likely match, check your bill

NORMAN UTILITIES AUTHORITY serves Norman

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

Source
Surface water
Lead service lines
13 lead, 960 galvanized, 20,887 unknown

Your water utility

Norman Utilities Authority: contact and record

Every detected result

10 detected results, by distance from their limit

NORMAN UTILITIES AUTHORITY (EPA PWSID OK1020801) delivers surface water to 104,868 residents. This report reflects 29 individual PFAS result(s) from the source UCMR5 observations and the latest Lead & Copper Rule 90th-percentile result.

  • LithiumEPA UCMR 5 · 2023
    10 µg/L EPA health reference level (screening, not a legal limit)
    17.7µg/L
    Above screening
  • ArsenicUtility CCR · 2025
    0.010 mg/L
    0.01mg/L
    Within reference
  • FluorideUtility CCR · 2025
    4.0 mg/L
    0.67mg/L
    Within reference
  • Haloacetic acids (HAA5)Utility CCR · 2025
    60 ppb federal MCL
    9ppb
    Within reference
  • Total trihalomethanes (TTHM)Utility CCR · 2025
    80 ppb federal MCL
    12ppb
    Within reference
  • CopperUtility CCR · 2025
    1.3 mg/L (action level)
    0.14mg/L
    Within reference
  • NitrateUtility CCR · 2025
    10 mg/L
    0.378mg/L
    Within reference
  • Lead (90th percentile)EPA SDWIS (Lead & Copper Rule) · 2025
    15 µg/L federal action level
    0.55µg/L
    Within reference
  • 2,000 ng/L EPA health advisory (screening, not a legal limit)
    3ng/L
    Within reference
  • No federal or state limit; shown for transparency
    7.5ng/L
    Detected · no limit
27 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
  • PFHpA
  • PFHpS
  • PFHxA
  • PFHxS
  • PFMBA
  • PFMPA
  • PFNA
  • PFOA
  • PFOS
  • PFPeA
  • PFPeS
  • PFTA
  • PFTrDA
  • PFUnA

Coverage by group

37 results on record
  • PFAS (forever chemicals)2 detected · 27 not detected
  • Metals & lead3 detected
  • Disinfection by-products2 detected
  • Other1 above · 2 detected
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.

Health-based violations, last 10 years

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

Filings 2016–2025
  • Lead and copper rule revisions

Resolved

  1. Lead and copper rule revisionsTT

    to Resolved

    EPA status: ResolvedSDWIS ID 66937

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

    Safe Home DIY Lead in Drinking Water Combo Test Kit

    Safe Home (EnviroTestKits)

    Lead, read as one of three ranges: 0–4, 5–15 or 15+ ppb

    • Turnaround: 5 minutes

    What it can't tell you: It shows a lead range, not an exact level, and tests nothing else unless you pay extra for the optional lab test.

  • 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.

Commercial

Certified for a concern found here

Each card names which Norman 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 3-Stage Max Flow Under-Sink Filter (AQ-6300M)

  • Lead: eligible, evidence match
  • Not established: Lithium, Perfluorobutanesulfonic acid (PFBS), Perfluorobutanoic acid (PFBA)
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
Countertop System

Aquasana Clean Water Machine Countertop Filter (AQ-CWM2)

  • Lead: eligible, evidence match
  • Not established: Lithium, Perfluorobutanesulfonic acid (PFBS), Perfluorobutanoic acid (PFBA)
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
See all 9 products certified for a Norman concern →
Countertop System

AquaTru Classic Countertop Reverse-Osmosis Purifier (AT2000)

  • Lead: eligible, evidence match
  • Not established: Lithium, Perfluorobutanesulfonic acid (PFBS), Perfluorobutanoic acid (PFBA)
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
Water Pitcher

Culligan ZeroWater 10-Cup Pitcher (ZEROP10)

  • Lead: eligible, evidence match
  • Not established: Lithium, Perfluorobutanesulfonic acid (PFBS), Perfluorobutanoic acid (PFBA)
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
Faucet Attachment

Faucet-Mount Filter

  • Lead: eligible, evidence match
  • Not established: Lithium, Perfluorobutanesulfonic acid (PFBS), Perfluorobutanoic acid (PFBA)
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

Under-Sink Carbon Block Filter

  • Lead: eligible, evidence match
  • Not established: Lithium, Perfluorobutanesulfonic acid (PFBS), Perfluorobutanoic acid (PFBA)
Not suitable for (4)
  • 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
Under-Sink Filter

Under-Sink Reverse-Osmosis System

  • Lead: eligible, evidence match
  • Not established: Lithium, Perfluorobutanesulfonic acid (PFBS), Perfluorobutanoic acid (PFBA)
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 G3P600 Tankless Reverse-Osmosis System

  • Lead: eligible, evidence match
  • Not established: Lithium, Perfluorobutanesulfonic acid (PFBS), Perfluorobutanoic acid (PFBA)
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)

  • Lead: eligible, evidence match
  • Not established: Lithium, Perfluorobutanesulfonic acid (PFBS), Perfluorobutanoic acid (PFBA)
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 Norman tap water safe to drink?

PurityMap does not give a safe/unsafe verdict; it shows what the public records measured. For Norman, PFAS were detected below their limits, and PFBA 7.5 ng/L with no federal or state limit; the lead 90th-percentile result was 0.55 µg/L against the 15 µg/L action level. NORMAN UTILITIES AUTHORITY (PWSID OK1020801) has a Purity Score of 84/100 (confidence: high), 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 Norman?

NORMAN UTILITIES AUTHORITY (PWS ID OK1020801) is the public water system on record for Norman, Oklahoma, serving about 104,868 people. Confirm the utility on your water bill before acting on a specific finding.

Where does Norman get its drinking water?

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

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

In EPA's UCMR 5 testing (2023-10-03 to 2025-03-31), PFBS was detected at 3 ng/L, below the 2,000 ng/L EPA health advisory. PFBA (7.5 ng/L) was also detected; it has no federal or state limit.

Is there lead in Norman's tap water?

NORMAN UTILITIES AUTHORITY's most recent lead 90th-percentile result (2025) was 0.55 µg/L, below the 15 µg/L action level. That figure comes from sampled homes; lead usually enters from a building's own pipes and fixtures, so only a test at your tap tells you what you drink.

What does the latest Norman water report show?

PurityMap's current record for Norman holds 37 findings: 1 above a reference, 8 detected within the reference, 1 detected with no limit and 27 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 Norman'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 37 records and their sourcesEPA UCMR 5 · EPA SDWIS (Lead & Copper Rule) · Utility CCR
ContaminantResultBenchmarkSampledSource
Lithium17.7 µg/L10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit2023-10-03 to 2025-03-31UCMR5 Analytical Results: NORMAN UTILITIES AUTHORITY (OK1020801)
Arsenic0.0097 mg/L0.010 mg/L2025Norman Utilities Authority 2025 Consumer Confidence Report (CCR)
Fluoride0.67 mg/L4.0 mg/L2025Norman Utilities Authority 2025 Consumer Confidence Report (CCR)
Haloacetic acids (HAA5)9 ppb60 ppb federal MCL2025Norman Utilities Authority 2025 Consumer Confidence Report (CCR)
Total trihalomethanes (TTHM)12 ppb80 ppb federal MCL2025Norman Utilities Authority 2025 Consumer Confidence Report (CCR)
Copper0.14 mg/L1.3 mg/L (action level)2025Norman Utilities Authority 2025 Consumer Confidence Report (CCR)
Nitrate0.378 mg/L10 mg/L2025Norman Utilities Authority 2025 Consumer Confidence Report (CCR)
Lead (90th percentile)0.55 µg/L15 µg/L federal action level2025–2025 monitoring periodLead & Copper Rule 90th-percentile: NORMAN UTILITIES AUTHORITY (OK1020801)
Perfluorobutanesulfonic acid (PFBS)3 ng/L2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit2023-10-03 to 2025-03-31UCMR5 Analytical Results: NORMAN UTILITIES AUTHORITY (OK1020801)
Perfluorobutanoic acid (PFBA)7.5 ng/LNo federal or state limit; shown for transparency2023-10-03 to 2025-03-31UCMR5 Analytical Results: NORMAN UTILITIES AUTHORITY (OK1020801)
27 other PFAS tested — none detected
ContaminantResultBenchmarkSampledSource
11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)< 5 ng/LNo federal or state limit; shown for transparency2023-10-03 to 2025-03-31UCMR5 Analytical Results: NORMAN UTILITIES AUTHORITY (OK1020801)
1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS)< 5 ng/LNo federal or state limit; shown for transparency2023-10-03 to 2025-03-31UCMR5 Analytical Results: NORMAN UTILITIES AUTHORITY (OK1020801)
1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS)< 3 ng/LNo federal or state limit; shown for transparency2023-10-03 to 2025-03-31UCMR5 Analytical Results: NORMAN UTILITIES AUTHORITY (OK1020801)
1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS)< 5 ng/LNo federal or state limit; shown for transparency2023-10-03 to 2025-03-31UCMR5 Analytical Results: NORMAN UTILITIES AUTHORITY (OK1020801)
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)< 3 ng/LNo federal or state limit; shown for transparency2023-10-03 to 2025-03-31UCMR5 Analytical Results: NORMAN UTILITIES AUTHORITY (OK1020801)
9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS)< 2 ng/LNo federal or state limit; shown for transparency2023-10-03 to 2025-03-31UCMR5 Analytical Results: NORMAN UTILITIES AUTHORITY (OK1020801)
Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals)< 5 ng/L10 ng/L federal MCL (2024)2023-10-03 to 2025-03-31UCMR5 Analytical Results: NORMAN UTILITIES AUTHORITY (OK1020801)
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)< 5 ng/LNo federal or state limit; shown for transparency2023-10-03 to 2025-03-31UCMR5 Analytical Results: NORMAN UTILITIES AUTHORITY (OK1020801)
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)< 6 ng/LNo federal or state limit; shown for transparency2023-10-03 to 2025-03-31UCMR5 Analytical Results: NORMAN UTILITIES AUTHORITY (OK1020801)
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)< 20 ng/LNo federal or state limit; shown for transparency2023-10-03 to 2025-03-31UCMR5 Analytical Results: NORMAN UTILITIES AUTHORITY (OK1020801)
Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)< 3 ng/LNo federal or state limit; shown for transparency2023-10-03 to 2025-03-31UCMR5 Analytical Results: NORMAN UTILITIES AUTHORITY (OK1020801)
Perfluoro-3-methoxypropanoic acid (PFMPA)< 4 ng/LNo federal or state limit; shown for transparency2023-10-03 to 2025-03-31UCMR5 Analytical Results: NORMAN UTILITIES AUTHORITY (OK1020801)
Perfluoro-4-methoxybutanoic acid (PFMBA)< 3 ng/LNo federal or state limit; shown for transparency2023-10-03 to 2025-03-31UCMR5 Analytical Results: NORMAN UTILITIES AUTHORITY (OK1020801)
Perfluorodecanoic acid (PFDA)< 3 ng/LNo federal or state limit; shown for transparency2023-10-03 to 2025-03-31UCMR5 Analytical Results: NORMAN UTILITIES AUTHORITY (OK1020801)
Perfluorododecanoic acid (PFDoA)< 3 ng/LNo federal or state limit; shown for transparency2023-10-03 to 2025-03-31UCMR5 Analytical Results: NORMAN UTILITIES AUTHORITY (OK1020801)
Perfluoroheptanesulfonic acid (PFHpS)< 3 ng/LNo federal or state limit; shown for transparency2023-10-03 to 2025-03-31UCMR5 Analytical Results: NORMAN UTILITIES AUTHORITY (OK1020801)
Perfluoroheptanoic acid (PFHpA)< 3 ng/LNo federal or state limit; shown for transparency2023-10-03 to 2025-03-31UCMR5 Analytical Results: NORMAN UTILITIES AUTHORITY (OK1020801)
Perfluorohexanesulfonic acid (PFHxS)< 3 ng/L10 ng/L federal MCL (2024)2023-10-03 to 2025-03-31UCMR5 Analytical Results: NORMAN UTILITIES AUTHORITY (OK1020801)
Perfluorohexanoic acid (PFHxA)< 3 ng/L400,000 ng/L Michigan EGLE state MCL (strictest US state)2023-10-03 to 2025-03-31UCMR5 Analytical Results: NORMAN UTILITIES AUTHORITY (OK1020801)
Perfluorononanoic acid (PFNA)< 4 ng/L10 ng/L federal MCL (2024)2023-10-03 to 2025-03-31UCMR5 Analytical Results: NORMAN UTILITIES AUTHORITY (OK1020801)
Perfluorooctanesulfonic acid (PFOS)< 4 ng/L4.0 ng/L federal MCL (2024)2023-10-03 to 2025-03-31UCMR5 Analytical Results: NORMAN UTILITIES AUTHORITY (OK1020801)
Perfluorooctanoic acid (PFOA)< 4 ng/L4.0 ng/L federal MCL (2024)2023-10-03 to 2025-03-31UCMR5 Analytical Results: NORMAN UTILITIES AUTHORITY (OK1020801)
Perfluoropentanesulfonic acid (PFPeS)< 4 ng/LNo federal or state limit; shown for transparency2023-10-03 to 2025-03-31UCMR5 Analytical Results: NORMAN UTILITIES AUTHORITY (OK1020801)
Perfluoropentanoic acid (PFPeA)< 3 ng/LNo federal or state limit; shown for transparency2023-10-03 to 2025-03-31UCMR5 Analytical Results: NORMAN UTILITIES AUTHORITY (OK1020801)
Perfluorotetradecanoic acid (PFTA)< 8 ng/LNo federal or state limit; shown for transparency2023-10-03 to 2025-03-31UCMR5 Analytical Results: NORMAN UTILITIES AUTHORITY (OK1020801)
Perfluorotridecanoic acid (PFTrDA)< 7 ng/LNo federal or state limit; shown for transparency2023-10-03 to 2025-03-31UCMR5 Analytical Results: NORMAN UTILITIES AUTHORITY (OK1020801)
Perfluoroundecanoic acid (PFUnA)< 2 ng/LNo federal or state limit; shown for transparency2023-10-03 to 2025-03-31UCMR5 Analytical Results: NORMAN UTILITIES AUTHORITY (OK1020801)

Lithium

Result
17.7 µg/L
Benchmark
10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit
Sampled
2023-10-03 to 2025-03-31

Arsenic

Result
0.0097 mg/L
Benchmark
0.010 mg/L
Sampled
2025

Fluoride

Result
0.67 mg/L
Benchmark
4.0 mg/L
Sampled
2025

Haloacetic acids (HAA5)

Result
9 ppb
Benchmark
60 ppb federal MCL
Sampled
2025

Total trihalomethanes (TTHM)

Result
12 ppb
Benchmark
80 ppb federal MCL
Sampled
2025

Copper

Result
0.14 mg/L
Benchmark
1.3 mg/L (action level)
Sampled
2025

Nitrate

Result
0.378 mg/L
Benchmark
10 mg/L
Sampled
2025

Lead (90th percentile)

Result
0.55 µg/L
Benchmark
15 µg/L federal action level
Sampled
2025–2025 monitoring period

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
2023-10-03 to 2025-03-31

Perfluorobutanoic acid (PFBA)

Result
7.5 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2023-10-03 to 2025-03-31
27 other PFAS 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
2023-10-03 to 2025-03-31

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

Result
< 5 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2023-10-03 to 2025-03-31

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

Result
< 3 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2023-10-03 to 2025-03-31

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

Result
< 5 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2023-10-03 to 2025-03-31

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

Result
< 3 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2023-10-03 to 2025-03-31

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

Result
< 2 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2023-10-03 to 2025-03-31

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

Result
< 5 ng/L
Benchmark
10 ng/L federal MCL (2024)
Sampled
2023-10-03 to 2025-03-31

N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)

Result
< 5 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2023-10-03 to 2025-03-31

N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)

Result
< 6 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2023-10-03 to 2025-03-31

Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)

Result
< 20 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2023-10-03 to 2025-03-31

Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)

Result
< 3 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2023-10-03 to 2025-03-31

Perfluoro-3-methoxypropanoic acid (PFMPA)

Result
< 4 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2023-10-03 to 2025-03-31

Perfluoro-4-methoxybutanoic acid (PFMBA)

Result
< 3 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2023-10-03 to 2025-03-31

Perfluorodecanoic acid (PFDA)

Result
< 3 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2023-10-03 to 2025-03-31

Perfluorododecanoic acid (PFDoA)

Result
< 3 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2023-10-03 to 2025-03-31

Perfluoroheptanesulfonic acid (PFHpS)

Result
< 3 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2023-10-03 to 2025-03-31

Perfluoroheptanoic acid (PFHpA)

Result
< 3 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2023-10-03 to 2025-03-31

Perfluorohexanesulfonic acid (PFHxS)

Result
< 3 ng/L
Benchmark
10 ng/L federal MCL (2024)
Sampled
2023-10-03 to 2025-03-31

Perfluorohexanoic acid (PFHxA)

Result
< 3 ng/L
Benchmark
400,000 ng/L Michigan EGLE state MCL (strictest US state)
Sampled
2023-10-03 to 2025-03-31

Perfluorononanoic acid (PFNA)

Result
< 4 ng/L
Benchmark
10 ng/L federal MCL (2024)
Sampled
2023-10-03 to 2025-03-31

Perfluorooctanesulfonic acid (PFOS)

Result
< 4 ng/L
Benchmark
4.0 ng/L federal MCL (2024)
Sampled
2023-10-03 to 2025-03-31

Perfluorooctanoic acid (PFOA)

Result
< 4 ng/L
Benchmark
4.0 ng/L federal MCL (2024)
Sampled
2023-10-03 to 2025-03-31

Perfluoropentanesulfonic acid (PFPeS)

Result
< 4 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2023-10-03 to 2025-03-31

Perfluoropentanoic acid (PFPeA)

Result
< 3 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2023-10-03 to 2025-03-31

Perfluorotetradecanoic acid (PFTA)

Result
< 8 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2023-10-03 to 2025-03-31

Perfluorotridecanoic acid (PFTrDA)

Result
< 7 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2023-10-03 to 2025-03-31

Perfluoroundecanoic acid (PFUnA)

Result
< 2 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2023-10-03 to 2025-03-31

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: NORMAN UTILITIES AUTHORITY (OK1020801)

    US EPA

    Published
    2026-01-15
    Newest sample
    2025-03-31
    Findings here
    30
  • State SDWIS Compliance Record

    Lead & Copper Rule 90th-percentile: NORMAN UTILITIES AUTHORITY (OK1020801)

    US EPA SDWIS

    Published
    2026-07-09
    Newest sample
    2025
    Findings here
    1
  • Consumer Confidence Report (CCR)

    Norman Utilities Authority 2025 Consumer Confidence Report (CCR)

    Norman Utilities Authority

    Published
    2025-01-01
    Newest sample
    2025
    Findings here
    6

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