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DURHAM, CITY OFlisted match
City water report · 2026

Is Durham Tap Water Safe? 2026 Water Quality Report

Short answer: Two PFAS, PFOA and PFOS, are above their federal limits (2024 limits that water systems have until at least 2029 to meet); 1 more is detected with no federal limit, and everything else measured is within its reference or not detected. Durham, City of serves 333,490 residents.

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Listed match

DURHAM, CITY OF serves Durham

EPA lists this system for the city. Your water bill or annual water quality report names your actual supplier.

Source
Surface water
Disinfectant
chloramine
Lead service lines
0 lead, 37 galvanized, 54,372 unknown

Source: EPA SDWIS 2026Q2.

  • DURHAM, CITY OFThis report
    NC0332010 · 333,490 served

Your water utility

City of Durham: contact and record

What stands out

Two PFAS above the 2024 federal limit

Each 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

1.4× the limit

5.8ng/L

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

EPA UCMR 5 · sampled 2023Evidence
PFOA

Perfluorooctanoic acid

1× the limit

4.1ng/L

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

EPA UCMR 5 · sampled 2023Evidence

Coverage by group

36 results on record
  • PFAS (forever chemicals)2 above · 2 detected · 25 not detected
  • Metals & lead1 detected · 1 not detected
  • Disinfection by-products2 detected
  • Other2 detected · 1 not detected
Every detected result

9 detected results, by distance from their limit

DURHAM, CITY OF (EPA PWSID NC0332010) delivers surface water to 333,490 residents. This report reflects 29 individual PFAS result(s) from the source UCMR5 observations and the latest Lead & Copper Rule 90th-percentile result. The utility's 2024 CCR reports chloramine disinfection.

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
  • PFPeA
  • PFPeS
  • PFTA
  • PFTrDA
  • PFUnA
  • Lithium
  • 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.

What you can do

Test first, then treat what was found

  1. 01 · TestTest your own tap

    Plumbing inside a home can add lead that the system record can't show. A tap test tells you what reaches your glass.

    Certified lab
    How to test your tap →
  2. 02 · Treat PFASReverse osmosis, or carbon certified for PFAS

    PFOS 5.8 ng/L, above the 4 ng/L limit (+3 more PFAS detected)

    NSF/ANSI 58 or 53, with PFOA/PFOS/PFBS/PFBA named on the listing
    Treatment for PFAS →
  3. 03 · LeadLead-certified carbon filter, or reverse osmosis

    37 galvanized lines to replace

    NSF/ANSI 53 (lead)
    Treatment for Lead →

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

    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.

    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

    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
Commercial

Certified for a concern found here

Each card names which Durham 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)

  • PFOA: eligible, evidence match
  • PFOS: eligible, evidence match
  • Lead: eligible, evidence match
  • Not established: 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
See the evidenceCheck price on Amazon
Countertop System

Aquasana Clean Water Machine Countertop Filter (AQ-CWM2)

  • PFOA: eligible, evidence match
  • PFOS: eligible, evidence match
  • Lead: eligible, evidence match
  • Not established: 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 the evidenceCheck price on Amazon
See all 9 products certified for a Durham concern →
Countertop System

AquaTru Classic Countertop Reverse-Osmosis Purifier (AT2000)

  • PFOA: eligible, evidence match
  • PFOS: eligible, evidence match
  • Lead: eligible, evidence match
  • Not established: 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 the evidenceCheck price on Amazon
Under-Sink Filter

Under-Sink Reverse-Osmosis System

  • PFOA: eligible, evidence match
  • PFOS: eligible, evidence match
  • Lead: eligible, evidence match
  • Not established: 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
See the evidenceCheck price on Amazon
Under-Sink Filter

Waterdrop G3P600 Tankless Reverse-Osmosis System

  • PFOA: eligible, evidence match
  • PFOS: eligible, evidence match
  • Lead: eligible, evidence match
  • Not established: 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
See the evidenceCheck price on Amazon
Refrigerator Filter

Whirlpool Filter 3 Refrigerator Water Filter (WHR3RXD1)

  • PFOA: eligible, evidence match
  • PFOS: eligible, evidence match
  • Lead: eligible, evidence match
  • Not established: 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 the evidenceCheck price on Amazon
Water Pitcher

Culligan ZeroWater 10-Cup Pitcher (ZEROP10)

  • Lead: eligible, evidence match
  • Not established: PFOA, PFOS, Perfluorobutanesulfonic acid (PFBS) and 1 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
See the evidenceCheck price on Amazon
Faucet Attachment

Faucet-Mount Filter

  • Lead: eligible, evidence match
  • Not established: PFOA, PFOS, Perfluorobutanesulfonic acid (PFBS) and 1 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
See the evidenceCheck price on Amazon
Under-Sink Filter

Under-Sink Carbon Block Filter

  • Lead: eligible, evidence match
  • Not established: PFOA, PFOS, Perfluorobutanesulfonic acid (PFBS) and 1 more
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
See the evidenceCheck price on Amazon
Questions

Frequently asked questions

Is Durham tap water safe to drink?

PurityMap does not give a safe/unsafe verdict; it shows what the public records measured. For Durham, PFOS 5.8 ng/L and PFOA 4.1 ng/L were measured above the 4 ng/L federal limit in EPA's 2024 testing. DURHAM, CITY OF (PWSID NC0332010) has a Purity Score of 70/100 (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 Durham?

DURHAM, CITY OF (PWS ID NC0332010) is the public water system on record for Durham, North Carolina, serving about 333,490 people. Confirm the utility on your water bill before acting on a specific finding.

Where does Durham get its drinking water?

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

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

Yes. In EPA's UCMR 5 testing (2023-02-20 to 2023-11-14), PFOS was measured at 5.8 ng/L against a 4 ng/L federal limit and PFOA was measured at 4.1 ng/L against a 4 ng/L federal limit. PFBS (6.5 ng/L, below the 2,000 ng/L EPA health advisory) was also detected. PFBA (5.2 ng/L) was also detected; it has 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 Durham's tap water?

Lead is not in Durham'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 Durham water report show?

PurityMap's current record for Durham holds 36 findings: 2 above a reference, 6 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 Durham'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.

Double opt-in: we email a confirmation link. Unsubscribe anytime. No spam.

Sources and dataAll 36 records and their sourcesEPA UCMR 5 · EPA SDWIS (Lead & Copper Rule) · Utility CCR
ContaminantResultBenchmarkSampledSource
Perfluorooctanesulfonic acid (PFOS)5.8 ng/L4.0 ng/L federal MCL (2024)2023-02-20 to 2023-11-14UCMR5 Analytical Results: DURHAM, CITY OF (NC0332010)
Perfluorooctanoic acid (PFOA)4.1 ng/L4.0 ng/L federal MCL (2024)2023-02-20 to 2023-11-14UCMR5 Analytical Results: DURHAM, CITY OF (NC0332010)
Haloacetic acids (HAA5)52.5 ppb60 ppb federal MCL2024City of Durham Water Management 2024 Consumer Confidence Report (CCR)
Total trihalomethanes (TTHM)55.3 ppb80 ppb federal MCL2024City of Durham Water Management 2024 Consumer Confidence Report (CCR)
Fluoride0.69 mg/L4.0 mg/L2024City of Durham Water Management 2024 Consumer Confidence Report (CCR)
Copper0.137 mg/L1.3 mg/L (action level)2024City of Durham Water Management 2024 Consumer Confidence Report (CCR)
Nitrate0.33 mg/L10 mg/L2024City of Durham Water Management 2024 Consumer Confidence Report (CCR)
Perfluorobutanesulfonic acid (PFBS)6.5 ng/L2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit2023-02-20 to 2023-11-14UCMR5 Analytical Results: DURHAM, CITY OF (NC0332010)
Perfluorobutanoic acid (PFBA)5.2 ng/LNo federal or state limit; shown for transparency2023-02-20 to 2023-11-14UCMR5 Analytical Results: DURHAM, CITY OF (NC0332010)
27 other contaminants tested — none detected
ContaminantResultBenchmarkSampledSource
11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)< 5 ng/LNo federal or state limit; shown for transparency2023-02-20 to 2023-11-14UCMR5 Analytical Results: DURHAM, CITY OF (NC0332010)
1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS)< 5 ng/LNo federal or state limit; shown for transparency2023-02-20 to 2023-11-14UCMR5 Analytical Results: DURHAM, CITY OF (NC0332010)
1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS)< 3 ng/LNo federal or state limit; shown for transparency2023-02-20 to 2023-11-14UCMR5 Analytical Results: DURHAM, CITY OF (NC0332010)
1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS)< 5 ng/LNo federal or state limit; shown for transparency2023-02-20 to 2023-11-14UCMR5 Analytical Results: DURHAM, CITY OF (NC0332010)
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)< 3 ng/LNo federal or state limit; shown for transparency2023-02-20 to 2023-11-14UCMR5 Analytical Results: DURHAM, CITY OF (NC0332010)
9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS)< 2 ng/LNo federal or state limit; shown for transparency2023-02-20 to 2023-11-14UCMR5 Analytical Results: DURHAM, CITY OF (NC0332010)
Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals)< 5 ng/L10 ng/L federal MCL (2024)2023-02-20 to 2023-11-14UCMR5 Analytical Results: DURHAM, CITY OF (NC0332010)
Lead (90th percentile)Non-Detect (ND)15 µg/L federal action level2023–2025 monitoring periodLead & Copper Rule 90th-percentile: DURHAM, CITY OF (NC0332010)
Lithium< 9 µg/L10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit2023-02-20 to 2023-11-14UCMR5 Analytical Results: DURHAM, CITY OF (NC0332010)
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)< 5 ng/LNo federal or state limit; shown for transparency2023-02-20 to 2023-11-14UCMR5 Analytical Results: DURHAM, CITY OF (NC0332010)
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)< 6 ng/LNo federal or state limit; shown for transparency2023-02-20 to 2023-11-14UCMR5 Analytical Results: DURHAM, CITY OF (NC0332010)
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)< 20 ng/LNo federal or state limit; shown for transparency2023-02-20 to 2023-11-14UCMR5 Analytical Results: DURHAM, CITY OF (NC0332010)
Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)< 3 ng/LNo federal or state limit; shown for transparency2023-02-20 to 2023-11-14UCMR5 Analytical Results: DURHAM, CITY OF (NC0332010)
Perfluoro-3-methoxypropanoic acid (PFMPA)< 4 ng/LNo federal or state limit; shown for transparency2023-02-20 to 2023-11-14UCMR5 Analytical Results: DURHAM, CITY OF (NC0332010)
Perfluoro-4-methoxybutanoic acid (PFMBA)< 3 ng/LNo federal or state limit; shown for transparency2023-02-20 to 2023-11-14UCMR5 Analytical Results: DURHAM, CITY OF (NC0332010)
Perfluorodecanoic acid (PFDA)< 3 ng/LNo federal or state limit; shown for transparency2023-02-20 to 2023-11-14UCMR5 Analytical Results: DURHAM, CITY OF (NC0332010)
Perfluorododecanoic acid (PFDoA)< 3 ng/LNo federal or state limit; shown for transparency2023-02-20 to 2023-11-14UCMR5 Analytical Results: DURHAM, CITY OF (NC0332010)
Perfluoroheptanesulfonic acid (PFHpS)< 3 ng/LNo federal or state limit; shown for transparency2023-02-20 to 2023-11-14UCMR5 Analytical Results: DURHAM, CITY OF (NC0332010)
Perfluoroheptanoic acid (PFHpA)< 3 ng/LNo federal or state limit; shown for transparency2023-02-20 to 2023-11-14UCMR5 Analytical Results: DURHAM, CITY OF (NC0332010)
Perfluorohexanesulfonic acid (PFHxS)< 3 ng/L10 ng/L federal MCL (2024)2023-02-20 to 2023-11-14UCMR5 Analytical Results: DURHAM, CITY OF (NC0332010)
Perfluorohexanoic acid (PFHxA)< 3 ng/L400,000 ng/L Michigan EGLE state MCL (strictest US state)2023-02-20 to 2023-11-14UCMR5 Analytical Results: DURHAM, CITY OF (NC0332010)
Perfluorononanoic acid (PFNA)< 4 ng/L10 ng/L federal MCL (2024)2023-02-20 to 2023-11-14UCMR5 Analytical Results: DURHAM, CITY OF (NC0332010)
Perfluoropentanesulfonic acid (PFPeS)< 4 ng/LNo federal or state limit; shown for transparency2023-02-20 to 2023-11-14UCMR5 Analytical Results: DURHAM, CITY OF (NC0332010)
Perfluoropentanoic acid (PFPeA)< 3 ng/LNo federal or state limit; shown for transparency2023-02-20 to 2023-11-14UCMR5 Analytical Results: DURHAM, CITY OF (NC0332010)
Perfluorotetradecanoic acid (PFTA)< 8 ng/LNo federal or state limit; shown for transparency2023-02-20 to 2023-11-14UCMR5 Analytical Results: DURHAM, CITY OF (NC0332010)
Perfluorotridecanoic acid (PFTrDA)< 7 ng/LNo federal or state limit; shown for transparency2023-02-20 to 2023-11-14UCMR5 Analytical Results: DURHAM, CITY OF (NC0332010)
Perfluoroundecanoic acid (PFUnA)< 2 ng/LNo federal or state limit; shown for transparency2023-02-20 to 2023-11-14UCMR5 Analytical Results: DURHAM, CITY OF (NC0332010)

Perfluorooctanesulfonic acid (PFOS)

Result
5.8 ng/L
Benchmark
4.0 ng/L federal MCL (2024)
Sampled
2023-02-20 to 2023-11-14

Perfluorooctanoic acid (PFOA)

Result
4.1 ng/L
Benchmark
4.0 ng/L federal MCL (2024)
Sampled
2023-02-20 to 2023-11-14

Haloacetic acids (HAA5)

Result
52.5 ppb
Benchmark
60 ppb federal MCL
Sampled
2024

Total trihalomethanes (TTHM)

Result
55.3 ppb
Benchmark
80 ppb federal MCL
Sampled
2024

Fluoride

Result
0.69 mg/L
Benchmark
4.0 mg/L
Sampled
2024

Copper

Result
0.137 mg/L
Benchmark
1.3 mg/L (action level)
Sampled
2024

Nitrate

Result
0.33 mg/L
Benchmark
10 mg/L
Sampled
2024

Perfluorobutanesulfonic acid (PFBS)

Result
6.5 ng/L
Benchmark
2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit
Sampled
2023-02-20 to 2023-11-14

Perfluorobutanoic acid (PFBA)

Result
5.2 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2023-02-20 to 2023-11-14
27 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
Sampled
2023-02-20 to 2023-11-14

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

Result
< 5 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2023-02-20 to 2023-11-14

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

Result
< 3 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2023-02-20 to 2023-11-14

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

Result
< 5 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2023-02-20 to 2023-11-14

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

Result
< 3 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2023-02-20 to 2023-11-14

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

Result
< 2 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2023-02-20 to 2023-11-14

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

Result
< 5 ng/L
Benchmark
10 ng/L federal MCL (2024)
Sampled
2023-02-20 to 2023-11-14

Lead (90th percentile)

Result
Non-Detect (ND)
Benchmark
15 µg/L federal action level
Sampled
2023–2025 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
2023-02-20 to 2023-11-14

N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)

Result
< 5 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2023-02-20 to 2023-11-14

N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)

Result
< 6 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2023-02-20 to 2023-11-14

Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)

Result
< 20 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2023-02-20 to 2023-11-14

Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)

Result
< 3 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2023-02-20 to 2023-11-14

Perfluoro-3-methoxypropanoic acid (PFMPA)

Result
< 4 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2023-02-20 to 2023-11-14

Perfluoro-4-methoxybutanoic acid (PFMBA)

Result
< 3 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2023-02-20 to 2023-11-14

Perfluorodecanoic acid (PFDA)

Result
< 3 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2023-02-20 to 2023-11-14

Perfluorododecanoic acid (PFDoA)

Result
< 3 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2023-02-20 to 2023-11-14

Perfluoroheptanesulfonic acid (PFHpS)

Result
< 3 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2023-02-20 to 2023-11-14

Perfluoroheptanoic acid (PFHpA)

Result
< 3 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2023-02-20 to 2023-11-14

Perfluorohexanesulfonic acid (PFHxS)

Result
< 3 ng/L
Benchmark
10 ng/L federal MCL (2024)
Sampled
2023-02-20 to 2023-11-14

Perfluorohexanoic acid (PFHxA)

Result
< 3 ng/L
Benchmark
400,000 ng/L Michigan EGLE state MCL (strictest US state)
Sampled
2023-02-20 to 2023-11-14

Perfluorononanoic acid (PFNA)

Result
< 4 ng/L
Benchmark
10 ng/L federal MCL (2024)
Sampled
2023-02-20 to 2023-11-14

Perfluoropentanesulfonic acid (PFPeS)

Result
< 4 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2023-02-20 to 2023-11-14

Perfluoropentanoic acid (PFPeA)

Result
< 3 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2023-02-20 to 2023-11-14

Perfluorotetradecanoic acid (PFTA)

Result
< 8 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2023-02-20 to 2023-11-14

Perfluorotridecanoic acid (PFTrDA)

Result
< 7 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2023-02-20 to 2023-11-14

Perfluoroundecanoic acid (PFUnA)

Result
< 2 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2023-02-20 to 2023-11-14

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: DURHAM, CITY OF (NC0332010)

    US EPA

    Published
    2026-01-15
    Newest sample
    2023-11-14
    Findings here
    30

    View source ↗Source record

  • State SDWIS Compliance Record

    Lead & Copper Rule 90th-percentile: DURHAM, CITY OF (NC0332010)

    US EPA SDWIS

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

    View source ↗Source record

  • Consumer Confidence Report (CCR)

    City of Durham Water Management 2024 Consumer Confidence Report (CCR)

    City of Durham Water Management

    Published
    2024-01-01
    Newest sample
    2024
    Findings here
    5

    View source ↗Source record

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

Data & methodologyHow we analyze waterData integrity policy

Something off with your water's smell, color or taste?

Start with the hot-or-cold tap check. Where Durham, City of reported something related, it's shown below.