PORT WASHINGTON WDlikely match

City water report · 2026

Is Port Washington 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); 2 more are detected with no federal limit, and everything else measured is within its reference or not detected. Port Washington WD serves 34,000 residents.

Explore the findings What can I do?Follow

Likely match, check your bill

PORT WASHINGTON WD serves Port Washington

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

Source: Groundwater

PORT WASHINGTON WDThis report
NY2912267 · 34,000 served

Also supplies: Manorhaven, Port Washington North, Baxter Estates

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.

PFOA

Perfluorooctanoic acid

1.3× the limit

5.3ng/L

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

EPA UCMR 5 · sampled 2023Evidence

PFOS

Perfluorooctanesulfonic acid

1.2× the limit

4.7ng/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)
2 above · 4 detected · 23 not detected
Metals & lead
1 detected
Disinfection by-productsNot monitored
Other
1 not detected

Every detected result

7 detected results, by distance from their limit

PORT WASHINGTON WD (EPA PWSID NY2912267) delivers groundwater to 34,000 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.

Perfluorooctanoic acid (PFOA)EPA UCMR 5 · 2023
4.0 ng/L federal MCL (2024)
5.3ng/L
Above limit
Perfluorooctanesulfonic acid (PFOS)EPA UCMR 5 · 2023
4.0 ng/L federal MCL (2024)
4.7ng/L
Above limit
Perfluorononanoic acid (PFNA)EPA UCMR 5 · 2023
10 ng/L federal MCL (2024)
4.2ng/L
Within reference
Lead (90th percentile)EPA SDWIS (Lead & Copper Rule) · 2022
15 µg/L federal action level
2µg/L
Within reference
Perfluorohexanoic acid (PFHxA)EPA UCMR 5 · 2023
400,000 ng/L Michigan EGLE state MCL (strictest US state)
3.6ng/L
Within reference
1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS)EPA UCMR 5 · 2023
No federal or state limit; shown for transparency
6.5ng/L
Detected · no limit
Perfluoropentanoic acid (PFPeA)EPA UCMR 5 · 2023
No federal or state limit; shown for transparency
6.9ng/L
Detected · no limit

24 other contaminants tested, none detected

11Cl-PF3OUdS
4:2 FTS
8:2 FTS
9Cl-PF3ONS
ADONA
HFPO-DA (GenX)
NEtFOSAA
NFDHA
NMeFOSAA
PFBA
PFBS
PFDA
PFDoA
PFEESA
PFHpA
PFHpS
PFHxS
PFMBA
PFMPA
PFPeS
PFTA
PFTrDA
PFUnA
Lithium

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.

What you can do

Test first, then treat what was found

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 →
02 · Treat PFASReverse osmosis, or carbon certified for PFAS
PFOA 5.3 ng/L, above the 4 ng/L limit (+5 more PFAS detected)
NSF/ANSI 58 or 53, with PFOA/PFOS/PFHxA/PFNA/6:2 FTS/PFPeA named on the listing
Treatment for PFAS →
03 · LeadLead-certified carbon filter, or reverse osmosis
lead 2 µg/L, below the 15 µg/L action level
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
- Analyzed by Environmental Testing and Research Laboratories (ETR Labs), Leominster, MA · ISO/IEC 17025:2017, ANAB certificate AT-2638
- Turnaround: 2–4 business days after the lab receives it
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

When your results arrive, read them here →

Commercial

Certified for a concern found here

Each card names which Port Washington 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
PFOS: eligible, evidence match
Lead: eligible, evidence match
Not established: Perfluorohexanoic acid (PFHxA), Perfluorononanoic acid (PFNA), 1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS) and 1 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 the evidence Check price on Amazon

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: Perfluorohexanoic acid (PFHxA), Perfluorononanoic acid (PFNA), 1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS) and 1 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 the evidence Check price on Amazon

See all 13 products certified for a Port Washington concern →

Countertop System

Aquasana Clean Water Machine Countertop Filter (AQ-CWM2)

PFOA: eligible, evidence match
PFOS: eligible, evidence match
Lead: eligible, evidence match
Not established: Perfluorohexanoic acid (PFHxA), Perfluorononanoic acid (PFNA), 1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS) 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 evidence Check price on Amazon

Countertop System

Patriot Pure Ultimate Water Filtration System

PFOA: eligible, evidence match
PFOS: eligible, evidence match
Lead: eligible, evidence match
Not established: Perfluorohexanoic acid (PFHxA), Perfluorononanoic acid (PFNA), 1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS) 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 evidence Check price on Amazon

Countertop System

AquaTru Carafe Countertop Reverse-Osmosis Purifier (AT100)

PFOA: eligible, evidence match
PFOS: eligible, evidence match
Lead: eligible, evidence match
Not established: Perfluorohexanoic acid (PFHxA), Perfluorononanoic acid (PFNA), 1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS) 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 evidence Check price on Amazon

Countertop System

AquaTru Classic Countertop Reverse-Osmosis Purifier (AT2000)

PFOA: eligible, evidence match
PFOS: eligible, evidence match
Lead: eligible, evidence match
Not established: Perfluorohexanoic acid (PFHxA), Perfluorononanoic acid (PFNA), 1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS) 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 evidence Check 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: Perfluorohexanoic acid (PFHxA), Perfluorononanoic acid (PFNA), 1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS) and 1 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 the evidence Check price on Amazon

Under-Sink Filter

Waterdrop G3P800 Tankless Reverse-Osmosis System

PFOA: eligible, evidence match
PFOS: eligible, evidence match
Lead: eligible, evidence match
Not established: Perfluorohexanoic acid (PFHxA), Perfluorononanoic acid (PFNA), 1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS) and 1 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 the evidence Check 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: Perfluorohexanoic acid (PFHxA), Perfluorononanoic acid (PFNA), 1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS) 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 evidence Check price on Amazon

Water Pitcher

Brita Elite Water Filter Pitcher

Lead: eligible, evidence match
Not established: PFOA, PFOS, 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

See the evidence Check price on Amazon

Water Pitcher

Culligan ZeroWater 10-Cup Pitcher (ZEROP10)

Lead: eligible, evidence match
Not established: PFOA, PFOS, 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

See the evidence Check price on Amazon

Faucet Attachment

PUR Plus Faucet Filter (FM2500V)

Lead: eligible, evidence match
Not established: PFOA, PFOS, 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

See the evidence Check price on Amazon

Under-Sink Filter

Frizzlife SP99 Under-Sink Filter

Lead: eligible, evidence match
Not established: PFOA, PFOS, Perfluorohexanoic acid (PFHxA) and 3 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 evidence Check price on Amazon

Questions

Frequently asked questions

Is Port Washington tap water safe to drink?

PurityMap does not give a safe/unsafe verdict; it shows what the public records measured. For Port Washington, PFOA 5.3 ng/L and PFOS 4.7 ng/L were measured above the 4 ng/L federal limit in EPA's 2024 testing; the lead 90th-percentile result was 2 µg/L against the 15 µg/L action level. PORT WASHINGTON WD (PWSID NY2912267) has a Purity Score of 70/100 (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 Port Washington?

PORT WASHINGTON WD (PWS ID NY2912267) is the public water system on record for Port Washington, New York, serving about 34,000 people. Confirm the utility on your water bill before acting on a specific finding.

Where does Port Washington get its drinking water?

Groundwater (primary source of record in EPA SDWIS).

Are PFAS "forever chemicals" in Port Washington's water?

Yes. In EPA's UCMR 5 testing (2023-02-14 to 2026-06-09), PFOA was measured at 5.3 ng/L against a 4 ng/L federal limit and PFOS was measured at 4.7 ng/L against a 4 ng/L federal limit. PFHxA (3.6 ng/L, below the 400,000 ng/L state limit) and PFNA (4.2 ng/L, below the 10 ng/L federal limit) were also detected. 6:2 FTS (6.5 ng/L) and PFPeA (6.9 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 Port Washington's tap water?

PORT WASHINGTON WD's most recent lead 90th-percentile result (2022–2024) was 2 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 Port Washington water report show?

PurityMap's current record for Port Washington holds 31 findings: 2 above a reference, 3 detected within the reference, 2 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.

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Sources and dataAll 31 records and their sourcesEPA UCMR 5 · EPA SDWIS (Lead & Copper Rule)

Contaminant	Result	Benchmark	Status	Sampled	Source
Perfluorooctanoic acid (PFOA)	5.3 ng/L	4.0 ng/L federal MCL (2024)	Above a historical reference; current applicability unverified	2023-02-14 to 2026-06-09	UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)
Perfluorooctanesulfonic acid (PFOS)	4.7 ng/L	4.0 ng/L federal MCL (2024)	Above a historical reference; current applicability unverified	2023-02-14 to 2026-06-09	UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)
Perfluorononanoic acid (PFNA)	4.2 ng/L	10 ng/L federal MCL (2024)	Within a historical reference; current applicability unverified	2023-02-14 to 2026-06-09	UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)
Lead (90th percentile)	2 µg/L	15 µg/L federal action level	Below the listed reference	2022–2024 monitoring period	Lead & Copper Rule 90th-percentile: PORT WASHINGTON WD (NY2912267)
Perfluorohexanoic acid (PFHxA)	3.6 ng/L	400,000 ng/L Michigan EGLE state MCL (strictest US state)	Within a historical reference; current applicability unverified	2023-02-14 to 2026-06-09	UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)
1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS)	6.5 ng/L	No federal or state limit; shown for transparency	Detected, no limit	2023-02-14 to 2026-06-09	UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)
Perfluoropentanoic acid (PFPeA)	6.9 ng/L	No federal or state limit; shown for transparency	Detected, no limit	2023-02-14 to 2026-06-09	UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)

24 other contaminants tested — none detected

Contaminant	Result	Benchmark	Status	Sampled	Source
11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)	< 5 ng/L	No federal or state limit; shown for transparency	Not detected above the reporting limit	2023-02-14 to 2026-06-09	UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)
1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS)	< 5 ng/L	No federal or state limit; shown for transparency	Not detected above the reporting limit	2023-02-14 to 2026-06-09	UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)
1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS)	< 3 ng/L	No federal or state limit; shown for transparency	Not detected above the reporting limit	2023-02-14 to 2026-06-09	UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)	< 3 ng/L	No federal or state limit; shown for transparency	Not detected above the reporting limit	2023-02-14 to 2026-06-09	UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)
9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS)	< 2 ng/L	No federal or state limit; shown for transparency	Not detected above the reporting limit	2023-02-14 to 2026-06-09	UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)
Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals)	< 5 ng/L	10 ng/L federal MCL (2024)	Not detected above the reporting limit	2023-02-14 to 2026-06-09	UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)
Lithium	< 9 µg/L	10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit	Not detected above the reporting limit	2023-02-14 to 2026-01-12	UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)	< 5 ng/L	No federal or state limit; shown for transparency	Not detected above the reporting limit	2023-02-14 to 2026-01-12	UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)	< 6 ng/L	No federal or state limit; shown for transparency	Not detected above the reporting limit	2023-02-14 to 2026-01-12	UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)	< 20 ng/L	No federal or state limit; shown for transparency	Not detected above the reporting limit	2023-02-14 to 2026-06-09	UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)
Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)	< 3 ng/L	No federal or state limit; shown for transparency	Not detected above the reporting limit	2023-02-14 to 2026-06-09	UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)
Perfluoro-3-methoxypropanoic acid (PFMPA)	< 4 ng/L	No federal or state limit; shown for transparency	Not detected above the reporting limit	2023-02-14 to 2026-06-09	UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)
Perfluoro-4-methoxybutanoic acid (PFMBA)	< 3 ng/L	No federal or state limit; shown for transparency	Not detected above the reporting limit	2023-02-14 to 2026-06-09	UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)
Perfluorobutanesulfonic acid (PFBS)	< 3 ng/L	2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit	Not detected above the reporting limit	2023-02-14 to 2026-06-09	UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)
Perfluorobutanoic acid (PFBA)	< 5 ng/L	No federal or state limit; shown for transparency	Not detected above the reporting limit	2023-02-14 to 2026-06-09	UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)
Perfluorodecanoic acid (PFDA)	< 3 ng/L	No federal or state limit; shown for transparency	Not detected above the reporting limit	2023-02-14 to 2026-06-09	UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)
Perfluorododecanoic acid (PFDoA)	< 3 ng/L	No federal or state limit; shown for transparency	Not detected above the reporting limit	2023-02-14 to 2026-06-09	UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)
Perfluoroheptanesulfonic acid (PFHpS)	< 3 ng/L	No federal or state limit; shown for transparency	Not detected above the reporting limit	2023-02-14 to 2026-06-09	UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)
Perfluoroheptanoic acid (PFHpA)	< 3 ng/L	No federal or state limit; shown for transparency	Not detected above the reporting limit	2023-02-14 to 2026-06-09	UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)
Perfluorohexanesulfonic acid (PFHxS)	< 3 ng/L	10 ng/L federal MCL (2024)	Not detected above the reporting limit	2023-02-14 to 2026-06-09	UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)
Perfluoropentanesulfonic acid (PFPeS)	< 4 ng/L	No federal or state limit; shown for transparency	Not detected above the reporting limit	2023-02-14 to 2026-06-09	UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)
Perfluorotetradecanoic acid (PFTA)	< 8 ng/L	No federal or state limit; shown for transparency	Not detected above the reporting limit	2023-02-14 to 2026-01-12	UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)
Perfluorotridecanoic acid (PFTrDA)	< 7 ng/L	No federal or state limit; shown for transparency	Not detected above the reporting limit	2023-02-14 to 2026-01-12	UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)
Perfluoroundecanoic acid (PFUnA)	< 2 ng/L	No federal or state limit; shown for transparency	Not detected above the reporting limit	2023-02-14 to 2026-06-09	UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)

Perfluorooctanoic acid (PFOA)

Result: 5.3 ng/L
Benchmark: 4.0 ng/L federal MCL (2024)
Status: Above a historical reference; current applicability unverified
Sampled: 2023-02-14 to 2026-06-09
Source: UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)

Perfluorooctanesulfonic acid (PFOS)

Result: 4.7 ng/L
Benchmark: 4.0 ng/L federal MCL (2024)
Status: Above a historical reference; current applicability unverified
Sampled: 2023-02-14 to 2026-06-09
Source: UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)

Perfluorononanoic acid (PFNA)

Result: 4.2 ng/L
Benchmark: 10 ng/L federal MCL (2024)
Status: Within a historical reference; current applicability unverified
Sampled: 2023-02-14 to 2026-06-09
Source: UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)

Lead (90th percentile)

Result: 2 µg/L
Benchmark: 15 µg/L federal action level
Status: Below the listed reference
Sampled: 2022–2024 monitoring period
Source: Lead & Copper Rule 90th-percentile: PORT WASHINGTON WD (NY2912267)

Perfluorohexanoic acid (PFHxA)

Result: 3.6 ng/L
Benchmark: 400,000 ng/L Michigan EGLE state MCL (strictest US state)
Status: Within a historical reference; current applicability unverified
Sampled: 2023-02-14 to 2026-06-09
Source: UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)

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

Result: 6.5 ng/L
Benchmark: No federal or state limit; shown for transparency
Status: Detected, no limit
Sampled: 2023-02-14 to 2026-06-09
Source: UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)

Perfluoropentanoic acid (PFPeA)

Result: 6.9 ng/L
Benchmark: No federal or state limit; shown for transparency
Status: Detected, no limit
Sampled: 2023-02-14 to 2026-06-09
Source: UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)

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: 2023-02-14 to 2026-06-09
Source: UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)

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: 2023-02-14 to 2026-06-09
Source: UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)

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: 2023-02-14 to 2026-06-09
Source: UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)

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: 2023-02-14 to 2026-06-09
Source: UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)

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: 2023-02-14 to 2026-06-09
Source: UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)

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: 2023-02-14 to 2026-06-09
Source: UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)

Lithium

Result: < 9 µg/L
Benchmark: 10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit
Status: Not detected above the reporting limit
Sampled: 2023-02-14 to 2026-01-12
Source: UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)

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: 2023-02-14 to 2026-01-12
Source: UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)

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: 2023-02-14 to 2026-01-12
Source: UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)

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: 2023-02-14 to 2026-06-09
Source: UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)

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: 2023-02-14 to 2026-06-09
Source: UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)

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: 2023-02-14 to 2026-06-09
Source: UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)

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: 2023-02-14 to 2026-06-09
Source: UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)

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: 2023-02-14 to 2026-06-09
Source: UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)

Perfluorobutanoic acid (PFBA)

Result: < 5 ng/L
Benchmark: No federal or state limit; shown for transparency
Status: Not detected above the reporting limit
Sampled: 2023-02-14 to 2026-06-09
Source: UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)

Perfluorodecanoic acid (PFDA)

Result: < 3 ng/L
Benchmark: No federal or state limit; shown for transparency
Status: Not detected above the reporting limit
Sampled: 2023-02-14 to 2026-06-09
Source: UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)

Perfluorododecanoic acid (PFDoA)

Result: < 3 ng/L
Benchmark: No federal or state limit; shown for transparency
Status: Not detected above the reporting limit
Sampled: 2023-02-14 to 2026-06-09
Source: UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)

Perfluoroheptanesulfonic acid (PFHpS)

Result: < 3 ng/L
Benchmark: No federal or state limit; shown for transparency
Status: Not detected above the reporting limit
Sampled: 2023-02-14 to 2026-06-09
Source: UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)

Perfluoroheptanoic acid (PFHpA)

Result: < 3 ng/L
Benchmark: No federal or state limit; shown for transparency
Status: Not detected above the reporting limit
Sampled: 2023-02-14 to 2026-06-09
Source: UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)

Perfluorohexanesulfonic acid (PFHxS)

Result: < 3 ng/L
Benchmark: 10 ng/L federal MCL (2024)
Status: Not detected above the reporting limit
Sampled: 2023-02-14 to 2026-06-09
Source: UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)

Perfluoropentanesulfonic acid (PFPeS)

Result: < 4 ng/L
Benchmark: No federal or state limit; shown for transparency
Status: Not detected above the reporting limit
Sampled: 2023-02-14 to 2026-06-09
Source: UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)

Perfluorotetradecanoic acid (PFTA)

Result: < 8 ng/L
Benchmark: No federal or state limit; shown for transparency
Status: Not detected above the reporting limit
Sampled: 2023-02-14 to 2026-01-12
Source: UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)

Perfluorotridecanoic acid (PFTrDA)

Result: < 7 ng/L
Benchmark: No federal or state limit; shown for transparency
Status: Not detected above the reporting limit
Sampled: 2023-02-14 to 2026-01-12
Source: UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)

Perfluoroundecanoic acid (PFUnA)

Result: < 2 ng/L
Benchmark: No federal or state limit; shown for transparency
Status: Not detected above the reporting limit
Sampled: 2023-02-14 to 2026-06-09
Source: UCMR5 Analytical Results: PORT WASHINGTON WD (NY2912267)

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: PORT WASHINGTON WD (NY2912267)
US EPA
Published
2026-01-15
Newest sample
2026-06-09
Findings here
30
View source ↗Source record
State SDWIS Compliance Record
Lead & Copper Rule 90th-percentile: PORT WASHINGTON WD (NY2912267)
US EPA SDWIS
Published
2026-07-09
Newest sample
2024
Findings here
1
View source ↗Source record

Methodology: how we analyze water.

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 Port Washington WD reported something related, it's shown below.

Rotten-egg smell
Cloudy or milky water
Chlorine smell
Brown or yellow water
Metallic taste
Lead at Port Washington WD: 2 µg/L (90th percentile, 2022–2024 monitoring period). Lead has no taste, so a taste neither shows nor rules it out.

ZIP codes in Port Washington

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

PORT WASHINGTON WD serves Port Washington

Two PFAS above the 2024 federal limit

Perfluorooctanoic acid

Perfluorooctanesulfonic acid

Coverage by group

7 detected results, by distance from their limit

Test first, then treat what was found

Test your own tap

Safe Home DIY Lead in Drinking Water Combo Test Kit

ETR Labs Basic Water Quality Test Kit

Certified for a concern found here

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

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

Aquasana Clean Water Machine Countertop Filter (AQ-CWM2)

Patriot Pure Ultimate Water Filtration System

AquaTru Carafe Countertop Reverse-Osmosis Purifier (AT100)

AquaTru Classic Countertop Reverse-Osmosis Purifier (AT2000)

Waterdrop G3P600 Tankless Reverse-Osmosis System

Waterdrop G3P800 Tankless Reverse-Osmosis System

Whirlpool Filter 3 Refrigerator Water Filter (WHR3RXD1)

Brita Elite Water Filter Pitcher

Culligan ZeroWater 10-Cup Pitcher (ZEROP10)

PUR Plus Faucet Filter (FM2500V)

Frizzlife SP99 Under-Sink Filter

Frequently asked questions

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

ZIP codes in Port Washington