PFAS in the drinking water of Suffolk County Water Authority: 29.1 ng/L, 58.2x our 0.5 ng/L benchmark

Q: Is the tap water in Suffolk County Water Authority safe to drink?

In the latest UCMR 5 entry-point sample on November 21, 2023, the four most closely watched PFAS added up to at least 29.1 ng/L, 58.2 times the 0.5 ng/L health benchmark pfasnearme uses. PFOA and PFOS were above the 4.0 ng/L federal MCL that systems must meet from April 2029. EPA set the maximum contaminant level goal (MCLG) for PFOA and PFOS at zero because there is no level without risk. UCMR 5 results do not indicate compliance or noncompliance with the PFAS drinking water standards, and this site reports published measurements without judging health risk. This is not medical advice. If you are concerned, talk to your water system or your doctor.

Q: What is UCMR 5 and why do the results say "below the reporting limit"?

The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) had every large US water system and a sample of small ones test 29 PFAS and lithium between 2023 and 2025, at each entry point to the distribution system. EPA set minimum reporting levels of 3 to 4 ng/L for PFOA, PFOS, PFNA and PFHxS and reports nothing below them. A result "below the 3 to 4 ng/L reporting limit" therefore means the lab could not quantify the compound, not that it is absent, and it is never shown here as zero.

Q: What do the 0.5 ng/L benchmark and the 4.0 ng/L MCL mean, and why are both shown?

0.5 ng/L for the PFAS-4 sum (PFOA + PFOS + PFNA + PFHxS) is the health benchmark pfasnearme applies on every page, in Europe and the United States, built from the European Food Safety Authority's tolerable intake with stricter safety choices. 4.0 ng/L is the enforceable federal maximum contaminant level for PFOA and for PFOS individually under EPA's PFAS National Primary Drinking Water Regulation (NPDWR), the US legal limit. Any PFAS-4 compound quantified under UCMR 5 (at or above 3 to 4 ng/L) is above the benchmark, so the benchmark tells you whether anything was found and the MCL tells you whether the system would have to act. EPA set the maximum contaminant level goal (MCLG) for PFOA and PFOS at zero because there is no level without risk.

Q: When does the 4.0 ng/L MCL apply, and could it change?

EPA published the PFAS National Primary Drinking Water Regulation (NPDWR) on April 26, 2024. Systems must finish initial monitoring by April 26, 2027, tell customers about PFAS in their 2027 Consumer Confidence Reports, and comply with the PFOA and PFOS MCLs from April 26, 2029. Two proposals published on May 20, 2026 are not final: one would let systems in states where EPA holds primacy extend PFOA and PFOS compliance to April 26, 2031; the other would rescind the PFHxS, PFNA, HFPO-DA MCLs and the Hazard Index while keeping PFOA and PFOS. The rule is also before the U.S. Court of Appeals for the D.C. Circuit (American Water Works Association v. EPA, argued 2026-09-18 before Judges Millett, Pillard and Wilkins; no decision). Regulation data retrieved September 19, 2026.

Q: Does New York have its own PFAS limits?

Yes. New York State Department of Health (NYSDOH), Bureau of Water Supply Protection enforces MCLs under 10 NYCRR Subpart 5-1: PFOA 10 ng/L (since August 26, 2020); PFOS 10 ng/L (since August 26, 2020). The federal PFOA and PFOS MCLs (4.0 ng/L) are stricter than every state MCL, so the federal line is about severity and the state line is about what is enforceable today. In this UCMR 5 sample, PFOS was above the New York MCL. State monitoring: quarterly compliance monitoring since 2020; annual mean and maximum per system published by the Environmental Public Health Tracker.

Q: Is this the water that comes out of my tap in Suffolk County Water Authority?

Only if Suffolk County Water Authority (PWSID NY5110526) is your water system: check your water bill or your ZIP code page on this site, or the Suffolk County page. Samples are taken at the entry point to the distribution system, not at your tap. The system may have changed sources or installed treatment since this sample. PFAS treatment reported to EPA: granular activated carbon (GAC), ion exchange (IEX), no PFAS treatment reported (NMT). The system's own Consumer Confidence Report, published every year, states what it measures today.

Q: What can I do about PFAS in my water?

Ask Suffolk County Water Authority for its latest PFAS results and its plan for the 2029 MCLs, read its Consumer Confidence Report (EPA's CCR finder, PWSID NY5110526), and if you want to lower PFAS at home, use a filter certified to NSF/ANSI 53 or 58 for PFOA and PFOS (reverse osmosis and activated carbon block filters; see the filter comparison linked on this page). Boiling water does not remove PFAS.

Q: Are PFAS levels rising in Suffolk County Water Authority's water?

pfasnearme reads a trend per entry point, and the headline entry point (Station Rd. #3A (Station Rd. Int. Wellfield)) has 2 quantified samples across the 480 UCMR 5 sampling events since January 3, 2023; a trend needs at least three. UCMR 5 monitoring is complete, so later trends will come from state compliance monitoring.

Last PFAS check: November 21, 2023 · Source: EPA UCMR 5

PFAS in drinking water

58.2× above our health benchmark

Amount found in the water 29.1 ng/L 0.0291 µg/L · the 4 most harmful PFAS (PFAS-4)

Our health benchmark 0.5 ng/L

0.5 ng/L is our benchmark, not an official limit. It uses the same EFSA method as the Swedish, Danish and Dutch limits, with stricter safety choices. It's meant as a yearly average. The comparison above uses the latest check.

How we chose 0.5 ng/L

checked on November 21, 2023

Sampled on November 21, 2023 at Station Rd. #3A (Station Rd. Int. Wellfield). It has the highest PFAS-4 sum of the system's 242 entry points. Samples are taken at the entry point to the distribution system, not at your tap.

US legal limit: 4.0 ng/L federal MCL for PFOA and PFOS

PFOA 5.3 ng/L above the 2029 federal MCL
PFOS 17.4 ng/L above the 2029 federal MCL above the New York MCL of 10 ng/L

Applies from April 2029, as a running annual average per sampling point. UCMR 5 results do not indicate compliance or noncompliance with the PFAS drinking water standards.

Other regulated PFAS: 10 ng/L MCLs and the Hazard Index. PFHxS 6.4 ng/L, PFNA below the 4 ng/L reporting limit, HFPO-DA below the 5 ng/L reporting limit; Hazard Index (PFHxS, PFNA, HFPO-DA, PFBS): 0.64 (limit 1). EPA proposed on May 20, 2026 to rescind the PFHxS, PFNA, HFPO-DA MCLs and the Hazard Index; no final rule had been published when this page's regulation data was retrieved (September 19, 2026).

More about this result

Substances below the detection limit count as 0, so the real total may be higher.

One of these four, PFOA, is classified as causing cancer in humans by the WHO's cancer research agency (IARC).

More PFAS than in 98% of the water systems we track

UCMR 5 measures 29 PFAS one by one and publishes no EU-style total; this page shows the PFAS-4 sum and each compound.

29 PFAS (see each substance)

PFAS substance	Value
PFOS	17.4 ng/L
PFHxS	6.4 ng/L
PFOA	5.3 ng/L
PFPeA	3.8 ng/L
PFHxA	3.6 ng/L
PFNA	below the 4 ng/L reporting limit
HFPO-DA	below the 5 ng/L reporting limit
PFBS	below the 3 ng/L reporting limit
11Cl-PF3OUdS	below the 5 ng/L reporting limit
4:2 FTS	below the 3 ng/L reporting limit
6:2 FTS	below the 5 ng/L reporting limit
8:2 FTS	below the 5 ng/L reporting limit
9Cl-PF3ONS	below the 2 ng/L reporting limit
ADONA	below the 3 ng/L reporting limit
NEtFOSAA	below the 5 ng/L reporting limit
NFDHA	below the 20 ng/L reporting limit
NMeFOSAA	below the 6 ng/L reporting limit
PFBA	below the 5 ng/L reporting limit
PFDA	below the 3 ng/L reporting limit
PFDoA	below the 3 ng/L reporting limit
PFEESA	below the 3 ng/L reporting limit
PFHpA	below the 3 ng/L reporting limit
PFHpS	below the 3 ng/L reporting limit
PFMBA	below the 3 ng/L reporting limit
PFMPA	below the 4 ng/L reporting limit
PFPeS	below the 4 ng/L reporting limit
PFTA	below the 8 ng/L reporting limit
PFTrDA	below the 7 ng/L reporting limit
PFUnA	below the 2 ng/L reporting limit

Above our health benchmark. You can compare filter types below.

Federal MCL, PFOA and PFOS (each): 4.0 ng/L PFOA and PFOS above it at the headline sample; applies from April 2029
Latest UCMR 5 sample: November 21, 2023 entry-point sample, not your tap
EPA system ID (PWSID): NY5110526

Details and sources

At Suffolk County Water Authority (New York), the four most closely watched PFAS (PFAS-4) add up to at least 29.1 ng/L (0.0291 µg/L), the other compounds being below the 3 to 4 ng/L reporting limit in the latest UCMR 5 entry-point sample on November 21, 2023 at Station Rd. #3A (Station Rd. Int. Wellfield). That is 58.2 times the 0.5 ng/L health benchmark used by pfasnearme. PFOA 5.3 ng/L and PFOS 17.4 ng/L, both above the 4.0 ng/L federal MCL for PFOA and PFOS that systems must meet from April 2029. Across 480 UCMR 5 sampling events since January 3, 2023, the PFAS-4 sum reached up to 29.1 ng/L and was below the reporting limits at other times. Source: U.S. Environmental Protection Agency, Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) occurrence data, final dataset (August 2026), public domain.

EPA system ID (PWSID): NY5110526Population served: 1,100,000 Latest UCMR 5 sample: September 29, 2025 Data updated on September 19, 2026

Source and citation

Data source: U.S. Environmental Protection Agency, Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) occurrence data, final dataset (August 2026)
Latest result: September 29, 2025
Data retrieved on: September 19, 2026
Reuse licence: Public domain (U.S. federal government work, 17 U.S.C. § 105)
Cite this page: pfasnearme, "PFAS in Suffolk County Water Authority drinking water (New York): UCMR 5 results, PFOA and PFOS", from EPA UCMR 5 (public domain), latest entry-point sample September 29, 2025, compared with the site's 0.5 ng/L PFAS-4 benchmark and the 4.0 ng/L federal MCL for PFOA and PFOS, data retrieved September 19, 2026, https://pfasnearme.com/en/us/suffolk-county-water-authority-ny5110526/

UCMR 5 results do not indicate compliance or noncompliance with the PFAS drinking water standards. Samples are taken at the entry point to the distribution system, not at your tap. Reporting limits 3 to 4 ng/L; a compound below its reporting limit is never shown as zero. Regulation data (MCLs, dates) retrieved September 19, 2026. Public domain: reuse freely with attribution to EPA and a link to this page.

This page's data as JSON

PFAS over time in Suffolk County Water Authority

480 UCMR 5 sampling events since January 3, 2023, as published by EPA. Samples come from 242 entry points; the trend refers to Station Rd. #3A (Station Rd. Int. Wellfield).

PFAS-4 sum per sampling event in ng/L. Dashed line: pfasnearme's 0.5 ng/L benchmark. Hollow dots: no compound quantified.

Date	PFAS-4	Entry point
September 29, 2025	< 15 ng/L	Smith St. #1 (Smith St. (EF) Wellfield)
June 26, 2025	< 15 ng/L	Oak Beach Road #1 (Oak Beach Road Wellfield)
March 13, 2025	< 15 ng/L	Smith St. #1 (Smith St. (EF) Wellfield)
March 13, 2025	< 15 ng/L	Schuyler Dr. #1A (Schuyler Dr. Wellfield)
January 15, 2025	< 15 ng/L	Raleigh Lane #1 (Raleigh Lane Wellfield)
January 15, 2025	< 15 ng/L	Hollywood Place #1 (Hollywood Place Wellfield)
December 26, 2024	< 15 ng/L	Oak Beach Road #1 (Oak Beach Road Wellfield)
December 11, 2024	< 15 ng/L	Cornell Dr. #2 (Cornell Dr. Wellfield)
December 11, 2024	< 15 ng/L	Kings Park Rd. #3 (Kings Park Rd. Wellfield)
November 27, 2024	< 15 ng/L	China Rd. #2 (China Rd. Wellfield)
November 27, 2024	< 15 ng/L	Church St. BOH #3 (Church St. BOH Wellfield)
November 27, 2024	< 15 ng/L	Church St. HOL #3 (Church St. HOL Wellfield)

Show the 468 earlier checks (back to January 3, 2023)

November 27, 2024	< 15 ng/L	Lakeview Ave. #4 (Lakeview Ave. Wellfield)
November 26, 2024	< 15 ng/L	Old Dock Rd. #1 (Old Dock Rd. Wellfield)
November 26, 2024	< 15 ng/L	Walter Ct. #2 (Walter Ct. Wellfield)
November 26, 2024	< 15 ng/L	Sunken Meadow State Park #1 (Sunken Meadow State Park Wellfield)
November 25, 2024	< 15 ng/L	Ackerly Pond Lane #2 (Ackerly Pond Lane Wellfield)
November 13, 2024	< 15 ng/L	Carlson Ave. #7 (Carlson Ave. Wellfield)
November 13, 2024	< 15 ng/L	Lawrence Rd. #1A (Lawrence Rd. Wellfield)
November 12, 2024	< 15 ng/L	Middleville Rd. #2 (Middleville Rd. Wellfield)
November 12, 2024	< 15 ng/L	Wayne Ct. #1 (Wayne Ct. Wellfield)
November 5, 2024	< 15 ng/L	Flower Hill Rd. #3 (Flower Hill Rd. Wellfield)
November 5, 2024	< 15 ng/L	Laurel Hill Rd. #1 (Laurel Hill Rd. Wellfield)
November 5, 2024	< 15 ng/L	Washington St. #1A (Washington St. Wellfield)
November 5, 2024	< 15 ng/L	Waterside Rd. #2 (Waterside Rd. Wellfield)
October 23, 2024	< 15 ng/L	Church St. NPT #1 (Church St. NPT Wellfield)
October 23, 2024	< 15 ng/L	Meade Dr. #3 (Meade Dr. Wellfield)
October 23, 2024	< 15 ng/L	Reservoir Ave. #1A (Reservoir Ave. Wellfield)
October 22, 2024	< 15 ng/L	Broadway #3 (Broadway Wellfield)
October 22, 2024	< 15 ng/L	Mill Lane #15A (Mill Lane Wellfield)
October 22, 2024	< 15 ng/L	West Neck Rd. #1 & #2 (West Neck Rd. Wellfield)
October 22, 2024	< 15 ng/L	Woodchuck Hollow Rd. #3 (Woodchuck Hollow Rd. Wellfield)
October 22, 2024	< 15 ng/L	Peconic St. #2 (Peconic St. Wellfield)
October 15, 2024	< 15 ng/L	Harbor Rd. #1A (Harbor Rd. Wellfield)
October 15, 2024	< 15 ng/L	Mayfair Dr. #2 (Mayfair Dr. Wellfield)
October 15, 2024	< 15 ng/L	Jennings Rd. #2 (Jennings Rd. Wellfield)
October 8, 2024	< 15 ng/L	Nicolls Rd. #3 (Nicolls Rd. Wellfield)
October 8, 2024	< 15 ng/L	Oval Dr. #3 (Oval Dr. Wellfield)
October 8, 2024	< 15 ng/L	Liberty St. #2 (Liberty St. Wellfield)
October 8, 2024	< 15 ng/L	Tower St. #1 (Tower St. Wellfield)
October 1, 2024	< 15 ng/L	Commercial Blvd. #3 (Commercial Blvd. Wellfield)
October 1, 2024	< 15 ng/L	Dolores Place #1 (Dolores Place Wellfield)
October 1, 2024	< 15 ng/L	Moffitt Blvd. #1 (Moffitt Blvd. Wellfield)
October 1, 2024	< 15 ng/L	5th Ave. #34 (5th Ave. Wellfield)
October 1, 2024	< 15 ng/L	Carleton Ave. #1 (Carleton Ave. Wellfield)
October 1, 2024	< 15 ng/L	Easton St. #3 (Easton St. Wellfield)
September 24, 2024	< 15 ng/L	East Forks Rd. #5 (East Forks Rd. Wellfield)
September 24, 2024	< 15 ng/L	Astor Ave. #2A (Astor Ave. Wellfield)
September 24, 2024	< 15 ng/L	Edgewood Ave. #3 (Edgewood Ave. Int. Wellfield)
September 24, 2024	< 15 ng/L	Edgewood Ave. #4 & #1A (Edgewood Ave. Hi Wellfield)
September 18, 2024	< 15 ng/L	Ruth Blvd. #3 (Ruth Blvd. Wellfield)
September 18, 2024	< 15 ng/L	Samuel St. #3 (Samuel St. Wellfield)
September 18, 2024	4.3 ng/L	St. Johnsland Road #1 (St. Johnsland Road Wellfield)
September 18, 2024	< 15 ng/L	Wicks Rd. #3 (Wicks Rd. Wellfield)
September 17, 2024	< 15 ng/L	Oak St. #3 (Oak St. Wellfield)
September 17, 2024	< 15 ng/L	Oxhead Rd. #3 (Oxhead Rd. Wellfield)
September 17, 2024	< 15 ng/L	Sherry Dr. #1 (Sherry Dr. Wellfield)
September 17, 2024	< 15 ng/L	Stem Lane #2 (Stem Lane Wellfield)
September 11, 2024	< 15 ng/L	Falcon Dr. #1 (Falcon Dr. Wellfield)
September 11, 2024	< 15 ng/L	New Mill Rd. #1 (New Mill Rd. Wellfield)
September 11, 2024	< 15 ng/L	New York Ave. #4 (New York Ave. Wellfield)
September 10, 2024	< 15 ng/L	Montauk Hwy. #4 (Montauk Hwy. Wellfield)
September 10, 2024	< 15 ng/L	Union Blvd. #1A (Union Blvd. Wellfield)
September 9, 2024	< 15 ng/L	Douglas Ave. #1 (Douglas Ave. Wellfield)
September 9, 2024	< 15 ng/L	Locust Ave. #4 (Locust Ave. Wellfield)
September 9, 2024	< 15 ng/L	Peconic St. #2 (Peconic St. Wellfield)
September 4, 2024	< 15 ng/L	Pleasant Ave. #4 (Pleasant Ave. Int. Wellfield)
September 4, 2024	< 15 ng/L	Wheeler Rd. #4 & #5 (Wheeler Rd. Wellfield)
September 4, 2024	< 15 ng/L	Cross Hwy. #1 (Cross Hwy. Wellfield)
September 4, 2024	< 15 ng/L	Pleasant Ave. #3 (Pleasant Ave. Hi Wellfield)
September 4, 2024	< 15 ng/L	N. Washington Ave. #2 (North Washington Ave. Wellfield)
September 3, 2024	< 15 ng/L	Locust Dr. #3 (Locust Dr. Wellfield)
September 3, 2024	< 15 ng/L	Sunrise Hwy. #3 (Sunrise Hwy. Wellfield)
September 3, 2024	< 15 ng/L	Thomas Ave. #2 (Thomas Ave. Wellfield)
September 3, 2024	< 15 ng/L	3rd Ave. #4 (3rd Ave. Wellfield)
August 20, 2024	< 15 ng/L	Development Dr. #1 (Development Dr. Wellfield)
August 20, 2024	4.4 ng/L	Daniel Webster Dr. #1 (Daniel Webster Dr. Wellfield)
August 20, 2024	< 15 ng/L	Henry Clay Dr. #2 (Henry Clay Dr. Wellfield)
August 20, 2024	< 15 ng/L	Mud Rd. #2 (Mud Rd. Wellfield)
August 16, 2024	< 15 ng/L	Kayron Dr. #1A (Kayron Dr. Wellfield)
August 13, 2024	< 15 ng/L	Division St. #3 (Division St. Wellfield)
August 13, 2024	< 15 ng/L	Oakview Hwy. #1A (Oakview Hwy. Wellfield)
August 13, 2024	< 15 ng/L	Accabonac Rd. #1 (Accabonac Rd. Wellfield)
July 31, 2024	< 15 ng/L	Old North Rd. #1A (Old North Rd. Wellfield)
July 31, 2024	< 15 ng/L	Oak Ave. #1 (Oak Ave. Wellfield)
July 31, 2024	< 15 ng/L	Mill Lane Peconic #1 (Mill Lane Peconic Wellfield)
July 30, 2024	< 15 ng/L	Greenbelt Pkwy. #1A (Greenbelt Pkwy. Wellfield)
July 30, 2024	< 15 ng/L	Blue Point Rd. #2 (Blue Point Rd. Wellfield)
July 23, 2024	< 15 ng/L	Lambert Ave. Mastic #2 (Lambert Ave. Mastic Wellfield)
July 23, 2024	< 15 ng/L	Main St. #2 (Main St. Wellfield)
July 23, 2024	< 15 ng/L	Bay Dr. #1 (Bay Dr. Wellfield)
July 16, 2024	< 15 ng/L	Albin Ave. #9A (Albin Ave. Wellfield)
July 16, 2024	< 15 ng/L	Lafayette Rd. #2A (Lafayette Rd. Wellfield)
July 16, 2024	< 15 ng/L	Harvest Lane #3 (Harvest Lane Wellfield)
July 10, 2024	< 15 ng/L	Lincoln Ave. #2 (Lincoln Ave. Wellfield)
July 10, 2024	< 15 ng/L	Waterworks Rd. #1 (Waterworks Rd. Wellfield)
July 10, 2024	< 15 ng/L	Capitol Ct. #2 (Capitol Ct. Wellfield)
July 9, 2024	< 15 ng/L	Kenneys Rd. #1 (Kenneys Rd. Wellfield)
July 9, 2024	< 15 ng/L	Middle Rd. Southold #1 (Middle Rd. Southold Wellfield)
July 9, 2024	< 15 ng/L	Middle Rd. Peconic #2&4 (Middle Rd. Peconic Wellfield)
July 2, 2024	< 15 ng/L	Boyle Rd. Port Jeff #1 (Boyle Rd. Port Jeff Wellfield)
July 2, 2024	10.2 ng/L	Dare Rd. #2 (Dare Rd. Wellfield)
July 2, 2024	< 15 ng/L	Hawkins Rd. #2 (Hawkins Rd. Wellfield)
July 2, 2024	11.3 ng/L	Boyle Rd. South #1 (Boyle Rd. South Wellfield)
June 28, 2024	< 15 ng/L	Ackerly Pond Lane #2 (Ackerly Pond Lane Wellfield)
June 28, 2024	< 15 ng/L	Pleasant Ave. #4 (Pleasant Ave. Int. Wellfield)
June 28, 2024	< 15 ng/L	Old Dock Rd. #1 (Old Dock Rd. Wellfield)
May 30, 2024	< 15 ng/L	Cornell Dr. #2 (Cornell Dr. Wellfield)
May 30, 2024	< 15 ng/L	Kings Park Rd. #3 (Kings Park Rd. Wellfield)
May 30, 2024	< 15 ng/L	Lawrence Rd. #1A (Lawrence Rd. Wellfield)
May 30, 2024	< 15 ng/L	Sunken Meadow State Park #1 (Sunken Meadow State Park Wellfield)
May 29, 2024	< 15 ng/L	Ruth Blvd. #3 (Ruth Blvd. Wellfield)
May 29, 2024	< 15 ng/L	Schuyler Dr. #1A (Schuyler Dr. Wellfield)
May 29, 2024	< 15 ng/L	Blue Spruce Lane #2A (Blue Spruce Lane Wellfield)
May 29, 2024	< 15 ng/L	Carlson Ave. #7 (Carlson Ave. Wellfield)
May 29, 2024	4.1 ng/L	Hurtin Blvd. #1 (Hurtin Blvd. Wellfield)
May 29, 2024	< 15 ng/L	Liberty St. #2 (Liberty St. Wellfield)
May 29, 2024	< 15 ng/L	Walter Ct. #2 (Walter Ct. Wellfield)
May 29, 2024	< 15 ng/L	Meehan Lane #1A (Meehan Lane Wellfield)
May 22, 2024	< 15 ng/L	Oval Dr. #3 (Oval Dr. Wellfield)
May 22, 2024	< 15 ng/L	Virginia Ave. #2 (Virginia Ave. Wellfield)
May 22, 2024	8.9 ng/L	Pierson St. #3 (Pierson St. Wellfield)
May 22, 2024	< 15 ng/L	Townline Rd. #2 (Townline Rd. Wellfield)
May 21, 2024	< 15 ng/L	China Rd. #2 (China Rd. Wellfield)
May 21, 2024	< 15 ng/L	Church St. BOH #3 (Church St. BOH Wellfield)
May 21, 2024	< 15 ng/L	Church St. HOL #3 (Church St. HOL Wellfield)
May 21, 2024	< 15 ng/L	Lakeview Ave. #4 (Lakeview Ave. Wellfield)
May 15, 2024	< 15 ng/L	Strathmore Ct. Dr. #2 (Strathmore Ct. Dr. Wellfield)
May 15, 2024	< 15 ng/L	Mt. Sinai Coram Rd. #1 (Mount Sinai Coram Rd. Wellfield)
May 15, 2024	< 15 ng/L	Mount Sinai Coram Rd. South #1 (Mount Sinai Coram Rd. South Wellfield)
May 14, 2024	< 15 ng/L	Nicolls Rd. #3 (Nicolls Rd. Wellfield)
May 14, 2024	< 15 ng/L	Middleville Rd. #2 (Middleville Rd. Wellfield)
May 14, 2024	< 15 ng/L	Wayne Ct. #1 (Wayne Ct. Wellfield)
May 13, 2024	< 15 ng/L	Gordon Ave. #2 (Gordon Ave. Wellfield)
May 13, 2024	< 15 ng/L	Broadway #3 (Broadway Wellfield)
May 9, 2024	< 15 ng/L	Bayview Walk #2 (Bayview Walk Wellfield)
May 8, 2024	< 15 ng/L	Albany Ave. #5A (Albany Ave. Wellfield)
May 8, 2024	< 15 ng/L	Great Neck Rd. #3 (Great Neck Rd. Wellfield)
May 8, 2024	< 15 ng/L	Hollywood Place #1 (Hollywood Place Wellfield)
May 7, 2024	< 15 ng/L	Harbor Rd. #1A (Harbor Rd. Wellfield)
May 7, 2024	< 15 ng/L	Laurel Hill Rd. #1 (Laurel Hill Rd. Wellfield)
May 7, 2024	< 15 ng/L	Meade Dr. #3 (Meade Dr. Wellfield)
May 7, 2024	< 15 ng/L	Washington St. #1A (Washington St. Wellfield)
May 7, 2024	< 15 ng/L	Waterside Rd. #2 (Waterside Rd. Wellfield)
April 30, 2024	< 15 ng/L	Church St. NPT #1 (Church St. NPT Wellfield)
April 30, 2024	< 15 ng/L	Flower Hill Rd. #3 (Flower Hill Rd. Wellfield)
April 30, 2024	< 15 ng/L	Reservoir Ave. #1A (Reservoir Ave. Wellfield)
April 29, 2024	< 15 ng/L	Mill Lane #15A (Mill Lane Wellfield)
April 29, 2024	< 15 ng/L	West Neck Rd. #1 & #2 (West Neck Rd. Wellfield)
April 29, 2024	< 15 ng/L	Tower St. #1 (Tower St. Wellfield)
April 23, 2024	< 15 ng/L	Astor Ave. #2A (Astor Ave. Wellfield)
April 22, 2024	< 15 ng/L	Mayfair Dr. #2 (Mayfair Dr. Wellfield)
April 2, 2024	< 15 ng/L	Commercial Blvd. #3 (Commercial Blvd. Wellfield)
April 2, 2024	< 15 ng/L	Dolores Place #1 (Dolores Place Wellfield)
April 2, 2024	< 15 ng/L	Thomas Ave. #2 (Thomas Ave. Wellfield)
April 2, 2024	< 15 ng/L	Carleton Ave. #1 (Carleton Ave. Wellfield)
April 2, 2024	< 15 ng/L	Easton St. #3 (Easton St. Wellfield)
March 26, 2024	< 15 ng/L	East Forks Rd. #5 (East Forks Rd. Wellfield)
March 26, 2024	< 15 ng/L	Edgewood Ave. #3 (Edgewood Ave. Int. Wellfield)
March 26, 2024	< 15 ng/L	Edgewood Ave. #4 & #1A (Edgewood Ave. Hi Wellfield)
March 20, 2024	< 15 ng/L	Douglas Ave. #1 (Douglas Ave. Wellfield)
March 20, 2024	4.8 ng/L	St. Johnsland Road #1 (St. Johnsland Road Wellfield)
March 20, 2024	< 15 ng/L	Wheeler Rd. #4 & #5 (Wheeler Rd. Wellfield)
March 20, 2024	< 15 ng/L	Wicks Rd. #3 (Wicks Rd. Wellfield)
March 19, 2024	< 15 ng/L	Oak St. #3 (Oak St. Wellfield)
March 19, 2024	4.1 ng/L	Oxhead Rd. #3 (Oxhead Rd. Wellfield)
March 19, 2024	< 15 ng/L	Sherry Dr. #1 (Sherry Dr. Wellfield)
March 19, 2024	< 15 ng/L	Stem Lane #2 (Stem Lane Wellfield)
March 13, 2024	< 15 ng/L	5th Ave. #34 (5th Ave. Wellfield)
March 13, 2024	< 15 ng/L	Falcon Dr. #1 (Falcon Dr. Wellfield)
March 13, 2024	< 15 ng/L	New Mill Rd. #1 (New Mill Rd. Wellfield)
March 13, 2024	< 15 ng/L	New York Ave. #4 (New York Ave. Wellfield)
March 12, 2024	< 15 ng/L	Raleigh Lane #1 (Raleigh Lane Wellfield)
March 12, 2024	< 15 ng/L	Moffitt Blvd. #1 (Moffitt Blvd. Wellfield)
March 12, 2024	< 15 ng/L	Montauk Hwy. #4 (Montauk Hwy. Wellfield)
March 12, 2024	< 15 ng/L	Union Blvd. #1A (Union Blvd. Wellfield)
March 6, 2024	< 15 ng/L	Samuel St. #3 (Samuel St. Wellfield)
March 6, 2024	< 15 ng/L	Pleasant Ave. #3 (Pleasant Ave. Hi Wellfield)
March 6, 2024	< 15 ng/L	N. Washington Ave. #2 (North Washington Ave. Wellfield)
March 5, 2024	< 15 ng/L	Locust Dr. #3 (Locust Dr. Wellfield)
March 5, 2024	< 15 ng/L	Sunrise Hwy. #3 (Sunrise Hwy. Wellfield)
March 5, 2024	< 15 ng/L	3rd Ave. #4 (3rd Ave. Wellfield)
March 5, 2024	< 15 ng/L	Locust Ave. #4 (Locust Ave. Wellfield)
February 21, 2024	< 15 ng/L	Development Dr. #1 (Development Dr. Wellfield)
February 21, 2024	5 ng/L	Daniel Webster Dr. #1 (Daniel Webster Dr. Wellfield)
February 21, 2024	< 15 ng/L	Henry Clay Dr. #2 (Henry Clay Dr. Wellfield)
February 21, 2024	< 15 ng/L	Mud Rd. #2 (Mud Rd. Wellfield)
February 21, 2024	8.3 ng/L	Boyle Rd. South #1 (Boyle Rd. South Wellfield)
February 6, 2024	< 15 ng/L	Cross Hwy. #1 (Cross Hwy. Wellfield)
February 6, 2024	< 15 ng/L	Division St. #3 (Division St. Wellfield)
February 6, 2024	< 15 ng/L	Oakview Hwy. #1A (Oakview Hwy. Wellfield)
February 6, 2024	< 15 ng/L	Accabonac Rd. #1 (Accabonac Rd. Wellfield)
January 31, 2024	< 15 ng/L	Lincoln Ave. #2 (Lincoln Ave. Wellfield)
January 31, 2024	< 15 ng/L	Waterworks Rd. #1 (Waterworks Rd. Wellfield)
January 31, 2024	< 15 ng/L	Capitol Ct. #2 (Capitol Ct. Wellfield)
January 30, 2024	< 15 ng/L	Old North Rd. #1A (Old North Rd. Wellfield)
January 30, 2024	< 15 ng/L	Oak Ave. #1 (Oak Ave. Wellfield)
January 30, 2024	< 15 ng/L	Mill Lane Peconic #1 (Mill Lane Peconic Wellfield)
January 23, 2024	< 15 ng/L	Kenneys Rd. #1 (Kenneys Rd. Wellfield)
January 23, 2024	< 15 ng/L	Middle Rd. Southold #1 (Middle Rd. Southold Wellfield)
January 23, 2024	< 15 ng/L	Middle Rd. Peconic #2&4 (Middle Rd. Peconic Wellfield)
January 17, 2024	< 15 ng/L	Albin Ave. #9A (Albin Ave. Wellfield)
January 17, 2024	< 15 ng/L	Lafayette Rd. #2A (Lafayette Rd. Wellfield)
January 17, 2024	< 15 ng/L	Harvest Lane #3 (Harvest Lane Wellfield)
January 10, 2024	3.9 ng/L	Greenbelt Pkwy. #1A (Greenbelt Pkwy. Wellfield)
January 10, 2024	< 15 ng/L	Kayron Dr. #1A (Kayron Dr. Wellfield)
January 10, 2024	< 15 ng/L	Blue Point Rd. #2 (Blue Point Rd. Wellfield)
January 9, 2024	< 15 ng/L	Lambert Ave. Mastic #2 (Lambert Ave. Mastic Wellfield)
January 9, 2024	< 15 ng/L	Main St. #2 (Main St. Wellfield)
January 9, 2024	< 15 ng/L	Bay Dr. #1 (Bay Dr. Wellfield)
January 3, 2024	< 15 ng/L	Boyle Rd. Port Jeff #1 (Boyle Rd. Port Jeff Wellfield)
January 3, 2024	4.2 ng/L	Dare Rd. #2 (Dare Rd. Wellfield)
January 3, 2024	< 15 ng/L	Hawkins Rd. #2 (Hawkins Rd. Wellfield)
December 21, 2023	< 15 ng/L	North Country Rd. #2 (North Country Rd. Wellfield)
December 21, 2023	< 15 ng/L	Meehan Lane #1A (Meehan Lane Wellfield)
November 30, 2023	< 15 ng/L	Traffic Walk #2A (Traffic Walk Wellfield)
November 30, 2023	< 15 ng/L	County Rd. 31 #2 (County Rd. 31 Wellfield)
November 29, 2023	< 15 ng/L	Bay Shore Rd. #1 (Bay Shore Rd. Wellfield)
November 29, 2023	< 15 ng/L	Bellmore Ave. #4 (Bellmore Ave. Wellfield)
November 29, 2023	< 15 ng/L	Fisher Ave. #3 (Fisher Ave. Wellfield)
November 29, 2023	< 15 ng/L	41st St. #4 (41st St. Wellfield)
November 29, 2023	< 15 ng/L	Virginia Ave. #2 (Virginia Ave. Wellfield)
November 29, 2023	< 15 ng/L	Hurtin Blvd. #1 (Hurtin Blvd. Wellfield)
November 28, 2023	< 15 ng/L	Point of Woods #2A (Point of Woods Wellfield)
November 28, 2023	< 15 ng/L	Fish Rd. #1 (Fish Rd. Wellfield)
November 28, 2023	< 15 ng/L	Knight St. #7 (Knight St. Wellfield)
November 28, 2023	< 15 ng/L	Middle Country Rd #2 (Middle Country Rd. Wellfield)
November 28, 2023	< 15 ng/L	Fish Rd. #2 (Fish Rd. Int. Wellfield)
November 21, 2023	< 15 ng/L	Fishermans Path #2 (Fishermans Path Wellfield)
November 21, 2023	< 15 ng/L	Patchogue Yaphank Rd. #1 (Patchogue Yaphank Rd. Wellfield)
November 21, 2023	< 15 ng/L	Bayview Walk #2 (Bayview Walk Wellfield)
November 21, 2023	< 15 ng/L	Bailey Rd. #2 (Bailey Rd. Wellfield)
November 21, 2023	6.5 ng/L	William Floyd Pkwy. #3A (William Floyd Pkwy. Wellfield)
November 21, 2023	29.1 ng/L	Station Rd. #3A (Station Rd. Int. Wellfield)
November 16, 2023	< 15 ng/L	Cedar Ct. #2 (Cedar Ct. Wellfield)
November 16, 2023	< 15 ng/L	Center Walk #3 (Center Walk Wellfield)
November 16, 2023	< 15 ng/L	Central Walk # 1A (Central Walk (FHBR) Wellfield)
November 16, 2023	< 15 ng/L	Bay Walk #2A (Bay Walk Wellfield)
November 16, 2023	< 15 ng/L	Sandy Walk #1 (Sandy Walk Wellfield)
November 14, 2023	< 15 ng/L	Water Rd. #1 (Water Rd. Wellfield)
November 14, 2023	< 15 ng/L	Tower Hill Rd. #3A (Tower Hill Rd. Wellfield)
November 14, 2023	< 15 ng/L	Radio Ave. #1A (Radio Ave. Wellfield)
November 8, 2023	< 15 ng/L	Watch Hill #1A (Watch Hill Wellfield)
November 8, 2023	5 ng/L	Pierson St. #3 (Pierson St. Wellfield)
November 8, 2023	< 15 ng/L	Townline Rd. #2 (Townline Rd. Wellfield)
November 7, 2023	< 15 ng/L	East Walk #3 (East Walk Wellfield)
November 7, 2023	< 15 ng/L	Strathmore Ct. Dr. #2 (Strathmore Ct. Dr. Wellfield)
November 7, 2023	< 15 ng/L	Mt. Sinai Coram Rd. #1 (Mount Sinai Coram Rd. Wellfield)
November 7, 2023	< 15 ng/L	Mount Sinai Coram Rd. South #1 (Mount Sinai Coram Rd. South Wellfield)
November 6, 2023	< 15 ng/L	Albany Ave. #5A (Albany Ave. Wellfield)
November 6, 2023	< 15 ng/L	Gordon Ave. #2 (Gordon Ave. Wellfield)
November 6, 2023	< 15 ng/L	Great Neck Rd. #3 (Great Neck Rd. Wellfield)
October 30, 2023	< 15 ng/L	Islands End #9 & 6A (Islands End Wellfield)
October 30, 2023	< 15 ng/L	Flint Lane #1 (Flint Lane Wellfield)
October 25, 2023	< 15 ng/L	Browns Hills Rd. #5 (Browns Hills Rd. Wellfield)
October 25, 2023	< 15 ng/L	Brecknock Hall #2 (Brecknock HALL Wellfield)
October 24, 2023	< 15 ng/L	Rocky Point Rd. #5 & #2 (Rocky Point Rd. Wellfield)
October 24, 2023	< 15 ng/L	S. Howell Ave. #1 (South Howell Avenue Wellfield)
October 18, 2023	11 ng/L	Station Rd. #2A (Station Rd. LO Wellfield)
October 18, 2023	5.2 ng/L	Sy Ct. #3 (Sy Ct. Wellfield)
October 18, 2023	15.9 ng/L	Hallock Ave. #2 (Hallock Ave. Wellfield)
October 18, 2023	< 15 ng/L	Eastwood Blvd. #3 (Eastwood Blvd. Wellfield)
October 17, 2023	< 15 ng/L	Margin Dr. East #5 (Margin Dr. East Wellfield)
October 17, 2023	< 15 ng/L	Head of the Neck Rd. #4 (Head of the Neck Rd. Wellfield)
October 17, 2023	< 15 ng/L	Main St Yaphank #1 (Main St Yaphank Wellfield)
October 17, 2023	< 15 ng/L	Foxcroft Lane #1A (Foxcroft Lane Wellfield)
October 11, 2023	6.5 ng/L	Fairmont Ave (Med) #1 (Fairmont Ave (Med) Int. Wellfield)
October 11, 2023	< 15 ng/L	Bicycle Path #2 (Bicycle Path Wellfield)
October 11, 2023	< 15 ng/L	Fairmont Ave (Med) #3 (Fairmont Ave (Med) Hi Wellfield)
October 10, 2023	< 15 ng/L	South Davis Ave. #1 (South Davis Ave. Wellfield)
October 10, 2023	< 15 ng/L	Fresh Pond Road #1 (Fresh Pond Road Wellfield)
October 4, 2023	< 15 ng/L	Inlet Dr. #1A (Inlet Dr. Wellfield)
October 4, 2023	4.3 ng/L	North Road #1 & #2 (North Rd. Wellfield)
October 4, 2023	< 15 ng/L	Laurel Lake #2B (Laurel Lake Wellfield)
October 4, 2023	< 15 ng/L	Sound Ave. #1A (Sound Ave. Wellfield)
October 3, 2023	< 15 ng/L	Meetinghouse Rd. #22 (Meetinghouse Rd. Wellfield)
October 3, 2023	< 15 ng/L	Malloy Dr. #1 (Malloy Dr. Wellfield)
October 3, 2023	< 15 ng/L	Gus Guerrera #3 (Gus Guerrera Wellfield)
October 2, 2023	< 15 ng/L	West Neck Rd. Shelter Island #5 (West Neck Rd. Shelter Island Wellfield)
October 2, 2023	< 15 ng/L	Yoco Rd. #1A (Yoco Rd. Wellfield)
September 26, 2023	< 15 ng/L	Greene Ave. #7A (Greene Ave. Wellfield)
September 26, 2023	< 15 ng/L	Lambert Ave. Cop #2 (Lambert Ave. Cop Wellfield)
September 25, 2023	< 15 ng/L	Gun Club Rd. #3 (Gun Club Rd. Wellfield)
September 25, 2023	< 15 ng/L	Daly Road #1 (Daly Road Wellfield)
September 25, 2023	< 15 ng/L	South Spur Dr. #3 & #1 (South Spur Dr. Wellfield)
September 25, 2023	< 15 ng/L	Elwood Rd. #1 (Elwood Rd. Wellfield)
September 19, 2023	< 15 ng/L	The Longway #1A (The Longway Wellfield)
September 19, 2023	< 15 ng/L	Alvah Lane #1 (Alvah Lane Wellfield)
September 19, 2023	< 15 ng/L	Herricks Lane #2 (Herricks Lane Wellfield)
September 18, 2023	< 15 ng/L	Emjay Blvd. #3A (Emjay Blvd. Wellfield)
September 18, 2023	< 15 ng/L	McKay Rd. #1 (McKay Rd. Wellfield)
September 18, 2023	< 15 ng/L	Old Country Rd. #3 (Old Country Rd. Wellfield)
September 18, 2023	< 15 ng/L	Sunset Dr. #3A (Sunset Dr. Wellfield)
September 18, 2023	< 15 ng/L	Quoque Riverhead Rd. #1 (Quogue Riverhead Rd. Wellfield)
September 13, 2023	< 15 ng/L	Dune Rd. #1 (Dune Rd. Wellfield)
September 13, 2023	< 15 ng/L	Old Neck Rd. #2 (Old Neck Rd. Wellfield)
September 13, 2023	< 15 ng/L	Seatuck Ave. #2 (Seatuck Ave. Wellfield)
September 13, 2023	< 15 ng/L	Railroad Ave. #2 (Railroad Ave. Wellfield)
September 12, 2023	< 15 ng/L	Country Club #3 (Country Club Dr. Wellfield)
September 12, 2023	< 15 ng/L	Moriches Riverhead Rd. #1A (Moriches Riverhead Rd. Wellfield)
September 12, 2023	< 15 ng/L	County Rd. 111 #1 (County Rd. 111 Wellfield)
September 12, 2023	< 15 ng/L	West Prospect St. #4 & #5 (West Prospect St. Wellfield)
September 11, 2023	6.3 ng/L	Montauk Point State Blvd. #1A & #2 (Montauk Point State Blvd. Wellfield)
September 11, 2023	< 15 ng/L	Bulls Path #1 (Bulls Path Wellfield)
September 6, 2023	< 15 ng/L	North Magee St. #4 (North Magee St. Wellfield)
September 6, 2023	< 15 ng/L	Lumber Lane #5 (Lumber Lane Wellfield)
September 6, 2023	< 15 ng/L	Scuttlehole Rd. #3 (Scuttlehole Rd. Wellfield)
September 6, 2023	< 15 ng/L	Roses Grove Rd. #1 (Roses Grove Rd. Wellfield)
September 5, 2023	< 15 ng/L	Long Springs Rd. #6 & #4B (Long Springs Rd. Wellfield)
September 5, 2023	< 15 ng/L	Edge of Woods Rd. #3 (Edge of Woods Rd. Wellfield)
September 5, 2023	< 15 ng/L	Deerfield Road #1 (Deerfield Road Wellfield)
September 3, 2023	< 15 ng/L	Blank Lane #1 (Blank Lane Wellfield)
August 29, 2023	< 15 ng/L	12th St. #4 (12th St. Wellfield)
August 29, 2023	< 15 ng/L	Shady Lane #1 (Shady Lane Wellfield)
August 16, 2023	< 15 ng/L	Gazza Blvd. #2 (Gazza Blvd. Wellfield)
August 16, 2023	< 15 ng/L	Point of Woods #2A (Point of Woods Wellfield)
August 16, 2023	< 15 ng/L	Traffic Walk #2A (Traffic Walk Wellfield)
August 16, 2023	< 15 ng/L	Dune Rd. #1 (Dune Rd. Wellfield)
August 15, 2023	< 15 ng/L	Spring Close Hwy. #1A (Spring Close Hwy. Wellfield)
August 15, 2023	7.4 ng/L	Montauk Point State Blvd. #1A & #2 (Montauk Point State Blvd. Wellfield)
August 9, 2023	< 15 ng/L	Barton Ave. #3 (Barton Ave. Wellfield)
August 9, 2023	< 15 ng/L	College Rd. #4 & 2 (College Rd. Wellfield)
August 9, 2023	< 15 ng/L	Horseblock Rd. #3 (Horseblock Rd. Hi. Wellfield)
August 9, 2023	9.2 ng/L	Horseblock Rd. #2 (Horseblock Rd. Int. Wellfield)
August 8, 2023	< 15 ng/L	Morris Ave. #3 (Morris Ave. Wellfield)
August 8, 2023	< 15 ng/L	Peconic Ave. Med. #1 (Peconic Ave. Med. Wellfield)
August 8, 2023	< 15 ng/L	Maple Ave. #1 (Maple Ave. Wellfield)
August 8, 2023	< 15 ng/L	Jayne Blvd. #4 (Jayne Blvd. Wellfield)
July 26, 2023	< 15 ng/L	Belle Terre Rd. #3 (Belle Terre Rd. Wellfield)
July 26, 2023	< 15 ng/L	Chestnut St. #2 (Chestnut St. Wellfield)
July 26, 2023	< 15 ng/L	Crystal Brook Hollow Rd. #3 (Crystal Brook Hollow Rd. Wellfield)
July 26, 2023	10.4 ng/L	Wheat Path #1 (Wheat Path Wellfield)
July 25, 2023	< 15 ng/L	August Rd. #4A (August Rd. Wellfield)
July 25, 2023	< 15 ng/L	Brook Ave. #1A (Brook Ave. Wellfield)
July 25, 2023	< 15 ng/L	Circle Dr. #3A (Circle Dr. Wellfield)
July 25, 2023	< 15 ng/L	Industry Ct. #1 (Industry Ct. Wellfield)
July 25, 2023	< 15 ng/L	Landscape Dr. #1 (Landscape Dr. Wellfield)
July 24, 2023	< 15 ng/L	Edison Dr. #1 (Edison Dr. Wellfield)
July 19, 2023	< 15 ng/L	Plymouth St. #3A (Plymouth St. Wellfield)
July 19, 2023	< 15 ng/L	Wyandanch Ave. #2A (Wyandanch Ave. Wellfield)
July 19, 2023	< 15 ng/L	Carrol St. #3 (Carrol St. Wellfield)
July 19, 2023	< 15 ng/L	American Blvd. #1 (American Blvd. Wellfield)
July 19, 2023	< 15 ng/L	Spinney Rd. #3 (Spinney Rd. Wellfield)
July 19, 2023	< 15 ng/L	Evergreen Dr. #1A (Evergreen Dr. Wellfield)
July 19, 2023	3.2 ng/L	Tuckahoe Rd. #1 (Tuckahoe Rd. Wellfield)
July 18, 2023	< 15 ng/L	Stephens Hands Path #1 (Stephens Hands Wellfield)
July 18, 2023	< 15 ng/L	Townline Rd. EH #3 (Townline Rd. EH Wellfield)
July 18, 2023	< 15 ng/L	Sag Harbor Tpke. #2 (Sag Harbor Tpke. Wellfield)
July 12, 2023	< 15 ng/L	Bridgehampton Rd. #4&5A (Bridgehampton Rd. Wellfield)
July 12, 2023	< 15 ng/L	Fairmont Ave. #1A (Fairmont Ave. Wellfield)
July 12, 2023	3.2 ng/L	Farrington Rd. #1A (Farrington Rd. Wellfield)
July 11, 2023	8.8 ng/L	Shady Lane #1 (Shady Lane Wellfield)
July 11, 2023	< 15 ng/L	Flamingo Ave. #1A (Flamingo Ave. Wellfield)
July 11, 2023	< 15 ng/L	Flanders Rd. #2 (Flanders Rd. Wellfield)
July 5, 2023	< 15 ng/L	Adams Ave. #1 (Adams Ave. Wellfield)
July 5, 2023	< 15 ng/L	Sawyer Ave. #4 (Sawyer Ave. Wellfield)
July 5, 2023	10.4 ng/L	Smith St. #8 (Smith St. Wellfield)
July 5, 2023	< 15 ng/L	Tenety Ave. #3 (Tenety Ave. Wellfield)
June 26, 2023	< 15 ng/L	South Spur Dr. #3 & #1 (South Spur Dr. Wellfield)
May 22, 2023	< 15 ng/L	12th St. #4 (12th St. Wellfield)
May 22, 2023	< 15 ng/L	Station Rd. #2A (Station Rd. LO Wellfield)
May 17, 2023	< 15 ng/L	Fishermans Path #2 (Fishermans Path Wellfield)
May 17, 2023	< 15 ng/L	Bay Walk #2A (Bay Walk Wellfield)
May 16, 2023	< 15 ng/L	Patchogue Yaphank Rd. #1 (Patchogue Yaphank Rd. Wellfield)
May 16, 2023	< 15 ng/L	Bailey Rd. #2 (Bailey Rd. Wellfield)
May 16, 2023	4.6 ng/L	William Floyd Pkwy. #3A (William Floyd Pkwy. Wellfield)
May 16, 2023	14.6 ng/L	Station Rd. #3A (Station Rd. Int. Wellfield)
May 15, 2023	< 15 ng/L	North Road #1 & #2 (North Rd. Wellfield)
May 11, 2023	< 15 ng/L	Cedar Ct. #2 (Cedar Ct. Wellfield)
May 11, 2023	< 15 ng/L	Center Walk #3 (Center Walk Wellfield)
May 11, 2023	< 15 ng/L	Central Walk # 1A (Central Walk (FHBR) Wellfield)
May 11, 2023	< 15 ng/L	East Walk #3 (East Walk Wellfield)
May 10, 2023	< 15 ng/L	Sandy Walk #1 (Sandy Walk Wellfield)
May 10, 2023	< 15 ng/L	Watch Hill #1A (Watch Hill Wellfield)
May 9, 2023	< 15 ng/L	Foxcroft Lane #1A (Foxcroft Lane Wellfield)
May 9, 2023	< 15 ng/L	Fish Rd. #1 (Fish Rd. Wellfield)
May 9, 2023	< 15 ng/L	Knight St. #7 (Knight St. Wellfield)
May 9, 2023	< 15 ng/L	Middle Country Rd #2 (Middle Country Rd. Wellfield)
May 9, 2023	< 15 ng/L	Bulls Path #1 (Bulls Path Wellfield)
May 9, 2023	< 15 ng/L	Fish Rd. #2 (Fish Rd. Int. Wellfield)
May 8, 2023	< 15 ng/L	Islands End #9 & 6A (Islands End Wellfield)
May 8, 2023	< 15 ng/L	S. Howell Ave. #1 (South Howell Avenue Wellfield)
May 3, 2023	< 15 ng/L	Bay Shore Rd. #1 (Bay Shore Rd. Wellfield)
May 3, 2023	< 15 ng/L	Bellmore Ave. #4 (Bellmore Ave. Wellfield)
May 3, 2023	< 15 ng/L	Fisher Ave. #3 (Fisher Ave. Wellfield)
May 3, 2023	< 15 ng/L	41st St. #4 (41st St. Wellfield)
May 2, 2023	< 15 ng/L	North Country Rd. #2 (North Country Rd. Wellfield)
May 2, 2023	< 15 ng/L	Water Rd. #1 (Water Rd. Wellfield)
May 2, 2023	< 15 ng/L	Tower Hill Rd. #3A (Tower Hill Rd. Wellfield)
May 2, 2023	< 15 ng/L	Radio Ave. #1A (Radio Ave. Wellfield)
April 25, 2023	< 15 ng/L	Margin Dr. East #5 (Margin Dr. East Wellfield)
April 25, 2023	< 15 ng/L	Head of the Neck Rd. #4 (Head of the Neck Rd. Wellfield)
April 25, 2023	< 15 ng/L	Sy Ct. #3 (Sy Ct. Wellfield)
April 25, 2023	< 15 ng/L	Eastwood Blvd. #3 (Eastwood Blvd. Wellfield)
April 25, 2023	< 15 ng/L	Flint Lane #1 (Flint Lane Wellfield)
April 24, 2023	< 15 ng/L	Alvah Lane #1 (Alvah Lane Wellfield)
April 20, 2023	< 15 ng/L	Emjay Blvd. #3A (Emjay Blvd. Wellfield)
April 20, 2023	< 15 ng/L	Daly Road #1 (Daly Road Wellfield)
April 18, 2023	< 15 ng/L	The Longway #1A (The Longway Wellfield)
April 18, 2023	< 15 ng/L	Rocky Point Rd. #5 & #2 (Rocky Point Rd. Wellfield)
April 17, 2023	< 15 ng/L	Browns Hills Rd. #5 (Browns Hills Rd. Wellfield)
April 17, 2023	< 15 ng/L	Brecknock Hall #2 (Brecknock HALL Wellfield)
April 13, 2023	< 15 ng/L	West Neck Rd. Shelter Island #5 (West Neck Rd. Shelter Island Wellfield)
April 11, 2023	3 ng/L	Fairmont Ave (Med) #1 (Fairmont Ave (Med) Int. Wellfield)
April 11, 2023	< 15 ng/L	Main St Yaphank #1 (Main St Yaphank Wellfield)
April 11, 2023	< 15 ng/L	Hallock Ave. #2 (Hallock Ave. Wellfield)
April 11, 2023	< 15 ng/L	Bicycle Path #2 (Bicycle Path Wellfield)
April 11, 2023	< 15 ng/L	Fairmont Ave (Med) #3 (Fairmont Ave (Med) Hi Wellfield)
April 10, 2023	< 15 ng/L	South Davis Ave. #1 (South Davis Ave. Wellfield)
April 10, 2023	< 15 ng/L	Fresh Pond Road #1 (Fresh Pond Road Wellfield)
April 6, 2023	< 15 ng/L	Inlet Dr. #1A (Inlet Dr. Wellfield)
April 5, 2023	< 15 ng/L	Yoco Rd. #1A (Yoco Rd. Wellfield)
April 4, 2023	< 15 ng/L	Laurel Lake #2B (Laurel Lake Wellfield)
April 4, 2023	< 15 ng/L	Sound Ave. #1A (Sound Ave. Wellfield)
April 4, 2023	< 15 ng/L	Scuttlehole Rd. #3 (Scuttlehole Rd. Wellfield)
April 3, 2023	< 15 ng/L	Meetinghouse Rd. #22 (Meetinghouse Rd. Wellfield)
April 3, 2023	< 15 ng/L	Malloy Dr. #1 (Malloy Dr. Wellfield)
April 3, 2023	< 15 ng/L	Gus Guerrera #3 (Gus Guerrera Wellfield)
March 29, 2023	< 15 ng/L	Deerfield Road #1 (Deerfield Road Wellfield)
March 28, 2023	< 15 ng/L	Gun Club Rd. #3 (Gun Club Rd. Wellfield)
March 28, 2023	< 15 ng/L	McKay Rd. #1 (McKay Rd. Wellfield)
March 28, 2023	< 15 ng/L	Elwood Rd. #1 (Elwood Rd. Wellfield)
March 27, 2023	< 15 ng/L	Greene Ave. #7A (Greene Ave. Wellfield)
March 27, 2023	< 15 ng/L	Lambert Ave. Cop #2 (Lambert Ave. Cop Wellfield)
March 27, 2023	< 15 ng/L	Plymouth St. #3A (Plymouth St. Wellfield)
March 27, 2023	< 15 ng/L	Carrol St. #3 (Carrol St. Wellfield)
March 22, 2023	< 15 ng/L	Old Country Rd. #3 (Old Country Rd. Wellfield)
March 22, 2023	< 15 ng/L	Sunset Dr. #3A (Sunset Dr. Wellfield)
March 22, 2023	< 15 ng/L	Quoque Riverhead Rd. #1 (Quogue Riverhead Rd. Wellfield)
March 21, 2023	< 15 ng/L	County Rd. 31 #2 (County Rd. 31 Wellfield)
March 21, 2023	< 15 ng/L	Herricks Lane #2 (Herricks Lane Wellfield)
March 21, 2023	< 15 ng/L	Tuckahoe Rd. #1 (Tuckahoe Rd. Wellfield)
March 15, 2023	< 15 ng/L	Old Neck Rd. #2 (Old Neck Rd. Wellfield)
March 15, 2023	< 15 ng/L	Seatuck Ave. #2 (Seatuck Ave. Wellfield)
March 15, 2023	< 15 ng/L	Railroad Ave. #2 (Railroad Ave. Wellfield)
March 14, 2023	< 15 ng/L	Country Club #3 (Country Club Dr. Wellfield)
March 14, 2023	< 15 ng/L	County Rd. 111 #1 (County Rd. 111 Wellfield)
March 14, 2023	< 15 ng/L	West Prospect St. #4 & #5 (West Prospect St. Wellfield)
March 14, 2023	10.5 ng/L	Horseblock Rd. #2 (Horseblock Rd. Int. Wellfield)
March 8, 2023	< 15 ng/L	Moriches Riverhead Rd. #1A (Moriches Riverhead Rd. Wellfield)
March 8, 2023	4.1 ng/L	North Magee St. #4 (North Magee St. Wellfield)
March 8, 2023	< 15 ng/L	Lumber Lane #5 (Lumber Lane Wellfield)
March 8, 2023	< 15 ng/L	Roses Grove Rd. #1 (Roses Grove Rd. Wellfield)
March 7, 2023	< 15 ng/L	Long Springs Rd. #6 & #4B (Long Springs Rd. Wellfield)
March 7, 2023	< 15 ng/L	Edge of Woods Rd. #3 (Edge of Woods Rd. Wellfield)
March 7, 2023	< 15 ng/L	Blank Lane #1 (Blank Lane Wellfield)
February 27, 2023	< 15 ng/L	Wyandanch Ave. #2A (Wyandanch Ave. Wellfield)
February 27, 2023	10.7 ng/L	Wheat Path #1 (Wheat Path Wellfield)
February 21, 2023	< 15 ng/L	Spinney Rd. #3 (Spinney Rd. Wellfield)
February 21, 2023	< 15 ng/L	Evergreen Dr. #1A (Evergreen Dr. Wellfield)
February 14, 2023	10.8 ng/L	Morris Ave. #3 (Morris Ave. Wellfield)
February 14, 2023	< 15 ng/L	Peconic Ave. Med. #1 (Peconic Ave. Med. Wellfield)
February 14, 2023	< 15 ng/L	Maple Ave. #1 (Maple Ave. Wellfield)
February 14, 2023	< 15 ng/L	Jayne Blvd. #4 (Jayne Blvd. Wellfield)
February 7, 2023	< 15 ng/L	Barton Ave. #3 (Barton Ave. Wellfield)
February 7, 2023	< 15 ng/L	College Rd. #4 & 2 (College Rd. Wellfield)
February 7, 2023	< 15 ng/L	Horseblock Rd. #3 (Horseblock Rd. Hi. Wellfield)
January 31, 2023	< 15 ng/L	Flanders Rd. #2 (Flanders Rd. Wellfield)
January 30, 2023	< 15 ng/L	American Blvd. #1 (American Blvd. Wellfield)
January 24, 2023	< 15 ng/L	Tenety Ave. #3 (Tenety Ave. Wellfield)
January 24, 2023	< 15 ng/L	Belle Terre Rd. #3 (Belle Terre Rd. Wellfield)
January 24, 2023	< 15 ng/L	Crystal Brook Hollow Rd. #3 (Crystal Brook Hollow Rd. Wellfield)
January 23, 2023	< 15 ng/L	August Rd. #4A (August Rd. Wellfield)
January 23, 2023	< 15 ng/L	Brook Ave. #1A (Brook Ave. Wellfield)
January 23, 2023	< 15 ng/L	Circle Dr. #3A (Circle Dr. Wellfield)
January 23, 2023	< 15 ng/L	Industry Ct. #1 (Industry Ct. Wellfield)
January 23, 2023	< 15 ng/L	Landscape Dr. #1 (Landscape Dr. Wellfield)
January 18, 2023	< 15 ng/L	Spring Close Hwy. #1A (Spring Close Hwy. Wellfield)
January 18, 2023	< 15 ng/L	Stephens Hands Path #1 (Stephens Hands Wellfield)
January 18, 2023	< 15 ng/L	Townline Rd. EH #3 (Townline Rd. EH Wellfield)
January 18, 2023	< 15 ng/L	Sag Harbor Tpke. #2 (Sag Harbor Tpke. Wellfield)
January 10, 2023	< 15 ng/L	Bridgehampton Rd. #4&5A (Bridgehampton Rd. Wellfield)
January 10, 2023	< 15 ng/L	Flamingo Ave. #1A (Flamingo Ave. Wellfield)
January 9, 2023	< 15 ng/L	Fairmont Ave. #1A (Fairmont Ave. Wellfield)
January 9, 2023	3.3 ng/L	Farrington Rd. #1A (Farrington Rd. Wellfield)
January 9, 2023	< 15 ng/L	Edison Dr. #1 (Edison Dr. Wellfield)
January 3, 2023	< 15 ng/L	Adams Ave. #1 (Adams Ave. Wellfield)
January 3, 2023	< 15 ng/L	Sawyer Ave. #4 (Sawyer Ave. Wellfield)
January 3, 2023	4.2 ng/L	Smith St. #8 (Smith St. Wellfield)
January 3, 2023	< 15 ng/L	Chestnut St. #2 (Chestnut St. Wellfield)

A value preceded by "<" means no PFAS-4 compound was quantified, the figure being the sum of the four UCMR 5 reporting limits. Sums with a compound below the 3 to 4 ng/L reporting limit are lower bounds. How to read a PFAS result

Compliance status

UCMR 5 results do not indicate compliance or noncompliance with the PFAS drinking water standards. UCMR 5 is a national monitoring survey; the system's compliance record and its annual Consumer Confidence Report come from the state agency and EPA's SDWIS.

Values to watch

These entry-point results are above a federal MCL that systems must meet from April 2029, or above the Hazard Index limit of 1. UCMR 5 results do not indicate compliance or noncompliance with the PFAS drinking water standards.

What was tested	Value	Limit	Status
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Smith St. #8 (Smith St. Wellfield) · maximum	10.4 ng/L (0.0104 µg/L)	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	PFOA or PFOS above the 2029 federal MCL
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · North Road #1 & #2 (North Rd. Wellfield) · maximum	4.3 ng/L (0.0043 µg/L)	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	PFOA or PFOS above the 2029 federal MCL
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Morris Ave. #3 (Morris Ave. Wellfield) · maximum	10.8 ng/L (0.0108 µg/L)	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	PFOA or PFOS above the 2029 federal MCL
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Station Rd. #2A (Station Rd. LO Wellfield) · maximum	11 ng/L (0.011 µg/L)	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	PFOA or PFOS above the 2029 federal MCL
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Shady Lane #1 (Shady Lane Wellfield) · maximum	8.8 ng/L (0.0088 µg/L)	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	PFOA or PFOS above the 2029 federal MCL
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Hurtin Blvd. #1 (Hurtin Blvd. Wellfield) · maximum	4.1 ng/L (0.0041 µg/L)	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	PFOA or PFOS above the 2029 federal MCL
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Pierson St. #3 (Pierson St. Wellfield) · maximum	8.9 ng/L (0.0089 µg/L)	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	PFOA or PFOS above the 2029 federal MCL
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · St. Johnsland Road #1 (St. Johnsland Road Wellfield) · maximum	4.8 ng/L (0.0048 µg/L)	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	PFOA or PFOS above the 2029 federal MCL
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Sy Ct. #3 (Sy Ct. Wellfield) · maximum	5.2 ng/L (0.0052 µg/L)	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	PFOA or PFOS above the 2029 federal MCL
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Hallock Ave. #2 (Hallock Ave. Wellfield) · maximum	15.9 ng/L (0.0159 µg/L)	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	PFOA or PFOS above the 2029 federal MCL
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Daniel Webster Dr. #1 (Daniel Webster Dr. Wellfield) · maximum	5 ng/L (0.005 µg/L)	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	PFOA or PFOS above the 2029 federal MCL
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Dare Rd. #2 (Dare Rd. Wellfield) · maximum	10.2 ng/L (0.0102 µg/L)	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	PFOA or PFOS above the 2029 federal MCL
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · William Floyd Pkwy. #3A (William Floyd Pkwy. Wellfield) · maximum	6.5 ng/L (0.0065 µg/L)	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	PFOA or PFOS above the 2029 federal MCL
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Oxhead Rd. #3 (Oxhead Rd. Wellfield) · maximum	4.1 ng/L (0.0041 µg/L)	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	PFOA or PFOS above the 2029 federal MCL
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Wheat Path #1 (Wheat Path Wellfield) · maximum	10.7 ng/L (0.0107 µg/L)	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	PFOA or PFOS above the 2029 federal MCL
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Boyle Rd. South #1 (Boyle Rd. South Wellfield) · maximum	11.3 ng/L (0.0113 µg/L)	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	PFOA or PFOS above the 2029 federal MCL
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Horseblock Rd. #2 (Horseblock Rd. Int. Wellfield) · maximum	10.5 ng/L (0.0105 µg/L)	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	PFOA or PFOS above the 2029 federal MCL

See all 243 test results

What was tested	Value	Limit	Status
PFAS Hazard Index (US EPA)	0.64 (index)	MCL (from April 2029): 1	within the Hazard Index limit
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Adams Ave. #1 (Adams Ave. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Albany Ave. #5A (Albany Ave. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Albin Ave. #9A (Albin Ave. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · August Rd. #4A (August Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Brook Ave. #1A (Brook Ave. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Circle Dr. #3A (Circle Dr. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Gordon Ave. #2 (Gordon Ave. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Great Neck Rd. #3 (Great Neck Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Greene Ave. #7A (Greene Ave. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Industry Ct. #1 (Industry Ct. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Lafayette Rd. #2A (Lafayette Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Lambert Ave. Cop #2 (Lambert Ave. Cop Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Plymouth St. #3A (Plymouth St. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Sawyer Ave. #4 (Sawyer Ave. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Raleigh Lane #1 (Raleigh Lane Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Smith St. #8 (Smith St. Wellfield) · maximum	10.4 ng/L (0.0104 µg/L)	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	PFOA or PFOS above the 2029 federal MCL
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · West Neck Rd. Shelter Island #5 (West Neck Rd. Shelter Island Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Tenety Ave. #3 (Tenety Ave. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · 12th St. #4 (12th St. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Wyandanch Ave. #2A (Wyandanch Ave. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Landscape Dr. #1 (Landscape Dr. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Gazza Blvd. #2 (Gazza Blvd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Smith St. #1 (Smith St. (EF) Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Oak Beach Road #1 (Oak Beach Road Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Bay Shore Rd. #1 (Bay Shore Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Bellmore Ave. #4 (Bellmore Ave. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Commercial Blvd. #3 (Commercial Blvd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Dolores Place #1 (Dolores Place Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · East Forks Rd. #5 (East Forks Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Emjay Blvd. #3A (Emjay Blvd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Fisher Ave. #3 (Fisher Ave. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · 41st St. #4 (41st St. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Harvest Lane #3 (Harvest Lane Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Locust Dr. #3 (Locust Dr. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Moffitt Blvd. #1 (Moffitt Blvd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Montauk Hwy. #4 (Montauk Hwy. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Nicolls Rd. #3 (Nicolls Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · 5th Ave. #34 (5th Ave. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Oval Dr. #3 (Oval Dr. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Sunrise Hwy. #3 (Sunrise Hwy. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Thomas Ave. #2 (Thomas Ave. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Union Blvd. #1A (Union Blvd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Carleton Ave. #1 (Carleton Ave. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Cedar Ct. #2 (Cedar Ct. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Point of Woods #2A (Point of Woods Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Center Walk #3 (Center Walk Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Fishermans Path #2 (Fishermans Path Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · 3rd Ave. #4 (3rd Ave. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Carrol St. #3 (Carrol St. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · American Blvd. #1 (American Blvd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Central Walk # 1A (Central Walk (FHBR) Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Bay Walk #2A (Bay Walk Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Sandy Walk #1 (Sandy Walk Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Traffic Walk #2A (Traffic Walk Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Broadway #3 (Broadway Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Church St. NPT #1 (Church St. NPT Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Douglas Ave. #1 (Douglas Ave. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Flower Hill Rd. #3 (Flower Hill Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Gun Club Rd. #3 (Gun Club Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Harbor Rd. #1A (Harbor Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Laurel Hill Rd. #1 (Laurel Hill Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Mayfair Dr. #2 (Mayfair Dr. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Meade Dr. #3 (Meade Dr. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Middleville Rd. #2 (Middleville Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Ruth Blvd. #3 (Ruth Blvd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Mill Lane #15A (Mill Lane Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Reservoir Ave. #1A (Reservoir Ave. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Daly Road #1 (Daly Road Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Schuyler Dr. #1A (Schuyler Dr. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · South Spur Dr. #3 & #1 (South Spur Dr. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Washington St. #1A (Washington St. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Waterside Rd. #2 (Waterside Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · West Neck Rd. #1 & #2 (West Neck Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Woodchuck Hollow Rd. #3 (Woodchuck Hollow Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Wayne Ct. #1 (Wayne Ct. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Hollywood Place #1 (Hollywood Place Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · McKay Rd. #1 (McKay Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Elwood Rd. #1 (Elwood Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Jennings Rd. #2 (Jennings Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Country Club #3 (Country Club Dr. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Dune Rd. #1 (Dune Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Meetinghouse Rd. #22 (Meetinghouse Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Moriches Riverhead Rd. #1A (Moriches Riverhead Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Old Country Rd. #3 (Old Country Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Old Neck Rd. #2 (Old Neck Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Spinney Rd. #3 (Spinney Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Margin Dr. East #5 (Margin Dr. East Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Lambert Ave. Mastic #2 (Lambert Ave. Mastic Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Inlet Dr. #1A (Inlet Dr. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Sunset Dr. #3A (Sunset Dr. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Quoque Riverhead Rd. #1 (Quogue Riverhead Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Main St. #2 (Main St. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · North Road #1 & #2 (North Rd. Wellfield) · maximum	4.3 ng/L (0.0043 µg/L)	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	PFOA or PFOS above the 2029 federal MCL
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Browns Hills Rd. #5 (Browns Hills Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Old North Rd. #1A (Old North Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Ackerly Pond Lane #2 (Ackerly Pond Lane Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Brecknock Hall #2 (Brecknock HALL Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Kenneys Rd. #1 (Kenneys Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Laurel Lake #2B (Laurel Lake Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Middle Rd. Southold #1 (Middle Rd. Southold Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · County Rd. 31 #2 (County Rd. 31 Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · County Rd. 111 #1 (County Rd. 111 Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · The Longway #1A (The Longway Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Islands End #9 & 6A (Islands End Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Malloy Dr. #1 (Malloy Dr. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Rocky Point Rd. #5 & #2 (Rocky Point Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Oak Ave. #1 (Oak Ave. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Seatuck Ave. #2 (Seatuck Ave. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Bay Dr. #1 (Bay Dr. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Gus Guerrera #3 (Gus Guerrera Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Mill Lane Peconic #1 (Mill Lane Peconic Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Middle Rd. Peconic #2&4 (Middle Rd. Peconic Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Evergreen Dr. #1A (Evergreen Dr. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Sound Ave. #1A (Sound Ave. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Development Dr. #1 (Development Dr. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Alvah Lane #1 (Alvah Lane Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Yoco Rd. #1A (Yoco Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Barton Ave. #3 (Barton Ave. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · China Rd. #2 (China Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Church St. BOH #3 (Church St. BOH Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Church St. HOL #3 (Church St. HOL Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · College Rd. #4 & 2 (College Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Easton St. #3 (Easton St. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Greenbelt Pkwy. #1A (Greenbelt Pkwy. Wellfield) · maximum	3.9 ng/L (0.0039 µg/L)	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	PFAS-4 quantified
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Head of the Neck Rd. #4 (Head of the Neck Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Horseblock Rd. #3 (Horseblock Rd. Hi. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Fairmont Ave (Med) #1 (Fairmont Ave (Med) Int. Wellfield) · maximum	6.5 ng/L (0.0065 µg/L)	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	PFAS-4 quantified
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Kayron Dr. #1A (Kayron Dr. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Lakeview Ave. #4 (Lakeview Ave. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Lincoln Ave. #2 (Lincoln Ave. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Locust Ave. #4 (Locust Ave. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Morris Ave. #3 (Morris Ave. Wellfield) · maximum	10.8 ng/L (0.0108 µg/L)	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	PFOA or PFOS above the 2029 federal MCL
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · S. Howell Ave. #1 (South Howell Avenue Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Patchogue Yaphank Rd. #1 (Patchogue Yaphank Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Peconic Ave. Med. #1 (Peconic Ave. Med. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Main St Yaphank #1 (Main St Yaphank Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Pleasant Ave. #4 (Pleasant Ave. Int. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Samuel St. #3 (Samuel St. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Station Rd. #2A (Station Rd. LO Wellfield) · maximum	11 ng/L (0.011 µg/L)	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	PFOA or PFOS above the 2029 federal MCL
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Shady Lane #1 (Shady Lane Wellfield) · maximum	8.8 ng/L (0.0088 µg/L)	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	PFOA or PFOS above the 2029 federal MCL
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Waterworks Rd. #1 (Waterworks Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Peconic St. #2 (Peconic St. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Maple Ave. #1 (Maple Ave. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Virginia Ave. #2 (Virginia Ave. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · East Walk #3 (East Walk Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Railroad Ave. #2 (Railroad Ave. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Foxcroft Lane #1A (Foxcroft Lane Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Bayview Walk #2 (Bayview Walk Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Watch Hill #1A (Watch Hill Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Astor Ave. #2A (Astor Ave. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Blue Spruce Lane #2A (Blue Spruce Lane Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Capitol Ct. #2 (Capitol Ct. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Carlson Ave. #7 (Carlson Ave. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Cornell Dr. #2 (Cornell Dr. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Falcon Dr. #1 (Falcon Dr. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Hurtin Blvd. #1 (Hurtin Blvd. Wellfield) · maximum	4.1 ng/L (0.0041 µg/L)	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	PFOA or PFOS above the 2029 federal MCL
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Old Dock Rd. #1 (Old Dock Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Kings Park Rd. #3 (Kings Park Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Lawrence Rd. #1A (Lawrence Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Liberty St. #2 (Liberty St. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · New Mill Rd. #1 (New Mill Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · New York Ave. #4 (New York Ave. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Pierson St. #3 (Pierson St. Wellfield) · maximum	8.9 ng/L (0.0089 µg/L)	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	PFOA or PFOS above the 2029 federal MCL
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · St. Johnsland Road #1 (St. Johnsland Road Wellfield) · maximum	4.8 ng/L (0.0048 µg/L)	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	PFOA or PFOS above the 2029 federal MCL
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Sy Ct. #3 (Sy Ct. Wellfield) · maximum	5.2 ng/L (0.0052 µg/L)	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	PFOA or PFOS above the 2029 federal MCL
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Townline Rd. #2 (Townline Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Walter Ct. #2 (Walter Ct. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Wheeler Rd. #4 & #5 (Wheeler Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Wicks Rd. #3 (Wicks Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Hallock Ave. #2 (Hallock Ave. Wellfield) · maximum	15.9 ng/L (0.0159 µg/L)	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	PFOA or PFOS above the 2029 federal MCL
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Sunken Meadow State Park #1 (Sunken Meadow State Park Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Edgewood Ave. #3 (Edgewood Ave. Int. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Bailey Rd. #2 (Bailey Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Belle Terre Rd. #3 (Belle Terre Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Bicycle Path #2 (Bicycle Path Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Boyle Rd. Port Jeff #1 (Boyle Rd. Port Jeff Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Chestnut St. #2 (Chestnut St. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Crystal Brook Hollow Rd. #3 (Crystal Brook Hollow Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Daniel Webster Dr. #1 (Daniel Webster Dr. Wellfield) · maximum	5 ng/L (0.005 µg/L)	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	PFOA or PFOS above the 2029 federal MCL
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Dare Rd. #2 (Dare Rd. Wellfield) · maximum	10.2 ng/L (0.0102 µg/L)	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	PFOA or PFOS above the 2029 federal MCL
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Eastwood Blvd. #3 (Eastwood Blvd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Flint Lane #1 (Flint Lane Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Hawkins Rd. #2 (Hawkins Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · William Floyd Pkwy. #3A (William Floyd Pkwy. Wellfield) · maximum	6.5 ng/L (0.0065 µg/L)	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	PFOA or PFOS above the 2029 federal MCL
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Henry Clay Dr. #2 (Henry Clay Dr. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Jayne Blvd. #4 (Jayne Blvd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Mud Rd. #2 (Mud Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · North Country Rd. #2 (North Country Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Oak St. #3 (Oak St. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Oxhead Rd. #3 (Oxhead Rd. Wellfield) · maximum	4.1 ng/L (0.0041 µg/L)	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	PFOA or PFOS above the 2029 federal MCL
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Herricks Lane #2 (Herricks Lane Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Sherry Dr. #1 (Sherry Dr. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Stem Lane #2 (Stem Lane Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Strathmore Ct. Dr. #2 (Strathmore Ct. Dr. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Tower St. #1 (Tower St. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Wheat Path #1 (Wheat Path Wellfield) · maximum	10.7 ng/L (0.0107 µg/L)	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	PFOA or PFOS above the 2029 federal MCL
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Meehan Lane #1A (Meehan Lane Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Water Rd. #1 (Water Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Mt. Sinai Coram Rd. #1 (Mount Sinai Coram Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Boyle Rd. South #1 (Boyle Rd. South Wellfield) · maximum	11.3 ng/L (0.0113 µg/L)	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	PFOA or PFOS above the 2029 federal MCL
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Mount Sinai Coram Rd. South #1 (Mount Sinai Coram Rd. South Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Fish Rd. #1 (Fish Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Knight St. #7 (Knight St. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Tower Hill Rd. #3A (Tower Hill Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Radio Ave. #1A (Radio Ave. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Middle Country Rd #2 (Middle Country Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Bridgehampton Rd. #4&5A (Bridgehampton Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Cross Hwy. #1 (Cross Hwy. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Spring Close Hwy. #1A (Spring Close Hwy. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Division St. #3 (Division St. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Stephens Hands Path #1 (Stephens Hands Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Flamingo Ave. #1A (Flamingo Ave. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Long Springs Rd. #6 & #4B (Long Springs Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Oakview Hwy. #1A (Oakview Hwy. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · South Davis Ave. #1 (South Davis Ave. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Montauk Point State Blvd. #1A & #2 (Montauk Point State Blvd. Wellfield) · maximum	7.4 ng/L (0.0074 µg/L)	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	PFAS-4 quantified
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · North Magee St. #4 (North Magee St. Wellfield) · maximum	4.1 ng/L (0.0041 µg/L)	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	PFAS-4 quantified
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · West Prospect St. #4 & #5 (West Prospect St. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Edge of Woods Rd. #3 (Edge of Woods Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Fairmont Ave. #1A (Fairmont Ave. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Farrington Rd. #1A (Farrington Rd. Wellfield) · maximum	3.3 ng/L (0.0033 µg/L)	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	PFAS-4 quantified
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Flanders Rd. #2 (Flanders Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Edison Dr. #1 (Edison Dr. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Lumber Lane #5 (Lumber Lane Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Scuttlehole Rd. #3 (Scuttlehole Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Townline Rd. EH #3 (Townline Rd. EH Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Sag Harbor Tpke. #2 (Sag Harbor Tpke. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Bulls Path #1 (Bulls Path Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Tuckahoe Rd. #1 (Tuckahoe Rd. Wellfield) · maximum	3.2 ng/L (0.0032 µg/L)	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	PFAS-4 quantified
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Roses Grove Rd. #1 (Roses Grove Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Accabonac Rd. #1 (Accabonac Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Blank Lane #1 (Blank Lane Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Fresh Pond Road #1 (Fresh Pond Road Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Deerfield Road #1 (Deerfield Road Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Blue Point Rd. #2 (Blue Point Rd. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Horseblock Rd. #2 (Horseblock Rd. Int. Wellfield) · maximum	10.5 ng/L (0.0105 µg/L)	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	PFOA or PFOS above the 2029 federal MCL
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Fairmont Ave (Med) #3 (Fairmont Ave (Med) Hi Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Pleasant Ave. #3 (Pleasant Ave. Hi Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Edgewood Ave. #4 & #1A (Edgewood Ave. Hi Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · N. Washington Ave. #2 (North Washington Ave. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
PFAS-4 (PFOA + PFOS + PFNA + PFHxS) · Fish Rd. #2 (Fish Rd. Int. Wellfield) · maximum	below the 15 ng/L reporting limit	no MCL for the sum; MCL (from April 2029) 4.0 ng/L for PFOA and for PFOS	not detected
Lithium · UCMR 5, for reference	below the 9 µg/L reporting limit	no MCL	for reference

Frequently asked questions

Is the tap water in Suffolk County Water Authority safe to drink?

In the latest UCMR 5 entry-point sample on November 21, 2023, the four most closely watched PFAS added up to at least 29.1 ng/L, 58.2 times the 0.5 ng/L health benchmark pfasnearme uses. PFOA and PFOS were above the 4.0 ng/L federal MCL that systems must meet from April 2029. EPA set the maximum contaminant level goal (MCLG) for PFOA and PFOS at zero because there is no level without risk. UCMR 5 results do not indicate compliance or noncompliance with the PFAS drinking water standards, and this site reports published measurements without judging health risk. This is not medical advice. If you are concerned, talk to your water system or your doctor.

What is UCMR 5 and why do the results say "below the reporting limit"?

The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) had every large US water system and a sample of small ones test 29 PFAS and lithium between 2023 and 2025, at each entry point to the distribution system. EPA set minimum reporting levels of 3 to 4 ng/L for PFOA, PFOS, PFNA and PFHxS and reports nothing below them. A result "below the 3 to 4 ng/L reporting limit" therefore means the lab could not quantify the compound, not that it is absent, and it is never shown here as zero.

What do the 0.5 ng/L benchmark and the 4.0 ng/L MCL mean, and why are both shown?

0.5 ng/L for the PFAS-4 sum (PFOA + PFOS + PFNA + PFHxS) is the health benchmark pfasnearme applies on every page, in Europe and the United States, built from the European Food Safety Authority's tolerable intake with stricter safety choices. 4.0 ng/L is the enforceable federal maximum contaminant level for PFOA and for PFOS individually under EPA's PFAS National Primary Drinking Water Regulation (NPDWR), the US legal limit. Any PFAS-4 compound quantified under UCMR 5 (at or above 3 to 4 ng/L) is above the benchmark, so the benchmark tells you whether anything was found and the MCL tells you whether the system would have to act. EPA set the maximum contaminant level goal (MCLG) for PFOA and PFOS at zero because there is no level without risk.

When does the 4.0 ng/L MCL apply, and could it change?

EPA published the PFAS National Primary Drinking Water Regulation (NPDWR) on April 26, 2024. Systems must finish initial monitoring by April 26, 2027, tell customers about PFAS in their 2027 Consumer Confidence Reports, and comply with the PFOA and PFOS MCLs from April 26, 2029. Two proposals published on May 20, 2026 are not final: one would let systems in states where EPA holds primacy extend PFOA and PFOS compliance to April 26, 2031; the other would rescind the PFHxS, PFNA, HFPO-DA MCLs and the Hazard Index while keeping PFOA and PFOS. The rule is also before the U.S. Court of Appeals for the D.C. Circuit (American Water Works Association v. EPA, argued 2026-09-18 before Judges Millett, Pillard and Wilkins; no decision). Regulation data retrieved September 19, 2026.

Does New York have its own PFAS limits?

Yes. New York State Department of Health (NYSDOH), Bureau of Water Supply Protection enforces MCLs under 10 NYCRR Subpart 5-1: PFOA 10 ng/L (since August 26, 2020); PFOS 10 ng/L (since August 26, 2020). The federal PFOA and PFOS MCLs (4.0 ng/L) are stricter than every state MCL, so the federal line is about severity and the state line is about what is enforceable today. In this UCMR 5 sample, PFOS was above the New York MCL. State monitoring: quarterly compliance monitoring since 2020; annual mean and maximum per system published by the Environmental Public Health Tracker.

Is this the water that comes out of my tap in Suffolk County Water Authority?

Only if Suffolk County Water Authority (PWSID NY5110526) is your water system: check your water bill or your ZIP code page on this site, or the Suffolk County page. Samples are taken at the entry point to the distribution system, not at your tap. The system may have changed sources or installed treatment since this sample. PFAS treatment reported to EPA: granular activated carbon (GAC), ion exchange (IEX), no PFAS treatment reported (NMT). The system's own Consumer Confidence Report, published every year, states what it measures today.

What can I do about PFAS in my water?

Ask Suffolk County Water Authority for its latest PFAS results and its plan for the 2029 MCLs, read its Consumer Confidence Report (EPA's CCR finder, PWSID NY5110526), and if you want to lower PFAS at home, use a filter certified to NSF/ANSI 53 or 58 for PFOA and PFOS (reverse osmosis and activated carbon block filters; see the filter comparison linked on this page). Boiling water does not remove PFAS.

Are PFAS levels rising in Suffolk County Water Authority's water?

pfasnearme reads a trend per entry point, and the headline entry point (Station Rd. #3A (Station Rd. Int. Wellfield)) has 2 quantified samples across the 480 UCMR 5 sampling events since January 3, 2023; a trend needs at least three. UCMR 5 monitoring is complete, so later trends will come from state compliance monitoring.

Where does this data come from?

Source: U.S. Environmental Protection Agency, Fifth Unregulated Contaminant Monitoring Rule (UCMR 5), final dataset August 2026, retrieved 2026-09-19. Public domain. Results are entry-point samples and do not indicate compliance with drinking water standards. System registry from EPA SDWIS/ECHO (2026Q2 edition); service areas from EPA ORD (model code MIT); geography from the U.S. Census Bureau. pfasnearme retrieved the data on September 19, 2026.

Water systems in the same county

Other community water systems in Suffolk County covered by this site, largest first.

South Huntington Water District

PFAS-4: not detected (below the 3 to 4 ng/L reporting limit)

Greenlawn Water District

PFAS-4: at least 3.2 ng/L

Riverhead Water District

PFAS-4: not detected (below the 3 to 4 ng/L reporting limit)

Dix Hills Water District

PFAS-4: not detected (below the 3 to 4 ng/L reporting limit)

Smithtown Water District

PFAS-4: not detected (below the 3 to 4 ng/L reporting limit)

Hampton Bays Water District

PFAS-4: not detected (below the 3 to 4 ng/L reporting limit)

St James Water District

PFAS-4: not detected (below the 3 to 4 ng/L reporting limit)

Ocean Beach Water District

PFAS-4: not detected (below the 3 to 4 ng/L reporting limit)

Nearby water systems

The community water systems closest to Suffolk County Water Authority covered by this site, by service-area center.

Brookhaven National Laboratory

PFAS-4: not detected (below the 3 to 4 ng/L reporting limit) 4 mi (6 km) away

Farmingdale (V)

PFAS-4: not detected (below the 3 to 4 ng/L reporting limit) 28 mi (45 km) away

Plainview WD

PFAS-4: not detected (below the 3 to 4 ng/L reporting limit) 28 mi (45 km) away

South Farmingdale WD

PFAS-4: not detected (below the 3 to 4 ng/L reporting limit) 29 mi (47 km) away

Bethpage WD

PFAS-4: not detected (below the 3 to 4 ng/L reporting limit) 30 mi (48 km) away

Data source

U.S. Environmental Protection Agency, Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) occurrence data, final dataset (August 2026): https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule
License: Public domain (U.S. federal government work, 17 U.S.C. § 105)
Retrieved: September 19, 2026
Entry points and samples: Adams Ave. #1 (Adams Ave. Wellfield), Albany Ave. #5A (Albany Ave. Wellfield), Albin Ave. #9A (Albin Ave. Wellfield), August Rd. #4A (August Rd. Wellfield), Brook Ave. #1A (Brook Ave. Wellfield), Circle Dr. #3A (Circle Dr. Wellfield), Gordon Ave. #2 (Gordon Ave. Wellfield), Great Neck Rd. #3 (Great Neck Rd. Wellfield), Greene Ave. #7A (Greene Ave. Wellfield), Industry Ct. #1 (Industry Ct. Wellfield), Lafayette Rd. #2A (Lafayette Rd. Wellfield), Lambert Ave. Cop #2 (Lambert Ave. Cop Wellfield), Plymouth St. #3A (Plymouth St. Wellfield), Sawyer Ave. #4 (Sawyer Ave. Wellfield), Raleigh Lane #1 (Raleigh Lane Wellfield), Smith St. #8 (Smith St. Wellfield), West Neck Rd. Shelter Island #5 (West Neck Rd. Shelter Island Wellfield), Tenety Ave. #3 (Tenety Ave. Wellfield), 12th St. #4 (12th St. Wellfield), Wyandanch Ave. #2A (Wyandanch Ave. Wellfield), Landscape Dr. #1 (Landscape Dr. Wellfield), Gazza Blvd. #2 (Gazza Blvd. Wellfield), Smith St. #1 (Smith St. (EF) Wellfield), Oak Beach Road #1 (Oak Beach Road Wellfield), Bay Shore Rd. #1 (Bay Shore Rd. Wellfield), Bellmore Ave. #4 (Bellmore Ave. Wellfield), Commercial Blvd. #3 (Commercial Blvd. Wellfield), Dolores Place #1 (Dolores Place Wellfield), East Forks Rd. #5 (East Forks Rd. Wellfield), Emjay Blvd. #3A (Emjay Blvd. Wellfield), Fisher Ave. #3 (Fisher Ave. Wellfield), 41st St. #4 (41st St. Wellfield), Harvest Lane #3 (Harvest Lane Wellfield), Locust Dr. #3 (Locust Dr. Wellfield), Moffitt Blvd. #1 (Moffitt Blvd. Wellfield), Montauk Hwy. #4 (Montauk Hwy. Wellfield), Nicolls Rd. #3 (Nicolls Rd. Wellfield), 5th Ave. #34 (5th Ave. Wellfield), Oval Dr. #3 (Oval Dr. Wellfield), Sunrise Hwy. #3 (Sunrise Hwy. Wellfield), Thomas Ave. #2 (Thomas Ave. Wellfield), Union Blvd. #1A (Union Blvd. Wellfield), Carleton Ave. #1 (Carleton Ave. Wellfield), Cedar Ct. #2 (Cedar Ct. Wellfield), Point of Woods #2A (Point of Woods Wellfield), Center Walk #3 (Center Walk Wellfield), Fishermans Path #2 (Fishermans Path Wellfield), 3rd Ave. #4 (3rd Ave. Wellfield), Carrol St. #3 (Carrol St. Wellfield), American Blvd. #1 (American Blvd. Wellfield), Central Walk # 1A (Central Walk (FHBR) Wellfield), Bay Walk #2A (Bay Walk Wellfield), Sandy Walk #1 (Sandy Walk Wellfield), Traffic Walk #2A (Traffic Walk Wellfield), Broadway #3 (Broadway Wellfield), Church St. NPT #1 (Church St. NPT Wellfield), Douglas Ave. #1 (Douglas Ave. Wellfield), Flower Hill Rd. #3 (Flower Hill Rd. Wellfield), Gun Club Rd. #3 (Gun Club Rd. Wellfield), Harbor Rd. #1A (Harbor Rd. Wellfield), Laurel Hill Rd. #1 (Laurel Hill Rd. Wellfield), Mayfair Dr. #2 (Mayfair Dr. Wellfield), Meade Dr. #3 (Meade Dr. Wellfield), Middleville Rd. #2 (Middleville Rd. Wellfield), Ruth Blvd. #3 (Ruth Blvd. Wellfield), Mill Lane #15A (Mill Lane Wellfield), Reservoir Ave. #1A (Reservoir Ave. Wellfield), Daly Road #1 (Daly Road Wellfield), Schuyler Dr. #1A (Schuyler Dr. Wellfield), South Spur Dr. #3 & #1 (South Spur Dr. Wellfield), Washington St. #1A (Washington St. Wellfield), Waterside Rd. #2 (Waterside Rd. Wellfield), West Neck Rd. #1 & #2 (West Neck Rd. Wellfield), Woodchuck Hollow Rd. #3 (Woodchuck Hollow Rd. Wellfield), Wayne Ct. #1 (Wayne Ct. Wellfield), Hollywood Place #1 (Hollywood Place Wellfield), McKay Rd. #1 (McKay Rd. Wellfield), Elwood Rd. #1 (Elwood Rd. Wellfield), Jennings Rd. #2 (Jennings Rd. Wellfield), Country Club #3 (Country Club Dr. Wellfield), Dune Rd. #1 (Dune Rd. Wellfield), Meetinghouse Rd. #22 (Meetinghouse Rd. Wellfield), Moriches Riverhead Rd. #1A (Moriches Riverhead Rd. Wellfield), Old Country Rd. #3 (Old Country Rd. Wellfield), Old Neck Rd. #2 (Old Neck Rd. Wellfield), Spinney Rd. #3 (Spinney Rd. Wellfield), Margin Dr. East #5 (Margin Dr. East Wellfield), Lambert Ave. Mastic #2 (Lambert Ave. Mastic Wellfield), Inlet Dr. #1A (Inlet Dr. Wellfield), Sunset Dr. #3A (Sunset Dr. Wellfield), Quoque Riverhead Rd. #1 (Quogue Riverhead Rd. Wellfield), Main St. #2 (Main St. Wellfield), North Road #1 & #2 (North Rd. Wellfield), Browns Hills Rd. #5 (Browns Hills Rd. Wellfield), Old North Rd. #1A (Old North Rd. Wellfield), Ackerly Pond Lane #2 (Ackerly Pond Lane Wellfield), Brecknock Hall #2 (Brecknock HALL Wellfield), Kenneys Rd. #1 (Kenneys Rd. Wellfield), Laurel Lake #2B (Laurel Lake Wellfield), Middle Rd. Southold #1 (Middle Rd. Southold Wellfield), County Rd. 31 #2 (County Rd. 31 Wellfield), County Rd. 111 #1 (County Rd. 111 Wellfield), The Longway #1A (The Longway Wellfield), Islands End #9 & 6A (Islands End Wellfield), Malloy Dr. #1 (Malloy Dr. Wellfield), Rocky Point Rd. #5 & #2 (Rocky Point Rd. Wellfield), Oak Ave. #1 (Oak Ave. Wellfield), Seatuck Ave. #2 (Seatuck Ave. Wellfield), Bay Dr. #1 (Bay Dr. Wellfield), Gus Guerrera #3 (Gus Guerrera Wellfield), Mill Lane Peconic #1 (Mill Lane Peconic Wellfield), Middle Rd. Peconic #2&4 (Middle Rd. Peconic Wellfield), Evergreen Dr. #1A (Evergreen Dr. Wellfield), Sound Ave. #1A (Sound Ave. Wellfield), Development Dr. #1 (Development Dr. Wellfield), Alvah Lane #1 (Alvah Lane Wellfield), Yoco Rd. #1A (Yoco Rd. Wellfield), Barton Ave. #3 (Barton Ave. Wellfield), China Rd. #2 (China Rd. Wellfield), Church St. BOH #3 (Church St. BOH Wellfield), Church St. HOL #3 (Church St. HOL Wellfield), College Rd. #4 & 2 (College Rd. Wellfield), Easton St. #3 (Easton St. Wellfield), Greenbelt Pkwy. #1A (Greenbelt Pkwy. Wellfield), Head of the Neck Rd. #4 (Head of the Neck Rd. Wellfield), Horseblock Rd. #3 (Horseblock Rd. Hi. Wellfield), Fairmont Ave (Med) #1 (Fairmont Ave (Med) Int. Wellfield), Kayron Dr. #1A (Kayron Dr. Wellfield), Lakeview Ave. #4 (Lakeview Ave. Wellfield), Lincoln Ave. #2 (Lincoln Ave. Wellfield), Locust Ave. #4 (Locust Ave. Wellfield), Morris Ave. #3 (Morris Ave. Wellfield), S. Howell Ave. #1 (South Howell Avenue Wellfield), Patchogue Yaphank Rd. #1 (Patchogue Yaphank Rd. Wellfield), Peconic Ave. Med. #1 (Peconic Ave. Med. Wellfield), Main St Yaphank #1 (Main St Yaphank Wellfield), Pleasant Ave. #4 (Pleasant Ave. Int. Wellfield), Samuel St. #3 (Samuel St. Wellfield), Station Rd. #2A (Station Rd. LO Wellfield), Shady Lane #1 (Shady Lane Wellfield), Waterworks Rd. #1 (Waterworks Rd. Wellfield), Peconic St. #2 (Peconic St. Wellfield), Maple Ave. #1 (Maple Ave. Wellfield), Virginia Ave. #2 (Virginia Ave. Wellfield), East Walk #3 (East Walk Wellfield), Railroad Ave. #2 (Railroad Ave. Wellfield), Foxcroft Lane #1A (Foxcroft Lane Wellfield), Bayview Walk #2 (Bayview Walk Wellfield), Watch Hill #1A (Watch Hill Wellfield), Astor Ave. #2A (Astor Ave. Wellfield), Blue Spruce Lane #2A (Blue Spruce Lane Wellfield), Capitol Ct. #2 (Capitol Ct. Wellfield), Carlson Ave. #7 (Carlson Ave. Wellfield), Cornell Dr. #2 (Cornell Dr. Wellfield), Falcon Dr. #1 (Falcon Dr. Wellfield), Hurtin Blvd. #1 (Hurtin Blvd. Wellfield), Old Dock Rd. #1 (Old Dock Rd. Wellfield), Kings Park Rd. #3 (Kings Park Rd. Wellfield), Lawrence Rd. #1A (Lawrence Rd. Wellfield), Liberty St. #2 (Liberty St. Wellfield), New Mill Rd. #1 (New Mill Rd. Wellfield), New York Ave. #4 (New York Ave. Wellfield), Pierson St. #3 (Pierson St. Wellfield), St. Johnsland Road #1 (St. Johnsland Road Wellfield), Sy Ct. #3 (Sy Ct. Wellfield), Townline Rd. #2 (Townline Rd. Wellfield), Walter Ct. #2 (Walter Ct. Wellfield), Wheeler Rd. #4 & #5 (Wheeler Rd. Wellfield), Wicks Rd. #3 (Wicks Rd. Wellfield), Hallock Ave. #2 (Hallock Ave. Wellfield), Sunken Meadow State Park #1 (Sunken Meadow State Park Wellfield), Edgewood Ave. #3 (Edgewood Ave. Int. Wellfield), Bailey Rd. #2 (Bailey Rd. Wellfield), Belle Terre Rd. #3 (Belle Terre Rd. Wellfield), Bicycle Path #2 (Bicycle Path Wellfield), Boyle Rd. Port Jeff #1 (Boyle Rd. Port Jeff Wellfield), Chestnut St. #2 (Chestnut St. Wellfield), Crystal Brook Hollow Rd. #3 (Crystal Brook Hollow Rd. Wellfield), Daniel Webster Dr. #1 (Daniel Webster Dr. Wellfield), Dare Rd. #2 (Dare Rd. Wellfield), Eastwood Blvd. #3 (Eastwood Blvd. Wellfield), Flint Lane #1 (Flint Lane Wellfield), Hawkins Rd. #2 (Hawkins Rd. Wellfield), William Floyd Pkwy. #3A (William Floyd Pkwy. Wellfield), Henry Clay Dr. #2 (Henry Clay Dr. Wellfield), Jayne Blvd. #4 (Jayne Blvd. Wellfield), Mud Rd. #2 (Mud Rd. Wellfield), North Country Rd. #2 (North Country Rd. Wellfield), Oak St. #3 (Oak St. Wellfield), Oxhead Rd. #3 (Oxhead Rd. Wellfield), Herricks Lane #2 (Herricks Lane Wellfield), Sherry Dr. #1 (Sherry Dr. Wellfield), Stem Lane #2 (Stem Lane Wellfield), Strathmore Ct. Dr. #2 (Strathmore Ct. Dr. Wellfield), Tower St. #1 (Tower St. Wellfield), Wheat Path #1 (Wheat Path Wellfield), Meehan Lane #1A (Meehan Lane Wellfield), Water Rd. #1 (Water Rd. Wellfield), Mt. Sinai Coram Rd. #1 (Mount Sinai Coram Rd. Wellfield), Boyle Rd. South #1 (Boyle Rd. South Wellfield), Mount Sinai Coram Rd. South #1 (Mount Sinai Coram Rd. South Wellfield), Fish Rd. #1 (Fish Rd. Wellfield), Knight St. #7 (Knight St. Wellfield), Tower Hill Rd. #3A (Tower Hill Rd. Wellfield), Radio Ave. #1A (Radio Ave. Wellfield), Middle Country Rd #2 (Middle Country Rd. Wellfield), Bridgehampton Rd. #4&5A (Bridgehampton Rd. Wellfield), Cross Hwy. #1 (Cross Hwy. Wellfield), Spring Close Hwy. #1A (Spring Close Hwy. Wellfield), Division St. #3 (Division St. Wellfield), Stephens Hands Path #1 (Stephens Hands Wellfield), Flamingo Ave. #1A (Flamingo Ave. Wellfield), Long Springs Rd. #6 & #4B (Long Springs Rd. Wellfield), Oakview Hwy. #1A (Oakview Hwy. Wellfield), South Davis Ave. #1 (South Davis Ave. Wellfield), Montauk Point State Blvd. #1A & #2 (Montauk Point State Blvd. Wellfield), North Magee St. #4 (North Magee St. Wellfield), West Prospect St. #4 & #5 (West Prospect St. Wellfield), Edge of Woods Rd. #3 (Edge of Woods Rd. Wellfield), Fairmont Ave. #1A (Fairmont Ave. Wellfield), Farrington Rd. #1A (Farrington Rd. Wellfield), Flanders Rd. #2 (Flanders Rd. Wellfield), Edison Dr. #1 (Edison Dr. Wellfield), Lumber Lane #5 (Lumber Lane Wellfield), Scuttlehole Rd. #3 (Scuttlehole Rd. Wellfield), Townline Rd. EH #3 (Townline Rd. EH Wellfield), Sag Harbor Tpke. #2 (Sag Harbor Tpke. Wellfield), Bulls Path #1 (Bulls Path Wellfield), Tuckahoe Rd. #1 (Tuckahoe Rd. Wellfield), Roses Grove Rd. #1 (Roses Grove Rd. Wellfield), Accabonac Rd. #1 (Accabonac Rd. Wellfield), Blank Lane #1 (Blank Lane Wellfield), Fresh Pond Road #1 (Fresh Pond Road Wellfield), Deerfield Road #1 (Deerfield Road Wellfield), Blue Point Rd. #2 (Blue Point Rd. Wellfield), Horseblock Rd. #2 (Horseblock Rd. Int. Wellfield), Fairmont Ave (Med) #3 (Fairmont Ave (Med) Hi Wellfield), Pleasant Ave. #3 (Pleasant Ave. Hi Wellfield), Station Rd. #3A (Station Rd. Int. Wellfield), Edgewood Ave. #4 & #1A (Edgewood Ave. Hi Wellfield), N. Washington Ave. #2 (North Washington Ave. Wellfield), Fish Rd. #2 (Fish Rd. Int. Wellfield)
UCMR 5 sample window: January 3, 2023 to September 29, 2025; 242 entry points, 622 sampling events
Source water: groundwater; community water system (large, over 10,000 people)
PFAS treatment reported to EPA: granular activated carbon (GAC), ion exchange (IEX), no PFAS treatment reported (NMT). The system may have changed sources or installed treatment since this sample.
Consumer Confidence Report: Search EPA's CCR finder for PWSID NY5110526 to read the system's own annual report
Regulation data (MCLs, dates) retrieved: September 19, 2026

System registry from EPA SDWIS/ECHO (2026Q2 edition); service areas from EPA ORD (model code MIT); geography from the U.S. Census Bureau.

UCMR 5 results do not indicate compliance or noncompliance with the PFAS drinking water standards. Samples are taken at the entry point to the distribution system, not at the tap; the system may have changed sources or installed treatment since. Treatment reported to EPA for PFAS: granular activated carbon (GAC), ion exchange (IEX), no PFAS treatment (NMT). 242 entry points sampled, 622 sampling events between 2023-01-03 and 2025-09-29. The page's PFAS values come from the newest sample at Station Rd. #3A (Station Rd. Int. Wellfield) (10454/00454EP1), the entry point with the highest PFOA + PFOS + PFNA + PFHxS sum; the other entry points' maxima are listed as separate rows. Non-detects are shown as "<" followed by EPA's minimum reporting level (3 to 20 ng/L); PFAS-4 sums quantified compounds only, so it is a lower bound when a compound was not detected. Registry (name, population, counties, ZIPs) from EPA SDWIS/ECHO; service-area centroid from EPA ORD.

This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.

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