Tap WaterIndex

← New York

Tap water quality report

Dix Hills Water District

EPA monitoring tested this supplier for 31 contaminants and detected 2. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

31
contaminants tested
2
detected
34,522
people served
11
health-based violations
New York rankingsLead in New YorkPFAS in New York
Water source
Ground water
Ownership
Local government
Counties served
Suffolk

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

11
health-based violations
65
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2011-12-01 → 2011-12-31
MCL Health-based Resolved 2011-12-01 → 2011-12-31
MCL Health-based Resolved 2011-12-01 → 2011-12-31
MCL Health-based Resolved 2007-08-01 → 2007-08-31
MCL Health-based Resolved 2007-08-01 → 2007-08-31
MCL Health-based Resolved 2007-08-01 → 2007-08-31
MCL Health-based Resolved 2007-08-01 → 2007-08-31
MCL Health-based Resolved 2001-09-01 → 2001-09-30
MCL Health-based Resolved 2001-09-01 → 2001-09-30
MCL Health-based Resolved 2001-09-01 → 2001-09-30

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfpea 0.0045 µg/L 1/12 2025

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Lead
0.0010 mg/L 6.7%
of the EPA limit 0.0150 mg/L
 10/10 LCR 2027
29 contaminants tested, none detected
11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaHfpo-DaNetfosaaNfdhaNmefosaaPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpesPftaPftrdaPfunaLithium

Utility contact

Contact
SPITTAL, SCOTT
Phone
631-351-6612
Email
[email protected]

Frequently asked questions about Dix Hills Water District

Is Dix Hills Water District tap water safe to drink?

EPA monitoring detected 2 contaminants in Dix Hills Water District's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Dix Hills Water District's water?

EPA monitoring detected Lead, Pfpea. The full list with the level and data source for each is above.

How many people does Dix Hills Water District serve?

Dix Hills Water District reports serving 34,522 people in New York, per its EPA record.

Has Dix Hills Water District had any water quality violations?

The EPA has 65 violations on file for Dix Hills Water District, of which 11 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.