Water Quality Report · Updated October 07, 2026
SOUTH HUNTINGTON WATER DISTRICT
SOUTH HUNTINGTON WATER DISTRICT delivers tap water graded C (71/100) by TapWaterSafety.org. The utility serves approximately 81,760 residents in HUNTINGTON (T), New York using groundwater. The most significant water quality concerns are: PFAS contamination; Haloacetic acids (HAA5) significantly above health guideline; Nitrate and nitrite significantly above health guideline; Chromium (hexavalent) significantly above health guideline. For questions, the utility can be reached at 631-427-8190.
Is HUNTINGTON (T) tap water safe to drink?
SOUTH HUNTINGTON WATER DISTRICT delivers tap water that earns a grade of C (71/100) from TapWaterSafety.org — an average rating, with several contaminants above health guidelines but generally compliant with US legal limits.
The utility serves 81,760 residents in HUNTINGTON (T), drawing from groundwater.
Public testing data identifies 9 contaminants in this water above EWG's health-based guidelines, including: Haloacetic acids (HAA5), Nitrate and nitrite, Chromium (hexavalent), Nitrate, Perfluorohexane sulfonate (PFHXS), Total trihalomethanes (TTHMs), Haloacetic acids (HAA9), 1,2,3-Trichloropropane, Radium, combined (-226 and -228). For most residents, a properly certified home filter at the kitchen tap is the most cost-effective way to reduce exposure to whatever's in your water. See our filter recommendations below, matched specifically to this utility's contaminant profile.
EPA compliance record
Official U.S. EPA records for SOUTH HUNTINGTON WATER DISTRICT (system ID NY5103263) for the last 3 years. Checked 2026-10-07.
| Rule | Type | Since | Status |
|---|---|---|---|
| Synthetic Organic Chemicals | Missed testing or reporting | 07/01/2025 | Open |
Source: U.S. EPA Enforcement and Compliance History Online (ECHO), from the Safe Drinking Water Information System. See EPA's full report.
Quick actions for HUNTINGTON (T) residents
Top concerns in this water
Based on the most recent EPA and EWG data, these are the most significant water quality issues for SOUTH HUNTINGTON WATER DISTRICT.
PFAS contamination
Severe concernPerfluorooctane sulfonate (PFOS), Perfluorooctanoic acid (PFOA) detected. PFAS are persistent chemicals linked to cancer and immune effects with no known safe exposure threshold.
Haloacetic acids (HAA5) significantly above health guideline
Moderate concernHaloacetic acids (HAA5) detected at 10.0 ppb, 100x above the EWG health guideline of 0.1 ppb.
Nitrate and nitrite significantly above health guideline
Moderate concernNitrate and nitrite detected at 4.55 ppm, 33x above the EWG health guideline of 0.14 ppm.
Chromium (hexavalent) significantly above health guideline
Moderate concernChromium (hexavalent) detected at 0.592 ppb, 30x above the EWG health guideline of 0.02 ppb.
Contact SOUTH HUNTINGTON WATER DISTRICT
Reach the utility directly for service issues, water quality concerns, or to request your Consumer Confidence Report.
General Contact
Treatment Plant
Recommended water filters for HUNTINGTON (T)
Filters matched to the specific contaminants in this water supply.
Filter certified for PFOA/PFOS (NSF/ANSI 53 or 58)
$180-$750Reverse osmosis and some carbon block filters reduce PFAS. Look for certification to NSF/ANSI 53 or 58 for PFOA/PFOS.
Carbon filter certified for VOCs (NSF/ANSI 53)
$180-$599Activated carbon is effective for disinfection byproducts. Look for NSF/ANSI 53 VOC reduction.
Disclosure: TapWaterSafety earns a commission from purchases made through these links. This does not influence our scoring methodology or filter selection.
Score breakdown
This utility's overall score of 71/100 breaks down across five weighted components. Read the full methodology →
Contaminants detected — international standards comparison
Every contaminant detected, compared side-by-side against US EPA legal limits, the EU Drinking Water Directive (2020/2184), WHO Guidelines, and California's Public Health Goal (the strictest US benchmark). Why we show multiple standards →
| Contaminant | Detected | EWG US health-based |
EPA US legal |
EU DWD Europe |
WHO global |
CA PHG strictest US |
Tested sample year |
Status |
|---|---|---|---|---|---|---|---|---|
| Haloacetic acids (HAA5) Disinfection byproduct |
10.0 ppb | 0.1 | 60.0 | 60 | — | — | — | 100× over |
| Nitrate and nitrite Inorganic |
4.55 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 33× over |
| Chromium (hexavalent) Heavy metal |
0.592 ppb | 0.02 | — | — | — | — | — | 30× over |
| Nitrate Inorganic |
3.33 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 24× over |
| Perfluorohexane sulfonate (PFHXS) PFAS |
0.023 ppt | 0.001 | 10.0 | — | — | — | — | 23× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
2.68 ppb | 0.15 | 80.0 | 100 | — | — | — | 18× over |
| Haloacetic acids (HAA9) Disinfection byproduct |
0.952 ppb | 0.06 | — | — | — | — | — | 16× over |
| 1,2,3-Trichloropropane Other |
0.00622 ppb | 0.0007 | — | — | — | — | — | 8.9× over |
| Radium, combined (-226 and -228) Radiological |
0.37 pCi/L | 0.05 | 5.0 | — | — | — | — | 7.4× over |
| Trichloroethylene Volatile organic compound |
0.293 ppb | 0.4 | 5.0 | 10 | 20 | 1.7 | — | Below guideline |
| 1,4-Dioxane Semi-volatile organic compound |
0.221 ppb | 0.35 | — | — | 50 | 1 | — | Below guideline |
| 1,2-Dichloropropane Volatile organic compound |
0.303 ppb | 0.5 | 5.0 | — | — | — | — | Below guideline |
| Chlorate Disinfection byproduct |
92.3 ppb | 210.0 | — | — | — | — | — | Below guideline |
| Uranium Radiological |
0.14 pCi/L | 0.43 | 20.0 | 30 | 30 | 0.43 | — | Below guideline |
| 6:2 Fluorotelomer Sulfonic Acid (6:2 FTSA) Other |
0.238 ppt | 1.0 | — | — | — | — | — | Below guideline |
| 1,1-Dichloroethane Volatile organic compound |
0.245 ppb | 3.0 | — | — | — | — | — | Below guideline |
| Perfluorooctanoic acid (PFOA) PFAS |
0.006 ppt | 0.09 | 4.0 | 100 | 100 | 0.007 | — | Below guideline |
| Cobalt Other |
3.84 ppb | 70.0 | — | — | — | — | — | Below guideline |
| Barium Heavy metal |
21.5 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| Manganese Heavy metal |
2.2 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Perfluorooctane sulfonate (PFOS) PFAS |
0.005 ppt | 0.3 | 4.0 | 100 | 100 | 1 | — | Below guideline |
| Trichlorofluoromethane Other |
0.309 ppb | 1300.0 | — | — | — | — | — | Below guideline |
| Perfluorobutanoic Acid (PFBA) PFAS |
0.068 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluoropentanoic Acid (PFPeA) PFAS |
0.043 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluoroheptanoic acid (PFHPA) PFAS |
0.03 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluorohexanoic Acid (PFHxA) PFAS |
0.03 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.0249 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| 1,1-Dichloroethylene Volatile organic compound |
0.067 ppb | — | 7.0 | — | — | — | — | Below guideline |
| Acetone Other |
6.85 ppb | — | — | — | — | — | — | Below guideline |
| cis-1,2-Dichloroethylene Volatile organic compound |
0.54 ppb | — | 70.0 | — | — | — | — | Below guideline |
| Nitrite Inorganic |
0.025 ppm | — | 1.0 | — | — | — | — | Below guideline |
All values in the unit of the detected level. Red cells indicate the detected level exceeds that standard. Some contaminants have limits in some jurisdictions but not others (shown as —). The "Tested" column shows the year each contaminant sample was collected.
Sources: US EPA, EU Drinking Water Directive 2020/2184, WHO Guidelines (4th ed.), California OEHHA PHGs, EWG Tap Water Database.
SOUTH HUNTINGTON WATER DISTRICT service area
This water system serves 1 community in Suffolk County, New York. Click any city for its dedicated tap water quality page.
Find the right filter for HUNTINGTON (T) water
Browse filter categories by water-quality concern. Each option below is NSF-certified for the matched contaminant type.