Little Fresh Pond
Suffolk County, New YorkView mapDirections
Not Rated: one monitoring station are on record, but they measured water clarity only. LakeQuality’s A–F method grades total phosphorus, total nitrogen, chlorophyll-a, and turbidity; clarity is shown, not scored.
- Impaired · Nutrients (phosphorus, nitrogen)
- Limited data
Little Fresh Pond in Suffolk County, New York is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 3.8 ft visibility.
- Clarity
- 3.8 ft
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Watch Little Fresh Pond’s letter
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Why Little Fresh Pond has no grade
Little Fresh Pond has monitoring on record from one station, but only water clarity was measured. LakeQuality’s A–F letter uses total phosphorus, total nitrogen, chlorophyll-a, and turbidity against EPA National Lakes Assessment condition classes. With none of those grading measurements on record, Little Fresh Pond is Not Rated — not an F. Its 3.8-foot median from 8 readings collected 2020 is still shown as clarity, but clarity alone cannot earn a letter.
Not Rated is EPA Integrated Reporting Category 3 — insufficient information. Everything below that has been measured is still reported on this page.
Sampling is run by NYSDEC and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Little Fresh Pond is a lake in Suffolk County, New York.
Source: EPA Water Quality Portal sampling records, NYSDEC, last sampled 2020-09-13. Grade methodology: LakeQuality methodology.
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Little Fresh Pond is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.
Water quality measurements for Little Fresh Pond
These readings exist but are not enough for an A–F grade — see why.
Murky, only visible to about 3.8 ft. TSI 58.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.8 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 58 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Fishing Little Fresh Pond
EPA Impairment Status
Little Fresh Pond is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit NY1701-0125 · Official waterbody report · Matched by proximity (0.57 km)
Regulated Pollution Sources Nearby
3 EPA-permitted facilities operate within about 5 miles of Little Fresh Pond under Clean Water Act (NPDES) discharge permits. 1 facility has a reported Clean Water Act violation in the past three years.
- Lake Agawam Algea HarvestersSouthampton · 2.6 mi away · NPDES NY0313173Recent violation
- Southampton (T)Water Mill · 2.5 mi away · NPDES NY0267473
- Southampton Medical PropertySouthampton · 2.8 mi away · NPDES NY0211788
Facilities permitted to discharge under the Clean Water Act within ~5 miles; proximity does not by itself mean a facility affects this lake. Source: EPA ECHO (ICIS-NPDES), as of 2026-07.
Nearby Lakes in Suffolk County
Frequently asked questions about Little Fresh Pond
Where is Little Fresh Pond?
- Little Fresh Pond is a lake in Suffolk County, New York. LakeQuality has not rated this lake (UNRATED) — the only measurement available is water clarity, which is not a water-quality indicator on its own — EPA's National Lakes Assessment does not grade clarity.
What is the water quality grade for Little Fresh Pond?
- Little Fresh Pond in Suffolk County, New York is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 3.8 ft visibility.
Is Little Fresh Pond safe to swim in?
- The letter is not a swimming clearance. Little Fresh Pond is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.
Explore Little Fresh Pond across LakeQuality
Planning a trip around Fire Island?
Little Fresh Pond is about 34 miles from Fire Island National Seashore. Crowds there swing hard by season, so the month you pick changes both how busy the park is and what lodging costs.
Best time to visit Fire Island →More New York Lake Rankings
Other Lakes in New York
Eutrophic Lakes in New York
Where this data comes from
8 measurements from 1 monitoring station, 2020. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- North American Lake Management Society
NALMS8 samples · 2020
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database
Regulated discharger data from EPA ECHO (ICIS-NPDES)