Collins Pond
Collins Pond in Sussex County, New Jersey has a water quality grade of D (Nutrient-rich). Water clarity: 6.1 ft visibility. Phosphorus: 17.6 µg/L. Chlorophyll-a (algae): 13.1 µg/L. Surface area: 35 acres.
- Clarity
- 6.1 ft
- Area
- 35 acres
- Type
- Eutrophic
Grade D measures nutrients and algae, not whether this is a good place for a cabin trip. Cabins and rentals near Collins Pond →
Collins Pond is a 35-acre productive, nutrient-rich eutrophic lake in Sussex County, New Jersey. Water quality is graded D based on 2 sampling years through 2021. Compared to the 17 other monitored lakes in Sussex County, Collins Pond ranks #14 for water quality.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2021-11-08. Grade methodology: LakeGrade methodology.
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Swimming Safety
Grade onlyBacteria advisory
Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrients and algae run higher than average — check local advisories before swimming, and skip the water if you see scum
Water Quality Grade: D (Nutrient-rich)
Murky, only visible to about 6.1 ft. Phosphorus level: 17.6 µg/L. Chlorophyll-a: 13.1 µg/L. Trophic State Index: 51.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 6.1 ft | Not graded |
| Phosphorus | 17.6 µg/L | Fair |
| Chlorophyll-a (Algae) | 13.1 µg/L | Poor |
| Trophic State Index (TSI) | 51 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Collins Pond
Compare lakeside cabins, hotels, and vacation rentals near Collins Pond in Sussex County, New Jersey — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water. The water-quality grade measures nutrients and algae, not lodging — cabins and rentals around Collins Pond are listed below.
Top-rated places to stay near Collins Pond
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 35 acres |
No bathymetric survey has been published for Collins Pond, so its depth is not documented here.
Fishing Collins Pond
Reservoir Info (USACE NID)
Collins Pond is a man-made reservoir impounded by the Hawthorne Lake Dam (completed 1900), built primarily for recreation on the Wallkill-TR; earth-type dam, 8 ft tall and 165 ft long.
- Surface area
- 35 ac
- Normal storage
- 149 ac-ft
- Max storage
- 167 ac-ft
- Drainage area
- 0.4 sq mi
- Hazard class
- Low
- Owner
- Hawthorne Park Club
Source: USACE National Inventory of Dams, NID ID NJ01036 · Operator website · Matched by proximity (0.87 km)
EPA Impairment Status
Collins Pond is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 4A).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit NJ02020007010020-01 · Official waterbody report · Matched by proximity (1.64 km)
County Ranking
Ranked #14 of 18 lakes in Sussex County
Nearby Lakes in Sussex County
Frequently asked questions about Collins Pond
Where is Collins Pond?
- Collins Pond is a lake in Sussex County, New Jersey. LakeQuality grades it D for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Collins Pond?
- Collins Pond in Sussex County, New Jersey has a water quality grade of D (Nutrient-rich). Water clarity: 6.1 ft visibility. Phosphorus: 17.6 µg/L. Chlorophyll-a (algae): 13.1 µg/L. Surface area: 35 acres.
Is Collins Pond safe to swim in?
- Nutrients and algae run higher than average — check local advisories before swimming, and skip the water if you see scum. Collins Pond has a water quality grade of D (Nutrient-rich). Algae concentration (chlorophyll-a) is 13.1 µg/L. Always check local health department advisories before swimming.
Explore Collins Pond across LakeGrade
More New Jersey Lake Rankings
Other Grade D Lakes in New Jersey
Eutrophic Lakes in New Jersey
Where this data comes from
31 measurements from 2 monitoring stations, 2021. Retrieved from the EPA Water Quality Portal on 2026-08-21.
Collected and reported by
- NJDEP Bureau of Freshwater and Biological Monitoring
NJDEP_BFBM31 samples · 2021
Analytical methods
- Phosphorus by Colorimetry
- 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
Monitoring station identifiers (2)
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