Fox Mill Lake
Fox Mill Lake in Salem County, New Jersey is not rated for water quality — its monitoring record does not meet the evidence bar. Chlorophyll-a (algae): 131 µg/L. Surface area: 16 acres.
- Area
- 16 acres
Why Fox Mill Lake has no grade
We grade a lake only when its monitoring record clears the evidence bar: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Fox Mill Lake, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). Sampling here has recorded algae (chlorophyll-a), but not water clarity and phosphorus.
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by your state environmental agency and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Fox Mill Lake is a 16-acre lake in Salem County, New Jersey.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2020-10-08. Grade methodology: LakeGrade methodology.
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Swimming Safety
Not ratedBacteria advisory
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Fox Mill Lake
These readings exist but do not meet the evidence bar for an A–F grade — see why.
No clarity data. Chlorophyll-a: 131 µg/L. Trophic State Index: 78.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | 131 µg/L | Not graded |
| Trophic State Index (TSI) | 78 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Where to stay near Fox Mill Lake
Compare lakeside cabins, hotels, and vacation rentals near Fox Mill Lake in Salem 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.
Top-rated places to stay near Fox Mill Lake
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 16 acres |
No bathymetric survey has been published for Fox Mill Lake, so its depth is not documented here.
Fishing Fox Mill Lake
Reservoir Info (USACE NID)
Fox Mill Lake is a man-made reservoir impounded by the Daretown Lake Dam (completed 1915), built primarily for recreation on the Salem River; earth-type dam, 16 ft tall and 575 ft long.
- Surface area
- 16 ac
- Normal storage
- 6 ac-ft
- Drainage area
- 1.8 sq mi
- Hazard class
- Significant
- Owner
- Township of Upper Pittsgrove
Source: USACE National Inventory of Dams, NID ID NJ00107 · Operator website · Matched by proximity (0.02 km)
EPA Impairment Status
Fox Mill Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit NJ02040206030010-01 · Official waterbody report · Matched by proximity (2.04 km)
Graded lakes near Fox Mill Lake
Fox Mill Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Salem County
Frequently asked questions about Fox Mill Lake
Where is Fox Mill Lake?
- Fox Mill Lake is a lake in Salem County, New Jersey. LakeQuality has not rated this lake (UNRATED) — there is not enough recent sampling to assign a letter.
What is the water quality grade for Fox Mill Lake?
- Fox Mill Lake in Salem County, New Jersey is not rated for water quality — its monitoring record does not meet the evidence bar. Chlorophyll-a (algae): 131 µg/L. Surface area: 16 acres.
Is Fox Mill Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Fox Mill Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Algae concentration (chlorophyll-a) is 131 µg/L. Always check local health department advisories before swimming.
Explore Fox Mill Lake across LakeGrade
More New Jersey Lake Rankings
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Where this data comes from
14 measurements from 1 monitoring station, 2020. Retrieved from the EPA Water Quality Portal on 2026-08-21.
Collected and reported by
- USGS New Jersey Water Science Center
USGS-NJ14 samples · 2020
Analytical methods
- Plant pigments, sonication & 445
- HACH 2100Q, NTRU
- YSI EXO turbidity sensor, FNU
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