Cedar Grove Reservoir
Cedar Grove Reservoir in Essex County, New Jersey is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 92 acres.
- Area
- 92 acres
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Why Cedar Grove Reservoir has no grade
We grade a lake only when the monitoring record supports a letter: 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 Cedar Grove Reservoir, no water-quality sampling on record for this lake.
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.
Cedar Grove Reservoir is a 92-acre lake in Essex County, New Jersey.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled recent years. Grade methodology: LakeQuality methodology.
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Swimming Safety
Not ratedElevated nutrients
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Cedar Grove Reservoir
These readings exist but are not enough for an A–F grade — see why.
No clarity data. Trophic State Index: undefined.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) |
Where to stay near Cedar Grove Reservoir
Compare lakeside cabins, hotels, and vacation rentals near Cedar Grove Reservoir in Essex 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 Cedar Grove Reservoir
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 92 acres |
No bathymetric survey has been published for Cedar Grove Reservoir, so its depth is not documented here.
Fishing Cedar Grove Reservoir
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Frequently asked questions about Cedar Grove Reservoir
Where is Cedar Grove Reservoir?
- Cedar Grove Reservoir is a lake in Essex County, New Jersey. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Cedar Grove Reservoir?
- Cedar Grove Reservoir in Essex County, New Jersey is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 92 acres.
Is Cedar Grove Reservoir safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Cedar Grove Reservoir is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
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Where this data comes from
Measurements for Cedar Grove Reservoir come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.