Slack Reservoir
Slack Reservoir in Providence County, Rhode Island is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 137 acres.
- Area
- 137 acres
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Why Slack 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 Slack 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.
Slack Reservoir is a 137-acre lake in Providence County, Rhode Island.
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 Slack 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 Slack Reservoir
Compare lakeside cabins, hotels, and vacation rentals near Slack Reservoir in Providence County, Rhode Island — 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 Slack Reservoir
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 137 acres |
No bathymetric survey has been published for Slack Reservoir, so its depth is not documented here.
Fishing Slack Reservoir
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Frequently asked questions about Slack Reservoir
Where is Slack Reservoir?
- Slack Reservoir is a lake in Providence County, Rhode Island. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Slack Reservoir?
- Slack Reservoir in Providence County, Rhode Island is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 137 acres.
Is Slack Reservoir safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Slack Reservoir is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Explore Slack Reservoir across LakeQuality
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Where this data comes from
Measurements for Slack Reservoir come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.