Alton Pond
Alton Pond in Washington County, Rhode Island is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 44 acres.
- Area
- 44 acres
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Why Alton Pond 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 Alton Pond, 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.
Alton Pond is a 44-acre lake in Washington County, Rhode Island.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled recent years. Grade methodology: LakeQuality methodology.
Watch Alton Pond water quality
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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 Alton Pond
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 Alton Pond
Compare lakeside cabins, hotels, and vacation rentals near Alton Pond in Washington 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 Alton Pond
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 44 acres |
No bathymetric survey has been published for Alton Pond, so its depth is not documented here.
Fishing Alton Pond
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Frequently asked questions about Alton Pond
Where is Alton Pond?
- Alton Pond is a lake in Washington 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 Alton Pond?
- Alton Pond in Washington County, Rhode Island is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 44 acres.
Is Alton Pond safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Alton Pond is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Explore Alton Pond across LakeQuality
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Where this data comes from
Measurements for Alton Pond come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.