Fourth Saint John Pond
Fourth Saint John Pond in Somerset County, Maine is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 194 acres.
- Area
- 194 acres
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Why Fourth Saint John 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 Fourth Saint John 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.
Fourth Saint John Pond is a 194-acre lake in Somerset County, Maine.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled recent years. Grade methodology: LakeQuality methodology.
Watch Fourth Saint John 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 Fourth Saint John 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 Fourth Saint John Pond
Compare lakeside cabins, hotels, and vacation rentals near Fourth Saint John Pond in Somerset County, Maine — 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 Fourth Saint John Pond
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 194 acres |
No bathymetric survey has been published for Fourth Saint John Pond, so its depth is not documented here.
Fishing Fourth Saint John Pond
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Frequently asked questions about Fourth Saint John Pond
Where is Fourth Saint John Pond?
- Fourth Saint John Pond is a lake in Somerset County, Maine. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Fourth Saint John Pond?
- Fourth Saint John Pond in Somerset County, Maine is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 194 acres.
Is Fourth Saint John Pond safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Fourth Saint John 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 Fourth Saint John Pond across LakeQuality
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Where this data comes from
Measurements for Fourth Saint John Pond come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.