Lake Glenn Shoals
Lake Glenn Shoals in Montgomery County, Illinois is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 1097 acres.
- Area
- 1,097 acres
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Why Lake Glenn Shoals 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 Lake Glenn Shoals, 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 Illinois EPA and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Lake Glenn Shoals is a 1,097-acre lake in Montgomery County, Illinois.
Source: EPA Water Quality Portal sampling records, Illinois EPA, last sampled recent years. Grade methodology: LakeQuality methodology.
Watch Lake Glenn Shoals 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 Lake Glenn Shoals
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 Lake Glenn Shoals
Compare lakeside cabins, hotels, and vacation rentals near Lake Glenn Shoals in Montgomery County, Illinois — 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 Lake Glenn Shoals
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 1,097 acres |
No bathymetric survey has been published for Lake Glenn Shoals, so its depth is not documented here.
Fishing Lake Glenn Shoals
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Frequently asked questions about Lake Glenn Shoals
Where is Lake Glenn Shoals?
- Lake Glenn Shoals is a lake in Montgomery County, Illinois. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Lake Glenn Shoals?
- Lake Glenn Shoals in Montgomery County, Illinois is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 1097 acres.
Is Lake Glenn Shoals safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Lake Glenn Shoals is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Explore Lake Glenn Shoals across LakeQuality
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Where this data comes from
Measurements for Lake Glenn Shoals come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.