Green Bayou
Green Bayou in Lee County, Iowa is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 103 acres.
- Area
- 103 acres
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Why Green Bayou 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 Green Bayou, 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 Iowa DNR and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Green Bayou is a 103-acre lake in Lee County, Iowa.
Source: EPA Water Quality Portal sampling records, Iowa DNR, 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 Green Bayou
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 Green Bayou
Compare lakeside cabins, hotels, and vacation rentals near Green Bayou in Lee County, Iowa — 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 Green Bayou
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 103 acres |
No bathymetric survey has been published for Green Bayou, so its depth is not documented here.
Fishing Green Bayou
Nearby Lakes in Lee County
Frequently asked questions about Green Bayou
Where is Green Bayou?
- Green Bayou is a lake in Lee County, Iowa. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Green Bayou?
- Green Bayou in Lee County, Iowa is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 103 acres.
Is Green Bayou safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Green Bayou 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 Green Bayou come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.