Big Bend Lake
Big Bend Lake in Cook County, Illinois is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 25 acres.
- Area
- 25 acres
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Why Big Bend Lake 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 Big Bend Lake, 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.
Big Bend Lake is a 25-acre lake in Cook County, Illinois.
Source: EPA Water Quality Portal sampling records, Illinois EPA, 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 Big Bend Lake
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 Big Bend Lake
Compare lakeside cabins, hotels, and vacation rentals near Big Bend Lake in Cook 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 Big Bend Lake
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 25 acres |
No bathymetric survey has been published for Big Bend Lake, so its depth is not documented here.
Recreation & Access
- Big Bend Lake Boat RampPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Big Bend Lake
Nearby Lakes in Cook County
Frequently asked questions about Big Bend Lake
Where is Big Bend Lake?
- Big Bend Lake is a lake in Cook 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 Big Bend Lake?
- Big Bend Lake in Cook County, Illinois is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 25 acres.
Is Big Bend Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Big Bend Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Are there boat ramps on Big Bend Lake?
- Big Bend Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Big Bend Lake Boat Ramp.
Explore Big Bend Lake across LakeQuality
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Where this data comes from
Measurements for Big Bend Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Named boat-access points from the USGS National Boat Ramps inventory