Old Channel Lake
Sullivan County, Indiana55 acresView mapDirections
Not enough samples to grade — no water-quality sampling on record for this lake. No letter yet. Here is what we do have.
Old Channel Lake in Sullivan County, Indiana is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 55 acres.
- Area
- 55 acres
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Watch Old Channel Lake’s letter
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Why Old Channel 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 Old Channel 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 IDEM and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Old Channel Lake is a 55-acre lake in Sullivan County, Indiana.
Source: EPA Water Quality Portal sampling records, IDEM, last sampled recent years. Grade methodology: LakeQuality methodology.
Swimming Safety
Not ratedElevated nutrients
The letter is not a swimming clearance. Check local advisories before you swim.
Water quality measurements for Old Channel Lake
These readings exist but are not enough for an A–F grade — see why.
No clarity data. TSI 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) |
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 55 acres |
No bathymetric survey has been published for Old Channel Lake, so its depth is not documented here.
Fishing Old Channel Lake
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Frequently asked questions about Old Channel Lake
Where is Old Channel Lake?
- Old Channel Lake is a lake in Sullivan County, Indiana. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Old Channel Lake?
- Old Channel Lake in Sullivan County, Indiana is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 55 acres.
Is Old Channel Lake safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
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Where this data comes from
Measurements for Old Channel Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.