Three Rivers Imp.
Three Rivers Imp. in St. Joseph County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 491.2 acres.
- Area
- 491 acres
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Water clarity at Three Rivers Imp.
Murky water. Across summers from 2018 to 2023, Three Rivers Imp. averaged 1.23 m (4 ft) of visibility down into the water, so you cannot see far below the surface in midsummer. This lake sits close to the line between clarity classes, so treat the label as approximate and the depth reading as the real number.
Nobody has taken a water sample here that we can find. Michigan's environmental agency measures clarity on lakes like this one from satellite images instead, which is why this page reports how clear the water is but carries no A–F grade.
Clear is not the same as clean. A lake can be easy to see through and still carry high nutrient levels, and a naturally tea-stained lake can be perfectly healthy. The A–F grade on other lakes is built from phosphorus and algae measured in a laboratory, and clarity alone cannot stand in for it.
The same satellite images put summer algae here at roughly 18.2 micrograms per litre. Estimating algae from orbit is far less exact than measuring clarity, so that figure is worth knowing and is not part of any rating.
Three Rivers Imp. is a 491-acre lake in St. Joseph County, Michigan.
Source: EPA Water Quality Portal sampling records, EGLE, 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 Three Rivers Imp.
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 Three Rivers Imp.
Compare lakeside cabins, hotels, and vacation rentals near Three Rivers Imp. in St. Joseph County, Michigan — 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.
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 491 acres |
| Shoreline Length | 2 mi |
The published depth figures for Three Rivers Imp. contradict each other, so no depth is shown.
Fishing Three Rivers Imp.
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Frequently asked questions about Three Rivers Imp.
Where is Three Rivers Imp.?
- Three Rivers Imp. is a lake in St. Joseph County, Michigan. LakeQuality has not rated this lake (UNRATED) — no in-situ water sample; this lake is rated for water clarity from satellite observations instead.
What is the water quality grade for Three Rivers Imp.?
- Three Rivers Imp. in St. Joseph County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 491.2 acres.
Is Three Rivers Imp. safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Three Rivers Imp. is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
How deep is Three Rivers Imp.?
- The published depth figures for Three Rivers Imp. contradict each other, so no depth is shown. The lake covers 491.2 acres.
Explore Three Rivers Imp. across LakeQuality
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Where this data comes from
Measurements for Three Rivers Imp. come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.