Holloway Reservoir, S
Holloway Reservoir, S in Genesee County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Maximum depth: 26 ft. Surface area: 68 acres.
- Max depth
- 26 ft
- Area
- 68 acres
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Water clarity at Holloway Reservoir, S
Murky water. Across summers from 2018 to 2023, Holloway Reservoir, S averaged 0.94 m (3 ft) of visibility down into the water, so you cannot see far below the surface in midsummer.
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 34.13 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.
Holloway Reservoir, S is a 68-acre lake in Genesee County, Michigan with a maximum depth of 26 feet (11-foot average).
Source: EPA Water Quality Portal sampling records, EGLE, last sampled recent years. Grade methodology: LakeQuality methodology.
Watch Holloway Reservoir, S 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 Holloway Reservoir, S
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 Holloway Reservoir, S
Compare lakeside cabins, hotels, and vacation rentals near Holloway Reservoir, S in Genesee 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 |
|---|---|
| Maximum Depth | 26 ft |
| Average Depth | 11 ft |
| Surface Area | 68 acres |
| Shoreline Length | 1.6 mi |
Fishing Holloway Reservoir, S
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Frequently asked questions about Holloway Reservoir, S
Where is Holloway Reservoir, S?
- Holloway Reservoir, S is a lake in Genesee 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 Holloway Reservoir, S?
- Holloway Reservoir, S in Genesee County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Maximum depth: 26 ft. Surface area: 68 acres.
Is Holloway Reservoir, S safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Holloway Reservoir, S 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 Holloway Reservoir, S?
- Holloway Reservoir, S has a maximum depth of 26 feet and an average depth of 11 feet. The lake covers 68 acres.
Explore Holloway Reservoir, S across LakeQuality
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Where this data comes from
Measurements for Holloway Reservoir, S come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.