The Sag
The Sag in Ottawa County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 56.7 acres.
- Area
- 57 acres
Next lake in Ottawa County
Swipe left or right on this bar to open the next or previous lake.
Water clarity at The Sag
Murky water. Across summers from 2018 to 2023, The Sag averaged 1.14 m (4 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 26.65 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.
The Sag is a 57-acre lake in Ottawa County, Michigan.
Source: EPA Water Quality Portal sampling records, EGLE, last sampled recent years. Grade methodology: LakeQuality methodology.
Watch The Sag water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Not ratedElevated nutrients
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for The Sag
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 The Sag
Compare lakeside cabins, hotels, and vacation rentals near The Sag in Ottawa 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.
Top-rated places to stay near The Sag
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a whole trip? See where to stay at Michigan’s top lakes →
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 57 acres |
No bathymetric survey has been published for The Sag, so its depth is not documented here.
Fishing The Sag
Nearby Lakes in Ottawa County
Frequently asked questions about The Sag
Where is The Sag?
- The Sag is a lake in Ottawa 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 The Sag?
- The Sag in Ottawa County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 56.7 acres.
Is The Sag safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. The Sag is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Explore The Sag across LakeQuality
Fish species and top-graded lakes across Michigan
Species activity outlook by water temperature and season
Where to stay at Michigan's top lakes, each with its grade
Michigan's cleanest and most-polluted lakes, ranked
More Michigan Lake Rankings
Other Lakes in Michigan
Where this data comes from
Measurements for The Sag come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.