Harlow Lake
Harlow Lake in Montcalm County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 29 acres.
- Area
- 29 acres
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Why Harlow 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 Harlow 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 EGLE and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Harlow Lake is a 29-acre lake in Montcalm County, Michigan.
Source: EPA Water Quality Portal sampling records, EGLE, last sampled recent years. Grade methodology: LakeQuality methodology.
Watch Harlow Lake 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 Harlow 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 Harlow Lake
Compare lakeside cabins, hotels, and vacation rentals near Harlow Lake in Montcalm 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 Harlow Lake
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 29 acres |
No bathymetric survey has been published for Harlow Lake, so its depth is not documented here.
Fishing Harlow Lake
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Frequently asked questions about Harlow Lake
Where is Harlow Lake?
- Harlow Lake is a lake in Montcalm County, Michigan. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Harlow Lake?
- Harlow Lake in Montcalm County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 29 acres.
Is Harlow Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Harlow Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
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Where this data comes from
Measurements for Harlow Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.