Porterfield Lake
Porterfield Lake in Marquette County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 35 acres.
- Area
- 35 acres
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Why Porterfield 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 Porterfield 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.
Porterfield Lake is a 35-acre lake in Marquette County, Michigan.
Source: EPA Water Quality Portal sampling records, EGLE, last sampled recent years. Grade methodology: LakeQuality methodology.
Watch Porterfield 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 Porterfield 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 Porterfield Lake
Compare lakeside cabins, hotels, and vacation rentals near Porterfield Lake in Marquette 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 Porterfield Lake
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 35 acres |
No bathymetric survey has been published for Porterfield Lake, so its depth is not documented here.
Fishing Porterfield Lake
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Frequently asked questions about Porterfield Lake
Where is Porterfield Lake?
- Porterfield Lake is a lake in Marquette 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 Porterfield Lake?
- Porterfield Lake in Marquette County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 35 acres.
Is Porterfield Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Porterfield 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 Porterfield Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.