Pretty Lake Central Basin; Martiny Township
Pretty Lake Central Basin; Martiny Township in Mecosta County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Maximum depth: 22 ft. Surface area: 116.5 acres.
- Max depth
- 22 ft
- Area
- 117 acres
- Public access
- Yes
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Why Pretty Lake Central Basin; Martiny Township 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 Pretty Lake Central Basin; Martiny Township, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years).
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.
Pretty Lake Central Basin; Martiny Township is a 117-acre lake in Mecosta County, Michigan with a maximum depth of 22 feet. Limited fish-species data available. Public access is available with 6 public boat landings.
Source: EPA Water Quality Portal sampling records, EGLE, last sampled 2016-05-20. Grade methodology: LakeQuality methodology.
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Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Compare the safest swimming lakes near Grand Rapids →
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Water quality measurements for Pretty Lake Central Basin; Martiny Township
These readings exist but are not enough for an A–F grade — see why.
No clarity data.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples |
Where to stay near Pretty Lake Central Basin; Martiny Township
Compare lakeside cabins, hotels, and vacation rentals near Pretty Lake Central Basin; Martiny Township in Mecosta 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 | 22 ft |
| Surface Area | 117 acres |
| Public Access | Yes |
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Recreation & Access
Fishing Pretty Lake Central Basin; Martiny Township
EPA Impairment Status
Pretty Lake Central Basin; Martiny Township is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit MI040601020801-03 · Official waterbody report · Matched by proximity (2.92 km)
Graded lakes near Pretty Lake Central Basin; Martiny Township
Pretty Lake Central Basin; Martiny Township has no grade, but these lakes within a short drive do.
Nearby Lakes in Mecosta County
Frequently asked questions about Pretty Lake Central Basin; Martiny Township
Where is Pretty Lake Central Basin; Martiny Township?
- Pretty Lake Central Basin; Martiny Township is a lake in Mecosta County, Michigan. LakeQuality has not rated this lake (UNRATED) — there is not enough recent sampling to assign a letter.
What is the water quality grade for Pretty Lake Central Basin; Martiny Township?
- Pretty Lake Central Basin; Martiny Township in Mecosta County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Maximum depth: 22 ft. Surface area: 116.5 acres.
Is Pretty Lake Central Basin; Martiny Township safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Pretty Lake Central Basin; Martiny Township 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 Pretty Lake Central Basin; Martiny Township?
- Pretty Lake Central Basin; Martiny Township has a maximum depth of 22 feet. The lake covers 116.5 acres.
Are there boat ramps on Pretty Lake Central Basin; Martiny Township?
- Pretty Lake Central Basin; Martiny Township has 6 documented boat landings in the USGS National Boat Ramps inventory. Public access is listed as yes.
Explore Pretty Lake Central Basin; Martiny Township across LakeQuality
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Where this data comes from
2 measurements from 1 monitoring station, 2016. Retrieved from the EPA Water Quality Portal on 2026-08-26.
Collected and reported by
- Michigan EGLE - MiCorps
21MICH_MICORPS2 samples · 2016
Analytical methods
- Phosphorus by Colorimetry
- 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database
Lake size & watershed from HydroLAKES (HydroSHEDS)
Named boat-access points from the USGS National Boat Ramps inventory