North Crooked Lake
Kalkaska County, Michigan24 acresView mapDirections
EGLE publishes the water-quality measurements for North Crooked Lake. Here is what has been measured.
- Limited data
North Crooked Lake in Kalkaska County, Michigan has water-quality measurements published by EGLE, shown here as reported. Water clarity: 14 ft visibility. Surface area: 23.5 acres.
North Crooked Lake is a 24-acre lake in Kalkaska County, Michigan. Water clarity is improving over recent sampling years. The lake supports 6 documented fish species including Golden shiner, Iowa darter, and Smallmouth bass.
Source: EPA Water Quality Portal sampling records, EGLE, last sampled 2022-09-10. Methodology: how these readings are compared.
What North Crooked Lake is good for
From access and monitoring records, not editorial picks.
- Clear water14 ft of visibility
- Fishing6 species recorded
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether North Crooked Lake is safe to swim in today is a call for the Michigan Department of Environment, Great Lakes, and Energy (EGLE) and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for North Crooked Lake
These are the measurements EGLE publishes for North Crooked Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Good clarity, visible to about 14 ft. TSI 39.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 14ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | No reading The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. | |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 39 | Oligotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Low nutrients, clear water. No reading is a swimming clearance.
Ask about North Crooked Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
24 acres
No bathymetric survey has been published for North Crooked Lake, so its depth is not documented here.
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Stays near North Crooked Lake
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Fish Species
Click a species to see every lake where it is documented.
Fishing North Crooked Lake
Water Quality Trend: Stable
Based on 7 years of monitoring (2016–2023).
Water clarity
Improving7 years
Phosphorus
Stable+0.02 µg/L/yr6 years
Chlorophyll-a
Worsening+0.05 µg/L/yr5 years
Nearby Lakes in Kalkaska County
Frequently asked questions about North Crooked Lake
Where is North Crooked Lake?
- North Crooked Lake is a lake in Kalkaska County, Michigan. Its water-quality measurements are published by EGLE and shown on this page as reported.
What is the water quality of North Crooked Lake?
- North Crooked Lake in Kalkaska County, Michigan has water-quality measurements published by EGLE, shown here as reported. Water clarity: 14 ft visibility. Surface area: 23.5 acres.
Is North Crooked Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
What fish are in North Crooked Lake?
- Fish species found in North Crooked Lake include Golden shiner, Iowa darter, Smallmouth bass, Western banded killifish, White sucker, Yellow perch. North Crooked Lake is located in Kalkaska County, Michigan.
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Where this data comes from
64 measurements from 1 monitoring station, 2016–2022. Retrieved from the EPA Water Quality Portal on 2026-08-26.
Collected and reported by
- North American Lake Management Society
NALMS64 samples · 2016–2022
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.