Crooked Lake
Barry County, Michigan668 acresView mapDirections
Not Rated: one monitoring station are on record, but they measured water clarity only. LakeQuality’s A–F method grades total phosphorus, total nitrogen, chlorophyll-a, and turbidity; clarity is shown, not scored.
- Public access
- Limited data
Crooked Lake in Barry County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 12 ft visibility. Surface area: 667.7 acres.
- Clarity
- 12 ft
- Area
- 668 acres
- Trend
- ↓ Declining
- Public access
- Yes
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Watch Crooked Lake’s letter
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Free interactive depth-contour map of Crooked Lake, reaching a maximum surveyed depth of 12 ft. Toggle Depth contours to overlay the bathymetric survey lines. Contour data from Michigan DNR.
Why Crooked Lake has no grade
Crooked Lake has monitoring on record from one station, but only water clarity was measured. LakeQuality’s A–F letter uses total phosphorus, total nitrogen, chlorophyll-a, and turbidity against EPA National Lakes Assessment condition classes. With none of those grading measurements on record, Crooked Lake is Not Rated — not an F. Its 12-foot median from 78 readings collected 2016–2022 is still shown as clarity, but clarity alone cannot earn a letter.
Not Rated is EPA Integrated Reporting Category 3 — insufficient information. 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.
Crooked Lake is a 668-acre lake in Barry County, Michigan. Overall water quality is declining over recent sampling years. The lake supports 27 documented fish species including Bluegill, Bluntnose minnow, and Brown bullhead. Public access is available.
Source: EPA Water Quality Portal sampling records, EGLE, last sampled 2022-09-12. Grade methodology: LakeQuality methodology.
What Crooked Lake is good for
From access and monitoring records, not editorial picks.
- Clear water12 ft of visibility
- Fishing27 species recorded
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Check local advisories before you swim.
Water quality measurements for Crooked Lake
These readings exist but are not enough for an A–F grade — see why.
Good clarity, visible to about 12 ft. TSI 41.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 12 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 41 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 668 acres |
| Public Access | Yes |
No bathymetric survey has been published for Crooked Lake, so its depth is not documented here.
Fish Species
Click a species to see every graded lake where it is documented.
Fishing Crooked Lake
Water Quality Trend: ↓ Declining
Based on 7 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | → Stable | +0.042 m/yr | 7 |
| Phosphorus | ↓ Declining | +1.21 µg/L/yr | 7 |
| Chlorophyll-a | ↓ Declining | +0.19 µg/L/yr | 7 |
Regulated Pollution Sources Nearby
1 EPA-permitted facility operate within about 5 miles of Crooked Lake under Clean Water Act (NPDES) discharge permits. 1 facility has a reported Clean Water Act violation in the past three years.
- Southwest Barry CountyDelton · 1.1 mi away · NPDES MIG960015Recent violation
Facilities permitted to discharge under the Clean Water Act within ~5 miles; proximity does not by itself mean a facility affects this lake. Source: EPA ECHO (ICIS-NPDES), as of 2026-07.
Graded lakes near Crooked Lake
Crooked Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Barry County
Frequently asked questions about Crooked Lake
Where is Crooked Lake?
- Crooked Lake is a lake in Barry County, Michigan. LakeQuality has not rated this lake (UNRATED) — the only measurement available is water clarity, which is not a water-quality indicator on its own — EPA's National Lakes Assessment does not grade clarity.
What is the water quality grade for Crooked Lake?
- Crooked Lake in Barry County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 12 ft visibility. Surface area: 667.7 acres.
Is Crooked Lake safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
What fish are in Crooked Lake?
- Fish species found in Crooked Lake include Bluegill, Bluntnose minnow, Brown bullhead, Central mudminnow, Common shiner, Emerald shiner, Iowa darter, Johnny darter, Lake herring, Largemouth bass, Longnose gar, Mimic shiner, Mottled sculpin, Northern logperch, Northern pike, Pumpkinseed, Rainbow trout, Rock bass, Sand shiner, Silver lamprey, Smallmouth bass, Spottail shiner, Walleye, Western banded killifish, White sucker, Yellow bullhead, Yellow perch. Crooked Lake is located in Barry County, Michigan.
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Where this data comes from
78 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
NALMS78 samples · 2016–2022
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
Regulated discharger data from EPA ECHO (ICIS-NPDES)