Crescent Lake is a productive, nutrient-rich eutrophic lake in Apache County, Arizona. Water quality is graded F based on 1 sampling years through 2026. Compared to the 10 other monitored lakes in Apache County, Crescent Lake ranks #11 for water quality.
Source: EPA Water Quality Portal sampling records, Arizona DNR, last sampled 2026-03-22. Grade methodology: LakeGrade methodology.
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Swimming Safety
Avoid swimming, very poor water quality, potential algae toxins
Water Quality Grade: F, Very Poor
Murky, only visible to about 5.4 ft. Phosphorus level: 180 µg/L. Trophic State Index: 66.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 5.4 ft | C |
| Phosphorus | 180 µg/L | F |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 66 | Eutrophic |
High nutrients, frequent algae, reduced clarity
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Fishing Crescent Lake
Location
County Ranking
Ranked #11 of 11 lakes in Apache County
Cleaner Lakes Within 30 Miles
Crescent Lake holds Grade F. One nearby lake has a higher grade.
Nearby Lakes in Apache County
Explore Crescent Lake across LakeGrade
More Arizona Lake Rankings
Other Grade F Lakes in Arizona
Eutrophic Lakes in Arizona
More records, surveys & data sources
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2026-03-22
Monitoring stations: 1