Chaparral Park Lake is a productive, nutrient-rich eutrophic lake in Maricopa County, Arizona. Water quality is graded C based on 1 sampling years through 2026. Compared to the 13 other monitored lakes in Maricopa County, Chaparral Park Lake ranks #6 for water quality.
Source: EPA Water Quality Portal sampling records, Arizona DNR, last sampled 2026-04-07. Grade methodology: LakeGrade methodology.
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Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Very murky, less than 3 ft of visibility. Phosphorus level: 37.5 µg/L. Trophic State Index: 59.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3 ft | F |
| Phosphorus | 37.5 µg/L | C |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 59 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Chaparral Park Lake
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Location
County Ranking
Ranked #6 of 14 lakes in Maricopa County
Nearby Lakes in Maricopa County
Explore Chaparral Park Lake across LakeGrade
More Arizona Lake Rankings
Other Grade C 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: 2026-04-07
Monitoring stations: 1