Hidden Lake is a productive, nutrient-rich eutrophic lake in Maricopa County, Arizona. Water quality is graded D based on 1 sampling years through 2022. Compared to the 13 other monitored lakes in Maricopa County, Hidden Lake ranks #14 for water quality.
Source: EPA Water Quality Portal sampling records, Arizona DNR, last sampled 2022-07-28. Grade methodology: LakeGrade methodology.
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Swimming Safety
Swimming not recommended, poor water quality with high algae risk
Water Quality Grade: D, Poor
No clarity data. Phosphorus level: 90 µg/L. Trophic State Index: 69.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No data | |
| Phosphorus | 90 µg/L | D |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 69 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Hidden Lake
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Fishing Hidden Lake
Location
County Ranking
Ranked #14 of 14 lakes in Maricopa County
Nearby Lakes in Maricopa County
Explore Hidden Lake across LakeGrade
More Arizona Lake Rankings
Other Grade D 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: 2022-07-28
Monitoring stations: 1