Tempe Town Lake is a productive, nutrient-rich eutrophic lake in Maricopa County, Arizona. Water quality is graded D based on 1 sampling years through 2026. Compared to the 13 other monitored lakes in Maricopa County, Tempe Town Lake ranks #12 for water quality.
Source: EPA Water Quality Portal sampling records, Arizona DNR, last sampled 2026-04-09. 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
Very murky, less than 1.7 ft of visibility. Phosphorus level: 60.5 µg/L. Trophic State Index: 66.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.7 ft | F |
| Phosphorus | 60.5 µg/L | D |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 66 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Tempe Town Lake
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Fishing Tempe Town Lake
Location
County Ranking
Ranked #12 of 14 lakes in Maricopa County
Cleaner Lakes Within 30 Miles
Tempe Town Lake holds Grade D. 3 nearby lakes hold higher grades.
Nearby Lakes in Maricopa County
Explore Tempe Town 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: 2026-04-09
Monitoring stations: 2