Tempe Town Lake
Maricopa County, Arizona214 acresView mapDirections
Not enough samples to grade — no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). No letter yet. Here is what we do have.
- Public access
- Limited data
Tempe Town Lake in Maricopa County, Arizona is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 214 acres.
- Area
- 214 acres
- Trend
- ↓ Declining
- Public access
- Yes
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Watch Tempe Town Lake’s letter
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Why Tempe Town Lake has no grade
We grade a lake only when the monitoring record supports a letter: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Tempe Town Lake, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years).
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by ADEQ and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Tempe Town Lake is a 214-acre lake in Maricopa County, Arizona. Overall water quality is declining over recent sampling years. Limited fish-species data available. Public access is available with 4 public boat landings.
Source: EPA Water Quality Portal sampling records, ADEQ, last sampled 2026-04-09. Grade methodology: LakeQuality methodology.
What Tempe Town Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch4 documented ramps
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Check local advisories before you swim.
Water quality measurements for Tempe Town Lake
These readings exist but are not enough for an A–F grade — see why.
No clarity data.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples |
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 214 acres |
| Public Access | Yes |
No bathymetric survey has been published for Tempe Town Lake, so its depth is not documented here.
Recreation & Access
- Tempe Town Lake - 1Public
- Tempe Town Lake - 2Public
- Tempe Town Lake - 3Public
- Tempe Town Lake - 4Public
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Tempe Town Lake
Water Quality Trend: ↓ Declining
Based on 2 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.14 m/yr | 2 |
Reservoir Info (USACE NID)
Tempe Town Lake is a man-made reservoir impounded by the Rio Salado Town Lake (completed 1997), built primarily for recreation on the Salt River; other-type dam, 40 ft tall and 902 ft long.
- Surface area
- 214 ac
- Normal storage
- 2,419 ac-ft
- Max storage
- 2,846 ac-ft
- Drainage area
- 13,000 sq mi
- Hazard class
- Significant
- Owner
- CITY OF TEMPE
Source: USACE National Inventory of Dams, NID ID AZ00236 · Operator website
Graded lakes near Tempe Town Lake
Tempe Town Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Maricopa County
Frequently asked questions about Tempe Town Lake
Where is Tempe Town Lake?
- Tempe Town Lake is a lake in Maricopa County, Arizona. LakeQuality has not rated this lake (UNRATED) — no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years).
What is the water quality grade for Tempe Town Lake?
- Tempe Town Lake in Maricopa County, Arizona is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 214 acres.
Is Tempe Town Lake safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
Are there boat ramps on Tempe Town Lake?
- Tempe Town Lake has 4 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Tempe Town Lake - 1, Tempe Town Lake - 2, Tempe Town Lake - 3, Tempe Town Lake - 4. Public access is listed as yes.
Explore Tempe Town Lake across LakeQuality
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Where this data comes from
9 measurements from 2 monitoring stations, 2021–2026. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Great Lakes Environmental Center
GLEC9 samples · 2021–2026
Analytical methods
- 4500 P E ~ Phosphorus in Water by Colorimetry- Ascorbic Acid Method
- 300.0 ~ EPA; Determination of Inorganic Anions by Ion Chromatography
Monitoring station identifiers (2)
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
Named boat-access points from the USGS National Boat Ramps inventory