Mittry Lake
Yuma County, ArizonaView mapDirections
ADEQ publishes the water-quality measurements for Mittry Lake. Here is what has been measured.
- Public access
- Limited data
Mittry Lake in Yuma County, Arizona has water-quality measurements published by ADEQ, shown here as reported. Phosphorus: 20 µg/L.
Mittry Lake is a lake in Yuma County, Arizona. Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, ADEQ, last sampled 2026-03-24. Methodology: how these readings are compared.
What Mittry Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Mittry Lake is safe to swim in today is a call for the Arizona Department of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Mittry Lake
These are the measurements ADEQ publishes for Mittry Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. Phosphorus 20 µg/L. TSI 47.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | No reading How deep a black-and-white disk stays visible from the surface. Higher is clearer. | |
| Total phosphorus | 20µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 47 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Mittry Lake
Answers come straight from the public measurements and survey records on this page.
Recreation & Access
- Mittry LakePublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Stays via Stay22
Stays near Mittry Lake
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Fishing Mittry Lake
Nearby Lakes in Yuma County
Frequently asked questions about Mittry Lake
Where is Mittry Lake?
- Mittry Lake is a lake in Yuma County, Arizona. Its water-quality measurements are published by ADEQ and shown on this page as reported.
What is the water quality of Mittry Lake?
- Mittry Lake in Yuma County, Arizona has water-quality measurements published by ADEQ, shown here as reported. Phosphorus: 20 µg/L.
Is Mittry Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Are there boat ramps on Mittry Lake?
- Mittry Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Mittry Lake. Public access is listed as yes.
Can I fish at Mittry Lake?
- Mittry Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Arizona's fish and wildlife agency, so check its current regulations before you go.
Explore Mittry Lake across LakeQuality
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Where this data comes from
16 measurements from 4 monitoring stations, 2014–2026. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- USGS Arizona Water Science Center
USGS-AZ13 samples · 2014–2015 - Great Lakes Environmental Center
GLEC3 samples · 2026
Analytical methods
- Phosphorus, wu, microKJ ASF, H+
- 4500 P E ~ Phosphorus in Water by Colorimetry- Ascorbic Acid Method
- 300.0 ~ EPA; Determination of Inorganic Anions by Ion Chromatography
Monitoring station identifiers (4)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Named boat-access points from the USGS National Boat Ramps inventory