Sunris Park Lake
Yuma County, ArizonaView mapDirections
Nutrients and algae run above the regional average.
- Hypereutrophic
- #1 of 1 in the county
- Public access
Sunris Park Lake in Yuma County, Arizona has a water quality grade of D (Nutrient-rich). Phosphorus: 98.5 µg/L.
- Type
- Hypereutrophic
- Phosphorus
- 98.5 µg/L
- Trend
- ↓ Declining
- Public access
- Yes
Stays via Stay22
Stays near Sunris Park Lake
Compare lakeside cabins, hotels, and vacation rentals near Sunris Park Lake in Yuma County, Arizona — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water. The water-quality grade measures nutrients and algae, not lodging — cabins and rentals around Sunris Park Lake are listed below.
Top-rated places to stay near Sunris Park Lake
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Watch Sunris Park Lake’s letter
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Sunris Park Lake is a highly nutrient-loaded hypereutrophic lake in Yuma County, Arizona. Water quality is graded D based on 1 sampling years through 2025. Overall water quality is declining over recent sampling years. Limited fish-species data available. Public access is available.
Source: EPA Water Quality Portal sampling records, ADEQ, last sampled 2025-09-03. Grade methodology: LakeQuality methodology.
Swimming Safety
Grade onlyElevated nutrients
Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
The D is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
Water Quality Grade: D (Nutrient-rich)
No clarity data. Phosphorus 98.5 µg/L. TSI 70. The letter is not a swimming clearance.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 98.5 µg/L | Poor |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 70 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Fishing Sunris Park Lake
Water Quality Trend: ↓ Declining
Based on 14 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Phosphorus | ↓ Declining | +3.71 µg/L/yr | 14 |
County Ranking
Ranked #1 of 1 lakes in Yuma County
Nearby Lakes in Yuma County
Frequently asked questions about Sunris Park Lake
Where is Sunris Park Lake?
- Sunris Park Lake is a lake in Yuma County, Arizona. LakeQuality grades it D for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Sunris Park Lake?
- Sunris Park Lake in Yuma County, Arizona has a water quality grade of D (Nutrient-rich). Phosphorus: 98.5 µg/L.
Is Sunris Park Lake safe to swim in?
- The D is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
Explore Sunris Park Lake across LakeQuality
More Arizona Lake Rankings
Other Grade D Lakes in Arizona
Hypereutrophic Lakes in Arizona
Where this data comes from
70 measurements from 1 monitoring station, 2012–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Quechan Tribe of the Fort Yuma Indian Reservation, California & Arizona (Tribal)
QUECHAN_WQX70 samples · 2012–2025
Analytical methods
- Phosphorus by Two Reagent Colorimetry
- Turbidity by Nephelometry
Monitoring station identifiers (1)
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.