Lake Powell Off Davis Gulch
Kane County, UtahView mapDirections
Clarity, phosphorus, and algae sit in the clean band for this region.
↓ down from A at the last regrade
- Oligotrophic
- #2 of 6 in the county
Lake Powell Off Davis Gulch in Kane County, Utah has a water quality grade of B (Good). Water clarity: 15.4 ft visibility. Phosphorus: 13.1 µg/L.
- Clarity
- 15.4 ft
- Type
- Oligotrophic
- Phosphorus
- 13.1 µg/L
- Trend
- ↑ Improving
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Watch Lake Powell Off Davis Gulch’s letter
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Lake Powell Off Davis Gulch is a cold, clear oligotrophic lake in Kane County, Utah. Water quality is graded B based on 1 sampling years through 2025. Overall water quality is improving over recent sampling years. Compared to the 5 other monitored lakes in Kane County, Lake Powell Off Davis Gulch ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, Utah DWQ, last sampled 2025-06-26. Grade methodology: LakeQuality methodology.
What Lake Powell Off Davis Gulch is good for
From access and monitoring records, not editorial picks.
- Clear water15.4 ft of visibility
Swimming Safety
Grade onlyLow algae
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 B is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
Water Quality Grade: B (Good)
Crystal clear, you can see 15.4 ft down. Phosphorus 13.1 µg/L. TSI 39. The letter is not a swimming clearance.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 15.4 ft | Not graded |
| Phosphorus | 13.1 µg/L | Good |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 39 | Oligotrophic |
Low nutrients, clear water. The letter is not a swimming clearance.
Fishing Lake Powell Off Davis Gulch
Water Quality Trend: ↑ Improving
Based on 8 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | → Stable | +0.004 m/yr | 8 |
| Phosphorus | ↑ Improving | -1.12 µg/L/yr | 5 |
County Ranking
Ranked #2 of 6 lakes in Kane County
Nearby Lakes in Kane County
Frequently asked questions about Lake Powell Off Davis Gulch
Where is Lake Powell Off Davis Gulch?
- Lake Powell Off Davis Gulch is a lake in Kane County, Utah. LakeQuality grades it B for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Lake Powell Off Davis Gulch?
- Lake Powell Off Davis Gulch in Kane County, Utah has a water quality grade of B (Good). Water clarity: 15.4 ft visibility. Phosphorus: 13.1 µg/L.
Is Lake Powell Off Davis Gulch safe to swim in?
- The B is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
Explore Lake Powell Off Davis Gulch across LakeQuality
Species activity outlook by water temperature and season
Where to stay at Utah's top lakes, each with its grade
Low nutrients, clear water. The letter is not a swimming clearance.
Utah's cleanest and most-polluted lakes, ranked
More Utah Lake Rankings
Other Grade B Lakes in Utah
Oligotrophic Lakes in Utah
Where this data comes from
191 measurements from 1 monitoring station, 2012–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Utah Department Of Environmental Quality
UTAHDWQ_WQX191 samples · 2012–2025
Analytical methods
- Field Measurements
- Phosphorus by Colorimetry
- Turbidiy determined in the field
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.