Lake Powell Goodhope Bay Midchannel
Garfield County, UtahView mapDirections
This is the name Utah DWQ records for this water. It can describe one sampling location rather than the water as a whole.
Utah DWQ publishes the water-quality measurements for Lake Powell Goodhope Bay Midchannel. Here is what has been measured.
- Eutrophic
Lake Powell Goodhope Bay Midchannel in Garfield County, Utah has water-quality measurements published by Utah DWQ, shown here as reported. Water clarity: 6.1 ft visibility. Phosphorus: 26 µg/L.
Lake Powell Goodhope Bay Midchannel is a productive, nutrient-rich eutrophic lake in Garfield County, Utah. Overall water quality is declining over recent sampling years. Compared to the 9 other monitored lakes in Garfield County, Lake Powell Goodhope Bay Midchannel ranks #5 for water quality.
Source: EPA Water Quality Portal sampling records, Utah DWQ, last sampled 2025-06-25. Methodology: how these readings are compared.
Swimming conditions
Readings onlyLow algae
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Lake Powell Goodhope Bay Midchannel is safe to swim in today is a call for the Utah Division of Water Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Lake Powell Goodhope Bay Midchannel
These are the measurements Utah DWQ publishes for Lake Powell Goodhope Bay Midchannel, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Murky, only visible to about 6.1 ft. Phosphorus 26 µg/L. TSI 51.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 6.1ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 26µg/L | Good GoodFairPoor |
| 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. | 51 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
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Fishing Lake Powell Goodhope Bay Midchannel
Water Quality Trend: Worsening
Based on 8 years of monitoring (2013–2025).
Water clarity
Worsening8 years
Phosphorus
Worsening+0.67 µg/L/yr5 years
Nearby Lakes in Garfield County
Frequently asked questions about Lake Powell Goodhope Bay Midchannel
Where is Lake Powell Goodhope Bay Midchannel?
- Lake Powell Goodhope Bay Midchannel is in Garfield County, Utah. This is the name Utah DWQ records for this water. It can describe one sampling location rather than the water as a whole. Its water-quality measurements are published by Utah DWQ and shown on this page as reported.
What is the water quality of Lake Powell Goodhope Bay Midchannel?
- Lake Powell Goodhope Bay Midchannel in Garfield County, Utah has water-quality measurements published by Utah DWQ, shown here as reported. Water clarity: 6.1 ft visibility. Phosphorus: 26 µg/L.
Is Lake Powell Goodhope Bay Midchannel safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Explore Lake Powell Goodhope Bay Midchannel across LakeQuality
More lakes in Utah
Other Lakes in Utah
Eutrophic Lakes in Utah
Where this data comes from
205 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_WQX205 samples · 2012–2025
Analytical methods
- Field Measurements
- Phosphorus by Colorimetry
- Turbidiy determined in the field
Monitoring station identifiers (1)
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.