Saguache County, Colorado · Water Quality Report Card
Dome Lake Lower
Dome Lake Lower in Saguache County, Colorado is not rated for water quality — its monitoring record does not meet the evidence bar. Phosphorus: 68 µg/L. Chlorophyll-a (algae): 5.2 µg/L.
- Type
- Eutrophic
Dome Lake Lower is a productive, nutrient-rich eutrophic lake in Saguache County, Colorado.
Source: EPA Water Quality Portal sampling records, CDPHE, last sampled 2021-07-27. Grade methodology: LakeGrade methodology.
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Swimming Safety
Not rated for swimming — there is not enough monitoring data to judge this lake
Water Quality Grade: Not rated
No clarity data. Phosphorus level: 68 µg/L. Chlorophyll-a: 5.2 µg/L. Trophic State Index: 56.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No data | |
| Phosphorus | 68 µg/L | |
| Chlorophyll-a (Algae) | 5.2 µg/L | |
| Trophic State Index (TSI) | 56 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Dome Lake Lower
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Fishing Dome Lake Lower
Location
Nearby Lakes in Saguache County
Explore Dome Lake Lower across LakeGrade
Planning a trip around Curecanti?
Dome Lake Lower is about 37 miles from Curecanti National Recreation Area. Crowds there swing hard by season, so the month you pick changes both how busy the park is and what lodging costs.
Best time to visit Curecanti →More Colorado Lake Rankings
Other Lakes in Colorado
Eutrophic Lakes in Colorado
More records, surveys & data sources
Where this data comes from
3 measurements from 1 monitoring station, 2021. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Colorado Dept. of Public Health & Environment-WQCD
21COL001_WQX3 samples · 2021
Analytical methods
- Phosphorus by Colorimetry
- 10200 H ~ Chlorophyll a-b-c Determination
- Nitrogen in Water by Pyrolysis Detection
Monitoring station identifiers (1)
Grade thresholds come from the U.S. EPA National Lakes Assessment 2022 Technical Support Document (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated.
Data Sources
Water quality data from the EPA Water Quality Portal
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion
Most recent sample: 2021-07-27
Monitoring stations: 1