Dome Lake Lower
Saguache County, Colorado75 acresView mapDirections
Colorado WQCD publishes the water-quality measurements for Dome Lake Lower. Here is what has been measured.
- Limited data
Dome Lake Lower in Saguache County, Colorado has water-quality measurements published by Colorado WQCD, shown here as reported. Phosphorus: 68 µg/L. Chlorophyll-a (algae): 5.2 µg/L. Surface area: 75 acres.
Dome Lake Lower is a 75-acre lake in Saguache County, Colorado.
Source: EPA Water Quality Portal sampling records, CDPHE, last sampled 2021-07-27. Methodology: how these readings are compared.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Dome Lake Lower is safe to swim in today is a call for the Water Quality Control Division of the Colorado Department of Public Health and Environment and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Dome Lake Lower
These are the measurements Colorado WQCD publishes for Dome Lake Lower, 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 68 µg/L. Chlorophyll-a 5.2 µg/L. TSI 56.
| 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 | 68µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | 5.2µg/L | Measured, not scored 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. | 56 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Dome Lake Lower
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
75 acres
No bathymetric survey has been published for Dome Lake Lower, so its depth is not documented here.
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Fishing Dome Lake Lower
Reservoir Info (USACE NID)
Dome Lake Lower is a man-made reservoir impounded by the Upper Dome (completed 1975), built primarily for fish and wildlife pond on the Cochtopa Creek-Tr; earth-type dam, 50 ft tall and 540 ft long.
- Surface area
- 75 ac
- Normal storage
- 880 ac-ft
- Max storage
- 1,330 ac-ft
- Drainage area
- 60 sq mi
- Hazard class
- Low
- Owner
- COLORADO PARKS AND WILDLIFE
All listed purposes: Fish and Wildlife Pond;Recreation.
Source: USACE National Inventory of Dams, NID ID CO00799 · Operator website · Matched by proximity (0.37 km)
Nearby Lakes in Saguache County
Frequently asked questions about Dome Lake Lower
Where is Dome Lake Lower?
- Dome Lake Lower is a lake in Saguache County, Colorado. Its water-quality measurements are published by Colorado WQCD and shown on this page as reported.
What is the water quality of Dome Lake Lower?
- Dome Lake Lower in Saguache County, Colorado has water-quality measurements published by Colorado WQCD, shown here as reported. Phosphorus: 68 µg/L. Chlorophyll-a (algae): 5.2 µg/L. Surface area: 75 acres.
Is Dome Lake Lower safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Explore Dome Lake Lower across LakeQuality
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 lakes in Colorado
Other Lakes in Colorado
Eutrophic Lakes in Colorado
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)
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.