Eggleston Lake
Delta County, Colorado158 acresView mapDirections
Colorado WQCD publishes the water-quality measurements for Eggleston Lake. Here is what has been measured.
- Eutrophic
- Impaired · Metals (other than mercury)
- 21 ft max depth
- Limited data
Eggleston Lake in Delta County, Colorado has water-quality measurements published by Colorado WQCD, shown here as reported. Water clarity: 4.9 ft visibility. Phosphorus: 233 µg/L. Chlorophyll-a (algae): 11.2 µg/L. Surface area: 158 acres.
Eggleston Lake is a 158-acre productive, nutrient-rich eutrophic lake in Delta County, Colorado with an estimated average depth of about 21 feet. Compared to the 3 other monitored lakes in Delta County, Eggleston Lake ranks #4 for water quality.
Source: EPA Water Quality Portal sampling records, CDPHE, last sampled 2022-09-14. Methodology: how these readings are compared.
Swimming conditions
Readings onlyLimited data
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. Eggleston Lake is listed impaired under Clean Water Act §303(d) (IR 5) for metals (other than mercury), pH / acidity. Check local advisories before you swim.
Whether Eggleston Lake 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 Eggleston Lake
These are the measurements Colorado WQCD publishes for Eggleston Lake, 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 4.9 ft. Phosphorus 233 µg/L. Chlorophyll-a 11.2 µg/L. TSI 64.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 4.9ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 233µg/L | Poor GoodFairPoor |
| Chlorophyll-a (algae) | 11.2µg/L | Poor GoodFairPoor |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 64 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Eggleston Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
~21 ft est.
Surface area
158 acres
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Colorado has not published bathymetry for Eggleston Lake.
Lake Size & Watershed
Watershed (drainage) area
2 sq mi
HydroLAKES / HydroSHEDS
Shoreline
2.8 mi
HydroLAKES / HydroSHEDS
Elevation
10,167 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.
Stays via Stay22
Stays near Eggleston Lake
Compare lakeside cabins, hotels, and vacation rentals near Eggleston Lake in Delta County, Colorado — 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 readings cover nutrients and algae, not lodging. Cabins and rentals around Eggleston Lake are listed below.
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Fishing Eggleston Lake
Reservoir Info (USACE NID)
Eggleston Lake is a man-made reservoir impounded by the Eggleston (completed 1949), built primarily for irrigation on the Kiser Creek; earth-type dam, 40 ft tall and 330 ft long.
- Surface area
- 158 ac
- Normal storage
- 2,560 ac-ft
- Max storage
- 3,460 ac-ft
- Drainage area
- 2 sq mi
- Hazard class
- High
- Owner
- SURFACE CREEK DITCH & RESERVOIR CO. (WAIBEL, KEITH
All listed purposes: Irrigation;Recreation.
Source: USACE National Inventory of Dams, NID ID CO00601 · Operator website
EPA Impairment Status
Eggleston Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
Designated uses not supporting: Aquatic life.
Source: EPA ATTAINS assessment unit COGULG15_B · Official waterbody report
Nearby Lakes in Delta County
Frequently asked questions about Eggleston Lake
Where is Eggleston Lake?
- Eggleston Lake is a lake in Delta County, Colorado. Its water-quality measurements are published by Colorado WQCD and shown on this page as reported.
What is the water quality of Eggleston Lake?
- Eggleston Lake in Delta County, Colorado has water-quality measurements published by Colorado WQCD, shown here as reported. Water clarity: 4.9 ft visibility. Phosphorus: 233 µg/L. Chlorophyll-a (algae): 11.2 µg/L. Surface area: 158 acres.
Is Eggleston Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Eggleston Lake is listed impaired under Clean Water Act §303(d) (IR 5) for metals (other than mercury), pH / acidity. Check local advisories before you swim.
How deep is Eggleston Lake?
- No published bathymetric survey covers Eggleston Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 21 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate. The lake covers 158 acres.
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Where this data comes from
18 measurements from 2 monitoring stations, 2022. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Colorado Dept. of Public Health & Environment-WQCD
21COL001_WQX18 samples · 2022
Analytical methods
- Secchi disk depth measurement
- Phosphorus by Colorimetry
- 10200 H ~ Chlorophyll a-b-c Determination
- Nitrogen in Water by Pyrolysis Detection
Monitoring station identifiers (2)
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.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database
Lake size & watershed from HydroLAKES (HydroSHEDS)