Tahoekeyslagoons.Traverse.I Lake
El Dorado County, California267 acresView mapDirections
SWRCB publishes the water-quality measurements for Tahoekeyslagoons.Traverse.I Lake. Here is what has been measured.
- Impaired · pH / acidity
- Limited data
Tahoekeyslagoons.Traverse.I Lake in El Dorado County, California has water-quality measurements published by SWRCB, shown here as reported. Phosphorus: 21 µg/L. Surface area: 267 acres.
Tahoekeyslagoons.Traverse.I Lake is a 267-acre lake in El Dorado County, California.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2020-09-08. Methodology: how these readings are compared.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Tahoekeyslagoons.Traverse.I Lake is listed impaired under Clean Water Act §303(d) (IR 5) for pH / acidity. Check local advisories before you swim.
Whether Tahoekeyslagoons.Traverse.I Lake is safe to swim in today is a call for the California State Water Resources Control Board and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Tahoekeyslagoons.Traverse.I Lake
These are the measurements SWRCB publishes for Tahoekeyslagoons.Traverse.I Lake, 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 21 µg/L. TSI 48.
| 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 | 21µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| 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. | 48 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Tahoekeyslagoons.Traverse.I Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
267 acres
No bathymetric survey has been published for Tahoekeyslagoons.Traverse.I Lake, so its depth is not documented here.
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Fishing Tahoekeyslagoons.Traverse.I Lake
Reservoir Info (USACE NID)
Tahoekeyslagoons.Traverse.I Lake is a man-made reservoir impounded by the Tallac (completed 1970), built primarily for other on the Unnamed Tributary; gravity-type dam, 16 ft tall and 85 ft long.
- Surface area
- 267 ac
- Max storage
- 1,399 ac-ft
- Drainage area
- 3.4 sq mi
- Hazard class
- Low
- Owner
- Tahoe Keys Property Owners Association
All listed purposes: Other;Recreation.
Source: USACE National Inventory of Dams, NID ID CA10376 · Operator website · Matched by proximity (0.17 km)
EPA Impairment Status
Tahoekeyslagoons.Traverse.I 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 CAL6341004220020726131244 · Official waterbody report
Nearby Lakes in El Dorado County
Frequently asked questions about Tahoekeyslagoons.Traverse.I Lake
Where is Tahoekeyslagoons.Traverse.I Lake?
- Tahoekeyslagoons.Traverse.I Lake is a lake in El Dorado County, California. Its water-quality measurements are published by SWRCB and shown on this page as reported.
What is the water quality of Tahoekeyslagoons.Traverse.I Lake?
- Tahoekeyslagoons.Traverse.I Lake in El Dorado County, California has water-quality measurements published by SWRCB, shown here as reported. Phosphorus: 21 µg/L. Surface area: 267 acres.
Is Tahoekeyslagoons.Traverse.I Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Tahoekeyslagoons.Traverse.I Lake is listed impaired under Clean Water Act §303(d) (IR 5) for pH / acidity. Check local advisories before you swim.
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Where this data comes from
2 measurements from 1 monitoring station, 2020. Retrieved from the EPA Water Quality Portal on 2026-08-21.
Collected and reported by
- California State Water Resources Control Board
CEDEN2 samples · 2020
Analytical methods
- EPA 365.3
- EPA 365.1M
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.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database