Tahoekeyslagoons.Traverse.I Lake
Tahoekeyslagoons.Traverse.I Lake in El Dorado County, California is not rated for water quality — its monitoring record does not meet the evidence bar. Phosphorus: 21 µg/L. Surface area: 267 acres.
- Area
- 267 acres
Why Tahoekeyslagoons.Traverse.I Lake has no grade
We grade a lake only when its monitoring record clears the evidence bar: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Tahoekeyslagoons.Traverse.I Lake, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). Sampling here has recorded phosphorus, but not water clarity and algae (chlorophyll-a).
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by your state environmental agency and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
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. Grade methodology: LakeGrade methodology.
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Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Tahoekeyslagoons.Traverse.I Lake
These readings exist but do not meet the evidence bar for an A–F grade — see why.
No clarity data. Phosphorus level: 21 µg/L. Trophic State Index: 48.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 21 µg/L | Not graded |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 48 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Tahoekeyslagoons.Traverse.I Lake
Compare lakeside cabins, hotels, and vacation rentals near Tahoekeyslagoons.Traverse.I Lake in El Dorado County, California — 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.
Top-rated places to stay near Tahoekeyslagoons.Traverse.I Lake
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 267 acres |
No bathymetric survey has been published for Tahoekeyslagoons.Traverse.I Lake, so its depth is not documented here.
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
Source: EPA ATTAINS assessment unit CAL6341004220020726131244 · Official waterbody report · Matched by proximity (0.66 km)
Graded lakes near Tahoekeyslagoons.Traverse.I Lake
Tahoekeyslagoons.Traverse.I Lake has no grade, but these lakes within a short drive do.
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. LakeQuality has not rated this lake (UNRATED) — there is not enough recent sampling to assign a letter.
What is the water quality grade for Tahoekeyslagoons.Traverse.I Lake?
- Tahoekeyslagoons.Traverse.I Lake in El Dorado County, California is not rated for water quality — its monitoring record does not meet the evidence bar. Phosphorus: 21 µg/L. Surface area: 267 acres.
Is Tahoekeyslagoons.Traverse.I Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Tahoekeyslagoons.Traverse.I Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
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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)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database