Elizabeth Lake
Los Angeles County, CaliforniaView mapDirections
SWRCB publishes the water-quality measurements for Elizabeth Lake. Here is what has been measured.
- Eutrophic
- Impaired · Mercury
- Public access
- Limited data
Elizabeth Lake in Los Angeles County, California has water-quality measurements published by SWRCB, shown here as reported. Phosphorus: 76 µg/L.
Elizabeth Lake is a productive, nutrient-rich eutrophic lake in Los Angeles County, California. Limited fish-species data available. Public access is available.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2020-09-21. 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. Elizabeth Lake is listed impaired under Clean Water Act §303(d) (IR 5) for mercury. Check local advisories before you swim.
Whether Elizabeth 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 Elizabeth Lake
These are the measurements SWRCB publishes for Elizabeth 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 76 µg/L. TSI 66.
| 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 | 76µg/L | Poor GoodFairPoor |
| 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. | 66 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Elizabeth Lake
Answers come straight from the public measurements and survey records on this page.
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Stays near Elizabeth Lake
Compare lakeside cabins, hotels, and vacation rentals near Elizabeth Lake in Los Angeles 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. The water-quality readings cover nutrients and algae, not lodging. Cabins and rentals around Elizabeth Lake are listed below.
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Fishing Elizabeth Lake
EPA Impairment Status
Elizabeth 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: Fish consumption, Other.
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit CAL4035100019990202155114 · Official waterbody report
Nearby Lakes in Los Angeles County
Frequently asked questions about Elizabeth Lake
Where is Elizabeth Lake?
- Elizabeth Lake is a lake in Los Angeles County, California. Its water-quality measurements are published by SWRCB and shown on this page as reported.
What is the water quality of Elizabeth Lake?
- Elizabeth Lake in Los Angeles County, California has water-quality measurements published by SWRCB, shown here as reported. Phosphorus: 76 µg/L.
Is Elizabeth Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Elizabeth Lake is listed impaired under Clean Water Act §303(d) (IR 5) for mercury. Check local advisories before you swim.
Can I fish at Elizabeth Lake?
- Public access to Elizabeth Lake is listed as yes on the lake record. Seasons, size and bag limits, and whether you need a license are set by California's fish and wildlife agency, so check its current regulations before you go.
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Where this data comes from
7 measurements from 1 monitoring station, 2020. Retrieved from the EPA Water Quality Portal on 2026-08-21.
Collected and reported by
- USGS California Water Science Center
USGS-CA7 samples · 2020
Analytical methods
- P, wu, WCA, persulfate CF color
- HACH, sensor model 2100 P, NTRU
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