Skip to main content
LakeQuality

Sherman Lake

Sacramento County, CaliforniaView mapDirections

SWRCB publishes the water-quality measurements for Sherman Lake. Here is what has been measured.

Chlorophyll-a
3.2 µg/L
Typical for California
Measured by SWRCB
  • Public access
  • Limited data

Sherman Lake in Sacramento County, California has water-quality measurements published by SWRCB, shown here as reported. Chlorophyll-a (algae): 3.2 µg/L.

Loading map…

Sherman Lake is a lake in Sacramento County, California. Limited fish-species data available. Public access is available.

Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2021-09-07. Methodology: how these readings are compared.

Swimming conditions

No reading

Limited data

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Whether Sherman 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.

Get alerts for Sherman Lake →

Water quality measurements for Sherman Lake

These are the measurements SWRCB publishes for Sherman 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. Chlorophyll-a 3.2 µg/L. TSI 42.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)No reading

How deep a black-and-white disk stays visible from the surface. Higher is clearer.

Total phosphorusNo reading

The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.

Chlorophyll-a (algae)3.2µg/LMeasured, 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.42Mesotrophic
OligotrophicMesotrophicEutrophicHypereutrophic

Moderate nutrients, good water quality

Ask about Sherman Lake

Answers come straight from the public measurements and survey records on this page.

Stays via Stay22

Stays near Sherman Lake

Compare lakeside cabins, hotels, and vacation rentals near Sherman Lake in Sacramento 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 Sherman Lake

Prices for Oct 9–11, 4 adults. Change dates on the map below.

Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.

Follow Sherman Lake’s readings

Email me when new measurements post for this lake. Updates stay free.


Or email

Fishing Sherman Lake

Nearby Lakes in Sacramento County

Frequently asked questions about Sherman Lake

Where is Sherman Lake?

Sherman Lake is a lake in Sacramento County, California. Its water-quality measurements are published by SWRCB and shown on this page as reported.

What is the water quality of Sherman Lake?

Sherman Lake in Sacramento County, California has water-quality measurements published by SWRCB, shown here as reported. Chlorophyll-a (algae): 3.2 µg/L.

Measurements on this page ↑

Is Sherman Lake safe to swim in?

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Swimming on this page ↑

Can I fish at Sherman Lake?

Public access to Sherman 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.

Where this data comes from

12 measurements from 3 monitoring stations, 2020–2021. Retrieved from the EPA Water Quality Portal on 2026-08-21.

Collected and reported by

  • USGS California Water Science CenterUSGS-CA12 samples · 2020–2021

Analytical methods

  • Plant pigments, sonication & 445
Monitoring station identifiers (3)

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.