Where is Lafayette Reservoir?

Lafayette Reservoir is a lake in Contra Costa County, California. Its water-quality measurements are published by SWRCB and shown on this page as reported.

Are there boat ramps on Lafayette Reservoir?

Lafayette Reservoir has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Lafayette Reservoir. Public access is listed as yes.

Can I fish at Lafayette Reservoir?

Lafayette Reservoir has 1 documented boat landing in the USGS National Boat Ramps inventory. 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.

Lafayette Reservoir

Contra Costa County, California105 acresView map Directions

No nutrient or algae sampling on record from SWRCB for this lake.

Area

105 acres

Surface area

Shoreline

2.7 mi

Measured length

Impaired · Mercury
Public access
Limited data

See the measurements Directions Where to stay

Lafayette Reservoir in Contra Costa County, California has water-quality measurements published by SWRCB, shown here as reported. Surface area: 105 acres.

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Lafayette Reservoir is a 105-acre lake in Contra Costa County, California. Limited fish-species data available. Public access is available with 1 public boat landing.

Source: EPA Water Quality Portal sampling records, your state environmental agency. Methodology: how these readings are compared.

What Lafayette Reservoir is good for

From access and monitoring records, not editorial picks.

Boat launch1 documented ramp

Swimming conditions

No reading

Limited data

Nutrient and algae readings are not a swimming clearance. Lafayette Reservoir is listed impaired under Clean Water Act §303(d) (IR 5) for mercury, pCBs. Check local advisories before you swim.

Whether Lafayette Reservoir 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.

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Water quality measurements for Lafayette Reservoir

These are the measurements SWRCB publishes for Lafayette Reservoir, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

No clarity data.

Ask about Lafayette Reservoir

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

Lake Details

Surface area

105 acres

Shoreline

2.7 mi

Public access

Yes

Listed by SWRCB

No bathymetric survey has been published for Lafayette Reservoir, so its depth is not documented here.

Recreation & Access

Boat Landings

Yes

Public Access

Lafayette ReservoirPublic

Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps

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Stays near Lafayette Reservoir

Compare lakeside cabins, hotels, and vacation rentals near Lafayette Reservoir in Contra Costa 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 Lafayette Reservoir

Prices for Oct 16–18, 4 adults. Change dates on the map below.

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Fishing Lafayette Reservoir

→ Lafayette Reservoir fishing regulations (limits, seasons, special rules)

EPA Impairment Status

Lafayette Reservoir is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).

Causes of impairment

MercuryPCBs

Designated uses not supporting: Fish consumption, Other.

A Total Maximum Daily Load (TMDL) plan has been approved.

Source: EPA ATTAINS assessment unit CAL2073201020050519182313 · Official waterbody report

Nearby Lakes in Contra Costa County

Briones Reservoir3.7 miView →Lake Anza12.3 ft clear6 miView →San Pablo Reservoir6.4 miView →Mallard Reservoir10.8 miView →Contra Loma Reservoir4.1 ft clear—View →Antioch Municipal Reservoir—View →

Frequently asked questions about Lafayette Reservoir

Where is Lafayette Reservoir?: Lafayette Reservoir is a lake in Contra Costa County, California. Its water-quality measurements are published by SWRCB and shown on this page as reported.
What is the water quality of Lafayette Reservoir?: Lafayette Reservoir in Contra Costa County, California has water-quality measurements published by SWRCB, shown here as reported. Surface area: 105 acres.
Is Lafayette Reservoir safe to swim in?: Nutrient and algae readings are not a swimming clearance. Lafayette Reservoir is listed impaired under Clean Water Act §303(d) (IR 5) for mercury, pCBs. Check local advisories before you swim.
Are there boat ramps on Lafayette Reservoir?: Lafayette Reservoir has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Lafayette Reservoir. Public access is listed as yes.
Can I fish at Lafayette Reservoir?: Lafayette Reservoir has 1 documented boat landing in the USGS National Boat Ramps inventory. 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.