Crystal Ranch Homeowners Association Open (HOA) Space Bank Slump Repair Project (Notification of Lake or Streambed Alteration, No. EPIMS-CCA-48673-R3).
Summary
SCH Number
2024100802
Public Agency
California Department of Fish and Wildlife, Bay Delta Region 3
(CDFW)
Document Title
Crystal Ranch Homeowners Association Open (HOA) Space Bank Slump Repair Project (Notification of Lake or Streambed Alteration, No. EPIMS-CCA-48673-R3).
Document Type
NOE - Notice of Exemption
Received
Posted
10/18/2024
Document Description
The California Department of Fish and Wildlife has executed Lake and Streambed Alteration Agreement EPIMS Notification No. EPIMS-CCA-48673-R3, pursuant to Section 1602 of the Fish and Game Code to Crystal Ranch Homeowners Association (Permittee) as represented by Martin Steinpress.
The project is limited to repair of two slump landslide areas with minor recontouring to a maximum 1.8:1 (horizontal:vertical) graded slope, and placement of geotextile fabric and rock slope protection (RSP), installation of subdrain systems. The two slump landslide areas are along previously graded slopes at 1040 Laurel Tree Drive (Project 1) and 5385 Aspenwood Court (Project 2) in the open space common areas of the Crystyl Ranch HOA.
During construction, loose disturbed landslide debris will be removed, and excavation of a toe keyway will be performed. A toe keyway will be constructed with a minimum width of 5 feet and embedment of 5 feet deep into competent soil or bedrock. Following keyway excavation, the excavation will be lined with non-woven filter fabric,
and a subdrain installed. Willows will be planted, and the keyway will be backfilled with angular rock slope protection (RSP). The final slope will be backfilled with onsite soil and track walked in-place. Equipment will include hand tools and small equipment, such as bobcat, excavator and electric wheelbarrows. RSP will be hand placed. No tree removal or dewatering will occur.
Contact Information
Name
Sabrina Dunn
Agency Name
CA Department of Fish and Wildlife
Job Title
Environmental Scientist
Contact Types
Lead/Public Agency
Phone
Location
Counties
Contra Costa
Regions
San Francisco Bay Area
Other Location Info
The project is located at an unnamed tributary to Galindo Creek, in the County of Contra Costa, State of California. Project 1 is located at Latitude [37.934038], Longitude [-121.97787]; 1040 Laurel Tree Drive, Concord CA, 94521; Assessor’s Parcel Number [APN] 120-070-034-8. Project 2 is located at Latitude [37.92790], Longitude [-121.97031]; 5385 Aspenwood Court, Concord CA, 94521; Assessor’s Parcel Number [APN] 121-070-028-0.
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
Class (4), Minor Alterations to Land; California Code of Regulations, title 14, section (15304)
Reasons for Exemption
The project involves minor land, water, and vegetation alteration that is less than 0.5 acres, and does not involve removal of healthy, mature, scenic trees.
County Clerk
Contra Costa
Attachments
Notice of Exemption
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