The California Department of Fish and Wildlife (CDFW) has executed Lake and Streambed Alteration Agreement (EPIMS-RIV-24825-R6), pursuant to Fish and Game Code section 1602, to the project Applicant, Craig Cristina of Richland Developers, Inc. The Project is limited to fill of three unnamed ephemeral streams, referenced as Drainage A, Drainage B, and Drainage C, as part of roadway and infrastructure improvements for the Project. Drainage A flows from north to south and terminates at the southwestern portion of the property where it flows into an 18-inch culvert and exits the property, 0.19 acres of stream will be impacted. Drainage B flows from east to west where it terminates at the southwestern portion of the property into an 18-inch culvert and exits the property, 0.11 acres of stream will be impacted. Drainage C runs along the entire length of the eastern limits of the property (south of West Devonshire
Avenue), diverging slightly in the southeastern portion of the property and intercepts with Drainage B, which then flows to the west offsite, 0.29 acres of stream will be impacted. Flows from the three ephemeral streams will be transported along the southwest boundary of the project site and exit the property through an 18-inch culvert to the southwestern corner of Warren Road and Florida Avenue.
The Project will also implement a master-planned drainage detention facility and open space area (Ramona Creek/Devonshire Basin) on 22.8 acres running generally east/west through the Project site. This drainage facility will assist in conveying and maintaining the historical drainage patterns of stormwater flow west of Warren Road and south of West Florida Avenue. The Project activities will result in a loss of 0.59 acres of stream habitat.