401 cert projects

Certification Number	Description
06C-118	The project is a mixed use development that consists of 20.91 acres of multifamily apartment buildings for a maximum of 312 units, 12.89 acres of singlefamily homes for a maximum of 103 units and 14.36 acres of open space. The project is proposed to be developed in two phases. Phase I consists of the multifamily buildings and open space, and Phase II consists of the single family portion of the project.
08C-007	Emergency certification, issued to Caltrans for culvert repairs on SR-78 in the San Paqual Valley
07C-086	The project consists of the reconfiguration of an existing golf course driving range, the development of approximately nine acres into five estate lots (Unit 6), and the construction of emergency access over Bumann Road.
07C-038	Project is to construct approximately 1,490 linear feet of sewer line with associated manholes, and abandon approximately 5,765 linear feet of sewer line and associated manholes. The new line will cross Los Peñasquitos Creek at a point south of La Tortola Street, where approximately 67 linear feet of sewer line will be placed in a trench at the bottom of the creek bed. The project is to increase the capacity of the sewer trunk and reduce the number of pipelines within canyons and environmentally sensitive lands.
07C-020	This project is intended to complete the kelp reef habitat creation required to mitigate the environmental impacts on the San Onofre kelp bed resulting from the operation of the San Onofre Nuclear Generating Station Units 2 and 3 (SONGS) cooling system, per California Coastal Commission (CCC) Coastal Development Permit (CDP) No. 6-81-330A. Southern California Edison proposes to place approximately 100,800 tons of quarry rock in a single layer on the seafloor to create127.6 acres of kelp reef habitat. The mitigation reef will be managed and monitored for a period equal to the operating life of SONGS, per CDP No. 6-81-330A.
07C-019	The project consists of mowing of vegetation and potential removal of 260,000 cubic-yards of sediment over a 25 year period from the channelized, lower 7.2-miles of San Luis Rey River and floodplain within the Army Corps of Engineer’s constructed flood control channel (Channel). Potentially up to 93,000 cubic-yards could be removed during the initial phases and up to 52,000 cubic-yards approximately every 5 years. There is a possibility that no sediment may be removed as the river is incising due to lack of nearby sediment influx, but additional studies will be conducted to confirm that. The channel was authorized by Congress in 1970, with construction commencing in 1990, and completed in 2000. The channel was designed and constructed with a flood capacity of a 270 year-storm event flood level elevation, or 89,000 cubic feet per second. Currently the channel has a capacity of approximately a 45 year-storm event flood level elevation, or 32,000 cubic feet per second. After all three phases of the project are implemented, the channel will have a capacity of approximately 100 to 175 year-storm flood level elevation, or about 71,200 cubic feet per second. The project is phased to accommodate sensitive species requirements and is expected that full implementation to this flow conveyance will take approximately 8 years. The City of Oceanside and the Corps of Engineers propose to alter the floodplain of the San Luis Rey River to accommodate the San Luis Rey Flood Control Operations and Maintenance project. The focus of the Project is vegetation manipulation and potential removal of sediment to allow a flow of 71,200 cubic feet per second (cfs) to provide flood protection. The initial vegetation removal will be implemented in three phases over an estimated eight-year period. For each phase, the width of vegetation to be managed varies by reach (Attachment 7).
06C-112	1. Construction of an underground 19-million gallon reservoir. 2. Removal of two pipelines and ten vents. 3. Construction of two, 96-inch diameter pipelines within a tunnel. 4. Construction (widening) of an existing, permanent, stabilized Arizona-style crossing over the San Diego River. 5. Removal of an existing (degraded concrete) Arizona-style crossing over the San Diego River.
08C-012	This is a 401 certification, issued to Caltrans for culvert repairs on SR-76.