Seeding. If the project results in exposed upland and/or wetland transitional areas resulting from sediment removal and or exotic removal these areas will be seeded to establish a native grass understory. Generally, steeper slopes are hydroseeded and gentler slopes are hand seeded and covered with landscape fabric to discourage erosion and encourage a native herbaceous understory. Seed mix and application rates are indicated in Table 3 below. Scientific Name Common Name Application Rate (lbs/acre) Leymus triticoides beardless ryegrass 10 Hordeum brachyantherum meadow barley 20 Festuca californica California fescue 10 Festuca rubra red fescue 10 Lupinus bicolor bicolor lupine 5 Vulpia microstachys ▇▇▇▇▇▇▇’▇ fescue 5 Sediment Prevention best management practices (BMPs) include the installation of erosion control fabrics, rice straw, straw wattles, brush mats, and other materials as necessary to prevent sediment delivery to the stream. Permanent erosion control materials will be biodegradable and selected for slope, substrate, and water velocity. All bare soils will be seeded and protected with the appropriate erosion control material. Appropriate hold-downs, including landscape staples and pins will be used to secure materials to the ground. Where appropriate and approved by the Water Agency, an energy dissipater at a storm drain outfall or other erosion control remediation BMP will be installed to demonstrate a storm water management feature.
Appears in 2 contracts
Sources: Settlement Agreement and Stipulation for Administrative Civil Liability Order, Settlement Agreement and Stipulation for Administrative Civil Liability Order