7.10.2 Project Design Features PDF-HY-1 Low Impact Development (LID) strategies have been incorporated into the Project design, including: Minimize impervious areas. Avoid compaction in planned landscape spaces. Till and amend soil for improved infiltration capacity. Drain rooftops, roads, or sidewalks into adjacent landscape areas. Drain impervious surfaces through pervious areas. Replace pervious drainage ditches with open, vegetated swales. Collect runoff. Landscape with native or drought-tolerant species. Manage stormwater within proposed biofiltration BMPs. PDF-HY-2 The Project design includes 10 proposed biofiltration BMPs, which would discharge runoff into proposed vegetated channels that ultimately would convey stormwater off site. All of the proposed biofiltration BMPs would be designed for water quality and hydromodification management plan requirements, per County of San Diego Watershed Protection, Storm Water Management, and Discharge Control Ordinance (WPO) specifications. Eight of the 10 BMPs would be designed to provide 100-year detention in order to route post-Project peak discharges back to pre-Project conditions for the Project site as a whole. PDF-HY-3 The Project includes an area that, due to site constraints, cannot be conveyed into one of the 10 biofiltration BMPs; therefore, this area will include modular wetlands systems to treat stormwater. Anticipated frontage and off-site street improvements will be addressed using green PDF-HY-4 street elements outlined in the City of Escondido BMP Design Manual. Green Street components will be addressed during final engineering.
7.10.2 Project Design Features PDF-HY-1 Low Impact Development (LID) strategies have been incorporated into the Project design, including: Minimize impervious areas. Avoid compaction in planned landscape spaces. Till and amend soil for improved infiltration capacity. Drain rooftops, roads, or sidewalks into adjacent landscape areas. Drain impervious surfaces through pervious areas. Replace pervious drainage ditches with open, vegetated swales. Collect runoff. Landscape with native or drought-tolerant species. Manage stormwater within proposed biofiltration BMPs. PDF-HY-2 The Project design includes 10 proposed biofiltration BMPs, which would discharge runoff into proposed vegetated channels that ultimately would convey stormwater off site. All of the proposed biofiltration BMPs would be designed for water quality and hydromodification management plan requirements, per County of San Diego Watershed Protection, Storm Water Management, and Discharge Control Ordinance (WPO) specifications. Eight of the 10 BMPs would be designed to provide 100-year detention in order to route post-Project peak discharges back to pre-Project conditions for the Project site as a whole. PDF-HY-3 The Project includes an area that, due to site constraints, cannot be conveyed into one of the 10 biofiltration BMPs; therefore, this area will include modular wetlands systems to treat stormwater. PDF-HY-4 Anticipated frontage and off-site street improvements will be addressed using green street elements outlined in the City of Escondido BMP Design Manual. Green Street components will be addressed during final engineering.