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DEVELOPMENT PLAN 1 2 system is schematic and may change based on final engineering and building placement. c+nrr Wntnr Quality Improvement of water quality is a critical issue for all development. Local, State and Federal laws include requirements for the treatment of storm water runoff to reduce pollutants entering the environment. As an urbanized area, opportunities for large-scale water quality improvements (such as storm water basins) within the Specific Plan area are limited. Best Management Practices (BMPs) are structural or engineered devices and systems used to treat storm water runoff before it is discharged into a drainage system (storm drain or channel). BMPs appropriate for an urbanized setting may include the following menu of items as defined in the Technical Guidance Document prepared by the County of Orange: Underground Infiltration: Underground infiltration systems consist of a network of perforated pipes or vaults and are constructed in naturally pervious soils, as confirmed by infiltration testing, with a flat bottom. Alternatively, vertical dry wells can be utilized. Permeable Pavement: Permeable pavements contain small voids that allow water to pass through to a gravel base. They come in a variety of forms; they may be a modular paving system or poured in place pavement (porous concrete, permeable asphalt). processes. Vegetated swales, filter strips, and planter boxes fall within this category. A preliminary Water Quality Management Plan (WQMP) has been prepared for the project. Due to the urbanized setting, BMPs consisting primarily of underground infiltration systems will be located to serve each of the Specific Plan's drainage areas. Figure 2- 14, Drainage Plan, shows the drainage areas and associated water quality features. A final WQMP will be submitted as part of the final construction documents and will describe the final selection of BMPs for the proposed development. 2.7.5 Dry Utilities Public gas and electric facilities are owned and operated by Southern California Gas and Southern California Electric, respectively. Utilities in relocated Main Place Drive between Bedford Road and Main Street will be relocated in the new private roadway with appropriate easements. Service lines for new buildings will be extended from the existing and new public lines. Additionally, new developments will connect to the existing fiber optic cable network to ensure the Specific Plan Area develops as a full "Smart Village." 2.7.6 Fiber Optics Connections to fiber optic networks do not currently exist within the Specific Plan area. As the infrastructure needed to deliver these services is made accessible in the future, individual projects will have Biofiltration/Bioretention: Bioretention storm water treatment the opportunity to connect and make these services available. facilities are landscaped shallow depressions that capture and filter storm water runoff. These facilities function as a soil and plant -based filtration device that removes pollutants through a variety of physical, biological, and chemical treatment MAINPLACE SPECIFIC PLAN 1 2-24