Agenda - 04-29-2003-7e - Laserfiche WebLink

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EN~IRQNMENT ISSUES The environmental principles and goals embodied in the con- ceptplan For sustainable site design in terms of conserving land and water resources is as follows: MINIMUM DISTURBANCE Precinct Plan ` ~ ~~ ,, ~ ~ r ~ Y ti ~1. _' Nae"""~.y. } ~ . ~~~ . ~ ~~ ~ ~ ~ a~ _ ~~ ~ ~- ~ ~i:.; F ! t ~~# ~~ d11 1 Ar„ r., ~ u t y 1 Y ~f j' ~ , ~._r.. ~~,,. ~. , ~~ ~ ~~rs~ : ~ w _ - ~ ~ ~ t` ;; View of the linear park within the North Precinct ~ . The north entrance to the Horace Williams property would be from the proposed extension of Weaver Dairy Road, which would bring southbound automobile traffic from I-40 into the research campus planned in the north precinct. The proposed plan organizes six large floor-plate research buildings and four parking structures around a contained lin- ear park space. The parking garages are masked with retail frontages on the ground level. The precinct includes 500,000 gross square Feet of research office space, 1,800 car spaces, and 12,000 square feet of retail. • Disturb as little of the proposed site as necessary. • Work with the natural contours; avoid excessive earthmoving. • Limit removal of existing natural vegetation. • Avoid placing structures in floodplains and sensitive areas. • Keep building and parking envelope as compact as possible. • Maintain riparian buffer along streams. MAINTAIN NATURAL HYDROLOGIC CYCLE • Maintain no net increase in Volume of Runoff. • Avoid unnecessary impervious surfaces -make pervious if possible. • Maintain recharge of rainfall to groundwater. • Provide retention beds to mitigate stormwater • Maintain infiltration for existing vegetation. • Use Best Management Practices such as Porous Pavement. • Collect rainwater for plant and garden watering. BENEFITS OF INFILTRATION • Maintain Hydrologic Balance • Remove Pollutants • Prevent increased downstream flows • Recharge Groundwater • Maintain Streamflows WATER SUPPLY AND WASTEWATER • Use On-Site Water and Wastewater if feasible. • Use low-Flow fixtures. • Use alternatives to chemical disinfection (i.e., UV disinfection). • Reuse treated wastewater. • Use Low maintenance, low energy wastewater treatment systems. • Apply treated effluent to land surface to recharge groundwater. MAINTAIN WATER QUALITY • Use native species and limit future chemical site maintenance. • Limit artificial areas such as maintained lawns. • Avoid discharges of wastewater to streams and lakes. • Avoid earthwork which creates erosion and sediment problems. • Maintain native vegetation. • Use low maintenance, water quality Best Management Practices (BMP).