23 - Laserfiche WebLink

Sustainable Sites Credit Cat 0 - / Name Credit 6.1: Stormwater Management, Rate and Quantity Credit 6.2: Stormwater Management, Treatment Credit 7.1: Heat Island Effect. Non- RJof Green Building Worksheet Project Name LEED v2.1 Rating System Analysis Intent / Requirements Pi..... describe how your proj.ct would be designed to qualify for this cr.dit. Pass y 7 N If existing imperviousness is less than or equal to 50%, implement a stormwater management plan that allows no net increase in the rate and quantity of stormwater run-off from existing to developed conditions; OR, if existing I imperviousness is greater than 50%, , i I I t implement a stormwater mana~ement plan I !! [ I that results in a 25% decrease In the rate I I I ! I --l-~~a::~t:;~e:~:::~;~:o:,~ove -t-il i 1-i -Bioswales have ::~~e~~o~~~ ~ndscape areas i 80% of the average annual post I ' of the site to remove 8096 of the average annual 'I development total suspended solids (TSS), ! j post dewlopment total suspended solids (TSS), and and 40% of the average annual post I I i 4096 of the average annual post development total I development total phosphorous (TP), by I phosphorous (TP), by Implementing Best implementing Best Management Practices! I I Management Practices (BMPs) outlin.d in EPA's ' (BMPs) outlined in EPA's Guidance i I Guidance Specifying Management Measures for Specifying Management Measures for I i I' Sources of Non~point Pollution in Coastal Waters Sources of Non-point Pollution in Coastal I (EPA 84Q-B-92..o02 1/93). Waters (EPA 840-B-92-002 1/93). i I Provide shade (within 5 years) and/or u~e---"J!-! H T I light-colored/high-albedo materials and/or I open grid pavement for at least 30% of non i : roof impervious surface on the site, I including parking lots, walk-ways, plazas, i etc.; OR, place a minimum of 50% of parking I space underground or covered by structuredl parking; OR use open-grid pavement system I (LESS than 50% imperviousness) for a minimum of 50% of the parking lot area. I N i I 1] At least 30% of new all non-roof impervious surfaces on the site will be constructed of high-albedo materials or will be shaded in 5 years. Page 4 of 15 Printed 10/18/06