can digest pollutants infiltrating the ground at its source and in low concentrations. <br />Gravel also reduces the "heat-island'. effect and albedo, compared to asphalt paving. <br />Please see illustration 03, which diagrams the benefits and differences from an asphalt <br />parking area. This solution is more successful than the more typical gravel-over-dirt <br />design because it is 2" of.3/4"-1 lh" crushed gravel over drainage fabric over 4" of AB- <br />I1. Therefore it does not generate dust. We understand that when gravel is used as a <br />drive surface, it can create dust and noise issues. That is why we have chosen to only' <br />use gravel in the actual parking stalls where these issues will not be a concern. The <br />photos shown demonstrate its success in a dry climate (where dust is a bigger <br />concern) and in wet climates. Many municipalities have started to mandate more <br />ecological alternates to asphalt, like this one. <br />We will agree to whatever performance agreements necessary,.for example a <br />group consensus on keeping a broom in the parking area to keep the gravel within <br />the gravel parking area. <br />• <br />is <br />McCamant & Durrett Architects Page 2 5/6/13 <br />1328 <br />Illustration 01: Gravel parking area in Nevada City, CA. <br />