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An Engineering Seplmesy <br /> BMP ES.20 Excavated Basement Soil <br /> Excavated basement soil should be located a reasonable distance behind the curb, such <br /> as in the backyard or side yard area. This practice will increase the distance eroded soil <br /> must travel to reach the storm sewer system. Soil piles should be covered until the soil is <br /> either used or removed. Piles should be situated so that sediment does not erode into <br /> the street, adjoining yards and does not enter surface water. <br /> The proposed building is adequately set back from the cubs and property line that BMP <br /> ES.20 is not a concern. <br /> BMP ES.30 Backfillinq <br /> Basement walls should be backfilled as soon as possible and the lot rough graded. This <br /> practice will eliminate large soil mounds which are highly erodible and prepares the lot <br /> for temporary cover, which will further reduce erosion potential. <br /> This project does not propose the construction of a basement. However, BMP ES.30 will <br /> be implemented for the backfilling around the building's footings. <br /> BMP ES.40 Removal of Excess Soil <br /> Excess soil should be removed from the site as soon as possible after backfilling. This <br /> practice will eliminate any sediment loss from surplus fill. <br /> BMP ES.40 has been added as a requirement of the permit/construction documents. <br /> BMP ES.50 Management of Soil Banks <br /> If a lot has a soil bank higher than the curb, the bank should be located several feet <br /> behind the curb and a shallow trench should be excavated between the bank and the <br /> curb. This practice will help prevent any eroded sediment from entering the street. <br /> BMP ES.50 will be the responsibility of the project CESCL and has been added as a <br /> requirement of the permit/construction documents. <br /> BMP ES.60 Construction Road Access <br /> Gravel or crushed rock shall be applied to the driveway area and vehicle traffic restricted <br /> to this one route. Driveway paving can be installed directly over the gravel. This measure <br /> will help prevent soil from adhering to tires and stop soil from washing into the street. <br /> This construction access requires periodic inspection and maintenance including <br /> washing, top-dressing with additional stone, reworking and compaction. <br /> BMP ES.60 has been implemented in the permit/construction documents. <br /> BMP ES.70 Soil Stabilization <br /> Soil stabilization measures protect soil from the erosive forces of raindrop impact and <br /> flowing water. Acceptable measures include establishing vegetation by sodding or <br /> seeding, mulching with two tons of straw per acre or approved equal, plastic or other <br /> impervious covering staked to the ground or anchored with rocks or sandbags, and the <br /> early application of gravel base on areas to be paved. <br /> Starbucks Page 4 <br /> Broadway and 10th Store <br /> Drainage Report <br /> May 2014 <br />