Laserfiche WebLink
• Drainage Report <br /> Rapid Creek Rip-Rap Quarry <br /> March 20, 1995 <br /> Page 2 <br /> SUMMARY <br /> Q10 cfs Q100 cfs <br /> Historic 8.5 17.1 <br /> Exterior 1 2 <br /> CONCLUSIONS AND RECOMMENDATIONS <br /> The overburden from the first phase will be moved to the lower part of the <br /> site as a berm. <br /> A perimeter ditch will be used both as a safety ditch and will direct <br /> stormwater to the bermed area which will also be a storm retention basin. <br /> After mining is completed, the top soil will be replaced and seeded <br /> with natural vegetation over the mined area. <br /> • The area will serve as a retention basin and also being vegetated, <br /> will reduce the runoff factor prior to the mining operation. <br /> Respectfully submitted, <br /> Ile- <br /> Wayne <br /> H. Lizer, P.E. , P.L.S. <br /> WHL/sl <br /> Attachments <br /> 611 <br /> tt <br /> IV, <br /> • <br />