Laserfiche WebLink
A. DRAINAGE INFORMATION SUMMARY FORM <br /> Project: Lalone Addition <br /> PFN: <br /> Engineer: .Omega.Engineering, Inc. <br /> 2707 Wetmore Avenue Total site area: 0.14 acres <br /> Everett, WA 98201 Offsite area: 0.00 acres <br /> Attention: Joseph Smeby, P.E. Disturbed area: 0.03 acres <br /> New Buildings: 0 <br /> Applicant: Jeff Lalone <br /> 620 Waverly Ave <br /> Everett, WA 98203 <br /> Drainage Basin Information Basin A <br /> On-site Developed Area 0.03 acres <br /> Off-site Improved Area 0.00 acres <br /> Types of storage proposed on site Rock-filled trench <br /> Approximate Total storage volume 53 cf <br /> -Soil Types Type C Soils <br /> Basin Data <br /> Pre-developed run-off rates: 2-year 0.0025 cfs <br /> 10-year 0.0071 cfs <br /> 50-year 0.0138 cfs <br /> 100-year 0.0177 cfs <br /> Post-developed run-off rates: 2-year 0.0027 cfs <br /> 10-year 0.0067 cfs <br /> 50-year 0.0110 cfs <br /> 100-year 0.0130 cfs <br /> Lalone Addition 20-0902 <br /> October 2020 Page 4 <br />