9900 19TH AVE SE 2018-01-02 MF Import

9/e6/97 8:0:4 am Barghausen Engineers page 2 HOME BASE -- EVERETT, F� FAMILY TREE DETENTION POND CALCULATIONS 5947-FTA ----------------------------------------- -- BASIN SUMMARY BASIN ID: 6MO-APT NAME: 6MO/24HR FAMILY TREE APTS SBUH METHODOLOGY TOTAL AREA.......: 6.90 Acres BASEFLOWS: 0.00 cfs RAINFALL TYPE....: TYPEIA PERV IMP PRECIPITATION....: 0.99 inches AREA..: 1.20 Acres 5.70 Acres TIME INTERVAL....: 10.00 min CM....: 86.00 98.00 TC.... : 15.07 min 15.07 min ABSTRACTION COEFF. 0.20 TcReach - Sheet L: 50.00 ns:0.1500 p2yr: 1.55 s:0.0100 TcReach - Sheet L: 100.00 ns:0.0110 p2yr: 1.55 s:0.0100 TcReach - Channel L: 750.00 kc:42.00 s:0.0200 impTcReach - Sheet L: 50.00 ns:0.1500 p2yr: 1.55 s:0.0100 impTcReach - Sheet L: 100.00 ns:0.0110 p2yr: 1.55 s:0.0100 impTcReach - Channel L: 750.00 kc:42.00 s:0.0200 PEAK RATE: 0.95 cfs VOL: 0.39 Ac-ft TIME: 480 min BASIN ID: DEV-APT NAME: 25YR/24HR FAMILY TREE APTS SBUH METHODOLOGY TOTAL AREA.......: 6.90 Acres BASEFLOWS: 0.00 cfs RAINFALL TYPE....: TYPElA PERV IMP PRECIPITATION....: 2.70 inches AREA..: 1.20 Acres 5.70 TIME INTERVAL....: 10.00 min CN.... : 86.00 98.00 TC.... : 15.07 min 15.07 ABSTRACTION COEFF: 0.20 TcReach - Sheet L: 50.00 ns:0.1500 p2yr: 1.55 s:0.0100 TcReach - Sheet L: 100.00 ns:0.0110 p2yr: 1.55 s:0.0100 TcReach - Channel L: 750.00 kc:42.00 s:0.0200 impTcReach - Sheet L: 50.00 ns:0.1500 p2yr: 1.55 s:0.0100 impTcReach - Sheet L: 100.00 ns:0.0110 p2yr: 1.55 s:0.0100 impTcReach - Channel L: 750.00 kc:42.00 s:0.0200 PEAK RATE: 3.20 cfs VOL: 1.31 Ac-ft TIME: 480 min BASIN ID: DEV100TH SBUH METHODOLOGY TOTAL AREA........ RAINFALL TYPE....: PRECIPITATION....: TIME INTERVAL....: NAME: 25YR/24HR 100TH STREET R/W 1.10 Acres BASEFLOWS: 0.00 cfs TYPElA PERV 2.70 inches AREA-,. 0.35 Acres 10.00 min CN.... : 86.00 TC.... . 10.00 min ABSTRACTION COEFF: 0.20 PEAK RATE: 0.50 cfs VOL: 0.20 Ac-ft TIME: 480 min IMP 0.75 Acres 98.00 10.00 min