2014-01-21_REVISION - M1999058 ‎(9)‎

• Permit No: M1999058
• IBM Index Class Name: Revision
• Doc Date: 1/21/2014
• Doc Name: Technical revision 03
• From: Lewicki and Assoc
• To: DRMS
• Type & Sequence: TR3
• Email Name: DMC
• Media Type: D
• Archive: No

Runoff Curve Number and Runoff
Project: Yule Quarry
Location: Drainage Area lA
1. Runoff Curve Number (CN)
Cover description CN Soil Group Area(Acre)
Forest 79 C &D 1.69
Mined Land, Disturbed (Poor) 87 C 1.21
CN (weighted): 81.5
Total Area: 2.9 Acre
2. Runoff
Return Period: 10 -Year
Rainfall, P: 1.60 in
Runoff, Q: 0.414 in
Runoff Volume: 0.100 Acre -Ft
Time of Concentration (Tc) 0.15 hrs, 9 min.
Peak Flow 1.48 cfs
The minimum volume plus 100 of the sump will be 0.11 acre -feet.
Sump lA will have a surface area of 1485.5 square feet.
Sump lA will have a minimum depth of 3.23 feet.
Location: Drainage Area 1B
1. Runoff Curve Number (CN)
Cover description CN Soil Group Area(Acre)
Forest 79 C &D 1.08
Mined Land, Disturbed (Poor) 87 C 0.4
CN (weighted): 80.1
Total Area: 1.48 Acre
2. Runoff
Return Period:
Rainfall, P:
Runoff, Q:
Runoff Volume:
Time of Concentration (Tc)
Peak Flow
10 -Year
1.60 in
0.339 in
0.042 Acre -Ft
0.056 hrs, 3.4 min.
0.73 cfs
The minimum volume plus 100 of the sump will be 0.0462 acre -feet.
Sump 1B will have a surface area of 401.3 square feet.
Sump 1 B will have minimum depth of 5.02 feet.
Yule Quarry January 2014 27