APPENDIX B:  TABLE OF RUNOFF COEFFICIENTS
 
Runoff Coefficients
Land Usage
Usage Details
Runoff Coefficients, General Slope Less than 3%
Runoff Coefficients, General Slope 3% or Greater
Commercial
.80
.95
Industrial
Light
.65
.80
Parks and cemeteries
.10
.25
Playgrounds
.20
.35
Railroad yard areas
.20
.40
Residential
Suburban
.35
.40
Residential
Single-family
.40
.40
Residential
Multi-units
.50
.70
Residential
Apartments
.60
.80
Unimproved areas
.15
.15
 
(Ord. 27, Table 1, passed 4-16-1997; Am. Ord. 85, passed 10-17-2000)