Appendix E — Construction Site Sediment Transport Potential Worksheet

Table E.1. Construction Site Sediment Transport Potential Worksheet
A. Existing Slope of Site (average, weighted by aerial extent)	Points
2% or less	0
>2–5%	5
>5–10%	15
>10–15%	30
>15%	50
B. Site Area to be Cleared and/or Graded
<5,000 square feet (sf)	0
5,000 sf–1 acre	30
>1 acre	50
C. Quantity of Cut and/or Fill on Site
<500 cubic yards	0
500–5,000 cubic yards	5
>5,000–10,000 cubic yards	10
>10,000–20,000 cubic yards	25
>20,000 cubic yards	40
D. Runoff Potential of Predominant Soils (Natural Resources Conservation Service)
Hydrologic soil group A	0
Hydrologic soil group B	10
Hydrologic soil group C	20
Hydrologic soil group D	40
E. Erosion Potential of Predominant Soils (Unified Classification System)
GW, GP, SW, SP soils	0
Dual classifications (GW-GM, GP-GM, GW-GC, GP-GC, SW-SM, SW-SC, SP-SM, SP‑SC)	10
GM, GC, SM, SC soils	20
ML, CL, MH, CH soils	40