13A_NCS000250_ LOS Status Summary

NCDOT NPDES Permit NCS000250
Level of Service (LOS) rating summary for Stormwater Control Devices
LOS Status Summary
Date: 9-26-19
Controls Inspecting
Controls to be Inspected
Number of SCMs
910
62
BB, BE, BFC, BS, C, CD, DDB, F, FB,
Control Types
FWI, GCS, HSB, IB, IC, IS, LS, PP, PSH,
BB BFC, BS, C, DDB, FB, GR, HSB,
IB, IS, PP, PSH, SW, WDB, WV
RG, S, SF, SS, SW, WDB
BB= Bioretention Basin, BE= Bio-Embankment, BFC= Biofiltration
Conveyance, BS= Bio-Swale, C= Cistern, CD= Check Dam, DDB= Dry
Detention Basin, F= Forebay, FB= Filtration Basin, FWI= Floating
Wetland Island, GCS= Grade Control Structure, GR= Green Roof, HSB=
Abbreviations Key:
Hazardous Spill Basin, 1B= Infiltration Basin, IC= Infiltration Chamber,
IS= Infiltration Swale, LS= Level Spreader, PP= Permeable Pavement,
PSH= Preformed Scour Hole, RG= Rain Garden, S= Swale, SF= Sand
Filter, SS= Swirl Separator, SW= Stormwater Wetland, WDB= Wet
Detention Basin, WV= Wet Vault
A: 192
Total Number of Each
B. 270
C: 266
All: No LOS rating yet
LOS Rating
D: 120
F: 62
Average LOS rating
C
N/A
Other SCMs in SCMS which are not listed in this Summary include non-structural controls
(e.g., Pet Waste Stations), and PSHs that have passed inspection with C or better LOS rating.
1 of 1