NCG110141_Email RE Outfall Updates_20240605

The characteristics of the industrial drainage outfalls and their associated drainage basins are identified in Table 1-2. Table
1-2 identifies the outfalls, outfall type, outfall coordinates, drainage areas, and percent impervious surface. Visual observations
of stormwater discharges will be performed for outfalls listed in Table 1-2 at designated points, as shown on the WWTP Site
Map. Visual observations will be conducted as described in Section A.1.5 and documented using SWPPP Form 6. A drainage
basin identification number is assigned to each outfall and shown on the WWTP Site Map. If future Facility development results
in the construction of additional outfalls, the outfall shall be added to Table 1-2 and the WWTP Site Map.
Table 1-2 Outfall and Drainage Basin Characteristics
OUTFALL OUTFALL LATITUDE* LONGITUDE* DRAINAGE DRAINAGE AREA IMPERVIOUS PERCENT OFF-SITE
I.D. TYPE BASIN (acres) AREA(acres) IMPERVIOUS RUN-ON
OF-01 21" RCP 35.765661 -79.784905 1 4.71 0.64 14% Yes
OF-02 12" RCP 35.765193 -79.785054 2 2.22 0.19 8.6% Yes
OF-03 24" RCP 35.764939 -79.785734 3 1.40 0.20 14% Yes
OF-04 18" RCP 35.764590 -79.786412 4 0.74 0.58 78% No
OF-05 24"CPP 35.764370 -79.786865 5 8.27 0 0 Yes
OF-06 24" RCP 35.764715 -79.786459 6 3.97 0.34 8.6% Yes
OF-07 12" RCP 35.764926 -79.786070 7 0.21 0 0 No
OF-08 15" RCP 35.765075 -79.785777 8 0.52 0.22 42% No
OF-09 18" RCP 35.765635 -79.785504 9 1.06 0.7 66% No
OF-10 15" RCO 35.766043 -79.785364 10 0.79 0.73 92% No
OF-11 24" RCP 35.766859 -79.785029 11 4.21 0.50 12% Yes
OF-12 18" RCP 35.767728 -79.784718 12 1.33 0.21 16% No
OF-13 15" RCP 35.768092 -79.785561 13 1 0.28 0 0% No
OF-14 12" RCP 35.768218 -79.786206 14 11.80 0.21 12% No
*Obtained from available maps&handheld GPS unit..
COA WWTP SWPPP
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