NC0000272_Application_20240819

Estimated Contaminant Mass Loading from Groundwater Remediation (assuming modeled extraction rate)
Former Canton Mill, Canton, NC
Estimated Recovery System Mass Loading
Parameters
Est. Avg Load
(I b/d)
Est. Max Load
(I b/d)
Est. Avg Conc
(mg/L)
Est. Max Conc
(mg/L)
Organics (VOCs, SVOCs)
1.454
1.705
1.698
1.991
Metals (dissolved)
2134.332
2895.167
2492.283
3380.719
Metals (total)
2198.619
3618.083
2567.352
4224.875
Select General Chemistry (Anions, Color, WW parameters)
Sulfate
976.230
1008.850
1139.954
1178.045
Chloride
87.702
91.877
102.410
107.286
Oil and Grease
0.847
0.847
0.989
0.989
BOD
28.049
35.911
32.754
41.933
TDS
843.689
1055.246
985.185
1232.222
COD
371.528
393.743
433.837
459.778
Color, True (color units)
1841.436
1884.097
2150.266
2200.081
TSS
0.295
0.295
0.344
0.344
Alkalinity (as CaCO3)
3849.000
3960.995
4494.520
4625.297
Dioxins
0.000000265
0.000000265
0.000000309
0.000000309
PFAS
0.00007091
0.00007101
0.00008281
0.0000829
Assumptions
Underlying parameter data for trench/RW system loading calcs are from 2023 and 2024 groudnwater sampling events.
All non -detects were assumed to be zero, not included in calculations.
Recovery system is hybrid trench/RWs completed in cobble with total extraction rate of 102,683 gpd (0.1 MGD).