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WASTE DISCHARGE REQUIREMENTS - GENERAL. ORDER -5- U.S. ARMY CORPS OF ENGINEERS AND THE PORT OF STOCKTON STOCKTON DEEP WATER SHIP CHANNEL MAINTENANCE DREDGING ACTIVITIES MILE 4.4 TO MILE 41.0, CONTRA COSTA, SACRAMENTO&SAN JOAQUIN COUNTIES 3. The Discharge Applicability Table to follow, establishes the maximum sediment concentrations that can be allowed under this General Order for Maintenance Dredging and Disposal Projects on the San Joaquin River. The first column are the constituents of concern and the second column establishes the maximum dredgedsediment concentrations that can be allowed for discharging to the DMD sites only. The third column concentrations are the maximum sediment concentrations that can be allowed and have both dredged sediment discharged to the DMD and allow decant waters from the sedimentation basins to be discharged back to the river. Maximum Concentration Maximum Concentration for Discharging Dredge for Discharging Dredge Materials to DMD Site and Constituent Materials to DMD Site Return Waters to San Joaquin River Totals Solubles' To s Solubles Arsenic 33 mg/kg 0.005 mg/l 9.5 mg/kg 0.005 mg/1 Copper 90 mg/kg 1.0 mglg 90 mg/kg 1.0 mg/l Lead 50 mg/kg 0.05 mg/1 15 mg/kg 0.05 mg/1 Mercury 0.35 mg/kg 0.002 mg/l 0.35 mg/kg 0.002 mg/l Thallium 5.0 mg/kg 0.002 mgl 2.5 mg/kg 0.002 mg/1 Zinc 300 mg/kg 5.0 mg/l 300 mg/kg 5.0 mg/1 Antimony 0.006 mg/1 0.006 mg/1 Barium 1.0 mg/l 1.0 mg/1 ' Soluble concentrations to be determined after performing a Title 22 Waste Extraction Test method using de-ionized water 4. If the Executive Officer finds that the proposed discharge qualifies for coverage under this Order, the discharger shall be issued a Notification of Applicability statement. The dischargers are not covered by this Order until they have been issued a Notification of Applicability by the Executive Officer.