DOE/ORO/2327 Oak Ridge Reservation Annual Site Environmental ...

Oak Ridge Reservation
Dechlorination treatment in the upper reach of EFPC provided excellent control of chlorinated
discharges, and toxicity testing results of three outfalls in the upper reach have shown no toxicity.
Table 4.10 lists the NPDES compliance monitoring requirements and the 2009 compliance record.
Table 4.10. NPDES compliance monitoring requirements and record for the Y-12 Complex,
January through December 2009
Discharge
Point
Outfall 501 (Central
Pollution Control)
Outfall 502 (West
End Treatment
Facility)
Outfall 503 (West
End Treatment
Facility)
Effluent
Parameter
4-46 The Y-12 National Security Complex
Daily
Avg
(lb/d)
Daily
Max
(lb/d)
Daily
Avg
(mg/L)
Daily
Max
(mg/L)
Percentage
of
Compliance
pH, standard units a 9.0 b 0
Total suspended
solids
31.0 40.0 b 0
Total toxic organic 2.13 b 0
Hexane extractables 10 15 b 0
Cadmium 0.16 0.4 0.075 0.15 b 0
Chromium 1.0 1.7 0.5 1.0 b 0
Copper 1.2 2.0 0.5 1.0 b 0
Lead 0.26 0.4 0.1 0.2 b 0
Nickel 1.4 2.4 2.38 3.98 b 0
Nitrate/Nitrite 100 b 0
Silver 0.14 0.26 0.05 0.05 b 0
Zinc 0.9 1.6 1.48 2.0 b 0
Cyanide 0.4 0.72 0.65 1.20 b 0
PCB 0.001 b 0
pH, standard units a 9.0 100 4
Total suspended
solids
19 36.0 31.0 40.0 100 4
Total toxic organic 2.13 100 1
Hexane extractables 10 15 100 4
Cadmium 0.16 0.4 0.075 0.15 100 4
Chromium 1.0 1.7 0.5 1.0 100 4
Copper 1.2 2.0 0.5 1.0 100 4
Lead 0.26 0.4 0.10 0.20 100 4
Nickel 1.4 2.4 2.38 3.98 100 4
Nitrate/Nitrite 100 100 4
Silver 0.14 0.26 0.05 0.05 100 4
Zinc 0.9 1.6 1.48 2.0 100 4
Cyanide 0.4 0.72 0.65 1.20 100 4
PCB 0.001 100 1
pH, standard units a 9.0 b 0
Total suspended
solids
125 417 30.0 40.0 b 0
Hexane extractables 63 83.4 10 15 b 0
Iron 20.8 20.8 5.0 5.0 b 0
Cadmium 0.16 0.075 0.15 b 0
Chromium 0.8 0.8 0.20 0.20 b 0
Copper 4.17 4.17 0.20 0.40 b 0
Lead 0.10 0.20 b 0
Zinc 4.17 4.17 1.0 1.0 b 0
No. of
Samples