Table 4.28
Treated effluent data for the semiconductor subcategory
Pollution,
mg/L
Raw wastes
flow weighted
worn concentration
Daily
maximum
30-day
average
Long-term
average
Daily
maximum
30-day
average
Long-term
average
Daily
maximum
30day
Long-term
average
Total toxic
organics
a
3.4
2.1
10A
0.82
2.1
10A
0.02
0.12
0.05 0.04
Arsenic
0.021
b
b
b
NA
NA
NA
NA
NA NA
Chromium
0.16
(o)
(o)
(o)
(o)
(o)
(o)
(o)
(o)
(o)
Copper
0.06
2.6
1.1
0.81
2.6
1.1
0.81
0.15
0.07 0.05
Lead
0.098
0.15
0.07
0.05
0.15
0.07
0.05
2.7
1.2
0.94
Nickel
1.0
2.7
1.2
0.98
2.7
1.2
0.98
b
b
(B)
Oil and
grease
4.4
34
16
12
34
10
12
52
23
18
TSS
48
52
23
18
52
23
18
44
20
15
Fluoride
57
44
20
15
44
20
15
NA
not available
a
Total toxic organics includes 1,2,4-trichlorobenzene, 1,1,1-trichloroethane, chloroform, 1,2-dichlorobenzene, 1,3-dichlorobenzene, 1,4-toluene, and
trichloroethylene
b
No change in performance from previous level or raw waste
4 Electrical and Electronic Wastes Treatment
159