5-814-8
Pretreatment standards for electroplating point source category,
Table 4-8.
existing sources, all subcategories,
discharges of 10,000 gpd or more
Mass Based Standard
Optional Standarda
/L)
Basic Standard
- operation)
O Dayb
O
Daily
4 Day
Dai
4
Dai
4 Day
Maximum
Average
Average
Parameter
Maximum
Average Average
Average Average
Maximum
74
1.9
1*O
0.55
39
21
0.55
1.9
1.0
CN,
0.3
23
Pb
'16
12
0.6
0.4
0.3
0.4
0.6
20
1.2
o* 7
0.5
47
0.7
1.2
0.5
29
Cd
70
4.5
2.7
1.8
176
105
70
4.1
Ni
160
2.6
1.8
100
98
7.0
273
4.0
2.5
156
70
4.2
2.6
102
164
1.8
Agd
20
47
29
1.2
0.7
0.5
195
Total Metalse
410
10.5
5
6.8
7.5-10.0
TTof
2.13
2.13
20.0
13.4
10
TSS
applicable only with consent of the controlling authority, in the absence of strong chelating agents, after
reduction of hexavalent chrome and after neutralization using calcium oxide or hydroxide.
to discharges combined with regulated discharges that have 30-day average standards.
C
CN, T = Total Cyanide
`Applicable to precious metals subcategory only.
Metals = Sum of the concentration or mass of Cu, Ni,
and
f
TTO = Total Toxic
standards reported are proposed.
40 CFR Part 413
Source:
Previous Page
