40 C.F.R. § 413.04

Pretreatment standards for integrated facilities shall be computed as required by § 403.6(e) of EPA's General Pretreatment Regulations. In cases where electroplating process wastewaters are combined with regulated wastewaters which have 30 days average standards, the corresponding 30 day average standard for the electroplating wastewaters must be used. The 30 day average shall be determined for pollutants in the relevant subcategory from the corresponding daily and 4 day average values listed in the table below.

If the maximum for any 1 day is And the 4 day average is Then the 30 day average is 0.6 0.4 0.3 1.2 .7 .5 1.9 1 .55 4.1 2.6 1.8 4.2 2.6 1.8 4.5 2.7 1.8 5.0 2.7 1.5 7.0 4 2.5 10.5 6.8 5 20.0 13.4 10 23 16 12 47 29 20 53 36 27 74 39 21 107 65 45 169 89 49 160 100 70 164 102 70 176 105 70 273 156 98 365 229 160 374 232 160 401 241 160 410 267 195 623 257 223 935 609 445