(a) Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart that introduces process wastewater pollutants into a publicly owned treatment works must comply with 40 CFR part 403, and must achieve the following pretreatment standards: ------------------------------------------------------------------------
PSES
-------------------------
Pollutant or pollutant property Maximum for
Maximum for monthly
any 1 day average------------------------------------------------------------------------
Milligrams per liter (mg/
l)
-------------------------Total Chromium................................ 19 12pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range 6.0 to 10.0.
(b) Any existing source subject to this subpart which processes less than 3,600 splits/day shall comply with Sec. 425.95(a), except that the total chromium limitations contained in Sec. 425.95(a) do not apply. [47 FR 52870, Nov. 23, 1982; 48 FR 30117, June 30, 1983, as amended at 53 FR 9183, Mar. 21, 1988]