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 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.