(a) Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for existing sources.
Subpart C--PSES------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
Milligrams per liter (mg/
l)
-------------------------Chromium...................................... 0.42 0.17Lead.......................................... 0.15 0.13Nickel........................................ 1.41 1.00Zinc.......................................... 1.33 0.56------------------------------------------------------------------------
(b) In cases where POTW find it necessary to impose mass pretreatment standards the following equivalent mass standards are provided:
Subpart C--PSES----------------------------------------------------------------------------------------------------------------
Maximum for any 1 day Maximum for monthly
------------------------ average
Pollutant or pollutant property -----------------------
Metal Coating Metal Coating
preparation operation preparation operation----------------------------------------------------------------------------------------------------------------
Metric units--mg/m\2\ of area processed or
coated
-----------------------------------------------Chromium........................................................ 16.34 0.53 6.62 0.22Lead............................................................ 5.84 0.19 5.06 0.16Nickel.......................................................... 54.85 1.78 38.9 1.26Zinc............................................................ 51.74 1.68 21.79 1.71
-----------------------------------------------
English units--pounds per 1 million ft\2\ of
area processed or coated
-----------------------------------------------Chromium........................................................ 3.35 0.11 1.36 0.05Lead............................................................ 1.20 0.04 1.04 0.03Nickel.......................................................... 11.24 0.37 7.97 0.25Zinc............................................................ 10.6 0.35 4.46 0.35---------------------------------------------------------------------------------------------------------------- [47 FR 53184, Nov. 24, 1982, as amended at 50 FR 36544, Sept. 6, 1985]