[Code of Federal Regulations] [Title 40, Volume 27] [Revised as ofJuly 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR471.83] [Page 778-780] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 471--NONFERROUS METALS FORMING AND METAL POWDERS POINT SOURCE CATEGORY--Table of Contents Subpart H--Zinc Forming Subcategory Sec. 471.83 New source performance standards (NSPS). Any new source subject to this subpart must achieve the following new source performance standards (NSPS): (a) Rolling spent neat oils--Subpart H--NSPS. There shall be no discharge of process wastewater pollutants. (b) Rolling spent emulsions. Subpart H--NSPS ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (pounds per million off-pounds) of zinc rolled with emulsions --------------- Chromium.................................... 0.0005 0.0002 Copper...................................... 0.002 0.0009 Cyanide..................................... 0.0003 0.0001 Zinc........................................ 0.002 0.0006 Oil and grease.............................. 0.014 0.014 TSS......................................... 0.021 0.017 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.5 to 10.0 at all times. (c) Rolling contact cooling water. Subpart H--NSPS ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (pounds per million off-pounds) of zinc rolled with contact cooling water --------------- Chromium.................................... 0.020 0.009 Copper...................................... 0.069 0.037 Cyanide..................................... 0.011 0.004 Zinc........................................ 0.055 0.023 Oil and grease.............................. 0.536 0.536 TSS......................................... 0.804 0.643 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.5 to 10.0 at all times. (d) Drawing spent emulsions. Subpart H--NSPS ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (pounds per million off-pounds) of zinc drawn with emulsions --------------- Chromium.................................... 0.002 0.0009 Copper...................................... 0.008 0.004 Cyanide..................................... 0.001 0.0005 Zinc........................................ 0.006 0.003 Oil and grease.............................. 0.058 0.058 TSS......................................... 0.087 0.070 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.5 to 10.0 at all times (e) Direct chill casting contact cooling water. Subpart H--NSPS ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any one day average ------------------------------------------------------------------------ mg/off-kg (pounds per million off-pounds) of zinc cast by the direct chill method --------------- Chromium.................................... 0.019 0.008 Copper...................................... 0.065 0.031 Cyanide..................................... 0.010 0.004 Zinc........................................ 0.052 0.021 Oil and grease.............................. 0.505 0.505 TSS......................................... 0.758 0.606 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.5 to 10.0 at all times. (f) Stationary casting contact cooling water--Subpart H--NSPS. There shall be no discharge of process wastewater pollutants. (g) Heat treatment contact cooling water. [[Page 779]] Subpart H--NSPS ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (pounds per million off-pounds) of zinc heat treated --------------- Chromium.................................... 0.029 0.012 Copper...................................... 0.098 0.047 Cyanide..................................... 0.016 0.006 Zinc........................................ 0.078 0.032 Oil and grease.............................. 0.763 0.763 TSS......................................... 1.15 0.916 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.5 to 10.0 at all times. (h) Surface treatment spent baths. Subpart H--NSPS ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (pounds per million off-pounds) of zinc surface treated --------------- Chromium.................................... 0.033 0.014 Copper...................................... 0.114 0.054 Cyanide..................................... 0.018 0.007 Zinc........................................ 0.091 0.038 Oil and grease.............................. 0.887 0.887 TSS......................................... 1.33 1.07 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.5 to 10.0 at all times. (i) Surface treatment rinse. Subpart H--NSPS ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (pounds per million off-pounds) of zinc surface treated --------------- Chromium.................................... 0.133 0.054 Copper...................................... 0.459 0.219 Cyanide..................................... 0.072 0.029 Zinc........................................ 0.365 0.151 Oil and grease.............................. 3.58 3.58 TSS......................................... 5.37 4.30 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.5 to 10.0 at all times. (j) Alkaline cleaning spent baths. Subpart H--NSPS ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (pounds per million off-pounds) of zinc alkaline cleaned --------------- Chromium.................................... 0.002 0.0006 Copper...................................... 0.005 0.002 Cyanide..................................... 0.0007 0.0003 Zinc........................................ 0.004 0.002 Oil and grease.............................. 0.036 0.036 TSS......................................... 0.054 0.043 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.5 to 10.0 at all times. (k) Alkaline cleaning rinse. Subpart H--NSPS ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (pounds per million off-pounds) of zinc alkaline cleaned --------------- Chromium.................................... 0.626 0.259 Copper...................................... 2.17 1.03 Cyanide..................................... 0.338 0.135 Zinc........................................ 1.73 0.710 Oil and grease.............................. 16.9 16.9 TSS......................................... 25.4 20.3 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.5 to 10.0 at all times. (l) Sawing or grinding spent emulsions. Subpart H--NSPS ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (pounds per million off-pounds) of zinc sawed or ground with emulsions --------------- Chromium.................................... 0.009 0.004 Copper...................................... 0.031 0.015 Cyanide..................................... 0.005 0.002 Zinc........................................ 0.025 0.010 Oil and grease.............................. 0.235 0.235 TSS......................................... 0.357 0.286 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\Within the range of 7.5 to 10.0 at all times. (m) Electrocoating rinse. [[Page 780]] Subpart H--NSPS ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (pounds per million off-pounds) of zinc electrocoated --------------- Chromium.................................... 0.085 0.035 Copper...................................... 0.293 0.140 Cyanide..................................... 0.046 0.019 Zinc........................................ 0.234 0.096 Oil and grease.............................. 2.29 2.29 TSS......................................... 3.44 2.75 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.5 to 10.0 at all times (n) Degreasing spent solvents--Subpart H--NSPS. There shall be no discharge of process wastewater pollutants. [50 FR 34270, Aug. 23, 1985; 51 FR 2888, Jan. 22, 1986]