[Code of Federal Regulations] [Title 40, Volume 29] [Revised as of July 1, 2007] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR437.42] [Page 370-372] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 437_THE CENTRALIZED WASTE TREATMENT POINT SOURCE CATEGORY --Table of Contents Subpart D_Multiple Wastestreams Sec. 437.42 Effluent limitations attainable by the application of the best practicable control technology currently available (BPT). (a) Except as provided in 40 CFR 125.30 through 125.32 or Sec. 437.40(b), any existing facility subject to this subpart which combines treated or untreated wastes from subparts A, B, or C of this part may be subject to Multiple Wastestream Subcategory effluent limitations representing the application of BPT set forth in paragraphs (b), (c), (d), or (e) of this section if the discharger agrees to the following conditions in its NPDES permit: (1) The discharger will meet the applicable Multiple Wastestream Subcategory limitations set forth in (b), (c), (d) or (e); (2) The discharger will notify its NPDES permit writer at the time of renewal or modification of its permit, of its desire to be subject to the Multiple Waste Subcategory by submitting to the NPDES permit writer an initial certification statement as described in Sec. 437.41(a); [[Page 371]] (3) The discharger will submit to its NPDES permitting authority a periodic certification statement as described in Sec. 437.41(b) once a year; and (4) The discharger will maintain at the office of the facility and make available for inspection the on-site compliance paperwork as described in Sec. 437.41(c). (b) Combined waste receipts from subparts A, B, and C of this part. (1) As provided in Sec. 437.42(a), any existing point source subject to this paragraph must achieve the following effluent limitations representing the application of BPT: BPT Limitations ------------------------------------------------------------------------ Maximum Regulated parameter Maximum monthly avg. daily \1\ \1\ ------------------------------------------------------------------------ Conventional Parameters ------------------------------------------------------------------------ BOD5........................................ 163 53.0 O&G......................................... 127 38.0 pH.......................................... (\2\) (\2\) TSS......................................... 74.1 30.6 ------------------------------------------------------------------------ Metal Parameters ------------------------------------------------------------------------ Antimony.................................... 0.249 0.206 Arsenic..................................... 0.162 0.104 Cadmium..................................... 0.0172 0.0102 Chromium.................................... 0.746 0.323 Cobalt...................................... 0.192 0.124 Copper...................................... 0.500 0.242 Lead........................................ 0.350 0.160 Mercury..................................... 0.00234 0.000739 Nickel...................................... 3.95 1.45 Silver...................................... 0.120 0.0351 Tin......................................... 0.409 0.120 Titanium.................................... 0.0947 0.0618 Vanadium.................................... 0.218 0.0662 Zinc........................................ 0.497 0.420 ------------------------------------------------------------------------ Organic Parameters ------------------------------------------------------------------------ Acetone..................................... 30.2 7.97 Acetophenone................................ 0.114 0.0562 Bis(2-ethylhexyl) phthalate................. 0.215 0.101 2-Butanone.................................. 4.81 1.85 Butylbenzyl phthalate....................... 0.188 0.0887 Carbazole................................... 0.598 0.276 o-Cresol.................................... 1.92 0.561 p-Cresol.................................... 0.698 0.205 n-Decane.................................... 0.948 0.437 Fluoranthene................................ 0.0537 0.0268 n-Octadecane................................ 0.589 0.302 Phenol...................................... 3.65 1.08 Pyridine.................................... 0.370 0.182 2,4,6-Trichlorophenol....................... 0.155 0.106 ------------------------------------------------------------------------ \1\ mg/L (ppm). \2\ OSC Within the range 6 to 9. (2) The following in-plant limitations apply to metal-bearing wastewater containing cyanide: In-Plant Limitations ------------------------------------------------------------------------ Maximum Regulated parameter Maximum monthly daily \1\ avg. \1\ ------------------------------------------------------------------------ Cyanide....................................... 500 178 ------------------------------------------------------------------------ \1\ mg/L (ppm). (c) Combined waste receipts from subparts A and B of this part. (1) As provided in Sec. 437.42(a), any existing point source subject to this paragraph must achieve the following effluent limitations representing the application of BPT: BPT Limitations ------------------------------------------------------------------------ Maximum Regulated parameter Maximum monthly avg. daily \1\ \1\ ------------------------------------------------------------------------ Conventional Parameters ------------------------------------------------------------------------ O&G......................................... 127 38.0 pH.......................................... (\2\) (\2\) TSS......................................... 74.1 30.6 ------------------------------------------------------------------------ Metal Parameters ------------------------------------------------------------------------ Antimony.................................... 0.249 0.206 Arsenic..................................... 0.162 0.104 Cadmium..................................... 0.0172 0.0102 Chromium.................................... 0.746 0.323 Cobalt...................................... 0.192 0.124 Copper...................................... 0.500 0.242 Lead........................................ 0.350 0.160 Mercury..................................... 0.00234 0.000739 Nickel...................................... 3.95 1.45 Silver...................................... 0.120 0.0351 Tin......................................... 0.409 0.120 Titanium.................................... 0.0947 0.0618 Vanadium.................................... 0.218 0.0662 Zinc........................................ 2.87 0.641 ------------------------------------------------------------------------ Organic Parameters ------------------------------------------------------------------------ Bis(2-ethylhexyl) phthalate................. 0.215 0.101 Butylbenzyl phthalate....................... 0.188 0.0887 Carbazole................................... 0.598 0.276 n-Decane.................................... 0.948 0.437 Fluoranthene................................ 0.0537 0.0268 n-Octadecane................................ 0.589 0.302 ------------------------------------------------------------------------ \1\ mg/L (ppm). \2\ Within the range 6 to 9. (2) The following in-plant limitations apply to metal-bearing wastewater containing cyanide: In-Plant Limitations ------------------------------------------------------------------------ Maximum Regulated parameter Maximum monthly daily \1\ avg. \1\ ------------------------------------------------------------------------ Cyanide....................................... 500 178 ------------------------------------------------------------------------ \1\ mg/L (ppm). (d) Combined waste receipts from subparts A and C of this part. (1) As provided in Sec. 437.42(a), any existing point [[Page 372]] source subject to this paragraph must achieve the following effluent limitations representing the application of BPT: BPT Limitations ------------------------------------------------------------------------ Maximum Regulated parameter Maximum monthly avg. daily \1\ \1\ ------------------------------------------------------------------------ Conventional Parameters ------------------------------------------------------------------------ BOD 5....................................... 163 53.0 O&G......................................... 205 50.2 pH.......................................... (\2\) (\2\) TSS......................................... 60.0 31.0 ------------------------------------------------------------------------ Metal Parameters ------------------------------------------------------------------------ Antimony.................................... 0.249 0.206 Arsenic..................................... 0.162 0.104 Cadmium..................................... 0.474 0.0962 Chromium.................................... 15.5 3.07 Cobalt...................................... 0.192 0.124 Copper...................................... 0.865 0.757 Lead........................................ 1.32 0.283 Mercury..................................... 0.00234 0.000739 Nickel...................................... 3.95 1.45 Silver...................................... 0.120 0.0351 Tin......................................... 0.409 0.120 Titanium.................................... 0.0947 0.0618 Vanadium.................................... 0.218 0.0662 Zinc........................................ 0.497 0.420 ------------------------------------------------------------------------ Organic Parameters ------------------------------------------------------------------------ Acetone..................................... 30.2 7.97 Acetophenone................................ 0.114 0.0562 2-Butanone.................................. 4.81 1.85 o-Cresol.................................... 1.92 0.561 p-Cresol.................................... 0.698 0.205 Phenol...................................... 3.65 1.08 Pyridine.................................... 0.370 0.182 2,4,6-Trichlorophenol....................... 0.155 0.106 ------------------------------------------------------------------------ \1\ mg/L (ppm). \2\ Within the range 6 to 9. (2) The following in-plant limitations apply to metal-bearing wastewater containing cyanide: In-Plant Limitations ------------------------------------------------------------------------ Maximum Regulated parameter Maximum monthly daily \1\ avg. \1\ ------------------------------------------------------------------------ Cyanide....................................... 500 178 ------------------------------------------------------------------------ \1\ mg/L )ppm). (e) Combined waste receipts from subparts B and C of this part. As provided in Sec. 437.42(a), any existing point source subject to this paragraph must achieve the following effluent limitations representing the application of BPT: BPT Limitations ------------------------------------------------------------------------ Maximum Regulated parameter Maximum monthly avg. daily \1\ \1\ ------------------------------------------------------------------------ Conventional Parameters ------------------------------------------------------------------------ BOD5........................................ 163 53.0 O&G......................................... 127 38.0 pH.......................................... (\2\) (\2\) TSS......................................... 74.1 30.6 ------------------------------------------------------------------------ Metal Parameters ------------------------------------------------------------------------ Arsenic..................................... 2.95 1.33 Cadmium..................................... 0.0172 0.0102 Chromium.................................... 0.746 0.323 Cobalt...................................... 56.4 18.8 Copper...................................... 0.500 0.242 Lead........................................ 0.350 0.160 Mercury..................................... 0.0172 0.00647 Tin......................................... 0.335 0.165 Zinc........................................ 0.497 0.420 ------------------------------------------------------------------------ Organic Parameters ------------------------------------------------------------------------ Acetone..................................... 30.2 7.97 Acetophenone................................ 0.114 0.0562 Bis(2-ethylhexyl) phthalate................. 0.215 0.101 2-Butanone.................................. 4.81 1.85 Butylbenzyl phthalate....................... 0.188 0.0887 Carbazole................................... 0.598 0.276 o-Cresol.................................... 1.92 0.561 p-Cresol.................................... 0.698 0.205 n-Decane.................................... 0.948 0.437 Fluoranthene................................ 0.0537 0.0268 n-Octadecane................................ 0.589 0.302 Phenol...................................... 3.65 1.08 Pyridine.................................... 0.370 0.182 2,4,6-Trichlorophenol....................... 0.155 0.106 ------------------------------------------------------------------------ \1\ mg/L (ppm). \2\ Within the range 6 to 9. [65 FR 81300, Dec. 22, 2000, as amended at 68 FR 71023, 71024, Dec. 22, 2003]