[Code of Federal Regulations] [Title 40, Volume 27] [Revised as ofJuly 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR466.11] [Page 609] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 466--PORCELAIN ENAMELING POINT SOURCE CATEGORY--Table of Contents Subpart A--Steel Basis Material Subcategory Sec. 466.11 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available. Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations for metal preparation operations and for coating operations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT): Subpart A--BPT Effluent Limitations ---------------------------------------------------------------------------------------------------------------- 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........................................................ 16.82 3.41 6.81 1.38 Lead............................................................ 6.01 1.21 5.21 1.06 Nickel.......................................................... 56.46 11.43 40.05 8.11 Zinc............................................................ 53.26 10.78 22.43 4.54 Aluminum........................................................ 182.20 36.87 74.47 15.07 Iron............................................................ 112.12 22.69 56.06 11.34 Oil and grease.................................................. 800.84 162.10 480.51 97.23 TSS............................................................. 1642.00 332.20 800.90 162.00 pH.............................................................. (\1\) (\1\) (\1\) (\1\) -------------- English Units--pounds per 1 million ft\2\ of area processed or coated -------------- Chromium........................................................ 3.45 0.07 1.40 0.29 Lead............................................................ 1.23 0.25 1.07 0.22 Nickel.......................................................... 11.57 2.34 8.20 1.66 Zinc............................................................ 10.91 2.21 4.60 0.93 Aluminum........................................................ 37.32 7.55 15.26 3.09 Iron............................................................ 22.96 4.65 11.48 2.32 Oil and grease.................................................. 164.03 33.19 98.42 19.92 TSS............................................................. 337.00 68.10 164.00 33.20 pH.............................................................. (\1\) (\1\) (\1\) (\1\) ---------------------------------------------------------------------------------------------------------------- \1\ Within the range 7.5 to 10.0 at all times. [47 FR 53184, Nov. 24, 1982, as amended at 50 FR 36543, Sept. 6, 1985] [[Page 610]]