TITLE 40 - PROTECTION OF ENVIRONMENT

CHAPTER I - ENVIRONMENTAL PROTECTION AGENCY

SUBCHAPTER N - EFFLUENT GUIDELINES AND STANDARDS

PART 420 - IRON AND STEEL MANUFACTURING POINT SOURCE CATEGORY

subpart l - HOT COATING SUBCATEGORY

420.127 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional technology (BCT).

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 representing the degree of effluent reduction attainable by the application of the best conventional technology.

  (a) Galvanizing, terne coating, and other coatings(1) Strip, sheet, and miscellaneous products.

Subpart L ------------------------------------------------------------------------ BCT effluent limitations ------------------------ Average of Pollutant or pollutant property daily Maximum values for for any 1 30 day consecutive days ------------------------------------------------------------------------ Kg/kkg (pounds per 1,000 lb) of product ------------------------ TSS............................................ 0.175 0.0751 O&G........................................ 0.0751 0.0250 pH............................................. (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 6.0 to 9.0.

  (2) [Reserved] (b) Galvanizing and other coatings(1) Wire products and fasteners.

Subpart L ------------------------------------------------------------------------ BCT effluent limitations ------------------------- Average of daily Pollutant or pollutant property Maximum for values for any 1 day 30 consecutive days ------------------------------------------------------------------------ Kg/kkg (pounds per 1,000 lb) of product ------------------------- TSS........................................... 0.701 0.300 O&G....................................... 0.300 0.100 pH............................................ (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 6.0 to 9.0.

  (2) [Reserved] (c) Fume scrubbers.

Subpart LBAT Effluent Limitations ------------------------------------------------------------------------ BCT effluent limitations ------------------------ Average of Pollutant or pollutant property daily Maximum values for for any 1 30 day consecutive days ------------------------------------------------------------------------ Kilograms per day ------------------------ TSS............................................ 38.1 16.3 O&G........................................ 16.3 5.45 pH............................................. (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 6.0 to 9.0.

The above limitations shall be applicable to each fume scrubber associated with any of the coating operations specified above.