[Code of Federal Regulations]
[Title 40, Volume 27]
[Revised as ofJuly 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR464.35]

[Page 586-589]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 464--METAL MOLDING AND CASTING POINT SOURCE CATEGORY--Table of Contents
 
                 Subpart C--Ferrous Casting Subcategory
 
Sec. 464.35  Pretreatment standards for existing sources.

    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.
    (a) Casting Cleaning Operations. (1) Applicable to plants that are 
casting primarily ductile iron, to plants that are casting primarily 
malleable iron where greater than 3,557 tons of metal are poured per 
year, and to plants that are casting primarily gray iron where greater 
than 1,784 tons of metal are poured per year.

                                  PSES
------------------------------------------------------------------------
                                                             Maximum for
       Pollutant or pollutant property         Maximum for     monthly
                                                any 1 day      average
------------------------------------------------------------------------
                                               kg/1,000 kkg (pounds per
                                               million pounds) of metal
                                                        poured
                                             ---------------
Copper (T)..................................        0.0129        0.0071
Lead (T)....................................        0.0237        0.0116
Zinc (T)....................................        0.0437        0.0165
------------------------------------------------------------------------

    (2) Applicable to plants that are casting primarily steel, to plants 
that are casting primarily malleable iron where equal to or less than 
3,557 tons of metal are poured per year, and to plants that are casting 
primarily gray iron where equal to or less than 1,784 tons of metal are 
poured per year.

                                  PSES
------------------------------------------------------------------------
                                                             Maximum for
       Pollutant or pollutant property         Maximum for     monthly
                                                any 1 day      average
------------------------------------------------------------------------
                                               kg/1,000 kkg (pounds per
                                               million pounds) of metal
                                                        poured
                                             ---------------
Copper (T)..................................        0.0129        0.0071
Lead (T)....................................        0.0353        0.0174
Zinc (T)....................................        0.0656        0.025
------------------------------------------------------------------------

    (b) Casting Quench Operations. (1) Applicable to plants that are 
casting primarily ductile iron, to plants that are casting primarily 
malleable iron where greater than 3,557 tons of metal are poured per 
year, and to plants that are casting primarily gray iron where greater 
than 1,784 tons of metal are poured per year.

                                  PSES
------------------------------------------------------------------------
                                                             Maximum for
       Pollutant or pollutant property         Maximum for     monthly
                                                any 1 day      average
------------------------------------------------------------------------
                                               kg/1,000 kkg (pounds per
                                               million pounds) of metal
                                                        poured
                                             ---------------
Copper (T)..................................        0.0138       0.0076
Lead (T)....................................        0.0252       0.0124
Zinc (T)....................................        0.0466       0.0176
TTO.........................................        0.0257       0.00838
Oil and grease (for alternate monitoring)...        1.43         0.476
------------------------------------------------------------------------

    (2) Applicable to plants that are casting primarily steel, to plants 
that are casting primarily malleable iron where equal to or less than 
3,557 tons of metal are poured per year, and to plants that

[[Page 587]]

are casting primarily gray iron where equal to or less than 1,784 tons 
of metal are poured per year.

                                  PSES
------------------------------------------------------------------------
                                                             Maximum for
       Pollutant or pollutant property         Maximum for     monthly
                                                any 1 day      average
------------------------------------------------------------------------
                                               kg/1,000 kkg (pounds per
                                               million pounds) of metal
                                                        poured
                                             ---------------
Copper (T)..................................        0.0138       0.0076
Lead (T)....................................        0.0376       0.0185
Zinc (T)....................................        0.0699       0.0266
TTO.........................................        0.0257       0.00838
Oil and grease (for alternate monitoring)...        1.43         0.476
------------------------------------------------------------------------

    (c) Dust Collection Scrubber Operations. (1) Applicable to plants 
that are casting primarily ductile iron, to plants that are casting 
primarily malleable iron where greater than 3,557 tons of metal are 
poured per year, and to plants that are casting primarily gray iron 
where greater than 1,784 tons of metal are poured per year.

                                  PSES
------------------------------------------------------------------------
                                                            Maximum for
      Pollutant or pollutant property        Maximum for      monthly
                                              any 1 day       average
------------------------------------------------------------------------
                                               kg/62.3 million Sm \3\
                                             (pounds per billion SCF) of
                                                    air scrubbed
                                           ----------------

Copper (T)................................         0.218          0.12
Lead (T)..................................         0.398          0.195
Zinc (T)..................................         0.736          0.278
Total Phenols.............................         0.646          0.225
TTO.......................................         2.04           0.664
Oil and Grease (for alternate monitoring).        22.5            7.51
------------------------------------------------------------------------

    (2) Applicable to plants that are casting primarily steel, to plants 
that are casting primarily malleable iron where equal to or less than 
3,557 tons of metal are poured per year, and to plants that are casting 
primarily gray iron where equal to or less than 1,784 tons of metal are 
poured per year.

                                  PSES
------------------------------------------------------------------------
                                                            Maximum for
      Pollutant or pollutant property        Maximum for      monthly
                                              any 1 day       average
------------------------------------------------------------------------
                                               kg/62.3 million Sm \3\
                                             (pounds per billion SCF) of
                                                    air scrubbed
                                           ----------------
Copper (T)................................         0.218          0.12
Lead (T)..................................         0.593          0.293
Zinc (T)..................................         1.1            0.421
Total Phenols.............................         0.656          0.225
TTO.......................................         2.04           0.664
Oil and Grease (for alternate monitoring).        22.5            7.51
------------------------------------------------------------------------

    (d) Grinding Scrubber Operations. No discharge of process wastewater 
pollutants to a POTW.
    (e) Investment Casting. (1) Applicable to plants that are casting 
primarily ductile iron, to plants that are casting primarily malleable 
iron where greater than 3,557 tons of metal are poured per year, and to 
plants that are casting primarily gray iron where greater than 1,784 
tons of metal are poured per year.

                                  PSES
------------------------------------------------------------------------
                                                            Maximum for
      Pollutant or pollutant property        Maximum for      monthly
                                              any 1 day       average
------------------------------------------------------------------------
                                              kg/1,000 kkg (pounds per
                                              million pounds) of metal
                                                       poured
                                           ----------------
Copper (T)................................         3.19           1.76
Lead (T)..................................         5.84           2.86
Zinc (T)..................................        10.8            4.07
TTO.......................................        13.2            4.3
Oil and Grease (for alternate monitoring).       330            110
------------------------------------------------------------------------

    (2) Applicable to plants that are casting primarily steel, to plants 
that are casting primarily malleable iron where equal to or less than 
3,557 tons of metal are poured per year, and to plants that are casting 
primarily gray iron where equal to or less than 1,784 tons of metal are 
poured per year.

                                  PSES
------------------------------------------------------------------------
                                                            Maximum for
      Pollutant or pollutant property        Maximum for      monthly
                                              any 1 day       average
------------------------------------------------------------------------
                                              kg/1,000 kkg (pounds per
                                              million pounds) of metal
                                                       poured
                                           ----------------
Copper (T)................................         3.19           1.76
Lead (T)..................................         8.7            4.3
Zinc (T)..................................        16.2            6.17
TTO.......................................        13.2            4.3
Oil and Grease (for alternate monitoring).       330            110
------------------------------------------------------------------------


[[Page 588]]

    (f) Melting Furnace Scrubber Operations. (1) Applicable to plants 
that are casting primarily ductile iron, to plants that are casting 
primarily malleable iron where greater than 3,557 tons of metal are 
poured per year, and to plants that are casting primarily gray iron 
where greater than 1,784 tons of metal are poured per year.

                                  PSES
------------------------------------------------------------------------
                                                            Maximum for
      Pollutant or pollutant property        Maximum for      monthly
                                              any 1 day       average
------------------------------------------------------------------------
                                             kg/62.3 million Sm3 (pounds
                                               per billion SCF) of air
                                                      scrubbed
                                           ----------------
Copper (T)................................         1.02           0.561
Lead (T)..................................         1.86           0.911
Zinc (T)..................................         3.44           1.30
Total phenols.............................         3.01           1.05
TTO.......................................         8.34           2.73
Oil and grease (for alternate monitoring).       105             35
------------------------------------------------------------------------

    (2) Applicable to plants that are casting primarily steel, to plants 
that are casting primarily malleable iron where equal to or less than 
3,557 tons of metal are poured per year, and to plants that are casting 
primarily gray iron where equal to or less than 1,784 tons of metal are 
poured per year.

                                  PSES
------------------------------------------------------------------------
                                                            Maximum for
      Pollutant or pollutant property        Maximum for      monthly
                                              any 1 day       average
------------------------------------------------------------------------
                                            kg/62.3 million Sm 3 (pounds
                                               per billion SCF) of air
                                                      scrubbed
                                           ----------------
Copper (T)................................         1.02           0.561
Lead (T)..................................         2.77           1.37
Zinc (T)..................................         5.15           1.96
Total phenols.............................         3.01           1.05
TTO.......................................         8.34           2.73
Oil and grease (for alternate monitoring).       105             35
------------------------------------------------------------------------

    (g) Mold Cooling Operations. (1) Applicable to plants that are 
casting primarily ductile iron, to plants that are casting primarily 
malleable iron where greater than 3,557 tons of metal are poured per 
year, and to plants that are casting primarily gray iron where greater 
than 1,784 tons of metal are poured per year.

                                  PSES
------------------------------------------------------------------------
                                                             Maximum for
       Pollutant or pollutant property         Maximum for     monthly
                                                any 1 day      average
------------------------------------------------------------------------
                                               kg/1,000 kkg (pounds per
                                               million pounds) of metal
                                                        poured
                                             ---------------
Copper (T)..................................        0.0428        0.0236
Lead (T)....................................        0.0783        0.0384
Zinc (T)....................................        0.145         0.0546
TTO.........................................        0.0797        0.026
Oil and grease (for alternate monitoring)...        4.43          1.48
------------------------------------------------------------------------

    (2) Applicable to plants that are casting primarily steel, to plants 
that are casting primarily malleable iron where greater than 3,557 tons 
of metal are poured per year, and to plants that are casting primarily 
gray iron where equal to or less than 1,784 tons of metal are poured per 
year.

                                  PSES
------------------------------------------------------------------------
                                                             Maximum for
       Pollutant or pollutant property         Maximum for     monthly
                                                any 1 day      average
------------------------------------------------------------------------
                                               kg/1,000 kkg (pounds per
                                               million pounds) of metal
                                                        poured
                                             ---------------
Copper (T)..................................        0.0428        0.0236
Lead (T)....................................        0.117         0.0576
Zinc (T)....................................        0.217         0.0827
TTO.........................................        0.0797        0.026
Oil and grease (for alternate monitoring)...        4.43          1.48
------------------------------------------------------------------------

    (h) Slag Quench Operations. (1) Applicable to plants that are 
casting primarily ductile iron, to plants that are casting primarily 
malleable iron where greater than 3,557 tons of metal are poured per 
year, and to plants that are casting primarily gray iron where greater 
than 1,784 tons of metal are poured per year.

                                  PSES
------------------------------------------------------------------------
                                                             Maximum for
       Pollutant or pollutant property         Maximum for     monthly
                                                any 1 day      average
------------------------------------------------------------------------
                                               kg/1,000 kkg (pounds per
                                               million pounds) of metal
                                                        poured
                                             ---------------
Copper (T)..................................        0.0527       0.0291
Lead (T)....................................        0.0964       0.0473
Zinc (T)....................................        0.178        0.0673
TTO.........................................        0.0257       0.00838
Oil and grease (for alternate monitoring)...        5.46         1.82
------------------------------------------------------------------------


[[Page 589]]

    (2) Applicable to plants that are casting primarily steel, to plants 
that are casting primarily malleable iron where equal to or less than 
3,557 tons of metal are poured per year, and to plants that are casting 
primarily gray iron where equal to or less than 1,784 tons of metal are 
poured per year.

                                  PSES
------------------------------------------------------------------------
                                                             Maximum for
       Pollutant or pollutant property         Maximum for     monthly
                                                any 1 day      average
------------------------------------------------------------------------
                                               kg/1,000 kkg (pounds per
                                               million pounds) of metal
                                                        poured
                                             ---------------
Copper (T)..................................        0.0527       0.0291
Lead (T)....................................        0.144        0.0709
Zinc (T)....................................        0.267        0.102
TTO.........................................        0.0257       0.00838
Oil and grease (for alternate monitoring)...        5.46         1.82
------------------------------------------------------------------------

    (i) West Sand Reclamation Operations. (1) Applicable to plants that 
are casting primarily ductile iron, to plants that are casting primarily 
malleable iron where greater than 3,557 tons of metal are poured per 
year, and to plants that are casting gray iron where greater than 1,784 
tons of metal are poured per year.

                                  PSES
------------------------------------------------------------------------
                                                            Maximum for
      Pollutant or pollutant property        Maximum for      monthly
                                              any 1 day       average
------------------------------------------------------------------------
                                              kg/1,000 kkg (pounds per
                                               million pounds) of sand
                                                      reclaimed
                                           ----------------
Copper (T)................................         0.217          0.12
Lead (T)..................................         0.396          0.194
Zinc (T)..................................         0.732          0.276
Total Phenols.............................         0.642          0.224
TTO.......................................         1.18           0.386
Oil and grease (for alternate monitoring).        22.4            7.47
------------------------------------------------------------------------

    (2) Applicable to plants that are casting primarily steel, to plants 
that are casting primarily malleable iron where equal to or less than 
3,557 tons of metal are poured per year, and to plants that are casting 
primarily gray iron where equal to or less than 1,784 tons of metal are 
poured per year.

                                  PSES
------------------------------------------------------------------------
                                                            Maximum for
      Pollutant or pollutant property        Maximum for      monthly
                                              any 1 day       average
------------------------------------------------------------------------
                                              kg/1,000 kkg (pounds per
                                               million pounds) of sand
                                                      reclaimed
                                           ----------------
Copper (T)................................         0.217          0.12
Lead (T)..................................         0.59           0.291
Zinc (T)..................................         1.1            0.418
Total Phenols.............................         0.642          0.224
TTO.......................................         1.18           0.386
Oil and grease (for alternate monitoring).        22.4            7.47
------------------------------------------------------------------------


[50 FR 45247, Oct. 30, 1985; 51 FR 21762, June 16, 1986]