SDAPCD RULE X-QQ STDS.OF PERF.:GRPH.ARTS IND.:PUB.ROT.PRTNG.          
LAST REVISED 12/22/83

          
          SUBPART QQ  -  Standards of Performance for the Graphic Arts
                         Industry: Publication Rotogravure Printing   
                         (Delegation Effective 12/22/83)


               RULE 260.430.  APPLICABILITY AND DESIGNATION OF AFFECTED
                              FACILITY

               (a)  Except as provided in Section (b) of this rule, the
          affected facility to which the provisions of this subpart apply
          is each publication rotogravure printing press.

               (b)  The provisions of this subpart do not apply to proof
          presses.

               (c)  Any facility under Section (a) of this rule that
          commences construction, modification, or reconstruction after
          October 28, 1980 is subject to the requirements of this subpart.


               RULE 260.431.   DEFINITIONS AND NOTATIONS

               All terms used in this subpart that are not defined below
          have the meaning given to them in the Act and in Subpart A of
          this Regulation.

               (a)  "Automatic Temperature Compensator" means a device that
          continuously senses the temperature of fluid flowing through a
          metering device and automatically adjusts the registration of the
          measured volume to the corrected equivalent volume at a base
          temperature.

               (b)  "Base Temperature" means an arbitrary reference
          temperature for determining liquid densities or adjusting the
          measured volume of a liquid quantity.

               (c)  "Density" means the mass of a unit volume of liquid,
          expressed as grams per cubic centimeter, kilograms per liter, or
          pounds per gallon, at a specified temperature.

               (d)  "Gravure Cylinder" means a printing cylinder with an
          intaglio image consisting of minute cells or indentations
          specially engraved or etched into the cylinder's surface to hold
          ink when continuously revolved through a fountain of ink.

               (e)  "Performance Averaging Period" means 30 calendar days,
          one calendar month, or four consecutive weeks as specified in
          sections of this subpart.

               (f)  "Proof Press" means any device used only to check  the
          quality of the image formation of newly engraved or etched
          gravure cylinders and prints only non-saleable items.

               (g)  "Publication Rotogravure Printing Press" means any
          number of rotogravure printing units capable of printing
          simultaneously on the same continuous web or substrate and
          includes any associated device for continuously cutting and
          folding the printed web, where the following saleable paper
          products are printed:

                    (i)  Catalogues, including mail order and premium;

                    (ii) Direct mail advertisements, including circulars,
               letters, pamphlets, cards, and printed envelopes;

                    (iii)Display advertisements, including general posters,
               outdoor advertisements, car cards, window posters; counter
               and floor displays; point-of-purchase, and other printed
               display material;

                    (iv) Magazines;

                    (v)  Miscellaneous advertisements, including brochures,
               pamphlets, catalogue sheets, circular folders,
               announcements, package inserts, book jackets, market
               circulars, magazine inserts, and shopping news;

                    (vi) Newspapers, magazine and comic supplements for
               newspapers, and preprinted newspaper inserts, including hi-
               fi and spectacolor rolls and sections;

                    (vii) Periodicals, and

                    (viii) Telephone and other directories, including
               business reference services.

               (h)  "Raw Ink" means all purchased ink.

               (i)  "Related Coatings" means all non-ink purchased liquids
          and liquid solid mixtures containing VOC solvent, usually
          referred to as extenders or varnishes, that are used at publica-
          tion rotogravure printing presses.

               (j)  "Rotogravure Printing Unit" means any device designed
          to print one color ink on one side of a continuous web or
          substrate using a gravure cylinder.

               (k)  "Solvent-Borne Ink Systems" means ink and related
          coating mixtures whose volatile portion consists essentially of
          VOC solvent with not more than five weight percent water, as
          applied to the gravure cylinder.

               (l)  "Solvent Recovery System" means an air pollution
          control system by which VOC solvent vapors in air or other gases
          are captured and directed through a condenser(s) or a vessel(s)
          containing beds of activated carbon or other adsorbents.  For the
          condensation method, the solvent is recovered directly from the
          condenser.  For the adsorption method, the vapors are adsorbed,
          then desorbed by steam or other media, and finally condensed and
          recovered.

               (m)  "VOC" means volatile organic compound.

               (n)  "VOC Solvent" means an organic liquid or liquid mixture
          consisting of VOC components.

               (o)  "Waterborne Ink Systems" means ink and related coating
          mixtures whose volatile portion consists of a mixture of VOC
          solvent and more than five weight percent water, as applied to
          the gravure cylinder.

               Symbols used in this subpart are defined as follows:

          Da   =    the density at the base temperature of VOC solvent used
                    or recovered during one performance averaging period.

          Dci  =    the density of each color of raw ink and each related
                    coating (i) used at the subject facility (or
                    facilities), at the coating temperature when the volume
                    of coating used is measured.

          Ddi  =    the density of each VOC solvent (i) added to the ink
                    for dilution at the subject facility (or facilities) at
                    the solvent temperature when the volume of cleaning
                    solvent used is measured.

          Dhi  =    the density of each quantity of water (i) added at the
                    subject facility (or facilities) for dilution of
                    waterborne ink systems at the water temperature when
                    the volume of dilution water used is measured.

          Dgi  =    the density of each VOC solvent (i) used as a cleaning
                    agent at the subject facility (facilities), at the
                    solvent temperature when the volume of cleaning solvent
                    used is measured.

          Dmi  =    the density of each quantity of VOC solvent and
                    miscellaneous solvent borne waste inks and waste VOC
                    solvents (i) recovered from the subject facility (or
                    facilities), at the solvent temperature when the volume
                    of solvent recovered is measured.

          Doi  =    the density of the VOC solvent contained in each raw
                    ink and related coating (i) used at the subject
                    facility (or facilities), at the coating temperature
                    when the volume of coating used is measured.

          Dwi  =    the density of the water contained in each waterborne
                    raw ink and related coating (i) used at the subject
                    facility (or facilities), at the coating temperature
                    when the volume of coating used is measured.

          Lci  =    the measured liquid volume of each color of raw ink and
                    each related coating (i) used at the facility of a
                    corresponding VOC content, Voi or Woi, with a VOC
                    density, Doi, and a coating density, Dci.

          Ldi  =    the measured liquid volume of each VOC solvent (i) with
                    corresponding density, Ddi, added to dilute the ink
                    used at the subject facility (or facilities) during one
                    performance averaging period.

          Lgi  =    the measured liquid volume of each VOC solvent (i) with
                    a corresponding density, Dgi, used as a cleaning agent
                    at the subject facility (or facilities) during one
                    perfor-mance averaging period.

          Lhi  =    the measured liquid volume of each quantity of water
                    (i) with a corresponding density, Dhi, added for
                    dilution with waterborne ink systems used at the
                    subject facility (or facilities) during one performance
                    averaging period.

          Lmi  =    the measured liquid volume of each VOC solvent and
                    miscellaneous solvent-borne waste inks and waste VOC
                    solvents (i) with a corresponding density, Dmi,
                    recovered from the subject facility (or facilities)
                    during one performance averaging period.

          Lo   =    the total liquid volume, density-corrected to the base
                    temperature, of VOC solvent contained in the raw inks
                    and related coatings used at the subject facility
                    during one performance averaging period.

          Lr   =    the total liquid volume, density-corrected to the base
                    temperature, of VOC solvent recovered from the subject
                    facility (or facilities) during one performance
                    averaging period.

          Lt   =    the total volume, density-corrected to the base
                    temperature, of VOC solvent used at the subject
                    facility (or facilities) during one performance
                    averaging period.

          Mci  =    the mass, determined by direct weighing, of each color
                    of raw ink and each related coating (i) used at the
                    subject facility (or facilities).

          Md   =    the mass, determined by direct weighing, of VOC solvent
                    added to dilute the ink used at the subject facility
                    (or facilities) during one performance averaging
                    period.

          Mg   =    the mass, determined by direct weighing, of VOC solvent
                    used as a cleaning agent at the subject facility (or
                    facilities) during one performance averaging period.

          Mh   =    the mass, determined by direct weighing, of water added
                    for dilution with waterborne ink systems used at the
                    subject facility (or facilities) during one performance
                    averaging period.

          Mm   =    the mass, determined by direct weighing, of VOC solvent
                    and miscellaneous solvent-borne waste inks and waste
                    VOC solvents recovered from the subject facility (or
                    facilities) during one performance averaging period.
          Mo   =    the total mass of VOC solvent contained in the raw inks
                    and related coatings used at the subject facility (or
                    facilities) during one performance averaging period.

          Mr   =    the total mass of VOC solvent recovered from the
                    subject facility (or facilities) during one performance
                    averaging period.

          Mt   =    the total mass of VOC solvent used at the subject
                    facility (or facilities) during one performance
                    averaging period.

          Mv   =    the total mass of water used with waterborne ink
                    systems at the subject facility (or facilities) during
                    one performance averaging period.

          Mw   =    the total mass of water contained in the waterborne raw
                    inks and related coatings used at the subject facility
                    (or facilities) during one performance averaging
                    period.

          P    =    the average VOC emission percentage for the subject
                    facility (or facilities) during one performance
                    averaging period.

          Voi  =    the liquid VOC content, expressed as volume fraction of
                    VOC volume per total volume of coating, of each color
                    of raw ink and related coating (i) used at the subject
                    facility (or facilities).

          Vwi  =    the water content, expressed as a volume fraction of
                    water volume per total volume of coating of each color
                    of waterborne raw ink and related coating (i) used at
                    the subject facility (or facilities).

          Woi  =    the VOC content, expressed as a weight fraction of mass
                    of VOC per total mass of coating, of each color of raw
                    ink and related coating (i) used at the subject
                    facility (or f acilities).

          Wwi  =the water content, expressed as a weight fraction of mass
               of water per total mass of coating, of each color of
               waterborne raw ink and related coating (i) used at the
               subject facility (or facilities).

               The following subscripts are used in this subpart with the
          above symbols to denote the applicable facility:

               a    =    affected facility.

               b    =    both affected and existing facilities controlled
                         in common by the same air pollution control
                         equipment.

               e    =    existing facility.

               f    =    all affected and existing facilities located
                         within the same plant boundary.


               RULE 260.432.   STANDARD FOR VOLATILE ORGANIC COMPOUNDS

               During the period of the performance test required to be
          conducted by Rule 260.8 and after the date required for
          completion of the test, no owner or operator subject to the
          provisions of this subpart shall cause to be discharged into the
          atmosphere from any affected facility VOC equal to more than 16
          percent of the total mass of VOC solvent and water used at that
          facility during any one performance averaging period.  The water
          used includes only that water contained in the waterborne raw
          inks and related coatings and the water added for dilution with
          waterborne ink systems.


               RULE 260.433.  PERFORMANCE TEST AND COMPLIANCE
                              PROVISIONS

               (a)  The owner or operator of any affected facility (or
          facilities) shall conduct performance tests in accordance with
          Rule 260.8, under the following conditions:

                    (1)  The performance averaging period for each test is
               30 consecutive calendar days and not an average of three
               separate runs as prescribed under Rule 260.8(f).

                    (2)  Except as provided under Sections (f) and (g) of
               this rule, if affected facilities routinely share the same
               raw ink storage/handling system with existing facilities,
               then temporary measurement procedures for segregating the
               raw inks, related coatings, VOC solvent, and water used at
               the affected facilities must be employed during the test.
               For this case, an overall emission percentage for the
               combined facilities as well as for only the affected
               facilities must be calculated during the test.

                    (3)  For the purpose of measuring bulk storage tank
               quantities of each color of raw ink and each related coating
               used, the owner or operator of any affected facility shall
               install, calibrate, maintain, and continuously operate
               during the test one or more

                         (i)  Non-resettable totalizer metering device(s)
                    for indicating the cumulative liquid volumes used at
                    each affected facility; or

                         (ii) Segregated storage tanks for each affected
                    facility to allow determination of the liquid
                    quantities used by measuring devices other than the
                    press meters required under item (i) of this section;
                    or

                         (iii)Storage tanks to serve more than one facility
                    with the liquid quantities used determined by measuring
                    devices other than press meters, if facilities are com-
                    bined as described under Sections (d), (f), or (g) of
                    this rule.

                    (4)  The owner or operator may choose to install an
               automatic temperature compensator with any liquid metering
               device used to measure the raw inks, related coatings,
               water, or VOC solvent used, or VOC solvent recovered.

                    (5)  Records of the measured amounts used at the
               affected facility and the liquid temperature at which the
               amounts were measured are maintained for each shipment of
               all purchased material or on at least a weekly basis for --

                         (i)  The raw inks and related coatings used;

                         (ii) The VOC and water content of each raw ink and
                    related coating used as determined according to Rule
                    260.435;

                         (iii)The VOC solvent and water added to the inks
                    used;

                         (iv) The VOC solvent used as a cleaning agent; and

                         (v)  The VOC solvent recovered.

                    (6)  The density variations with temperature of the raw
               inks, related coatings, VOC solvents used, and VOC solvent
               recovered are determined by the methods stipulated in Rule
               260.435(d).

                    (7)  The calculated emission percentage may be reported
               as rounded-off to the nearest whole number.

                    (8)  Printing press startups and shutdowns are not
               included in the exemption provisions under Rule 260.8(c).
               Frequent periods of press startups and shutdowns are normal
               operations and constitute representative conditions for the
               purpose of a performance test.

               (b)  If an affected facility uses waterborne ink systems or
          a combination of waterborne and solvent borne ink systems with a
          solvent recovery system, compliance is determined by the
          following procedures, except as provided in Sections (d), (e),
          (f), and (g) of this rule.

                    (1)  The mass of VOC in the solvent-borne and
               waterborne raw inks and related coatings used is determined
               by the following equations:

            k                 m                        n
    (Mo)a =  (Mci)a (Woi)a +  (Lci)a (Dci)a (Woi)a +  (Lci)a (Voi)a (Doi)a
           i=1               i=1                      i=1

               where:

                    k    is the total number of raw inks and related
                         coatings measured as used in direct mass
                         quantities with different amounts of VOC content.

                    m    is the total number of raw inks and related
                         coatings measured as used by volume with different
                         amounts of VOC content or different densities.

                    n    is the total number of raw inks and related
                         coatings measured as used by volume with different
                         amounts of VOC content or different VOC solvent
                         densities.

                    (2)  The total mass of VOC used is determined by the
               following equation:

                           m                         n
           (Mt)a = (Mo)a +  (Ldi)a (Ddi)a + (Md)a +  (Lgi)a (Dgi)a + (Mg)a
                          i=1                       i=1

               where "m" and "n" are the respective total numbers of VOC
               dilution and cleaning solvents measured as used by volume
               with different densities.

                    (3)  The mass of water in the waterborne raw inks and
               related coatings used is determined by the following
               equation:

            k                 m                        a
    (Mw)a =  (Mci)a (Wwi)a +  (Lci)a (Dci)a (Wwi)a +  (Lci)a (Vwi)a (Dwi)a
           i=1               i=1                      i=1

               k    is the total number of raw inks and related coatings
                    measured as used in direct mass quantities with
                    different amounts of water content.

               m    is the total number of raw inks and related coatings
                    measured as used by volume with different amounts of
                    water content or different densities.

               n    is the total number of raw inks and related coatings
                    measured as used by volume with different amounts of
                    water content or different water densities.

                    (4)  The total mass of water used is determined by the
               following equation:

                                                   k
               (Mv)a   =   (Mw)a   +   (Mh)a   +     (Lhi)a  (Dhi)a
                                                  i=1

               where "m" is the total number of water dilution additions
               measured as used by volume with different densities.

                    (5)  The total mass of VOC solvent recovered is
               determined by the following equation:

                                                 k
                         (Mr)a   =   (Mm)a   +      (Lmi)a (Dmi)a
                                                i=1

               where "k" is the total number of VOC solvents, miscellaneous
               solvent-borne waste inks, and waste VOC solvents measured as
               recovered by volume with different densities.

                    (6)  The average VOC emission percentage for the
               affected facility is determined by the following equation:

                       (Mt)a  -  (Mr)a  
                Pa =[ ---------------- ]  x   100
                       (Mt)a  +  (Mv)a
                          

               (c)  If an affected facility controlled by a solvent
          recovery system uses only solvent-borne ink systems, the owner or
          operator may choose to determine compliance on a direct mass or a
          density-corrected liquid volume basis.  Except as provided in
          Sections (d), (e), (f), and (g) of this rule, compliance is
          determined as follows:

                    (1)  On a direct mass basis, compliance is determined
               according to Section (b) of this rule, except that the water
               term, Mv, does not apply.

                    (2)  On a density-corrected liquid volume basis,
               compliance is determined by the following procedures:

                         (i)  A base temperature corresponding to that for
                    the largest individual amount of VOC solvent used or
                    recovered from the affected facility, or other
                    reference temperature, is chosen by the owner or
                    operator.

                         (ii) The corrected liquid volume of VOC in the raw
                    inks and related coatings used is determined by the
                    following equation:

                   k  (Mci)a (Woi)a     m  (Lci)a (Dci)a (Woi)a                
         (Lo)a  =    -------------  +    ---------------------
                  i=1      DB          i=1          DB

                   n    (Lci)a (Voi)a (Doi)a
                +     ----------------------
                  i=1          DB       

               where,

               k    is the total number of raw inks and related coatings
                    measured as used in direct mass quantities with
                    different amounts of VOC content.

               m    is the total number of raw inks and related coatings
                    measured as used by volume with different amounts of
                    VOC content or different densities.

               n    is the total number of raw inks and related coatings
                    measured as used by volume with different amounts of
                    VOC content or different VOC solvent densities.

                         (iii)The total corrected liquid volume of VOC used
                    is determined by the following equation:

                           m (Ldi)a (Ddi)a       (Md)a                                   
          (Lr)a = (Lo)a +   --------------  +  ------- +  
                          i=1     DB               DB                     

            n      (Lgi)a (Dgi)a     (Mg)a
                 --------------- + -------
           i=1         DB             DB


               where "m" and "n" are the respective total numbers of VOC
          dilution and cleaning solvents measured as used by volume with
          different densities.

                         (iv) The total corrected liquid volume of VOC
                    solvent recovered is determined by the following
                    equation:

                               (Mn)a      k   (Lmi)a (Dmi)a
                    (Lr)a  =  -------  +    ---------------
                                 DB      i=1       DB

               where "k" is the total number of VOC solvents, miscellaneous
          solvent-borne waste inks, and waste VOC solvents measured as
          recovered by volume with different densities.

                         (v)  The average VOC emission percentage for the
                    affected facility is determined by the following
                    equation:
                                        (Lt)a - (Lr)a
                              Pa  =   { -------------]    x   100
                                            (Lt)a

               (d)  If two or more affected facilities are controlled by
          the same solvent recovery system, compliance is determined by the
          procedures specified in Sections (b) or (c) of this rule,
          whichever applies, except that (Lt)a and (Lr)a, (Mt)a, (Mr)a, and
          (Mv)a, are the collective amounts of VOC solvent and water
          corresponding to all the affected facilities controlled by that
          solvent recovery system.  The average VOC emission percentage for
          each of the affected facilities controlled by that same solvent
          recovery system is assumed to be equal.

               (e)  Except as provided under Section (f) of this rule, if
          an existing facility (or facilities) and an affected facility (or
          facilities) are controlled in common by the same solvent recovery
          system, the owner or operator shall determine compliance by
          conducting a separate emission test on the existing facility (or
          facilities) and then conducting a performance test on the
          combined facilities as follows:

                    (1)  Before the initial startup of the affected
               facility (or facilities) and at any other time as requested
               by the Control Officer, the owner or operator shall conduct
               emission test(s) on the existing facility (or facilities)
               controlled by the subject solvent recovery system.  The
               solvent recovery system must handle VOC emissions from only
               the subject existing facility (or facilities), not from
               affected facilities, during the emission test.

                    (2)  During the emission test, the affected facilities
               are subject to the standard stated in Rule 260.432.

                    (3)  The emission test is conducted over a 30
               consecutive calendar day averaging period according to the
               conditions stipulated in Rule 260.433(a)(1) through (a)(5),
               except that the conditions pertain to only existing
               facilities instead of affected facilities.

                    (4)  The owner or operator of the existing facility (or
               facilities) shall provide the Control Officer at least 30
               days prior notice of the emission test to afford the Control
               Officer the opportunity to have an observer present.

                    (5)  The emission percentage for the existing facility
               (or facilities) during the emission test is determined by
               one of the following procedures.

                         (i)  If the existing facility (or facilities) uses
                    a combination of waterborne and solvent-borne ink
                    systems, the average VOC emission percentage must be
                    determined on a direct mass basis according to Sections
                    (b) or (d) of this rule, whichever applies, with the
                    following equation:

                                      (Mt)e - (Mr)e
                              Pe  = [ -------------]    x  100
                                      (Mt)e + (Mv)e

                    where the water and VOC solvent amounts pertain to only
          existing facilities.

                         (ii) If the existing facility (or facilities) used
                    only solvent-borne ink systems, the owner or operator
                    may choose to determine the emission percentage either
                    on a direct mass basis or a density-corrected liquid
                    volume basis according to Section (c) or (d) of this
                    rule, whichever applies.   On a direct mass basis, the
                    average VOC emission percentage is determined by the
                    equation presented in Subsection (e)(5)(i) of this
                    rule.  On a density-corrected liquid volume basis, the
                    average VOC emission percentage is determined by the
                    following equation:

                                        (Lt)e - (Lr)e
                              Pe   =  [ ------------- ]   x   100
                                            (Lt)e

                    where the VOC solvent amounts pertain to only existing
          facilities.

                    (6)  The owner or operator of the existing facility (or
               facilities) shall furnish the Control Officer a written
               report of the results of the emission test.

                    (7)  After completion of the separate emission  test on
               the existing facility (or facilities), the owner or operator
               shall conduct performance test(s) on the combined facilities
               with the solvent recovery system handling VOC emissions from
               both the existing and affected facilities.

                    (8)  During performance test(s), the emission
               percentage for the existing facility (or facilities), Pe, is
               assumed to be equal to that determined in the latest
               emission test.  The Control Officer may request additional
               emission tests if any physical or operational changes occur
               to any of the subject existing facilities.

                    (9)  The emission percentage for the affected facility
               (or facilities) during performance test(s) with both
               existing and affected facilities connected to the solvent
               recovery system is determined by one of the following
               procedures:

                         (i)  If any of the combined facilities uses both
                    waterborne and solvent-borne ink systems, the average
                    VOC emission percentage must be determined on a direct
                    mass basis according to Sections (b) or (d) of this
                    rule, whichever applies, with the following equation:

                                         Pe
                     (Mt)b  -  (Mr)b -  ---     [(Mt)e + (Mv)e]
                                        100
           Pa  =     -------------------------------------------   x  100
                                   (Mt)a + (Mv)a

          where (Mt)b and (Mr)b are the collective VOC solvent amounts
          pertaining to all the combined facilities.

                         (ii) If all of the combined facilities use only
                    solvent-borne ink systems, the owner or operator may
                    choose to determine performance of the affected
                    facility (or facilities) either on a direct mass basis
                    or a density-corrected liquid volume basis according to
                    Sections (c) or (d) of this rule, whichever applies.

                         On a direct mass basis, the average VOC emission
                    percentage is determined by the equation presented in
                    Subsection (e)(9)(i) of this rule.  On a density-
                    corrected liquid volume basis, the average VOC emission
                    percentage is determined by the following equation:

                                                         Pe
                              (Lt)b  -  (Lr)b - (Lt)e  [ --- ]
                                                         100
                    Pa  =     ---------------------------------   x  100
                                            (Lt)a 


                    where (Lt)b and (Lr)b are the collective VOC solvent
                    amounts pertaining to all the combined facilities.

               (f)  The owner or operator may choose to show compliance of
          the combined performance of existing and affected facilities
          controlled in common by the same solvent recovery system.  A
          separate emission test for existing facilities is not required
          for this option.  The combined performance is determined by one
          of the following procedures:

                    (1)  If any of the combined facilities uses both
               waterborne and solvent-borne ink systems, the combined
               average VOC emission percentage must be determined on a
               direct mass basis according to Sections (b) or (d) of this
               rule, whichever applies with the following equation:

                        (Mt)b  -  (Mr)b   
               Pb   = [ --------------- ]  x   100         
                        (Mt)b  +  (Mv)b

                    (2)  If all of the combined facilities use only
               solvent-borne ink systems, the owner or operator may choose
               to determine performance either on a direct mass basis or a
               density-corrected liquid volume basis according to Sections
               (c) or (d) of this rule, whichever applies.  On a direct
               mass basis, the average VOC emission percentage is
               determined by the equation presented in Subsection (f)(1) of
               this rule.  On a density corrected liquid volume basis, the
               average VOC emission percentage is determined by the
               following equation:

                                      (Lt)b - (Lr)b
                              Pb  = [ -------------  Y ]   x  100
                                          (Lt)b

               (g)  If all existing and affected facilities located within
          the same plant boundary use waterborne ink systems or solvent-
          borne ink systems with solvent recovery systems, the owner or
          operator may choose to show compliance on a plantwide basis for
          all the existing and affected facilities together.  No separate
          emission tests on existing facilities and no temporary segregated
          liquid measurement procedures for affected facilities are
          required for this option.  The plantwide performance is
          determined by one of the following procedures.

                    (1)  If any of the facilities use waterborne ink
               systems, the total plant average VOC emission percentage
               must be determined on a direct mass basis according to
               Subsection (b) of this rule with the following equation:

                            (Mt)f  -  (Mr)a  -  (Mr)e  -  (Mr)b
                    Pf  = [ ------------------------------------ ]  x 100
                                      (Mt)f  +  (Mv)f

               where (Mt)f and (Mv)f are the collective VOC solvent and
          water amounts used at all the subject plant facilities during the
          performance test.

                    (2)  If all the plant facilities use only solvent-borne
               ink systems, the owner or operator may choose to determine
               performance either on a direct mass basis or a density-
               corrected liquid volume basis according to Subsection (c) of
               this rule.  On a direct mass basis, the total plant average
               VOC emission percentage is determined by the equation
               presented in Subsection (i) of this rule.  On a density-
               corrected liquid volume basis the total plant average VOC
               emission percentage is determined by the following equation:

                          (Lt)f - (Lr)a - (Lr)e - (Lr)b       
                   Pf = [ ----------------------------- ]  x  100              
                                      (Lt)f

               where (Lt)f is the collective VOC solvent amount used at all
               the subject plant facilities during the performance test.

          [Sec. 114 of the Clean Air Act as amended (42 U.S.C. 7414)]


               RULE 260.434.  MONITORING OF OPERATIONS AND RECORDKEEPING

                    (a)  After completion of the performance test required
               under Rule 260.8, the owner or operator of any affected
               facility using waterborne ink systems or solvent-borne ink
               systems with solvent recovery systems shall record the
               amount of solvent and water used, solvent recovered, and
               estimated emission percentage for each performance averaging
               period and shall maintain these records for 2 years.  The
               emission percentage is estimated as follows:

                    (1)  The performance averaging period for monitoring of
               proper operation and maintenance is a calendar month or 4
               consecutive weeks, at the option of the owner or operator.

                    (2)  If affected facilities share the same raw ink
               storage/handling system with existing facilities, solvent
               and water used, solvent recovered, and emission percentages
               for the combined facilities may be documented.  Separate
               emission percentages for only the affected facilities are
               not required in this case.  The combined emission percentage
               is compared to the overall average for the existing and
               affected facilities' emission percentage determined during
               the most recent performance test.

                    (3)  Except as provided in Subsection (a)(4) of this
               rule, temperatures and liquid densities determined during
               the most recent performance test are used to calculate
               corrected volumes and mass quantities.

                    (4)  The owner or operator may choose to measure
               temperatures for determination of actual liquid densities
               during each performance averaging period.  A different base
               temperature may be used for each performance averaging
               period if desired by the owner or operator.

                    (5)  The emission percentage is calculated according to
               the procedures under Rule 260.433(b) through (g), whichever
               applies, or by a comparable calculation which compares the
               total solvent recovered to the total solvent used at the
               affected facility.


               RULE 260.435.  TEST METHODS

               Performance tests shall be conducted as specified in Part 60, 
          Chapter I, Title 40, Code of Federal Regulations, Section 60.435.