The provisions of this §  129.6 adopted September 10, 1971, effective September 11, 1971, 1 Pa.B. 1804; amended March 3, 1972, effective March 20, 1972, 2 Pa.B. 383; reserved April 27, 1979, effective August 1, 1979, 9 Pa.B. 1447; corrected May 11, 1979, effective August 1, 1979, 9 Pa.B. 1534. Immediately preceding text appears at serial pages (4648) to (4649).

MISCELLANEOUS SOURCES

§ 129.11. Nitric acid plants.

   No person may permit the emission into the outdoor atmosphere, at any time, from a nitric acid production plant or facility, of nitrogen oxides, expressed as NO₂, in excess of the rate of 5.5 pounds per ton of acid produced, the production being expressed as 100% HNO₃.

 No person may permit the emission into the outdoor atmosphere, at any time, from a sulfuric acid production plant or facility, of:

   (1)  Sulfur oxides, expressed as SO₂, in excess of the rate of 6.5 pounds per ton of acid produced.

   (2)  Sulfuric acid mist in excess of the rate of .5 pound per ton of acid produced, the production being expressed as 100% H₂ SO₄.

   The provisions of this §  129.12 adopted September 10, 1971, effective September 11, 1971, 1 Pa.B. 1804; amended March 3, 1972, effective March 20, 1972, 2 Pa.B. 383.

 (a)  No person may permit the emission into the outdoor atmosphere, at any time, from a plant used for recovering elemental sulfur from gases containing sulfur compounds, of sulfur oxides, expressed as SO₂, in excess of the rate determined by the formula:

     A = .32E^-.5

 where:

     A = Allowable emissions in pounds of sulfur oxides per pound of sulfur compounds, expressed as S, in the feed gases, and

     E = Recovery plant rating in long tons of sulfur per day.

 (b)  Allowable emissions under this section are graphically indicated in Appendix A.

   The provisions of this §  129.13 adopted September 10, 1971, effective September 11, 1971, 1 Pa.B. 1804; amended March 3, 1972, effective March 20, 1972, 2 Pa.B. 383.

 (a)  Air basins. No person may permit the open burning of material in an air basin.

 (b)  Outside of air basins. No person may permit the open burning of material in an area outside of air basins in a manner that:

   (1)  The emissions are visible, at any time, at the point such emissions pass outside the property of the person on whose land the open burning is being conducted.

   (2)  Malodorous air contaminants from the open burning are detectable outside the property of the person on whose land the open burning is being conducted.

   (3)  The emissions interfere with the reasonable enjoyment of life or property.

   (4)  The emissions cause damage to vegetation or property.

   (5)  The emissions are or may be deleterious to human or animal health.

 (c)  Exceptions. The requirements of subsections (a) and (b) do not apply where the open burning operations result from:

   (1)  A fire set to prevent or abate a fire hazard, when approved by the Department and set by or under the supervision of a public officer.

   (2)  Any fire set for the purpose of instructing personnel in fire fighting, when approved by the Department.

   (3)  A fire set for the prevention and control of disease or pests, when approved by the Department.

   (4)  A fire set in conjunction with the production of agricultural commodities in their unmanufactured state on the premises of the farm operation.

   (5)  A fire set for the purpose of burning domestic refuse, when the fire is on the premises of a structure occupied solely as a dwelling by two families or less and when the refuse results from the normal occupancy of the structure.

   (6)  A fire set solely for recreational or ceremonial purposes.

   (7)  A fire set solely for cooking food.

 (d)  Clearing and grubbing wastes. The following is applicable to clearing and grubbing wastes:

   (1)  As used in this subsection the following terms shall have the following meanings:

     Air curtain destructor—A mechanical device which forcefully projects a curtain of air across a pit in which open burning is being conducted so that combustion efficiency is increased and smoke and other particulate matter are contained.

     Clearing and grubbing wastes—Trees, shrubs and other native vegetation which are cleared from land during or prior to the process of construction. The term does not include demolition wastes and dirt laden roots.

   (2)  Subsection (a) notwithstanding, clearing and grubbing wastes may be burned in a basin subject to the following requirements:

     (i)   Air curtain destructors shall be used when burning clearing and grubbing wastes.

     (ii)   Each proposed use of air curtain destructors shall be reviewed and approved by the Department in writing with respect to equipment arrangement, design and existing environmental conditions prior to commencement of burning. Proposals approved under this subparagraph need not obtain plan approval or operating permits under Chapter 127 (relating to construction, modification, reactivation and operation of sources).

     (iii)   Approval for use of an air curtain destructor at one site may be granted for a specified period not to exceed 3 months, but may be extended for additional limited periods upon further approval by the Department.

     (iv)   The Department reserves the right to rescind approval granted if a determination by the Department indicates that an air pollution problem exists.

   (3)  Subsection (b) notwithstanding clearing and grubbing wastes may be burned outside of an air basin, subject to the following limitations:

     (i)   Upon receipt of a complaint or determination by the Department that an air pollution problem exists, the Department may order that the open burning cease or comply with subsection (b).

     (ii)   Authorization for open burning under this paragraph does not apply to clearing and grubbing wastes transported from an air basin for disposal outside of an air basin.

   (4)  During an air pollution episode, open burning is limited by Chapter 137 (relating to air pollution episodes) and shall cease as specified in that chapter.

   The provisions of this §  129.14 adopted September 10, 1971, effective September 11, 1971, 1 Pa.B. 1804; amended March 3, 1972, effective March 20, 1972, 2 Pa.B. 383; amended July 23, 1976, effective August 9, 1976, 6 Pa.B. 1732; amended August 12, 1977, effective August 29, 1977, 7 Pa.B. 2251. Immediately preceding text appears at serial page (27454).

 (a)  No person may permit the pushing of coke from a coke oven unless the pushing operation is enclosed during the removal of coke from a coke oven and pushing emissions are contained, except for the fugitive pushing emissions, that are allowed by subsections (c) and (e). A device for the enclosure of pushing operations shall be subject to the requirements of Chapter 127 (relating to construction, modification, reactivation and operation of sources) and the grant of plan approval.

 (b)  An application submitted to the Department under Chapter 127 for approval to install an air cleaning device designed to achieve compliance with subsection (a) at an existing coke oven battery shall, in addition to the requirements of § §  123.13(b) and 127.12(a) (relating to processes; and content of applications), show that the air cleaning device is designed to reduce the fugitive emissions from pushing operations at a battery to the minimum attainable through the use of the best available technology following control.

 (c)  Visible fugitive air contaminants in excess of 20% opacity from an air cleaning device installed for the control of pushing emissions under a plan approval from the Department shall be prohibited unless the Department finds that:

   (1)  The emissions are of minor significance with respect to causing air pollution.

   (2)  The emissions will not prevent or interfere with the attainment or maintenance of any ambient air quality standard.

 (d)  Application for a finding under subsection (c) shall be filed in accordance with §  123.1(b) (relating to prohibition of certain fugitive emissions).

 (e)  No person may transport hot coke in the open atmosphere during the pushing operation, unless the visible fugitive air contaminants from the coke do not exceed 10% opacity.

   The provisions of this §  129.15 adopted August 12, 1977, effective August 29, 1977, except subsections (a) and (e) effective December 31, 1977; corrected June 1, 1979, effective December 31, 1977, 9 Pa.B. 1756. Immediately preceding text appears at serial page (35392).

 (a)  In the event a coke oven battery fails to comply with the emission standards contained in §  123.44(a)(2) or (3) (relating to limitations of visible fugitive air contaminants from operation of any coke oven battery) at any time after the effective date of the standards at a coke oven battery, the person responsible for the operation of such coke oven battery shall take the following action:

   (1)  Implement the following work practices:

     (i)   Self-sealing coke oven doors. Work practices for self-sealing coke oven doors shall conform with the following:

       (A)   Within 1 hour after the charge of each oven, the oven doors shall be inspected for visible emissions, and doors found leaking shall be recorded.

       (B)   Doors leaking 1 hour after the charge shall be adjusted prior to the end of the second hour after the charge.

       (C)   Each oven door leaking 1 hour after the charge shall be reinspected for visible emissions 2 hours after the charge. A record shall be made of a door leaking 2 hours after the charge.

       (D)   A door leaking 2 hours after each of two successive charges shall be replaced with a repaired, rebuilt or new door prior to the next charge to that oven.

       (E)   An adequate supply of repaired, rebuilt and new doors shall be maintained onsite to allow the frequency of replacement necessary to comply with this subsection.

       (F)   If a newly installed, repaired, rebuilt or new door leaks more than 2 hours after charge, the door and jamb shall be inspected when the door is next removed from the oven. If the door is found to be defective, it shall be replaced with a repaired, rebuilt or new door prior to the next charge to that oven. If the door is not found to be defective, the jamb shall be replaced prior to the next charge to that oven.

     (ii)   Luted doors. Work practices for luted doors shall conform with the following:

       (A)   Luted doors leaking 15 minutes after the charge shall be immediately reluted.

       (B)   Doors which fail to seal after the first reluting shall be recorded.

       (C)   Leaks appearing after the first reluting shall be immediately alluted.

     (iii)   Chuck doors. Work practices for chuck doors shall conform with the following:

       (A)   Within 1 hour after the charge of each oven, the chuck door shall be inspected and a door found leaking shall be recorded.

       (B)   Chuck doors leaking 1 hour after the charge shall be gasketed prior to the next charge to that oven.

       (C)   If a freshly gasketed door is leaking 1 hour after the charge, it or the oven door shall be replaced prior to the next charge to that oven.

     (iv)   Cleaning. Doors and jambs shall be completely cleaned prior to each charge.

   (2)  Keep and maintain records of the inspections required by paragraph (1), including the names of inspectors, the date and time of each door inspection and ovens observed leaking.

   (3)  Within 90 days following a determination by the Department or the battery operator that this section is applicable, the person responsible for the operation of a coke oven battery shall submit to the Department for approval a work practice and maintenance manual which shall include, but not be limited to, the job titles of persons having responsibility for the various tasks required by paragraph (1), specify procedures to be followed to assure implementation of the requirements of paragraph (1), and state the numbers of replacement doors and jambs to be kept on site for each battery.

 (b)  In addition to, or as a substitute for, the requirements of subsection (a)(1)—(3), the Department may issue an order establishing further obligations with respect to the control of door area emissions in the event compliance with §  123.44(a)(2) and (3) is not consistently achieved within the time allowed by an approved deferred compliance schedule. The obligations may include, but is not limited to, the specification of the maintenance and work practices as the Department finds will achieve consistent compliance with the standards and the installation of best available technology for door sealing or for the capture and cleaning of door area emissions.

 (a)  A person may not cause or permit the emission into the outdoor atmosphere of total reduced sulfur from kraft pulp mills in excess of the quantities in the following table:

 (b)  Total reduced sulfur emissions shall be monitored continuously at recovery furnaces, digester systems and multiple effect evaporator systems unless emissions are incinerated at 1,200°F for .5 seconds or incinerated to provide equivalent total reduced sulfur control.

   (1)  Monitors, installation, operation, maintenance and reporting shall be as prescribed in Chapter 139 (relating to sampling and testing).

   (2)  TRS monitoring systems installed under this section shall meet the minimum data availability requirements in Chapter 139 Subchapter C (relating to requirements for source monitoring for stationary sources).

   (3)  The Department may use the data from the monitoring systems or from an alternate monitoring system to determine compliance with subsection (a).

   (4)  Source owners and operators shall achieve compliance with these monitoring provisions by May 7, 1991.

 (c)  Compliance with subsection (a) shall be achieved in accordance with the following schedule:

   The provisions of this §  129.17 issued under section 5 of the Air Pollution Control Act (35 P. S. §  4005).

 (a)  The conditions of this section apply to municipal waste incinerators.

 (b)  The Department may require continuous monitoring for chemical species or process parameters which may include the following:

   (1)  Hydrogen chloride (HCl).

   (2)  Sulfur dioxide (SO₂).

   (3)  Nitrogen oxides (NO_x).

   (4)  Carbon monoxide (CO).

   (5)  Combustion Efficiency (C. E.)

   (6)  Temperature.

   (7)  Opacity.

   (8)  Oxygen (O₂).

 (c)  Continuous monitoring systems installed under this section shall meet the minimum data availability requirements in Chapter 139 Subchapter C (relating to requirements for source monitoring for stationary sources).

   The provisions of this §  129.18 issued under section 5 of the Air Pollution Control Act (35 P. S. §  4005).

   The provisions of this §  129.18 adopted October 26, 1990, effective October 27, 1990, 20 Pa.B. 5416.

SOURCES OF VOCs

§ 129.51. General.

 (a)  Equivalency. Compliance with § §  129.52 and 129.54—129.73 may be achieved by alternative methods if the following exist:

   (1)  The alternative method is approved by the Department in an applicable plan approval or operating permit, or both.

   (2)  The resulting emissions are equal to or less than the emissions that would have been discharged by complying with the applicable emission limitation.

   (3)  Compliance by a method other than the use of a low VOC coating or ink which meets the applicable emission limitation in § §  129.52, 129.67 and 129.73 (relating to surface coating processes; graphic arts systems; and aerospace manufacturing and rework) shall be determined on the basis of equal volumes of solids.

   (4)  Capture efficiency testing and emissions testing are conducted in accordance with methods approved by the EPA.

   (5)  Adequate records are maintained to ensure enforceability.

   (6)  The alternative compliance method is incorporated into a plan approval or operating permit, or both, reviewed by the EPA, including the use of an air cleaning device to comply with §  129.52, §  129.67, §  129.68(b)(2) and (c)(2) or §  129.73.

 (b)  New source performance standards. Sources covered by new source performance standards which are more stringent than those contained in this chapter shall comply with those standards in lieu of the standards found in this chapter.

 (c)  Demonstration of compliance. Test methods and procedures used to monitor compliance with the emission requirements of this section are those specified in Chapter 139 (relating to sampling and testing).

 (d)  Records. The owner or operator of a facility or source subject to the VOC emission limitations and control requirements in this chapter shall keep records to demonstrate compliance with the applicable limitation or control requirement.

   (1)  The records shall provide sufficient data and calculations to clearly demonstrate that the emission limitations or control requirements are met. Data or information required to determine compliance with an applicable limitation shall be recorded and maintained in a time frame consistent with the averaging period of the standard.

   (2)  The records shall be retained at least 2 years and shall be made available to the Department on request.

   (3)  An owner or operator claiming that a facility or source is exempt from the VOC control provisions of this chapter shall maintain records that clearly demonstrate to the Department that the facility or source is not subject to the VOC emission limitations or control requirements.

   The provisions of this §  129.51 amended under section 5 of the Air Pollution Control Act (35 P. S. §  4005).

   The provisions of this §  129.51 adopted April 27, 1979, effective August 1, 1979, 9 Pa.B. 1534; corrected May 11, 1979, effective August 1, 1979, 9 Pa.B. 1534; amended August 12, 1983, effective August 13, 1983, 13 Pa.B. 2478; amended August 2, 1991, effective August 3, 1991, 21 Pa.B. 3406; amended May 22, 1992, effective May 23, 1992, 22 Pa. B. 2720; amended April 9, 1999, effective April 10, 1999, 29 Pa.B. 1879. Immediately preceding text appears at serial pages (199516) to (199517).

 (a)  This section applies to a surface coating process category, regardless of the size of the facility, which emits or has emitted VOCs into the outdoor atmosphere in quantities greater than 3 pounds (1.4 kilograms) per hour, 15 pounds (7 kilograms) per day or 2.7 tons (2,455 kilograms) per year during any calendar year since January 1, 1987.

 (b)  A person may not cause or permit the emission into the outdoor atmosphere of VOCs from a surface coating process category listed in Table I, unless one of the following limitations is met:

   (1)  The VOC content of each as applied coating is equal to or less than the standard specified in Table I.

     (i)   The VOC content of the as applied coating, expressed in units of weight of VOC per volume of coating solids, shall be calculated as follows:

VOC = (W_o)(D_c)/V_n

   Where:

 VOC = VOC content in lb VOC/gal of coating solids

 W_o = Weight percent of VOC (W_v-W_w-W_ex)

 W_v = Weight percent of total volatiles (100%-weight percent solids)

 W_w = Weight percent of water

 W_ex = Weight percent of exempt solvent(s)

 D_c = Density of coating, lb/gal, at 25°C

 V_n = Volume percent of solids of the as applied coating

     (ii)   The VOC content of a dip coating, expressed in units of weight of VOC per volume of coating solids, shall be calculated on a 30-day rolling average basis using the following equation:

   Where:

 VOC_A = VOC content in lb VOC/gal of coating solids for a dip coating, calculated on a 30-day rolling average basis

   W_oi = Percent VOC by weight of each as supplied coating (i) added to the dip coating process, expressed as a decimal fraction (that is 55% = 0.55)

 D_ci = Density of each as supplied coating (i) added to the dip coating process, in pounds per gallon

 Q_i = Quantity of each as supplied coating (i) added to the dip coating process, in gallons

 V_ni = Percent solids by volume of each as supplied coating (i) added to the dip coating process, expressed as a decimal fraction

 W_oJ = Percent VOC by weight of each thinner (J) added to the dip coating process, expressed as a decimal fraction

 D_dJ = Density of each thinner (J) added to the dip coating process, in pounds per gallon

 Q_J = Quantity of each thinner (J) added to the dip coating process, in gallons

     (iii)   The VOC content of the as applied coating, expressed in units of weight of VOC per weight of coating solids, shall be calculated as follows:

VOC_B = (W_o)/(W_n)

   Where:

 VOC_B = VOC content in lb VOC/lb of coating solids

 W_o = Weight percent of VOC (W_v-W_w-W_ex)

 W_v = Weight percent of total volatiles (100%-weight percent solids)

 W_w = Weight percent of water

 W_ex = Weight percent of exempt solvents

 W_n = Weight percent of solids of the as applied coating

     (iv)   Sampling and testing shall be done in accordance with the procedures and test methods specified in Chapter 139 (relating to sampling and testing).

   (2)  The overall weight of VOCs emitted to the atmosphere is reduced through the use of vapor recovery or incineration or another method which is acceptable under §  129.51(a) (relating to general). The overall efficiency of a control system, as determined by the test methods and procedures specified in Chapter 139 shall be no less than the equivalent overall efficiency calculated by the following equation:

O = (1 - E/V) x 100

   Where:

 V = The VOC content of the as applied coating, in lb VOC/gal of coating solids or lb VOC/lb of coating solids.

 E = Table I limit in lb VOC/gal of coating solids or lb VOC/lb of coating solids.

 O = Overall control efficiency.

 (c)  A facility, regardless of the facility’s annual emission rate, which contains surface coating processes shall maintain records sufficient to demonstrate compliance with this section. At a minimum, a facility shall maintain daily records of:

   (1)  The following parameters for each coating, thinner and other component as supplied:

     (i)   The coating, thinner or component name and identification number.

     (ii)   The volume used.

     (iii)   The mix ratio.

     (iv)   The density or specific gravity.

     (v)   The weight percent of total volatiles, water, solids and exempt solvents.

     (vi)   The volume percent of solids for Table I surface coating process categories 1—10.

   (2)  The VOC content of each coating, thinner and other component as supplied.

   (3)  The VOC content of each as applied coating.

 (d)  The solvents methyl chloroform (1,1,1-trichloroethane) and methylene chloride are exempt from control under this section and §  129.67 (relating to graphic arts systems). A surface coating process which seeks to comply with this section through the use of an exempt solvent may not be included in any alternative standards.

 (e)  If more than one emission limitation under miscellaneous metal parts and products applies to a specific coating, the least stringent emission limitation applies.

 (f)  A person may not cause or permit the emission into the outdoor atmosphere of VOCs from the application of wood furniture coatings unless the coatings are applied using electrostatic, airless, curtain coating, roller coating, hand roller, hand brush, flow coating, dip coating or high volume-low pressure application equipment. Air atomized sprays may be used to apply cosmetic specialty coatings if the volume of the cosmetic specialty coatings is less than 5% by volume of the total coating used at the facility or to apply final repair coatings.

 (g)  The records shall be maintained for 2 years and shall be submitted to the Department on a schedule reasonably prescribed by the Department.

 (h)  The VOC standards in Table I do not apply to a coating used exclusively for determining product quality and commercial acceptance, touch-up and repair and other small quantity coatings if the coating meets the following criteria:

   (1)  The quantity of coating used does not exceed 50 gallons per year for a single coating and a total of 200 gallons per year for all coatings combined for the facility.

   (2)  The owner or operator of the facility requests, in writing, and the Department approves, in writing, the exemption prior to use of the coating.

Table I

Emission Limits of VOCs in Surface Coatings by Process Category

Weight of VOC per Volume of Coating Solids

Weight of VOC per Weight of Coating Solids

   The provisions of this §  129.52 issued under section 1920-A of The Administrative Code of 1929 (71 P. S. §  510-20); and section 5 of the Air Pollution Control Act (35 P. S. §  4005).

   The provisions of this §  129.52 adopted April 27, 1979, effective August 1, 1979, 9 Pa.B. 1447; corrected May 11, 1979, effective August 1, 1979, 9 Pa.B. 1534; amended September 26, 1980, effective September 27, 1980, 10 Pa.B. 3788; amended June 19, 1981, effective June 20, 1981, 11 Pa.B. 2118; amended May 6, 1988, effective May 7, 1988, 18 Pa.B. 2098; amended August 2, 1991, effective August 3, 1991, 21 Pa.B. 3406; amended May 22, 1992, effective May 23, 1992, 22 Pa. B. 2720; amended January 14, 1994, effective January 15, 1994, 24 Pa.B. 443; corrected May 12, 1995, effective May 7, 1994, 25 Pa.B. 1858; amended June 9, 2000, effective June 10, 2000, 30 Pa.B. 2995. Immediately preceding text appears at serial pages (254477) to (254478) and (261884).

 Where incineration equipment employing natural gas as the auxiliary fuel has been installed to effect compliance with the discharge limitation of §  129.52, § §  129.55—129.64 or § §  129.67—129.69, the Department may authorize the discontinuation of the operation of the equipment for the purpose of fuel conservation during the months of December, January and February if the operation of the equipment is not required for purposes of occupational health or safety or for the control of toxic substances or other regulated substances or for the prevention of odor nuisances. Authorization to discontinue operation of the incineration equipment may be made only after receipt of a written request from the owner or operator of an applicable facility. Authorization will be made in writing and may be similarly revoked by the Department if the revocation is found necessary for the attainment or maintenance of an air pollutant standard.

   The provisions of this §  129.54 amended under section 5 of the Air Pollution Control Act (35 P. S. §  4005).

   The provisions of this §  129.54 adopted April 27, 1979, effective August 1, 1979, 9 Pa.B. 1447; corrected May 11, 1979, effective August 1, 1979, 9 Pa.B. 1534; amended June 19, 1981, effective June 20, 1981, 11 Pa.B. 2118; amended August 2, 1991, effective August 3, 1991, 21 Pa.B. 3406. Immediately preceding text appears at serial page (151670).

 (a)  Wastewater separators. No person may permit the use of a compartment of a single or multiple compartment volatile organic compound wastewater separator which compartment receives effluent water containing 200 gallons a day or more of any volatile organic compound from equipment processing, refining, treating, storing or handling volatile organic compounds unless the compartment is equipped with one of the following vapor loss control devices—properly installed, in good working order, and in operation—as follows:

   (1)  A container having openings sealed and totally enclosing the liquid contents. Gauging and sampling devices shall be gas-tight except when gauging or sampling is taking place.

   (2)  A container equipped with a floating roof—consisting of a pontoon-type roof, double-deck-type roof or internal floating cover—which will rest on the surface of the contents and be equipped with a closure seal or seals to close the space between the roof edge and container wall. Gauging and sampling devices shall be gas-tight except when gauging or sampling is taking place.

 (b)  Pumps and compressors. Pumps and compressors handling volatile organic compounds with a vapor pressure of greater than 1.5 psi (10.3 kilopascals) at actual conditions shall have mechanical seals. For the purpose of determining vapor pressure, a temperature no greater than 100° F shall be used.

 (c)  Vacuum-producing systems. Vacuum producing systems shall conform with the following:

   (1)  The owner or operator of any vacuum-producing systems at a petroleum refinery may not permit the emission of volatile organic compounds from the condensers, hot wells or accumulators of the system.

   (2)  The emission limit under paragraph (1) shall be achieved by one of the following:

     (i)   Piping the vapors to a firebox or incinerator.

     (ii)   Compressing the vapors and adding them to the refinery fuel gas.

     (iii)   A method approved by the Department which recovers no less than 90% by weight of uncontrolled volatile organic compounds that would otherwise be emitted to the atmosphere.

 (d)  Process unit turnarounds. Purging of volatile organic compounds during depressurization of reactors, fractionating columns, pipes or vessels during unit shutdown, repair, inspection or startup shall be performed in such a manner as to direct the volatile organic vapors to a fuel gas system, flare or vapor recovery system until the internal pressure in such equipment reaches 19.7 psia (136 kilopascals).

   The provisions of this §  129.55 adopted April 27, 1979, effective August 1, 1979, 9 Pa.B. 1447; corrected May 11, 1979, effective August 1, 1979, 9 Pa.B. 1534; amended June 19, 1981, effective June 20, 1981, 11 Pa.B. 2118. Immediately preceding text appears at serial page (53973).

 (a)  No person may permit the placing, storing or holding in a stationary tank, reservoir or other container with a capacity greater than 40,000 gallons of volatile organic compounds with a vapor pressure greater than 1.5 psia (10.5 kilopascals) under actual storage conditions unless the tank, reservoir or other container is a pressure tank capable of maintaining working pressures sufficient at all times to prevent vapor or gas loss to the atmosphere or is designed and equipped with one of the following vapor loss control devices:

   (1)  An external or an internal floating roof. This control equipment may not be permitted if the volatile organic compounds have a vapor pressure of 11 psia (76 kilopascals) or greater under actual storage conditions.

   (2)  Vapor recovery system. A vapor recovery system, consisting of a vapor gathering system capable of collecting the volatile organic compound vapors and gases discharged and a vapor disposal system capable of processing such volatile organic vapors and gases so as to prevent their emission to the atmosphere. Tank gauging and sampling devices shall be gas-tight except when gauging or sampling is taking place. The vapor recovery system shall be maintained in good working order and recover at least 80% of the vapors emitted by such tank.

 (b)  An external floating roof shall be fitted with a primary seal and a continuous secondary seal extending from the floating roof to the tank wall (rim-mounted secondary seal). The external floating roof shall meet the following equipment requirements:

   (1)  Seal closure devices shall meet the following requirements:

     (i)   There are no visible holes, tears or other openings in the seals or seal fabric.

     (ii)   The seals are intact and uniformly in place around the circumference of the floating roof between the floating roof and the tank wall.

     (iii)   For tanks with vapor-mounted primary seals, the accumulated area of gaps exceeding 1/8 inch in width between the secondary seal and the tank wall shall not exceed 1 square inch per foot of tank diameter. Compliance with this subsection shall be determined by physically measuring the length and width of gaps around the entire circumference of the secondary seal in each place where a 1/8 inch uniform diameter probe passes freely (without forcing or binding against the seal) between the seal and tank wall and by summing the area of the individual gaps.

   (2)  Openings in the external floating roof, except for automatic bleeder vents, rim space vents and leg sleeves, are as follows:

     (i)   Equipped with covers, seals or lids in the closed position except when the openings are in actual use.

     (ii)   Equipped with projections into the tank which remain below the liquid surface at all times.

   (3)  Automatic bleeder vents are closed at all times except when the roof is floated off or landed on the roof leg supports.

   (4)  Rim vents are set to open when the roof is being floated off the leg supports or at the recommended setting of the manufacturer.

   (5)  Emergency roof drains are provided with slotted membrane fabric covers or equivalent covers which cover at least 90% of the area of the opening.

 (c)  An internal floating roof shall be fitted with a primary seal and shall comply with the following equipment requirements:

   (1)  A closure seal or seals, to close the space between the roof edge and tank wall is used.

   (2)  There are no holes, tears or other openings in the seal or a seal fabric or materials.

   (3)  Openings except stub drains are equipped with covers, lids or seals such that:

     (i)   The cover, lid or seal is in the closed position at all times except when in actual use.

     (ii)   Automatic bleeder vents are closed at all times except when the roof is floated off or landed on the roof leg supports.

     (iii)   Rim vents, if provided are set to open when the roof is being floated off the roof leg supports or at the recommended setting of the manufacturer.

 (d)  This section does not apply to petroleum liquid storage vessels which:

   (1)  Are used to store waxy, heavy pour crude oil.

   (2)  Have capacities less than 420,000 gallons and are used to store produced crude oil and condensate prior to lease custody transfer.

 (e)  For the purposes of this section, the petroleum liquid storage vessels listed in this subsection comply with the equipment requirements of this section. These tanks shall comply with the maintenance, inspection and reporting requirements of this section. These petroleum liquid storage vessels are those:

   (1)  Which contain a petroleum liquid with a true vapor pressure less than 4 psia (27.6 kilopascals) and which are of welded construction and which presently possess a metallic-type shoe seal, a liquid-mounted foam seal, a liquid-mounted liquid filled type seal or other closure device of demonstrated equivalence approved by the Department.

   (2)  Which are of welded construction, equipped with a metallic-type shoe primary seal and has a secondary seal from the top of the shoe seal to the tank wall (shoe-mounted secondary seal).

 (f)  The owner or operator of a petroleum liquid storage vessel with a floating roof subject to this regulation shall:

   (1)  Perform routine inspections annually in order to insure compliance with subsection (b) or (c). The inspection shall include a visual inspection of the secondary seal gap when inspecting external floating roof tanks.

   (2)  For external floating roof tanks, measure the secondary seal gap annually in accordance with subsection (b)(1)(iii) when the floating roof is equipped with a vapor-mounted primary seal.

   (3)  Maintain records of the types of volatile petroleum liquids stored, the maximum true vapor pressure of the liquid as stored, and the results of the inspections performed in subsection (f)(1) and (2). Copies of the records shall be retained by the owner or operator for a period of 2 years after the date on which the record was made and shall be made available to the Department upon written or verbal request at a reasonable time.

 (g)  For volatile organic compounds whose storage temperature is governed by ambient weather conditions, the vapor pressure under actual storage conditions shall be determined using a temperature which is representative of the average storage temperature for the hottest month of the year in which the storage takes place.

 (h)  If a failure is detected during inspections required in this section, the owner or operator, or both, shall repair the items or empty and remove the storage vessel from service within 45 days. If this failure cannot be repaired within 45 days and if the vessel cannot be emptied within 45 days, a 30-day extension may be requested from the Department. A request for an extension shall document that alternate storage capacity is unavailable and specify a schedule of actions the owner or operator will take that will assure that the equipment will be repaired or the vessel will be emptied as soon as possible but within the additional 30-day time requested.

   The provisions of this §  129.56 issued under section 1920-A of The Administrative Code of 1929 (71 P. S. §  510-20); and section 5 of the Air Pollution Control Act (35 P. S. §  4005).

   The provisions of this §  129.56 adopted April 27, 1979, effective August 1, 1979, 9 Pa.B. 1447; corrected May 11, 1979, effective August 1, 1979, 9 Pa.B. 1534; amended September 26, 1980, effective September 27, 1980, 10 Pa.B. 3788; amended June 19, 1981, effective June 20, 1981, 11 Pa.B. 2118; amended August 12, 1983, effective August 13, 1983, 13 Pa.B. 2478; amended September 4, 1998, effective September 5, 1998, 28 Pa.B. 4525. Immediately preceding text appears at serial pages (199522) to (199524).

 The provisions of this section apply to above ground stationary storage tanks with a capacity equal to or greater than 2,000 gallons which contain volatile organic compounds with vapor pressure greater than 1.5 psia (10.5 kilopascals) under actual storage conditions. Storage tanks covered under this section shall have pressure relief valves which are maintained in good operating condition and which are set to release at no less than .7 psig (4.8 kilopascals) of pressure or .3 psig (2.1 kilopascals) of vacuum or the highest possible pressure and vacuum in accordance with state or local fire codes or the National Fire Prevention Association guidelines or other national consensus standards acceptable to the Department. Section 129.56(g) (relating to storage tanks greater than 40,000 gallons capacity containing VOCs) applies to this section. Petroleum liquid storage vessels which are used to store produced crude oil and condensate prior to lease custody transfer shall be exempt from the requirements of this section.

   The provisions of this §  129.57 issued under section 1920-A of The Administrative Code of 1929 (71 P. S. §  510-20); and section 5 of the Air Pollution Control Act (35 P. S. §  4005).

   The provisions of this §  129.57 adopted April 27, 1979, effective August 1, 1979, 9 Pa.B. 1447; corrected May 11, 1979, effective August 1, 1979, 9 Pa.B. 1534; amended September 26, 1980, effective September 27, 1980, 10 Pa.B. 3788; amended June 19, 1981, effective June 20, 1981, 11 Pa.B. 2118. Immediately preceding text appears at serial pages (53975) to (53976).

 (a)  The owner or operator of a petroleum refinery shall do the following:

   (1)  Develop and conduct a monitoring program consistent with the provisions of subsection (d).

   (2)  Record leaking refinery components which have a VOC concentration exceeding 10,000 ppm when tested in accordance with the provisions of §  139.14 (relating to emissions of VOCs) and place an identifying tag on each refinery component consistent with the provisions in subsection (d)(3).

   (3)  Repair and retest the leaking refinery components as soon as possible. Every reasonable effort shall be made to repair each leak within 15 days unless a refinery unit shutdown is required to make the necessary repair.

   (4)  Identify leaking refinery components which cannot be repaired until the unit is shutdown for turnaround.

 (b)  Except for safety pressure relief valves and fittings on valves 1 inch or smaller, no owner or operator of a petroleum refinery shall install or operate a valve at the end of a pipe or line containing VOCs unless the pipe or line is sealed with a second valve, a blind flange, a plug or a cap. The sealing device may be removed only when a sample is being taken or during maintenance operations.

 (c)  Pipeline valves and pressure relief valves in gaseous VOC service shall be marked in some manner that will be readily obvious to both refinery personnel performing monitoring and the Department.

 (d)  Monitoring shall be done as follows:

   (1)  The owner or operator of a petroleum refinery shall conduct a monitoring program consistent with the following requirements:

     (i)   Check yearly, by methods referenced in §  139.14, pump seals and pipeline valves in liquid service.

     (ii)   Check quarterly, by methods referenced in §  139.14, compressor seals, pipeline valves in gaseous service, and pressure relief valves in gaseous service.

     (iii)   Check monthly, by visual methods, pump seals.

     (iv)   Check within 24 hours, by methods referenced in §  139.14, a pump seal from which VOC liquids are observed to be dripping.

     (v)   Check, by methods referenced in §  139.14, a relief valve within 24 hours after it has vented to the atmosphere.

     (vi)   Check within 72 hours after repair, by methods referenced in §  139.14, a refinery component that was found leaking.

   (2)  Pressure relief devices which are connected to an operating flare header, vapor recovery devices, inaccessible valves, storage tank valves and valves that are not externally regulated are exempt from the monitoring requirements in paragraph (1).

   (3)  The owner or operator of a petroleum refinery, upon the detection of a leaking refinery component, shall affix a weatherproof and readily visible tag, bearing an identification number and the date upon which the leak is located to the leaking refinery component. This tag shall remain in place until the leaking refinery component is repaired.

 (e)  Record keeping shall comply with the following:

   (1)  The owner or operator of a petroleum refinery shall maintain a leaking refinery components’ monitoring log which shall contain, at a minimum, the following data:

     (i)   The name of the process unit where the refinery component is located.

     (ii)   The type of refinery component—for example, valve, seal.

     (iii)   The tag number of refinery component.

     (iv)   The dates on which the leaking refinery component was discovered and repaired.

     (v)   The date and instrument reading of the recheck procedure after a leaking refinery component was repaired.

     (vi)   A record of the calibration of the monitoring instrument.

     (vii)   Those leaks that cannot be repaired until turnaround.

     (viii)   The total number of refinery components checked and the total number of refinery components found leaking.

   (2)  Copies of the monitoring log shall be retained by the owner for 2 years after the date on which the record was made or the report was prepared.

   (3)  Copies of the monitoring log shall immediately be made available to the Department, upon verbal or written request, at any reasonable time.

 (f)  Reporting shall comply with the following:

   (1)  The owner or operator of a petroleum refinery, upon completion of each yearly and quarterly monitoring procedure, shall do the following:

     (i)   Submit a report to the Department by the last business day of January, April, July and October that lists leaking refinery components that were located during the previous calendar quarter but not repaired within 15 days, leaking refinery components awaiting unit turnaround, the total number of refinery components inspected and the total number of refinery components found leaking.

     (ii)   Submit a signed statement with the report attesting to the fact that, with the exception of those leaking refinery components listed in subparagraph (i), monitoring and repairs were performed as stipulated in the monitoring program.

 (g)  The owner or operator of a petroleum refinery may submit an alternative plan for the control of leaks from petroleum refinery equipment to the Department. If the Department finds that the alternative plan will achieve an emission reduction which is equivalent to or greater than the reduction which can be achieved under the provisions of this section and that the alternative plan is as enforceable as this section, then the Department will allow the implementation of this alternative plan.

 (h)  The owner or operator of a petroleum refinery may submit to the Department a list of refinery components the inspection of which would involve a significant element of danger. The Department may exempt the refinery components on this list from the requirements of this section if the owner or operator can demonstrate to the satisfaction of the Department that a significant element of danger exists which cannot be reasonably eliminated and that these exemptions will not result in a significant reduction in the effectiveness in the control of VOC emissions.

   The provisions of this §  129.58 issued under the Air Pollution Control Act (35 P. S. § §  4001—4015).

   The provisions of this §  129.58 adopted April 27, 1979, effective August 1, 1979, 9 Pa.B. 1447; corrected May 11, 1979, effective August 1, 1979, 9 Pa.B. 1534; amended August 12, 1983, effective August 13, 1983, 13 Pa.B. 2478. Immediately preceding text appears at serial pages (62507) to (62510).

 (a)  A person may not cause or permit the loading of gasoline into a vehicular tank from a bulk gasoline terminal unless the gasoline loading racks are equipped with a vapor collection and disposal system capable of processing volatile organic vapors and gases so that no more than 0.0668 pounds (30.3 grams) of gasoline (measured as propane) are emitted to the atmosphere for every 100 gallons (380 liters) of gasoline loaded.

 (b)  A person may not cause or permit the loading of gasoline into a vehicular tank from a bulk gasoline terminal unless the gasoline loading racks are equipped with a loading arm with a vapor collection adaptor and pneumatic, hydraulic or other mechanical means to force a vapor-tight seal between the adaptor and the hatch of the tank. A means shall be provided to prevent gasoline drainage from the loading device when it is not connected to the hatch, and to accomplish complete drainage before the removal. When loading is effected through means other than hatches, loading and vapor lines shall be equipped with fittings which make vapor-tight connections and which will be closed upon disconnection.

 (c)  An owner or operator of a bulk gasoline plant shall maintain records of daily throughput. These records shall be retained for at least 2 years and shall be made available to the Department on request.

   The provisions of this §  129.59 amended under section 5 of the Air Pollution Control Act (35 P. S. §  4005).

   The provisions of this §  129.59 adopted April 27, 1979, effective August 1, 1979, 9 Pa.B. 1447; corrected May 11, 1979, effective August 1, 1979, 9 Pa.B. 1534; amended August 12, 1983, effective August 13, 1983, 13 Pa.B. 2478; amended August 2, 1991, effective August 3, 1991, 21 Pa.B. 3406. Immediately preceding text appears at serial pages (151678) to (151679).

 (a)  A person may not cause or permit the loading of gasoline into a vehicular receiving tank from a bulk gasoline plant unless the loading is:

   (1)  Bottom filled with the inlet flush with the receiving vehicular tank bottom.

   (2)  Top-submerged filled with the fill pipe extended to within 6 inches of the bottom of the receiving vehicular tank during top-submerged filling operations.

 (b)  A person may not cause or permit the loading of gasoline into the stationary tanks of a bulk gasoline plant from a tank truck delivering gasoline to the bulk gasoline plant unless a vapor balancing technique is employed. The displaced vapors from the storage tank shall be transferred to the dispensing delivery tank during loading operations, and these vapors shall be processed for disposal in accordance with §  129.59 (relating to bulk gasoline terminals). This subsection is not applicable to storage tanks which conform to §  129.56(a)(1) or (2) (relating to storage tanks greater than 40,000 gallons capacity containing VOCs).

 (c)  A person may not cause or permit the loading of gasoline from a bulk gasoline plant with a daily throughput since January 1, 1987 of greater than 4,000 gallons (15,200 liters) into a tank truck with a capacity greater than 250 gallons (950 liters) unless a vapor balance system is employed. The displaced vapors from the tank truck shall be transferred to the stationary tanks of the bulk gasoline plant during loading operations. A storage tank at a bulk gasoline plant which is controlled under §  129.56(a)(1) or (2) shall have a vapor recovery unit and process vapors from gasoline loading in accordance with §  129.59.

 (d)  An owner or operator of a bulk gasoline plant shall maintain records of daily throughput. These records shall be retained for at least 2 years and shall be made available to the Department on request.

   The provisions of this §  129.60 issued under section 1920-A of The Administrative Code of 1929 (71 P. S. §  510-20); and section 5 of the Air Pollution Control Act (35 P. S. §  4005).

   The provisions of this §  129.60 adopted April 27, 1979, effective August 1, 1979, 9 Pa.B. 1447; corrected May 11, 1979, effective August 1, 1979, 9 Pa.B. 1534; amended September 26, 1980, effective September 27, 1980, 10 Pa.B. 3788; amended June 19, 1981, effective June 20, 1981, 11 Pa.B. 2118; amended August 2, 1991, effective August 3, 1991, 21 Pa.B. 3406. Immediately preceding text appears at serial pages (151679) to (151680).

 (a)  This section applies Statewide to stationary gasoline storage tanks with a capacity of greater than 2,000 gallons.

 (b)  A person may not transfer gasoline from a delivery vessel into a stationary gasoline storage tank unless the displaced vapors from the storage tank are transferred to the dispensing delivery tank through a vapor right return line and unless the receiving tank is equipped with a submerged fill pipe which extends from the filling orifice to within 6 inches of the bottom of the tank. The vapors collected in the dispensing tank shall be disposed of in accordance with §  129.59 or §  129.60(c) (relating to bulk gasoline terminals; and bulk gasoline plants).

 (c)  The dispensing delivery tank shall remain vapor tight at all times. The delivery tank may be opened after the vapors are disposed of in accordance with §  129.59 or §  129.60(c).

   The provisions of this §  129.61 issued under section 1920-A of The Administrative Code of 1929 (71 P. S. §  510-20); and section 5 of the Air Pollution Control Act (35 P. S. §  4005).

   The provisions of this §  129.61 adopted April 27, 1979, effective August 1, 1979, 9 Pa.B. 1447; corrected May 11, 1979, effective August 1, 1979, 9 Pa.B. 1534; amended September 26, 1980, effective September 27, 1980, 10 Pa.B. 3788; amended August 2, 1991, effective August 3, 1991, 21 Pa.B. 3406; amended September 15, 1995, effective September 16, 1995, 25 Pa.B. 3849. Immediately preceding text appears at serial pages (186055) to (186056).

 (a)  Gasoline may not be spilled or discarded in sewers or stored in open containers or handled in a manner that would result in uncontrolled evaporation to the atmosphere.

 (b)  An owner or operator of a bulk gasoline plant, bulk gasoline terminal, tank truck or trailer or stationary storage tank to which §  129.59, §  129.60(b) or (c) or §  129.61 (relating to bulk gasoline terminals; bulk gasoline plants; and small gasoline storage tank control (Stage I control)) apply may not permit the transfer of gasoline between the tank truck or trailer and a stationary storage tank unless the following conditions are met:

   (1)  The vapor balance system is in good working order and is designed and operated in a manner that prevents:

     (i)   Gauge pressure from exceeding 18 inches of H₂O (4500 pascals) and vacuum from exceeding 6 inches of water (1500 pascals) in the gasoline tank truck.

     (ii)   A reading equal to or greater than 100% of the lower explosive limit—LEL, measured as propane—at 1 inch from points on the perimeter of a potential leak source when measured by the method referenced in §  139.14 (relating to emissions of VOCs) during loading or unloading operations at small gasoline storage tanks, bulk plants and bulk terminals.

     (iii)   Avoidable liquid leaks during loading or unloading operations at small gasoline storage tanks, bulk plants and bulk terminals.

   (2)  A truck, vapor balance system or vapor disposal system, if applicable, that exceeds the limits in paragraph (1) is repaired and retested within 15 days.

   (3)  There are no visually- or audibly-detectable leaks in the tank truck’s or trailer’s pressure/vacuum relief valves and hatch covers, the truck tanks or storage tanks, or associated vapor and liquid lines during loading or unloading.

   (4)  The pressure and vacuum relief valves on storage vessels and tank trucks or trailers are set to release at no less than .7 psig (4.8 kilopascals) of pressure or .3 psig (2.1 kilopascals) of vacuum or the highest allowable pressure and vacuum as specified in State or local fire codes, the National Fire Prevention Association guidelines or other National consensus standards acceptable to the Department. Upon demonstration by the owner or operator of an underground small gasoline storage tank that the vapor balance system specified in paragraph (1) will achieve a 90% vapor recovery efficiency without a pressure and vacuum relief valve and that an interlock system, sufficient to ensure connection of the vapor recovery line prior to delivery of the gasoline, will be used—no pressure and vacuum relief valve is required. The vacuum setting on the pressure and vacuum relief valve on an underground storage tank may be set at the lowest vacuum setting which is sufficient to keep the vent closed at zero pressure and vacuum.

 (c)  A person may not allow a gasoline tank truck subject to §  129.59, §  129.60 or §  129.61 to be filled or emptied in a geographic area specified in §  129.61(a) unless the gasoline tank truck:

   (1)  Has been tested by the owner or operator within the immediately preceding 12 months in accordance with §  139.14.

   (2)  Sustains a pressure change of no more than 750 pascals (3 inches of H₂O) in 5 minutes when pressurized to a gauge pressure of 18 inches of H₂O (4,500 pascals) or evacuated to a gauge pressure of 6 inches of H₂O (1,500 pascals) during the testing required in paragraph (1).

   (3)  Is repaired by the owner or operator and retested within 15 days of testing if it does not meet the criteria in paragraph (2).

   (4)  Displays a clear marking near the Department of Transportation Certification plate required by 49 CFR 178.340-10b (relating to certification), which shows the most recent date upon which the gasoline tank truck passed the test required in this subsection.

 (d)  Reporting and recordkeeping shall be as follows:

   (1)  The owner or operator of a source of VOCs subject to subsection (c) shall maintain records of certification testing and repairs. The records shall identify the gasoline tank truck, vapor collection system or vapor control system; the date of the test or repair; and, if applicable, the type of repair and the date of retest. The records shall be maintained in a legible, readily-available condition for 1 year after the date the testing or repair was completed.

   (2)  The records of certification tests required by paragraph (1) shall contain:

     (i)   The gasoline tank truck tank serial number.

     (ii)   The initial test pressure and the time of the reading.

     (iii)   The final test pressure and the time of the reading.

     (iv)   The initial test vacuum and the time of the reading.

     (v)   The final test vacuum and the time of the reading.

     (vi)   At the top of each report page, the company name and the date and location of the tests on that page.

     (vii)   The name and title of the person conducting the test.

   (3)  Copies of records and reports under this subsection shall be made available to the Department upon verbal or written request at any reasonable time. A copy of the test results for each gasoline tank shall be kept with the truck.

 (e)  Gasoline tank trucks with a rated capacity of less than 4,800 gallons are exempt from subsections (c) and (d).

   The provisions of this §  129.62 issued under section 1920-A of The Administrative Code of 1929 (71 P. S. §  510-20); and section 5 of the Air Pollution Control Act (35 P. S. §  4005).

   The provisions of this §  129.62 adopted April 27, 1979, effective August 1, 1979, 9 Pa.B. 1447; corrected May 11, 1979, effective August 1, 1979, 9 Pa.B. 1534; amended September 26, 1980, effective September 27, 1980, 10 Pa.B. 3788; amended June 19, 1981, effective June 20, 1981, 11 Pa.B. 2118; corrected July 17, 1981, effective June 21, 1981, 11 Pa.B. 2570; amended August 12, 1983, effective August 13, 1983, 13 Pa.B. 2478; amended May 22, 1992, effective May 23, 1992, 22 Pa. B. 2720. Immediately preceding text appears at serial pages (159208) to (159210).

 (a)  Cold cleaning machines. Except for those subject to the Federal National emissions standards for hazardous air pollutants (NESHAP) for halogenated solvent cleaners under 40 CFR Part 63 (relating to National emission standards for hazardous air pollutants for source categories), this subsection applies to cold cleaning machines that use 2 gallons or more of solvents containing greater than 5% VOC content by weight for the cleaning of metal parts.

   (1)  Immersion cold cleaning machines shall have a freeboard ratio of 0.50 or greater.

   (2)  Immersion cold cleaning machines and remote reservoir cold cleaning machines shall:

     (i)   Have a permanent, conspicuous label summarizing the operating requirements in paragraph (3). In addition, the label shall include the following discretionary good operating practices:

       (A)   Cleaned parts should be drained at least 15 seconds or until dripping ceases, whichever is longer. Parts having cavities or blind holes shall be tipped or rotated while the part is draining. During the draining, tipping or rotating, the parts should be positioned so that solvent drains directly back to the cold cleaning machine.

       (B)   When a pump-agitated solvent bath is used, the agitator should be operated to produce a rolling motion of the solvent with no observable splashing of the solvent against the tank walls or the parts being cleaned.

       (C)   Work area fans should be located and positioned so that they do not blow across the opening of the degreaser unit.

     (ii)   Be equipped with a cover that shall be closed at all times except during cleaning of parts or the addition or removal of solvent. For remote reservoir cold cleaning machines which drain directly into the solvent storage reservoir, a perforated drain with a diameter of not more than 6 inches shall constitute an acceptable cover.

   (3)  Cold cleaning machines shall be operated in accordance with the following procedures:

     (i)   Waste solvent shall be collected and stored in closed containers. The closed containers may contain a device that allows pressure relief, but does not allow liquid solvent to drain from the container.

     (ii)   Flushing of parts using a flexible hose or other flushing device shall be performed only within the cold cleaning machine. The solvent spray shall be a solid fluid stream, not an atomized or shower spray.

     (iii)   Sponges, fabric, wood, leather, paper products and other absorbent materials may not be cleaned in the cold cleaning machine.

     (iv)   Air agitated solvent baths may not be used.

     (v)   Spills during solvent transfer and use of the cold cleaning machine shall be cleaned up immediately.

   (4)  After December 22, 2002, a person may not use, sell or offer for sale for use in a cold cleaning machine any solvent with a vapor pressure of 1.0 millimeter of mercury (mm Hg) or greater and containing greater than 5% VOC by weight, measured at 20°C (68°F) containing VOCs.

   (5)  On and after December 22, 2002, a person who sells or offers for sale any solvent containing VOCs for use in a cold cleaning machine shall provide, to the purchaser, the following written information:

     (i)   The name and address of the solvent supplier.

     (ii)   The type of solvent including the product or vendor identification number.

     (iii)   The vapor pressure of the solvent measured in mm hg at 20°C (68°F).

   (6)  A person who operates a cold cleaning machine shall maintain for at least 2 years and shall provide to the Department, on request, the information specified in paragraph (5). An invoice, bill of sale, certificate that corresponds to a number of sales, Material Safety Data Sheet (MSDS), or other appropriate documentation acceptable to the Department may be used to comply with this section.

   (7)  Paragraph (4) does not apply:

     (i)   To cold cleaning machines used in extreme cleaning service.

     (ii)   If the owner or operator of the cold cleaning machine demonstrates, and the Department approves in writing, that compliance with paragraph (4) will result in unsafe operating conditions.

     (iii)   To immersion cold cleaning machines with a freeboard ratio equal to or greater than 0.75.

 (b)  Batch vapor cleaning machines. Except for those subject to the Federal NESHAP for halogenated solvent cleaners under 40 CFR Part 63, this subsection applies to batch vapor cleaning machines that use solvent containing greater than 5% VOC by weight for the cleaning of metal parts.

   (1)  Batch vapor cleaning machines shall be equipped with:

     (i)   Either a fully enclosed design or a working and downtime mode cover that completely covers the cleaning machine openings when in place, is free of cracks, holes and other defects, and can be readily opened or closed without disturbing the vapor zone. If the solvent cleaning machine opening is greater than 10 square feet, the cover shall be powered. If a lip exhaust is used, the closed cover shall be below the level of the lip exhaust.

     (ii)   Sides which result in a freeboard ratio greater than or equal to 0.75.

     (iii)   A safety switch (thermostat and condenser flow switch) which shuts off the sump heat if the coolant is not circulating.

     (iv)   A vapor up control switch which shuts off the spray pump if vapor is not present. A vapor up control switch is not required if the vapor cleaning machine is not equipped with a spray pump.

     (v)   An automated parts handling system which moves the parts or parts baskets at a speed of 11 feet (3.4 meters) per minute or less when the parts or parts are entering or exiting the vapor zone. If the parts basket being cleaned occupy more than 50% of the solvent/air interface area, the speed of the parts or parts basket may not exceed 3 feet per minute.

     (vi)   A device that shuts off the sump heat if the sump liquid solvent level drops to the sump heater coils.

     (vii)   A vapor level control device that shuts off the sump heat if the vapor level in the vapor cleaning machine rises above the height of the primary condenser.

     (viii)   A permanent, conspicuous label summarizing the operating requirements in paragraph (4).

   (2)  In addition to the requirements of paragraph (1), the operator of a batch vapor cleaning machine with a solvent/air interface area of 13 square feet or less shall implement one of the following options:

     (i)   A working mode cover, freeboard ratio of 1.0, and superheated vapor.

     (ii)   A freeboard refrigeration device and superheated vapor.

     (iii)   A working mode cover and a freeboard refrigeration device.

     (iv)   Reduced room draft, freeboard ratio of 1.0 and superheated vapor.

     (v)   A freeboard refrigeration device and reduced room draft.

     (vi)   A freeboard refrigeration device and a freeboard ratio of 1.0.

     (vii)   A freeboard refrigeration device and dwell.

     (viii)   Reduced room draft, dwell and a freeboard ratio of 1.0.

     (ix)   A freeboard refrigeration device and a carbon adsorber which reduces solvent emissions in the exhaust to a level not to exceed 100 ppm at any time.

     (x)   A freeboard ratio of 1.0, superheated vapor and a carbon adsorber.

   (3)  In addition to the requirements of paragraph (1), the operator of a batch vapor cleaning machine with a solvent/air interface area of greater than 13 square feet shall use one of the following devices or strategies:

     (i)   A freeboard refrigeration device, a freeboard ratio of 1.0 and superheated vapor.

     (ii)   Dwell, a freeboard refrigeration device and reduced room draft.

     (iii)   A working mode cover, a freeboard refrigeration device and superheated vapor.

     (iv)   Reduced room draft, freeboard ratio of 1.0 and superheated vapor.

     (v)   A freeboard refrigeration device, reduced room draft and superheated vapor.

     (vi)   A freeboard refrigeration device, reduced room draft and a freeboard ratio of 1.0.

     (vii)   A freeboard refrigeration device, superheated vapor and a carbon adsorber which reduces solvent emissions in the exhaust to a level not to exceed 100 ppm at any time.

   (4)  Batch vapor cleaning machines shall be operated in accordance with the following procedures:

     (i)   Waste solvent, still bottoms and sump bottoms shall be collected and stored in closed containers. The closed containers may contain a device that allows pressure relief, but does not allow liquid solvent to drain from the container.

     (ii)   Cleaned parts shall be drained at least 15 seconds or until dripping ceases, whichever is longer. Parts having cavities or blind holes shall be tipped or rotated while the part is draining. A superheated vapor system shall be an acceptable alternate technology.

     (iii)   Parts or parts baskets may not be removed from the batch vapor cleaning machine until dripping has ceased.

     (iv)   Flushing or spraying of parts using a flexible hose or other flushing device shall be performed within the vapor zone of the batch vapor cleaning machine or within a section of the machine that is not exposed to the ambient air. The solvent spray shall be a solid fluid stream, not an atomized or shower spray.

     (v)   Sponges, fabric, wood, leather, paper products and other absorbent materials may not be cleaned in the batch vapor cleaning machine.

     (vi)   Spills during solvent transfer and use of the batch vapor cleaning machine shall be cleaned up immediately.

     (vii)   Work area fans shall be located and positioned so that they do not blow across the opening of the batch vapor cleaning machine.

     (viii)   During startup of the batch vapor cleaning machine, the primary condenser shall be turned on before the sump heater.

     (ix)   During shutdown of the batch vapor cleaning machine, the sump heater shall be turned off and the solvent vapor layer allowed to collapse before the primary condenser is turned off.

     (x)   When solvent is added to or drained from the batch vapor cleaning machine, the solvent shall be transferred using threaded or other leakproof couplings and the end of the pipe in the solvent sump shall be located beneath the liquid solvent surface.

     (xi)   The working and downtime covers shall be closed at all times except during parts entry and exit from the machine, during maintenance of the machine when the solvent has been removed and during addition of solvent to the machine.

 (c)  In-line vapor cleaning machines. Except for those subject to the Federal NESHAP for halogenated solvent cleaners under 40 CFR Part 63, this section applies to in-line vapor cleaning machines that use solvent containing greater than 5% VOC by weight for the cleaning of metal parts.

   (1)  In-line vapor cleaning machines shall be equipped with:

     (i)   Either a fully enclosed design or a working and downtime mode cover that completely covers the cleaning machine openings when in place, is free of cracks, holesand other defects, and can be readily opened or closed without disturbing the vapor zone.

     (ii)   A switch (thermostat and condenser flow switch) which shuts off the sump heat if the coolant is not circulating.

     (iii)   Sides which result in a freeboard ratio greater than or equal to 0.75.

     (iv)   A vapor up control switch.

     (v)   An automated parts handling system which moves the parts or parts baskets at a speed of 11 feet (3.4 meters) per minute or less when the parts are entering or exiting the vapor zone. If the parts or parts basket being cleaned occupy more than 50% of the solvent/air interface area, the speed of the parts or parts basket may not exceed 3 feet per minute.

     (vi)   A device that shuts off the sump heat if the sump liquid solvent level drops to the sump heater coils.

     (vii)   A vapor level control device that shuts off the sump heat if the vapor level in the vapor cleaning machine rises above the height of the primary condenser.

     (viii)   A permanent, conspicuous label summarizing the operating requirements in paragraph (3).

   (2)  In addition to the requirements of paragraph (1), the operator of an in-line vapor cleaning machine shall use one of the following devices or strategies:

     (i)   A freeboard ratio of 1.0 and superheated vapor.

     (ii)   A freeboard refrigeration device and a freeboard ratio of 1.0.

     (iii)   Dwell and a freeboard refrigeration device.

     (iv)   Dwell and a carbon adsorber which reduces solvent emissions in the exhaust to a level not to exceed 100 ppm at any time.

   (3)  In-line vapor cleaning machines shall be operated in accordance with the following procedures:

     (i)   Waste solvent, still bottoms and sump bottoms shall be collected and stored in closed containers. The closed containers may contain a device that allows pressure relief, but does not allow liquid solvent to drain from the container.

     (ii)   Parts shall be oriented so that the solvent drains freely from the parts. Cleaned parts shall be drained at least 15 seconds or until dripping ceases, whichever is longer. Parts having cavities or blind holes shall be tipped or rotated while the part is draining.

     (iii)   Parts or parts baskets may not be removed from the in-line vapor cleaning machine until dripping has ceased.

     (iv)   Flushing or spraying of parts using a flexible hose or other flushing device shall be performed within the vapor zone of the in-line vapor cleaning machine or within a section of the machine that is not exposed to the ambient air. The solvent spray shall be a solid fluid stream, not an atomized or shower spray.

     (v)   Sponges, fabric, wood, leather, paper products and other absorbent materials may not be cleaned in the in-line vapor cleaning machine.

     (vi)   Spills during solvent transfer and use of the in-line vapor cleaning machine shall be cleaned up immediately.

     (vii)   Work area fans shall be located and positioned so that they do not blow across the in-line vapor cleaning machine.

     (viii)   During startup of the in-line vapor cleaning machine, the primary condenser shall be turned on before the sump heater.

     (ix)   During shutdown of the in-line vapor cleaning machine, the sump heater shall be turned off and the solvent vapor layer allowed to collapse before the primary condenser is turned off.

     (x)   Spraying operations shall be done in the vapor zone or within a section of the machine that is not exposed to the ambient air.

     (xi)   When solvent is added to or drained from the in-line vapor cleaning machine, the solvent shall be transferred using threaded or other leakproof couplings and the end of the pipe in the solvent sump shall be located beneath the liquid solvent surface.

 (d)  Airless cleaning machines and airtight cleaning machines. Except for those subject to the Federal NESHAP for halogenated solvent cleaners under 40 CFR Part 63, this section applies to airless cleaning machines and airtight cleaning machines that use solvent containing greater than 5% VOC by weight for the cleaning of metal parts.

   (1)  The operator of each machine shall maintain a log of solvent additions and deletions for each machine including the weight of solvent contained in activated carbon or other sorbent material used to control emissions from the cleaning machine.

   (2)  The operator of each machine shall demonstrate that the emissions from each machine, on a 3-month rolling average, are equal to or less than the allowable limit determined by the use of the following equation:

 EL = 330 (vol)^0.6

 where:

 EL = the 3-month rolling average monthly emission limit (kilograms/month).

 vol = the cleaning capacity of machine (cubic meters)

   (3)  The operator of each machine equipped with a solvent adsorber shall measure and record the concentration of solvent in the exhaust of the carbon adsorber weekly with a colorimetric detector tube designed to measure a concentration of 100 ppm by volume of solvent to air at an accuracy of ± 25 ppm by volume. This test shall be conducted while the solvent cleaning machine is in the working mode and is venting to the adsorber.

   (4)  The operator of each machine equipped with a solvent adsorber shall maintain and operate the machine and adsorber system so that emissions from the adsorber exhaust do not exceed 100 ppm by volume measured while the solvent cleaning machine is in the working mode and is venting to the adsorber.

   (5)  The machine shall be equipped with a permanent, conspicuous label summarizing the operating requirements in paragraph (6).

   (6)  Airless cleaning machines and airtight cleaning machines shall be operated in accordance with the following procedures:

     (i)   Waste solvent, still bottoms and sump bottoms shall be collected and stored in closed containers. The closed containers may contain a device that allows pressure relief, but does not allow liquid solvent to drain from the container.

     (ii)   Parts shall be oriented so that the solvent drains freely from the parts. Cleaned parts shall be drained at least 15 seconds or until dripping ceases, whichever is longer. Parts having cavities or blind holes shall be tipped or rotated while the part is draining.

     (iii)   Parts or parts baskets may not be removed from the in-line vapor cleaning machine until dripping has ceased.

     (iv)   Sponges, fabric, wood, leather, paper products and other absorbent materials may not be cleaned in the airless cleaning machines and airtight cleaning machines.

     (v)   Spills during solvent transfer and use of the airless cleaning machines and airtight cleaning machines shall be cleaned up immediately.

     (vi)   Work area fans shall be located and positioned so that they do not blow across the airless cleaning machine and airtight cleaning machine.

     (vii)   Spraying operations shall be done in the vapor zone or within a section of the machine that is not exposed to the ambient air.

     (viii)   When solvent is added to or drained from the airless cleaning machine and airtight cleaning machine, the solvent shall be transferred using threaded or other leakproof couplings and the end of the pipe in the solvent sump shall be located beneath the liquid solvent surface.

 (e)  Alternative provisions for solvent cleaning machines. This section applies to all solvent cleaning machines used to process metal parts that use solvents containing greater than 5% VOC by weight. As an alternative to complying with subsections (b)—(d), the operator of a solvent cleaning machine may demonstrate compliance with paragraph (1) or (2). The operator shall maintain records sufficient to demonstrate compliance. The records shall include, at a minimum, the quantity of solvent added to and removed from the solvent cleaning machine, the dates of the addition and removal and shall be maintained for at least 2 years.

   (1)  If the solvent cleaning machine has a solvent/air interface, the owner or operator shall:

     (i)   Maintain a log of solvent additions and deletions for each solvent cleaning machine.

     (ii)   Ensure that the emissions from each solvent cleaning machine are equal to or less than the applicable emission limit presented in Table 1:

Table 1

Emission Limits for
Solvent Cleaning Machines with a
Solvent/Air Interface

Solvent cleaning machine	3-month rolling average
	monthly emission limit
	(kg/m2/month)	lb/ft2/month
Batch vapor solvent cleaning machines	150	30.7
Existing in-line solvent cleaning machines	153	31.3
In-line solvent cleaning machines installed after the effective date of the regulation	99	20.2

   (2)  If the solvent cleaning machine is a batch vapor cleaning machine and does not have a solvent/air interface, the owner or operator shall:

     (i)   Maintain a log of solvent additions and deletions for each solvent cleaning machine.

     (ii)   Ensure that the emissions from each solvent cleaning machine are equal to or less than the appropriate limits as described in paragraphs (3) and (4).

   (3)  For solvent cleaning machines without a solvent/air interface with a cleaning capacity that is less than or equal to 2.95 cubic meters, the emission limit shall be determined using Table 2 or the equation in paragraph (4). If the table is used, and the cleaning capacity of the cleaning machine falls between two cleaning capacity sizes, the lower of the two emission limits applies.

   (4)  For cleaning machines without a solvent/air interface with a cleaning capacity that is greater than 2.95 cubic meters, the emission limit shall be determined using the following equation.

 EL = 330 (vol)^0.6

 where:

 EL = the 3-month rolling average monthly emission limit (kilograms/month)

 vol = the cleaning capacity of machine (cubic meters)

   (5)  Each owner or operator of a batch vapor or in-line solvent cleaning machine complying with this subsection shall demonstrate compliance with the applicable 3-month rolling average monthly emission limit on a monthly basis. If the applicable 3-month rolling average emission limit is not met, an exceedance has occurred. Exceedances shall be reported to the Department within 30 days of the determination of the exceedance.

Table 2. Emission Limits for Solvent Cleaning Machines Without a Solvent/Air Interface

   The provisions of this §  129.63 issued under section 1920-A of The Administrative Code of 1929 (71 P. S. §  510-20); and section 5 of the Air Pollution Control Act (35 P. S. §  4005).

   The provisions of this §  129.63 adopted April 27, 1979, effective August 1, 1979, 9 Pa.B. 1447; corrected May 11, 1979, effective August 1, 1979, 9 Pa.B. 1534; amended September 26, 1980, effective September 27, 1980, 10 Pa.B. 3788; amended June 19, 1981, effective June 20, 1981, 11 Pa.B. 2118; amended December 21, 2001, effective December 22, 2001, 31 Pa.B. 6921. Immediately preceding text appears at serial pages (199533) to (199536).

 (a)  After April 30, 1982, no person may permit the use or application of cutback asphalt for paving operations except when any of the following applies:

   (1)  Long-life stockpile is necessary.

   (2)  The use or