RULE 414.5     Pump and Compressor Seals at Petroleum Refineries and Chemical Plants -
               Adopted 1/9/79, Amended 6/26/79, 11/27/79, 4/5/82, 8/22/89, 4/30/90, 5/6/91

I.   Applicability

     This Rule applies to seals on pumps and compressors and associated seal fluid systems in
     petroleum refineries and chemical plants that may be the source of fugitive VOC

II.  Definitions

     A. Background - a reading on a portable hydrocarbon detection instrument which is
        taken at least three meters upwind from any pump or compressor seal to be inspected
        and which is uninfluenced by any specific emission point.

     B. Chemical Plant - an establishment that produces organic chemicals and/or
        manufactures products by organic chemical process.

     C. Commercial Natural Gas - a mixture of gaseous hydrocarbons, chiefly methane and
        less than 10% VOC's excluding ethane as determined in accordance with ASTM
        Methods E168-67, E169-63, or E260-73, used as a fuel and obtained from a
        company licensed to dispense such gases.

     D. Device - a pump or compressor at a refinery or chemical plant which handles a
        volatile organic compound or any associated seal fluid system which circulates a
        fluid through or between seals on process pumps or compressors.

     E. Essential Device - any device which cannot be taken out of service without reducing
        by more than 33% the throughput of the process unit which it serves.

     F. Leak - 
        1. a reading as methane on a portable hydrocarbon detection instrument which is
           in excess of 10,000 ppm above background when measured at a distance of one
           centimeter from the potential source with an instrument calibrated with methane.

        2. the dripping of liquid VOC's at a rate of more than three drops per minute.

     G. Refinery - an establishment that processes petroleum as defined in the Standard
        Industrial Classification Code under 2911 - petroleum refining.

     H. Portable Hydrocarbon Detection Instrument - a hydrocarbon analyzer which uses the
        flame ionization detection or thermal conductivity methods and satisfies Method 21,
        40 CFR Part 60.  The instrument shall be calibrated on methane and sampling at one
        liter per minute.

     I. Process Unit - components assembled to produce intermediate or final products from
        petroleum, unfinished petroleum derivatives, or other intermediates which can
        operate independently if supplied with sufficient feed or raw materials and sufficient
        storage facilities for the product.

     J. Volatile Organic Compound (VOC) - any compound containing at least one atom of
        carbon except for the following exempt compounds:

        carbon Monoxide,
        carbon Dioxide,
        carbonic Acid,
        metallic Carbides or Carbonates,
        ammonium Carbonates,
        methylene Chloride,
        methyl Chloroform (1,1,1-trichloroethane),
        CFC-113 (trichlorotrifluoroethane),
        CFC-11 88, (2trichlorofluoromethane),
        CFC-12 (dichlorodifluoromethane),
        CFC-22 (chlorodifluoromethane),
        FC-23 (trifluoromethane),
        CFC-114 (dichlorotetrafluoroethane),
        CFC-115 (chloropentafluoroethane),
        HCFC-123 (dichlorotrifluoroethane),
        HFC-134a (tetrafluoroethane),
        HCFC-141b (dichlorofluoroethane), and
        HCFC-142b (chlorodifluoroethane).

III. Exemptions

     The provisions of this Rule shall not apply to:

     A. Any device handling only commercial natural gas.

     B. Any device handling material containing less than 10% by weight volatile organic
        compounds (as determined by ASTM Methods E-260-73,, E-168-67, or E-169-63.)

     C. Any device exclusively handling heavy liquid streams which have less than 10%
        evaporation at 150C as determined by ASTM Method D-86-78 provided the facility
        operator so identifies such components as outlined in Subsection V.A.

     D. Ethane shall be excluded from the requirements of this Rule if the ethane content of
        the stream being handled is less than 20% by volume.  A facility operator requesting
        exemption of ethane shall demonstrate by gas chromatographic analysis (qualitative
        and quantitative determination done in accordance with ASTM Method E-260-73),
        that such stream has an ethane content less than 20%.

IV.  Requirements

     A. General

        1. Any device shall be inspected for leaks at least once every three months.

        2. Any pump shall be visually inspected weekly.  Whenever volatile organic
           liquids are observed dripping from a pump seal, the seal shall be checked within
           three days with a portable hydrocarbon detection instrument to determine if a
           leak is present or the drippage stopped within the same time frame.  If a leak is
           present, the leak shall be repaired in accordance with Section IV.B.

        3. A facility operator shall not use any device at a Petroleum Refinery or Chemical
           Plant unless such device does not leak.

        4. Emissions from devices which have been tagged by the facility operator for
           repair in accordance with the requirements of Subsection IV.B. or which have
           been repaired and are waiting re-inspection pursuant to Subsection IV.A. shall
           not be in violation of the prohibitions in Subsection IV.A.3. providing the
           number of leaking devices of any type does not exceed two percent of the total
           number of devices of that type that were inspected and that are subject to the
           prohibitions of this Rule.

     B. Repairs

        1. Any person operating a device handling volatile organic compounds which is
           leaking shall repair the leaking device within fifteen calendar days.  If the
           leaking device is essential and cannot be repaired within fifteen days after
           detection, one of the following actions shall be taken:

           a.  replace the leaking device and inspect for leaks within three days after
               detection, or

           b.  vent emissions to a vapor recovery device that is at least 95% efficient as
               measured by EPA Method 25, or to a flare that satisfies the requirements
               of 40 CFR 60.18, or

           c.  repair the essential device to eliminate the leak during the next process unit
               shutdown, but in no case later than one year from the date of the original
               leak detection.

        2. A readily visible identification, in the form of a weather proof tag shall be
           attached to any device which leaks.  Devices to be repaired at the next shutdown
           shall be tagged, marked or coded in a manner easily identifiable by District

V.   Administrative Requirements

     A. Operator Management Plans

        1. Each operator shall, not later than November 1, 1991, submit a management
           plan to the Control Officer.  The management plan shall describe how the
           operator will comply with the requirements of this Rule.

           The management plan must include:

           a.  a description of any hazard which might affect the safety of an inspector;

           b.  identification of process units which cannot be immediately shutdown for
               repair of leaks;

           c.  identification of components for which an exemption in accordance with
               Subsection III.A. through III.F. of this Rule is requested;

           d.  specific identification of the resource commitment to a program to
               implement, inspect, and repair components;

           e.  schedule of quarterly inspections to be conducted in accordance with EPA
               Method 21.; and

           f.  repair procedures to be used within 15 calendar days following leak
               detection which results in compliance with the requirements of this Rule.

        2. The operator of a new facility or a facility to be modified shall submit a new or
           modified operator management plan to the Control Officer prior to
           implementation of an Authority to Construct.

        3. Each management plan shall:

           a.  specify whether contractor or employee inspection will be used;

           b.  specify training standards for personnel performing inspections, and

           c.  provide leak detection training (using a portable hydrocarbon detection
               instrument) for new operators, and for experienced operators as necessary.

        4. Changes to the management plan must be submitted to the Control Officer
           before implementation.  If Control Officer fails to respond to the plan in writing
           within 30 days, it shall be deemed approved.

     B. Recordkeeping

        1. Each operator shall maintain an inspection log containing, at a minimum, the

           a.  Name, location, type of components, and description of any unit where
               leaking components are found;

           b.  Date of leak detection, emission level (ppm) of leak, and method of

           c.  Date and emission level of recheck after leak is repaired;

           d.  Identification of leaks that cannot be repaired until next process unit
               turnaround; and

           e.  Total number of components inspected, and total number and percentage
               of leaking components found.

        2. Copies of the inspection log shall be retained by the facility operator for a
           minimum of 2 years after the date of an entry.

        3. Copies of the inspection log shall be made available upon request to District

     C. Test Methods

        1. Inspection procedures

           a.  Sampling measurements shall be performed with a portable hydrocarbon
               detection instrument in accordance with Method 21, 40 CFR Part 60.

           b.  Sampling of a seal shall be performed one centimeter from the outer end of
               the shaft seal interface or at a distance of one centimeter of any other point
               on the seal which could leak.

           c.  Sampling of atmospheric vents on pump and compressor seal fluid systems
               shall be measured in the plane of the opening of the vent at the centrad.

        2. Analysis of halogenated exempt compounds shall be by ARB Method 432.

        3. Determination of Emissions:  Emissions of VOC shall be measured by EPA
           Method 25, 25a, or 25b, as applicable, and analysis of halogenated exempt
           compounds shall be analyzed by ARB Method 422.

VI.  Compliance Schedule

     A. By November 1, 1991, the operator of a device shall be in full compliance with the
        requirements of this Rule.