SISAPCD RULE 8.1 BENZENE EMIS. FROM RETAIL SERVICE STATIONS
LAST REVISED 01/01/89          
          
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          RULE 8.1  Benzene Emissions from Retail Service Stations
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          A. Purpose
             To  comply with California Code of Regulations, Section 93101,
             by reducing  airborne  benzene  emissions  from retail service
             stations.

          B. Definitions

            1. ARB-Certified Vapor Recovery System
                A  vapor  recovery system which has been certified  by  the
                state board  pursuant  to  Section  41954 of the Health and
                Safety Code.

            2. Gasoline
                Any  organic  liquid (including petroleum  distillates  and
                methanol) having  a  Reid  vapor pressure of four pounds or
                greater and used as a motor  vehicle fuel or any fuel which
                is commonly or commercially known or sold as gasoline.

            3. Hold-Open Latch
               A device that allows hands-off refueling of a vehicle.

            4. Motor Vehicle
                The same meaning as defined in  Section  415 of the Vehicle
                Code.

            5. Owner or Operator
                An owner or operator of a retail service station.

            6. Phase I Vapor Recovery System
                A  gasoline  vapor  recovery  system which recovers  vapors
                during the transfer of gasoline  from  delivery  tanks into
                stationary storage tanks.

            7. Phase II Vapor Recovery System
                A  gasoline  vapor  recovery  system  which recovers vapors
                during  the  fueling  of  motor  vehicles  from  stationary
                storage tanks.

            8. Retail Service Station
                Any  new or existing motor vehicle fueling service  station
                which  sells  gasoline  to  the  public  and  is subject to
                payment of California sales tax on gasoline sales.

            9. Existing Retail Service Station
                Any retail service station operating, constructed, or under
                construction as of January 15, 1989.

           10. New Retail Service Station
                Any  retail  service  station  which is not constructed  or
                under construction as of January 15, 1989.

           11.  Tank Replacement
                Replacement  of  one  or more gasoline  stationary  storage
                tanks at an existing retail  service station or replacement
                of  50  percent  or  more  of  an existing  retail  service
                station's  total  underground  liquid   piping   from   the
                stationary storage tanks to the gasoline dispensers.

           12. Throughput
                The  volume  of  gasoline  dispensed  at  a  retail service
                station.

           13. Leak Free
                A liquid leak of no more than three drops per minute.

           14. Topping Off
                To  attempt  to  dispense gasoline to a motor vehicle  fuel
                tank after a vapor  recovery dispensing nozzle has shut off
                automatically.  The filling  of  those vehicle tanks which,
                because of the nature and configuration  of  the fill pipe,
                causes  premature  shut  off of the dispensing nozzle,  and
                which are filled only after  the seal between the fill pipe
                and the nozzle is broken, shall  not  be considered topping
                off.

           15.  Vapor Tight
                A  leak  of  less than 100 percent of the  lower  explosive
                limit on a combustible  gas detector measured at a distance
                of 2.5 cm (1 inch) from the  source  or no visible evidence
                of air entrainment in the sight glasses  of liquid delivery
                hoses.

          C. Compliance Schedule

            1.  After January 15, 1989, the owner or operator  of  any  new
                retail  service  station  subject to this rule shall comply
                with its provisions at the time gasoline is first sold from
                the station.

            2.  The  owner  or  operator  of any  existing  retail  service
                station without ARB-certified Phase I and II vapor recovery
                systems  shall notify the Control  Officer  in  writing  in
                advance of  an  intended  tank replacement and shall secure
                all  necessary  permits  and  other   approvals   for   the
                installation  of Phase I and II vapor recovery systems. The
                owner or operator of an existing retail service station not
                exempt by this  rule  shall  comply  with the provisions of
                this rule upon completion of the tank replacement.

            3.  The owner or operator of an existing retail service station
                who  has  not  earlier  complied in accordance  with  C.2.,
                shall,  by April 1, 1990,  secure  all  permits  and  other
                approvals  necessary  for  installation  of  the  equipment
                required  by this rule. The owner or operator shall  comply
                with the provisions of this rule by January 1, 1991.

            4.  Excluding those existing retail service stations subject to
                this rule as  a  result  of  tank replacement, the owner or
                operator of a previously exempt  stationary storage tank or
                retail  service  station  where  the  operation  or  annual
                throughput has changed such that the exemption  from either
                the  Phase I  or  II  requirements  or  both  is  no longer
                applicable, shall comply with this rule's provisions within
                12 months of loss of said exemption.

            5.  Any  owner  or  operator  of  a  retail service station not
                exempt by D.2.a., D.2.b., or D.2.c. shall by July 1, 1990:
               a.  Install  and  maintain in good working  order  hold-open
                   latches on all gasoline dispensers.
               b.  Conspicuously post  in  the  gasoline  dispensing area a
                   reasonable facsimile of the following:

                     (Letters shall be a minimum of 1-inch high)
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                    WARNING: Gasoline vapors can be hazardous    
                    to your health.  Ask attendant how hold-open 
                    latches can reduce your risk.                
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          D. Phase I Vapor Recovery System Requirements

            1.  No owner or operator shall transfer, permit  the  transfer,
                or provide equipment for the transfer of gasoline,  and  no
                other  person  shall  transfer  gasoline  from  a  gasoline
                delivery  tank  at  a  retail  service  station  unless  an
                ARB-certified Phase I vapor recovery system is installed on
                the stationary storage tank and used during the transfer.

            2.  The provisions of D.1. shall not apply to:
               a.  A  stationary  storage tank with a capacity of less than
                   260 gallons.
               b.  A stationary storage  tank used the majority of the time
                   for the fueling of implements of husbandry.
               c.  A stationary storage tank used exclusively to fuel motor
                   vehicles with a fuel capacity of five gallons or less.
               d.  An  existing  retail  service  station  with  an  annual
                   throughput of 480,000 or  fewer  gallons during the 1988
                   calendar year.  If during any calendar  year  thereafter
                   the gasoline throughput from such tanks at the  existing
                   retail  service  station  exceeds  480,000 gallons, this
                   exemption shall cease to apply commencing with the first
                   day of the following calendar year.
               e.  A transfer to a stationary storage tank  at  an existing
                   retail   service   station   which   receives   gasoline
                   exclusively from delivery tanks that are not required to
                   be equipped with vapor recovery systems.

            3.  Notwithstanding D.2.d., at the time of tank replacement  at
                any  existing retail service station, ARB-certified Phase I
                vapor   recovery   systems  shall  be  installed  and  used
                thereafter  on all the  station  facilities,  except  those
                which are exempt by D.2.a., D.2.b., D.2.c., or D.2.e.

          E. Phase II Vapor Recovery System Requirements

            1.  No owner or operator shall transfer, permit the transfer or
                provide equipment  for  the  transfer  of  gasoline  from a
                stationary storage tank at a retail service station into  a
                motor  vehicle  fuel  tank unless an ARB-certified Phase II
                vapor recovery system is  installed  and  used  during  the
                transfer.

            2.  The provisions of E.1. shall not apply to:
               a.  A  stationary  storage tank which is exempt from Phase I
                   requirements under D.2.a., D.2.b., or D.2.c.
               b.  An existing retail  service station which is exempt from
                   Phase I requirements under D.2.d.

            3.  Notwithstanding E.2.b.,  at the time of tank replacement at
                an existing retail service  station, ARB-certified Phase II
                vapor  recovery  systems  shall   be   installed  and  used
                thereafter on all of the station facilities,  except  those
                which are exempt by E.2.a.

          F. Operation and Maintenance Requirements
             The  operator  of  each retail facility using a Phase II vapor
             recovery   system   shall    conspicuously    post   operating
             instructions  for the system in the gasoline dispensing  area.
             The instructions  shall  clearly describe how to fuel vehicles
             correctly with vapor recovery nozzles used at the station, and
             shall  include  a  warning that  topping  off  may  result  in
             spillage  or recirculation  of  gasoline  and  is  prohibited.
             Additionally,  the  instructions  shall  include  a  prominent
             display   of   the   Siskiyou  County  Air  Pollution  Control
             District's  or  the  ARB's   toll-free  telephone  number  for
             complaints.
             All  Phase I and Phase II gasoline  vapor  recovery  equipment
             shall  be  installed  as  required  by  ARB  certification and
             operated  as  recommended  by  the manufacturer and  shall  be
             maintained to be leak free, vapor  tight,  and in good working
             order.
          G. Correction of Defects
             No owner or operator shall use or permit the  use of any Phase
             II  system  or  any  component  thereof  containing  a  defect
             identified  in  Title  17,  California  Code  of  Regulations,
             Section  94006  until  it  has  been  repaired,  replaced,  or
             adjusted, as necessary to remove the defect, and,  if required
             under   Health  and  Safety  Code  Section  41960.2,  district
             personnel  have  reinspected the system or have authorized its
             use pending reinspection.  Nothing  in  this subdivision shall
             excuse compliance with subdivision E.1.

          H. Fees
             Sources subject to this rule shall pay the  fees  required  by
             Regulation III.


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