NAC445B.3653. Identification of tier-1 thermal units that emit mercury.  


Latest version.
  • The existing thermal units that emit mercury which are set forth in this section, and none other, are tier-1 thermal units that emit mercury:

         1. For Goldstrike Mining Operations of Barrick Gold Corporation:

    SYSTEM OR PROCESS UNITS OF TIER-1 THERMAL UNITS THAT EMIT MERCURY

    NUMBER OF

    UNITS

    MANUFACTURER, MODEL NUMBER, SERIAL NUMBER OR OTHER DESCRIPTION

    Ore roasting circuits

    2

    S2.209.1 and S2.209.2 from Air Permit 1041-0739

    Carbon reactivation kiln, unit 2 (Drum)

    1

    Lockheed Haggerty, serial number 119-122

    Autoclave circuits (units 1, 2, 2-3, 4 and 5-6)

    6

    Eaton Metals

    Retorts

    3

    EnviroCare Systems

    Retort room exhaust

    1

    Vented through controls on the retorts

    Electric induction furnaces

    2

    Inductotherm Corporation:

    East: Model number 125 KW PowerTrak and serial number 91-50165-246-11

    West: Model number 75 KW PowerTrak and serial number 87-77730-246-11

    Electrowinning cells

    16

    Located on the second floor of the secured refinery building

         2. For Newmont Mining Corporation:

         (a) For the Gold Quarry Operations Area:

    SYSTEM OR PROCESS UNITS OF TIER-1 THERMAL UNITS THAT EMIT MERCURY

    NUMBER OF

    UNITS

    MANUFACTURER, MODEL NUMBER, SERIAL NUMBER OR OTHER DESCRIPTION

    North and south CFB ore preheaters

    2

    Thermal Transfer, custom-made

    North and south CFB ore roasters

    2

    Mark Steel, custom-made

    Carbon regeneration kilns, 1 and 2 (Drum)

    2

    Boliden-Allis, custom-made

    Mercury retort furnaces

    7

    Saracco Manufacturing Corporation, custom-made

    Electric induction furnaces

    3

    Inductotherm Corporation

    Pregnant and barren solution tanks

    3

    Two tanks located inside and one tank located immediately outside the refinery building

         (b) For the Twin Creeks Mine:

    SYSTEM OR PROCESS UNITS OF TIER-1 THERMAL UNITS THAT EMIT MERCURY

    NUMBER OF

    UNITS

    MANUFACTURER, MODEL NUMBER, SERIAL NUMBER OR OTHER DESCRIPTION

    Juniper mill carbon kiln (Drum)

    1

    Lockheed Haggerty

    Pinon mill carbon regeneration kiln (Drum)

    1

    Lockheed Haggerty, Serial number 171-63

    Sage mill autoclaves

    2

    Eaton Metals

    Mercury retort furnaces, A, B, C and D

    4

    Lockheed Haggerty:

    Retorts A-D: Model number 13053

    Retort A: Serial number 171-64a

    Retort B: Serial number 171-64b

    Retort C: Serial number 16082, equipment number 370-514-103

    Retort D: Serial number 16082, equipment number 370-514-104

    Juniper induction furnaces, east and west

    2

    Inductotherm Corporation:

    East: New furnace located in smelting area

    West: Serial number 750-72010-3-87

         3. For the Pipeline Mining Operation of Cortez Gold Mines of Placer Dome, Inc.:

    SYSTEM OR PROCESS UNITS OF TIER-1 THERMAL UNITS THAT EMIT MERCURY

    NUMBER OF

    UNITS

    MANUFACTURER, MODEL NUMBER, SERIAL NUMBER OR OTHER DESCRIPTION

    Electric carbon reactivation kilns, 1 and 2

    2

    Lockheed Haggarty, 48X40

    Electric induction refinery furnaces, 1 and 2

    2

    Inductotherm Corporation, VIP PowerTrak-R; serial numbers 80354 and 59585

    Electrowinning cells

    6

    Summit Valley, 125CF

         4. For the Jerritt Canyon Mine of Queenstake Resources, Ltd.:

    SYSTEM OR PROCESS UNITS OF TIER-1 THERMAL UNITS THAT EMIT MERCURY

    NUMBER OF

    UNITS

    MANUFACTURER, MODEL NUMBER, SERIAL NUMBER OR OTHER DESCRIPTION

    East and west roasters

    2

    Keeler/Dorr-Oliver:

    East: Serial number 46DD 3250

    West: Serial number 46DD 3050

    Refinery and carbon regeneration kiln

    1

    Elmco Technologies, serial number 44DD 3071

     (Added to NAC by Environmental Comm’n by R189-05, eff. 5-4-2006)