Air Operating Permit - Puget Sound Clean Air Agency

II. MONITORlNG, MAINTENANCE, AND RECORDKEEPING Permit No. 13120Expiration Date: September 12, 2013Page 221 of29112.03(g), 4/9/1998, Order of Approval 7438 Condition 4, 8/4/99] [Puget SoundClean Air Agency Reg. I: 12.03(g), 9123104, State Only].(s) Off-Site Waste and Recovery NESHAP VOHAP ConcentrationDeterminationBoeing shall prepare and maintain documentation to show that the average VOHAPconcentration of each off-site material stream managed in the off-site materialmanagement unit remains at a level less than 500 ppmw. This concentration shall bebased on the HAP content of the off-site material stream at the point-of-delivery.Boeing shall perform an initial determination of the average VOHAP concentration ofeach off-site material stream using the procedures specified in 40 CFR 63.694(b), EU6.15, before the first time any portion of the off-site material stream is placed in the unit.Thereafter, Boeing shall review and update, as necessary, this determination at leastonce every 12 months following the date of the initial determination, February 1, 2000,for the off-site material stream. [40 CFR 63.683(b)(I)(iii) & (c)(I)(ii), 7/20/99]Boeing-Everett Permit, issued September 12, 2008; Administrative Amendment 3: October 10, 20 J 2