6500 MERRILL CREEK PKY TYEE AIRCRAFT 2016-01-01 MF Import

Ovens — All ovens a) are electrically heated, b) do not process significant quantities of flammable or combustible materials on their parts and c)are not mechanicaliy vented. The same properties apply to one annealing furnace with a quench tank. Therefore, ail ovens and the furnace are defined by IFC 2102 as "Furnace Class C". As such, IFC Chapter 21, Industrial Ovens, does not contain applicabie hazardous material related requirements. Your architect and operaling personnel shoutd be aware of ihe mechanical code and operating requirements of IFC Chapter 21. Permitted Hazardous Material that is Below Control Area Exempt Limits Table 2 indicates Ihat all hazardous material categories, except highly toxic as add! ,sed in the next section, are below iheir exempt limits for a sprinklered building (e.g., exempt limit increase for cabinet storage not included unless otherwise noted). Therefore, lhere are su�cient hazardous materials to require a facility hazardous material permit but insufficient quanlities to require a hazardous occupancy rating(e.g., existing"F"occupancy rating is suHicient). Hazardous Material Permitted and Above Control Area Exempt Limits Metal Finishinq — Table 2, Hazardous Material Quantity Compared to Exempt Limits, indicates the highly loxic category is above lhe control area's exempt limits. Table 1, Hazardous Material Inventory Statement, indicates nearly ail of the highly toxic designated material is chromium and cadmium bearing metal finishing soiutions. These lwo metals are susaected carcinogens and are very conservatively categorized as"Highiy Toxic".Their designation is based on 100% concentration data while their actual concentralion is so tow(i.e., most of lhe chromium is about 1°/a) Ihat designalion dala does not exist. Ingeslion is the hazardous exposure route (e.g., not inhalation or dermal) and, therefore, it is an extremely unlikely exposure route to the public or first responders. Given these mitigating circumstances (i.e., very conservative designation, very low conceniralion and unlikely exposure route), an "N Occupancy"would not provide any risk reduction over the curreiit"F Occupancy". Other Required Environmental Permits Citv o( Everett Industrial Waste Waler—Tyee will discharge quench water and trealed oily waste water to the sanitary sewer. A discharge permit application and Professional Engineer's Report conforming to WAC 173-240 will be submitled to Ihe City of Everelt Indusirial Waste Water group. Storm Water — Tyee will nol have slorm water exposed to induslrial activities. Therefore, the company will appiy to Washington State Department of Ecology for a "Conditional Exclusion From Storm Water Permiting Based on "No Exposure"o(Industrial Activities to Storm Water". Hazardous Waste — Tyee will file a "Nolification of Hazardous Waste Activities" with the Department of Ecology. Ecology will Ihen issue lhe company a StatelEPA I.D. number. It is used for manifesting and reporting hazardous waste shipment and disposai. The company is Iikeiy exempt from this requiremenl but it is highly recommended that the company use Ihis system for waste accountability purposes. Municipal Solid Waste — Certain non-hazardous induslrial waste streams may require conditional approval from the Snoliomish County 5olid� Waste Division for disposal lo Ihe municipal waste stream. These waste streams, if any,will be identified and made known to Ihe County.A County disposal authorization may be issued to Tyee. Committed Plans Comoosite Tube Cultinq -The company plans to start cutting a small quanlity of graphite composite strucWral tubes in February 2008. The process was evalualed for combustible dust generalion with respect to possibly requiring a hazardous material occupancy. The generated dust quantity is well below lhe hazardous material exempt limits. Therefore, an "H" Occupancy is not required. The system design is not comptete at lhis lime and not retiected on the altached HMIS. Your operations and engineering personnel are aware of the dust collection requirements. Specifically, IFC Chapter 13, Combustibie Dust-Producing Operalions, references consideration of ignition sources, housekeeping practices and NFPA Standards 69 (Explosion Prevention) and 654 (Manufacturing, Processing and Handling of Combustible Particulate Solids). These considerations shall be included in the system design, operations and, if required, permit amendment. Hazardous Material Management Plan Prior to occupancy, the company will complete an HMMP.