2010/05/26 Council Agenda Packet

PERMIT 4 SW -204 PERMIT PERIOD: JULY 1, 2009 TO JUNE 30, 2010 Page 6 of 7 SECTION VII. APPROVED PERMIT AMENDMENTS Date Approved March 7, 1991 letter Request and conditions Continue dumping concrete slurry as long as the pH remains of explanation 12, and the slurry passes the EPA's Paint Filter Liquid Test. je (revised 6/11/08 December 23, 1994 Accept class 2 petroleum contaminated soil. Incoming loads tested and approved prior to disposal. Record keeping requirements and DOE approval dated include sources, quantity, level of contamination, and location of of the material. Class 2 soil must be 20 feet below final December 14, 1994 placement grade. The "Statement of Fact" recorded on the Property Deed at the time of closure shall reflect the quantity of class 2 soils as well as a description of other waste present. February 10, 2002 Accept asphalt materials that have been used for structural and construction purposes (e.g., roads, dikes, paving) that were produced from mixtures of petroleum asphalt and sand, gravel or other similar materials, per WAC 173-350. June 6, 2003 Accept the product KAOWOOL, a vitreous aluminosilicate fiber, as an inert material in its association with sand-cast ceramic waste. September 26, 2003 Accept "Monierlifetile" cement roofing tiles as an acceptable inert waste material. November 6, 2003 Accept cured phenolic resin as an acceptable inert waste material. March 17, 2005 Ensure that all waste is above the seasonal high level of groundwater -bearing unit which is horizontally and as defined as any water vertically extensive, hydraulically recharged and volumetrically significant. July 21, 2006 Tolt Water Treatment Facility's backwash solids which were erroneously deposited between October and November, 2005, require similar disposal conditions as stated for Port of Everett soils. July _28,2006 Rock Bay, BC / La Farge soils were approved for disposal providing as stated for Port of Everett soils. similar disposal conditions August 23, 2006 Material can be accepted into the IWLF providing the pH is not than or equal to 12.5, and soils do not exceed MTCA Method (revised 6/11/08) greater A soil Cleanup Levels for Unrestricted Land Uses unless otherwise approved by Department of Ecology and Snohomish Health District. June 14, 2007 (revised 6/11/08) In reference to Department of Ecology's letter to the Snohomish Health District dated June 8, 2007, Rinker Materials can not landfill soil or other inert material which has a pH greater than 10. July 14, 2008 In reference to Department of Ecology's letter to the Snohomish incoming Health District dated July 14, 2008, Cemex can not accept wastes capable of producing leachate above 8.5.