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the affected bottom ash as Hazardous Waste until the source of the exceedance has been identified and corrected. This includes the following: a. If the exceedance is due to metals, the Fuel Manager will be contacted and a thorough quality review of all fuel suppliers will commence until the source of the contaminant has been determined b. If the exceedance is due to pH, DTES Plant Manager will be made aware of the exceedance and a review of operational parameters, including the bottom ash treatment system, will be thoroughly reviewed. 8. If the exceedance occurs during an annual test, DTES will return to quarterly sampling and testing, as described in 1-5 above, until four consecutive quarterly tests have proven to be non-hazardous. Ash will be stored on site during the waste characterization process or sent to Non — RCRA hazardous waste disposal. Additional details regarding the sampling is provided in the subsequent sections. 10.3.1 SAMPLING METHODOLOGY AND ANALYSIS To properly evaluate and characterize material slated for off-site disposition, representative samples of the bottom ash are randomly collected during the transfer of the bottom ash to the trucks, one week per quarter. If DTES finds the bottom ash sampled and tested was non-hazardous for four consecutive quarters, it can, based on generator knowledge, move to an annual sampling and testing process. Under the annual sampling and testing process, DTES would collect representative samples of the bottom ash from the bottom ash storage for four (4) trucks, one week per year. Samples are collected using a simple random sampling strategy. The same equipment and cleaning procedures described for fly ash sampling should be used for bottom ash sampling. The sampling methodology outlined in this AMP describes the general procedures and methods for sample collection, logging, control, and submittal for laboratory analysis. 10.3.1 .1 LOADER BUCKET ALIQUOTS The sampling frequency outlined in this AMP includes the collection of discrete aliquots on a randomized basis from the loader buckets during the transfer of the bottom ash to the truck prior to transportation off-site. The bottom ash in the loader buckets are sampled by randomly collecting approximately 100 grams of material a minimum of eight (8) times from the loader buckets. A master sample control log will be maintained that documents the date of sample collection, sample type (fly or bottom), truck number, name and initials of sampler, sample ID number, and a column for comments on the sample. Following collection, the samples will be maintained and submitted for laboratory analysis under proper chain of custody procedures. 26