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0 0 <br />In an urban setting a common method of disposal for oily sludges is shipment to <br />a commercial facility that accepts E&P waste. According to industry <br />representatives, in a rural setting tank bottoms and other sludges are often <br />recycled and used for fabrication of road mix. The sludge material is processed <br />at an on-site roadmap facility, and the resulting material is applied to private <br />roads within the facility, due to its dust -suppressing properties. <br />Table 3: Production Facilities in California, 1995 <br />mated number of oil <br />mated number of Dr <br />action facilities <br />uction DitS <br />number of tanks associated with <br />Data source: API, 2000 <br />061 <br />23 <br />facilities 134.44 <br />A •. treatment operation is a workover procedure whereby soap is injected <br />into a well to dissolve paraffin deposits that hinder production. This is an <br />inexpensive alternative to acidizing, or the injection of strong acid for removal of <br />salt scale or paraffin. Fluids injected to remove unwanted deposits and circulated <br />back up to the surface are usually referred to as stimulation fluids. <br />Stimulation fluids are workover wastes which are grouped in the category of <br />associated wastes. Although most types of associated wastes were not sampled <br />due to unavailability during this study, published data pertaining to associated <br />wastes are included for reference in Table 4. <br />Statewide Compliance Division- May,2002 <br />IME <br />