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CAMBRIDGE ENVIRONMENTAL SYSTEMS INC.ANNOUNCES COMPLETION OF OILFIELD WASTE TEST

 CALGARY, Alberta, Nov. 9 /PRNewswire/ -- Cambridge Environmental Systems Inc. is pleased to announce that its wholly owned subsidiary, Skimmer Oil Separators, has successfully completed the first of three tests to confirm its oilfield waste treating system. The test was completed on Nov. 5, 1993, and witnessed by representatives of the Energy Resources Conservation Board of Alberta (ERCB).
 The Skimmer system successfully treated 95 cubic meters (145 tons) of oily waste from Canadian Occidental Petroleum's Morgan Battery, located near Islay, Alberta. The Skimmer process removed and recovered over 99 percent of all hydrocarbons present and reduced chloride levels from over 6,000 parts per million (ppm) to less than 200 ppm., a level 75 percent below the standards set by the ERCB. The ERCB gave its unconditional approval for Skimmer to begin its second test during the week of Nov. 7, 1993.
 The material tested was comprised of dry production sand (5-10 percent hydrocarbons) slop oil (20-30 percent hydrocarbons) and oil spill material with a high clay content. Approximately 105 barrels of heavy oil were recovered during the test. Laboratory analysis shows that the process successfully stripped hydrocarbon from clay, silt and sand-sized fractions. Additional tests on various waste streams will continue during the month of November.
 The Vancouver Stock Exchange has not reviewed and does not accept responsibility for the adequacy of accuracy of the contents of this news release.
 -0- 11/9/93
 /CONTACT: Jim Crowley, 403-269-2492/
 (CVY.)


CO: Cambridge Environmental Systems Inc. ST: Alberta IN: OIL SU:

JB-EH -- LA028 -- 2295 11/09/93 13:27 EST
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Publication:PR Newswire
Date:Nov 9, 1993
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