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ORC TECHNICAL BULLETIN # 111.4 <br /> Oxygen Release Compound, ORC® <br /> Disposition of Compounds <br /> ORC contains up to three percent of food grade potassium phosphate. The <br /> phosphate is specifically KH2PO4, also known as monopotassium phosphate or <br /> N KP and/or K2HPO4, which is dipotassium phosphate or DKP. The <br /> concentration cited is intimately bound to the crystalline structure of magnesium <br /> peroxide Some, if not most of it, will eventually be released since it is water <br /> soluble and magnesium peroxide is not Even though a portion will remain with <br /> the spent product, to be conservative we may assume it will all be released If <br /> this is the case one has to evaluate the total volume of water that will solubilize <br /> the extant phosphate, in order to derive a concentration that could permeate the <br /> aquifer It can be easily shown that the amounts fall below 1 ppm in the <br /> immediate vicinity of the source SvPII <br /> Qualitatively, several points should be made with respect to the benign nature <br /> of the phosphates in question First, they are ingestible and harmless; they are <br /> used as meat moisturizers and in baby food Regenesis uses a food-grade <br /> product for the extra purity. It is not imperative that it be food-grade pure to be <br /> safe - as the lesser grades are sold as fertilizer. Furthermore, the phosphates are <br /> invariably going to be metabolized by any of the sub-surface microorganisms, <br /> aerobic or anaerobic, as it is a basic nutrient that is essential to life Its ultimate <br /> fate in living organisms, from microbes to mammals, is that it will become part <br /> of the ubiquitous array of biochemicals that contain phosphate <br /> Also, field data from the University of North Carolina shows that phosphate <br /> levels were completely unchanged from background in response to contact with <br /> ORC. All phosphate levels at the site were below .5 ppm Even if several ppm <br /> are being released in proximity to the well, it is apparently able to be consumed <br /> rather quickly by the microbes present <br /> REGENESIS ------------------------------------------------------------------------------ <br /> Bioremediation Products 27130A Paseo Espada. Ste 1407, San .duan Capistrano, CA 92675 <br /> Phone 714-443-3136 Fax 714-443-3140 <br />