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<br /> " i <br />" th <br />i <br />hi <br />h i <br />b <br /> retorting s <br />14ine water <br />itself. appears <br />n <br />e <br />water w <br />c m <br />ne <br />ut <br /> does not come into contact with the retort. Retort water and mine water <br /> are separ ately collected and handle d. t4ine water is kept out of tiie <br />' retorts, as described below under " Design of Mine llorkings", and sub- <br /> sequently recycled or discharged in accordance with an IJPDES permit. <br />' <br /> Some mine water may be added to the ThermoSludge boiler, comm ingled there <br />' with retort water and utilized <br />(as described beto~v), but that <br />as retort v+ater. Retort water <br />system and used. The uses are <br />The total amounts of <br />in connection v+ith the retorting process <br />water thereafter is handled and recycled <br />is collected, contained v+ithin a closed <br />more fully described below. <br />water involved are small. Occidental's <br />experience has been that during retorting the retort water and mine water <br />are insufficient in quantity to supply the make up for the 34 gallons per• <br />' minute required for the ThermoSludge boiler, and that additional water <br />from other sources must be provided. <br />Handling of Retort Water <br />' No water can escape from the retort into the formation during <br />or after retorting because of the potential Hydraulic head outside of <br />the retort and the fact that the retort is continuously drained. Retort <br /> water thus comes down with the oil and is separated from the oil by <br /> conventional oil field techniques. The oil is saved as the product of <br />' tfie process, and retort water is collected a nd recycled in a closed <br /> system. (See Exhibit 8A attached hereto.) Retort v+ater is used in the <br />' <br /> ThermoSludge Hoiler to generate steam, v+hich is then reintroduced into <br />' the retort as part of the retorting process. The only losses of retort <br /> water are as vapor in the retort offgas and as blowdov+n from the Thermo- <br />' Sludge boiler . The offgas is handled in acc ord with a separate permit <br />' issued by the Air Pollution Control Division of the Colorado Department <br /> of Health, an d the blowdown must be handled in accord with requirements <br />' of the lJater Quality Control Division of the Colorado Department of Health <br /> -3- <br />