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EPA ID NUMBER CA O(1 `144A7 _ Page lL of CONDITIONALLY EXEMPT-SMALL QUANTITY TREATMENT UNIT SPECIFIC NOTIFICATION (pursuant to Health and Safety Code Section 25201.5(a)) UNITNAME NCPA GAS TURBINE UNIT ID NUMBER 1 NUMBER OF TREATMENT DEVICES: — I Tank(s) _ Cootainer(s) Please Note: Generators operating units under Conditionally Exempt Small Quantity Treatment may not operate any other units under other permitting tiers or hold any other state or federal hazardous waste permit or authorization for this facility. Each unit must be clearly identified and labeled on the plot plan attached to Form 1772. Assign your own unique number to each unit. The number can be sequential (I, 2, 3) or you may use any system you choose. This category is only available to generators that treat less than 55 gallons or 500 pounds of hazardous waste in any calendar month in ALL units at thisfaciliry and that are not otherwise required to obtain a hazardous wastefacilities permit. This volume limit applies to the TOTAL hazardous waste treated onsite in any calendar month, and is NOT a limit for each wastestream or unit separately. the wastestreams treated must be limited to those listed in title 22, CCR, section 67450.11, which are also listed below. Enter the estimated monthly total volume of hazardous waste treated by this unit. This should be the maximum or highest amount treated in any month. Indicate in the narrative (Section II) if your operations have seasonal variations. I. WASTESTREAMS AND TREATMENT PROCESSES: Estimated Monthly Total Volume Treated: pounds and/or 20 gallons The following are the eligible wastestreams and treatment processes. Please check all applicable bases: 1. Aqueous wastes containing hexavalent chromium may be treated by the following process: ❑ a. Reduction of hexavalent chromium to trivalent chromium with sodium bisulfite, sodium metabisulfite, sodium thiosulfate, ferrous sulfate, ferrous sulfide or sulfur dioxide provided both pH and addition of the reducing agent are automatically controlled. 2. Aqueous wastes containing metals listed in Title 22, CCR, section 66261.24 (a)(2), including silver from photofinishing, and/or fluoride salts may be treated by the following technologies: I ❑ a. pH adjustment or neutralization. ❑ b. Precipitation or crystallization. ❑ C. Phase separation by filtration, centrifugation, or gravity settling. ❑ d. Ion exchange. ❑ e. Reverse osmosis. ❑ f. Metallic replacement. ❑ g. Plating the metal onto an electrode. ❑ h. Electrodialysis. ❑ i. Electrowinning or electrolytic recovery. ❑ j. Chemical stabilization using silicates and/or cementitious types of reactions. ❑ k. Evaporation. ❑ L Adsorption. DTSC 1772A (1/93) Page 4