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EPA ID NUMBER GkD009 f -- Page 22-of 23 <br /> CONDITIONALLY AUTHORIZED <br /> UNIT SPECIFIC NOTIFICATION <br /> (pursuant to Health and Safety Code Section 25200.3) <br /> il. Spent cleaners and conditioners which are hazardous solely due to copper or copper compounds with less than 5000 ppm <br /> copper. The volume limit for conditional authorization is 1,000 gallons of this wastestream per facility in any calendar month. <br /> ("These cleaners are limited to surfactants and detergents and do not contain microetch, etchant, plating or metal stripping <br /> solutions or solutions containing oxidizers, or any cleaner based on organic solvents). (These vva_stestreams and processes <br /> are only conditionally authorized until January 1. 1995, unless extended by the Department.) Treatment is using: <br /> ❑ a. Phase separation, including precipitation. by filtration, centrifugation. or gravity settling. including the use of <br /> demulsifiers and flocculants. <br /> ❑ b. Ion exchange, including metallic replacement, <br /> ❑ C. Reverse osmosis <br /> ❑ d_ Adsorption <br /> ❑ e. pH adjustment of aqueous waste with a pH of between 2.0 and 12.5 <br /> ❑ f. ElectrovAnning of solutions, unless those solutions contain hydrochloric acid <br /> IL NARRATIVE DESCRIPTIONS: Provide a brief description of the specific waste treated and the treatment process used. <br /> 1. SPECIFIC WASTE TYPES TREATED: Aqueous waste containing chromium <br /> TREATMENT PROCESS(ES) USED:Reduction of hexavalent usincr ferrous <br /> sulfate and sodium sulfide filter press stud <br /> III.. RESIDUAL MANAGEMENT: Check Yes or No to each question as it apple �Mthzs treatment unit. <br /> YES NO <br /> ❑ ❑ 1. Do you discharge non-hazardous aqueous waste to a publicly owned treatment works (POTW)/weer? <br /> ❑ ® 2. Do you discharge non-hazardous aqueous waste under an NPDES permit? <br />:. .-- Q ❑ 3. Do you have your residual hazardous waste hauled offsite by a registered hazardous waste hauler? <br /> If you do, where is the waste seat? Check all that apply. <br /> a. Offsite recycling <br /> ❑ b. Thermal treatment <br /> © C. Disposal to land <br /> ❑ d. Further treatment <br /> ❑ 0 4. Do you dispose of non-hazardous solid waste residues at an offsita location? <br /> ❑ 5. Other method of disposal. Specify: <br /> Page 14 <br /> DISC 1772C (1/93) <br />