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Hazardous Waste Determination <br /> Date: 03/31/26 <br /> Observation 1 <br /> Anodal BMC Cleaner Solution <br /> Chemical Description =non-silicate alkaline soak cleaner(liquid) <br /> Waste Composition =5%solution <br /> pH = 10.3 <br /> SDS=provided <br /> 22 CCR66261.24 Review=No chemicals listed <br /> Discharge=50 gal / week <br /> Determination =Non-Hazardous Waste <br /> Spent Frost Solution <br /> Chemical Description =Ammonium Hydrogen Fluoride (powder) <br /> Waste Composition = 8%solution (weight) <br /> pH = 1.5 <br /> SDS=provided <br /> 22 CCR66261.24 Review=No chemicals listed <br /> Discharge=80 gal / every other month <br /> Determination =Corrosive Hazardous Waste <br /> Spent Etch Solution <br /> Chemical Description =Sodium Hydroxide(powder) <br /> Waste Composition = 12.5%solution (volume) <br /> pH = 14 <br /> SDS=provided <br /> 22 CCR66261.24 Review=No chemicals listed <br /> Discharge=80 gal / week <br /> Determination =Corrosive Hazardous Waste <br /> Spent Etch Rinse Solution <br /> Chemical Description = Dilute Etch Solution <br /> Waste Composition 1 %solution (volume) <br /> pH = 13 <br /> SDS=provided <br /> 22 CCR66261.24 Review=No chemicals listed <br /> Discharge=240 gal /week <br /> Determination =Corrosive Hazardous Waste <br />