Specifications include, but are not limited to: REQUIREMENTS: Liquid alum shall be delivered in tank truck quantities of approximately 4,300 gallons. Tank trucks making deliveries shall be equipped with suitable unloading devices and sufficient discharge hose to transfer the alum from the truck to OWASA’s storage tank. Trucks used to deliver liquid alum shall be used only to haul alum products. The supplier shall be responsible for cleanup of any spills resulting form the delivery of or occurring during unloading of this chemical. IMPURITIES: The material shall be free from suspended matter and contain no turbidity visible to the naked eye and such clarity as to permit the reading of flow measuring devices without difficulty. The material shall contain not soluble minerals or organic substances capable of producing injurious effects upon public health. Specifications shall be as follows: Chemical Needed: Aluminum Sulfate Solution, Iron Free Al2O3 total 8.00% to 8.33% basicity 0.05% total iron as Fe2O3 0.30% maximum insoluble 0.05% maximum
