Section 30.1103 - Treatment of Corrosive Hazardous Waste in an Elementary Neutralization Unit(1) A generator of aqueous corrosive hazardous waste may conduct elementary neutralization of such waste in an elementary neutralization unit at the site of generation in lieu of the licensing requirements of 310 CMR 30.500 through 30.900 for treatment of corrosive hazardous waste, provided that the generator complies with all provisions in 310 CMR 30.1103 and all applicable generator provisions in 310 CMR 30.0000.(2) No person shall conduct elementary neutralization of any hazardous waste in an elementary neutralization unit without a license, except for corrosive hazardous waste that: (a) prior to treatment is aqueous;(b) is hazardous solely because it exhibits the corrosivity characteristic defined in 310 CMR 30.123(1)(a); and(c) if the waste is listed in 310 CMR 30.131, is listed solely because it exhibits the corrosivity characteristic.(3) Any large or small quantity generator that conducts elementary neutralization of aqueous corrosive hazardous waste in an elementary neutralization unit pursuant to 310 CMR 30.1103 in lieu of obtaining a valid treatment license from the Department shall not neutralize corrosive waste in a manner that:(a) presents a danger to public health, safety, welfare or the environment, including but not limited to generation of toxic vapors or fumes;(b) generates extreme heat or pressure; or(c) damages the structural integrity of the container or tank containing the waste.Amended by Mass Register Issue 1522, eff. 5/24/2024.