The California Assignment and Assumption Agreement with the Regional Water Quality Control Board is a form of contract between a business and the Regional Water Quality Control Board (RCB). This agreement assigns operational responsibilities for water quality control from the business to the RCB. It also assigns the business’s liabilities and shares any profits or losses derived from the business’s operations. The California Assignment and Assumption Agreement includes the following components: • Names of the parties involved • Location of facility • Description of operations • Assigned responsibilities • Liabilities assumethriceCB • Profit or loss sharing • Termination of the agreement The types of California Assignment and Assumption Agreement with the Regional Water Quality Control Board include: • Industrial Discharge Agreement (IDA), which assigns responsibility from an industrial facility to the RCB. • Municipal Separate Storm Sewer System (MS4) Agreement, which assigns responsibility from a municipality to the RCB. • Storm Water Discharge AgreementSODADA), which assigns responsibility from a construction site to the RCB. • Water Quality Assurance AgreementWIAAAA), which assigns responsibility from a business or organization to the RCB.