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Summary of Items Required with Report of Waste Discharge for carbon addition to groundwater. Introducing any substance into the waters of the State of California, including HRC,requires Waste Discharge Requirements ()ATDRs) adopted by the Regional Board. The applicant must submit a Report of Waste Discharge (ROWD)which characterizes the product to be introduced 02into the aquifer, any breakdown products or byproducts, and describes the proposed project and monitoring progra%. Once we receive a complete ROWD, we will draft WDRs for your review and comment, and schedule the WDRs for the next available Regional Board meeting. The ROWD should be submitted on a Form 200 Application/Report of Waste Discharge General Information Form for Waste Discharge Requirements or NPDES Permit which is enclosed. It is also available on our website at http:\\www.swrcb.ca.gov/rwgcb5 in the `Available Documents' category and `Forms and Permits' subcategory. A fee is required. Items that the applicant should include in a complete characterization of a carbon amendment proposal are the following: • A project description including: • stochiometry for target compounds, • identification of expected intermediate and end products, • justification for quantity of amendment proposed, • assumptions used, • timetable for implementation, • monitoring scope and schedule, • Background geochemistry: • alkalinity, dissolved and total iron, total organic carbon, carbon dioxide, ammonium,nitrate, sulfate, methane, arsenic, chromium • Chemical characterization of amendment(what is in it?) we've got this for HRC • A capture zone analysis demonstrating that the applicant could extract the injected substances and any breakdown products, if necessary, • A contingency plan that identifies a strategy to restore the affected portion of the aquifer to pre-project conditions, a downgradient point of compliance, and trigger value(s) of constituents to implement the contingency plan, • A site map showing location of the injection area in relation to the facility and referenced monitoring wells, and • Any other features of the project that warrant discussion.