CCR RULE COMPLIANCE
Data and Information
Alliant Energy's CCR Rule Compliance Data and Information
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Columbia
Surface Impoundment
Closure/Post-Closure Care
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Notification of Intent to Close Primary Pond
EPA Response to Request to Withdraw - Application for Site-Specific Alternative Closure Deadline - April 2023
Request to Withdraw - Application for Site-Specific Alternative Closure Deadline - March 2023
Application for Site-Specific Alternative Deadline - December 2022
Extension Application Update - October 2022
Extension Application - Request for Additional Information - February 2022
Extension Application - Completeness Determination
Notification of Intent to Close Secondary Pond
Application for Site-Specific Alternative Deadline - November 2020
Written Closure Plan - 2020 Revision
Alternative Closure Annual Progress Report - 2020
Notification of Intent to Comply with the Alternative Closure Requirements
Notification of Intent to Close Primary Ash Pond
Written Post-Closure Plan
Written Closure Plan
Notification of Intent to Close Secondary Pond