Comment submitted by Heartland Water Technology Inc.

Summary: Heartland Water Technology, Inc., a wastewater treatment technology company, supports the EPA's preferred Option 1 for unmanaged combustion residual leachate (CRL) due to its site-specific flexibility. They advocate for a phased implementation framework through 2034 to provide regulatory certainty and recommend recognizing direct-contact thermal evaporation as a practical treatment option for captured CRL.