The Marana Upgrade Project (Project) is proposed by Arizona Electric Power Cooperative (AEPCO) to rebuild the existing Marana Substation within the…
Office of NEPA Policy and Compliance
March 28, 2025
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The Marana Upgrade Project (Project) is proposed by Arizona Electric Power Cooperative (AEPCO) to rebuild the existing Marana Substation within the existing fenced boundaries of the substation and replace existing transmission line structures.