Aspen prepared an Environmental Impact Report and Environmental Impact Statement (EIR/EIS) on behalf of the California Public Utilities Commission (CPUC) and the Bureau of Land Management (BLM) for the SCE West of Devers (WOD) Upgrade Project.

The Devers–Palo Verde No. 2 Transmission Line Project is a 230-mile, 500-kilivolt (kV) electric transmission line routed between Devers Substation in California and Harquahala Generating Substation in Arizona, as well as 41.6 miles of new 500-kV transmission line routed between the Devers Substation and the Valley Substation in the Romoland area of Riverside County.

Under Contract to the California Public Utilities Commission (CPUC), Aspen prepared an Initial Study and Mitigated Negative Declaration (IS/MND) for Southern California Edison’s (SCE) proposed Downs Substation Expansion Project.

Aspen managed the preparation of an EIR/EIS for the highly controversial 150-mile high-voltage Sunrise Powerlink Transmission Project, under the direction of the BLM (El Centro Field Office) and CPUC.

Aspen prepared two major environmental documents, an EIR and EIS/SEIR, evaluating a proposed crude oil pipeline in southern California.

Aspen prepared an EIR for the Santa Barbara County Energy Division on the proposed Plains Exploration and Production Company (PXP) Tranquillon Ridge Project which would involve the development of oil and gas wells from Platform Irene into the Tranquillon Ridge Field located in State waters using extending reach drilling technology.

The Tehachapi Renewable Transmission Project (TRTP) involves construction of a series of transmission system improvements extending from the Tehachapi Wind Resource Area in eastern Kern County to the Los Angeles Basin.

Level 3 Communications proposed to construct an extensive 2,000-mile fiber optic network throughout California to address increasing demand for broadband access.

Aspen was selected by the California Public Utilities Commission (CPUC) to undertake the CEQA environmental review for two applications for Certificates of Public Convenience and Necessity filed by Southern California Water Company (SCWC).