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.

Aspen prepared the Initial Study/Mitigated Negative Declaration and technical reports (Biological Resources Technical Report and Wetland Delineation) for the Elder Creek project.

Aspen assisted the San Bernardino County Department of Public Works with the preparation of a CEQA (MND) document for a bridge replacement at the Dola Ditch, located on the San Bernardino County maintained National Trails Highway, known as California U.S. Highway 66/National Trails Highway, and traditionally known as Route 66.

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.

San Bernardino County Land Use Services Department has used its RECPG funds to prepare a Renewable Energy and Conservation Element for its General Plan.

Aspen prepared a Mitigated Negative Declaration for the replacement of the existing Sacramento Mountain tele­com­munications facility with a new enhanced radio communications system at Sawtooth Ridge located 12 miles south-southwest of Needles, California.

The Rimforest community is situated in the vicinity of the headwaters of Strawberry Creek. For at least the last thirty years, this community has been experiencing severe erosion and land sliding resulting in significant property loss.

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.

Aspen has been assisting San Bernardino County with the restoration of Sheep Creek .The restoration site is located on the north slope of the San Gabriel Mountains near the community of Wrightwood in San Bernardino County.