Aspen managed the preparation of the Ormond Beach Wetlands Restoration Feasibility Plan for the California State Coastal Conservancy.

Heavy rains and high flows in the Arroyo Las Posas, near Moorpark, California, eroded away an approximately 500 foot section of the northern bank of the Arroyo in the winter of 2005.

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.