Natural Resources

Our Natural Resource Division is listed as "Qualified Consultants" for on-call environmental services with several agencies, including:

• Pima County Department of Transportation and Flood Control District,

• Pima County Wastewater Management Department,

• Pima County Development Services, and

• Maricopa County.

Recent work has included Habitat Evaluations for federally protected species such as Cactus ferruginous pygmy-owl (CFPO), lesser long-nosed bats, and pima pineapple cactus (PPC).

The Harris Environmental team has conducted numerous Habitat Evaluations for Pima County’s 55 Priority Vulnerable Species, and numerous intersection improvement projects have prompted Species-Specific Surveys for wildlife such as the CFPO and plants such as the PPC.

Our team also is accustomed to working on environmental studies in urban areas; urban projects have included:

• Invasive Plant Species surveys for the Catalina Highway Bike Lane project,

• Native Plant Preservation Plan studies for the Tanque Verde/Houghton sewer line,

• Interim Habitat Mitigation Plan for the Thornydale Road widening project, and

• Section 7 Consultation and Biological Assessment for the Green Valley Performing Arts Center.

We have also been active in Jurisdictional Wash Delineations and we recently conducted such a project along portions of Interstate 19.

Our team has an active research focus and has been contracted by Pima County to conduct reviews of environmental documents for the Sonoran Desert Conservation Plan and a Conservation Review and Evaluation of an environmentally sensitive floodplain and riparian area (Black Wash) for inclusion in a revised Floodplain Management Plan.

We also have extensive experience in the western desert of Arizona, having conducted longitudinal studies on the Sonoran pronghorn in the Barry M. Goldwater Range. Our experience with military installations has provided us with an advantage in providing compliance services for our local clients designing projects with federal regulatory triggers. Luke Air Force Base sponsored these studies for several years and found our team to be uniquely helpful in the identification and analysis of the pronghorn population.

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