Harper Houf Peterson Righellis Inc.

Environmental/Natural Resources

Environmental and natural resources is a multi-disciplinary practice which provides assessment of natural resource conditions in order to preserve, protect, or enhance them; and to incorporate their values into a built environment. Our team of landscape architects, planners, and engineers bring extensive experience evaluating existing environmental conditions to provide a basis for design and potential regulatory requirements. Our collaborative approach to environmental resources benefits the resources, the client, the design process, and provides long-term value to the environment and society.

HHPR provides a broad range of environmental and natural resource consulting services including:

  • DEQ Underground Injection System Permitting
  • DEQ 1200 C Permitting and Processing
  • Level 1 Environmental Assessment (Hazmat)
  • Wetland Delineation and Permitting
  • Natural Resource Assessment
  • NEPA and SEPA Checklists
  • Environmental Analysis Preparation for Federally Funded Work
  • Right-of-Way Reports and Analysis for EIS Work
  • Greenstreet Design Services
  • Scour Analysis
  • Creek Restoration

Sample Project Experience:


Collins Lake Wetland Delineation
Client: Pioneer Investment Group
Location: Government Camp, OR

Hallin Property Mitigation Plan & Wetland permitting
Client: John L. Brosy, AICP
Location: Portland, OR

Leupold Stevens Wetland Mitigation & Natural Assessment
Client: Leupold Stevens Inc.
Location: Salem, OR

Red Soils Wetland Delineation
Client: Clackamas County
Location: Oregon City, OR

SE 172nd (Sunnyside Rd. to OR 212) Environmental Assessment
Client: Clackamas County DTD
Location: Clackamas, OR

Upper Boardman Creek Fish Passage/Trail Crossing
Client: Oak Lodge Sanitary District
Location: Milwaukie, OR

Highland Hills Erosion and Sediment Assessment
Client: Kummer Kaempfer Bonner Renshaw & Ferrario
Location: Mesquite, NV

Delta Park Natural Resources Plan Review
Client: Walker Macy
Location: Portland, OR

Oregon Child Development Coalition - Wetland Delineation
Client: Oregon Child Development Coalition
Location: Odell, OR

Sherwood Elementary School Natural Resource Assessment
Client: Sherwood School District
Location: Sherwood, OR

ACMA Magnate School Natural Resource Assessment
Client: Ankrom Moisan Associated Architects
Location: Beaverton, OR

Dubarko Road/Tickle Creek Wetland mitigation permits and plans
Client: City of Sandy
Location: Sandy, OR