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Timothy Petz





Western Slope (Aspen / Glenwood Springs)


Contact:  Carla Ostberg

33 Four Wheel Drive Road

Carbondale, CO 81623

Office:  970.704.0484 

Cell: 970.309.5259



Front Range


Contact:  Annette Popish

5333 Julian Street

Denver, CO 80221

Office/Cell:  303.437.1027 


Over 15 years of experience in onsite wastewater treatment system (OWTS), also known as sepitc system, designs makes     ALL SERVICE septic, LLC the right choice for your OWTS design. Our design team offers knowledge in geology, engineering, and drafting which provides a comprehensive view of each site and design element.                   
 Our team maintains excellent working relationships with county officials and licensed contractors (excavators).   The ALL SERVICE septic, LLC team participated in the recent stakeholder process for the adoption of Regulation 43.  We have also working with counties in their adoption process.
ALL SERVICE septic, LLC provides excellent professional service,  taking the time to listen to your specific needs, evaluating the alternatives, and providing the most cost effective solution.  

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 We are proud members of:
Association of Engineering Geologists (AEG)
Colorado Environmental Health Association (CEHA)
Colorado Professionals in Onsite Wastewater (CPOW)
National Association of Wastewater Transporters (NAWT)


Complete Onsite Wastewater Treatment System (OWTS) Design Services

  • Site Specific Evaluation
  • Subsurface (Soils) Investigation 
  • Drafting
  • Installation Observation and Documentation