Contact Information

  • Company: Acorn Onsite, Inc.
  • Phone: 925-447-5200
  • Fax: 925-447-0919
  • Website:
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Specialties & Experience

General Specialties: Environmental and Civil Engineering

Specialty Focus: Septic systems, septic tank, leach fields, onsite wastewater treatment system, onsite wastewater, wastewater disposal, advanced wastewater treatment, engineering, construction, installation

Education: BS Civil Engineering , SJSU

Years in Practice: 30+

Additional Information

Acorn Onsite, Inc.’s Civil Engineer Mr. Tim Johnston, PE is actively seeking opportunity to share his extensive septic system knowledge with others on complex litigation related to onsite wastewater. His primary role is working in industry solving septic system and onsite wastewater projects. Mr. Johnston has been involved with thousands of septic system related projects over the course of his 30+ year career. He has actively worked at all stages and levels of septic system projects including: preliminary feasibility determination, soil observation & testing, engineering design, permitting, installation & construction, maintenance & pumping, inspections, problem deficiency diagnostics, and all other matters. He has used his expertise on projects such as individual dwelling septic systems, commercial projects, industrial facilities, wineries, and event centers. Mr. Johnston takes pride in his ability to effectively communicate with all project parties. Mr. Johnston is a Registered Civil Engineer and qualifier for the company's construction contractors license in California. Most of his involvement in industry has been within California. Although his primary industry experience is in his home state, he is seeking opportunity to assist on litigation in all geographies.