Onsite Wastewater Treatment System Design (OWTS) & Soil Morphology Evaluations

  • Soil Morphology Testing and Site Evaluations.  DHSS and MDNR Registered Onsite Soil Evaluator
  • Design, layout and permitting of OWTS systems via Missouri Department of Health & Senior Services (DHSS) 19 CSR 20-6.030 on-site sewage systems and county regulatory authorities
  • Conventional, Land Application, Drip Irrigation, Low Pressure Pipe, and Lagoon OWTS Design
  • Decentralized and cluster OWTS
  • Approval for Missouri Department of Natural Resources (MDNR) disposal of wastewater in residential housing developments via 10 CSR 20-6.030
  • Karst geological evaluations for OWTS permit approval

News

  • 2020 MWEA/AWWA Joint Annual Meeting Cancelled

    Unfortunately, due to the increasing COVID-19 infection rate, employer travel restriction, and Read More

  • Pendergrass Joins Gredell Engineering

    Gary Pendergrass, P.E., R.G., recently joined the staff of Gredell Engineering as a Senior Project Read More

  • Gredell Engineering Continues Internship Program During COVID-19

    Chandler Olmsted recently joined the staff of Gredell Engineering as an engineering intern. Chandler Read More

  • Elke Boyd to Present on Water Upgrades at the 2020 MWWC Joint Annual Meeting

    Elke B. Boyd, P.E., BCEE, Senior Civil Engineer with GREDELL Engineering Resources, Inc., will be Read More

  • Elke Boyd Presented on Wastewater Irrigation at MRWA Northeast Training Day

    Elke B. Boyd, P.E., BCEE, Senior Civil Engineer with GREDELL Engineering Resources, Inc., presented Read More

  • Abra Spisso Joins Gredell Engineering

    Abra Spisso, recently joined the staff of GREDELL Engineering Resources, Inc. (Gredell Engineering) Read More

  • City of Lanagan Obtains Grant Funding for Water System Upgrades

    “Access to clean, safe drinking water and reliable, modern wastewater treatment is a necessity Read More

  • Staff Attend MWCC Conference

    GREDELL Engineering Resources, Inc. staff recently attended the 2019 Missouri Waste Control Read More