1351 Jefferson Street, Suite 301, Washington, MO 63090,  Main Office: 636.432.5029
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wastewater treatment and collection design

Hillcrest Subdivision Cape Girardeau County Mo

Wastewater treatment is one of the largest engineering challenges facing our country today. Every day billions of gallons of wastewater are generated from homes, businesses, and agriculture that must be treated and processed properly. As wastewater regulations continue to tighten, and energy costs continue to rise, proper engineering design is critical to owning and operating an efficient and compliant system. Wastewater treatment is at the core of 21 Design Group's knowledge. Our team members have many years of experience working on numerous projects involving wastewater treatment facilities and collection systems. We consider ourselves a leader in our region when it comes to wastewater treatment engineering and design.

Wastewater Treatment Pettis County Mo



Wastewater Treatment
     Wastewater Collection System
New Wastewater Treatment Facility Design   New Collection System Design

Existing Wastewater Treatment Facility Upgrades/Retrofits

  New Lift Station Design
    New Low Pressure System Design

Existing Collection System Rehabilitation


 Sanitary Manholes and Wastewater Collection

Wastewater Treatment and Collection System Evaluation and Planning

Analyze and assess existing collection systems
Analyze and assess existing treatment facilities
Static and GIS mapping
Multi-year project planning
Long term future needs projections
Project Cost Estimates
Inflow & Infiltration Studies


 Moving Bed Biofilm Reactor and Wastewater Treatment





Sewer Grants 

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