Bowman assisted the County in reviewing and updating their Stormwater Management Ordinance and Design Manual and in the development of a Monitoring and Assessment Plan, Enforcement Response Plan and pollution prevention/good housekeeping procedures.

Bowman provided a PER and Design to replace a trickling filter Wastewater Treatment Plant (WWTP) with a new 200,000 gpd Moving Bed Biological Reactor (MBBR) treatment plant installed inside of the existing concrete treatment tank. Design elements included rehabilitation of the existing influent pump station and existing operations building, a standby generator, and demolition of existing WWTP components. Additional services included surveying and civil design.

Design engineering services for sewer improvement projects located throughout Chicago. Work includes data collec-tion and initial assessments, coordination of survey and geotechnical engineering, utility coordination, sewer align-ments and profiles, structural design, compliance with IEPA water sewer separation requirements, cross sec-tions/typical sections, traffic control and detours, surface drainage design, OUC submittals and approvals, and permitting.

Bowman provided major upgrades to the Town of Broadway’s Water Treatment Plant. The upgrades included the installation of a state of the art 1.8MGD Pall Corp. MF membrane treatment system in a new concrete filtration building, upgraded and automated chemical feed systems, a 100,000-gallon well storage tank, and a 350,000-gallon finished water clear well.

Bowman partnered with English Construction for this Design-Build project for a central wastewater collection, treatment and disposal system to serve the service districts of Catlett and Calverton. The project includes a new collection system consisting of individual Septic Tank Effluent Pump (STEP) systems that transfer wastewater to a 80,000 gpd central wastewater treatment plant utilizing an Integrated Fixed Film Activated Sludge (FAS) technology. Effluent will be disposed of through the use of subsurface drip irrigation drain fields.

Bowman provided planning, surveying and design services to the City of Colonial Heights for the Phase III and IV drainage and utility improvement plans of the Bruce Avenue Drainage Improvements project. This project included approximately 6,500 linear feet of city streets. The scope of the project included complete water, sanitary sewer and storm sewer replacement. The project also involved substantial excavation of the roadways within the ROW limits and rebuilding of new asphalt sections and curb and gutter.

Bowman provided on-call services to Fairfax County’s Stormwater Planning Division. The team provided environmental consulting services, conceptual and final engineering design, and construction phase administration for this stream restoration project. Bowman’s team of environmental scientists performed a wetland delineation and stream mitigation evaluation, and a Water Quality Impact Assessment report and small whorled pogonia survey were prepared.