Project : Town of Christiansburg WWTF Upgrade/Expansion to 6.0 MGD

Town of Christiansburg -- Christiansburg, VIrginia

Since the early 1980s, CHA has been providing engineering services for the Town of Christiansburg’s Wastewater Treatment Facility (WWTF). A summary of the projects performed for the Town included:

  • Upgrade and expansion to 3.0 MGD
  • Outfall line and effluent pump station
  • Upgrade and expansion to 4.0 MGD
  • Biological Nutrient Removal
  • UV disinfection system
  • 1.6 MG Crom equalization basin
  • Wet weather flow analysis and implementation
  • Capital improvement plan development and implementation
  • VPDES permit applications
  • Various regulatory tasks including SWPP, RMP, and PSMP
  • On-call operation and regulatory assistance
  • Bioassay
  • Biosolids management

In addition to this work in the last five years, CHA has assisted the Town of Christiansburg in implementing a capital improvement plan to upgrade their WWTF to a treatment capacity of 6.0 MGD. The improvements included:

  • New fine screen and compactor in the existing headworks
  • Odor control on the primary sludge holding tank
  • Wet weather influent pump station to increase the peak pumping capacity to 15 MGD
  • Anaerobic digester heating and mixing in primary and secondary digesters
  • Conversion to BNR, MLE process primarily for alkalinity recovery
  • Assistance with generator design to replace existing 30-year old generator
Services Provided by CHA:
  • Wastewater Treatment Plant Preliminary Engineering Report
  • Design
  • Bidding
  • Construction Administration
  • Resident Project Representation
  • Inflow and Infiltration (I&I) Study
  • Hydraulic Model