Belle Isle Pump Station and CSO Improvements DWSD CS-1363
Conner Creek Pilot CSO DWSD CS-1284
Sigma offers extensive experience in the analysis, study, and design of storm water system, as well as, combined and sanitary sewer overflows and control facilities.
Our expertise includes the design and needs analysis of various processes and configurations of enclosed storm drains, open channels, and culverts; detention basins; screening conveyors and mechanically cleaned bar screens and associated influent channels; process, mechanical, and sampling piping; dewatering and flushing gate systems; sodium hypochlorite storage, feed, and mixing systems; and odor control, heating, and ventilating schemes.
NPDES Permit Negotiation and Feasibility Study
Project Plan and Basis of Design
Flow Monitoring, Hydraulic Modeling, and SSES Study
Alternative and Monetary Analyses
State SRF Funding
Disinfection and Odor Control Systems
Complete Design of Storm Water and CSO Facilities
Construction Documents and Specifications
Construction Management
SSO Analysis and Permit Negotiation
Footing Drains Disconnection Program and Analysis
CMOM (Capacity, Management, Operation and Maintenance) Analysis