Project Name: Clear Creek Chemical System Improvements (Bid Package 1) and System-wide Flow

Includes projects:

The Clear Creek Combined Sewer Control Facility (CSCF), one of the combined sewer control facilities owned and operated by the City, is located in the West Combined Sewer service area. During large storm events, when the capacity of the tunnels and the West Area Water Quality Control Facility (WQCF) is exceeded, the combined flows enter the Clear Creek CSCF and the combined wastewater is treated through coarse bar screening and fine drum screening, disinfected with sodium hypochlorite (NaOCl) and dechlorinated with sodium bisulfite. The purpose of this project is to upgrade the NaOCl storage tanks, pump and piping system to improve system reliability.  Various improvements to other CSCFs are included in the project. 
 
The scope of this project includes: 

•   Replacing four 16,000gallon fiberglass reinforced plastic NaOCl storage tanks 
•   Replacing all PVC and metallic chemical feed piping and valves 
•   Replacing chemical feed pumps 
•   Repairing concrete and special coatings within Chemical Room and Dosing Vault 
•   Providing system flow monitoring improvements at various facilities 
•   Rebuilding and/or rehabilitating drum screens at Custer Avenue CSCF facility 

 
Justification: 

•   Improves system reliability and reduces compliance risks 
•   Improves general operational efficiency and maintenance 
•   Improves process performance to meet permit requirements

 
 
Project Type: CSO Facilities 
Project Start: 02/28/2013
Proposed Construction Start: Varies
Scheduled Completion: 09/29/2019 
Project Budget: $11,227,000 
Council District(s): 2, 3, 5, 6, 7, 8, 9, 10 
NPU(s): A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, S, T, W 
Project Status: Complete / Construction