The Reese Group, as a teaming partner to Raimonde Drilling Corp., was contracted by the United States Army Corps of Engineers (USACE) to perform groundwater monitoring activities at the Chicago Underflow Plan (CUP) McCook Reservoir (Reservoir). The reservoir will be utilized to reduce flooding in the Chicago area by providing storage of excess runoff during storms. The Reservoir will contain a mixture of sanitary sewage and storm water, a combined sewer overflow (CSO). The CSO will be conveyed to the Reservoir by the Deep Tunnel flood prevention system until the Stickney Water Reclamation Plant (SWRP) has the capacity to process it post-storm event.
The Reese Group’s scope of work included the preparation of several required USACE plan submittals, including:
- Environmental Protection Plan
- Accident Prevention Plan
- Contractor Quality Control Plan
- Drilling and Installation Work Plan
- Sampling and Analysis Plan
- Quality Assurance Project Plan
The objective of the project was to construct a groundwater monitoring network to fulfill regulatory requirements for environmental monitoring of groundwater quality surrounding the Reservoir. Project tasks included:
- Sampling seven newly installed wells for baseline water quality
- Ensuring the quality of the data generated by implementing a robust quality control program
- Preparation of a documentation report summarizing field activities and results
