Freese and Nichols was hired by the City of Morganton to provide on-call engineering services for their wastewater treatment plant. As part of these services, Freese and Nichols has provided on-call services under several task authorizations.
The first task authorization included an investigation into exposed biosolids on the plant site. This investigation included groundwater monitoring and geotechnical borings to classify and quantify biosolids throughout the plant site. It also included coordination with DENR on removal options and cost estimates for the selected option.
The second task authorization included preparation bid documents to rehabilitate and replace various equipment across the plant site. The equipment included rehabilitation to both primary clarifiers and replacements of the primary pumps.
The third task order provided services to update their emergency action plan as required for the onsite storage of chlorine gas.
The fourth task order provided emergency services to evaluate short-term options to keep the plant in compliance after the failure of the plant’s secondary treatment process. This included development of bid documents to provide aboveground pipe modifications and aeration improvements.
The fifth task order was a study to develop long-term solutions for conversion of the secondary treatment process, which recommended plant improvements in the order of $10-12 million in construction. It is anticipated that our team will begin the design process for the recommended secondary treatment process conversion in fall 2015.