Water Treatment

East Mission Bay (North) NRP 2A/B Pipeline Project, City of San Diego, California

  • Client

  • Services Provided

    Identification of existing utilities; Technical Specifications; Permitting; Permit Work Plan Development; Scheduling which included: Section 404 Permits, USACE; Stream Alteration Permits, Dept of Fish and Game; San Diego Air Quality; Management District Permit; Regional Water Quality; Control Board Permits; (Section 401 and 402 permits); Coastal Commission Permits; City of San Diego Permits and Approvals; Other Approvals and Permits (Pacific Bell, CalOSHA, CALTRANS, AT&SF Railroad, County Health Department, San Diego Gas & Electric); Permit Applications and Technical Backup which included an Air; Quality Control Plan; Hazardous; Material Management Plan; Engineering and Technical; Reports; Noise Abatement Plan; Risk Management and Prevention

DRC prepared draft specifications, incorporating written directions by the City of San Diego; prepared permit work plans and schedule and permit applications; an air quality control plan; a hazardous material management plan; an engineering and technical report; a noise abatement plan; a risk management and prevention plan; a wetlands mitigation plan; and facilitated other permits.

During the design phase, DRC determined the locations and evaluations of existing public and private utilities, including horizontal and vertical locations of public and private utilities on preliminary, final plan, and profiles. Our team then developed a list of existing utilities that required exact horizontal and vertical locations for final design and from that developed a construction cost estimate for relocating the utilities.

Pipeline design included design development drawings, draft, and final technical memoranda; pipeline hydraulics included design development drawings, calculation draft, and final technical memoranda. DRC was selected to prepare the final design drawings and specifications.

During the design reviews and approval, a QA/QC project plan was developed at 30-, 60-, and 90-percent review phases documenting implementation of the QA/QC plan. Design computation review and coordination checking included a submittal of final design notebooks and internal Technical QA/QC reviews to the city at the 30-, 60-, and 90-percent levels. Operations and Maintenance reviews included memoranda responding to city’s review comments following each submittal review.

DRC produced a Value Engineering (VE) Study at the 30-percent design level in addition to drawings, specifications, and cost estimates and memorandum responding to the VE recommendations.

Construction Cost estimates included the following: deviation and trending submittals, including cost estimates supporting the deviation submittal and/or cost trend submittals; and preparation of 30-percent construction cost estimates for the construction of pipelines and appurtenances, excluding O&M costs. DRC also prepared final pre-bid construction cost estimates for the construction of pipelines and appurtenances, excluding O&M costs.