WHB Engineers completed the design of the new Well No. 13 Chlorine Storage Building for the City of Huntington Beach. Access on this site was constrained with two large potable water reservoirs; one 17MG capacity and a smaller 9MG reservoir. 

In addition, three groundwater production wells were located onsite.  The existing chlorine storage building was designed to store four 150-pound chlorine containers.

WHB Engineers designed the new chlorine storage building, including all associated electrical, instrumentation and control system components. 

The new building facility was upgraded to store two 1-ton chlorine storage cylinders, incorporating TGO system components to meet Uniform Fire Code requirements for full containment.  The new one-ton chlorine storage cylinders required the design of a monorail-mounted crane for support. 

WHB Engineers team designed seismic upgrades and seismic monitoring using SCADA that would automatically shut down the chlorine system in the event of a 4.0 or greater seismic event.

The design upgrades increased facility safety and reduced the risk of chlorine exposure to workers and residents by implementing zero release and passive mitigation technologies, rendering scrubbers unnecessary.  The new system prevents the generation of hazardous waste and reduces the cost of ongoing O&M.

WHB Engineers served as the Engineer of Record for the utility replacement for the City of Oceanside’s Municipal Pier.  WHB Engineers conducted an initial study for the City to determine the feasibility for replacing potable/firewater and electrical systems due to operation issues the City was experiencing with the water system. 

In addition, WHB Engineers was responsible for plan preparation of the replacement of the existing combined domestic/firewater pipes and the replacement for the pier’s sewer force main and three sewer sump systems. 

This project also consisted of electrical upgrades, a new handrail, and refurbishment and upgrades to structural components.  WHB Engineers developed contract documents, including basis of design reports, plans, specifications, calculations, and cost estimates.

WHB Engineers operating company, conducted a seismic assessment for the City of Redlands. The City of Redlands selected Brady to complete a seismic assessment of eighteen (18) of the City’s potable water storage reservoirs, seven (7) pump stations, and two (2) transmission mains for the Water Division.

The work involved a study of existing interior and exterior conditions, a seismic code assessment, recommended improvements, a hydraulic analysis of the entire system with an eye on reservoir consolidation opportunities, and a budget level cost.

WHB Engineers performed structural analyses on concrete, steel, and prestressed reservoirs. The City of Redland lies between the San Andreas and San Jacinto faults. All analyses were conducted with site-specific seismic reports and considered the current and anticipated forthcoming (ASCE 7-22) requirements of the seismic code. 

WHB Engineers provided recommendations of reservoir replacements and upgrades. To save considerable time and expense for the City, each reservoir was studied using WHB Engineers underwater drone. Interior roof inspections were completed via an inflatable boat. WHB Engineers provided confined space entry support with WHB Engineers staff. 

The project included the assessment of pipe transmission mains critical to the treatment plant influent. These critical pipelines were observed to have structural and seismic vulnerabilities. Recommendations were made to assure that safe, reliable water can be supplied to the City’s water treatment plants.