Tag Archives: Water Treatment

Regional Medical Center Opens New Packaged Treatment Facility

A small packaged wastewater treatment plant designed to serve a regional medical center significantly improved the quality of treated effluent, and was completed under-budget, enabling the medical center to add a connection from the new plant to a nearby elder care center. The Hi-Desert Medical Center (HDMC) and the Joshua Basin Water District (JBWD) jointly

Read More

Pre-Procurement Strategies for Wastewater Projects

Pre-selection, pre-approval, and pre-purchase of equipment and materials are three procurement methods that, when used correctly, can shorten construction schedules, control costs, ensure quality, and reduce the risks of conflicts and claims during construction. Each approach needs to be carefully administered within specific exceptions to California’s Public Contract Code governing competitive bidding practices for public

Read More

How Pre-Procurement Can Overcome Constraints on Wastewater Infrastructure Projects

Dudek engineers successfully administered variations of pre-procurement processes to shorten construction schedules while controlling costs and project risks on three recent wastewater infrastructure projects. Focusing on unique project needs, Dudek used three progressively complex pre-procurement methods: pre-selection, pre-approval, and pre-purchase of equipment and materials. Each approach was carefully administered within specific exceptions to California’s Public

Read More

Carlsbad Desalination Plant Progresses

Construction of the Western Hemisphere’s largest seawater desal facility is expected to start in early 2013 after the San Diego County Water Authority approved the purchase of water produced by the plant. The purchase agreement cleared the way for the sale of bonds to finance the fully permitted project. The plant will produce enough water

Read More

Web-Based GIS Access Streamlines Wastewater Districts’ Operations

Three small California wastewater districts have streamlined workflow using Dudek’s new online GIS Viewer that provides web-based access to the district’s GIS files. “We can now view, query and manage our infrastructure information far more efficiently,” said Chuck Duffy, who serves as general manager for the Rancho Santa Fe, Whispering Palms and Fairbanks Ranch community

Read More

Dudek Helps in Wastewater Siphon Replacement Project

The City of Laguna Beachwas concerned about a siphon section of its primary wastewater transmission main that was constructed of steel pipe. They were also interested in evaluating the serviceability of contiguous fiberglass pipeline sections. The fiberglass pipeline had changed ownership, and records of the material type and fabrication methods were lost. This made it

Read More

Turning Around an At-Risk Treatment Facility

A small wastewater treatment facility facing regulatory fines and inefficient operations took an innovative approach to corrective action that avoided fines and leveraged existing facilities to improve operations. The Los Ranchos Mobile Home Park’s 100,000 gallon per day (gpd) wastewater treatment plant was plagued by constant odor complaints, failing percolation ponds and occasional spills. The

Read More

Rescuing Wastewater Facility Stranded Capacity

Finding “low-hanging fruit” at wastewater facilities to increase capacity and improve operational reliability can pay significant benefit by maintaining service levels without committing to large-scale capital expenditures. “The key is seeking out inexpensive adjustments to current operating facilities that may allow postponing, changing, or eliminating major projects and expenditures,” said Bob Ohlund, PE, Dudek’s vice

Read More

Innovative Design Corrects Sewer Siphon Odors

After receiving resident feedback that its sewers were emitting odors, Orange County Sanitation District (OCSD) launched an investigation into the effectiveness of its sewer siphons’ ventilation. While the Fountain Valley, CA district has a proactive siphon cleaning and maintenance program, the number of odor complaints in the vicinity of siphons indicated they were the problem.

Read More