Title
Annual Update on the Wastewater System
Body
Overview
The DPU wastewater operations comprises two different divisions of operations:
1) Wastewater collections (WWC [GWS])
2) Wastewater treatment & reclamation (WWT)
The GWS-WWC crew allocates two to four crew members to perform scheduled O&M work, such as mainline flushing and lift station maintenance. The GWS/WP electricians (2) also perform support work on the lift stations, as they require considerable electrical work. There are twenty-six lift stations in the WWC system with varying electrical service sizes, depending on the power of the pumps. There are currently three 480V lift stations, and twenty-two 240V or 277V lift stations.
The GWS crew operates various equipment to maintain the WWC system:
• Inspection tools - SL-RAT sonic wave detector and in-pipe video cameras for both mainline & service line applications
• Flushing tools - vactor trucks/equipment, flushing trailer equipment, “easement machine” flushing equipment for very tight access areas
• Root cutters (mainline and service)
A new chemical treatment method has been researched and instituted on the wastewater collections system. Problem areas prone to grease and septic grit deposits, as well as all of the lift stations (some require frequent treatment) are being treated with chemical agents designed to break down problematic components in wastewater that can cause catastrophic deposits (clogs). For more information on the chemical solvent treatment, see: https://www.marc1.com/marc-76-x-treme-sewer-solvent.html.
The WWT operations division oversees the operation and maintenance of the two treatment plants in Los Alamos County - LA WWTP and the new WR WRRF. The LA WWTP processes (treats) approximately 0.8 M gallons per day and produces approximately 300 lbs. of solids per day, while the WR WRRF processes approximate...
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