Posts tagged Wastewater Treatment Facility
Flooded areas water recedes, sewage leaks diminish
Sep 21st
Floodwaters recede and wastewater backups diminish; customer assistance needed
City requests customer help to identify localized backups as crews continue to respond
After extensive efforts, the City of Boulder Utilities Division has restored the ability of primary sanitary sewer pipelines to deliver wastewater from neighborhoods to the Wastewater Treatment Facility on 75th Street.
Sewage back-ups have slowed as flood water recedes
These efforts, combined with receding floodwaters, should allow pipes serving neighborhoods to drain and relieve backups into homes and businesses. Flows reaching the wastewater treatment facility have decreased, from an excess of 50 million gallons per day (following the flood event) to 31 million gallons this morning.
While flows still remain at approximately two times the normal rate for this time of year, the change reflects a significant decrease in the amount of groundwater and floodwater entering the wastewater collection system and has allowed crews to access key pipelines to remove dirt and debris.
Given the extent of major flooding, it is likely that numerous blockages and damaged pipes impacting smaller areas remain. In order to allow those issues to be addressed more efficiently, the city is requesting that residents and businesses who are still experiencing backups contact the Public Works Call Center at 303-413-7100 as soon as possible. Updated information from customers will help crews more quickly locate and resolve issues in the city’s more than 355 miles of pipe and approximately 9,200 manholes.
The Public Works Call Center is open Monday through Friday, from 7 a.m. to 7 p.m. If the public need remains, the city will extend call center hours over the weekend to be open from 9 a.m. to 4 p.m. on Saturday and Sunday.
For complete flood response and recovery information, visit www.bouldefloodinfo.net. Residents may also sign up to get flood updates right to their email inbox.
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Boulder using new ultraviolet light technology to safely treat wastewater
Dec 7th
The City of Boulder is making significant improvements to key wastewater treatment processes at the municipal Wastewater Treatment Facility, improving safety and reliability. A new ultraviolet light disinfection system is scheduled to begin disinfecting the community’s wastewater on Monday, Dec. 10.
The new ultraviolet (UV) light disinfection system will replace the existing chlorine gas and sulfur dioxide gas systems, which have been in use since 1990 and pose a significant safety risk. The new technology is more efficient and eliminates the need to store and use hazardous gases. The UV light is a highly effective disinfectant for bacteria, viruses and protozoa.
“The new UV disinfection system is a major milestone for the facility and demonstrates the city’s commitment to continuous operational improvements that meet evolving community and regulatory needs,” said Director of Public Works for Utilities Jeff Arthur.
The Wastewater Treatment Facility improvements also include mechanical and electrical upgrades to the wastewater digester complex and headworks facility. The improvements are funded by a $9.2 million revenue bond and are expected to reduce long-term operating costs. Construction began in July 2011 and is currently on schedule to be completed in March 2013.
Wastewater from the community’s sanitary sewer systems is collected at the Wastewater Treatment Facility, where it is sent through a 20-hour, multi-stage treatment process. The facility treats an average of 12.5 million gallons of wastewater per day. In September 2012, the city’s Wastewater Treatment Facility received a Plant Performance Award from the Rocky Mountain Water Environment Association (RMWEA) in recognition of the facility’s commitment to outstanding maintenance, operations and public relations.
For more information about the Wastewater Treatment Facility improvements or to schedule a group tour, contact Wastewater Treatment Coordinator Chris Douville at 303-413-7341.
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