PARTIAL ABANDONMENT OF GROUNDWATER WELLS: A NON-TREATMENT METHOD TO MITIGATE FOR HIGH ARSENIC LEVELS
Abstract:Arsenic in odorless and tasteless. It enters drinking water supplies from natural deposits in the earth. In 2001, the U.S. Environmental Protection Agency adopted a new law reducing the maximum allowable level of arsenic in drinking water by 80 percent by January 2006. A significant portion of the Antelope Valley's water supply comes from deep wells that contain higher levels of arsenic. Technology from the oil drilling industry was used to abandon and seal off the deep portion of the wells using an inflatable packer to inject microfine cement. Well screens were cleaned and treated to allow high quality shallow water to easily flow into the well. Water quality samples were collected and analyzed and the wells were replaced with new pumps and motors. This successful project resulted in a decrease in arsenic levels of up to 85 percent for a total cost of 608,580. The project's estimated one-time cost avoidance is about 33.6 million with an annual cost avoidance of 2 million.
Document Type: Research Article
Publication date: January 1, 2007
More about this publication?
- Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed. WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access.
- Subscribe to this Title
- Membership Information
- About WEF Proceedings
- WEFTEC Conference Information
- Ingenta Connect is not responsible for the content or availability of external websites