Groundwater cleanup plan proposed for SIAD, Herlong
The plan was submitted for public comment and discussed at length at the board’s regular meeting on Wednesday, Sept. 26.
RAB co-chairman Susan Holliday moderated the meeting, which she said was primarily to inform the board of the current cleanup process.
The abandoned landfill, approximately 103 acres in size, was originally used as SIAD’s main disposal area for household wastes from the 1940’s to the 1960’s. The southern sites area’s purpose used to be for chemical and fuel storage, as well as fuel dispensing. It was also used for vehicle maintenance and cleaning. Until 1989, the southern sites area also had underground storage tanks containing chemicals such as solvents, fuels and waste oil.
Since the 1960’s, the groundwater on both areas has become contaminated with Trichloroethylene. According to the Department of Health and Human Services, trichlorethylene is a colorless liquid that is mainly used as a solvent used to clean metal parts. Breathing in small doses can cause headaches, lung irritation, dizziness poor coordination and lack of focus, whereas large doses can be fatal.
The contamination is located about 90 feet below ground level.
According to information provided by Holliday, a pilot study conducted was conducted in 2004 to see test way to reduce the toxicity of the area. According to a presentation given to the board members, three wells were installed in on the landfill and the southern sites area to inject a mixture of molasses and water into the soil.
According to documents provided by SIAD, “The molasses acts as food for the natural microbes that live in the soil. These microbes are helpful and pose no threat to people at (SIAD) or in the community. When food is added for these microbes, their population grows and they consume not just the molasses, but also the contamination in the groundwater beneath the site.”
Holliday said 16 more such wells will be installed over a month long process, and the same injection process will be used to battle the remainder of the contamination.
Holliday said significant progress has been made so far, and anyone who would like to comment on or review the proposed plan can do so until Oct. 31, 2007. Anyone looking for more information on the cleanup progress can contact Francesca D’Onofrio, Department of Toxic Substances Control manager.
D’Onofrio can be reached by telephone at (916)-255-3603 or e-mailed at firstname.lastname@example.org.
Grizzlies look back on football season
Cole McCown, back left, Sam Joseph, Franky Shepherd, Quinn Thompson, Case Bennett, Jace Woginrich, front left, Tyler Clark, Colton Faure, Jake Thomas and Kyle Barnetche were all presented with awards during the Lassen High School varsity football awards ceremony Wednesday, Dec. 4. Photo by Maddie...Read More...
Lassen High wrestling hosts Purple and Gold Scrimmage
The Lassen High School wrestling team held its annual Purple and Gold Scrimmage on Wednesday, Dec. 4 in the Lassen High gym. The wrestling team broke up into two teams, purple and gold, and faced off in a night of wrestling that gave fans a taste of what they can expect in the coming season. Lassen...Read More...
Cougars face tough teams to prepare for a victorious season
TJ McCauley attempts to keep the ball away from a Fresno City College player during the championship basketball game of the El Camino Tournament on Sunday, Nov. 24. The Lassen Community College Cougars have been competing in pre-season tournaments and have earned several wins. Photo by Scott Nordstrom Dec....Read More...