TOXINS DETECTED IN WELLS NEAR LAB BOEING: PERCHLORATE NOT FROM ROCKET SITE.Byline: Kerry Cavanaugh Staff Writer Officials said Friday that they have found more perchlorate perchlorate: see chlorate. in the groundwater at the Santa Susana Santa Susana can refer to several places:
Boeing Co., which owns the lab, is required to drill monitoring wells around the lab and take samples to see whether perchlorate has moved off-site. The company maintains that the chemical isn't leaving its property because it is soaked up and trapped in the porous bedrock beneath the surface, but regulators say Boeing has yet to prove that theory. ``Really, the question is: How much of it is being held up in the rock and how much is getting through,'' said Raymond Leclerc, a senior hazardous-substances engineer with the state Department of Toxic Substances Control. Meanwhile, Boeing is preparing to clean up soil from Happy Valley, north of the community of Bell Canyon, where perchlorate levels have reached 3,400 parts per billion, well above the public health goal for water of 6 ppb. The company has already shipped 1,500 cubic yards contaminated contaminated, v 1. made radioactive by the addition of small quantities of radioactive material. 2. made contaminated by adding infective or radiographic materials. 3. an infective surface or object. with metals to disposal sites, and plans to use bacteria to consume the perchlorate in 20,000 cubic yards of soil. Watchdogs have raised concerns that bioremediation bi·o·re·me·di·a·tion n. The use of biological agents, such as bacteria or plants, to remove or neutralize contaminants, as in polluted soil or water. might not work on soil piles as large as the one at Santa Susana and could end up spreading contamination to the bedrock. That bioremediation project has to be approved by the Los Angeles Los Angeles (lôs ăn`jələs, lŏs, ăn`jəlēz'), city (1990 pop. 3,485,398), seat of Los Angeles co., S Calif.; inc. 1850. Regional Water Quality Control Board. DTSC DTSC Department of Toxic Substances Control DTSC DARCOM Technical Steering Committee officials will update the public on the perchlorate investigation and cleanup at the lab Wednesday during a meeting of the Working Group. The Working Group will also hear more about the U.S. Environmental Protection Agency's hazard-ranking system, which is used to list contaminated properties as Superfund sites that require EPA EPA eicosapentaenoic acid. EPA abbr. eicosapentaenoic acid EPA, n.pr See acid, eicosapentaenoic. EPA, n. oversight. Kerry Cavanaugh, (818) 713-3746 kerry.cavanaugh(at)dailynews.com IF YOU GO: The Santa Susana Field Lab Working Group will meet, 6:30-10 p.m. Wednesday at the Simi Valley Cultural Arts Center, 3050 Los Angeles Ave. CAPTION(S): box Box: IF YOU GO (see text) |
|
||||||||||||||||
Printer friendly
Cite/link
Email
Feedback
Reader Opinion