pages: AlamedaReuseandRedevelopmentAuthority/2011-11-02.pdf, 4
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AlamedaReuseandRedevelopmentAuthority | 2011-11-02 | 4 | Response to Comments on Status Update for the ARRA Alameda Reuse and Redevelopment Authority Meeting - November 2, 2011 Time Comment Marker Response remediation. However, the cleanup is going on for much contamination. The remediation of many Alameda Point longer than that. For example, the RAB had a presentation groundwater contamination sites follows two principal on one site (groundwater at OU-2B), where the cleanup was steps. The first is an initial phase, during which the going to take 22 to 35 years, and there'll be severe contamination, especially the source area, is treated, for restrictions on the use of that site. example by injection of chemicals or by heating. The second phase typically consists of periodic groundwater (Full Comment: Cleanup as defined in the presentation, as I sampling to monitor progress of natural processes in further read it or I hear it, means the active remediation done by the reducing contamination concentrations. The first phase often military, meaning trucks and things are out there. Scoops are takes three years or less. The second phase lasts until clean- digging up dirt. Otherwise the cleanup is going on for much up goals are reached. The commenter is correct in that the longer than that. We had a presentation on one site two second phase can last for several decades, as in the example months ago where the cleanup was going to take 22 to 35 of Operable Unit 2B (OU-2B). years, and there'll be severe restrictions on the use of that site. So bear that in mind.) During the second phase, land-use restrictions may be applied to protect monitoring wells and to prevent use of the groundwater. Depending on the type of groundwater contamination, land-use restrictions may also require that building designs include vapor barriers, special ventilation, etc. to safeguard public health. Land-use restrictions during the second phase typically do not preclude most uses of the site. Thus, "severe restrictions" on land use typically apply only to the first few years of cleanup. 35:44 Quite a bit of money is spent on cleanup using innovative CERCLA requires that clean-up decision making evaluate technologies. But the Navy is using experimental the extent to which each remedial alterative under technologies, which eventually don't work, and cost a lot of consideration reduces the amount, toxicity, or mobility of money, so the Navy is able to make presentations to contaminants through treatment. This statutory preference scientific boards. implies that innovative technologies sometimes will be selected as the preferred clean-up alternative. (Full Comment: One of the RAB's concerns has been that there has been quite a bit of money spent on cleanup using Sometimes it is unclear whether a promising emerging innovative technologies. But they' re using experimental technology will be effective under conditions found at Page 2 of 2 November 7, 2011 | AlamedaReuseandRedevelopmentAuthority/2011-11-02.pdf |