Posted by: glue | June 17, 2008

Plan: Superfund Remedies

Ground Stains

“The 1990 Record of Decision (ROD) for the Cabot Carbon/Koppers site specified a remedy addressing soil and groundwater contamination. The remedy specified for the Cabot Carbon portion consisted of the installation of a groundwater trench to intercept contaminated groundwater from the upper surficial aquifer and discharge to the publicly-owned treatment works (POTW). This remedy was implemented in 1995, and groundwater monitoring has been continuing quarterly. Also specified in the ROD was additional soil sampling at the former Cabot wastewater lagoon area and the northeast “wetland lagoon area” near North Main Street. The ROD specified remediation of these areas, if necessary.

In the 1990 ROD, the remedy for the Koppers portion included excavation and treatment of contaminated unsaturated soil, soil backfilling, and installation of a groundwater pump and treat system in the surficial aquifer. The surficial aquifer pump-and-treat system was installed in 1995. During the investigation for the remedial design, a greater extent of soil contamination, than originally estimated, was found. The depth and levels of contamination were greater than previously determined from the pre-ROD investigations. This larger extent of contamination necessitated re-evaluation of the remediation strategy and technologies because treatability studies showed that the selected remedy could not reach the soil cleanup criteria specified in the ROD.

In 2001, the U.S. Environmental Protection Agency (EPA) proposed a new remedial plan specifying containment, but it was determined to be ineffective and was rescinded. The post- ROD remedial investigations have been continuing at the Koppers portion of the site, particularly because dense non-aqueous phase liquids (DNAPLs) have been found in the deeper aquifers (Hawthorn and Floridan). The 1995 surficial groundwater pump-and-treat system was intended to prevent offsite migration of contaminated groundwater. However, the system of shallow extraction wells situated along the downgradient perimeter of the Koppers site is now believed to be ineffective in preventing offsite migration of contaminated shallow groundwater. Furthermore, the system does not affect contaminated groundwater that may have migrated through the surficial aquifer into the Hawthorn Group and Floridan aquifers.

For many years, the clay in the Upper Hawthorn Group was assumed to be a barrier to downward migration of contamination into the Floridan aquifer. As recently as 2002, this assumption changed. Sampling data from 2003 revealed that contamination was widespread in the Hawthorn Group.”

SECOND FIVE-YEAR REVIEW REPORT
FOR
CABOT CARBON/KOPPERS SUPERFUND SITE,

U.S. Army Corps of Engineers

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Responses

  1. PLANe

    The translator of Deleuze’s Spinoza (Robert Hurley) points out the plurivocity of “plan” in a way that complexifies our experiment with the policy plan as a figure of my existential project (the directedness of my disposition). The meanings cover the English terms “plan,” “plane,” and “map.”

    “This plane of immanence or consistency is a plan, but not in the sense of a mental design, a project, a program; it is a plan in the geometric sense: a section, an intersection, a diagram. Thus, to be in the middle of Spinoza is to be on this modal palne, or rather to install oneself on this plane — which implies a mode of living, a way of life. What is this plane and how does one construct it?” (122)

    “A plane of immanence has no supplementary dimension; the process of composition must be apprehended for itself, through that which it gives, in that which it gives. It is a plan of composition, not a plan of organization or developent. Perhaps colors are indicative of the first type of plan, while music, silences and sounds, belong to this one. Therei is no longer a form, but only relations of velocity between infinitesimal particles of an unformed material. There is no longer a subject, but only individuating affective states of an anonymous force” (128).

    (Deleuze, Spinoza).


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