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CEENAH PAPER INC 3460 Preston Ridge Road LIND Suite 600 Alpharetta,Georgia 30005 JAN 2 1 2000 678-518-3212 ENVIRONMEN'i HEALTH PERMIT/SERVICES January 15, 2009 Todd A. Del Frate Engineering Geologist California Regional Water Quality Control Board (CRWQCB) Central Valley Region 11020 Sun Center Drive#200 Rancho Cordova, CA 95670-6115 Re: Abandonment of Groundwater Monitoring Wells TH-08 and TH-10, Ripon Mill, Neenah Paper Inc., San Joaquin County Dear Mr. Del Frate: I am writing in response to the Oct 15L, 2008 letter sent to J. Kluesener at the Ripon mill regarding recommendations Nestle USA Inc. presented in its 2007 Annual Groundwater Monitoring Report dated 15th March 2008. In specific, I write about the recommendation to abandon groundwater monitoring wells TH-08 and TH-10. As stated in the Oct 1St letter, "the results of Nestle's studies indicate the groundwater is moving vertically through these wells and is allowing contamination associated with Nestle's plum to migrate into lower stratum. This migration of Nestle's plume is thought to be contributing to TCE impacts in several domestic wells that are located south of the Stanislaus River". The source of the contaminant of concern, TCE (Trichloroethylene) is not related to past or present operations of Neenah Paper's Ripon mill. Subsequent to the Oct 15' letter, Environmental Cost Management Inc. issued a letter on Nestle's behalf, to your attention on Dec 22nd, 2008 in which Nestle states, "Monitoring wells TH-08 and TH-10 are located on Neenah Paper Inc. property and are thought to serve as a conduit for groundwater contamination in the vicinity'. Neenah Paper would like to point out that the wells TH-08 and TH-10, referenced in the above communications are not located on property owned by Neenah Paper. The City of Ripon owns the property that TH-08 is located on and previously owned the property that well TH-10 is on (ownership was transferred to another entity).