Document VJ07EjojMdRaXDVdoDy9YzOkg

" pT Er Michael A. Santoro DV I Th ed ~ 07/03/2001 04:52 PM comp I oE L HihopCB rre esRtiE eE nEipie vTie ag itan tcCoornent To: Fred J. Palensky/US-Corporate!3M/US@3M-Corporate Jerry L. WalkedUS-Corporate/3M/US@3M-Corporate cccc:: BBrriiaann HH.. DDavaisv/LiAs-/LLegAal-L3eMgUalSl3@M3/UMS-@C3oMr-pCoorrpoartatee Dean D. Dworak/US-Corporatel3MIUS@3M-Corporate Mark A. GaetzlUS-Corporatel3MIUS@3M-Corporate Fred J. Luden/US-Corporate/3M/US@3M-Corporate Jeffrey H. MandellUS-Corporate/3MlUS@3M-Corporate Michael A. NashlLA-Legall3MIUS@3M-Corporate Robert A. Paschke/US-Corporate/3M/US@3M-Corporate Richard H. RennedUS-Corporate/3M/US@3M-Corporate Subject: Cottage Grove Wells TL There was a meeting today to discuss the recent findings of fluorochemicals in the wells at the Cottage Totem Grove site. The results of that meeting follow: ements 1. Presence of FC's titeernegts feo rut tts 0 phnthr sopy b0e8JTFCC TToss s Well water samples from four wells at the plant have shown varying levels of FC's. The highest levels en i vic ely Seen hae dr. he i were found in Well No. 5, which is located very near the fire training Site atthe plant. The levels of PFOS Eonweve Ses vt ey oe Eoory seni and PFOA do exceed the drinking water health advisory level for these compounds, but at the levels Bn Te eam ee found, do not pose an imminent risk. The wells have been re-sampled and analysis is underway to verify en Erbee el a he eg the results. In addition, tap water itself will be analyzed to determine the effect of any mixing of the water from the 4 wells. ( We need to validate the PFOA advisory as this was not calculated by 3M.) A, 2. Exposure and health considerations mercte tatgsa t dT eg bR e Tre OrEyS About 80% of the plant is using bottled water for drinking. This has been the case since about the mgs Te dor ble oi Slrnll hcl mid-1980's. The well water is used for food preparation in the main cafeteria, and likely in other of the hfs Ses Cot ve te oCn r DL ONES satellite food service areas. Given the relatively low concentrations in the water, and low exposure potential, there is no reason at this time totake immediate action relative to ceasing use of the water in the LE areas it is being used. rrm------------ 3. Ground water investigation n ginger omT en em pen pe Tonm e gr eaRE A plan is being developed to determine the potential movement of the groundwater to the north at the SoC otSo Tol sl es io Cottage Grove city treatment plant site. There is a well water supply at this location and we need to verify ho be iin that this well has not been impacted. This .will be done through site assessment and possible installation of additional monitoring wells. It is important to note that the pumping of the on-site wells does act to contain rr any on-site residuals because of the significant draw-down of gtoLmdWater. Rerrantan 4. Reporting and Communications ner ernerliica h se foes2 tTes We are verifying that 8e reporting will not likely be required, because the finding is for a relatively localized Sh pr we ee piMee erro area, and thus would not constitute widespread distribution or presence. At some point 3M will need to ee Co paras inform the Minnesota Pollution Control Agency of the finding as part of the ongoing facility assessment., There is also a need to develop a strategy for plant site communications. eno 5. Next Steps ihe A LAS -- The plan moving forward is to re-sampleand analyze the well water, including Wells No. 2, 3, 4, 5, and ST6, and tap drinking water. (UndenNay) .... ' ere a Sat SOE -- Establish an investigation strategy to understand the movement of groundwater and to assure that there is on-site containment. Exhibit Made Available by 3M for Inspection and Copying as Confidential Information: Subject to Protective Order In Palmer v. 3M, No. C2-04-6309 22557777..00000011 3MA00348418 erly the reporting obligations under TSCA ge. -- Verify the reporting obligations under TSCA 8e. Begin to develop a communications plan for the Catage Grove st. -- Begin to develop a communications plan for the Cottage Grove site. -- Determine the basi for thePFOA drinking water advisory. -- Determine the basis for the PFOA drinking water advisory. , AA`anmmdeeceehtatiirnnaggctwweiirlllibzbeee hhheeellddpoddtuuerrniintngagtlthhiemepwwaecetee,kkifooaffnJJyuu,llyyof11F66Ctt'oosrrieonvvtiiehowewwttehhleolrrweeapptoeeraa,ltaaInfnanalelyycsseesesss,a,raayss,ssaeesslssaeenxxpptooosspuurroreevippdooettetenhntetiiaall lpapranlaendsntetcnwwhtialittryhhabcaatenneoorutitzshheeeedrrthssfeoooruuprhroccuteeemnooatffinaddlcrriiiomnnnkkpsiinaungcmgtp,wwiaiaoftntaee.nrrymm, aoayfy be necessary or the areas in which the well FC's in the well water. If necessary, a plan to be necessary for the areas in which the well water is provide water is the presently be used for human consumption. PPlleeaassee ccoonnttaacctt mmae wwiitthh aannyy questso questions or if ifn you you need need addtional additional information information atthis at this tm.time. MMiikkee MSMuaabddjeeecAAtvvtaaoiillPaarbbollteeecbbtyyiv33eMMOrffodorerrIInnIssnppePeccattliioomnneaavrnn.dd3CCMo,oppyNyoii.nnggC2aa.ss0C4Co-on6nf3if0idd9ee.nntitiaall IInnffoorrmmaattiioonn:: Subject to Protective Order In Palmer v. 3M, No. C2-04-6309 22557777..00000022 3MMA0A000334488441199