Document 55v5GQKKnDNgmQ1Z1Q8BXZXR

om Program Coed Lin Closed Landfill PogProgram Cod andl Closed Landfill Prose Program MPCA and 3M meeting regarding Perfluorochemicals (October 15, 2004) Se Acrmiin fo | Site Activity and Data Goal | Whig Coty oni | Qurtesy Motoring Dis 53provideda vsoT Washington County Landfill, Quarterly Monitoring Data. 3M provide data to evaluate removal LiF Grenwarmonwellsowere fi adcr otofvae t xyi Lake Elmo Ground water monitoring wells Were efficiency and cost of treating extracted Simpl for erorschmicls Api | pou w5r comply ihhe Heh sampled for perfluorochemicals in April ground water to comply with the Health 300kandom Tan 004. The | BaadVee, Acs ih 2004 and confim~ed in June 2004. The ghtconenrofioROnA a 10 | PCAcasi preprng 3 highest concentration of ?FOA was 70 Based Value. Also, coordinate with MPCA consultant preparing a AVE (hemoan | ei dy ofl wnte optics. ug/L at V2 (the most contaminated feasibility study of treatment options. oii wllon i) POS ws monitoring well on site). PFOS was ony fd V2 nh ae vtst only found in V2 in the June event at a Coreen 1191 concentration of I ug/L. PFO was found 1350 cessouth of PFOA was found 1,350 mctcrs south of hel rain? dort welt the fill area in 7 domestic wells at concentrationstat rng om 0.1 0 concentrations that ranged from 0.1 to up mu 2 0.6 ug/L in July 2004. OneTrstment On-site Treatment. PFOwasdoe n June 200 in he PEOA was detected in June i004 in the Tr Ares 13e 14waa nd 51 Treatment Area 1 at 14 ug/L and 91 mers domiirod wt meters downgradient in ground watdr at [Er13 ug/L. |Co omy ipl Est [Seven cls Efti isn | Dts he GosowfiPoFOnA Cass County Maple, East eel, Fg Clow, | etreeong cid hs Fl fr |and PFOS in mie mmcpal vase Bethel, Flying Cloud, son Brn, Kine, |PEONwd PHOS. osu Johnson Brothers, Kummer, Link, wd Wares Lindala, and Waseca. Seven closed landfills both outstate and metro are being sampled this fall for PFOA and PFOS. Determine the distribution of PFOA and PFOS in mixed municipal waste products. Exhibit 1972 State of Minnesota v. 3M Co., ;g Court File No. 27-CV-10-28862 11897722..00000011