Document 914dRyQ59g8gQn61Db3XXn7qD

AR226-2352 W "ss^S^ MONITORING PROPOSAL FOR FLUOROPOLYMER MANUFACTURING SITES PRESENTATION TO THE FLUOROPOLYMER TECHNICAL WORKGROUP s "o 0 0 0 ro January 15,2004 M 09 AGENDA Introduction Proposal on Monitoring Site Specific Monitoring Plans Decatur, AL 3M and Dyneon Parkersburg, WV Summary Recommendation for Path Forward Daikin Monitoring Plan INTRODUCTION Industry Commitment to Site Monitoring Importance of Addressing Data Needs Suggestion of a Tiered or Phased Approach ...-7 INTRODUCTION (continued) Value of a Tiered or Phased Approach Science-based (first phases inform later ph More effective More timely Contextual Data Collection Incorporates All Monitoring Commitments Program to have Transparency S Data Review, Informed Decision Making, -0 0 0 Technical Expert Collaboration 0 1M LO e?:^-::ai:$:'^?if PROPOSAL ON MONITORING Tiered or Phased Approach Focus on Two Locations, Two Sites Decatur, AL 3M & Dyneon Parkersburg, WV DuPont Phases of the Comprehensive Monitoring Program Phase I - LOI Commitments, Historic/Ongoing Monitoring Activities Phase II - Additional Monitoring Proposal (Dec. 2003) Consideration of Peer Consultation for Assessment of D Inform Decisions for Phase III Monitoring Plans Phase III - Additional Monitoring \^^ SITE SPECIFIC MONITORING PLANS Decatur, AL - 3M & Dyneon Parkersburg, WV - DuPont DECATUR, AL - 3M & DYNEON SITE DESCRIPTION 900 Acre Site in a Rural Area A Number of Industrial Complexes in the Vicinity River Width in Vicinity ~ 3-4 miles Distance to the City of Decatur ~ 4 miles Groundwater Flow well Characterized in Northern part o No private Wells within At least 1.5 Miles of the Site On-Site Wildlife Habitat Area on 3M Property j - Former Sludge Incorporation Area -0 0 0 s - Managed Area with Limited Public Access ^ Figure A Surrounding Area Ma M Dyneon Deeatur Alabama ^ 0 ^ ^1 s "a 0 0 Q M W 01 UTMEast km Image courtesy ofUSGS Edge markings shown in Universal Transverse Mercator Coordinates Zone A Da A Pro So DECATUR, AL - 3M & DYNEON DESCRIPTION OF SLUDGE INCORPORATIO Permitted Activity Full Historical Documentation - Number of Fields - Quantity of Solids Deposited Discontinued in 1998 Fields Converted to a Managed Wildlife Habit Area with Limited Public Access (Part of Area now owned by Daikin) ^^ - - r ire A Aerial Ph( M Dyneon ~a 0 o s u ^s A UTMEast km A IEmdaggeemcaorukrintegssy sohfoUwSnGiSn Universal Transverse Mercator Coordinates Zone N W EXP000239 DECATUR. AL MONITORING ACTIVITY P 3M - 3M/Dyneon Phase!: LOI of March 2003 - Assess Impact of: Previous Discontinued Operations Waste Disposal Practices And Fluoropolymer Manufacturing - On-site Groundwater (6 Wells) and Effluent Monitor - Off-site Tennessee River Monitoring Surface Water (5 Locations) Sediments (5 Locations) Fish J - Data Collected and Submitted - August 2003 j - Continues to 2007 0 - Air Dispersion Modeling DECATUR, AL ~ 3M & DYNEON ANALYSIS OF AIR RELEASES PFOA Air Emissions Dyneon: -11 Ibs./year (highest level over last 10 years) Daikin America: ~ 400 Ibs./year Air Dispersion Modeling Submitted January 8, 2004 Modeling Results Dyneon: 0.0019 ug/m3 (fence line & property boundary) Dyneon plus Daikin: 0.13 ug/m3 (fence line) 0.02 ug/m3 (property boundary) Negligible Offsite Impact No Reason to Expect an Impact Across the River Figure A-2; Aerial Photog? 3 M Dyneon Decatur Alabama ^ t; 0 ^ A UTMEast km A Image courtesy ofUSGS Edge markings shown in Universal Transverse Mercator Coordinates Zone PECATUR. AL MONITORING ACTIVIT PLANS (Conti.) 3M&Dyneon Phase II: Additional On-Site Monitoring - 2004 - Groundwater* 8 Wells in Waste Disposal Areas Include a Hydrogeologic Analysis - Soil Sampling 2 Borings In All Locations of Well Monitoring Soil Sampling From 5 Depths (100 -140 sample - Biota Survey Needed to Choose Biota Species Terrestrial Vegetation (2-3 Species) Terrestrial Vertebrate(s) (Voles and/or Other) 0 0 0 K * Enhancements since December, 2003 DECATUR. AL MONITORING ACTIVIT PLANS (ContL) 3M & Dyneon Phase II: Additional Off- Site Monitoring - 2004 - Aquatic Biota in Tennessee River Lower Order Species: Clams and Mussels in 3-5 Locations Additional Fish Monitoring: 2 Species in 5 Locations: fillets and whole fish (5-10 fish per species per location) a - Piscivorous Avian Biota 0M00 Logistics May Preclude Sampling This Year .t. p> isy -^s^ DECATUR. AL MONITORING ACTIVIT PLANS. (CoMtU 3M&Dyneon Phase III: Assessment of Continued Monitoring of On-Site Groundwater, Vegetation and Terrestrial Verteb Assessment of Expanding Monitoring Off-Site fo Groundwater, Vegetation, Terrestrial Vertebrat Aquatic Avian Biota Scope, location, number of samples, types of spec informed from Results of Phases I & II Monitoring Data Results s Hydrogeologic Analysis I 0 Biota Data and Potential for Uptake 01 Understanding of Possible Migration Pathw Timing: 2005 and Beyond DECATUR MONITORING - 3M AND DYNEON NOTE: PRELIMINARY ESTIMATES FOR PHASE Phase I; LOI Commitment Media Effluent Groundwater (6 wells) Air Modeling Groundwater (8 wells) OnSite #of Samples 1 6 N/A 8 Frequency Quarterly Quarterly Completed Once Phase n: Additional Commitments Phase HI: Informed and Specified Based on Results of Phases I & n Information Soils in Vicinity of all Wells (5 depths) Vegetation in Vicinity of Soils Biota (Voles or Other) Hydrogeologic Model in Vicinity of Wildlife Habitat Area Groundwater Soils Vegetation Biota 100 -140 Once 18-24 Once 8 Once TBD TBD * Every 2 Years Off-Site Tennessee #of Fre River Samples Surface Water 5 Bie Sediment 5 Bie Fish (2 species) 5 Bie Lower Order 5 On Species (clams/mussels) Additional 3 On Locations for Fish Monitoring Piscivorous Avian Biota (Bird Eggs) Needs to b Postponed at this time Groundwater Soils Vegetation Biota Terrestrial and/or Aquatic) TBD mss, y SUMMARY OF MONITORING PLA 3M & Dyneon - Decatur^ AL Site Monitoring to Assess Impact Mainly of: Previous Discontinued Operations Waste Disposal Practices And Fluoropolymer Manufacturing (minor Tiered Approach Recommended Science-based Data Collection with Contextual Understand Timely Execution of Phases I & II T3 0 I 0 0 s Phase III Informed from Results of Phases I s Workplan in Development for Phase II with Monitoring to be Performed in 2004 ^.f RECOMMENDATION FOR PATH FORW Proceed with Phased Approach Monitoring to be Performed in 2004 Monitoring to be Done Under a Different Mechan Other than an ECA such as a Memorandum of Understanding Consideration for a Peer Consultation Process 5 JUSTIFICATION FOR MOU APPROACH More Flexible Quicker Implementation Monitoring Data Can be Obtained Sooner Can Address Off-site Activities Can Address Historical Site Activities in Addit to Ongoing Fluoropolymer Production Assure Transparency Include Process for Data Review and Technica Evaluations of Phase I & II Monitoring Resu m 0o-xu and Design of Phase III (Peer Consultation) 0 K (0