Tribal-led Cleanup Activities at the Tar Creek Superfund Site
Transcription
Tribal-led Cleanup Activities at the Tar Creek Superfund Site
TRIBAL-LED CLEANUP ACTIVITIES AT THE TAR CREEK SUPERFUND SITE Craig Kreman Quapaw Tribe of Oklahoma 2015 Tribal Lands & Environment Forum August 17-20, 2015 HIGHLIGHTS Quapaw History Tri-State Mining District Tar Creek Superfund Site Tribe’s Initial Involvement at Site Tribal-led Remedial Action Activities Future Work at Site 2 QUAPAW HISTORY Dhegihan Sioux Same Siouan linguistic family as Ponca, Osage, Omaha and Kansa tribes. Early 1600s: Started moving downstream (Mississippi) to present day Arkansas “Downstream” People Dancers from 2015 Quapaw Powwow 3 QUAPAW HISTORY ~48,000 acres 30,000,000 + acres 4 TRI-STATE MINING DISTRICT Began mining the area during the late 1800’s, lasted until approximately 1970 Mining and milling of ore (primarily lead and zinc) produced more than 500 million tons of waste in area Two primary types of wastes from mining processes: chat (coarse tailings) and fine tailings https://www.youtube.com/watch?v=3ls3NdTKSHs 5 TRI-STATE MINING DISTRICT BY THE NUMBERS 230 ore mills built in the Picher Mining Field by 1918. 181,000,000 tons of crude ore mined in Ottawa County. 8,880,000 tons of Zinc concentrate produced. 1,690,000 tons of Lead concentrate produced. 13,000,000 gallons pumped per day to dewater the mines. ~32,000,000,000 gallons of water fill the mines today. 26,000 acres contained within Superfund Site boundary (OU4). ~ 2,800 residential yards remediated since 1996 (OU2). ~40,000,000+ tons of chat remain at the Site. 1,064 mine shafts and subsidence features mapped. 678 residential properties eligible for relocation buyout (OU2). $170,000,000+ cost over next 40 years for chat remedy. 6 TRI-STATE MINING DISTRICT 7 TAR CREEK SUPERFUND SITE Environmental problems began showing up in 1979 with the advent of acid mine drainage from the underground mines flowing into Tar Creek through abandoned mine shafts and boreholes 1980 Tar Creek Task Force 8 TAR CREEK SUPERFUND SITE Designated as a Superfund Site in 1983, following the establishment of Hazard Rank System and National Priorities List in 1981 and 1982, respectively under the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA). Four Main Objects of Remediation 9 TAR CREEK SUPERFUND SITE Operable Units OU1 – Surface Water/Groundwater OU2 – Residential Properties OU4 – Chat Piles, Other Mine and Mill Wastes, Smelter Wastes OU5 – Sediment and Surface Water 10 TAR CREEK SUPERFUND SITE Operable Unit No. 4, Distal Areas 11 INITIAL INVOLVMENT AT TAR CREEK Through the EPA Region 6 General Assistance Program (GAP), the Quapaw Tribe Environmental Office was established on October 1, 1997. In June of 1998, the Quapaw Tribe Chairman and the EPA Region 6 Administrator signed a Tribal Environmental Agreement, which established a formal agreement between the Tribe and EPA to address the issues raised regarding the environmental protection of lands within the Quapaw Tribe’s jurisdictional lands. 12 INITIAL INVOLVMENT AT TAR CREEK Currently, the Quapaw Tribe is administering an EPA Superfund management assistance grant under an existing Superfund support agency cooperative agreement. The tribe entered into this support agency cooperative agreement with EPA in 2001. This management assistance grant has enabled the tribe to have “meaningful and substantial involvement” in the decisions related to the development and implementation of remedial activities. 13 INITIAL INVOLVMENT AT TAR CREEK Working together with EPA and other stakeholders on Tar Creek issues over the past 12 years has enabled the Quapaw Tribe Environmental Office to develop the technical capacity required to administer a remedial response cooperative agreement. Consequently, in 2013, the Tribe negotiated a remedial response cooperative agreement with EPA Region 6 to self-perform the remediation of an historic and culturally significant tribal property know to the Quapaw as the “Catholic 40.” https://www.youtube.com/watch?v=kajj-2ntc3c&list=PLix7oxf6liugOc7EeMEYPPLvdMWG0Txbm&index=59 14 INITIAL INVOLVMENT AT TAR CREEK Cooperative Agreement for Remedial Action signed between EPA and the Quapaw Tribe of Oklahoma was the first-ever Remedial Action in the nation conducted by a tribe on property that they own. On-the-ground remedial activities would be completed by Quapaw Tribe’s construction division, Quapaw Services Authority (QSA). https://www.youtube.com/watch?v=kajj-2ntc3c&list=PLix7oxf6liugOc7EeMEYPPLvdMWG0Txbm&index=59 15 TRIBAL-LED REMEDIAL ACTION ACTIVITIES CATHOLIC 40 SE Distal Zone, Distal 8 “Catholic 40” Tribal Trust Land 40-acre parcel owned by the Quapaw Tribe of Oklahoma and was set aside in 1892 to the Catholic Church for religious and education purposes. In that same year, St. Mary’s of the Quapaw, a Catholic Church, a cemetery, and a boarding school was established. St. Mary’s operated up until 1927, following abandonment, the church leased the property for mining in 1937. In 1975, the Catholic Church deeded the property back to the Quapaw Tribe of Oklahoma. 16 TRIBAL-LED REMEDIAL ACTION ACTIVITIES CATHOLIC 40 17 TRIBAL-LED REMEDIAL ACTION ACTIVITIES CATHOLIC 40 The Quapaw Tribe Environmental Office, retained the services of a consulting engineering firm to assist in generating plans and specifications, and other preconstruction documents. Remedial Action began in December 2013 and involved: excavation, hauling, and disposal of approximately 107,000 tons of source material (chat). 18 TRIBAL-LED REMEDIAL ACTION ACTIVITIES CATHOLIC 40 19 TRIBAL-LED REMEDIAL ACTION ACTIVITIES CATHOLIC 40 20 TRIBAL-LED REMEDIAL ACTION ACTIVITIES CATHOLIC 40 Transition Zone (TZ) Sampling and Analysis 5 aliquots from each grid homogenized into one sample sent to lab for analyses (0-6 and 6-12 inch sample depths) Analyses included Tar Creek Contaminants of Concern: Cadmium, Lead, and Zinc 21 TRIBAL-LED REMEDIAL ACTION ACTIVITIES CATHOLIC 40 Soil Amendments to TZ soils to potentially reduce Bioavailability of Metals Agricultural Lime Chicken Litter, and Mushroom Compost Native Grass Seeding Fescue Rye Bermuda 22 TRIBAL-LED REMEDIAL ACTION ACTIVITIES DISTAL 6a SE Distal Zone, Distal 6a Unrestricted Property State-led project, with the request that the Tribe do the remediation work as the “contractor” through an intra-agency agreement. Adjacent to “Catholic 40” property 23 TRIBAL-LED REMEDIAL ACTION ACTIVITIES DISTAL 6a 24 TRIBAL-LED REMEDIAL ACTION ACTIVITIES DISTAL 6a 25 TRIBAL-LED REMEDIAL ACTION ACTIVITIES DISTAL 6a Remedial Action began in June 2014 and involved: excavation, hauling, and disposal of approximately 82,000 tons of source material (chat). The source material was disposed of in a large collapsed feature on the north end of the Tar Creek Site. 26 TRIBAL-LED REMEDIAL ACTION ACTIVITIES DISTAL 6a Same soil amendment activities as conducted at “Catholic 40” 27 TRIBAL-LED REMEDIAL ACTION ACTIVITIES BEFORE AND AFTER Courtesy of Google Earth – dated 04/23/2013 28 TRIBAL-LED REMEDIAL ACTION ACTIVITIES BEFORE AND AFTER Courtesy of Google Earth – dated 03/29/2015 29 TRIBAL-LED REMEDIAL ACTION ACTIVITIES Beaver Creek North SE Distal Zone, Beaver Creek North Mixed-Ownership Property (Restricted and Unrestricted Interest) Cooperative agreement with EPA to conduct remedial action activities Chat Pile 060 Marketable Source Material 30 TRIBAL-LED REMEDIAL ACTION ACTIVITIES Beaver Creek North Remedial Action began in June 2015 and involved: excavation, hauling, and disposal of approximately 47,000 tons of source material (chat). Marketable and Unmarketable chat present The source material was disposed of in a large collapsed feature on the north end of the Tar Creek Site. 31 TRIBAL-LED REMEDIAL ACTION ACTIVITIES Beaver Creek North 32 TRIBAL-LED REMEDIAL ACTION ACTIVITIES Beaver Creek North 33 FUTURE WORK AT SITE Elm Creek Distal Zone Distal 13 Distal 10 and 12 OU5 Data Gap Analysis and Potential Modeling Continued Investment and Dedication to Tribal Interest and Community 34 THANK YOU AND ENJOY THE FORUM QUESTIONS and/or COMMENTS??? CONTACT INFO: Quapaw Tribe Environmental Office (918) 533-3085 Tim Kent, Director [email protected] Craig Kreman, Assistant Director [email protected] 35