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BMI Companies Project Status Update

BMI Companies Project Status Update. By Brian A. Rakvica, P.E. Supervisor, Special Projects Branch, Bureau of Corrective Actions, NDEP. Project Status Update. Brief review of site, location and parties involved. Project Status Update.

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BMI Companies Project Status Update

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  1. BMI CompaniesProject Status Update By Brian A. Rakvica, P.E. Supervisor, Special Projects Branch, Bureau of Corrective Actions, NDEP

  2. Project Status Update • Brief review of site, location and parties involved.

  3. Project Status Update • Currently, the Phase III Administrative Order on Consent for the BMI Common Areas is being negotiated between NDEP, BMI and the remaining Companies. Completion is imminent. • This AOC will be used as the template for the negotiations with the individual BMI companies.

  4. BMI Common Areas Project Status • In 2004 a significant investigative effort was completed in the BMI Common Areas known as the Upper and Lower Ponds. • This investigation included the installation of approximately 45 wells and a number of soil samples. • NDEP is currently working with BMI to finalize the groundwater monitoring plan for this area.

  5. BMI Common Areas Project Status • Groundwater modeling is expected for the Upper and Lower Ponds area and the NDEP is working with BMI on this issue. • Additional groundwater investigation is expected in the area between the Upper and Lower Ponds and the Las Vegas Wash.

  6. BMI Common Areas Project Status • BMI is moving forward on the development of a number of documents on a variety of subjects including (but not limited to): ecological risk assessment; construction of their Corrective Action Management Unit (CAMU; aka: landfill); corrective action plan; conceptual site model; data quality objectives; etc.

  7. Pioneer, Stauffer, and Montrose Project Status • A renovation of the existing Groundwater Treatment System is currently underway. • Modifications include: replacement of air stripper; addition of GAC to treatment train, rehabilitation of extraction wells and renovation of injection trenches.

  8. TIMET – Project Status • A wastewater treatment plant has been constructed on site (reverse osmosis). • This plant will allow the remediation and closure of the off-site TIMET ponds which are now the responsibility of BMI.

  9. TIMET Project Status • Excavation and off-site disposal of historic wastes stored on-site has been on-going and will continue into the future. • A detailed investigation of the off-site migration of contaminants is currently on-going.

  10. Tronox Project Status • Kerr-McGee is now known as Tronox. • Investigation of the site is on-going.

  11. Tronox Project Status • Remediation of chromium in groundwater is on-going. • Remediation of chromium has been expanded to the Athens Road wellfield. • Source remediation is being investigated.

  12. Tronox Project Status • Remediation of perchlorate in groundwater is on-going. • Investigation and refinement of the extraction wellfields continues. • Current mass loading to the Las Vegas Wash is 120-150 pounds per day (down from 900-1,000 Pounds per day in 1998) • Current Lake Mead concentration is <3 ppb. • In addition to Tronox, other sources of perchlorate loading to the Las Vegas Wash include: AmPac, bank storage within the Wash, BMI waste disposal ponds, municipal wastewater plant effluent, storm water and Wash gravels.

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