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Mercury Manometer Investigation and Remediation: A COOPERATIVE EFFORT WITH THE NATURAL GAS INDUSTRY Bill Schramm

Mercury Manometer Investigation and Remediation: A COOPERATIVE EFFORT WITH THE NATURAL GAS INDUSTRY Bill Schramm. History of Meter Use. 1920’s Development of natural gas collection and distribution systems Mercury meters (to present) Dry flow meters (from ’70s) Electronic (from 90’s).

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Mercury Manometer Investigation and Remediation: A COOPERATIVE EFFORT WITH THE NATURAL GAS INDUSTRY Bill Schramm

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  1. Mercury Manometer Investigation and Remediation:A COOPERATIVE EFFORT WITH THE NATURAL GAS INDUSTRYBill Schramm

  2. History of Meter Use • 1920’s Development of natural gas collection and distribution systems • Mercury meters (to present) • Dry flow meters (from ’70s) • Electronic (from 90’s)

  3. Meter Applications • Field development • System development • National distribution network • Other industrial applications • Domestic applications • Meter servicing operations

  4. Typical Mercury Meter

  5. What are the typical configurations?

  6. Single Run

  7. Multiple Run

  8. Shed

  9. Building with Multiple Meters on a Manifold

  10. Tower in Flood-Prone Locations

  11. Platform in Shallow-Water Locations

  12. Local Distribution

  13. Compressor Stations

  14. Investigation and Remediation Plan • Records review • Field verification • Initial Sampling • Iterative excavation • Confirmation Sampling

  15. Remediation Activities

  16. Meter Dig

  17. Shed Dig

  18. Run Dig

  19. Livestock Pasture Dig

  20. Iterative Dig & Sample

  21. Iterative Dig & Sample

  22. Iterative Dig & Sample

  23. Confirmation Samples

  24. Site Closure • Final remedial report received • Confirm data QA/QC • Review data for compliance with RECAP in LAC 33:I.Chapter 13 • Management Options: SSni=2.3ppm, MO1ni=23ppm, MO2&3=site specific levels • Prepare NFA-BOD for site/sites meeting requirements • Site/sites receive closure with approved NFA-ATT

  25. How Many? • There are an estimated 25,000-30,000 locations throughout Louisiana. • Since 1991 over 4900 have been investigated with DEQ oversight. • Of the 4900, 2100have been cleaned up with DEQ oversight, the remaining 2800 did not require corrective action. • Currently there are approximately 400 to 500 sites in process with LDEQ.

  26. How does DEQ want to move forward? • Establish a cooperative policy to get responsible parties to voluntarily report and manage their sites • Develop citizen outreach to inform and protect • Establish database/GIS information to aid in integrating mercury distribution to water quality issues and source control

  27. For more information regarding mercury manometers and remediation please contact: Bill Schramm bill.schramm@la.gov (225) 219-3403

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