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

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Mercury Manometer Investigation and
RemediationA COOPERATIVE EFFORT WITH THE
NATURAL GAS INDUSTRYBill Schramm
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History of Meter Use

• 1920s Development of natural gas collection and
  distribution systems
• Mercury meters (to present)
• Dry flow meters (from 70s)
• Electronic (from 90s)

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Meter Applications

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

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Typical Mercury Meter
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What are the typical configurations?
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Single Run
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Multiple Run
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Shed
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Building with Multiple Meters on a Manifold
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Tower in Flood-Prone Locations
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Platform in Shallow-Water Locations
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Local Distribution
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Compressor Stations
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Investigation and Remediation Plan

• Records review
• Field verification
• Initial Sampling
• Iterative excavation
• Confirmation Sampling

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Remediation Activities
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Meter Dig
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Shed Dig
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Run Dig
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Livestock Pasture Dig
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Iterative Dig Sample
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Iterative Dig Sample
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Iterative Dig Sample
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Confirmation Samples
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Site Closure

• Final remedial report received
• Confirm data QA/QC
• Review data for compliance with RECAP in LAC
  33I.Chapter 13
• Management Options SSni2.3ppm, MO1ni23ppm,
  MO23site specific levels
• Prepare NFA-BOD for site/sites meeting
  requirements
• Site/sites receive closure with approved NFA-ATT

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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, 2100 have 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.

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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

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For more information regarding mercury manometers
and remediation please contact
Bill Schramm bill.schramm_at_la.gov [phone]
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