UNDERGROUND INJECTION CONTROL: CLASS V WELLS

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UNDERGROUND INJECTION CONTROLCLASS V WELLS

• Douglas Minter
• UIC Program
• EPA Region 8

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CLASS V WELLS

• Define Class V wells
• Explain how EPA regulates Class V wells
• Describe additional proposed regulatory
  requirements
• Explain how EPA implements Class V field
  program

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DEFINE CLASS V WELLS

• Uses of Class V wells
• Associated businesses and government facilities
• Harmful vs. beneficial uses

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DEFINE CLASS V WELLS

• Configurations of Class V wells
• Sump and separator system
• Drainage well or drywell
• Septic system

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EXPLAIN HOW EPA REGULATES CLASS V WELLS

• Inventory requirement (40 CFR 144.26)
• All new and existing Class V wells
• Does not apply to small capacity (lt 20
  persons / day) sanitary discharges

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EXPLAIN HOW EPA REGULATES CLASS V WELLS

• Non-endangerment standard (40 CFR
  144.12(a)
• Emphasis on prevention, not remediation

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EXPLAIN HOW EPA REGULATES CLASS V WELLS

• Low-risk versus high-risk wells
• To date, high risk wells include motor vehicle
  waste disposal wells, industrial disposal wells
  and large capacity cesspools
• Facilities w/ high risk wells can include vehicle
  repair / washing operations, RV dump stations,
  paint / autobody shops, and stormwater wells in
  industrial areas.

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PROPOSED ADDITIONAL REGULATORY REQUIREMENTS

• Protect source water and other sensitive areas
  by
• Banning new large capacity cesspools phasing
  out existing ones
• Banning motor vehicle waste disposal wells
• Introducing new requirements for industrial
  disposal

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HOW EPA IMPLEMENTS CLASS V FIELD PROGRAM

• Inventory and risk assessment
• Mass mailings, mtgs w/ local govts
• Compliance assistance
• Permit or close high risk wells
• Monitoring and enforcement
• Notices of violation and administrative orders

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Class V Field Program

• EPA Contacts
• Region 8 Class II wells
• Dan Jackson [phone]
• Region 8 Class V wells
• Douglas Minter [phone]
• Other Regions contacts listed in student manual