Subsurface Disposal

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• Subsurface Sewage Treatment and Disposal Systems - Septic Systems

  Septic systems treat and disperse wastewater from individual or small numbers of homes and commercial buildings. The type and/or size of the septic system, determines what agency has regulatory authority.

• 2007 Guidance Document for Design of Large-Scale On-Site Wastewater Renovation Systems

  The Guidance Document for Design of Large-Scale On-Site Wastewater Renovation Systems (OWRS) is intended to provide information and methodologies for the design, construction, operation and maintenance for those wastewater renovation systems which are under the Department’s regulatory authority.