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BAT Septic Systems as a nutrient trading tool

Learn about BAT septic systems as a nutrient trading tool approved by the Maryland Department of the Environment. Discover the cost-effective TN removal potential and market opportunities for BAT systems. Find out the keys to success in incentivizing homeowners and businesses to adopt BAT systems.

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BAT Septic Systems as a nutrient trading tool

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  1. BAT Septic Systems as a nutrient trading tool DECEMBER 12, 2016

  2. RecoSept™ System (Patented) Std. OSDS Effluent RecoSept™ Effluent BioFilter Cabinet™

  3. Why BAT Systems as a Nutrient Trading Tool? • MDE-approved BAT systems as replacements for existing OSDS would be a credible and reliable source of N credits • Rigorous testing protocol • Long-term O&M contract requirements • MDE-approved BAT systems would provide one of the lowest cost trading tools available

  4. TN Removal Through the Stages of an OSDS (Septic) System

  5. BAT System Cost/lb N Reduction • 10-year average cost of MDE-approved BAT system $13,500 • TN Reduction Range 8 lbs. – 14.4 lbs. • $/lb. Reduction in TN $94 - $169

  6. Why BAT Systems as a Nutrient Trading Tool? • MDE-approved BAT systems as replacements for existing OSDS would be a credible and reliable source of N credits • Rigorous testing protocol • Long-term O&M contract requirements • MDE-approved BAT systems would provide one of the lowest cost trading tools available • Deep trading market potential

  7. BAT System Trading Potential Perspective • 420,000 standard OSDS in Maryland • 52,000 standard OSDS in the Critical Area • 2.4 MM lbs. N credits needed to meet all MS4 requirements • Retrofitting ~ 50% of Maryland’s existing OSDS to BAT systems would meet the entire MS-4 offset • Retrofitting all of the CA OSDS would offset almost one-third of the required off-set

  8. Keys for Success • Homeowners/businesses need to be incentivized to retrofit their existing system: • System benefits to homeowner + N credits > Cost of system • Aggregators to bundle • Streamlined permitting process

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