A Multistate Water Quality A Multistate Water Quality Trading Tool for the Trading Tool for the Trading Tool for the Trading Tool for the Chesapeake Bay Chesapeake Bay Mindy Selman & Sara Walker Mindy Selman & Sara Walker December 16, 2011 December 16, 2011 December 16, 2011 December 16, 2011
NutrientNet/NTT NutrientNet: – R Registry i t – Marketplace – Calculation Tools (NTT + GIS + policy) NTT: – dynamic biophysical model – APEX, RUSLE2, Century – Developed through NRCS Developed through NRCS – Nutrients, Sediments & C
Multistate Platform CIG to create a single multistate WQT platform (NutrietnNet/NTT) that will accommodate: accommodate: • Interstate trading I t t t t di • Unique elements of state programs
Benefits • Align infrastructure Align infrastructure • Facilitate trades • Standard basis for determining credits • Integrated registry • Facilitate updates F ilit t d t
Calculation Considerations • Trading ratios • Baselines • practice vs. p performance • farm vs. field • Allowable practices • Accommodating evaluation uses • CBWM
NutrientNet Calculations Chesapeake Bay Watershed Model Management Info NTT Spatial Info NTT Output (Edge of Farm) = NTT NTT Trading Eligibility Structural = NutrientNet BMPs Operations Current Current TMDL TMDL = CBWM Edge of Load Baseline Segment (EOS) (EOS) Delivery
Thank You Thank You mindy.selman@wri.org mindy.selman@wri.org sara.walker@wri.org sara.walker@wri.org lk lk @ @ i i
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