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A Multistate Water Quality A Multistate Water Quality Trading Tool for theTrading Tool for theTrading Tool for the Trading Tool for the
Chesapeake BayChesapeake Bay
Mindy Selman & Sara WalkerMindy Selman & Sara WalkerDecember 16, 2011December 16, 2011December 16, 2011December 16, 2011
NutrientNet/NTT
NutrientNet:R i t– Registry
– 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:
I t t t t di• Interstate trading
• Unique elements of state programs
Benefits
• Align infrastructureAlign infrastructure
• Facilitate trades• Standard basis for
determining credits
• Integrated registry
F ilit t d t• Facilitate updates
Calculation Considerations
• Trading ratios
• Baselines
• practice vs. pperformance
• farm vs. field
• Allowable practices• Accommodating
evaluation uses• CBWM
NutrientNet Calculations
Chesapeake Bay Watershed Model
NTTManagement Info
Spatial Info
NTT Output (Edge of Farm)
= NTTStructural BMPs
Current TMDL
Trading Eligibility NTT
= NutrientNetOperations
Edge of Segment Delivery
Current Load (EOS)
TMDL Baseline (EOS)
= CBWM
Thank YouThank You
[email protected]@wri.orglk @ ilk @ [email protected]@wri.org