The “P Trade” report (report WQ1 under the “Water Quality” heading in the Reports page) can be used to quantify phosphorus trading credits. This document explains how and why:
WDNR – Using Snap-Plus to Quantify Phosphorus Trading Credits -10-23-2018

For more information, see the Wisconsin water-quality trading website at https://dnr.wi.gov/topic/surfacewater/waterqualitytrading.html.

More questions? Contact the DNR at DNRphosphorus@wisconsin.gov