Calculating the 2006 Chesapeake Bay report card scores

Report Card Methods NewsletterThis newsletter describes the methods and approach underpinning the 2006 Chesapeake Bay Report Card. Specific topics covered include selection of indicators, the methods used to combine indicators into overarching indices and selection of reporting regions. The newsletter also summarizes how the sensitivity of the Water Quality Index was tested by comparing results from high and low nutrient load years. The newsletter can be downloaded from the EcoCheck website.