IV 
V. Chlorophyll a Criteria Assessment Procedures . 27 
Background. 27 
Approach and Protocol Application with Examples. 29 
Types of Output. 30 
Future Directions. 32 
Literature Cited. 33 
Acronyms . 34 
Appendices 
A. Procedure for Assessing Dissolved Oxygen Criteria Attainment: 
30-day Criterion, Including Plotting a Bioreference Curve. 35 
B. Stations Involved in the 2004-2006 303d Listing Assessment for 2008 .... 39 
C. A Comparison of Methods for Estimating K d . 44 
D. Derivation of K d Regressions: DATAFLOW Report on the Lumping 
vs. Splitting of Regions for MDDNR DATAFLOW K d vs. Turbidity 
Regressions and Calibrations. 47 
E. Chesapeake Bay Water Clarity Assessment Framework . 59 
F. Chesapeake Bay Clarity Criteria Attainment Results . 66 
G. Chlorophyll a Assessment Protocol. 70 
Contents 
