Data Quality

This refers to the "quality" of the data used in the assessment
and refers to the number and extent of observations available
for the assessment. The terms used were derived from USEPA
guidance but actual classifications were developed by MPCA as
follows: Poor - < 4 TP observations; Fair - 4 <= TP< 8, some
chlorophyll-a and Secchi; Good - 8 < TP < 10, some chlorophyll-
a and Secchi; and Excellent - 10 or more TP, chlorophyll-a and
Secchi observations.