Probability values (p-values) for OC San P1 and P2 raw influent and secondary effluent correlations.

Correlations for raw influent and secondary effluent concentration distributions for P1 and P2 are illustrated. These correlations demonstrate how ranked log concentration values from the influent and effluent are related. Correlations for each secondary effluent process were modeled with a linear trendline to calculate Pearson’s correlation coefficient of determination (R2). R2 values measure the amount of variation between two distributions and range between -1 and 1, where 0 represents no correlation and 1 or -1 represent a perfect correlation. Each correlation shown in S5 Fig is statistically significant, with probability values (p-values) less than 0.1% (p Table 1. (XLSX)