Great Chazy joins the group of tributaries that show predominantly downward trends in flow-normalized concentrations. Predominantly upward trends in concentrations observed originally for the Little Ausable, Lamoille, and Missisquoi have become less prominent with the revised data. A cone-shaped pattern for flow-normalized N yields originally seen in Little Chazy and an upward trend in Missisquoi

are diminished with the revised analysis. The first sentence of the last paragraph in this section should change as follows: “For the period from 1990 to 2000, flow-normalized N concentrations increased in 15 [17] tributaries ( Fig. 5) and yields increased in 15 [16] tributaries (Appendix C). Changes to several numbers in the section “Aggregated phosphorus flux history” are presented here in italics, along with the original numbers in brackets. “Total gaged drainage showed a net decrease in P from check details about 738 [755] mt/yr in 1990 to about 722 [725] mt/yr in 2009 for a total reduction over the

monitored period of 16 [30] mt/yr (the maximum decrease was 46 [59] mt/yr between 1990 and 2005 [2004]). Tributaries that contributed most of the reduced flux into Lake Champlain between 1990 and 2005 Roxadustat ic50 [2004] were the Missisquoi (decrease of 24 [30] mt/yr or 38% of the decrease from the eastern drainage) and Winooski (decrease of 19 [28] mt/yr or 30 [35] %). In the section “Relating trends to management goals”, the first sentence should read as follows: “The reduction in P flux between

1990 and 2009 for the entire gaged part of the Lake Champlain basin illustrated in Fig. 6 was about 8 [15] % of the basinwide targeted load reduction of 202 mt/yr (Lake Champlain Steering Committee, 2003). The authors would like to apologize for any inconvenience caused. Fig. 2.  Annual and flow-normalized mean concentration and yield histories of total phosphorus (P) for 18 Lake Champlain tributaries from 1990 to 2009. Open circles show annual mean concentrations or yields based on model estimates of daily concentration and measured daily discharge and lines show flow-normalized annual mean concentrations or yields. Tributaries are listed in downstream order except for Pike River. Tributary 1990–20001 1999–20091 1990–20091 Table B1 Change2 in flow-normalized annual mean concentration mg/L %3 mg/L %3 mg/L DNA ligase %3 Great Chazy 0.016 48 0.005 11 0.021 63 Little Chazy 0.056 77 − 0.055 − 42 0.004 6 Saranac 0.003 17 0.001 4 0.004 21 Salmon 0.004 21 0.001 3 0.005 24 Little Ausable 0.027 50 − 0.025 − 31 0.003 5 Ausable 0.008 42 − 0.005 − 17 0.004 18 Bouquet 0.007 29 − 0.002 − 7 0.005 20 Putnam 0.004 30 − 0.002 − 13 0.002 15 Poultney 0.003 6 − 0.008 − 15 − 0.005 − 9 Mettawee − 0.001 − 2 0.002 3 0.001 2 Otter − 0.023 − 23 − 0.017 − 21 − 0.038 − 37 Little Otter <− 0.001 <− 1 − 0.009 − 10 − 0.009 − 9 Lewis 0.001 3 0.003 6 0.003 8 LaPlatte − 0.227 − 74 − 0.034 − 39 − 0.