Table O.4.
Annual maximum PEC sw for the four types of sediment of Table O.1 for the 20 FOCUS evaluation years. Difference A vs. B corresponds to 100 × (B − A)/A
| Year | Curr_DefDiscr (μg/L) | Curr_FinDiscr (μg/L) | Thi_DefDiscr (μg/L) | Thi_FinDiscr (μg/L) | Difference Curr_DefDiscr vs Curr_FinDiscr (%) | Difference Curr_DefDiscr vs Thi_DefDiscr (%) |
|---|---|---|---|---|---|---|
| 1975 | 1,114.5 | 1,114.4 | 1,112.4 | 1,112.3 | −0.01 | −0.19 |
| 1976 | 603.5 | 603.6 | 599.9 | 600.0 | 0.02 | −0.60 |
| 1977 | 1,393.3 | 1,393.2 | 1,391.6 | 1,391.5 | −0.01 | −0.12 |
| 1978 | 1,095.3 | 1,095.3 | 1,092.3 | 1,092.2 | 0.00 | −0.27 |
| 1979 | 1,023.5 | 1,023.5 | 1,020.5 | 1,020.4 | 0.00 | −0.29 |
| 1980 | 1,248.7 | 1,248.7 | 1,246.7 | 1,246.7 | 0.00 | −0.16 |
| 1981 | 1,340.0 | 1,339.9 | 1,338.1 | 1,338.0 | −0.01 | −0.14 |
| 1982 | 1,024.6 | 1,024.6 | 1,021.6 | 1,021.6 | 0.00 | −0.29 |
| 1983 | 1,,058.8 | 1,058.7 | 1,056.4 | 1,056.3 | −0.01 | −0.23 |
| 1984 | 810.0 | 810.0 | 807.0 | 807.0 | 0.00 | −0.37 |
| 1985 | 918.3 | 918.3 | 916.3 | 916.2 | 0.00 | −0.22 |
| 1986 | 1,052.3 | 1,052.3 | 1,050.3 | 1,050.3 | 0.00 | −0.19 |
| 1987 | 733.5 | 733.5 | 731.2 | 731.2 | 0.00 | −0.31 |
| 1988 | 1,356.8 | 1,356.7 | 1,355.1 | 1,355.0 | −0.01 | −0.13 |
| 1989 | 538.6 | 538.6 | 536.2 | 536.2 | 0.00 | −0.45 |
| 1990 | 849.8 | 849.8 | 848.0 | 848.0 | 0.00 | −0.21 |
| 1991 | 807.7 | 807.6 | 805.7 | 805.6 | −0.01 | −0.25 |
| 1992 | 809.5 | 809.5 | 807.1 | 807.0 | 0.00 | −0.30 |
| 1993 | 873.6 | 873.5 | 871.5 | 871.4 | −0.01 | −0.24 |
| 1994 | 1,269.4 | 1,269.3 | 1,267.7 | 1,267.6 | −0.01 | −0.13 |