Year | AM | SD | Min | Max | n |
1992 | 46.6 | 22.6 | 6.6 | 142.2 | 290 |
1993 | 48.9 | 22.7 | 6.6 | 111.0 | 297 |
1994 | 49.9 | 22.8 | 6.6 | 102.4 | 299 |
1995 | 46.1 | 19.9 | 6.6 | 91.6 | 304 |
1996 | 46.9 | 18.8 | 6.6 | 88.0 | 304 |
1992–6 | 47.6 | 21.4 | 6.6 | 142.2 | 1494 |
AM=Arithmetic mean (μg/l); Min=minimum zone TTHM mean (μg/l); Max=maximum zone TTHM mean (μg/l); n=number of observations; TTHM=total trihalomethane.