Table 2 CBP levels measured in each distribution system during 2006-2008
Distribution system | TTHM (μg/L) | HAA9 (μg/L) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
25thPerc.a | 50thPerc. | 75thPerc. | Mean | SDb | 25thPerc. | 50thPerc. | 75thPerc. | Mean | SD | |
AR | 31.1 | 67.4 | 117.5 | 76.6 | 50.0 | 36.2 | 60.4 | 100.9 | 74.9 | 50.0 |
DE | 61.8 | 99.1 | 162.7 | 111.3 | 61.2 | 73.5 | 113.5 | 145.1 | 115.2 | 52.9 |
LE | 43.4 | 61.8 | 96.7 | 75.2 | 43.0 | 43.5 | 56.4 | 77.4 | 66.5 | 33.7 |
QC | 15.1 | 22.5 | 34.0 | 26.0 | 14.5 | 16.7 | 23.0 | 31.6 | 25.3 | 11.3 |
STF | 26.8 | 35.4 | 47.3 | 38.1 | 15.0 | 21.6 | 28.6 | 36.1 | 29.2 | 10.5 |
CH | 30.0 | 45.5 | 79.1 | 57.0 | 33.3 | 34.9 | 45.4 | 58.0 | 48.4 | 19.4 |
LS | 29.9 | 40.3 | 53.4 | 42.1 | 16.7 | 24.7 | 31.9 | 38.9 | 32.3 | 9.9 |
LZ | 32.1 | 39.4 | 60.8 | 46.8 | 20.2 | 30.4 | 34.9 | 41.4 | 36.0 | 9.1 |
SR | 39.2 | 57.6 | 75.4 | 59.4 | 23.7 | 31.8 | 43.4 | 55.6 | 45.6 | 17.4 |