ARCHIVED - Concentrations (µg/L) of disinfection by-products (DBP) in drinking water from Kemptville College and Ottawa for Total Diet Study in 2000

DBP Britannia treatment plant, Ottawa Kemptville College
R T D1 D2 D3 S1 S2 S3 S4 S5
Monochloroacetic acid <0.1 0.5 0.5 0.6 0.9 na <0.1 na na na
Dichloroacetic acid 0.1 11.0 11.2 11.7 13.9 na 0.2 na na na
Trichloroacetic acid 0.1 9.0 8.8 9.5 9.2 na <0.1 na na na
Monobromoacetic acid <0.1 <0.1 <0.1 <0.1 <0.1 na <0.1 na na na
Dibromoacetic acid <0.1 <0.1 <0.1 <0.1 <0.1 na 2.6 na na na
Bromochloroacetic acid <0.1 0.5 0.5 1.0 1.1 na <0.1 na na na
Bromodichloroacetic acid <0.1 0.3 0.5 0.6 <0.1 na <0.1 na na na
Chlorodibromoacetic acid <0.1 <0.1 <0.1 <0.1 <0.1 na <0.1 na na na
Chloroform <0.1 29.8 35.6 40.7 40.9 0.3 0.3 0.3 0.3 0.3
Bromodichloromethane <0.1 3.1 3.3 3.5 3.6 1.4 1.4 1.4 1.4 1.4
Chlorodibromomethane <0.1 0.1 0.2 0.2 0.2 4.3 4.3 4.3 4.3 4.3
Bromoform <0.1 <0.1 <0.1 <0.1 <0.1 5.0 5.0 5.0 5.0 5.1
Total Trihalomethanes <0.1 33.0 39.1 44.4 44.6 10.9 11.0 11.0 10.9 11.1
Trichloroacetonitrile <0.1 <0.1 <0.1 <0.1 <0.1 0.1 0.1 0.1 0.1 0.1
Dichloroacetonitrile <0.1 1.1 1.3 1.2 1.2 0.3 0.3 0.3 0.3 0.3
Bromochloroacetonitrile <0.1 <0.1 <0.1 0.0 0.0 1.0 1.1 1.1 1.1 1.1
Dibromoacetonitrile <0.1 <0.1 <0.1 <0.1 <0.1 1.3 1.4 1.4 1.4 1.5
1,1-Dichloro-2-propanone <0.1 1.1 1.2 1.4 1.4 <0.1 <0.1 <0.1 <0.1 <0.1
1,1,1-Trichloro-2-propanone <0.1 2.6 2.6 1.0 0.8 <0.1 <0.1 0.1 <0.1 0.1
Chloral Hydrate <0.1 1.5 1.7 1.7 1.8 <0.1 <0.1 <0.1 <0.1 <0.1
Chloropicrin <0.1 0.2 0.2 0.2 0.2 <0.1 <0.1 <0.1 <0.1 <0.1
Cyanogen chloride <0.1 1.4 1.9 1.8 1.8 0.1 0.1 0.1 0.1 0.1

Water type:

R
raw water - laboratory
T
plant effluent - laboratory
D1
distribution system - Croydon fire hall
D2
distribution system - Glencairn reservoir
D3
distribution system - Stittsville arena
na
not analysed
S1
Sink #1 - preparation room
S2
Sink #2 - preparation room
S3
Sink #3 - preparation room
S4
Sink #4 - preparation room
S5
Sink #5 - preparation room
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