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All Test Results

Bottled Water Quality Investigation : All Test Results

October 15, 2008

Click here to see detailed results for follow-up testing on Walmart's Sam's Choice brand and Giant's Acadia brand.

Brand 1 (Woodstock GA)#
Contaminant Concentration
Total Trihalomethanes 4.4 ppb
   Chloroform 3.8 ppb
   Bromodichloromethane 0.6 ppb
Dichloroacetic Acid 2 ppb
Fluoride 0.55 ppm
Nitrate Nitrogen as N 0.1 ppm
Ammonia Nitrogen as N 0.12 ppm
Isobutane* 4.5 ppb
Strontium-90 0.5 +/- 0.4 pCi/L
Other water quality indicator parameters Concentration
Gross Beta 2.4 +/-0.7 pCi/L
Total Dissolved Solids 32 ppm

 

Brand 2 (Washington DC)#
Contaminant Concentration
Nitrate Nitrogen as N 0.23 ppm
Acetaldehyde 23 ppb
Radium-228 0.6 +/- 0.7 pCi/L
Other water quality indicator parameters Concentration
Gross Beta 1.9 +/- 0.7 pCi/L
Total Dissolved Solids 46 ppm

 

Brand 3 (Silver Spring MD)#
Contaminant Concentration
Acetaldehyde 20 ppb
Nonanoic acid* 0.4 ppb
Hexadecanamide* 0.7 ppb
3-Methyl pentane* 0.3 ppb
Hexane* 0.5 ppb
Methylcyclopentane* 0.8 ppb
Cyclohexane* 0.4 ppb
3-Methyl heptane* 0.4 ppb
Octane* 3.3 ppb
Decane* 0.7 ppb

 

Brand 4 (Silver Spring MD)#
Contaminant Concentration
Fluoride 0.26 ppm
Total Arsenic 1 ppb
Nitrate Nitrogen as N 0.25 ppm
Toluene 1.2 ppb
3-Methyl pentane* 0.8 ppm
Hexane* 0.8 ppm
Methylcyclopentane* 1.3 ppm
Other water quality indicator parameters Concentration
Heterotrophic Plate Count 480 CFU/ml
Gross Beta 4.4 +/- 0.8 pCi/L
Total Dissolved Solids 210 ppm

 

Brand 5 (Cloverly MD)#
Contaminant Concentration
Nitrate Nitrogen as N 0.13 ppm
Other water quality indicator parameters Concentration
Heterotrophic Plate Count 1 CFU/ml
Gross Beta 1.8 +/- 0.6 pCi/L
Total Dissolved Solids 20 ppm

 

Brand 6 (Columbia MD)#
Contaminant Concentration
Fluoride 0.15 ppm
Nitrate Nitrogen as N 0.67 ppm
Acetaldehyde 36 ppb
1-Hexene* 0.2 ppb
Hexane* 0.2 ppb
Octane* 0.2 ppb
Acetaminophen 1.3 ppb
Other water quality indicator parameters Concentration
Total Dissolved Solids 46 ppm

 

Brand 7 (Oakland CA)#
Contaminant Concentration
Total Trihalomethanes 23 ppb
   Chloroform 10 ppb
   Bromodichloromethane 8.5 ppb
Chlorodibromomethane 4.2 ppb
Acetaldehyde 11 ppb
3-Methyl pentane* 0.3 ppb
Hexane* 0.7 ppb
Methylcyclopentane* 0.7 ppb
Cyclohexane* 0.5 ppb
3-Methyl heptane* 0.6 ppb
Octane* 4 ppb
Decane* 0.6 ppb
Total Boron 0.09 ppm
Other water quality indicator parameters Concentration
Heterotrophic Plate Count 2 CFU/ml
Gross Beta 4.3 +/- 0.7 pCi/L
Total Dissolved Solids 18 ppm

 

Brand 8 (Oakland CA)#
Contaminant Concentration
Total Trihalomethanes 5.3 ppb
   Chloroform 4.6 ppb
   Bromodichloromethane 0.7 ppb
Toluene 2.2 ppb
Isobutane* 3.8 ppb
2-Methyl-1-propene* 0.6 ppb
Naphthalene* 0.3 ppb
Nonadecane* 0.4 ppb
Heptadecane* 1.2 ppb
Hexadecane* 0.5 ppb
Acetaminophen 1.1 ppt
Total Boron 0.06 ppm
Other water quality indicator parameters Concentration
Total Coliform 1 MPN/100 ml
Heterotrophic Plate Count 1 CFU/ml

 

Brand 9 (Oakland CA)#
Contaminant Concentration
Fluoride 0.55 ppm
Toluene 2.9 ppb
Heptadecane* 0.3 ppb
2-Methyl-1-propene* 0.5 ppb
Other water quality indicator parameters Concentration
Gross Beta 5.8 +/- 0.8 pCi/L
Total Dissolved Solids 22 ppm

 

Brand 10 (Stafford VA)#
Contaminant Concentration
Total Trihalomethanes 22 ppb
   Chloroform 19 ppb
   Bromodichloromethane 2.7 ppb
Dichloroacetic Acid 2 ppb
Trichloroacetic Acid 2 ppb
Fluoride 0.94 ppm
Nitrate Nitrogen as N 1.7 ppm
o-Hydroxybiphenyl* 1 ppb
(Z)-13-Docosenamide* 1.2 ppb
Isobutane* 2.3 ppb
2-Methyl-1-propene* 0.3 ppb
Caffeine 51 ppt
1,7-Dimethylxanthine 10 ppt
Other water quality indicator parameters Concentration
Gross Beta 5.1 +/- 1.5 pCi/L
Total Dissolved Solids 160 ppm

#Locations where each brand of bottled was purchased.

*These chemicals were identified in a broad GC/MS scan that matched peaks observed in the test to a large, standard chemical library; concentrations listed are approximate estimates determined by the analytical lab.