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48 MAINTENANCE
Substance
Reduction
Average
Influent
Challenge
NSF specified
Challenge
Concentration
Avg %
Reduction
Average
Product Water
Concentration
Max
Permissible
Product Water
Concentration
NSF
Reduction
Requirements
Mercury @ pH
8.5
5.6 μg/L
6.0 μg/L ±
10%
92.5% 0.420 μg/L 2.0 μg/L NA
Cyst*
100,000
cysts/L
Minimum
50,000 cysts/L
>99.99% 10 cysts/L N/A ≥ 99.95%
Atenolol 240 ng/L
200 ± 40%
ng/L
> 95.50% 10.80 ng/L 30 ng/L NA
Carbamazepine
1600 ng/L
1400 ± 40%
ng/L
98.40% 25.60 ng/L 200 ng/L NA
DEET 1600 ng/L
1400 ± 40%
ng/L
97.10% 46.40 ng/L 200 ng/L NA
Trimethoprim 170 ng/L
140 ± 40%
ng/L
>96.80% 5.44 ng/L 20 ng/L NA
Linuron 160 ng/L
140 ± 40%
ng/L
>96.60% 5.44 ng/L 20 ng/L NA
Phenytoin 200 ng/L
200 ± 40%
ng/L
>94.80% 10.40 ng/L 30 ng/L NA
Ibuprofen 400 ng/L
400 ± 40%
ng/L
>94.50% 22.00 ng/L 60 ng/L NA
Naproxen 140 ng/L
140 ± 40%
ng/L
>96.10% 5.46 ng/L 20 ng/L NA
Estrone 120 ng/L
140 ± 40%
ng/L
>96.10% 4.68 ng/L 20 ng/L NA
Bisphenol A 2000 ng/L
2000 ± 40%
ng/L
>98.90% 22.00 ng/L 300 ng/L NA
Nonyl Phenol 1600 ng/L
1400 ± 40%
ng/L
>97.10% 46.40 ng/L 200 ng/L NA
• Based on the use of Cryptosporidium parvum oocysts.
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