Basic HTML Version
12
Parameter Sub-category
G8
ETV
MERC
least 10
4
living bacteria per ml. in minimum concentrations
of 10
3
/ml as culturable
aerobic heterotrophic
bacteria.
density of at least 10
3
/ml as
culturable aerobic
heterotrophic bacteria.
Water Quality
of Intake/
Source Water
N/A
•
Dissolved Organic Carbon
(DOC): >5 mg/l;
•
Particulate Organic Carbon
(POC): >5 mg/l;
•
Total Suspended Solids
(TSS): >50 mg/l.
•
Dissolved Organic
Matter (DOM): min. 6
mg/l as DOC;
•
Particulate Organic
Matter (POM): min. 4
mg/l as POC;
•
Mineral Matter (MM):
min. 20 mg/l;
•
Total Suspended Solids
(TSS): = POM + MM:
min. 24 mg/l;
Dependent season and
location, typical ambient
values include:
•
Dissolved Organic
Carbon (DOC): 2-5 mg/l;
•
Particulate Organic
Carbon (POC): 0.5 - 2
mg/l;
•
Total Suspended Solids
(TSS): 10 - 25 mg/l.
Typically augmented to
increase levels.
Salinity of
Intake/Source
Water
•
Freshwater <3 PSU;
•
10 PSU difference to
brackish and marine
•
Fresh <1 PSU;
•
Brackish 10 - 20 PSU
•
Marine 28 – 36 PSU
Dependent season and
location, typical ambient
values include:
•
Anacostia River
Washington DC <1 PSU
•
Baltimore Harbor 5 – 12
PSU
•
Norfolk Harbor 19 – 25
PSU
Sample
Volume
Zooplankton,
live organisms
≥ 50 µm in size
At least 20 l of intake water
and 1 m
3
of treated water.
Minimum of 3 m
3
concentrated to 1000 ml
per sample.
Between 3 and 10 m
3
,
concentrated to
approximately 1000 ml per
sample.
Protists, live
organisms 10 -
50 µm in size
At least 1 l of intake water and
10 l of treated water.
Minimum of 3 m
3
concentrated to 1000 ml
per sample.
At least 3 l per time
integrated sample.
Bacteria
At least 500 ml of intake water
and 500 ml of treated water.
1000 ml per sample.
At least 3 l per time
integrated sample
Number of
Intake
Samples
Zooplankton,
live organisms
≥ 50 µm in size
Minimum of 3 samples
collected from the treatment
track and 3 samples collected
from the control track.
1 sample immediately prior
to water entry to the
control tank and 1 sample
immediately before entry
to the in-line BWTS, or (if
control and challenge water
are shown to be
representative) one sample
before the splitter.
1 continuous time-
integrated sample collected
from the control and post
treatment lines at uptake.
Split for analysis.
Protists, live
organisms 10 -
50 µm in size
Minimum of 3 samples
collected from the treatment
track and 3 samples collected
from the control track.
1 sample immediately prior
to water entry to the
control tank and 1 sample
immediately before entry
to the in-line BWTS, or (if
control and challenge water
are shown to be
representative) one sample
before the splitter.
1 continuous time-
integrated 90 l sample
collected from the control
and post treatment lines at
uptake. Representative
samples analyzed.
Bacteria
Minimum of 3 samples
collected from the treatment
track and 3 samples collected
from the control track.
1 sample immediately prior
to water entry to the
control tank and 1 sample
immediately before entry
to the in-line BWTS, or (if
control and challenge water
1 continuous time-
integrated sample collected
from the control and post
treatment lines at uptake.
Representative samples
analyzed.