Nipigon Secondary Wastewater Treatment Report, March 2013. The report was prepared by Town of Nipigon Engineer Geoff Aitken in March, 2013 and summarizes operations of the Nipigon secondary wastewater treatment plant.

2. Nipigon Water Pollution Control Plant
Secondary Treatment
Aerobic Digestion

22. Parameter
TSS mg/L
BOD5 mg/L
CBOD5 mg/L
Total P mg/L
Average Day Flow m3
Peak Flow m3
Ecoli MPN/100mL
TKN mg/L
Ammonia mg/L
Nitrate mg/L
pH
COD mg/L
Ortho P mg/L

23. Design
Parameter
Parameter
Criteria
TSS
TSS mg/L 140
BOD mg/L
BOD5 5
100
CBOD mg/L
CBOD5 5
Total P P
Total
mg/L 5.50
Average Dayay
Flow
Average
D Flow m3 1630
Peak
Flow
Peak Flow m3 4780
Ecoli
Ecoli MPN/100mL
TKN
TKN mg/L
Ammonia
Ammonia mg/L
Nitrate
Nitrate mg/L
pH
pH
COD mg/L
Ortho P mg/L

24. Design 2012
Parameter
Parameter
Criteria Influent
TSS
TSS mg/L 140 123
BOD mg/L
BOD5 5
100 94.8
CBOD mg/L
CBOD5 5
Total P P
Total
mg/L 5.50 2.98
Average Dayay
Flow
Average
D Flow 1630 808.4
m3
Peak
Flow
Peak Flow m3 4780 2749.3
Ecoli
Ecoli MPN/100mL
TKN
TKN mg/L 26.4
Ammonia
Ammonia mg/L
Nitrate
Nitrate mg/L
pH
pH
COD mg/L
Ortho P mg/L

25. Design 2012 C of A
Parameter
Parameter
Criteria Influent Criteria
TSS
TSS mg/L 140 123 15
BOD mg/L
BOD5 5
100 94.8
CBOD mg/L
CBOD5 5
15
Total P P
Total
mg/L 5.50 2.98 0.8
Average Dayay
Flow
Average
D Flow 1630 808.4
m3
Peak
Flow
Peak Flow m3 4780 2749.3
Ecoli
Ecoli MPN/100mL 200
TKN
TKN mg/L 26.4
Ammonia
Ammonia mg/L
Nitrate
Nitrate mg/L
pH
pH 6 to 9.5
COD mg/L
Ortho P mg/L

26. Design 2012 C of A Primary
Parameter
Criteria Influent Criteria Clarifier
TSS mg/L 140 123 15 365.7
BOD5 mg/L 100 94.8
CBOD5 mg/L 15
Total P mg/L 5.50 2.98 0.8
Average Day Flow m3 1630 808.4
Peak Flow m3 4780 2749.3
Ecoli MPN/100mL 200
TKN mg/L 26.4
Ammonia mg/L
Nitrate mg/L
pH 6 to 9.5
COD mg/L 416.2
Ortho P mg/L 0.138

27. Design 2012 C of A Primary Secondary
Parameter
Criteria Influent Criteria Clarifier Clarifier
TSS mg/L 140 123 15 365.7 19.2
BOD5 mg/L 100 94.8
CBOD5 mg/L 15
Total P mg/L 5.50 2.98 0.8
Average Day Flow m3 1630 808.4
Peak Flow m3 4780 2749.3
Ecoli MPN/100mL 200
TKN mg/L 26.4
Ammonia mg/L
Nitrate mg/L
pH 6 to 9.5
COD mg/L 416.2 48.9
Ortho P mg/L 0.138 0.126

28. Design 2012 C of A Primary Secondary 2012
Parameter
Criteria Influent Criteria Clarifier Clarifier Effluent
TSS mg/L 140 123 15 365.7 19.2 9.0
BOD5 mg/L 100 94.8
CBOD5 mg/L 15 2.8
Total P mg/L 5.50 2.98 0.8 0.438
Average Day Flow 1630 808.4
m3
Peak Flow m3 4780 2749.3
Ecoli MPN/100mL 200 11
TKN mg/L 26.4
Ammonia mg/L 1.132
Nitrate mg/L 14.8
pH 6 to 9.5 7.22 to 7.96
COD mg/L 416.2 48.9
Ortho P mg/L 0.138 0.126

29. Loading kg/day
Parameter C of A 2012
Criteria Actual
TSS 40.75 7.30
CBOD5 40.75 2.29
Total P 1.63 0.35

30. In
2012,
the
Nipigon
WPCP
used
11,006
litres
(L)
of
Poly
Aluminum
Chloride,
with
an
average
dosage
of
12.27
mg/L.
The
primary
purpose
is
for
phosphorus
removal
and
a
secondary
benefit
is
pH
control.
Beginning
January
1,
2013
the
Wastewater
Systems
Effluent
RegulaXons
came
into
effect.
The
only
impact
on
2012
was
to
modify
the
sampling
program
for
2013.
IniXal
review
for
the
federal
regulaXon
would
imply
the
following
needs
to
occur
in
2013:
1.
Submit
an
IdenXficaXon
Report
to
the
Effluent
Regulatory
ReporXng
InformaXon
System
by
May
15,
2013;
2.
Prepare
a
Quarterly
Report
and
submit
with
45
days
of
the
end
of
the
quarter,
the
first
report
is
due
May
15,
2013;
3.
Prepare
a
2013
Annual
Report
and
submit
by
February
15,
2014;
and,
4.
Revised
the
sampling
plan
on
January
1,
2013
to
include
analysis
of
un-­‐ionized
ammonia,
pH
and
Total
Chlorine
Residual
in
the
effluent.

32. Total
influent
flow
to
the
Nipigon
WPCP
in
2012
was
295,886
m3
with
an
average
day
flow
of
808.4
m3.
In
2012,
the
average
day
raw
water
flow
to
the
Nipigon
WTP
from
the
Nipigon
River
was
741
m3.
The
influent
flow
to
the
Nipigon
WPCP
is
greater
than
the
raw
water
flow
from
the
Nipigon
WTP.
The
influent
flow
is
approximate
9.3%
greater
than
the
water
taken
from
the
Nipigon
River
and
provided
to
the
WTP.
Generally,
all
sewage
collecXon
systems
experience
inflow
and
infiltraXon.
Typical
design
criteria
for
inflow
and
infiltraXon
is
10%
of
water
flow.
This
is
of
significance
because
it
would
indicate
that
there
are
minimal,
if
any,
combined
sewers
which
was
confirmed
when
the
sanitary
sewer
collecXon
system
was
video
inspected
in
2009
and
2010.
The
new
sludge
storage
lagoon
is
39
m
long
by
33
m
wide
with
a
working
depth
of
2.8
m
with
a
total
sludge
storage
capacity
of
1500
m3
.