NC0023884_Permit Modification_20130326

r
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Pat McCrory Charles Wakild, P.E.
Governor Director
March 26, 2013
Ms. Sonja Basinger, Environmental Services Manager
Salisbury — Rowan Utilities
1 Water Street
Salisbury, NC 28144
Subject: NPDES Permit Modification
Permit Number NCO023884
Salisbury — Rowan WWTP
Rowan County
Dear Ms. Basinger:
John E. Skvarla, III
Secretary
Division personnel have reviewed and approved your application for minor modification of the subject
permit. Accordingly we are forwarding the attached modified permit page. Please remove the existing
"Effluent Limitations and Monitoring Requirements" page and replace it with the one attached to this
letter.
This modification reduces the effluent monitoring frequencies for Biochemical Oxygen Demand
(BODO, Total Suspended Solids (TSS), Ammonia Nitrogen (NH3-N) and Fecal Coliform from daily
(5/week) to 2/week monitoring. The modification was based upon an evaluation of three years of
facility effluent monitoring data. The facility's performance satisfies the criteria established in the
"DWQ Guidance Regarding the Reduction of Monitoring Frequencies in NPDES Permits for
Exceptionally Performing Facilities" as approved by the Director of the Division of Water Quality on
October 22, 2012, and justifies reduced monitoring for these parameters. The modified monitoring
frequencies will become effective on April 1, 2013.
Please note that modification has only been made to the monitoring frequencies associated with the
facility's existing design capacity/permitted flow (12.5 MGD). Daily monitoring has been retained in
the 20 MGD set of limits and monitoring requirements because they will be associated with lower
effluent limits and a new operational paradigm. After sufficient data have been reported to establish a
performance standard at the expanded flow level, monitoring frequency reduction for the targeted
parameters may be revisited. ,
This modification is issued pursuant to the requirements of North Carolina General Statute 143-215.1
and the Memorandum of Agreement between North Carolina and the U.S. Environmental Protection
Agency dated October 15, 2007 (or as subsequently amended).
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 One
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604 N®rthCaro na
Phone: [phone] FAX: [phone]
Internet: www.ncwaterquality.org alttrlll
An Equal Opportunity \ Affirmative Action Employer y

Ms. Sonja Basinger
NC0023884 Monitoring Frequency Modification 2013
p. 2
It
Please note that this permit is not transferable except after notice to the Division. The Division may
require modification or revocation and reissuance of the permit. This permit does not affect the legal
requirements to obtain other permits which may be required by the Division of Water Quality or permits
required by the Division of Land Resources, the Coastal Area Management Act or any other Federal or
Local governmental permit that may be required.
If you have any questions concerning this permit, please contact Bob Sledge at telephone number (919)
807-6398 or via e-mail at [e-mail].
Sincerely,
�o( Charles Wakild, P.E.
cc: Central Files
Mooresville Regional Office/Surface Water Protection Section
NPDES Permit File
ec: Aquatic Toxicology Unit
EPA Region 4 — Ben Ghosh

Permit NCO023884
A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (12.5 MGD)
During the period beginning April 1, 2013 and lasting until expansion beyond 12.5 MGD or expiration, the
Permittee is authorized to discharge from Outfall 001. Such discharges shall be limited and monitored by the
Permittee as specified below:
PARAMETER '
' 'EFFLUENT LIMITATIONS
MbMTOMNG REQi .IREMtNTS •' '
onthly
Weekly"
Daly
me, sure;"
Sample",
Sample
Average,
'Averse .
Maximum;
Frequency
T e
Locationl ,
Flow2
12.5 MGD
Continuous
Recording
Influent or
Effluent
BOD, 5 day, 20 °C
15/L
.0 mg.5
22mg/L
2/Week
Composite
Influent &
(April 1 to October 31 3
Effluent
BOD, 5 day, 20 °C
30.0 mg/L
45.0 mg/L
2/Week
Composite
Influent &
November 1 to March 31 3
Effluent
Total Suspended Solids3
30.0 mg/L
45.0 mg/L
2/Week
Composite
Influent &
Effluent
NH3 as N
6.0 mg/L
18.0 mg/L
2/Week
Composite
Effluent
(April 1 to October 31
NH3 as N
12.0 mg/L
35.0 mg/L
2/Week
Composite
Effluent
November 1 to March 31
Dissolved Oxygen
Daily avers e > 5.0 m /L
Daily
Grab
Effluent
Fecal Coliform
200/100 mL
400/100 mL
2/Week
Grab
Effluent
(geometric mean
Temperature
Daily
Grab
Effluent
H
> 6.0 and < 9.0 standard units
Daily
Grab
Effluent
Total Residual Chlorine4
28 /L '
Daily
Grab
Effluent
Total Nitrogen
(NO2 + NO3 + TKN)
Weekly
Composite
Effluent
Total Phosphorus'
Weekly
Composite
Effluent
Total Silver
2/month
Composite
Effluent
Total Copper
2/month
Composite
Effluent
Chronic Toxicity5
Quarterly
Composite.
Effluent
Notes:
1. Combined effluent from the Grant Creek and Town Creek treatment trains, and after all treatment processes,
except that flow, BOD and TSS shall be sampled separately at the Town Creek treatment train and the Grant
Creek treatment train. BOD and TSS removal efficiency shall be calculated by mathematically aggregating the
values for the Grant Creek and Town Creek treatment trains. (Refer to A. (6.).)
2. 7.5 MGD at Grant Creek treatment train. 5.0 MGD at Town Creek treatment train.
3. The monthly average effluent BOD5 and Total Suspended Solids concentrations shall not exceed 15% of the
respective influent value (85 % removal).
4. Monitoring only applies if chlorine is added to the treatment system. Facility shallreport all effluent TRC values
reported by a NC certified laboratory including field certified. However, effluent values below 50 µg/L will be
treated as zero for compliance purposes.
5. Chronic Toxicity limit (Ceriodaphnia) at 5.3 % with testing in March, June, September and December (see A. (4)).
There shall be no discharge of floating solids or visible foam in other than trace amounts

Facility Name
NPDES Permit
Receiving Stream
303(d) listed?
Data Period of Review
Reviewed by
Date
BOD5
Data Review Summary
Monitoring Frequency Reduction Evaluation
5,1,s�.,,ry-/ ooan
Ocao 3 $ 8�
Yes No
Basin: oyk"
Permit Limits: Summer Winter
Monthly Avg Weekly Avg. Monthly Avg. Weekly Avg.
/ mg/L mg/L 30 mg/L mg/L
3 Year Average S mg/L
# Daily Values > 'f r mg/L T J,
Meets the review guidance standards for this parameter? /
TSS
Permit Limits: All Months
Monthly Avg. Weeklv Av .
30 mg/L mg/L
3 Year Average 7. ? 5" mg/L
# Daily Values > 60 mg/L - K
Meets the review guidance standards for this parameter? s
NH3-N
Permit Limits: Summer Winter
Monthly Avg. Weekly Avg. Monthly Avg. Weekly Avg_
6 mg/L / � mg/L /.7 mg/L 3 .' mg/L
3 Year Average o • 3 mg/L
# Daily Values > 3 mg/L
Meets the review guidance standards for this parameter? e-.S
Fecal Coliform/Enterococci
Permit Limits: All Months
Monthly Avg. Weekly Avg.
zo � /100 ml -W /100 ml
3 Year Geometric Mean
## Daily Values > ?60 /l
Meets the review guidance standards for this parameter? of
Attach Violation and Enforcement Reports

Permit NCO023884
Cx i 54i n� l'iew
A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (12.5 MGD)
During the period beginning on the effective date of the permit and lasting until expansion beyond 12.5 MGD or
expiration, the Permittee is authorized to discharge from Outfall 001. Such discharges shall be limited and
monitored by the Permittee as specified below:
PARAMETER
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly
Weekly
Daily
Measurement
Sample
Sample
Average
Average
Maximum
Frequency
Type
Location'
Flow'
12.5 MGD
Continuous
RecordingInfluent
or
Effluent
BOD, 5 day, 20 °C
15.0 mg/L
22.5 mg/L
Daily
Composite
Influent &
(April 1 to October 31 3
Effluent
BOD, 5 day, 20 °C
30.0 mg/L
45.0 mg/L
Daily
Composite
Influent &
November 1 to March 31 3
Effluent
Total Suspended Solids3
30.0 mg/L
45.0 mg/L
Daily
Composite
Influent &
Effluent
NH3 as N
6.0 mg/L
18.0 mg/L
Daily
Composite
Effluent
April 1 to October 31
NH3 as N
12.0 mg/L
35.0 mg/L
Daily
Composite
Effluent
November 1 to March 31
Dissolved Oxygen
Daily average > 5.0 m /L
Daily
Grab
Effluent
Fecal Coliform
200/100 mL
400/100 mL
Daily
Grab
Effluent
(geometric mean
Temperature
Daily
Grab
Effluent
H
> 6.0 and < 9.0 standard units
Daily
Grab
Effluent
Total Residual Chlorine4
28 /L
Daily
Grab
Effluent
Total Nitrogen
Weekly
Composite
Effluent
(NO2 + NO3 + TKN)
Total Phosphorus
Weekly
Composite
Effluent
Total Silver
2/month
Com osite
Effluent
Total Copper
2/month
Composite
Effluent
Chronic Toxicit 5
Quarterly
Composite
Effluent
Notes:
1. Combined effluent from the Grant Creek and Town Creek treatment trains, and after all treatment processes,
except that flow, BOD and TSS shall be sampled separately at the Town Creek treatment train and the Grant
Creek treatment train. BOD and TSS removal efficiency shall be calculated by mathematically aggregating the
values for the Grant Creek and Town Creek treatment trains. (Refer to A. (6.).)
2. 7.5 MGD at Grant Creek treatment train. 5.0 MGD at Town Creek treatment train.
3. The monthly average effluent BOD5 and Total Suspended Solids concentrations shall not exceed 15% of the
respective influent value (85 % removal).
4. Monitoring only applies if chlorine is added to the treatment system. Facility shall report all effluent TRC values
reported by a NC certified laboratory including field certified. However, effluent values below 50 µg/L will be
treated as zero for compliance purposes.
5. Chronic Toxicity limit (Ceriodaphnia) at 5.3 % with testing in March, June, September and December (see A. (4)).
There shall be no discharge of floating solids or visible foam in other than trace amounts.

Permit NCO023884
A. (2) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (20 MGD)
During the period beginning after expansion beyond 12.5 MGD and lasting until expiration, the Permittee is
authorized to discharge from Outfall 001. Such discharges shall be limited and monitored by the Permittee as
specified below:
PARAMETER
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly
Average
Weekly
AveraLre
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample Location'
Flow
20.0 MGD
Continuous
Recording
Effluent
BOD, 5 day, 20 °C
1 to October 31 2
5.0 mg/L
7.5 mg/L
Daily
Composite
Influent and Effluent(April
BOD, 5 day, 20 °C
November 1 to March 31 2
10.0 mg/L
15.0 mg/L
Daily
Composite
Influent and Effluent
Total Suspended Solids2
30.0 mg/L
45.0 mg/L
Daily
Composite
Influent and Effluent
NH3 as N
(April 1 to October 31
1.0 mg/L
3.0 mg/L
Daily
Composite
Effluent
NH3 as N
November 1 to March 31
2.0 mg/L
6.0 mg/L
Daily
Composite
Effluent
Dissolved Oxygen
Daily average > 5.0 mg/L
Daily
Grab
Effluent
Fecal Coliform
(geometric mean
200/100 mL
400/100 mL
Daily
Grab
Effluent
Temperature
Daily
Grab
Effluent
pH
> 6.0 and < 9.0 standard units
Daily
Grab
Effluent
Total Residual Chlorine3
28 Ng/L
Daily
Grab
Effluent
Total Nitrogen
(NO2 + NO3 + TKN)
Weekly
Composite
Effluent
Total Phosphorus
Weekly
Composite
Effluent
Total Silver
2/month
Composite
Effluent
Total Copper
2/month
Composite
Effluent
Chronic Toxicit 4
Quarterly
Composite
Effluent
Notes:
1. Effluent: combined effluent from Grant Creek and Town Creek
2. The monthly average effluent BOD5 and Total Suspended Solids concentrations shall not exceed 15% of the
respective influent value (85 % removal).
3. Monitoring only applies if chlorine is added to the treatment system for disinfection. Facility shall report all
effluent TRC values reported by a NC certified laboratory including field certified. However, effluent values
below 50 µg/L will be treated as zero pliance purposes.
4. Chronic Toxicity limit (Ceriodaphnia) t 4.0 �th tests in March, June, September and December (see A. (5)).
There shall be no discharge of floating solids or visible foam in other than trace amqu�n sstl
C,
c
�u
I tau L4 �k
tb �y

Sa/isburyR�waS
February 20, 2013
NCDENR/ DWQ/ Point Source Branch
NPDES Wastewater Permitting Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Re: Salisbury -Rowan Wastewater Treatment Plant (WWTP) Permit No. NCO023884
Minor Permit Modification Request
Dear Sir/ Madam,
Salisbury -Rowan Utilities (SRU) requests the minor modification of the Salisbury -Rowan
WWTP permit for reduced monitoring frequency from 5 days/week to 2 days/week for BOD, TSS
NH3-N and Fecal Coliform parameters for exceptionally performing facilities. Enclosed is the
documentation for three (3) calendar years 2010 to 2012 as required in the DWQGuidance for
Reduction of Monitoring Frequencies in NPDES Permits dated October 22, 2012.
The subject facility and staff meet all of the approval criteria as stated in part B of the
DWQGuidance for Reduction of Monitoring Frequencies in NPDES Permits dated October 22,
2012. In addition, the subject facility is compliant with chronic toxicity (IWC 5.3 %) and the active
permit expires June 30, 2014.
Please contact me at [phone] if you require any clarification or additional
information regarding the subject permit modification request.
Sincerely,
Sonja Basinger
Environmental Services Manager
Enclosure (2010-2012 data and statistical analysis for BOD, TSS, NH3-N and FE
cc: Jim Behmer, Utilities Director, Salisbury -Rowan Utilities
Martin Trexler, WWTP Operations Manager, Salisbury -Rowan Utilities
Michael Parker, Regional Supervisor, MRO/DWQ/SWP
1 Water Street Telephone [phone]
Salisbury, NC 28144 Salisbury -Rowan Utilities Fax [phone]

Salisbury -Rowan WWTP NCO023884
3-Year Yadkin Effluent TSS Summary 2010-2012 Calendar Year
Mo. Avg. Permit
30 m /I
g
50% of Mo. Avg.
15 mg/ I
Limit
Permit Limit
3-Yr. Avg.
7.98 mg/I
200% of 30 mg/I = 90 mg/I
# of Daily results >
0
200%
Weekly average permit
45
mg/I
limit
* Max. weekly average
21.8
mg/I
*No more than two non -monthly average limit violations occurred during the 3 year period.

Salisbury
-Rowan WWTP
Weekly Avg. Date _
NCO023884
TSS r
3-Year Yadkin
Weekly Avg. _Date ".
Effluent
TSS 2010-2012
Weekly Avg.
(mg/1)
Date " _"TSS _ Weekly A
Date _
TSS _.
TSS _ _
1/4/2010
11.8
7.94
6.84
5.45
11.1
12.22
10.38
9.14
5.48
5.48
626
3/15/2010
5
3.54
1.52
6.525
6.3
6.76
5.6
8.4
10.84
5.66
7.34
5/24/2010
5
4.4
5.35
5.08
3.78
4.54
3.88
5.075
4.14
6.16
5.46
8/2/2010
6.9
1/5/2010
7.7
3/16/2010
5
5/25/2010
5
8/3/2010
6.4
1/6/2010
7.7
3/17/2010
2.5
5/26/2010
3.3
8/4/2010
5
1/7/2010
5.1
3/18/2010
2.6
5/27/2010
3.3
8/5/201,0
5.1
1/8/2010
7.4
3/19/2010
2.6
5/28/2010
5.4
8/6/2010
5
5.68
1 /11 /2010
6.6
3/22/2010
2.5
6/1 /2010
7.5
8/9/2010
7.8
1/12/2010
4.7
3/23/2010
2.6
6/2/2010
3.4
8/10/2010
5.5
1/13/2010
7.1
3/24/2010
2.5
6/3/2010
4.4
8/11/2010
8
1/14/2010
9.2
3/25/2010
0
6/4/2010
6.1
8/12/2010
5
1/15/2010
6.6
3/26/2010
0
6/7/2010
4.1
6/13/2010
5.2
6.3
1/19/2010
6
3/29/2010
7.2
6/8/2010
6.4
8/16/2010
4
1/20/2010
4.3
3/30/2010
9
6/9/2010
.5.2
8/17/2010
3.8
1 /21 /2010
5
3/31 /2010
7.2
6/10/2010
3.3
8/18/2010
3.3
1/22/2010
6.5
4/1/2010
2.7
6/11/2010
6.4
8/19/2010
6
1/25/2010
14
4/5/2010
8.6
6/14/2010
3.8
8/20/2010
16.6
6.74
1/26/2010
15.2
4/6/2010
5.8
6/15/2010
4
8/23/2010
3.4
1 /27/2010
M
4/7/2010
5
6/16/2010
3.2
8/24/2010
0
1/28/2010
10.2
4/8/2010 -
7.1
6/17/2010
3.6
8/25/2010
4.5
1/29/2010
6.5
4/9/2010
5
6/18/2010
4.3
8/26/2010
2.5
2/1/2010
6.5
4/12/2010
7.6
6/21/2010
4.3
8/27/201.0
2.8
2.64
2/2/2010
6.8
4/13/2010
9.5
6/22/2010
5.8
8/30/2010
4.2
2/3/2010
15.2
4/14/2010
6.4
6/23/2010
6.2
8/31/2010
3.3
2/4/2010
10.2
4/15/2010
5.3
6/24/2010
3.9
9/1/2010
3.3
2/5/2010
22.4
4/16/2010
5
6/25/2010
2.5
9/2/2010
3.1
2/8/2010
16.6
4/19/2010
7.9
6/28/2010
3.4
9/3/2010
5.4
3.86
2/9/2010
13
4/20/2010
5
6/29/2010
2.5
9/7/2010
11.1
2/10/2010
10
4/21/2010
5
6/30/2010
4.8
9/8/2010
4.9
2/11/2010
6.6
4/22/2010
5.1
7/1/2010
3.9
9/9/2010
6.7
2/12/2010
5.7
4/23/2010
5
7/2/2010
4.8
9/10/2010
4.2
6.725
2/15/2010
15.5
4/26/2010
6.5
7/6/2010
6.1
9/13/2010
7.9
2/16/2010
14.1
4/27/2010
6.1
7/7/2010
4.8
9/14/2010
11
2/17/2010
4.1
4/28/2010
10.5
7/8/2010
4.8
9/15/2010
5.9
2/18/2010
7
4/29/2010
8.1
7/9/2010
4.6
9/16/2010
6.4
2/19/2010
5
4/30/2010
10.8
7/12/2010
4.4
9/1.7/2010
8
7.84
2/22/2010
6.3
5/3/2010
22.6
7/13/2010
3.8
9/20/2010
17
2/23/2010
5.6
5/4/2010
5
7/14/2010
3.3
9/21/2010
5.8
2/24/2010
4.3
5/5/2010
15.4
7/15/2010
3.1
9/22/2010
4.5
2/25/2010
3.9
5/6/2010
6.2
7/16/2010
6.1
9/23/2010
5
2/26/2010
7.3
5/7/2010
5
7/19/2010
6.8
9/24/20.10
4.8
7.42
3/1/2010
5
5/10/2010
5.3
7/20/2010
8.5
9/27/2010
5
3/2/2010
5.1
5/11/2010
5.3
7/21/2010
7.3
9/28/2010
3.4
3/3/2010
5.1
5/12/2010
5
7/22/2010
4.2
9/29/2010
5
3/4/2010
6.9
5/13/2010
7.7
7/23/2010
4
9/30/2010
4.9
3/5/2010
5.3
5/14/2010
5
7/26/2010
5.2
10/1/2010
6
4.86
3/8/2010
5.5
5/17/2010
7.7
7/27/2010
5
10/4/2010
8.7
3/9/2010
6.3
5/18/2010
7.5
7/28/2010
7.4
10/5/2010
9.3
3/10/2010
5.3
5/19/2010
9.3
7/29/2010
4.6
10/6/2010
5
3/11/2010
9.2
5/20/2010
7
7/30/2010
5.1
10/7/2010
10.7
3/12/2010
5
5/21/2010
5.2
10/8/2010
7.8
8.3
g_

F
10/14/2010 1
6.3
10/15/2010
5.2
6.2
10/18/2010
5.9
10/19/2010
7.2
10/20/2010
7.5
10/21 /2010
7.8
10/22/2010
10.4
7.76
10/25/2010
7.5
10/26/2010
6
10/27/2010
5.8
10/28/2010
5.5
10/29/2010
5.9
6.14
11/2/2010
10.5
11/3/2010
11.4
11/4/2010
15.9
11/5/2010
10.1
11.2
11 /8/2010
9.6
-
11 /9/2010
8.3
11/10/2010
6
11/11/2010
5.6
11/12/2010
5.2
6.94
11/15/2010
7.8
11/16/2010
2.9
11/17/2010
0
11/18/2010
3.2
11/19/2010
4.1
3.6
11/22/2010
5.9
11 /23/2010
16.1
Date
TSS
weekly Avg.
: D`ate
TSS
weekly avg.
Date
TS;
12/20/2010
18.5
13.2
2/28/2011
18.2
8.9
5/9/2011
8.1
12/21/2010
8.6
3/1/2011
5.1
5/10/2011
5.1
12/22/2010
12.5
3/2/2011
6.8
5/11/2011
5.3
12/27/2010
12.7
3/3/2011
6.9
5/12l2011
5.1
12/28/2010
9.1
3/4/2011
7.5
5/13/2011
3.8
9.35
10.44
12.36
10
16.66
9.4
12/29/2010
7.6
3/7/2011
12.3
12/30/2010
8
3/8/2011
12.9
1/3/2011
15.2
3/9/2011
9.4
1/4/2011
10.9
3/10/2011
13.7
1 /5/2011
12.8
3/11 /2011
7.2
11.1
1 /6/2011
7.9
3/14/2011
5.9
1/7/2011
5.4
3/15/2011
8.2
1 /10/2011
13.8
3/16/2011
7.9
1/11/2011
11.2
3/17/2011
8.1
1/12/2011
13.8
3/18/2011
8.9
7.8
1 /13/2011
12.7
3/21 /2011
8.7
1/14/2011
10.3
3/22/2011
7.1
1 /18/2011
8.4
3/23/2011
7.1
1 /19/2011
13.2
3/24/2011
6.8
1/20/2011
7.9
3/25/2011
7
7.34
1 /21 /2011
10.5
3/28/2011
8.5
1 /24/2011
18.2
3/29/2011
7
1 /25/2011
22.8
3/30/2011
8.2
1 /26/2011
19
3/31 /2011
10.5
1 /27/2011
13.6
4/1 /2011
12.3
9.3
1 /28/2011
9.7
4/4/2011
11.1
1/31/2011
16.8
4/5/2011
8.3
2/1/2011
11.4
4/6/2011
11.3
2/2/2011
8.6
4/7/2011
8.1
2/3/2011
5.1
4/8/2011
8.2
9.4
2/4/2011
5.1
4/11/2011
10.7
2/7/2011
5
4/12/2011
8.4
11/24/2010
6.7
9.5667
9.28
2/8/2011
8.3
7.22
4/13/2011
7.8
11 /29/2010
12
2/9/2011
6.9
4/14/2011
8.7
11/30/2010
9.4
2/1.0/2011
6.9
4/15/2011
7.9
8.7
12/1/2010
9
2/11/2011
9
4/18/2011
28.9
12/2/2010
8
2/14/2011
10.5
4/19/2011
7.1
12/3/2010
8
2/15/2011
7.7
4/20/2011
6.9
13.78
12.04
12/6/2010
13.8
2/16/2011
12.5
4/21 /2011
6.9
12/7/2010
18.9
2/17/2011
15.9
4/25/2011
13.1
12/8/2010
9.9
2/18/2011
13.6
4/26/2011
7.2
12/9/2010
9.4
2/21 /2011
13.2
4/27/2011
8.4
12/10/2010
16.9
2/22/2011
13.2
4/28/2011
7.9
12/13/2010
6.4
2/23/2011
10.4
4/29/2011
6.8
12/14/2010
6.9
2/24/2011
10.2
5/2/2011
8.9
12/15/2010 6.5 2/25/2011 7.9 1 10.98 5/3/2011 7.2
12/16/2010 8.1 5/4/2011 11.9
12/17/2010 7 '6.98 5/5/2011 6.4
5/6/2011 16 10.08
Avg.
5/18/2011
5
5/19/2011
5.5
5/20/2011
7
6.22
5/23/2011
10.3
5/24/2011
5.6
5/25/2011
5.8
5/26/2011
4.9
5/27/2011
5
6.32
1 1 7
6/9/2011
1 4.9
6/10/2011
5
4.9
6/13/2011
5.2
6/14/2011
3.4
6/15/2011
3.4
6/16/2011
4.7
6/17/2011
4.6
4.26
6/20/2011
5
6/21/2011
8.6
6/22/2011
4.4
6/23/2011
7
6/24/2011
4.6
5.92
1 • 6/28/2011 1 5.7 1
1 7/1 /2011 1 5 1 6.36 1
7/7/2011 3.4
7/8/2011 3.6
7/13/2011 3.4
7/14/2011 3.8
7/15/2011 4.8

Date
1 7/26/2011 1 3 1
7/29/2011
0
1.86
8/1/2011
4.9
8/2/2011
3.3
8/3/20.11
3.8
8/4/2011
3.4
8/5/2011
1 3.8
1 3.84
17.1
8/15/2011
8.3
8/16/2011
6.8
8/17/2011
8.6
8/18/2011
6.8
8/19/2011
6.6
7.42
8/22/2011
9
8/23/2011
8.3
8/24/2011
7.6
8/25/2011
9.5
8/30/2011
10.4
8/31/2011
9.1
9/1/2011
9
9/2/2011
10.6
10.14
9/15/2011 1 10.1
9/16/2011 1 4.7 1 8.28
1 9/23/2011 1 5.4 1 8.44 1
Date
T_ SS
Weekly Avg.
Date
TSS
Weekly Avg.
9/26/2011
5.5
5.62
1 8.72
12/5/2011
22.6
16.9
1 17.6
9/27/2011
5.6
12/6/2011
19.5
9/28/2011
6.6
12/7/2011
10.4
9/29/2011
5.2
12/8/2011
22.6
9/30/2011
5.2
12/9/2011
9.4
10/3/2011
9.7
12/12/2011
23
10/4/2011
6.8
12/13/2011
15.2
10/5/2011
7
12/14/2011
16.8
10/6/2011
14.3
12/15/2011
14
10/7/2011
5.8
12/16/2011
1 19
10/11/2011
6.6
10/12/2011
8.8
10/13/2011
8.9
10/14/2011
6.8 '
7.46
10/17/2011
17.6
10/18/2011
1 7.6
10/25/2011
9
10/26/2011
9
10/27/2011
7.6
10/28/2011
7.6
8.42
10/31/2011
9
11/1/2011
8.3
11/2/2011
9.6
11 /3/2011
9.4
11/8/2011
8.8
11/9/2011
7.9
11/10/2011
9.8
11/11/2011
6.9
8.44
11/14/2011
12.8
11 /18/2011 1 9.9 1 10.56
11 /29/2011
12.8
11 /30/2011
1
10.2
12/1/2011
9.1
12/22/2011
16.6
12/23/2011
5.9
10.28
12/28/2011
11.1
12/29/2011
50.8
12/30/2011 1
3.4
121.767
1/6/2012
2.9
3.275
1/9/2012
3.2
1/10/2012
3.2
1/11/2012
3.4
1/12/2012
5.7
1/13/2012
6.4
4.38
1/17/2012
48
1/18/2012
3.6
1/19/2012
4
1/20/2012
2.6
14.55
1/23/2012
2.9
1/24/2012
7.5
1 /25/2012
3
1 /26/2012 1
3.6
2/1/2012 6
2/2/2012 5.6
2/3/2012 1 4.4 1 6.54
2/10/2012 1 8.4 1 8.26
TSS
2/23/2012 9.9
2/24/2012 6.9 10.2
2/27/2012 13.8
2/28/2012 15.6
3/2/2012
11
12.66
3/5/2012
12.2
3/6/2012
18.2
3/7/2012
11.8
3/8/2012
15.4
3/9/2012
1 9.8
1 13.48
3/16/2012
8.1
10.88
3/19/2012
7.9
3/20/2012
5.4
3/21 /2012
6.1
3/22/2012
5
3/23/2012
4.1
5.7
3/26/2012
5.2
3/27/2012
4.2
3/28/2012
5.9
3/29/2012
5.1
3/30/2012
5.4
1 5.16
4/10/2012
5.9
4/11/2012
5.1
4/12/2012
5.7
4/13/2012
6.5
6.34
4/16/2012
8.9
4/17/2012
7.9
4/18/2012
9.7
4/19/2012
9.3
4/20/2012 1
9.8 1
9.12

Date
TSS- Weekly Avg.
4/23/2012
9.6
4/24/2012
10.5
4/25/2012
13
4/26/2012
9.6
4/27/2012
9 10.34
4/30/2012
9.9
5/1/2012
7.6
Date
TSS
Weekly Avg.
Date
TSS_
Weekly Avg.
7/2/2012
5.6
4.85
4.9
9/10/2012
8.6
10.74
7/3/2012
4.6
9/11/2012
14.2
7/5/2012
3.8
9/12/2012
8.1
7/6/2012
5.4
9/13/2012
14
7/9/2012
5.5
9/14/2012
8.8
7/10/2012
3.8
9/17/2012
8.4
7/11/2012
5
9/18/2012
7.5
7/12/2012
5.2
9/19/2012
7.8
7/13/2012
5
9/20/2012
7.3
7.46
7.16
10.8
6
7/16/2012
7.9
'.2
7/17/2012
5.2
'.1
7/18/2012
5.5
I.8
7/19/2012
6.5
i.4
7/20/2012
7.5
6.52
;.3
7/23/2012
8.5
I.2
7/24/2012
6.9
11
7/25/2012
7
2.7
7/26/2012
7.9
2.1
7/27/2012
7.1
7.48
10
7/30/2012
8.2
2.6
7/31/2012
6.3
'.9
8/1/2012
6
5/23/2012
1 11.8
5/24/2012
8
5/25/2012
9.8
10.02
5/29/2012
11.2
5/30/2012
8.1
5/31 /2012
7.5
6/1/2012
9.2
9
6/4/2012
7
6/5/2012
12.2
6/6/2012
7.3
6/7/2012
30.5
6/12/2012
5.7
6/13/2012
9.1
6/14/2012
8.5
6/15/2012
5.5
6.92
6/18/2012
6.3
6/19/2012
5.7
6/20/2012
7.7
6/21 /2012
5.2
6/22/2012
4.3
5.84
6/26/2012
3.8
6/27/2012
3.6
6/28/2012
4.2
6/29/2012
4.4
4.06
8/9/2012 5
8/10/2012 6.3
8/13/2012 6.3
8/14/2012 6.1
8/.15/2012 6.1
8/16/2012 1 6.6
8/21 /2012 8.8
8/22/2012 8.4
8/23/2012 8.5
8/24/2012 7.8
8/27/2012 7.3
8/28/2012 7.5
8/29/2012 7.5
8/30/2012 7.9
8/31/2012 7.9
9/4/2012 8.2
9/5/2012 8.2
9/6/2012 8.7
9/7/2012 8.9
6.52
9/25/2012
8.2
9/26/2012
7.8
9/27/2012
7.4
9/28/2012
8
7.9
10/1/2012
8.7
10/2/2012
7.3
10/3/2012
10.5
10/4/2012
9.2
10/5/2012
8.5
8.84
10/8/2012
10.9
10/9/2012
9.1
10/10/2012
10.2
10/11/2012
9.5
10/12/2012
9.2
9.78
10/15/2012
10.4
10/16/2012
8.9
10/17/2012
9.6
10/23/2012 13.:
10/24/2012 11
10/25/2012 9.9
10/26/2012 8.6
11 /1 /20,12
14.2
11/2/2012
13.4
12.48
11 /5/2012
9.6
11 /6/2012
8.5
11 /7/2012
8.4
11/8/2012
10.2
11/9/2012
6.2
8.58
11/12/2012
6.3
11/13/2012
j 5.9
1
11/14/2012
5.9
Date
TSS
11/19/2012
8.3
11 /20/2012
9
11/21/2012
8.9
11 /26/2012
12.1
11 /27/2012
6.8
11 /28/2012
7.4
11 /29/2012
9
11 /30/2012
7.9
12/3/2012
9.6
12/4/2012
14.9
12/5/2012
9.4
12/6/2012
14.2
1217/2012
13.8
12/10/2012
7.2
12/11/2012
10.1
12/12/2012
5.1
12/13/2012
6.2
12/14/2012
8.2
12/17/2012
10.8
12/18/2012
6.6
12/19/2012
6.3
12/20/2012
8.6
12/21/2012
11.2
12/26/2012
9.6
12/27/2012
10.1
12/28/2012
7.6
12/31/2012
13.4
Neekly Avg.
8.7
9.1

Salisbury -Rowan WWTP NC0023884
3-Year Yadkin Effluent BOD Summary 2010-2012 Calendar Year
mg I
mg I
Monthly Avg.
Permit Limit
50% of Summer
(Summer)
15
Permit Limit
3
3-Yr. Summer Avg.
3.75
Monthly Avg.
Permit Limit
50% of Winter
(Winter) 30
Permit Limit
6
3-Yr. Winter Avg.
5.15
200% of 15 mg/I
# of Daily results
0
Summer
= 45 mg/I
> 200%
200% of 30 mg/I
# of Daily results
0
Winter
= 90 mg/I
> 200%
Weekly Avg.
22.5
mg/I
Summer
Permit Limit
Weekly Avg.
45
mg/I
Winter
Permit Limit
rim _
* Max. weekly
11.3
mg/I
-
average
*No more than two non -monthly average limit violations occurred during the 3 year period.

Salisbury -Rowan WWTP NCO023884 3-Year Yadkin Effluent BOD 2010-2012 (mg/1)
Date BOD Weekly Avg. Date BOD Weekly Avg. Date BOD Weekly Avg. Date BOD Weekly Avg.
1/4/2010
5.7
5.06
3/15/2010
3.4
1 2.98
5/24/2010
5.1
3.54
8/2/2010
4
3.04
1/5/2010
4.3
3/16/2010
3.3
5/25/2010
2.6
8/3/2010
3.4
1/6/2010
4.8
3/17/2010
2.4
5/26/2010
3.1
8/4/2010
2.3
1/7/2010
5.9
3/18/2010
2.4
5/27/2010
2.7
8/5/2010
3
1/8/2010
4.6
3/19/2010
3.4
5/28/2010
4.2
8/6/2010
2.5
1 /11 /2010
4.4
3/22/2010
4.3
6/1 /2010
12
8/9/2010
4.3
1/12/2010
3.5
1/13/2010
5.2
1/14/2010
3.7
1/15/2010
4.3
4.22
1/19/2010
7.1
1 /20/2010
5.7
1 /21 /2010
2.6
1 /22/2010
3.4
4.7
1 /26/2010
11.8
1 /27/2010
13.3
1 /28/2010
12.5
1 /29/2010
4.4
9.64
3/23/2010
1 3.1
3.12
7.3
3/24/2010
2.6
3/25/2010
2.8
3/26/2010
2.8
3/29/2010
6.5
3/30/2010
11.8
3/31 /2010
7.3
4/1/2010
3.6
2/2/2010
3.9
2/3/2010
6.2
2/4/2010
12.7
2/5/2010
22
11.325
2/8/2010
6.9
2/9/2010
5.5
2/10/2010
5.3
2/11 /2010
3.4
2/12/2010
3.4
4.9
2/15/2010
6.8
2/16/2010
4.9
2/17/2010
5.1
2/18/2010
4
2/19/2010
0
4.16
2/23/2010
4
2/24/2010
4.6
2/25/2010
4.3
2/26/2010
4.6
4.28
3/1/2010
6.3
3/2/2010
3.7
3/3/2010
3.5
3/4/2010
4.1
3/5/2010
3.9
1 4.3
3/9/2010
3.6
3/10/2010
3.4
3/11/2010
4
3/12/2010
3.3
3.56
4/6/2010
5.3
4/7/2010
4.2
4/8/2010
4.7
4/9/2010
5.1
5.08
4/13/2010
6.5
4/14/2010
5.8
4/15/2010
5.8
4/16/2010
4.8
5.92
4/19/2010
4.7
4/20/2010
4.3
4/21 /2010
3.7
4/22/2010
3.4
4/23/2010
3.8
1 3.98
4/27/2010 1 3.8
4/28/2010 1 4.6
4/30/2010
4.8
4.94
5/3/2010
6.9
5/4/2010
4.7
5/5/2010
6.2
5/6/2010
5.6
5/7/2010
4.1
5.5
5/11/2010
4.1
5/12/2010
3.9
5/13/2010
4.9
5/14/2010
4.2
5.18
5/17/2010
5.6
5/18/2010
9.8
5/19/2010
6.8
5/20/2010
5.2
5/21 /2010
3.9
1 6.26
6/2/2010
1 3.2
6/3/2010
3.9
6/4/2010
4.5
5
6/7/2010
10
6/8/2010
3.6
6/9/2010
2.5
6/10/2010
2.5
6/11/2010
4.6
4.
/14/2 110
4.4
6/15/2010
3.6
6/16/2010
3.6
6/17/2010
2.7
6/18/2010
3.6
3.
6/21/2010
12.5
6/22/2010
5.8
6/23/2010
4
6/24/2010
2.3
6/25/2010
2.1
5.
.9
64
8/10/2010
2.9
3.12
1 3.22
8/11/2010
3.8
8/12/2010
2.2
8/13/2010
2.4
8/16/2010
2.4
8/17/2010
0
8/18/2010
0
8/19/2010
2.9
8/20/2010
1 10.8
58
34
6/29/2010
2
6/30/2010
3.5
7/1/2010
3.5
7/2/2010
3.9
3.14
7/7/2010
4.4
7/8/2010
3.8
7/9/2010
4
6.375
7/12/2010
4.6
7/13/2010
2.4
7/14/2010
2.2
7/15/2010
0
7/16/2010
4.4
2.72
7/19/2010
5.2
7/20/2010
5.9
7/21/2010
4.4
7/22/2010
3
7/23/2010
3.2
4.34
7/27/2010
2.7
7/28/2010
4.9
7/29/2010
3.6
7/30/2010
3.2
3.66
Shaded = Winter months
-----------------------------�
8/24/2010 3.1
8/25/2010 3.1
8/26/2010 0
8/27/2010 3 2.44
8/30/2010
4.5
8/31 /2010
2.6
9/1/2010
2.1
9/2/2010
0
9/3/2010
0
1.84
9/8/2010
3
9/9/2010
2.8
9/10/2010
2.9
3.4
9/13/2010
6.6
9/14/2010
4.7
9/15/2010
4
9/16/2010
3.3
9/17/2010
3.9
4.5
9/21 /2010
4.1
9/22/2010
3.5
9/23/2010
2.8
9/24/2010
3.7
3.88
9/27/2010
8
9/28/2010
4
9/29/2010
4.5
9/30/2010
3.5
10/1/2010
1 3.7
1 4.74
10/5/2010 4.6
10/6/2010 6.1
10/7/2010 4.7
10/8/2010 4.9 4.94

Date
BOD
Weekly Avg.
Date I
BOD
Weekly Avg.
Date
BOD
Weekly Avg.
Date
BOD IWeekly
Avg.
10/11/2010
6.3
12/20/2010
6.7
6.3
2/28/2011
13.7
5/9/2011
6.1
10/12/2010
5.9
12/21/2010
5.6
3/1/2011
7.9
5/10/2011
2.9
10/13/2010
6
12/22/2010
6.6
3/2/2011
6.2
5/11/2011
3.8
10/14/2010
5.5
12/27/2010
5.7
3/3/2011 1
6.6
5/12/2011
2.9
10/15/2010
5.2
5.78
4.84
466
12/28/2010
5.9
5.575
5.44
3/4/2011
7
8.28
6.6
5.5
5/13/2011
2
3.54
10/18/2010
6.8
12/29/2010
5.4
3/7/2011
8
5/16/2011
4.8
10/19/2010
4.2
12/30/2010
5.3
3/8/2011
6.7
5/17/2011
2.5
10/20/2010
4.4
1/3/2011
6.3
3/9/2011
7
5/18/2011
0
10/21/2010
4.5
1/4/2011
5.2
3/10/2011
7.4
5/19/2011
3.6
10/22/2010
4.3
1 /5/2011
5.6
3/11 /2011
3.9
5/20/2011
2.1
2.6
10/25/2010
4.3
1/6/2011
4.8
3/14/2011
5.5
5/23/2011
5.3
10/26/2010
6.4
1/7/2011
5.3
3/15/2011
5.7
5/24/2011
2.2
10/27/2010
4.6
1/10/2011
7.2
3/16/2011
5.3
5/25/2011
3.6
10/28/2010
4.2
1/11/2011
5.5
3/17/2011
5.3
5/26/2011
3.6
10/29/2010
38
1/12/2011
5.7
3/18/2011
5.7
5/27/2011
2.6
3.46
4.84
4.5
3.4
4.6333
5.36
6.36
4.98
6.66
6.2
9.6
5.26
5.08
10.44
1 9.52
4.62
5.78
5.64
4.9
6.3
4.52
6.2
11 /1 /2010
4.2
1 /13/2011
7.5
3/21 /2011
5
5/31 /2011
4.9
11 /2/2010
3.8
1 /14/2011
7.4
3/22/2011
4.3
6/1 /2011
3.5
11/3/2010
4.7
1/18/2011
6.2
3/23/2011
5
6/2/2011
3.1
11 /4/2010
6.1
1 /19/2011
7.3
3/24/2011
4.4
6/3/2011
2.7
3.55
11 /5/2010
5.4
1 /20/2011
5.2
3/25/2011
4.4
6/6/2011
3.6
11 /8/2010
4.5
1 /21 /2011
6.1
3/28/2011
5.8
6/7/2011
2.6
11 /9/2010
4.6
1 /24/2011
10.2
3/29/2011
5.5
6/8/2011
2.6
11/10/2010
4.2
1/25/2011
12.9
3/30/2011
4.9
6/9/2011
3.8
11/11/2010
5
1/26/2011
10.6
3/31/2011
5.7
6/10/2011
3.7
3.26
11/12/2010
4.2
1/27/2011
7.5
4/1/2011
7
6/13/2011
2.5
11/15/2010
4.1
1/28/2011
6.8
4/4/2011
7.5
6/14/2011
2.2
11 /16/2010
3.4
1 /31 /2011
7.7
4/5/2011
5
6/ 15/2011
2.2
11/17/2010
2.4
2/1/2011
6.1
4/6/2011
6.4
6/16/2011
0
11/18/2010
3.2
2/2/2011
4.4
4/7/2011
4.4
6/17/2011
2.5
1.88
11/19/2010
3.9
2/3/2011
4.2
4/8/2011
4.9
6/20/2011
4.6
11 /22/2010
3.7
2/4/2011
3.9
4/11 /2011
6.7
6/21 /2011
4.3
11/23/2010
5.6
2/7/2011
6.4
4/12/2011
4.4
6/22/2011
3.6
11/24/2010
4.6
2/8/2011
5.6
4/13/2011
4.2
6/23/2011
4.2
11/29/2010
7
2/9/2011
4.5
4/14/2011
5.5
6/24/2011
3.3
4
11/30/2010
4.3
2/10/2011
4.2
4/15/2011
3.7
6/27/2011
3.3
12/1/2010
5
2/11/2011
4.7
4/18/2011
12.8
6/28/2011
3.3
12/2/2010
4.3
2/14/2011
6.8
4/19/2011
4.1
6/29/2011
4.2
12/3/2010
6.2
2/15/2011
6.5
4/20/2011
4
6/30/2011
3.4
12/6/2010
5.6
2/16/2011
7.2
4/21/2011
4.3
7/1/2011
3
3.44
12/7/2010
7.4
2/17/2011
16.8
4/25/2011
7.3
7/5/2011
4.8
12/8/2010
6.1
2/18/2011
14.9
4/26/2011
3.7
7/6/2011
3
12/9/2010
5.1
2/21 /2011
16.3
4/27/2011
3.6
7/7/2011
2.5
12/10/2010
7.6
2/22/2011
9
4/28/2011
3.9
7/8/2011
2.4
3.175
12/13/2010
5.1
2/23/2011
7.8
4/29/2011
4.1
7/11/2011
3.5
12/14/2010
5
2/24/2011
7.3
5/2/2011
12.3
7/12/2011
2.4
12/15/2010
4.6
2/25/2011
7.2
5/3/2011
3.8
7/13/2011
2.4
12/16/2010
5
5/4/2011
5
7/14/2011
2.6
12/17/2010
5.2
5/5/2011
3.4
7/15/2011
2.6
2.7
5/6/2011
6.5

Date
BOD
Weekly Avg.
Date
I BOD
Weekly Avg.
Date
BOD
IWeekly Avg.
Date
BOD
IWeekly Avg.
7/18/2011
4.1
2.82
9/26/2011
3
2.96
12/5/2011
10
7.26
2/13/2012
4.2
5.9
7/19/2011
3.4
9/27/2011
2.6
12/6/2011
7
2/14/2012
6.6
7/20/2011
2.4
9/28/2011
2.9
12/7/2011
4.9
2/15/2012
6.6
7/21/2011
2.1
9/29/2011
3.1
12/8/2011
9
2/16/2012
6.3
7/22/2011
2.1
9/30/2011
3.2
12/9/2011
5.4
2/17/2012
5.8
7/25/2011
4.2
10/3/2011
5.6
12/12/2011
6.8
2/20/2012
7
7/26/2011
2.1
1.66
0.680
10/4/2011
3.8
4.66
3.86
12/13/2011
5.5
6.42
5.52
6.9333
7/27/2011
0
10/5/2011
3.8
12/14/2011
7.5
7/28/2011
0
10/6/2011
6.1
12/15/2011
5.5
7/29/2011
2
10/7/2011
4
12/16/2011
6.8
8/1 /2011
3.4
10/10/2011
4.8
12/19/2011
5
8/2/2011
0
10/11 /2011
3.7
12/20/2011
6.4
8/3/2011
0
10/ 12/2011
3.6
12/21 /2011
7.5
8/4/2011
0
10/13/2011
3.6
12/22/2011
6.1
8/5/2011
0
10/14/2011
3.6
12/23/2011
2.6
8/8/2011
0
10/17/2011
5.1
12/28/2011
4.7
8/9/2011
4.1
10/18/2011
4
12/29/2011
12.2
8/10/2011
2.5
10/19/2011
4.3
12/30/2011
3.9
8/11/2011
2.6
10/20/2011
3.3
1/3/2012
3.9
8/12/2011
2.7
2.38
2
10/21/2011
3.8
4.1
1 4.24
8/15/2011
3.7
10/24/2011
5.1
8/16/2011
0
10/25/2011
3.9
8/17/2011
2.3
10/26/2011
4.4
8/18/2011
2
10/27/2011
3.5
8/19/2011
2
10/28/2011
1 4.3
8/23/2011
2
8/24/2011
2.3
8/25/2011
2.5
8/26/2011
2.5
2.38
8/29/2011
4.9
8/30/2011
3
8/31/2011
2.9
9/1/2011
3.3
9/2/2011
3.2
3.46
9/7/2011
3.8
9/8/2011
3
9/9/2011
3.6
3.75
9/12/2011
3.6
9/13/2011
4.3
9/14/2011
2.8
9/15/2011
4.4
9/16/2011
3.2
3.66
9/19/2011
4.7
9/20/2011
3.8
9/21/2011
3.9
9/22/2011
4.3
9/23/2011
3.8
1 4.1
11/1/2011
1 4.6
11/2/2011
4.6
11 /3/2011
4.8
11 /4/2011
6.8
5.1
11/7/2011
6
11/8/2011
4.5
11/9/2011
3.8
11/10/2011
3.6
11/11/2011
2.7
1 4.12
11/15/2011
3.9
11/16/2011
3.1
11/17/2011
5.7
11/18/2011
2.8
4.2
11/21/2011
5.6
11 /22/2011
3.5
11/23/2011
3.8
4.3
11 /29/2011 4.1
11 /30/2011 3.5
12/1/2011 4.1
12/2/2011 4.1 4.1
1 /4/2012
3.3
1 /5/2012
3.3
1 /6/2012
3
3.375
1 /9/2012
3.7
1/10/2012
3.4
1/11/2012
3.6
1/12/2012
3.6
1/13/2012
3.4
3.54
1/17/2012
13.1
1/18/2012
3.1
1/19/2012
3.2
1 /20/2012
3.1
5.625
1 /24/2012
3.6
1 /25/2012
3.2
1/26/2012
3.4
1/27/2012
6.1
3.8
1 /30/2012
5.6
1/31/2012
5
2/1/2012
3.9
2/2/2012
4
2/3/2012
4.8
4.66
2/6/2012
4.4
2/7/2012
5.6
2/8/2012
6.2
2/9/2012
3.8
2/10/2012
4.6
4.92
2/21 /2012
6.1
2/22/2012
4.9
2/23/2012
4.4
2/24/2012
3.9
5.26
2/27/2012
5.6
2/28/2012
5.5
2/29/2012
4.4
3/1/2012
4.4
3/2/2012
4.4
4.86
3/5/2012
4.7
3/6/2012
5.5
3/7/2012
4.4
3/8/2012
5.5
3/9/2012
4.1
4.84
3/12/2012
4.7
3/13/2012
3.9
3/14/2012
3.8
3/15/2012
4.2
3/16/2012
3.9
4.1
3/19/2012
3.7
3/20/2012
2.2
3/21 /2012
2.8
3/22/2012
2.4
3/23/2012
2.1
2.64
3/27/2012
2.2
3/28/2012
2.8
3/29/2012
2.4
3/30/2012
3.3
2.68
4/2/2012
4.8
4/3/2012
3.1
4/4/2012
3
4/5/2012
3.2
1 3.525
4/10/2012
3.2
4/11/2012
3.1
4/12/2012
2.9
4/13/2012
3.5
3.38
4/16/2012
3.6
4/17/2012
3
4/18/2012
3.5
4/19/2012
3.1
4/20/2012
i 3.3
3.3

Date SOD - Weekly Avg. Date I BOD Weekly Avg. Date BOD Weekly Avg.
4/23/2012
3.9
3.64
3.1
3.1
5.02
7/2/2012
5.6
3.3
2.86
3.42
3.24
9/10/2012
4
3.86
2.96
3.96
3.66
4/24/2012
3.4
7/3/2012
2
9/11/2012
4.8
4/25/2012
3.8
7/5/2012
2.6
9/12/2012
3.1
4/26/2012
4.1
7/6/2012
3
9/13/2012
4.2
4/27/2012
3
7/9/2012
4.1
9/14/2012
3.2
4/30/2012
3.5
7/10/2012
2.3
9/17/2012
3.8
5/1/2012
2.8
7/11/2012
2.3
9/18/2012
3.1
5/2/2012
2.6
7/12/2012
2.7
9/19/2012
2.8
5/3/2012
3.2
7/13/2012
2.9
9/20/2012
2.7
5/4/2012
3.4
7/16/2012
4.2
9/21/2012
2.4
5/7/2012
4.1
7/17/2012
2.9
9/24/2012
4.4
5/8/2012
3.1
7/18/2012
2.8
9/25/2012
4.6
5/9/2012
3.2
7/19/2012
3
9/26/2012
3
5/10/2012
2.6
7/20/2012
4.2
9/27/2012
3.2
5/11/2012
2.5
7/23/2012
3.9
9/28/2012
4.6
5/14/2012
3.9
7/24/2012
3.4
10/1/2012
3.7
5/15/2012
5.5
7/25/2012
2.8
10/2/2012
3.1
5/16/2012
6.2
7/26/2012
2.9
10/3/2012
3.6
5/17/2012
4.7
7/27/2012
3.2
10/4/2012
3.4
5l18/2012
4.8
7/30/2012
4.1
10/5/2012
4.5
5/21/2012
4.7
4.16
5.55
5/22/2012
3.8
5/23/2012
4.3
5/24/2012
3.6
5/25/2012
4.4
5/29/2012
10.4
5/30/2012
3.5
5/31 /2012 1
3.4
6/1/2012
1 4.9
6/5/2012
3.8
6/6/2012
3.3
6/7/2012
10.3
6/8/2012
3.3
4.66
3/11/2012
3.8
3/12/2012
3.1
3/13/2012
3.6
3/14/2012
4.2
3/15/2012
1 2.9
3.52
6/19/2012
1 3.1
6/20/2012
3.3
6/21 /2012
3.8
6/22/2012
3.2
3.42
6/25/2012
3.5
6/26/2012
2.6
6/27/2012
2.4
6/28/2012
3
6/29/2012
3.5
3
7/31/2012
4
8/1/2012
2.7
8/2/2012
2.6
8/3/2012
2.6
3.2
8/6/2012
3.1
8/7/2012
3.2
8/8/2012
2
8/9/2012
2.1
8/10/2012
3.2
2.72
8/13/2012
2.8
8/14/2012
2.8
8/15/2012
2.5
8/16/2012
2.7
8/17/2012
4.1
2.98
10/8/2012
3.6
3.38
10/9/2012
2.6
10/10/2012
3.7
10/11/2012
3.3
10/12/2012
3.7
10/15/2012
3.6
10/16/2012
3.6
10/17/2012
3.9
10/18/2012
3.8
8/21 /2012
1 4.1
8/22/2012
3.5
8/23/2012
3.8
8/24/2012
3.9
3.86
8/27/2012
4.6
8/28/2012
3.8
8/29/2012
4
8/30/2012
3.8
8/31 /2012
4
4.04
9/5/2012 3.3
9/6/2012 4.7
9/7/2012 3.1
1 10/19/2012 1 3.9 1 3.76 1
10/23/2012
4.3
10/24/2012
4.7
10/25/2012
3.4
10/26/2012
2.9
3.86
10/29/2012
4
10/30/2012
3.8
10/31 /2012
4.1
11/1/2012
4.4
11 /2/2012
1 4.5
4.16
11 /6/2012 3.7
11 /7/2012 3.6
11 /8/2012 4.3
11 /9/2012 3.2
Date
BOD
11/12/2012
3.8
11/13/2012
3.3
11/14/2012
4.7
11/15/2012
4.4
11/16/2012
4.4
11/19/2012
4.3
11 /20/2012
5.3
11 /21 /2012
4.2
11 /26/2012
6.3
11 /27/2012
3.7
11 /28/2012
3.8
11 /29/2012
4.4
11 /30/2012
5
12/3/2012
4.6
12/4/2012
8.7
12/5/2012
5.6
12/6/2012
8.3
12/7/2012
6.7
12/10/2012
4.8
12/11 /2012
5.4
12/12/2012
4
12/13/2012
3.6
12/14/2012
5.2
12/17/2012
5.7
12/18/2012
4.6
12/19/2012
4.5
12/20/2012
4.6
12/21 /2012
5.8
12/26/2012
8.6
12/27/2012
4.8
12/28/2012
3.9
12/31 /2012
6.3
Neekly Avg.
4.6
4.6
5.7667

Salisbury -Rowan WWTP NCO023884
3-Year Yadkin Effluent Ammonia Summary 2010-2012 Calendar Year
mg/I
mg/I
Monthly Avg.
Permit Limit
50% of Summer
(Summer) 6
Permit Limit
3
NonAvg.
3-Yr. Summer Avg.
0.26
Permit Limit
50% of Winter
(Winter) 12
Permit Limit
6
3-Yr. Winter Avg.
0.35
200% of 6 mg/I =
# of Daily results
0
Summer
18 mg/I
> 200%
200% of 12 mg/I
# of Daily results
0
Winter
= 36 mg/I
> 200%
Weekly Avg.
18
mg/l
Summer
Permit Limit
Weekly Avg.
35
mg/l
Winter
Permit Limit
* Max. weekly
1.8
mg/I
average
*No more than two non -monthly average limit violations occurred during the 3 year period.

Salisbury -Rowan WWTP N00023884 3-Year Yadkin Effluent Ammonia 2010-2012
Date
NH3N
week)
1 /4/2010
0.21
1 /5/2010
0.18
1 /6/2010
0.2
1 /7/2010
0.19
1 /8/2010
0.2
0.196
1/11/2010
0.19
1/12/2010
0.19
1/13/2010
0.2
1/14/2010
0.2
1/15/2010
0.19
0.194
1/19/2010
0.72
1/20/2010
0.14
1/21/2010
0.18
1 /22/2010
0.2
0.31
1 /26/2010
1.4
1 /27/2010
3.8
1 /28/2010
3
1/29/2010
0.16
1.776
2/1/2010
0.15
2/2/2010
0.16
2/3/2010
0.16
2/4/2010
1.2
2/5/2010
4.6
1.254
2/8/2010
0.12
2/9/2010
0.18
2/10/2010
0.18
2/11/2010
0.16
2/12/2010
0.14
0.156
2/15/2010
0.16
2/16/2010
0.18
2/17/2010
0.17
2/18/2010
0.14
2/19/2010
0.18
0.166
y Avg.
Date
NH3N
weekly Avg. I
Date
NH3N
weekly Avg.
Date
3/15/2010
0.15
0.17
5/24/2010
0.34
0.278
8/2/2010
3/16/2010
0.18
5/25/2010
0.32
8/3/2010
3/17/2010
0.16
5/26/2010
0.28
8/4/2010
3/18/2010
0.18
5/27/2010
0.24
8/5/2010
3/19/2010
0.18
5/28/2010
0.21
8/6/2010
3/22/2010
0.26
6/1/2010
0.38
8/9/2010
3/23/2010 1
0.25
3/24/2010
0.22
3/25/2010
0.22
3/26/2010
0.2
0.23
2/23/2010
0.21
2/24/2010
0.22
2/25/2010
0.22
2/26/2010
0.24
0.222
3/1/2010
0.27
3/2/2010
0.26
3/3/2010
0.27
3/4/2010
0.24
3/5/2010
1 0.23
1 0.254
3/9/2010
0.2
3/10/2010
0.22
3/11/2010
0.18
3/12/2010
0.18
0.204
3/30/2010
0.7
3/31 /2010
0.5
4/1/2010
0.18
0.415
4/5/2010
0.24
4/6/2010
0.26
4/7/2010
0.24
4/8/2010
0.23
4/9/2010
0.23
0.24
4/12/2010
0.28
4/13/2010
0.24
4/14/2010
0.23
4/15/2010
0.22
4/16/2010
0.2
0.234
4/20/2010
0.22
4/21/2010
0.23
4/22/2010
0.25
4/23/2010
0.22
0.232
4/26/2010
0.38
4/27/2010
0.34
4/28/2010
0.31
4/29/2010
0.29
4/30/2010
0.3
0.324
5/3/2010
0.3
5/4/2010
0.3
5/5/2010
0.29
5/6/2010
0.34
5/7/2010
0.26
0.298
5/10/2010
0.4
5/11/2010
0.32
5/12/2010
0.26
5/13/2010
0.26
5/14/2010
0.3
0.308
5/17/2010
0.3
5/18/2010
0.52
5/19/2010
0.33
5/20/2010
0.27
5/21 /2010
0.32
0.348
6/2/2010
0.23
6/3/2010
0.21
6/4/2010
0.19
0.252
6/7/2010
0.38
6/8/2010
0.14
6/9/2010
0.16
6/10/2010
0.18
6/11/2010
0.26
0.224
NH3N I weekly Avg
0.34
0.25
0.44
0.31
0.33 0.334
5
8/10/2010
0.2
8/11/2010
0.28
8/12/2010
0.25
8/13/2010
0.18
0.226
8/16/2010
0.22
8/17/2010
0.22
8/18/2010
0.16
8/19/2010
1 0.14
8/20/2010
1 0.32
1 0.212
6/15/2010
0.28
6/16/2010
0.27
6/17/2010
0.26
6/18/2010
0.26
0.262
6/22/2010
0.22
6/23/2010
0.2
6/24/2010
0.18
6/25/2010
0.22
0.23�
6/28/2010
0.17
6/29/2010
0.2
6/30/2010
0.24
7/1/2010
0.22
7/2/2010
0.22
0.21
7/7/2010
0.22
7/8/2010
0.18
7/9/2010
0.18
0.2
7/12/2010
0.18
7/13/2010
0.17
7/14/2010
0.16
7/15/2010
0.18
7/16/2010
0.17
0.1
7/20/2010
0.28
7/21/2010
0.24
7/22/2010
0.29
7/23/2010
0.27
0.268
7/26/2010
0.29
7/27/2010
0.26
7/28/2010
0.3
7/29/2010
0.23
7/30/2010
0.28
0.272
8/24/2010
0.18
8/25/2010
0.15
8/26/2010
0.2
8/27/2010
0.14
0.17
8/30/2010
0.17
8/31/2010
0
9/1/2010
0
9/2/2010
0.22
9/3/2010
1 0.2
0.118
9/8/2010
0.24
9/9/2010
0.2
9/10/2010
0.31
0.2425
9/13/2010
0.3
9/14/2010
0.22
9/15/2010
0.23
9/16/2010
0.18
9/17/2010
0.2
0.226
9/21 /2010
0.16
9/22/2010
0.2
9/23/2010
0.14
9/24/2010
0.1
0.152
9/28/2010
0.63
9/29/2010
0.44
9/30/2010
0.19
10/1/2010
0.28
0.41
Shaded = Winter months

Date
NH3N
Weekly Avg.
Date
NH3N
Weekly Avg.
Date
NH3N
Weekly Avg.
Date
NH3N
IWeekly Avg.
10/4/2010
0.3
0.354
12/13/2010
0.44
0.442
0.53
2/21/2011
0.84
0.724
5/2/2011
0.46
1 0.414
10/5/2010
0.47
12/14/2010
0.52
2/22/2011
0.78
5/3/2011
0.42
10/6/2010
0.48
12/15/2010
0.37
2/23/2011
0.71
5/4/2011
0.44
10/7/2010
0.26
12/16/2010
1 0.46
2/24/2011
0.65
5/5/2011
0.37
10/8/2010
0.26
12/17/2010
0.42
2/25/2011
0.64
5/6/2011
0.38
10/11/2010
0.37
12/20/2010
0.49
2/28/2011
1.3
5/9/2011
0.32
10/12/2010
0.34
12/21/2010
0.6
3/1/2011
0
5/10/2011
0.34
10/13/2010
0.34
12/22/2010
0.5
3/2/2011
0.57
5/11/2011
0.33
10/14/2010
0.34
12/27/2010
0.24
3/3/2011
0.4
5/12/2011
0.24
10/15/2010 1 0.22 1 0.322
10/19/2010
0.22
10/20/2010
0.2
10/21 /2010
0.22
10/22/2010
0.26
0.214
10/26/2010
0.29
10/27/2010
0.3
10/28/2010
0.2
10/29/2010
0.31
0.282
11/1/2010
0.4
11 /2/2010
0.46
11 /3/2010
0.41
11 /4/2010
0.48
11 /5/2010
0.54
0.458
11 /9/2010
0.38
11/10/2010
0.34
11/11/2010
0.31
11/12/2010
0.28
0.336
11/15/2010
0.32
11/16/2010
0.31
11/17/2010
0.34
11 /19/2010 1 0.43 1 0.36
11 /23/2010
0.39
11 /24/2010
0.46
0.41
11 /29/2010
0.36
11/30/2010
0.38
12/1/2010
0.4
12/2/2010
0.38
12/3/2010 1
0.36 1
0.376
12/7/2010 0.5
12/8/2010 0.46
12/9/2010 0.38
12/10/2010 0.42 0.448
12/28/2010
0.22
12/29/2010
0.24
12/30/2010
0.22
1 0.23
1 /4/2011
0.26
1 /5/2011
0.26
1 /6/2011
0.28
1 /7/2011
0.28
0.274
1 /11 /2011
0.34
1 /12/2011
0.34
1 /13/2011
0.32
1/14/2011
0.36
0.34
1 /19/2011
0.34
1 /20/2011
0.42
1 /21 /2011
0.51
0.41
1 /25/2011
0.5
1 /26/2011
0.54
1 /27/2011
0.44
1 /28/2011
0.54
0.512
1/31/2011
0.5
2/1/2011
0.51
2/3/2011
0.33
2/4/2011
0.3
0.422
2/7/2011
0.38
2/8/2011
0.52
2/9/2011
0.52
2/10/2011
0.54
2/11/2011
0.5
0.492
2/14/2011
0.62
2/ 15/2011
0.74
2/16/2011
0.69
2/17/2011
0.66
2/18/2011
0.66
0.674
3/4/2011 1 0.77 1 0.608 1 05/13/2011 1 0.28 1 0.302
3/8/2011
0.28
3/9/2011
0.28
3/10/2011
0.31
3/11/2011
0.5
0.39
3/15/2011
0.41
3/16/2011
0.42
3/17/2011
0.45
3/18/2011
0.38
0.388
3/21 /2011
0.36
3/22/2011
0.35
3/23/2011
0.37
3/24/2011
0.32
3/25/2011
1 0.35
3/29/2011
0.48
3/30/2011
0.44
3/31 /2011
0.72
4/1/2011
0.54
0.512
4/4/2011
0.7
4/5/2011
0.52
4/6/2011
0.48
4/8/2011 1 0.47 1 0.522
4/12/2011
0.4
4/13/2011
0.34
4/14/2011
0.3
4/15/2011
0.33
0.354
4/18/2011
0.31
4/19/2011
0.36
4/20/2011
0.34
4/21 /2011
0.34
0.337E
4/25/2011
0.5
4/26/2011
0.42
4/27/2011
0.47
4/28/2011
0.42
4/29/2011 1
0.42 1
0.446
5/17/2011
0.22
5/18/2011
0.22
5/19/2011
0.24
5/20/2011
0.22
0.228
5/24/2011
0.34
5/25/2011
0.27
5/26/2011
0.26
5/27/2011
0.28
0.282
5/31 /2011
0.41
6/1 /2011
0.42
6/2/2011
0.37
6/3/2011
0.46
1 0.415
6/7/2011 0.24
6/8/2011 0.2
6/9/2011 0.22
6/14/2011
0.33
6/15/2011
0.36
6/16/2011
0.39
6/17/2011
0.42
0.35
6/20/2011
0.48
6/21 /2011
0.35
6/22/2011
0.3
6/23/2011
0.2
6/24/2011
0.28
0.322
6/27/2011
0.24
6/28/2011
0.26
6/29/2011
0.44
6/30/2011
0.4
7/1/2011
0.32
0.332
7/5/2011
0.3
7/6/2011
0.29
7/7/2011
0.25
7/8/2011 1
0.24
0.27

Date
NH3N
Weekly Avg.
Date
NH3N
Weekly Avg.
Date
NH3N
Weekly Avg.
Date
NH3N
Weekly Avg.
7/11/2011
0.18
0.282
0.186
9/19/2011
0.21
0.212
0.302
11/28/2011
0.27
0.574
0.206
.21
2/6/2012
0.26
0.268
0.324
0.28
7/12/2011
0.26
9/20/2011
0.17
11/29/2011
0.66
2/7/2012
0.26
7/13/2011
0.28
9/21 /2011
0.2
11 /30/2011
1.2
2/8/2012
0.27
7/14/2011
0.39
9/22/2011
0.24
12/1/2011
0.54
2/9/2012
0.25
7/15/2011
0.3
9/23/2011
0.24
12/2/2011
0.2
2/10/2012
0.3
7/18/2011
0.24
9/26/2011
0.24
12/5/2011
0.2
2/13/2012
0.37
7/19/2011
0.2
9/27/2011
0.26
12/6/2011
0.19
2/14/2012
0.32
7/20/2011
0.16
9/28/2011
0.33
12/7/2011
0.21
2/15/2012
0.29
7/21/2011
0.15
9/29/2011
0.34
12/8/2011
0.24
2/16/2012
0.3
7/22/2011
0.18
9/30/2011
0.34
12/9/2011
0.19
2/17/2012
0.34
7/25/2011
0.14
10/3/2011
0.39
12/12/2011
0.24
2/20/2012
0.28
7/26/2011
0.14
10/4/2011
0.37
12/13/2011
0.22
2/21/2012
0.27
7/27/2011
0.17
10/5/2011
0.29
12/14/2011
0.28
2/22/2012
0.27
7/28/2011
0.18
10/6/2011
0.24
12/15/2011
0.3
2/23/2012
0.28
2
2
2/24/2012
0.3
�� 1 I 1 � • I
1 1
1
1
8/16/2011 0.19
8/17/2011 0.23
8/18/2011 0.23
8/19/2011 0.2 0.202
8/23/2011
0.26
8/24/2011
0.28
8/25/2011
0.34
8/26/2011
0.37
0.302
8/29/2011
0.43
8/30/2011
0.34
8/31 /2011
0.34
9/1 /2011
0.32
9/2/2011
0.3
0.346
9/6/2011
0.3
9/7/2011
0.23
9/8/2011
0.21
9/9/2011
0.26
0.25
9/ 12/2011
0.24
9/13/2011
0.22
9/14/2011
0.27
9/15/2011
0.23
9/16/2011
0.24
0.24
10/11/2011
0.17
10/12/2011
0.14
10/13/2011
0.2
10/14/2011
0.2
0.182
10/17/2011
0.26
10/18/2011
0.22
10/19/2011
0.26
10/20/2011
0.26
10/21 /2011
0.2
0.24
10/24/2011
0.26
10/25/2011
0.2
10/26/2011
0.22
10/27/2011
0.23
10/28/2011
0.19
0.22
10/31/2011
0.18
11/1/2011
0.13
11 /2/2011
0.2
11 /3/2011
0.22
11 /4/2011
0.32
0.21
11/7/2011
0.4
11 /8/2011
0.32
11/9/2011
0.36
11/10/2011
0.48
11/11/2011
0.57
0.426
11/14/2011
0.5
11/15/2011
0.25
11/16/2011
0.26
11/17/2011
0.63
11/18/2011
0.34
0.396
11 /22/2011 1 0.2
11/2�1 0.2 1 0.23
1 11
12/21/2011EO.
12/22/2011
12/23/2011
0.18
0.286
12/28/2011
0.51
12/29/2011
0.18
12/30/2011
0.11
0.2667
1 /3/2012
0.16
1 /4/2012
0.18
1 /5/2012
0.14
1 /6/2012
0.14
0.155
1/10/2012
1 0.22
1/11/2012
0.21
1/12/2012
0.22
1/13/2012
0.26
0.21
1/18/2012
0.18
1/19/2012
0.16
1 /20/2012
0.16
0.17
1 /23/2012
0.22
1 /24/2012
0.22
1 /25/2012
0.36
1 /26/2012
0.24
1 /27/2012
0.3
0.268
1 /30/2012
0.27
1/31/2012
0.28
2/1/2012
0.28
2/2/2012
j 0.32
2/3/2012
1 0.32
0.294
2/28/2012
0.33
2/29/2012
0.22
3/1/2012
0.26
3/2/2012
0.24
0.272
3/6/2012
0.33
3/7/2012
0.44
3/8/2012
0.23
3/9/2012
0.24
0.296
3/12/2012
0.3
3/13/2012
0.27
3/14/2012
0.25
3/15/2012
0.31
3/16/2012
0.32
0.29
3/19/2012
0.24
3/20/2012
0.26
3/21 /2012
0.24
3/22/2012
0.22
3/23/2012
0.16
1 0.224
3/27/2012
0.26
3/28/2012
0.28
3/29/2012
0.3
3/30/2012
0.34
0.284
4/3/2012
0.27
4/4/2012
0.27
4/5/2012
0.25
0.2725
4/10/2012
0.2
4/11 /2012
0.18
4/12/2012
0.18
4/13/2012
.17
0.171
0.194

Weekly Avg.
Weekly Avg.
Weekly Avg.
Date
NH3N
Date
NH3N
Date
NH3N
•4/16/2012
0.19
0.212
6/25/2012
0.15
0.19
9/4/2012
0.22
0.2275
4/17/2012
0.2
6/26/2012
0.16
9/5/2012
0.26
4/18/2012
0.25
6/27/2012
0.24
9/6/2012
0.19
4/19/2012
0.2
6/28/2012
0.2
9/7/2012
0.24
4/20/2012
0.22
6/29/2012
0.2
9/10/2012
0.27
4/23/2012
0.25
j
0.25
0.246
7/2/2012
0.19
0.1575
0
4/24/2012
0.23
7/3/2012
0.18
4/25/2012
0.24
7/5/2012
0.14
4/26/2012
0.27
7/6/2012
0.12
4/27/2012
0.26
7/9/2012
0
4/30/2012
0.24
7/10/2012
0
5/1/2012
0.26
7/11/2012
0
5/2/2012
0.26
7/12/2012
0
5/3/2012
0.26
7/13/2012
0
5/4/2012
0.21
7/16/2012
0.16
5/7/2012
0.26
0.214
1.178
5/8/2012
0.27
5/9/2012
0.26
5/10/2012
0.28
5/11/2012
0
5/14/2012
0.26
5/15/2012
0.99
5/16/2012
2.4
5/17/2012
1.4
5/18/2012
0.84
5/22/2012
0.38
5/23/2012
0.4
5/24/2012
0.32
5/25/2012
0.32
0.38
5/29/2012
0.46
5/30/2012
0.2
5/31 /2012
0.22
6/1/2012
0.22
0.275
6/4/2012
0.17
6/5/2012
0.17
6/6/2012 0.17
6/7/2012 0.22
6/8/2012 1 0.12 1 0.17
6/11/2012
0.32
6/12/2012
0.69
6/13/2012
0.56
6/14/2012
0.52
6/15/2012
0.21
0.46
6/19/2012
0.28
6/20/2012
0.42
6/21 /2012
0.22
6/22/2012
0.14
0.3
7/17/2012
0.18
7/18/2012
0.18
7/19/2012
0.23
7/20/2012
0.31
0.212
7/23/2012
0.13
7/24/2012
0.22
7/25/2012
0.2
7/26/2012
0.22
7/27/2012
0.13
0.18
7/30/2012
0.12
7/31/2012
0.11
8/1/2012
0
8/2/2012
0.11
8/3/2012
0
0.068
8/6/2012
0
8/7/2012
0
8/8/2012
0.14
8/9/2012
0.11
8/10/2012
0.11
0.072
8/13/2012
0.12
8/14/2012
0.14
8/15/2012
0.16
8/16/2012
0.16
8/17/2012
0.14
0.144
8/20/2012
0.13
8/21 /2012
0.18
8/22/2012
0.15
8/23/2012
0.14
8/24/2012
0.13
0.146
8/27/2012
0.18
8/28/2012
0.16
8/29/2012
0.2
8/30/2012
0.18
8/31/2012
0.21
0.186
9/11/2012
0.26
9/12/2012
0.26
9/13/2012
0.24
9/14/2012
0.2
0.246
9/17/2012
0.24
9/18/2012
0.12
9/19/2012
0.12
9/20/2012
0.18
9/21 /2012
0.21
0.174
9/24/2012
0.2
9/25/2012
0.18
9/26/2012
0.18
9/27/2012
0.2
9/28/2012
0.2
0.192
10/1/2012
0.22
10/2/2012
0.17
10/3/2012
0.15
10/4/2012
0.18
10/5/2012
1 0.2
0.184
10/9/2012
0.3
10/10/2012
0.29
10/11/2012
0.24
10/12/2012
0.24
0.268
10/16/2012
0.23
10/17/2012
0.22
10/18/2012
0.22
10/19/2012
0.24
0.226
10/22/2012
0.26
10/23/2012
0.28
10/24/2012
0.3
10/25/2012
0.26
10/26/2012
0.29
0.278
10/30/2012
0.32
10/31 /2012
0.34
11/1/2012
0.3
11/2/2012
0.28
0.316
11/5/2012
0.3
11/6/2012
0.36
11 /7/2012
0.36
11 /8/2012
0.3
11 /9/2012
0.28
0.32
Date
NH3N
11/12/2012
0.32
11/13/2012
0.27
11/14/2012
0.25
11/15/2012
0.29
11/16/2012
0.21
11/19/2012
0.31
11 /20/2012
0.34
11/21/2012
0.34
11 /26/2012
0.39
11/27/2012
0.18
11 /28/2012
0.24
11 /29/2012
0.18
11/30/2012
0.24
12/3/2012
0.3
12/4/2012
0.28
12/5/2012
0.31
12/6/2012
j 0.34
12/7/2012
0.21
12/10/2012
0.19
12/11/2012
0.22
12/12/2012
0.32
12/13/2012
0.3
12/14/2012
0.3
12/17/2012
0.2
12/18/2012
0.26
12/19/2012
0.32
12/20/2012
0.24
12/21 /2012
0.3
12/26/2012
0.18
12/27/2012
0.7
12/28/2012
0.23
12/31 /2012
0.2
Weekly Avg.
0.268
0.246
0.288
0.266
0.264

Salisbury -Rowan WWTP NCO023884
3-Year Yadkin Effluent Fecal Summary 2010-2012 Calendar Year
Colonies/.
Monthly.Avg. Permit Limit
200
100 ml
50 % of Monthly Avg. Permit
Colonies/
Limit
100
100 ml
Colonies/
3-Yr. Avg. of Monthly Geo.
7.025
100 ml
Mean
200% of 400 col./100 ml =
# of Daily results
1200 col./100ml
> 200%
7
Coloolonies/100
Weekly Avg. Permit Limit
400
.
ml
*Max weekly average
135
*No more than two non -monthly average limit violations occurred during the 3 year period.
3 - Yr. Average of monthly geometric mean (colonies/100m1)
2010
Jan.
3.4
2011
Jan
2.1
2012
Jan
4
Feb.
3
Feb
1.8
Feb.
3
Mar.
1.8
Mar
1
Mar
2
Apr
2.6
Apr
1
Apr
3
May
3.8
May
44
May
3
Jun
5.8
Jun
23
Jun
8
Jul
5.7
Jul
12
Jul
5
Aug
7.4
Aug
5
Aug
5
Sep
6.5.
Sep
3
Sep
5
Oct
3.8
Oct
4.
Oct
6
Nov
3.7
Nov
10
Nov
25
Dec
2.5
Dec
13
Dec
14
Average
7.025

Salisburv-Rowan WWTP N00023884 3-Year Yadkin Effluent Fecal 2010-2012 (colonies/100 ml)
Date
fecal
Weekly geo-
mean
Date
fecal
weekly geo-
mean
Date
fecal
Weekly geo-
mean
Date
fecal
Weekly
mea
1/4/2010
1
1.25
1.43
2.21
32
12,9
2.09
1.32
2,17
2.17
1.15
3/15/2010
1
1
2.89
3_25
2.69
5.26
2.55
1.32
1.89
2.61
16.4
5/24/2010
1
2.53
11.7
7.87
3.78
4.1
5.26
3.31
1.64
16
10.7
8/2/2010
2
1/5/2010
3
3/16/2010
1
5/25/2010
1
8/3/2010
6
1/6/2010
1
3/17/2010
1
5/26/2010
1
8/4/2010
2
1/7/2010
1
3/18/2010
1
5/27/2010
2
8/5/2010
4
1/8/2010
1
3/19/2010
1
5/28/2010
52
8/6/2010
6
3.57
1 /11 /2010
1
3/22/2010
100
6/1 /2010
22
8/9/2010
2
1/12/2010
2
3/23/2010
1
6/2/2010
14
8/10/2010
2
1/13/2010
3
3/24/2010
1
6/3/2010
12
8/11/2010
12
1/14/2010
1
3/25/2010
2
6/4/2010
5
8/12/2010
5
1/15/2010
1
3/26/2010
1
6/7/2010
8
8/13/2010
1
2.99
1/19/2010
2
3/29/2010
7
6/8/2010
9
8/16/2010
4
1/20/2010
2
3/30/2010
8
6/9/2010
10
8/17/2010
136
1/21/2010
3
3/31/2010
1
6/10/2010
6
8/18/2010
1
1/22/2010
2
4/1/2010
2
6/11/2010
7
8/19/2010
12
1/25/2010
109
4/5/2010
2
6/14/2010
2
8/20/2010
2500
27.7
1/26/2010
590
4/6/2010
1
6/15/2010
16
8/23/2010
1
1/27/2010
260
4/7/2010
2
6/16/2010
3
8/24/2010
8
1/28/2010
1
4/8/2010
7
6/17/2010
2
8/25/2010
220
1/29/2010
2
4/9/2010
5
6/18/2010
4
8/26/2010
22
2/1/2010
1
4/12/2010
1
6/21/2010
4
8/27/2010
2
9_5
2/2/2010
5
4/13/2010
4
6/22/2010
9
8/30/2010
15
2/3/2010
6
4/14/2010
18
6/23/2010
4
8/31/2010
5
2/4/2010
4/15/2010
7
6/24/2010
4
9/1/2010
9
2/5/2010
6
4/16/2010
8
6/25/2010
2
9/2/2010
3
2/8/2010
2
4/19/2010
1
6/28/2010
4
9/3/2010
1
4.58
2/9/2010
2
4/20/2010
3
6/29/2010
7
9/7/2010
15
2/10/2010
1
4/21/2010
3
6/30/2010
4
9/8/2010
19
2/11/2010
10
4/22/2010
4
7/1/2010
3
9/9/2010
21
2/12/2010
1
4/23/2010
3
7/2/2010
12
9/10/2010
10
15.6
2/15/2010
2
4/26/2010
1
7/6/2010
5
9/13/2010
11
2/16/2010
2
4/27/2010
2
7/7/2010
2
9/14/2010
16
2/17/2010
1
4/28/2010
1
7/8/2010
3
9/15/2010
4
2/18/2010
1
4/29/2010
1
7/9/2010
4
9/16/2010
2
2/19/2010
1
4/30/2010
2
7/12/2010
3
9/17/2010
4
5.63
2/22/2010
2
5/3/2010
1
7/13/2010
2
9/20/2010
6
2/23/2010
2
5/4/2010
2
7/14/2010
1
9/21/2010
26
2/24/2010
1
5/5/2010
1
7/15/2010
1
9/22/2010
11
2/25/2010
2
5/6/2010
12
7/16/2010
2
9/23/2010
2
2/26/2010
6
5/7/2010
1
7/19/2010
2
9/24/2010
1
5.09
3/1/2010
1
5/10/2010
6
7/20/2010
9
9/27/2010
9
3/2/2010
1
5/11/2010
5
7/21/2010
22
9/28/2010
6
3/3/2010
2
5/12/2010
2
7/22/2010
38
9/29/2010
4
3/4/2010
4
5/13/2010
1
7/23/2010
70
9/30/2010
20
3/5/2010
6
5/14/2010
2
7/26/2010
81
10/1/2010
13
8.91
3/8/2010
1
5/17/2010
6
7/27/2010
6
10/4/2010
10
3/9/2010
2
5/18/2010
209
7/28/2010
18
10/5/2010
10
3/10/2010
1
5/19/2010
20
7/29/2010
4
10/6/2010
10
3/11/2010
1
5/20/2010
12
7/30/2010
4
10/7/2010
36
3/12/2010
1
5/21/2010
4
10/8/2010
25
1 15.5
geo-
I

`
Weekly geo-
mean
Date
fecal
Date_
'10/1-1 /2010
4
2.49
1.89
2.85
12/20/2C
10/12/2010
2
12/21/2C
10/13/2010 .
4
12/22/2C
10/14/2010
1 .
12/27/2C
10/15/2010
3
12/28/2C
10/18/2010
3
12/29/2C
10/19/2010
1
12/30/2C
10/20/2010
2
1 /3/201
10/21 /2010
2
1 /4/201
10/22/2010
2 -
1/5/201
10/25/2010
2"
1/6/201
10/26/2010
3
1 /7/201
10/27/2010
1
1 /10/20
10/28/2010
6
1/11/20
10/29/2010' 1
2 1
1/12/20
al Weekly geo- Date fecal Weekly geo- Date fecal Weekly geo-
mean mean mean
2.29
2.11
1.32
2/28/2011
1
1.15
1.15
1
5/9/2011
12
6.49
19.5
5.19
3/1/2011
2
5/10/2011
6
3/2/2011
1
5/11/2011
8
3/3/2011
1
5/12/2011 ,
10
3/4/2011
1
5/13/2011
2
3/7/2011
2
5/16/2011
20
3/8/2011
1
5/17/2011
22
3/9/2011
1
5/18/2011
23
3/10/2011
1
5/19/2011
6
3/11/2011
1
5/20/2011
46
3/14/2011
1
5l23/2011
94
3/15/2011
1
5/24/2011
10
3/16/2011
1
5/25/2011
1
3/17/2011
1
5/26/2011
4
3/18/2011
1
5/27/2011
1
'11/3/Yu'lu
4u
I/l8/Gu I l a
1/19/2011 2
10.1. 1 /20/2011 8.
1/21/2011. 1 3.36
1 /24/2011 4
1/25/2011 2
1/26/2011 1
4.36 1/27/2011 10
1/28/2011 1 2.4
1 /31 /2011 2
2/1/2011 1
2/2/2011 2
2.17 2/3/2011 -2
2/4/2011 1 1,52
2/7/2011 4
1.26 2/8/2011 1
2/9/2011 2 .
2/10/2011 1 -
.2/11/2011 1 1.52
2/14/2011 4
2.43 2/15/2011 39
2/16/2011 15
-2/17/2011 1
2118/2011. 1 4.72
2/21 /2011 1
3.46 2/22/2011 1
2/23/2011 1
2/24/2011 2
2/25/2011 1 1.15
3.17
oicoicu I I
1
1
1.15
1.15
1.19
-
1.7
8.17
I I
-
67
8.49
52.6
19,8
14.8
22
58.5
11/4/2010
26
3/24/2011
1.
6/3/2011
560
11 /5/201.0
1.
3/25/2011
1
6/6/2011 .
6
11/8/2010
9
3/28/2011
1
6/7/2011
3
11 /9/2010
22
3/29/2011
1
6/8/2011
18
11/10/2010
4
3/30/2011
1
6/9/2011
17
11/11/2010
2
3/31/2011
1
6/10/2011
8
11/12/2010
1
4/1/2011
1
6/13/2011
181.
11/15/2010
8
4/4/2011
1
6/14/2011
39
.11 /16/2010
3
4/5/2011
1
6/15/2011
40
11/17/2010
2
4/6/2011
1
6/16/2011
55
11/18/2010
1
4/7/2011
2
6/17/2011
260
11/19/2010
1
4/8/2011
1
6/20/2011
20
11/22/20.10
1.
4/11/2011
1
6/21/2011
52
11/23/2010
2
4/12/2011
A
6/22/2011
21
11/24/2010
1
4/13/2011
2
6/23/2011
14
11/29/2010
1
4/14/2011
1
6/24/2011
10
11/30/2010
14
4/15/2011
1
6/27/2011
12
12/1/2010
3 ;
4/18/2011
1
6/28/2011
29
12/2/2010
1
4/19/2011
2
6/29/2011
4
12/3/2010
2
4/20/2011
.1
6/30/2011
21
12/6/2010
1
4/21/2011
1
7/1/2011
24
12/7/2010
4
4/25/2011
1
7/5/2011
220
12/8/2010
6
4/26/2011
1
7/6/2011
22
12/9/2010 .
2'
4/27/2011
11
7/7/2011
6
12/10/2010
3
4/28/2011
1
7/8/2011
8
12/13/2010
10
4/29/2011
14
7/11/2011
173
12/14/2010
8
5/2/2011
5
7/12/2011
25
12/15/2010
1
5/3/2011
38
7/13/2011
16
12/16/2010
1
5/4/2011
8
7/14/2011
136
12/17/2010
4
5/5/2011
2
7/15/2011
73
5/6/2011
12

Date
fecal
Weekly geo-
mean
Date
fecal
Weekly geo-
mean
Date
fecal
Weekly geo-
mean
Date
fecal
Weekly
mear
7/18/2011
6
3.44
4.3
5.1
2
8
4.58
5.91
6.15
1.74
1.32
9/26/2011
17
4.05
5.15
2
3.05
6.36
6.41
1 17.7
14
11
7.31
12/5/2011
8
12.6
10.8
14.2
13.2
1.41
1.43
7.07
16
2.87
H2.62
2/13/2012
1
7/19/2011
2
9/27/2011
2
12/6/2011
7
2/14/2012
1
7/20/2011
2
9/28/2011
2
12/7/2011
8
2/15/2012
2
7/21/2011
5
9/29/2011
1
12/8/2011
35
2/16/2012
146
7/22/2011
4
9/30/2011
16
12/9/2011
20
2/17/2012
4
4.11
7/25/2011
1473
10/3/2011
41
12/12/2011
4
2/20/2012
22
7/26/2011
1
10/4/2011
22
12/13/2011
9
2/21/2012
2
7/27/2011
1
10/5/2011
4
12/14/2011
230
2/22/2012
1
7/28/2011
1
10/6/2011
1
12/15/2011
3
2/23/2012
2
7/29/2011
1
10/7/2011
1
12/16/2011
6
2/24/2012
2
2.81
8/1/2011
2
10/10/2011
2
12/19/2011
4
2/27/2012
2
8/2/2011
1
10/11/2011
2
12/20/2011
3
2/28/2012
2
8/3/2011
3
10/12/2011
2
12/21/2011
8
2/29/2012
2
8/4/2011
18
10/13/2011
1
12/22/2011
6000
3/1 /2012
1
8/5/2011
32
10/14/2011
4
12/23/2011
1
3/2/2012
1
1.52
8/8/2011
1
10/17/2011
2
12/28/2011
1
3/5/2012
1
8/9/2011
2
10/18/2011
4
12/29/2011
2300
3/6/2012
5
8/10/2011
2
10/19/2011
11
12/30/2011
1
3/7/2012
1
8/11/2011
2
10/20/2011
1
1/3/2012
4
3/8/2012
1
8/12/2011
4
10/21/2011
3
1/4/2012
1
3/9/2012
1
1.38
8/15/2011
3
10/24/2011
12
1/5/2012
1
3/12/2012
39
8/ 16/2011
6
10/25/2011
6
1 /6/2012
1
3/ 13/2012
1
8/17/2011
10
10/26/2011
9
1/9/2012
3
3/14/2012
1
8/18/2011
13
10/27/2011
4
1 /10/2012
1
3/15/2012
10
8/19/2011
14
10/28/2011
4
1/11/2012
1
3/16/2012
2
3.79
8/22/2011
12
10/31/2011
6
1/12/2012
2
3/19/2012
1
8/23/2011
21
11 /1 /2011
4
1 /13/2012
1
3/20/2012
1
8/24/2011
1
11/2/2011
5
1/17/2012
250
3/21/2012
1
8/25/2011
2
11 /3/2011
5
1 /18/2012
1
3/22/2012
1
8/26/2011
4
11 /4/2011
18
1 /19/2012
5
3/23/2012
6
1.43
8/29/2011
15
11/7/2011
8
1/20/2012
2
3/26/2012
2
8/30/2011
12
11 /8/2011
9
1 /23/2012
1
3/27/2012
4
8/31/2011
10
11/9/2011
84
1/24/2012
1
3/28/2012
1
9/1/2011
2
11/10/2011
15
1/25/2012
2100
3/29/2012
4
9/2/2011
2
11/11/2011
19
1/26/2012
12
3/30/2012
3
2.49
9/6/2011
2
11 /14/2011
14
1 /27/2012
42
4/2/2012
9
9/7/2011
1
11 /15/2011
30
1 /30/2012
7
4/3/2012
28
9/8/2011
31
11/16/2011
8
1/31/2012
7
4/4/2012
1
9/9/2011
23
11/17/2011
10
2/1/2012
2
4/5/2012
1
3.98
9/12/2011
4
11/18/2011
16
2/2/2012
2
4/9/2012
64
9/13/2011
2
11/21/2011
12
2/3/2012
1
4/10/2012
4
9/14/2011
1
11/22/2011
8
2/6/2012
1
4/11/2012
38
9/15/2011
1
11/23/2011
14
2/7/2012
31
4/12/2012
4
9/16/2011
2
11/28/2011
3
2/8/2012
2
4/13/2012
3
10.3
9/19/2011
1
11 /29/2011
8
2/9/2012
1
4/16/2012
1
9/20/2011
2
11/30/2011
2
2/10/2012
2
4/17/2012
1
9/21 /2011
1
12/1 /2011
31
4/ 18/2012
1
9/22/2011
2
12/2/2011
14
4/19/2012
2
9/23/2011
1
4/20/2012
1
1.15
1eo-

Date fecal Weekly geo- Date fecal Weekly geo- Date fecal Weekly geo-
. mean mean mean
. 4/23/2012
1
1.52
10.8
1.32
2.35
5.87
3.95
26.5
10.3
2.49
7.13
7/2/2012
1
2.63
1.64
20
6.01
2.95
4.55
2.86
4.64
16.3
11.6
9/10/2012
11
2.66
7.69
4.28
3.78
7.17
4.22
5.52
68.1
j 11.4
4/24/2012
1
7/3/2012
6
9/11/2012
6
4/25/2012
2
7/5/2012
4
9/12/2012
2
4/26/2012
2
7/6/2012
2
9/13/2012
1
4/27/2012
2
7/9/2012
1
9/14/2012
1
4/30/2012
38
7/10/2012
1
9/17/2012
1
5/1/2012
64
7/11/2012
6
9/18/2012
9
5/2/2012
6
7/12/2012
1
9/19/2012
16
5/3/2012
5
7/13/2012
2
9/20/2012
11
5/4/2012
2
7/16/2012
10
9/21/2012
17
5/7/2012
1
7/17/2012
11
9/24/2012
6
5/8/2012
2
7/18/2012
11
9/25/2012
5
5/9/2012
1
7/19/2012
8
9/26/2012
4
5/10/2012
1
7/20/2012
330
9/27/2012
4
5/11/2012
2
7/23/2012
6
9/28/2012
3
5/14/2012
36
7/24/2012
41
10/1/2012
2
5/15/2012
1
7/25/2012
2
10/2/2012
4
5/16/2012
1
7/26/2012
8
10/3/2012
2
5/17/2012
1
7/27/2012
2
10/4/2012
6
5/18/2012
2
7/30/2012
2
10/5/2012
8
5/21 /2012
2
7/31 /2012
7
10/8/2012
2
5/22/2012
290
8/1/2012
2
10/9/2012
14
5/23/2012
6
8/2/2012
4
10/10/2012
4
5/24/2012
1
8/3/2012
2
10/11/2012
13
5/25/2012
2
8/6/2012
2
10/12/2012
13
5/29/2012
4
8/7/2012
7
10/15/2012
8
5/30/2012
6
8/8/2012
1
10/16/2012
7
5/31/2012
5
8/9/2012
2
10/17/2012
1
6/1/2012
4
8/10/2012
70
10/18/2012
4
6/4/2012
410
8/13/2012
1
10/19/2012
6
6/5/2012
4
8/14/2012
4
10/22/2012
2
6/6/2012
24
8/15/2012
3
10/23/2012
8
6/7/2012
11
8/16/2012
2
10/24/2012
4
6/8/2012
30
8/17/2012
8
10/25/2012
10
6/11/2012
34
8/20/2012
6
10/26/2012
8
6/12/2012
12
8/21/2012
6
10/29/2012
6
6/13/2012
2
8/22/2012
5
10/30/2012
17
6/14/2012
14
8/23/2012
4
10/31/2012
480
6/15/2012
10
8/24/2012
3
11/1/2012
6/18/2012
2
8/27/2012
19
11/2/2012
10
6/19/2012
8
8/28/2012
29
11/5/2012
7
6/20/2012
1
8/29/2012
8
11 /6/2012
9
6/21/2012
2
8/30/2012
12
11/7/2012
10
6/22/2012
3
8/31 /2012
22
11 /8/2012
16
6/25/2012
2
9/4/2012
10
11 /9/2012
19
6/26/2012
14
9/5/2012
6
6/27/2012
22
9/6/2012
16
6/28/2012
5
9/7/2012
10
6/29/2012
6
Date
fecal
11/12/2012
210
11/13/2012
310
11/14/2012
54
11/15/2012
54
11/16/2012
44
11/19/2012
21
11 /20/2012
32
11/21/2012
1
11/26/2012
6
11/27/2012
3
11 /28/2012
8
11 /29/2012
210
11 /30/2012
7
12/3/2012
1
12/4/2012
8
12/5/2012
6
12/6/2012
1
12/7/2012
1
12/10/2012
260
12/11/2012
127
12/12/2012
53
12/13/2012
127
12/14/2012
200
12/17/2012
48
12/18/2012
26
12/19/2012
14
12/20/2012
2
12/21 /2012
42
12/26/2012
1000
12/27/2012
1
12/28/2012
1
12/31/2012
2
Weekly geo-
mean
17.4
135