NC0086762_Permit (Issuance)_20090226

NPDES DOCUHENT SCANNING COVER SHEET
NPDES Permit:
NC0086762
P. W. Swann WTP
Document Type: C
Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Staff Report
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Permit
History
Document Date:
February 26, 2009
This document is priated on reuse paper -ignore any
coateat oa the reYerse side

ATA
NCDENR
North Carolina Department of Environment and Natural Resources
• Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary
David K. Saunders
City of Winston-Salem / Forsyth County Utilities
P. O. Box 2511
Winston-Salem, North Carolina 25111
February 26, 2009
Subject: Issuance of NPDES
Permit NC0086762
Northwest WTP
Forsyth County
Dear Mr. Saunders:
Division personnel have reviewed and approved your application for renewal of the subject permit. Accordingly, we are
forwarding the attached NPDES discharge permit. This permit 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).
Division of Water Quality response to Jan 9, 2009 comments to draft permit;
1. Your request to change the Monthly Average Flow to 35.0 MGD has been approved.
2. Attached to your draft permit was the "NPDES permitting strategies for potable water treatment plants
methodology with a detailed explanation of the reasoning for the additional sampling requirements which were
implemented during this permit renewal cycle. For further clarification please contact me at 919-807-6387.
3. Sampling data provided by you was for finished water and not Effluent Discharge. Your request to change the
Fluoride sampling to Quarterly is denied. (see # 9)
4. Your request to change the monitoring frequency for Iron to Quarterly has been approved.
5. Footnote #4 has been added which requires quarterly monitoring for ammonia nitrogen ONLY if your facility uses
chloramination.
6. Sampling data provided by you was for raw water and not Effluent Discharge. Your request to delete the total
nitrogen sampling is denied. (see # 9)
7. Sampling data provided by you was for raw water and not Effluent Discharge. Your request to reduce the copper
sampling is denied. (see # 9)
8. Sampling data provided by you was for finished water and not Effluent Discharge. Your request to reduce the total
phosphorus sampling is denied. (see # 9)
9. Any facility can request that the Division reduce or eliminate monitoring requirements contained in NPDES permit.
Facilities must submit at least 12 or more sampling results for effluent parameters to be considered for reduction
or elimination. The Division will review these sampling results and make a determination concurrent with the
request.
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone] \ Customer Service: 1-877-623-6748
Internet: www.ncwaterquality.org
An Equal Opportunity\ Affirmative Action Employer
Nose Carolina
�tura!!t�

If any parts, measurement frequencies or sampling requirements contained in this permit are unacceptable to you, you
have the right to an adjudicatory hearing upon written request within thirty (30) days following receipt of this letter. This
request must be in the form of a written petition, conforming to Chapter 150E of the North Carolina General Statutes, and
filed with the Office of Administrative Hearings (6714 Mail Service Center, Raleigh, North Carolina 27699-6714). Unless
such demand is made, this decision shall be final and binding.
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 Guerra at telephone number [phone].
Sincerely,
L7)
oleen H. Sullins
Enclosure: NPDES Permit NC0086762
cc: Mooresville Regional Office / Surface Water Protection
NPDES Unit
Central Files
Aquatic Toxicology Section
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] \ FAX: [phone] \ Customer Service: 1-877-623-6748
Internet: www.ncwaterquality.org
An Equal Opportunity 1 Affirmative Action Employer
Nne
orthCarolina
Naturally

Permit NC0086762
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision of North Carolina General Statute 143-215.1, other
lawful standards and regulations promulgated and adopted by the North Carolina
Environmental Management Commission, and the Federal Water Pollution Control
Act, as amended, the
Winston-Salem Forsyth Utilities
is hereby authorized to discharge wastewater from a facility located at the
Northwest Water Treatment Plant (WTP)
2800 River Ridge Road
Pfafftown
Forsyth County
to receiving waters designated as an unnamed tributary to Bashavia Creek in the
Yadkin -Pee Dee River Basin in accordance with effluent limitations, monitoring
requirements, and other conditions set forth in Parts I, II, III and IV hereof.
This permit shall become effective April 1, 2009.
This permit and authorization to discharge shall expire at midnight on January 31,
2014.
Signed this day February 26, 2009.
oleen H. Sullins, Director
Division of Water Quality
By Authority of the Environmental Management Commission

Permit NC0086762
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility, whether for operation or discharge
are hereby revoked. As of this permit issuance, any previously issued permit bearing
this number is no longer effective. Therefore, the exclusive authority to operate and
discharge from this facility arises under the permit conditions, requirements, terms,
and provisions included herein.
Winston-Salem / Forsyth Utilities is hereby authorized to:
1. Continue to operate an existing Conventional water treatment system with a
discharge of filter backwash at 35.0 MGD utilizing the following
components/processes:
o One (1) 50 MG Raw water basin #1
o One 100 MG Raw water basin #2
o Two treatment trains with capacities of 12.5 MG each
o Flash Mix
o Flocculation
o Sedimentation basins
o Disinfection
o Six (6) Filters
o Disinfection
o One (1) 0.489 MG Equalization basin
o Two (2) 5.0 MG Clearwells
o Chemical usage consists of
o Potassium Permanganate
o Aluminum Sulfate
o Sodium Bisulfite
o Flourosilicic Acid
o Sodium Hypochlorite
o Zinc Orthophosphate and
o Sodium Hydroxide
2. This facility is located at the Northwest WTP at 2800 River Ridge Road,
Pfafftown in Forsyth County.
3. Discharge of filter backwash from said treatment works at the location
specified on the attached map into an unnamed tributary to Bashavia Creek,
classified C waters in the Yadkin -Pee Dee River Basin.

City of Winston-Salem
Northwest WTP
Latitude: 36° 08' 45" N State Grid: Vienna
Longitude: 80° 25' 10" W Permitted Flow: 25.0 MGD
Receiving Stream: UT to Bashavia Creek Stream Class: C
Drainage Basin: Yadkin -Pee Dee River Basin Sub -Basin: 03-07-02
North
NPDES Permit No. NC0086762
Forsyth County

Permit NC0086762
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of this permit and lasting until expiration, the
Permittee is authorized to discharge filter backwash from outfall 001. Such discharges shall be limited
and monitored by the Permittee as specified below:
LIMITS
MONITORING REQUIREMENTS
EFFLUENT
CHARACTERISTICS
Monthly
Average
Weekly
Average
Daily
Maximum
Measurement
Frequency
Sample
Sample
Location
Type
Flow
35.0 MGD
Continuous
Recording
Effluent
TSS
30 mg/L
-
45 mg/L
Weekly
Grab
Effluent
pH
6.0 - 9.0 s.u.
Weekly
Grab
Effluent ,
Total Residual
Chlorine1.2
17 Ag/L
Weekly
Grab
Effluent
Aluminum3
Quarterly
Grab
Effluent
Calcium3
Quarterly
Grab
Effluent
Magnesium3
Quarterly
Grab
Effluent
Manganese3
Quarterly
Grab
Effluent
Fluoride
2/Month
Grab
Effluent
Total Zinc
2/Month
Grab
Effluent
Ammonia Nitrogen4
2/Month
Grab
Effluent
Total Copper
2/Month
Grab
Effluent
Total Iron
Quarterly
Grab
Effluent
Total Phosphorus
(TP)
Monthly
Grab
Effluent
Total Nitrogen (TN)
Monthly
Grab
Effluent
Whole Effluent
Toxicity Monitoring5
Quarterly
Grab
Effluent
Notes:
1. Limit and monitor only if the facility adds chlorine to water that is eventually discharged.
2. The Division shall consider all effluent TRC values reported below 50 ug/I to be in compliance with the
permit. However, the Permittee shall continue to record and submit all values reported by a North Carolina
certified laboratory (including field certified), even if these values fall below 50 ug/I.
3. Parameters should be monitored in conjunction with toxicity test.
4. Facilities using Chloramination are required to monitor ammonia nitrogen on a quarterly basis.
5. See Attachment A (3.).
All samples collected should be from a representative discharge event.
There shall be no discharge of floating solids or visible foam in other than trace
amounts.

Permit NC0086762
A. (2.) TOTAL RESIDUAL CHLORINE (TRC) REOPENER
This permit may be reopened for revision of the TRC limit if the Permittee completes
one of the following actions.
a) This permit may be reopened if the existing dry ditch between the outfall
and Bashavia Creek is designated as an effluent channel (per 15A NCAC
02B.0228). To receive this designation, the Permittee must submit
documentation to the Division that shows the dry ditch:
> Is contained entirely on property owned (or otherwise controlled) by
the Permittee.
> Does not -contain natural waters except when such waters occur in
direct response to rainfall events by overland runoff.
> Is constructed or modified as to minimize the migration of fish into
said channel.
b) This permit may be reopened if the Permittee constructs an effluent pipe
from the existing outfall to Bashavia Creek. This action would require an
Authorization to Construct permit from the Division.
Any request to modify the permit must include complete documentation of the
actions listed in either a. or b. including a revised topographic map

Permit NC0086762
A. (3.) CHRONIC TOXICITY MONITORING (QRTRLY)
The permittee shall conduct quarterly chronic toxicity tests using test procedures outlined in the "North
Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised February 1998, or subsequent
versions.
The effluent concentration defined as treatment two in the procedure document is 90%. The testing shall be
performed as a Ceriodaphnia dubia 7day pass/fail test. The tests will be performed during the months of
January, April, July and October. Effluent sampling for this testing shall be performed at the NPDES
permitted final effluent discharge below all treatment processes.
All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge
Monitoring Form (MR-1) for the month in which it was performed, using the parameter code TGP3B.
Additionally, DWQ Form AT-1 (original) is to be sent to the following address:
Attention: North Carolina Division of Water Quality
Environmental Sciences Section
1621 Mail Service Center
Raleigh, N.C. 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Section no later than
30 days after the end of the reporting period for which the report is made.
Test data shall be complete and accurate and include all supporting chemical/physical measurements
performed in association with the toxicity tests, as well as all dose/response data. Total residual chlorine of
the effluent toxicity sample must be measured and reported if chlorine is employed for disinfection of the
waste stream.
Should there be no discharge of flow from the facility during a month in which toxicity monitoring is required,
the permittee will complete the information located at the top of the aquatic toxicity (AT) test form indicating
the facility name, permit number, pipe number, county, and the month/year of the report with the notation of
"No Flow" in the comment area of the form. The report shall be submitted to the Environmental Sciences
Section at the address cited above.
Should the permittee fail to monitor during a month in which toxicity monitoring is required, then monthly
monitoring will begin immediately. Upon submission of a valid test, this monthly test requirement will revert
to quarterly in the months specified above.
Should any test data from this monitoring requirement or tests performed by the North Carolina Division of
Water Quality indicate potential impacts to the receiving stream, this permit may be re -opened and modified
to include alternate monitoring requirements or limits.
If the Permittee monitors any pollutant more frequently then required by this permit, the results of such
monitoring shall be included in the calculation & reporting of the data submitted on the DMR & all AT Forms
submitted.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control
organism survival, minimum control organism reproduction, and appropriate environmental controls, shall
constitute an invalid test and will require immediate follow-up testing to be completed no later than the last
day of the month following themonth of the initial monitoring.

NC0086762 Permit Modification Request
Subject: NC0086762 Permit Modification Request
From: "William Brewer" <[e-mail]>
Date: Wed, 21 Jan 2009 09:52:48 -0500
To: "Bob Guerra" <[e-mail]>
CC: "David Saunders" <[e-mail]>, "Ron Hargrove" <[e-mail]>, "Sam
Tuttle" <[e-mail]>, "Rose Pruitt" <[e-mail]>
Bob,
As a follow-up to our phone conversation a couple of weeks ago I have attached a copy of our request to modify
the draft permit for the Northwest WTP NPDES Permit#NC0086762. This letter contains the data and our
justification for the request.
A hard copy has been mailed. Please acknowledge receipt of this e-mail when convenient.
Please feel free to call if you have any questions.
Thanks,
Bill Brewer
Water Treatment Superintendent
City of Winston-Salem
2800 River Ridge Road
Pfafftown, NC 27040
[phone]
[phone] - Fax
[phone] - Cell
[e-mail]
BEGIN:VCARD
VERSION:2.1
X-GWTYPE:USER
FN:William Brewer
TEL;WORK:336-945-1179
ORG:;Utilities
EMAIL;WORK;PREF;NGW:[e-mail]
N:Brewer;William
END:VCARD
NCDENR-Northwest NPDES NC0086762 Permit
Modification Request 010909.pdf
Content -Type: application/pdf
Content -Encoding: base64
William Brewer.vcf
Content -Type: text/plain
Content -Encoding: quoted -printable
1 of 1 1/22/2009 8:03 AM

Winston-Salem a Forsyth County
!County litilities
Water • Sewer • Solid Waste Disposal
Utilities Administration • P. 0. Box 2511 • Winston-Salem, NC 27102 • TcI 336.727.8418 • Fax [phone]
January 9, 2009
Mr. Bob Guerra
Water Quality Section
NPDES Unit, Western Program
1617 Mail Service Center
Raleigh, NC 27699-1617
Re: Northwest WTP NPDES
Permit # NC0086762
Dear Mr. Guerra,
In response to your letter dated December 17, 2008 containing a draft permit for NPDES Permit
#NC0086762 I would like to request the following modifications. With each request is a
justification. Attached is data referenced. The attached finished water data represents water we
use to backwash our filters and deliver to our customers and the raw water data is our raw water
entering our water plant prior to any chemical treatment.
1. We request that 25.0 MGD be listed as a daily maximum as opposed to a monthly average.
The Northwest Plant design is designed for 25.0 MGD and could feasibly be filtered to waste
at the maximum flow. If for flow you require a monthly average we request 35.0 MGD.
2. We request that our monitoring frequency for fluoride be reduced to quarterly based on the
attached data from our finished water. Fluoride is a very stable compound and as you can see
from the data we averaged 0.91 and 0.94 mg/L for the 2007 and 2008 calendar years.
3. We request that the sampling frequency for iron be reduced to once per month based on the
availability of historical data.
4. We request that ammonia nitrogen be eliminated from our sampling requirements. This
facility does not disinfect by chloramination, therefore we feel sampling for this parameter is
unnecessary. The attached data contains monthly sampling of our raw water. As you can see
our raw water is not a source of ammonia. Because we use free chlorine for disinfection and
do not add ammonia to our water there is no appreciable source of ammonia being introduced
into the residuals system.
5. We request that total nitrogen sampling be eliminated from our sampling requirements. As
you can see from our point of entry sampling data, our sampling indicates no detectable
ammonia nitrogen or nitrite nitrogen. Our nitrate nitrogen has averaged 0.51 and 0.53 mg/L
Page 1 of 2

for 2007 and 2008 and is reduced through our process from the average of the raw water
brought into the plant. We do not feel the lagoons significantly impact these parameters.
6. We request that sampling for copper be reduced to once per quarter. As you can see from the
raw water and point of entry data for the 2007 and 2008 calendar years, our raw water or
treated water are not significant sources of copper.
7. We request based on the total phosphorus concentrations present in our finished water that
this sampling requirement be reduced to quarterly.
Thank you in advance for your consideration of these requests. Should you have questions
regarding this matter or require additional information, I can be reached at [phone] to
answer your questions.
Sincerel
David K. Saun
Director of Utilities
Cc: Rose Pruitt, NCDENR-Division of Water Quality
Ron Hargrove, Deputy Director of Utilities
Bill Brewer, Water Treatment Superintendent
Sam Tuttle, Northwest Water Plant NPDES, ORC
Page 2 of 2

WINSTON-SALEM RAW RIVER WATER ANALYSES
WATER PLANT LABORATORIES
DATE: 2007
PLANT: NORTHWEST
(Parameter (mg/L)
Jan. I Feb. ( March ( April 1 May 1 June 1 July I Aug. 1 Sept. 1 Oct. ( Nov. I Dec. ) Avg.
CATIONS (mg/L)
Aluminum (Al)
Antimony (Sb)
Arsenic (As)
Barium (Ba)
Beryllium (Be)
Cadmium (Cd)
Calcium as CaCO3
Calcium (Ca)
0.208
<0.001
<0.001
0.011
<0.001
<0.001
8.14
3.26
0.405
<0.001
<0.001
0.022
<0.001
<0.001
9.49
3.80
0.208
<0.001
<0.001
0.020
<0.001
<0.001
8.99
3.60
0.157
<0.001
<0.001
0.025
<0.001
<0.001
9.06
3.63
0.335
<0.001
<0.001
0.017
<0.001
<0.001
8.86
3.47
0.204
<0.001
<0.001
0.013
<0.001
<0.001
8.84
3.54
0.207
<0.001
<0.001
0.017
<0.001
<0.001
8.56
3.43
0.365
<0.001
<0.001
0.021
<0.001
<0.001
9.41
3.77
0.221
<0.001
<0.001
0.016
<0.001
<0.001
8.66
3.47
0.186
<0.001
<0.001
0.010
<0.001
<0.001
9.61
3.85
0.053
<0.001
<0.001
0.013
<0.001
<0.001
9.61
3.85
0.107
<0.001
<0.001
0.013
<0.001
<0.001
10.09
4.04
0.221
<0.001
<0.001
0.017
<0.001
<0,001
9.10
3.64
Chromium (Cr)
<0.001
0.001
0.002
<0.001
0.001
<0.001
<0.001
<0.001
0.001
0.001
<0.001
0.002
0.001
Copper (Cu)
<0.001
0.001
0.002
0.001
0.001
0.001
0.002
0,004
0.002
0.002
0.002
0.002
0.002
Iron (Fe)
0.325
0.489
0,355
0,340
0.717
0.357
0.429
1.006
0.416
0,419
0.306
0.313
0.456
Lead (Pb)
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
0.001
<0.001
<0.001
<0.001
<0.001
0.001
Magnesium as CaCO3
5.77
6.42
6.18
6.51
6.47
6.67
6.26
6.92
5.77
6.75
6.42
6.92
6.42
Magnesium (Mg)
1.400
1.56
1.50
1.58
1.57
1.62
1.52
1.68
1.400
1.64
1.56
1.68
1.56
Manganese (Mn)
0.019
0.022
0.025
0.033
0.089
0.041
0.029
0.174
0.033
0.029
0.014
0.019
0.044
Mercury (Hg)
Molybdenum (Mo)
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
0.003
<0.001
Nickel (Ni)
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
Potassium (K)
1.31
1.65
1.56
1.74
1.65
2.07
2.30
2.81
2.470
2.75
2.12
2.40
2.07
Selenium (Se)
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
Silica
12.80
13.00
14.35
13.09
'18.76
16.20
16.91
20,56
19.23
12.91
'16.50
10.87
15.43
Silicon (Si)
5.98
6.07
6.71
6.12
8.77
7.57
7.90
9.61
8.99
6.03
7.71
5.08
7.21
Silver (Ag)
<0,001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
Sodium (Na)
4.50
7.17
2.71
4.70
5.00
5.40
6.61
5.70
7.67
5.39
4.18
5.39
5.37
Thallium (TI)
<0.001
<0,001
<0.001
<0.001
<0.001
<0.001
<0.001
<0,001
<0.001
<0.001
<0.001
<0.001
<0.001
Zinc (Zn)
<0.005
<0.005
<0.005
<0.005
<0.005
<0.005
<0.005
0.009
<0.005
<0.005
<0.005
<0.005
0.009
'Parameter (mg/L)'
CATIONS (mg/L)
Aluminum (AI)
Antimony (Sb)
Arsenic (As)
Barium (Ba)
Beryllium (Be)
Cadmium (Cd)
Calcium as CaCO3
Calcium (Ca)
Chromium (Cr)
Copper (Cu)
Iron (Fe)
Lead (Pb)
Magnesium as CaCO3
Magnesium (Mg)
Manganese (Mn)
Mercury (Hg)
Molybdenum (Mo)
Nickel (Ni)
Potassium (K)
Selenium (Se)
Silica
Silicon (Si)
Silver (Ag)
Sodium (Na)
Thallium (TI)
Zinc (Zn)
ANIONS mg/L ANIONS mgfL
Alkalinity Total (CaCO3)
Alkalinity (CO3)
Alkalinity (HCO3)
Alkalinity (OH)
17
17
17
17
16
16
17
17
18
18
17
17
17
17
17
17
18
18
20
20
20
20
22
22
18
18
Chloride
5.42
7.51
<5.00
<5.00
<5.00
<5.00
6.61
5.29
10.15
5.58
<5.00
<5.00
6.76
Fluoride
<0.05
<0.05
<0.05
<0.05
<0.05
<0.05
<0.05
<0.05
0.05
<0.05
<0.05
<0.05
0.05
Nitrate
4.36
3.12
2.11
2.35
2.53
2.75
2.68
2.78
3.16
2.20
3.04
1.76
2.74
Nitrate as N
0.98
0.70
0.48
0.53
0.57
0.62
0.60
0.63
0.71
0.50
0.69
0.40
0.62
Nitrite
0.010
0.010
0.007
0.015
0.024
0.016
0.019
0.027
0.021
0.010
0.011
0.008
0.0148
Nitrite as N
0.003
0,003
0.002
0.005
0.007
0.005
0.006
0.008
0.006
0.003
0.003
0.002
<0.001
Ammonia
<0.10
<0.10
<0.10
<0.10
<0.10
<0.10
<0.10
<0.10
<0.10
<0.10
<0.10
<0.10
<0.10
Phosphorus as ortho
<0.02
0.03
<0.02
<0.02
0.02
0.02
0.06
0.06
0.03
0.05
0.05
0.02
0.0355
Phosphate as o-PO4
<0.05
0.09
<0.05
<0.05
0.05
0.05
0.18
0.17
0.10
0.15
0.14
0.05
0.109
Sulfate
<5.00
<5.00
<5.00
<5.00
<5.00
<5.00
<5.00
<5.00
5.31
<5.00
<5.0D
<5.00
5.31
Total Phosphorus
0.10
0.11
0.07
0.09
0.13
0.32
0.11
0.21
0.10
0.11
0.10
0.12
0.13
Total Phosphate
0.31
0.34
0.21
0.28
0.40
0.98
0.34
0.64
0.31
0.34
0.31
0.37
0.40
Alkalinity Total (CaCO3)
Alkalinity (CO3)
Alkalinity (HCO3)
Alkalinity (OH)
Chloride
Fluoride
Nitrate
Nitrate as N
Nitrite
Nitrite as N
Ammonia
Phosphate as P
Phosphate as o-PO4
Sulfate
Total Phosphorus
Total Phosphate
PHYSICAL (mg/L unless otherwise stated) PHYSICAL (mg/L unless otherwise stated)
Carbon dioxide
4
3
3
3
3
4
5
5
5
5
5
5
4
Conductivity umho/cm
70.4
78.7
60.7
64.6
64.6
66.1
78.6
73.7
101.3
79.4
76.8
77.0
74.3
pH Units
7.03
7.13
7.08
7.12
7.00
7.05
7.08
7.08
6.82
6.90
6.84
6.88
7.00
Residual Chlorine
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Temperature C
9.7
6.8
11.6
11.6
22.3
27.0
28.0
28.8
27.0
23.0
15.5
10.8
18.5
Total Hardness
12
13
11
11
11
11
10
10
11
13
16
17
12
Turbidity NTU
6.62
4.68
4.58
4.41
1.93
2.00
2.26
2.26
2.62
2.68
3.25
2.06
3.28
Note: <=loss than; >=greater than; mgfL= milligrams/Liter
ND : NOT DONE
Carbon dioxide
Conductivity umhofcm
pH Units
Residual Chlorine
Temperature C
Total Hardness
Total Solids
Turbidity NTU

WINSTON-SALEM FINISH,F,D WATER ANALYSES
WATER PLANT LABORATORIES
DATE: 2007
PLANT: NORTHWEST
!Parameter (mg/L) I Jan. I Feb. I Mardi I April I May I June I July I Aug. I Sept. I Oct. I Nov. I Dec. I Avg.
CATIONS (mg!L)
Aluminum (AI)
Antimony (Sb)
Arsenic (As)
Barium (Ba)
Beryllium (Be)
Cadmium (Cd)
0.008
<0.001
<0,001
0.010
<0.001
<0.001
0.010
<0.001
<0.001
0.016
<0.001
<0.001
0.018
<0.001
<0.001
0.014
<0.001
<0.001
0.017
<0.001
<0.001
0.016
<0.001
<0.001
0.026
<0.001
<0.001 '
0.012
<0.001
<0.001
0.016
<0.001
<0.001
0.012
<0.001
<0.001
0.013
<0.001
<0.001
0.011
<0.001
<0.001
0.012
<0.001
<0,001
0.014
<0.001
<0.001
0.031
<0.001
<0.001
0.015
<0.001
<0.001
0.010
<0.001
<0.001
0.011
<0.001
<0.001
0.011
<0.001
<0.001
0.013
<0.001
<0.001
0.012
<0.001
<0.001
0.013
<0.001
<0.001
0.015
<0.001
<0.001
0.013
<0.001
<0.001
Calcium as CaCO3
9.54
7.74
8.22
8.34
7.97
7.19
7.37
7.02
6.44
7.12
8.56
8.14
7.80
Calcium (Ca)
3.82
3.10
3.29
3.34
3.19
2.88
2.95
2.81
2.58
2.85
3.43
3.26
3.13
Chromium (Cr)
<0.001
0.001
0.002
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
Copper (Cu)
0.002
0.003
0.003
0.003
0.003
0.003
0.002
0.005
0.005
0.002
0.003
0.002
0.003
Iron (Fe)
<0.010
<0.010
<0.010
<0.010
<0.01D
<0.010
<0.010
<0.010
<0.010
<0.010
<0.010
<0.010
<0.010
Lead (Pb)
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
Magnesium as CaCO3
7.00
4.98
5.31
5.35
5.39
5.44
5.85
5.89
5.44
5.93
6.47
5.97
5.75
Magnesium (Mg)
1.70
1.21
1.29
1.30
1.31
1.32
1.42
1.43
1.32
1.44
1.57
1.45
1.40
Manganese (Mn)
0.001
0.001
<0.001
<0.001
<0.001
0.001
0.004
0.009
0.002
<0.001
0.001
0.002
0.003
Mercury (Hg)
<0.0004
<0.0004
Molybdenum (Mo)
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
Nickel (Ni)
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
0.001
<0.001
0.001
<0.001
<0.001
<0.001
Potassium (K)
1.73
1.32
1.48
1.48
1.53
1.87
2.13
2.61
2.68
2.52
2.61
2.01
2.00
Selenium (Se)
<0.001
<O.0n1
<0.001
<0.on1
<0.n01
<0.001
<0.001
<0,001
<o.no1
<0.001
<0.on1
<0.001
<0.001
Silica
11.20
12.10
11.93
9.04
10.37
7.67
10.54
10.11
10.18
10.65
12.14
11.20
10.59
Silicon (Si)
5.23
5.65
5.57
4.22
4.85
3.58
4,93
4.72
4.76
4.98
5.67
5.23
4.95
Sliver (Ag)
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.0D1
<0.001
<0.001
<0.001
Sodium (Na)
11.50
7.83
9.72
8.97
9.88
11.80
13.45
12.68
12.19
11.32
11.25
10.30
10.91
Thallium (TI)
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.0D1
<0.001
<0,001
<0.001
Zinc (Zn)
0.205
0.252
0.258
0.288
0.251
0.207
0.205
0.287 _
0.314
0.268
0.322
0.257
0.260
ANIONS mglL
Alkalinity Total (CaCO3)
Alkalinity (CO3)
Alkalinity (HCO3)
Alkalinity (OH)
18
18
17
17
16
16
18
18
18
18
17
17
18
18
19
19
20
20
22
22
22
22
24
24
19
19
Chloride
6.91
6.99
6.93
7.11
7.11
9.17
9.42
9.64
9.87
8.79
7.44
7.45
8.07
Fluoride
0.79
0.80
0.89
0.84
0.92
1.00
1.05
0.94
1.00
0.87
0.96
0.89
0.91
Nitrate
3.45
3.41
2.15
1.37
1.93
2.17
1.47
1.47
2.61
2.15
2.81
2.10
2.26
Nitrate as N
0.78
0.77
0.49
0.31
0.44
0.49
0.33
0.33
0.59
0,49
0.63
0.47
0.51
Nitrite
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
Nitrite as N
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
Phosphorus as ortho
0.30
0.32
0.33
0,33
0.26
0.22
0.26
0.23
0.29
0.27
0.32
0.33
0.29
Phosphate as o-PO4
0.92
0.98
1.02
1.00
0.81
0.69
0.80
0.72
0.88
0.83
0.99
1.01
0.887
Sulfate
9.83
9.04
10.06
11.28
11.01
14.06
13.24
15.09
15.31
14.42
14.05
12.55
12.49
Total Phosphorus
0.55
0.57
0.40
0.40
0.38
0.35
0.35
0.34
0.28
0.35
0.37
0.37
0.39
Total Phosphate
1.69
1.73
1.23
1.23
1.17
1.07
1.07
1.04
0.86
1.07
1.14
1.14
1.20
(Parameter (mg/L) I
CATIONS (mg/L)
Aluminum (Al)
Antimony (Sb)
Arsenic (As)
Barium (Ba)
Beryllium (Be)
Cadmium (Cd)
Calcium as CaCO3
Calcium (Ca)
Chromium (Cr)
Copper (Cu)
Iron (Fe)
Lead (Pb)
Magnesium as CaCO3
Magnesium (Mg)
Manganese (Mn)
Mercury (Hg)
Molybdenum (Mo)
Nickel (Ni)
Potassium (K)
Selenium (Se)
Silica
Silicon (Si)
Silver (Ag)
Sodium (Na)
Thallium (TI)
Zinc (Zn)
ANIONS mglL
Alkalinity Total (CaCO3)
Alkalinity (CO3)
Alkalinity (HCO3)
Alkalinity (OH)
Chloride
Fluoride
Nitrate
Nitrate as N
Nitrite
Nitrite as N
Phosphate as P
Phosphate as o•PO4
Sulfate
Total Phosphorus
Total Phosphate
PHYSICAL (mglL unless otherwise stated) PHYSICAL (mglL unless otherwise stated)
Carbon dioxide
3
3
3
3
4
4
4
4
4
4
2
4
3
Conductivity umho/cm
92.2
91.0
89.3
89.2
95.9
106.9
113.8
117.6
123.1
115.6
112.7
110.3
104.8
pH Units
7.37
7.38
7.29
7.33
7.31
7.50
7.62
7.62
7.47
7.53
7.52
7.52
7.46
Residual Chlorine
1.31
1.27
1.25
1.25
1.26
1.51
1.55
1.55
1.49
1.56
1.36
1.26
1.39
Temperature C
9.7
6.8
11.6
11.6
22.3
27.0
28.0
28.9
27.0
23.0
15.5
10.8
18.5
Total Hardness
12
13
12
12
11
11
11
11
11
14
17
17
13
Total Dissolved Solids
52.0
48.0
60.0
61.0
40,0
64.0
72.0
81.0
64.0
76.0
48.0
83.0
62.4
Turbidity NTU
0.080
0.060
0.080
0.070
0.060
0.070
0.060
0.080
0.070
0.060
0.050
0.050
0.066
Note: <=less than: >=g eater than: mglL= milligrams/Liter
ND NOT DONE
Carbon dioxide
Conductivity umho/cm
pH Units
Residual Chlorine
Temperature C
Total Hardness
Total Solids
Turbidity NTU

wiS1060ATTI ( �N�E�,KWATEk ANALYsIs
WATER PL LA�t]RATORIES
DATE: 2008
PLANT: NORTHWEST
Parameter
mg L
Jan.
Feb.
March
Apn
May
June
Ju y
Aug.
Sept.
Oct.
Nov.
Dec.
Avg.
CATIONS (mgiL)
Aluminum (Al)
Antimony (Sb)
Arsenic (As)
Barium (Ba)
Beryllium (Be)
Cadmium (Cd)
Calcium as CaCO3
Calcium (Ca)
0.076
<0.001
<0.001
0.015
<0.001
<0.001
9.29
3.72
0.065
<0.001
<0.001
0.006
<0.001
<0.001
9,09
3.64
0.315
<0.001
<0.001
0.023
<0.001
<0.001
11.54
4.62
2.564
<0.001
<0.001
0.040
<0.001
<0.001
15.43
6.18
0.179
<0.001
<0.001
0.018
<0.001
<0.001
11.26
4.51
0.241
<0.001
<0.001
0.017
<0.001
<0.001
9.81
3.93
0.437
<0.001
<0.001
0.021
<0.001
<0.001
11.91
4.77
0.772
<0.001
<0.001
0.058
<0.001
<0.001
8.59
3.44
0.811
<0.001
<0.001
0.019
<0.001
<0.001
8.74
3.50
0.188
<0.001
<0.001
0.013
<0.001
<0.001
9.61
3.85
0.141
<0.001
<0.001
0.011
<0.001
<0.001
9.11
3.65
0.089
<0.001
<0.001
0.010
<0.001
<0.001
9.84
3.9
0.490
<0.001
<0.001
0.021
<0.001
<0.001
10.35
4.15
Chromium (Cr)
0.001
<0.001
0.001
0.01
0.001
0.001
0.001
0.001
<0.001
<0.001
<0.001
<0.001
0.002
Copper (Cu)
<0.001
<0.001
0.002
0.010
0.006
0.001
0.002
0.003
0.003
0.002
0.001
<0.001
0.003
Iron (Fe)
0.291
0.083
0.719
3.770
0.543
0.600
0.696
0.953
0.733
0.3502
0.1970
0.2560
0.77
Lead (Pb)
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
0.001
<0.001
0.001
<0.001
<0.001
<0.001
Magnesium as CaCO3
6.26
8.26
8.61
13.05
8.28
7.78
8.11
15.85
6.30
6,88
7.08
6.26
8.39
Magnesium (Mg)
1.52
1.520
2.090
3.17
2.01
1.89
1.97
3.85
1.530
1.67
1.72
1.52
2.04
Manganese (Mn)
0.010
0.007
0.046
0.193
0.051
0.054
0.057
0.080
0.044
0.0250
0.0170
0.0080
0.049
Mercury (Hg)
Molybdenum (Mo)
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
Nickel (Ni)
<0.001
<0.001
<0.001
0.004
0.001
<0.001
<0.001
0.002
<0.001
0.001
<0.001
<0.001
0.002
Potassium (K)
1.86
1.63
2.880
5.47
2.87
2.98
2.97
3.43
2.48
2.59
2.260
1.78
2.77
Selenium (Se)
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
Silica
11.90
14.37
16.86
19.15
19.50
17.11
17.27
11.21
19.08
15.79
12.73
15.91
Silicon (Si)
5.56
6.71
7.88
8.95
9.11
8.00
8.07
5.24
8.92
7.38
5.95
0.00
6.81
Silver (Ag)
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
Sodium (Na)
4.37
4.43
5.65
6.32
5.79
6.67
5.84
8.62
4.46
5.38
4.67
4.55
5,56
Thallium (11)
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0,001
<0.001
<0.001
Zinc (Zn)
<0.005
<0.005
<0.005
0.011
0.006
0.005
0.006
<0.005
<0.005
<0.005
<0.005
<0.005
<0.005
!Parameter (mg/L)j
CATIONS (mgiL)
Aluminum (Al)
Antimony (Sb)
Arsenic (As)
Barium (Ba)
Beryllium (Be)
Cadmium (Cd)
Calcium as CaCO3
Calcium (Ca)
Chromium (Cr)
Copper (Cu)
Iron (Fe)
Lead (Pb)
Magnesium as CaCO3
Magnesium (Mg)
Manganese (Mn)
Mercury (Hg)
Molybdenum (Mo)
Nickel (Ni)
Potassium (K)
Selenium (Se)
Silica
Silicon (Si)
Silver (Ag)
Sodium (Na)
Thallium (TI)
Zinc (Zn)
ANIONS mgiL ANIONS mg/L
Alkalinity Total (CaCO3)
Alkalinity (CO3)
Alkalinity (HCO3)
Alkalinity (OH)
20
20
20
20
20
20
19
19
18
18
20
20
19
19
25
25
19
19
21
21
22
22
0
20
19
Chloride
<5.00
<5.00
<5.00
<5.00
<5.00
<5.00
15.46
5.59
<5.00
<5.00
<5.00
10.52
Fluoride
<0.10
<0.10
<0.10
<0.10
<0.10
<0.10
<0.10
<0.10
<0.10
<0.10
<0.10
<0.10
Nitrate
2.00
1.93
2.26
2.49
1.61
3.25
3.17
2.40
3.190
1.78
0.85
2.27
Nitrate as N
0.45
0.44
0.51
0.56
0.36
0.73
0.72
0,54
0.72
0.40
0.19
0.00
0.53
Nitrite
0.006
0.010
0.021
0.002
0.016
0.057
0.027
0.016
0.013
0.004
0.006
0.0162
Nitrite as N
0.002
0.003
0.006
0.001
0.005
0.017
0.008
0.005
0.004
0.001
0.002
0.000
0.0045
Ammonia
<0.10
<0.10
<0.10
<0.10
<0.10
<0.10
<0.10
<0.10
<0.10
<0.10
<0.10
<0.10
<0.10
Phosphorus as ortho
0.08
<0.02
0.05
0.02
<0.02
0.05
0.02
0.06
0.07
0.05
0.04
0.00
0.0433
Phosphate as o-PO4
0.26
<0.05
0.15
0.06
<0.05
0.14
0.05
0.20
0.21
0.15
0.11
0.087
Sulfate
<5.00
<5.00
<5.00
5.14
<5.00
<5.00
<5.00
5.23
<5.00
<5.00
<5.00
5.19
Total Phosphorus
0.17
0.18
0.16
0.09
0.07
0.16
0.17
0.20
0.31
0.11
0.18
0.16
Total Phosphate
0.52
0.55
0.50
0.28
0.21
0.50
0.53
0.61
0.95
0.34
0.55
0.00
0.46
PHYSICAL mgiL unless otherwise stated)
Carbon dioxide
4
4
4
5
5
6
7
8
7
6
4
5
Conductivity untholcm
67.2
69.0
64.0
58.1
66.3
79.9
81.3
93.1
68.5
71.9
72.0
71.9
pH Units
6.82
6.96
8.94
6.80
8.71
6.67
6.80
6.70
6.70
6.90
6.90
6.81
Residual Chlorine
Temperature C
8.3
9.5
12.8
16.9
21.5
27.9
29.1
29.0
26.2
20.6
13.8
19.6
Total Hardness
16
17
14
12
12
12
12
13
12
13
13
13
Turbidity NTU
6.4
5.9
6.4
4.0
5.8
3.19
4.07
3.9
4.7
4.0
2.2
4.60
Note: <=less than: >=greater than; mg/L= milligrams/Liter
ND NOT DONE
Alkalinity Total (CaCO3)
Alkalinity (CO3)
Alkalinity (HCO3)
Alkalinity (OH)
Chloride
Fluoride
Nitrate
Nitrate as N
Nitrite
Nitrite as N
Ammonia
Phosphate as P
Phosphate as o•PO4
Sulfate
Total Phosphorus
Total Phosphate
PHYSICAL (mgiL unless otherwise stated)
Carbon dioxide
Conductivity umhofcm
pH Units
Residual Chlorine
Temperature C
Total Hardness
Total Solids
Turbidity NTU

WINSTON-SALEM FINISHED WATER ANALYSIS
WATER PLANT LABORATORIES
DATE: 2008
PLANT: NORTHWEST
(Parameter (mg/L)
I Jan. 1 Feb. I March 1 April I May I June I July I Aug. 1 Sept. I Oct. 1 Nov. I Dec. 1 Avg.
CATIONS (mg/L)
Aluminum (Al)
Antimony (Sb)
Arsenic (As)
Barium (Ba)
Beryllium (Be)
Cadmium (Cd)
0.010
<0.001
<0.001
0.014
<0.001
<0.001
0.004
<0.001
<0.001
0.005
<0.001
<0.001
0.008
<0.001
<0.001
0.012
<0.001
<0.001
0.011
<0.001
<0.001
0.012
<0.001
<0.001
0.013
<0.001 1
<0.001
0.016
<0.001
<0.001
0.012
<0.001
<0.001
0.012
<0.0D1
<0.001
0.021
<0.001
<0.001
0.013
<0.001
<0.001
0.018
<0.001
<0.001
0.011
<0.001
<0.001
0.016
<0.001
<0.001
0.012
<0.001
<0.001
0.013
<0.001
<0.001
0.013
<0.001
<0.001
0.009
<0.001
<0.001
0.011
<0.001
<0.001
0.010
<0.001
<0.001
0.010
<0,001
<0.001
0.012
<0.001
<0.001
0.012
<0.001
<0.001
Calcium as CaCO3
8.41
8.27
9.01
7.84
7.92
7.02
6.44
7.67
6.82
8.04
8.74
8.61
7.90
Calcium (Ca)
3.37
3.31
3.61
3.14
3.17
2.81
2.58
3.07
2.73
3.22
3.50
3.5
3.16
Chromium (Cr)
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
0.001
<0.001
0.001
<0.001
<0,001
0.001
Copper (Cu)
0.001
<0.001
0.002
0.002
0.004
0.002
0.003
0.003
0.003
0.003
0.003
0.002
0.003
Iron (Fe)
<0.010
<0.010
<0.010
<0.010
<0.010
<0.010
<0.010
<0.010
<0.010
<0.010
<0.010
<0,010
<0.010
Lead (Pb)
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
Magnesium as CaCO3
5.81
5.56
6.05
5.68
5.81
6.22
6.75
7.17
5.93
6.09
6.42
5.72
6.10
Magnesium (Mg)
1.41
1.350
1.470
1.38
1.41
1.51
1.64
1.74
1.440
1.48
1.56
1.39
1.48
Manganese (Mn)
0.003
<0.001
0.001
0.001
0.002
0.002
0.001
0.002
<0.001
0.0003
<0.001
<0.001
0.002
Mercury (Hg)
Molybdenum (Mo)
<0.001
<0.001
<0,001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
Nickel (Ni)
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
Potassium (K)
1.92
1.65
1.810
1.66
1.94
2.26
2.77
3.06
2.47
2.26
2.18
1.77
2.15
Selenium (Se)
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
Silica
10.70
10.02
8.28
7.15
11.00
10.81
8.51
10.53
9.99
11.21
10.72
8.03
9.75
Silicon (Si)
5.00
4.68
3.87
3.34
5.14
5.05
3.98
4.92
4.67
5.24
5.01
3.75
4.55
Silver (Ag)
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
Sodium (Na)
9.41
10.19
11.56
11.02
10.91
14.32
15.29
16.54
14.73
12.98
10.94
9.97
12.32
Thallium (TI)
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
Zinc (Zn)
0.303
0.248
0.275
0.321
0.319
0.293
0.264
0.213
0.278
0.309
0.279
0.296
<0.005
ANIONS mg/L
Alkalinity Total (CaCO3)
Alkalinity (CO3)
Alkalinity (HCO3)
Alkalinity (OH)
21
21
22
22
21
21
20
20
20
20
22
22
23
23
25
25
22
22
23
23
24
24
0
22
20
Chloride
6.60
8.21
7.01
7.10
7.22
8.68
8.93
9.75
8.47
7.81
7.07
6.89
7.81
Fluoride
0.76
0.89
1.01
1.02
1.04
0.92
0.94
1.02
0.95
0.96
0.86
0.92
0.94
Nitrate
2.56
2.14
1.67
1.72
1.23
1.36
2.09
1.64
0.989
2.02
1.97
1.46
1.74
Nitrate as N
0.56
0.48
0.38
0.39
0.28
0.31
0.47
0.37
0.22
0.46
0.44
0.33
0.53
Nitrite
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
Nitrite as N
<0.001
<0.001
<0.001
<0.001
<11001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
Phosphorus as P
0.34
0.33
0.33
0.31
0.30
0.28
0.35
0.29
0.32
0.32
0.32
0.32
0.3160
Phosphate as o-PO4
1.04
1.00
1.01
0.95
0.91
0.85
1.06
0.86
0.99
0.99
0.98
0.96
0.087
Sulfate
12.41
14.19
13.27
13.45
12.24
14.31
13.13
14.65
15.10
13.45
13.91
11.80
13.49
Total Phosphorus
0.41
0.42
0.39
0.43
0.39
0.42
0.38
0.36
0.36
0.44
0.44
0.41
0.40
Total Phosphate
1.26
1.29
1.20
1.33
1.20
1.28
1.17
1.10
1.11
1.35
1.35
1.26
1.24
'Parameter (mg/L)
CATIONS (mglL)
Aluminum (Al)
Antimony (Sb)
Arsenic (As)
Barium (Ba)
Beryllium (Be)
Cadmium (Cd)
Calcium as CaCO3
Calcium (Ca)
Chromium (Cr)
Copper (Cu)
Iron (Fe)
Lead (Pb)
Magnesium as CaCO3
Magnesium (Mg)
Manganese (Mn)
Mercury (Hg)
Molybdenum (Mo)
Nickel (Ni)
Potassium (K)
Selenium (Se)
Silica
Silicon (Si)
Silver (Ag)
Sodium (Na)
Thallium (TI)
Zinc (Zn)
ANIONS mg/L
Alkalinity Total (CaCO3)
Alkalinity (CO3)
Alkalinity (HCO3)
Alkalinity (OH)
Chloride
Fluoride
Nitrate
Nitrate as N
Nitrite
Nitrite as N
Phosphate as P.
Phosphate as o-PO4
Sulfate
Total Phosphorus
Total Phosphate
PHYSICAL (mgIL unless otherwise stated) PHYSICAL (mglL unless otherwise stated)
Carbon dioxide
3
4
4
4
4
5
4
5
4
4
3
4.0
Conductivity umholcm
104.8
107.3
103.5
98.3
99.7
116.1
117.3
127.5
76.0
113.2
112.7
107.2
107.0
pH Units
7.52
7.53
7.48
7.50
7.50
7.44
7.50
7.50
7.50
7.50
7.50
7.60
7.5
Residual Chlorine
1.28
1.29
1.29
1.28
1.38
1.58
1.59
1.48
1.53
1.67
1.48
1.4
Temperature C
8.3
9.5
12.8
16.9
21.5
27.9
29.1
29.0
26.2
20.6
13.8
19.6
Total Hardness
17
17
14
12
12
13
12
13
12
13
14
13.5
Total Dissolved Solids
80.0
48.0
98.0
104.0
86.0
89.0
70.0
61.0
46.0
46.0
72.0
70.0
72.5
Turbidity NTU
0.06
0.06
0.05
0.06
0.06
0.06
0.09
0.08
0.05
0.05
0.06
0.06
Note: <=loss than: >=greater than: mg/L= milligrams/Liter
ND. NOT GONE
Carbon dioxide
Conductivity umho/cm
pH Units .
Residual Chlorine
Temperature C
Total Hardness
Total Solids
Turbidity NTU

North Carolina
Forsyth County
AFFIDAVIT OF PUBLICATION
Before the undersigned, a Notary Public of said County and State, duly commissioned, qualified, and
authorized by law to administer oaths, personally appeared Andrea Moses who being first duly sworn,
deposes and says: that she is Accounts Receivable Clerk of The Winston Salem Chronicle Publishing
Company, engaged in the publishing of a newspaper known as The Chronicle, published issued and
entered as second-class mail in the City of Winston Salem, North Carolina in said County and State: that
she is authorized to make this affidavit and sworn statement: that the notice or other legal advertisement,
a true copy of which is attached hereto, was published in the The Chronicle, on the following dates:
PUBLIC NOTICE
NOTIFICATION OF INTENT TO ISSUE A NPDES WASTEWATER PERMIT
PUBLISHED DECEMBER 25, 2008
and that the said newspaper in which such notice, paper, document, or legal advertisement was published
was, at the time of each and every subscription, a newspaper meeting all of the requirements and
qualifications of Section 1-597 of the General Statutes of North Carolina and was a qualified newspaper
within the meaning of Section 1-597 of the General Statutes of North Carolina.
This 26thdav of December 2008
�) Paulette L. Moore 1
1 Notary Public
ti Forsyth County
North Carolina
b My Commission Expires 2/22/2011,�
Sworn to and subscribed before me this 26"'day of December 2008
Signature of person making affidavit)
Andrea Moses
1
\r)
(Notary Public)
N C• U v y , U
V c r, U.c 0
wj o �, Ev
O. >, C .CC .- w E O
�0 o o yv
2 p.� C
W ^ � O TJ w•� cv '� N
;"0 Ew 0 .D. 0 �.w-.
q.,7 p. o y.As R'00
v
a.0 2b w
ti w U O Z N cC
t.uO .°' .
>
U .. U o
E.z
oEa=E:9 0as:
u3 E ,Do
E C C
T O
0 c•—J O y �. p•—
V O. y
.� ro _
t. y 00.E 7 0U.> J]
3w�Qy�Aa.EAo.
° . Z c •r�Ua' E Ecazi0La "oEc pA
wc
UcUE- 'nc0�oCp2 gcO.Ca-'.G •a y:oo o R U a>a A F wO-O'c.,_•n U C C_ 3aEC03EC^E7s C .C
, 01 o4.•- c E• 'n.y o 5 o ems°
N 0 C a .O o o Vi 0 .y U -3
w0 y P. U.E O'Ry p. CO'- >,L U
"cam -0 c a l C' 5-
:°•� wo o`° ,'4 ow a2i 0
rO� Uw,UwuvZE•�v)
0' 0 C _. ti C o ... o 0 Z
:n 00 O .E w ,� 0 y c7 U H N '. .
.a: E U, 0 D .- �U. V? C C V —co
0 o.E c* Uo >vo V R mv,,_.
UwEcaFcm6a�.E.EE73Na
The Chronicle December 25, 2008

Table 1. Project Information
Facility Name
WWTP Grade
NPDES Permit
Outfall
Flow, Qw (MGD)
Receiving Stream
Stream Class
7Q10s (cfs)
7Q10w (cfs)
3002 (cfs)
QA (cfs)
Time Period
Data Source(s)
NorthwestWTP
I
NC0086762
001
UT to Bashavia Creek
Table 2. Parameters of Concern
Par01
Par02
Par03
Par04
Par05
Par06
Par07
Par08
Par09
Par10
Par11
Par12
Par13
Par14
Par15
Name
Type Chronic Modifier Acute PQL Units
Al
Iron
NC
NC
1000
mg/L
ug/L
npdes rpa 200403(5-13-08)1, input
12/1 /2008

REASONABLE POTENTIAL ANALYSIS
Al
Iron
Date
BDL=1/2DL
Results
Date
BDL=1/2DL
Results
1
Jul-2007
0.2
0.2
Std Dev.
0.1465
1
Jul-2007
17.6
17.6
Std Dev.
16.5122
2
Jul-2007
0.2
0.2
Mean
0.2866
2
Jul-2007
23
23.0
Mean
15.1711
3
Jul-2007
0.3
0.3
C.V.
0.5076
3
Jul-2007
0.266
0.3
C.V.
1.0884
4
Jul-2007
0.2
0.2
n
60
4
Jul-2007
18.4
18.4
n
60
5
Aug-2007
0.1
0.1
5
Aug-2007
11.5
11.5
6
Aug-2007
0.1
0.1
Mult Factor =
1.5200
6
Aug-2007
14.4
14.4
Mult Factor =
2.1800
7
Aug-2007
0.1
0.1
Max. Value
0.8 mg/L
7
Aug-2007
12.4
12.4
Max. Value
68.2 ug/L
8
Aug-2007
0.2
0.2
Max. Pred Cw
1.3 mg/L
8
Aug-2007
21.5
21.5
Max. Pred Cw
148.7 ug/L
9
Sep-2007
0.2
0.2
9
Sep-2007
16
15.8
10
Sep-2007
0.1
0.1
10
Sep-2007
12
12.2
11
Sep-2007
0.3
0.3
11
Sep-2007
30
30.3
12
Sep-2007
0.2
0.2
12
Sep-2007
19
18.5
13
Oct-2007
0.2
0.2
13
Oct-2007
21
21.0
14
Oct-2007
0.2
0.2
14
Oct-2007
18
17.8
15
Oct-2007
0.1
0.1
15
Oct-2007
13
13.3
16
Oct-2007
0.2
0.2
16
Oct-2007
20
19.6
17
Oct-2007
0.3
0.3
17
Oct-2007
17
16.6
18
Nov-2007
0.6
0.6
18
Nov-2007
59
58.9
19
Nov-2007
0.3
0.3
19
Nov-2007
28
28.0
20
Nov-2007
0.2
0.2
20
Nov-2007
22
21.9
21
Nov-2007
0.2
0.2
21
Nov-2007
23.2
23.2
22
Dec-2007
0.2
0.2
22
Dec-2007
0
0.2
23
Dec-2007
0.2
0.2
23
Dec-2007
0
0.2
24
Dec-2007
0.2
0.2
24
Dec-2007
0
0.2
25
Dec-2007
0.2
0.2
25
Dec-2007
0
0.2
26
Dec-2007
0.2
0.2
26
Dec-2007
0
0.2
27
Jan-2008
0.1
0.1
27
Jan-2008
0.1
0.1
28
Jan•2008
0.3
0.3
28
Jan-2008
0
0.3
29
Jan-2008
0.2
0.2
29
Jan-2008
0
0.2
30
Jan-2008
0.3
0.3
30
Jan-2008
0
0.3
31
Feb-2008
0.2
0.2
31
Feb-2008
0
0.2
32
Feb-2008
0.4
0.4
32
Feb-2008
0
0.4
33
Feb-2008
0.3
0.3
33
Feb-2008
0
0.3
34
Feb-2008
0.3
0.3
34
Feb-2008
31
31.4
35
Mar-2008
0.3
0.3
35
Mar-2008
26
26.0
36
Mar-2008
0.4
0.4
36
Mar-2008
35
35.0
37
Mar-2008
0.4
0.4
37
Mar-2008
40
40.4
38
Mar-2008
0.5
0.5
38
Mar-2008
52
52.1
39
Mar-2008
0.7
0.7
39
Mar-2008
68
68.2
40
Apr-2008
0.8
0.8
40
Apr-2008
1
0.8
41
Apr-2008
0.6
0.6
41
Apr-2008
1
0.6
42
Apr-2008
0.5
0.5
42
Apr-2008
1
0.5
43
Apr-2008
0.4
0.4
43
Apr-2008
0
0.4
44
May-2008
0.3
0.3
44
May-2008
0
0.3
45
May-2008
0.4
0.4
45
May-2008
0
0.4
46
May-2008
0.5
0.5
46
May-2008
1
0.5
47
May-2008
0.3
0.3
47
May-2008
0
0.3
48
Jun-2008
0.3
0.3
48
Jun-2008
0
0.3
49
Jun-2008
0.2
0.2
49
Jun-2008
0
0.2
50
Jun-2008
0.2
0.2
50
Jun-2008
0
0.2
51
Jun-2008
0.2
0.2
51
Jun-2008
0
0.2
52
Jun-2008
0.2
0.2
52
Jun-2008
0
0.2
53
Jul-2008
0.5
0.5
53
Jul-2008
45
45.1
54
Jul-2008
0.4
0.4
54
Jul-2008
36
36.3
55
Jut-2008
0.3
0.3
55
JuI-2008
29
28.9
56
Jul-2008
0.2
0.2
56
Jul-2008
24
24.3
57
Aug-2008
0.3
0.3
57
Aug-2008
25
25.4
58
Aug-2008
0.3
0.3
58
Aug-2008
34
34.3
59
Aug-2008
0.2
0.2
59
Aug-2008
19
18.6
60
Aug-2008
0.2
0.2
60
Aug-2008
20
20.2
199
199
200
200
-1-
AL Iron RPAI(12-03-08).xls, data
12/1/2008

REASONABLE POTENTIAL ANALYSIS
NorthwestWTP
NC0086762
Time Period 0
Ow (MGD) 25
7010S (cfs) 0
7010W (cfs) 0
3002 (cis) 0
Avg. Stream Flow, QA (cfs) 0
Reeving Stream UT to Bashavia Creek
WWTP Class
!WC (%) 0? 7010S WA
0 7Q10W N/A
30Q2 N/A
® QA N/A
Stream Class C
Outfall 001
Ow=25MGD
PARAMETER
TYPE
(11
STANDARDS &
CRITERIA (2)
POL
Units
REASONABLE POTENTIAL RESULTS
RECOMMENDED ACTION
NC WQ$/ NFAV/
Chronic Acuts
n II:Nt Max Fred Cw AtlonroNo Cw
Al
NC
m0IL
60 60
1.3
Acute: N/A
_ _ _VA
Chrontc:- 8LUE!
No NC water quality standard for AL.
_-- -----
Iron
NC
1000.0
ug/L
60 60
146.7
Acute: N/A
_ _
Chro_nic: - #VALUE!
NO RPA indicated.
_ --_— — __— — — — — _._.___ _ —_—
0 0
WA
Acute: WA
Chronic: Error 0
Type
--•—•—•-------------------------
0 0
N/A
Acute: N/A
Chranio: irror 0
Type
---------------------'---•—•—•—
o 0
N/A
Acute: N/A
Chronic: Error 0
Type
— — — — — — — — — — — — — — —
0 0
WA
Acute: WA
Chranic: Error 0
Type
— — — — — — — — — — — — — — —
0 0
N/A
Acute: N/A
Chronic: Error 0
Type
—•—•—_—.-----------------------
0 0
N/A
Acute: WA
Chronic: Error 0
Type
---'---------------------------
0 0
WA
Acute: WA
Chro dc: error 0
Type
0 0
WA
Acute: WA
Chronic: Error 0
Type
—'-----------------'-----------
0 0
WA
Acute: WA
Chronic: irror 0
Type
0 0
N/A
Acute: N/A
Chronc: irrar 0
Type
—'---•-------------------------
0 0
WA_
Acute: N/A
Chronic: error 0
Type
—.—.—.—.—.—.-------'-----------
0 0
WA
Acute: WA
Chronic: Error 0
Type
-----------------------------•—
0 0
rain
Acute: WA
Chronic: irror 0
Type
----------------
'Legend:
C = Carcinogenic
NC = Non -carcinogenic
A = Aesthetic
Freshwater Discharge
AL Iron RPAI(12-03-08).ds, rpa
12/14/2008

DENR/DWQ
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
NPDES No. NC0086762
Facility Information
Applicant/Facility Name:
Winston-Salem, Forsyth County Utilities Commission
Applicant Address:
P.O. Box 2511, Winston-Salem, NC 27102
Facility Address:
2800 River Ridge Road near Beroth Road
Permitted Flow
25.0 MGD
Type of Waste:
100% Industrial
Facility/Permit Status:
Renewal
County:
Forsyth
Miscellaneous
Receiving Stream:
UT to Bashavia Creek
Regional Office:
Winston-Salem
Stream Classification:
C
USGS Topo Quad:
Vienna
303(d) Listed?:
No
Permit Writer:
Bob Guerra
Subbasin:
03-07-02
Date:
October 14, 2008
Drainage Area (mi2):
NA
•
Summer 7Q10 (cfs)
NA
Winter 7010 (cfs):
NA
Average Flow (cfs):
NA
IWC (%):
NA
SUMMARY
The Winston-Salem, Forsyth County Utilities Commission has applied for renewal of their existing NPDES permit for a
conventional water treatment plant (WTP) discharge into an unnamed tributary to Bashavia Creek. The proposed discharge
will be 25 MGD of treated filter backwash water. The last four (4) Inspections by regional staff reflect facility as well
operated with no compliance issues noted at time of inspections. Staff inspection of 6-24-08 noted the existence a rock dam
built during the construction phase below the effluent pipe. Staff has no issue with the removal of this rock dam provided
work proceeds upstream of the dam and precautions are taken to retain sediment during removal. The inspector
recommended further discussion with Land Resources.
ADDITIONS TO PERMIT
Effluent limitations and monitoring requirements have been established in accordance with the permitting strategy for WTPs
dated October, 2008.
Y Limits added
o Flow at 35.0 MGD
• Limits / Monitorinq deleted
o Settleable Solids, Turbidity
Monitoring Additions
o pH, Calcium, Manganese, Fluoride, Total Copper, Magnesium, Fluoride, Total Zinc, Ammonia Nitrogen,
Total phosphorus and total nitrogen.
• Whole Effluent Toxicity
o Quarterly Monitoring Purposes Only
▪ TRC Reopener
COMPLIANCE SUMMARY:
06-08 TRC Daily Max Exceeded BPJ
12-07 TSS Daily Max Exceeded BPJ
PROPOSED SCHEDULE FOR PERMIT ISSUANCE:
Draft Permit to Public Notice: December 3, 2008
Permit Scheduled to Issue: February 26, 2009
STATE CONTACT:
If you have any questions on any of the above information or on the attached permit, please contact Bob Guerra at [phone]
REGIONAL OFFICE COMMENT:
NAME: DATE:
Winston-Salem NW Watcr Treatment Plant
NPDES Renewal NC0086792

12
Pointer 3610844.92" NI 80•2508.93W elev 814 It
2800 River Ridgir Rd, NC 27040
,....
".1' . .4- •-• • _..., . ., . -... n.
NC008676 Outfall 001
Lc,zupwcaogaiacto
Of3.111:3titt)i.DIII)
A2OZ] MEM <D.I.kt
`qv
Eye alt

Northwest Water Treatment Plant
Production Capacity = 25.0 MGD
City of Winston-Salem
NPDES# = NC0086762
25 MGD
50 MGD
(Vadin River
50 MG
Raw Water Of
Stream Storage
Basin #1
100 MG
Raw Water Of
Stream Storage
Basin #2
The Northwest WTP has
two treatment trains that
are 12.5 MGD each for a
total plant capacity of 25.0
MGD.
Chlorine
Alum
25 MGD
Flash Mix
Flocculation
i
Sedimentation
Basins
Caustic Soda
Chlorine
Filters 1-6
Fluoride
Ortho-Phosphate
Alum
Chlorine
KMnO4
Caustic Soda
Alum
25 MGD
CDutra11001
Residual
Lagoon
(4.3 MG)
--4.0 MGD
Residual
Lagoon
(4.3 MG)
25 MGD
30 MGD
► Entry Point-EP3
4-- 25 MGD
Chlorine
5.0 MG
Clearwell
5.0 MG
Clearwell
(0:89 MG
Equalization
Basin
1
Distribution
System
A

Northwest Water Treatment Plant Solids Handling Plan
The Northwest Water Treatment Plant is a 25 MGD water treatment facility. Solids are
generated by sludge removal from two sedimentation basins, backwashing six filters, and
filter -to -waste after filter backwashes are completed. Solids produced from filter backwashes
and filter -to -waste are routed to a flow equalization basin before entering one of two residual
lagoons. Solids removed from the sedimentation basins are routed directly to one of two
residual lagoons. The equalization basin volume is .489 MG and each of the two residual
lagoons has a volume of 3.2 MG.
Permits and Classifications:
1. The discharge from the residuals lagoons is authorized by NPDES Permit NC0086762. The
classification for the discharge is Grade 1 Physical/Chemical.
2. The distribution of the residuals removed from the lagoons is authorized by permit
WQ0031314. The residuals are classified as Class A.
Operation:
1. Each lagoon consists of an oval concrete apron, a clay bottom, and an access ramp used for
residuals removal. The solids stream enters on one end of the lagoon and there is an
adjustable weir on the opposing end allowing decant to flow to the discharge.
2. Each lagoon has the capacity to accept and store the solids produced by the plant for one
year. This allows one lagoon to accept the daily waste stream of solids while the other dries
for removal. Annually, residuals are removed from one lagoon and it is placed into service
and the other is then allowed to dry.
3. Residuals are removed from the lagoons and hauled to the application site by a private
contractor.
Monitoring and Reporting Requirements:
1. Residuals generated by each source -generating facility must be analyzed to demonstrate that
they are non -hazardous.
2. An analysis is required for each residuals land application event.
3. Analyses made according to monitoring and reporting requirements must be certified for the
required parameter(s).
Northwest Water Treatment Plant
Solids Handling Plan
Revised 7/16/2008
1

4. Corrosivity, ignitability, reactivity, and a Toxicity Characteristics Procedure analysis are
required with each residuals application event. The TCLP analysis includes the following
parameters (i.e., note the regulatory level in milligrams per liter in parentheses):
Arsenic (5.0)
Barium (100.0)
Benzene (0.5)
Cadmium (1.0)
Carbon tetrachloride (0.5)
Chlordane (0.03)
Chlorobenzene (100.0)
Chloroform (6.0)
Chromium (5.0)
m-Cresol (200.0)
o-Cresol (200.0)
p-Cresol (200.0)
Cresol (200.0)
2,4-D (10.0)
1,4-Dichlorobenzene (7.5)
1,2-Dichloroethane (0.5)
1,1 -Dichloroethylene (0.7)
2,4-Dinintrotolulene (0.13)
Endrin (0.02)
Hexachlorobenzene (0.13)
Heptachlor (and its hydroxide) (0.008)
Hexachloro-1,3-butadiene (0.5)
Hexachloroethane (3.0)
Lead (5.0)
Lindane (0.4)
Mercury (0.2)
Methoxychlor (10.0)
Methyl ethyl ketone (200.0)
Nitrobenzene (2.0)
Pentachlorophenol (100.0)
Pyridine (5.0)
Selenium (1.0)
Silver (5.0)
Tetrachloroethylene (0.7)
Toxaphene (0.5)
Trichloroethylene (0.5)
2,4,5-Trichlorophenol (400.0)
2,4,6-Trichlorophenol (2.0)
2,4,5-TP (Silvex) (1.0)
Vinyl chloride (0.2)
5. Analyses of the following parameters are also required with each application event:
Aluminum
Ammonia -Nitrogen
Arsenic
Cadmium
Calcium
Copper
Lead
Magnesium
Mercury
Molybdenum
Nickel
Nitrate -Nitrite Nitrogen
Phosphorous
Potassium
pH
Plant Available Nitrogen
(by calculation)
Selenium
Sodium
% Total Solids
TKN
Zinc
6. Data to verify pathogen reduction and vector attraction reduction of the residuals is
maintained on file for five years. The required data is specific to the stabilization process
utilized, and is also sufficient to demonstrate clear compliance with the Class A pathogen
requirements and restrictions noted in 15A NCAC 02T .1106 (a) and (b) and vector attraction
reduction requirements in 15A NCAC 02T .1107 (a).
7. Proper records are maintained tracking all residuals activities. These records include the
source, volume, analysis, and recipient of the residuals.
8. Three copies, per application event, of all required monitoring and reporting requirements are
submitted annually before March 1, to NCDEHNR-DWQ.
Performance Standards:
1. The pollutant concentrations in any residuals that are land applied to any land application site
shall not exceed the following Ceiling and Monthly Average Concentrations (i.e. dry
weight basis):
Northwest Water Treatment Plant
Solids Handling Plan
Revised 7/16/2008
2

Parameter
Monthly Average
Concentration
(milligrams per kilogram)
Ceiling Concentration
(milligrams per kilogram)
Arsenic
41
75
Cadmium
39
85
Copper
1,500
4,300
Lead
300
840
Mercury
17
57
Molybdenum
n/a
75
Nickel
420
420
Selenium
100
100
Zinc
2,800
7,500
2. If residuals are sold or given away, one of the Class A pathogen requirements in 15A NCAC
02T .1106(b) must be met. Aerobic digestion is used to satisfy this requirement.
Application Requirements:
1. Bulk residuals are not applied under the following conditions:
i. If the residuals are likely to adversely affect a threatened or endangered species.
ii. If the application causes prolonged nuisance conditions.
iii. If the land fails to assimilate the bulk residuals or the application causes the
contravention of surface water or groundwater standards.
iv. If the land is flooded, frozen, or snow-covered or is otherwise in a condition such that
runoff of the residuals would occur.
v. Within the 100-year flood elevation unless the bulk residuals are injected or incorporated
within a 24-hour period following the residuals application event.
vi. During a precipitation event or within 24 hours following a rainfall event of 0.5 inches
or greater in a 24-hour period.
vii. If the slope of the land is greater than 10 percent when the bulk residuals are surface
applied, and if the slope of the land is greater than 18 percent when bulk residuals are
injected or incorporated.
viii. If pH maintained in the soil and residuals mixture greater than 6.0.
ix. If the land does not have an established vegetative cover.
x. If the vertical separation of the seasonal high water table and the depth of the residuals
application is less than one foot.
xi. If the vertical separation of the depth to bedrock and the depth of residuals application is
less than one foot.
xii. Application exceeds agronomic rates.
xiii. For residuals treatment and storage facilities, the following minimum setbacks shall be
adhered to:
Northwest Water Treatment Plant
Solids Handling Plan
Revised 7/16/2008
3

Description of Setback
Minimum Setback
(feet)
Habitable residence or place of public assembly under separate ownership or
not to be maintained as part of the project site
100
Property lines
50
Private or public water supply
100
Surface waters (streams, -intermittent and perennial, perennial waterbodies,
and wetlands)
50
Wells with exception to monitoring wells
100
2. When land applying bulk residuals to any land application site, the following minimum
setbacks are maintained at all times:
Setback By Type of Residual (feet)
Description of Setback
Liquid
Cake
Private or public water supply
100
100
Surface waters (streams -intermittent and perennial,
perennial waterbodies, and wetlands)
100
25
Surface water diversions (ephemeral streams,
waterways, ditches)
25
0
Groundwater lowering ditches (where bottom of
The ditch intersects SHWT)
25
0
Subsurface groundwater lowering system
Wells with exception to monitoring wells
100
100
Bedrock outcrops
25
0
3. Specific bulk residuals land application area boundaries are clearly marked on each land
application site prior to and during a residuals land application event.
4. Bulk residuals and other sources of PAN (Plant Available Nitrogen) are applied to all land
application sites at or below agronomic rates. Appropriate agronomic rates are calculated
using expected nitrogen requirements based on the Realistic Yield Expectations (RYE) field
cover for each approved land application site.
Spills and Noncompliance Notification:
1. The Winston-Salem Regional Office, telephone number [phone] will be notified
within 24 hours or the next working day following the occurrence or first knowledge of the
occurrence of any of the following:
i. Any occurrence with the distribution program which results in the land application of
significant amounts of wastes which are abnormal in quantity or characteristic.
ii. Any failure of the distribution program resulting in a release of materials to receiving
waters.
Northwest Water Treatment Plant
Solids Handling Plan
Revised 7/16/2008
4

iii. Any time that self -monitoring information indicates that the facility has gone out of
compliance with the conditions and limitations of the permit or the parameters on which
the system was designed.
iv. Any process unit failure, due to known or unknown reasons, that render the facility
incapable of adequate residual treatment.
v. Any spillage or discharge from a vehicle or piping system during transportation of
residuals.
2. Persons reporting such occurrences by telephone shall also file a written report in letter form
within (5) days following first knowledge of the occurrence. This report must outline the
actions taken or proposed to be taken to ensure that the problem does not recur.
3. Emergency Contacts:
Northwest Water Treatment Plant
Solids Handling Plan
Revised 7/16/2008
Northwest Water Treatment Plant [phone]
Sam Tuttle, Plant Supervisor [phone]
[phone]
Bill Brewer, Water Plants Superintendant [phone]
[phone]
Winston-Salem/Forsyth County [phone]
Utility Administration
DEHNR Regional Office [phone]
General Emergency 911
HazMat
5

FACT SHEET FOR EXPEDITED PERMIT RENEWALS
Basic Information to determine Dotential for expedited permit renewal
Reviewer/Date
V 4 x1/y/2�
Permit Number
Af('00 8 , 742
Facility Name
Way /4 ,' ,) 7?
Basin Name/Sub-basin number
V4 el/Cm / -r let
03 = o 1- OZ
Receiving Stream
It r asla ilia. Ce4
Stream Classification in Permit
C
_
Does permit need NH3 limits?
Ni-
Does permit need TRC limits?
AP, 54'4i-
_
Does permit have toxicity testing?
/6
Does permit have Special Conditions?
es 7�C c�riv r2
Does permit have instream monitoring?
0
Is the stream impaired (on 303(d) list)?
/VD
Any obvious compliance concerns?
Any permit mods since last permit?
4)
Existing expiration date
// 3 //Zvo9
New expiration date
//3 f/ z/5/
New permit effective date
--
Miscellaneous Comments
YES
This is a SIMPLE EXPEDITED permit renewal (administrative
renewal with no changes, or only minor changes such as TRC, NH3,
name/ownership changes). Include conventional WTPs in this group.
YES_Z This is a MORE COMPLEX EXPEDITED permit renewal (includes
Special Conditions (such as EAA, Wastewater Management Plan), 303(d)
listed, toxicity testing, instream monitoring, compliance concerns, phased
limits). Basin Coordinator to make case -by -case decision.
YES_ This permit CANNOT BE EXPEDITED for one of the following reasons:
• Major Facility (municipal/industrial)
• Minor Municipals with pretreatment program
• Minor Industrials subject to Fed Effluent Guidelines (lb/day limits for BOD, TSS,
etc)
• Limits based on reasonable potential analysis (metals, GW remediation organics)
• Permitted flow > 0.5 MGD (requires full Fact Sheet)
• Permits determined by Basin Coordinator to be outside expedited process
TB Version 8/18/2006 (NPDES Server/Current Versions/Expedited Fact Sheet)