WQ0031314_Final Permit_20070328

�O� WAT��Q Michael F. Easley, Governor
9 William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
(� C Alan W. Klimek, P.E., Director
Division of Water Quality
March 28, 2007
David Saunders
Winston-Salem/Forsyth County Utilities Commission
P.O. Box 2511
Winston-Salem, NC 27102
Subject: Permit No. WQ0031314
Northwest Water Treatment Plant
Distribution of Class A
Wastewater Residuals
Forsyth County
Dear Mr. Saunders:
In accordance with your permit application package received on January 23, 2007, we are
forwarding herewith Permit No. WQ0031314, dated March 28, 2007, to Winston-Salem/Forsyth County
Utilities Commission for the operation of a wastewater residuals facility for the distribution of Class A
residuals.
This permit shall be effective from the date of issuance until February 28, 2012 and shall be
subject to the conditions and limitations as specified therein. Make note of this permit's expiration date
and the fact that a permit renewal application is due to the Division of Water Quality (Division) no later
than six months prior to that date, as the Division does not send reminders to apply for permit renewal.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the
right to request an adjudicatory hearing upon written request within thirty (30) days following receipt of
this permit. This request must be in the form of a written petition, conforming to Chapter 150E of North
Carolina General Statutes, and fled with the Office of Administrative Hearings, 6714 Mail Service
Center, Raleigh, NC 27699-6714. Unless such demands are made this permit shall be final and binding.
If you need additional information concerning this matter, please contact Matthew Fleahman at
[phone], or via e-mail at [e-mail].
Sincerely
• ? f
-Alan W. Klimek., P.E.
Aquifer Protection Section 1636 Mail service Center
Internet: www.ncwaterr uality.org Location: 2728 Capital Boulevard
An Equal Opportunity/Affirmative Action Employer— 50% Recycled/10% Post Consumer Paper
NorthCaroiina
Awgrally
Raleigh, NC 27699-1636 Telephone: (9I9) 733-3221
Raleigh, NC 27604 Fax 1: [phone]
Fax 2: (919) 7 t 5-6048
Customer Service: [phone]

cc: Forsyth County Health Department
Winston-Salem Regional Office - Aquifer Protection Section
Kris I Pennewell — Black & Veatch
Technical Assistance and Certification Unit
APS Central Files
LAU Files

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
RALEIGH
PERMIT FOR THE DISTRIBUTION OF CLASS A RESIDUALS
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as
amended, and other applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
Winston-Salem/Forsyth County Utilities Commission
Forsyth County
FOR THE
operation of a wastewater residuals facility for the distribution of Class A residuals consisting of the
distribution of 500 dry tons per year of residuals from the sources listed in Attachment A, with no
discharge of wastes to the surface waters, pursuant to the permit application received on January 23, 2007
and in conformity with the project plan, specifications, and other supporting data subsequently filed and
approved by the Department of Environment and Natural Resources and considered a part of this permit.
This permit shall be effective from the date of issuance until February 28, 2012, and shall be
subject to the following specified conditions and limitations:
PERFORMANCE STANDARDS
The distribution of Class A residuals program shall be effectively maintained and operated as
a non -discharge system to prevent the discharge of any wastes resulting from the operation of
this program.
2. This permit shall become voidable in the event of failure of the residuals program to
adequately protect the assigned water quality standards of the surface waters and
groundwaters.
3. The issuance of this permit shall not relieve the Permittee of the responsibility for damages to
surface or groundwaters resulting from the operation of this program.
4. In the event that the residuals program is not operated satisfactorily, including the creation of
nuisance conditions, the Permittee shall take any immediate corrective actions as may be
required by the Division of Water Quality (Division), and contact the Aquifer Protection
Section of the appropriate Division's regional office.

II.
5
C
II
Diversion or bypassing of the untreated residuals or leachate from the residual treatment
facilities is prohibited.
All leachate must be reused as a wetting agent for the processing of residuals or routed to the
head of the treatment plant.
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):
Parameter
Monthly Average
Concentration
(milligrams per kilo rain)
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
When residuals are sold or given away, one of the Class A pathogen requirements in 15A
NCAC 02T .1106(b) must be met. Additionally, an evaluation must be performed which
demonstrates the residuals ability to comply with this requirement. Upon request, a copy of
this evaluation must be submitted including all test results and calculations.
OPERATION AND MAINTENANCE REQUIREMENTS
The residuals treatment facilities shall be properly maintained and operated at all times.
2. A copy of this permit shall
sites when bulk residuals a
prevention and control plan
vehicles.
be maintained in all manned equipment at the land application
re being land applied during the life of this permit. A spill
shall be maintained in all residuals transport and application
Upon classification of the facility by the Water Pollution Control System Operators
Certification Commission (WPCSOCC), the Permittee shall employ a certified residuals
operator to be in responsible charge (ORC) of the residuals program. The operator must hold
a certificate of the type classification assigned to the residuals program by the WPCSOCC.
The Permittee must also employ a certified back-up operator of the appropriate type to
comply with the conditions of 15A NCAC 8G .0202.
4. The residuals and associated maximum volume specified in Attachernnt A of this permit are
hereby approved for distribution in accordance with this permit:
2

No residuals other than those specified in Attachment A of this permit may be distributed.
The Permittec shall request and obtain a permit amendment from the Division for each
additional residual source prior to acceptance of that residual.
6. Adequate provisions shall be taken to prevent wind erosion and surface runoff from
conveying pollutants from the residuals treatment area onto the adjacent property or into any
surface waters.
7. All residuals shall be adequately stored to prevent leachate runoff until treated. The finished
product may be placed on a concrete pad, placed under shelter or covered until such time as it
is distributed to the buyer. If an alternate storage site is to be used, approval must be obtained
from the Division.
8. A label shall be affixed to the bag or other container in which residuals that are sold or given
away for application to the land, or an information sheet shall be provided to the person who
receives the residuals sold or given away in another container for application to the land. The
label or information sheet shall contain the following information:
a. The name and address of the person who prepared the residuals that is sold or given
away in a bag or other container for application to the land.
b. A statement that application of the residuals to the land is prohibited except in
accordance with the instructions on the label or information sheet.
c. A statement which identifies that this material shall be prevented from entering any
public or private water supply source (including wells) and any stream, lake, or river.
e A statement that the residuals shall be applied at agronomic rates and recommended
rates for intended uses.
9. Bulk residuals shall not be applied to the land under the following conditions:
a. .If the residuals are likely to adversely affect a threatened or endangered species listed
under section 4 of the Endangered Species or its designated critical habitat;
b. If the application causes prolonged nuisance conditions;
c. If the land fails to assimilate the bulk residuals or the application causes the contravention
of surface water or groundwater standards;
d. if the land is flooded, frozen, or snow-covered or is otherwise in a condition such that
runoff of the residuals would occur;
e. Within the 100-year flood elevation unless the bulk residuals are injected or incorporated
within a 24-hour period following the residuals land application event;
f. During a precipitation event or within 24 hours following a rainfall event of 0.5 inches or
greater in a 24-hour period. Any emergency residuals land application measures shall
first be approved in writing by the Division;
g. If the slope for land is greater than 10 percent when bulk liquid residuals are surface
applied, and if the slope of the land is greater then 18 percent with bulk liquid residuals
are injected or incorporated;

h. If the pH is not maintained in the soil, residuals, and lime mixture, greater than 6.0, on all
land application sites onto which residuals are land applied. The agronomist shall
provide information on the pH best suited for the specified crop and the soil type;
i. If the land does not have an established vegetative cover in accordance with the crop
management plan outlined by the local Cooperative Extension Office, the Department of
Agriculture and Consumer Services, the Natural Resource Conservation Service, or other
agronomist unless the bulk residuals are incorporated within a 24-hour period following
the residuals land application event or injected;
j. If the vertical separation of the seasonal high water table and the depth of residuals
application is less than one foot;
k. If the vertical separation of the depth to bedrock and the depth of residuals application is
less than one foot;
1. Application exceeds agronomic rates.
10. For residuals treatment and storage facilities, the following minimum setbacks shall be
adhered to:
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 pTocct 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
11. When land applying bulk residuals to any land application site, the following setbacks shall
be maintained at all times:
Setback by type of Residual (feet)
Description of Setback
Liquid
Cake
Private or public water supp!y
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 the bottom of
the ditch intersects the SHWT)
25
0
Subsurface groundwater lowering system
Wells with exceptqn to monitoring wells
100
100
Bedrock outcrops
25
0
12. Specific bulk residuals land application area boundaries shall be clearly marked on each land
application site prior to and during a residuals land application event.
4�

13. Upon entering an agreement with landowners to apply bulk residuals to a land application
site, the Permittee shall require of the landowner or lessee/operator a statement detailing the
volume of nutrient sources (waste residuals, manufactured fertilizers, manures, or other
animal waste products) other than the residuals to be applied by the Permittee, that have been
applied to the land, and a copy of the most recent Nutrient Management Plan (NMP), if
available, for the fields within the agreement. For the purpose of this permit condition, a
Crop Management Plan (CMP), Waste Utilization Plan (WUP) or Certified Nutrient
Management Plan (CNMP) shall also be considered a Nutrient Management Plan.
The NMPs must be provided only for those operations where a NMP (also CMP, WIT, or
CNMP) is required by the US Department of Agriculture — National Resources Conservation
Service (NRCS) or other State Agencies. The Permittee shall rely on the provided
information to calculate appropriate reductions in allowable PAN loading rates. If the
calculation shows that the agronomic rates (including PAN) have already been met or
exceeded on a field, no additional residuals shall be land applied to that field.
14. Bulk residuals and other sources of PAN shall be land applied to all land application sites at
or below agronomic rates. Appropriate agronomic rates shall be calculated using expected
nitrogen requirements based on the Realistic Yield Expectations (RYE) field cover for each
approved land application site. Realistic Yield Expectations for crop types and specific
fields or soils types can be determined by using any of the following methods:
a. North Carolina Historical Data for specific crop and soil types as provided by North
Carolina State University Department of Soil Science Webpage at
hiip://www.soil.ncsu.edu/=i)/nenmwg/yields/
b. Site Specific Historical Data for crop types on specific fields or soil types by calculating
the mean of the best three yields of the last five consecutive crop harvests for each field.
c. If the RYE cannot be determined using methods 13(a) or (b) above, RYE can be
established from specially developed soil interpretation records for Nutrient Management
Planning, Farm Service Agency Records, university trials, or inference from crop
performance on soil with very similar physical and chemical features.
d. Realistic Yields Expectations and acceptable nitrogen application rates that use the above
methodology are required parts of many agricultural planning documents. The Permittee
may use the RYE and appropriate agronomic rates reported in any of the following
documents:
i. Crop management plan as outlined by the local Cooperative Extension Office,
the North Carolina Department of Agriculture and Consumer Services, the
Natural Resource Conservation Service, or other agronomist.
ii. Waste Utilization Plan as outlined by Senate Bill 1217 Interagency Group -
Guidance Document: Chapter 1. Guidance for the completion of the plan can be
found at hqp://www.enr.state.nc.us/DSWC/pages/guidance docs.htm].

iii. Certified Nutrient Management Plan as outlined by Natural Resources
Conservation Services (MRCS). These plans must meet the USDA-NRCS 590
Nutrient Management Standards, which are available at: f :tom //ftR
fc.sc.egov.usda.gov/LA/tecbnical/N590 03-2001.pdf.
e. For any crop type for which the RYE and appropriate nitrogen application rate cannot be
determined, the Permittee shall contact the Division to determine necessary action.
15. If the land application sites are to be overseeded (e.g., bermuda grass in the summer and rye
grass in the winter with BOTH crops to receive residuals), then the second crop shall receive
an application of PAN at a rate of no greater than 50 pounds per acre per year. This practice
shall be allowed as long as the second crop is to be harvested. If the second crop is to be
planted for erosion control only and is to be tilled into the soil, then no residuals shall be land
applied to these sites because the PAN will essentially be returned to the soil.
Prior to application of PAN to permitted sites at rates exceeding the agronomic rate, the
Permittee must submit and receive approval by the Division
16. Should any of the residuals generated by the residuals source -generating facilities listed in the
most recently -certified Attachment A of this permit contain a high salt content (i.e., high
sodium adsorption ratio (SAR) of five (5) or higher), the exchangeable sodium percentage
(ESP) or other method as approved by the Division, using the results from the annual soils
analysis as required by this permit, shall be monitored on all of the land application sites.
The local Cooperative Extension Office, the Department of Agriculture and Consumer
Services, the Natural Resource Conservation Service, a North Carolina -licensed Soil
Scientist, or other agronomist shall review the results and make recommendations regarding
soil amendments (e.g., gypsum, etc.) or other ameliorative mechanism for maintaining the
integrity of the site in terms of suitability for land application of residuals and maintaining
conditions conducive to crop growth. The Permittee shall implement such recommendations
accordingly and shall maintain written records of each monitoring event that includes details
of the sites covered and rate of soil amendment application.
III. MONITORING AND REPORTING REQUIREMENTS
Any monitoring (including groundwater, surface water, residuals, soil, or plant tissue
analyses) deemed necessary by the Division to insure protection of the environment will be
established and an acceptable sampling and reporting schedule shall be followed.
2. Residuals generated by each residuals source -generating facility listed in the most -recently -
certified Attachment A of this permit shall be analyzed to demonstrate that they are non-
hazardous under the Resource Conservation and Recovery Act (RCRA). A corrosivity,
ignitability, and reactivity analysis as well as a Toxicity Characteristics Leaching Procedure
(TCLP) analysis shall be conducted on residuals generated by each residuals source -
generating facility listed in the most recently -certified Attachment A of this permit. The
analyses shall be performed at the frequency specified in the most recently -certified
Attachment A of this permit, and the results shall be maintained on file by the Permittee for a
minimum of five years. If residuals generated by a particular residuals source -generating
facility are land applied at a frequency less than that which is specified in the most recently -
certified Attachment A of this permit, the analyses shall be required for each residuals land
C1

application event. Only residuals that are generated by the residuals source -generating
facilities that are identified as being exempt from this condition in the most recently -terrified
Attachment A of this permit shall not be required to comply with this monitoring
requirement.
The TCLP analysis shall include 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) Nitrobenzene (2.0)
1,2-Dichloroethane (0.5)
Pentachlorophenol (100.0)
1,1-Dichloroethylene (0.7)
Pyridine (5.0)
2,4-Dinitrotoluene (0.13)
Selenium (1.0)
Endrin (0.02)
Silver (5.0)
Hexachlorobenzene (0.13)
Tetrachloroethylene (0.7)
Heptachlor (and its hydroxide) (0.008)
Toxaphene (0.5)
Hexachloro-1,3-butadiene (0.5)
Trichloroethylene (0.5)
Hexachloroethane (3.0)
2,4,5-Trichlorophenol (400.0)
Lead (5.0)
2,4,6-Trichlorophenol (2.0)
Lindane (0.4)
2,4,5 TP (Silvex) (1.0)
Mercury (0.2)
Vinyl chloride (0.2)
Methoxychlor (10.0)
Methyl ethyl ketone (200.0)
After the residuals have been monitored annually for two years, the Permittee may submit a
request to the Division for a permit modification to reduce the frequency of the TCLP
analysis. In no case, however, shall the frequency of TCLP monitoring be less than once per
permit cycle when residuals are sold or given away.
An analysis shall be conducted on residuals generated by each residual source -generating
facility listed in the most recently certified Attachment A of this permit. The analysis shall be
performed at the frequency specified in the most recently certified Attachment A of this
permit, and the results shall be maintained on file by the Permittee for a minimum of five
years. The analysis shall include, but shall not necessarily be limited to, the following
parameters:
Aluminum
Ammonia -Nitrogen
Arsenic
Cadmium
Calcium
Copper
Lead
Magnesium pH*
Mammy PIant Available Nitrogen
(by calculation)
Molybdenum
Nickel
Nitrate -Nitrite Nitrogen
Phosphorus*
Potassium*
Selenium
Sodium*
% Total Solids
TKN
Zinc
After the residuals have been monitored as specified above for two years at the frequency
specified in the most recently -certified Attachment A of this permit, the Permittee may
submit a request to the Division for a permit modification to request a reduction of this
monitoring requirement. In no case, however, shall the frequency of monitoring be less than
once per year when residuals are sold or given away.

4. Residuals generated by each residuals source -generating facility listed in the most recently -
certified Attachment A of this permit shall be monitored for compliance with Condition I. 7.
The monitoring shall be performed at the frequency specified in the most recently -certified
Attachment A of this permit, and data to verify pathogen and vector attraction reduction of
the residuals shall be maintained on file by the Permittee for a minimum of five years. The
required data shall be specific to the stabilization process utilized, but also shall be sufficient
to demonstrate clear compliance with the Class A pathogen requirements and site restrictions
in 15A NCAC 02T .1106 (a) and (b), and one vector attraction reduction requirements in 15A
NCAC 02T .1107 (a) shall be met. In addition, the Environmental Protection Agency (EPA)
certification statements concerning compliance with pathogen reduction requirements, vector
attraction reduction requirements, and management practices shall be completed at the
frequency specified in the most recently -certified Attachment A of this permit by the proper
authority or authorities, if more than one is involved (i.e., either the person who prepares the
residuals, the person who derives the material, or the person who applies the residuals). Only
residuals that are generated by the residuals source -generating facilities that are identified as
being exempt from Condition I. 7. in the most recently -certified Attachment A of this permit
shall not be required to comply with this monitoring requirement.
Laboratory analyses as required by Condition III. 2., Condition III. 3., and Condition III. 4
shall be performed/gathered on the residuals prior to being packaged or distributed.
Furthermore, analytical determinations made pursuant to the monitoring and reporting
requirements of this permit shall be made by a laboratory certified by the Division for the
required parameter(s) under 15A NCAC . 1111
6. Proper records shall be maintained by the Permittee tracking all residual activities. These
records shall include, but are not necessarily limited to the following information:
a. source, volume and analysis of each residuals
b. name of residuals' recipient, volume received, and intended use
7. 'Three copies of all required monitoring and reporting requirements as specified in conditions
Ill 1, III 2, III 3, and III 4 shall be submitted annually on or before March 1 of the following
year to the following address:
NCDENR-DWQ
Information Processing Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
IV. NONCOMPLIANCE NOT TCATION:
The Permittee shall report by telephone to the Winston-Salem Regional Office, telephone
number [phone], as soon as possible, but in no case more than 24 hours or on the next
working day following the occurrence or first knowledge of the occurrence of any of the
following:
a. Any occurrence with the distribution program which results in the land application of
significant amounts of wastes which are abnormal in quantity or characteristic.
b. Any failure of the distribution program resulting in a release of material to receiving
waters.

c. Any time that self -monitoring information indicates that the facility has gone out of
compliance with the conditions and limitations of this permit or the parameters on which
the system was designed.
d. Any process unit failure, due to known or unknown reasons, that render the facility
incapable of adequate residual treatment.
e. Any spillage or discharge from a vehicle or piping system during transportation of
residuals.
Persons reporting such occurrences by telephone shall also file a written report in letter form
within five (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.
V. OPERATION AND MAINTENANCE PLAN
The Permittee shall maintain an Operation and Maintenance Plan (O&M Plan). The 0&M
Plan shall:
a. Describe the operations of the program and any associated facilities and equipment in
sufficient detail to show what operations are necessary for the program to function and
by whom the functions are to be conducted,
b. Describe anticipated maintenance of facility and equipment that are associated with the
Program,
c. Include provisions for safety measures including restrictions of access to the site and
equipment, as appropriate,
d. Include spill control provisions including:
i. Response to upsets and bypasses including control, containment, and remediation,
ii. Contact information for program personnel, emergency responders, and regulatory
agencies,
e. Detailed procedures for sampling and monitoring to ensure that the program stays in
compliance with this Section and any issued permit.
VI. GROUNDWATER REQUIREMENTS
No bulk residuals shall be land applied to sites when the vertical separation between the
depth of residuals land application and the water table is less than one foot.
E

C%
The Pernittee or his designee shall inspect the residuals storage, transport, and treatment
facilities to prevent malfunctions and deterioration, operator errors and discharges which may
cause or lead to the release of wastes to the environment, a threat to human health, or a
nuisance. The Permittee shall maintain an inspection log or summary including at least the
date and time of inspection, observations made, and any maintenance, repairs, or corrective
actions taken by the Permittee. This log of inspections shall be maintained by the Permittee
for a period of five years from the date of the inspection and shall be made available to the
Division or other permitting authority, upon request.
2. Any duly authorized officer, employee, or representative of the Division may, upon
presentation of credentials, enter and inspect any property, premises or place on or related to
the treatment site or facility at any reasonable time for the purpose of determining compliance
with this permit; may inspect or copy any records that must be kept under the terms and
conditions of this permit; and may obtain samples of groundwater, surface water, or leachate.
VM. GENERAL CONDITIONS
1. This permit shall become voidable unless the residuals land application events are carried out
in accordance with the conditions of this permit, the supporting materials, and in the manner
approved by the Division.
2. This permit shall be effective only with respect to the nature and volume of residuals
described in the application and other supporting data.
Failure to abide by the conditions and limitations contained in this permit may subject the
Permittee to an enforcement action by the Division in accordance with North Carolina
General Statutes § 143-215.6A through § 143-215.6C.
4. The annual administering and compliance fee shall be paid by the Permittee within 30 days
after being billed by the Division. Failure to pay the fee accordingly may cause the Division
to initiate action to revoke this permit, as specified by 15 NCAC 2T .0105 (e).
The issuance of this permit does not preclude the Permittee from complying with any and all
statutes, rules, regulations, or ordinances that may be imposed by other government agencies
(i.e., local, state, and federal) which have jurisdiction, including, but not limited to, applicable
river buffer rules in 15A NCAC 2B .0200, soil erosion and sedimentation control
requirements in 15A NCAC Chapter 4 and under the Division's General Permit NCG010000,
and any requirements pertaining to wetlands under 15A NCAC 2B .0200 and 15A NCAC 2B
.0500.
6. This permit may be modified, revoked, and/or reissued to incorporate any conditions,
limitations and monitoring requirements the Division deems necessary in order to protect the
environment and public health adequately.

7. The Perrnittee, at least six months prior to the expiration of this permit, shall request its
extension. Upon receipt of the request, the Division shall review the adequacy of the
facilities and residuals land application program described therein, and if warranted, shall
extend the permit for such period of time and under such conditions and Iimitations as it may
deem appropriate.
This permit shall not be automatically transferable. In the event that there is a desire for the
residuals land application program to change ownership or to change the name of the
Pennittee, a formal permit request shall be submitted to the Division documentation from the
parties involved and other supporting materials as may be appropriate. The approval of this
request shall be considered on its merits and may or may not be approved.
Permit issued this the 28`h day of March 2007.
NORTH C OLINA E O NTAL MANAGEMENT COMMISSION
-A' lan W. Klimek, P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number WQ0031314
11

Permit No. WQ0031314
March 28, 2007
ENGINEER'S CERTIFICATION
Partial Final
1, , as a duly registered Professional Engineer in the State
of North Carolina, having been authorized to observe (periodically, weekly, full time) the construction of
the project,
Project Name
Location and County
for the Permittee hereby state that, to the best of my abilities, due care and diligence was used in the
observation of the construction such that the construction was observed to be built within substantial
compliance and intent of this permit, the approved plans and specifications, and other supporting
materials.
Signature
Date
Registration No.
12

ATTACHMENT A - Approved Residual Sources
Permit Number: WQ0031314
Version: A
David K Saunders
Northwest Water Treatment Plant - Residual
Monitoring
Monitoring Frequency for
Permit Maximum Dry Frequency for
Condition III. 3. and
Owner Facility Name
County Number Is 503? Tons Per Year Condition III. 2.
Condition III.4.
Winston-Salem/Forsyth County Northwest Water
Utility Commission Treatment Plant
Forsyth NC0086762 non 503 500 4 X year
4 x year
Total 500