WQ0002708_Final Permit_20121107

IF
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Charles Wakiid, P.E.
Governor Director
November 7, 2012
J. Russell Allen — City Manager
City of Raleigh
P.O. Box 590
Raleigh, NC 27602
Dear Mr. Allen:
Dee Freeman
Secretary
Subject: Permit No. WQ0002708
Wrenn Road WWTF
Wastewater Irrigation System
Wake County
In accordance with your permit minor modification request received March 21, 2012, and
subsequent additional information received June 8, 2012 and August 23, 2012, we are forwarding
herewith Permit No. WQ0002708 dated November 7, 2012, to the City of Raleigh for the conversion and
operation of the subject wastewater treatment system to a water treatment residuals sedimentation and
irrigation facilities.
The modifications to the subject permit are as follow:
♦ Modifications to the existing facility including replacement of irrigation pumps and pump
station building, installation of variable frequency drives and new electrical components,
modifications of piping and flow measurement at the pump station, replacement of
disinfection system, repair of concrete inside the splitter box, installation of weir gates for
flow control -and measurement, installation of a lagoon baffle curtain, replacement and
.removal of existing gate valves near lagoons and around pump station, replacement and
removal of zone control valves, installation of a new wireless irrigation control system;
♦ Re-evaluation and re -calculation of annual irrigation loading rates and wetted areas;
♦ Please note that once the new waste stream has been monitored for one year at the
frequency specified in Attachment A (monthly), the Permittee may submit a permit
modification request to reduce the frequency of the effluent monitoring provided that
consistent characteristics of the waste stream have been established with no potential
impact on groundwater standards.
Please note that on August 5, 2009, Session Law 2009-406, entitled "An Act to Extend Certain
Government Approvals Affecting the Development of Real Property Within the State," was enacted by
the General Assembly and signed into law. The Act, known as the Permit Extension Act of 2009, extends
the expiration date of certain government approvals and permits. In addition, Session Law 2010-177
extended the Act by another year. Permit No. WQ0002708 falls within the scope of this Act and is
AQUIFER PROTECTION SECTION
1636 Mail Service Center, Raleigh, North Carolina 27699-1636
Location: 512 N. Salisbury 5f Raleigh, North Caroba 27604
Phone: [phone] FAX: 91 "07-6496
Internet: www.nmaterguatity.oig
An Equal Opportunity t Affirmative Ankn Employer
NDe
oithCaroiina
Natffiraffrf

Mr. Allen
November 7, 2012
Page 2 of 2
therefore being extended until April 30, 2015. A renewal application must still be submitted six months
in advance of the extended expiration date.
This permit shall be effective from the date of issuance until April 30, 2015, shall void Permit No.
WQ0002708 issued May 26, 2006, and shall be subject to the conditions and limitations as specified
therein. Please pay particular attention to the monitoring requirements listed in Attachments A, B
and C for they may differ from the previous permit issuance. Failure to establish an adequate system
for collecting and maintaining the required operational information shall result in future compliance
problems.
For your convenience, customized electronic copies of your facility's NDMR, and NDAR-1
reporting forms are available for download at: hnp://portal.ncdenr.org/web/wq/aps/lau/reportin .
If any parts, requirements or limitations contained in this permit are unacceptable, the Permittee
has the right to request an adjudicatory hearing upon written request within 30 days following receipt of
this permit. This request shall be in the form of a written petition, conforming to Chapter 150B of the
North Carolina General Statutes, and filed with the Office of Administrative Hearings at 6714 Mail
Service Center, Raleigh, NC 27699-6714. Unless such demands are made, this permit shall be final and
binding.
One set of approved plans and specifications is being forwarded to you. If you need additional
information concerning this permit, please contact Chonticha McDaniel at [phone] or
[e-mail].
Sincerely,
� /Ch;es��Wild, P.E.
CC" Wake County Health Department
Raleigh Regional Office, Aquifer Protection Section
Erika Bailey, PE — HDR Engineering, Inc. of the Carolinas (3733 National Dr., Raleigh, NC 27612-4845)
Permit File WQ0002708
Notebook File WQ0002708

NORTH CAROLINA
EN MONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
RALEIGH
WASTEWATER IRRIGATION SYSTEM PERMIT
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
City of Raleigh
Wake County
FOR THE
conversion and operation of the existing wastewater treatment facility to a 704,618 gallon per day (GPD)
water treatment residuals sedimentation and irrigation facility consisting of
a clay -lined gravity thickening lagoon; a liquid sodium hypochlorite disinfection system; an irrigation
pump station with four 1,574-gallon per minute pumps; a solid set irrigation system covering
approximately 268.69 acres of wetted area; and all associated piping, valves, instrumentation, controls,
and other appurtenances
to serve the sedimentation blowdown waste stream from the D.E. Benton Water Treatment Facility, with
no discharge of wastes to surface waters, pursuant to the application received March 21, 2012, and
subsequent additional information received by the Division of Water Quality, and in conformity with the
project plans, 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 April 30, 2015, shall void Permit No.
WQ0002708 issued May 26, 2006, and shall be subject to the following specified conditions and
limitations:
L SCHEDULES
1. In accordance with 15A NCAC 02T ,01 I6, upon completion of construction and prior to operation of
this permitted facility, a certification (attached) shall be submitted from a licensed North Carolina
Professional Engineer certifying that the permitted facility has been installed in accordance with this
permit, Division approved plans and specifications, and other supporting documentation, including
the location of all monitoring wells as applicable. If this project is to be completed in phases and
partially certified, the Permittee shall retain the responsibility to track further construction ap rp owed
under the same permit, and shall provide a final certificate of completion once the entire project has
been completed. Mail the Certification to the Division of Water Quality, Aquifer Protection Section,
1636 Mail Service Center, Raleigh, NC 27699-1636.
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2. The Raleigh Regional Office, telephgne number [phone], shall be notified at least 48 hours in
advance (excluding weekends and holidays) of operation of the installed facilities such that. an in -
place inspection can be made. Not ix cation Fto the Aquifer Protection Section's regional supervisor
shall be made from 8:00 a.m. until 5:00 p.m. on Monday through Friday, excluding State Holidays.
No later than six months prior to the expiration of this permit, the Permittee shall request renewal of
this permit on official Division forms. Upon receipt of the request, the Division will review the
adequacy of the facilities described therein, and if warranted, will renew the permit for such period of
time and under such conditions and limitations as it may deem appropriate. Please note Rule 15A
NCAC 02T .0105(d) requires an updated site map to be submitted with the permit renewal
application.
H. PERFORMANCE STANDARDS
The subject non -discharge facilities shall be effectively maintained and operated at all times so there
is no discharge to surface waters, nor any contravention of groundwater or surface water standards.
In the event the facilities fail to perform satisfactorily, including the creation of nuisance conditions
due to improper operation and maintenance, or failure of the irrigation areas to adequately assimilate
the effluent, the Permittee shall take immediate corrective actions including Division required actions,
such as the construction of additional or replacement wastewater treatment or irrigation facilities.
2. This permit shall not relieve the Permittee of their responsibility for damages to groundwater or
surface water resulting from the operation of this facility.
3. All wells constructed for purposes of groundwater monitoring shall be constructed in accordance with
15A NCAC 02C .0108 (Standards of Construction for Wells Other than Water Supply), and any other
jurisdictional laws and regulations pertaining to well construction.
4. Effluent quality shall not exceed the limitations specified in Attachment A.
5_ Application rates, whether hydraulic, nutrient or other pollutant, shall not exceed those specified in
Attachment B.
6. The compliance boundary for the disposal system shall be specified in accordance with 15A NCAC
02L .0107(b). This disposal system was individually permitted on or after December 30, 1983;
therefore, the compliance boundary is established at either 250 feet from the effluent disposal area, or
50 feet within the property boundary, whichever is closest to the effluent disposal area. An
exceedance of groundwater standards at or beyond the compliance boundary is subject to remediation
action according to 15A NCAC 02L .0106(d)(2) as well as enforcement actions in accordance with
North Carolina General Statute 143-215.6A through 143-215.6C.
7. In accordance with 15A NCAC 02L .0108, the review boundary is established midway between the
compliance boundary and the effluent disposal area. Any exceedance of groundwater standards at the
review boundary shall require action in accordance with 15A NCAC 02L .0106.
8. The Permittee shall apply for a permit modification to establish a new compliance boundary prior to
any sale or transfer of property affecting a compliance boundary.
9. In accordance with 15A NCAC 02L .0107(d), no wells, excluding Division approved monitoring
wells, shall be constructed within the compliance boundary except as provided for in 15A NCAC 02L
.0107(g).
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lid
10. Except as provided for in 15A NCAC 02L .0107(g), the Permittee shall ensure any landowner who is
not the Permittee and owns land within the compliance boundary shall 'execute and file with the
Wake County Register of Deeds an easement running with the land containing the following items:
a. A notice of the permit and number or other description as allowed in 15A NCAC 02L A 107(f)(1);
b. Prohibits construction and operation of water supply wells within the compliance boundary; and
c. Reserves the right of the Permittee or the State to enter the property within the compliance
boundary for purposes related to the permit.
The Director may terminate the easement when its purpose has been fulfilled or is no longer needed.
11. The facilities permitted herein shall be constructed according to the following setbacks:
a. The setbacks for irrigation sites permitted under 15A NCAC 02H .0200 shall be as follows (all
distances in feet):
i.
Any habitable residence or place of public assembly under separate ownership:
400
I
Any private or public water supply source:
100
iii.
Surface waters:
100
iv,
Any well with exception of monitoring wells:
100
v.
Any property line:
150
vi.
Public right of way:
50
b. The setbacks for storage and treatment units permitted under I SA NCAC 02H .0200 shall be as
follows (all distances in feet):
i. Any well with exception of monitoring wells:
ii. Any property line:
OPERATION AND MAINTENANCE REQUMEMENTS
100
50
1. The facilities shall be properly maintained and operated at all times. The facilities shall be effectively
maintained and operated as a non -discharge system to prevent the discharge of any wastewater
resulting from the operation of this facility. The Permittee shall maintain an Operation and
Maintenance Plan pursuant to 15A NCAC 02T .0507, which at a minimum shall include operational
functions, maintenance schedules, safety measures and a spill response plan.
2. Upon the Water Pollution Control System Operators Certification Commission's (WPCSOCC)
classification of the subject non -discharge facilities, in accordance with 15A NCAC 08G .0200 the
Permittee shall designate and employ a certified operator in responsible charge {ORC) and one or
more certified operator(s) as back-up ORC(s). The ORC or their back-up shall visit the facilities in
accordance with 15A NCAC 08G .0200, and shall comply with all other conditions specified in the
previously cited rules.
3. A suitable year round vegetative cover shall be maintained at all times, such that crop health is
optimized, allows for even distribution of effluent and allows inspection of the irrigation system.
4. Adequate measures shall be taken to prevent effluent ponding in or runoff from the irrigation sites
Iisted in Attachment B.
5. Irrigation shall not be performed during inclement weather or when the ground is in a condition that
will cause ponding or runoff.
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6. All irrigation equipment shall be tested and calibrated at least once per permit cycle. Calibration
records shall be maintained at the facility for a period of no less than five years, and shall be made
available to the Division upon request.
7. Only effluent from Wrenn Road WWTF shall be irrigated on the sites listed in Attachment B.
& No automobiles or machinery shall be allowed on the irrigation sites except during equipment
installation or while maintenance is being performed.
9. Public access to the irrigation sites and wastewater treatment facilities shall be prohibited.
10. The residuals generated from the wastewater treatment facilities shall be disposed or utilized in
accordance with 15A NCAC 02T .1100. The Permittee shall maintain a residual management plan
pursuant to 15A NCAC 02T .0508.
11. Diversion or bypassing of untreated or partially treated wastewater from the treatment facilities. is
prohibited.
12. Freeboard in the lagoon shall not be less than two feet at any time.
13. A gauge to monitor waste levels in the lagoon shall be provided. This gauge shall have readily visible
permanent markings, at inch or tenth of a foot increments, indicating the following elevations:
maximum liquid level at the top of the temporary liquid storage volume; minimums liquid level at the
bottom of the temporary liquid storage volume; and the lowest point on top of the dam.
14. A protective vegetative cover shall be established and maintained on all earthen embankments (i.e.,
outside toe of embankment to maximum allowable temporary storage elevation on the inside of the
embankment), berms, pipe runs, erosion control areas, and surface water diversions. Trees, shrubs,
and other woody vegetation shall not be allowed to grow on the earthen dikes or embankments.
Earthen embankment areas shall be kept mowed or otherwise controlled and accessible.
IV. MONITORING AND REPORTING REQUIREMENTS
I. Any Division required monitoring (including groundwater, plant tissue, soil and surface water
analyses) necessary to ensure groundwater and surface water protection shall be established, and an
acceptable sampling reporting schedule shall be followed.
2. Per 15A NCAC 02H .0800, a Division eertified laboratory shall conduct all laboratory analyses for
the required effluent, groundwater or surface water parameters.
3. Flow through the treatment facility shall be continuously monitored, and daily flow values shall be
reported on Form NDNIIt.
The Permittee shall install and maintain an appropriate flow measurement device to ensure the
accuracy and reliability of flow measurement consistent with accepted engineering and scientific
practices. Selected flow measurement devices shall be capable of measuring flows with a maximum
deviation of less than ten percent from true flow; accurately calibrated at a minimum of once per year;
and maintained to ensure the accuracy of measurements is consistent with the selected device's
accepted capability. The Permittee shall maintain records of flow measurement device calibration on
file for a period of at least five years. At a minimum, documentation shall include:
a. Date of flow measurement device calibration,
b. Name of person performing calibration, and
c. Percent from true flow.
4. The Permittee shall monitor the effluent from the subject facilities at the frequencies and locations for
the parameters specified in Attachment A.
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5. The Permittee shall maintain adequate records tracking the amount of effluent irrigated. At a
minimum, these records shall' include the following information for each irrigation site listed in
Attachment B:
a. Date of irrigation;
b. Volume of effluent irrigated;
c. Site irrigated;
d. Length of time site is irrigated;
e. Continuous weekly, monthly, and year-to-date hydraulic (inches/acre) loadings;
£ Continuous monthly and year-to-date loadings for any non -hydraulic parameter specifically
limited in Attachment B;
g. Weather conditions; and
h. Maintenance of cover crops.
6. Freeboard (i.e., waste level to the lowest embankment elevation) in the lagoon shall be measured to
the nearest inch or tenth of a foot, and recorded weekly. Weekly freeboard records shall be
maintained at the facility for a period of no less than five years, and shall be made available to the
Division upon request.
7. Three copies of all monitoring data (as specified in Conditions IV.3. and TVA.) on Form NDMR for
each PPI and three copies of all operation and disposal records (as specified in Conditions 1V.5. and
IV.6.) on Form NDAR-1 for every site in Attachment B shall be submitted on or before the last day of
the following month. If no activities occurred during the monitoring month, monitoring reports are
still required documenting the absence of the activity. All information shall be submitted to the
following address:
Division of Water Quality
Information Processing Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
8. A record shall be maintained of all residuals removed from this facility. This record shall be
maintained at the facility for a period of no less than five years, and shall be made available to the
Division upon request. At a minimum, this record shall include:
a. Name of the residuals hauler;
b. Non -Discharge permit number authorizing the residuals disposal, or a letter from a municipality
agreeing to accept the residuals;
c. Date the residuals were hauled; and
d. Volume of residuals removed_
9. A maintenance log shaII be maintained at this facility. This log shall be maintained at the facility for
a period of no less than five years, and shall be made available to the Division upon request. At a
minimum, this tog shall include:
a. Date of calibration of flow measurement device;
b. Visual observations of the plant and plant site; and
c. Record of preventative :maintenance (e.g., changing of equipment, adjustments, testing,
inspections and cleanings, etc.).
10. Monitoring wells shall be sampled at the frequencies and for the parameters specified in Attachment
C. All..mapping, well construction forms, well abandonment forms and monitoring., data shall refer to
the permit number and the well nomenclature as provided in Attachment C and Fi re 1.
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11. Two copies of the monitoring well sampling and analysis results shall be submitted on a Compliance
Monitoring Form (GW-59), along with attached copies of laboratory analyses, on or before the -last
working day of the month following the sampling month. The Compliance Monitoring Form (GW-
59) shall include this permit number, the appropriate well identification number, and one GW-59a
certification form shall be submitted with each set of sampling results. All information shall be
submitted to the following address:
Division of Water Quality
Information Processing Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
12. An annual representative soils analysis (i.e., Standard Soil Fertility Analysis) shall be conducted on
each irrigation site listed in Attachment B. These results shall be maintained at the facility for a
period of no less than five years, and shall be made available to the Division upon request. At a
minimum, the Standard Soil Fertility Analysis shall include the following parameters:
Acidity
Exchangeable Sodium Percentage
Phosphorus
Base Saturation (by calculation)
Magnesium
Potassium
Calcium
Manganese
Sodium
Cation Exchange Capacity
Percent Humic Matter
Zinc
Copper
pH
13. Noncompliance Notification:
The Permittee shall report by telephone to the Raleigh Regional Office, telephone number (919) 791-
4200, as soon as possible, but in no case more than 24 hours, or on the next working day following
the occurrence or fist knowledge of the occurrence of any of the following:
a. Any occurrence at the facility resulting in the treatment of significant amounts of wastes that is
abnormal in quantity or characteristic, including the known passage of a hazardous substance.
b. Any process unit failure (e.g., mechanical, electrical, etc.), due to known or unknown reasons,
rendering the facility incapable of adequate wastewater treatment.
c. Any facility failure resulting in a by-pass directly to receiving surface waters.
d. Any time self -monitoring indicates the facility has gone out of compliance with its permit
limitations_
e. Ponding in or runoff from the irrigation sites.
Any emergency requiring immediate reporting (e.g., discharges to surface waters, imminent failure of
a storage structure, etc.) outside normal business hours shall be reported to the Division's Emergency
Response personnel at telephone number [phone], [phone], or [phone].
Persons reporting such occurrences by telephone shall also file a written report in letter form within
five days following first knowledge of the occurrence. This report shall outline the actions taken or
proposed to be taken to ensure the problem does not recur.
V. INSPECTIONS
1. The Permittee shall provide adequate inspection and maintenance to ensure proper operation of the
wastewater treatment and irrigation facilities.
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2. The Permittee or their designee shall inspect the wastewater treatment and irrigation facilities to
prevent malfunctions, facility deterioration and operator errors resulting in discharges, which may
cause the release of wastes to the environment, a. threat to human health or a public nuisance: The
Permittee shall maintain an inspection log that includes, at a minimum, the date and time of
inspection, observations made, and any maintenance, repairs, or corrective actions taken. The
Permittee shall maintain this inspection log for a period of five years from the date of the inspection,
and this log shall be made available to the Division upon request.
3. Any duly authorized Division representative may, upon presentation of credentials, enter and inspect
any property, premises or place on or related to the wastewater treatment and irrigation facilities
permitted herein at any reasonable time for the purpose of determining compliance with this permit;
may inspect or copy any records required to be maintained under the terms and conditions of this
permit, and may collect groundwater, surface water or leachate samples.
VI. GENERAL CONDITIONS
1. Failure to comply with the conditions and limitations contained herein may subject the Permittee to
an enforcement action by the Division in accordance with North Carolina General Statutes 143-
215.6A to 143-215.6C.
2. This permit shall become voidable if the permitted facilities are not constructed in accordance with
the conditions of this permit, the Division approved plans and specifications, and other supporting
documentation.
This permit is effective only with respect to the nature and volume of wastes described in the permit
application, Division approved plans and specifications, and other supporting documentation. No
variances to applicable rules governing the construction or operation of the permitted facilities are
granted, unless specifically requested and approved in this permit pursuant to 15A NCAC 02T
.0105(n).
4. The issuance of.this permit does not exempt the Permittee from complying with any and all statutes,
rules, regulations, or ordinances, which may be imposed by other jurisdictional government agencies
(e.g., local, state, and federal). Of particular concern to the Division are applicable river buffer rules
in 15A NCAC 02B .0200; erosion and sedimentation control requirements in 15A NCAC Chapter 4
and under the Division's General Permit NCG010000; any requirements pertaining to wetlands under
15A NCAC 02B .0200 and 02H .0500; and documentation of compliance with Article 21 Part 6 of
Chapter 143 of the General Statutes.
5. In the event the permitted facilities change ownership or the Permittee changes their name, a formal
permit modification request shall be submitted to the Division. This request shall be made on official
Division forms, and shall include appropriate property ownership documentation and other supporting
documentation as necessary. The Permittee of record shall remain fully responsible for maintaining
and operating the facilities permitted herein until a permit is issued to the new owner.
6. The Permittee shall retain a set of Division approved plans and specifications for the life of the
facilities permitted herein.
7. The Periittee shall maintain this permit until all permitted facilities herein are properly closed or
permitted under another permit issued by the appropriate permitting authority pursuant to 15A NCAC
02T .01056).
8. This permit is subject to revocation or unilateral modification upon 60 days notice from the Division
Director, in whole or part for the requirements listed in 15A NCAC 02T .0110.
9_ Unless the Division Director grants a variance, expansion of the permitted facilities contained herein
shall not be granted if the Pennittee exemplifies any of the criteria in 1.5A NCAC 02T .0120(b).
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10. The Permittee shall pay the annual fee within 30 days after being billed by the Division. Failure to
pay the annual fee accordingly shall be cause for the- Division to revoke this permit pursuant to 15A
NCAC 02T .0105(e)(3). {
Permit issued this the 7`h day of November 2012
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
. art akild, Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number WQ0002708
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Permit No. WQ0002708
City of Raleigh
Wrenn Road WWTF
ENGINEERING CERTIFICATION
❑ Partial ❑ Final
Spray Irrigation System
November 7, 2012
Wake County
In accordance with 15A NCAC 02T .0116, I,
as a duly registered Professional Engineer in the State of North Carolina, having the Permittee's
authorization to ❑ periodically ❑ weekly ❑ fully observe the construction of the permitted facility,
hereby state to the best of my abilities that due care and diligence was used in the observation of the
construction, such that the facility was built within substantial compliance and intent of this permit, the
Division approved plans and specifications, and other supporting documentation.
❑ Any variation to this permit, the Division approved plans and specifications, and other supporting
documentation has been documented in the attached as -built drawings, and shall serve as the
Pennittee's minor modification request to amend the permit accordingly.
Provide a brief narrative description of any variations:
Professional Engineer's Name
Engineering Firm
Mailing Address
City State Zip
Telephone E-mail NC PE Seal, Signature & Date
THE COMPLETED ENGINEERING CERTIFICATION, INCLUDING ALL SUPPORTING
INFORMATION AND MATERIALS, SHALL BE SENT TO THE FOLLOWING ADDRESS;
NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
AQUIFER PROTECTION SECTION
LAND APPLICATION UNIT
By U.S. Postal Service: By Courier/$pecial Delivea:
1636 MAIL SERVICE CENTER 512 N. SALISBURY ST.
RALEIGH, NORTH CAROLINA 27699-1636 RALEIGH, NORTH CAROLINA 27604
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ATTACt VIENT A - LINHTATIONS AND MONITORING REQUIREMENTS
PPI 001- Effluent
Permit Number: WQ0002708 Version: 2.1
EFFLUENT CHARACTERISTICS
EFFLUENT LIMITS
MONITORING REQUIREMENTS
PCS Code
Parameter Description
Units of
Measure
Monthly Average
Monthly Geometric
Mean
Daily Minimum
Daily Maximum
Measurement
Frequency
Sample
Type
00310
BOD, 5-Day (20 Deg. C)
mg/1
Monthly
Grab
00916
Calcium, Total (as Ca)
mg/1
Monthly
Grab
00940
Chloride (as Cl)
mg/1
3 X year
Grab
31616
Coliform, Fecal MF, M-FC Broth,
44.5C
#/100mi
Monthly
Grab
50050
Flow, in conduit or duu treatment plant
gpd
704,618
Continuous
Recorder
00927
Magnesium, Total (as Mg)
mg/1
Monthly
Grab
00610
Nitrogen, Ammonia Total (as N)
mg/1
Monthly
Grab
00625
Nitrogen, Kjeldahl, Total (as N)
mgI]
Monthly
Grab
00620
Nitrogen, Nitrate Total (as N)
mg/l
Monthly
Grab
00400
pH
su
Monthly
Grab
00931
Sodium Adsorption Ratio
ratio
Monthly
Grab
00929
Sodium, Total (as Na)
mg/1
Monthly
Grab
70300
Solids, Total Dissolved- 180 Deg.0
mg/1
3 X year
Grab
00530
Solids, Total Suspended
mg/1
Monthly
Grab
1. 3 x Year monitoring shall be conducted in March, July & November.
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ATTACHMENT B - APPROVED LAND APPLICATION SITES AND LIMITATIONS
City of Raleigh - Wrenn Road WWTF
Permit Number: WQ0002708 Version: 2.1
.IRRIGATION AREA INFORMATION
APPLICATION LIMITATIONS
Field
Owner
County
Latitude
Longitude
Net
Acrea a
Dominant
Soil Series
Parameter
HourlyYearly
Rate
Max
Units
01A
City Of Raleigh
Wake
35038'09"
78035' 15"
19.60
Fuquay/Dothan
01284 - Non -Discharge Application Rate
0.11
26.0
inches
01B
City Of Raleigh
Wake
35038'11"
7803525"
16.18
Fuquay/Dothan
01284 - Non -Discharge Application Rate
0,13
26.9
inches
02A
City Of Raleigh
Wake
35037'56"
78035-08"
20,24
Appling/
Wedowee/Cecil
01284 - Non -Discharge Application Rate
0.15
36.7
inches
02B
City Of Raleigh
Wake
3503760"
7V35'16"
20.15
Appling/
Wedowee/CeciI
01284 - Non -Discharge Application Rate
0.13
28.9
inches
03A
City Of Raleigh
Wake
35'38'10"
78°34'49"
23,38
Appling/
Wedowee/Cecil
01284-Non-Discharge Application Rate
0.16
42.3
inches
03B
City Of Raleigh
Wake
35037'57"
78034'57"
16.71
Appling/
Wedowee/Cecil
01284 - Non -Discharge Application Rate
0.17
44.1
inches
04A
City Of Raleigh
Wake
35038'33"
7V3440"
21.87
Helena/Vance
01284 - Non -Discharge Application Rate
0.16
41.4
inches
04D
City Of Raleigh
Wake
35038'31"
78"34'46"
15.40
Helena/Vance
01284 - Non -Discharge Application Rate
0.18
40.9
inches
05A
City Of Raleigh
Wake
35038'55"
78034-41"
20.05
Fuquay/Dothan
01284 - Non -Discharge Application Rate
0.15
29.0
inches
05B
City Of Raleigh
Wake
35038'46"
78034-40"
20.47
Appling/
Wedowee/Cecil
01284 - Non -Discharge Application Rate
0.18
39,0
inches
06A
City Of Raleigh
Wake
35038'47"
78034'48"
19.18
Helena/Vance
01284 - Non -Discharge Application Rate
0.18
41.3
inches
06B
City Of Raleigh
Wake
35038'54"
78034'47"
18.25
HeIenaNance
01284 - Non -Discharge Application Rate
0,18
39.7
inches
07A
City Of Raleigh
Wake
35038'28"
78035'14"
18.69
Appling/
Wedowee/Cecil
01284 - Non -Discharge Application Rate
0.16
41.7
inches
07B
City Of Raleigh
Wake
35°38'39"
78°34'58"
18.51
Appling/
Wedowee/Cecil
01284 - Non -Discharge Application Rate
0.18
43.9
inches
Totals
268.68
WQ0002708 Version 2.1 Attachment B Page 1 of 2

THIS IMAGE ]BLANK
WQ0002708 Version-2.1 Attachment B Page 2 of2

ATTACHMENT C — GROUNDWATER MONITORING AND LIMITATIONS
Monitoring wells: MW-3, MW-8, ,and MW-9
Permit Number: WQ0002708 Version: 2.1
GROUNDWATER CHARACTERISTICS
GROUNDWATER STANDARDS
MONITORING REQUIREMENTS
PCS Code
Parameter Description
Daily Maximum
Frequency Measurement
Sample Type
Footnotes
82546
Water level, distance from measuring point
feet
3 X year
Calculated
1, 2, 3, 7
00400
pH
6.5-8.5
su
3 X year
Grab
1, 2, 7
31616
Coliform, Fecal MF, M-FC Broth,44.5C
#/100ml
3 X year
Grab
1,7
70300
Solids, Total Dissolved- 180 Deg.0
500
mg/l
3 X year
Grab
1,7
00680
Carbon, Tot Organic (TOC)
mg/l
3 X year
Grab
1, 6, 7
00940
Chloride (as Cl)
250
mg/l
3 X year
Grab
1,7
00610
Nitrogen, Ammonia Total (as N)
1.5
mg/1
3 X year
Grab
1,7
00620
Nitrogen, Nitrate Total (as N)
10
mg/l
3 X year
Grab
1,7
78732
Volatile Compounds, (GC/MS)
mg/l
Annually
Grab
1, 4, 5, 7
1. 3 x Year monitoring shall be conducted in March, July & November; Annual monitoring shall be conducted every November.
2. The measurement of water levels shall be made prior to purging the wells. The depth to water in each well shall be measured from the surveyed point on the top of the casing. The measurement
of pH shall be made after purging and prior to sampling for the remaining parameters.
3. The measuring points (top of well casing) of all monitoring wells shall be surveyed to provide the relative elevation of the measuring point for each monitoring well. The measuring points (top
of casing) of all monitoring wells shall be surveyed relative to a common datum.
4. Volatile Organic Compounds (VOC) - In November only, analyze by one of the following methods:
a. Standard Method 6230D, PQL at 0,5 µg/L or less
b. Standard Method 62101), PQL at 0.5 µg/L or less
c. EPA Method 8021, Low Concentration, PQL at 0.5 µg/L or less
d. EPA Method 8260, Low Concentration, PQL at 0.5 µg/L or less
e. Another method with prior approval by the Aquifer Protection Section Chief
Any method used must meet the following qualifications:
a. A laboratory must be DWQ certified to run any method used.
b. The method used must, at a minimum, include all the constituents listed in Table VIR of Standard Method 6230D.
C. The method used must provide a PQL of 0.5 µg/L or less that must be supported by Iaboratory proficiency studies as required by the DWQ Laboratory Certification Unit. Any constituents
detected above the MDL but below the PQL of 0.5 µg/L must be qualified (estimated) and reported.
5. If any volatile organic compounds (VOC) are detected as a result of monitoring as provided in Attachment C, then the Raleigh Regional Office Aquifer Protection Supervisor, telephone number
[phone], must be contacted immediately for further instructions regarding any additional follow-up analyses required.
6. If TOC concentrations greater than 10 mg/L are detected in any downgradient monitoring well, additional sampling and analysis must be conducted to identify the individual constituents
comprising this TOG concentration. If the TOC concentration as measured in the background monitor well exceeds 10 mg/L, this concentration will be taken to represent the naturally occurring
TOG concentration. Any exceedances of this naturally occurring TOC concentration in the downgradient wells shall be subject to the additional sampling and analysis as described above.
7. Monitoring wells shall be reported consistent with the nomenclature and location information provided in Figure I and this attachment.
WQ0002708 Version 2.1
Attachment C
Page 1 of 1

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