WQ0001730_Final Permit_20090522

A
JFAFA
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary
May 22, 2009
MR. H. DALE CRISP, P.E., PUBLIC UTILITIES DIRECTOR
CITY OF RALEIGH
POST OFFICE Box 590
RALEIGH, NORTH CAROLINA 27602
Subject: Permit No. WQ0001730
City of Raleigh
City of Raleigh Residuals
Land Application Program (D)
Land Application of Residual Solids (503)
Wake County
Dear Mr. Crisp:
In accordance with your permit modification application package received on August 19, 2008,
subsequent additional information received October 24, 2008, December 17, 2008, and February 17,
2008, and a public information meeting that was held at the Neuse River WWTP by the Division with
cooperation from the City of Raleigh on May 19, 2009, in which 125 local land owners were informed by
letter and no concerns were raised as a result of this information meeting or public comment period; we
are forwarding herewith a modified Permit No. WQ0001730, dated May 22, 2009, to the City of Raleigh
for the subject residuals land application program. This permit is being modified to approve the
construction and operation of reclaimed water irrigation system Phase III on fields 43, 44, 45, 46, 70, 519
and 520, Phase II on fields 14, 27, 28, 29, 32, 33, 34, 35, 36, 37 and 38, and operation of reclaimed water
irrigation system Phase I on fields 8, 9, 10, 30 and 31. The operation of the reclaimed water irrigation
system for all fields shall be conducted in accordance with an irrigation operation plan (dated July 24,
2008) submitted with the application package and approved by the Division.
This permit shall be effective from the date of issuance until March 31, 2012; shall void Permit
No. WQ0001730, issued on August 15, 2007; and shall be subject to the conditions and limitations as
specified therein. Of special interest to you may be the followings;
♦ Condition III. 29- reclaimed water irrigation shall be performed only in order to supplement
rainfall during dry periods of the year and shall be in accordance with the Attachment -
Approved Spray irrigation Operation plan and other supporting data subsequently filed and
approved by the Division.
♦ Condition IV.7(c)., regarding proper record requirements for reclaimed water irrigation and
change of report form for irrigation events (from NDAR-I to NDAR-3).
AQUIFER PROTECTION SECTION
1636 Mail Service Center, Raleigh, North Carolina 27699-1636
Locatim 2728 Capital Boulevard, Raleigh, North Carolina 27604 One
Phone: [phone] FAX 1: 919-71 H588; FAX 2: 919.715-60481 Customer Service: 1.877-623-6748 North Carolina
Internet: www,ncovatercivality.ora /�+//
An Equal Opportunity 1 r,fAmative Acton Employer Naturally

Mr. H. Dale Crisp, P.E.
May 22, 2009
Page 2
♦ Attachment B., regarding approved reclaimed water irrigation sites and irrigation efficiencies
determination and allocation.
♦ Upon renewal of the permit prior to its expiration, or any permit action resulting from a
request to modify the requirements for application of residuals, the permit will be modified
to incorporate all applicable requirements of 15A NACA 02T, including the use of Realistic
Yield Expectations (RYE) to determine recommended Plant Available Nitrogen (PAN)
loading rates for each field.
As always, remember to take the time to review this permit thoroughly, as some of the
conditions contained therein may have been added, changed, or deleted since the last issuance. Pay
particular attention to the monitoring requirements in this permit. Failure to establish an adequate system
for collecting, maintaining, and reporting the required operational information will result in future
compliance problems.
If any parts, requirements, and/or limitations contained in this permit are unacceptable, you have
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, North Carolina 27699-6714. Unless such demands are made, this permit shall be final
and binding.
One set of approved plans, specifications and spray irrigation operation plan is being forwarded
to you. If you need any additional information concerning this matter, please contact Chonticha McDaniel
by telephone at [phone], or via e-mail at [e-mail].
Sincerely,
©r Cnleen H. Sullins
cc: Duplin County Health Department
Sampson County Health Department
Wake County Health Department
Fayetteville Regional Office - Aquifer Protection Section
Raleigh Regional Office - Aquifer Protection Section
Wilmington Regional Office - Aquifer Protection Section
Tim Woody/City of Raleigh
Eric Williams/HDR Engineering, Inc. of the Carolinas (1780-2 Chandler's Lane, Sunset Beach, NC 28468)
Donald Safrit/McKim & Creed, PA (1730 Varsity Dr., Suite 500, Raleigh, NC 27606)
Donald Wells/Soil & Environmental Consultants, PA (11010 Raven Ridge Rd., Raleigh, NC 27614)
Ronald E. Sneed, PhD (3405 Malibu Dr., Raleigh, NC 27607-6506)
Technical Assistance and Certification Unit
APS Files
LAU Files

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
RALEIGH
LAND APPLICATION OF RESIDUAL SOLIDS (503) 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
continued operation of a residuals land application program for the City of Raleigh and consisting of the
land application of residuals generated by the residuals source -generating facilities Iisted in the most
recently -certified Attachment A, as well as the option to irrigate reclaimed water generated by the residuals
source -generating facilities listed in the most recently -certified Attachment A, to the land application sites
listed in the most recently -certified Attachment B with no discharge of wastes to surface waters,
continued operation of reclaimed water irrigation system Phase I on field 8, 9, 10, 30, and 31,
construction and operation of reclaimed water irrigation system Phase II consisting of new flow meter and
vault, new distribution loop, solid -set irrigation system, to serve Fields 14, 27, 28, 29, 32, 33, 34, 35, 36,
37 and 38, Phase III consisting of additional distribution loop and solid -set irrigation system, to serve
Fields 43, 44, 45, 46, 70, 519 and 520 with no discharge of wastes to the surface waters, pursuant to the
permit modification application package received on August 19, 2008, and subsequent additional
information received October 24, 2008, December 17, 2008, and February 17, 2008; 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.
Land application of residuals (i.e., both Class B and Class A EQ products) on any land application
site on or near the Neuse River Wastewater Treatment Plant site (i.e., the NRWWTP Farm), as
designated by Footnote c. in Attachment B of this permit, shall be strictly prohibited until such time
that a permit modification (i.e., Attachment B only) request has been approved by the Division.
Specifically, this permit approves the operation of this residuals land application program for the
purposes of continuing monitoring of groundwater and establishing an enforceable compliance
schedule related to the operation of the program as a whole only. Following receipt and review of
this package, the Division shall consider reissuance of a modified Attachment B under such
conditions and limitations as it may deem appropriate. Note that a modified Attachment B to allow
land application of residuals on these sites shall not be issued until documentation can be made to
the satisfaction of the Division that the land application activities will not cause or contribute to
violations of water and groundwater quality standards.
This permit shall be effective from the date of issuance until March 31, 2012; shall void Permit
No. WQ0001730, issued on August 15, 2007; and shall be subject to the following specified conditions
and limitations:

I. SCHEDULES [please review the entire permit for reporting, monitoring, and other on -going activities]
I. Upon completion of construction and prior to operation of the reclaimed water irrigation
system Phase II and III, a certification (see attached form) must be received from a
professional engineer certifying that the permitted facility has been installed in accordance
with this permit, the approved plans and specifications, and other supporting materials
including the location of all monitoring wells as applicable. If this project is to be completed
in phases and partially certified you shall retain the responsibility to track further construction
anuroved under the same permit, and shall provide a final certificate of completion once the
entire project has been completed. Mail the Certification to the Aquifer Protection Section,
Division of Water Quality, 1636 Mail Service Center, Raleigh, NC 27699-1636.
2. The Raleigh Regional Office, telephone number (919) 79I-4200, shall be notified at least
forty-eight (48) hours in advance (excluding weekends and holidays) of operation of the
installed irrigation system so that an in -place inspection can be made. Such notification to
the regional supervisor shall be made during the normal office hours from 8:00 a.m. until 5:00
p.m. on Monday through Friday, excluding State Holidays
H. PERFORMANCE STANDARDS
In order to address and resolve satisfactorily operational problems associated with the existing
residuals land application program, the Permittee shall perform the following activities no
later than the date indicated in this compliance schedule:
Date of Completion Activity to Be Completed
Ongoing ♦ Continuation of a groundwater sampling program for water
supply wells serving Material Recovery LLC (scale house) at
2820 Brown Field Road and the two wells in St. James Plantation
owned by James M. Gilbert, Inc. as well as any additional wells
identified by the Division or the Permittee as being impacted or
potentially impacted by the groundwater contamination at and
migrating from the Neuse River WWTP land application sites.
Groundwater sampling on each well shall be performed for the
parameters and at a frequency specified by the Division. The
results of the sampling and analysis shall be received by the
Raleigh Regional Office of the Division's Aquifer Protection
Section on or before the last working day of the month following
the sampling month. Deviation from the groundwater sampling
program shall not be allowed until a request is submitted to and
aDDroved in writing by the Division. .
Ongoing ♦ Provision of bottled potable water to or connection to the
municipal potable water distribution system of any additional
properties served by water supply wells identified by the Division
or the Permittee as being impacted or potentially impacted by the
groundwater contamination at and migrating from the Neuse
River WWTP land application sites. Properties identified as
being impacted by the migration of the groundwater
contamination subsequent to the issuance of this permit shall be
provided with alternative potable water within 24 hours of first
knowledge of said impact.
2. The residuals land application and reclaimed water irrigation programs shall be effectively
maintained and operated as a non -discharge system to prevent the discharge of any wastes
resulting from the operation of these programs.
2

3. This permit shall become voidable if the soils of the land application sites fail to assimilate the
residuals or reclaimed water adequately and may be rescinded unless the land application sites
are maintained and operated in a manner that will protect the assigned water quality standards
of the surface waters and groundwater.
4. The issuance of this permit shall not relieve the Permittee of the responsibility for damages to
surface waters or groundwater resulting from the operation of the residuals land application
and reclaimed water irrigation programs.
In the event that the residuals Iand application or reclaimed water irrigation program is not
operated satisfactorily, including the creation of nuisance conditions, the Permittee shall cease
land applying residuals or irrigating reclaimed water to the site, contact the Aquifer Protection
Section of the appropriate Division of Water Quality's (Division) regional office, and take any
immediate corrective actions as may be required by the Division.
6. The appropriate local governmental official (i.e., county manager, city manager, etc.) shall be
notified at least 24 hours prior to the initial residuals land application or reclaimed water
irrigation event to any new land application site. In addition, the appropriate county manager's
office shall be notified prior to the initial residuals land application event on any new site so
that the county manager will be aware that residuals land application activities have
commenced on the site.
7. The Aquifer Protection Section of the appropriate Division's regional office shall be notified
at least 24 hours prior to the initial residuals land application or reclaimed water irrigation
event on any new land application site. Such notification to the Regional Aquifer Protection
Section Supervisor shall be made during normal office hours (i.e., from 8:00 a.m. until 5:00
p.m.) between Monday and Friday, but excluding State Holidays. A list of the Division's
regional offices, their county coverage, and their contact information may be downloaded
from the web site at hq://h2o.enr.state.nc.us/lau/Vplications.html (Form WSCA).
8. No residuals other than those generated by the residuals source -generating facilities listed in
the most recently -certified Attachment A of this permit shall be approved for land application
in accordance with this permit.
9. Only reclaimed water generated from the Neuse River WWTF that meet the effluent limits on
Attachment A of permit number WQ0016222, shall be approved for reclaimed water irrigation
in accordance with this permit, including the approved spray irrigation operation plan attached
with this permit.
10. Only the land application sites listed in the most recently -certified Attachment B of this permit
shall be approved for residuals land application or reclaimed water irrigation.
11. This permit shall become voidable unless agreements between the Permittee and the
landowners and lessees or operators of any land application sites listed in the most recently -
certified Attachment B of this permit not owned by the Permittee are in full force and effect.
These agreements shall be in a form required by the Division and shall be considered expired
concurrent with the expiration date of the permit and shall be renewed at the same time the
permit is renewed.

12. The pollutant concentrations in any residuals that are land applied to any land application site
shall not exceed the following Ceiling Concentrations (i.e., dry weight basis):
Parameter
Ceiling Concentration
(milligrams per kilogram)
Arsenic
75
Cadmium
85
Copper
4,300
Lead
840
Mercury
57
Mol bdenum
75
Nickel
420
Selenium
100
Zinc
7,500
13. When residuals are land applied under the conditions of this permit, the Class A pathogen
requirements and site restrictions in 40 CFR Part 503.32(a) or the Class B pathogen
requirements and site restrictions in 40 CFR Part 503.32(b), and one of vector attraction
reduction requirements in 40 CFR Part 503.33 shall be met. Additionally, an evaluation shall
be performed that demonstrates the residuals' ability to comply with this requirement. Upon
request, a copy of this evaluation, including all test results and calculations, shall be
submitted. Only residuals that are generated by the residuals source -generating facilities that
are identified as being exempt from this condition in the most recently -certified Attachment A
shall not be required to comply with the specified pathogen reduction and vector attraction
reduction requirements.
W. OPERATION AND MAINTENANCE REQUIREMENTS
1. The facilities and land application sites shall be properly maintained and operated at all times,
No residuals or reclaimed water shall be stored at any land application site at any time, unless
written approval has first been requested and obtained from the Division.
3. A copy of this permit shall be maintained in all manned equipment at the land application sites
when residuals are being land applied or when reclaimed water is being irrigated during the
life of this permit. A spill prevention and control plan shall be maintained in all transport and
application vehicles.
4. Prior to land applying residuals or irrigating reclaimed water to any land application site that
has previously received or is intended to receive animal waste (e.g., poultry litter, etc.) or
other source of nutrients (e.g., fertilizer, etc.) in the future, the Permittee shall obtain
information pertaining to the volume and analysis of the applied waste/nutrients from the
landowner and/or lessee/operator of the site. The Permittee shall be responsible for verifying
the volume of residuals that may be land applied or reclaimed water that may be irrigated to
the site such that the plant available nitrogen (PAN) loading rate for the specified crop (i,e.,
see Condition 111. 13.) shall not be exceeded by all of the sources of PAN applied. Should the
maximum PAN loading rate be met or exceeded, then no additional residuals or reclaimed
water shall be land applied or irrigated to the site.
A suitable vegetative cover shall be maintained on land application sites onto which residuals
are land applied or reclaimed water is irrigated in accordance with the crop management plan
outlined by the local Cooperative Extension Office, the Department of Agriculture and
Consumer Services, the Natural Resources Conservation Service, or other agronomist and as
approved by the Division.
n

Adequate provisions shall be taken to prevent wind erosion and surface runoff from conveying
residuals and reclaimed water from the land application sites onto adjacent properties or into
any surface waters.
Adequate procedures shall be provided to prevent surface runoff from carrying any land
applied or stored residuals as well as any irrigated or stored reclaimed water into any surface
waters.
8. Residuals and reclaimed water shall not be land applied during inclement weather or until 24
hours following a rainfall event of 0.5-inch or greater in 24 hours. In addition, reclaimed
water irrigation shall not be performed during inclement weather or when the ground is in a
condition that will cause runoff. Any emergency residuals land application or reclaimed water
irrigation measures shall first be approved in writing by the Division.
9. Residuals shall not be land applied nor shall reclaimed water be irrigated to any land
application site that is flooded, frozen, or snow-covered.
10. Appropriate measures shall be taken to control public access to the land application sites
during active site use and for the 12-month period following the last residuals land application
event. Such controls may include the posting of signs indicating the activities being conducted
at each site.
11. Upon classification of the residuals land application program by the Water Pollution Control
System Operators Certification Commission (WPCSOCC), the Permittee shall designate a
certified land application/residuals operator to be in responsible charge (ORC) of the program.
The operator shall hold a certificate of the type classification assigned to the program by the
WPCSOCC. The Permittee shall also designate a certified back-up operator of the appropriate
type to comply with the conditions of 15A NCAC 8G .0202.
12. When land applying residuals to any land application site, the following buffer zones shall be
maintained at all times:
a. 400 feet from residences or places of public assembly under separate ownership for
surface application methods; however, the buffer zone requirement may be reduced to a
minimum of 100 feet upon written consent of the owner and approval from the Water
Quality Section of the appropriate Division's regional office in Attachment B of this
permit;
b. 200 feet from residences or places of public assembly under separate ownership for
subsurface application methods; however, the buffer zone requirement may be reduced to
a minimum of 100 feet upon written consent of the owner and approval from the Water
Quality Section of the appropriate Division's regional office in Attachment B of this
permit;
c. 250 feet from any water supply well located within the compliance boundary of any land
application site listed in the most recently -certified Attachment B of this permit for both
methods;
d. 100 feet from any public or private water supply sources (i.e., including water supply
wells located outside of the compliance boundary of any land application site listed in the
most recently -certified Attachment B of this permit), waters classified as SA or SB, and
any Class I or Class II impounded reservoir used as a source of drinking water for both
methods;
e. 100 feet from any streams classified as WS or B, any other streams, canals, marshes or
coastal waters and any other lakes or impoundments for surface application;

f. 50 feet from any streams classified as WS or B, any other streams, canals, marshes or
coastal waters and any other lakes or impoundments for subsurface application;
g. 50 feet from property lines for both surface and subsurface application methods;
h. 50 feet from public right of ways for both surface and subsurface application methods;
i. 10 feet from upslope interceptor drains and surface water diversions for both surface and
subsurface application methods;
j. 25 feet from downslope interceptor drains, surface water diversions, groundwater drainage
systems, and surface drainage ditches for both surface and subsurface application
methods; and
k. 25 feet from rock outcrops for both surface and subsurface application methods.
When irrigating reclaimed water to any land application site, the following buffer zones shall
be maintained at all times:
a. 100 feet from any surface waters classified as SA, including wetlands as delineated and
designated by the appropriate state or federal agency-
b. 25 feet from any surface waters not classified as SA, including wetlands as delineated and
designated by the appropriate state or federal agency;
c. 100 feet from any water supply wells;
d. 10 feet from any non -potable wells; and
e. 25 feet from any swimming pools.
Some of the buffers specified above may not have been included in previous permits for this
residuals land application program. However, any land application sites that are listed in the
most recently -certified Attachment B of this permit, but were approved with different buffers
shall be reflagged to comply with these buffers,
13. Maximum slope for land application of residuals shall be 10 percent for surface application
methods and 18 percent for subsurface application methods.
14. Specific residuals land application area boundaries shall be clearly marked on each land
application site prior to and during a residuals land application or reclaimed water irrigation
event.
15. The metal Ioading rates on any land application site shall not exceed the following
Cumulative Pollutant Loading Rates (CPLRs):
Parameter
CPLR
(kilograins per hectare)
CPLR
founds per acre)
Arsenic
41
36
Cadmium
39
34
Copper
1,500
1,338
Lead
300
267
Mercury
17
15
Molybdenum
n/a
n/a
Nickel
420
374
Selenium
100
89
Zinc
2,800
2,498
R

1 �5
16. An acceptable pH shall be maintained in the soil, residuals, and lime mixture, greater than 6.0,
on all Iand application sites onto which residuals are land applied to ensure optimum yield for
the crops specified in Condition 111. 13. The agronomist shall provide information on the pH
best suited for the specified crop and the soil type.
17. 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 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 Iand application sites. The local
Cooperative Extension Office, the Department of Agriculture and Consumer Services, the
Natural Resources 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 as well as 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.
18. For residuals land application sites, residuals and other sources of PAN shall be land applied
at agronomic rates in accordance with the crop management plan outlined by the local
Cooperative Extension Office, the North Carolina Department of Agriculture and Consumer
Services, the Natural Resources Conservation Service, or other agronomist. Under no
circumstances shall the following PAN loading rates land applied and irrigated to any site
exceed the following for the specified crops:
PAN
PAN
Crop
(pounds per
'Crop
(pounds per
acre per ear
acre per ear)
Alfalfa
200
Forest
75
(Hardwood or Softwood)
Bermuda Grass
220
Milo
100
(Hay or Pasture)
Blue Grass
120
Small Grain
100
(Wheat, Barley, or Oats
Corn
16Q
Sorghum or Sudex
(Grain)
(Pasture)180
Corn
200
Sorghum or Sudex
(Silage)
(Silage)2z0
Cotton
70
Soybeans
200
Timothy, Orchard, or
Fescue
250
Rye Grasses
200
The Permittee shall apply for and receive a modification of this permit before land applying
residuals or other sources of PAN on any land application site that is to be established in a
crop other than those listed above. A maximum PAN loading rate for the desired crop shall be
approved with the permit modification.
Residuals and other sources of PAN shall not be land applied at rates greater than agronomic
rates other than that described herein, unless authorized by the Division.

19. 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 or other
sources of PAN shall be land applied to these sites because the PAN will essentially be
returned to the soil.
20. Animals shall not be grazed on any land application site for 30 days after any residuals land
application. Sites that are to be used for grazing shall have fencing that will be used to
prevent access after each event.
21. Food crops, feed crops, and/or fiber crops that do not come in contact with the residuals shall
not be harvested for 30 days after any residuals land application.
22. Food crops with harvested parts that touch the residual/soil mixture and are totally above the
land surface (e.g., tobacco, melons, cucumbers, squash, etc.) shall not be harvested for 14
months after any residuals land application event.
23. Food crops with harvested parts below the surface of the land (i.e., root crops such as
potatoes, carrots, radishes, etc.) shall not be harvested for 20 months after any residuals land
application event when the residuals remain on the land surface for four months or longer
prior to incorporation into the soil.
24. Food crops with harvested parts below the surface of the land shall not be harvested for 38
months after any residuals land application event when the residuals remain on the land
surface for less than four months prior to incorporation into the soil.
25. Turf shall not be harvested for one year after any residuals land application event.
26. Surface -applied residuals shall be plowed or disced within 24 hours after land application on
land application sites with no cover crop established.
27. For land application sites that are prone to flooding or within the 100-year flood elevation,
residuals shall be land applied only during periods of dry weather. The residuals shall be
incorporated into the soil within 24 hours after land application.
28. For reclaimed water irrigation sites, reclaimed water 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) for each approved land application site.
29. Reclaimed water irrigation shall be performed only in order to supplement rainfall during dry
periods of the year and shall be in accordance with the Attachment -Approved Spray Irrigation
Operation Plan and other supporting data subsequently filed and approved by the
Division.
30. Crops onto which reclaimed water is or is planned to be irrigated during the crop growing
cycle shall not be used for direct human consumption.
8

IV. MONITORING AND REPORTING REQUIREMENTS
Any monitoring (i.e., including groundwater, surface water, residuals, reclaimed water, soil, or
plant tissue analyses) deemed necessary by the Division to ensure protection of the
environment shall 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
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 -certified
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)
1,4-Dichlorobenzene (7.5)
Nitrobenzene (2.0)
Barium (100.0)
1,2-Dichloroethane (0.5)
Pentachlorophenol (100,0)
Benzene (0.5)
1, 1 -Dichloroethylene (0.7)
Pyridine (5.0)
Cadmium (1.0)
2,4-Dinitrotoluene (0.13)
Selenium (1.0)
Carbon tetrachloride (0.5)
Endrin (0.02)
Silver (5.0)
Chlordane (0.03)
Hexachlorobenzene (0.13)
Tetrachloroethylene (0.7)
Chlorobenzene (100.0)
Heptachlor (and its hydroxide) (0.008)
Toxaphene (0.5)
Chloroform (6.0)
Hexachloro-1,3-butadiene (0.5)
Trichloroethylene (0.5)
Chromium (5.0)
Hexachloroethane (3.0)
2,4,5-Trichlorophenol (400.0)
m-Cresol (200.0)
Lead (5.0)
2,4,6-Trichlorophenol (2.0)
o-Cresol (200.0)
Lindane (0.4)
2,4,5-TP (Silvex) (1.0)
p-Cresol (200.0)
Mercury (0.2)
Vinyl chloride (0.2)
Cresol (200.0)
Methoxychlor (10.0)
2,4-D (10.0)
Methyl ethyl ketone (200.0)
After the residuals have been monitored as specified above
for two years at the frequency
specified in the most recently -certified Attachment A, 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 permit cycle.
An analysis shall be conducted on residuals generated by each residuals source -generating
facility Iisted 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. 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, an analysis shall be required for each residuals land application
event. The analysis shall include, but shall not necessarily be limited to, the following
parameters:

Aluminum
Magnesium
Phosphorus
Ammonia -Nitrogen
Mercury
Plant Available Nitrogen
(by calculation
Arsenic
Mo bdenum
Potassium
Cadmium
Nickel
Selenium
Calcium
Nitrate -Nitrite Nitrogen
Sodium
Copper
Percent Total Solids
Total K'eldahl Nitrogen
Lead
pH
Zinc
After the residuals generated by a particular residuals source -generating facility have been
monitored 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
reduce the frequency of this monitoring requirement. In no case, however, shall the frequency
of this monitoring be less than once per year when a residuals land application event of
residuals generated by the residuals source -generating facility occurs during that year.
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 11. 13.
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 reduction requirements in 40 CFR
Part 503.32(a) or the Class B pathogen reduction requirements and site restrictions in 40 CFR
Part 503.32(b) as well as one of vector attraction reduction requirements in 40 CFR Part
503.33. 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 11. 13. in the most recently -certified Attachment A of this permit shall not be
required to comply with this monitoring requirement.
An analysis shall be conducted on reclaimed water generated at the Neuse River WWTF. The
analysis shall be performed once a month during those months in which a reclaimed water
irrigation event takes place. Note that it shall be acceptable to the Division for the Permittee
to submit results of analyses for identical parameters monitored to comply with NPDES
Permit No. NC0029033. Results shall be reported on Form. NDMR-1.1, which shall only be
required for those months in which a reclaimed water irrigation event takes place. All 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:
Ammonia -Nitrogen
Mercury
Plant Available Nitrogen
(by calculation
Arsenic
Mo bdenum
Potassium
Cadmium
Nickel
Selenium
Calcium
Nitrate -Nitrite Nitrogen
Sodium
Copper
pH
Total K'eldahl Nitrogen
Lead
Phos horus
Zinc
Magnesium
10

5. Laboratory analyses as required by Condition IV. 2., Condition IV. 3., Condition IV. 4., and
Condition IV. 5. shall be performed/gathered on the residuals as they are to be land applied
and on the reclaimed water as it is to be irrigated. Furthermore, all 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 2H .0800
or 15A NCAC 2H .1100.
Proper records shall be maintained by the Permittee tracking, all residuals land application and
reclaimed water irrigation events. These records shall include, but are not necessarily limited
to, the following information:
a. For residuals land application and/or reclaimed water irrigation events on land application
sites listed in the most -recently certified Attachment B of this permit:
i. Source of residuals;
ii. Date of land application;
iii. Location of land application (i.e., site, field, or zone number);
iv. Method of land application;
v. Weather conditions (i.e., sunny, cloudy, raining, etc.);
vi. Soil conditions (i.e., dry, wet, frozen, etc.);
vii. Type of crop or crops to be grown on field; and
viii.Volume of residuals land applied in gallons per acre, dry tons per acre, or kilograms
per hectare;
ix. Volume of animal waste or other nutrient source land applied in gallons per acre, dry
ton per acre, or kilograms per hectare (if applicable);
x. Volume of each soil amendment (i.e., lime, gypsum, potash, etc.) land applied in
gallons per acre, dry ton per acre, or kilograms per hectare (if applicable);
xi. Annual and cumulative totals of dry tons per acre of residuals as well as animal waste
and other sources of nutrients (i.e., if applicable) land applied or irrigated to each
site/field/zone; and
xii. Annual and cumulative pounds per acre of each heavy metal (i.e., shall include, but
shall not be limited to, arsenic, copper, lead, mercury, molybdenum, nickel, selenium,
and zinc), annual pounds per acre of PAN, and annual pounds per acre of phosphorus
land applied or irrigated to each site/field/zone.
b. For residuals produced by all residuals source -generating facilities listed in the most
recently -certified Attachment A of this permit:
i. Monthly and annual totals of dry tons of residuals requiring utilization/disposal;
ii. Monthly and annual totals of dry tons of residuals land applied as a Class B product,
with an accounting of residuals land applied on all land application sites listed in the
most recently -certified Attachment B of this permit and residuals land applied under
the conditions of other permits as approved by the Division;
iii. Monthly and annual totals of dry tons of residuals produced and distributed as a Class
A EQ product as approved by the Division in the most recent issuance of Permit No.
WQ0011583, with an accounting of the volumes of residuals, amendments added, and
total product produced/distributed;
iv. Monthly and annual totals of dry tons of residuals hauled for production and
distribution as a Class A EQ product under the conditions of other permits as
approved by the Division or the Division of Waste Management; and
v. Monthly and annual totals of dry tons of residuals disposed of in a landfill.
11

For reclaimed water irrigation events only (i.e., provide a completed Form NDAR-3 for
each month of the calendar year, regardless of whether or not an event has occurred during
a particular month):
i. Source of reclaimed water;
ii_ Date of irrigation;
iii. Location of irrigation (i.e., site, field, or zone number);
iv. Weather conditions (i.e., sunny, cloudy, raining, etc.);
v. Maintenance of cover crops;
vi. Length of time site/field/zone is irrigated;
vii. Volume of reclaimed water irrigated;
viii.Continuous weekly, monthly, and year-to-date hydraulic (i,e. in inches per acre)
loadings for each site/ field/zone; and
8. A representative annual soils analysis (i.e., Standard Soil Fertility Analysis) shall be
conducted on each land application site on which a residuals land application or reclaimed
water irrigation event in the respective calendar year has occurred or is to occur, and the
results shall be maintained on file by the Permittee for a minimum of five years. The Standard
Soil Fertility Analysis shall include, but is not necessarily limited to, the following
parameters:
Acidity
Exchangeable Sodium. Percentage
Phosphorus
(by calculation
Calcium
Magnesium
Potassium
Cation Exchange Capacity
Manganese
Sodium
Copper
Percent Humic Matter
Zinc
Base Saturation
H
b calculation)p
The annual soils analysis as well as an analysis for the following pollutants shall be conducted
once prior to permit renewal on a sample of soil from each land application site on which
residuals have been land applied or reclaimed water has been irrigated during the permit cycle:
Arsenic Mercury Nickel
Cadmium Molybdenum Selenium
Lead
As reported in a May 4, 2000 soil test report prepared by the North Carolina Department of
Agriculture and Consumer Services' Agronomic Division, the Standard Soil Fertility Analysis
performed on soil samples obtained from several sites demonstrated elevated copper and zinc
content. The Permittee shall monitor the concentrations of copper and zinc within the soil
matrix of the sites closely throughout this permit cycle. Once the copper and/or zinc indices of
the soil from any site reaches a value of 3,000 (i.e., equivalent to 60 parts per million for
copper and 120 parts per million for zinc), the site shall be evaluated by a certified agronomist
or a North Carolina -licensed professional soil scientist with respect to maintaining the
integrity of soil fertility and crop health and as to the appropriateness of continuing to land
apply residuals or reclaimed water. If the certified agronomist's/North Carolina -licensed
professional soil scientist's evaluation determines that the land application of additional
residuals or reclaimed water will adversely affect soil fertility and crop health, the Permittee
shall no longer apply residuals or reclaimed water to that site. The Permittee shall be
responsible for notifying the Division at permit renewal time if sites have to be eliminated
from this program for the above -described reason, so that the appropriate permit modifications
may be made at that time.
12

Because a variance has been granted from the setback/buffer required by Condition III. 12. j.
for Site Nos 04-01 through 04-10, surface water monitoring shall be conducted throughout the
upstream and downstream monitoring network as identified on the approved buffer map for
these sites that is included as part of the most -recently approved Attachment B of this permit.
Results of the surface water monitoring program shall be reported on Form NDMR-1 and
submitted with the annual report. The monitoring event shall consist of a single grab sample
at each monitoring point that is analyzed for the following parameters and at the following
frequency:
Arsenic
Mercury_Total
Phosphorus
Cadmium
Molybdenum
Selenium
Copper
Nickel
Total Organic Carbon
Fecal Coliform
Nitrate -Nitrogen
Zinc
Lead
PH
a. Once 30 to 45 calendar days prior to initiating each residuals land application event that is
to occur on any of these sites.
b. Once five to 15 calendar days following the end of each residuals land application event
that occurs on any of these sites.
c. Once 30 to 45 calendar days following the end of each residuals land application event
that occurs on any of these sites.
Should surface water not be present in a particular monitoring point during the above -
specified monitoring schedule, a Form NDMR-1 shall still be submitted with the annual
report; however, it shall be reported that insufficient water to tape the grab sample was present
at that point.
After the surface water monitoring program has been conducted for an entire permit cycle
(i.e., five years), the Permittee may submit a request to the Division for a permit modification
to remove this monitoring requirement.
10. Three copies of all required monitoring and reporting requirements as specified in Condition
IV. 1., Condition W. 2., Condition IV. 3., Condition IV. 4., Condition fV. 5., Condition IV. 6.,
Condition W. 7., Condition IV. 8., and Condition IV. 9. shall be submitted annually on or
before March 1st of the year following the residuals land application or reclaimed water
irrigation event to the following address:
NCDENR-DWQ
Information Processing Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
11. Noncompliance Notification:
The Permittee shall report by telephone to the Aquifer Protection Section of the Division's
Raleigh Regional Office at 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 residuals land application program that results in the land
application/irrigation of significant amounts of residuals/reclaimed water that are
abnormal in quantity or characteristic.
b. Any failure of the residuals land application program resulting in a release of material to
receiving waters.
Any time that self -monitoring information indicates that the residuals land application
program has gone out of compliance with the conditions and limitations of this permit or
the parameters on which the program system was designed.
13

d. Any process unit failure, due to known or unknown reasons, that render the residuals land
application program incapable of adequate residuals or reclaimed water treatment.
e. Any spillage or discharge from a vehicle or piping system transporting residuals or
reclaimed water to the land application site.
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 that the problem does not recur.
V. GROUNDWATER REQUIREMENTS
Sampling Requirements:
a. Groundwater monitoring wells MW-13, MW-20, MW-22, MW41, MW-42, MW-44,
MW45, MW-46, MW-47, MW-48, MW49, MW-50, MW-51, MW-52, MW-53, and
MW-54 shall be sampled on this same frequency of every March, July, and November.
For each sampling event, samples from each well shall be analyzed for the parameters
listed below:
Arsenic
Mercury
Total Ammonia Nitrogen
Cadmium
Molybdenum
Total Dissolved Solids
Chlorides
Nickel
Total Organic Carbon
Copper
Nitrate -Nitrogen
Water Level
Fecal Coliform
pH
Zinc
Lead
Selenium
Volatile Organic Compounds
in November only)
Water levels in the groundwater monitoring wells shall 6e measured prior to sampling the
groundwater for the remaining parameters. The depth to water in each well shall be
measured from the surveyed point on the top of the casing, which shall be surveyed
relative to a common datum.
b. Volatile organic compounds (VOCs) shall be analyzed using one of the following
methods:
i. Standard Method 6230D (PQL at 0.5 µg/L or less),
ii. Standard Method 6210 (PQL at 0.5 µg/L or less),
iii. EPA Method 8021 (Low Concentration, PQL at 0.5 µg/L or less),
iv. EPA Method 8260 (Low Concentration, PQL at 0.5 µg/L or less), or
v. Another method with prior approval by the Groundwater Section Chief.
Any of the referenced methods used for VOCs shall, at a minimum, include all of the
constituents listed in Table VHI of Standard Methods 6230D. The method used shall
provided a PQL at 0.5 µg/L or less, which shall be supported by laboratory proficiency
studies as required by the Division's Laboratory Certification Unit. Any constituents
detected above the MDL, but below the PQL at 0.5 µg/L, shall be qualified (i.e.,
estimated) and reported.
c. If total organic carbon (TOC) concentrations greater than 10 milligrams per liter are detected in
any downgradient groundwater monitoring well, additional sampling and analysis shall be
conducted to identify the individual constituents comprising this TOC concentration. If the TOC
concentration as measured in the background well exceeds 10 milligrams per liter, this
concentration shall be taken to represent the naturally -occurring TOC concentration. Any
exceedances of this naturally -occurring TOC concentration in downgradient wells shall be
subject to the additional sampling and analysis as described in this permit.
14

d. Any laboratory selected to analyze parameters shall be Division -certified for those
parameters required.
2. Reporting/Documentation Requirements:
a. For the initial sampling of each converted groundwater monitoring well (i.e., MW-51,
MW-52, MW-53, and MW-54), the Penmittee shall submit a copy of the "Well
Construction Record" (i.e., GW-1 Form) with the "Compliance Monitoring Form" (i.e.,
GW-59 Form) for that well. GW-59 Forms for groundwater monitoring wells that do not
include a copy of the corresponding GW-1 Form shall be returned to the Permittee without
being processed. Failure to submit these forms as required by this permit may result in the
initiation of enforcement activities pursuant to North Carolina General Statute § 143-
215.6A.
b. The results of the sampling and analysis shall be received on the most -recent version of
"Groundwater Quality Monitoring: Compliance Report Form" (i.e., GW-59 Form) with
copies of the laboratory analyses attached by the Division on or before the last working
day of the month following the sampling month.
c. All reports, maps, and other documents required in the "Groundwater Requirements"
section of this permit shall be mailed to the following address:
NCDENR-DWQ
Information Processing Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
Updated blank forms may be downloaded from the web site http://gw.ehnr.state.ne.us/ or
requested from the address listed above.
Land Application Site Requirements:
a. Each land application site identified with a GW-A in the most recently -certified
Attachment B of this permit is dominated by soils with a mean seasonal high water table
greater than three feet below the land surface. Residuals land application and reclaimed
water irrigation events may occur on these sites throughout the year.
b. Each land application site identified with a GW-B in the most recently -certified
Attachment B of this permit is dominated by soils with a mean seasonal high water table
between one and three feet below the land surface. Residual land application and
reclaimed water irrigation events on these sites shall be prohibited from December
through March, inclusive. No residuals shall be land applied or reclaimed water shall be
irrigated to these sites when the vertical separation between the depth of residuals land
application and the water table is less than three feet.
4. Applicable Boundary Requirements:
a. The Compliance Boundary for residuals land application program is specified by
regulations in 15A NCAC 2L (i.e., "Groundwater Classifications and Standards"). The
Compliance Boundary for each land application site is established at either 250 feet from
the residuals land application area or 50 feet within the property boundary, whichever is
closest to the residuals land application area. An exceedance of Groundwater Quality
Standards at or beyond the Compliance Boundary is subject to immediate remediation
action according to 15A NCAC 2L .01 06 (d)(2).
15

in
b. The Review Boundary for residuals land application program shall be established around
each land application site midway between the Compliance Boundary and the perimeter
of the residuals land application area. Any exceedance of Groundwater Quality Standards
at the Review Boundary shall require action in accordance with 15A NCAC 2L .0106
(d)(2).
The Compliance and Review Boundaries for the reclaimed utilization areas are
established at the utilization area boundaries. Any exceedance of standards at the
Compliance or Review Boundary shall require action in accordance with 15A NCAC 02L
.0106.
Additional Rectuirements:
a. Any additional groundwater quality monitoring, as deemed necessary by the Division,
shall be provided.
] . Adequate inspection, maintenance, and cleaning shall be provided by the Permittee to ensure
proper operation of the residuals storage, transport, and application facilities and reclaimed
water irrigation facilities.
2. Prior to each residuals land application or reclaimed water irrigation event, the Permittee or his
designee shall inspect the residuals storage, transport, and application facilities and/or
reclaimed water irrigation facilities as appropriate to prevent malfunctions and deterioration,
operator errors, and discharges that 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.
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 land application sites or facilities 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.
VIL GENERAL CONDITIONS
This permit shall become voidable unless the residuals land application and reclaimed water
irrigation 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 and
reclaimed water described in the application and other supporting data.
3. 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.
16

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 2H .0205 (c)(4).
5. 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 .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 Permittee, 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 limitations as it may deem
appropriate.
S. 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
Permittee, 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 22d day of May, 2009.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
r
Coleen f Sullins, Director
Divisi& of Water Quality
By Authority of the Environmental Management Commission
Permit Number WQ0001730
17

Permit No. WQ0001730
March 20, 2009
ENGINEER'S CERTIFICATION
Partial Final
I, _ _ , 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.
18

ATTACHMENT A - Approved Residual Sources
Permit Number: WQ0001730 Version: 2.2
City of Raleigh
City of Raleigh Residuals Land Application Proqram (D)
Monitoring
Monitoring
Frequency for
Approved
Permit
Issued
Is
Maximum Dry
Frequency for
Condition IV. 3. and
Mineralization
Owner
Facility Name
County
Number
By
503?
Tons Per Year
Condition IV. 2.
Condition IV. 4.
Rate
City of Raleigh
INeuse River WWTP
Wake
NC0029033
I DWQ
503
70003
Annually
Every 60 days
.30
Total
I
1
7,000.
a This maximum volume of residuals permitted for land application under the conditions of this permit includes an approximate 15-dry ton per year
emergency -only contribution from Ajinomoto USA, Inc. (Industrial User Permit No. AJINCFR439). Ajinomoto USA, Inc_ generates residuals from
the treatment of industrial wastewater only (i.e., no domestic wastewater content). Ajinomoto USA Inc.'s residuals shall be introduced to the
residuals holding tanks at this facility prior to land application under the conditions of this permit.
Permit W00001730 1 of 1 Certification Date: May 22, 2009

ATTACHMENT B -Approved land Application Sites
Permit Number: WQ0001730 Version: 2.1
City of Raleigh
City of Raleigh Residuals Land Application Program (D)
FleldlZone Id
Owner
Lessee
County
Latitude
Longitude
Net Acreage
Dominant soil
Series
Applicable
Restriction in
Condition IV. 4.
Footnotes
01-01
Hobbs, Delmas
Duplin
35'04'48"
78°06'42"
42,50
Wagram
GW-A
01-02
Hobbs, Delmas
Duplin
35°06'42"
78°07'55"
35.50
Norfolk
GW-A
a
01-03
Hobbs, Delmas
Duplin
35°07'59"
78°07'46"
40.60
Norfolk
GW-A
02-01
Bradshaw, Clyde
Bass, Trent
Duplin
35°06'29"
78°07'46"
76.40
Norfolk
GW-A
04-01
J. Isaac Gurley Farms, Inc.
Duplin
35°05'36"
78'10'04"
75.50
Rains
GW-B
b
04-02
J_ Isaac Gurley Farms, Inc.
Duplin
35'05'02"
78°09'59"
103.80
Rains
GW-B
b
04-03
J. Isaac Gurley Farms, Inc.
Duplin
35'05'35"
78°09'40"
46.50
Goldsboro
GW--B
b
04-04
J. Isaac Gurley Farms, Inc.
Duplin
35°05'21"
78°09'27"
85.60
Lenoir
GW-B
b
04-05
J. Isaac Gurley Farms, Inc.
Duplin
35°05'07"
78°09'45"
22.80
Lynchburg
GW-B
b
04-06
J. Isaac Gurley Farms, Inc.
Duplin
35°05'07"
78`09'18"
38.50
Goldsboro
GW-B
b
04-07
J. Isaac Gurley Farms, Inc.
Duplin
35.0605"
78°09'01"
19.10
Coxville
GW-B
b
04-08
J. Isaac Gurley Farms, Inc.
Duplin
35°05'16"
78'08'58"
29.90
Foreston
GW-B
b
04-09
J. Isaac Gurley Farms, Inc.
Duplin
35°05'30"
78°09'04"
52,20
Rains
GW-B
b
04-10
J. Isaac Gurley Farms, Inc.
Duplin
35°05'42"
78°09'20"
25.40
Coxville
GW-B
b
04-11
J. Isaac Gurley Farms, Inc.
Duplin
35°04'49"
78`08'28"
22.10
Coxville
GW-B
04-12
J. Isaac Gurley Farms, Inc.
Duplin
35°05'33"
78°08'27"
47.70
Coxville
GW-B
Iota! for County
Duplin
764.10
HG-1
Gay, Edith J
Franklin
35°54'40"
78°18`04"
24.04
Varina
GW-B
HG-2
Gay, Hillard J
Franklin
35°54'44"
78'18'04"
5.22
Varina
GW-B
HG-3
Gay, Edith J
Franklin
35°54'39"
78'18-15"
6,28
Wedowee
GW-B
HG-4
Gay, Edith J
Franklin
35'54'35"
78°18'07"
1.34
Varina
GW-B
HG-5
Gay, Edith J
Franklin
35'54'33"
78°18'10"
4.38
Varina
GW-A
HG-6
Gay, Edith J
Franklin
35°54'32"
78'18'23"
4.57
Wedowee
GW-B
Total for County
Franklin
45.83
JEJ-01
White, Syndor M
Johnston
35°41'45"
78°26'49"
10.96
Wedowee
GW-A
JEJ-02
White, Syndor M
Johnston
35°41'33"
7B°26'44"
10.16
Vance
GW-B
JEJ-03
White, Syndor M
Johnston
35°41'31"
78'27'03"
27.37
Vance
GW-B
JEJ-04
White, Syndor M
Johnston
35°41'38"
78°27'22"
24.61
Vance
GW-B
Total for County
Johnston
73.10
01-07
Hobbs, Delmas
Sampson
35°06'21"
78°12'49"
29.90
Norfolk
GW-A
01-08A
Hobbs, Delmas
Sampson
35°06'27"
78'13'03"
19.10
Goldsboro
GW-A
01-08B
Hobbs, Delmas
Sampson
35"06'30"
78'13'00"
6.10
Lynchburg
GW-B
01-09
Hobbs, Delmas
Sampson
35"05'05"
78'13'28"
52.50
Norfolk
GW-A
01-10
Hobbs, Kevin
Sampson
35°04'41"
78`11-32"
17.70
Norfolk
GW-A
01-11
Hobbs, Delmas
Sampson
35°04'02"
78'12-34"
12.00
Wagram
GW A
01-12
Hobbs, Delmas
Sampson
35°03'49"
78°12'40"
30.80
Blanton
GW-A
Permit WQ0001730 Page 1 of 4 Certification Date: May 22, 2009

ATTACHMENT S - Approved land Application Sites
Permit Number. WQ0001730 Version- 2.1
City of Raleigh
City of Raleigh Residuals land Application Program (D)
Field/Zone Id
Owner
Lessee
County
Latitude
Longitude
Net Acreage
Dominant Soil
Series
Applicable
Restriction in
Condition IV. 4.
Footnotes
01-13
Hobbs, Delmas
Sampson
35*03*56"
78'12'21"
38.10
Kenansville
GW-A
01-14
Hobbs, Delmas
Sampson
35°03'51"
78°12'13"
T30
Norfolk
GW-A
01-15
Hobbs, Delmas
Sampson
35°03'39"
78°10'32"
39.50
Goldsboro
GW-B
01-17
Hobbs, Oelmas
Sampson
35°03'01"
78'10'29"
22.20
Wagram
GW-A
01-18
Hobbs, Kevin
Sampson
35°03'21"
78'11-55"
23,30
Goldsboro
GW-B
01-19
Hobbs, Kevin
Sampson
35°03'30"
78'11'56"
25.40
Goldsboro
GW-B
01-20
Hobbs, Kevin
Sampson
35°02'30"
78'12-06"
39.50
Norfolk
GW-A
03-01
Hill, Violet L
Bass, Trent
Sampson
35'1608"
78'18'17"
23.80
Lynchburg
GW-B
Total for County
Sampson
387.20
NDS-1
Sauls, Normant D
Wake
35'40'10"
78°33'46"
4.19
Appling
GW-A
NDS-2
Sauls, Normant D
Wake
35*40'11"
78'33'39"
13.86
Appling
GW-A
NDS-3
Sauls, Normant D
Wake
35°40'29"
78`33'41"
18.06
Appling
GW-B
NR-004
City Of Raleigh
Wake
35°43'09"
78a30'01"
7.60
Appling
GW-A
c
NR-005
City Of Raleigh
Wake
3Y43'23"
78°30'03"
21.30
Appling
GW-A
C
NR-006
City Of Raleigh
Wake
35"43'23"
78°29'52"
5.00
Appling
GW-A
c
NR-007
City Of Raleigh
Wake
35°43'00"
78°29'52"
18.30
Durham
GW-A
c
NR-008
City Of Raleigh
Wake
35"43'42"
78°29'42"
25.00
Wedowee
GW-A
c, d
NR-009
City Of Raleigh
Wake
35°43'04"
78°29'35"
13.20
Wedowee
GW-A
c, d
NR-010
City Of Raleigh
Wake
35°43'11"
78`29'30"
7.80
Wedowee
GW-A
c, d
NR-011
City Of Raleigh
Wake
35'43'18"
78`29'42"
4,50
Wedowee
GW-A
c
NR-012
City Of Raleigh
Wake
35°43'26"
78°29'46"
20.80
Altavista
GW-A
c
NR-013
City Of Raleigh
Wake
35°43'20"
78°29'34"
6.60
Wedowee
GW-A
c
NR-014
City Of Raleigh
Wake
35'43'10"
78'29'28"
9,70
Wedowee
GW-A
c, d
NR-015
City Of Raleigh
Wake
35°43'09"
78'29'23"
.00
c
NR-016
City Of Raleigh
Wake
35"43'20"
78`29'26"
13.90
Wake
GW-A
c
NR-017
City Of Raleigh
Wake
35°43'22"
78°29'14"
5.20
Wedowee
GW-A
c
NR-018
City Of Raleigh
Wake
35°43'26"
78°29'06"
3,00
Louisburg
GW-A
C
NR-019
City Of Raleigh
Wake
35°43'25"
78"28'55"
9.30
Appling
GW-A
C
NR-020
City Of Raleigh
Wake
35°43'20"
78°28'43"
1110
Chewacla
GW-A
C
NR-021
City Of Raleigh
Wake
35'43'18"
78°28'53"
&80
Appling
GW-A
c
NR-022
City Of Raleigh
Wake
35'43'11"
78°28'56"
8.80
Appling
GW-A
c
NR-023
City Of Raleigh
Wake
35°43'22"
78°28'59"
5.40
Wedowee
GW-A
c
NR-025
City Of Raleigh
Wake
35°42'54"
78°28'59"
5.50
Colfax
GW-A
c
NR-026
City Of Raleigh
Wake
35'42'44"
78°29'06"
2.90
Colfax
L GW-A
c
NR-027
City Of Raleigh
Wake
35°42'55"
78°29'06"
7,30
Wedowee
GW-A
c, d
NR-028 lCity
Of Raleigh
Wake
35°42'50"
78°29'12"
30.20
Appling
GW-A
c, d
Permit WQ0001730 Page 2 of 4 Certification fate: May 22, 2009

ATTACHMENT B - Approved Land Application Sites
Permit Number: WQ0001730 Version: 2.1
City of Raleigh
City of Raleigh Residuals Land Application Program (0)
FieldlZone Id
Owner
Lessee
County
Latitude
Longitude
Net Acreage
Series Dominant Soil
Series
Applicable
Restriction in
Condition IV. 4.
Footnotes
NR-029
City Of Raleigh
Wake
35°43'02"
78'29'02"
7.30
Wedowee
GW-A
c, d
NR-030
City Of Raleigh
Wake
35°42'50"
78'29'30"
23.80
Wedowee
GW-A
c, d
NR-031
City Of Raleigh
Wake
35'42'54"
78'29'37"
25.30
Wedowee
GW-A
c, d
NR-032
City Of Raleigh
Wake
35"42'44"
78°29'21"
13.30
Appling
GW-A
c, d
NR-033
City Of Raleigh
Wake
35°42'46"
78°29'41"
12.50
Louisburg
GW-A
c, d
NR-034
City Of Raleigh
Wake
35°42'43"
78'29'38"
7.60
Louisburg
GW-A
c, d
NR-035
City Of Raleigh
Wake
35°42'37"
78929'27"
7.40
Wedowee
GW-A
c, d
NR-036
City Of Raleigh
Wake
35°42'38"
78'29'38"
10.30
Louisburg
GW-A
c, d
NR-037
City Of Raleigh
Wake
35°42'48"
78°29'48"
10.30
Louisburg
GW-A
c, d
NR-038
City Of Raleigh
Wake
35°42'46"
78°29'54"
17.10
Wedowee
GW-A
c, d
NR-039
City Of Raleigh
Wake
35°42'49"
78°29'57"
15.00
Wedowee
GW-A
c
NR-040
City Of Raleigh
Wake
35°42'49"
78°30'03"
7.30
Wedowee
GW-A
c
NR-041
City Of Raleigh
Wake
35°42'51"
78°30'10"
25,60
Wedowee
GW-A
c
NR-042
City Of Raleigh
Wake
35°42'49"
78°30'30"
4.20
Appling
GWA
c
NR-043
City Of Raleigh
Wake
35'42'29"
78°29'39"
10.40
Louisburg
GW A
c, d
NR-044
City Of Raleigh
Wake
35'42'20"
78°29141"
15A0
Appling
GW-A
c, d
NR-045
City Of Raleigh
Wake
35'42,10"
78°29'42"
8.80
Appling
GW-A
c, d
NR-046
City Of Raleigh
Wake
35'42'26"
78°29'27"
11.60
Wedowee
GW-A
c, d
NR-047
City Of Raleigh
Wake
35°42'33"
78-29'15"
13.30
Wedowee
GW-A
c
NR-048
City Of Raleigh
Wake
35°42'24"
78'29'17"
18.40
Wedowee
GW-A
c
NR-049
City Of Raleigh
Wake
35°42'09"
78"29'09"
10.00
Appling
GW-A
c
NR-050
City Of Raleigh
Wake
35°42'06"
78°30'00"
9.40
Wedowee
GW-A
c
NR-060
City Of Raleigh
Wake
35'42'16"
78°28'32"
20.93
Chewacla
GW-A
c
NR-061
City Of Raleigh
Wake
35°42'25"
78`28'23"
45.70
Wagram
GW-A
c
NR-062
City Of Raleigh
Wake
35"42'23"
78°28'41"
41.18
Altavista
GW-A
c
NR-063
City Of Raleigh
Wake
35°42'23"
78°28'56"
49.58
Altavista
GW-A
c
NR-070
City Of Raleigh
Wake
35"42'13"
78°29'54"
33.80
Vance
GW-A
c, d
NR-071
City Of Raleigh
Wake
35'42'06"
78°30'07"
2.60
Appling
GW-A
c
NR-072
City Of Raleigh
Wake
35°42'07"
78°29'50"
4.36
Appling
GW-A
c
NR-073
City Of Raleigh
Wake
35"41'59"
78"29'51"
2.70
Appling
GW-A
c
NR-074
City Of Raleigh
Wake
35°41'48"
78°30'08"
7.80
Louisburg
GW-A
c
NR-075
City Of Raleigh
Wake
35°41'53"
78'29'55"
46.10
Norfolk
GW-A
c
NR-100
Material Recovery L L C
Wake
35°42'40"
78130'24"
.00
e
NR-101
Material Recovery L L C
Wake
35'42'33"
78°30'07"
'00
e
NR-102
Material Recovery L L C
Wake
35°42'38"
78°30'02"
.00
e
NR-200
City Of Raleigh
Wake
35°41'51"
78-29-18"
14.00
Wagram
GW-A
c
Permit WQ0001730 . Page 3 of 4 Certification Date: May 22, 2009

ATTACHMENT B -Approved Land Application Sites
Permit Number: W00001730 Version: 2 1
City of Raleigh
City of Raleigh Residuals Land Application Program (D)
Field/Zone Id
Owner
Lessee
County
Latitude
Longitude
Net Acreage
Series Dominant Soil
Series
Applicable
Restriction in
Condition IV. 4.
Footnotes
NR-201
City Of Raleigh
Wake
35'41'50"
78'29'06"
5.80
Appling
GW-A
c
NR-500
City of Raleigh
Wake
35'41'54"
78'28'60"
27.00
Appling
GW-A
c
NR-501
City Of Raleigh
Wake
35'42'03"
78`29'31"
8.90
Durham
GW-A
C
NR-502
City Of Raleigh
Wake
35'41'58"
78129'25"
11.80
Wedowee
GW-A
c
NR-503
City Of Raleigh
Wake
35'41'46"
78`29'26"
20.00
Durham
GW-A
c
NR-511
City Of Raleigh
Wake
35'42'18"
78'29'30"
11.70
Appiing
GW-A
c
NR-519
City Of Raleigh
Wake
35'42'29"
78'29'54"
25.00
Appling
GW-A
c, d
NR-520
City Of Raleigh
Wake
35'42'20"
78'30'03"
18.80
Appling
GW-A
c, d
NR-524
Material Recovery L L C
Wake
35'42'24"
78'30'C6"
.00
e
NR-600
City Of Raleigh
Wake
35'41'38"
78'29'39"
5.10
Wedowee
GW-A
c
NR-601
City Of Raleigh
Wake
35'41'51"
78'29'42"
12.10
Appling
GW-A
c
NR-602
City Of Raleigh
Wake
35`42'00"
78'29'41"
12.50
Durham
GW-A
c
Total for County
Wake
999.06
Total
2,269.29
a This land application site has a 17.20-net acre tobacco allotment area associated with it, in which the landowner plants 3.00-net acres in tobacco each year. The area cropped may varywithin
the total tobacco allotment area. This entire site, subtracting out required setbacks/buffers, shall be approved for residuals land application. however, only a maximum of 35-50 net acres of area
(i.e., the total applicable area minus the area cropped in tobacco) may be applied to in any given yeac if residuals are land applied to this site during the calendar year, the Permittee shall submit
a buffer map that depicts exactly which 35.50 net acres of this site have received residuals with the annual report that is required by Condition III. 10- In addition, the Permittee shall take special
care to coordinate with the landowner to comply with Condition 11. 18. at all times.
b A variance from the setback/buffer required by Condition III. 5. j. has been granted for this land application site. This variance shall be allowed as long as strict compliance with Condition III.
9- is maintained. The upstream and downstream surface water shall be monitored and sampled at the location provided in Figure 1.
c Land application of residuals (i.e., both Class B and Class A 8Q products) on these land application sites shall be strictly prohibited until such time that a permit modification (i.e., Attachment B
only) has been applied for and received from the Division. Following receipt and review of this package, the Division shall reissue this Attachment 8 under such conditions and limitations as it
may deem appropriate. Note that a modified Attachment B to allow land application of residuals on this site shall not be issued until documentation can be made to the satisfaction of the Division
that the iand application activities will not cause or contribute to violations of water and groundwater quality standards.
d These land application sites shall be approved for reclaimed water irrigation. The operation of reclaimed water lrhgation system shall be conducted in accordance with an irrigation operation
plan dated July 24, 2008 as specified in Condition 111.14, The "application efficiency" used in the calculation of the net irrigation amount for all fields shall be assigned at 75%. In case that the
Permittee wishes to use different numbers that are lower than 75%, documentation to support the determination and justification of the new selected value is required and a permit modification
request must be submitted to the Division for approval of a new application efficiency.
e It is the Division's understanding that this land application site has been sold by Mr. Ashley Turner to Material Recovery, L.L.C. for the development of a construction and demolition landfill.
Therefore, this site is no longer available for residuals Sand application. However, the Division shall retain this site in the permit until such time that all exceedances of the groundwater quality
standards associated with it have been resolved to the satisfaction of the Division.
Permit WQ0001730 Page 4 of 4 Certification Cate: May 22, 2009

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VICINITY MAP
C!3LTD HOBBS FARMS (SITE 1)
DUPLIN COUNTY FIELDS 1-3
SCALE: 1" = 2.3 MILES CITY OF RALEIGH LAND APPLICATION
ENGINEERING PROGRAM
CONSULTING PERMIT 0001730
SERVICES,LTD xsc/ix-as os G-10027

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CONSULTING PERMIT W ODD1730
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TO FIELD 3 THE ACREAGE wr HZN THE "TOBACCO ALOTMENT AREA"
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LTD HOBES FARMS (SITE 1)
SAMPSON COUIVYI'Y FIELDS 7—z0
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ENGINEERING PROGRAM
CONSULTING PERMIT W 0001730
�'�oo
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c
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FIGURE 3E--2
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HOBBS FARMS (SITE 1)
FIELD 9
CITY OF RALEIGH LAND APPLICATION
PROGRAM
PERMIT WQ000173D
wm�
TAC/12-03--03
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ATTACHMENT — APPROVED SPRAY IRRIGATION OPERATION PLAN
Permit Number: WQ0001730 Certification Date: March 20, 2009
City of Raleigh Public Utilities Department (CORPUD)
Neuse River WWTF
Biosolids Farm Spray Irrigation System

SPRAY IRRIGATION OPERATION PLAN
PHASES I, II & III
CITY OF RALEIGH PUBLIC UTILITIES DEPARTMENT
(CORPUD)
NEUSE RIVER WASTEWATER TREATMENT FACILITY
BIOSOLIDS FARM SPRAY IRRIGATION SYSTEM

SPRAY IRRIGATION OPERATION PLAN
CITY OF RALEIGH PUBLIC UTILITIES DEPARTMENT
(CORPUD)
NEUSE RIVER WASTEWATER TREATMENT FACILITY
BIOSOLIDS FARM SPRAY IRRIGATION SYSTEM
�SE�.�� CAf�C3 ��!•
041
' 164 0
Y
• 1
07�2,
July 24, 2008
PREPARED FOR:
CITY OF RALEIGH PUBLIC UTILITIES DEPARTMENT
ONE EXCHANGE PLAZA
219 FAYETTEVILLE STREET, SUITE 620
POST OFFICE BOX 590
RALEIGH, NC 27602
OFFICE: [phone]
FAX: [phone]
DONALD L. SAFRTT, PE
MCKIM & CREED, PA
1730 VARSITY DRIVE, SUITE 500
RALEIGH, NC 27606
OFFICE: [phone]
FAX: [phone]
PREPARED BY:
DONALD L. WELLS, LSS
SOIL & ENVIRONMENTAL
CONSULTANTS, PA
11010 RAVEN RIDGE ROAD
RALEIGH, NC 27614
OFFICE: [phone]
FAX: [phone]
RONALD E. SNEED, PhD, PE,
CID, CIC, CAIS, CLIA
3405 MALIBU DRIVE
RALEIGH, NC 27607-6506
OFFICE: [phone]
FAX: [phone]

Spray Irrigation Operation Plan
City of Raleigh Public Utilities Department (CORPUD)
Neuse River Wastewater Treatment Facility
Biosolids Farm Spray Irrigation System
Background
TheDivision of Water Quality (DWQ) issued Non -Discharge Permit No. WQ0001730
on August 15, 2007. The permit was issued for the construction of the Phase II spray
irrigation system. The permit did not allow the continued irrigation of Phase I fields or
start up irrigation of the Phase II fields until a spray irrigation methodology was
approved. The spray irrigation methodology will be approved via a permit
modification.
Purpose
The purpose of this Spray Irrigation Operation Plan is to meet the requirements of
DWQ for describing a spray irrigation methodology suitable for operation of the Neuse
River Biosolids Farm Spray Irrigation System.
512ray Irrigation 012eration Plan
The principal issues to address are relatively simple — what amount of water
(hydraulic loading in inches) should be applied and what is the frequency of
application. Typically, this approach is based upon the hydraulic conductivity of the
specific soils underlying a spray irrigation system. However, due to elevated nitrate
levels in the vicinity of the biosolids farm program, CORPUD and DWQ agreed to
minimize the potential for additional nitrate contributions to the groundwater. The
agreed upon approach is to Iimit the hydraulic loadings to the biosolids farm to meet
just the evapotranspiration (ETA) needs of the crops grown on the sites to be irrigated.
Since hydraulic loadings will be limited to the ETA, very little or no potential will exist
for exacerbation of nitrate concentrations in the groundwater. Irrigation of the farm
Spray Irrigation Operation Plan
Page 1

crops will ensure healthy and vigorous crops and will assist with management of
applied nutrients.
The approach considered includes integration of the following program aspects:
• Soil - types, characteristics, available water holding capacity
• Crops - specific type, growth cycle, intermediate harvests
• Climate -site specific climatic data to generate crop specific ETA
Table l describes the status of three phases of the Biosolids Farm Spray Irrigation
System as well as specific information about each phase.
Table 1- Neuse River Biosolids Farm Spray Irrigation System
Phase
Spray Zones
Fields
Wetted Area
Status
(Acres)
I
8, 9, 10, 11, 12, 20,
8, 9, 10, 30 & 31
90.22
Ready for operation
21, 22, 23 & 24
II
1, 2, 3, 4, 51 6, 7, 12 &
14, 27, 28, 29, 32, 33, 34,
111.87
Under construction
25
35, 36, 37 & 38
III
26, 27, 28, 29, 30, 31,
43, 44, 45, 46, 70, 519 &
96.48
Under design
32 & 33
520
Phase I fields have recently been mapped to identify their soil types and to ensure
consistency with subsequent phases regarding suitability for irrigation. This soil
identification work was conducted by Soil & Environmental Consultants, P.A. No
hydrogeological evaluations were conducted on the Phase I fields since this phase has
already been permitted and there are no plans to modify the existing spray irrigation
system. With the planned approach of utilizing ET, hydrogeological considerations
become less critical in the operation of the system due to the limited amount of water
draining through the soil profile. Soil mapping and hydrogeological evaluations had
previously been conducted on the Phase II and Phase III fields. Phase II soil mapping
Spray Irrigation Operation Plan
Page 2

was conducted by Synagro and Phase 11 hydrogeological work was conducted by Edwin
Andrews and Associates. Phase III soil mapping was conducted by Soil and
Environmental Consultants, P. A. and Phase III hydrogeological work was conducted by
Eagle Resources.
Figure 1- Current Phases of Neuse River Siosolids Spray Irrigation System
Spray Irrigation Operation Plan
Page 3

The Spray Irrigation Operation Plan could consider three different hydraulic loading
regimes — the traditional approach utilizing soil and drainage characteristics (water
balance); hydraulic modeling to predict loadings that do not contribute impacts to
groundwater quality standards at the compliance boundaries; or use of a ETA approach
to limit hydraulic loadings to amounts that ensure a healthy and vigorous crop. See
Figure 2 for a general schematic representation.
Figure 2 — Three Difference Hydraulic Loading Regimes
10
9
8
7 ..'
6 —Traditional Approach
5 Hydrogeological Model
4
ETc
a I �—
= 3 — — —
2 — -----`*f--
1
p
J F M A M d J A 5 0 N D
The proposed approach utilizing ET, is a conservative and approach that will meet
the objectives of only irrigating the necessary hydraulic loadings needed to meet the
crop water needs of the specific cover crop through the growth cycle. For each specific
cover crop, a crop coefficient curve will be utilized that provides a recommended
hydraulic loading based upon the current stage of growth for the specific crop. Figure 3
provides a typical crop coefficient curve for corn.
Spray Irrigation Operation Plan
Page 4

Figure 3 — Crop coefficient for corn
Kc Curve Values for Corn
1.00
0.80
0,60
0.40
0.20
0.00
0 20 40 60 80 100 120 140
Days During Active Growing Season
The Neuse River Spray Irrigation System also has the capability of measuring
climatic data on site. The existing weather station (Davis Vantage Prot Plus) is solar
powered and is wirelessly connected to the PLC that controls 'the irrigation system.
There are four consoles located at the plant site that allow staff to access current weather
conditions as well as historical data. The weather station is capable of monitoring
temperature, relative humidity, rainfall, UV and solar radiation, as well as wind speed
and direction. This weather station data will be utilized to generate a daily, site specific
reference evapotranspiration (ET.). The ETo will be multiplied by the specific crop
coefficient (K,:) to obtain the crop evapotranspiration (ETc).
From the soils series mapping data, predominate soil type and available water (AW)
which is defined as AW=FC-PWP, where FC is field capacity and PWP is permanent
wilting percentage are determined for each zone. Because some irrigation zones cover
more than one field, soils and crop data is needed by irrigation zone. This may mean
that several fields are planted in the same crop within the same zone. Irrigation
requirements in an irrigation zone will be determined by the predominate soil type in
Spray Irrigation Operation Plan
Page 5

the irrigation zone. This means that minor soil series within a zone may be slightly over
or under irrigated. This is an acceptable method to schedule irrigation.
The farm operators must input the crop by irrigation zone. The irrigation schedule
must be capable of handling all the crops produced on the farm as crops are rotated
between fields throughout a given year. Even the fields that are planted to fescue and
coastal bermuda may be rotated to another crop, but not on the frequency of annual
crops.
Rooting depth of all crops must be known or estimated. For the annual crops,
rooting depth changes from the time the seed is planed until the crop reaches some level
of maturity. Actually in the soils on this farm, because of physical and chemical
limitations, the crops probably reach their maximum rooting depths within four to six
weeks after planting. Also, crops receive 70 percent of their soil water from the top half
of the root zone. During the early stages of the life of an annual crop, water use is low
and little irrigation is generally needed. For the soils and crops grown on the WWTP
farm, a maximum rooting depth of 12 to 14 inches is used, and less for fescue and wheat.
There are several terms that are related to rooting zone and available water. Plant
available water (PAW) is defined by PAW=AW x RZ (root zone depth.). Soil samples
from within each dominant soil series was collected and analyzed for the sail moisture
data at various pressures. This data was used to measure the available water (AW) at
field capacity and wilting point. Average thickness of the soil horizons was used, and
that can vary across the site. The idea is that all the AW is not used before irrigation is
begun. MAD is management allowable depletion, which can account for irrigation
system limitations, soils and management options. The amount of water that is used
before irrigation is begun is defined as allowable depletion (AD) which is defined as
AD=PAW x MAD/100 which is the same term as readily available water (RAW). The
system operator has to decide the amount of PAW to use before beginning irrigation.
Spray Irrigation Operation Plan
Page 6

For the field and forage crops grown on the WWTP farm, a MAD of 55 to 70 percent is
recommended. While a 60 percent MAD is acceptable and will ensure that the crop does
not suffer from lack of soil moisture, the operators have to be aware of the total acreage
of crops to be irrigated, system capacity, number of hours of operation per day and days
per week, plus application efficiency (Ea) in deciding on the MAD value to use. It is
much easier in an and climate where all or most soil moisture is supplied by irrigation.
It is more difficult in a humid climate where rainfall supplies most of the soil moisture.
As mentioned above, AD is computed based on PAW and a MAD, which determines
the amount of net irrigation to apply. To determine the amount of gross irrigation to
apply, AD has to be divided by application efficiency. For the permanent irrigation
system used on the WWTP, application efficiency is in the range of 55 to 65 percent.
Because the precipitation rate of the irrigation system is greater than the soil intake rate,
cyclic irrigation will be required to apply the needed irrigation without runoff occurring.
The system operators will need to compute the precipitation rate for each irrigation
zone_ This was not done by the system designers or installers. The equation to use is:
PR = 96.3 * GPM/A
Where PR = precipitation rate (in/h)
96.3 = constant
GPM = total flow rate into the spray area
A = total area being irrigated in sq. ft.
This equation provides an average gross precipitation rate of the area. The depth of
water applied or the rate of application will not be the same for every point in the area
being irrigated. This is true because the sprinklers do not apply water uniformly over
the wetted area. The precipitation rate for each irrigation zone should be input data into
the irrigation scheduling program. The operators will need to estimate application
efficiency based upon the irrigation equipment. Once the AD or amount of net
irrigation is computed for a zone, the gross amount of irrigation to apply can be
computed. Operating time is then computed with the equation RT (run time) = Gross
Spray Irrigation Operation flan
Page 7

Application 1 PR x 60. This will give the run time in minutes. Length of irrigation cycle
should ensure no runoff occurs and other factors observed by the operator. Cycle times
are based on cover, planting operation (i.e. no till vs. tillage) and soil type. It may be
possible to apply the total volume in several shorter applications.
Spray Irrigation Operation Plan
Page 8

Excel Workbook Approach for Determining Spray Irrigation Operation
The following depicts the Excel Workbook approach that CORPUD will utilize to
determine how much reclaimed water to irrigate on a specific zone for each day and
irrigation event.
Step 1 Basic information is tracked for each field and zone. The wetted area is
important to ensure that hydraulic and nutrient loadings are properly
accounted. Specific crop and planting dates are important to determine
the specific K� values. For annual crops, harvest dates will need to be
included as well. The predominant soil type and associated available
water (AW) has been determined and provided for each spray zone.
PHASE
WET AREA Predominant Available
ZONE FIELD (ac) Soil Water (AW) Crop Plant Date Harvest Date
(inlin)
8
31
10.63
Appling
0.14
Corn
04/13/07
9
31
8.91
AppMq
0.14
Corn
04/13/07
10
31
11.84
Apvfinq
0.14
Corn
04/13/07
11
30
8.03
Applinq
0.14
Corn
04/13107
12
30
7.32
Helena
0.13
Corn
0413/07
20
8
9.55
Helena
0.13
Corn
D4113107
21
8
7.97
1 Applinq
1 0.14
Corn
04/13/07
22
8
8.36
1 Appling
0.14
Corn
04/13/07
23
9
7.97
1 Aprflinq
0.14
Corn
041QY07
24
10
9.64
1 Appling
0.14
Corn
04/13/07
Step 2 For each crop, a K� value will be determined based upon the current date
and the planting date. The basis of the K, data is from the growth / crop
coefficient curve as depicted in Figure 3 in the base document.
K, for Corn
Days
Plant Date Current Date Since KC
Planting
04/13/08 06/02/08 50 0.867
Spray irrigation Operation Plan
Page 9

Step 3 ETo will be determined by the use of the site specific weather station.
Raleigh Neese River Wastewater Treatment Facility
Davis Vantage Pro 2 Weather Station
Monday, June 02, 2008
Air Temperature Relative Humidity
Station
Wind Speed
Solar Radiation
Evapotranspiration
Date ITime (EST)
(F)
(percent)
pressure (mb)
(mph)
(W/m"2)
(ET,) Total (in)
6/1120081:00
66.4
56
999
3.4
0
0
611 t2008 2:00
64.3
62
999
4.4
0
0
611 /2008 3:00
63.6
63
999
3.3
0
0.01
61112008 4:00
62.3
69
999
4.3
0
0
6l112008 5:00
62.4
67
999
4.1
4.874
0
611 /2008 6:00
64.5
67
999
3.1
148.2
0
611 /2008 7:00
66.7
64
999
4.1
404.2
0.01
61112008 8:00
70
58
999
2.B
546.3
0
61112008 9:00
73.2
48
999
2.2
721
0.01
6111200810:00
74.8
41
999
0.7
878
0.02
611/200811:00
75.9
37
999
4.3
957
0.02
611 /2008 12:00
78.3
33
999
7.8
1005
0.02
6111200813:00
80.1
30
998
4.5
1002
0.01
6111200814:00
81.1
28
997
4.7
926
0.02
6111200815:00
82.3
26
997
8.8
796
0.03
6/1/2008 1 MO
82.9
26
996
8.4
620.1
0.02
6111200817:00
82.4
26
996
7.2
424.1
0.02
6/1/200818:00
80.4
30
997
4.7
223.3
042
611/200819:00
78.1
38
997
0.9
24.76
0.01
6/1/2008 20:00
70
55
998
0,7
0
0
6/1/2008 21:00
66,8
63
998
0.6
0
0.01
6/1/2008 22:00
64.7
72
999
0.4
0
0
611/2008 23:00
64.3
70
999
0
0
0
611 /2008 23:59
82.6
76
999
0.3
0
0
06/01/08
Total ET,
q,y3
Step 4 ETc will be computed by the use of the site specific weather station data
(ET.) as well as the crop specific K. The crop factor and the crop water
use data are part of the irrigation program. For annual crops, crop factor
and crop water use data change with the stage of growth. For grass
crops, only water use data changes with time of year, i.e. warmer
temperature, more ETA.
ETi,
Date Crop ETo Kc ET,
06/02/08 Corn 0.23 0.867 0.20
Spray Irrigation Operation Plan
Page 10

Step 5 Compute plant available water (PAW) for each crop for the predominate
soil type by irrigation zone.
PHASE
Praci Itatton Data
Plant Available Water
ZONE
F1ELA
WET
AREA (ac)
Predominant
soli
Crop
Rainfall'
Irrigation'
Taal
Precipitation
Available
Water
(AW)
(twin)
Plant
Root Zone Available
Oegth (In) Water (PAW)
Current Plant
Availablelast
ICble Water
a
n
Com
C.00
0.00
0.00
0.14
14_0
1.96
1.76
9
n
Com
0.00
M.
0.00
0.14
14.0
1.9E
1.76
10
��7
-n
Gom
0.00
0.00
0.00
0.14
14.0
1.96
1.76
11
A h
Com
0.00
0.00
0.00
014
14.0
1.96
..7s
12
Hyena
ram
0.00
0.00
0.00
g.13
1a.0
1.82
1-62
20
8
9.55
Helena
Com
0.00
0.00
0.00
0.13
14.0
1_82
1.62
21
a
7.97
Aopting
Com
0.00
0.00
0.00
0.14
14.0
1.96
1.76
22
B
8.36
Ao itt
Corn
0.00
0.00
0.00
0.14
14.0
1.95
1.76
23
9
7.97
Appinrl
Corr
0.00
0.00
0.00
0.14
14,0
196
1.2
24
10
9.6d
A lino
Cam
0.00
6.00
0.00
0.14
14.0
1.96
1.76
Notes:
1 - Rainiall (inches) as measured from on -site weather stahon.
2 - Amount recently irrigated (inches).
Step 6 Compute allowable depletion (AD) for each crop for the predominate soil
type by irrigation zone. The system operator will need to specify the
management allowable depletion (MAD) value. A value of 55 to 70
percent is recommended.
PHASE I
Allowable Depletion
ZONE
FIELD
WET
AREA
(ac)
predominant
Soil
Crop
Management
Allowable
Depletion
(MAD)
Allowable
Depletion
(AD) (in)
Soil Masiture
Remaining at
MAD (in)
irrigation
Amount
(in)
8 1
31
10.63
Applin2
Corn
576/6
1.12
0,84 1
1.16
9
31
8.91
ADplinq
Corn
57%
1.12
0.84
1.16
10
31
11.84
A iina
Com
57%
1.12
0.84
1.16
1 1
30
8.03
ii
Cam
57%
1.12
0.84
1.16
12
30
7.32
Helena
Cam
57%
1.03
0.77
1.08
20
8
9.55
Helena
Corn
57%
1.03
0.77
1.08
21
8
7.97
A in
Corn
57%
1.12
0.84
1.16
22
8
8.36
A olin
Corn
57%
1.12
0.84
1.16
23
1 9
7.97
Apphng
Corn
57%
1.12
0.84
1.16
24
1 10
1 9.64
Appling
Cnrn
57°!
1.12
0.84
1.16
Notes:
1 - When CPAW is less than or equal to the Soil Mositure Remaining at MAD, irrigation is needed. In this particular
example, assuming no irrigation or no rainfall, and similar ET. of 0.20; irrigation would be required in 6 days.
Spray Irrigation Operation Plan
Page 11

Step 7 Input gross average precipitation rate for each irrigation zone. Once
allowable depletion (AD) is determined, compute gross irrigation
required per irrigation zone. Based on gross irrigation required by
irrigation zone and knowing precipitation rate, compute zone runtime
and then decide the number of cycles to prevent runoff.
PHASE
WET Finwrate
ZONE FIELD AREA per Zone
ac m
Application
Efficiency
Run Time Grass Net Gross Application
ihr) Irrigation Irrigation Precipitation Amount
in in in/hr allons
8
31 1
10,63
1,976
61%
1.90
1.16 0.41
4.6
548,870
9
31 1
8.91
1,952
61%
6 0.48
3.9
460,060
10
31
11.84
1,901
61%
16 0.35
5.4
61i 347
11
30
8.03
1216
61%
16 0.33
5.7
414,622
12
30
7.32
1,272
61%
06 0.38
4,6
351,895
20
8
9.55
1 509
61%
L1,9CI
08 0,35
5.1
459 098
21
6
7.97
1.716
61%
16 0.48
4.0
411,524
22
8
8.36
2,023
61%
16 0.53
3.6
431,661
23
9
7.97
1.342
61%
16 0.37
5.1
411 52424
10
9.64
546
61°/
16 0.35
5.4
497 752
Actual applied volumes will be properly documented and recorded for inclusion in
DWQ monthly monitoring reports (NDMRs). These hydraulic loadings in conjunction
with nutrient monitoring data from the facility (NPDES DMR) will be used to track and
document actual nutrient contributions to the farm fields. CORPUD currently uses a
rigorous software package that tracks nutrient loadings associated with the biosolids
program. CORPUD's nutrient management and accounting system will ensure
protection of both surface and groundwater resources.
Spray Irrigation Operation Plan
Page 12

LIST OF ABBREVIATIONS AND FORMULAS
AD ..........................................................
Available depletion
AW.........................................................
Available water
CPAW....................................................
Current plant available water
Ea............................................................
Application efficiency
ETA ..........................................................
Evapotranspiration needs of a specific crop
ET. ..........................................................
Reference evapotranspiration
FC...........................................................
Field capacity
GP or PR ................................................
Gross precipitation or precipitation rate
IRS ......................................................
Gross irrigation
IM..........................................................
Irrigation interval
IR iet.........................................................
Net irrigation
K.............................................................
Specific crop factor
MAD ...................................................... Management allowable depletion
PAW ......................................................
Plant available water
PR ...........................................................
Precipitation rate
PWP.......................................................
Permanent wilting percentage
RAW ......................................................
Readily available water
RT...........................................................
Run time
RZ...........................................................
Root zone
AD = (PAW) * (MAD/100)
AW=FC-PWP
CPAW = PAW - ET, + R + I
ETA = ET. X Kc
Mg. = IRnet / Ea
GP = PR = (96.3) - (GPM) / (A [ft=j)
PAW = (AW) (RZ)
RT = (iRg-.)1(PR)
Spray Irrigation Operation Plan
Page 13