WQ0001730_Final Permit_20090827

&j-aJ
NCDENR
North Carolina Department of Environmen and Naturai Rmsources
Division of Water Quality
Eeverly E-aves perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary
August 27, 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 received on July 7, 2009, we are
forwarding herewith a modified Permit No. WQ0001730, dated August 27, 2009, to the City of Raleigh
for the subject residuals land application program. This permit is being modified to include a schedule for
the implementation of the Nitrogen Mitigation Plan and groundwater corrective action plan (CAP) to
address nitrate contamination in groundwater at the biosolids fields at the NRWWTP.
This permit shall be effective from the date of issuance until March 31, 2012, shall void Permit
No. WQ0001730, issued on May 22, 2009; and shall be subject to the conditions and limitations as
specified therein. Of special interest to you may be the followings;
+ Condition 11-1., compliance schedule regarding the implementation of the Nitrogen
Mitigation Plan and groundwater corrective action plan (CAP)
♦ 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 ail 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.
A0017ER PROTE-710R SECTION
1636 Dail Service Center, P,aleiah, North Carolina 27699-1636
Location: 2728 Capital Boulevard. Raleigh North Caroim 27504 F,
Pnone: 919-733-3221 ! FAX [phone]; FAX Z 919.715-60481 Customer Service 1-877-625-6748 �}nl Y
Internet: www,ncwater ualitv.o Mm-th Caro,i a
An Enai Opportunlnr ti kfh mbl lve cuur, Ernolove, Natimill

Mr. H. Dale Crisp, P.E.
August 27, 2009
Page 2
If any parts, requirements, and/or limitations contained in this permit are unacceptable, you have
the right to request an a judicatory heating 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 b714 Mail Service
Center, Raleigh, North Carolina 27699-6714. Unless such demands are made, this permit shall be final
and binding.
If you need any additional information concerning this matter, please contact Chonticha
McDaniel by telephone at [phone], or via e-mail at chonticha.mcdanielCi%ncmail.net.
Sincerely,
fr C en H. Sullins
cc: Duplin County Health Department
Sampson County Health Department
Wake County Health Department
FayetteNrille Regional Office - Aquifer Protection Section
Raleigh Regional Office - Aquifer Protection Section
Wilmington Regional Office - Aquifer Protection Section
Tian Woody/City of Raleigh
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 BEREBY GRANTED TO
City of Raleigh
Wake County
r.1
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 listed 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,
constriction 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 pan 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 applications 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 May 22, 2009; and shall be subject to the following specified conditions and
limitations:

1. SCHEDULES
Upon completion of construction and prior to operation of the reclaimed water irrigation
system Phase II and III, a certification (see attached forth) 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 co:-,mleted
in phases and partially certified. you shall retain the responsibility tc� track further construction
approved under the same permit. and shall rovide 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 [phone], 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
11.. 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:
Groundwater Corrective Action
Date of Completion
Activity to Be Completed
Ongoing (until 2L
♦ Provision of bottled potable water to or connection to the
standards are
municipal potable water distribution system of any additional
achieved in
properties served by water supply wells identified by the Division
associated monitoring
or the Permittee as being impacted or potentially impacted by the
wells)
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 bours of first
knowledge of said impact.
Ongoing (until 2L
♦ Continue implementing the groundwater corrective action
standards are
plan comprising the groundwater extraction system and E
achieved in
groundwater monitoring program, which was submitted to DWQ
associated monitoring
on December 1, 2005 and approved by DWQ on July 19, 2006, as
wells)
modified in accordance with conditions included in the approval
letter ("Revised CAP") [implementation begun in January 2008].
Tr -annually on the
♦ Submit a written report to DWQ-Raleigh Regional Office -
last day of the months
Aquifer Protection Supervisor pursuant to the Revised CAP.
of April, August, and
December
2

On -site Subsurface Flow Treatment Wetlands
Date of Completion
Activity to Be Completed
Within 30 days of the
♦ Submit any necessary applications for regulatory approvals
issuance of this
for the on -site, subsurface flow wetlands (SSF Wetlands)
permit
component of the nitrogen mitigation plan proposed in
"Alternatives Analysis Report and Mitigation Plan for Addressing.
Increased Nitrogen Loading to Surface Water at the Neusc River
Wastewater Treatment Plant, Raleigh, North Carolina" prepared
by ENSR Corporation (currently known as AECOM
Environment) dated February 2008, as modified by
correspondence from ENSR Corporation dated July 18, 2008, and
by correspondence from AECOM Environment dated December
2, 2008 and April 3. 2009 ("Nitrogen Mitigation flan")
[COMPLETED].
Within 120 days of
♦ Commence construction of the SSF Wetlands pursuant to the
receipt of all
Nitrogen Mitigation Plan and all necessary regulatory approvals
necessary regulatory
for the SSF wetlands.
approvals
Within 120 days of
♦ Complete construction of the SSF Wetlands.
commencement of
construction of the
SSA' Wetlands
Monthly following
♦ Inspect the SSF Wetlands and maintain records of such
construction of the
inspections pursuant to the monitoring plan to be approved by
SSF Wetlands, unless
DWQ. If inspection reveals any failure(s) in structural integrity,
a different frequency
flow routing, and operational functionality, The Division shall be
in approved in writing
contacted according to the reporting requirements established in
Condition rV.l 1.
by DWQ
January 3151 of each
♦ Submit a written report to DWQ on the operation,
year following,
performance, monitoring, and maintenance of the SSF Wetlands
construction of the
in the prior calendar year.
SSF Wetlands
Off -site Riparian Buffer Restoration
I Date of Completion I Activity to Be Completed
Within 30 days of the ♦ Submit to DWQ for approval a proposed buffer restoration
issuance of this plan for the off -site, Butler Branch riparian buffer project
permit ("Riparian Buffer Restoration Project") described in the Nitrogen
Mitigation Plan [COMPLETED].
Within 120 days of ♦ Commence construction of the Riparian Buffer Restoration
receipt of all Project pursuant to the Nitrogen Mitigation Tian and all necessary
necessary regulatory regulatory approvals for the Riparian Buffer Restoration Project.
Within one year of ♦ Complete construction of the Riparian Buffer Restoration
receipt of all Project and submit as -built drawings to DWQ.
necessary regulatory
3

Upon approval of the ♦ Inspect the Riparian Buffer Restoration Project and maintain
monitoring plan and records of such inspections pursuant to the monitoring plan to be
the start up of the approved by DWQ. If inspection reveals any need for
project. maintenance or supplemental planting, within 30 days of such
observation, implement any necessary remedial actions and notify
DWQ in writing of the remedial actions taken.
January 3 1 " of each • Submit a written report to DWQ on the results of the annual
year following inspection of the Riparian Buffer Restoration Project and any
construction of the maintenance or remedial actions taken in the prior calendar year.
Riparian Buffer
Restoration Project
In the event that the Permittee is unable to complete any of the foregoing activities by the
specified date of completion due to an act of God or other force majeure event beyond the
City's control, including, but not limited to inclement weather or adverse field conditions, the
Permittee the Permittee shall be given a reasonable period of additional time within which to
complete such activity. To obtain an extension of the specified date of completion, the
Permittee shall. at least 30 days prior to the specified date of completion, make a request in
writing to the Division, which shall include justification for the extension and a proposed new
date of completion. The Division will. provide a written decision on the request within 10 days
of receipt.
2. The residuals land application and reclaimed water inigation 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,
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.
5. In the event that the residuals land 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.
5. The appropriate local governmental official (i.e., county manager, city manager, etc.) shall be
notified at least 24 fours 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
no

regional offices, their county coverage, and their contact information may be downloaded
from the web site at http://h2o.enr.state.nc.us/lau/golir-ations.html (Form WSCA).
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 WWTP 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 kilo •am)
Arsenic
75
Cadmium
85
Copper
4,300
Lead
840
Mercury
57
Molvbdenum
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.
111. OPERATION AND NUP TENANCE REQUMEMENTS
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 Permittec 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 M. 18.) 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,
5. 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.
6. 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.
7. 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.
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 Comnnission (WPCSOCC), the Permittee shall designate a
certified land applieationiresiduals 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.
2

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 11 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 anv other lakes or impoundments for surface application;
f. 50 feet from any streams classified as W S 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 fees 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.
7

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 loading rates on any land application site shall not exceed the following
Cumulative Pollutant Loading Rates (CPLRs):
Parameter
CPLR
(kilograms per hectare)
CPLR
founds er acre)
Arsenic
41
I 36
Cadmium
39
34
Copper
1,500
1,338
Lead
300
267
Mercury
17
15 I
Molvbdenum
; n/a
11l2 l
Nickel
420
374
Selenium
100
89
Zinc
f 2.800
2,498
16. An acceptable pH shall be maintained in the soil, residuals, and lime mixture, greater than 6.0.
on all land application sites onto which residuals are land applied to ensure optimum yield for
the crops specified in Condition ill. 18. The agronomist shall provide information on the pH
best suited for the specked 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 land 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:
N.

PAN
PAN
Crop
(pounds per
Crop
(pounds per
acre per vear)
acre per vear)
Alfalfa
200
Forest
75
(_Hardwood or Softwood)
Bermuda Grass
220
I Milo
100
(Hay or Pasture)
Blue Grass
120
Small Grain
100
(Wheat, Barley. or Oats)
Corn
I60
m Sorghuor Sudex
180
(G)
(Pasture)
j Corn
2ao
Sorghum or Sudex
220
(Silage)
(Silage)
Cotton
70 --T—Timothy,
Sovbeans
200
Fescue
2� 0
Orchard, or
20a
Rve Grasses
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 harvester) 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.
01

26. Surface -applied residuals shall be plowed or disced within 24 hours after land application on
land application sites with no cover crop established.
2 . 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.
IV. MONITORING AND REPORTING REQUiREWNTS
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.
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.
After the residuals have been monitored as specified above for two years at the frequency
specified its 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.
10

The TCLP analysis shall include the following parameters (i.e., note the regulatory level in
milligrams per liter in parentheses):
Arsenic (5.0)
Barium (100.0)
Benzene (0.5)
Cadmium (1.0)
Carbon tetrachloride (0-5)
Chlordane (0.03)
Chlorobenzene (100.0)
Chloroform (6.0)
Chromium (5.0)
m-Cresol (200.0)
o-cresol (200.0)
p-Cresol (200.0)
Cresol (200.0)
2,4-D (10.0)
1,4-Dichlorobenzene (7.5)
Nitrobenzene (2.0)
1.2-Dichloroethane (0.5)
Pentachlorophenol (100.0)
1,1-Dichioroethylene (0.7)
Pyridine (5.0)
2.4-Dinitrotoluene (0.13)
Selenium (1.0)
Endrin (0.02)
Silver (5.0)
Hexachlorobenzene (0.13)
Tetrachloroethylene (0.7)
Heptachlor (and its hydroxide) (0,048)
Toxaphene (0.5)
Hexachloro-1,3-butadiene (0.5)
Trichloroethylene (0.5)
Hexachloroethane (3.0)
2,4,5-Trichlorophenol (400.0)
Lead (5.0)
2,4:6-Trichlorophenoi (2.0)
Lindane (0.4)
^_.4,5-TP (Silvex) (1.0)
Mercury (0.2)
Vinyl chloride (0.2)
Methoxychlor (10.0)
Methyl ethyl ketone (200.0)
An 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 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
j
Mercury
Plant Available Nitrogen i
(by calculation)
Arsenic
Moybdenum
Potassium
Cadmium
Nickel
Selenium
Calcium
Nitrate -Nitrite Nitrogen
Sodium
Copper
Percent Total Solids
Total Kjeldahl 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.
11

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 H. 13.
The monitoring shall be performed at the frequency specified in the most recently -certified
Attachment A of this permit, and data to verifi7 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 H. 1 in the most recently -certified Attachment A of this permit shall not be
required to comps}, with this monitoring. requirement.
An analysis shall be conducted on reclaimed water generated at the Meuse River WV47P. 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
Mercun�
Plant Available Nitrogen
(by caiculation)
Arsenic
Mo bdenum
Potassium
Cadmium
j Nickel
I Selenium
Calcium
Nitrate -Nitrite Nitrogen
Sodium
Copper
pH
Total K'eldahl Nitrogen
Lead
Phosphorus
Zinc
FMagnesium
6. Laboratory analyses as required by Condition IV. 2., Condition 1V. 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 .I100.
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 I3 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.
12

v. Weather conditions (i.e., sunny, cloudy, raining, etc.):
vi. Soil conditions (i.e., dry, wet, frozen., etc.);
,,ii. 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;
R, 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.
c. 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
13

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
p H
(by calculation)
The annual soils analysis as well as an analysis for the following pollutants shall be conducted
once prior to petrtit 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 -license?
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.
Because a variance has been granted from the setback/buffer required by Condition M. 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 Forma 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 Coiifortu
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.
14

V.
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 take 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 Permittce 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
1V. I., Condition IV. 2., Condition W. 3., Condition 1V. 4., Condition W. 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-DW Q
Information Processing Unit
1617 Mail Sen ice Center
Raleigh, North Carolina 27699-1617
11. Noncompliance Notification:
The Pen ittee 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.
c. 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.
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. Anv 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.
GROUNDWATER REQUIREMENTS
Sampling Requirements:
a. Groundwater monitoring wells MW-13, MW-20, MW-22, MW-41, MW-42, MW-44,
MW-45, MW-46, MW-47, MW-48, MW-49, MW-50, MW-51, MW-52, MW-53, and
MW-54 shall be sampled on this same frequency of every March, July, and November.
15

For each sampling event, samples from each well shall be analyzed for the parameters
listed below:
Arsenic
Mercury
Total_ Ammonia Nitrogen
Cadmium
Molvbdenum
Total Dissolved Solids
Chiorides
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 be 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 VIH 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. Ary
exeeedances of this naturally-occurTing TOC concentration in downgradient wells shall be
subject to the additional sampling and analysis as described in this permit.
d. Any laboratory selected to analyze parameters shall be Division -certified for those
parameters required.
2. Reaortinz/Vocumentation Requirements:
a. For the initial sampling of each converted groundwater monitoring well (i.e., MW-51,
MW-52, MW-53, and MW-54), the Pernttee 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 pen.iit 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.
16

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.nc.us/ or
requested from the address listed above.
Land Annlieation 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 :Wean 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.
AQnlicable Boundan: 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 .0106 (d)(2).
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
c. 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 Requirements:
a. Any additional groundwater quality monitoring, as deemed necessary by the Division,
shall be provided.
VI. INSPECTIONS
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.
17

is
'. 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
terns and conditions of this permit; and may obtain samples of groundwater, surface water, or
leachate.
VII. 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.
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.
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 1 . NCAC 2H .0205 (c)(4).
5. The issuance of this permit does not preclude the Pertnittee 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 NCGO10000, and any
requirements pertaining to wetlands under 15A NCAC 2B .0200 and 15A NCAC .0500.
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.
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.
18

This permit shall not be automatically transferabie. 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 format 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 27"' day of August, 2009.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
e,
fi
or Colden H. Sullins, Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number WQ0001730
19

m
Permit No. WQ0001730
August 27, 2009
ENGINEER'S CERTIFICATION
Partial Final
1, as a duly registered Professional Engineer in the State
of North Carolina, having been authorized to observe (periodically, weekly, full time) the construction of
the project,
Project Name
Location and Counny
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.
20

ATTACHMENT A - Approved Residual Sources
Permit Number: WQ0001730 Version: 2.2
City of Raleigh
City of Raleigh Residuals Land Application Program (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
Neuse River WWTP
Wake
NC0029033
DWQ
503
7000"
Annually
Every 60 days
30
ToWI
i
i
i
1
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 WQ0001730 1 of 1 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)
FieldlZone id Owner
Lessee
county
Latitude
Longitude Net Acreage
dominant Soil
Series
Applicable
Restriction In
Condition !Y. 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
I Duplin
35'07'59"
78"07'46" 4060
Norfolk
GW-A
02-01 lBradshaw, 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
Plains
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-13
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*05,01"
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"05'05"
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-13
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
Total for County
Duplin
764.10
HG-1 Gay, Edith J
Franklin
35"54'40"
78°18'04" 24.04
Varina
GW-B
FIG-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"
78"26'44" 10.16
Vance
GW-B
JEJ-03 While, 5yndor M
Johnston
35"41'31"
18"27'03" 27.37
Vance
GW B
JEJ-04 White, 5yndor M
Johnston
35"4V38"
78'27'22" 24.61
Vance
GW-B
Total for County
Johnston
73.10
01-07 1lobbs, Dellnas
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"1TOO" 6.10
Lynchburg
GW-B
01-09 Flobbs, 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
1
35"04'02"
1
18"12'34" 12.00
Wagram
I
GW A
01-12 Hobbs, Delmas
Sampson
35°03'49"
78'12'40" 30.80
Blanton
GW-A
Permit WCJ0001730 Page 1 of 4 Certification Date: May 22. 2009

l
ATTACHMENT B -Approved Land Application Sites
Permit Dumber. WQ0001730 Version: 2A
City of Raleigh
City of Raleigh Residuals Land Application Program (D)
FieldfZone Id
Owner
Lessee
County
Latitude
Longitude
Net Acreage
Dominant Soft
Series
Applicable
Restriction in Footnotes
Condition IT 4,
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"
7.30
Norfolk
! GW-A
01-15
flobbs, Delmas
Sampson
35"03'39"
78"10'32"
1 39.50
Goldsboro
GW-B
01-17
IHobbs, Delmas
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
35'15'08"
78"18'11"
23.80
Lynchburg
GW-B
Total for Coun
Sampson
387.20
NDS-1
Sauls, Dormant D
Wake
35"40'10"
78'33'46"
4A9
Appling
GW-A
NDS-2
Sauls, Normant D
Wake
35"4011"
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"
78'30'01"
7.60
Appling
GW-A c
NR-005
City Of Raleigh
Wake
35"43'23"
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"
78029'52"
18.30
Durham
GW-A c
NR-008
City Of Raleigh
Wake
35°43'42"
78"29'42"
25-00
Wedowee
Wedowee
GW-A c, d
GW-A c, d
NR-D09
City Of Raleigh
Wake
35'43'04"
78°29'35"
, 3.20
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"
970
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"
11-10
Chewacla
GW-A c
NR-021
City Of Raleigh
Wake
35`4.3'18"
78"28'53"
8.80
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
GW-A C
NR-027
City Of Raleigh
Wake
35'42'65"
78'29'06"
7-30
Wedowee
GW-A c, d
NR-028
City Of Raleigh
Wake
35"42'50"
78'29'12"
30.20
Appling
GW-A c, d
Permit W00001730 Page 2 of 4 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)
Field/Zone Id
owner Lessee
county
Latitude
Longitude
Net Acreage
Dominant Soil
Series
Applicable
Resttictlon In
Condition W. 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"
78°29'27"
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
Iwake
35"42'48"
78'29'48"
10.30
Louisburg
GW-A
c, d
NR-038
City Of Raleigh
iWake
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"
1 78*3910"
25.60
Wedowee
GW-A
c
NR-042
City Of Raleigh
Wake
35°42'49"
78'30'30"
4.20
Appling
GW-A
c
NR-043
City Of Raleigh
Wake
35°42'29"
78*2939"
10.40
Louisburg
GW-A
c, d
NR-044
City Of Raleigh
Wake
35"42'20"
78'29'41"
1540
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
Cit Of Raleigh
Wake
35"42'06"
78"30'00"
9.40
Wedowee
GW-A
c
NR-G60
City Of Raleigh
Wake
35"42'16"
78"28'32"
2093
Chewacla
GW-A
c
NR-061
City Of Raleigh
Wake
35'42'25"
78'28'23"
45.70
Wagrarn
GW-A I
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
3Y41'59"
78°29'51"
2.70
Appling
GW-A
c
NR-074
City Or Raleigh lWake
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"
78"30'24"
_00
e
NR-101
Material Recovery L L C
Wake
35"42'33"
7 8'30'07"
.00
e
NR-102
Material Recovery L L C
Wake
35'42'38"
1
78"30'02"
_00
e
NR-200
City Of Raleigh lvvskp
35°41'51"
78°29'18"
14.00
Wagrarn
GW-A
c
Permit WQ0001730 Page 3 of 4 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
Seile5 nt Soil
Series
Applicable
Restriction In
Condition 1v. 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*42103"
78'29'31"
8,90
Durham
GW-A
C
NR-602
City Of Raleigh
Wake
35'41'58"
78"29'25"
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"
78'2V30"
11.70
Appling
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°30'06"
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"
1210
Appling
GW-A
C
NR-602
City Of Ralei h
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 vary within
the total tobacco allotment area. This entire 511e, subtracting out required setbackslbuffers. 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 year. If residuals are land applied to this site during the calendar year, tlse Permitlee shalt submit
a buffer map [hat depicts exactly which 35.50 net acres of this site have received residuals with the annual report that is required by Condition Ill_ 10. In addition, the Permittee shall take special
care to coordinate with the landowner to comply with Condition II- 18. at ail limes.
b A variance from the setback/buffer requited by Condition ill. 5. j. has been granted for this land application site. This variance shall be allowed as long as sliict compliance with Condition 111.
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 l3 and Class A EQ products) on these land application sites shall he 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 B under such conditions and limitations as it
may deem appmpiiale. Note that a modified Atlachment b to allow and application of residuals on this site 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.
d These land application sites shall be approved for reclaimed water irrigation. The operation of reclaimed water irrigation system shall he conducted in accordance with an itugation 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 air 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 pennil modification
request must be submilled 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 Iarldfill.
Therefore, this site is rio longer available for residuals land 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 Date, May 22, 2009

LO'CKED
G A7=E
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� I -
SRI---511
PROPER;
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JU IM
FIGURE 3E-2
m DTIA: , TRIG
,k
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EE7
F F7,' R YLk 17
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UNE
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PERMIT W20001730
SCALZ.. 1" = 660'
jcmm=
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TO FIELD 3
x
r
J' DEANS!
FOOLS/
TOWN OF
FAlSDN
.! jjHWv. 117
e s 9
2 T T v
9 -�-
THE ACREAGE Wr= THE "TOBACCO .ALOTMENT AE.EA"
CONSISTS DF 17.: NET ACRES. 3.0 ACRES OF THIS ARE-t,
WaL BE USED EACH YEAP FOR TOBACCO PRODUCTION. NO
TOBACCO WILL BE PL NTED FOR A MINUMIUM OF ti 4
MONTHS ON ACREAGE WHICH ILLS BEEN LAND A-T'PLIED TOO.
THE EXACT LOCATION OF PLANTED TOBACCO WILL BE
REPORTED ON A REVISED BUFFER MA" PRODUCED EACH
YEAR AND INCLUDED WITH THE ANNUAL REPORT.
H W` , L03
P �
4.
�f FIELD 2
FIGURE 3E-2
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BUFFER MAP
A,
I � B'rRvri't1'�EtBARM)
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NA
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�A�
TD
HOSBS FARMS (SITE 1)
ti AF(&A
._.- �C �
FIELD 2
X= AM
%gyres
9 EAn ALUDEF SOP.'SM
CITY OF PXXG-rI LAND APPLICAT201
EN G IN �ERIN G
PROGRAM
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PERMIT w 0001730 _.
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HOBBS FARMS (SITE 1)
AM
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e mum Aums 3c
CITY OF RALEIGH LAND LPPIICAT�.
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FIGURE 3E —1 A
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* HOSHS FARMS (SITE 1)
SAMPSON COUNTY FIELDS 7-20
SCALE; 1 2.7 MILES CITY OF R-4LEIGH LAND APPLICATION
ENGINEERING PROGRAM
CCNULTTNTG PERMIT' W 0001730
1� ems.
SERVICE5,I.1Ur�T� TAC/7P—Q3-03 I G—?�Qg7

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FIGURE 3E-2
BUFFER MAP
HOBBS F.UMS (SITE 1)
FIELD 9
CITY OF RALEGH LAND APPLICATION
PROGRAM
PERMIToaoozry3�
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it SR1903
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m > -�
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FIGURE H-2
3UTTER MAP
HOBBS F4RM5 (sm �)
FIELD 10
OF RALEIGH LAND APP1.1"91'1
PROGRAM
PERMTT -W0001730
TAC/18-03-a3 G-SDO$7

FILD it �A
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FmLD 15
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PTRZ ET WQ00017,0
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I
FIELD 17
r
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WET AHZJ
KALE: 1" = 660'
w�
.F
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CONS'LL ING
SERVICE5,L'F'D
FIGURE 3E - 2
BUFFER MAP
ROBES FARMS (STYE 1)
FIELD 17
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9099iM
13

ATTACHMENT — APPROVED SPRAY IRRIGATION OPERATION PLAN
Permit Number: WQ0001730 Certification Date: March 20, 2009
Cite of Raleigh Public Utilities Department (CORPUD)
Neuse River WWTF
Biosolids Farm Spray Irrigation System

SPRAY IRRIGATION OPERATION PLANT
PHASES I, II &-,- 1II
CITY OF RALEIGH PUBLIC UTILITIES DEPARTMENT
(CORPUD )
NEUSE RIOTER WASTEWATER TREATMENT FACILITY
BIOSOLIDS FARM SPRAT' IRRIGATION SYSTEM

SPRAY IRRIGATION OPERATION PLAN
CITY OF RALEIGH PUBLIC UTILITIES DEPARTMETN7
(CORPUD)
NEUSE RI''ER WASTEWATER TREATMENT FACILITY
BIOSOLIDS FARM SPRAY IRRIGATION SYSTEM
I I fill
.\I�: CARO���i f
164 0
���ttti 11t�1ti
07rz
July 24, 2008
PREPARED FOR:
CITY OF RALEIGH PUBLIC L"I'IL= DEPARTMENT
ONE EXCHANGE PLAZA
219 FAYE'TTEVILLE STREET, S= 620
POST OFFICE 6OX 390
DO'S ALD L. S:�FMT, PE
MCKIM & CREED, PA
1730 VARSITY DP V7-, S= 500
RALEIGH NC 27606
OFFICE: [phone]
FAX: [phone]
RALEIGH, NC 27602
OFFICE: [phone]
FAX: [phone]:5
PREPARED BY:
DONALD L. WELLS, LSS
SOIL & ENVIRONMENTAL
CONSULTANTS, PA
11010 RAVEN RIDGE RCAD
R.4LEIGH, NC 2761E
OprFICE: [phone]
FAX: [phone]
RONALD E. SNEED, PhD, PE,
CID, QC, CAIS, CILIA
3405 MAL.IBU DRIVE
RALEIGH, NC 27607-650E
OFFICE: [phone]
FAX: [phone]

Spray Irrigation Operation Plan
City of Raleigh Public Utilities Department (COi.PUD)
Neuse River Wastewater Treatment Facility
Biosolids Farm Spray Irrigation System
Back,ground
The Division of Water Qualitv (DWQ) issued Non -Discharge Permit No. WQ000173C
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 ia-rigation methodology was
approved. The spray irrigation methodology will be approved via a permit
modification.
Pu—urp°se
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.
Spray Irrigation Operation 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 vicinitv 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 limit 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 hvdraulic loadings will be limited to the ET,. very little or no potential will exist
4
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 TA-M assist with management of
applied nutrients.
The approach considered includes integration of the following program aspects:
• Soil - tvnes, characteristics, available water holding capacity
• Crops - specific type, growth cycle, intermediate harvests
• Climate - site specific climatic data ro generate crop specific ETA
Table 1 describes the status of three phases of the Biosoiids Farm Spray irrigation
System as well as specific information about each phase.
Table 1- Neuse River Siosolids Farm Spray Irrigation System
Phase
Spray Zones
Fields }
Wetted Area
Status I
(Acres) I
1
8, 9, 10, 11, 12, 20, �
8, 9, 10, 30 a 31
90.22
Ready for operation
21, ", 23 & 24
lI
1, 3, 3, 4, 5, 6, 7, 12 &
14, 27, 28, 29, 37, 33, 34,
111.87
Under construction
25
35, 36, 37 & 38
III
j 26, 27, 28, 29, 30, 31,
l
43, 44, 45, 46, 70, 319 &
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 regasdin- 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,, hvdrogeological 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 HI fields. Phase 11 soil mapping
Spray Irrigation Operation Plan
Page 2

was conducted by Synagro and Phase II hydrogeological work was conducted by Edwin
Andrews and Associates. Phase III soil mapping was conducted by Soil and
Environmental Consultants, P. A. and Phase HI hydrogeoloQ cal work was conducted by
Eagle Resources.
Figure 1— Carrent Phases of Neuse River Biosolids Spray Irrigation System
Spray irrigation Operation flan
P age 3

The Spray Irrigation Operation Plan could consider three different hydraulic loading
regimes - the traditional approach utilizing soil and drainage characteristics (water
balance); hvdraulic modeling to predict loadings that do not contribute impacts to
groundwater quality standards at the compliance boundaries; or use of a ETc approach
to limit hvdraulic loadings to amounts that ensure a healthy and vigorous crop. See
Figure 2 for a general schematic representation.
Figure'-' -Three Difference Hydraulic Loadi.zig Regimes
The proposed approach utilizing ETA 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 tine 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
1.00
0.80
0.60
0,40
0.20
0.00
i
i
Kc Curve Values for Corn
0 2C 40 61" 30 17- 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.
:'here 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 (ETA). The ETo will be multiplied by the specific crop
coefficient -(Kr) to obtain dhe crop evanotrarispiration (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 sail 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 ton half
of the root zone. During the early stages of the iife 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 analvzed 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 depiction, 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 depietion (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 tihat 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 efficiencil (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 WVVTP, 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 b<< the system designers or installers. The equation to use is:
PR = 96.3 * GPI'/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 there computed with the equation RT (run time) = Gross
Spray Irrigation Operation Plan
Pagel

Application / 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.
Stet, 1 Basic information is tracked for each field and zone. The wetted area is
important to ensure that hvdraulic 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 welt.. 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 (AVID Crop Plant Date Harvest Date
(inAn)
I
31 1
10.63 1
Aoolina 1
0.14 Cam
04+13107
'
31
8.91
A iirta
0.14 Com
04113w,
11.
31
11.84 1
Aoplinq
0.14 Corn
04113/07
11 1
30
a.03 I
Appfing
0.14 Corn
04113i07
12
30
7.32
Helena
0.13 Corn
04/13/07
20
1 a
9.55
Helena
0.13 Corn
04/13107
21
s
7.97
Aoolina
0.14 Corn
04I13)07
22
®
8.36
Anokr)2
0.14 Com
04/13/07
23
9
7.97
Aoniina
I 0.14 Com
04,13107
24
10
9.84 Aoolina I 0.1L I Com
1 04113/07
Step ? For each crop, a Kr value will be determined based upon the current date
and the planting date. The basis of the Kc data is from the growth / crop
coefficient curve as depicted in Figure 3 in the base document.
Kt for Corn
Days
Plant Date Current Date Since K,
Ranting
04/13/08 06/02/08 50 0.867
Spray Irrigation Operallon Plan
Page 9

Step 3 ETa will be determined by the use of the site specific weather station.
Raleign Neuse River Wastewater T reatmenl Facility
Davis lfantaoe Pro 2 Weather Stavor.
Monday, June 02. 2006
Air Tamverature
Relatwe Humidity
Station
Wind Sneed
Solar Radianon
Evapotransoiratron
Date 1 Time (EST)
(E1
(percent)
Pressure (mb)
imoh)
(W/m^2)
(ET,) To1ai (in)
611120081:00
66.-
56
999
2.4
0
0
611=08 2:00
64.3
62
999
4.4
0
0
6/1 /2008 3:00
153.6
63
999
3.3
0
0.01
6/1/2008 4:00
622
69
999
4.3
0
0
6!1120o8 5:00
62.4
67
999
4,1
4.874
0
61112008 6:00
64.5
67
999
11
148.2
0
6/112008 7:00
66.7
64
999
4.1
404.2
0.01
611=088:00
70
68
999
2.B
545.3
0
511/2008 9.00
732
48
999
2.2
721
0,01
6111200810.100
74.8
41
999
0.7
878
0.02
6111200811:00
75.9
37
999
4.3
987
0.02
611,200812:00
7B.3
33
999
7.8
1005
0.02
5111200813:00
80.1
30
998
4.5
1002
0.01
5111200814:00
B1.1
28
997
4.7
925
0,02
611/2008 15:00
B2.3
26
9,37
8.8
796
0.03
6111200E 16:00
82.9
26
996
BA
620.1
0.02
6111200817:00
82.4
26
996
7.2
424.1
0.02
5/11200818:00
80.4
30
997
4.7
223.3
0.02
6111200819:00
78.1
38
997
0.9
24.76
0.01
611/2006 20:00
70
65
996
0.7
0
0
611 /2008 21:00
66.8
83
998
0.6
D
0.01
6/112008 22:00
64.7
72
999
0.4
0
0
6I1 f2008 23:00
64.3
70
999
0
0
0
6/172006 23:59
62.6
76
999
C.3
0
0
06101I08
Total ET,
0.23
Step Q ETr 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 proggrarn. For annual crops, crop factor
and crop water use data change with the stage of growth. For grass
crops, oniv water use data changes with time of year, i.e. warmer
temperature, more ETc.
ET�
Date Crop ETo Ke ETC
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.
PHASEI
Precmlta[ton ,Data
Plant Avaimme Vaate,
ZONE
FIELD
WET
AREA tac)
Predurnina t
soil
Coop
Rainfall`
Imgtrtlon'
Total
Prampitatlon
Avella4re
Water
(AW1
I Mnt
Root Zatw
Death on)
Plen:
Avallanle
taster [PALV}
Cturent Plan[
AGLVT*lelast
gam4e(CPAWater
B
1 31
1 2.Ei3
A22I1n0
Gorr
0.00
G.00 I
0.00
0.1-
14.0 1
1.95
1.76
3'
0.91
Aoohno
Cam
OAO
Q,CO
0.00
0.14
14C
1.9c
+-.76
10
31
11.B4
A aline
Corn
0.00
0.00
0.00
0.14
ii
1.9E
1.7E
1'
1 3 0
BA3
I A okin
Corn
0.00
0,00 1
0.00
0.14
1 14.c 1
1.9E
1 1.76
12
1 30
7.32
1 HeVena
Corn
`2
0.00
0.00
0.13
1a.0
1.62
1.62
20
B
4.5=
1elera
car,
0.00
0. Q
Q.00
.13
14.0
1.82
1,62
21
fl
7.97
A 1n
Cam
0.00
0,00 1
0.00
0.16
l 14.0
1,96
1.76
22
8
6.3E
A=lrne
Corr-
0.00
0.00
Q 00
0.14
14.0
1.9fi
: 7E
23
9
7.97
A me
Corn
0.00
Of
0.00
0.14
14.6
1.9E
1.7E
2e
'i 4
9.6a
A 1
Carr
0-00
I 0
O-{70
0.1a
t4.6
1 1-96
i 1.7E
Notes'
- Rairrfal find es) as measured from off -site r snc station.
2 • Arnouni recanny Kfl_ ie-1- ivxnasi.
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
Allowaole Deoiation
ZONE
FIELD
WET
AREA
(ac)
Predominant
Soil
Crop
Management
Allowable
Depletion
(MAD)
Allowable
Depletion
(AD) (in)
Sol[ Moslture
Remaining at
MAD (in)
In'Igatioin
Amount
(in)
8
31 1
10.63
Dlino I
Corn
57°1. 1
i.12
0.84 1
1.16
9
31 1
8,91
Aomillno
Corn
57%
1.12
0.84 t
1.16
10 1
3-1 1
11.6s
A001im
Cam
57%
1.12
0.84
1.16
11 1
30 1
8.02
1 Aooltno
I Corn
570% 1
1.12
0.81-
1.16
12
1 30 1
7.32
1 Helena
Corn
57%
1-U
0.77
1 A8
20
8
9,55
Helens
Com
57%
1-03
0.77
1.08
21
8
T97
Appling
Corn
57%
1.12
0.84
1.16
22
8
8.36
A nikn
Corn
57%
1,12
0.84
1.16
23
9
7,97
AgoVin
Corn
57%
1.12
0.84
1.16
24
10
9,64
Ao lino
Corn
57%
1 1.12
0.84
1.1fi
Notes:
1 - When CPAW is less than or equal to the Soil Mositure Remaining at MAD, irrigation is neeoecf. In this particular
example, assuming no imgation or no raintali, and similar ET, of 0.20; Irrigation would to 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 boss irrigation
required per irrigation zorie. 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 I
WET Fiowrate
Z014E FIELD AREA per Zone
(ac m
AppGross
Etii
Ifi scaticiency
Net Gross Appiication
Irrigation Irrigation Precipitation Run Time Amount
(in) in (In1hr) (hrj aahons
8
31
10,53 ,
1,976
a1%
1.90 1
1.16 0.41
4.6 1
548.870
5
31
8.91
1,952
51%
1.9c
1.16 0.48
3.9
480,060
10
3`•
11.84
1,901
61%
1.90
1.16 0.35 1
5.4 1
611,347
11
30
8,03
', 216
61°ro
1.90
1.16 0.33
5.7
414.622
12
1 30
7.32
1 1.272
1 61%
1.77
1.08 0.36
4.5
351A95
20
8
m5
1.509
1 611/
1.77
1.08 0.35
5.1
459,098
21
8
7.97
1.716
61%
1.90
I 1.16 0.48
4,0
d11,524
22
8
8.36
2.023
61%
1.90
1.16 0.53
3,6
431.661
23
9
7.97
1,342
1 61%
1.90
1.16 0.37
5,;
411,524
24
10
9.6d
1,546
1 61%
1 1,90
1.16 0.35
5.4
497,752
Actuai applied volumes will be properly documented and recorded for inclusion in
DWQ monthly monitoring reports (NDMRs). These hydraulic loadings in conjunction
with nutrient nlonitoxing data from the facility (NPDES DMR) will be used to track and
document actual nutrient contributions to the farm fields. CORPUD currentiv uses a
rigorous software package that tracks nutrient loadings associated with the biosolids
program. CORPUD's nutrient manageinent 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
E.............................................................
Application efficiency
ET... ........................................................
Evapotranspiration needs of a specific crop
ETo..........................................................
Reference evapotranspiration
FC...........................................................
Field capacity
GP or PR ............................................... Gross precipitation or precipitation rate
!RFo�......................................................
Gross irrigation
IM..........................................................
Irrigation interval
11*.........................................................
Net irrigation
K............................................................
Specific crop factor
I'vIAD...................................................... Management allowable depletion
PAW ...................................................... Plant available water
PR ...........................................................
Precipitation rate
PWF.......................................................
Permanent wilting percentage
RAW ......................................................
Readily available water
RT...........................................................
Run time
RZ........................................................... Root zone
AD = (PAW) - (MAD/100)
AW = FC - PWP
CPAW=PAW- ETA -R+I
ETc = ET. X Kc.
IRS.=Me, /&
GP = PR = (96.3) ` (GPM) / (A [€t=])
PAW = (AW) (RZ)
RT = (Il g,,..) ; (PR)
Spray Irrigation Operation Plan
Page 13