WQ0023896_Final Permit_20070212

C? Michael F. Easley, Governor
����� William G. Ross Jr., Secretary
6J S~ North Carolina Department of Environment and Natural Resources
p ^� Alan W. Klimek, P.E. Director
Division of Water Quality
February 12, 2007
DAVID R. PERRY
INTERIM VICE CHANCELLOR FOR FINANCE. AND ADMINISTRATION
THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL
CB #1000, 302A SOUTH BUILDING
CHAPEL HILL, NORTH CARoLiNA 27599-1000
Subject: Permit No. WQ0023896
UNC-Research Resources Facility
Wastewater Surface Irrigation
Orange County
Dear Mr. Perry:
In accordance with your modification request received December 13, 2006, and subsequent
additional information received January 10, 2007 and February 9, 2007, we are forwarding herewith
Permit No. WQ0023896 dated February 12, 2007, to The University of North Carolina at Chapel Hill for
the construction and continued operation of the subject wastewater treatment and surface irrigation
facilities. The submitted modification request is to add an additional septic tank, along with packed bed
media filters with a recirculating tank. The modification also includes the addition of ultraviolet
disinfection, a second lined effluent lagoon, a well backwash system, and the abandonment of 0.06 acres
of spray field.
This permit shall be effective from the date of issuance until September 30, 2011, shall void
Permit No. WQ0023896 issued October 6, 2006, and shall be subject to the conditions and limitations as
specified therein. PIease pay particular attention to the monitoring requirements in this permit. Failure to
establish an adequate system for collecting and maintaining the required operational information will
result in future compliance problems.
Please pay particular attention to Condition I. I., which requires the Permittee to make the
necessary changes to the current permit in the event the Division of Land Resources requires changes to
the proposed effluent storage lagoon based upon their Dam Safety Permit. In addition, please note that
the Operation and Maintenance Plan in Condition I.2. shall be submitted with the Engineering
Certification required in Condition 1.3. Condition I.S. also requires that the Permittee submit updated
groundwater monitoring well network maps.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the
right to request an adjudicatory hearing upon written request within thirty (30) days following receipt of
this permit. This request must be in the form of a written petition, conforming to Chapter 150B of the
North Carolina General Statutes, and filed with the Office of Administrative Hearings, 6714 Mail Service
Center, Raleigh, NC 27699-6714. Unless such demands are made this permit shall be final and binding.
NorthCarolina
Naturally
Aquifer Protection Section 1636 Mail Service Center Raleigh, NC 27699-1636 Phone [phone] Customer Service
Internet: www.nowaterquality.org 2728 Capital Boulevard Raleigh, NC 27604 FAX [phone]
An Equal Opportunity/Affirmative Action Employer— 50% Recycled/10% Post Consumer Paper

One set of approved plans and specifications is being forwarded to you. If you need additional
information concerning this matter, please contact Nathaniel Thornburg at [phone] or
[e-mail].
del ,
W. Klimek, P.E.
cc: Orange County Health Department
Raleigh Regional Office, Aquifer Protection Section
John F. Phillips, PE — Diehl & Phillips, P.A.
Technical Assistance and Certification Unit
APS Central Files
LAU Files
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NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
RALEIGH
SURFACE IRRIGATION SYSTEM PERMIT
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as
amended, and other applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
The University of North Carolina at Chapel Hill
Orange County
FOR THE
operation of a 3,556 gallon per day (GPD) surface irrigation treatment and disposal facility consisting of:
the construction and operation of: an 8,000 gallon baffled septic tank with an effluent filter; a septic tank
effluent lift station with two (2) 20 gallon per minute (GPM) 0.5 horsepower (hp) pumps rated at 23 feet
of total dynamic head (TDH) and audible/visual high water alarms; a 4,000 gallon recirculation tank with
two (2) 55 GPM 0.5 hp pumps rated at 33 feet of TDH; two (2) AdvanTex AX100 textile media packed
bed filters; ultraviolet (UV) disinfection with two (2) lamps; a 60' v-trapezoidal flume with ultrasonic
level sensing; a 171,500 gallon lined effluent storage lagoon with a 80 GPM 1 hp floating transfer pump
rated at 25 feet TDH; the
construction and operation of approximately 350 linear feet of 6-inch lateral piping and all associated
valves and appurtenances; the
construction and operation of the following well filter components generating backwash to the treatment
plant: a 3,240 gallon hydro -pneumatic storage tank; a 2,250 gallon manganese oxidation tank; a
potassium permanganate tank; an 86 gallon diaphragm tank; three (3) manganese filters; a 4,000 gallon
filter backwash tank with two (2) 20 GPM 0.5 hp pumps each rated at 23 feet of TDH; the
abandonment of: a 12,000 gallon baffled septic tank; a dosing tank; a gravity distribution box; an
intermittent sand filter bed; a five (5) foot diameter wet well housing duplex float operated submersible
pumps rated at 115 GPM; 0.06 acres of the existing spray irrigation field and all associated piping, valves
and appurtenances; and the
continued operation of: a 75,843 gallon lined effluent storage lagoon; and 2.12 acres of spray field
composed of 16 sprinkler heads
to serve the UNC — Research Resources Facility, with no discharge of wastes to the surface waters,
pursuant to the application received December 13, 2006, and subsequent additional information received
by the Division of Water Quality (Division), and in conformity with the project plan, specifications, and
other supporting data subsequently filed and approved by the Department of Environment and Natural
Resources and considered a part of this permit.
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This permit shall be effective from the date of issuance until September 30, 2011, shall void Permit
No. WQ0023896 issued October 6, 2006, and shall be subject to the following specified conditions and
limitations:
I. SCHEDULES
1. Prior to construction of the proposed lined effluent storage lagoon, the Division of Water Quality
shall approve any necessary changes to the proposed lined effluent storage lagoon as required from a
Darn Safety permit issued by the Division of Land Resources.
2. In accordance with 15A NCAC 2T .0507, the Permittee shall submit an Operation and Maintenance
(O & M) Plan for the wastewater treatment and irrigation system. This O & M plan shall include at a
minimum:
a. Describe the operation of the system in sufficient detail to show what operations are necessary for
the system to function and by whom the functions are to be conducted.
b. Describe anticipated maintenance of the system.
c. Include provisions for safety measures including restriction of access to the site and equipment.
d. Include spill control provisions such as response to upsets and bypasses including control,
containment and remediation, as well as contact information for plant personnel, emergency
responders and regulatory agencies.
The O&M plan shall be submitted in conjunction with the engineering certification required in
Condition I.3.
Upon completion of construction and prior to operation of this permitted facility, a certification (see
attached form) must be received from a professional engineer certifying that the permitted facility has
been installed in accordance with this permit, the approved plans and specifications, and other
supporting materials including the location of all monitoring wells as applicable. If this project is to
be completed in phases and partially certified,youu shall retain the responsibility to track further
construction approved under the same permit, and shall provide a final certificate of completion once
the entire_ project has been completed. Mail the Certification to the Aquifer Protection Section,
Division of Water Quality, 1636 Mail Service Center, Raleigh, NC 27699-1636.
4. 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 facilities 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.
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5. Within sixty (60) days of permit issuance, the permittee shall submit two original copies of a scaled
site map (scale no greater than V=100'); however, special provisions may be granted upon prior
approval for large properties. The map(s) must include the following information:
a. The location and identity of each monitoring well.
b. The location of major components of the waste disposal system.
c. The location of property boundaries within 500 feet of the disposal area(s).
d. The latitude and longitude of the established horizontal control monument.
e. The elevation of the top of the well casing (which shall be known as the "measuring point")
relative to a common datum.
f. The depth of water below the measuring point at the time the measuring point is established.
g. The location of Review and Compliance Boundaries.
h. The date the map is prepared and/or revised.
Control monuments shall be installed in such a manner and made of such materials that the
monument will not be destroyed due to activities that may take place on the property. The maps and
any supporting documentation shall be sent to the N.C. Division of Water Quality, Aquifer Protection
Section, 1636 Mail Service Center, Raleigh, N.C. 27699-1636. The permittee is responsible for the
geographic accuracy of any map submitted, however produced.
6. If not already installed, a waste -level gauge to monitor waste levels in the existing lined effluent
storage lagoon shall be installed within 60 days of issuance of this permit. A waste -level gauge to
monitor waste levels in the proposed lined effluent storage lagoon shall be installed prior to operation.
7. No later than six (6) months prior to the expiration of this permit, the Permittee shall request renewal
of this permit on official Division form(s). Upon receipt of the request, the Division will review the
adequacy of the facilities described therein, and if warranted, will extend the permit for such period of
time and under such conditions and limitations as it may deem appropriate.
II. PERFORMANCE STANDARDS
The surface irrigation facilities shall be effectively maintained and operated at all times so that there
is no discharge to the surface waters, nor any contravention of groundwater or surface water
standards. In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions or failure of the irrigation area to adequately assimilate the wastewater, the
Permittee shall take immediate corrective actions including those actions that may be required by the
Division, such as the construction of additional or replacement wastewater treatment and disposal
facilities.
2. The issuance of this permit shall not relieve the Permittee of the responsibility for damages to ground
or surface waters resulting from the operation of this facility.
All wells that are constructed for purposes of groundwater monitoring shall be constructed in
accordance with 15A NCAC 02C .0108 (Standards of Construction for Wells Other than Water
Supply) and any other state and local laws and regulations pertaining to well construction.
4. Effluent limitations shall not exceed those specified in Attachment A.
5. Application rate(s), whether hydraulic, nutrient, or other pollutant shall not exceed those specified in
Attachment B.
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6. The COMPLIANCE BOUNDARY for the disposal system is specified by rules in 15A NCAC 02L,
Groundwater Classifications and Standards. This disposal system was individually permitted on or
after December 30, 1983; therefore, the Compliance Boundary is established at either 250 feet from
the waste disposal area, or 50 feet within the property boundary, whichever is closest to the waste
disposal area. An exceedance of Groundwater Standards at or beyond the Compliance Boundary is
subject to remediation action according to 15A NCAC 02L .0106(d)(2) as well as enforcement
actions in accordance with North Carolina General Statute 143-215.6A through 143-215.6C.
7. The Permittee shall apply for a permit modification prior to any sale or transfer of property that
affects a compliance boundary to establish a new compliance boundary.
8_ In accordance with 15A NCAC 02L .0107(d), no wells, other than monitoring wells, shall be
constructed within the compliance boundary except as provided by 15A NCAC 02L .0107(g).
9. The REVIEW BOUNDARY is established around the disposal systems midway between the
Compliance Boundary and the perimeter of the waste disposal area. Any exceedance of standards at
the Review Boundary shall require action in accordance with 15A NCAC 2L .0106.
10. The facilities permitted herein must be constructed according to the following setbacks:
a. The setbacks for Irrigation sites shall be as follows (all distances in feet):
i. Any habitable residence or place of public assembly under separate ownership: 400
ii. Any habitable residence or place of public assembly owned by the permittee: 200
iii. Any private or public water supply source:
100
iv. Surface waters:
100
v. Groundwater lowering ditches:
100
vi. Surface water diversions:
25
vii. Any well with exception of monitoring wells:
100
viii.Any property line:
150
ix. Top of slope of embankments or cuts of two feet or more in vertical height:
15
x. Any water line from a disposal system:
10
xi. Subsurface groundwater lowering drainage systems:
100
xii. Any swimming pool:
100
xiii. Public right of way:
50
xiv. Nitrification field:
20
xv. Any building foundation or basement:
i5
b. The setbacks for Treatment and storage units shall be as follows (all distances in feet):
i. Any habitable residence or place of public assembly under separate ownership: 100
ii. Any private or public water supply source: 100
iii. Surface waters: 50
iv. Any well with exception of monitoring wells: 100
v. Any property line: 50
11. The disposal system shall be connected to a rain or moisture sensor that shall indicate when
wastewater application is not appropriate in accordance with Condition III(4) and 11I(5) of this permit.
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M. OPERATION AND MAINTENANCE REOIlIREMENTS
1. The facilities shall be properly maintained and operated at all times. The facilities shall be effectively
maintained and operated as a non -discharge system to prevent the discharge of any wastewater
resulting from the operation of this facility. The Permittee shall maintain an Operation and
Maintenance Plan pursuant to 15A NCAC 02T .0507 including operational functions, maintenance
schedules, safety measures, and a spill response plan.
2. Upon classification of the wastewater treatment and irrigation facilities by the Water Pollution
Control System Operators Certification Commission (WPCSOCC), the Permittee shall designate and
employ a certified operator to be in responsible charge (ORC) and one or more certified operator(s) to
be back-up ORC(s) of the facilities in accordance with 15A NCAC 08G .0200. The ORC shall visit
the facilities in accordance with 15A NCAC 08G .0200 or as specified in this permit and shall comply
with all other conditions specified in these rules.
3. A suitable year round vegetative cover shall be maintained such that crop health is'optimized, allows
for even distribution of effluent, and allows inspection of the irrigation system.
4. Adequate measures shall be taken to prevent wastewater ponding or runoff from the irrigation field.
5. Irrigation shall not be performed during inclement weather or when the ground is in a condition that
will cause ponding or runoff.
6. All waste application equipment must be tested and calibrated at least once per year. Records of the
calibration must be maintained for five years.
7. No type of wastewater other than that from the UNC — Research Resources Facility shall be irrigated
onto the irrigation area.
8. No traffic or equipment shall be allowed on the disposal area except while installation occurs or while
normal maintenance is being performed.
9. Public access to the land application sites shall be controlled. Such controls shall include fencing
around the wastewater treatment plant, effluent storage lagoons and spray irrigation field.
10. The residuals generated from these treatment facilities must be disposed / utilized in accordance with
15A NCAC 02T .1100. The Permittee shall maintain a Residual Management Plan pursuant to 15A
NCAC 02T .0508.
11. Diversion or bypassing of the untreated wastewater from the treatment facilities is prohibited.
12. Freeboard in the two (2) lined effluent storage lagoons shall not be less than two feet at any time.
13. Waste -level gauges to monitor waste levels in the two (2) lined effluent storage lagoons shall be
provided. These gauges shall have readily visible permanent markings indicating the maximum
liquid level at the top of the temporary liquid storage volume, minimum liquid level at the bottom of
the temporary liquid storage volume, and the lowest point on top of the dam elevations. Caution must
be taken not to damage the integrity of the liner when installing the gauges.
14. A protective vegetative cover shall be established and maintained on all earthen basin embankments
(outside toe of embankment to maximum allowable temporary storage elevation on the inside of the
embankment), berms, pipe runs, erosion control areas, and surface water diversions. Trees, shrubs,
and other woody vegetation shall not be allowed to grow on the earthen basin dikes or embankments.
Earthen basin embankment areas shall be kept mowed or otherwise controlled and accessible.
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IV. MONITORING AND REPORTING REQUIREMENTS
1. Any monitoring (including groundwater, surface water, soil or plant tissue analyses) deemed
necessary by the Division to ensure surface and ground water protection will be established and an
acceptable sampling reporting schedule shall be followed.
2. Flow through the treatment facility shall be continuously monitored and daily average flow values
shall be reported on Form NDMR. Flow may be estimated from water use records provided water
use is metered. Daily average values shall be calculated by dividing monthly flow volume by the
number of days in the month.
3. All laboratory analyses for effluent, ground waters, or surface waters shall be made by a laboratory
certified by the Division for the required parameter(s) under 15A NCAC 02H .0800.
4. The effluent from the subject facilities shall be monitored by the Permittee at a point after disinfection
and prior to storage at the frequency(ies) for the parameter(s) specified in Attachment A.
The Permittee tracking the amount of wastewater disposed shall maintain adequate records. These
records shall include, but are not necessarily limited to, the following information:
a. Date of irrigation.,
b. Volume of wastewater irrigated,
c. Field irrigated,
d. Length of time field is irrigated,
e. Continuous weekly, monthly, and year-to-date hydraulic (inches/acre) loadings for each field,
f. Continuous monthly and year-to-date loadings for any non -hydraulic parameter specifically
limited in Attachment B for each field,
g. Weather conditions, and
h. Maintenance of cover crops.
6. Freeboard (waste level to the lowest elevation on the top of the embankment) in the two (2) lined
effluent storage lagoons shall be recorded weekly.
7. Monitor wells shall be sampled after construction and within 3 months prior to initiating waste
disposal operations. Monitor wells shall be sampled thereafter at the frequencies and for the
parameters specified in Attachment C. All mapping, well construction forms, well abandonment
forms, and monitoring data shall refer to the permit number and the well nomenclature as provided in
Attachment C and Figure 1.
8. For the initial sampling of the well as specified elsewhere in the permit, the permittee shall submit a
copy of the GW-1 Form (Well Construction Record) that lists this permit number and the appropriate
monitoring well identification number with the Compliance Monitoring Form (GW-59) for that well.
Initial Compliance Monitoring Forms that do not include copies of the GW-1 form are incomplete
and may be returned to the pem- ittee without being processed.
9. Two (2) copies of the results of the sampling and analysis must be received on Form GW-59
(Groundwater Quality Monitoring: Compliance Report Form), along with attached copies of
laboratory analyses, by the Division of Water Quality, Information Processing Unit, 1617 Mail
Service Center, Raleigh, North Carolina 27699-1617 on or before the last working day of the month
following the sampling month. Form GW-59 shall include the number of this permit and the
appropriate well identification number. One Form GW-59a certification form shall be provided for
each set of sampling results submitted.
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10. Three (3) copies of all monitoring data [as specified in Conditions IV(2) and IV(4)] on Form NDMR
and three (3) copies of all operation and disposal records [as specified in Conditions IV(5) and IV(6)]
on Form NDAR-1 shall be submitted on or before the last day of the following month. If no activities
occurred during the monitoring month, monitoring reports are still required documenting the absence
of the activity. All information shall be submitted to the following address:
Division of Water Quality
Information Processing Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
11. An annual representative soils analysis (Standard Soil Fertility Analysis) shall be conducted on each
irrigation field and the results maintained on file by the Permittee for a minimum of five years. The
Standard Soil Fertility Analysis shall include, but is not necessarily limited to, the following
parameters:
Acidity
Manganese
Potassium
Calcium
Percent Humic Matter
Sodium
Copper
pH
Zinc
Magnesium
Base Saturation (by calculation)
Phosphorus
Cation Exchange Capacity
Exchangeable Sodium Percentage
12. Noncompliance Notification:
The Perrnittee shall report by telephone to the Raleigh Regional Office, telephone number (919) 791-
4200, as soon as possible, but in no case more than 24 hours or on the next working day following the
occurrence or first knowledge of the occurrence of any of the following:
a. Any occurrence at the wastewater treatment facility which results in the treatment of significant
amounts of wastes which are abnormal in quantity or characteristic, such as the dumping of the
contents of a sludge digester; the known passage of a slug of hazardous substance through the
facility; or any other unusual circumstances including ponding in the irrigation field or runoff
from the irrigation fields.
b. Any process unit failure, due to known or unknown reasons, that render the facility incapable of
adequate wastewater treatment such as mechanical or electrical failures of pumps, aerators,
compressors, etc.
c. Any failure of disposal system resulting in a by-pass directly to receiving waters.
d. Any time that self -monitoring information indicates that the facility has gone out of compliance
with its permit limitations including, but not limited to, freeboard measurements, effluent
limitations, exceedances of groundwater standards, or overloading of any field.
For any emergency that requires immediate reporting (e.g., discharges to surface waters, imminent
failure of a storage structure, etc.) outside normal business hours must be reported to the Division's
Emergency Response personnel at telephone number [phone], [phone], or (919) 733-
3300. Persons reporting such occurrences by telephone shall also file a written report in letter form
within five (5) days following first knowledge of the occurrence. This report must outline the actions
taken or proposed to be taken to ensure that the problem does not recur.
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V. INSPECTIONS
1. Adequate inspection and maintenance shall be provided by the Permittee to ensure proper operation
of the subject facilities.
2. The Permittee or his designee shall inspect the wastewater treatment and disposal facilities to prevent
malfunctions and deterioration, operator errors and discharges which may cause or lead to the release
of wastes to the environment, a threat to human health, or a nuisance. The Permittee shall keep 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 upon request to the Division or other permitting authority.
3. 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 disposal site or
facility at any reasonable time for the purpose of determining compliance with this permit; may
inspect or copy any records that must be maintained under the terms and conditions of this permit,
and may obtain samples of groundwater, surface water, or leachate.
VI. GENERAL CONDITIONS
Failure to abide by the conditions and limitations contained in this permit may subject the Pem-ittee
to an enforcement action by the Division in accordance with North Carolina General Statute 143-
215.6A to 143-215.6C.
2. This permit shall become voidable unless the facilities are constructed in accordance with the
conditions of this permit, the approved plans and specifications, and other supporting data.
3. This permit is effective only with respect to the nature and volume of wastes described in the
application and other supporting data. No variances to applicable rules governing the construction
and / or operation of the permitted facilities are granted unless specifically requested and granted in
this permit.
4. The issuance of this permit does not exempt the Permittee from complying with any and all statutes,
rules, regulations, or ordinances, which may be imposed by other government agencies (local, state,
and federal) that have jurisdiction. Of particular concern to the Division are applicable river buffer
rules in 15A NCAC 02B .0200, erosion and sedimentation control requirements in 15A NCAC
Chapter 4 and under the Division's General Permit NCGO10000, and any requirements pertaining to
wetlands under 15A NCAC 02B .0200 and 02H .0500.
5. In the event there is a desire for the facilities to change ownership, or there is a name change of time
Permittee, a formal permit request must be submitted to the Division on official Division form(s),
documentation from the parties involved, and other supporting materials as may be appropriate. The
approval of this request will be considered on its merits and may or may not be approved. The
Permittee of record shall remain fully responsible for compliance until a permit is issued to the new
owner.
6. The Permittee shall retain a set of approved plans and specifications for the life of the facilities
permitted herein.
7. The Permittee shall maintain this permit until all permitted facilities herein are properly closed or
permitted under another permit issued by the appropriate permitting authority.
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8. The Perniittee must pay the annual fee within thirty (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
pursuant to 15A NCAC 02T .0105(e).
Permit issued this t* 12" day of February 2007
NORTH C OLINA E IRONMENTAL MANAGEMENT COMMISSION
14 lan W. Klimek, P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number WQ0023896
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Permit No. WQ0023896
February 12, 2007
ENGINEER'S CERTIFICATION
Partial Final
I, , as a duly registered Professional Engineer in the State
of North Carolina, having been authorized to observe (periodically, weekly, full time) the construction of
the project,
Project Name
Location and County
for the Permittee hereby state that, to the best of my abilities, due care and diligence was used in the
observation of the construction such that the construction was observed to be built within substantial
compliance and intent of this permit, the approved plans and specifications, and other supporting
materials.
Signature
Date
Registration No.
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ATTACHMENT A - LIMITATIONS AND MONITORING REQUIREMENTS Permit Number: WQ0023896 Version: 1.2
PPI 001 WWTF Effluent — Pre Construction (Sampling regimen prior to completion of the permitted modification)
EFFLUENT CHARACTERISTICS
EFFLUENT LIMITS
MONITORING REQUIREMENTS
Parameter Description - PCS Code i
Monthly Average
Weekly Average
Daily Maximum
Measurement
Frequency
Sample
Type
BOD, 5-Day (20 Deg. C) — 00310
3 X Year'
Grab
Calcium, Total (as Ca) — 00916
3 X Year'
Grab
Coliform, Fecal MF, M-FC Broth, 44.5C — 31616 (geometric mean)
3 X Year'
Grab
Flow, in Conduit or thru Treatment Plant — 50050
2,340
GPD
Monthly
Calculated
Magnesium, Total (as Mg) — 00927
3 X Year
Grab
Nitrite plus Nitrate, Total (as N) — 00630
3 X Year
Grab
Nitrogen, Ammonia Total (as N) — 00610
3 X Year
Grab
Nitrogen, Kjeldahl Total (as N) — 00625
3 X Year'
Grab
pH -- 00400
3 X Year
Grab
Phosphorus, Total (as P) — 00665
3 X Year
Grab
Sodium Adsorption Ratio — 00931
3 X Year
Calculated
Sodium, Total (as Na) — 00929
3 X Year'
Grab
Solids, Total Suspended — 00530
3 X Year'
Grab
1. 3 X Year = March, July & NovembeT

PPI 002 WWTF Effluent -- Post Construction (Sampling regimen post completion of the permitted modification)
EFFLUENT CHARACTERISTICS
EFFLUENT LIMITS
MONITORING REQUIREMENTS
Parameter Description - PCS Code
Monthly Average
Weekly Average
Daily Maximum
Measurement
Frequency
Sample
'Type
BOD, 5-Day (20 Deg_ C) — 00310
30
mg/l
3 X Year'
Grab
Chloride (as Cl) — 00940
3 X Year'
Grab
Coliform, Fecal MF, M-FC Broth, 44.5C — 31616 (geometric mean)
200
#I100M
3 X Year'
Grab
Flow, in Conduit or thru Treatment Plant — 50050
3,556
GPD
Monthly
Calculated
Nitrogen, Ammonia Total (as N) — 00610
15
mg/I
3 X Year'
Grab
Nitrogen, Nitrate Total (as N) — 00620
3 X Year `
Grab
Nitrogen, Kjeldahl Total (as N)-00625
3 X Year'
Grab
pH — 00400
6-9
s.u_
Weekly
Grab
Solids, Total Dissolved — 70300
3 X Year'
Grab
Solids, Total Suspended — 00530
30
mg/1
3 X Year'
Grab
3 X Year = March, July & November

ATTACHMENT B - APPROVED LAND APPLICATION SITES AND LIMITATIONS Permit Number: WQ0023896 Version: 1.2
University of North Carolina at Chapel Hill — UNC Research Resources Facility
FIELD INFORMATION
APPLICATION LIMITATIONS
Field/
Zone Id
Owner
County
Latitude
Longitude
Net
Acreage
Dominant
Soil Series
Parameter
Rate
Yearly
Max
Units
A
University of North Carolina at
Chapel Hill
Orange
35054' 14"
-79014' 22"
2.12
Georgeville
01284 - Application Surface Irrigation
0.75
24.09
inches
Total
2.12
Attachment B Page 1 of 2

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Attachment B Page 2 of 2

ATTACHMENT C — GROUNDWATER MONITORING AND LIMITATIONS
Monitoring wells: MW-1 & MW-2
Permit Number: WQ0023896 Version: 1.2
GROUNDWATER CHARACTERISTICS
GROUNDWATER STANDARDS
MONITORING REQUIREMENTS
Parameter Description - Parameter Code
Daily Maximum
Frequency Measurement
Sample Type
Footnotes
Carbon, Tot Organic (TOC) - 00680
3 x year
Grab
1
Chloride (as Cl) - 00940
250
mg/l
3 x year
Grab
1
Coliform, Fecal MF - 31616
1
##/100ml
3 x year
Grab
1
Nitrogen, Ammonia Total (as N) - 00610
3 x year
Grab
1
Nitrogen, Nitrate Total (as N) - 00620
10
mg/l
3 x year
Grab
I
pH - 00400
6.5-8.5
S.U.
3 x year
Grab
1,2
Phosphorus, Total (as P) - 00665
3 x year
Grab
1
Solids, Total Dissolved- 180 Deg C - 70300
500
mg/1
3 x year
Grab
I
Volatile Organic Compounds - 78732
1 x year
Grab
1,4
Water level, distance from measuring point - 92546
3 x year
Calculated
1, 2, 3
1. 3 X year monitoring shall be conducted in March, July & November.
2. The measurement of water levels shall be made prior to purging the wells. The depth to water in each well shall be measured from the surveyed point on the top of the casing. The measurement
of pH shall be made after purging and prior to sampling for the remaining parameters.
3. The measuring points (top of well easing) of all monitoring wells shall be surveyed to provide the relative elevation of the measuring point for each monitoring well. The measuring points (top
of casing) of all monitoring wells shall be surveyed relative to a common datum.
4. Volatile Organic Compounds (VOC) - In November only, analyze by one of the following methods:
a. Standard Method 623OD, PQL at 0.5 pg/L or less
b. Standard Method 6210D, PQL at 0.5 pg/L or less
c. EPA Method 8021, Low Concentration, PQL at 0.5 pg/L or less
d. EPA Method 8260, LAW Concentration, PQL at 0.5 pg/L or less
e. Another method with prior approval by the Aquifer Protection Section Chief
Any method used must meet the following qualifications:
a. A laboratory must be DWQ certified to run any method used.
b. The method used must, at a minimum, include all the constituents listed in Table Vill of Standard Method 6230D.
c. The method used must provide a PQL of 0.5 µg/L or less that must be supported by laboratory proficiency studies as required by the DWQ Laboratory Certification Unit.
Any constituents detected above the MDL but below the PQL of 0.5 µg/L must be qualified (estimated) and reported.
5_ if any volatile organic compounds (VOC) are detected as a result of monitoring as provided in Attachment C, then the Raleigh Regional Office Aquifer Protection Supervisor, telephone number
[phone], must be contacted immediately for further instructions regarding any additional follow-up analyses required.
6. If TOC concentrations greater than 10 mg/1 are detected in any downgradient monitoring well, additional sampling and analysis must be conducted to identify the individual constituents
comprising this TOC concentration. If the TOC concentration as measured in the background monitor well exceeds 10 mg/l, this concentration will be taken to represent the naturally occurring
TOC concentration. Any exceedances of this naturally occurring TOC concentration in the downgradient wells shall be subject to the additional sampling and analysis as described above.
Attachment C Page 1 of 2

7. Monitoring wells shall be reported consistent with the nomenclature and location information provided in Figure I and this attachment.
Attachment C Page 2 of 2

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