WQ0006317_Final Permit_20230825

ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
RICHARD E. ROGERS, JR.
Director
KYLE D. BOYAN — OPERATIONS MANAGER
COLONIAL PIPELINE COMPANY
411 GALLIMORE DAIRY ROAD
GREENSBORO, NORTH CAROLINA 27409
Dear Mr. Boyan,
NORTH CAROLINA
Environmental Quality
August 25, 2023
Subject: Permit No. WQ0006317
Colonial Pipeline — Greensboro
Junction WWTF
Wastewater Irrigation System
Guilford County
In response to your permit minor modification request received on April 21, 2023, and subsequent
additional information received on July 19, 2023, we are forwarding herewith Permit No. WQ0006317
dated August 25, 2023, to Colonial Pipeline Company for the continued operation of the subject wastewater
treatment and irrigation facilities.
Modifications to the subject permit are as follows:
➢ The Division has removed Field 1 for a reduction of 1.09 acres. The Division has also updated
the Facility Description and reduced the permitted flow accordingly.
This permit is effective from the date of issuance through January 31, 2025, shall replace Permit
No. WQ0006317 issued on June 12, 2019, and is subject to the conditions and limitations therein. The
Permittee shall submit a renewal application no later than August 4, 2024.
Please pay attention to the monitoring requirements listed in Attachments A, B, and C for they may
differ from the previous permit issuance. Failure to establish an adequate system for collecting and
maintaining the required operational information may result in future non-compliance.
The Division has removed the following permit conditions since the last permit issuance dated
June 12, 2019:
➢ Old Condition L1 — The Division has removed this condition because the Permittee has
satisfied this compliance schedule.
➢ Old Condition IL3 — The Division has removed this condition.
➢ Old Condition 11.10 —The Division has removed this condition because the Permittee owns all
the wastewater irrigation sites.
D � North Carolina Department of Environmental Quality i Division of Water Resources
512 North Salisbury Street 11617 Mail Service Center I Raleigh, North Carolina 27699-1617
NORTH CAROLINA
'.'roMMm 0­; /I 919,707,9000

Mr. Kyle D. Boyan
August 25, 2023
Page 2 of 3
The following permit conditions and attachments are new or modified since the last permit
issuance dated June 12, 2019:
➢ Condition I.1 — The Permittee shall submit an Engineering Certification upon completion of
the Field 1 closure. The Permittee shall submit the Engineering Certification via the Non -
Discharge online portal.
➢ Condition L2 — Within 60 days of this permit's effective date, the Permittee shall permanently
abandon monitoring wells MW-I, MW-2, and MW-6. The Permittee shall permanently
abandon each monitoring pursuant to the requirements in 15A NCAC 02C .0113(d). Within
30 days of abandonment, the Permittee shall submit a Well Abandonment Record (Form GW-
30) for each permanently abandoned monitoring well. The Permittee shall submit the Well
Abandonment Records via the Non -Discharge online portal.
➢ Condition V1.10 —The Permittee shall pay an annual fee for each year of the term of this permit
pursuant to the schedule in G.S. 143-215.31)(a). The Permittee shall continue to pay annual
fees for any facility operating on an expired permit that the Division has not rescinded or
revoked.
➢ Attachment A — The Division has updated the monthly average flow limit to 6,000 gallons per
day (GPD) to match the reduced permitted flow. The Division has also revised the required
pH sampling frequency to "Weekly" to match the Operator visitation requirements.
➢ Attachment B — The Division has removed Field 1 from the list of approved wastewater
irrigation sites and updated the total acreage accordingly.
➢ Attachment C — The Division has removed MW-I, MW-2, and MW-6 from the listed
monitoring wells because the Permittee shall permanently abandon these monitoring wells
within 60 days of this permit's effective date.
This permit can be contested as provided in Chapter 150B of the North Carolina General Statutes
by filing a Petition for a Contested Case Hearing (Petition) with the North Carolina Office of Administrative
Hearings (OAH) within 30 calendar days. Requirements for filing a Petition are set forth in Chapter 150B
of the North Carolina General Statutes and Title 26 of the North Carolina Administrative Code. Those
interested in filing may access additional information regarding the requirements for filing a Petition and
Petition forms at the OAH website or by calling the OAH Clerk's Office at [phone]. A party filing
a Petition shall serve a copy of the Petition on the Department of Environmental Quality's Office of General
Counsel at 1601 Mail Service Center, Raleigh, NC 27699-1601. If the parry filing the Petition is not the
Permittee, then the party shall also serve the Permittee pursuant to G.S. 15013-23(a).

Mr. Kyle D. Boyan
August 25, 2023
Page 3 of 3
If you need additional information concerning this permit, please contact Zachary Mega at (919)
707-3658 or zachM.me aga9deq.nc. og_v.
Sincerely,
DocuSigned by:
Naf l� oun tt,l Tu"wo
D1043082680C483...
Richard E. Rogers, Jr., Director
Division of Water Resources
cc: Guilford County Health Department (Electronic Copy)
Winston-Salem Regional Office, Water Quality Regional Operations Section (Electronic Copy)
Operator Certification Program (Electronic Copy)
Laserfiche File (Electronic Copy)
Digital Permit Archive (Electronic Copy)

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NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENTAL QUALITY
RALEIGH
WASTEWATER IRRIGATION SYSTEM PERMIT
Pursuant to 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
Colonial Pipeline Company
Guilford County
FOR THE
continued operation of a 6,000 gallon per day (GPD) wastewater treatment and irrigation facility consisting
o£
a holding tank; an oil/water separator; an air -stripping unit; a 257,000 gallon clay -lined aerated lagoon with
two 5 horsepower (hp) aerators; 420 linear feet (LF) of 3-inch suction line; an 80 gallon per minute (GPM)
pump station; 1,709 LF of 3-inch distribution force main; 2,820 LF of 4-inch force main; a 2.39 acre spray
irrigation area with 11 spray irrigation heads; and all associated piping, valves, controls, and appurtenances
to serve the Colonial Pipeline — Greensboro Junction WWTF, with no discharge of wastes to surface waters,
pursuant to the application received on April 21, 2023, subsequent additional information received on July
19, 2023, and in conformity with the Division -approved plans and specifications considered a part of this
permit.
This permit is effective from the date of issuance through January 31, 2025, shall replace Permit No.
WQ0006317 issued on June 12, 2019, and is subject to the following conditions and limitations:
I. SCHEDULES
Upon completion of the Field 1 closure, the Permittee shall submit an engineering certification from a
North Carolina licensed Professional Engineer certifying that the Field 1 closure has been completed
pursuant to G.S. 143-215.1, Administrative Code Title 15A Subchapter 02T, this permit, and the
Division -approved plans and specifications. For phased and partially certified facilities, the Permittee
shall retain the responsibility to track further construction approved under this permit and shall provide
a final engineering certification upon project completion. The Permittee shall submit the Engineering
Certification via the Non -Discharge online portal. [ 15A NCAC 02T .0116(a)]
2. Within 60 days of this permit's effective date, the Permittee shall permanently abandon monitoring
wells MW-I, MW-2, and MW-6. The Permittee shall permanently abandon each monitoring pursuant
to the requirements in 15A NCAC 02C .0113(d). Within 30 days of abandonment, the Permittee shall
submit a Well Abandonment Record (Form GW-30) for each permanently abandoned monitoring well.
The Permittee shall submit the Well Abandonment Records via the Non -Discharge online portal. [ 15A
NCAC 02C .0113(d), 02C .0309, 02T .0108(b)(1)(B)]
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3. If the permitted facilities change ownership or the Permittee changes its name, the Permittee shall
submit a permit modification request on Division -approved forms within 90 days of the change of
ownership. The Permittee shall comply with all terms and conditions of this permit until the Division
transfers the permit to the successor -owner. [G.S. 143-215.1(d3)]
4. The Permittee shall request renewal of this permit on Division -approved forms no later than August 4,
2024. [15A NCAC 02T .0105(b), 02T .01091
IL PERFORMANCE STANDARDS
The Permittee shall operate and maintain the subject wastewater treatment and irrigation facilities so
there is no discharge to surface waters, nor any contravention of groundwater or surface water
standards. In the event the facilities do not perform as designed, including the creation of nuisance
conditions due to improper operation and maintenance, or failure of the irrigation areas to assimilate
the effluent, the Permittee shall take immediate corrective actions, including Division -required actions,
such as the construction of additional or replacement wastewater treatment or disposal facilities. [ 15A
NCAC 02T .0108(b)(1)(A)]
2. This permit shall not relieve the Permittee of its responsibility for contravention of groundwater or
surface water standards resulting from the operation of this facility. [15A NCAC 02T .0108(b)(1)(A)]
3. Effluent quality shall not exceed the limitations specified in Attachment A. [15A NCAC 02T
.0108(b)(1)(A)1
4. The Permittee shall not irrigate effluent in exceedance of the hydraulic and agronomic rates specified
m Attachment B. [15A NCAC 02T .0108(b)(1)(A)1
For wastewater irrigation fields originally permitted prior to December 30, 1983, the Division has
established the compliance boundary 500 feet from the irrigation area boundary or at the property
boundary, whichever is closest to the irrigation area boundary. Any exceedance of groundwater
standards at or beyond the compliance boundary shall require the Permittee to take corrective action.
The Division shall note any Division -approved relocation of the compliance boundary in Attachment
B. The Division shall consider multiple contiguous properties under common ownership and permitted
for use as a disposal system as a single property regarding the determination of a compliance boundary.
[ 15A NCAC 02L .0106(e), 02L .0107(a), 02L .0107(c), 02L .0107(f), 02T .0105(h)]
6. The Division has established the review boundary midway between the compliance boundary and the
irrigation area boundary. Any exceedance of groundwater standards at or beyond the review boundary
shall require the Permittee to take preventative action. [ 15A NCAC 02L .0106(d), 02L .0108]
7. The Permittee shall notify the Division of any sale or transfer of property affecting a compliance
boundary (i.e., parcel subdivision). [15A NCAC 02L .0107(1)]
8. The Permittee or any landowner who owns land within the compliance boundary shall not construct
any water supply wells within the compliance boundary. [ 15A NCAC 02L .0107(i)]
9. The permitted facilities have no setbacks. The original permit (Permit No. 4205) pre -dates
administrative code 15A NCAC 02H .0219(i), which was effective October 1, 1987. Since no
modifications or expansions have been made to the originally permitted facility, the facility is still
covered under the 15A NCAC 02H .0200 rules effective February 1, 1976, which contain no setback
requirements. [ 15A NCAC 02H .02001
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III. OPERATION AND MAINTENANCE
1. The Permittee shall operate and maintain the subject facilities as anon -discharge system. [15A NCAC
02T .0101]
2. The Permittee shall maintain an Operation and Maintenance Plan, which shall include:
a. A description of the operation of the system in sufficient detail to show what operations are
necessary for the system to function and who shall conduct the operations.
b. A description of the anticipated maintenance of the system.
c. Provisions for safety measures, including restriction of access to the site and equipment.
d. Spill control provisions that include response to upsets and bypasses, including control,
containment, and remediation; and contact information for personnel, emergency responders, and
regulatory agencies.
[ 15A NCAC 02T .0507(a)1
3. Upon the Water Pollution Control System Operators Certification Commission's (WPCSOCC)
classification of the subject non -discharge facilities, the Permittee shall designate and employ a certified
Operator in Responsible Charge (ORC), and one or more certified operators as Back-up ORCs. The
ORC or its Back-up shall operate and visit the facilities as required pursuant to 15A NCAC 08G .0204
and 08G .0205. [ 15A NCAC 02T .0117]
4. The Permittee shall maintain a year-round vegetative cover on the irrigation area such that crop health
is optimal and allows even effluent distribution and inspection of the irrigation system. [15A NCAC
02T .0507(b)]
5. The Permittee shall take measures to prevent effluent ponding in or runoff from the irrigation area.
[ 15A NCAC 02T .0507(c)1
6. The Permittee shall not irrigate treated effluent during inclement weather or when the soil is in a
condition that will cause ponding or runoff. [ 15A NCAC 02T .0505(x)]
7. The Permittee shall test and calibrate the irrigation equipment once per permit cycle. [ 15A NCAC 02T
.0507 d
8. The Permittee shall only irrigate treated effluent from the Colonial Pipeline — Greensboro Junction
WWTF onto the sites listed in Attachment B. [15A NCAC 02T .0501]
9. The Permittee shall not allow vehicles or heavy machinery on the irrigation area, except during
equipment installation or maintenance activities. [ 15A NCAC 02T .0507(e)]
10. The Permittee shall prohibit public access to the wastewater treatment, storage, and irrigation facilities.
[ 15A NCAC 02T .0505(g)]
11. The Permittee shall dispose of or utilize generated residuals in a Division -approved manner. [15A
NCAC 02T .0508, 02T .1101].
12. The Permittee shall not divert or bypass untreated or partially treated wastewater from the subject
facilities. [15A NCAC 02T .0505(i)]
13. The Permittee shall maintain a freeboard of not less than two feet in the 257,000 gallon clay -lined
aerated lagoon. [ 15A NCAC 02T .0505(d)]
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14. The Permittee shall provide a gauge to monitor freeboard levels in the 257,000 gallon clay -lined aerated
lagoon. This gauge shall have readily visible permanent markings, at inch or tenth of foot increments,
indicating the following elevations: the maximum liquid level at the top of the temporary liquid storage
volume, the minimum liquid level at the bottom of the temporary liquid storage volume, and the lowest
point on top of the dam. [ 15A NCAC 02T .0507(f)]
15. The Permittee shall establish and maintain a protective vegetative cover on all berms, pipe runs, erosion
control areas, surface water diversions, and earthen embankments (i.e., the outside toe of the
embankment to the maximum allowable temporary storage elevation on the inside of the embankment).
The Permittee shall remove all trees, shrubs, and other woody vegetation from earthen dikes and
embankments. The Permittee shall keep all earthen embankments mowed or otherwise controlled and
accessible. [ 15A NCAC 02T .0507(a)]
16. The Permittee shall test and calibrate metering equipment annually. [15A NCAC 02T .0507(d)]
IV. MONITORING AND REPORTING
1. The Permittee shall conduct and report any Division -required monitoring, including the monitoring of
groundwater, surface water or wetlands, waste, wastewater, residuals, soil, treatment processes, lagoon
or storage ponds, and plant tissue, if necessary to evaluate this facility's impact on groundwater and
surface water. [ 15A NCAC 02T .0108(c)]
2. A Division -certified laboratory shall conduct all analyses for the required parameters specified in
Attachments A and C. Parameters measured on -site with in -line metering equipment are exempt from
a Division -certified laboratory analysis. [15A NCAC 02H .0805]
3. The Permittee shall continuously monitor flow through the treatment facility and report daily flow
values on Form NDMR. Facilities with a permitted flow of less than 10,000 GPD may estimate its
flow from water usage records provided the water source has a metering device. [15A NCAC 02T
.0105 k , 02T .0108(c)]
4. The Permittee shall monitor the treated effluent at the frequencies and locations for the parameters
specified in Attachment A. [ 15A NCAC 02T .0105(k), 02T .0108(c)1
5. The Permittee shall maintain records tracking the amount of effluent irrigated, which shall include the
following information for each irrigation site listed in Attachment B:
a. Date of irrigation.
b. Volume of effluent irrigated.
c. Site irrigated.
d. Length of site irrigation time.
e. Continuous weekly, monthly, and year-to-date hydraulic (inches/acre) loadings.
£ Continuous monthly and year-to-date loadings for any non -hydraulic parameter specifically
limited in Attachment B.
g. Weather conditions.
h. Maintenance of cover crops.
[ 15A NCAC 02T .0108(c)]
6. The Permittee shall measure and record weekly to the nearest inch or tenth of a foot of freeboard (Le.,
the waste level to the lowest embankment elevation) in the 257,000 gallon clay -lined aerated lagoon.
The Permittee shall maintain the weekly freeboard records for eight years and shall make them available
to the Division upon request. [ 15A NCAC 02T .0108(c)1
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7. On or before the last day of the month following the previous month's sampling, the Permittee shall
submit monitoring data (as specified in Conditions IV.3 and IVA) on Form NDMR for each PPI and
operation and disposal records (as specified in Conditions IV.5 and IV.6) on Form NDAR-1 for every
site in Attachment B. If no activities occurred during the monitoring month, the Permittee shall still
submit monitoring reports documenting the absence of the activity. The Permittee shall submit the
reports via the Non -Discharge monitoring report portal_ [15A NCAC 02T .0105(1)]
8. The Permittee shall maintain records of all residuals removed from this facility. The Permittee shall
maintain these records for eight years and shall make them available to the Division upon request.
These records shall include:
a. Name of the residuals hauler.
b. Non -Discharge permit number authorizing the residuals disposal, or a letter from a municipality
agreeing to accept the residuals.
c. Residuals hauling date.
d. Volume of residuals removed.
[ 15A NCAC 02T .0508(b)]
9. The Permittee shall keep a log of all maintenance done at this facility. The Permittee shall maintain
this log for eight years and shall make it available to the Division upon request. This log shall include:
a. Date of flow measurement device calibration.
b. Date of irrigation equipment calibration.
c. Visual observations of the plant and plant site.
d. Record of preventative maintenance (e.g.,
inspections, cleanings, etc.).
[ 15A NCAC 02T .0507(h)]
changing of equipment, adjustments, testing,
10. The Permittee shall sample monitoring wells MW-5, MW-7, and MW-9 at the frequencies and for the
parameters specified in Attachment C. [ 15A NCAC 02T .0105(m)1
11. On or before the last day of the month following the previous month's sampling, the Permittee shall
submit a Compliance Monitoring Form (GW-59) and its associated laboratory analyses for each
monitoring well in Attachment C. The Permittee shall submit the Compliance Monitoring Forms via
the Non -Discharge monitoring report portal_ [15A NCAC 02T .0105(m)]
12. The Permittee shall conduct an annual representative soil analysis (i.e., Standard Soil Fertility Analysis)
on each irrigation site listed in Attachment B. The Permittee shall maintain these results at the facility
for eight years and shall make them available to the Division upon request. Each Standard Soil Fertility
Analysis shall include the following parameters:
Acidity
Exchangeable Sodium Percentage
Phosphorus
Base Saturation (by calculation)
Magnesium
Potassium
Calcium
Manganese
Sodium
Cation Exchange Capacity
Percent Humic Matter
Zinc
Copper
pH
01
[15A NCAC 02T .0108(c)1
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13. Noncompliance Notification:
The Permittee shall report to the Winston-Salem Regional Office, telephone number [phone],
within 24 hours of first knowledge of the following:
a. Treatment of wastes abnormal in quantity or characteristic, including the known passage of a
hazardous substance.
b. Any process unit failure (e.g., mechanical, electrical, structural, etc.) that makes the facility
incapable of adequate wastewater treatment.
c. Any facility failure resulting in a discharge to surface waters.
d. Any time self -monitoring indicates the facility has gone out of compliance with its permit
limitations.
e. Ponding in or runoff from the irrigation sites.
Emergencies requiring reporting outside normal business hours shall call the Division's Emergency
Response personnel at the telephone number [phone]. All noncompliance notifications shall
file a written report to the Winston-Salem Regional Office within five days of first knowledge of the
occurrence, and this report shall outline the actions proposed or taken to ensure the problem does not
recur. [15A NCAC 02T .0108(b)(1)(A)1
V. INSPECTIONS
1. The Permittee shall perform inspections and maintenance to ensure proper operation of the wastewater
treatment and irrigation facilities. [15A NCAC 02T .0507(i)1
2. The Permittee shall inspect the wastewater treatment and irrigation facilities to prevent malfunctions,
facility deterioration, and operator errors that may result in discharges of wastes to the environment,
threats to human health, or public nuisances. The Permittee shall maintain an inspection log that
includes the date and time of inspection, observations made, and maintenance, repairs, or corrective
actions taken. The Permittee shall maintain this inspection log for eight years from the date of the
inspection and shall make this log available to the Division upon request. [ 15A NCAC 02T .0507(h),
02T .0507(i)1
Division -authorized representatives may, upon presentation of credentials, enter and inspect any
property, premises, or place related to the permitted wastewater treatment and irrigation facilities at any
reasonable time for determining compliance with this permit. Division -authorized representatives may
inspect or copy records maintained under the terms and conditions of this permit and may collect
influent, treatment process water, effluent, residual, soil, plant tissue, groundwater, or surface water
samples. [G.S. 143-215.3(a)(2)1
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Vl. GENERAL
1. The Permittee's failure to comply with this permit's conditions and limitations may subject the
Permittee to a Division enforcement action. [G.S. 143-215.6A, 143-215.6B, 143-215.6C]
2. This permit is effective only for the nature and volume of wastes described in the permit application
and Division -approved plans and specifications. [G.S. 143-215.1(d)1
3. There are no variances to administrative codes or general statutes governing the construction or
operation of the permitted facilities unless the Permittee specifically requested a variance in the
application and the Division approved the variance as noted in this permit's facility description. [15A
NCAC 02T .0105(b)]
4. This permit does not exempt the Permittee from complying with all statutes, rules, regulations, or
ordinances that other jurisdictional government agencies (e.g., local, state, and federal) may require.
[15A NCAC 02T .0 1 08(b)(1)(A)]
5. The Permittee shall retain this permit and the Division -approved plans and specifications for the life of
the permitted facilities. [15A NCAC 02T .0105(o), 02T .0116(d)]
6. The Permittee shall comply with all permit conditions and requirements until the proper closure of the
permitted facilities, or until another appropriate authority permits the facilities. [15A NCAC 02T
.0105 ]
7. This permit is subject to revocation or modification upon 60-day notice from the Division Director in
whole or part for:
a. Violation of any terms or conditions of this permit or 15A NCAC 02T.
b. Obtaining a permit by misrepresentation or failure to disclose all relevant facts.
c. The Permittee's refusal to allow authorized Department employees upon presentation of
credentials:
I. To enter the Permittee's premises where a system is located or where the Permittee keeps any
Division -required records under the terms and conditions of this permit.
ii. To have access to any permit -required documents and records.
iii. To inspect any monitoring equipment or method as required in this permit.
iv. To sample any pollutants.
d. The Permittee's failure to pay the annual fee for administering and compliance monitoring.
e. A Division determination that the conditions of this permit conflict with the North Carolina
Administrative Code or General Statutes.
[ 15A NCAC 02T .01101
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8. Unless the Division determines that the Permittee needs a permit modification for the construction of
facilities to resolve non-compliance with any environmental statute or rule, or the Division Director
grants a variance, expansion of the permitted facilities shall not occur if any of the following apply:
a. The Permittee or any parent, subsidiary, or other affiliate of the Permittee has been convicted of
environmental crimes under G.S. 143-215.6B or under Federal law that would otherwise be
prosecuted under G.S. 143-215.6B, and the Permittee or any parent, subsidiary, or other affiliate of
the Permittee has abandoned or exhausted all appeals of this conviction.
b. The Permittee or any parent, subsidiary, or other affiliate of the Permittee has previously abandoned
a wastewater treatment facility without properly closing the facility in accordance with its permit
or 15A NCAC 02T.
c. The Permittee or any parent, subsidiary, or other affiliate of the Permittee has not paid a civil
penalty, and the Permittee or any parent, subsidiary, or other affiliate of the Permittee has
abandoned or exhausted all appeals of this penalty.
d. The Permittee or any parent, subsidiary, or other affiliate of the Permittee is currently not compliant
with any compliance schedule in a permit, settlement agreement, or order.
e. The Permittee or any parent, subsidiary, or other affiliate of the Permittee has not paid an annual
fee pursuant to 15A NCAC 02T .0105(e)(2).
[ 15A NCAC 02T .0120(b), 02T .0120(d)]
9. Unless the Division Director grants a variance, the Division shall not renew this permit if the Permittee
or any affiliation has not paid an annual fee pursuant to 15A NCAC 02T .0I05(e)(2). [15A NCAC 02T
.0120 c , 02T .0120(d)]
10. The Permittee shall pay an annual fee for each year of the term of this permit pursuant to the schedule
in G.S. 143-215.31)(a). The Permittee shall continue to pay annual fees for any facility operating on
an expired permit that the Division has not rescinded or revoked. [ 15A NCAC 02T .0105(e)(2)]
Permit issued this the 25t1i day of August 2023
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
DocuSigned by:
v"W�
D1043082080C483...
Richard E. Rogers, Jr., Director
Division of Water Resources
By Authority of the Environmental Management Commission
Permit Number WQ0006317
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Permit No. WQ0006317 Wastewater Irrigation System
Colonial Pipeline Company August 25, 2023
Colonial Pipeline — Greensboro Junction WWTF Guilford County
ENGINEERING CERTIFICATION
❑ Partial ❑ Final
I, , as a duly licensed North Carolina Professional
Engineer, having ❑ periodically / ❑ fully observed the construction of the permitted modifications, do
hereby state to the best of my abilities that the facility was constructed in compliance with G.S. 143-215.1,
Administrative Code Title 15A Subchapter 02T, this permit, and the Division -approved plans and
specifications.
Documentation of any variation to this permit, and the Division -approved plans and specifications, is in the
attached as -built drawings.
Description of variations:
Professional Engineer's Name
Firm Name Firm No.
Address
City StaME& Zip Code
Telephone ANELEmail Seal, Signature, and Date
THE PERMITTEE SHALL SUBMIT THE COMPLETED ENGINEERING CERTIFICATION, INCLUDING
ALL SUPPORTING DOCUMENTATION, VIA THE NON -DISCHARGE ONLINE PORTAL.
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ATTACHMENT A — LIMITATIONS AND MONITORING REQUIREMENTS
Colonial Pipeline Company
PPI 001— WWTF Effluent
Certification Date: August 25, 2023
Permit Number: WQ0006317 Version: 4.1
EFFLUENT CHARACTERISTICS
EFFLUENT LIMITS
MONITORING REQUIREMENTS
PCS
Code
Parameter Description
Units of
Measure
Monthly
Average
Monthly
Geometric Mean
Daily Minimum
Daily Maximum
Measurement
Frequency
Sample
Type
00310
BOD, 5-Day (20 °C)
mg/L
3 x Year'
Grab
00916
Calcium, Total (as Ca)
mg/L
3 x Year'
Grab
00940
Chloride (as Cl)
mg/L
3 x Year'
Grab
31616
Coliform, Fecal MF, M-FC Broth, 44.5 °C
#/100 mL
3 x Year'
Grab
50050
Flow, in Conduit or thru Treatment Plant
GPD
6,000
Monthly
Estimate
00927
Magnesium, Total (as Mg)
mg/L
3 x Year'
Grab
00610
Nitrogen, Ammonia Total (as N)
mg/L
3 x Year 1
Grab
00625
Nitrogen, Kjeldahl, Total (as N)
mg/L
3 x Year 1
Grab
00620
Nitrogen, Nitrate Total (as N)
mg/L
3 x Year
Grab
00600
Nitrogen, Total (as N)
mg/L
3 x Year
Grab
00556
Oil and Grease
mg/L
3 x Year 1
Grab
00400
pH
su
Weekly
Grab
00665
Phosphorus, Total (as P)
mg/L
3 x Year'
Grab
00931
Sodium Adsorption Ratio (SAR)
ratio
3 x Year'
Calculated
00929
Sodium, Total (as Na)
mg/L
3 x Year'
Grab
70300
Solids, Total Dissolved — 180 °C
mg/L
3 x Year'
Grab
00530
Solids, Total Suspended
mg/L
3 x Year'
Grab
NDVOC
Volatile Organic Compounds (VOC)
yes/no
3 x Year'
Grab
1. The Permittee shall conduct 3 x Year sampling in March, July, and November.
WQ0006317 Version 4.1 Attachment A Page 1 of 1

THIS PAGE BLANK

ATTACHMENT B — APPROVED LAND APPLICATION SITES AND LIMITATIONS
Colonial Pipeline Company
Certification Date: August 25, 2023
Permit Number: WQ0006317 Version: 4.1
IRRIGATION AREA INFORMATION
APPLICATION LIMITATIONS
Field
Owner
Parcel No.
County
Latitude
Longitude
Net
Acreage
Dominant
Soil Series
Parameter
Hourly
Rate
Yearly
Max
Units
2
Colonial Pipeline Company
99785
Guilford
36.067475'
-79.945353'
1.09
CeB2 — Cecil
01284 — Non -Discharge Application Rate
0.15
33.75
niches
3
Colonial Pipeline Company
99785
Guilford
36.068515'
-79.946002'
1.30
CeC2 — Cecil
01284 — Non -Discharge Application Rate
0.15
33.75
inches
Total:
2.39
WQ0006317 Version 4.1 Attachment B Page 1 of 1

THIS PAGE BLANK

ATTACHMENT C — GROUNDWATER MONITORING AND LIMITATIONS
Colonial Pipeline Company
Monitoring Wells: MW-5, MW-7, and MW-9
Certification Date: August 25, 2023
Permit Number: WQ0006317 Version: 4.1
GROUNDWATER CHARACTERISTICS
GROUNDWATER STANDARDS
MONITORING REQUIREMENTS
PCS Code
Parameter Description
Daily Maximum
Frequency Measurement
Sample Type
Footnotes
00940
Chloride (as Cl)
250
mg/L
3 x Year
Grab
1
31616
Coliform, Fecal MF, M-FC Broth, 44.5 °C
#/100 mL
3 x Year
Grab
1
00610
Nitrogen, Ammonia Total (as N)
1.5
mg/L
3 x Year
Grab
1
00620
Nitrogen, Nitrate Total (as N)
10
mg/L
3 x Year
Grab
1
00400
pH
6.5-8.5
su
3 x Year
Grab
1,2
00665
Phosphorus, Total (as P)
mg/L
3 x Year
Grab
1
70300
Solids, Total Dissolved - 180 °C
500
mg/L
3 x Year
Grab
1
GWVOC
Volatile Compounds (GW)
Present: Yes/No
Annually
Grab
1, 4, 5
82546
Water Level, Distance from measuring point
feet
3 x Year
Calculated
1, 2, 3
1. The Permittee shall conduct 3 x Year monitoring in March, July, and November, and Annual monitoring in November.
2. The Permittee shall measure the water levels prior to purging the wells. The Permittee shall measure the depth to water in each well from the surveyed point on the top of the casing. The Permittee
shall measure pH after purging and prior to sampling for the remaining parameters.
3. The Permittee shall survey the measuring points (top of well casing) of all monitoring wells to provide the relative elevation of the measuring point for each monitoring well. The Permittee shall
survey the measuring points (top of casing) of all monitoring wells relative to a common datum.
4. Volatile Organic Compounds (VOC) — Analyze by one or more of the following methods:
a. Standard Method 6200 B-2011, PQL at 0.5 �tg/L or less
b. Standard Method 6200 C-2011, PQL at 0.5 gg/L or less
c. SW-846 Method 8021 B, Low Concentration, PQL at 0.5 gg/L or less
d. SW-846 Method 8260 D, Low Concentration, PQL at 0.5 �tg/L or less
e. Another method with prior approval by the Water Quality Permitting Section Chief
Any method used shall meet the following qualifications:
a. A Division -certified laboratory shall run any method used.
b. The method used shall include all the constituents listed in Table 6200:I of Standard Methods.
c. The method used shall provide a PQL of 0.5 �tg/L or less supported by laboratory proficiency studies as required by the Division's Laboratory Certification Branch. A Division -certified
laboratory shall qualify (estimate) and report any constituents detected above the MDL but below the PQL of 0.5 gg/L.
5. If monitoring detects any volatile organic compounds (VOC), then the Permittee shall immediately contact the Winston-Salem Regional Office supervisor, telephone number [phone], for
further instructions regarding any additional follow-up analyses required.
6. The Permittee shall report monitoring well data on Compliance Monitoring Forms (GW-59s) consistent with the nomenclature and location information provided in this attachment.
WQ0006317 Version 4.1 Attachment C Page 1 of 1

Figure 1 - Colonial Pipeline -Greensboro Junction
17 PART RSHIP TRUOKYVORKS LTD LTC
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Review Boundary

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Zone 1 irrigation piping
r-r C 12 - E.. _ . to be removed during
- y construction ` Sprayheads to be
MW-y y Proposed location of where
- y Zone 1 irrigation piping will be 4 removed
`- capped ; MW-IB
�T
ot
L
Spray Irrigation Fields 1-5
Field 6 is no longer in use. 'L ;
L� Spray Irriguion Fields 12-17
0 887.41 V P T
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� SCALE ;N FEET
p'••. - _ ��� [fir 1' r as { ,�
GRID,BASED ON N. C. STATE PLANE COORDINATE SYSTEM. N. A. I927 �
ELEVATIONS REFER TO 1929 DEAN SEA LEVEL DATUM
PMna,*., r :-
r --.j �AALI#:
s i �0�''D 843.06 VPT
D
�,.
C
_ @COLON IA L PIPELINE COMPANY
4❑ Revised For Minor Permit Modification - Removal of orje 1 DYR 04-10-23 AT,.. A!4:TA. :aEDRGIA
,! 3 S rrr' GREENSBORO JUNCTION
-� 1~N'.1t,CJ�Jfiz�.�..J i� - t~ . �1# 3+�3T)1T1 a!] �• I MDfAs L-2J-F
c•� REDRAWN UPDATED I $FA 4-6-$3 GENERAL LAYOUT f �NufhCNr'�F r�1 J}t
NO REVISION AFE BY DATE
SCALE
DETAILS
1"= 150,
oESjGN
DRAWN
CHECKED
DATE
2-18-83
7--GR—P15
_A
SHEET 1
OF 1
E
F
G
H