WQ0006317_Compliance Evaluation Inspection_20220509

ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
RICHARD E. ROGERS, JR.
Director
NORTH CAROLINA
Environmental Quality
May 9, 2022
Brian L. Smith — Operations Manager
Colonial Pipeline Company
411 Gallimore Dairy Road
Greensboro, 27409
SUBJECT: Compliance Evaluation Inspection
Permit No. WQ0006317
Colonial Pipeline — Greensboro Junction WWTF
Guilford County
Dear Mr. Smith:
On April 4, 2022, Division of Water Resources staff Caitlin Caudle conducted a scheduled
routine compliance inspection. A review of available records, treatment facilities, irrigation
fields, and monitoring wells was completed. This review reflected compliance with the
subject permit.
Please refer to the enclosed inspection report for additional comments and observations.
If you have any questions, please contact me or Caitlin Caudle at the letterhead address
or phone number, or by email at lon.snider©ncdenr.gov or caitlin.caudle(a�ncdenr.gov.
Sincerely,
r DocuSigned by:
L-. l . Jn,lAts'
145B49E225C94EA..
Lon T. Snider, Regional Supervisor
Water Quality Regional Operations Section
Division of Water Resources, NCDEQ-WSRO
Enc: Inspection Report
Cc: Maribeth Hughes, Colonial Pipeline (electronic copy)
Guilford County Environmental Health (electronic copy)
Laserfiche File WQ0006317
WSRO Electronic Files
GDE
NORTH CAROLINA '
omm mr� ep..of o�.i
North Carolina Department of Environmental Quality I Division of Water Resources
Winston-Salem Regional Office 1450 W. Hanes Mill Rd, Suite 300 I Winston-Salem, North Carolina 27105
336.776.9800

Compliance Inspection Report
Permit: WQ0006317
SOC:
County: Guilford
Region: Winston-Salem
Effective: 10/01/19 Expiration: 01 /31 /25
Effective: Expiration:
Owner : Colonial Pipeline Company
Facility: Colonial Pipeline - Greensboro Junction WWTF
411 Gallimore Dairy Rd
Greensboro NC 274099726
Contact Person: Faron Dale Leigh Title: Environmental Tech
Directions to Facility:
System Classifications: SI,
Primary ORC:
Secondary ORC(s):
On -Site Representative(s):
Related Permits:
Inspection Date: 04/04/2022
Primary Inspector: Caitlin Caudle
Secondary Inspector(s):
Entry Time 10:07AM
Certification:
Exit Time: 11:15AM
Phone: [phone]
Phone:
Phone: [phone]
Reason for Inspection: Routine Inspection Type: Compliance Evaluation
Permit Inspection Type: Wastewater Irrigation
Facility Status: Compliant ❑ Not Compliant
Question Areas:
▪ Treatment Flow Measurement -Effluent
II Treatment Flow Measurement -Water
Use Records
▪ End Use -Irrigation
▪ Wells
(See attachment summary)
▪ Treatment Flow Measurement -Influent
▪ Record Keeping
▪ Treatment Flow Measurement
▪ Miscellaneous Questions
▪ Treatment Lagoons
▪ Storage
Page 1 of 5

Permit: WQ0006317 Owner - Facility: Colonial Pipeline Company
Inspection Date: 04/04/2022 Inspection Type : Compliance Evaluation
Reason for Visit: Routine
Inspection Summary:
On April 4, 2022, Division of Water Resources staff Caitlin Caudle conducted a scheduled routine compliance inspection. A
review of available records, treatment facilities, irrigation fields, and monitoring wells was completed. This review reflected
compliance with the subject permit.
Water is decanted from the bottom of oil storage tanks manually. This decanted water (sting water) is transferred to a set of
12 storage tanks that allow for further oil and water separation. Sting water is decanted from the bottom of the storage tanks
manually, sent through a relic oil water separator that also adds a defoaming agent. The treated sting water is then
transferred via pumps to the clay lined storage lagoon. Freeboard is monitored weekly. Once freeboard is close to 2ft an
irrigation event is planned. The irrigation system is manually operated.
All monitoring wells were labeled appropriately and well caps were locked. All wells appeared to be in good condition.
All spray fields looked good. There was no sign of runoff or erosion in the fields.
Other observations:
• The system was winterized on 1/29/2021 and has not returned to operations yet, but an irrigation event will be
scheduled soon.
• The O&M Plan and Spill Plan are included in the safety plan for the entire facility.
• No disinfection is used.
• Irrigation calibration has not occurred yet this permit cycle.
• No residuals removal has occurred.
• pH was the only groundwater violation last year.
• A flow meter is present and measures the volume of effluent irrigated. There is no constant flow through the system.
There is no recirculation in this system.
• 2020 and 2021 soil reports were provided on 4/5/2022.
o pH > 6.0 in all fields for both years.
o Na in all fields was >1.0 meq/100cm3 in 2020.
o ESP was >15% in 2020.
• Effluent was a dark brown color.
• An antifoaming agent is used.
• All spray heads are used.
Page 2 of 5

Permit: WQ0006317 Owner - Facility: Colonial Pipeline Company
Inspection Date: 04/04/2022 Inspection Type : Compliance Evaluation
Reason for Visit: Routine
Type
Reuse (Quality)
Infiltration System
Single Family Spray, LR
Activated Sludge Spray, LR
Activated Sludge Drip, LR
Activated Sludge Spray, HR
Recycle/Reuse
Single Family Drip
Lagoon Spray, LR
Treatment Flow Measurement -Influent
Is flowmeter calibrated annually?
Is flowmeter operating properly?
Does flowmeter monitor continuously?
Does flowmeter record flow?
Does flowmeter appear to monitor accurately?
Comment:
Treatment Flow Measurement -Water Use Records
Is water use metered?
Are the daily average values properly calculated?
Comment:
Treatment Flow Measurement -Effluent
Is flowmeter calibrated annually?
Is flowmeter operating properly?
Does flowmeter monitor continuously?
Does flowmeter record flow?
Does flowmeter appear to monitor accurately?
Comment: Only flowmeter is on irrigation pumps.
Record Keeping
Is a copy of current permit available?
Are monitoring reports present: NDMR?
NDAR?
Are flow rates less than of permitted flow?
Are flow rates less than of permitted flow?
Yes No NA NE
IEI
IEI
IEI
IEI
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Yes No NA NE
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Yes No NA NE
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Page 3 of 5

Permit: WQ0006317 Owner - Facility: Colonial Pipeline Company
Inspection Date: 04/04/2022 Inspection Type : Compliance Evaluation
Reason for Visit: Routine
Are application rates adhered to?
Is GW monitoring being conducted, if required (GW-59s submitted)?
Are all samples analyzed for all required parameters?
Are there any 2L GW quality violations?
Is GW-59A certification form completed for facility?
Is effluent sampled for same parameters as GW?
Do effluent concentrations exceed GW standards?
Are annual soil reports available?
# Are PAN records required?
# Did last soil report indicate a need for lime?
If so, has it been applied?
Are operational logs present?
Are lab sheets available for review?
Do lab sheets support data reported on NDMR?
Do lab sheets support data reported on GW-59s?
Are Operational and Maintenance records present?
Were Operational and Maintenance records complete?
Has permittee been free of public complaints in last 12 months?
Is a copy of the SOC readily available?
No treatment units bypassed since last inspection?
Comment:
End Use-Irriqation
Are buffers adequate?
Is the cover crop type specified in permit?
Is the crop cover acceptable?
Is the site condition adequate?
Is the site free of runoff / ponding?
Is the acreage specified in the permit being utilized?
Is the application equipment present?
Is the application equipment operational?
Is the disposal field free of limiting slopes?
Is access restricted and/or signs posted during active site use?
Are any supply wells within the CB?
Are any supply wells within 250' of the CB?
How close is the closest water supply well?
Is municipal water available in the area?
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Page 4 of 5

Permit: WQ0006317 Owner - Facility: Colonial Pipeline Company
Inspection Date: 04/04/2022 Inspection Type : Compliance Evaluation
Reason for Visit: Routine
# Info only: Does the permit call for monitoring wells?
Are GW monitoring wells located properly w/ respect to RB and CB?
Are GW monitoring wells properly constructed, including screened interval?
Are monitoring wells damaged?
Comment:
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Page 5 of 5