4125_INSP_20170317

FACILITY COMPLIANCE INSPECTION REPORT
Division of Waste Management
Solid Waste Section

Page 1 of 3

UNIT TYPE:
Lined
MSWLF LCID YW Transfer Compost X SLAS COUNTY: Guilford
Closed
MSWLF HHW White
goods Incin T&P FIRM PERMIT NO.: 41-25
CDLF Tire T&P /
Collection Tire
Monofill Industrial
Landfill DEMO SDTF FILE TYPE: COMPLIANCE

Date of Site Inspection: March 17, 2017 Date of Last Inspection: February 26, 2016

FACILITY NAME AND ADDRESS:
Guilford College Compost Facility - Small Type III SWC Facility
5800 West Friendly Avenue
Greensboro, NC 27410

GPS COORDINATES:
N: 36.09679 W: -79.88873

FACILITY CONTACT NAME AND PHONE NUMBER:
David H. Petree, Director of Environmental Sustainability - Guilford College
w. 336-316-2402
c. 336-451-6638
f. 336-316-2954
[e-mail]

FACILITY CONTACT ADDRESS:
Guilford College
David Petree, Director of Environmental Sustainability
5800 West Friendly Avenue
Greensboro, NC 27410

PARTICIPANTS:
John Patrone, Environmental Senior Specialist - Solid Waste Section (SWS)
David H. Petree, Director of Environmental Sustainability - Guilford College

STATUS OF PERMIT:
Permit To Operate (PTO) issued June 6, 2013
PTO expiration date June 6, 2018

PURPOSE OF SITE VISIT:
Comprehensive Inspection

STATUS OF PAST NOTED VIOLATIONS:
None

OBSERVED VIOLATIONS:
None

FACILITY COMPLIANCE INSPECTION REPORT
Division of Waste Management
Solid Waste Section

Page 2 of 3

ADDITIONAL COMMENTS
On March 17, 2017, John Patrone met with David Petree to conduct a comprehensive inspection of the Guilford College
Compost Facility - Small Type III Solid Waste Compost Facility on West Friendly Avenue in Greensboro, Guilford
County.

1. The facility is a Small Type III Solid Waste Compost (SWC) Facility. It produces compost from post-consumer
food wastes, wood chips, leaves, and sawdust.
2. The facility permit, site plan, and operations plan were discussed.
3. The facility is in operation Monday through Friday 7:00 am to 4:00 pm.
4. The facility is not open to the public and is operated by Mr. Petree/staff and select students.
5. Feedstocks are generated at Guilford College.
6. The compost produced is used at the college on the farm (greenhouse and garden areas) and on campus grounds.
7. The facility uses two in-vessel compost units known as earth tubs, A and B.
8. Each tub contains about 3,000 lbs of food waste, 385 lbs of leaves, 120 lbs of wood chips, and 112 lbs of sawdust.
9. The earth tubs are piped to a 100-gallon buried leachate storage tank. Mr. Petree stated that leachate from the
tank is pumped to a container and poured into an adjacent municipal sewer stormwater drain.
10. The City of Greensboro – North Carolina has authorized the disposal of leachate to the sanitary sewer.
11. To achieve process to further reduce pathogens (PFRP), temperature in the earth tubs is required to be > 131° F
for three days. To meet vector attraction reduction (VAR), temperature in the earth tubs is required to be
maintained for an additional 11 days at > 104° F with the average temperature > 113° F.
12. Material remains in the earth tubs for at least 14 days, meeting both PFRP and VAR requirements.
13. Material removed from the tubs is combined into windrows. Two or three tubs of material are incorporated into
a windrow.
14. Mr. Petree stated that when a windrow is constructed about 1,000 lbs of wood chips and 45 yd3 of leaves are
mixed-in with the material from the earth tubs.
15. Leaves collected at the college are stockpiled and maintained for incorporation into windrows.
16. Sawdust used in the compost process is commonly generated at Guilford College. Mr. Petree stated that a small
amount of sawdust is accepted from known sources.
17. Temperature in the windrows shall be maintained for three days > 131° F due to the addition of the leaves and
sawdust.
18. The facility maintains earth tub and windrow temperature records. Compost temperature records were verified.
19. During the inspection, there were two full earth tubs and three small windrows on site.
20. The facility maintains records of the quantity and type of material received. The amount of material received
from August 2016 through February 2017 is ~ 28,000 to 30,000 lbs.
21. The facility maintains records of the quantity and type of material removed. The amount of material removed
from August 2016 through February 2017 is ~ 24,000 lbs.
22. The facility annual report (FAR) dated July 20, 2016 was received by the SWS. Material received for July 2015
through June 2016 is 39.31 tons. The amount of compost created is 36.28 tons, the amount used on site is 14.11
tons, and the amount stockpiled on site is 25.17 tons.
23. Compost analysis records were verified for 2016 and 2017 (to date). The North Carolina Department of
Agriculture & Consumer Services – Agronomic Services Division analyzed the required metals concentrations,
Research & Analytical Laboratories, Inc. analyzed fecal coliform, and manmade inerts were conducted by the
facility.
24. Ensure compost analysis records for the concentration of metals, manmade inerts, and fecal coliform are
conducted every 20,000 tons of compost produced or every six months, whichever comes first.
The item(s) listed above were observed by Section staff and require action on behalf of the facility in order to come into or maintain compliance
with the Statutes, Rules, and/or other regulatory requirements applicable to this facility. Be advised that pursuant to N.C.G.S. 130A-22, an
administrative penalty of up to $15,000 per day may be assessed for each violation of the Solid Waste Laws, Regulations, Conditions of a Permit,
or Order under Article 9 of Chapter 130A of the N.C. General Statutes. Further, the facility and/or all responsible parties may also be subject to
enforcement actions including penalties, injunction from operation of a solid waste management facility or a solid waste collection service and any
such further relief as may be necessary to achieve compliance with the North Carolina Solid Waste Management Act and Rules.
FACILITY COMPLIANCE INSPECTION REPORT
Division of Waste Management
Solid Waste Section

Page 3 of 3

25. Mr. Petree stated that the facility purchased a three-foot temperature probe. Ensure a temperature probe
calibration log is maintained.
26. The facility has a small scale available for use. Mr. Petree stated that the weight of materials used in the compost
process is known from experience and that container size remains constant.
27. There was no odor detected at the facility boundary.
28. Ponding of stormwater was not observed.
29. Fire lanes are maintained.
30. Access roads are of all-weather construction.
31. Ensure facility signage is updated to include the permit number. A second sign should be posted within the area
of the earth tubs.
32. The PTO expiration date is June 6, 2018.
33. The PTO renewal application shall be submitted to the SWS by February 6, 2018.

Please contact me if you have any questions or concerns regarding this inspection report.

Phone: [phone]

John Patrone
Environmental Senior Specialist
Regional Representative

Sent on: March 20, 2017 X Email Hand delivery US Mail Certified No. [ _]

Copies: Deb Aja, Western District Supervisor - SWS
Jessica Montie, Compliance Officer - SWS
Tony Gallagher, Supervisor - Composting & Land Application Branch – SWS
Corinne Law, Environmental Specialist – SWS