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HomeMy WebLinkAboutNCG070715_NOD Response Email_20240723 Peterson, Kathryn S From: Eplin, Jerry W Sent: Tuesday, July 23, 2024 3:51 PM To: Peterson, Kathryn S Subject: FW: [External] Gold Bond Mount Holly NC Plant - Response to Notice of Deficiency (NOD-2024-PC-0098) Attachments: GB MT Holly Response Letter.pdf, GB Mount Holly NC SWPPP_Final_Jun 2024.pdf; NPDES NOV Letter_dtd 06-04-24.pdf For you to upload, and review/evaluate their submittal. Let me know your thoughts when you are finished looking at it. Jerry W. Eplin, PE Regional Engineer North Carolina Department of Environmental Quality Division of Energy, Mineral, and Land Resources Office: (704)235-2147 Email: merry.eplina-deg.nc.gov Physical and Mailing Address: 610 E. Center Ave. Suite 301 Mooresville, NC 28115 D,- EQ&�,- NOnT I i ARL);.IhN R4P1rtWA Ypl 6fKMoft Fwtal Email correspondence to and from this address is subject to the North Caro/Ina Public Records Law and may be disclosed to third parties From: Lynch, Adam L<aI lynch @gold bond building.com> Sent: Friday,June 28, 2024 2:17 PM To: Eplin,Jerry W<jerry.eplin@deq.nc.gov> Subject: [External] Gold Bond Mount Holly NC Plant- Response to Notice of Deficiency(NOD-2024-PC-0098) You don't often get email from allynch@goldbondbuilding.com.Learn why this is important CAUTION: External email. Do not click links or open attachments unless verified. Report suspicious emails with the Report Message button located on your Outlook menu bar on the Home tab. Hello Mr. Elpin, Please find attached Gold Bond's response to the DEMLR's Notice of Deficiency(NOD-2024-PC-0098)letter, dated May 30, 2024 for the Gold Bond Mounty Holly NC plant. 1 The attached includes the response letter,the original NOD letter for reference, and the revised SWPPP with applicable completed documents. If you have any questions, please let me know. Thankyou, ADAM LYNCH PLANT MANAGER MT HOLLY, NC 704-964-5091 (OFFICE) 980-308-3972 (MOBILE) 3FOld i�y�ru�Bated Email correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties by an authorized state official. 2 Building roduc s June 28, 2024 Mr.Jerry W. Eplin, PE Regional Engineer Land Quality Section Division of Energy, Mineral and Land Resources North Carolina Department of Environmental Quality Mooresville Regional Office 610 East Center Avenue, Suite 301 Mooresville, NC 28115 Subject: Notice of Deficiency(NOD-2024-PC-0098) Response Letter Dear Mr. Eplin: Gold Bond Building Products, LLC (Gold Bond) is submitting this written response to the North Carolina Department of Environmental Quality (DEQ), Division of Energy, Mineral and Land Resources (DEMLR) Notice of Deficiency (NOD-2024-PC-0098) letter, dated May 30, 2024, for the Mount Holly Plant located at 1725 Drywall Drive, Mount Holly, Gaston County North Carolina. The following deficiencies noted in the NOD letter have been addressed: The Stormwater Pollution Prevention Plan (SWPPP) has not been reviewed on an annual basis. o Gold Bond Response: The SWPPP has been reviewed and updated in accordance with the latest General Permit No. NCG070000, effective June 1, 2023 and expiring May 31, 2028, The SWPPP will be reviewed annually thereafter by the facility. See the attached updated SWPPP. * Illicit (no n-Stormwater) discharge monitoring has not occurred. o Gold Bond Response: Non-stormater discharge monitoring has been completed by the facility using the form in the updated SWPPP. Seethe attached completed form in Appendix C of the updated SWPPP. This inspection will completed and logged as required in the SWPPP from this point forward. Analytical monitoring has not occurred. o Gold Band Response: The facility has contracted a certified laboratory to complete the required analytical testing. Sampling equipment has been provided to the facility; however, analytical monitoring has not yet occurred since there has not been a qualified storm event. Analytical monitoring, as well as qualitative monitoring, will be conducted upon the next qualified storm event and will completely quarterly as outlined in the new SWPPP. A solvent management plan has not been prepared. o Gold Bond Response: A solvent management plan has been prepared and included as a chapter in the updated SWPPP. Regarding other observations noted in the SOD letter: • The SWPPP site map does not clarify that all storm drains, ditches and roof drains that contain water exposed to industrial activity discharge to one of the existing known outfalls. o Gold Bond Response: Facility drawings have been reviewed as well as existing site conditions. The SWPPP site map has been updated with a note clarifying this. ® Housekeeping at the facility needs improvement. o Gold Bond Response: Regular sweeping is done on facility roadways, including daily sweeping of facility roadways and the roadway from the truck tire wash area north along the facility access road to Route 273. At the time of your inspection, there was also material on the ground outside of the roll up doors leading to the parking lot from the stucco silos on the west side of the plant. This area has since been cleaned up, and the facility will continue to monitor the area for housekeeping purposes to reduce or eliminate materials being exposed to stormwater. • The truck tire wash was not operational at the time of the inspection; thus, this Best Management Practice was not being utilized. o Gold Bond Response: See below for additional information. DELMR requested written response to the following items. When will the truck tire wash be repaired and operational? o Gold Bond Response: The facility is currently assessing the truck tire wash to determine how soon it can be repaired and operational based on the extent of the repairs and upgrades needed. Given the extent of the repairs needed, including structural repairs, the facility estimates that the truck tire wash will be repaired and operational by the end of 2024. In the interim, the facility is performing regular sweeping of facility roadways, including daily sweeping of the roadway from the truck tire wash area north along the facility access road to Route 273. How did the deficiencies noted above occur and what actions will the facility take to assure that they do not recur. o Gold Bond Response: SWPPP team members are fairly new to the facility andlor their positions, and they were unaware of the full SWPPP requirements as well as recent changes from the latest General Permit. SWPPP team members have been trained on the requirements of the SWPPP and will track and monitor necessary compliance requirements, including but not limited to, annual reviews, illicit discharge monitoring, analytical and qualitative monitoring and training. Regarding the Action Items in the NOD letter: 1. Immediately review and amend the facility's SWPPP as needed. Incorporate and begin annual updates, annual illicit discharge monitoring, and the analytical and qualitative monitoring and reporting schedule, and include the required Solvent Management Plan. o Gold Bond Response: The facility's SWPPP has been updated based on the new General Permit. Subsequent annual updates will be incorporated into the SWPPP, as well as annual illicit discharge monitoring, and analytical and qualitative monitoring and reporting. The Solvent Management Plan has been included as a chapter in the revised SWPPP. 2. Conduct training related to the updated SWPPP. o Gold Bond Response: Training related to the updated SWPPP has been conducted for the SWPPP team members. Documentation of SWPPP training is provided in Appendix F of the SWPPP. Furthermore, Gold Bond conducts comprehensive online SWPPP training for all facility personnel on an annual basis. The last SWPPP training was done in July 2023, and most facility personnel have completed the SWPPP training for this year, which is due in July 2024. Documentation of this training for facility personnel is also included in Appendix F of the SWPPP. 3. Provide this office an electronic copy of the updated SWPPP and training records within 30 days of receiving this Notice of Deficiency. o Gold Bond Response: An electronic copy of the updated SWPPP is attached as part of this submittal. Completed training records are included in Appendix F of the SWPPP. 4. Begin the required analytical and qualitative monitoring and reporting scheduled upon the next qualifying storm event. o Gold Bond Response: The facility has contracted a certified laboratory to complete the required analytical testing. Sampling equipment has been provided to the facility, however, analytical monitoring has not yet occurred since there has not been a qualified storm event. Analytical monitoring, as well as qualitative monitoring, will be conducted upon the next qualified storm event. 5. Submit discharge monitoring reports for the analytical monitoring as per permit requirements. o Gold Bond Response: Discharge monitoring reports for analytical monitoring will be submitted following analytical monitoring upon the next qualified storm event. Please contact Fred Perard at 813-895-2267 or via email at fredp@goldbondbuilding.com regarding any questions or comments concerning this submittal. Sincerely, Adam Lync Plant Manager Copies: M. Zehringer, Gold Bond J. Sanchez, Arcadis Attachments: 1. DEMLR Notice of Deficiency (NOD-2024-PC-0098) letter, dated May 30, 2024. 2. Gold Bond Mounty Holly Plant Revised SWPPP. 04ARCADIS Gold Bond Building Products, LLC Stormwater Pollution Prevention Plan Mount Holly Plant 1725 Drywall Drive Mount Holly, NC 28120 June 2024 Stormwater Pollution Prevention Plan Stormwater Pollution Prevention Plan Mount Holly Plant 1725 Drywall Drive, Mount Holly, NC 28120 June 2024 Prepared By: Prepared For: Arcadis U.S., Inc. Gold Bond Building Products, LLC 50 Millstone Road, Building 200, Suite 220 East Windsor New Jersey 08520 Phone: 609 860 0590 Fax: 609 448 0890 Our Ref: 30230020 1 . Jeffrey M. Sanchez Senior Engineer This document is intended only for the use of the individual or entity for which it was prepared and may contain information that is privileged, confidential and exempt from disclosure under applicable law.Any dissemination, distribution or copying of this document is strictly prohibited. www.arcadis.com GB Mount Holly NC SWPPP_Final_Jun 2024 i EMERGENCY CONTACT LIST Gold Bond Building Products, LLC Mount Holly, NC A. EMERGENCY COORDINATOR Fred Perard (EHS Manager) Office Phone: 813-895-2267 Mobile Phone: 239-288-1611 B. ALTERNATE EMERGENCY COORDINATORS Michael Thompson (Plant Engineer) Office Phone: 704-398-3940 Mobile Phone: 704-388-8514 Adam Lynch (Plant Manager) Office Phone: 704-964-5091 Mobile Phone: 980-308-3972 C. UNITED STATES ENVIRONMENTAL PROTECTION AGENCY National Response Center: 800-424-8802 (24 hr) USEPA Region 4: 404-562-8700 (24 hr) D. NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY (DEQ) Emergency Response Phone: 800-858-0368 (24 hr) Mooresville Regional Office Phone: 704-235-2100 (Business Hours) E. GASTON COUNTY EMERGENCY MANAGEMENT (LEPC) Emergency Line: 704-866-3004 F. CITY OF MOUNT HOLLY FIRE AND RESCUE DEPARTMENT Phone: 911 or 704-822-2927 (non-emergency) G. CITY OF MOUNT HOLLY POLICE DEPARTMENT Phone: 911 or 704-827-4343 (non-emergency) H. GASTON COUNTY SHERIFF: Phone: 704-869-6800 I. HEPACO (Spill Response Contractor) Phone: 800-888-7689 (24-hour) J. CAROLINA ENVIRONMENTAL RESPONSE TEAM (C.E.R.T.) Phone: 877-505-6799 (24-hour) K. DUKE ENERGY (TRANSFORMER) Phone: 800-343-3525 Corporate Environmental Services Department James Phipps: 704-365-7426 Meghan Zehringer: 704-365-7405 Facility SPPP Certification Statement Gold Bond—Mount Holly Plant Mount Holly, North Carolina Facility Certification "I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information contained therein. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information contained is,to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations." Name and Official Title Adam Lynch, Plant Manager Signature Date Signed Y40-04 (, z, SWPPP Review/ Revision Log Gold Bond Building Products, LLC— Mount Holly Plant Mount Holly, NC Date Description of Review/ Revision Name/Title of Person or Company Making Change Nov 2007 SWPPP developed in accordance with ARCADIS BBL, Inc. General Permit Mar 2015 SWPPP review and update ARCADIS U.S., Inc. Aug 2015 Updated Employee Trainer and Alternate NGC—Todd Adams Emergency Coordinator personnel Mar 2016 Updated Corporate Environmental contact NGC—Todd Adams Mar 2017 Updated Employee Trainer and Alternate NGC—Todd Adams Emergency Coordinator personnel Jan 2019 SWPPP review and update in accordance Arcadis U.S., Inc. with re-issued General Permit Mar 2020 SWPPP amended to include new reclaim Arcadis U.S., Inc. bunker Jun 2024 SWPPP review and update in accordance Arcadis U.S., Inc. with re-issued General Permit Gold Bond Building Products, LLC Mount Holly, NC SWPPP Cross Reference Table CORRESPONDING Contents of General Permit No. NCG 07000 SWPPP SECTION Part A. NCG07 PERMIT COVERAGE -- Part B. STORMWATER POLLUTION PREVENTION PLAN (SWPPP) B-1. Responsible Party 3.1 113-2. General Location Map 4.1, Figure 1 113-3. Site Map 4.1, Figure 2 B-4. Narrative Description of Industrial Processes 4.2, 4.5, Table 1 B-5. Evaluation of Stormwater Outfalls 4.4 13-6. Stormwater BMP Summary 5.2, 5.3 113-7. Secondary Containment Plan 5.1 113-8. Spill Prevention and Response Procedures 5.3.1 B-9. Solvent Management Plan 5.3.2 B-10. Preventative Maintenance and Good Housekeeping Program 5.3.3 13-11. Employee Training 5.3.5 113-12. Representative Outfall Status 6.1 113-13. Devices Exempt from Analytical Monitoring -- B-14. Annual SWPPP Review and Update 3.2 13-15. Notice to Modify the SWPPP 3.2 13-16. SWPPP Documentation 3.2 PART C: OPERATIONAL REQUIREMENTS 5.3.6 PART D: QUALITATIVE MONITORING OF STORMWATER 6.2 PART E: ANALYTICAL MONITORING OF STORMWATER 6.1 PART F: SUBMITTAL OF DISCHARGE MONITORING REPORTS 6 PART G: OTHER OCCURENCES THAT MUST BE REPORTED 6.2.1 PART H: PERMIT ADMINISTRATION -- PART I: COMPLIANCE AND LIABILITY -- PART J. DEFINITIONS -- Stormwater Pollution Prevention Plan Contents 1 Introduction...................................................................................................................................................... 1 1.1 SWPPP Objective..................................................................................................................................... 1 1.2 Planning and Organization..................................................................................................................... 1 2 Facility Information..........................................................................................................................................2 2.1 General......................................................................................................................................................2 2.2 Site Description .......................................................................................................................................2 2.3 Storm Water Drainage System............................................................................................................... 3 3 Pollution Prevention Team ............................................................................................................................. 3 3.1 Pollution Prevention Team ..................................................................................................................... 3 3.2 SWPPP Review and Amendment...........................................................................................................4 4 Potential Pollutant Sources............................................................................................................................ 5 4.1 Site Map.................................................................................................................................................... 5 4.2 Source Material Inventory/ Industrial Processes................................................................................ 6 4.3 Significant Spills and Leaks................................................................................................................... 6 4.4 Identification of Non-Stormwater Discharges...................................................................................... 6 4.5 Summary of Potential Pollutant Sources.............................................................................................. 7 4.5.1 Gypsum Storage Pile........................................................................................................................... 7 4.5.2 Waste Wallboard Storage/Staging Area, Storage Dome, Reclaim Bunker and Truck Wash....... 7 4.5.3 Fuel /Oil Storage ASTs....................................................................................................................... 8 4.5.4 Bulk Liquids Unloading Area.............................................................................................................. 8 4.5.5 Loading and Unloading Areas............................................................................................................ 8 4.5.6 Transformers........................................................................................................................................ 9 4.5.7 Equipment Storage..............................................................................................................................9 4.5.8 Truck Trailer Storage and Parking Areas..........................................................................................9 4.5.9 Chillers.................................................................................................................................................. 9 4.5.10 Storage Silos........................................................................................................................................9 4.5.11 Waste/Trash Containers and Compactor........................................................................................ 9 4.5.12 Dust or particulate generating and control processes.................................................................. 10 5 Stormwater Management Strategy— Measures and Controls.................................................................. 10 5.1 Secondary Containment Requirements and Records....................................................................... 10 5.2 BMP Summary....................................................................................................................................... 11 www.arcadis.com GB Mount Holly NG SWPPP_Final_Jun 2024 III Stormwater Pollution Prevention Plan 5.3 Stormwater Controls............................................................................................................................. 11 5.3.1 Spill Prevention and Response Procedures................................................................................... 11 5.3.2 Solvent Management Plan................................................................................................................ 12 5.3.3 Preventative Maintenance and Good Housekeeping Program..................................................... 13 5.3.4 Facility Inspections ........................................................................................................................... 14 5.3.5 Employee Training............................................................................................................................. 14 5.3.6 Structural BMPs................................................................................................................................. 14 5.3.6.1 Storm Sewer Drains................................................................................................................ 15 5.3.6.2 Extended Wetlands Detention Basins................................................................................... 15 5.3.6.3 Vegetated Swales, Ditches and Natural Depressions......................................................... 15 5.3.6.4 Overhands or Covers.............................................................................................................. 15 5.3.6.5 Secondary Containment Structures...................................................................................... 16 5.3.6.6 BMPs for Vehicle Maintenance Activities............................................................................. 16 6 Monitoring ...................................................................................................................................................... 16 6.1 Analytical Monitoring............................................................................................................................ 16 6.2 Qualitative Monitoring........................................................................................................................... 18 6.2.1 Monitoring Reporting Requirements............................................................................................... 19 6.3 Retention of Records ............................................................................................................................20 Tables Table 2-1. General Facility Information ................................................................................................................. 2 Table 3-1. Pollution Prevention Team.................................................................................................................... 4 Table 4-1. Fuel/Oil Storage ASTs......................................................................................................................... 8 Table5-1 Solvents Inventory................................................................................................................................ 12 Table 6-1 Summary of Quarterly Baseline Sampling Requirements................................................................ 17 Table 6-2 Facility Monitoring Summary............................................................................................................... 19 Tables (attached) Table 1 Potential Pollutant Source Areas www.arcadis.com GB Mount Holly NG SWPPP_Final_Jun 2024 iv Stormwater Pollution Prevention Plan Figures 1. Site Location Map 2. Site Plan Appendices A. General Permit Certificate of Coverage B. Significant Spills or Leaks Form C. Non-Storm Water Discharge Certification D. Facility Inspection Form and Containment Drainage Log E. SPRP Responsibilities F. Training Forms G. Stormwater Monitoring Forms www.arcadis.com GB Mount Holly NC SWPPP_Final_Jun 2024 v Stormwater Pollution Prevention Plan Introduction This Stormwater Pollution Prevention Plan (SWPPP) has been prepared and revised for Gold Bond Building Products, LLC (formerly New NGC, Inc. dba National Gypsum Company) (Gold Bond)—Mount Holly Plant located at 1725 Drywall Drive, Mount Holly, Gaston County, North Carolina (facility). On November 16, 1990, the United States Environmental Protection Agency (USEPA) published regulations that require certain industrial discharges of stormwater to apply for stormwater permits under the National Pollutant Discharge Elimination System (NPDES) program. The USEPA seeks to implement stormwater management programs that will protect water quality. These regulations are contained in Parts 122, 123, and 124 of Section 40 of the Code of Federal Regulations (CFR). Upon approval, the USEPA has granted individual states the authority to establish and implement stormwater programs that conform to federal standards. The USEPA delegated North Carolina authority to administer its NPDES program. North Carolina's Department of Environmental Quality(DEQ) is the primary state agency responsible for environmental programs and stormwater management. The Division of Energy, Mineral and Land Resources is the primary division of DEQ that implements stormwater management. General industrial categories considered involved in industrial activities include facilities classified with Standard Industrial Classification (SIC) 32—Stone, Clay, Glass, and Concrete Products. Applicable requirements for discharging storm water associated with industrial activity are contained in the NPDES General Permit No. NCG070000, effective June 1, 2023, and expires May 31, 2028. This General Permit supersedes the previous General Permit. This SWPPP has been prepared to satisfy the current General Permit requirements. A copy of the General Permit Certificate of Coverage (COC) is provided in Appendix A. A copy of the General Permit is maintained at the facility in the Environmental Health and Safety (EHS) Manager's office. 1 .1 SWPPP Objective The objective of the SWPPP is to minimize the number and amounts of pollutants in storm water runoff leaving the facility. This plan identifies potential sources of pollution which may reasonably be expected to affect the quality of storm water discharges associated with industrial activity at the site. Gold Bond will implement Best Management Practices (BMPs)that will control potential pollutant runoff from the facility's property. Gold Bond is confident that the use of BMPs will have the desired effect of protecting the environment to the extent practical and meeting the federal storm water management requirements. 1 .2 Planning and Organization This plan incorporates storm water management provisions specified in relevant regulations and the General Permit. The plan also identifies the roles and responsibilities of designated storm water pollution prevention team members. A copy of the SWPPP is maintained at the facility in the EHS Manager's office. A SWPPP Cross Reference Table is maintained at the front of this SWPPP. www.arcadis.com GB Mount Holly NG SWPPP_Final_Jun 2024 Stormwater Pollution Prevention Plan 2 Facility Information 2.1 General Key facility information is presented below. Table 2-1. General Facility Information Name and Gold Bond Building Products, LLC Address of 1725 Drywall Drive Facility: Mount Holly, NC 28120 Facility Mailing Same as above Address: Facility Phone 704-398-3900 Number: SIC Code: 3275 (gypsum products) SWPPP Contact: Fred Perard— EHS Manager 2.2 Site Description The Gold Bond Mount Holly facility is located at 1725 Drywall Drive, Mount Holly, North Carolina. A Site Location Map is included as Figure 1. The Gold Bond Mount Holly facility is a wallboard manufacturing plant that started operations in September 2007. The facility consists primarily of a main manufacturing building, gypsum material storage area, paved parking areas. The manufacturing facility processes raw materials into building products such as wallboard. Chemicals used in the manufacturing process are primarily stored in aboveground storage tanks (ASTs)and portable totes. There are no underground storage tanks (USTs) located at the facility. The Gold Bond Mount Holly facility is located approximately 2,000 feet west of the Catawba River. Based on a review of the DEQ Stormwater Interactive Maps, the facility is located within the Catawba River Basin, which includes the Lake Wylie Total Maximum Daily Load (TMDL)for total nitrogen and phosphorus, as well as fecal coliform. The Catawba River is considered an impaired water, as listed in the 2022 North Carolina Final 303(d) list, specifically for PCB Fish Tissue Advisory in the river section—From Mountain Island Dam to Interstate Highway 85 Bridge at Belmont. www.arcadis.com GB Mount Holly NG SWPPP_Final_Jun 2024 2 Stormwater Pollution Prevention Plan 2.3 Storm Water Drainage System Stormwater runoff from the facility is routed through three outfalls. Outfalls 1 A and 1 B are located on the South side of the facility at the discharge of the extended wetland detention basin #1 (Basin #1). Outfall 1A discharges on the south side of the basin, and Outfall 1 B discharges east-southeast of the basin. Drainage from the northwest, west and south sides of the facility flow toward Basin #1. Outfall 2 is located on the East side of the facility at the discharge of extended wetland detention basin #2 (Basin #2). Drainage from the north, northeast and east sides of the facility flow toward Basin #2. Discharge from these outfalls eventually leads to the Catawba River. Stormwater runoff from the building roofs is captured in rain gutters and discharged through a series of rain spouts, located at various points along the perimeter of each building, to asphalt paved areas. Then, the stormwater flows into the storm drains in the paved areas that lead to the extended wetland detention basins. The stormwater drainage flow of the site is shown on Figure 2. Stormwater is conveyed from the site by a combination of sheet flow and underground sewer piping. Paved areas at the facility are sloped to route run-off into storm drains. In the event of a release, paved and unpaved areas within the plant would direct the flow primarily toward two extended wetland detention ponds. A volume of up to 55,000 gallons could be stored in each detention pond. Pollution Prevention Team 3.1 Pollution Prevention Team Table 3-1, below, identifies storm water pollution prevention team members and their associated responsibilities for developing and implementing the SWPPP. The Plan Manager/Team Leader and all members of the team are responsible for reducing storm water pollution at the facility. The Team Leader(Plant Manager) is responsible for the overall coordination, development, implementation, and revision of the SWPPP. The team members are responsible not only for assisting the Team Leader in plan implementation but for maintaining and revising the plan, as required. Team members have broad areas of expertise and share knowledge to collectively decide what works best for the facility. Specific duties of each member are as follows: • Plan Manager/Team Leader-The Plant Manager assumes the role as the Team Leader. This individual has been identified as the key person onsite who is most familiar with the facility and its operations. As leader of the team, he/she is responsible for providing adequate structure and direction to the facility's entire storm water management program. The primary alternate for the Pollution Prevention Team Leader is the EHS Manager. • Recordkeeper-The EHS Manager is the recordkeeper for the plan. This individual is familiar with the storm water controls onsite. Therefore, this person is in the position to keep records and gather reports of all storm water-related activities. The person is also responsible for being additional points of contact for those outside the facility who may need to discuss aspects of the facility's SWPPP (e.g., regulatory officials). Recordkeeping is conducted in accordance with Section 6.3 of this SWPPP. www.arcadis.com GB Mount Holly NG SWPPP_Final_Jun 2024 3 Stormwater Pollution Prevention Plan • Employee Trainer-The EHS Manager serves as the SWPPP Employee Trainer. Since his/her normal duties include training employees on safety procedures, quality management, and operating procedures, he/she is best-qualified to conduct the training concerning facility management of storm water in accordance with Section 5.4.4 of this SWPPP. • Site Inspectors -The Plant Engineer or designee will be responsible for making routine visual inspections of the various operational and support areas in accordance with Section 5.4.3 of this SWPPP. Inspections identify items or activities that may introduce contaminants to stormwater. The site inspectors will advise the Plan Manager regarding identification of pollutant sources and risks, and decision-making on appropriate BMPs. The actual implementation of the recommended BMPs and evaluating the effectiveness of the plan will be performed jointly by all team members. Table 3-1. Pollution Prevention Team ResponsibilityName & Phone Number Title Adam Lynch Plant Manager Plan Manager/Team Leader—Responsible for Office: 704-964-5091 providing adequate structure and direction to the facility's storm water management program. Cell: 980-308-3972 Fred Perard EHS Manager Recordkeeper—Responsible for keeping records Office: 813-895-2267 and gathering reports; and also being an additional point of contact for those outside the facility(e.g., Cell: 239-288-1611 neighbors, regulatory officials). Fred Perard EHS Manager Employee Trainer—Responsible for training Office: 813-895-2267 employees on safety procedures, quality management, and operating procedures as it relates Cell: 239-288-1611 to storm water management. Michael Thompson Plant Engineer Site Inspector(s)—Responsible for making visual Office: 704-398-3940 inspections of relevant areas. The inspection will identify items or activities that may introduce Cell: 704-388-8514 contaminants to storm water. 3.2 SWPPP Review and Amendment All aspects of the SWPPP shall be reviewed and updated on an annual basis. The permittee shall amend the SWPPP whenever there is a change in design, construction, operation, site drainage, maintenance, or configuration of the physical features which may have a significant effect on the potential for the discharge of pollutants to surface waters. In addition, the SWPPP update shall include a review and comparison of sample analytical data to benchmark values (if applicable) over the past year, including a discussion about Tiered Response status. The permittee shall use DEMLR's Annual Summary Data Monitoring Report (DMR)form, available from the Stormwater Permitting www.arcadis.com GB Mount Holly NG SWPPP_Final_Jun 2024 4 Stormwater Pollution Prevention Plan Program's website (https://deg.nc.gov/about/divisions/energy-mineral-land-resources/npdes-stormwater-qps). See also Appendix G of this SWPPP. The DEQ may notify the facility when the SWPPP does not meet one or more of the minimum requirements of the permit. Within 30 days of such notice, the permittee shall submit a time schedule to the Director for modifying the SWPPP to meet minimum requirements. The permittee shall provide certification in writing to the DEQ that the changes have been made. The SWPPP must also be amended whenever there is a change in design, construction, operation, site drainage, maintenance, or configuration of the physical features which may have a significant effect on the potential for the discharge of pollutants to surface waters. A Review/ Revision Log is located at the front of this SWPPP. Copies of the SWPPP shall be maintained on-site and be available electronically to the Division of Energy, Mineral, and Land Resources (DEMLR) upon request. These records or copies shall be maintained for a period of at least five years. 4 Potential Pollutant Sources This section describes facility activities, materials, and physical features that have the potential to contribute pollutants to storm water runoff. 4.1 General Location Map and Site Map Figure 1 illustrates the following features: • The facility's location in relation to transportation routes and surface waters, • The name of the receiving waters to which the stormwater outfalls discharge, • Any impaired receiving waters, and • If the site is in a watershed for which a TMDL has been established, a list of the parameter(s) of concern (those exceeding water quality standards). Figure 2 illustrates the following features: • Site property boundary, • Site topography, • Buildings, roads, parking areas and other built-upon areas, • Industrial activity areas (including, but not limited to: vehicle maintenance activities, waste disposal activities, storage of materials, disposal areas, process areas, loading and unloading areas, and haul roads) • Stormwater discharge outfalls and a table of latitudes and longitudes; • Delineated drainage area for each outfall and a table of impervious percentage for each drainage area, • Stormwater Control Measures (SCMs), • All stormwater collection/drainage features, structures and direction of flow, www.arcadis.com GB Mount Holly NG SWPPP_Final_Jun 2024 5 Stormwater Pollution Prevention Plan • On-site and adjacent surface waters and wetlands, and • A graphic scale and north arrow. 4.2 Source Material Inventory / Industrial Processes Potential contributors to storm water pollution identified at the facility include: • bulk gypsum storage/dome area and truck wash, • waste storage/staging areas and reclaim bunker, • diesel fuel storage and fueling, • chemical unloading, • loading and unloading areas, • transformers, • equipment storage, • truck trailer storage areas, and • dust or particulate generating and control processes. Material and pollutants that may contribute to storm water runoff are gypsum, diesel fuel, oils and grease, hydraulic fluid, transformer oil, sediment, starch and potash stored outside the manufacturing building. A description of each of the potential pollutant sources and potential pollutants is presented in Section 4.5 and Table 1. 4.3 Significant Spills and Leaks The General Permit requires documentation of significant spills or leaks of pollutants that have occurred in facility areas exposed to precipitation or runoff and any corrective actions taken to mitigate spill impacts. The list of spills and leaks must be updated as appropriate. Significant spills include, but are not limited to, releases of oil or hazardous substances in excess of reportable quantities. The General Permit requires documentation of significant spills or leaks of pollutants that have occurred in facility areas exposed to precipitation or runoff and any corrective actions taken to mitigate spill impacts. The list of spills and leaks must be updated as appropriate. Significant spills include, but are not limited to, releases of oil or hazardous substances in excess of reportable quantities. No significant spills have occurred at the facility in the last three years. An example table for recording significant spills or leaks is included as Appendix B. 4.4 Identification of Non-Stormwater Discharges On an annual basis, the facility must evaluate all stormwater outfalls for the presence of non-stormwater discharges. If non-stormwater discharges are present, the facility must identify the source and record whether the discharge is otherwise permitted by rule or a different permit. The facility must evaluate the environmental significance of the non-stormwater discharges and include a summary written record and certification statement. www.arcadis.com GB Mount Holly NG SWPPP_Final_Jun 2024 6 Stormwater Pollution Prevention Plan The certification statement and summary written record shall be retained with the SWPPP, and shall be dated and signed in accordance with the requirements of the General Permit. The completed certification of non-stormwater discharge assessment, along with a blank form, is included in Appendix C. Non-stormwater discharges which shall be allowed in the stormwater conveyance system include: • All other discharges that are authorized by a non-stormwater NPDES permit. • Uncontaminated groundwater, foundation drains, air-conditioner condensate without added chemicals, springs, discharges of uncontaminated potable water, waterline and fire hydrant flushings, water from footing drains, irrigation waters, flows from riparian habitats and wetlands. • Discharges resulting from firefighting, or emergency shower or eye wash as a result of use in the event of an emergency. 4.5 Summary of Potential Pollutant Sources Specific areas of pollutant sources identified at the plant that pose the greatest risk to impacting stormwater are discussed in this section and Table 1, and also shown on Figure 2. 4.5.1 Gypsum Storage Pile Gypsum used in the manufacturing process is received by trucks and staged outside in an open bulk pile located on the east side of the facility. The gypsum is transferred into the plant or storage dome using a loader and conveyor system for use in the manufacturing process. A rip rap drainage ditch surrounds the pile, except along a portion of the west and southwest sides to allow access to the pile. The rip rap ditch controls runoff from the pile and discharges to Basin#2. Potential pollutants associated with storm water runoff from the uncovered bulk gypsum storage pile primarily include total suspended solids. 4.5.2 Waste Wallboard Storage/Staging Area, Storage Dome, Reclaim Bunker and Truck Wash Off-spec wallboard, generated during processing activities, is temporarily staged in the off-spec wallboard storage area inside the facility building at the north end. The off-spec wallboard is then transferred with a loader to the storage dome to be recycled back into the manufacturing process. The off-spec wallboard storage area is open on one side to allow loader access and transfer of the off-spec wallboard to the storage dome. Off-spec wallboard dispersion that may occur during transfer activities is swept back into the storage area. The potential exists for runoff from off-spec wallboard to come into contact with storm water during a precipitation event. The dome area next to the storage pile area stores reclaimed wallboard that is to be reused in the process. The dome area is covered and drains toward Basin#1. A reclaim storage bunker was added in late 2019 to store off-spec reclaimed wallboard. Reclaimed wallboard is received from the facility building and loaded into the bunker. The bunker consists of an area bermed on three sides by concrete blocks. There is one open side (to the south/southeast)to allow loader access and transfer of off-spec wallboard in and out of the bunker. Off-spec wallboard dispersion that may occur during transfer activities www.arcadis.com GB Mount Holly NC SWPPP_Final_Jun 2024 7 Stormwater Pollution Prevention Plan is swept back into the bunker area. The potential exists for runoff from off-spec wallboard to come into contact with storm water during a precipitation event. The truck wash area next to the storage dome is a self-contained wash area. No detergents are used. Wash water used is collected within the wash area and used again. Currently, the truck wash area is not operational and is in need of repairs. The facility is assessing this area to determine an appropriate schedule for repairs/ upgrades. The truck wash is planned to be operational by the end of 2024. In the interim, the facility maintains a sweeper that cleans the facility access roads on a daily basis, from the truck wash area north to Route 273. 4.5.3 Fuel / Oil Storage ASTs The facility has several outside ASTs containing diesel fuel. The ASTs are identified below in Table 4-1. Table 4-1. Fuel/Oil Storage ASTs 50,000 (2) Empty, not in service 7Northeastde of plant 525 Diesel fuel de of plant(contractor) 60 Diesel fuel Northeast side of plant 495 Diesel fuel East side, storage pile area 1,000 Diesel fuel East side, storage pile area 300 Used oil South side of plant 172 Diesel fuel West side of plant 509 Diesel fuel West side, fire pumphouse 500 Diesel fuel South end of facility (temporary, contractor) 200 Diesel fuel South end of facility (temporary, contractor) ASTs are double-walled steel tanks, except for the pumphouse AST, which is a steel tank located inside the pumphouse within a concrete containment area. Therefore, fuel containment areas do not collect rainwater. Products are delivered to the facility via tank truck and are gauged before and after the transfer of the product to the ASTs. Personnel are present during transfer activities and spill kits are located in the vicinity of the AST areas. 4.5.4 Bulk Liquids Unloading Area Liquid process materials (e.g., soap, dispersant) are brought to the bulk storage tanks located inside on the southeast side of the manufacturing building. Potential for release would include spills from the delivery truck. Gold Bond requires drivers to stay with the truck at all times during operation, follow loading/unloading procedures and have spill response equipment readily accessible. 4.5.5 Loading and Unloading Areas Raw materials are delivered to the facility by truck in sealed containers. The raw materials are primarily unloaded at the facility's loading/unloading docks located on the southeast side of the facility. The delivery trucks back into the building loading dock area, minimizing outside exposure during transfer activities. From the loading dock, the www.arcadis.com GB Mount Holly NG SWPPP_Final_Jun 2024 8 Stormwater Pollution Prevention Plan material is moved inside the building to the storage areas. Since the management of raw materials is primarily inside the main building, there is little potential for the material to come into contact with precipitation. Although very minimal, the potential exists for raw material to enter the storm water system in the unlikely event of container rupture and spilling outside the unloading dock area. Finished wallboard is moved from the processing area to the product warehouse located inside the building. Product is then loaded onto trucks at the shipping loading area for offsite shipment. Product loading activities occur at a covered loading dock. Since finished parts are solid materials, minimal potential for storm water impact exists in the event product is dropped from the loading area outside the building. 4.5.6 Transformers The facility contains several pad-mounted oil-filled transformers at various outdoor locations that are owned, operated, and maintained by Gold Bond. A utility substation is also located on the south side of the facility, and is owned, operated, and maintained by the local utility. The potential exists for transformer oil to come into contact with storm water from a transformer leak. 4.5.7 Equipment Storage Various equipment (e.g., piping, machine parts, pallets) are temporarily stored on the southeast side of the facility. Any equipment is cleaned inside the building prior to storage outside and removal offsite. 4.5.8 Truck Trailer Storage and Parking Areas Truck trailers are stored outside on the east side of the manufacturing building. Trailers are maintained clean and the area is not expected to be a source of pollutants. 4.5.9 Chillers Facility chillers are located outside on the southwest side of the manufacturing building, near the front office. The chillers are located within a concrete-bermed area and use a 20% glycol-water mixture. Rainwater that accumulates in the bermed area is inspected for contamination. If any contamination is observed, the liquid is pumped out by an outside contractor for disposal offsite. 4.5.10 Storage Silos The facility maintains two dry storage silos (each approximately 14,000 cubic feet)on the southeast side of the facility along the railroad tracks. Each silo is fully enclosed. One silo stores potash and the other silo stores starch. Materials are received by railcar, and then transferred from the silos to the manufacturing building via piping. There is potential exposure to stormwater during transfer activities. 4.5.11 Waste / Trash Containers and Compactor There are several waste dumpsters located outside on the southeast side of the facility along the railroad tracks. The containers primarily collect general trash materials. The containers are used on almost a continuous basis so personnel are present to help keep this area clean. www.arcadis.com GB Mount Holly NC SWPPP_Final_Jun 2024 9 Stormwater Pollution Prevention Plan A trash compactor is also located on the southeast side of the building at the loading docks. The compactor is a fully enclosed unit and contains a hydraulic oil reservoir to power the equipment. The unit is regularly maintained at the facility and the area is frequented by personnel, however, the potential for pollutants exists from leaks from the hydraulic reservoir, which is situated over the loading dock trench drain. The facility is evaluating this area and formulating a plan to potentially relocate the hydraulic unit inside the building. 4.5.12 Dust or Particulate Generating and Control Processes The facility has several baghouses located inside the mill building on the southwest side of the plant and are not exposed to stormwater. There are eleven baghouses in total —two per each Imp Mill (#1, #2, #3), totaling six baghouses; two baghouses in the cage mill; and one baghouse for the BET (#1, #2, #3), totaling 3 baghouses. The units are maintained and inspected per the facility's air permit. Baghouses are inspected daily for residual dust and bags are changes out as needed, but at least annually. Other areas are discussed in Sections 4.5.1 and 4.5.2. 5 Stormwater Management Strategy - Measures and Controls The Stormwater Management Strategy contains a narrative description of the materials management practices employed which control or minimize the stormwater exposure of significant materials, including structural and nonstructural measures. Pollution prevention measures and BMPs include spill prevention and response procedures, preventative maintenance and good housekeeping, facility inspections, employee training, and other structural and/or managerial measures that are intended to eliminate or minimize pollution to surface waters. 5.1 Secondary Containment Requirements and Records Secondary containment is required for bulk storage of liquid materials including petroleum products, storage in any amount of Section 313 of Title III of the Superfund Amendments and Reauthorization Act (SARA)water priority chemicals, and storage in any amount of hazardous substances, in order to prevent leaks and spills from contaminating stormwater runoff. Petroleum ASTs at the Gold Bond Mount Holly facility are double-walled ASTs, except the diesel fuel pumphouse AST, which is located inside the pumphouse building within a concrete containment area. A summary of petroleum ASTs is provided in Section 4.5.3. Other bulk chemical storage areas are contained inside the manufacturing building. Therefore, secondary containment areas for bulk storage of liquids are not exposed to stormwater. The facility also maintains a Spill Prevention Control and Countermeasures (SPCC) Plan that addresses containment requirements for petroleum ASTs. In the event that any new secondary containment for bulk liquids storage is exposed to stormwater in the future, any stormwater that accumulates in the containment area would be visually observed for color, foam, outfall staining, visible sheens and dry weather flow, prior to release of the accumulated stormwater. Accumulated stormwater would be released if found to be uncontaminated by any material. www.arcadis.com GB Mount Holly NG SWPPP_Final_Jun 2024 10 Stormwater Pollution Prevention Plan If needed in the future, a form for the inspection of accumulated stormwater in secondary containment areas is provided in Appendix D. 5.2 BMP Summary Table 1 lists the potential pollutant sources, identified in Section 4.5, the associated potential pollutants, and associated preventative measures and BMPs to eliminate or reduce pollutant loadings to storm water. A description and implementation of the preventative measures and BMPs are discussed in the following sections. 5.3 Stormwater Controls The facility uses both non-structural and structural controls to minimize or eliminate potential pollution sources. Non-structural controls include but are not limited to spill prevention and response, preventive maintenance and good housekeeping, facility inspections, and employee training. Structural controls include but are not limited to catch basins, ponds or other management structures. Both non-structural and structural controls are described below. 5.3.1 Spill Prevention and Response Procedures The potential for leaks, spills, and other release that may be exposed to storm water are minimized through preventative maintenance and inspections. Plant employees and materials unloading personnel are trained in proper transfer procedures and in avoiding careless spills of materials. Secondary containment and other containment measures are provided for outdoor fuel storage areas and transformers, which are noted on Figure 2. Spill prevention and response is implemented through the facility's SPCC Plan. Spill prevention and response practices are administered for relevant areas of the facility. Emergency response and notification procedures are outlined in the SPCC Plan. In accordance with the facility's SPCC Plan, storage tanks and containers are routinely inspected for leaks and repaired as required. Similar spill prevention and response procedures are applied to other liquid storage/transfer areas where there is the potential for stormwater exposure (such as the bulk chemical unloading area). Personnel are trained in the use of spill response kits. These kits contain items that can be used to contain and clean up the spill or leak of any material used onsite. Items in these kits include: absorbent booms, absorbent pads and pillows, portable containment drums, absorbent particulate material, as well as shovels, brooms, and mops. Additional safety items may include gloves, goggles, helmets, respirators, and fire extinguishers. Spill kits are located at the mill, the water pump house near the dome, the shipping warehouse and the supervisor's office near the boardline. Spill prevention and response is outlined in more detail within the facility SPCC Plan. Training is conducted annually. In the event of a spill, the Plant Manager will provide instructions for appropriately responding to the situation. In the event of a larger spill that cannot be adequately contained by plant personnel, an outside contractor would be retained to respond to the incident. Internal and external notification contacts are included in the Emergency Contact List at the front of the SWPPP. After the spill has been cleaned up, any used absorbent materials will be www.arcadis.com GB Mount Holly NC SWPPP_Final_Jun 2024 11 Stormwater Pollution Prevention Plan placed in bags or drums for storage indoors and disposal offsite. The Emergency Coordinator would coordinate and arrange for proper disposal of recovered materials in accordance with federal, state and local requirements. SPRP personnel and summary responsibilities are provided in Appendix E, along with signed and dated acknowledgement in which staff members accept responsibilities for the SPRP. A responsible person from the SPRP personnel team will be on-site at all times during facility operations that have potential to contaminate stormwater runoff through spills or exposure of materials associated with the facility operations. No significant spills (such as releases of oil or hazardous substances in excess of reportable quantities) have occurred at the facility in the last three years. An example table for recording significant spills or leaks is included as Appendix B. This list must be updated on an annual basis. 5.3.. Solvent Management Plan A Solvent Management Plan (SMP) is included in this section, which includes an annually updated and quantified inventory of solvents (Table 5-1 below) present on site during the previous three years; a narrative description of the facility locations and uses of solvents; the method of disposal, including quantities disposed on-site and off- site; and the management procedures and engineering measures for assuring that solvents do not spill or leak into stormwater. Table 5-1 Solvents Inventory PB Blaster 8 oz cans, 10— 12 cans Flammable storage cabinet inside Maintenance Shop Degreaser 8 oz cans, 10— 12 cans Flammable storage cabinet inside Maintenance Shop Acetone 1 quart can, 4-6 cans Flammable storage cabinet inside Maintenance Shop WD40 15 oz cans, 8-10 cans Flammable storage cabinet inside Maintenance Shop QD Contact Cleaner 11 oz cans, 10— 12 cans Flammable storage cabinet inside Maintenance Shop All solvents are stored indoors in the maintenance shop in a flammable storage cabinet. PB blaster and degreaser are used to help with loosening fasteners or bolts. Acetone is used to help with removing adhesives, oil stains, and paint. WD40 is used to help with dissolving grease and oil on various parts. QD Contact Cleaner is used to help with cleaning sensitive electronics. All solvents are used indoors. Solvents are normally used until the containers are empty. Used solvent cans are placed in a can puncturing device inside the facility to empty cans. Used solvent is collected in a 55-gallon drum inside the building and then characterized and picked up by vendor for disposal offsite in accordance with federal and state regulations. Empty cans are then placed in a scrap metal hopper inside the plant. The metal hopper is then dumped into a scrap metal dumpster outside with no residual liquids. The dumpster is then picked up when full by an outside vendor for recycling, typically once a month. www.arcadis.com GB Mount Holly NG SWPPP_Final_Jun 2024 12 Stormwater Pollution Prevention Plan Solvents are brought onsite in sealed packaging via trucks and unloaded at the loading dock area with no exposure to stormwater. All solvents are stored and used indoors. Solvent containers are maintained closed when not in use and stored inside a flammable storage cabinet. Any spills or leaks from containers are promptly cleaned up. Waste materials are placed in a hopper inside the plant and then transferred to a scrap metal dumpster outside prior to pick up and removal offsite. The General Permit requires a signed certification statement be included with each discharge monitoring report. See certification statement in Appendix G. 5.3.3 Preventative Maintenance and Good Housekeeping Program A good preventive maintenance and housekeeping program includes a schedule of routine inspections, testing and cleaning to prevent equipment failures and deterioration and to also reduce the possibility of accidental spills and stormwater pollution. A preventive maintenance program includes upkeep and maintenance of storm water management devices, as well as identification and inspection of equipment, systems, and facility areas that could contribute to storm water contamination in event of failure or malfunction. To achieve the objectives of the SWPPP, routine preventive maintenance activities are performed by the skilled tradesmen, equipment operators, and/or engineers. Good housekeeping measures are maintained at all of the listed source areas and throughout the facility. The source areas are required to be swept on a routine basis to collect residual solids that may accumulate in the source areas. Unexpected leaks or spills of materials other than solids will be cleaned up immediately with supplied spill kits or absorbents, as appropriate. Onsite personnel will monitor the delivery and transfer of fuel. In the event of a spill, emergency response procedures outlined in the facility SPCC Plan will be initiated to contain a spill and minimize the potential for impact to the surface waters in the vicinity. After the spill has been cleaned up, any used absorbent materials will be placed in bags or drums for storage indoors and disposal offsite. Similarly, any spent lubricants or fuels will be placed in drums for storage indoors and recylcling or disposal offsite The Emergency Coordinator would coordinate and arrange for proper disposal of recovered materials and spent oils or fuels in accordance with federal, state and local requirements. The preventive maintenance and good housekeeping program covers the following items: • inspection and maintenance of the gypsum conveyor system; • AST system maintenance and inspections as indicated in the facility SPCC Plan, including spill response equipment; • clean-out stormwater conveyances/outfalls, as appropriate. • routine sweeping of process and storage areas; • regular pickup and disposal of garbage and debris; • routine outside inspection of loading docks and storage areas; • proper material container storage practices; • identification and labeling of all chemical substances; • disposal of old equipment and used chemicals; and • collection and pickup of solid and hazardous wastes. www.arcadis.com GB Mount Holly NC SWPPP_Final_Jun 2024 13 Stormwater Pollution Prevention Plan Facility inspections must be conducted at least quarterly, however, Gold Bond inspects more frequently as provided in the next section. 5.3.4 Facility Inspections The General Permit requires quarterly inspections (January-March, April-June, July-September, October- December). Gold Bond conducts visual inspections monthly covering potential pollutant areas exposed to storm water as listed in Section 4.5. The inspections are generally performed with SPCC inspections and documented including follow-up procedures if determined necessary. An example inspection form is included in Appendix D. Completed inspection forms are maintained with this plan. Routine visual inspections are closely related to both good housekeeping and preventative maintenance, identifying anything that needs to be replaced, repaired, or added to the area in order to avoid exposure of stormwater to contaminants. Equipment, storage and unloading areas are also subject to regular maintenance and inspection. Fuel storage areas are inspected in accordance with the facility SPCC Plan. Containment areas are checked for accumulated stormwater following precipitation events. 5.3.5 Employee Training Each member of the pollution prevention team will undergo an orientation familiarizing them with the intent and goals of the SWPPP. The training involves general stormwater awareness, the purpose of the SWPPP, the potential pollutant source areas onsite and related best management practices (spill response procedures, good housekeeping, preventative maintenance, material management and inspections), proper monitoring and reporting procedures, unauthorized discharges, and identifying maintenance needs and corrective actions. Training also covers used oil management, spent solvent management, secondary containment releases, fueling procedures, process water versus stormwater, and used battery management. Routine sessions that allow the team members to exchange ideas on how to reduce the potential storm water contamination from the facility will be held, as needed, between SWPPP team members. In addition, other plant employees will be given instructions to regularly check operating equipment and tanks for leaking or loose connections and to repair them as required. Employees are also given procedures to follow in the event of a spill or leak onsite. It is intended that personnel will have a heightened sense of awareness concerning environmental hazards and potential pollutant sources. SWPPP training is conducted annually and provided by the facility's EHS Manager. A training outline and record is provided in Appendix F. 5.3.6 Structural BMPs Typical structural controls are designed to treat, divert, or retain storm water runoff. They may require more frequent inspection and maintenance. Structural controls include measures such as storm sewer drains, storm water detention basins, vegetated swales, ditches, infiltration of runoff, and secondary containment systems. www.arcadis.com GB Mount Holly NC SWPPP_Final_Jun 2024 14 Stormwater Pollution Prevention Plan 5.3.6.1 Storm Sewer Drains Figure 2 shows the storm sewer drains that are present at the facility, including those along the parking areas east and south of the manufacturing building and those near the gypsum storage/dome area. Grates covering the storm drain inlets prevent large objects (greater than approximately 2 inches in diameter)from entering the subsurface conveyance system. Stormwater that enters the subsurface conveyance system is conveyed to one of the two extended wetlands detention basins. 5.3.6.2 Extended Wetlands Detention Basins The facility contains two extended wetlands detention basins for sediment control and natural filtration. Basin 1 is located on the south side of the property and receives drainage from the south side of the manufacturing building area and gypsum storage dome area. There are two discharge points associated with Basin 1. Outfall 1A discharges on the south side of the basin, and Outfall 1 B discharges east-southeast of the basin. Basin 2 is located on the east side of the property and receives drainage from the east side of the manufacturing building area and north side of the gypsum storage area. The outlet of Basin 2 discharges to a riprap spillway whose exit is Outfall 2. The General Permit indicates that stormwater control measures, such as the basins, must be cleaned out when sediment storage capacity equals or exceeds 50 percent of the design sediment volume or if visible sedimentation is leaving the property. The facility will take corrective actions if self-inspections identify a need for corrective actions, a facility fails to perform satisfactorily, or a facility creates nuisance conditions. Corrective actions include, but are not limited to: maintenance, modifications, or additions to existing control measures, the construction of additional or replacement treatment or disposal facilities, or implementation of new BMPs. Corrective actions must be completed as soon as possible considering adverse weather and site conditions. 5.3.6.3 Vegetated Swales, Ditches and Natural Depressions Stormwater swales/ditches are located along the west and northeast sides of the manufacturing building. There are also various vegetated natural depressions on the west and south sides of the manufacturing building. A riprap drainage ditch also surrounds the majority of the gypsum storage pile area, and there are additional riprap ditches south of the gypsum storage dome area. These stormwater controls help with sediment control, promote natural infiltration, and reduce the amount and flow velocity of stormwater runoff. 5.3.6.4 Overhands or Covers Partial or total covering of materials, equipment, or process operations prevents contact of potential pollutants with stormwater. Covering may be temporary such as with a tarpaulin, or it may be permanent. Permanent covers may include a roof only or complete enclosure in a building with walls and roof. The off-spec wallboard staging area located at the north end of the manufacturing building is roofed, providing protection from stormwater exposure. www.arcadis.com GB Mount Holly NG SWPPP_Final_Jun 2024 15 Stormwater Pollution Prevention Plan 5.3.6.5 Secondary Containment Structures Fuel storage tanks located outside are enclosed double-walled tanks where no rainwater can accumulate in the containment areas. The diesel fuel pumphouse AST is located inside the pumphouse building within a concrete containment area. Other bulk chemical storage areas are contained inside the manufacturing building. The reclaim bunker is bermed on three sides to contain material within the bunker. There is one open side to allow for loader access and transfer of materials. Good housekeeping and inspections are performed at the bunker to maintain reclaimed material within the bunker area. 5.3.6.6 BMPs for Vehicle Maintenance Activities Vehicle maintenance activities such as repairs are conducted inside the building. Vehicle fueling is conducted outdoors at fuel storage tanks and BMPs are discussed in Section 4.5.3. The truck wash area is described further in Section 4.5.2. 6 Monitoring The General Permit discusses quantitative and qualitative monitoring requirements of stormwater. Each is described below. 6.1 Analytical Monitoring The facility performs baseline sampling of all stormwater discharge outfalls and/or authorized representative discharge outfalls. Grab samples are collected, analyzed, and reported for the following parameters: • Total Suspended Solids (TSS) and • pH. In addition, grab samples must be analyzed for Non-Polar Oil & Grease in vehicle or equipment maintenance areas in which more than 55 gallons of new motor oil and/or hydraulic oil per month is used when averaged over the calendar year. The NGC Gold Bond Mount Holly facility does not perform vehicle and/or equipment maintenance outside, or use more than 55 gallons of new motor oil and/or hydraulic oil per month on average for the year. Therefore, analytical monitoring for oil &grease is not required. The average monthly usage of new motor and hydraulic oil used for vehicle maintenance at the facility should be tracked and recorded. The total rainfall amount for each sampling event is recorded in inches. Total rainfall must be determined from an on-site rain gauge or a regional rain gauge located within one (1) mile of the facility. Samples are collected from four separate monitoring periods per year. A minimum of thirty (30)days must separate any two sampling events during the following periods: • January 1 — March 31 • April 1 —June 30 • July 1 —September 30. • October 1 — December 31 www.arcadis.com GB Mount Holly NG SWPPP_Final_Jun 2024 16 Stormwater Pollution Prevention Plan Analytic results for each parameter are compared to the benchmark values for the appropriate receiving stream classification as provided in Table 6-1. An exceedance of a benchmark value is not a permit violation; however, failure to respond in accordance with E-2(b) below is a permit violation. Table 6-1 Summary of Quarterly Baseline Sampling Requirements SEEL- CO530 Total Suspended Solids (TSS) 100 mg/L 400 pH 6.0—9.0 46529 Total Rainfall of Sampled Event Inches (Inches) NCOIL Average Monthly Oil Usage at the Gallons/month Facility Sample Collection Outfall monitoring efforts must begin with the first measurable storm event in the monitoring period that occurs during the facility's normal operating hours. Sampling is not required to be performed during adverse weather conditions. Samples collected will be characteristic of the volume and nature of the permitted discharge. Grab samples are collected within the first 30 minutes of discharge from an outfall and continue until all outfalls that are discharging have been sampled. Outfalls that are not sampled during the first measurable storm event in the monitoring period must be sampled during the next measurable storm event in the monitoring period until a sample has been collected. If, during the entire monitoring period, there is no discharge from an outfall during any measurable storm event then the facility must: • Report"No Discharge" in the DMR, • Note "No Discharge" in the SWPPP, and • Submit the DMR within 30 days after the end of the monitoring period. Lack of a discharge from an outfall for the monitoring period does not constitute failure to monitor as long as the above permit conditions are met. If the sampled storm event coincides with a known non-stormwater discharge that is deemed permitted under 15A NCAC 02 .0106, then this shall be noted on the DMR. Analytical results within the monitoring period shall be submitted no later than 30 days from the date the facility receives all the sampling results. Samples analyzed in accordance with the terms of the General Permit are recorded on DMR forms provided by DELMR. See Appendix G for DMR forms and instructions. Sampling Locations www.arcadis.com GB Mount Holly NG SWPPP_Final_Jun 2024 17 Stormwater Pollution Prevention Plan Samples are collected at all stormwater discharge outfalls (SDO)that discharge stormwater associated with industrial activity. If DEMLR has issued a representative outfall status approval letter, then the permittee shall collect samples from all SDOs in accordance with the SDO approval letter. All samples are taken before the discharge joins or is diluted by any other waste stream, body of water, or substance. Monitoring points as specified in the General Permit cannot be changed without written notification to and approval by DEMLR. Tiered Responses An exceedance of any benchmark value requires a tiered response for that outfall. A single exceedance of a benchmark value requires a Tier One response for that outfall (see Section E-6 of General Permit). Two benchmark value exceedances in a row requires a Tier Two response for that outfall (see Section E-7 of General Permit). Four benchmark exceedances for a parameter within the five (5)year permit cycle requires a Tier Three response for that outfall (see Section E-8 of General Permit). For purposes of benchmark comparison and Tiered response actions, the permittee must use the analytical results from the first sample with valid results. 6.2 Qualitative Monitoring Qualitative monitoring is used to evaluate the effectiveness of the SWPPP and assess new sources of stormwater pollution. Qualitative monitoring of stormwater outfalls must be performed during a measurable storm event (i.e., an event that results in an actual discharge from the permitted outfall). Qualitative monitoring requires a visual inspection of each stormwater outfall associated with industrial activity, unless representative outfall status has been approved in writing by DEMLR. Visual inspections must be performed concurrent with required analytical monitoring (quarterly). Visual inspections are not required to be performed outside of the facility's normal operating hours. Visual inspections must include observations of the following characteristics: • Color • Odor • Clarity • Floating solids • Suspended Solids • Foam • Oil Sheen • Deposition at or immediately below the outfall • Erosion at or immediately below the outfall, and • Other obvious indicators of stormwater pollution. The NCDEQ Stormwater Discharge Outfall (SDO) Qualitative Monitoring Report form provided in Appendix G is used to complete this monitoring. A SDO Guidance document is also included in this appendix. www.arcadis.com GB Mount Holly NG SWPPP_Final_Jun 2024 18 Stormwater Pollution Prevention Plan Inability to sample because of adverse weather conditions must be documented in the SWPPP and recorded on the Qualitative Monitoring Report. In the event an atypical condition is noted at a stormwater discharge outfall, the permittee must document the suspected cause of the condition and any actions taken in response to the discovery. If qualitative monitoring indicates that existing stormwater BMPs are ineffective, or that significant stormwater contamination is present, the facility must investigate potential causes, evaluate the feasibility of corrective actions, and implement those corrective actions within 60 days. A written record of the facility's investigation, evaluation, and response actions must be kept in the SWPPP. 6.2.1 Monitoring Reporting Requirements The monitoring year is from January 1 to December 31 of each calendar year. Table 6-2 below outlines permit reporting requirements. Table 6-2 Facility Monitoring Summary 6.Monitoring type &.. Ad requency�[ubmissions Facility Inspections Quarterly (required) Maintain on file (Conducted monthly) Stormwater Analytical Monitoring Quarterly Submit to DEMLR within 30 days of receiving all sampling results Stormwater Qualitative Visual Quarterly Maintain on file Monitoring Non-Stormwater Discharge Annually Maintain on file Certification Training Annually Maintain on file SWPPP Review Annually Maintain on file Other Occurrences that Shall Be Reported: Occurrence Reporting Timeframes (After Discovery) and Other ft Requirements Visible sediment deposition in a stream or wetland Within 24 hours, an oral or electronic notification. Within 7 calendar days, a report that contains a description of the sediment and actions taken to address the cause of the deposition. Division staff may waive the requirement for a written report on a case-by-case basis. If the stream is listed as impaired on the DWR Integrated Report for sediment-related causes, the permittee may be required to perform additional monitoring, inspections or apply more stringent practices if staff determine that additional www.arcadis.com GB Mount Holly NG SWPPP_Final_Jun 2024 19 Stormwater Pollution Prevention Plan requirements are needed to assure compliance with the federal or state impaired-waters conditions. Oil spills if they are: Within 24 hours, an oral or electronic notification. • 25 gallons or more, The notification shall include information about the date, time, nature, volume and location of the spill or • less than 25 gallons but cannot be cleaned up within release. 24 hours, • cause sheen on surface waters (regardless of volume), or • are within 100 feet of surface waters (regardless of volume). Releases of hazardous substances in excess of Within 24 hours, an oral or electronic notification. reportable quantities under Section 311 of the Clean The notification shall include information about the Water Act date, time, nature, volume and location of the spill or release. 6.3 Retention of Records Monitoring records, reports required by the General Permit, and data used to complete the NOI must be maintained at the facility or be available electronically to DEMLR upon request, and retained for at least 5 years. www.arcadis.com GB Mount Holly NG SWPPP_Final_Jun 2024 20 Tables www.arcadis.com GB Mount Holly NC SWPPP_Final_Jun 2024 Table 1 Potential Pollutant Source Areas New NGC,Inc-Mount Holly Plant Mount Holly NC Potential Pollutant Source/Area Quantity Method of Storage/Containment/Disposal Actions to Eliminate or Reduce Exposure Spills/Leaks Potential pollutants BMPs Gypsum storage pile area Varies Outside storage pile with riprap ditch that Manage pile area to maintain within ditch None TSS Good housekeeping drains to basin area. No toxic materials stored Preventive Maintenance Program Maintain ditch integrity as needed Visual inspections Loading/unloading procedures Spill prevention/response Annual training Waste wallboard storage/staging Varies Under roof,north end of building Both areas are under roof None TSS,debris Good housekeeping area,storage dome Preventive Maintenance Program Storage dome(covered) Periodically sweep any tracked material and Visual inspections return to covered areas Loading/unloading procedures Annual training Move any excess material near North end of building to dome or reclaim bunker Truck wash area(near dome) Varies Self-contained wash area,no discharge,wash Self-contained system None TSS Good housekeeping water reused Preventive Maintenance Program Periodically clean area to prevent tracking Visual inspections Loading/unloading procedures Annual training Diesel fuel ASTs Capacities vary All ASTs are constructed of steel and have Personnel present during tank loading None Oil&Grease Good housekeeping from 60-1,000 secondary containment Spill kits present Preventive Maintenance Program Used oil AST gallons Visual inspections 50,000-gal ASTs-empty,not in service Loading/unloading procedures Spill prevention/response Annual training Loading docks(various raw materials, Varies Containers,boxes,bags Transfer from truck occurs within the building None Varies Good housekeeping chemicals,oils) walls Preventive Maintenance Program Personnel present during transfers Visual inspections Loading/unloading procedures Spill prevention/response Annual training Bulk chemicals loading area(for Varies Covered collection tote under fill port piping Loading/unloading procedures None Soap,wax,dispersant Good housekeeping indoor bulk chemical tanks) Personnel present during transfers Preventive Maintenance Program Visual inspections Loading/unloading procedures Spill prevention/response Annual training Equipment Storage(equipment, Varies Temporary storage outside Equipment drained and cleaned of residues None No chemicals stored in area Good housekeeping pallets) prior to temporary storage outside Preventive Maintenance Program Visual inspections Annual training Truck Trailer Storage Varies Stored empty on paved area outside No remedial actions. None No chemicals stored in area Good housekeeping (20-50 trailers) Trailers closed,no materials stored. Preventive Maintenance Program Visual inspections Annual training Page 1 of 2 Table 1 Potential Pollutant Source Areas New NGC,Inc-Mount Holly Plant Mount Holly NC Potential Pollutant Source/Area Quantity Method of Storage/Containment/Disposal Actions to Eliminate or Reduce Exposure Spills/Leaks Potential pollutants BMPs Transformers Varies Set on concrete pads Enclosed unit None Transformer oil Good housekeeping Maintanance,as needed Preventive Maintenance Program Visual inspections Utility Substation Loading/unloading procedures Spill prevention/response Annual training Chillers Varies Equipment within concrete bermed area Maintenance,as needed None Glycol Good housekeeping Bermed area with visual inspection of Preventive Maintenance Program rainwater Visual inspections Loading/unloading procedures Spill prevention/response Annual training Storage silos 14,000 cu ft each Enclosed steel silo Regular sweeping of area as needed None Potash,starch Good housekeeping Preventive Maintenance Program Visual inspections Loading/unloading procedures Annual training Waste/Trash containers and Varies Steel rolloff containers Cover containers,if feasible None Trash,debris Good housekeeping Compactor Preventive Maintenance Program Fully enclosed compactor unit Relocate compactor hydraulic unit(situated Visual inspections over trench drain)to inside building Loading/unloading procedures Annual training Reclaim Bunker Varies Concrete bermed area on three sides Maintain reclaimed material inside bermed None Reclaimed wallboard/debris,TSS Good housekeeping area. Preventive Maintenance Program Reduce material tracking in/out of bunker. Visual inspections Periodically sweep any tracked material and Loading/unloading procedures return to covered areas. Annual training Baghouses(Mill Building) 11 baghouses Baghouses located inside mill building Inspect in accordance with air permit None TSS Good housekeeping Clean up/remove potential residue material Preventive Maintenance Program Visual inspections Loading/unloading procedures Spill prevention/response Annual training Page 2 of 2 Figures www.arcadis.com GB Mount Holly NC SWPPP_Final_Jun 2024 700 6 Q CDR o a OUNT 273 sso M /SjF Sv a W DR `� -650� pro a DU7CHMAM$MEA DO \ F � O Mountain Y�= Island p N N - - - — � N Morningside oo \ \ Q '�— c m \ AUGu Mountaindslan'd' 65 d (L ST O } O V o a DR � a ly00 O P� � o ss 22 - o o S/DEDR Harty �? qo�F I I ♦ / I o goo ( oo Lak ❑ q�iF946 _ / 0� C`OLF 6� wl O z y R MOUNT HOLLY O OO q . pKWy FlgtiT9y9 273 �StONE RSVER fir.. v£Wf0U A� McGe CerT Nam' 0 d y NANTZ ST NOTES: vm DOGWOOD DR / 1. CATAWBA RIVER LISTED AS IMPAIRED FOR PCB FISH a WALNUTAVE TISSUE ADVISORY.SOURCE 2022 FINAL 303(d)LIST. �4F,c 2. LAKE WYLIE TMDL FOR NUTRIENTS SUCH AS TOTAL a PHOSPHORUS AND TOTAL NITROGEN,AND FOR FECAL 12 COLIFORM. D itchni-ws-Creek z REFERENCE: BASE MAP USGS 7.5.MIN.TOPO.QUAD., MOUNT HOLLY 2022,MOUNTAIN ISLAND LAKE 2023,NC. I N GLOD BOND BUILDING PRODUCTS, LLC a w�I� 1725 DRYWALL DRIVE N a°°I MOUNT HOLLY, NORTH CAROLINA Y z N Q JI SPPP �z wo a r-1°m ° MOUNT HOLLY ° om SITE LOCATION MAP COw7�l�l 1a �zz< M w 2000' 4D00' FIGURE w w ARCAD I S X o Approximate Scale: 1 in.=2000 ft. NORTH CAROLINA m i — 0 0 ", RI RIP-RAP EXTENDED WETLANDS DITCH AP \ �- ---CAL— rn / DITCH SPILLWAY DETENTION BASIN 2 — \ DITCH �`= — aacv -TWO 50,000-GALLON, y / `"DOUBLE-WALLED NO. 2 / FUEL OIL ASTs OUTFALL#2 (EMPTY, NOT IN SERVICE) _ 5 GALLON AND \ � _ 1,000 GALLON o "\/ 525-GALLON _ .. -- - _- DOUBLE WALLED a �� - DIESEL ASTs s RE +-- " - 3 CLAIM BUNKER J_ \ \ v DIESEL ASS # srr - FGD DOME (RECLAIMED WALLBOARD) fSU T RA �S DITCH \ \ WASH AREA T IN SERVICE)� A (CONTA NED)(NO \v..\ UCK E CE n - ✓ �� � - � ,,, _ r OUTFACE#1B o - 1 OFF-SPEC _ A , ° IT SCRAP METAL DUMPSTER WALLBOARD STORAGE EXTENDED WETLANDS \V \ \ a \ - w { 1 _ ���� � � �� � � i � > / • \ \\ \ w A L � � /// A+- I � S� DETENTION BASIN 1 V � • a TRUCK/TRAILER � _ � � � � BAGHOUSES (INSIDE BUILDING) ; T \�.' _ • STORAGE RA�t loyouvc A� OUTFALL#1A � ��� �� _� �� • ACTOR � _ TEMPORARY SOONGALLON \ \ g COMPACTOR AND 20O GALLON DIESEL \ \ ASTs (CONTRACTOR) a // � .�� � W MANUFACTURING zz :�, A A, ALCBOAR BUILDING / \ w / %TRUCK LOADING DOC 60-GALLON DOUBLE �\ DRY STORAGE SILOS-STARCH V A WALLED DIESEL �� - = --AND POTASH ° i A z GENERATOR AST �� ° S S S t / RASH CONTAI \ \ \ , c� w d _ i / T NERS �� \ ��y \ ITCH SUBSTATION TRAN SFORMER i (UTILITY-OWNED) A A Q \ \ EQUIPMENT STORAGE J 300 GALLON DOUBLE WALLED U O J.� _L i 9 ,n` USED OIL AST al O 509 GALLON DIESEL S ✓ / \ l / OFFICE /� � EXTERNAL OFF-LOADING / \ FIRE PUMP AST - /iAREA FOR BULK CHEMICALS w a_ \ �qlw� \ ox. ase,ro. Am CHILLERS AREA� / / \ 172-GALLON DOUBLE""/ O ii \1 tu�ix0�, �y i WALLED DIESEL \ m,tcra �)� GENERATOR AST xtx.Islwo ors.xa nes 3 600,000- GALLON 2 ^6 AA\ i WATER TANK � \ ' z LATITUDE LONGITUDE I LEGEND: \I\\I\ ' // �\� \/\ / \ \�/ STOUTFALLER \\ ~O ---- PROPERTY BOUNDARY \Ili /j�l / / 1A 35.321585 -80.99647 'z �� STORMWATER FLOW DIRECTION / �/ / \ /J 18 35.322064 -80.995264 ail • STORM DRAIN MAIN 11`: �� /// / 2 35.327158 -80.994736 / ^� SD SPILL RESPONSE EQUIPMENT ENTRANCE z ■ TRANSFORMER zso' 500' a OUTFALL 1 DRAINAGE ` // / / ` �// t� # `�� / !� I GRAPHIC SCALE d rn w OUTFALL#2 DRAINAGE n=1 TRANSFORMER OIL STORAGE LOCATION N a \ \ \ / \ 1 / NO. CAPACITY (GAL.) m�z I \ GOLD BOND BUILDING PRODUCTS, LLC a NOTES: \� \ > \ / / 1 358 MILL 1725 DRYWALL DRIVE z»x z 1. OUTFALL #1 DRAINAGE AREA - %IMPERVIOUS APPROXIMATELY 20% 2 358 MILL AUX MOUNT HOLLY, NORTH CAROLINA a 2. OUTFALL #2 DRAINAGE AREA - %IMPERVIOUS APPROXIMATELY 20% Y \\ -� �\ / / 3 358 BOARD LINE SPPP o ` 3. ALL STORM DRAINS, DITCHES AND ROOF DRAINS THAT CONTAIN 3m WATER EXPOSED TO INDUSTRIAL ACTIVITY DISCHARGE TO ONE OF 4 358 WET TRANSFER c THE EXISTING KNOWN OUTFALLS n 5 418 WET END � /o � / \ 6 277 RECLAIM SITE PLAN 0. 0 04 / 3> SOURCE: \ \ // / 7 166 OFFICE '663 09 \ a 1. BASEMAP FROM ELECTRONIC FILES PROVIDED BY PBS&J, INC. .2�2 n a 2. CHARLOTTE, NORTH CAROLINA. 3. FILENAME: C200-GRADING-STANDARD.ZIP, DATED: 8/24/07. 3 y \\\✓ / OIL TYPE FOR EACH TRANSFORMER IS SILICONE OIL. FIGURE ow Ni Pt ARCADIS I w \� \ UTILITY-OWNED TRANSFORMER LOCATED IN SUBSTATION 0 L)a X� //� '� _ �� AT SOUTH END OF FACILITY. Appendix A General Permit Certificate of Coverage www.arcadis.com GB Mount Holly NC SWPPP_Final_Jun 2024 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY DIVISION OF ENERGY, MINERAL,AND LAND RESOURCES GENERAL PERMIT NO. NCG070000 CERTIFICATE OF COVERAGE No. NCG070175 STORMWATER DISCHARGES NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM In compliance with the provision of North Carolina General Statute 143-215.1, other lawful standards and regulations promulgated and adopted by the North Carolina Environmental Management Commission, and the Federal Water Pollution Control Act, as amended, Gold Bond Building Products LLC is hereby authorized to discharge stormwater from a facility located at: Gold Bond Buildng Products - Mount Holly Plant 1725 Drywall Dr Mount Holly Gaston County to receiving waters designated as CATAWBA RIVER (Lake Wylie below elevation 570), class WS-IV;CA waters in the Catawba River Basin(s), in accordance with the effluent limitations, monitoring requirements, and other conditions set forth in General Permit No. NCG070000 which can be downloaded by entering"deq.nc.gov/SW-industrial" in the browser window and navigating to the "NPDES Stormwater General Permits" web page. This certificate of coverage shall become effective June 1, 2023. This Certificate of Coverage shall remain in effect for the duration of the General Permit or until rescinded. Michael Lawyer, Stormwater Program Supervisor Division of Energy, Mineral and Land Resources By the Authority of the Environmental Management Commission Appendix B Significant Spills or Leaks Form www.arcadis.com GB Mount Holly NC SWPPP_Final_Jun 2024 Appendix B Significant Spills or Leaks Gold Bond Building Products, LLC—Mount Holly Plant Mount Holly, NC Date of Material Estimated Location of Release Remediation and/or Clean-up Corrective Actions taken to Spill/Leak Spilled/Leaked Volume Measures Prevent Recurrence Spilled/Leaked Appendix C Non-Storm Water Discharge Certification www.arcadis.com GB Mount Holly NC SWPPP_Final_Jun 2024 Appendix C Annual Non-Storm Water Discharge Assessment and Certification Gold Bond Building Products,LLC—Mount Holly,NC Date of Test Non-Storm Water Method Used to Test or Describe Results from Test for the Identify Potential Name of Person Who Conducted or Evaluation Discharge Point Evaluate Discharge Presence of Non-Storm Water Significant Sources the Test or Evaluation Observed Discharge Outfall 1A Outfall 1B Outfall 2 Certification I, certify under penalty of law that this Non-Storm Water Discharge Assessment and Certification and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations. A. Name&Official Title B. Area Code and Telephone No. C. Signature D. Date Signed PAGE 1 OF 1 Appendix C Annual Non-Storm Water Discharge Assessment and Certification Gold Bond Building Products,LLC—Mount Holly,NC Date of Test Non-Storm Water Method Used to Test or Describe Results from Test for the Identify Potential Name of Person Who Conducted or Evaluation Discharge Point Evaluate Discharge Presence of Non-Storm Water Significant Sources the Test or Evaluation Observed Discharge Outfall 1A A11A Outfall 1B 0 ct a's CkA4-�9— ?Msse,� Outfall 2 Qc, c(ZS( A/A Certification 1, certify under penalty of law that this Non-Storm Water Discharge Assessment and Certification and all attachments were I prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations. A. Name&Official Title B. Area Code and Telephone No. T-ract Pex" ,, P43 M4A t 12k Az% G -7 C. Signature D. Date Signed PAGE 1 OF 1 Appendix Facility Inspection Form and Containment Drainage Log www.arcadis.com GB Mount Holly NC SWPPP_Final_Jun 2024 Facility Inspection Form New NGC, Inc. dba National Gypsum Company—Mount Holly Plant Mount Holly, NC Date: Inspector's Name: Inspection Type: Monthly or Annual Inspector's Signature: Weather Information: Location/Area of Facility BMP Inspected Problems Found Steps Taken to Correct Problem Bulk gypsum storage pile area -riprap ditch Waste wallboard staging Storage dome Reclaim bunker Truck wash Diesel fuel ASTs Used oil AST Contractor fuel ASTs Loading and unloading docks Bulk chemicals loading/ unloading area Equipment storage Truck/Trailer storage Transformers Utility substation Chillers Storage silos (starch, potash) Baghouses, Mill Bldg area Waste containers Compactor Basin#1,spillway Outfalls#1A and#1B Basin#2,spillway Outfall#2 Stormwater catch basins Drainage swales,ditches Appendix D Inspection of Accumulated Stormwater within Secondary Containment Areas SPPP Gold Bond Building Products, LLC Mount Holly, NC Inspection Date: Inspector's Name: Description of accumulated water Date and Time of Discharge Secondary Containment Area (e.g., color, foam, sheen, staining at outfall) No areas for bulk liquids storage exposed to stormwater Notes: Appendix SPRP Responsibilities www.arcadis.com GB Mount Holly NC SWPPP_Final_Jun 2024 Appendix E SPRP Personnel and Responsibilities Gold Bond Building Products, LLC Mount Holly, NC Facility Personnel Responsible for Implementing Spill Prevention and Response Procedures (SPRP) Name Title Responsibility Acknowledgement Accepting Responsibilities (sign and date Fred Perard EHS Manager Spill response, coordination, support Notification to outside contractor A enc notification, as needed Adam Lynch Plant Manager Spill coordination, support A enc notification, as needed Michael Thompson Plant Engineer Spill coordination, support Appendix E SPRP Personnel and Responsibilities Gold Bond Building Products, ITC Mount Holly, NC Facility Personnel Responsible for Implementing Spill Prevention and Response Procedures(SPRP) Name Title Responsibility Acknowledgement Accepting Responsibilities (sign and date) Fred Perard EHS Manager Spill response, coordination, support Notification to outside contractor A enc notification, as needed Adam Lynch Plant Manager Spill coordination, support Agency notification, as needed Michael Thompson Plant Engineer Spill coordination, support Appendix F Training Forms www.arcadis.com GB Mount Holly NC SWPPP_Final_Jun 2024 Training Outline Following is an outline of the training topics to be covered in awareness and competency training for all staff involved in loading, unloading, and transfer or management of significant materials. This training will be given to new employees working with oil and as an annual refresher. ■ Objective of the SWPPP/SPCC ■ Review of the SWPPP/SPCC ■ Oil and chemical loading, unloading, and transfer procedures ■ Oil and chemical storage procedures ■ Routine inspections ■ Spill prevention ■ Emergency contacts ■ Spill response ■ Removing water from secondary containment ■ Potential spill areas and drainage routes ■ Storm drain locations and use ■ Locations of spill clean-up equipment and the persons responsible for response Following is an outline of additional training topics to be covered for each member of the pollution prevention team. This may be presented as part of the annual employee training or it may be covered during pollution prevention team meetings. ■ Annual site compliance evaluations ■ Employee training ■ Emergency assistance response procedures ■ Drill spill response procedures for spills at loading areas ■ Notifications ■ Plan amendment ■ Record keeping ■ Used oil management ■ Spent solvent management ■ Process water vs stormwater 0 Use battery management Employee Training Record Instructions: ■ Complete this form for each training session. ■ Have each attendee sign the form. ■ Maintain the completed form in the SPCC Plan and SWPPP for at least 3 years. Facility: Date: Type of Training: Topics Covered: Attendees: (Printed name and signature) Questions and Issues: Recommendations and Suggestions: Facilitator: Employee Training Record Instructions: * Complete this form for each training session. * Have each attendee sign the form. 11 Maintain the completed form in ihuSPCC Run and SVVPPP for at least 3years. Facility: Date: Type of Training: Topics Covered: \ Attendees: (Printed name and signature) Questions and Issues: Recommendations and Suggestions: �� Training Outline Following is an outline of the training topics to be covered in awareness and competency training for all staff involved in loading, unloading, and transfer or management of significant materials. This training will be given 0o new employees working with oil and aoun annual refresher. • Objective of the SVVPPFYSPCC • Review of the GVVPPP/SPCC • Oil and chemical loading, unloading, and transfer procedures • Oil and chemical storage procedures • Routine inspections • Spill prevention In Emergency contacts • Spill response • Removing water from secondary containment • Potential spill areas and drainage routes • Storm drain locations and use • Locations of spill clean-up equipment and the persons responsible for response Following is an outline of additional training topics to be covered for each member of the pollution prevention team. This may be presented as part of the annual employee training or it may be covered during pollution prevention team meetings. * Annual site compliance evaluations * Employee training * Emergency assistance response procedures * Drill spill response procedures for spills mt loading areas * Notifications * Plan amendment * Record keeping * Used oil management * Spent solvent management * Process water vnetormwohor * Use battery management STORMWATER POLLUTION PREVENTION PLAN TRAINING Gold Bond Building Products— Date: JUTE 26TH, 2024 MT. Ho y, HC Plant TOPICS COVERED: Employee Erpployee 8[gnaturef-, 1. Facility Information 1. Adam Lynch 2. Pollution Prevention Team 3. Potential Pollutant Sources 2. Perard, Fred 4. Stormwater Management Strategy 5. Monitoring 3. Thompson, Michael Overview, Training was conducted to review the newly updated SWPPP with the team. Team included the Plant Manager/Team Leader, the Record keeper/Employee Trainer, and the Plant Engineer/Site Inspector. Course Title Last Name First Name Due Date Status Stormwater Pollution Prevention:A Drop in the Bucket Adams Jerome 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Adams Bryan 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Adams Patrick N 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Anderson Kendall 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Aymar Joseph C 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Barlow Timothy R 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Barrett Mike 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Bates Fred 7/31/2024 Not started Stormwater Pollution Prevention:A Drop in the Bucket Becker Kodi 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Black Tyler 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Blanton Frank 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Bone Andy 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Bowen Dwight 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Boyles Alex 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Brown Travis 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Carter Kevin 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Cauthen Timothy S 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Ceol Lynn 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Cipriano Angie 7/31/2024 Not started Stormwater Pollution Prevention:A Drop in the Bucket Conner Carmelita 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Connor Brian 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Cox Geoffrey 7/31/20241 Completed Stormwater Pollution Prevention:A Drop in the Bucket Craig Lee 7/31/20241 Not started Stormwater Pollution Prevention:A Drop in the Bucket Cunningham Michael 7/31/2024 Not started Stormwater Pollution Prevention:A Drop in the Bucket Cunningham Rickey 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Curtis Melody 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Davis Joshua 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Davis Tyler 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Dixon Spencer 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Dwyer Michael 7/31/20241 Not started Stormwater Pollution Prevention:A Drop in the Bucket Ervin Jason 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Essary Margaret 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Evans Joseph L 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Figueroa Will 7/31/2024 Not started Stormwater Pollution Prevention:A Drop in the Bucket Fine Brandon 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Fockler Mekiah 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Foster Marcus 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Frucella Jennifer 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Garcia Carlos 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Garvin Greg 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Glenn Charles 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Gomez Christopher 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Goodman Darnell 7/31/20241 Completed Stormwater Pollution Prevention:A Drop in the Bucket Guinn Timothy 7/31/20241 Completed Stormwater Pollution Prevention:A Drop in the Bucket Guy Emanuel 7/31/20241 Completed Stormwater Pollution Prevention:A Drop in the Bucket Hege Sam 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Hudspeth Johnny R 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket James Robert 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Jauncey Micha 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Jenkins Lauren 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Johnson Blayne 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Johnson Ted 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Jones Jerri 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Jones Levelle 7/31/2024 Not started Stormwater Pollution Prevention:A Drop in the Bucket Jordan Derik M 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Justice Caleb 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Keaton Caleb 7/31/2024 Not started Stormwater Pollution Prevention:A Drop in the Bucket Kinnamon(Smith) Susan 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Kitchen John 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Leathco Christina 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Leveque Anthony 7/31/2024 Not started Stormwater Pollution Prevention:A Drop in the Bucket Lineberger Jimmy 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Littlejohn Arthur 7/31/20241 Completed Stormwater Pollution Prevention:A Drop in the Bucket Lopez Karla Pitalua 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Lynch Adam 7/31/20241 Completed Stormwater Pollution Prevention:A Drop in the Bucket Martinez Irait 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Martinez Justin 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Marvin Jr Paul 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket McBee Matt 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket McCleary Devin 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket McElveen Willie L 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket McKinzie Rickey 7/31/2024 Not started Stormwater Pollution Prevention:A Drop in the Bucket Miller Franchesca 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Mungro Ken 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Myers James 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Naylor Jason 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Newton Daryl K 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Orr Johnny 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Paysour Kenny 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Perard Fred 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Powell MichaelJ 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Pressley MichaelA 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Reyes Alfonso 7/31/2024 Not started Stormwater Pollution Prevention:A Drop in the Bucket Rice Chaz 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Richardson Mckinley 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Roach Jeff 7/31/2024 Not started Stormwater Pollution Prevention:A Drop in the Bucket Salazar Houston 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Sattler Mike 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Sattler Mike 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Schwartz Erich 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Scott Matthew 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Settlemyre Russell 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Smith Travis 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Tebo Daniel 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Thammalangsy Eun Ju 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Thompson Anthony R 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Thompson Michael 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Thompson Anthony R 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Toney April 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Turner Anthony 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Varela Leslie 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Varela Luis 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Vazquez Mark 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Watkins Joey W 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Weathers Ronald D 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Weber John P 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Williams Mack 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Williams Terry D 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Williams Monteir 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Wills Jr. Tony 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Wilson Joseph L 7/31/2024 Completed Stormwater Pollution Prevention:A Drop in the Bucket Woodard William R 7/31/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Adams Jerome 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Adams Bryan 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Adams Patrick N 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Anderson Kendall 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Aymar Joseph C 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Barlow Timothy R 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Barrett Mike 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Bates Fred 11/30/2024 Not started Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Becker Kodi 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Black Tyler 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Blanton Frank 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Bone Andy 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Bowen Dwight 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Boyles Alex 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Brown Travis 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Carter Kevin 11/30/20241 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Cauthen Timothy S 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Ceol Lynn 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Cipriano Angie 11/30/2024 Not started Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Conner Carmelita 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Connor Brian 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Cox Geoffrey 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Craig Lee 11/30/2024 Not started Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Cunningham Michael 11/30/2024 Not started Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Cunningham Rickey 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Curtis Melody 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Davis Joshua 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Davis Tyler 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Dixon Spencer 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Dwyer Michael 11/30/2024 Not started Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Ervin Jason 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Essary Margaret 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Evans Joseph L 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Figueroa Will 11/30/2024 Not started Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Fine Brandon 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Fockler Mekiah 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Foster Marcus 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Frucella Jennifer 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Garcia Carlos 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Garvin Greg 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Glenn Charles 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Gomez Christopher 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Goodman Darnell 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Guinn Timothy 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Guy Emanuel 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Hege Sam 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Hudspeth Johnny R 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix James Robert 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Jauncey Micha 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Jenkins Lauren 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Johnson Blayne 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Johnson Ted 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Jones Jerri 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Jones Levelle 11/30/2024 Not started Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Jordan Derik M 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Justice Caleb 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Keaton Caleb 11/30/2024 Not started Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Kinnamon(Smith) Susan 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Kitchen John 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Leathco Christina 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Leveque Anthony 11/30/2024 Not started Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Lineberger Jimmy 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Littlejohn Arthur 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Lopez Karla Pitalua 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Lynch Adam 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Martinez trait 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Martinez Justin 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Marvin Jr Paul 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix McBee Matt 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix McCleary Devin 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix McElveen Willie L 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix McKinzie Rickey 11/30/2024 Not started Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Miller Franchesca 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Mungro Ken 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Myers James 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Naylor Jason 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Newton Daryl K 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Orr Johnny 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Paysour Kenny 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Perard Fred 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Powell MichaelJ 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Pressley MichaelA 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Reyes Alfonso 11/30/2024 Not started Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Rice Chaz 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Richardson MckinLey 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Roach Jeff 11/30/2024 Not started Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Salazar Houston 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Sattler Mike 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Sattler Mike 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Schwartz Erich 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Scott Matthew 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Settlemyre Russell 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Smith Travis 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Tebo Daniel 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Thammalangsy Eun Ju 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Thompson Anthony R 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Thompson Michael 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Thompson Anthony R 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Toney April 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Turner Anthony 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Varela Leslie 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Varela Luis 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Vazquez Mark 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Watkins Joey W 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Weathers Ronald D 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Weber John P 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Williams Mack 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Williams Terry D 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Williams Monteir 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Wills Jr. Tony 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix Wilson Joseph L 11/30/2024 Completed Spill Prevention,Control and Countermeasure(SPCC):Oil and Water Do Not Mix lWoodard lWitliam R 1 11/30/20241 Completed Appendix G Stormwater Monitoring Forms www.arcadis.com GB Mount Holly NC SWPPP_Final_Jun 2024 STORMWATER DISCHARGE OUTFALL (SDO) ANNUAL SUMMARY DATA MONITORING REPORT (DMR) / SPPP Annual Update DATA REVIEW FORM Calendar Year Individual NPDES Permit No. NCS❑❑❑❑❑❑ or Certificate of Coverage (COC) No. NCG❑❑❑❑❑❑ This monitoring report summary of the calendar year should be kept on file on-site with the facility SPPP. Facility Name: County: Phone Number: ( ) Total no. of SDOs monitored Outfall No. Is this outfall currently in Tier 2 (monitored monthly)? Yes ❑ No ❑ Was this outfall ever in Tier 2 (monitored monthly) during the past year? Yes ❑ No ❑ If this outfall was in Tier 2 last year, why was monthly monitoring discontinued? Enough consecutive samples below benchmarks to decrease frequency ❑ Received approval from DWQ to reduce monitoring frequency ❑ Other ❑ Was this SDO monitored because of vehicle maintenance activities? Yes ❑ No ❑ Parameter, (units) Total Rainfall, inches Benchmark N/A Date Sample Collected, mm/dd/yy SWU-264 - Generic Annual DMR Last revised 610112018 Additional Outfall Attachment Outfall No. Is this outfall currently in Tier 2 (monitored monthly)? Yes ❑ No ❑ Was this outfall ever in Tier 2 (monitored monthly) during the past year? Yes ❑ No ❑ If this outfall was in Tier 2 last year, why was monthly monitoring discontinued? Enough consecutive samples below benchmarks to decrease frequency ❑ Received approval from DWQ to reduce monitoring frequency ❑ Other ❑ Was this SDO monitored because of vehicle maintenance activities? Yes ❑ No ❑ Parameter, (units) Total Rainfall, inches Benchmark N/A Date Sample Collected, mm/dd/yy SWU-264 - Generic Annual DMR Last revised 610112018 I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations." Signature Date For questions, contact your local Regional Office: DEMLR Regional Office Contact Information: Whin ro ala r , le F F an ille �f WiVil ngton ASHEVILLE REGIONAL OFFICE FAYETTEVILLE REGIONAL OFFICE MOORESVILLE REGIONAL OFFICE 2090 US Highway 70 225 Green Street 610 East Center Avenue/Suite 301 Swannanoa,NC 28778 Systel Building Suite 714 Mooresville,NC 28115 (828) 296-4500 Fayetteville,NC 28301-5043 (704) 663-1699 (910) 433-3300 RALEIGH REGIONAL OFFICE WASHINGTON REGIONAL OFFICE WILMINGTON REGIONAL OFFICE 3800 Barrett Drive 943 Washington Square Mall 127 Cardinal Drive Extension Raleigh,NC 27609 Washington,NC 27889 Wilmington,NC 28405-2845 (919) 791-4200 (252) 946-6481 (910) 796-7215 WINSTON-SALEM REGIONAL OFFICE CENTRAL OFFICE 450 Hanes Mill Rd, Suite 300 1617 Mail Service Center Winston-Salem,NC 27105 Raleigh,NC 27699-1617 (336) 776-9800 (919) 807-6300 SWU-264 - Generic Annual DMR Last revised 610112018 Environmental Quality Stormwater Discharge Outfall (SDO) Qualitative Monitoring Report For guidance on filling out this form,please visit https:Hdeq.nc.gov/about/divisions/energy-mineral-land-resources/ npdes-stormwater-gps Permit No.: N/C/ / / / / / / / or Certificate of Coverage No.: N/C/G/ Facility Name: County: Phone No. Inspector: Date of Inspection: Time of Inspection: Total Event Precipitation(inches): All permits require qualitative monitoring to be performed during a"measurable storm event." A"measurable storm event" is a storm event that results in an actual discharge from the permitted site outfall. The previous measurable storm event must have been at least 72 hours prior. The 72-hour storm interval does not apply if the permittee is able to document that a shorter interval is representative for local storm events during the sampling period,and the permittee obtains approval from the local DEMLR Regional Office. By this signature,I certify that this report is accurate and complete to the best of my knowledge: (Signature of Permittee or Designee) 1. Outfall Description: Outfall No. Structure(pipe, ditch, etc.): Receiving Stream: Describe the industrial activities that occur within the outfall drainage area: Page 1 of 2 SWU-242,Last modified 06/01/2018 2. Color: Describe the color of the discharge using basic colors(red,brown,blue, etc.)and tint (light,medium, dark)as descriptors: 3. Odor: Describe any distinct odors that the discharge may have(i.e., smells strongly of oil,weak chlorine odor, etc.): 4. Clarity: Choose the number which best describes the clarity of the discharge, where 1 is clear and 5 is very cloudy: 1 2 3 4 5 5. Floating Solids: Choose the number which best describes the amount of floating solids in the stormwater discharge,where 1 is no solids and 5 is the surface covered with floating solids: 1 2 3 4 5 6. Suspended Solids: Choose the number which best describes the amount of suspended solids in the stormwater discharge,where 1 is no solids and 5 is extremely muddy: 1 2 3 4 5 7. Is there any foam in the stormwater discharge? O Yes O No. 8. Is there an oil sheen in the stormwater discharge? OYes O No. 9. Is there evidence of erosion or deposition at the outfall? O Yes O No. 10. Other Obvious Indicators of Stormwater Pollution: List and describe Note: Low clarity,high solids, and/or the presence of foam,oil sheen,or erosion/deposition may be indicative of pollutant exposure. These conditions warrant further investigation. Page 2 of 2 SWU-242,Last modified 06/01/2018 Stormwater Discharge Outfall (SDO) Qualitative Monitoring Report Supplement SWU-242A: Guidance for Rating Stormwater Discharge This supplement is intended only as a guide for rating visually observed parameters on a scale of 1-5. The inspector should use best professional judgment when characterizing the quality of stormwater discharge. Also, the pictures included here do not necessarily show stormwater discharges but serve to illustrate the characteristics described. Clarity (1 is clear, and 5 is very opaque or cloudy) �. tom. i l 1 3 5 Floating Solids (1 is no solids, and 5 is the surface covered with floating solids or significant trash/debris) I� 1 3 5 Page 1 of 10 SWU-242A-061808 Suspended Solids (1 is no solids, and 5 is extremely muddy or clouded with other particles) Vy V 1 3 5 Tannic Water Water naturally high in tannins in the eastern part of North Carolina may still have low amounts of suspended solids and high clarity but not appear"clear"because of coloration. The examples below will help rate discharges that must be observed in tannic waters. Clear tannic water may look like tea or coffee,but waters that look more "milky" or like "chocolate milk"have less clarity and higher suspended solids. Suspended Solids/Clarity in waterbodies naturally high in tannins OW a 1 / 1 3 / 3 5 / 5 Page 2 of 10 SV,U-242A-061808 Example 1 4 t 'W 1. Outfall Description: Example 1 of 4 Outfall No. 001 Structure(pipe, ditch, etc.) Pipe Receiving Stream: Describe the industrial activities that occur within the outfall drainage area: 2. Color: Describe the color of the discharge using basic colors (red,brown,blue, etc.) and tint (light, medium, dark) as descriptors: light brown 3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil, weak chlorine odor,etc.): none 4. Clarity: Choose the number which best describes the clarity of the discharge,where 1 is clear and 5 is very cloudy: 1 2 3 4 5 5. Floating Solids: Choose the number which best describes the amount of floating solids in the stormwater discharge, where 1 is no solids and 5 is the surface covered with floating solids: 1 2 3 O 5 6. Suspended Solids: Choose the number which best describes the amount of suspended solids in the stormwater discharge,where 1 is no solids and 5 is extremely muddy: 1 2 O 4 5 Page 3 of 10 SV,U-242A-061808 Example 1 of 4,cont. Possibly small amount of 7. Is there any foam in the stormwater discharge? Yes No foam near pipe outlet. 8. Is there an oil sheen in the stormwater discharge? Yes No 9. Is there evidence of erosion or deposition at the outfall? Yes No Deposition of sand to the right of pipe outlet. 10. Other Obvious Indicators of Stormwater Pollution: List and describe N/A Page 4 of 10 SWU-242A-061808 Example 2 _ ` ` 1. Outfall Description: Example 2 of 4 Outfall No. 001 Structure(pipe, ditch, etc.) Ditch Receiving Stream: Describe the industrial activities that occur within the outfall drainage area: 2. Color: Describe the color of the discharge using basic colors (red,brown,blue, etc.) and tint (light, medium, dark) as descriptors: medium gray-green 3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil, weak chlorine odor, etc.): none 4. Clarity: Choose the number which best describes the clarity of the discharge,where 1 is clear and 5 is very cloudy: 1 2 3 4 5 Note in lower right corner of picture,leaf shadow is visible on the bottom of outlet. Clarity decreases beyond outlet. 5. Floating Solids: Choose the number which best describes the amount of floating solids in the stormwater discharge, where 1 is no solids and 5 is the surface covered with floating solids: 1 O 3 4 5 Floating solids observed here are mostly tree debris that fell in after discharge. 6. Suspended Solids: Choose the number which best describes the amount of suspended solids in the stormwater discharge,where 1 is no solids and 5 is extremely muddy: Solids have settled out near outfall and are 1 O 3 4 5 more"dissolved"out in the water near the top of the picture(where water appears more gray). At the outlet,there are not any swirls,clouds,or suspended particles. Page 5 of 10 SV,U-242A-061808 Example 2 of 4,cont. 7. Is there any foam in the stormwater discharge? Yes No 8. Is there an oil sheen in the stormwater discharge? Yes No 9. Is there evidence of erosion or deposition at the outfall? Yes No 10. Other Obvious Indicators of Stormwater Pollution: List and describe Some displacement of gravel and sediment observed at the outfall. Also, lots of solids that have settled. The water becomes more turbid/cloudy beyond the outfall(i.e.,clarity decreases). Evidence of excessive solids being carried into receivin water. This example illustrates how additional information in number 10. can be important to characterizing stormwater discharge impacts. Page 6 of 10 SWU-242A-061808 Example 3 1. Outfall Description: Example 3 of 4 Outfall No. 001 Structure(pipe, ditch, etc.) Pipe Receiving Stream: Describe the industrial activities that occur within the outfall drainage area: 2. Color: Describe the color of the discharge using basic colors (red,brown,blue, etc.) and tint (light, medium, dark) as descriptors: medium brown/tan 3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil, weak chlorine odor,etc.): oily smell 4. Clarity: Choose the number which best describes the clarity of the discharge,where 1 is clear and 5 is very cloudy: 1 2 3 4 5 5. Floating Solids: Choose the number which best describes the amount of floating solids in the stormwater discharge, where 1 is no solids and 5 is the surface covered with floating solids: 1 2 3 O 5 Rating based on amount of scum/oil covering surface,not tree debris. 6. Suspended Solids: Choose the number which best describes the amount of suspended solids in the stormwater discharge,where 1 is no solids and 5 is extremely muddy: 1 2 0 4 5 Page 7 of 10 SV,U-242A-061808 Example 3 of 4,cont. 7. Is there any foam in the stormwater discharge? Yes No 8. Is there an oil sheen in the stormwater discharge? Yes No 9. Is there evidence of erosion or deposition at the outfall? Yes No 10. Other Obvious Indicators of Stormwater Pollution: List and describe Oil and scummy substance floating on top. Dead duck found. Page 8 of 10 SWU-242A-061808 Example 4 fix. 3. - w 1. Outfall Description: Example 4 of 4 Outfall No. 001 Structure(pipe, ditch, etc.) Pipe Receiving Stream: Describe the industrial activities that occur within the outfall drainage area: 2. Color: Describe the color of the discharge using basic colors (red,brown,blue, etc.) and tint (light, medium, dark) as descriptors: clear 3. Odor: Describe any distinct odors that the discharge may have (i.e., smells strongly of oil, weak chlorine odor,etc.): none 4. Clarity: Choose the number which best describes the clarity of the discharge,where 1 is clear and 5 is very cloudy: 1 2 3 4 5 5. Floating Solids: Choose the number which best describes the amount of floating solids in the stormwater discharge, where 1 is no solids and 5 is the surface covered with floating solids: O 2 3 4 5 6. Suspended Solids: Choose the number which best describes the amount of suspended solids in the stormwater discharge,where 1 is no solids and 5 is extremely muddy: O 2 3 4 5 Page 9 of 10 SWU-242A-061808 Example 4 of 4,cont. 7. Is there any foam in the stormwater discharge? Yes No 8. Is there an oil sheen in the stormwater discharge? Yes No 9. Is there evidence of erosion or deposition at the outfall? Yes No 10. Other Obvious Indicators of Stormwater Pollution: List and describe N/A Page 10 of 10 SWU-242A-061808 NCDEQ Division of Energy, Mineral and Land Resources Stormwater Discharge Monitoring Report (DMR) Form for NCG070000 Stone, Clay, Glass, & Concrete Products Click here for instructions Complete,sign,scan and submit the DMR via the Stormwater NPDES Permit Data Monitoring Report(DMR) Upload form within 30 days of receiving sampling results. Mail the original,signed hard copy of the DMR to the appropriate DEMLR Regional Office. Certificate of Coverage No. NCG07 Person Collecting Samples: Facility Name: Laboratory Name: Facility County: Laboratory Cert. No.: Discharge during this period: ❑Yes ❑ No (if no,skip to signature and date) Has your facility implemented mandatory Tier response actions this sample period for any benchmark exceedances?❑Yes ❑ No If so,which Tier(I, II,or III)? A copy of this DMR has been uploaded electronically via https://edocs.deg.nc.gov/Forms/SW-DMR ❑Yes ❑ No Date Uploaded: Analytical Monitoring Requirements for Outfalls with Industrial Activities—Benchmarks in(Red) Parameter Parameter Outfall Outfall Outfall Outfall Outfall Code N/A Receiving Stream Class N/A Date Sample Collected MM/DD/YYYY 46529 24-Hour Rainfall in inches 00400 pH in standard units(6.0-9.0 FW, 6.8-8.5 SW) C0530 TSS in mg/L(100 or 50*) 00552 Non-Polar Oil&Grease in mg/L(15) NCOIL Estimated New Motor/Hydraulic Oil Usage in gal/month *Outfalls to Outstanding Resource Waters(ORW),High Quality Waters(HQW),Trout Waters(Tr)and Primary Nursery Areas(PNA) have a benchmark TSS limit of 50 mg/L.All other water classifications have a benchmark of 100 mg/L Notes(optional): "I certify by my signature below,under penalty of law,that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted.Based on my inquiry of the person or persons who manage the system,or those persons directly responsible for gathering the information,the information submitted is,to the best of my knowledge and belief,true,accurate,and complete.I am aware that there are significant penalties for submitting false information,including the possibility of fines and imprisonment for knowing violations." Signature of Permittee or Delegated Authorized Individual Date Email Address Phone Number NCDEQ Division of Energy, Mineral and Land Resources Discharge Monitoring Report (DMR) Instructions Completing the DMR Form: 1. The total precipitation shall be recorded using data from an on-site rain gauge. Unattended sites may be eligible for a waiver of the rain gauge requirement if approved in writing by the applicable DEMLR Regional Office. 2. Sampling results for each parameter shall be compared to the benchmark values for the appropriate receiving stream classification (listed in parentheses). 3. Monitoring results shall be in numerical format; below detection limit (BDL), non- detect (ND) or other non-numerical formats are not acceptable. When results are below detection limits, they must be reported in the format "<XX mg/L," where "XX" is the numerical detection limit in mg/L. Where fecal coliform results (if applicable) exceed the dilution upper limit, the result should be reported as ">XX". 4. For sampling periods with no discharge at any single outfall, the DMR report is still required to be completed and submitted. 5. If the sampled storm event coincides with a known non-stormwater discharge that is deemed permitted under 15A NCAC 02H .0106, then this shall be noted on the DMR in the notes section. 6. If any pollutant is sampled more frequently than required by the general permit and at a sampling location covered under the general permit, then per permitting requirements, those sampling results must be submitted on a DMR. Submitting the DMR Form: Do not send paper DMRs to the Central Files. 1. Complete, sign, scan and submit the DMR via the Stormwater NPDES Permit Data Monitoring Report (DMR) Upload form within 30 days of receiving sampling results. 2. Mail the original, signed hard copy of the DMR to the appropriate DEMLR Regional Office. SOLVENT MANAGEMENT PLAN CERTIFICATION Based upon my inquiry of the person or persons directly responsible for managing compliance with the permit requirement for managing solvents, I certify that to best of my knowledge and belief, no leak, spill, or dumping of concentrated solvents into the stormwater or onto areas which are exposed to rainfall or stormwater runoff has occurred since filing the last discharge monitoring report. I further certify that this facility is implementing all provisions of the Solvent Management Plan included in the Stormwater Pollution Prevention Plan. Signature Date Printed Name Arcadis U.S., Inc. 50 Millstone Road, Building 200, Suite 220 East Windsor New Jersey 08520 Phone: 609 860 0590 Fax: 609 448 0890 www.arcadis.com Arcadis. Improving quality of life. ROY COOPER Governor , ELIZABETH S.BISER Secretary { e ° WILLIAM E.TOBY VINSON,JR. NORTH CAROLINA Interim Director E1t*wunw"Quaw May 30, 2024 CERTIFIED MAIL: 7022 0410 0000 7791 5638 RETURN RECEIPT REQUESTED Gold Bond Building Products, LLC Attn: Lance Davis 838 Sunnyvale Drive Wilmington,North Carolina 28412 Subject: NOTICE OF DEFICIENCY(NOD-2024-PC-0098) NPDES Stormwater General Permit NCG070000 Gold Bond Building Products Gold Bond Building Products—Mount Holly Plant Certificate of Coverage NCG070175 Gaston County Dear Mr. Davis: On May 22, 2024, Jerry Eplin, Kathryn Peterson, and William Baummer from the Mooresville Regional Office of the Division of Energy, Mineral and Land Resources (DEMLR), conducted a site inspection for the Gold Bond Building Products — Mount Holly Plant located at 1725 Drywall Drive, Mount Holly, Gaston County, North Carolina. A copy of the Compliance Inspection Report is enclosed for your review. Michael Thompson and Adam Lynch also present during the inspection and their time and assistance is greatly appreciated. The site visit and file review revealed that the subject facility is covered by NPDES Stormwater General Permit NCG070000 under Certificate of Coverage NCG070175. Permit coverage authorizes the discharge of stormwater from the facility to receiving waters designated as the Catawba River, class WS-IV;CA waters in the Catawba River Basin. As a result of the site inspection, the following deficiencies are noted: • The Stormwater Pollution Prevention Plan (SWPPP) has not been reviewed on an annual basis. • Illicit(non-stormwater) discharge monitoring has not occurred. • Analytical monitoring has not occurred. 0 A solvent management plan has not been prepared. Other Observations The SWPPP site map does not clarify that all storm drains, ditches and roof drains that contain water exposed to industrial activity discharge to one of the existing known outfalls. North Carolina Department of Environmental Quality Division of Energy,Mineral,and Land Resources Mooresville Regional Office 610 East Center Avenue,Suite 301 Mooresville,North Carolina 281 15 704-235-2100 NOTICE OF DEFICIENCY Gold Bond Building Products, Inc. May 30, 2024 Page 2 of 2 • Housekeeping at the facility needs improvement. • The truck tire wash was not operational at the time of the inspection; thus, this Best Management Practice was not being utilized. • Please refer to the enclosed Compliance Inspection Report for additional comments and observations made during the inspection. Requested Response A written response is requested within 30 days of receiving this Notice of Deficiency. The written response must address the following items: 1. When will the truck tire wash be repaired and operational. 2. How did the deficiencies noted above occur and what actions will the facility take to assure that they do not recur. The written response must also address the following action items. Action Items 1. Immediately review and amend the facility's SWPPP as needed. Incorporate and begin annual updates, annual illicit discharge monitoring, and the analytical and qualitative monitoring and reporting schedule, and include the required Solvent Management Plan. 2. Conduct training related to the updated SWPPP. 3. Provide this office an electronic copy of the updated SWPPP and training records within 30 days of receiving this Notice of Deficiency. 4. Begin the required analytical and qualitative monitoring and reporting scheduled upon the next qualifying storm event. 5. Submit discharge monitoring reports for the analytical monitoring as per permit requirements. Thank you for your attention to this matter. This office requires that the deficiencies, as noted above and detailed in the enclosed inspection report, be properly resolved. Failure to address the deficiencies could result in the issuance of a Notice of Violation, which is subject to a civil penalty assessment of up to $25,000 per day for each violation. Should you have any questions or concerns, please contact me at(704) 235-2100. Sincerely, [Docuftned by: " WEf" Jerry ° °pain, PE Regional Engineer Land Quality Section JWE/cys Enclosure: Compliance Inspection Report c: Michael Thompson, Gold Bond Building Products, 1725 Drywall Dr., Mt. Holly, NC 28120 Adam Lynch, Gold Bond Building Products, 1725 Drywall Dr., Mt. Holly, NC 28120 Mike Lawyer, CPSWQ, Stormwater Program Supervisor—DEMLR Brad Cole,PE, Chief of Regional Operations—DEMLR DEMLR NPDES Stormwater Permit Laserfiche File t •!^ North Carolina Department of Envirottmental Quality Division of Energy.Mineral,and Land Resources ECJ9 Mooresville Regional Office 610 East Center avenue.Suite 301 Mooresville,North Carolina 28115 erM 704-235-2100 ~ " Compliance Inspection R ort Pemmit:NCGO7U175 Effective: 00x0 /23 Expiration: 0581/28 Owner: Gold Bond Building Products LLC Soc: Effective Expiration: Facility: Gold Bond BuUUngProducts Mount Holly Plan County: Gaston 1T25 Drywall Dr Region: Mooresville Mount Holly NC2812O Contact Person:Rick Smith Title: Phune:7O4-398-39O0 Directions toFacility: The site is located on Highway 27310 the east of Wester Road. System Classifications: SVVNC. PhmoryORC: Certification: Phone: Secundan/ORC(u): On-SiteRapreoentmtixe(s): Related Permits: Inspection Date: 05/22/2024 Entry Time 11:0VAM Exit Time: 01:28PM Primary Inspector:Jerry YVEp!in Phone: 704-603-1098 Smoundory|nspootzr(a): Kathryn 8Peterson William Buummer Reason for Inspection: Routine Inspection Type: Compliance Evaluation Permit Inspection Type: Stone, Clay, Glass, and Concrete Products S0onnwator Discharge COC Facility Status: Fl Compliant Not Compliant Question Areas: N Storm Water (See attachment summary) Page of Permit: NCG070175 Owner-Facility:Gold Bond Building Products LLC Inspection Date: 05/22/2024 Inspection Type:Compliance Evaluation Reason for Visit: Routine Inspection Summary: A compliance evaluation inspection was conducted at the facility. Adam Lynch and Mike Thompson were present representing the facility. Review of the Stormwater Pollution Prevention Plan (SWPPP)was last documented in November of 2021. Review of the SWPPP is required annually. The SWPPP contains a site map however it was not clear that all storm drains travel to one of the facilitys known outfalls. Facility personnel also could not verify that roof drainage reaches one of the known outfalls. The SWPPP contains a Good Housekeeping section, however houskeeping at the facility should be improved. Powdery material was observed outside of roll up doors and coating much of the roadways internal to the facility. The facility operates a street sweeper to minimize this issue. The SWPPP does not have a Solvent Management Plan section. This is a requirement of the permit. Illicit(non-stormwater) discharge monitoring has not occurred. Illicit discharge monitoring is required annually. Analytical monitoring has not occurred. Analytical monitoring is required at each outfall on a quarterly basis. The facility has not registered to submit discharge monitoring reports via e-DMR. The facility receives dry material (gypsum) by truck and the trucks are required to go through a tire wash prior to exiting the facility. This is listed as one of the stormwater Best Management Practices. NC DEQ received a complaint about trucks dropping material onto the nearby roadways. At the time of this inspection, the tire wash was not operational. Facility personnel indicated that the tire wash is currently being repaired/replaced and that the existing tire wash collapsed. No firm date for when the tire wash would be active again was available. Facility personnel speculated that it would be operational soon. The outfalls were observed during this inspection. Two of the outfalls were slightly difficult to access due to overgrowth of weeds and bushes. Clear access to the outfalls should be maintained. Page 2 of 4 ~ , Permit: wCG07m75 Owner'Facility:Gold Bond Building Products uo Inspection Date: 05/22m024 Inspection Type:Compliance Evaluation Reason for Visit: nowonv Stormwater Pollution Prevention Plan Yes No NA NE Does the site have aStormwoter Pollution Prevention Plan? N Fl El [l #Does the Plan include a General Location(UGGG)map? N El E7 El #Does the Plan include a"Narrative Description ofPnacLioeo^? #Does the Plan include a detailed site map including outfall locations and drainage areas? #Does the Plan include a list of significant spills occurring during the past 3 years? 0 Fl Fl [l #Has the facility evaluated feasible alternatives tn current practices? #Does the facility provide all necessary secondary containment? #Does the Plan include a BMPuummary? #Does the Plan include u Spill Prevention and Response Plan(GPRP)? 11 El El [l #Does the Plan include u Preventative Maintenance and Good Housekeeping Plan? #Does the facility provide and document Employee Training? #Does the Plan include list nfResponsible Party(a)? E Fl F1 Fl #|o the Plan reviewed and updated annually? El N 00 #Does the Plan include a8tormwakar Facility Inspection Program? 0Fln11 Has the 8k/nnwa$*rPo||ution Prevention Plan been implemented? E Fl El E] Comment: The facility has not prepared a Solvent Management Plan section for the Stormwater Pollution Prevention Plan (SWPPP), as is required by the permit. A site map was included in the SWPPP, however it was not clear that all stormdrains within the facility reach a known outfall. Furthermore, facility personnel could not verify whether roof drain discharge reaches a known outfall, The SWPPP contains a Good Houskeeping section, however housekeeping at the facility should be improved, Powde!y material was observed outside of roll up doors an coated much of the internal roadways. The facility operates a street sweeper to minimice this issue. Review of the SWPPP was last documented...in November 2021. Qualitative Monitoring Yes No NA NE Has the facility conducted its Qualitative Monitoring? N El [lFl Comment: Qualitative Monitoring was last documented in February 2024 and had been completed semi-annually prior to that. This is a reminder that the renewed permit now reguires quarterly Qualitative Monitoring. Analytical MonilgLing Yes No NA NEi Has the facility conducted its Analytical monitoring? 1:1 N El El #Has the facility conducted its Analytical monitoring from Vehicle Maintenance areas? El11F71l Page 3of4 Permit: NCG070175 Owner-Facility:Gold Bond Building Products LLC Inspection Date: 05/22/2024 Inspection Type:Compliance Evaluation Reason for Visit: Routine Comment: The facility has not completed Analytical Monitoring. The permit requires quarterly analytical monitoring starting with the first quarter of 2024. Therefore, the first quarter's required sampling event was missed. Facility has not registered to submit discharge monitoring reports with e-DMR. Permit and Qutfalls Yes No NA NE #Is a copy of the Permit and the Certificate of Coverage available at the site? ■ ❑ ❑ ❑ #Were all outfalls observed during the inspection? M ❑ ❑ ❑ #If the facility has representative outfall status, is it properly documented by the Division? ❑ ❑ ® ❑ #Has the facility evaluated all illicit(non stormwater)discharges? ❑ ® ❑ ❑ Comment: The required annual illicit(non-stormwater) discharge evaluations have not been completed. Page 4 of 4