Conservation Commission - Regular Meeting - 2026.09.14_ConservationCommission.Materials.pdf
The Dover Conservation Commission met on September 14, 2026. The previous meeting's minutes were approved with a vote of 3 in favor, 2 abstentions. The Commission discussed updates on the 318 Dover Point Road shore stabilization and Pine Hill Cemetery. The Commission reviewed three conditional use permits: for Mitchell Dollins regarding 77 Long Hill Rd parking area updates (17,300 sf buffer impacts); for Ethan and Stephanie Ward for a residential Accessory Dwelling Unit at 7 Fieldstone Dr (877 sf new impacts); and for Christopher and Genevieve Croasdale for a garage and deck at 105 Spur Rd (1,450 sf permanent, 600 sf temporary impacts). The Technical Review Committee is scheduled for September 17th for COND-2026-0034. Following reports, the Commission announced a Birding Adventure event occurred on September 13th. Source: https://publicrecords.dover.nh.gov/TempFiles/09102226335250_2026.09.14_ConservationCommission.Materials.pdf
CITY OF DOVER DOVER CONSERVATION COMMISSION – AGENDA REVISED Meeting Type: Regular Meeting Meeting Location: City Council Conference Room - 288 Central Avenue Dover NH Meeting Date: Monday, September 14, 2026 Meeting Time: 5:30 pm Document Created by: Planning Department 2026.09.14_ConservationCommission.Agenda.REVI SED Document Posted on: September 10, 2026 Page 1 of 1 1. CALL TO ORDER AND ROLL CALL 2. CITIZEN’S FORUM 3. APPROVAL OF THE PRIOR MEETING MINUTES – August 10, 2026 4. OLD BUSINESS A. 318 Dover Point Road Site Visit for Shore Stabilization Construction. Item went before the board on May 11, 2026 B. Cemetery Board Meeting Update regarding Pine Hill Cemetery 5. NEW BUSINESS A. City of Dover Conditional Use Permit for Mitchell Dollins, (Owners: Jehovah’s Witnesses, Inc), Map A, Lot 16-H, zoned R-12, located at 77 Long Hill Rd. Proposal is to update a parking area, there is currently 17,300 sf of impacts to the buffer, the proposal will not result in additional total permanent impacts to the buffer. There are no proposed direct impacts to the Wetland. (COND-2026-0034) B. City of Dover Conditional Use Permit for Ethan and Stephanie Ward, Map A, Lot 39-2, zoned R-40, located at 7 Fieldstone Dr. Proposal is for a residential Accessory Dwelling Unit located within the wetland buffer. The proposed unit overlaps an existing walkway, the total impacts are 1,433 sf, new impacts including the existing walkway would be 877 sf. (COND-2026-0038) C. City of Dover Conditional Use Permit for Christopher and Genevieve Croasdale Trustees of the Croasdale Family Revocable Trust Map L, Lot 22, zoned R-20 and Riverfront Overlay, located at 105 Spur Rd. Proposal is seeking relief from the Conservation District for construction of a 24’ x 24’ garage and a 10 ft wide deck addition. Resulting in 1450 sf of permanent impacts and 600 sf of temporary impacts. (COND-2026-0039) D. Knox Marsh Development Preliminary Discussion 6. REPORT FROM THE CHAIR A. Review of Correspondence Received from NH Department of Environmental Services 7. OTHER BUSINESS A. Birding Adventure Event Sunday September 13th 8. ADJOURNMENT CITY OF DOVER DOVER CONSERVATION COMMISSION – MINUTES Meeting Type: Regular Meeting Meeting Location: City Council Conference Room - 288 Central Avenue, Dover, NH Meeting Date: Monday August 10, 2026 Meeting Time: 5:30 pm Document Created by: Jessica Marchant 2026.08.10_ConservationCommission.MinutesDRAF T Posted: August 12, 2026 Page 1 of 2 MEMBERS PRESENT: Bill Hunt (Chair), Steve Fellows (Vice Chair), Thomas Fargo, Brianna Group, Marc Hiller (Alternate) Absent (Excused): Abigail Lyon, Kristen Murphy (Alternate), Robert Atwood (Secretary), Russ Warnock Absent (Unexcused): STAFF PRESENT: Makayla Edgecomb (Conservation Planner) OTHERS PRESENT: 1. CALL TO ORDER AND ROLL CALL The meeting was convened at 5:30PM 2. CITIZENS’ FORUM Kim Faustino commented about Willand Pond noting NHDES will be out this week doing some testing and assessment. She gave additional details and mentioned a program which was full so she could not participate and mentioned another volunteer opportunity she would like to participate in. 3. APPROVAL OF THE PRIOR MEETING MINUTES- July 13, 2026 T. Fargo moved to approve the minutes of June 8 as submitted. B. Group seconded. Vote: 3 in favor, none opposed and 2 abstentions. Vote passes 4. OLD BUSINESS A. Smith Well Lot Access Update M. Edgecomb gave an update following communication with the state and Community Services to allow access. Some signage needs to go up for the areas which are restricted. Feedback from a member of the Commission was for the City to support a loop trail the public can utilize. Feedback from a member of the public for positive signage as well, noting the location of the trail and that it does allow for public access. B. Willand Pond Update M. Edgecomb noted NHDES reported back from their assessment that a decent amount of milfoil was removed through the manual DASH application. They noted there is a lot of fragmentation. Staff had a call with them to go over future DES permitting and costs for the project. Some discussion occurred about a subcommittee or ad hoc committee for this topic. 5. NEW BUSINESS A. City of Dover Conditional Use Permit for Dover NH Property LLC, Map E, Lot 24 zoned IT located at 100-150 Waumbec Dr. Proposal is to replace a failing culvert located on a section of the Community Trail. Proposal results in 264 sf of temporary impacts and 249 sf of permanent impacts of Conservation District and Wetland Impacts. Anthony from Aqualis presented the item. This is the group contracted to do the work. He explained the proposal and the work to be done. T. Fargo gave some history of the area, from when he was Conservation Commission chair. Noting previous concerns of de-icing salt being used in the area and corrosion to the culvert. CITY OF DOVER DOVER CONSERVATION COMMISSION – MINUTES Meeting Type: Regular Meeting Meeting Location: City Council Conference Room - 288 Central Avenue, Dover, NH Meeting Date: Monday August 10, 2026 Meeting Time: 5:30 pm Document Created by: Jessica Marchant 2026.08.10_ConservationCommission.MinutesDRAF T Posted: August 12, 2026 Page 2 of 2 The applicant confirmed the culvert will be plastic, and permits have gone to NHDES and been received back with conditions. T. Fargo moved to approve the CUP as presented. S. Fellows seconded. Vote: All in favor 6. REPORT FROM THE CHAIR A. Review of Correspondence Received from NH Department of Environmental Services One request for more information was received. M. Edgecomb explained the correspondence. 7. OTHER BUSINESS A. Ash Tree Outreach Event M. Edgecomb explained the details of the event Monday August 17th at 5pm. 8. ADJOURNMENT S. Fellows moved to adjourn. B. Group seconded. Vote: All in favor The meeting was adjourned at 5:57 PM. CITY OF DOVER CONSERVATION COMMISSION - STAFF MEMO FILE #COND-2026-0034 Application Type: Conditional Use Permit Applicant(s): Deborah Mann Owner(s): Mitchell Dollins, (Owners: Jehovah’s Witnesses, Inc) Location: Meeting Date: 77 Long Hill Rd (Map A, Lot 16-H) September 14, 2026, 2026 INTENT: Proposal is a Conditional Use Permit (CUP) seeking relief from the Wetlands Protection District for updates to a parking area located within the wetland buffer. AGENDA ITEM #: 5-A FILE: COND-2026-0034 OWNER: Mitchell Dollins, (Owners: Jehovah’s Witnesses, Inc) APPLICANT: Deborah Mann LOTS/UNITS PROPOSED: N/A ACREAGE: 2.79 ± ac. ZONING DISTRICT: R-12 EXISTING/PROPOSED LAND USE: Residential SURROUNDING LAND USE: Residential WAIVERS REQUESTED: N/A ZBA ACTION: N/A PERMITS REQUIRED: City of Dover CUP for proposed Wetland Protection District impacts APPLICATION IS COMPLETE: Yes TECHNICAL REVIEW COMMITTEE: Scheduled for September 17th, 2026 ATTACHMENTS: Impact Plan, Application Materials. Summary of Request and Background: The applicant is proposing to update an existing parking lot. The proposal will reduce the current parking lot coverage, and to include a new underdrain pipe system. Additional stormwater runoff mechanisms are proposed and are located within the buffer area. Proposal results in a total of 17,300 sf of impacts to the buffer, not changing from what is currently on site. Consistency with Land Use Regulations – CUP 170-28.F The Wetlands Protection District ordinance §170-28.F provides for Conditional Use Permits to allow impacts to the Wetlands Protection District if standards related to demonstration that no practicable alternative is available, impact avoidance was considered, impacts were minimized, mitigation has been sought, and approval of the wetlands impact from NHDES Wetlands Bureau has been granted. Planning Staff feels that the applicant considered and met all of the criteria as specified in §170-28.F per their narrative. Planning Staff have reviewed the materials submitted by the applicant and the following items are of note. A temporary silt fence will be located constructed before any work begins. The current stormwater flow goes directly into the wetlands, these improvements will treat any runoff. No direct wetlands are proposed to be impacted. Applicant understands that any alterations to impacts that come as a result of the scheduled TRC meeting will need to go back before the Conservation Commission. PERMIT SNAPSHOT REPORT COND-2026-0034 FOR CITY OF DOVER, N.H. Conditional Use 08/27/2026 App Date: Project: Permit Type None Environmental NOT AVAILABLE Exp Date: District: Work Class: 0.00 In Review NOT COMPLETED Completed: Square Feet: Status: Description: Valuation: Parking lot repairs and improvements and installation of energy efficient site lighting in site first developed in 1984. Some work will affect buffers of delineated wetlands so prevention of infiltration will be added, namely a silt fence and water treatment area. Next phase of project will improve drainage from and under parking lot, employing the newly created water treatment area. The parking area has been/will be downsized from 30,500+/- square feet to 27,000+/- square feet. $0.00 Assigned To: Edgecomb, Makayla Approval Expire Date: Parcel: Main A0016-H00000 Address: 77 Long Hill Rd Dover, NH Main Zone: R-12(Residential - Medium Density) Project Manager Joseph Greenler Home: (603) 722-5670 Mobile: (603) 722-5670 Owner Mitchell Dollins Home: (603) 767-3221 Mobile: (603) 767-3221 Plan Preparer Fran Lapoint Home: (603) 504-5348 Mobile: (603) 504-5348 Applicant Deborah Mann 420 Province Rd #POB328 Gilmanton, NH 03237 Home: (603) 455-7759 Mobile: (603) 455-7759 Permit Custom Fields Select Permit Type Wetland Protection District General Purpose Alteration / Addition Project Zone Residential What is the parcel zoned? R-12 New Change in Impervious/Paved Area (sq ft) 0 Work 1. Parking lot and driveway surface has been milled and relayed as an emergency measure after winter damage resulted in unsafe surface. It was restriped to the shape, size and layout of our proposed final project. The original parking area was about 30,500 square feet, the new parking area is about 3,000 square feet SMALLER. 2. This fall we propose to add a silt fence and water treatment area at the back side of the parking lot and install new site lighting mostly within the wetlands buffer zone, energy efficient pole lights on pre-cast bases, with a minimal trenching for wiring. We will also be replacing the conduit at Long Hill Road. The work this fall will also include some landscaping and hardscaping near the building which will not effect the wetlands. In 2027 or 2028 the parking lot will be further Page 1 of 2 City of Dover September 04, 2026 PERMIT SNAPSHOT REPORT (COND-2026-0034) improved with added drainage to the water treatment area and final asphalt surfacing. permitstatefed Attachment File Name Added On Added By Attachment Group Notes Signature_Deborah_Mann_8/27/2026.jp g 08/27/2026 11:52 Mann, Deborah Uploaded via CSS Permit Snapshot Report.pdf 08/27/2026 11:53 Service, EnerGov Attached by IO - ATTACH: Initial Permit Snapshot Invoice No. Amount Paid Fee Fee Amount INV-2026003131 $250.00 Planning General Application Fee $250.00 $250.00 $250.00 Total for Invoice INV-2026003131 Grand Total for Permit $250.00 $250.00 Submittal Name Status Received Date Due Date Complete Date Resubmit Completed In Review Conditional Use Review v.1 08/27/2026 09/10/2026 No No Completed Date Due Date Assigned Date Status Assigned User Department Item Review Name Planning Planning Edgecomb, Makayla In Review 08/27/2026 09/10/2026 Workflow Step / Action Name Action Type Start Date End Date Review v.1 08/27/2026 0:00 Confirm application complete v.1 Generic Action 08/27/2026 15:59 Conditional Use Review v.1 Receive Submittal 08/27/2026 15:59 Planning Board v.1 Planning Board Agenda v.1 Task Invoice for Notices v.1 Task Send Notices v.1 Task Planner Creates Staff Recommendations v.1 Permit Activity Distribute Planning Board Materials v.1 Task Planning Board Hearing v.1 Hold Hearing Planning Board Decision v.1 Permit Activity NOD Sent to Applicant v.1 Create Report Issue Permit v.1 Verify Fees Prior to Permit v.1 Generic Action Issue and Review Permit v.1 Generic Action Print and Email Permit v.1 Generic Action Plans uploaded to Treeno v.1 Generic Action Internal Notification of Plan Completion v.1 Generic Action Recording v.1 Task Page 2 of 2 City of Dover September 04, 2026 t :1 a ! ' r I -----· - I I I I 11 ! • 1 o • ~ ~ .0 ll n_ •:O:•[O ■ l 0, II O : : : f j t I t 1 I : I I I I i ------ 1 j I i I I 1 ! I -0 J ~ LO .,:: J ~ CITY OF DOVER CONSERVATION COMMISSION - STAFF MEMO FILE #COND-2026-0038 Application Type: Conditional Use Permit Applicant(s): Ashley Rowe Owner(s): Ethan and Stephanie Ward Location: Meeting Date: 7 Fieldstone Dr (Map A, Lot 39-2) September 14, 2026, 2026 INTENT: Proposal is a Conditional Use Permit (CUP) seeking relief from the Wetlands Protection District for a residential Accessory Dwelling Unit located within the wetland buffer. AGENDA ITEM #: 5-B FILE: COND-2026-0038 OWNER: Ethan and Stephanie Ward APPLICANT: Ashley Rowe LOTS/UNITS PROPOSED: One Accessory Dwelling Unit ACREAGE: 3.62 ± ac. ZONING DISTRICT: R-40 EXISTING/PROPOSED LAND USE: Residential SURROUNDING LAND USE: Residential WAIVERS REQUESTED: N/A ZBA ACTION: N/A PERMITS REQUIRED: City of Dover CUP for proposed Wetland Protection District impacts APPLICATION IS COMPLETE: Yes TECHNICAL REVIEW COMMITTEE: N/A ATTACHMENTS: Impact Plan, Application Materials. Summary of Request and Background: The applicant is proposing a detached garage with an Accessory Dwelling Unit on top for the intended purpose of moving the applicant’s parents onto their parcel. The proposed unit overlaps an existing walkway, the total impacts are 1,433 sf, new impacts, not including the existing walkway, would be 877 sf Consistency with Land Use Regulations – CUP 170-28.F The Wetlands Protection District ordinance §170-28.F provides for Conditional Use Permits to allow impacts to the Wetlands Protection District if standards related to demonstration that no practicable alternative is available, impact avoidance was considered, impacts were minimized, mitigation has been sought, and approval of the wetlands impact from NHDES Wetlands Bureau has been granted. Planning Staff feels that the applicant considered and met all of the criteria as specified in §170-28.F per their narrative. Planning Staff have reviewed the materials submitted by the applicant and the following items are of note. The Accessory Dwelling Unit proposed is for the applicant’s parents, with the home remaining owner occupied. The proposed construction area has a walkway located. The instillation of a new septic tank, as there is no placement that could meet the 75-foot setback form the boundary. PERMIT SNAPSHOT REPORT COND-2026-0038 FOR CITY OF DOVER, N.H. Conditional Use 09/04/2026 App Date: Project: Permit Type None Environmental NOT AVAILABLE Exp Date: District: Work Class: 0.00 In Review NOT COMPLETED Completed: Square Feet: Status: Description: Valuation: Proposed project is to build an ADU in previously disturbed area within the wetland buffer and expand existing septic to accommodate. $0.00 Assigned To: Edgecomb, Makayla Approval Expire Date: Parcel: Main A0039-002000 Address: 7 Fieldstone Dr Dover, 03820 Main Zone: R-40(Residential - Rural) Owner Ethan Ward Home: (207) 239-2466 Applicant Lauren Peyser PO box 249 Rochester, NH 03866 Business: (603) 335-3948 Plan Preparer Ashley Rowe PO Box 249 Rochester, NH 03866 Business: (603) 335-3948 Mobile: (603) 842-2284 Project Manager Ashley Rowe PO Box 249 Rochester, NH 03866 Business: (603) 335-3948 Mobile: (603) 842-2284 Permit Custom Fields Select Permit Type Wetland Protection District General Purpose Alteration / Addition Project Zone Residential What is the parcel zoned? R-40 New Change in Impervious/Paved Area (sq ft) 987 Work Residential ADU proposed for applicants parents within the 50' wetland buffer. The area is currently yard space/ driveway, where the ADU and stairs/balcony is proposed to cover 1,544 SF, 557 SF is previously paved area. A septic tank is proposed within the 75' buffer and will tie into an expanded leach field after permit approval. permitstatefed NHDES ISDS permit: will be submitted contingent on decision of City of Dover Conditional Use Permit. Attachment File Name Added On Added By Attachment Group Notes Signature_Lauren_Peyser_9/4/2026.jpg 09/04/2026 8:59 Peyser, Lauren Uploaded via CSS Permit Snapshot Report.pdf 09/04/2026 9:00 Service, EnerGov Attached by IO - ATTACH: Initial Permit Snapshot Invoice No. Amount Paid Fee Fee Amount INV-2026003197 $0.00 Planning General Application Fee $250.00 $0.00 Planning Impervious Paved Area Fee $69.09 $319.09 $0.00 Total for Invoice INV-2026003197 Grand Total for Permit $319.09 $0.00 Submittal Name Status Received Date Due Date Complete Date Resubmit Completed In Review Conditional Use Review v.1 09/04/2026 09/11/2026 No No Completed Date Due Date Assigned Date Status Assigned User Department Item Review Name Planning Planning Edgecomb, Makayla In Review 09/04/2026 10/02/2026 Workflow Step / Action Name Action Type Start Date End Date Page 1 of 2 City of Dover September 04, 2026 PERMIT SNAPSHOT REPORT (COND-2026-0038) Review v.1 09/04/2026 0:00 Confirm application complete v.1 Generic Action 09/04/2026 12:38 Conditional Use Review v.1 Receive Submittal 09/04/2026 12:38 Planning Board v.1 Planning Board Agenda v.1 Task Invoice for Notices v.1 Task Send Notices v.1 Task Planner Creates Staff Recommendations v.1 Permit Activity Distribute Planning Board Materials v.1 Task Planning Board Hearing v.1 Hold Hearing Planning Board Decision v.1 Permit Activity NOD Sent to Applicant v.1 Create Report Issue Permit v.1 Verify Fees Prior to Permit v.1 Generic Action Issue and Review Permit v.1 Generic Action Print and Email Permit v.1 Generic Action Plans uploaded to Treeno v.1 Generic Action Internal Notification of Plan Completion v.1 Generic Action Recording v.1 Task Page 2 of 2 City of Dover September 04, 2026 Bellamy River Spur Road L-22-0 L-23-0 L-21-0 1. EXISTING CONDITIONS PLAN BY ATLANTIC SURVEY - 105 SPUR ROAD DOVER NH - DATED 6/18/26 CITY OF DOVER CONSERVATION COMMISSION - STAFF MEMO FILE #COND-2026-0039 Application Type: Conditional Use Permit Applicant(s): Farwell Engineering Owner(s): Christopher and Genevieve Croasdale Trustees of the Croasdale Family Revocable Trust Location: Meeting Date: 105 Spur Road (Map L, Lot 22) September 14, 2026 INTENT: Proposal is for a Conditional Use Permit (CUP) seeking relief from the Conservation District for construction of a 24’ x 24’ garage and a 10 ft wide deck addition. AGENDA ITEM #: 5-C FILE: COND-2026-0039 OWNER: Christopher and Genevieve Croasdale Trustees of the Croasdale Family Revocable Trust APPLICANT: Farwell Engineering LOTS/UNITS PROPOSED: N/A (no change) ACREAGE: 0.34 ± ac. ZONING DISTRICT: R-20, Conservation District EXISTING/PROPOSED LAND USE: Residentail SURROUNDING LAND USE: Residential, Bellamy River WAIVERS REQUESTED: N/A ZBA ACTION: N/A PERMITS REQUIRED: City of Dover CUP for proposed Conservation District impacts and NHDES Shoreland Permit APPLICATION IS COMPLETE: Yes TECHNICAL REVIEW COMMITTEE: N/A ATTACHMENTS: Impact Plan, Application Materials. Summary of Request and Background: The applicant is proposing construction of a 24’ x 24’ garage and a 10 ft wide deck addition. Total impacts results in 1450 sf of permanent impacts and 600 sf of temporary impacts within the 100-foot Conservation District boundary, the Conservation District regulations were considered for the request. Proposed location adheres to current setbacks and zoning. Consistency with Land Use Regulations – CUP 170.27.C The Conservation District ordinance §170.27.C provides for Conditional Use Permits to allow impacts to the Conservation District if standards related to demonstration that the use is essential to the productive use of land, a soil erosion and sedimentation control plan is submitted, state and federal approvals have been applied for, and a written review by the Conservation Commission has been sought. Planning Staff have reviewed the materials submitted by the applicant and the following items are of note. To avoid further Conservation District impacts, to adhere to zoning setbacks, this is the location that has the least amount of Conservation District impacts. Silt fences are proposed on the downhill side during construction, with inspections after any rain events with repairs as necessary. · · ·· · · · · · · · · · · · · ·· P I P E D E S I G N A T I O N P I P E S I Z E & M A T E R I A L I N V . I N I N V . O U T P I P E L E N G T H P I P E S L O P E ( f t / f t ) P 1 0 1 A 6 " H D P E N - 1 2 1 5 0 . 9 2 1 5 0 . 8 5 8 . 0 0 0 . 0 0 9 P 1 0 1 B 1 2 " H D P E N - 1 2 1 5 0 . 9 0 1 5 0 . 8 5 5 . 0 0 0 . 0 1 0 P D 0 1 1 2 " H D P E N - 1 2 1 5 0 . 7 5 1 5 0 . 5 5 3 7 . 7 5 0 . 0 0 5 P C 0 1 6 " H D P E N - 1 2 1 5 0 . 7 5 1 5 0 . 5 5 4 0 . 0 0 0 . 0 0 5 P D 0 2 1 5 " H D P E N - 1 2 1 5 0 . 4 5 1 5 0 . 2 5 3 7 . 5 0 0 . 0 0 5 S T R U C T U R E N A M E P O N D D E S I G N A T I O N S T A T I O N I N G O F F S E T D I A M E T E R ( F T ) R I M T Y P E R I M E L E V A T I O N I N V . I N P I P E D E S I G N A T I O N I N P I P E S I Z E & M A T E R I A L I N V . O U T P I P E S I Z E & M A T E R I A L P I P E D E S I G N A T I O N O U T O U T L E T S T R U C U T R E # 1 0 1 A 1 0 1 P N / A N / A 4 L I F T M A T E R - 1 7 4 3 - L M W / F L A T T O P 1 5 4 . 0 0 1 5 0 . 9 2 6 " U . D . 6 " P V C 1 5 0 . 9 2 6 " H D P E N - 1 2 P 1 0 1 A O U T L E T S T R U C U T R E # 1 0 1 B 1 0 1 P N / A N / A 4 C O N E G R A T E 1 5 3 . 5 0 N / A N / A N / A 1 5 0 . 9 1 2 " H D P E N - 1 2 P 1 0 1 B D R A I N M A N H O L E # 1 D 0 1 P N / A N / A 4 L I F T M A T E R - 1 7 4 3 - L M W / F L A T T O P 1 5 4 . 2 5 1 5 0 . 8 5 P 1 0 1 A 6 " H D P E N - 1 2 1 5 0 . 7 5 1 2 " H D P E N - 1 2 P D 0 1 1 5 0 . 8 5 P 1 0 1 B 1 2 " H D P E N - 1 2 1 5 0 . 8 5 6 " R e t W a l l U . D . 1 2 " H D P E N - 1 2 C A T C H B A S I N # 1 1 0 2 P 1 + 7 8 . 3 5 R T . 2 1 . 0 ' 4 T Y P E " B " G R A T E W / F L A T T O P 1 5 3 . 4 0 1 5 0 . 9 7 6 " U . D . 6 " H D P E N - 1 2 1 5 0 . 7 5 6 " H D P E N - 1 2 P C 0 1 D R A I N M A N H O L E # 2 D 0 2 P N / A N / A 4 L I F T M A T E R - 1 7 4 3 - L M W / F L A T T O P 1 5 4 . 2 5 1 5 0 . 5 5 P D 0 1 1 2 " H D P E N - 1 2 1 5 0 . 4 5 1 5 " H D P E N - 1 2 P D 0 2 1 5 0 . 5 5 P C 0 1 6 " H D P E N - 1 2 A 101 A 101 A 101 A 101 B 101 B 101 B 101 B 101 1 The State of New Hampshire Department of Environmental Services Robert R. Scott, Commissioner www.des.nh.gov 29 Hazen Drive • PO Box 95 • Concord, NH 03302-0095 (603) 271-3503 • Fax: (603) 271-2867 • TDD Access: Relay NH 1-800-735-2964 September 03, 2026 DOVER MUNICIPAL CLERK/CONSERVATION COMMISSION 288 CENTRAL AVE DOVER NH 03820 Re: Received Standard Dredge and Fill Wetlands Permit Application (RSA 482-A) NHDES File Number: 2026-02370 Subject Property: 105 Spur Rd, Dover, Tax Map/Block/Lot(s): L/no block/1; L/no block/22-0-0 Dear Sir or Madam: On September 03, 2026, the New Hampshire Department of Environmental Services (NHDES) Wetlands Bureau received the above-referenced Standard Dredge and Fill Wetlands Permit Application (Application). On September 3, 2026, NHDES determined the Application was administratively complete in accordance with RSA 482-A:3, XIV. Please note this letter is not a permit or authorization to begin work. Pursuant to RSA 482-A:11, III, if notification by a local conservation commission, local river management advisory committee, or the New Hampshire Rivers Council pursuant to this paragraph is not received by the department within 14 days (September 9, 2026) following the date the notice is filed with the municipal clerk, the department shall not suspend its normal action, but shall proceed as if no notification has been made. Please include the NHDES file number on the written notification. Please provide a copy of this letter to all local level departments, boards, and commissions. Pursuant to current state laws and regulations, NHDES is not authorized to consider local zoning and regulatory issues pertaining to a project. These issues must be addressed at the local level. If you have any questions, please contact the Wetlands Bureau at (603) 271-2147. Sincerely, Rumi Shrestha Application Receipt Center, Wetlands Bureau Land Resources Management, Water Division www.des.nh.gov 29 Hazen Drive • PO Box 95 • Concord, NH 03302-0095 (603) 271-3503 • Fax: 271-2867 • TDD Access: Relay NH 1-800-735-2964 The State of New Hampshire Department of Environmental Services Robert R. Scott, Commissioner August 24, 2026 Mark Roberts, General Manager Turbocam Enhanced Surfaces 5 Faraday Drive Dover, NH 03820 Re: State Permit to Operate SP-0302 Turbocam Enhanced Surfaces 5 Faraday Drive, Dover, New Hampshire Facility Identification #3301790057; Application #26-0043 Dear Mr. Roberts: The New Hampshire Department of Environmental Services, Air Resources Division (NHDES) hereby issues the enclosed permit in accordance with the New Hampshire Code of Administrative Rules Env-A 100 et seq., New Hampshire Rules Governing the Control of Air Pollution. If you have any questions, please contact Barbara Dorfschmidt of the Permitting and Environmental Health Bureau at (603) 271-0235 or via email at Barbara.D.Dorfschmidt@des.nh.gov. Sincerely, Craig A. Wright Director Air Resources Division CAW/bdd By certified mail #7021 0350 0000 6404 9315 Enclosures: SP-0302 and Engineering Summary ec: USEPA, Region I Bradley Crannell, Turbocam Enhanced Surfaces Andrew Clifford, Turbocam Enhances Surfaces Kristen Berube, Turbocam Enhanced Surfaces City of Dover (all w/enclosures) State of New Hampshire Department of Environmental Services Air Resources Division State Permit to Operate Permit No: SP-0302 Date Issued: August 24, 2026 This certifies that: Turbocam Energy Solutions, LLC 607 Calef Highway Barrington, NH 03825 has been granted a State Permit to Operate for: Two Plasma Spray Processes at the following facility and location: Turbocam Enhanced Surfaces 5 Faraday Drive Dover, NH 03820 Facility ID No: 3301790057 Application No: 26-0043, received April 1, 2026 – State Permit to Operate Renewal which includes devices that emit air pollutants into the ambient air as set forth in the permit application referenced above, which was filed with the New Hampshire Department of Environmental Services, Air Resources Division (department) in accordance with RSA 125-C of the New Hampshire Laws. Request for permit renewal must be received by the department at least 90 days prior to expiration of this permit and must be accompanied by the appropriate permit application forms. This permit is valid upon issuance and expires on August 31, 2031. _______________________________ Director Air Resources Division August 2026 SP-0302 Page 2 of 11 Turbocam Enhanced Surfaces Abbreviations and Acronyms AAL Ambient Air Limit acf actual cubic foot ags above ground surface ASTM American Society of Testing and Materials Btu British thermal units CAS Chemical Abstracts Service cfm cubic feet per minute CFR Code of Federal Regulations CO Carbon Monoxide DER Discrete Emission Reduction Env-A New Hampshire Code of Administrative Rules – Air Related Programs ERC Emission Reduction Credit ft foot or feet ft3 cubic feet gal gallon HAP Hazardous Air Pollutant hp horsepower hr hour kW kilowatt lb pound LPG Liquefied Petroleum Gas MM million MW megawatt NAAQS National Ambient Air Quality Standard NG Natural Gas NHDES New Hampshire Department of Environmental Services (department) NOx Oxides of Nitrogen NSPS New Source Performance Standard O&M Operation and Maintenance PM10 Particulate Matter < 10 microns ppm parts per million psi pounds per square inch RACT Reasonably Available Control Technology RSA Revised Statutes Annotated RTAP Regulated Toxic Air Pollutant scf standard cubic foot SDS Safety Data Sheet SO2 Sulfur Dioxide TSP Total Suspended Particulate tpy tons per consecutive 12-month period USEPA United States Environmental Protection Agency VOC Volatile Organic Compound August 2026 SP-0302 Page 3 of 11 Turbocam Enhanced Surfaces I. Facility Description Turborcam Enhanced Surfaces (the Facility) provides coating solutions for aerospace customers. The Facility operates two plasma spray processes that emit Regulated Toxic Air Pollutants (RTAPs) and require control devices to demonstrate compliance with ambient air limits. II. Emission Unit Identification This permit covers the devices identified in Table 1: Table 1 - Emission Unit Identification Emission Unit ID Device Identification Manufacturer Model Number Installation Date Maximum Design Capacity EU01 Plasma Spray Gun #1 Aimtek PG-140 2014 18.5 pounds metal powder per hour EU02 Plasma Spray Gun #2 Thermach SG-100-90 2018 18.5 pounds metal powder per hour III. Pollution Control Equipment Identification Air pollution control equipment listed in Table 2 shall be operated at all times that the associated devices are operating. Table 2 - Pollution Control Equipment Identification Pollution Control Equipment ID Description Purpose Emission Unit Controlled PCE01 Cartridge-type Dust Collector Donaldson Company, Inc. Model #DFO4-32 Serial #4130290-1r Control of particulate matter and RTAPs EU01 PCE02 Cartridge-type Dust Collector Donaldson Company, Inc. Model #DFE4-16 Serial #12055259-L1-1 Control of particulate matter and RTAPs EU02 IV. Stack Criteria EU01 and EU02 shall have exhaust stacks that discharge vertically without obstruction1. V. Operating and Emission Limitations The owner or operator shall be subject to the operating and emission limitations identified in Table 3: Table 3 - Operating and Emission Limitations Item # Requirement Applicable Emission Unit Regulatory Basis 24-hour and Annual Ambient Air Limit The emissions of any Regulated Toxic Air Pollutant (RTAP) shall not cause an exceedance of its associated 24-hour or annual Ambient Air Limit (AAL) as set forth in Env-A 1450.01, Table of All Regulated Toxic Air Pollutants. Facility Wide Env-A 1400 State-only Enforceable Limit 1 There is no impediment to vertical flow and the exhaust stack extends at least 2 feet higher than any roofline within 10 feet of the exhaust stack exit, measured horizontally. August 2026 SP-0302 Page 4 of 11 Turbocam Enhanced Surfaces Table 3 - Operating and Emission Limitations Item # Requirement Applicable Emission Unit Regulatory Basis RTAP Operating Limitations Emissions of RTAPS from plasma spray guns shall be controlled using dust collectors as specified in Table 2 to maintain compliance with the associated 24-hour and annual AAL as set forth in Env-A 1450.01, Table of All Regulated Toxic Air Pollutants. The differential pressure across the dust collector filters shall not exceed 6.0 nor fall below 0.1 inches of water gauge when operating; and The dust collector filters shall be changed out in a manner consistent with the Monitoring Plan submitted with application #26-0043, and updated in accordance with Table 6, Item 3. EU01/PCE01 and EU02/PCE02 Env-A 1400 State-only Enforceable Limit Revisions of the List of RTAPs In accordance with RSA 125-I:5 IV, if the department revises the list of RTAPs or their respective AALs or classifications under RSA 125-I:4, II and III, and as a result of such revision the owner or operator is required to obtain or modify the permit under the provisions of RSA 125-I or RSA 125- C, the owner or operator shall have 90 days following publication of notice of such final revision in the New Hampshire Rulemaking Register to file a complete application for such permit or permit modification. Facility Wide Env-A 1405.04 State-only Enforceable Limit Visible Emission Standards The average opacity shall not exceed 20 percent for any continuous 6- minute period.2 EU01/PCE01 and EU02/PCE02 Env-A 2103.02 VI. Monitoring and Testing Requirements The owner or operator is subject to the monitoring and testing requirements as contained in Table 4: Table 4 – Monitoring and Testing Requirements Item # Method of Compliance Frequency Applicable Unit Regulatory Basis When conditions warrant, the department may require the owner or operator to conduct stack testing in accordance with USEPA or other department approved methods. Upon request by the department Facility Wide RSA 125-C:6, XI 2 Compliance with visible emission limitations shall be determined, upon request by the department, using 40 CFR 60, Appendix A, Method 9, or other department approved method. August 2026 SP-0302 Page 5 of 11 Turbocam Enhanced Surfaces Table 4 – Monitoring and Testing Requirements Item # Method of Compliance Frequency Applicable Unit Regulatory Basis Visible Stack Emissions Conduct observations for visible emissions from the stack. The observation period shall be at least one mintue. Field records/observations shall include the following: 1. Date and time; 2. Name of observer; 3. Sky conditions; 4. Sun location – select a position where the sunlight is not shining directly in the observer’s eyes; 5. Whether or not visible emissions are typical of good plant operation; and 6. Corrective actions or Method 9 observations performed, if any. If visible emissions indicate a problem, then the owner or operator shall: 1. Take immediate corrective action to return the device to normal operation; or 2. Perform a Method 9 visible emissions observation within 24 hours to determine compliance status. Apply corrective actions to re-establish compliance, as necessary. Monthly when the process is operating PCE01 and PCE02 RSA 125-C:6, XI Cartridge Dust Collector Differential Pressure Monitor and record the pressure differential across each cartridge dust collector. Monitor continuously, record daily when operating PCE01 and PCE02 RSA 125-C:6, XI; Env-A 906 and Env-A 911.03(b) If the pressure differential is outside of the operating range specified in Table 3, Item 2(a.), then inspect the unit and take necessary corrective actions to improve the performance of the unit. If the cartridge dust collector cannot be returned to the operating range specified in Table 3, Item 2(a.) within 48 hours of the excursion3, then maintain records of the excursion pursuant to Table 5, Item 5. As noted Inspect pressure sensing lines and gauge Annually Remove the pressure sensing lines and verify that the differential pressure gauge reads zero prior to reinstalling. In accordance with manufacturer’s specifications 3 An excursion occurs when a monitored parameter specified by the permit to document the performance of the air pollution control equipment is above the maximum or below the minimum set point or is outside of the required operating range for that parameter. August 2026 SP-0302 Page 6 of 11 Turbocam Enhanced Surfaces Table 4 – Monitoring and Testing Requirements Item # Method of Compliance Frequency Applicable Unit Regulatory Basis Cartridge Dust Collector Operation Conduct a visual external integrity inspection of the baghouse: The inspection shall include an evaluation of whether all emissions are being vented through the dedicated stack exit; and The inspection shall be conducted by plant personnel familiar with the operation of the baghouse and associated equipment. If conditions indicate that the system may need maintenance, but at least annually PCE01 and PCE02 RSA 125-C:6, XI VII. Recordkeeping Requirements The owner or operator shall be subject to the recordkeeping requirements identified in Table 5: Table 5 - Recordkeeping Requirements Item # Requirement Duration/ Frequency Applicable Unit Regulatory Basis Record Retention and Availability Keep the required records on file. These records shall be available for review by the department upon request. Retain for a minimum of 5 years Facility Wide Env-A 902.01 General Recordkeeping Requirements for Process Operations Maintain the following records for process operations: Total quantity of all materials used in each process that are necessary to calculate emissions, Safety Data Sheets (SDSs) or other documentation containing the concentration of total VOCs, each HAP and RTAP in each raw material used; and Hours of operation of each process per day. Monthly EU01 and EU02 Env-A 903.02 Regulated Toxic Air Pollutants Maintain records documenting compliance with Env-A 1400. Compliance was demonstrated at the time of permit issuance as described in the department’s Application Review Summary for application #26-0043. The source must update the compliance demonstration using one of the methods provided in Env-A 1405 if: There is a revision to the list of RTAPs lowering the AAL or de minimis value for any RTAP emitted from the Facility; The amount of any RTAP emitted is greater than the amount that was evaluated in the Application Review Summary; An RTAP that was not evaluated in the Application Review Summary will be emitted; or Stack conditions (e.g. air flow rate) change. Update prior to process changes and within 90 days of each revision of Env-A 1400 Facility Wide Env-A 902.01 State-only Requirement August 2026 SP-0302 Page 7 of 11 Turbocam Enhanced Surfaces Table 5 - Recordkeeping Requirements Item # Requirement Duration/ Frequency Applicable Unit Regulatory Basis Additional Recordkeeping Requirements: Pollution Control Equipment Maintain records of all air pollution control equipment activities required in Table 5, including: The information recorded in Table 4, Item 2 for visible stack emission checks; Dust collector inspections Pressure differential measurements; Date, time, duration and probable cause of pollution control equipment monitoring parameter excursions; Air pollution control equipment maintenance activities, including baghouse filter changes; Corrective actions and preventative measures taken; and Method 9 observations4. As specified in Table 5 PCE01 and PCE02 Env-A 906 Permit Deviation Recordkeeping Maintain records of each permit deviation which result in excess emissions or monitoring parameter excursions lasting 48 hours or more. The content of the records is specified in Condition IX.B.2.(e through n). As specified EU01/PCE01 and EU02/PCE02 Env-A 911.03 VIII. Reporting Requirements A. Pursuant to Env-C 203.02(b), Date of Issuance or Filing, written documents shall be deemed to have been filed with or received by the department on the actual date of receipt by the department, as evidenced by a date stamp placed on the document by the department in the normal course of business. B. All emissions data submitted to the department shall be available to the public. Claims of confidentiality for any other information required to be submitted to the department pursuant to this permit shall be made at the time of submission in accordance with Env-C 208.04, Initial Claim of Confidentiality. C. The owner or operator shall be subject to the reporting requirements identified in Table 6 below. 4 If a Method 9 test is conducted, the records shall include a copy of the certification for the person who conducted the test. August 2026 SP-0302 Page 8 of 11 Turbocam Enhanced Surfaces Table 6- Reporting Requirements Item # Requirement Frequency Applicable Emission Unit Regulatory Basis General Reporting Requirements Each report shall be separately and clearly labeled with: 1. The name, mailing address and physical address of the source covered by the report; 2. The operating period covered by the report; 3. The permit number and condition or item number that requires the report submittal; 4. The type of report, using the name of the report as specified in the reporting condition in the permit, that is being submitted; and 5. The date the report was prepared; An owner or operator who submits a report that is a revision to a previously-submitted report shall clearly identify the revised report with the information specified in (a.) above, and indicate which portions of the report have been revised; The owner or operator may submit more than one report with a single cover, provided the owner or operator clearly identifies each report being submitted using the information required in (a.) and (b.) above, if applicable, for each report; and The owner or operator shall submit reports as paper documents or by electronic means. For each report submitted to the department Facility Wide Env-A 907.01 Annual Emissions Report Submit an annual emissions report which shall include the following information: Actual calendar year emissions from each emission unit of each RTAP, reported by CAS number; The methods used in calculating such emissions in accordance with Env-A 705.03, Determination of Actual Emissions for Use in Calculating Emission- Based Fee; The emission factors and the origin of the emission factors; and All information recorded in accordance with Table 5, Item 2(a) and (c). Annually (received by the department no later than April 15th of the following year) EU01 and EU02 Env-A 907.02 Air Pollution Control Equipment Monitoring Plan If the owner or operator determines that the information and procedures documented in the Air Pollution Control Equipment Monitoring Plan submitted with Application 26-0043 need to be changed at any time to accurately represent the activities performed to maintain the control equipment, the owner or operator shall submit a revised monitoring or management plan, as applicable, to the department in writing. Submit to the department within 30 days of any change to the plan PCE01 and PCE02 Env-A 810.01(e) August 2026 SP-0302 Page 9 of 11 Turbocam Enhanced Surfaces Table 6- Reporting Requirements Item # Requirement Frequency Applicable Emission Unit Regulatory Basis Permit Deviation Reporting Requirements Report permit deviations that cause excess emissions, or monitoring parameter excursions lasting 48 hours or more, in accordance with Condition IX.B. As specified EU01/PCE01 and EU02/PCE02 Env-A 911.04 Annual Emission Fee Pay annual emission fee in accordance with Condition XII. Annually (received by department no later than May 15th of the following year) EU01 and EU02 Env-A 705 IX. Permit Deviation Reporting Requirements A. Env-A 100, Purpose; Definitions: 1. A permit deviation is any occurrence that results in an excursion from any emission limitation, operating condition, or work practice standard as specified in either a Title V permit, state permit to operate, temporary permit or general state permit issued by the department. 2. An excess emission is an air emission rate that exceeds any applicable emission limitation. 3. An emission limitation means "emission limitation" as defined in section 302(k) of the Act, namely "a requirement established by the State or the Administrator which limits the quantity, rate, or concentration of emissions of air pollutants on a continuous basis, including any requirement relating to the operation or maintenance of a source to assure continuous emission reduction and any design, equipment work practice or operational standard promulgated under this Act." This term includes "emission standard". B. Env-A 911.04, Reporting Requirements: In the event of a permit deviation that causes excess emissions, or for pollution control equipment monitoring parameter excursions lasting more than 48 hours in duration: 1. Notify the department of the permit deviation and excess emissions by telephone (603- 271-1370), fax (603-271-7053) or e-mail (pdeviations2@des.nh.gov), within 24 hours of discovery of the permit deviation, unless it is a Saturday, Sunday, or state legal holiday, in which event, the department shall be notified on the next day which is not a Saturday, Sunday, or state legal holiday. 2. Submit a written report of the deviation on paper or by electronic means to the department within 10 days of discovery of the permit deviation reported above. The report shall include all of the following information: a. Facility name; b. Facility address; c. Name of the responsible official; d. Facility telephone number; e. A description of the permit deviation, including the applicable permit number and permit condition(s); f. The probable cause of the permit deviation; g. The date and time of the discovery of the permit deviation; h. The actual date(s) and time(s) of the permit deviation; i. The duration of the permit deviation, including the date and time that the device, process or air pollution control equipment returned to operation in compliance with August 2026 SP-0302 Page 10 of 11 Turbocam Enhanced Surfaces an enforceable emission limitation or operating condition; j. The specific device, process or air pollution control equipment that contributed to the permit deviation; k. Any corrective measures taken to address the permit deviation; l. Preventative measures taken to prevent future permit deviations; m. The type and amount of excess emissions that occurred as a result of the permit deviation; and n. The calculation or estimation used to quantify the excess emissions. X. Permit Amendments A. Env-A 612.01, Administrative Permit Amendments: 1. An administrative permit amendment includes the following: a. Corrects typographical errors; b. Identifies a change in the name, address, or phone number of any person identified in the permit, or provides a similar minor administrative change at the source; c. Requires more frequent monitoring or reporting; or d. Allows for a change in ownership or operational control of a source provided that a written agreement containing a specific date for transfer of permit responsibility, coverage, and liability between the current and new permittee has been submitted to the department. 2. The owner or operator may implement the changes addressed in the request for an administrative amendment immediately upon submittal of the request. B. Env-A 612.03, Minor Permit Amendments: Temporary Permits and State Permits to Operate: 1. The owner or operator shall submit to the department a request for a minor permit amendment for any proposed change to any of the conditions contained in this permit which does not qualify as either an administrative or significant amendment. 2. The request for a minor permit amendment shall be in the form of a letter to the department and shall include the following: a. A description of the proposed change; and b. A description of any new applicable requirements that will apply if the change occurs. 3. The owner or operator may implement the proposed change immediately upon filing a request for the minor permit amendment, but shall be subject to enforcement if the department later determines that the change violated any applicable state or federal requirement. C. Env-A 612.04, Significant Permit Amendments: Temporary Permits and State Permits to Operate: 1. The owner or operator shall submit a written request for a permit amendment to the department prior to the implementation of any proposed change which meets one of the following: a. Any proposed change to an existing process or device that results in the following: i. Any increase in allowable hourly or annual emissions of NOx, SO2, VOCs, HAPs or PM10; or ii. Any increase in potential emissions equal to or greater than 5 lb/hr of CO; b. Any proposed change to operating or emission limitations; c. Any proposed change in the type of pollution control equipment; or d. Any proposed change that results in an increase in previously-allowed loading of existing pollution control equipment by greater than 50%. 2. A request for a significant permit amendment shall include the following: a. A complete application form, as described in Env-A 1703 through Env-A 1710, as applicable; b. A description of: i. The proposed change; August 2026 SP-0302 Page 11 of 11 Turbocam Enhanced Surfaces ii. The emissions resulting from the change; and iii. Any new applicable requirements that will apply if the change occurs; and c. Where air pollution dispersion modeling is required for a device pursuant to Env-A 606.02, the information required pursuant to Env-A 606.04. d. An air pollution control equipment monitoring plan or catalyst management plan pursuant to Env-A 810.01 3. The owner or operator shall not implement the proposed change until the department issues the amended permit. XI. Inspection and Entry Department personnel shall be granted access to the facility covered by this permit, in accordance with RSA 125-C:6, VII for the purposes of: inspecting the proposed or permitted site; investigating a complaint; and assuring compliance with any applicable requirement found in the New Hampshire Rules Governing the Control of Air Pollution and/or conditions of any permit issued pursuant to Chapter Env-A 600. XII. Annual Emission Fee Requirements A. Env-A 705.02, Annual Emission Fee: The owner or operator shall pay to the department each year an annual emission fee consisting of an emission-based fee calculated pursuant to (C.) below and a baseline emission fee stated in (D.) below. The owner or operator shall submit, to the department, payment of the annual emission fee so that the department receives it on or before May 15th for emissions during the previous calendar year. For example, the fees for calendar year 2026 shall be received on or before May 15, 2027. B. Env-A 705.03, Determination of Actual Emissions for use in Calculating of Emission-based Fee: The owner or operator shall determine the total actual annual emissions from the emission units listed in Table 1 for each calendar year in accordance with the methods specified in Env-A 705.03. C. Env-A 705.04, Calculation of Emission-based Fee: The owner or operator shall calculate the annual emission-based fee for each calendar year in accordance with the procedures specified in Env-A 705.04 and the following equation: 𝐹𝐹𝐹𝐹𝐹𝐹= 𝐸𝐸∗𝐷𝐷𝐷𝐷𝐷𝐷 where: FEE = The annual emission-based fee for each calendar year as specified in Env-A 705; E = Total actual emissions as determined pursuant to (B.) above; and DPT = The annual fee, in dollars per ton of emissions, which the department has calculated in accordance with Env-A 705.04. D. Env-A 705.06, Payment of Annual Baseline Emission Fee: In addition to the annual emission-based fee, the owner or operator shall pay to the department each year an annual baseline emission fee pursuant to the following: 1. Env-A 705.07(a), $1,250; or 2. Env-A 705.06(c), If the owner or operator is not required to pay an emission-based fee for any calendar year because the Facility had zero reportable emissions, the annual baseline fee shall be $500 in lieu of the fee stated in (D.)(1.) above. PERMIT APPLICATION REVIEW SUMMARY New Hampshire Department of Environmental Services Air Resources Division P.O. Box 95, 29 Hazen Drive Concord, NH 03302-0095 Phone: 603-271-1370 Fax: 603-271-7053 Facility: Turbocam Enhanced Surfaces Engineer: B. Dorfschmidt Location: 5 Faraday Drive, Dover, NH 03820 AFS #: 3301790057 Application #: 26-0043 Date: August 24, 2026 Page 1 of 3 PROJECT DESCRIPTION Turbocam Enhanced Surfaces (the Facility) submitted this application (26-0043) for the renewal of the State Permit to Operate SP-0302 which expires on June 30, 2026. The application was received on April 1, 2026. Since the application was received 90 days prior to the expiration date, application shield provisions apply. A completeness letter was sent April 15, 2026. CHANGES FROM PREVIOUS PERMIT • Both emission stacks from the process now exhaust vertically and without obstruction. • Formatting for the permit was updated for compliance with the Americans with Disability Act. FACILITY DESCRIPTION The Facility provides coating solutions for aerospace customers. The Facility operates two plasma spray processes that emit RTAPs and require control devices to demonstrate compliance with ambient air limits. PROCESS/DEVICE DESCRIPTION Table 1 – Emission Unit Identification Emission Unit ID Description of Emission Unit Manufacturer Model Number Installation Date Maximum Design Capacity EU01 Plasma Gun #1 Aimtek PG-140 2014 18.5 pounds metal powder per hour EU02 Plasma Gun #2 Thermach SG-100-90 2018 18.5 pounds metal powder per hour POLLUTION CONTROL EQUIPMENT Emissions of metal constituents from the plasma spray process are controlled using cartridge-type dust collectors with HEPA filters. An updated pollution control equipment monitoring plan was submitted with this application and electronic copies are available in the VIII Technical Information source file. Table 2 – Pollution Control Equipment Identification Pollution Control Equipment ID Description Purpose Emission Unit Controlled PCE01 Donaldson Company, Inc. Model # DFO4-32 Serial # 4130290-1 Control particulate matter and RTAPs EU01 PCE02 Donaldson Company, Inc. Model # DFE4-16 Serial # 12055259-L1-1 Control particulate matter and RTAPs EU02 EMISSION CALCULATIONS The Facility submitted updated calculations via email on May 18, 2026. These calculations were reviewed and found to PERMIT APPLICATION REVIEW SUMMARY Facility: Turbocam Enhanced Surfaces Engineer: B. Dorfschmidt Location: 5 Faraday Drive, Dover, NH 03820 AFS #: 3301790057 Application #: 26-0043 Date: August 24, 2026 Page 2 of 3 be acceptable. Emissions are based on the spray rate, amount of metal in the plasma, a 40% overspray and the filter collection efficiency on 92.4%. The table below summarizes the emissions (actual emissions from 2025) and the RTAP compliance determination method: Table 3 – RTAP Emissions RTAP CAS No. Emissions (lbs/day) Emissions (lbs/yr) Compliance Method Copper fume 7440-50-8 0.00038 0.093 Adjusted In-Stack Copper dust 7440-50-8 0.0034 0.83 Adjusted In-Stack Aluminum dust 7429-90-5 0.000043 0.011 Adjusted In-Stack MODELING Modeling is not required since the Facility is able to demonstrate compliance with Env-A 1400 and the adjusted in-stack concentration method (using controlled emission rates). EMISSION TESTING No emissions testing will be required in this permit. COMPLIANCE STATUS Emission Testing Stack testing of the plasma spray operations has not been conducted. Inspections The Facility was last inspected on July 27, 2025. It was noted that the stack for EU02/PCE02 did not exhaust vertically. Compliance with Env-A 1400 was shown using just the in-stack concentration method. Shortly after the inspection, the stack was converted to make it vertical. Pictures of both stacks are saved in the Facility’s electronic “Photos” folder. Reports/Fees The Facility is up to date will all its reports and fees. REVIEW OF REGULATIONS State Regulations Env-A 600 – Permitting • 606.02(a)(4) – Not Applicable – modeling not needed to demonstrate compliance with Env-A 1400. • 607.01(n) – Not Applicable – facility is a true minor source. • 607.01 (t) – Applicable – control device required to show compliance with Env-A 1400 Env-A 700 – Permit Fee System • 705.02(a) – Applicable – The facility is subject to annual emission-based fees and baseline fee. • 705.05(a) – Applicable – Annual fee due no later than May 15 for previous calendar year’s emissions. • 705.07(a) – Applicable – The facility pays an annual baseline fee of $1,250 for two emission units that emit RTAPs. ($750 for first unit and $500 for second unit) Env-A 800 – Testing and Monitoring Procedures • 810.01(a) –Applicable – Air Pollution Control Equipment Monitoring Plan. Env-A 900 – Recordkeeping and Reporting • 902.01(a) – Applicable – Maintain the required records on file for a minimum of 5 years and make the records PERMIT APPLICATION REVIEW SUMMARY Facility: Turbocam Enhanced Surfaces Engineer: B. Dorfschmidt Location: 5 Faraday Drive, Dover, NH 03820 AFS #: 3301790057 Application #: 26-0043 Date: August 24, 2026 Page 3 of 3 available to the department upon request. • 903.02 – Applicable – Maintain records of process data needed to calculate emissions. • 907.02 – Applicable – Annual emissions report for RTAP-only source shall report RTAPs, by CAS number. • 911 – Applicable – Recordkeeping and reporting for permit deviations or excursions. Env-A 1400 – Regulated Toxic Air Pollutants • 1401.02 – Applicable – Plasma spray guns emit RTAPs which must use a control device to demonstrate compliance. o Also applicable to fume hood and curing oven, which do not require permitting. Emissions from the grit blaster exempt under Env-A 1402.02(y). (See application #25-0309 for details) • 1403.02 – Applicable – Compliance demonstrated using adjusted in-stack concentration method • 1405.01 – Applicable – Permit is required because controlled emissions are needed to show compliance. • 1405.02 – Applicable – Curing oven and fume hood exempt from requiring a permit as uncontrolled RTAP emissions from the processes are below de minimis levels. Env-A 2100 – Particulate Matter and Visible Emissions Standards • 2103.02 – Applicable – Visible emissions shall not exceed 20%. Federal Regulations 40 CFR 60 - New Source Performance Standards (NSPS) • No applicable subparts 40 CFR 61 – National Emissions Standards for Hazardous Air Pollutants • No applicable subparts 40 CFR 63 – National Emissions Standards for Hazardous Air Pollutants at Stationary Sources (NESHAP) • Subpart XXXXXX – Nine Metal Fabrication and Finishing Source Categories – Not applicable – process does not emit Ni, Cd, Cr, Pb, or Mn. A BIRDING A BIRDING ADVENTURE ADVENTURE Discover the Beauty of Local Birds on Conservation Land City of Dover Open Lands Committee & Wild Birds Unlimited 09:00 AM 11:00 AM What to Bring Why Join? Binoculars Comfortable walking shoes Water bottle & snacks Camera with zoom lens (optional) Explore forest, wetlands & grassland habitats Spot a variety of local bird species Guided walk with experienced birdwatchers Learn practical birdwatching tips Learn about the benefits of Conservation SEPTEMBER 13 TH SEPTEMBER 13 TH SUNDAY, SUNDAY, Event is open to all ages. Dogs welcome! Questions? Contact Makayla Edgecomb at (603)516-6008 m.edgecomb@dover.nh.gov BELLAMY RIVER WILDLIFE MANAGEMENT AREA 350 Old Garrison Rd, Dover, NH