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Home My WebLink AboutDAQ-2025-004648 195 North 1950 West • Salt Lake City, Utah Mailing Address: P.O. Box 144820 • Salt Lake City, Utah 84114-4820 Telephone (801) 536-4000 • Fax (801) 536-4099 • T.D.D. 800 346-3128 www.deq.utah.gov Printed on 100% recycled paper State of Utah Department of Environmental Quality Tim Davis Executive Director DIVISION OF AIR QUALITY Bryce C. Bird Director SPENCER J. COX Governor DEIDRE HENDERSON Lieutenant Governor DAQC-924-25 Site 14083 (B1) Tyler Hodson Kilgore Companies, LLC P.O. Box 869 Magna, Utah 84044 Dear Mr. Hodson: Re: Kilgore Companies, LLC – Modification to DAQC-752-25 – Temporary Relocation/Operation – Additional Equipment – Tooele County Your request dated September 17, 2025, to add a cone crusher, triple deck screen, and generator, to the temporary project for Kilgore Companies, LLC - Grantsville Pit, located approximately 5 miles south of Grantsville, on the Mormon Trail Road, Tooele County, Utah, was received by the Utah Division of Air Quality (DAQ) and has been reviewed. The following equipment has now been approved for operation for this temporary project: Metso HP300 cone crusher Deister 7x20 triple deck screen Astec GT screening plant with 129 kW engine Two (2) Caterpillar XQ60 66 hp generators Cat 725 kW generator Caterpillar C27 1105 hp generator JD 6090 225 hp generator Four (4) fuel tanks The State of Utah has permitted portable equipment for Kilgore Companies, LLC on the Approval Order DAQE-AN129310019-18 dated April 12, 2018. The above referenced location is a permitted aggregate facility with established equipment hours of operation and production limits. All equipment operating at this site must be in accordance with the current Approval Order (AO) for this site DAQE-AN0140830002-09 dated May 19, 2009. The production from the portable screening plant when combined with the production from the permanent aggregate processing equipment cannot exceed the 12-month rolling limit established by II.B.3.A of the permanent AO. As per Condition II.B.3.D, crushing and screening operations shall be limited to 450 tons per hour. The hours of generator operation from the relocated engines shall be held to 3,750 hours per rolling 12-month period as per Condition II.B.3.B. September 19, 2025 DAQC-924-25 Page 2 Approval is granted to relocate and operate this equipment at the new location for a period not to exceed 180 operational days. As per Utah Administrative Code (UAC) R307-401-17, the operation of equipment at this temporary site may be for up to 180 working days in any calendar year not to exceed 365 consecutive days, starting from the initial relocation date. The operational days per site cannot be extended beyond the stipulated 365 consecutive day period. The owner/operator shall maintain records of the actual operation hours, days, and production rate, of the above referenced equipment at this relocation site and have the ability to submit the information to the DAQ upon the request of representatives of the Director. Please make certain that the plant operator is aware of all the location specific requirements for this site and the conditions of the aforementioned AO. Federal New Source Performance Standards Subpart OOO requires that initial Method 9 observations be performed for all applicable portable crushers, screens, and attached conveyors. Subpart OOO also mandates that all crushers constructed, modified, or reconstructed on or after April 22, 2008, which are not enclosed, must install spray bars on the equipment and keep maintenance records to ensure proper spray bar operations. Utah Division of Water Quality Storm Water Permits and regulations may apply to this temporary project. Please refer to Utah DEQ Water Quality’s current Storm Water Construction requirements for additional information. This approval for relocation in no way releases the owner or operator from any liability for compliance with all other applicable federal, state, and local regulations including the UAC. If you have any questions regarding this relocation authorization or the temporary relocation process please contact Susan Weisenberg at (385) 306-6512. Sincerely, Jay P. Morris Assistant Director JPM:SW:aj Enclosure: Equipment Modification Request Original Temporary Relocation and June 30, 2025 modification cc: Tooele County Health Department Jay Morris (Sep 18, 2025 09:41:31 MDT) Susan Weisenberg <sweisenberg@utah.gov> Re: [External]TRP authorization for Grantsville equipment modification 1 message Tyler Hodson <Tyler.Hodson@kilgorecompanies.com>Wed, Sep 17, 2025 at 9:24 AM To: Susan Weisenberg <sweisenberg@utah.gov> Good morning Susan, We are needing to make a modiﬁcation to our TRP at our Grantsville Pit in Tooele County, Permit #C-752-25. This will be in addition to the equipment already permitted in the original TRP, but we need to add the following equipment: Equipment Type: Cone Crusher Make/Model: Metso HP300 Serial #: Hp3MAC0380 Manufactured Date: 01/2024 Design Capacity: 300 tph Power: See Cat 27 generator below Equipment type: Screen Make/Model: Deister 7x20 Triple Deck Screen Serial #: 2005664 Manufactured Date: 02/2022 Design Capacity: 700 tph Power: 50 HP Motor Equipment type: Generator Make/Model: Cat C27 Serial #: CAT00C27KT4Z00454 Manufactured Date: Unknown Design Capacity: 725 kw We don't currently have the majority of the equipment listed in their AO (DAQE-AN140830002-09) and we are in the process of working with Trinity Consultants to get our AO updated with the current equipment on-site. The only equipment on-site that's not listed either above or within the TRP is a wash plant with zero emissions. Please let me know if you have any questions or need any other information. Thank you, Tyler Hodson Administrative Environmental Manager (385)228-3653 Tyler.hodson@kilgorecompanies.com From: Susan Weisenberg <sweisenberg@utah.gov> Sent: Thursday, August 7, 2025 10:42 AM 9/17/25, 12:01 PM State of Utah Mail - Re: [External]TRP authorization for Grantsville equipment modification https://mail.google.com/mail/u/0/?ik=bffac613d3&view=pt&search=all&permthid=thread-a:r-5013023871298981112%7Cmsg-f:1843525254960837839…1/2 To: Tyler Hodson <Tyler.Hodson@kilgorecompanies.com> Subject: [External]TRP authorization for Grantsville equipment modiﬁcation CAUTION: This email originated from outside of the organization. Exercise caution when opening attachments or clicking links, especially from UNKNOWN senders. Susan Weisenberg, Environmental Scientist Office: 385-306-6512 9/17/25, 12:01 PM State of Utah Mail - Re: [External]TRP authorization for Grantsville equipment modification https://mail.google.com/mail/u/0/?ik=bffac613d3&view=pt&search=all&permthid=thread-a:r-5013023871298981112%7Cmsg-f:1843525254960837839…2/2 195 North 1950 West • Salt Lake City, UT Mailing Address: P.O. Box 144820 • Salt Lake City, UT 84114-4820 Telephone (801) 536-4000 • Fax (801) 536-4099 • T.D.D. 800 346-3128 www.deq.utah.gov Printed on 100% recycled paper State of Utah Department of Environmental Quality Tim Davis Executive Director DIVISION OF AIR QUALITY Bryce C. Bird Director SPENCER J. COX Governor DEIDRE HENDERSON Lieutenant Governor DAQC-752-25 Site 14083 (B1) Tyler Hodson Kilgore Companies, LLC P.O. Box 869 Magna, Utah 84044 Dear Mr. Hodson: Re: Kilgore Companies, LLC – Modification to DAQC-660-25 – Temporary Relocation/Operation – Additional Equipment – Tooele County Your request dated August 4, 2025, to add a screening plant to the temporary project for Kilgore Companies, LLC - Grantsville Pit, located approximately 5 miles south of Grantsville, on the Mormon Trail Road, Tooele County, Utah, was received by the Utah Division of Air Quality (DAQ) and has been reviewed. The following equipment has now been approved for operation for this temporary project: Astec GT screening plant with 129 kW engine Two (2) Caterpillar XQ60 66 hp generators Caterpillar C27 1105 hp generator JD 6090 225 hp generator Four (4) fuel tanks The State of Utah has permitted portable equipment for Kilgore Companies, LLC on the Approval Order DAQE-AN129310019-18 dated April 12, 2018. The above referenced location is a permitted aggregate facility with established equipment hours of operation and production limits. All equipment operating at this site must be in accordance with the current Approval Order (AO) for this site DAQE-AN0140830002-09 dated May 19, 2009. The production from the portable screening plant when combined with the production from the permanent aggregate processing equipment cannot exceed the 12-month rolling limit established by II.B.3.A of the permanent AO. As per Condition II.B.3.D, crushing and screening operations shall be limited to 450 tons per hour. The hours of generator operation from the relocated engines shall be held to 3,750 hours per rolling 12-month period as per Condition II.B.3.B. August 8, 2025 DAQC-752-25 Page 2 Approval is granted to relocate and operate this equipment at the new location for a period not to exceed 180 operational days. As per Utah Administrative Code (UAC) R307-401-17, the operation of equipment at this temporary site may be for up to 180 working days in any calendar year not to exceed 365 consecutive days, starting from the initial relocation date. The operational days per site cannot be extended beyond the stipulated 365 consecutive day period. The owner/operator shall maintain records of the actual operation hours, days, and production rate, of the above referenced equipment at this relocation site and have the ability to submit the information to the DAQ upon the request of representatives of the Director. Please make certain that the plant operator is aware of all the location specific requirements for this site and the conditions of the aforementioned AO. Federal New Source Performance Standards Subpart OOO requires that initial Method 9 observations be performed for all applicable portable crushers, screens, and attached conveyors. Subpart OOO also mandates that all crushers constructed, modified, or reconstructed on or after April 22, 2008, which are not enclosed, must install spray bars on the equipment and keep maintenance records to ensure proper spray bar operations. Utah Division of Water Quality Storm Water Permits and regulations may apply to this temporary project. Please refer to Utah DEQ Water Quality’s current Storm Water Construction requirements for additional information. This approval for relocation in no way releases the owner or operator from any liability for compliance with all other applicable federal, state, and local regulations including the UAC. If you have any questions regarding this relocation authorization or the temporary relocation process please contact Susan Weisenberg at (385) 306-6512. Sincerely, Jay P. Morris Assistant Director JPM:SW:rh Enclosure: Equipment Modification Request Submitted Temporary Relocation Form cc: Tooele County Health Department Jay Morris (Aug 6, 2025 15:31:41 MDT) Susan Weisenberg <sweisenberg@utah.gov> Portable/Temporary Relocation Form 1 message noreply@qemailserver.com <noreply@qemailserver.com>Tue, Jun 24, 2025 at 11:24 PM Reply-To: trigger@qemailserver.com To: sweisenberg@utah.gov Susan/Chad: Site # -- Kilgore Companies has requested a Temporary Relocation. Please see the information below. Any attachments can be access by clicking on the links. Recipient Data: Time Finished: 2025-06-24 23:24:31 MDT IP: 136.226.86.253 ResponseID: R_1WOmfIWanveLRZI Link to View Results: Click Here URL to View Results: https://utahgov.iad1.qualtrics.com/apps/single-response-reports/reports/ bGgjKdUcQZRcKEuzB2WBSDmsUl1l3CsOO-Tb39_3ev4VZdUu18CYk5NtlOV0rxCXtMzMiFTeFZ56rL5Tb79k3GQXR0_ uiMB2kFWwBAMV1HE1KTy6UXb2I1Unf2Jwq_A0__dkplLDwduAXKsNqAsBkwyMBdgzXN4C pWdmTEpybjkzjGbXjvCuGM49TrVB9GcyGi45qHqdFG5uicokgZdHQjDJdVQPWb2oAOb340sz_JGAbr9T- c6NU0jN7RSbwe4LLBz6LJ87kyJBT3WRAgvqN5cyHUjht6pkMnuOWfkxVhLuzVQwpjan8AwiJgiYZX1aRGs8nkzRBFt jFtm4NAYyZw Response Summary: Please fill out the information below: Contact Person: Tyler Hodson Company Name: Kilgore Companies Mailing Address: 869 P.O. Box City: Magna Zip: 84044 Phone Number: 385-228-3653 Email: Tyler.hodson@kilgorecompanies.com Is the site located within a PM2.5 non-attainment and maintenance plan areas on cleared land grea... Yes All temporary relocation projects are required to submit a Fugitive Dust Control Plan (FDCP). Lo... 1b591ad1-28f4-4f73-99db-f72f14a7889f Briefly give directions to the site and/or physical address: From I 80 west take exit 94 south along Midvalley Highway. Turn onto Mormon Trail Road south, site is about 5 miles Proposed Relocation Information: Closest City Grantsville County Tooele UTM X Coordinates 374257.10 m E UTM Y Coordinates 374257.10 m E Approximate distance to the nearest house/business 1.3 Miles UTM X Coordinates to nearest house/business 376326.60 m E UTM Y Coordinates to nearest house/business 4484963.24 m N Does this site currently have a permit with DAQ? 6/27/25, 1:40 PM State of Utah Mail - Portable/Temporary Relocation Form https://mail.google.com/mail/u/0/?ik=bffac613d3&view=pt&search=all&permthid=thread-f:1835848344125638521%7Cmsg-f:1835877353198331603&s…1/3 Yes If yes, what is the Permit (DAQ-AN) # ? DAQE-AN140830002-09 If yes, what is the Permit Holder's Name? Kilgore Companies LLC Please provide the permit ID for the equipment? (DAQE-XXXXXXXXX-XX) DAQE-AN129310019-18 Please list all the Equipment on Site:Note: It is important to identify ALL diesel powered engine... 1 Equipment Type Generator Make/Model Caterpillar XQ60 Serial or ID# Unknown Manufactured Date 2010 Design Capacity 66 HP 2 Equipment Type Generator Make/Model Caterpillar XQ60 Serial or ID# Unknown Manufactured Date 2010 Design Capacity 66 HP 3 Equipment Type Generator Make/Model Caterpillar C27 Serial or ID# Unknown Manufactured Date 2016 Design Capacity 1105 HP 4 Equipment Type Generator Make/Model JD 6090 Serial or ID# Unknown Manufactured Date 2022 Design Capacity 225 HP 5 Equipment Type Fuel Tank Make/Model NA Serial or ID# NA Manufactured Date Unknown Design Capacity 500 gal 6 Equipment Type Fuel Tank Make/Model NA Serial or ID# NA Manufactured Date Unknown Design Capacity 500 gal 7 Equipment Type Fuel Tank Make/Model NA Serial or ID# NA Manufactured Date Unknown Design Capacity 500 gal 8 Equipment Type Fuel Tank Make/Model NA Serial or ID# NA Manufactured Date Unknown Design Capacity 500 gal Please attach a site diagram showing the equipment layout and general site dimensions for this re... https://utahgov.co1.qualtrics.com/WRQualtricsControlPanel/File.php?F=F_3NImjmVZ5cgyAkj Have any other state or local regulatory agencies issued any other "Conditional Use Permits" for... 6/27/25, 1:40 PM State of Utah Mail - Portable/Temporary Relocation Form https://mail.google.com/mail/u/0/?ik=bffac613d3&view=pt&search=all&permthid=thread-f:1835848344125638521%7Cmsg-f:1835877353198331603&s…2/3 Operational Information: (Please note: Operating time over 16 hours in a 24 hour period will re... Total Hours of operation per 24 hr period 12 Starting time of operation (am/pm) 6 am Ending time of operation (am/pm) 10 pm Maximum hourly production rate for project 450 Expected startup date 06/30/2025 Expected completion date 06/30/2026 What type of application is this for? New Application In accordance with the fee schedule approved by the Utah State Legislature, the Division of Air Q... https://utahgov.co1.qualtrics.com/WRQualtricsControlPanel/File.php?F=F_1ZzxBwqLyaoaNIR Owner/Operator Representative: https://utahgov.co1.qualtrics.com/WRQualtricsControlPanel/File.php?F=F_1HkLgYP3UKt9yTd 6/27/25, 1:40 PM State of Utah Mail - Portable/Temporary Relocation Form https://mail.google.com/mail/u/0/?ik=bffac613d3&view=pt&search=all&permthid=thread-f:1835848344125638521%7Cmsg-f:1835877353198331603&s…3/3 Susan Weisenberg <sweisenberg@utah.gov> Re: [External]question regarding the relocated generators to Grantsville 1 message Tyler Hodson <Tyler.Hodson@kilgorecompanies.com>Mon, Jun 30, 2025 at 10:43 AM To: Susan Weisenberg <sweisenberg@utah.gov> Cc: Bryan Jorgensen <Bryan.Jorgensen@kilgorecompanies.com> Good morning Susan, In regards to generators, the generators included in the TRP application will be the only ones on site. So, to answer your question, they will be replacing the 600 kW and 700 kW engines. For where the generators are being used: 1105 hp CAT C27 is going to be used to power the aggregate processing equipment The first 66 hp CAT XQ60 is going to be used at the well The second 66 hp CAT XQ60 Is going to be used for the scale 225 hp JD6090 is being used to power the freshwater pump The fuel tanks are each piped into the generators so that we can ﬁll them up less often. We are preparing to submit an NOI so that we can modify the AO. Please let me know if you need any other information. Thank you, Tyler Hodson Administrative Environmental Manager (385)228-3653 Tyler.hodson@kilgorecompanies.com From: Susan Weisenberg <sweisenberg@utah.gov> Sent: Friday, June 27, 2025 1:48 PM To: Tyler Hodson <Tyler.Hodson@kilgorecompanies.com> Subject: [External]question regarding the relocated generators to Grantsville CAUTION: This email originated from outside of the organization. Exercise caution when opening attachments or clicking links, especially from UNKNOWN senders. Hello Tyler, I've received your relocation request for the generators and fuel tanks to TM Crushing's Grantsville facility. I have a couple of questions regarding this request: * Will the proposed generators replace the existing permitted 600 kW and 700 kW engines, or will they be additional equipment? * Chad would also like to know the reason for adding these generators and tanks. Additionally, will this equipment be added to a modified Approval Order for the permanent facility? Thanks, Susan 6/30/25, 12:13 PM State of Utah Mail - Re: [External]question regarding the relocated generators to Grantsville https://mail.google.com/mail/u/0/?ik=bffac613d3&view=pt&search=all&permthid=thread-a:r6434223630307447778%7Cmsg-f:1836373059875997569…1/2 Susan Weisenberg, Environmental Scientist Office: 385-306-6512 6/30/25, 12:13 PM State of Utah Mail - Re: [External]question regarding the relocated generators to Grantsville https://mail.google.com/mail/u/0/?ik=bffac613d3&view=pt&search=all&permthid=thread-a:r6434223630307447778%7Cmsg-f:1836373059875997569…2/2 Good morning Susan, We are needing to make a modiﬁcation to our TRP at our Grantsville Pit in Tooele County, Permit #C-660-25. This will be in addition to the equipment already permitted in the original TRP. Equipment Type: Screening Plant Make/Model: Astec GT 206 Serial #: 225085 Manufactured Date: 02/2022 Design Capacity: 250 tph Power: 129 kW Engine I did notice our current AO (DAQE-AN0140830002-09) has a screening plant listed under equipment (II.A.7: One (1) 450 tph screen plant), however I would assume we need to include this screen in our TRP due to being driven by a 129 kW engine, which is not described in our AO. Please let me know if you need any other information. Thank you, Tyler Hodson Administrative Environmental Manager (385)228-3653 Tyler.hodson@kilgorecompanies.com From: Susan Weisenberg <sweisenberg@utah.gov> Sent: Tuesday, July 8, 2025 3:48 PM To: Tyler Hodson <Tyler.Hodson@kilgorecompanies.com> Subject: [External]relocation authorization for generators to Grantsville Pit CAUTION: This email originated from outside of the organization. Exercise caution when opening attachments or clicking links, especially from UNKNOWN senders. Susan Weisenberg, Environmental Scientist Office: 385-306-6512 8/4/25, 10:39 AM State of Utah Mail - Re: [External]relocation authorization for generators to Grantsville Pit https://mail.google.com/mail/u/0/?ik=bffac613d3&view=pt&search=all&permthid=thread-a:r8405614797465218110%7Cmsg-f:1839541030669193295&…2/2