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HomeMy WebLinkAboutDAQ-2024-0120781 DAQC-CI106450001-24 Site ID 10645 (B1) MEMORANDUM TO: FILE – WESTERN ROCK PRODUCTS CORPORATION – Centerfield Asphalt Plant THROUGH: Chad Gilgen, Minor Source Compliance Section Manager FROM: Daniel Riddle, Environmental Scientist DATE: December 12, 2024 SUBJECT: FULL COMPLIANCE EVALUATION, Minor, Sanpete County INSPECTION DATE: July 29, 2024 SOURCE LOCATION: 400 North 350 East Centerfield, UT 84622 SOURCE CONTACTS: Brock Rasmussen, Plant Manager 435-896-4913 brock.rasmussen@halessg.com OPERATING STATUS: The asphalt plant was operating normally at time of inspection. The stationary aggregate equipment, permitted under DAQE-278-94, dated April 11, 1994, has been permanently removed from the source location. Aggregate equipment is temporarily relocated on as-needed basis – most recently under DAQC-1368-23. PROCESS DESCRIPTION: Barber Green MD70 hot mix asphalt plant: aggregate is conveyed to the hot mix asphalt plant where it is weighed and deposited into a kiln. After drying, the aggregate is mixed with lime from a storage silo and treated with asphalt oil (in the second drum). The product is then moved by conveyor to a gravity fed hopper. Emissions from the pneumatically filled lime silo are controlled by a baghouse while the kiln emissions are controlled by a wet scrubber. APPLICABLE REGULATIONS: Approval Order (AO) dated February 20, 1986, for the Asphalt Plant Wet Scrubber AO BAQE-011-90, dated February 23, 1990, for the Asphalt Plant Silo/Baghouse ) $ ' $ ' 2 SOURCE EVALUATION: Name of Permittee: Permitted Location: Western Rock Products Corporation - Centerfield Asphalt Plant 89 West 13490 South, Suite 100 400 North 350 East Draper, UT 84020 Centerfield, UT 84622 SIC Code: 2951: (Asphalt Paving Mixtures & Blocks) Temporary Relocation/Operation, Notice of Intent DAQC-1368-23 The following equipment has been approved for operation for this temporary project: Diesel powered track mounted impact crusher This location is a permanent aggregate processing site with established hourly operation and rolling total production limits. All equipment operating at this site must be in accordance with the current AO for this facility DAQE-278-94, dated April 11, 1994. A modeling analysis submitted by Trinity Consultants on October 12, 2015, demonstrated that the ton per hour production rate can exceed the Condition 11 limit of 400 tons per hour, provided that the total production rate of all the operating equipment does not exceed 550 tons per hour, and that the total site’ s aggregate production does not exceed the 24-hour limit of 4,800 tons. The 12-month rolling total limit cannot exceed 500, 000 tons. The owner/ operator shall maintain records of the actual operation days, hours, 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. Status: Out of Compliance. Initial Method 9 observations were not performed on the temporary crusher. Monthly nozzle spray inspections were not performed on the water sprays. A Warning (DAQC-1198-24) was issued on December 9, 2024. No further action is recommended at this time. For the rolling 12-month period from July 2023 - June 2024, a total of 7,009.71 tons of aggregate were produced and 26,766.98 tons of recycled asphalt product were produced for a grand total of 33,776.69 tons crushed. An average tonnage per hour was 175.694 tons. An average tonnage per day was 1,338.35 tons. The 24-hour limit of 4,800 tons was never exceeded. Temporary equipment was removed from the site the week of March 11 – March 15, 2024. See the attached email correspondence and calculations below for more information. Crushing was covered under both TRP DAQC-1368-23 and TRP DAQC-1531-22. 3 BAQE-011-90, dated February 23, 1990, for the Asphalt Plant Silo/baghouse: Condition 1. Cox Rock Products, located at Centerfield, Sanpete County, shall install and operate the Micro-Pul Company's Model 16S-8-20 unit fabric filter lime dust control device on the lime silo at the asphalt plant located at Centerfield according to the information submitted in the notice of intent dated June 9, 1989. Status: In compliance. The fabric filter dust control device was present at the time of inspection. Condition 2. Visible emissions from any point or fugitive emission source associated with the installation or control facilities shall not exceed 10% opacity. Opacity observations of emissions from stationary sources shall be conducted in accordance with 40 CFR 60, Appendix A, Method 9. Status: In compliance. No visible emissions were observed from any point at the time of inspection. Condition 3. Temporary relocation (less than 180 days) of this portable source shall be preceded by notification in accordance with Section 3.1.9, UACR. Relocations to exceed 180 days shall be preceded with a notice of intent in accordance with Section 3.1.1, UACR. The Executive Secretary may require computer dispersion modeling using an Environmental Protection Agency approved model to verify that the source will not cause a new violation of the National Ambient Air Quality Standards. Status: Not applicable. The silo is a permanent piece of equipment. Condition 4. Eighteen months from the date of this approval order the Executive Secretary shall be notified in writing of the status of construction of this project unless the construction is complete and operation has commenced. Status: In compliance. According to previous inspection memos, the source was constructed within the appropriate time period. Condition 5. All installations and facilities authorized by this approval order shall be adequately and properly maintained. Status: In compliance. The source indicated that maintenance is performed as required. Condition 6. The Executive Secretary shall be notified in writing upon start-up of the installation, as an initial compliance inspection is required. Status: In compliance. Previous inspection memos indicate the initial compliance inspection was conducted in 1991. 4 Approval Order, dated February 20, 1986, for the Asphalt Plant Wet Scrubber: Condition 1. Cox Rock Products shall install the proposed replacement of the wet scrubber at Centerfield, Utah according to the information submitted to the Executive Secretary in the notice of intent dated November 20, 1985. Status: In compliance. The wet scrubber was observed in operation at the time of inspection. Condition 2. Visible emissions from any point or fugitive source in the installation or control facilities shall not exceed 20% opacity. Opacity observations of emissions from stationary sources shall be conducted in accordance with 40 CFR 60, Appendix A, Method 9. Opacity observations of mobile sources and intermittent sources shall use procedures similar to Method 9, but the requirement for observations to be made at 15 second intervals over a 6 minute period shall not apply. Opacity of any reading shall not exceed 20% for mobile and intermittent sources. Status: In compliance. No visible emissions were observed at any point or fugitive source at the time of inspection. See the attached VEO form for more information. Condition 3. All unpaved haul roads and other operational areas in use shall be water sprayed to minimize fugitive dust as dry conditions warrant or as determined necessary by the Executive secretary. Water treatment may be replaced by chemical dust suppression, provided a plan is approved by the executive secretary. Status: In compliance. The haul road from the main road to the asphalt plant is paved. Operating areas are watered as required. Condition 4. Water or chemical dust suppression sprays shall be installed to control dust emissions from the conveyor drop points. Status: Not applicable. According to previous inspections, water sprays have not been installed since the addition of water at the asphalt plant would negatively affect the product that the plant produces. Condition 5. Particulate emissions shall not exceed the following limitation: 0.03 gr/dscf Status: Out of Compliance. The plant was not tested after five years as required by R307-165-2(1). The source worked to schedule stack testing, but the plant has now shut down for the winter. A stack test is scheduled once operations resume for the week of May 5, 2025. No compliance action is recommended at this time. The asphalt plant was last stack tested on August 15, 2019, by American Environmental. The test results were 0.018 gr/dscf. See DAQC-1229-19 for more information. Condition 6. Compliance with condition number 5 shall be demonstrated by the test procedure indicated in 40 CFR 60 Appendix A, Method 5. Status: In compliance. Method 5 was utilized to determine particulate emissions in 2019. 5 Condition 7. Testing to demonstrate compliance with condition number one [5] shall be performed within 60 days of initial use of the plant. A stack test protocol shall be submitted or a pretest conference shall be held at least 30 days prior to planned testing. Status: In compliance. Notification was provided as required. See DAQC-1013-19 for more information. Condition 8. The exhaust stacks of the sources listed in condition number 1, shall be equipped with sample ports in compliance with 40 CFR 60 Appendix A, Method 1, and OSHA approvable access shall be provided to the test location. Status: In compliance. Sample ports were observed at the time of inspection. Condition 9. The following facility parameters shall be monitored with equipment designed and located such that an inspector can safely read the output to the degree of accuracy indicated at any time: a. Scrubbing liquid flow rate. 1 gal/min b. Scrubber fan amperes. 1 ampere c. Static inlet pressure. 1 neg. in. wg Status: In compliance. The gauges can be viewed from the asphalt plant’s control room. Condition 10. The following facility parameters shall be maintained within the indicated ranges: a. Scrubbing liquid flow rate. 100 gpm or greater b. Static inlet pressure -8 inches WG or less Status: In compliance. Both gauges can be viewed on ground level by the control room. The scrubbing liquid flow rate was 104 gpm at the time of inspection. The static inlet pressure was 8”. Condition 11. The sulfur content of any fuel oil burned shall not exceed 0.85 pounds of sulfur per million BTU heat input as determined by ASTM method D-4239-83 Status: In compliance. The asphalt plant operates solely on natural gas. Diesel fuel is used only in mobile equipment. Condition 12. All installations and facilities authorized by this approval order shall be maintained and operated in proper condition. Status: In compliance. The source appeared to be maintained and operated in proper condition at the time of inspection. 6 Condition 13. The Executive Secretary shall be notified upon start-up of the installation, as an initial compliance inspection is required. Status: In compliance. Previous inspection memos indicate the initial compliance inspection was conducted in 1991. Condition 14. Plant production shall not exceed 500,000 tons per year without prior approval of the Executive Secretary in accordance with Section 3.1 UACR. Status: In compliance. For the rolling 12-month period from July 2023 – June 2024, a total of 87,269 tons of asphalt were produced. See the attached plant operations report. Section III: APPLICABLE FEDERAL REQUIREMENTS In addition to the requirements of this AO, all applicable provisions of the following federal programs have been found to apply to this installation. This AO in no way releases the owner or operator from any liability for compliance with all other applicable federal, state, and local regulations including UAC R307. NSPS (Part 60), OOO: Standards of Performance for Nonmetallic Mineral Processing Plants Status: Out of Compliance. Initial Method 9 observations were not performed on the temporary crusher. Monthly nozzle spray inspections were not performed on the water sprays. A Warning (DAQC-1198-24) was issued on December 9, 2024. See above for more information. No further action is recommended at this time. AREA SOURCE RULES EVALUATION: The following Area Source Rules were evaluated during this inspection: Emission Standards: Sulfur Content of Fuels [R307-203] Status: In Compliance. ULSD is used as fuel at this site. See the attached delivery ticket from Pilot Thomas Logistics. Emission Standard: Fugitive Emissions and Fugitive Dust [R307-205] Status: In Compliance. No visible emissions were observed at any point or fugitive source at the time of inspection. Standards of Performance for New Stationary Sources [R307-210] Status: Compliance with this area source rule is satisfied by compliance with Federal Requirements NSPS (Part 60) Subpart OOO. See Section III above for more information. EMISSION INVENTORY: See attachments below for the Actual Emissions Inventory provided from Western Rock Products Corporation - Centerfield Asphalt Plant for the 2023 emissions reporting year. 7 PREVIOUS ENFORCEMENT ACTIONS: No enforcement action within the past 5 years. COMPLIANCE STATUS & RECOMMENDATIONS: In regards to Approval Order (AO) BAQE-011-90, dated February 23, 1990, the overall status is: In Compliance. In regards to the AO dated February 20, 1986, the overall status is: Out of Compliance. Stack testing was not performed every 5 years as required. No action is recommended at this time. See above for more details. In regards to the TRP DAQC-1386-23, the overall status is: Out of Compliance. A Warning (DAQC-1198-24) was issued on December 9, 2024. No further action is recommended at this time. HPV STATUS: Not Applicable. RECOMMENDATION FOR NEXT INSPECTION: Contact Brock Rasmussen if no one is at main office. He may be at one of his other sites that he oversees. Stack testing is scheduled for the week of May 5, 2025. Ensure that stack testing has been performed. NSR RECOMMENDATIONS: None at this time. ATTACHMENTS: VEO form, email correspondence, rolling 12, ULSD invoice, emissions report Daniel Riddle <driddle@utah.gov> Hales Centerfield Inspection 14 messages Rose, Chris (Staker & Parson Companies) <chris.rose@stakerparson.com>Mon, Sep 16, 2024 at 9:27 AM To: Daniel Riddle <driddle@utah.gov> Good morning Daniel, I just received word from our manager at our Hales Sand and Gravel Centerfield plant that you completed an inspection on site this summer and are looking for information regarding crushing production. I’ll pull some files soon demonstrating that our production never exceeded the limits of the temp relo. Regarding the Centerfield stack test, I’ve been trying to get the plant scheduled for months now. The problem is that the plant is rated to 400 TPH, but these days the plant typically runs less than half that. Since the stack test requires at least 90% max production rate, we’ve just been waiting for the next project that will require a high enough rate. We recently completed a stack test for one of our asphalt plants in Nevada, and they gave us an exemption to the 90% rule due to the plant never being able to meet that. Would the DAQ grant something similar in this situation? Thanks, Christopher Rose Environmental Specialist West Division Staker Parson A CRH COMPANY 89 West 13490 South Draper, Utah 84020 C +1 (385) 400 2119 E chris.rose@stakerparson.com Daniel Riddle <driddle@utah.gov>Mon, Sep 16, 2024 at 10:53 AM To: "Rose, Chris (Staker & Parson Companies)" <chris.rose@stakerparson.com>, Chad Gilgen <cgilgen@utah.gov>, Connor Kijowski <ckijowski@utah.gov> 12/10/24, 9:31 AM State of Utah Mail - Hales Centerfield Inspection https://mail.google.com/mail/u/0/?ik=3e54b7a6bd&view=pt&search=all&permthid=thread-f:1810366932347282332&simpl=msg-f:18103669323472823…1/8 Chris - I don't do much with stack testing. I'm cc'ing my coworker and my manager on this email as they would probably be able to provide you a better response - this is site ID 10645. [Quoted text hidden] Chad Gilgen <cgilgen@utah.gov>Thu, Sep 19, 2024 at 11:00 AM To: Daniel Riddle <driddle@utah.gov> Cc: "Rose, Chris (Staker & Parson Companies)" <chris.rose@stakerparson.com>, Connor Kijowski <ckijowski@utah.gov> Hi Chris, R307-165-4 requires stack testing to be done at no less than 90% of the maximum production rate achieved in the past three years rather than the maximum TPH rating of the plant. If the plant has been running around 200 TPH during that time, then you would go ahead and test at that rate. Then, if you want to increase your maximum production rate beyond 110% of the rate tested at, you will need to retest at that level. See attached for a copy of that rule. Let me know if you have any other questions. Thanks, Chad Chad Gilgen | Manager | Minor Source Compliance 385-306-6500 (cell) Emails to and from this email address may be considered public records and thus subject to Utah GRAMA requirements. [Quoted text hidden] R307-165.pdf 68K Daniel Riddle <driddle@utah.gov>Tue, Oct 8, 2024 at 9:36 AM To: "Rose, Chris (Staker & Parson Companies)" <chris.rose@stakerparson.com> Chris - any updates on the files for production limits of the temporary relocation? On Mon, Sep 16, 2024 at 9:27 AM Rose, Chris (Staker & Parson Companies) <chris.rose@stakerparson.com> wrote: [Quoted text hidden] Rose, Chris (Staker & Parson Companies) <chris.rose@stakerparson.com>Sat, Oct 19, 2024 at 8:55 PM To: Daniel Riddle <driddle@utah.gov> Daniel, I apologize for the delay in getting this info to you. I’ve attached the rolling 12 production for the temp crusher. It seems to have been logged strangely, so I’m still tracking down how they logged the crusher TPH and tonnage per day. I know you need hard records, but I’m pretty much sure that if they crushed 5300 tons in March, they wouldn’t have done over 4800 of that in one day. I just need to find the receipts to confirm that. Both August and September production, most likely on a different temp for a different piece of equipment, are too low to have that pose an issue. 12/10/24, 9:31 AM State of Utah Mail - Hales Centerfield Inspection https://mail.google.com/mail/u/0/?ik=3e54b7a6bd&view=pt&search=all&permthid=thread-f:1810366932347282332&simpl=msg-f:18103669323472823…2/8 Thanks, Christopher Rose Environmental Specialist West Division Staker Parson A CRH COMPANY 89 West 13490 South Draper, Utah 84020 C +1 (385) 400 2119 E chris.rose@stakerparson.com From: Daniel Riddle <driddle@utah.gov> Sent: Tuesday, October 8, 2024 9:36 AM To: Rose, Chris (Staker & Parson Companies) <chris.rose@stakerparson.com> Subject: [EXT] Re: Hales Centerfield Inspecon CAUTION: This email originated from outside of the organizaon. Do not click links or open aachments unless you are expecng this email and know the contents are safe. If you believe this email may be phishing or malicious, please use the Report Phish buon. [Quoted text hidden] ATTENTION: Ce courriel vient de l'exterieur de l'entreprise. Ne cliquez pas sur les liens, et n'ouvrez pas les pièces jointes, à moins que vous ne connaissiez l'expéditeur du courriel et savez que le contenu est sécuritaire. Si vous pensez qu’il s’agit d’un courriel d’hameçonnage ou malveillant, veuillez cliquer sur le bouton Signaler une tentave d’hameçonnage. 7.23-6.24 Centerfield aggs rolling 12 prod..jpg 19K Rose, Chris (Staker & Parson Companies) <chris.rose@stakerparson.com>Thu, Oct 24, 2024 at 9:22 AM To: Daniel Riddle <driddle@utah.gov> Daniel, 12/10/24, 9:31 AM State of Utah Mail - Hales Centerfield Inspection https://mail.google.com/mail/u/0/?ik=3e54b7a6bd&view=pt&search=all&permthid=thread-f:1810366932347282332&simpl=msg-f:18103669323472823…3/8 I wanted to follow up with the rest of the information for you. I apologize, unbeknownst to me we track certain metrics differently depending on the outcome of the material. Our actual rolling 12 production was 33,776.69. The rolling 12 production attachment I sent with my last email was the total for the saleable aggregate. The bulk of the operation was actually crushing recycled asphalt pavement (RAP) to be reused in our hot asphalt mix. Since the material isn’t sold directly, the metrics are a little harder to find. I’ve attached a KPI report for the saleable total showing production days, TPH, and max TPD. For the RAP total I made a short and sweet spreadsheet showing production days and operating hours. Unfortunately, we didn’t track RAP KPI since the material stays internal, so I calculated average TPOH and TPD based on the operation schedule. You’ll notice the operation schedule predates the approval date on the TRP, this is because the production was then approved by TRP DAQC- 1531-22. As you can see from the KPI data, we were within our bounds for rolling 12 production, TPOH, and TPD. Please let me know if you have any questions, [Quoted text hidden] 3 attachments 7.23-6.24 Centerfield aggs rolling 12 prod..jpg 19K Saleable crusher metrics.pdf 23K RAP crusher metrics.xlsx 12K Daniel Riddle <driddle@utah.gov>Tue, Oct 29, 2024 at 11:21 AM To: "Rose, Chris (Staker & Parson Companies)" <chris.rose@stakerparson.com> Thanks for sending this over Chris. I see that for the aggregate and RAP tonnage combined the total is 33,776.69 tons. One (hopefully final) question - this paragraph is included in DAQC-1368-23 (attached) 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. Can you send me the initial performance test for the impact crusher? Do you have any maintenance records (monthly nozzle inspection checks) for the spray bars on the impact crusher or conveyors? Thanks for all your help and patience with this inspection memo, Daniel [Quoted text hidden] DAQ-2024-004365.pdf 1813K Rose, Chris (Staker & Parson Companies) <chris.rose@stakerparson.com>Fri, Nov 1, 2024 at 8:16 AM 12/10/24, 9:31 AM State of Utah Mail - Hales Centerfield Inspection https://mail.google.com/mail/u/0/?ik=3e54b7a6bd&view=pt&search=all&permthid=thread-f:1810366932347282332&simpl=msg-f:18103669323472823…4/8 To: Daniel Riddle <driddle@utah.gov> Daniel, Sorry for the late response, it’s been a busy week. After talking with the site manager, it looks like there was not an IOCD performed on the temporary crusher, nor were there monthly inspections performed on the water sprays. This summer I helped Hales improve their subpart OOO recordkeeping, but during your requested timeframe these were still not completed. Let me know if you have any other questions, Christopher Rose Environmental Specialist West Division Staker Parson A CRH COMPANY 89 West 13490 South Draper, Utah 84020 C +1 (385) 400 2119 E chris.rose@stakerparson.com [Quoted text hidden] Daniel Riddle <driddle@utah.gov>Thu, Nov 7, 2024 at 10:06 AM To: "Rose, Chris (Staker & Parson Companies)" <chris.rose@stakerparson.com> Alright - In order to be compliant with OOO in the future, please ensure that this work is completed next time temporary equipment is brought to this site. [Quoted text hidden] Daniel Riddle <driddle@utah.gov>Mon, Nov 25, 2024 at 9:44 AM To: "Rose, Chris (Staker & Parson Companies)" <chris.rose@stakerparson.com>, Chad Gilgen <cgilgen@utah.gov> Chris, According to DAQC-1368-23, the temporary impact crusher should only have been operated between December 18, 2023 and 180 days later, but the aggregate records you sent me seem to show work in August and September of 2023, outside of the permitted time frame. We may need to proceed with a compliance advisory. Additionally I need to know - when was the aggregate work with this TRP ended? Has the equipment now been removed from the site? 12/10/24, 9:31 AM State of Utah Mail - Hales Centerfield Inspection https://mail.google.com/mail/u/0/?ik=3e54b7a6bd&view=pt&search=all&permthid=thread-f:1810366932347282332&simpl=msg-f:18103669323472823…5/8 Additionally, have you scheduled stack testing for this site? Per the email from my manager Chad Gilgen on September 19, 2023, you can test at a rate of at least 90% of your maximum production rate from the past three years. This is due every five years as required by UAC R307-165-2, and was last completed in August 2019. [Quoted text hidden] Rose, Chris (Staker & Parson Companies) <chris.rose@stakerparson.com>Tue, Nov 26, 2024 at 7:35 AM To: Daniel Riddle <driddle@utah.gov>, Chad Gilgen <cgilgen@utah.gov> Daniel, Thanks for your concern. Any crushing onsite in fall 2023 should have been covered by DAQC-1531-22 which expired in November 2023. The equipment on DAQC-1368-23 was removed before my first visit to the site in August 2024- I believe they were out by late spring 2024, but I’d have to get the exact dates from Hales admin. I apologize for the confusion, Christopher Rose Environmental Specialist West Division Staker Parson A CRH COMPANY 89 West 13490 South Draper, Utah 84020 C +1 (385) 400 2119 E chris.rose@stakerparson.com From: Daniel Riddle <driddle@utah.gov> Sent: Monday, November 25, 2024 9:45 AM 12/10/24, 9:31 AM State of Utah Mail - Hales Centerfield Inspection https://mail.google.com/mail/u/0/?ik=3e54b7a6bd&view=pt&search=all&permthid=thread-f:1810366932347282332&simpl=msg-f:18103669323472823…6/8 To: Rose, Chris (Staker & Parson Companies) <chris.rose@stakerparson.com>; Chad Gilgen <cgilgen@utah.gov> Subject: Re: [EXT] Re: Hales Centerfield Inspecon CAUTION: This email originated from outside of the organizaon. Do not click links or open aachments unless you are expecng this email and know the contents are safe. If you believe this email may be phishing or malicious, please use the Report Phish buon. Chris, According to DAQC-1368-23, the temporary impact crusher should only have been operated between December 18, 2023 and 180 days later, but the aggregate records you sent me seem to show work in August and September of 2023, outside of the permitted time frame. We may need to proceed with a compliance advisory. Additionally I need to know - when was the aggregate work with this TRP ended? Has the equipment now been removed from the site? [Quoted text hidden] [Quoted text hidden] [Quoted text hidden] Daniel Riddle <driddle@utah.gov>Wed, Nov 27, 2024 at 1:04 PM To: "Rose, Chris (Staker & Parson Companies)" <chris.rose@stakerparson.com> Cc: Chad Gilgen <cgilgen@utah.gov> Once you have the exact dates that the equipment was removed, can you include that in this email as well as the plan for stack testing that we discussed over the phone? [Quoted text hidden] Rose, Chris (Staker & Parson Companies) <chris.rose@stakerparson.com>Mon, Dec 2, 2024 at 8:41 AM To: Daniel Riddle <driddle@utah.gov> Cc: Chad Gilgen <cgilgen@utah.gov> Daniel, After talking with the operations team, it looks as though the crusher was taken offsite throughout the week of March 11th-15th, 2024. As for stack testing, we worked to nail down dates throughout the tail end of 2024. The plant has now shut down for the winter, they are expecting to start up around the end of April 2025. We have scheduled a stack test with Montrose Environmental for the week of May 5th, 2025. Montrose will be working on the protocol to be submitted over the winter. [Quoted text hidden] 12/10/24, 9:31 AM State of Utah Mail - Hales Centerfield Inspection https://mail.google.com/mail/u/0/?ik=3e54b7a6bd&view=pt&search=all&permthid=thread-f:1810366932347282332&simpl=msg-f:18103669323472823…7/8 Daniel Riddle <driddle@utah.gov>Mon, Dec 2, 2024 at 8:59 AM To: "Rose, Chris (Staker & Parson Companies)" <chris.rose@stakerparson.com> Cc: Chad Gilgen <cgilgen@utah.gov> Okay thanks for clarifying these dates. [Quoted text hidden] 12/10/24, 9:31 AM State of Utah Mail - Hales Centerfield Inspection https://mail.google.com/mail/u/0/?ik=3e54b7a6bd&view=pt&search=all&permthid=thread-f:1810366932347282332&simpl=msg-f:18103669323472823…8/8 Centerfield RAP crusher operation dates (DAQC-1368-23, DAQC-1531-22) Dates of usage Hours of operation Tonnage of RAP crushed 12/18/2023 7.65 Pile 1 25,051.11 12/19/2023 4.25 Pile 2 1,715.88 12/20/2023 8.65 12/21/2023 7.45 Total tonnage crushed 26,766.98 12/26/2023 10.20 12/27/2023 9.35 Average TPOD 1338.349 12/28/2023 9.90 Average TPOH 175.694 12/29/2023 4.05 1/2/2024 3.45 1/3/2024 9.10 1/4/2024 8.60 1/5/2024 9.45 1/8/2024 9.50 1/9/2024 9.45 1/10/2024 9.55 1/11/2024 9.60 1/15/2024 9.40 1/16/2024 1.55 1/17/2024 7.30 1/18/2024 3.90 3/3/2024 Saleable 3/4/2024 Saleable 3/5/2024 Saleable 3/6/2024 Saleable Average OpHr/day 7.62 Key Performance Indicator Summary - Total Production Grouped By: Plant \ Shift \ Date \ Date Report Type: (R)egular 100 - Staker & Parson Companies,101 - Evans Construction Company,102 - Oldcastle SW Group, Inc.,106 - H-K Contractors, Inc. Production Dates: 08/01/2023 - 07/31/2024 Plants: 01503 - Hales Centerfield Aggregates Shift: 1,2,3 Group by: Date Group1 ProducedUnits BestDemonstratedPerformance TotalOperationsTime (hours) ActualOperatingTime ScheduledProductionTime ScheduledDowntime(hours) Sched Maint. Time UnschedDowntime MOC Units Per OperatedHour Units Per ScheduledHour Availability OEE Scheduling Rate OOE ProductionLost to Downtime 01503 Hales Centerfield Aggregates Stage 2024-12602, 3' Borrow March 2024 03/04/2024 1,400 1,403 10.0 8.5 8.5 1.5 0.0 0.00 165 165 165 100%100%0 03/05/2024 1,350 1,377 10.0 8.5 8.5 1.5 0.0 0.00 162 159 159 100%98%0 03/06/2024 1,425 1,449 10.0 9.0 9.5 0.5 0.0 0.50 161 158 150 95%93%81 03/07/2024 1,210 1,449 10.0 9.0 9.5 0.5 0.0 0.50 161 134 127 95%79%81 March 2024 Total: 5,385 5,678 40 35 36 4.0 0.0 1.00 154 150 97% 92% 90% 83%161 Stage 2024-12602, 3' Borrow Tot 5,385 5,678 40 35.0 36.0 4.0 0.0 1.00 154 150 97% 92% 90% 83%161 01503 Hales Centerfield Aggregates Total 5,385 5,678 40 35.0 36.0 4.0 0.0 1.00 154 150 97% 92% 90% 83%161 Staker & Parson Companies Total 5,385 5,678 40 35.0 36.0 4.0 0.0 1.00 97% 92% 90% 83% Page 1 of 110/24/2024 11:08 AM Best Demonstrated Performance=([MOC] X [Operated Hours]) | Availability= ([Operated Hours] / [Scheduled Hours]) * 100 | OEE=[Quality Rate]* [Performance Rate] * [Availability Rate] | Scheduling Rate = (Scheduled Production Time) / (Total Operations Time) | OOE = (Scheduling Rate) X (OEE) Daniel Riddle <driddle@utah.gov> Centerfield Production 1 message Rasmussen, Brock (Hales Sand and Gravel) <brock.rasmussen@halessg.com>Mon, Jul 29, 2024 at 1:11 PM To: "driddle@utah.gov" <driddle@utah.gov> Brock Rasmussen Operations Manager Hales Sand and Gravel A CRH COMPANY 195 North 100 East Richfield, Utah, 84701 T +1 (435) 896 4913 M +1 (435) 773 8910 F +1 (435) 896 1782 E brock.rasmussen@halessg.com www.halessg.com 7/30/24, 9:43 AM State of Utah Mail - Centerfield Production https://mail.google.com/mail/u/0/?ik=3e54b7a6bd&view=pt&search=all&permthid=thread-f:1805941795616753071&simpl=msg-f:1805941795616753071 1/1                 !"#  $  %  &''(%)%#*  &)%&%'  $   +, $ )    - ./$ 0  # %    # %    #1            ! !  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