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Home My WebLink About1.00 General Application Materials_PartF Lot 3 and Lot 4 of Section 13 Township 7 South, Range 94 West, 6th P.M. Reference Area Looking East Reference Area Looking West Reference Area Looking North Reference Area Looking South TEP ROCKY MOUNTAIN LLC Taken By: West Water Engineering Date Taken: 07/15/2021 SOUTH LEVERICH 13-09 WELL PAD REFERENCE AREA PICTURES Notes: 1) Please see the Reference Area Map for an aerial overview of the reference area. 2) Reference Area Location: Lat: 39.43468 / Long: -107.829267 3) Please see the Vegetation Assessment conducted on July 15, 2021 for additional details on the reference area including a list of dominant vegetation within the reference area. TER Lot 3 and Lot 4 of Section 13 Township 7 South, Range 94 West, 6th P.M. TEP ROCKY MOUNTAIN LLC Taken By: West Water Engineering Date Taken: 07/15/2021 SOUTH LEVERICH 13-09 WELL PAD REFERENCE AREA PICTURES Notes: 1) Please see the Reference Area Map for an aerial overview of the reference area . 2) Reference Area Location: Lat: 39.43468 / Long: -107.829267 3) Please see the Vegetation Assessment conducted on July 15, 2021 for additional details on the reference area including a list of dominant vegetation within the reference area. Reference Area Overhead Rifle Area, Colorado, Parts of Garfield and Mesa Counties 45—Morval-Tridell complex, 6 to 25 percent slopes Map Unit Setting National map unit symbol: jnyd Elevation: 6,500 to 8,000 feet Farmland classification: Not prime farmland Map Unit Composition Morval and similar soils:55 percent Tridell and similar soils:30 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Morval Setting Landform:Alluvial fans, mesas Down-slope shape:Linear, convex Across-slope shape:Linear, convex Parent material:Reworked alluvium derived from sandstone and/or reworked alluvium derived from basalt Typical profile H1 - 0 to 5 inches: loam H2 - 5 to 17 inches: clay loam H3 - 17 to 27 inches: stony clay loam H4 - 27 to 60 inches: stony loam Properties and qualities Slope:6 to 12 percent Depth to restrictive feature:More than 80 inches Drainage class:Well drained Runoff class: High Capacity of the most limiting layer to transmit water (Ksat):Moderately high (0.20 to 0.60 in/hr) Depth to water table:More than 80 inches Frequency of flooding:None Frequency of ponding:None Calcium carbonate, maximum content:25 percent Maximum salinity:Nonsaline to very slightly saline (0.0 to 2.0 mmhos/cm) Available water supply, 0 to 60 inches: Moderate (about 8.4 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 4e Hydrologic Soil Group: C Ecological site: R048AY292CO - Deep Loam Map Unit Description: Morval-Tridell complex, 6 to 25 percent slopes---Holy Cross Area, Colorado, Parts of Eagle, Garfield, Mesa, Pitkin, and Summit Counties; and Rifle Area, Colorado, Parts of Garfield and Mesa Counties Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 6/8/2022 Page 1 of 2~ Hydric soil rating: No Description of Tridell Setting Landform:Mesas, alluvial fans Down-slope shape:Convex Across-slope shape:Convex Parent material:Reworked alluvium derived from sandstone and/or reworked alluvium derived from basalt Typical profile H1 - 0 to 10 inches: stony loam H2 - 10 to 60 inches: very stony loam Properties and qualities Slope:6 to 25 percent Depth to restrictive feature:More than 80 inches Drainage class:Well drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat):Moderately high to high (0.60 to 6.00 in/hr) Depth to water table:More than 80 inches Frequency of flooding:None Frequency of ponding:None Calcium carbonate, maximum content:30 percent Maximum salinity:Nonsaline to very slightly saline (0.0 to 2.0 mmhos/cm) Available water supply, 0 to 60 inches: Low (about 5.2 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 6e Hydrologic Soil Group: A Ecological site: R048AY287CO - Stony Foothills Hydric soil rating: No Data Source Information Soil Survey Area: Holy Cross Area, Colorado, Parts of Eagle, Garfield, Mesa, Pitkin, and Summit Counties Survey Area Data: Version 4, Sep 2, 2021 Soil Survey Area: Rifle Area, Colorado, Parts of Garfield and Mesa Counties Survey Area Data: Version 14, Sep 2, 2021 Map Unit Description: Morval-Tridell complex, 6 to 25 percent slopes---Holy Cross Area, Colorado, Parts of Eagle, Garfield, Mesa, Pitkin, and Summit Counties; and Rifle Area, Colorado, Parts of Garfield and Mesa Counties Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 6/8/2022 Page 2 of 2~ Rifle Area, Colorado, Parts of Garfield and Mesa Counties 16—Cimarron loam, 2 to 12 percent slopes Map Unit Setting National map unit symbol: jnxc Elevation: 7,500 to 9,000 feet Frost-free period: 45 to 75 days Farmland classification: Not prime farmland Map Unit Composition Cimarron and similar soils:90 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Cimarron Setting Landform:Valleys, drainageways Landform position (three-dimensional):Mountainflank Down-slope shape:Convex, concave Across-slope shape:Convex, concave Parent material:Alluvium derived from basalt Typical profile H1 - 0 to 4 inches: loam H2 - 4 to 16 inches: silty clay loam H3 - 16 to 60 inches: silty clay Properties and qualities Slope:2 to 12 percent Depth to restrictive feature:More than 80 inches Drainage class:Well drained Runoff class: Very high Capacity of the most limiting layer to transmit water (Ksat):Moderately low to moderately high (0.06 to 0.20 in/hr) Depth to water table:More than 80 inches Frequency of flooding:None Frequency of ponding:None Available water supply, 0 to 60 inches: High (about 9.9 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 6e Hydrologic Soil Group: C Ecological site: R048AY228CO - Mountain Loam Map Unit Description: Cimarron loam, 2 to 12 percent slopes---Holy Cross Area, Colorado, Parts of Eagle, Garfield, Mesa, Pitkin, and Summit Counties; and Rifle Area, Colorado, Parts of Garfield and Mesa Counties Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 6/8/2022 Page 1 of 2~ Hydric soil rating: No Data Source Information Soil Survey Area: Holy Cross Area, Colorado, Parts of Eagle, Garfield, Mesa, Pitkin, and Summit Counties Survey Area Data: Version 4, Sep 2, 2021 Soil Survey Area: Rifle Area, Colorado, Parts of Garfield and Mesa Counties Survey Area Data: Version 14, Sep 2, 2021 Map Unit Description: Cimarron loam, 2 to 12 percent slopes---Holy Cross Area, Colorado, Parts of Eagle, Garfield, Mesa, Pitkin, and Summit Counties; and Rifle Area, Colorado, Parts of Garfield and Mesa Counties Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 6/8/2022 Page 2 of 2~ Holy Cross Area, Colorado, Parts of Eagle, Garfield, Mesa, Pitkin, and Summit Counties 333B—Fughes-Godding families complex, 5 to 40 percent slopes Map Unit Setting National map unit symbol: 1jhc4 Elevation: 6,990 to 9,020 feet Mean annual precipitation: 16 to 20 inches Mean annual air temperature: 40 to 46 degrees F Frost-free period: 70 to 90 days Farmland classification: Not prime farmland Map Unit Composition Fughes family and similar soils:60 percent Godding family and similar soils:30 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Fughes Family Setting Landform:Mountain slopes Down-slope shape:Linear Across-slope shape:Concave Parent material:Colluvium and/or slope alluvium derived from sandstone and shale Typical profile Oe - 0 to 2 inches: moderately decomposed plant material A1 - 2 to 6 inches: silt loam A2 - 6 to 19 inches: silty clay loam BAt - 19 to 30 inches: silty clay loam Bt1 - 30 to 37 inches: clay Bt2 - 37 to 46 inches: clay Bt3 - 46 to 60 inches: clay Properties and qualities Slope:5 to 40 percent Depth to restrictive feature:More than 80 inches Drainage class:Well drained Capacity of the most limiting layer to transmit water (Ksat):Moderately low to moderately high (0.07 to 0.21 in/hr) Depth to water table:More than 80 inches Frequency of flooding:None Frequency of ponding:None Maximum salinity:Nonsaline (0.0 to 1.0 mmhos/cm) Available water supply, 0 to 60 inches: High (about 11.6 inches) Interpretive groups Land capability classification (irrigated): 7e Map Unit Description: Fughes-Godding families complex, 5 to 40 percent slopes---Holy Cross Area, Colorado, Parts of Eagle, Garfield, Mesa, Pitkin, and Summit Counties; and Rifle Area, Colorado, Parts of Garfield and Mesa Counties Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 6/8/2022 Page 1 of 3~ Land capability classification (nonirrigated): 7e Hydrologic Soil Group: C Ecological site: R048AY238CO - Brushy Loam Other vegetative classification: Gambel oak/mountain snowberry (QUGA/SYOR2) (S1305) Hydric soil rating: No Description of Godding Family Setting Landform:Mountain slopes Down-slope shape:Concave Across-slope shape:Linear Parent material:Colluvium and/or slope alluvium over residuum weathered from siltstone Typical profile A - 0 to 5 inches: stony silty clay loam ABt - 5 to 17 inches: cobbly silty clay Bt - 17 to 33 inches: very cobbly silty clay loam 2Btk1 - 33 to 43 inches: very cobbly clay 2Btk2 - 43 to 57 inches: clay loam 2BCk - 57 to 67 inches: very channery loam Cr - 67 to 72 inches: bedrock Properties and qualities Slope:5 to 40 percent Depth to restrictive feature:59 to 72 inches to paralithic bedrock Drainage class:Well drained Capacity of the most limiting layer to transmit water (Ksat):Low to moderately high (0.00 to 0.21 in/hr) Depth to water table:More than 80 inches Frequency of flooding:None Frequency of ponding:None Calcium carbonate, maximum content:25 percent Maximum salinity:Nonsaline (0.0 to 1.0 mmhos/cm) Available water supply, 0 to 60 inches: Moderate (about 8.1 inches) Interpretive groups Land capability classification (irrigated): 7e Land capability classification (nonirrigated): 7e Hydrologic Soil Group: C Ecological site: R048AY238CO - Brushy Loam Other vegetative classification: Gambel oak/mountain snowberry (QUGA/SYOR2) (S1305) Map Unit Description: Fughes-Godding families complex, 5 to 40 percent slopes---Holy Cross Area, Colorado, Parts of Eagle, Garfield, Mesa, Pitkin, and Summit Counties; and Rifle Area, Colorado, Parts of Garfield and Mesa Counties Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 6/8/2022 Page 2 of 3~ Hydric soil rating: No Data Source Information Soil Survey Area: Holy Cross Area, Colorado, Parts of Eagle, Garfield, Mesa, Pitkin, and Summit Counties Survey Area Data: Version 4, Sep 2, 2021 Soil Survey Area: Rifle Area, Colorado, Parts of Garfield and Mesa Counties Survey Area Data: Version 14, Sep 2, 2021 Map Unit Description: Fughes-Godding families complex, 5 to 40 percent slopes---Holy Cross Area, Colorado, Parts of Eagle, Garfield, Mesa, Pitkin, and Summit Counties; and Rifle Area, Colorado, Parts of Garfield and Mesa Counties Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 6/8/2022 Page 3 of 3~ Proposed Gas Tie-inw/Honea 19-05 Pipeline 7S 93W 7S 94W C R 3 1 7 (CR317) B E A V E R C R E E K R D (C R 3 1 7 ) SCRIBNERLN(CR317A) F S 8 2 4 345B 333C 333B 71 16 45 7145 65 71 S. LEVERICH13-09 S. LEVERICH18-13 18 19 13 24 Legend Proposed Working Pad Surface Proposed O&G Location (LOD) Proposed Gas Pipeline Proposed Water Pipeline Honea 19-05 Proposed Gas Line Honea 19-05 Proposed Water Line Existing Access Road Existing County Road Soil Survey (NRCS) Existing Pad Document Path: T:\Projects\Piceance\Rulison\South Leverich 13-09 Pad\Visit 2\S Leverich 13-09 Form 2A 304.b.(10) NRCS Soils Map.mxd TEP ROCKY MOUNTAIN, LLC Exhibit prepared by: TB Date prepared: June 8, 2022 South Leverich 13-09 Drill Pad Soils Map Lot 3 & Lot 4 of Section 13 Township 7 South, Range 94 West 6th P.M.§ 0 250 500125Feet 1 in = 250 ft D D TER Behrens and Associates, Inc. Environmental Noise Control 0 South Leverich 13-09 Pad - Form 2A Noise Mitigation and Monitoring Plan Prepared for: TEP Rocky Mountain LLC 1058 CR215 Parachute, CO 81635 Prepared by: Behrens and Associates, Inc. 9536 E. I-25 Frontage Rd. Longmont, CO 80504 Shaun Norris Staff Acoustical Engineer Jason Peetz Engineering Manager July 18, 2022 Corporate Office: Hawthorne, California Carson, California ~ Aledo, Texas ~ Napa California ~ Longmont, Colorado ~ McDonald, Pennsylvania ~ Calgary, Canada Phone 800-679-8633 ~ Fax 310-331-1538 www.environmental-noise-control.com ~ www.drillingnoisecontrol.com Table of Contents Behrens and Associates, Inc. Environmental Noise Control Table of Contents 1 Table of Contents 1. Executive Summary ................................................................................................................................... 2 2. Introduction ................................................................................................................................................ 3 3. Noise Fundamentals ................................................................................................................................... 4 4. Noise Standards .......................................................................................................................................... 5 4.1 Colorado Oil and Gas Conservation Commission (COGCC) ......................................................... 5 4.2 Summary of COGCC Maximum Permissible Noise Levels ........................................................... 7 5. Ambient Sound Level Survey Plan ............................................................................................................ 8 6. South Leverich 13-09 Pad Noise Modeling ............................................................................................... 9 6.1 Noise Modeling Methodology ......................................................................................................... 9 6.2 Noise Sensitive Receptors ............................................................................................................... 9 6.3 Unmitigated Drilling Noise Modeling Results .............................................................................. 11 7. Noise Points of Compliance and Continuous Noise Monitoring ............................................................. 14 7.1 Continuous Monitoring Procedure ................................................................................................ 14 Behrens and Associates, Inc. Environmental Noise Control Executive Summary 2 1. Executive Summary The following Form 2A Noise Mitigation and Monitoring Plan (2A NMP) was prepared by Behrens and Associates Environmental Noise Control (BAENC) for the planned operations associated with the proposed South Leverich 13-09 pad operated by TEP Rocky Mountain LLC (TEP). Predictive noise models representing the planned operations for the site were developed and assessed against the maximum permissible noise levels described in Rule 423 of the Colorado Oil and Gas Conservation Commission (COGCC) noise regulations. The following tasks were completed during development of the 2A NMP: • An ambient sound level survey will be conducted at the site approximately 60-90 days before commencement of operations • Development of a site-specific drilling noise model representing the Helmerich & Payne (H&P) 329 rig • Completions operations will be performed remotely and were not assessed as part of this pad The site-specific noise model was developed to predict the future noise impact of the proposed operations and determine what noise mitigation measures, if any, would be required to demonstrate compliance with the COGCC maximum permissible noise levels. The noise modeling results were calculated utilizing the ISO 9613-2 standard and include the effects of local topography, buildings, barriers, and ground cover. Table 1-1 below summarizes the analysis and mitigation findings in the Form 2A and presents them in the form of best management practices. Table 1-1 Site Mitigation and Best Management Practices Task Result of Analysis/ Action Ambient Survey • Developed an ambient sound level survey plan • The ambient sound level survey will be conducted at the site approximately 60-90 days before commencement of operations Drilling Noise Model • Developed noise model representing drilling to assess operational noise levels against COGCC allowable dBA and dBC noise levels • Noise mitigation not required Completions Noise Model • Completions operations will be performed remotely and were not assessed as part of this pad Land Use Evaluation • Per direction from TEP this evaluation is being conducted per a land use of agricultural Continuous Monitoring Evaluation • Noise points of compliance proposed • Continuous monitoring proposed at 3 locations Based on the noise modeling analysis, with the implementation of the best management practices outlined in Table 1-1, the drilling operations are predicted to comply with the COGCC dBA and dBC noise limits. Behrens and Associates, Inc. Environmental Noise Control Introduction 3 2. Introduction The following report provides a noise modeling assessment of the proposed activities at the South Leverich 13-09 pad operated by TEP Rocky Mountain LLC (TEP) in relation to the Colorado Oil and Gas Conservation Commission (COGCC) noise regulations. The assessment includes a modeling analysis of the Helmerich & Payne (H&P) 329 production rig. The South Leverich 13-09 pad (39.435583, - 107.829229) is located approximately 0.1 miles east of County Road 317 as shown in Figure 2-1. To assess the operational noise levels of the proposed South Leverich 13-09 pad, file noise level data previously measured and typical of the H&P 329 production rig was utilized in the noise modeling. The noise model was developed using SoundPLAN 8.2 software. The H&P 329 drilling operations are estimated to occur for 121 days. The following is provided in this report: • A review of applicable COGCC noise standards • A discussion of noise modeling methodology • An assessment of the predicted operational noise levels in relation to the COGCC noise limits Figure 2-1 South Leverich 13 -09 Pad Location South Leverich 13-09 Pad Behrens and Associates, Inc. Environmental Noise Control Noise Fundamentals 4 3. Noise Fundamentals Sound is most commonly experienced by people as pressure waves passing through air. These rapid fluctuations in air pressure are processed by the human auditory system to produce the sensation of sound. The rate at which sound pressure changes occur is called the frequency. Frequency is usually measured as the number of oscillations per second or Hertz (Hz). Frequencies that can be heard by a healthy human ear range from approximately 20 Hz to 20,000 Hz. Toward the lower end of this range are low-pitched sounds, including those that might be described as a “rumble” or “boom”. At the higher end of the range are high- pitched sounds that might be described as a “screech” or “hiss”. Environmental noise generally derives, in part, from a combination of distant noise sources. Such sources may include common experiences such as distant traffic, wind in trees, and distant industrial or farming activities. These distant sources create a low-level "background noise" in which no particular individual source is identifiable. Background noise is often relatively constant from moment to moment but varies slowly from hour to hour as natural forces change or as human activity follows its daily cycle. Superimposed on this low-level, slowly varying background noise is a succession of identifiable noisy events of relatively brief duration. These events may include the passing of single-vehicles, aircraft flyovers, screeching of brakes, and other short-term events. The presence of these short-term events causes the noise level to fluctuate. Typical indoor and outdoor A-weighted sound levels are shown in Figure 3-1. Figure 3-1 Typical Indoor and Outdoor A-Weighted Sound Levels COMMO OUTDOOR NOISE LEVEL SOUND LEVELS dB (A) 6 •747-200 Tak off ii 1 ml G ~wn~atJft. 150 ft. 2ml. S-757 1'. ff at 2 ml. Qvl I Urban NI htt,me Ou Suburban Nightt1me Quiet Rural N"Ohtt,me ----~110 Rock Band 9 ° Food len~ •t 3 ft. 80 Garbitjl8 015POll,ll,I •I :i ft . Shouting at :s ft. 70 Vacuum Clffn• iJI 10 ft Norm SpMch 60 111311. so 40 30 Li Bedroom Conc,enH --1111--20 --10 roi11k-;, I & R1>eordlng 1udlo __ _.._ __ Q T otoof ng Behrens and Associates, Inc. Environmental Noise Control Noise Standards 5 4. Noise Standards The pad is located in the state of Colorado and is subject to the regulations of the Colorado Oil and Gas Conservation Commission (COGCC). The COGCC publishes rules regulating oil and gas operations with rules relating to noise found in Rule 423. 4.1 Colorado Oil and Gas Conservation Commission (COGCC) The COGCC Code lists noise limits for oil and gas operations. “All Oil and Gas Operations will comply with the following maximum permissible noise levels in Table 423-1 unless otherwise required by Rule 423.” The noise limits are provided in Table 4-1. Table 4-1 COGCC Table 423-1 – Maximum Permissible Noise Levels Zone 7:00 am to next 7:00 pm 7:00 pm to next 7:00 am Residential / Rural / State Parks & State Wildlife Areas 55 dBA 50 dBA Commercial / Agricultural 60 dBA 55 dBA Light Industrial 70 dBA 65 dBA Industrial 80 dBA 75 dBA All Zones 60 dBC 60 dBC Exceptions to the noise limits above are given in Rule 423.b(2): (2) Unless otherwise required by Rule 423, drilling or completion operations, including Flowback: A. In Residential/Rural or Commercial/Agricultural, maximum permissible noise levels will be 60 db(A) in the hours between 7:00 p.m. to 7:00 a.m. and 65 db(A) in the hours between 7:00 a.m. to 7:00 p.m.; and B. In all zones maximum permissible noise levels will be 65 db(C) in the hours between 7:00 p.m. to 7:00 a.m. and 65 db(C) in the hours between 7:00 a.m. to 7:00 p.m. Behrens and Associates, Inc. Environmental Noise Control Noise Standards 6 To demonstrate compliance with the sound level limits, Rule 423.c.(2).A states: A. In response to a complaint or at the Director’s request, Operators will measure sound levels at 25 feet from the complainant’s occupied structure towards the noise source for low frequency (dbC) indicated issues. For high frequency (dbA) measurement will be at the nearest point of compliance. For equipment installed at Oil and Gas Locations subject to a Form 2A approved prior to January 15, 2021, after the Commencement of Production Operations, no single piece of equipment will exceed the maximum permissible noise levels listed in Table 423-1 as measured at a point 350 feet from the equipment generating the noise in the direction from which the complaint was received. Defining noise points of compliance, Rule 423.a.(5) states: (5) For proposed Oil and Gas Locations with a Working Pad Surface within 2,000 feet of one or more Residential Building Units, at least one, and no more than six noise points of compliance where monitors will be located. Operators will identify noise points of compliance using the following criteria: A. Provide one noise point of compliance in each direction in which a Residential Building Unit is located within 2,000 feet of the proposed Working Pad Surface. B. Noise points of compliance will be located at least 350 feet from the Working Pad Surface, and no less than 25 feet from the exterior wall of the Residential Building Unit that is closest to the Working Pad Surface. If a Surface Owner or tenant refuses to provide the Operator with access to install a noise monitor, then the noise point of compliance will be located at eit her the next- closest Residential Building Unit or an alternative location approximately the same distance and direction from the Working Pad Surface. With regards to adjusting maximum permissible noise levels based on measured ambient sound levels, Rule 423.d. states: d. Cumulative Noise. All noise measurements will be cumulative. (1) Noise measurements taken at noise points of compliance designated pursuant to Rule 423.a.(5) will take into account ambient noise, rather than solely the incremental increase of noise from the facility targeted for measurement. (2) At new or substantially modified Oil and Gas Locations where ambient noise levels at noise points of compliance designated pursuant to Rule 423.a.(5) already exceed the noise thresholds identified in Table 423-1, then Operators will be considered in compliance with Rule 423, unless at any time their individual noise contribution, measured pursuant to Rule 423.c, increases noise above ambient levels by greater than 5 dBC and 5 dBA between 7:00 p.m. and 7:00 a.m. or 7 dBC and 7 dBA between 7:00 a.m. and 7:00 p.m. This Rule 423.d.(2) does not allow Operators to increase noise above the maximum cumulative noise thresholds specified in Table 423-2 after the Commencement of Production Operations. Behrens and Associates, Inc. Environmental Noise Control Noise Standards 7 (3) After the Commencement of Production Operations, if ambient noise levels already exceed the maximum permissible noise thresholds identified in Table 423-1, under no circumstances will new Oil and Gas Operations or a significant modification to an existing Oil and Gas Operations raise cumulative ambient noise above: Table 423-2 – Maximum Cumulative Noise Levels LAND USE 7:00 am to next 7:00 pm 7:00 pm to next 7:00 am Residential /Rural/State Parks/State Wildlife Areas 65 db(A) 60 db(A) Commercial/Agricultural 70 db(A) 65 db(A) Light Industrial 80 db(A) 75 db(A) Industrial 90 db(A) 85 db(A) All Zones 75 db(C) 70 db(C) 4.2 Summary of COGCC Maximum Permissible Noise Levels Notwithstanding any influence or adjustments due to ambient noise or maximum cumulative noise levels of Rule 423 – Table 423-2, based on COGCC Rule 423, the allowable noise level limits applicable to the site are as follows: Table 4-2 Unadjusted Maximum Permissible Noise Levels Operation Applicable Zoning Noise Limits (dBA) Noise Limits (dBC) Drilling Agricultural/Commercial 65 day / 60 night 65 day and night Completions Agricultural/Commercial 65 day / 60 night 65 day and night Production Agricultural/Commercial 60 day / 55 night 60 day and night Behrens and Associates, Inc. Environmental Noise Control Ambient Sound Level Survey Plan 8 5. Ambient Sound Level Survey Plan An ambient sound level survey will be conducted at the site approximately 60-90 days before commencement of operations. The ambient sound level survey will be conducted using a sound level meter that conforms to ANSI S1.4 Specification for Sound Level Meters. A baseline ambient noise survey will be performed over a 72-hour period; using 1-hour Leq averages and including at least 24 hours between 10:00 p.m. on a Friday and 4:00 a.m. on a Monday. A single cumulative daytime ambient noise level and a single cumulative nighttime ambient noise level will be established by taking the logarithmic average of all daytime or nighttime 1-hour Leq values measured and in accordance with the sound level data collection requirements pursuant to Rule 423. Per COGCC guidelines, the measurements must be conducted at an approximate height of 5 feet and exclude periods from the calculation when winds exceeded 5 mph. The location of the proposed ambient sound level survey can be seen in Figure 5-1. Figure 5-1 Ambient Monitoring Location The proposed locations are contingent upon landowner approval. Alternate locations may be utilized if access or approval is not granted. 2,000 ft South Leverich 13-09 Pad Survey Location 1 Survey Location 2 Survey Location 3 Behrens and Associates, Inc. Environmental Noise Control South Leverich 13-09 Pad Noise Modeling 9 6. South Leverich 13-09 Pad Noise Modeling 6.1 Noise Modeling Methodology The noise modeling was completed with use of three-dimensional computer noise modeling software. All models in this report were developed with SoundPLAN 8.2 software using the ISO 9613-2 standard. Noise levels are predicted based on the locations, noise levels and frequency spectra of the noise sources, and the geometry and reflective properties of the local terrain, buildings and barriers. To ensure a conservative assessment and compliance with ISO 9613-2 standards, light to moderate winds are assumed to be blowing from the source to receptor. The predicted noise levels represent only the contribution of the drilling operations and do not include ambient noise or noise from other facilities. Actual field sound level measurements may vary from the modeled noise levels due to other noise sources such as traffic, other facilities, other human activity, or environmental factors. Sound level data utilized in the surface drilling model was based on file data of the H&P 329 rig collected by BAENC. The V door faces north with the backyard equipment positioned to the south. Rig placement and orientation was coordinated with TEP and oriented to minimize noise impact when possible. The predicted modeling results are dependent on equipment and mitigation orientation as indicated. 6.2 Noise Sensitive Receptors The noise sensitive receptors utilized in the drilling modeling were positioned to be consistent with the requirements of the COGCC noise standards. The requirements state that dBA noise levels shall comply with the applicable noise limits as measured at 350 feet from the working pad surface and no less than 25 feet from the exterior wall of the Residential Building Unit that is within 2,000 ft. and closest to the drill pad surface. Receptor points used in the modeling can represent multiple closely located RBU’s. Figure 6-1 shows the dBA and dBC noise sensitive receptor locations. Behrens and Associates, Inc. Environmental Noise Control South Leverich 13-09 Pad Noise Modeling 10 Figure 6-1 Noise Sensitive Receptor Locations South Leverich 13-09 Pad dBC Compliance Assessment Locations dBA Compliance Assessment Locations Receptor B Receptor A Receptor 2 Receptor 1 Receptor 3 Receptor C Behrens and Associates, Inc. Environmental Noise Control South Leverich 13-09 Pad Noise Modeling 11 6.3 Unmitigated Drilling Noise Modeling Results The unmitigated modeling is based off of current drilling plans and does not include sound walls or other third-party acoustical mitigation measures. The results of the unmitigated drilling noise modeling are presented in Table 6-1 and Table 6-2. The locations in the tables correspond to the locations identified in Figure 6-1. The predicted noise levels represent only the contribution of the project operations and do not include ambient noise or noise from other facilities. Figure 6-2 and Figure 6-3 shows the Unmitigated H&P 329 Noise Contour Map in dBA and dBC respectively. The noise contours are provided in 5 dB increments with the color scale indicating the sound level of each contour. Table 6-1 Unmitigated Noise Modeling Results (dBA) Receptor Location Description H&P 329 Location A 350 Feet Northeast 56 Location B 350 Feet Southwest 44 Location C 350 Feet Northwest 40 COGCC Noise Limit 350 ft. from the working pad surface 65 Day / 60 Night Table 6-2 Unmitigated Noise Modeling Results (dBC) Receptor Location Description H&P 329 Location 1 1,600 feet Northeast of South Leverich 13-09 Pad 62 Location 2 1,500 feet Southwest of South Leverich 13-09 Pad 59 Location 3 1,200 feet Northwest of South Leverich 13-09 Pad 64 COGCC Noise Limit 25 ft. from the exterior wall of a residence or occupied structure towards the noise source 65 The results of the unmitigated noise modeling indicate that the drilling operations will comply with the COGCC A-weighted and C-weighted noise level limit. Behrens and Associates, Inc. Environmental Noise Control South Leverich 13-09 Pad Noise Modeling 12 Figure 6-2 H&P 329 Unmitigated Noise Contour Map (dBA) Noise Level , dBA = 30 .0 = 35.0 = 40 .0 = 45 .0 = 50.0 = 55 .0 = 60 .0 = 65 .0 = 70.0 = 75 .0 = 80.0 = 85.0 = 90 .0 0 650 1300 1950 ----=====---feet Behrens and Associates, Inc. Environmental Noise Control South Leverich 13-09 Pad Noise Modeling 13 Figure 6-3 H&P 329 Unmitigated Noise Contour Map (dBC) Noise Level , dBC = 30 .0 = 35.0 = 40 .0 = 45 .0 = 50.0 = 55 .0 = 60 .0 = 65 .0 = 70.0 = 75 .0 = 80.0 = 85.0 = 90 .0 0 650 1300 1950 •--======---feet Behrens and Associates, Inc. Environmental Noise Control Noise Points of Compliance and Continuous Noise Monitoring 14 7. Noise Points of Compliance and Continuous Noise Monitoring 7.1 Continuous Monitoring Procedure The following continuous monitoring procedures are proposed to ensure compliance with the monitoring procedures outlined in COGCC Rule 423.c.(2). To demonstrate compliance with COGCC noise regulations, pre-production activities and ongoing operations lasting longer than 24 consecutive hours will require continuous monitoring measurements from each noise point of compliance designated. According to Section 423. Noise (c), to demonstrate compliance with Tables 423-1 and 423-2 Operators will measure sound levels according to the following standards: (1) During pre-production activities and ongoing operations lasting longer than 24 consecutive hours such as drilling, completion, recompletion, Stimulation, and Well maintenance, in areas zoned residential or within 2,000 feet of a Building Unit, Operators will take continuous sound measurements from each noise point of compliance designated pursuant to Rule 423.a.(5). Figure 7-1 shows an aerial view of the proposed pad with an approximate 2,000 ft. radius. There are four Residential Building Units (RBU) within the 2,000 ft. radius, two of which are adjacent to each other on TEP property. Three noise points of compliance were selected to represent RBU’s in multiple directions from the pad. Proposed noise points of compliance are detailed in Table 7-1. Table 7-1 Proposed Continuous Monitoring Locations Location Description Notes Noise Point of Compliance 1 25 feet from exterior of RBU • Located on private land, measurement location can be adjusted if access is not granted Noise Point of Compliance 2 25 feet from exterior of RBU • Located on private land, measurement location can be adjusted if access is not granted Noise Point of Compliance 3 25 feet from exterior of RBU • Located on private land, measurement location can be adjusted if access is not granted Behrens and Associates, Inc. Environmental Noise Control Noise Points of Compliance and Continuous Noise Monitoring 15 Figure 7-1 Proposed Continuous Monitoring Locations South Leverich 13-09 Pad 2,000 ft Noise Point of Compliance 1 Noise Point of Compliance 2 Noise Point of Compliance 3 Additional Noise Mitigation BMP As recommended by Garfield County, TEP will adopt an additional BMP stating our willingness to consider additional mitigation measures as a result of complaints or noncompliance. As described in the Noise Mitigation Plan, TEP will measure ambient sound levels and will take continuous sound measurements from each noise point of compliance during pre-production activities. In the event of noncompliance or complaints from surrounding surface and building owners, TEP will implement additional mitigation measures to reduce noise impacts. Noise BMPs: •Any operations involving the use of a drilling rig, workover rig, or fracturing and any equipment used in the drilling, completion or production of a well are subject to and will comply with the Agricultural maximum permissible noise levels in Rule 423.a.(2).A. of 65 db(A) in the hours between 7:00 a.m. to 7:00 p.m. and 60 db(A) in the hours between 7:00 p.m. to 7:00 a.m.; and •If a noise complaint is made to either TEP directly, the COGCC, or the local government, and TEP is notified of the complaint, noise levels will be measured within 48 hours of receipt of the complaint; TEP will contact the concerned party (if contact information is available) to discuss the complaint and the results of the noise measurements. Lighting Mitigation Plan – 304.c.(3) South Leverich 13-09 Oil and Gas Location Loc ID #335045 July 2022 Table of Contents TER Page 2 of 14 INTRODUCTION TEP Rocky Mountain LLC (“TEP”) has developed the following lighting mitigation plan, which describes the methods TEP will use to minimize potential light intensity outside the boundary of the oil and gas location and ensure compliance with standards outlined under Rule 424. This Lighting Mitigation Plan is being submitted as required by Colorado Oil and Gas Conservation Commission’s (“COGCC”) Rule 304.c.(3) and based on the requirements outlined in COGCC Rule 424. WELL SITE LOCATION AND ACCESS The existing South Leverich 13-09 Pad (Location ID: 335045) is located in Lot 3 & 4 of Section 13, Township 7 South, Range 94 West, 6th P.M., within Garfield County, Colorado (Vicinity Map – Appendix A; Latitude: 39.43590; Longitude: -107.829100). The oil and gas location is located on private property (Parcel #240318400014) owned by Gordman Leverich, LLP. The land on which the pad is located is classified as non-crop land, rangeland, and recreation, and is primarily used for grazing cattle. The South Leverich 13-09 Oil and Gas Development Plan (“OGDP”) involves reconstruction of the South Leverich 13-09 pad, construction of a new pipeline corridor for natural gas transportation, and utilization of other existing facilities to support well completion and production operations. The existing South Leverich 13-09 pad would be reconstructed to a 6.43-acre footprint to support development of the twenty- one (21) proposed natural gas wells. The constructed pad would have an estimated pad elevation of 8,007.1 feet. The long-term disturbance of the South Leverich 13-09 pad following interim reclamation would be approximately 1.74-acres. The South Leverich 13-09 pad is currently accessed via Garfield County Road 317 and an existing lease road. Approximately 24,135 feet, or 4.57 miles, of Garfield County Road 317 is an improved gravel road which is maintained by Garfield County Road and Bridge. The existing lease road from County Road 317 to the South Leverich 13-09 Pad is also an improved gravel road and is approximately 3,432 feet, or 0.65 miles, in length. The existing lease road is currently utilized to access other existing Oil and Gas Locations within the Beaver Creek Area. Please see the Access Road Map attached to the Form 2A for a depiction of the existing access route. REGULATORY REQUIREMENTS Rule 304.c.(3): A light mitigation plan consistent with the requirements of Rule 424.a. Rule 424.a: Operators will submit a light mitigation plan as an attachment to their Form 2As, pursuant to Rule 304.c.(3): An Operator may submit substantially equivalent information or plans developed through a Local Government land use process or federal process in lieu of the information required by this Rule 424.a unless the Director or Commission determines that the information or plan developed through the Local Government land use process or federal process is not equivalent. TEP is requesting approval of the South Leverich 13-09 OGDP, which includes an Oil and Gas Location Assessment (“Form 2A”) permit for the development of twenty-one (21) proposed natural gas wells from the existing South Leverich 13-09 pad. The South Leverich 13-09 Lighting Mitigation Plan is being submitted with the South Leverich 13-09 Form 2A as required by Rule 304.c.(3). Garfield County has amended the Land Use and Development Code (“LUDC”) to incorporate COGCC’s Rule 424 lighting standards in the adopted Oil and Gas Code. Garfield County’s current zoning designation for the subject parcel (Parcel # 240318400014) is Rural (agricultural resource lands). Garfield County’s definition of “Rural” includes “agricultural resource lands, agricultural production areas, and Page 3 of 14 natural resource areas”. Therefore, the land use designation listed under Rule 424.d.(2) utilized in this Lighting Mitigation Plan is Agricultural. STATEMENT OF EXPERTISE – RULE 424.a.(1) Rule 424.a.(1): All light mitigation plans will be signed by a person with relevant expertise in light mitigation techniques and design. The Drilling Phase Lighting Site Plan and Diagram (Appendix B) was developed and calculated by Wanda Graham, an electrical designer with Bighorn Consulting Engineer, Inc. Wanda has thirty-one years of experience in the design of electrical and lighting systems with an emphasis on lighting layout and design. The South Leverich 13-09 Lighting Mitigation Plan was developed in coordination with TEP's Drilling Manager and the Planning Manager. During the COGCC training on April 6th, 2021, COGCC stated that the lighting specialist needed to have lighting experience in the industry but not a specific certification. LIGHTING MITIGATION PLAN COMPONENTS – RULE 424.a.(2) Rule 424.a.(2): All light mitigation plans will address: TEP anticipated lighting will only be utilized during drilling and completion operations. During these operational phases, personnel will be continuously present onsite. TEP estimates that drilling operations will take approximately 121 days and completion operations will take approximately 210 days. TEP will be conducting Simultaneous Operations (“SIMOPS”) on the South Leverich 13-09 pad, which will result in approximately 61 days of SIMOPS, where drilling and completion operations will be occurring at the same time on the oil and gas location. These activities will result in a total of 270 days of active operations during which nighttime lighting will be utilized. TEP will minimize on-site lighting if personnel are not onsite. Rule 424.a.(2).A: A pre-production facility lighting plan demonstrating one or more proposed methods of ensuring compliance with Rule 424.c. Pre-production activities will consist of initial grading, drill rig mobilization, drilling, completions, and flowback operations. Initial grading and drill rig mobilization will be completed during daylight hours. Pre-production lighting facilities are detailed in Pre-Production Facility Lighting section below. 1. Rule 424.a.(2).A.i: That provides adequate lighting to ensure safety during active operations involving personnel Sufficient lighting will be utilized during pre-production activities to ensure the safety of all personnel on-site. 2. Rule 424.a.(2).A.ii: The proposed anticipated location, mounting, height, and orientation of all outdoor lighting fixtures on the site during pre-production activities. Drilling activities will last for approximately 121 days. Helmerich and Payne, Inc. (H&P) provided lighting details for the drill rig that will operate at the South Leverich 13-09 well site. Lighting utilized during drilling activities is stationed on the drill rig; therefore, the lighting is centered within the site perimeter and lighting is cast outward and downward. For safety reasons, lighting may extend slightly beyond the site perimeter. Lighting will be directed downward and inward to avoid excess lighting beyond the location’s perimeter. The Drill Phase Lighting Site Page 4 of 14 Plan and Diagram (Appendix B) was developed using photometric calculations to represent site- specific illumination levels for the subject site. Specifications on drill rig lighting fixtures detailing anticipated location on the drill rig, height, light angle, and type of light fixtures are also provided in the Drill Phase Lighting Site Plan and Diagram (Appendix B). Well completion operations associated with the proposed wells on the South Leverich 13-09 pad will be conducted remotely from the existing Youberg RU 44-7 pad to minimize operations on the subject site. However, flowback operations will be conducted on the South Leverich 13-09 pad. During completions and flowback activities (approximately 210 days), the subject site will be lit to provide adequate lighting for personnel. All lighting for completions and flowback operations will be casted downward and inward towards the center of the site. Lighting will not extend past the perimeter of the site. Portable lighting equipment will be utilized during this phase. The Completions and Flowback Phase Lighting Figure (Appendix C), depicts the location of lighting equipment within the site perimeter, and lighting equipment specifications associated with completions and flowback operations on the South Leverich 13-09 pad. 3. Rule 424.a.(2).A.iii: Nothing in this Rule 424.a.(2).A prevents an Operator from using ad hoc temporary portable lighting when necessary for safety reasons during pre-production activities, provided that the Operator otherwise complies with the standards in Rules 424.b–f. In the event that temporary lighting is required, lighting will comply with standards stated in this Lighting Mitigation Plan and COGCC Rules 424.b. – 424.f when allowable. In the event of an emergency, TEP will place a priority on personnel safety and will adhere to Rule 424.a.(2).A.i. to ensure safety of those accessing and present at the site. Rule 424.a.(2).B: A Production Facility lighting plan demonstrating one or more proposed methods of ensuring compliance with Rules 424.d, [Production Phase Facility Lighting When Personnel Are On- site], & e [Production Phase Facility Lighting When Personnel Are Not On-site]. TEP is not proposing to have permanent on-site lighting during the production phase of operations on the South Leverich 13-09 pad. Production activities will typically be conducted during daylight hours and do not require lighting. In the event of an emergency that requires nighttime operations, TEP will utilize temporary lighting fixtures, placing a priority on personnel safety, and will adhere to Rule 424.a.(2).A.i. to ensure safety of those accessing and present at the site. Rule 424.a.(2).B is not applicable to the proposed activities at the subject site. LIGHTING STANDARDS – RULE 424.b Rule 424.b.(1): Operators will direct site lighting downward and inward, such that no light shines above a horizontal plane passing through the center point light source. During drilling and completion operations, lighting will be directed downward and inward. Lighting during drilling operations will be casted outwards only on necessary points for safety considerations. Lighting will be directed downward and inward to avoid excess lighting beyond perimeter of the oil and gas location. Drill rig lighting will illuminate the entire drill rig, which is required for a safe working environment and adherence to COGCC Rule 424.a.(2).A.i. Page 5 of 14 Rule 424.b.(2): Operators will use appropriate technology within fixtures that obscures, blocks, or diffuses the light to reduce light intensity outside the boundaries of the Oil and Gas Facility. TEP will utilize appropriate equipment to reduce light intensity outside the perimeter of the South Leverich 13-09 oil and gas location. For drilling activities, the lighting may cast slightly along and outside the perimeter of the proposed well site for safety. Since the site will be graded along the perimeter it is vital for personnel accessing the site during drilling operations to see the edge of the pad. The extent of lighting outside the perimeter of the well site is displayed in Appendix B. Light intensity outside the site is minimal and reduces within a short distance from the well site perimeter. Rule 424.b.(3): Operators will use Best Management Practices to minimize light pollution and obtrusive lighting. TEP will utilize low-glare or no-glare lighting and will conduct lighting inspections to confirm lighting fixtures are orientated correctly. Lighting will be required for drilling, completions, and flowback activities. Production activities are conducted during daylight hours and will not require lighting. PRE-PRODUCTION FACILITY LIGHTING – RULE 424.c TEP will be conducting 24-hour operations on the South Leverich 13-09 pad during drilling and completion operations and will require onsite lighting during these pre-production activities. Rule 424.c.(1): At all Oil and Gas Facilities with active operations involving personnel, Operators will provide sufficient on-site lighting to ensure the safety of all persons on or near the site. During pre-production operations on the South Leverich 13-09 pad, sufficient lighting will be utilized to ensure the safety of all personnel. Rule 424.c.(2): If the facility has a noise barrier, Operators will locate the facility lighting beneath the noise barrier, except for drilling rig lights, which will be shielded and pursuant to Federal Aviation Administration permit requirements if applicable. A noise barrier is not proposed for the subject site. Rule 424.c.(3): Prior to the Commencement of Production Operations, Operators will take all necessary and reasonable precautions to ensure that lighting from Oil and Gas Facilities does not unnecessarily impact the health, safety, and welfare of any of the following: 1. Rule 424.c.(3).A: Persons occupying Building Units within 2,000 feet of the Oil and Gas Facility. There are four (4) building units within 2,000 feet of the working pad surface of the oil and gas location, all of which are considered residential building units. One (1) residential building unit is occupied full time by the building unit owner, one (1) residential building unit is owned by the surface owner of the South Leverich 13-09 pad and is unoccupied, and two (2) residential building units are owned by TEP and are unoccupied. The nearest residential building unit is 1,160 feet west of the oil and gas location. Due to the topography and tree coverage of the area, there is anticipated to be minimal or no impacts to residences within 2,000 feet of the South Leverich 13-09 pad. Please see the Cultural Distance Map and / or the Alternative Location Analysis attached to the Form 2A for additional detail on the location and distance from existing residential building units within 2,000 feet of the oil and gas location. Page 6 of 14 2. Rule 424.c.(3).B: Motorists on roads within 2,000 feet of the Oil and Gas Facility The nearest Public Road is Beaver Creek Road (Garfield County Road 317) approximately 731 feet west of the oil and gas location. The existing access road from Beaver Creek Road is approximately 0.65-miles from the oil and gas location. Approximately 4,338 feet or 0.82-miles of Beaver Creek Road is within 2,000 feet of the oil and gas location, of which approximately two thirds will be visible from the oil and gas location. Onsite lighting will be directed downward and inward. TEP will utilize low-glare or no-glare lighting and will conduct lighting inspections to confirm lighting fixtures are orientated correctly. There is anticipated to be minimal or no impacts to motorists on roads within 2,000 feet of the oil and gas location. The Access Road Map is provided in Appendix D. 3. Rule 424.c.(3).C: Wildlife occupying any High Priority Habitat within 2,000 feet of the Oil and Gas Facility. The South Leverich 13-09 is not located within a High Priority Habitat (HPH); however, a High Priority Habitat is identified within 2,000 feet of the site. Aquatic Native Species Conservation Waters and Cutthroat Trout Designated Crucial Habitat are the only HPH boundaries located within 2,000 feet of the site. No lighting impacts to wildlife occupying HPH is expected. The Wildlife Habitat Drawing is provided in Appendix E. PRODUCTION PHASE LIGHTING WHEN PERSONNEL ARE ON-SITE – RULE 424.d TEP does not anticipate the use of lighting during the Production Phase at the South Leverich 13-09 pad. Typically, TEP does not utilize lighting during production activities. Production activities are typically conducted during daylight hours and will not require lighting. In the event of an emergency or foreseen event that may require lighting, TEP will adhere to lighting standards stated in Rule 424.d. Rule 424.d.(1): After the Commencement of Production Operations, at all Oil and Gas Facilities with active operations involving personnel, Operators will provide sufficient on-site lighting to ensure the safety of all persons on or near the site. Sufficient lighting will be utilized to ensure the safety of all personnel at the South Leverich 13-09 pad, when necessary, during production operations. Production activities are conducted during daylight hours and will not require lighting. In the event of an emergency or foreseen event that may require lighting, TEP will adhere to lighting standards stated in Rule 424.d. Rule 424.d.(2): After the Commencement of Production Operations, when active operations involving personnel are occurring, Oil and Gas Facilities will not exceed the following maximum permissible light levels. Production activities are conducted during daylight hours and will not require lighting. In the event of an emergency or unforeseen event, TEP will adhere to lighting standards stated in Rule 424.d. TEP will not exceed the Commercial/Agricultural standard of 2.5 Lumens per square foot of Working Pad Surface during production operations if lighting is utilized. Rule 424.d.(3): The basis for determining land use designation pursuant to be Rule 424.d.(2) will be the Relevant Local Government’s land use or zoning designation. The Director may consult with a Relevant Page 7 of 14 or Proximate Local Government to identify the type of land use of the Oil and Gas Location and its surrounding area, taking into consideration any applicable zoning or other local land use designation. The South Leverich13-09 pad is located in a remote area of Garfield County, Colorado. Garfield County is the Relevant Local Government with land use authority for the South Leverich 13-09 pad. There are no Proximal Local Governments within the vicinity of this oil and gas location. Garfield County’s current zoning designation for the subject parcel (Parcel # 240318400014) is Rural (agricultural resource lands). Garfield County’s definition of “Rural” includes “agricultural resource lands, agricultural production areas, and natural resource areas”. Therefore, the land use designation utilized in this Lighting Mitigation Plan is Agricultural. The current land use for this property is considered rangeland / recreational. The Garfield County Zoning Map (Appendix F) depicts the zoning and property boundaries for the subject parcel. PRODUCTION PHASE LIGHTING WHEN PERSONNEL ARE NOT ON-SITE – RULE 424.e Rule 424.e: After the Commencement of Production Operations, Operators will minimize continuous on- site lighting when personnel are not present. Continuous on-site lighting will only be utilized during drilling and completion activities. The stated activities will result in approximately 270 days of continuous on-site lighting. During these operational phases, personnel will be present onsite 24-hours per day. TEP will minimize continuous on-site lighting if personnel are not onsite. The production phase will not require lighting on a regular basis. Only in the event of an emergency temporary lighting may be utilized during the production phase. CUMULATIVE IMPACTS – RULE 424.f Rule 424.f: Operators will develop site lighting to reduce cumulative nighttime light intensity from all Oil and Gas Facilities to 4 lux at any Residential Building Unit or High Occupancy Building Unit within 1 mile of any Oil and Gas Facility, measured at 5.5 feet above grade in a direct line of sight to the brightest light fixture onsite. There are eight (8) Residential Building Units within 1-mile of the Oil and Gas Location, four (4) of which are occupied seasonally or full time by the owner. The remaining Residential Building Units are either not occupied or are only used recreationally. Of the eight (8) Residential Building Units only two (2) are visible from the South Leverich 13-09 pad. Impacts from cumulative lighting are not anticipated from development of the South Leverich 13-09 pad. Lighting at the proposed well site will only occur during drilling and completion operations. In the event a lighting complaint is received by a Residential Building Unit owner, TEP would take immediate action to evaluate the nighttime light intensity from the Oil and Gas Location as described in Rule 424.f. A light meter will be utilized to measure the light intensity and determine if the on-site lighting exceeds 4 lux as described in Rule 424.f. In the event that the nighttime lighting exceeds 4 lux, TEP will take immediate action to meet the requirement under Rule 424.f (i.e. redirect / reposition on-site lighting). BEST MANAGEMENT PRACTICES 1. Sufficient lighting will be utilized during pre-production and production (when necessary) activities to ensure the safety of all personnel on the oil and gas location. 2. In the event of an emergency, TEP will place a priority on personal safety and will adhere to Rule 424.a.(2).A.i. to ensure safety of those accessing and present at the site. Page 8 of 14 3. During drilling and completions operations, lighting will be directed downward and inward. Lighting during the drilling will be casted outwards only on necessary points for safety considerations. Lighting will be directed downward and inward to avoid excess lighting beyond perimeter of the oil and gas location. Drill rig lighting will illuminate the entire drill rig, which is required for a safe working environment and adherence to COGCC Rule 424.a.(2).A.i. 4. TEP will utilize appropriate equipment to reduce light intensity outside the perimeter of the South Leverich 13-09 oil and gas location. 5. TEP will utilize low-glare or no-glare lighting and will conduct lighting inspections to confirm lighting fixtures are orientated correctly. 6. In the event a lighting complaint is received by a Residential Building Unit owner, TEP would take immediate action to evaluate the nighttime light intensity from the Oil and Gas Location as described in Rule 424.f. A light meter will be utilized to measure the light intensity and determine if the on-site lighting exceeds 4 lux as described in Rule 424.f. In the event that the nighttime lighting exceeds 4 lux, TEP will take immediate action to meet the requirement under Rule 424.f (i.e. redirect / reposition on-site lighting). CERTIFICATION The Lighting Mitigation Plan was prepared by TEP’s Drilling and Completions Manager and TEP’s Planning Manager in coordination within Wanda Graham, an electrical designer with Bighorn Consulting Engineering, Inc. (“Bighorn”). Wanda has thirty-one years of experience in the design of electrical and lighting systems with an emphasis on lighting layout and design. Bighorn provided the Drilling Phase Lighting Site Plan and Diagram (Appendix B), which was utilized as the basis for development of this Lighting Mitigation Plan. During the COGCC training on April 6th, 2020, COGCC stated that the lighting specialist needed to have lighting experience in the industry but not a specific certification. __________________________________ ___________________________ Tyler Gillam Date Drilling and Completions Manager __________________________________ ___________________________ Adam Tankersley Date Planning Manager 7-18-2022 7-18-2022 f 1 ,, l Page 9 of 14 APPENDIX A SOUTH LEVERICH 13-09 DRILL PAD VICINITY MAP