Loading...
HomeMy WebLinkAbout1.13 Sound Study Article 4-203.G.7 Sound Study Ursa Operating Company Speakman A Booster Compressor OA Project No. 015-3104 fM!Ursa March 9, 2016 Mr. Glenn Hartmann C'ER.--1 ~G _c·'."f'!. r Garfield County Community Development 108 8th Street, Suite 401 Glenwood Springs, CO 81601 RE : Speakman A Booster Compresso r NTC #7 Dear Mr. Hartmann, 792 Buckhorn Drive Rifle, CO 81650 Per our phone conversation, the noise analysis was conducted by Robert Bleil, Dwayne Knudson, Dave Haye s, Ursa Operating Company LLC and peer reviewed by Ken Kreie, Olsson Associates. The noise readings provided in Exhibit A were taken by Dave Hayes, who has one year of experience with our noise monitoring equipment and has conducted over 100 noise readings. Ken Kreie 's credentials were attached to the original application, which shows six years' experience in noise control regulation compliance. In the NTC Response dated March pt, it was stated the "project noise levels for the proposed booster at 350 feet would be 45 .2 dBA; which is within COGCC's most restrictive standard of 50 dBA for rural/residential". The projected noise at 350' with proposed single compressor was ca lculated by using the existing 350' S data (47.5 dBA) minus 5% which is the average difference between the existing compressors and the proposed sing le compressor (47 .5 x 0.95 = 45.125). The average difference of 5% was calculated by subtracting the AXIP data from the Ursa data to equal the reading variations (87.07-88 .8 = -1.73). The percentage of difference was calculated by dividing the reading variation by the AXIP average (-1 .73/87.07= -2%). The existing six compressors are under the SOdBA therefore we anticipate the proposed single compressor will be under the SOdBA as well. However Ursa is proposing sound wall mitigation using an STC -40 sound wall to further reduce the potential for sound impacts to the community. Please let me know if you have any further questions. ~ Regulatory & Environmental Manager Ken~/ Olsson Associates www.ursaresources.com {970) 625 -9922 Telephone {970) 6 25-9929 Fax Exhibit A Sample Point Distance Ursa 2/24 (Existing 6)Distance AXIP AVG Reading Variation % Difference A 20'88.8 20'87.07 -1.73 -2% B 30'85.4 30'80.7025 -4.6975 -6% C 60'80.9 60'75.122 -5.778 -8% D 120'71.5 120'67.31 -4.19 -6% E 240'61.4 240'60.11 -1.29 -2% F 350' N 46.4 N/A N/A G 350' S 47.5 N/A N/A H 600' NW 42.7 N/A N/A *Note: AXIP Data is listed in the study found in Attachment A of the application. Average % Difference -5% Comparison InformationUrsa Data *AXIP Data 760 Horizon Drive, Suite 102 TEL 970.263.7800 Grand Junction, CO 81506 FAX 970.263.7456 www.olssonassociates.com 4-203.G.7 – Sound Data Review Ursa Operating Company Speakman A Booster Compressor At the request of Ursa Operating Company (Ursa), Olsson Associates (Olsson) has conducted an assessment of noise survey data. This assessment included survey data provided by Ursa and collected by Principle Environmental, LLC. The data set was collected at an existing facility where a booster compressor, identical to the one proposed for installation at the Speakman A, is installed. The purpose of this review is to assess the expected noise level that will be generated by the operation of the proposed booster compressor. Olsson used the existing noise level data and calculated the expected noise levels extrapolated out to the compliance point distance. Olsson provided an explanation of the anticipated noise levels with the new compressor and how they compare to the compliance limit set forth in the Colorado Oil and Gas Conservation Commission (COGCC) Rule 802. Noise Data The set of data that was reviewed was included in the Noise Signature Study Report for the Apache Bay City Compressor Station prepared by Principle Environmental, LLC. This data was collected in the vicinity of the operation of a 7044 Booster Compressor, identical to the equipment proposed to replace the existing wellhead gas lift compressors. The Noise Signature Study Report is attached to this report as Attachment A. Noise Generating Equipment One 7044 Booster Compressor in full operation at the Apache Bay City Compressor Station located in Matagorda, Texas. This compressor is identical to the equipment proposed for installation at the Speakman A location. Therefore the noise levels provided have been used to draw conclusions about the anticipated noise levels at the Speakman A location. Compliance Point(s) The COGCC Rule 802 uses the property line or 350 feet from the noise generating equipment, whichever is greater, as the compliance point for oil and gas operations. The nearest property boundary from the proposed Booster Compressor location is approximately 375 feet to the south of the facility. Therefore Olsson has used 375 feet away from the noise generating equipment as the compliance point. In addition to the distance representing the compliance point, Olsson has also calculated the sound pressure levels at the following distances from the noise generating equipment to determine what the sound pressure levels may be at various locations near the equipment.  800 feet, equal to the approximate distance to the western property boundary  950 feet, equal to the approximate distance to the northwestern property boundary  1425 feet, equal to the approximate distance to nearest occupied structure located to the west and distance to property boundary towards the northeast 015-3104 Sound Data Review –Speakman A Booster Compressor December 15, 2015  1575 feet, equal to the approximate distance to nearest occupied structure located to the north  1725 feet, equal to the approximate distance to the subdivision located to the northeast. Maximum Permissible Noise Levels Garfield County is applying the Residential/Agricultural/Rural noise standard, as prescribed in COGCC Rule 802.b.(2). The night time maximum permissible noise limit is 50 dB(A) for residential areas. This sound pressure limit has been used to determine if the proposed Booster Compressor would be a nuisance at the property lines and nearby occupied structure(s). Calculated Sound Pressure Levels The average sound pressure level of the booster compressor calculated from the noise survey data is 58.3 dB(A) at 375 feet. Olsson has assessed the potential noise level at a range of distances using the noise/distance extrapolation equation provided in COGCC Rule 802. This data is summarized in Table 1. Conclusion By utilizing the sound readings collected from identical equipment currently operating at an offsite location, we can estimate the sound pressure levels that would be generated from similar equipment operated at the Speakman A facility. The actual sound pressure level measurements collected at the Apache Bay Compressor Station facility can be extrapolated to the distance of the compliance point and the distances to nearby occupied structures. Unmitigated, the extrapolated sound pressure level average at the southwest and northwest property boundaries exceed the 50 dB(A) limit. However, the simple extrapolation equation used to calculate these noise levels does not account for the topography of the site. The facility topography and grading is such that the actual noise levels to the south and west will be greatly reduced. In addition, there are no existing occupied structures at the property boundaries in these directions. The calculated noise levels exceed the allowable nighttime noise limit under COGCC Residential limit at a distance of 350 feet and at some of the property boundaries. In order to mitigate potential sound levels which could impact nearby residences, an acoustical barrier will be installed along the northeast and a portion of the northwest sides of the compressor. The proposed STC-40 Rated MMA Barrier is shown on the attached report (Attachment B).The site topography and grading will act as a barrier along the sides of the compressor where no acoustical barrier is being installed. The site topography and grading is shown on the Speakman A Pad Site Plan (Attachment C). With the sound wall in place, sound pressure level averages at all nearby occupied structures are estimated well below the 50 dB(A) limit. The sound pressure levels extrapolated for the Speakman A site are calculated and actual noise levels will vary. The actual sound pressure levels will be measured during equipment operation to ensure compliance with COGCC Rule 802. 015-3104 Sound Data Review –Speakman A Booster Compressor December 15, 2015 Statement of Qualification I am a multi-disciplinary Project Manager at Olsson Associates. I have coordinated many Noise Control Regulation Compliance Assessments over six years at existing and planned noise generating equipment installations in Colorado. If you have any questions regarding this assessment, please contact me at 970-263-7800. Ken Kreie Senior Scientist Enclosures Table 1 - Noise Level Extrapolation at Varied Distances Attachment A - Noise Signature Study Report, Apache Bay City Compressor Station Attachment B - Behrens and Associates Environmental Noise Control proposal Attachment C - Speakman A Pad Site Plan Cc: Project File Ta b l e 1 N o i s e L e v e l E x t r a p o l a t i o n a t V a r i e d D i s t a n c e s D 1 dB A 1 D 2 dB A 2 D 3 dB A 3 D 4 dB A 4 D 5 dB A 5 D 6 dBA6 D 7 dBA7 20 '  Ea s t  of  co m p r e s s o r 20 8 7 . 0 7 37 5 61 . 6 80 0 55 . 0 95 0 53 . 5 14 2 5 50 . 0 15 7 5 49.1 1725 48.4 60 '  Ea s t  of  co m p r e s s o r 60 7 5 . 3 7 37 5 59 . 5 80 0 52 . 9 95 0 51 . 4 14 2 5 47 . 9 15 7 5 47.0 1725 46.2 30 '  So u t h  of  co m p r e s s o r 30 8 3 . 5 4 37 5 61 . 6 80 0 55 . 0 95 0 53 . 5 14 2 5 50 . 0 15 7 5 49.1 1725 48.3 60 '  So u t h  of  co m p r e s s o r 60 7 7 . 5 6 37 5 61 . 6 80 0 55 . 1 95 0 53 . 6 14 2 5 50 . 0 15 7 5 49.2 1725 48.4 30 '  So u t h w e s t  of  co m p r e s s o r 30 7 9 . 5 8 37 5 57 . 6 80 0 51 . 1 95 0 49 . 6 14 2 5 46 . 0 15 7 5 45.2 1725 44.4 60 '  So u t hw e s t  of  c om p r e s s o r 60 7 5 . 1 37 5 59 . 2 80 0 52 . 6 95 0 51 . 1 14 2 5 47 . 6 15 7 5 46.7 1725 45.9 30 '  We s t  of  co m p r e s s o r 30 8 0 . 6 5 37 5 58 . 7 80 0 52 . 1 95 0 50 . 6 14 2 5 47 . 1 15 7 5 46.2 1725 45.5 60 '  We s t  of  co m p r e s s o r 60 7 3 . 1 8 37 5 57 . 3 80 0 50 . 7 95 0 49 . 2 14 2 5 45 . 7 15 7 5 44.8 1725 44.0 30 '  No r t h w e s t  of  co m p r e s s o r 30 7 9 . 0 4 37 5 57 . 1 80 0 50 . 5 95 0 49 . 0 14 2 5 45 . 5 15 7 5 44.6 1725 43.8 60 '  No r t h w e s t  of  co m p r e s s o r 60 7 4 . 4 37 5 58 . 5 80 0 51 . 9 95 0 50 . 4 14 2 5 46 . 9 15 7 5 46.0 1725 45.2 12 0 '  We s t  of  co mp r e s s o r 12 0 6 7 . 3 1 37 5 57 . 4 80 0 50 . 8 95 0 49 . 3 14 2 5 45 . 8 15 7 5 44.9 1725 44.2 24 0 '  We s t  of  co m p r e s s o r 24 0 6 0 . 1 1 37 5 56 . 2 80 0 49 . 7 95 0 48 . 2 14 2 5 44 . 6 15 7 5 43.8 1725 43.0 Av e r a g e d  so u n d  pr e s u r e  le v e l s  at  ea c h  ex t r a p o l a t e d  di s t a n c e 58 . 3 51 . 7 50 . 2 46 . 7 45.8 45.0 D 1  Ac t u a l  Me a s u r e d  Di s t a n c e  at  ex i s t i n g  co m p r e s s o r *  Ex t r a p o l a t e d  Le v e l s  at  Va r i e d  Di s t a n c e s  ca l c u l a t e d  us i n g  th e  fo l l o w i n g  equation  (COGCC  Rule  802(c) 1) dB A 1  = Ac t u a l  So u n d  Pr e s s u r e  Le v e l  me a s u r e m e n t dB ( A ) Di s t a n c e 2 = d B ( A ) Di s t a n c e 1 - 2 0 x l o g 10 (D i s t a n c e 2 /D i s t a n c e 1 ) D 2   Ap p r o x i m a t e  di s t a n c e  to  so u t h e r n  pr o p e r t y  bo u n d a r y    dB A 2  = Ex t r a p o l a t e d  So u n d  Pr e s s u r e  Le v e l  at  so u t h e r n  pr o p e r t y  bo u n d a r y D 3   Ap p r o x i m a t e  di s t a n c e  to  we s t e r n  pr o p e r t y  bo u n d a r y    dB A 3  = Ex t r a p o l a t e d  So u n d  Pr e s s u r e  Le v e l  at  we s t e r n  pr o p e r t y  bo u n d a r y D 4   Ap p r o x i m a t e  di s t a n c e  to  no r t h w e s t e r n  pr o p e r t y  bo u n d a r y    dB A 4  = Ex t r a p o l a t e d  So u n d  Pr e s s u r e  Le v e l  at  no r t h w e s t e r n  pr o p e r t y  bo u n d a r y D 5   Ap p r o x i m a t e  di s t a n c e  to  ne a r e s t  oc c u p i e d  st r u c t u r e  lo c a t e d  to  th e  we s t  an d  di s t a n c e  to  pr o p e r t y  bo u n d a r y  to w a r d s  th e  no r t h e a s t dB A 5  = Ex t r a p o l a t e d  So u n d  Pr e s s u r e  Le v e l  at  ne a r e s t  oc c u p i e d  st r u c t u r e  to  th e  we s t  an d  pr o p e r t y  bo u n d a r y  to w a r d s  th e  no r t h e a s t D 6   Ap p r o x i m a t e  di s t a n c e  to  ne a r e s t  oc c u p i e d  st r u c t u r e  lo c a t e d  to  th e  no r t h    dB A 6  = Ex t r a p o l a t e d  So u n d  Pr e s s u r e  Le v e l  at  ne a r e s t  oc c u p i e d  st r u c t u r e  to  th e  no r t h D 7   Ap p r o x i m a t e  di s t a n c e  to  th e  su b d i v i s i o n  lo c a t e d  to  th e  no r t h e a s t dB A 7  = Ex t r a p o l a t e d  So u n d  Pr e s s u r e  Le v e l  at  th e  su b d i v i s i o n  lo c a t e d  to  th e  no r t h e a s t Ac t u a l  So u n d  Pr e s s u r e   Me a s u r e m e n t s Me a s u r e d E x t r a p o l a t e d  Le v e l s  at  Va r i e d  Di s t a n c e s * ATTACHMENT A PRINCIPLE ENVIRONMENTAL, LLC Noise Signature Study Report Apache Bay City Compressor Station Matagorda County, Texas Prepared for: AXIP ENERGY SERVICES 919 Milam, Suite 850 Houston, TX 77002 Prepared by: Principle Environmental, LLC 201 West Ranch Court Weatherford, Texas 76088 August 22, 2014 AXIP 7044 Compressor Noise Signature 140822 August 2014 Noise Signature Study Report Apache Bay City Compressor Station Matagorda, Texas Principle Environmental, LLC (Principle) prepared this report to document a noise signature study performed on the Apache Bay City Compressor Station in Matagorda, Texas. The data from noise signature studies can be used to determine noise power levels for the 7044 Compressor. Once the power levels of the equipment are determined, they can be used to generate predictive sound models of the site. The sound models are generated using Datakustik CadnaA version 4.3.143 software program and predict the propagation of sound generated from the equipment. CadnaA analyzes the power levels and height of the drilling sound sources and takes into account the topography of the land in order to accurately predict sound levels at nearby protected use structures. Principle conducted the monitoring at the site on Wednesday, August 6, 2014. Several monitoring locations were chosen around the 7044 Compressor operation in order to fully document the noise signature of the operation. The monitoring points are shown in the figure below and also in the photographs provided in Attachment 1. Two compressor are shown in the figure below, but only the unit that is south of the pad was running at the time of the study. AXIP 7044 Compressor Noise Signature 140822 August 2014 The 7044 Compressor is shown in the figure below. AXIP 7044 Compressor Noise Signature 140822 August 2014 The following table summarizes the project average sound levels obtained during the monitoring: Monitoring Location Distance (ft.) Description LAeq (dB) LCeq (dB) 1 20 East of compressor 87.07 93.84 2 60 East of compressor 75.37 86.10 3 30 South of compressor 83.54 91.23 4 60 South of compressor 77.56 87.60 5 30 Southwest of compressor 79.58 90.42 6 60 Southwest of compressor 75.10 86.06 7 30 West of compressor 80.65 94.23 8 60 West of compressor 73.18 89.06 9 30 Northwest of compressor 79.04 90.05 10 60 Northwest of compressor 74.40 86.70 11 120 West of compressor 67.31 83.90 12 240 West of compressor 60.11 78.94 Sound levels were measured at the monitoring locations using Brüel & Kjær Type 2250, 4th generation, hand-held analyzers (S/N: 3003239) and (S/N: 3002528). Manufacturer’s specifications for these meters are provided in Attachment 2. The software modules in the Type 2250 allows for real-time frequency analysis, analysis of time histories for broadband parameters and spectra, and documentation of measurements through recording of measured sound. These meters were chosen to measure and log sound levels for this survey because the equipment is relatively versatile and rugged, measures sound levels over a wide range, allows user-defined profile measurements to be used in lieu of factory preset profile measurements, allows for the measurement of several sound parameters at discrete time intervals, and stores all of the collected data for subsequent download and reduction on a computer. Sound pressure level measurements are commonly weighted in relation to their frequency components in order to provide a consistent basis for comparison to other measurements of the same type. The following graph depicts three common weighting curves plotted together for reference. AXIP 7044 Compressor Noise Signature 140822 August 2014 An A-weighted filter was used during this study which corresponds to the human ear’s response at low to medium sound levels. Time weighting defines how the exponential averaging in root- mean-square measurement is done. The A-weighted filter with fast time weighting is common for environmental noise measurement. The following A-weighted sound level parameters were recorded every second of the study: · LAeq - The equivalent continuous sound level over a specified period of time that represents the same energy as the actual time varying noise signal; The ‘A’ in the above variables denotes that the A-weighting has been included and the ‘F’ denotes that the fast time weighting was used. In addition to the above measurements taken on the Apache Bay City Compressor Station, spectral analysis was also conducted on this study. The sound from the Apache Bay City Compressor Station was broken down into its frequency components using third-octave bands. A third-octave band is defined as a frequency band whose upper band-edge frequency is 1.26 times the lower band frequency. As commonly used with octave band filters, C-weighting was used in the spectral analysis. In Attachment 3, Figures 1 through 12 show the total spectrum frequency plots for each of the monitoring locations. AXIP 7044 Compressor Noise Signature 140822 August 2014 It should be noted that dBs are a measure of sound energy based on a logarithmic scale. As such, a sound level of 60 dB contains 10 times more sound energy relative to a sound level of 50 dB, and a sound level of 70 dB contains 100 times more sound energy relative to a sound level of 50 dB. Principle captured data from 12 monitoring locations during operations of the 7044 compressor. It should be noted that the monitoring was conducted during a clear day with slight wind. All wind speeds measured during monitoring did not exceed 8 mph. After monitoring, the data collected by the meters was downloaded to a computer using Brüel & Kjær BZ-5503 Utility Software for Hand-held Analyzers Version 3.11.0.335. Due to the frequency at which the meters log information, the data generated by this study is voluminous. To reduce this into meaningful information, Principle used the manufacturer’s software, coupled with Excel spreadsheets, to summarize the data. AXIP 7044 Compressor Noise Signature 140822 August 2014 For comparison, the following table presents a summary of typical decibel levels for multiple types of sounds as compiled from multiple Internet sources. Description of Sound Sound Level (dB) Threshold of Hearing 0 Rustling Leaves 20 Quiet Whisper (3 feet away) 30 Quiet Home 40 Quiet Street 50 Normal Conversation 60 Inside Car 70 Automobile (25 feet away) 80 OSHA 1926.52 Permissible Noise Exposure for an 8 hour duration per day 90 Train Whistle (500 feet away) 90 Level at which sustained exposure may result in hearing loss 90 - 95 Diesel Truck (30 feet away) 100 Power Mower (3 feet away) 107 Amplified Rock and Roll (6 feet away) 120 Pain Begins 125 Jet Airplane (100 feet away) 140 Even short term exposure can cause permanent damage – Loudest recommended exposure WITH hearing protection 140 The services provided for this project were performed with the care and skill ordinarily exercised by reputable members of the profession practicing under similar conditions. No warranty, expressed or implied, is made or intended by rendition of these consulting services or by furnishing oral or written reports of the findings made. Principle Environmental, LLC prepared this report for the exclusive use by AXIP ENERGY SERVICES . _____________________________________________________________ ATTACHMENT 1 PHOTO LOG _____________________________________________________________ Photo 1: View of Monitoring Points 1 and 2, 20 and 60 ft. East of Equipment Photo 2: View of Monitoring Points 3 and 4 , 30 and 60 ft. South of Equipment Photo 3: View of Monitoring Points 5 and 6, 30 and 60 ft. Southwest of Equipment Photo 4: View of Monitoring Points 7 and 8, 30 and 60 ft. West of Equipment Photo 5: View of Monitoring Points 9 and 10, 30 and 60 ft. Northwest of Equipment Photo 6: View of Monitoring Points 11 and 12, 120 and 240 ft. West of Equipment _____________________________________________________________ ATTACHMENT 2 MANUFACTURER’S SPECIFICATIONS _____________________________________________________________ _____________________________________________________________ ATTACHMENT 3 FIGURES _____________________________________________________________ 12.5 Hz 16 Hz 20 Hz 25 Hz 31.5 Hz 40 Hz 50 Hz 63 Hz 80 Hz 100 Hz 125 Hz 160 Hz 200 Hz 250 Hz 315 Hz 400 Hz 500 Hz 630 Hz 800 Hz 1 kHz 1.25 kHz 1.6 kHz 2 kHz 2.5 kHz 3.15 kHz 4 kHz 5 kHz 6.3 kHz 8 kHz 10 kHz 12.5 kHz 16 kHz 20 kHz LAeq (dB)10 21 36 27 34 46 52 54 57 59 61 64 76 78 77 78 77 74 78 74 75 74 72 71 71 71 69 68 66 64 63 59 44 Lceq (dB)62 69 80 67 70 78 81 80 79 78 76 77 86 87 83 83 80 76 79 74 74 73 70 70 69 69 68 66 64 62 61 57 42 0 10 20 30 40 50 60 70 80 90 100 So u n d L e v e l ( d B ) Figure 1 Total Spectrum Plot Apache Bay City Compressor Station Noise Signature Study Monitoring Location 1, 20 ft. East of equipment Wednesday, 8/6/2014 12.5 Hz 16 Hz 20 Hz 25 Hz 31.5 Hz 40 Hz 50 Hz 63 Hz 80 Hz 100 Hz 125 Hz 160 Hz 200 Hz 250 Hz 315 Hz 400 Hz 500 Hz 630 Hz 800 Hz 1 kHz 1.25 kHz 1.6 kHz 2 kHz 2.5 kHz 3.15 kHz 4 kHz 5 kHz 6.3 kHz 8 kHz 10 kHz 12.5 kHz 16 kHz 20 kHz LAeq (dB)11 19 31 26 29 38 49 52 54 58 52 62 62 65 64 68 65 63 62 60 62 61 61 61 60 61 60 59 57 55 53 48 32 Lceq (dB)63 67 75 66 66 70 78 77 76 76 68 76 73 74 71 73 68 65 62 60 62 60 59 59 59 59 58 57 55 53 51 46 30 0 10 20 30 40 50 60 70 80 90 100 So u n d L e v e l ( d B ) Figure 2 Total Spectrum Plot Apache Bay City Compressor Station Noise Signature Study Monitoring Location 2, 60 ft. East of equipment Wednesday, 8/6/2014 12.5 Hz 16 Hz 20 Hz 25 Hz 31.5 Hz 40 Hz 50 Hz 63 Hz 80 Hz 100 Hz 125 Hz 160 Hz 200 Hz 250 Hz 315 Hz 400 Hz 500 Hz 630 Hz 800 Hz 1 kHz 1.25 kHz 1.6 kHz 2 kHz 2.5 kHz 3.15 kHz 4 kHz 5 kHz 6.3 kHz 8 kHz 10 kHz 12.5 kHz 16 kHz 20 kHz LAeq (dB)8 18 32 29 36 50 51 55 59 57 58 67 69 72 73 76 74 71 74 71 70 69 70 70 69 68 67 66 64 62 59 54 40 LCeq (dB)61 67 76 69 73 83 79 80 81 76 74 80 80 81 80 80 77 73 75 71 69 68 69 68 67 67 65 64 62 60 58 52 38 0 10 20 30 40 50 60 70 80 90 So u n d L e v e l ( d B ) Figure 3 Total Spectrum Plot Apache Bay City Compressor Station Noise Signature Study Monitoring Location 3, 30 ft. South of equipment Wednesday, 8/6/2014 12.5 Hz 16 Hz 20 Hz 25 Hz 31.5 Hz 40 Hz 50 Hz 63 Hz 80 Hz 100 Hz 125 Hz 160 Hz 200 Hz 250 Hz 315 Hz 400 Hz 500 Hz 630 Hz 800 Hz 1 kHz 1.25 kHz 1.6 kHz 2 kHz 2.5 kHz 3.15 kHz 4 kHz 5 kHz 6.3 kHz 8 kHz 10 kHz 12.5 kHz 16 kHz 20 kHz LAeq (dB)10 18 29 27 30 46 48 52 55 54 55 64 68 70 64 69 64 62 65 65 64 63 64 63 63 62 61 59 58 55 52 46 32 LCeq (dB)63 66 74 67 67 78 77 77 77 73 71 77 79 78 71 74 68 64 66 65 63 62 63 61 61 60 59 57 56 53 50 44 30 0 10 20 30 40 50 60 70 80 90 100 So u n d L e v e l ( d B ) Figure 4 Total Spectrum Plot Apix Apache Bay City Compressor Station Noise Signature Study Monitoring Location 4, 60 ft. South of equipment Wednesday, 8/6/2014 12.5 Hz 16 Hz 20 Hz 25 Hz 31.5 Hz 40 Hz 50 Hz 63 Hz 80 Hz 100 Hz 125 Hz 160 Hz 200 Hz 250 Hz 315 Hz 400 Hz 500 Hz 630 Hz 800 Hz 1 kHz 1.25 kHz 1.6 kHz 2 kHz 2.5 kHz 3.15 kHz 4 kHz 5 kHz 6.3 kHz 8 kHz 10 kHz 12.5 kHz 16 kHz 20 kHz LAeq (dB)11 19 28 31 39 51 51 54 58 60 63 64 68 69 68 71 70 68 68 67 66 66 65 64 63 62 60 59 57 54 51 45 30 LCeq (dB)63 67 72 72 75 84 80 79 80 79 79 77 79 78 75 76 73 70 69 67 66 65 64 62 61 60 58 57 55 52 49 43 29 0 10 20 30 40 50 60 70 80 90 So u n d L e v e l ( d B ) Figure 5 Total Spectrum Plot Apache Bay City Compressor Station Noise Signature Study Monitoring Location 5, 30 ft. Southwest of equipment Wednesday, 8/6/2014 12.5 Hz 16 Hz 20 Hz 25 Hz 31.5 Hz 40 Hz 50 Hz 63 Hz 80 Hz 100 Hz 125 Hz 160 Hz 200 Hz 250 Hz 315 Hz 400 Hz 500 Hz 630 Hz 800 Hz 1 kHz 1.25 kHz 1.6 kHz 2 kHz 2.5 kHz 3.15 kHz 4 kHz 5 kHz 6.3 kHz 8 kHz 10 kHz 12.5 kHz 16 kHz 20 kHz LAeq (dB)10 16 24 27 34 45 46 50 54 56 59 62 65 67 63 65 64 63 63 61 62 61 61 60 59 58 57 55 53 51 48 41 26 LCeq (dB)62 64 68 67 71 78 74 75 76 75 75 76 76 76 69 70 68 65 64 61 61 60 59 58 57 57 55 53 52 49 46 40 24 0 10 20 30 40 50 60 70 80 90 100 So u n d L e v e l ( d B ) Figure 6 Total Spectrum Plot Apache Bay City Compressor Station Noise Signature Study Monitoring Location 6, 60 ft. Southwest of equipment Wednesday, 8/6/2014 12.5 Hz 16 Hz 20 Hz 25 Hz 31.5 Hz 40 Hz 50 Hz 63 Hz 80 Hz 100 Hz 125 Hz 160 Hz 200 Hz 250 Hz 315 Hz 400 Hz 500 Hz 630 Hz 800 Hz 1 kHz 1.25 kHz 1.6 kHz 2 kHz 2.5 kHz 3.15 kHz 4 kHz 5 kHz 6.3 kHz 8 kHz 10 kHz 12.5 kHz 16 kHz 20 kHz LAeq (dB)11 22 35 35 42 57 56 59 63 62 62 66 68 70 71 71 70 70 69 69 69 68 67 66 63 61 60 58 55 54 51 44 31 LCeq (dB)63 70 80 75 78 90 85 84 85 80 78 79 79 79 78 75 73 72 70 69 69 67 66 64 61 60 58 56 53 52 49 42 29 0 10 20 30 40 50 60 70 80 90 100 So u n d L e v e l ( d B ) Figure 7 Total Spectrum Plot Apache Bay City Compressor Station Noise Signature Study Monitoring Location 7, 30 ft. West of equipment Wednesday, 8/6/2014 12.5 Hz 16 Hz 20 Hz 25 Hz 31.5 Hz 40 Hz 50 Hz 63 Hz 80 Hz 100 Hz 125 Hz 160 Hz 200 Hz 250 Hz 315 Hz 400 Hz 500 Hz 630 Hz 800 Hz 1 kHz 1.25 kHz 1.6 kHz 2 kHz 2.5 kHz 3.15 kHz 4 kHz 5 kHz 6.3 kHz 8 kHz 10 kHz 12.5 kHz 16 kHz 20 kHz LAeq (dB)9 18 30 30 37 52 51 53 58 58 57 61 62 61 61 63 63 62 62 62 61 60 59 58 55 53 52 50 48 47 44 37 23 LCeq (dB)61 66 74 71 73 85 80 78 80 77 72 75 73 69 68 67 66 64 63 62 60 59 58 56 54 52 50 48 46 45 42 35 21 0 10 20 30 40 50 60 70 80 90 So u n d L e v e l ( d B ) Figure 8 Total Spectrum Plot Apache Bay City Compressor Station Noise Signature Study Monitoring Location 8, 80 ft. West of equipment Wednesday, 8/6/2014 12.5 Hz 16 Hz 20 Hz 25 Hz 31.5 Hz 40 Hz 50 Hz 63 Hz 80 Hz 100 Hz 125 Hz 160 Hz 200 Hz 250 Hz 315 Hz 400 Hz 500 Hz 630 Hz 800 Hz 1 kHz 1.25 kHz 1.6 kHz 2 kHz 2.5 kHz 3.15 kHz 4 kHz 5 kHz 6.3 kHz 8 kHz 10 kHz 12.5 kHz 16 kHz 20 kHz LAeq (dB)14 20 31 31 39 48 50 56 60 60 63 63 67 68 67 68 70 68 69 67 68 67 66 64 62 61 60 58 56 53 51 44 31 LCeq (dB)66 68 75 71 75 80 79 82 82 79 79 77 78 77 74 72 73 70 70 67 67 66 64 62 61 59 58 56 54 52 49 42 29 0 10 20 30 40 50 60 70 80 90 So u n d L e v e l ( d B ) Figure 9 Total Spectrum Plot Apix Apache Bay City Compressor Station Noise Signature Study Monitoring Location 9, 30 ft. Northwest of equipment Wednesday, 8/6/2014 12.5 Hz 16 Hz 20 Hz 25 Hz 31.5 Hz 40 Hz 50 Hz 63 Hz 80 Hz 100 Hz 125 Hz 160 Hz 200 Hz 250 Hz 315 Hz 400 Hz 500 Hz 630 Hz 800 Hz 1 kHz 1.25 kHz 1.6 kHz 2 kHz 2.5 kHz 3.15 kHz 4 kHz 5 kHz 6.3 kHz 8 kHz 10 kHz 12.5 kHz 16 kHz 20 kHz LAeq (dB)10 17 29 27 35 44 46 54 57 57 60 59 63 63 63 62 65 62 64 62 63 62 61 59 58 57 55 53 52 51 48 42 28 LCeq (dB)62 65 73 68 71 77 75 79 79 76 76 72 73 72 70 67 68 64 64 62 62 62 60 58 56 55 54 52 50 49 46 41 27 0 10 20 30 40 50 60 70 80 90 100 So u n d L e v e l ( d B ) Figure 10 Total Spectrum Plot Apache Bay City Compressor Station Noise Signature Study Monitoring Location 10, 60 ft. Northwest of equipment Wednesday, 8/6/2014 12.5 Hz 16 Hz 20 Hz 25 Hz 31.5 Hz 40 Hz 50 Hz 63 Hz 80 Hz 100 Hz 125 Hz 160 Hz 200 Hz 250 Hz 315 Hz 400 Hz 500 Hz 630 Hz 800 Hz 1 kHz 1.25 kHz 1.6 kHz 2 kHz 2.5 kHz 3.15 kHz 4 kHz 5 kHz 6.3 kHz 8 kHz 10 kHz 12.5 kHz 16 kHz 20 kHz LAeq (dB)13 18 26 27 33 47 46 48 52 52 52 56 57 56 53 54 54 55 56 56 56 55 54 53 51 49 47 45 42 44 42 36 23 LCeq (dB)65 66 70 68 69 79 75 74 74 71 68 69 68 65 59 59 57 57 57 56 55 54 53 51 49 47 46 43 41 42 40 34 21 0 10 20 30 40 50 60 70 80 90 100 So u n d L e v e l ( d B ) Figure 11 Total Spectrum Plot Apache Bay City Compressor Station Noise Signature Study Monitoring Location 11, 120 ft. West of equipment Wednesday, 8/6/2014 12.5 Hz 16 Hz 20 Hz 25 Hz 31.5 Hz 40 Hz 50 Hz 63 Hz 80 Hz 100 Hz 125 Hz 160 Hz 200 Hz 250 Hz 315 Hz 400 Hz 500 Hz 630 Hz 800 Hz 1 kHz 1.25 kHz 1.6 kHz 2 kHz 2.5 kHz 3.15 kHz 4 kHz 5 kHz 6.3 kHz 8 kHz 10 kHz 12.5 kHz 16 kHz 20 kHz LAeq (dB)11 16 22 24 29 42 41 42 46 46 45 47 47 45 44 46 47 49 50 50 50 49 48 47 45 43 41 39 36 35 34 30 20 LCeq (dB)63 64 66 64 65 75 70 68 68 65 61 60 57 54 51 51 51 50 50 50 49 48 47 45 43 41 39 37 34 33 32 28 18 0 10 20 30 40 50 60 70 80 90 100 So u n d L e v e l ( d B ) Figure 12 Total Spectrum Plot Apache Bay City Compressor Station Noise Signature Study Monitoring Location 12, 240 ft. West of equipment Wednesday, 8/6/2014 ATTACHMENT B Behrens and Associates, Inc. Environmental Noise Control California – Texas – Colorado – Pennsylvania – Louisiana – Canada - Australia Toll Free Phone 800-679-8633 www.environmental-noise-control.com ~ www.drillingnoisecontrol.com October 29, 2015 Ursa Operating Company 792 Buckhorn Dr. Rifle, CO 81650 Attention: Dwayne Knudson Subject: ENC MMA Sound Wall Cost Proposal Re: Speakman A Injection Site Dear Mr. Knudson, Per our discussion please find the following cost proposal for our ENC MMA Sound Wall to be utilized near your injection equipment at the Speakman A Site in Garfield County, CO. Our cost include acoustic material, delivery, and installation. More information on our complete line of products and services can be found on our websites at www.drillingnoisecontrol.com and www.environmental-noise-control.com. Please do not hesitate to contact us with any additional questions or concerns. Very truly yours, Tom Carter Business Development Rep. – Rockies Behrens & Associates, Inc. Environmental Noise Control tcarter@baenc.com PROPOSAL APPROVAL If approved, please complete this section and return via email to mcott@baenc.com Approved by: PO or AFE #: Date: Behrens and Associates, Inc. Environmental Noise Control California – Texas – Colorado – Pennsylvania – Louisiana – Canada - Australia Toll Free Phone 800-679-8633 www.environmental-noise-control.com ~ www.drillingnoisecontrol.com Ursa Operating Company October 29, 2015 Page 2 Acoustical Materials Description ENC MMA Sound Panel System ENC MMA pre-fabricated sound control panel System with pre-painted steel 26 gauge U-Panel exterior and 3.2#/ft2 composite construction barrier/absorber acoustical insulation system supported by 4” sched 40 posts set on 8’ centers. Panel colors will be Light Stone interior and Desert Tan exterior color unless otherwise specified by customer. Product brochure included below as Attachment “1”, and proposed layout as Attachment “2”. . Acoustical Materials Cost Proposal The following material costs include design, material and installation of components. The acoustical barrier will be 12’(h) x 56’(l). An MMA product spec sheet has been included as Attachment “1”. 12’ High STC-40 Rated MMA Barrier 1. Quantity (9) Panels or 56’ linear feet @ $1,695.00 per panel: $ 15,255.00 2. Installation of 56’ Linear Feet of MMA Sound Wall @ $95.00/linear foot: $ 5,320.00 3. Freight and Delivery of materials to location: $ 1,750.00 Total cost for design, delivery and installation of all materials above $ 22,325.00 Cost Proposal Notes: 1. Payment terms Net 30 days. 2. Costs do not include any applicable sales tax. 3. To process order please supply with proposal signoff. 4. Quoted price includes Installation.. 5. Delays caused by Ursa Staff, Ursa Contractors, or inclement weather will be billed back at daily rate of $1500.00/day. 6. Lead time for delivery is 2-3 weeks following notice to proceed. 7. Quotation is valid for 30 days. Attachments Behrens and Associates, Inc. Environmental Noise Control California – Texas – Colorado – Pennsylvania – Louisiana – Canada - Australia Toll Free Phone 800-679-8633 www.environmental-noise-control.com ~ www.drillingnoisecontrol.com Attachment “1” Attachment “2” Behrens and Associates, Inc. Environmental Noise Control California – Texas – Colorado – Pennsylvania – Louisiana – Canada - Australia Toll Free Phone 800-679-8633 www.environmental-noise-control.com ~ www.drillingnoisecontrol.com Ursa Operating Company Speakman A Wellpad Proposed Compressor and Mitigation Layout Compressor 40’ 16’ ATTACHMENT C Property Description The NWl/4 Of The SEl/4, TheNEl/4 Of The SEl/4 & That Portion Of the NEl/4 Of the SWl/4 Lying South OF The Garfield County Road Traversing Said Quarter Section, OfSection24, Township 7 South, Range 96 West, Of the 6th Principal Meriden, County Of Garfield, State Of Colorado. NOTES: I) This Property Is Subject To Reservations, Restrictions, Covenants, Setbacks And Easements Of Record, Or In Place. This Site Plan Was Prepared Without The Benefit Of A Title Commitment Therefore, Exceptions To Title That MAY Affect The Subject Property Have Not Been Researched By River Valley Surveys, Inc. 2) The Date Of This Survey Was January 19, 2014. 3) Basis Of Bearings For This Survey Is A Bearing Of S89°13'04"e Between The Center QuarterOfSecti.on24, 31" BLM Aluminum Cap Found In Place And The East Quarter OfSection24, A3" Brass Cap L.S. No. 12770 Fonndln Pl"'°. 4) Units Of Measure For All Dimensions Shown Hereon Is U.S. Survey Feet 5) This Site Plan Is Based On The General Warranty Deed Recorded April 30, 1996 As Reception No. 492265 In The Garfield County Clerk And Recorder's Office And Comers Fonnd In Place. 6) Elevations Are Based On NA VD 1988. 7) There Was Approximately 14" Of Snow And Ice On The Ground At The Time Of Survey. 8) This Property Is Zoned Rural Per The Garfield Connty Zoning Map. SURVEYOR'S CERTIFICATE I, Scoot A, Allmer A Registered Land Surveyor, Licensed Under The Laws Of The State Of Colorado Do Hereby Certify That The Survey Shown Hereon Was Prepared By River Valley survey, Inc., For Ursa Operating Company, LLC. By Me Or Under My Direct Supervision And That This Site Plan Is A True representation thereof. \ VICINITY MAP SCALE: 1" -4,000' Graphic Scale ( IN FEET ) I inch = 200 fL Battlement Mesa Land Site Plan Speakman A Pad The NWl/4 Of The SEl/4, The NEl/4 Of The SEl/4 & A Portion Of the NEl/4 Of the SWl/4, Of Section 24, Township 7 South, Range 96 West, Of the 6th Principal Meriden, County Of Garfield, State Of Colorado I I Existing Pad Limits 0 ~~Traffic. Direction Will Remain the Same During Drilling Operations. I 12A@..,. 00 32BW 0 12a i®..,. 0 32C \!lfo O 0 00 00 Speakman A Pad Pad Elev.= 5186'± Sepamtors ~ Existing ~Pad Limits / Sepamtor Placement Area Exist. O 00 \ /UlCWell 00 091033CCWIWI Exist.~ 6" Gas O 6" Gas Pipeline '\ 0 Pipelin: 0 Exit / ~:nbustor ~· '-F~~t\"c'.W ~ Q~ /. E~;:~sor ·q,, / Existing ~ ,-~ Existi o: Tanks PadLimit 0 0000 ooo ~its as er Form 2A Pad "' Graphic Scale ' "' "' ( IN FEET ) I inch = 60 fL Metcalf Property Management, LLC. ,..,,,,~-=-----1-------- ---- - - --_ -·--.....-_ -Parce!No.2409-242--00-1~ ~ -r--.....--::: ._..:;:-- - --===--------/ / C'J.L5CJ c--~ C6 / -.......... ______ _ 2672.43' s 89°13' //, ' C5 L6 L7 o0 / /. '"'1 Parcel No. / /. \}< 2409-242-00-155 ,..... ,,..-::: I //. "" Lari Metcalf //. I I / /. \,'). NEl/4,SWl/4 /. / /. Sec. 24 T7S,R86W I -J-........ .......... ----_,,/ / enter Quarter Comer -----,,,,..... SEC. 24 -BLM Alwn.Garfield Conn Cap In Place Road 300 I I Secti~ 1 Line 'j I #5 Rebar & ea -+ _ _ _ L.S. #36572 (Typ:L_ \'\~ ///-- - - - - - --i 1 -- --r---,50'Pow~-- - - - - \\ Line Easement \~ / ~ --------T---~I______ ------ \ ~/ ~ I I t-------- ~ / >\\ \ / ~ ~~~:0~ouse I l-f-7""-·486.4' ~ ELEV=5185± I James Raso Parcel No. !409-243-00-134 / / / ":". ~ Sp1~ : ~ "-'\, I ~"-' .......... -\\ ;<:i ~....,__ ,, I / ~ ---'\\ ,, \\\\ \\ I Bureau Of Land Management Parcel No. I 2409-251-0()..954 N 89°22'49" W NOTICE: ACCOl!Dil'IG TO COLORADO LAW YOU MUST COMMENCE ANY LEGAL ACTION BASED UPON ANY DEPECT IN TlilS SURVEY WI'I'HD'I TBRBE YEARS AFI'ER. YOU FlllST DISCOVER SUCH DEFECT. INNOEVENTMAY ANY ACTION BASED UPON ANY DEFECT IN THIS SUR.VEY BE COMMENCED MORE TIIAN TEN YEARS FROM THE DATE OF CERTIFICATION SHOWN HEREON. ~ \'-]\ I \.'-.. .::....::-- -~·---+-r-- -.L 1303.81'°'-........::: -.._/ -::::c Buresu Of Land Management Parcel No. 2409-251-00..954 James & Monique Speakman Parcel NO. 2409-244-0()..124 100.368ac.± NWl/4,SEl/4 Sec. 24 T7S,R86W -, 0' Access Easement Per Rec. No. 759298 30·-j~ :30' Power Line Easement _l Per Rec. No. 696425 ----,--- ----'-----N 89°24'03" W Bureau Of Land Management Parcel No. 2409-251-00-954 ~ 1882.31' 1 I I Speakman PadB NEl/4,SEl/4 Sec. 24 T7S,R.86W Not Completed #5Rebar&C L.S. #36572 (Typ.) N 88°48'36" W East Quarter Corn Sec. 24 -3" Brass Cap L.S. No. 12770 30' 30' Power Line Easemen't-~-l Per Rec. No. 696425 #5 Rebar& L.S. #36572 (Iyp.) 762.92' High Mesa Partners, LLC. ParcelNo.2407-193-00..189 CURVE TABLE CURVE RADIUS LENGTH TANGENT Cl 355.00' 53.70' 26.9!1 C2 210.53' 81.62' 41.33' C3 194.CXY 30.43' 15.25' C4 654.(Xl' 114.24' 57.27' C5 756.00' 164.16' 82.41' a; 208.40' 54.33' 27.32' Ursa Operating Company LLC 792 Buckhorn Dr. Rifle, Colorado 81650 River Valley Survey, Inc. 110 East 3rd. Street, Suite 213 Rifle, Colorado 81650 Ph: 970-379-7846 CHORD BEARING 53.65' N66°T39"E 81.11' s 70°16'30" w 30.40' N77°32'1"W 114.09' S 78"02'39" E 163.84' S 89°16'9" E 54.18' s 88°29'53" w Drawn By: JRN Checked By: SEA Dat.e: February 19, 2014 """"'"" S A Pad SP DELTA 08°40'02" 22°12'46" 08°59'14" 10°00'30" 12°26'30" 14°56'18" NO. Date 6123/2014 12/07/2015 LINE TABLE LINE LENGTH BEARING LI 95.97 s 61°47'37" w l2 26723 s 60"52'45" w L3 108.64 s 61°27'19" w L4 237.83 s 59"10'07" w L5 48.56 N 89D13'04" w L6 20.91 s 84°30'36" w L7 126.95 s 81"01'44" w L8 2.17 N 00°44'22" E Revision B Prepared For: Add Traffic Flow Note sea Ursa Operating Co. Updated Piao, Add Compressor Skid, Sound Wall sea 792 Buckhorn Drive Rifle, Co 81650 Speakman A Pad Site Plan Sec. 24, Township 7 South, Range 96 West "" Project NO. 06001-44 1of1