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Home My WebLink About20180032.tiffUSE BY SPECIAL REVIEW (USR) APPLICATION DEPARTMENT OF PLANNING SERVICES * 1555 N. 17Th AVENUE t GREELEY, CO 80631 ww. wel dgo v. com * 970-353-6100 EXT. 3540 i FAX 970-304-6498 FOR PLANNING DEPARTMENT ENT USE: AMOUNT APPLICATION RECEIVED BY Parcel Number*: 1 4 7 1 Address of site: TBD DATE RECEIVED: CASE # ASSIGNED: PLANNER ASSIGNED: 1 1. 0 0 0 _0 0 9 (*A 12 digit minter on Tax I.D1 information, obtainable at w w w .w ekloov .corn) . LOT B, REC 17-0168 , being part of the SE4 and E2SW4 of Section 11, Township 1N, Range 66 West, of the 6th PIA County of We Legal scription: d State of CO Zone District: Agricultural Acreage: 138.41 Floodplain:OY a Geological Hazard:C o Airport C riay:OY 1= WNER( M OF JHIE PR PERT)/ Name: Cory Jordan Company; DISCOVERY DJ SERVICES Lit Phone #: 214-414-1980 Email: cory@discoverymidstream.com Street Address: 7859 Walnut Hill Lane, Suite 335 CitylState/Zip Code: Dallas, TX 75230 Name: Company: Phone #: Street Address: City/State/Zip Code Name Email:: Company: Phone #: Street Address: City/State/Op Code: Email: PPcl Ni CR AItTHQI VFl AGENT: (See below Authorization must etc orrpany a!! applications signed byAuthorized Agents) Name: Mark Skelskey Company: Samuel Engioneering Phone #: 303-567-7537 Email: m.s►.e!skey@samuei , gineeririgncomm Street Address: 8450 East Crescent Parkway, 200 City/State/Zip Code: Greenwood Village, CO 80111 PROPOSED USE: 200 MM CF D Cryogenic Gas Processingfacility lity for the processing of natural gas products, and related equipment and structures, metering equipment for the custody transfer of gas, natural gas liquids (N GL's) and condensate; Transloading outdoor equipment and materials, storage yard and more than one cargo (Conex) 1 (We) hereby depose and state under penalties of perjury that all statements, proposals, and/or plans submitted with or contained within the application are true and correct to the bestof my (our)knowledge. Signatures of all fee owners of property must sign this application. If an Authorized Agent signs, a letter of authorization from all fee owners must be included with the application If a corporation is the fee owner, notarized evidence must be included indicating that the signatory has to legal authority to sign for the rpore 'on . 1it Irt Signature: r or or Authorized Agent N.\ r 4 bAv - 0 Date Signature: Owner or Authorized Agent Date Print Name e Print Name Rev 4/2016 (continued from above) Container and more than one construction trailer (10 estimated) in the A (Agricultural) Zone District, located on land described as Lot B, RECXI 7-0 . DISC o VERY MIDSTREAM PARTNERS l'irlay 31, 2017 Mr. Kim Ogle Weld County Department of Planning 1.555 North 17'' Avenue Greeley, Colorado 80631 Dear Mr. Ogle, This team- serves as c.;unfirrnatiun of Curt' Jordan's authority to sign. ui the behalf or Discovery DJ Services LLC. Ptrr the Company agreement r- "The Board may assiim titter to particular Officers. Unless the Board decides otherwise, if the title of an Officer is one commonly Used for office uS a business corporation formed under the Taus Business Otgsrdzutions Code (or any sumnisur siatttc), the assignment of such title shall Donstitute the delegation to .such Gillum of the authority and duties that are nur. ally associated with that office, subject to any specific delegation of authurity and duties made to such Officer by the Board." Cury has been delegated by the Boat the title of Executive Vice President, Operatiutti. Thanks fur your time. und consideration. If you Imwe any questions please .pct free Lu contact me directly at the extension 105 via office number listed below. Michael B. Davis President Co:Cury Jordan Discovery Miditrearrn Partners Dh1 ovtry Miesrre rn Partners. 17859 Walnut Hi I tare, suite 335 Dallas, Tx 75230 1 214 414.19013 1 DPI`. t t°'o1 741 ‘;'-q Samuel Engineering DEPARTMENT OF PLANNING SERVICES 1555 N 17th AVE GREELEY, CO 80631 PHONE (970) 353-6100, Ext. 3540 FAX: (970) 304e6498 AUTHORIZATION FARM represent Discovery DJ Services (A,geritiApp lira rat) located at Parcel 147111000009 (Owner) for the property LEGAL DESCRIPTION: SEC 11 WIN oiNorth RNG 66 West SUBDIVISION NAME: LOT BLK I can be contacted at the following Home 303-71x4-4840 Work 303-561J537 Email: rmskeIskey@samuelengrneeringrear The property owner can be contacted at the following Home 21404144 980 Work 214414-1980 Email: cory©discoverymicistri"eam.corn Correspondence emailed to: rx Agent/Applicant (Chick one) DATE b - OWNER'S SIGNATURE Property Owner DISCOVERY DJ SERVICES, LLC FT. LIPTON DISCOVERY GAS PLANT PHASE II PROJECT NUMBER: 17007-01 DATE: AUGUST D1, 2017 USR APPLICATION Rev. 2 Page 2 of 10 1.0 PROJECT DESCRIPTION Discovery Di Services, LLC (Discovery) is in the process of expanding operations in Weld County, Colorado. The expansion project will include expanding the existing Discovery Gas Plant with several compressors and interconnecting pipelines for the purpose of gathering raw natural gas and preparing it for compression and insertion into commercial sales pipelines. This development plan and Use by Special Review application only addresses the expansion of the existing Discovery Gas Plant. Additional USR permit applications will be submitted for any future compressor stations, pipelines and associated facilities. The existing Discovery Gas Plant is located North of and adjacent to County Road 10; West of and adjacent to County Road 35 Section Line, approximately one mile southeast of Fort Lupton, CO, and approximately 2 miles north of Lochbuie, CO in central Weld County. The site address is to be determined. The size of the property, (Parcel # 1471-11-0-00-oog — 243 +1- acres), will be reduced in area to reflect the proposed area associated with Lot B of a pending recorded exemption and will have a separate address. Lot B consists of 132.52 acres pending a Recorded Exemption. Discovery intends to construct the proposed expansion of the additional natural gas processing equipment during the 4th Quarter of 2017. Ten full-time employees are to be employed at the Discovery Gas Plant I. No additional employees will be required after this new equipment and expansion is completed. The plant will continue to function 24 hours a day, 7 days a week, year-round. A commercial well and a septic system was installed when the original gas plant was constructed to accommodate post - construction water and sewage. A future control room and maintenance shop are shown in the northeast corner of Lot B, if constructed a separate commercial well permit and septic permit will be applied for to service these buildings. After construction is complete in the Autumn of 2018, there will not be additional traffic expected as part of the expansion of the existing Discovery Gas Plant and the temporary construction access from CR 35 will be utilized for plant operations only. Di Discovery Services as part of this application has submitted a two lot Recorded Exemption application per their business model to split off the permitted and proposed improvements onto separate parcels. All items presented in this application are preliminary and are subject to change until final design is complete. 1.1 PROJECT OVERVIEW Phase II of the Fort Lupton Discovery Gas Plant will expand the capacity and will enhance the efficiency and quality of the current natural gas being processed. This plant is a cryogenic processing plant facility where natural gas flowing from wells is cooled to sub -zero temperatures Samuel Engineering DISCOVERY DJ SERVICES, LLC FT. LUPTON DISCOVERY GAS PLANT PHASE II PROJECT NUMBER: 17007-01 DATE: AUGUST 01, 2017 USR APPLICATION Rev. 2 Page 3 of 10 in order to condense liquids or NGLs (natural gas liquids). These can include butane, ethane and propane. Typically, a plant separates NGLs from natural gas by chilling the gas stream down to around -120 degrees Fahrenheit. This allows a blended liquid hydrocarbon feedstock to be collected which then is fed into a fractionation plant that finishes processing the liquid hydrocarbon or 1 Grade into high purity propane, butane and natural gasoline. Produced water and natural gas condensate collecting in the 12 -inch low pressure pipeline and front end of the gas plant will be delivered into atmospheric tanks, where the produced water and condensate will be separated and trucked off -site for sale or subsequent disposal in accordance with federal, state and local regulations. 2.0 USE BY SPECIAL REVIEW QUESTIONNAIRE Planning Questions 1. Exploin, in detail, the proposed use of the property. Discovery Midstream is expanding an existing 60 MMSCID gas plant located in Weld County, Colorado, the site for Phase II is located east of Phase I construction. Phase 1 is on new Recorded Exemption Lot A and Phase II is on new Recorded Exemption Lot B and will be permitted under separate land use USR permits. In general, Phase II of the plant will be considered independent of the previous phase. The physical exceptions to this are the inlet pipelines and liquid storage. The existing 12" line will be intercepted to flow into Phase I1 along with a new (yet to be sized) line. Due to the proximity of the two plants, the permitting will be revised to include Phases I and II under one permitting entity. Phase II of the gas plant was added to address the midstream component and not restricting the upstream component due to the production of vertical and horizontal well activity in the field. Phase II will consist of two pipelines with four vessel -style slug catchers, stabilization, an amine unit, a cryogenic unit with a molecular sieve and refrigeration packages, and residue gas compression. Plant utilities will include: fuel gas, hot oil, methanol injection, instrument air, liquids storage and fired destruction units, A TEG dehydration unit will be designed for future installation, if needed, and included in the revised environmental permit. Most of the equipment will be horizontal or close to ground level. The exceptions to this are the flare at 170' maximum height, the cryogenics tower at 140' maximum height, the stabilizer tower at 70' maximum height and the molecular sieve units at 50' maximum height. The property line for the Phase II plant is a minimum of 1200 feet from the closest residence. The plant equipment is located an additional 500' west of the property line and 1700 feet from the nearest residential property. The plant flare will only operate during maintenance operations and in emergency pressure relief situations. Maintenance activities for the compressors are expected once per month Samuel Engineering We Picttlor Sprurirns DISCOVERY DJ SERVICES, Lit FT' LUPTON DISCOVERY GAS PLANT PHASE II PROJECT NUMBER: 17007-01 DATE: AUGUST 01, 2017 USR APPLICATION Rev. 2 Page 4 of 10 for 30 minutes or less. Emergency pressure relief events are seldom and cannot be predicted. Each line entering the facility will have its own pig receiver. Although the anticipated maximum gas flow is 245 MMSCFD, four (4) slug catchers will be over -sized for maximum total flow rate of 300 MMSCFD of gas and 27,000 BPD of liquids. Gas from the slug catchers will be metered and then combined prior to treatment in an amine system. Liquids from the slug catcher and the closed drain system will be treated in a stabilizer unit with operational flexibility to produce a y -grade product or a condensate product routed to storage tanks or pipeline sales. On the gas side, the first processing unit will be an amine system to reduce CO2 content from the inlet gas stream. Valves for a future TEG dehydration system will be provided after amine treating. Mole sieve dehydration will then precede a cryogenic plant. Compressed residue gas will be routed to the sales pipeline and metered. NGLs will be sent to a NGL header, metered and transported via pipeline. Liquid drop -out will be routed to the closed drain system. The 10 -acre laydowri yard that was used for pipeline and phase I construction will be abandoned and reclaimed matching surrounding vegetation. A temporary equipment staging area for phase II construction will be inside of the site security fence and will only have equipment in the area during construction. There currently are no plans for future expansion for a Gas Plant III with Gas Plant II being the last proposed site Improvement. There currently are no plans to develop the 80 -acre parcel adjacent to Buffalo Ridge Estates and this parcel will remain as native grasses. The construction of the discovery Fort Lupton Gas Plant Phase II is critical infrastructure needed to move gas out of the County. 2 Explain how this proposal / consistent with the intent of the Weld County Code, Chapter 22 of the Comprehensive Plan. Section 22-2-10(D) of the Weld County Code states that "extraction of natural resources is an important part of the economy of the County.► The proposed compression and processing facility will contribute to the expansion of the county's industrial economic base by providing increased capacity for future marketing of oil and gas production in Weld County. Additionally, Section 22-5-100 (A) states that a County goal is to "promote the reasonable and orderly exploration and development of oil and gas mineral resources." The proposed facility is consistent with this section in that the proposed site is within agricultural land, and is clustered close to other oil and gas facilities. Per Chapter 22, oil and gas facilities are allowed as a use by right in the A (Agricultural) Zone District. However, oil and gas storage facilities, oil and gas support, and associated services require a Use by Special Review (USR) permit in Weld County. Samuel Engineering DISCOVERY DJ SERVICES, LLC FT. LUPTON DISCOVERY GAS PLANT PHASE II PROJECT NUMBER: 17007-01 DATE: AUGUST 01, 2017 GSR APPLICATION Rev 2Page 5of10 Section 22-2-20. G.2. A. Policy 7.2 states "Conversion of agricultural/and to nonurban residential, commercial and industrial uses should be accommodated when the subject site is in an area that can support such development, and should attempt to be compatible with the region 7 The land that Discovery Di Services, LLC is proposing to utilize for the gas processing plant is on dryland l a nd grasses that is located in a semi -rural area where there is a significant amount of oil and gas activity already occurring. Section 22-5-100. B.OG.Goal 2. states "Ensure that the extraction of oil and gas resources conserves the land and minimizes the impact on surrounding land and the existing surrounding land use." 3. Explain how this proposal is consistent with the intent of the Weld County Code, Chapter 23 (Zoning) and the zone district in which it is located. Section 23-3-10 indicates that uses that are "more intense and have a potentially greater impact!+ are permitted within the A (Agricultural) zone district. The operation of a processing facility for oil and gas operations while minimally intrusive is more suited for less densely populated areas such as the proposed site. In addition, the parcel currently has oil and gas production and other associated oil and gas infrastructure on the property and within close proximity of this property, Section 23-3-40 also indicates that oil and gas support and service facilities are acceptable as a Use by Special Review within the district. Citing the Weld County Code, Section 23-3-40.A.2 provides for a Site Specific Development Plan and Special Review Permit for Mineral Resource Development facilities, including, Oil and Gas Support and Service, Natural gas processing facilities, related equipment and structures; Section 23-3-40.A.7 for Transloading; Section 23-3-40.S for outdoor equipment and materials storage yard and Section 23-3-30.K for two or more Cargo (Conex) Container(s) in the A (Agricultural) Zone District. 4. Describe what fond uses surround the site. Explain how the proposed use is consistent and compatible with surrounding land uses. The surrounding parcels can be classified as mixed use with agricultural, commercial, Industrial and residential properties on the surrounding parcels of the proposed site. The subject property has existing and under construction oil and gas production infrastructure. Adjacent parcels in all directions have some type of oil and gas infrastructure currently operating. The proposed Discovery gas plant site is located in a rural area of the County where there is generally limited residential development, predominantly to the east, Buffalo Ridge Estates subdivision and to the north with residences located on large agricultural parcels; on site and in all directions, there are several similar uses associated with oil and gas development, including pipelines, well heads and tank batteries. Also to the north is BOSS Compost permitted under USR-1190 for a vegetative recycling business; and to the south is the Dougan Compressor Station for Kerr-McGee OnShore, LP (4MUSR17-81-4&8). New Samuel Engineering Salul/nni DISCOVERY Di SERVICES, lit FT. LUPTON DISCOVERY GAS PLANT PHASE II PROJECT NUMBER: 17007-01 DATE: AUGUST 01, 2017 USR APPLICATION Rev. 2 Page 6 of 10 inbound pipelines, (USR-16-0028) will bring the natural gas to the plant, process the gas and transfer the product to an outbound pipeline to market. While construction of the site will generate some impacts because of the extra activity and trips to the site, once it is constructed and fully operational limited gas truck traffic will be present from the facility. Natural gas will be transported to markets via Front Range Pipeline and the Enterprise interconnects. 5. What are the hours and days of operation? The hours of operation for the facility will be combined with Phase I and will be 24 hours/day, 365 days/year. 6. List number of full time and/or part time employees propose to work at the site. There will be approximately 1-10 full-time employees working at this site. Two shifts per day are anticipated. 7. If shift work is proposed include number of employees per shift. The day shift will have approximately 6-8 full time employees, followed by a night shift with a 2-3 employees. Shift hours have yet to be confirmed, but a typical shift rotation may be 6 a.m. to 6 p.m. 8. List Number of people who will use the site. Approximately 6-12 people per day, including full time employees, contractors and third party truck drivers. 9. List number & type of animals There will be no animals on site. 10. Describe the type of lot surface and the square footage of each type. Phase II total disturbed area will encompass approximately 45 acres, 1,959,800 square feet including approximately 10 acres directly south of the proposed plant site designated as a temporary equipment staging area. No asphalt or additional landscaping is proposed inside of the fence lines. Gravel or roadbase will be placed inside the fenced areas covering approximately 1,325,000 square feet, ditches will be bare ground with gravel on steep slopes covering 125,600 square feet. The remaining 507,200 square feet will be replanted with native grasses. 11. How many parking spaces are proposed? During operations, no more than 15 parking spaces will be required for site personnel. During construction, all parking will be limited to the inside of the site fenced areas. 12. Explain the existing and proposed landscaping for the site Samuel Engineering DISCOVERY DJ SERVICES, LLC FT. LUPTON DISCOVERY GAS PLANT PHASE II PROJECT NUMBER: 17007-01 DATE: AUGUST 01, 2017 USR APPLICATION Rev. 2 Page 7 of 10 Landscape and screening plans for the site are being developed with a request for comments from the adjacent property owners. Suggestions from meetings with the Buffalo Ridge HOA are being considered for the final landscaping plans for the site. A 6 -ft tall berm running north to south along the eastern site boundary is being designed with some spruce type trees proposed for screening. Discovery intends to get renderings of the berm to the HOA and also send these to the adjacent homeowners. Additional follow-up meetings with the HOA to be determined. 13. Describe the type of fence proposed for the site. The fence will be standard 6' chain link fence with 3 strand barbed wire top matching the fence installed for Phase i. A Landscape and Screening Plan will be developed with a request for comments from the adjacent property owners. 25-yr decorative slats for the fence may be proposed as screening, 14. Describe proposed screening. A Screening Plan will be developed with a request for comments from the adjacent property owners. 15. Explain proposed reclamation procedures. There is no intention of ceasing operations of this facility once it is operational, however if the plant is deemed obsolete, the plant closure will follow all Federal, State and Local (County) regulations. All post construction areas will be reclaimed with native grasses. 16, Who will provide fire protection. Fort Lupton Fire Protection District will provide fire protection for the site. 17. List proposed on -site and off -site improvements associated with the use ond timeline when improvements will be completed. No offsite improvements are proposed as part of this project. Onsite improvements will include perimeter fencing for the facility, and gravel roads on the property to access the facility. Construction activities are expected to begin following receipt of the applicable federal, state, and local permits and will last approximately 3-4 months. Construction is expected to begin in the 4th Quarter of 2017. Restoration of the site and final clean-up will begin immediately following completion of construction activities expected to be around August 2018. Engineering Questions 1. Describe how many rrouna'trips/day are expected for each vehicle type. During construction, semi -tractor trailers will be used to haul equipment and Samuel Engineering swoons DISCOVERY Di SERVICES, LLC FT, LUPTON DISCOVERY GAS PLANT PHASE II PROJECT NUMBER: 17007-01 DATE: AUGUST 01, 2017 USR APPLICATION Rev. 2 Page 8 of 10 materials to the site, along with passenger cars/trucks for site workers and construction management. Following construction of the facility, during normal operation, the following vehicles are anticipated to access the site: Passenger Cars/Pickups (approximately 15-20 round trips per day) and 200 bbl. Tanker trucks/tandem trucks (approximately 2-3 round trips per day). 2. Describe the expected travel routes for site traffic. Traffic will access the site mainly from Colorado Highway 52 to Weld County Road 35. Some smaller vehicles will use Weld County Road 12 to access CR 35. Both CR 12 and highway 52 are north of the site, CR 35 is east of the site. Highway 52, CR 12 and CR 35 are asphalt paved roads. 3. Describe the travel distribution along the routes. Trucks and delivery vehicles will use highway 52 to CR 35. 20 percent of traffic of which will be passenger cars, pickup trucks and small delivery vehicles will use CR12 to CR35, 4. Describe the time of day that you expect the highest traffic volumes_ There will be two operators on site for the night shift and five personnel on site for the day shift. Traffic may slightly heavier in the morning around 8 am when the shift change takes place. 5. Describe where the access to the site is planned. The access to the site is a single access and is permitted through Phase I with Permit AP16- 00371. 6. Drainage Design with Detention Pond Design. A stormwater detention pond will be required for this site that will include the stormwater release from Phase I. The drainage report and detention will follow all requirements of the stormwater drainage code located under Chapter 23, Article 12 Storm Drainage Criteria. The detention pond will be designed following the above code and Urban Drainage Flood Control District criteria for a Non -Urbanizing Drainage Area and will retain the 1 -hour 100 - year storm with the release rate for the 1 -hour 10 -year storm events. A narrative with the preliminary drainage concept described is attached to this document, Environmental Health Questions 1. What is drinking water source on the property? Samuel Engineering SOfinial-it DISCOVERY DJ SERVICES, LLC FT. LUPTON DISCOVERY GAS PLANT PHASE II PROJECT NUMBER: 17007-01 DATE: AUGUST 01, 2017 USIA APPLICATION Rev. 7 Page 9 of 10 Drinking water will be from the well permitted with Phase I. Permit number 303055. 2. What type of sewage disposal system is on the property? A septic system is proposed for Phase I and will be the source of sanitary on the site A septic permit will address the effluent flows; permit number SP -1700178. 3. Is storage or warehousing proposed? The majority of storage will be located on Phase I in the shop and control room buildings. The following materials are expected for a plant of this type: 1. Heat Transfer Oil 2. Lube Oil 3. Methanol 4. Ethylene Glycol 5, Grease All chemicals/oils will be stored and handled as per the guidance provided on the Safety Data Sheets (SDSs). Any liquid wastes will be temporarily stored in a container approved for that waste. Any solid wastes {i.e. used oil filters) will also be temporarily stored in containers approved for the waste in question. Clean Harbors (cleanharbors.com) or a similar third party waste recycling/disposal service will be used to recycle or dispose of all chemical/oil wastes as required by state and federal regulations. 4. Describe where and how storage will occur on this site. During construction conex containers will be needed for contractor's materials and equipment storage, it is expected that 20 of these containers will be needed at the peak of construction. On -site contractors will also require construction trailers with 15 of these expected to be required at the peak of construction. These are temporary and will be removed after construction is complete. 5. Fuel Storage information. Fuel will not be stored on site in quantities greater than 5 gallons; the facility will operate using a small portion of the inlet gas as fuel for the inlet compressors, for burners within the process train, and for the flare. 6. Vehicle Washing and containment. No vehicle washing is proposed for this site. 7. If there will be floor drains indicate how fluids will be contained. Samuel Engineering in . 5alurlarrs DISCOVERY DJ SERVICES, LLC FT. LUPTON DISCOVERY GAS PLANT PHASE II PROJECT NUMBER: 17007-01 DATE: AUGUST 01, 2017 USR APPLICATION Rev. 2 Page 10 of 10 Floor drains are not proposed. 8. Indicate if there will be any air emissions. SWCA Environmental Consultants has applied for all necessary air permits and these are currently under review, Expected approval of the permits is November 2017. 94 NIA 10. N/A Building Questions 1. List type, size and number of existing and proposed structures. Phase II will have a compressor building and 4 separate MCC buildings totaling 40,000 square feet. Phase I at the time of this document has no erected buildings. Phase buildings are listed and described in USR16-0031. A lighting plan with a photometric study will be provided with the building permit applications. Except for emergencies site lighting will be downcast and shielded. Individual switches for each area of the plant will be installed to limit lighting to areas requiring service or maintenance. A noise study was prepared for Phase l and will be updated to incorporate phase II equipment. The study will be conducted by Barrens & Associates, Barrens & Associates has baseline information for conducting the study. Miscellaneous Neighborhood/Community meetings with Buffalo Ridge Estates Home Owners Association were held on June 21, 2017 at the Hampton Inn in Brighton Colorado between 6:00 and 7:30 pm and on July 31, 2017 at the Fort Lupton Recreation Center between 5:30 and 8:30 pm. A follow-up third meeting was held September 6, 2017 at the Fort Lupton Recreation Center, 5:30 to 7:30 pm. Minutes are attached to this application. Discovery Services currently has signs posted and has employed a guard stationed at the entrance to the site to prevent construction traffic from traveling through the Buffalo Ridge Subdivision. Samuel Engineering VS sarutrons FOR COMMERCIAL SITES, PLEASE COMPLETE THE FOLLOWING INFORMATION BUSINESS EMERGENCY INFORMATION: Business Discovery DJ Services Name: Phone: 214414-1980 Address: 7859 nWalnut Hill Lane, Suite 335 City, ST, Zip: Dallas, TX 75230 Business Owner° Same Phone: Home Address: City, ST, Zip List three persons in the order to be called in the event of an emergency: NAME es.,3rm1/4 TITLE .- rg.an n kw; D D:E r �' rJr'' ik tit 33 \kx;1 T •70.2..30 Er,nec; 0 rir eta zsirt. rtk chh.nv \ Ollei(if 0 'mil ft- s ,1-e _Cflinv )6- It Business PHONE r-Sic6 31 7), -1. (4) 4174 - ,. - \. 71 ricTi -;527 Hours: 24hours/clay Days: 365/year Type of Alarm: None Burglar Name and address of Alarm Company: TBD Location of Safe: N/A Holdup Fire Silent Audible Ftd- FFi i!xFils- moo ithill itIt4A-1**3#4 iri titr*irk*********tt*lk**********ir*************ak*****k****itik*****tk*#*i+*****fs**4****tM***** MISCELLANEOUS INFORMATION: Number of entry/exit doors in this building:,2 gates Location(s) TBD Is alcohol stored in building? NO Location(s): Are drugs stored in building? NO Location(s): Are weapons stored in building? NCI Location(s): - _ The following programs are offere a pubpublic service of the Weld noun riffsOffice. Please indicate the programs of interest. ❑ Physical Security Check Crime Prevention Presentation UTILITY SHUT OFF LOCATIONS: Main Electrical: Motor Control Center Gas Shut Off: At enterprise connections Exterior Water Shutoff: N/A Interior Water B h utoff : NIA WELD COUNTY ACCESS PERMIT Weld County Public Works Dept. 1111 H Street P.O. Box 758 Greeley, CO 80632 Phone: (970) 304-6495 After Hours: (970) 356-4000 Emergency Services: (970) 304-6500 x 2700 Inspection: (9701 304-6480 Permit Number: AP16-00371 Issuance of this permit binds applicant and its contractors to all requirements, provisions, and ordinances of Weld County, Colorado. Project Name: USR16-0031, ZPMH17-0005 Applicant Information: Name: Cory Jordan Company: Discovery DJ Services, LLC Phone: 214-414-1980 Email: cory@discoverymidstream.com Location: Access is on WCR: Nearest Intersection WCR: Distance From Intersection: Number of Existing Accesses: 35 35 0 Planning Process: USR ZPMH 17-0005,USt & WCR: Eagle St. Road Surface Type & Construction Information: Road Surface: Asphalt Culvert Size & Type: 15" CMP/RCP miry. if req. Start Date: Finish Date: Materials to Construct Access: Class 6 Road Base Feq ired Attached Documents Submitted: Traffic Control Plan: No Certificate of Insurance: No Expiration date: Property Owner Information: Name: Company: Alliance Investment Group - Fort Lupton Phone: 480-980-0060 Email: jsimonton@alliance-ig.com Proposed Use: Temporary: Single Residential: Industrial: Small Commercial; Oil & Gas: Large Commercial: Subdivision: Field (Agricultural Only)/Exempt: d Access Pictures: Yes A copy of this permit must be on site at all times during construction hours Daily work hours are Monday through Friday DAYLIGHT to % HOUR BEFORE DARK (applies to weekends if approved) Approved MUTCD traffic control/warning devices are required before work begins and must remain until completion of work Special Requirements or comments Parcel 147111000009. Utilize existing access point on CR 35 (1 -Industrial) located adjacent to the intersection of Eagle St. and CR 35. ZPM H 17-0003 & 7P M H 17-0005. Revised 2/28/17. Approved by: Weld County Public Works Date: 2/28/2017 Print Date -Time: 2/28/2017 1:39:28PM Access Permit PW008 Page 1 of 1 A preliminary neighborhood meeting was held at the Hampton Inn in Brighton on June 21, 2017 Below are the subsequent HOA Meeting Minutes Buffalo Ridge HOA Meeting 7/31/2017 Meeting Notes introductions Presentation Questions & Comments Held Fort Lupton rec. Center Phase 1 vs Phase 2 a. Phase 1 has two parts. Phase 14 (20MM MRU) will be starting up in August 2017 (there has been a delay with the building permit for the buildings that enclose the compressors). Phase 18 (40MM cryo) will undergo construction immediately following. Phase 2 (200MM cryo) will has a target start-up summer 2018. Why did Discovery choose the location for the plant a. Proximity to both gas and NGL transmission lines. The plant location is h'243 acres, only a fraction of it will be used. The rest is a buffer between the facilities and homeowners. Timeline for new Lay Down yard a. All pipe to be delivered will be moved to the new lay down yard. Additionally, much of the material for PhaselB plant will be staged at the new lay down yard before being transported to the site. All pipe that is currently at the existing lay down yard will stay there until needed for construction. What is visual impact of compressor buildings a. Building height will be approximately the height of the coolers, maybe slightly lower. What kind of noise will those compressors make? a. 3516/1508 compressor engines. In a building. 55dB during the day, 50 at night. What guarantee will we have on sound assurances beyond the basic legal requirements? a. The predictive noise model will help clarify this. We also did several million dollars of dirt work to keep it the facilities at a lower elevation. We're doing sound -proof on the buildings. Mark/Jennifer Broda - Backup beepers at night that runs constantly around 9pm. Mechanics working on heavy equipment. Waking up Jennifer's baby a. We will work with construction to make any driving path with as much forward motion as possible. [NOTE we have followed -up on this] Adam/ Mark/Darren - 1) who is the realtor that you bought the property from? 2) how is the plant improving property value over the years? I understand that societally we need these plans, but it's hurting property values locally. I feel like my nest egg is jeopardized. a. Bought property from Alliance Investments. Can't make a prediction on its impact on property values. Nancy - how does a project like this get approved and almost built without neighborhood notification? Mark - original notification was for a smaller parcel on the West portion of the property. It wasn't as objectionable as what currently is being built. Adam - frustrated that they weren't feeling like they were notified. Went from 60 MM in one location to 260 MM total with the addition of the Phase II location. a. Weld county preferred northern location because the road was paved [CR 35]. It's difficult to decide where to stop notification. We did the notification per the requirements of Weld County Torn - Where is the requirements for notification on environment? Lights/noise/etc? You did the minimum despite knowing that there was a subdivision that would be impacted. a. Phase 2 - Followed Weld County regulations. The front row of houses on the HOA was also notified, as they would be impacted the most. Torn - received a postcard sized notification a. That was from Weld County. Discovery's was more substantial. Torn -The existing "No Access" sign is inadequate. It feel like the neighbors have to complain before anything gets done. a. We don't always know there's a problem until we get a complaint, especially at the higher levels of management. Drivers have been fired for going through the neighborhood. Tom - HOA should have been notified as an entity, not just the property owners. This is going in a direction that I don't want it to. We're going to protest until Discovery makes more concessions. Rory - no notification until Phase 2 for who to talk to. Adam - walked on site to find somebody in charge, but nobody was available. Couldn't find who was in charge and had to call Weld County to find anything. a. Most concerns weren't brought to the forefront until recently. Rory - I previously had asked for a model of the plant. a. Much of the model wasn't complete. We can provide Torn - I heard there would be other towers. Where are they in the photo? a. Some poking up over the hill Tom - Clarify that the photo is realistic. a. It is. Model is projected onto the photo. Tom - Can you control when you burn? a. You will see a flare only in upset conditions, which is rare. You will not be able to see pilot light flare. Ed - Weld County said there would be no visible flare for Phase 2. Under the impression that there will be no open flames. a. Would be impossible to have an enclosed flare for Phase 2. Ed - what about sound regulation on phase 2? a. It's the same. 55dBa during the day. This is for the total site contribution, and looking at worse case situation. Hank - Doesn't OSHA require ear protection for 80 dBA? a. Yes. We won't be that loud. Average at this meeting has been -60 dBA Mark - my property is 25 ft from the fence line. Will the noise be this bad? Significant amount of noise for the rest of our lives. a. We are doing a predictive noise study from Behrens. Very likely it will be down in the low 40s Mark - I will never be able to look on my back porch and see the stars in peace again. The ecosystem has significantly changed. Less deer, less coyotes, less pheasant. On top of that, if there's a high decibel level, that will make things worse. a. Much will change post construction, once the activity dies down. Nancy - What permits are you waiting on for Phase 2? a. USR has not been submitted yet. The process is Submit --> county review --> public comment --> response from Discovery --> additional comments --> Planning Commission-->BOCC for review. Nothing has been scheduled yet. Ed - There will be no glowing lights on property? a. Only for an upset "rare41 situation. No daily continuous flame every day. Tom- Explain rare with a little more detail. a. Hard to put numbers. Flare went off at a previous project a few days a year. Tom - for reference, compared to 1100 ft cell tower, what are tower heights. a. Closer to 120'-140'. Power lines roughly 100' Adam - How many structures over 100'? a. Demethanizer and communications tower. Not the 6-7 worst case scenario we originally said, Rick - 50 dBA is similar to a Harley Davidson with an EPA approved muffler going down the road. You'll be able to hear it. You've just annihilated the view of the mountain. Why provide a picture? a. We were asked to provide a picture. Nancy -We did not get a card in the mail. a. We notified the top row. Our information is off the tax information. Mike - We should notify everybody down County Road 37. Dust will affect them with prevailing winds. We would like to see Phase 1 in operation before continuing on to Phase 2 if we don't like it. If we don't like the 60MM we definitely will not like the 200M M. a. Understood. The community will have the opportunity to speak at USR meeting. Ed - is gas being injected with odor at plant? If there's a problem at the pipeline, would anybody be able to smell? If you have to use the flare, what goes to the flare? The plant is processing gas without odor and putting it back into the system without odor. Natural gas could sweep downwind into community. a. There's a measurement system. If balance is off, plant shuts down. If we overpressure, the safety relief system will vent it. Heavier gasses will go to flare from safety systems. Station is manned 24/7, and the operators will be monitoring everything. Ed - If there's a gas break, nothing will go into the ground? a. No. How much does Lancaster process? We would like to know the location of comparable facilities. a. Around 500M M. They also have other facilities. We will provide address of similar facilities. Mike - is there any guarantee there won't be a phase 3? a, Can't guarantee it but it is not our intention. We are looking out west. Hank - you work for Discovery. Would you want to buy it and life there the rest of your life? a. Family had property with O&G facilities. No royalties. What's in it for our community? What are you bringing to the table that enhances the neighborhood? What are you bringing to the table? We're expecting to lose 16%-20% of our property value. a. Let's finish the presentation first. Then tell us what you want. Let's talk about the recent steps we've taken, including moving the lay down yard. We want to hear what you need and what a path going forward looks like for you. b, Steps we're taking: 24/7 security at entry. Developing written policies and procedures for security and trucking companies. Tried to get Weld County sheriffs for security, but that wasn't a possibility. We will look into state police. Mike - Problem with trucks making a turn on 52. High traffic road with big trucks nearly having to stop in the middle of the road. a. Google and M apquest direct traffic through your neighborhood. It puts us in a bind. Difficult to effectively communicate and enforce. Ed - trying to push for stop signs/weight limits a. Security telling truck traffic to not go through the neighborhood, drivers getting fired. NA.Truck nearly getting stuck. Guys up front (laydown yard) not willing to help, What's the solution? Why do people leaving your facility think they have the right of way over that road? It's a private driveway, they have to yield. a. What are the possible solutions? We're paving the road, will paint and repaint. Signs are out. Put a stop sign on our property. Maybe a sign saying no access into driveway. On 35 and 12. Going slow on Discovery property but speeding through neighborhood. a. Difficult to enforce. Google says go through your neighborhood, Christy - make sure temporary companies have the instructions, a. We employ Elkhorn, H2. Can't control who they hire or their enforcement. Adam - Thank you for trying to mitigate concerns. 20 line items that have to be met to keep USR. Multiple violations of USR. Phase 2 is much bigger. Concern is that I am spending the rest of my days complaining about noise/traffic/lights/etc. We're sick of it now, things are going to get worse, I appreciate you listening but there are still problems. 60 to 20O is too big a jump. a. The biggest part is the construction. Adam - and the sound and the lights? a. We will have another meeting after we've received the predictive models. 1-2 operators on shift [in the control room], At most, 5-10 pickups a day coming out. I tanker truck a week {estimate) Much of the concerns end with construction. Phase 2 will not be approved until after Phase 1. Let's get a baseline, which will be difficult because Phase 1B is currently under construction. Phase 2 will not be approved until after Phase 1B is under construction. Ed - at this point, community has a hard time giving a blessing without knowing what Phase 1 will be, Tom - We have different perspectives. Our opportunity to stop it is now. Our window is drying up. a. How about we submit Phase 2 now, but there can be a stipulation that we don't get approval until Phase 1 is running after construction for 30 days, Tom - understand that it's a difficult position as a business, but what do we do? Nancy - we have to write to our Weld County commissioners and let them know what the problems are. Ed - This is a community of hard-working people who love living where we are. Many are here to retire. Been here for not that long, and now there is an entity coming in that's infringing on our lives. Mike - none of us thought they would allow industry this close to residential areas. Ed - show me another facility that has been close to residential property. a. Weld County is No. 1 producer of oil and gas in the state. Facilities will inevitably be built in the area. We are listening to what we can do to help mitigate your concerns. Mike - wait to apply for Phase 2 until Phase 1 is done and settled. a. This creates problems for the rest of the community, Neighbors around don't want trucks for existing wells. Not all the pipeline is built, b. Probably we will have to submit the paperwork. We can communicate the timeline to the neighborhood. Norman - is there somebody on your team that can do a market analysis on the property values from the neighborhood. a. It is unlikely you would want it to come from us. You need something independent. Adam - If you did, would you get some of the property values loss of equity? a. We want to be fair, but where does it stop? Not everybody will be affected evenly. How do you prorate it across the community? Tom - Not that difficult, CPIs, market analysis across the road. I can substantiate the loss and would want to be compensated. a. True, but you can always find somebody who is looking to take advantage of the system. Welcome to get 3 third party appraisals, so we can measure high/low. Leo - I haven't even moved in! I would like guarantees that none of us are getting slammed. What does the community get out of it? a. What do you want? Tom - we're sitting in this rec center that was purchased by oil money. Christy - but it wasn't in their back yard. Look at the gas plant on 22 - nobody would build around it, and there aren't any existing houses around it. This is affecting our quality of life. Do you guys have to post a bond in case of accident? a. We do during construction. Will have to verify for operation. We do have insurance. When we submitted for our Operator ID, they needed an operations bond. COGCC requires it, need to verify amount. [NOTE: copy of bond and amount sent to Ed Engle] Rory - difficult to know how our lives will be affected 3-5 years down the road. Noise values similar to a dishwasher. a. Right here in the room is close to 40 just from the air conditioner. What will be generated won't be regulation max. Need study to verify the numbers. Assume in the low 40s, if that. Based on a 1 hour average, in less than 5 mph winds. Right now, you don't notice the HVAC. Intermittent noise (pipe clanging, for example) must be lower. There's a big difference between intermittent and steady state. Plant will adhere to COGCC requirements. Rory there's a constant noise from existing plant. How to know what's coming from where? a. Existing plant not required, but they are agreeing to follow existing noise statutes for Weld County. Oil and Gas statute on special use permit. Adam - exempt during construction? a. Construction typically falls into general zone (no difference between industrial/residential/commercial) converts to temporary restrictions. 80 dBA at day, 70 dBA at night. Looking at average times, not intermittent. b. Colorado noise statute - have to take into account other noise contributors. (dogs barking, etc) listen to audible to take into account background noise/other facilities. Predictive model will show within 1 dBa at a sample point to verify. Rory - so if you can put it on paper that that it's within tolerance, there's nothing I can do? a. We will know if we're out of compliance once the predictive model is done. Nathan - any landscaping options to reduce noise? a. Absolutely. Weld County will lead the charge. We would also like to hear community suggestions. Definitely on the table to take action. Cynthia - what's going to be in the air? Pollution concerns a. There are air permit requirements that we adhere to. CDPHE permit. Quarterly, bi-annual, annual testing. Number of different testing standards, similar to your car. Quad -J emissions, Quad -0 EPA regulation for leaks, CO Reg 7 for methane. Cynthia - will we smell anything? a. No. Mark - exhaust from compressors? a. No, I've never smelled anything. Additionally, compression in Phase 2 is electric. Ed - DCP plant has flare on for hours/days a. Very old facility, flare is not enclosed. Rory - what are 7 trailer permits for? a. Associated with contractors and laydown yards. Going away as the laydown yard is moving. All temporary for construction and storage. Permanent building is out there now. There will be another building with the 200MM plant. Mike - how high is the tallest thing you're going to construct out there? a. Still to be determined, but likely will be the flare. Demeth tower around 120'. Flare will be under 160' Rory - Valley is so quiet at night that the worst disturbance is at night. a. Goal is to assess the nighttime noise. Regulatory allowance for the day is 5 dBA higher than night, but the plant noise will not fluctuate between day and night. Is noise mainly from the compressor? a. Yes - there are multiple noise sources just from the compressor. We take the actual field measurements and provides propagation out. This considers surrounding land features, environment, etc. The study is compared to the code. If it's close then the site plan is revisited. Phase 2 is all electric driven compression. Additional compressors don't linearly affect the noise (a second compressor won't double the noise of the first, for instance). Packing, Purging and Start Up expectations: The first step is to bring gas into facility. Purge gas into front of plant. Start individual subsystems (IA, 1O, etc). We will have monitors and sensors to ensure the purge. We purge to prevent having air and natural gas in the pipeline. All activity will happen during the daylight hours. 7-7 roughly, for safety reasons. First we purge remaining portion of pipeline, then move on to the pipeline. It's a slow process to ensure that the oxygen is out of the system. The lines inside the plant will be less, but there are several lines. Propane system will have a vacuum to remove moisture. Adam - do we need to evacuate the neighborhood during any of this activity? a. No, not at all. Noise will be s4o dBA. Similar sound to an air compressor sound at the most. Hank - Opportunity to contact state patrol for road security. a. Great idea. Will contact. Action Items a. Backup beeper b. Photos - anybody who wants photos taken from your vantage point on a clear day, so we can d ro p in rnodel and add in heights for visual comparison. Let Ed know by the end of next week. Will verify list we are given this evening with Ed. Not as important if the mountains are the background. c. Stop sign on Discovery property. d. No access sign off 35 and 12. Especially 12. e. Copy of operating bond. f. Provide a general timeline for permitting process. We have heard request to wait on Phase 2, don't know if it's possible. g. Request for regular updates from Discovery on permitting meeting dates. It's a moving target, but keep contact with Ed on permitting meeting dates/hearing dates. h. Build a contact list, fo rwa rd it out to the community to verify. i. HOA to meet internally and crystallize requests. Target to meet 8/28 or 9/6. j. Contact the state patrol for road security k. Provide results of Noise Model to community [present at next meeting] L Take photographs and impose plant projection from all community members that request it. Buffalo Ridge HOA follow-up meeting at the Fort Lupton Rec. Center Held 09-06-2017 Introduction 1. Start up of Ft Lupton 2, Noise Study for Phase 1 and Phase 2 3. Safety and Emissions Start -Up -Cory Kline Online on or about the 18th Mike - Explain purge process and pipelines in/out of plant A: Pipelines: 12" coming in, 10'i out. Purging atmosphere out of the pipe so as not to mix natural gas with oxygen. Tom —What was the root cause on generator fire? A breaker arced in the building, failed, and sparked. Contractor error. The cabinet contained the flash. Don- are compressor buildings complete? A: Yes. The buildings for 1A are complete. Trim work is being completed. Everything is enclosed except for the cooler. Mike - are 12" and 10" for Phase 1? What about the 20"? A: Existing 12" suction line is designed for 20 MMscfd. 10" is for both. 20" will have 40 MM capacity at low pressure. 20" is for phase 1. Phase 2 will convert the existing 12" and 201 lines to high pressure. Don - what is the difference between Phase 1 and Phase 1A? Why haven't we been able to see the plot plan from the start? The differences between 20MM and 40MM mean nothing to us, I care about the footprint. A: That should be available. We have sent it before. Tarin - who has the footprint? A: It has been sent to Ed. We can send it to everybody that has signed in here today. PRESENTATION - Hicks Health and Safety Q: Will emergency alarms be heard in the neighborhood? A: Emergency alarms will likely be plantwide alarm. It is designed to be heard over ambient noise. Very unlikely that it will happen. la: Navy has all those same things but they still run into other ships. A: Many of the original process alarms were actually developed from the Navy. There have been countless hours of effort and development that has gone into the safety and process alarm systems at the plant. Cl: What happens to entire pipeline system if plant shuts down? A: Pad compressors and compressor stations are designed to shut down on high pressure. Final relief safety measure is the pressure relief valves. Ed: What if there is not enough gas to supply the plant? A: Plenty of options — motors that slow down, recycle valves around compressors to bring gas back to the suction, the ability to shut down some of the compressors. Several options of how Discovery wants to run (Pressure, Temperature, Flow, Level). System control is like cruise control on a car. Ca: What happens if you lose power? A; UPS system will keep everything critical up and running (air system, computers) for hours before batteries run down. 0: Houston had issues of generators not working at refineries. A: That's not a concern here because there are no chemical reactions that are required to keep cool. The process is similar to a refrigerator. Q: Don- But what am I going to see? A: *given a copy of plot plan* Q: Explain inspection process A: First, it's done in house. Operators are trained to see if something is not working. Monthly e nvironmental inspections. CDPHE - Colorado Dept of Public Health and Environment. They provide e mission limits. Monthly, Quarterly, Annual reports, along with annual inspections (and more u nannounced) Q: How many operators will be there daily? A: Will be manned 24/7/365. During the day, there will be a minimum of 3 people on site (operator, e lectrician, supervisor). For Phase 2 we will be doubling our employees. Tom- is the gas odorless coming in? A: Not entirely. Won't smell like rotten eggs Tom- Is there monitoring outside of the plant? A: There are gas monitors in low and high lying areas in a building that will provide an alarm and trigger a shutdown. Jenny - is there a process to inform residents of emergency response? A: There aren't any release scenarios that are predicted to go off -site. The intent is to visit with local responders to get their input. Any notification will come from local emergency response. Adam - will operators evacuate offsite? A: Meet local responders on site to coordinate response. This is something that will be practiced once a year. 0: Explain the worst case scenario. A: Take largest tank and model it for a release. Model the vapor cloud explosion. The modeling process is verified by EPA. Q: How about a BLEVE explosion? A: That will not have the impact as a vapor cloud explosion. We would like to reiterate the time and effort we have spent to make it safe, and add safer extra areas. fa: Did you model the 40 mph winds that we see in your model? A: The model assumes a 5 mph wind. Q: A 5 mph wind almost never happens. A: We followed EPA guidelines for the model. A high wind situation will decrease the likelihood that ignition will occur. A vapor cloud is a gas at a low level - high winds will disperse the gas, of course, there is a large focus on the prevention of ignition sources (wiring, explosion proof, etc). Any hot work is done via a permitting process. Q: What is the effect of a lightning strike up on the hill? A: We have grounding grid around the plant to that covers all the critical equipment. The grid covers all the way out to the barbed wire fence. Q: Are the skids outside or within the buildings? A: The new skids will be outside. Ed - please send the safety presentation PRESENTATION - NOISE What is the noise level at the property for Phase 1? A: Approximately 35 dBa Q: What is the noise level at our property with surrounding noise? A: Because it is less than ambient, we wouldn't expect it to be perceivable O : What were the effects of weather on the days taken? Would wind direction affect sound? A: Data is thrown out if too there's too much wind. We wouldn't measure in unrepresentative conditions. Initial review based on COGCC limits, which are more stringent than is required for this station. O : What are the noise sources? A: The compressors are the major noise source. Refrigerator units and combustor are also sources of noise. Mitigation measures currently proposed are robust, additional measures are not needed. ,:Will I hear it living in the HOA? A: It's possible, depending on ambient conditions. It's not a code compliance issue, because it's far below code. The instances you hear it will be based on fluctuating ambient sound levels. If it's completely quiet, you may be able to hear it. 0: on compressors, are fans suckers or blowers? A: Suckers. The model is based on current machine spec for 3516 and 3508, along with the fan manufacturer, The starter vents will have mufflers. 0: How does that compare to Anadarko site? A: Not sure what they have, can't say without knowing more. I have heard they are upgrading the site. Most buildings around here are not acoustical buildings. They're basically metal shop buildings to keep the weather off. Ours are designed for noise attenuation from the start. Torn - can you explain the lights A: We are looking to have lights that can be turned on in sections to minimize lighting at night. Tom Driver- what is the fuel for powered equipment? A: Compressors are natural gas driven. Phase 2 compressor will have electric motors. Propane compressors are electric drive. Compressors - we are permitted for four suction compressors. Currently there are two 3516 compressors, and we permitted for two more. On the discharge, we're permitted for two 3508 compressors. On site compression will be removed as field compression comes on line. On the Phase 2 200 MM, compression will be electric driven, as will the stabilizer and refrigeration. All compression will be in sound attenuated buildings. Adam - the picture you sent us, is that 1A and 1b, or does it include 2? A: It includes through Phase 2. We took a photo and dropped it into the model. We also added a 6' fence at the property line to see what it would look like. ACTION ITEMS • Send Plot Plan to all attendees • Send safety presentation to Ed Engle Jennifer Parmenter Broth Rory & Dawn Pettinger i u eSaCI Charlene Michel Hank Ford Leo Branstetter c et). 20 Nancy & Ed Engle Crystal Nordholm z E k Shuker Falvo rn Marja Driver Rick Pew C V) r CO CD 4561 Meadow Lark Road 4181 Meadow Lark Road 4081 Falcon I 4188 Meadow Lark Road 0 0 [0 County Road L Falcon Drive XP D Falcon Drive L Wren Circle Falcon Drive Meadow Lark Road I Pheasant Circle rn ta e Streel Q C ra rive 1/4O ' Q NJ CD teU W O Liu - 0 CD a) 303-919-6006 phi O L NJ s NJ 303-501-4801 _ 303-898-5958 1991 -I08 -SOS c I O D-498-0313 13-857-8221 0 I NJ NJ Z rn 9 O U' kJ lbNi w a 71 0_ = CDfa f = n rn _ 0 a m p co ,n ,o r u.Joj•usw670al - C _ C Isi.bz co O is@vahoo.com 3 co _ , Isom O ET h oo.com n mail_cern O hntmail.com 3 2 O n 0 3 Glen Starkey — a Mark & Sharon Rients swepy ttlspin Norman Vigil s _CO > CD I ren Swink 0 rim r Mincer ucslo in Ott OMB a Y in 4038 Meadow Lark Road 4038 Meadow Lark Road 17050 Eagle Drive 4088 Meadow Lark Road 4133 Falcon Drive I" NJ o .°6441/2 4 51 Dove Circle o W Falcon Meadow I 'Eagle Street T —n m Eagle Street au CO ni O O 0 m m 0 0 0 1 a' CD 0 CD XI 0 Cu O. 303-659-0468 303-888-81 L0-394-3366 3-621-6966 p3-241-24 I w LO -9674 D-1 3-4' Co .-1 f Cts� 0 o Lair eIkwatchers48@gmaiI tirneunlvver@gmail.eam yj_ils+concrete@aoiton darren.s ►ink@grnailLcom M .tea s Z ta r al .dodge .at oo.corn `12 1 i pr Cs88@msn!coti) ■ c ucd,enve r.ed u r 3 w w _. -• i �{ q Ci ; : 1 2 Samuel Engineering We 'r , i Jo Solutions 8450 East Crescent Parkway, Suite 200 Phone: 303.714 4840 Greenwood Village, CO 80111 FAX: 303. 714.4800 DRAINAGE NARRATIVE Discoverer DJ Services, LLC Ft. Lupton Discovery Gas Plant Phase II Part of the NW¼ of Section 11, T1N, R66W, 6th PM Weld County, Colorado CE -1O2 PREPARED BY: SAMUEL ENGINEERING, INC. 8450 EAST CRESCENT PARKWAY, SUITE 200 GREENWOOD VILLAGE, CO 80111 ISSUED FOR AMENDMENT TO USR PERMIT 16-0031 Project Number 17007-01 — Rev. 0 August 2017 Samuel Engineering e , swig ;; f 8450 East Crescent Parkway, Suite 200 Phone: 303, 714.4840 Greenwood Village, CO 80111 FAX 303.714.4800 GENERAL LOCATION AND DESCRIPTION A. Site Location The subject project is located in part of the south 1/2 of Section 11, Township 01 North, Range 66 West of the 6th Principal Meridian, County of Weld, State of Colorado. The property shipping address is 4501 Weld County Road 35, Fort Lupton Colorado. The property is located north of and adjacent to County Road 10 section line and west of County Road 35. No public streets are proposed within the property. B. Description of Property The subject property is approximately 243 acres and will be divided into three (2) lots as part of the Use By Special Review (USR) process and recorded exemption. (Amending USR 16-0031). Lot A, located in the northwest section of the property has an existing processing area, which includes an existing 30' Discovery Di Sen./ices, LW pipeline easement, record number 4277362 and continues through lot B, located in the north/south midsection of the property. A deed will be required for the additional 80 acre section of the property. This section includes includes an existing 50' Front range pipeline easement record number 3913101. 1. There are no open channels, lakes, streams or irrigation ditches in the area of the proposed development. The subject property is not located in a floodplain. The surrounding area development consists of a gas compressor plant located directly west of the proposed Ft Lupton Discovery Gas Plant Phase II. 2. Topographic relief over the property ranges from 5160' to 5070' in elevation and is characterized by flat grades that typically range from 0.5% to 5%. B. There are three (3) soil types present, Olney loamy sand (USC rating SM), Valent sand (USC rating SP-SM), and Vona loamy sand (Also USC rating SM). C. Existing and Proposed Drainage 4. Phase 1 development did not include detention or water quality features for storm water runoff. Phase I stormwater currently drains onto the phase 1 I property. Stormwater from both phase I and II will now be directed to a proposed 3.82 acre- foot detention and water quality pond before discharging into the natural drainage pattern. The detention pond will be designed to hold the 100 -year 1 -hour event and release at the 10 -year 1 hour release rate following Weld County Drainage requirements for Non -Urbanizing Drainage Areas. Samuel Engineering We Pro vide So lueions 8450 East Crescent Parkway, Suite 200 Phone: 303.714.4840 FAX: 303.714.4800 Greenwood Village, CO 8O111 CONCLUSIONS a: 1. The proposed detention will provide water quality and detention for the current and proposed site development and releasing stormwater at the historic rates. 2. A full drainage report will be prepared and submitted with grading plans and construction drawings. Vicinity Map I I� z UJ &JSTING MAJOR CONTOURS S]TE BOUNDARY/PROPERTY UNE • 'I Pa- • 1 es au 1 ,ar sas a taxi._ens .Sl.lsail ea Fe ew 2 .1317:rjrt- ADJOINING PROPERTY UNE I 5ECl7ohl LINE PROPOSED PROPERT( UOUNDARY UNE 1 I I I i�~eae el6ieeau ea f I it f` el e • s Ill i i_ - Cv i� i ! � Flo " lit. Al! 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T a MifSa.■ 4 - lows la t e er neaara +•e Slut ,eel J K a as. aslis a 5 NOP1.4 f7`IW . 13304 Par • D a O a 1 - Y - a amid fi:U.1.s a+►i r b r,,k, .. iJ •rte C U1 +.a a ha a lig u C ■— 'J Cri O. 1' Q _ $) 't 0139£1 3 OOIEl 3 OOECT 3 °MEI•a WWI 3 DOW 3 OMIT 3 OD i I —1115 g a t p !am own) bbg i o, 1 iz M1001 4 roalclle/]IiU M ern LI(RAZY12' wid Ira tog-annAtoJIaalotsw �' J WI WtsatrtemM 1is :A.+on Fort Lupton Gas Plant Noise Modeling Report September 8, 2017 Prepared for: Discovery Midstream Partners 1782 Platte Street Denver, CO 80202 Prepared by: Behrens and Associates, Inc, 13806 Inglewood Avenue Hawthorne California, 90250 Andrew Truitt Rocky Mountains Area Acoustical Engineer Jason Peetz Engineering Manager Corporate Office: Hawthorne, California Carson, California -- Aledo, Texas Napa California — Longmont, Colorado — McDonald, Pennsylvania 800-679-8633 www.environlnental-noise-control.com www.drillingnoisecontrol.com Behrens and Associates, Inc. Environmental Noise Control 1. Introduction The following report provides a noise modeling assessment of the proposed gas plant at the Fort Lupton Gas Plant operated by Discovery Midstream Partners in relation to the Weld County, Colorado noise regulations. The noise modeling includes both Phase 1 and Phase 2 of proposed construction. The Fort Lupton Gas Plant (40'3'46.86"N, 104°44'33.04"W) is located adjacent to the intersection of Weld County Road 35 and Eagle Street approximately four miles southeast of Fort Lupton, Colorado. The site is bordered by agricultural land with some single-family homes to the north and west, single family homes to the east, and agricultural and industrial land to the south. Figure 1-1 identifies the pad location. To assess the predicted noise levels of the proposed gas plant, manufacturer sound level performance data of equipment, exhaust silencers, and acoustical buildings was used. File sound level data previously measured and typical of the equipment was used when/if manufacturer sound level performance data was not available. The noise model was developed using SoundPLAN 7.4 software. The following is provided in this report: • A brief introduction of the fundamentals of noise. • A. review of the applicable Weld County noise standards. • Presentation of ambient sound level survey results. • Discussion of noise modeling methodology and results. Figure 1-1 Discovery Midstream Location Fort Lupton Gas Plant Introduction 1 Behrens and Associates, Inc. Environmental Noise Control 2. 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 forceschange 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 ents. 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 2-1. Detailed acoustical definitions have been provided in Appendix A — Glossary of Acoustical Terms. COMMON OUTDOOR NOISE LEVEL COMMON INDOOR SOUND LEVELS dB (A} SOUND LEVELS 110Rock Band 8-747-200 Takeoff at 2 mi. Gas Lawn Mower at 3 ft. Diesel Truck at 150 ft. DCS30 Takeoff at 2 mi. Noisy Urban Daytime Small Theatre, Large Conference Room (Background) Libraryr *►� Bedroom at Night 6 Concert Hall (Background Figure 2-1 Typical Indoor and Outdoor A -Weighted Sound Levels Noise Fundamentals 2 Behrens and Associates, Inc. Environmental Noise Control 3. Weld County Noise Standards The modeling analysis was developed to predict operational noise levels at adjacent properties and verify compliance of operations with the Weld County noise standards. The Weld County code establishes permissible sound levels by type of property and hours of the day. The measurement location is defined in Section 14-9-50-A.2. "A noise originating on private property shall be measured at or within the boundary of the property from which the noise complaint is made". Based on the language in the Weld County code, the Residential noise level limits listed in Table 3-1 will be used throughout the report. Table 3-1. Home Rule Charter for the County of Weld, Colorado, Chapter 14, Article IX — Noise, Section 14-9-40 — Maximum Permissible Noise Levels Land Use Maximum Noise (dBA) 9:00 pm Maximum Noise (dBA) 7:00 am 7:00 am to next 9:00 pm to next Residential or Commercial 55 dBA 50 dBA Industrial Area or Construction 60 dBA 55 dBA Nonspecific Areas 70 dBA 65 dBA Weld County Noise Standards Behrens and Associates, Inc. Environmental Noise Control 4. Ambient Soun Level Survey An ambient sound level survey was performed at the Discovery Midstream gas plant location near Fort Lupton, CO from Friday, February 24th to Monday, February 27th, 2017 to measure and document the ambient sound levels on and near the gas plant prior to operational startup. The instrumentation used for each monitoring location was a Svantek Model 971, Type 1, integrating and logging sound level meter. The Svantek sound level meters were calibrated with a Quest QC -10 Class 1 calibrator traceable to the National Institute of Standards and Technology (NEST). The measurement systems were deployed at four locations at the proposed gas plant property boundaries. Figure 4-1 shows the locations of meters one through four. Table 4-1 below presents the overall average (Leg) daytime (7am — 9pm) and nighttime (9pm — 7am) noise level measurements at each monitoring location over the entire deployment period, per Weld County Noise Standards. Measurement location 4 registered average daily and nightly noise levels in excess of the current noise standards while the other locations were under the noise standards for the same periods. This is most likely attributed to existing Kerr McGee oil and gas infrastructure near measurement location 4. Table 4-1 Ambient Sound Level Measurements for Fort Lupton Gas Plant Discovery Midstream Partners - Fort Lupton Gas Plant Measurement Location Average Daytime Noise Levels Pre -Operational Average Nighttime Noise Levels Pre -Operational dBA dBA 1 54.3 46.4 2 51.8 47,8 3 45.7 41.3 4 57.0 51.9 Ambient Sound Level Survey 4 Behrens and Associates, Inc. Environmental Noise Control Figure 4-1 Ambient Sound Level Measurement Locations Measurement Location 1 Measurement Location 4 Ambient Sound Level Survey Measurement Location 2 Measurement Location 3 Behrens and Associates, Inc. Environmental Noise Control 5. Fort Lupton Gas Plant Noise Modeling 5.1 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 7.4 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. SoundPLAN 7.4 software simulates light downwind conditions in all directions to ensure conservative assessments. The predicted noise levels represent only the contribution of the proposed gas plant 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. The equipment sound level data used in the Phase 1 and Phase 2 gas plant modeling was sourced from equipment manufacturer data per approved project design documentation. Compressor package engine sound level data, engine exhaust sound level data, engine exhaust silencer performance data, and engine cooler sound level data was acquired from CDM and supporting suppliers. The dimensions and performance specifications of the Sunward compressor buildings was sourced directly from Sunward in accordance with their performance data sheets. File sound level data previously measured by Behrens and Associates and typical of combustors and inlet separators was used in lieu of manufacturer sound level data. Phase 2 modeling results include the equipment and sound level contributions of Phase I construction as well. The modeling results predicted are dependent on equipment and mitigation orientation as indicated per current project documentation. Tables 5-1 and 5-2 list the modeled equipment for Phase 1 and Phase 2 of project construction. Table 5-1 Equipment Modeled for Fort Lupton Gas Plant — Phase 1 Quantity, Manufacturer Model Equipment 4 Inlet Compressor Packages CDIVI CAT 3516E 4 ELF-�''�-1 1 F - Exhaust Silencer for CAT 3516B Engine g43CEE EMIT 4 Engine Cooler for CAT 3516B Harsco 15 EH -116-24 1 Inlet Separator File Data File Data 4 Acoustical Buildings Sunward STC — 54 Rated Wall Construction Fort Lupton Gas Plant Noise Modeling 6 Behrens and Associates, Inc. Environmental Noise Control Table 5-2 Equipment Modeled for Fort Lupton Gas Plant — Phase 2 S Quantity Equipment Manufacturer Model 1 Phase 1 Equipment from Table 5-1 See Table 5-1 See Table 5-1 2 Residue Compressor Packages CDM CCl rl O3506B 506B 2 ELF -4200 -1+ 1 43 CEE f '- EMIT Exhaust Silencer for CAT G3508B Engine 2 Engine Cooler for CAT G3508B Harsco 108EH-82-16 1 Cryogenic Unit GEA L 475GLE 3 Refrigeration Compressors Mayekawa 220JL _3 Combustors File Data. File Data 4 Acoustical Buildings Sunward STC" 54 Rated wall — Construction `� 5.2 Noise Sensitive Receptors The noise sensitive receptors have been chosen to be consistent with the requirements of the Weld County, Colorado noise standards. The requirements indicate that a noise originating on private property shall be measured at or within the boundary of the property from which the noise complaint is made. As such, receptor locations were chosen at the surrounding property lines of the Fort Lupton Gas Plant to represent potential regulatory measurement points should a complaint be made. Figure 5-1 shows the dBA noise sensitive receptor locations. Fort Lupton Gas Plant Noise Modeling 7 Behrens and Associates, Inc. Environmental Noise Control Figure 5-1 Noise Sensitive Receptor Locations (dBA) Receptor 2 Receptor 1 Receptor 10 Receptor 9 Receptor S Receptor 7 Receptor 6 Receptor 5 dBA Compliance Assessment Locations Discover Midstream Property Line Receptor 3 Receptor 4 Fort Lupton Gas Plant Noise Modeling 8 Behrens and Associates, Inc. Environmental Noise Control 5.3 Noise Modeling Results The e results of the unmitigated noise modeling are presented in Table 5-3. The locations in the tables correspond to the receptor locations identified in Figure 5-1. The results of the noise modeling are also shown as noise contour maps. Figure 5-2 shows the Phase 1 Noise Contour Map in dBA and Figure 5-3 shows the Phase 2 Noise Contour Map in dBA. The noise contours are provided in 5 dB increments with the color scale indicating the sound level of each contour. The numerical and graphical noise modeling results indicate that the predicted noise levels at the modeled receptor points will comply with the allowable noise limits of the Weld County, Co noise standards with implementation of the currently specified compression equipmentand supporting exhaust silencers and acoustical buildings. No additional acoustical mitigation measures are recommended at this time. Additionally, the noise modeling results predict that the noise levels of the proposed Fort Lupton Gas Plant will be at or below average ambient noise levels show in Table 4-1. Table 5-3 Noise Modeling Results @BA) Receptor Location Description Phase 1 dBA Phase 2 dBA Location 1 Northwest Property Line 41.9 42.4 Location 2 North Property Line 43.3 44.8 Location 3 Northeast Property Line 33.9 35.1 Location 4 East Property Line 33.9 39.4 Location 5 Southeast Property Line 31.7 36.7 Location 6 South Property Line 35.0 40.3 Location 7 Southwest Property Line 27.9 37.1 Location 8 Southwest Property Line 28.0 35.9 Location 9 Southwest Property Line 30.2 37.4 Location 10 West Property Line 36.8 39.4 Allowable Noise Level Property line of potential noise complainant. 55.0 50.0 Day Night / 55.0 Day 50.0 Night / g Fort Lupton Gas Plant Noise Modeling 9 Behrens and Associates, Inc. Environmental Noise Control Figure 5-2 Phase 1 Noise Contour Map (dBA) Average Noise Level, Leg dBA run PE - 30.0 a 05.0 - 40.0 45.0 50.0 55.0 0.0 - 65.0 •0.0 75.0 - 80.0 85.0 90.0 0 .20400600 800 feet Foil Lupton Gas Plant Noise Modeling Behrens and Associates, Inc. Environmental Noise Control Figure 5-3 Phase 2 Noise Contour Map (dBA) Average Noise Level, Leg dBA - 30.0 - 35.0 40.0 45.0 50.0 55.0 60.0 - 05.0 70.0 x'5.0 80.0 55.0 90.0 i i a i i i i 0 200400600800 feet Foil Lupton Gas Plant Noise Modeling Behrens and Associates, Inc. Environmental Noise Control 6. Conclusion Predictive noise models were created to represent the proposed operations at the Fort Lupton Gas Plant operated by Discovery Midstream Partners. Phase 1 and Phase 2 equipment and infrastructure were included in the models with factory sound level data sourced from manufacturers. Currently proposed acoustical mitigation, represented by engine exhaust silencers and acoustical compressor buildings, was included in the predictive models as well. Noise sensitive receptor locations included in the modeling were placed in compliance with the applicable noise standards of Weld County, Colorado. Our analysis indicates that the predicted noise levels at the modeled receptor points will comply with the allowable noise limits of the Weld County, CO noise standards with implementation of the currently specified compression equipment and supporting exhaust silencers and acoustical buildings. No additional acoustical mitigation measures are recommended at this time. Conclusion Behrens and Associates, Inc. Environmental Noise Control Appendix A - Glossary of Acoustical Terms Glossary of Acoustical Terms 13 Behrens and Associates, Inc. Environmental Noise Control Ambient Noise The all -encompassing noise associated with a given environment at a specified time, usually a composite of sound from many sources both near and far. Average Sound Level See Equivalent -Continuous Sound Level A -Weighted Decibel Scale The human ear is more sensitive to some sound frequencies than others. It is therefore common practice to apply a filter to measured sound levels to approximate the frequency sensitivity of the human ear. One such filter is called the A -weighted decibel scale which emphasizes sounds between 1,000 and 5,000 Hertz by discounting the frequencies outside of this range. As the human ear is less sensitive to low frequency noise, the A -weighted decibel scale begins to increasingly discount noise below 500 Hertz. Measurements conducted utilizing the A -weighted decibel scale are denoted with an "(A)" or "A" after the decibel abbreviation (dB(A) or dBA). The A -weighted scale is nearly universally used when assessing noise impact on humans. C -Weighted Decibel Scale High level low frequency noise can propagate large distances from its source. Although not always audible, high levels of low frequency noise can induce vibrations in objects or structures which could become evident in ways that might be annoying to humans (e.g., rattling of windows). The C -weighted decibel scale, which was developed to estimate human ear sensitivity to high noise levels, is a flatter filter that does not discount low frequency noise as much as the A -weighted decibel scale. As a result, a C -weighted decibel measurement could be significantly higher than an A -weighted decibel measurement if the noise being measured contains a heavy low frequency content. Measurements conducted utilizing the C -weighted decibel scale are denoted with an "(C)" or "C" after the decibel abbreviation (dB(C) or dBC). C -weighted noise level limits are sometimes included in noise regulations as a way to address low frequency environmental noise issues. Community Noise Equivalent Level (CNEL) A 24 -hour A -weighted average sound level which takes into account the fact that a given level of noise may be more or less tolerable depending on when it occurs. The CNEL measure of noise exposure weights average hourly noise levels by 5 dB for the evening hours (between 7:00 pm and 10:00 pin), and 10 dB between 10:00 pin and 7:00 am, then combines the results with the daytime levels to produce the final CNEL value. It is measured in decibels, dbs. Day -Night Average Sound Level (Ldn) A measure of noise exposure level that is similar to CNEL except that there is no weighting applied to the evening hours of 7:00 pm to 10:00 pm. It is measured in decibels, dB. Glossary of Acoustical Terms Behrens and Associates, Inc. Environmental Noise Control Daytime Average Sound Level The time -averaged A -weighted sound level measured between the hours of 7:00 am to 7:00 pm. It is measured in decibels, dB. Decay Rate The time taken for the sound pressure level at a given frequency to decrease in a room. It is measured in decibels per second, dBis. Decibel (dB) The basic unit of measurement for sound level. Direct Sound Sound that reaches a given location in a direct line from the source without any reflections. Divergence The spreading of sound waves from a source in a free field, resulting in a reduction in sound pressure level with increasing distance from the source. Energy Basis This refers to the procedure of summing or averaging sound pressure levels on the basis of their squared pressures. This method involves the conversion of decibels to pressures, then performing the necessary arithmetic calculations, and finally changing the pressure back to decibels. Equivalent -Continuous Sound Level (Leq) The average sound level measured over a specified time period. It is a single -number measure of time - varying noise over a specified time period. It is the level of a steady sound that, in a stated time period and at a stated location, has the same A -Weighted sound energy as the time -varying sound. For example, a person who experiences an Leq of 60 dB(A) for a period of 10 minutes standing next to a busy street is exposed to the same amount of sound energy as if he had experienced a constant noise level of 60 dB(A) for 10 minutes rather than the time -varying traffic noise level. It is measured in decibels, dB. Fast Response A setting on the sound level meter that determines how sound levels are averaged over time. A fast sound level is always more strongly influenced by recentsounds, and less influenced by sounds occurring in the distant past, than the corresponding slow sound level. For the same non -steady sound, the maximum fast sound level is generally greater than the corresponding maximum slow sound level. Fast response is typically used to measure impact sound levels. Field Impact Insulation Class (FIIC) A single number rating similar to the impact insulation class except that the impact sound pressure levels are measured in the field. Glossary of Acoustical Terms Behrens and Associates, Inc. Environmental Noise Control Field Sound Transmission Class (FSTC) A single number rating similar to sound transmission class except that the transmission loss values used to derive this class are measured in the field. Flanking Sound Transmission The transmission of sound from a room in which a source is located to an adjacent receiving room by paths other than through the common partition. Also, the diffraction of noise around the ends of a barrier. Frequency The number of oscillations per second of a sound wave Hourly Average Sound Level (HNL) The equivalent -continuous sound level, Leg, over a 1 -hour period. Impact Insulation Class (TIC] A single number rating used to compare the effectiveness of floor/ceiling assemblies in providing reduction of impact -generated sound such as the sound of a person's walking across the upstairs floor. Imp act Noise The noise that results when two objects collide. Impulse Noise Noise of a transient nature due to the sudden impulse of pressure like that created by a gunshot or balloon bursting. Insertion Loss The decrease in sound power level measured at the location of the receiver when an element (e.g., a noise barrier) is inserted in the transmission path between the sound source and the receiver. Inverse Square Law A rule by which the sound intensity varies inversely with the square of the distance from the source. This results in a 6dB decrease in sound pressure level for each doubling of distance from the source. Ln Percentile Sound Level The noise level exceeded for n% of the measurement period where n is between 0.01% and 99.99%. Usually includes a descriptor i.e. A -weighting. Common Ln values include LA10, LA50, and LA90 levels. LA10 would represent the A -weighted sound level that is exceeded for 10% of the measurement period. Masking The process by which the threshold of hearing for one sound is raised by the presence of another sound. Maximum Sound Level (Lmax) The greatest sound level measured on a sound level meter during a designated time interval or event. Glossary of Acoustical Terms Behrens and Associates, Inc. Environmental Noise Control NC Curves (Noise Criterion Curves) A system for rating the noisiness of an occupied indoor space. An actual octave -band spectrum is compared with a set of standard NC curves to determine the NC level of the space. Noise Isolation Class (NIC) A single number rating derived from the measured values of noise reduction between two enclosed spaces that are connected by one or more partitions. Unlike STC or NNIC, this rating is not adjusted or normalized to a measured or standard reverberation time. Noise Reduction The difference in sound pressure level between any two points. Noise Reduction Coefficient (NRC) A single number rating of the sound absorption properties of a material. It is the average of the sound absorption coefficients at 250, 50O, 1OOO, and 20OO Hz, rounded to the nearest multiple of 0.05. Normalized Noise Isolation Class (NNIC) A single number rating similar to the noise isolation class except that the measured noise reduction values are normalized to a reverberation time of 0.5 seconds. Octave The frequency interval between two sounds whose frequency ratio is 2. For example, the frequency interval between 5OO Hz and 1,000 Hz is one octave. Octave -Band Sound Level For an octave frequency band, the sound pressure level of the sound contained within that band. One -Third Octave The frequency interval between two sounds whose frequency ratio is 2A0/3). For example, the frequency interval between 2O0 Hz and 25O Hz is one-third octave. One -Third -Octave -Band Sound Level For a one -third -octave frequency band, the sound pressure level of the sound contained within that band. Outdoor -Indoor Transmission Class (OITC) A single number rating used to compare the sound insulation properties of building facade elements. This rating is designed to correlate with subjective impressions of the ability of facade elements to reduce the overall loudness of ground and air transportation noise. Peak Sound Level (Lpk) The maximum instantaneous sound level during a stated time period or event. Pink Noise Noise that has approximatelyequal intensifies at each octave or one -third -octave band. Glossary of Acoustical Terms 17 Behrens and Associates, Inc. Environmental Noise Control Point Source A source that radiates sound as if from a single point. RC Curves (Room Criterion Curves) A system for rating the noisiness of an occupied indoor space. An actual octave -band spectrum is compared with a set of standard RC curves to determine the RC level of the space. Real -Time Analyzer (RTA) An instrument for the determination of a sound spectrum. Receiver A person (or persons) or equipment which is affected by noise. Reflected Sound Sound that persists in an enclosed space as a result of repeated reflections or scattering. It does not include sound that travels directly from the source without reflections. Reverberation The persistence of a sound in an enclosed or partially enclosed space after the source of the sound has stopped, due to the repeated reflection of the sound waves. Room Absorption The total absorption within a room due to all objects, surfaces and air absorption within the room. It is measured in Sabins or metric Sabins. Slow Response A setting on the sound level meter that determines how measured sound levels are averaged over time. A slow sound level is more influenced by sounds occurring in the distant past that the corresponding fast sound level. Sound A physical disturbance in a medium (e.g., air) that is capable of being detected by the human ear. Sound Absorption Coefficient A measure of the sound -absorptive property of a material. Sound Insulation The capacity of a structure or element to prevent sound from reaching a receiver room either by absorption or reflection, Sound Level Meter (SLM) An instrument used for the measurement of sound level, with a standard frequency -weighting and standard exponentially weighted time averaging. Glossary of Acoustical Tcnns Behrens and Associates, Inc. Environmental Noise Control Sound Power Level A physical measure of the amount of power a sound source radiates into the surrounding air. It is measured in decibels. Sound Pressure Level A physical measure of the magnitude of a sound. It is related to the sound's energy. The terms sound pressure level and sound level are often used interchangeably. Sound Transmission Class (ST) A single number rating used to compare the sound insulation properties of walls, floors, ceilings, windows, or doors. This rating is designed to correlate with subjective impressions of the ability of building elements to reduce the overall loudness of speech, radio, television, and similar noise sources in offices and buildings. Source Room A room that contains a noise source or sources Spectrum The spectrum of a sound wave is a description of its resolution into components, each of different frequency and usually different amplitude. Tapping Machine A device used in rating different floor constructions against impacts. It produces a series of impacts on the floor under test, 10 times per second. Tone A sound with a distinct pitch Transmission Loss (TL) A property of a material or structure describing its ability to reduce the transmission of sound at a particular frequency from one space to another. The higher the TL value the more effective the material or structure is in reducing sound between two spaces. It is measured in decibels. White Noise Noise that has approximately equal intensities at all frequencies. Windscreen A porous covering for a microphone, designed to reduce the noise generated by the passage of wind over the microphone. Glossary of Acoustical Terms Behrens and Associates, Inc. Environmental Noise Control 9/6/17 Fort Lupton Gas Plant Noise Impact Presentation By Andrew Truitt (Rocky Mountains Area Acoustical Engineer) Corporate Office: Hawthorne, California Carson, California Alecto, Texas Napa California Longmont, Colorado McDonald, Pennsylvania Phone 800-679-8633 — Fax 310-331-1538 www. environmental -noise -control. corn www.drillingnoisecontrol.corn Behrens and Associates, Inc. Environmental Noise Control Fort Lupton Gas Plant Noise Impact Report • • Acoustics 101 Project Overview Ambient Noise Measurements Noise Modeling Methodology Noise Modeling Results Recommendations Questions 9/6/17 Corporate Office: Hawthorne, California Carson, California Alecto, Texas Napa California Longmont, Colorado McDonald, Pennsylvania Phone 800-679-8633 — Fax 310-331-1538 2 www. environmental -noise -control. corn www.drillingnoisecontrol.corn Behrens and Associates, Inc. Environmental Noise Control Description of Sound & dB Sca • • • • • Air pressure wave, moves at speed of sound (760 mph) Similar to ripple in pond The ear responds to air pressure variations to give us sensation of sound Change in sound pressure from reference pressure described in decibels (dB) Reference pressure is 20 microPascals 9/6/17 i e Corporate Office: Hawthorne, California Carson, California Alecto, Texas Napa California Longmont, Colorado McDonald, Pennsylvania Phone 800-679-8633 — Fax 310-331-1538 www. environmental -noise -control. corn www.drillingnoisecontrol.corn Behrens and Associates, Inc. Environmental Noise Control Pitch, Frequency, Weighting Scales S S Our sensation of pitch determined by frequency of pressure wave (Hz) Audible range for humans is 20Hz to 20kHz Sound usually composed of all different frequencies Weighting networks allow noise to be represented with different emphases on certain frequencies 9/6/17 Octave Band enter Freq encyt Hz 31_5 83 125 250 500 1K 2K 41< 1. 22.1 44.2 88.4 177 354 707 1414 2B28 5657 113-14 C [ ,l I I 1 l I Octave Band Cut -Off Fr' gUSRCYr Hi Corporate Office: Hawthorne, California Carson, California Alecto, Texas Napa California Longmont, Colorado McDonald, Pennsylvania Phone 800-679-8633 Fax 310-331-1538 4 www. environmental -noise -control. corn www.drillingnoisecontrol.corn - Behrens and Associates, Inc. Environmental Noise Control SOUND PRESSURE Jet rake -Of '25 m distance) r t r- Average Street Traffic I�I 100 000 000 -. 10 000 000 a Roc< 1) 10 D. ► Group SOUND PRESSURE LEVEL 140dB 130 11111 1 Firecrac 120 110 Pneumatic Chipper 1001 • 1 000 000 90 44110 100000 - Y-»— ?0 1+114 / ►' 10 000 Conversational Speech I ii LII Li i I I.4t!11 Library Bedroom 60 50 Noisy Workplace '{ Business Office 40 �� 'V Rc nrl 9/6/17 HE DECIBEL SCALE COMMON SOUND LEVELS AND SOUND LEVELS NBA Lawn Rr at 3r Trod. Pa by- 5'0 mph at 60` Conversational Voice at 3' Freight Train le mile away Quiet RuralArea at Night Threshold of Healing Train Horn Tractor I Combine at' 50' Cat Passby 5D mph at 25' Cii c s: s f Tree Frogs 4k, Quiet Suburban Area at Night it Painful Acoustic Trams a a a a alla a= a a a a a=M a a a a — kopb$asi let engine tOO leo away Rock covert Ala MI_ MI IS t a• a MI MI Exirem& .Eximmely Load U.Og a a S e e 100 90 Very Loud 80 Car horn, srowblowtr flEIMSI — — Blow dr4tr, subwau; h _icopter, chains", Motoloyole, lawn mover, cortucrlibIt rile ort highway Factory, noisy rsstaurant,vacuum tcreamingchild Loud 70 60 Car, alarm clock, dig traffic Conveisalio Fi, dishwasher M.odeate 550 Moderate rainfall Faint 40 Refrigerator 30 Whispetillbrary 20 Watchtikkin Corporate Office: Hawthorne, California Carson, California Alecto, Texas Napa California Longmont, Colorado McDonald, Pennsylvania Phone 800-679-8633 Fax 310-331-1538 dB Iaveis 5 www. environmental -noise -control. corn www.drillingnoisecontrol.corn Behrens and Associates, Inc. Environmental Noise Control Sound Level Addition • • Due to the logarithmic decibel scale, sound levels can not be added arithmetically For each doubling of sound there is a 3 dBA increase 9/6/17 Addition and Subtraction of Decibel Levels 1 SOURCE 2 SOURCES 4 SOURCE S 50 dRA $3 d8A, 56 dPA 63 dB 'Fore L I 8 SOURCES 59 cJRA Corporate Office: Hawthorne, California Carson, California Aledo, Texas Napa California — Longmont, Colorado McDonald, Pennsylvania Phone 800-679-8633 Fax 310-331-1538 ww . environmental -noise -control. corn ww.dnllingnolsecontrol.corn 6 Behrens and Associates, Inc. Environmental Noise Control Sound Level Perception in the Field Generally Not Perceptible Barely Perceptible 0 1 9/6/17 3 Readily Perceptible Perceived Doubling of Sound 4 5 6 Sound Level Increase (dBA) 7 8 Corporate Office: Hawthorne, California Carson, California Alecto, Texas Napa California Longmont, Colorado McDonald, Pennsylvania Phone 800-679-8633 — Fax 310-331-1538 10 7 www. environmental -noise -control. corn www.drillingnoisecontrol.corn Behrens and Associates, Inc. Environmental Noise Control Weather Effects • • lncreasing1or decreasing temperature and humidity changes air absorption characteristics. Air absorption generally only takes significant effect at higher frequencies (frequencies above 2 kHz). Optimization curve for temperature and humidity due to the differing absorption characteristics between nitrogen and oxygen in the air. However distance propagation will have the most significant effect especially for noise that we deal with at distance. Temperature inversions can increase the distance that noise travels and can be included in modeling for specific circumstances Wind in the direction of a receptor can increase noise levels for light to moderate wind levels 9/6/17 E C C 2 1 RELATIVE HUMIDITY °A) 4 kHz 5 E P 0 1 2 kHz w - � t 8kHz 10% 20% 10 20 39 19 20 30 40 50 TEMPERATURE CO warm air cool air • source body, of water Corporate Office: Hawthorne, California Carson, California Aledo, Texas Napa California Longmont, Colorado McDonald, Pennsylvania Phone 800-679-8633 Fax 310-331-1538 8 www. environmental -noise -control. corn www.drillingnoisecontrol.com Behrens and Associates, Inc. Environmental Noise Control Project Overview • • • • Natural gas compression station/gas plant located in Fort Lupton, Colorado Two phases of project construction Acoustical mitigation efforts in the form of exhaust silencers, acoustical enclosures, and acoustical modeling Factory sound level data and factory acoustical performance used for acoustical modeling 9/6/17 I VIM rear I. t S ' r q ! ! U - MG E■ rI OF ROAD AT PFORTFI DCE CIF 0 H % ESTING I STEEL P' *etESNurAM AS CDUfire ROAD a I PR a DEL TRIEAL -SIAM :.r 310,. ! I 1 ! Exl EMT! tiC'i : Pil • .. Tgl EXI flC H4i3 ' 71r.R - SLIPS Cr0. AqN _ tdd E : 9 f ■POSE, , • s 140 SRI 'IG+9CVAY; t STi)R1'IS; P+R.I11?4T EYIS ACCISS Ida 12' AFL AD FL PIRf r ` TL► L T li I.. - + 1 r '• iLi LiCT„ _ e fd8 rl °fi23'E 1S;i142 a l € ' 1.i -r.03'-- irne girit,AiF — jam,, eFE FEMME 1 s � 'a in" � a la Rat �..� .••1 � =Miasma t' M.., t�ln-�-.. _. a .a. — iUJta+�� -_ , s I — i2��►'��R�� tI. —_— �i.'--- -�+�—�--- 1 EXIST WATER WELL _ tmi _i " Id &MOLl EY7rsTiTMfv LEAfiM FAELD AIM F i a �� llit ■.I rir._ i Sa 0 — ea` I`iiiRO -a .. .._ `:I r r '� I I ex T®NG PltRtclhC I 171RIfd'RE IYIEtL ~1 i 'STING•FIRE .' -1,1—' 1 E RLSTI NG EDGE a MAW Er: WAIF 14 TANK5 + FRP ED 5•C 1FlgIClAii I isi 4 - AT SOUTH EDGE Of ■ , i 1 i P '= CtY•tligat5T,C1Y. I I r -._ Deane . ,� _ �' I E]I2 S I lath CAL .. .. FUTURE I N 67403 4� - a � l S i t. €OtiTtki}L ' ' — -: DIGr ictaCTP.I fldBliC Q �I�Ed Cdr ic _ A[ catjtE X +Rr7 gmI ti TC . eX'U 'Mar NC ICI I M ti ! r I I) 1 I .. u1{�T ' Irk GCL �•+. s PW'T1Jnx If0 n&INTEM :E \ `' i �, ,,..,. ,..,....,..I,.... OLO. (W r DIY) -,-,�- - - - — N a?r x _ FENCE t1CtETlMicd YlOIiP ,. " I F)I loins ..,1��II�:I '' , ii �rJ u _ PROPQ5ID POND �- PE ENT10N4 DEIGN it :�, 1 — • I ll I M 67066 lit 1 I 1 �: — F ottSS:IN5i it — : t -i•1!4 1ExISTEIA .+�,IT •i,ixesf.ta,tl�rl'.'..reR ■I PQtld PROOSEE►►+`I' EstEk`E E7[Id71LY[r DAREcoM1Rl1i 4 ' 1 - T.NII I • PROP'OSEDLOT A 24.9.Y_hCRES en a.4 ..........,..........m..,a...: ,...al H N 64444 ., - ••, I F FFt[+G.-Itilas — It1 ■1�1�1_ � PY �` rs �f$ �Y', S'° sr?P 1�1�1■Lt's,' II �� revto ":� - ill I — — — —f i s� -Si N 66600 s fa rn I _ It r —r — — �_ HEATER I l� tia �� ~� z ��F7' PROPOSED G L �� Y' REi7GUE I _ t y@' PIPELINE mama I�ro 50' DLICd31 Poturit ar 0) somas �117T as 67 ci �.', LLC ge Ial �_ .410 sac WONT y 1d1'1mt. lid N WOO I E PILOPIasED L?!ER ' drifillin ..aa,:.i ■ 1 1, • al FIE{. IiO13NCIF '' 4.r ,� , PAiJPCJ+5 SLUG rat I iE fl5 = ■ . _�, y s1 a _ r ` . zit 4 + - Q AHERFLAL CI{At1ASRR a -0,. sEl� lalel ti t PROPOSED�l �ii 8a.OOJiOW IUT it DEM ' I l' ' i\ PRi ..l. EDSIINUM! CO' 447 ti lilIEf}RCl(Lta •"'s,� ets '��_ i ; ._ • • 1I .. ' ti4. I'Iia . . Mb Pit. EO'*MilNE I*EGcraA1 d3Fi li I 1 14 66666 P, 1 y I ase I' EXISTING G t OT S17f 10UL li - 242.i) ins CA 1'S j SECTION tole R Vi' I I . ' r.N�r r H+u►iTur»E�►3I - - N 65 sGt+�l - __ �' ' ExC INS GURU WA f ! P 1 ase �+ -_ �, •• i\\ _ _�— ia Ilia ■■ J I eY t... d ., a I .- N Maio a ti )1► t I ..� d EXISTING FL4AD I iiERR�NGGEE WELL PAD I '� II '+cRj--. 1 . y r - LL r e` I _ d- Skip rte' �` ""1 II ,a+ e N 654OO I 1'-b L]4- s II II `r .,..II Elil3'IT]tOG LINDERCRINNCI SA Op II a _ i i $9 I �i 1-`4 Etta1IC111, £YBMA PIPELINEqe L ,) N 61•207`. S 4r ._{i< PARDOIKra I F �LI,Y 11 J ,. f rl �_ 1 - n ■ • as .i _ _ =t I.'1 I11 IN ... ,�is�M -- -- l,e•.s�•! 10 t�l ltl elk* I ,•5Y^.i. �ifi9 y�$ aa"Ilil lJZ7,24' "1Y_ 20.16' : 151 I 21 Yll MU.�I(' _ _ - - 714'i :'? I t - . . • M 65+000 - - •— _ W Ye W W Na Q V V W W cY em al y� Y@ $i W MA W La W I , oa a al.i.l illE E DEW Corporate Office: Hawthorne, California Carson, CaliforniaAlecto, Texas Napa California Longmont, Colorado McDonald, Pennsylvania Phone 800-679-8633 Fax 310-331-1538 9 UNIT 1H Nil www. environmental -noise -control. corn www.drillingnoisecontrol.corn Behrens and Associates, Inc. Environmental Noise Control Ambient Sound Measurements • • • • Conducted from February 24 to February 27, 2017 Type 1 sound level meter used with microphone 4 feet above the ground Hourly sound level averages (Leq) were recorded Logarithmic averages were calculated for each time period and averaged across each day 9/6/17 Corporate Office: Hawthorne, California Carson, California Alecto, Texas Napa California Longmont, Colorado McDonald, Pennsylvania Phone 800-679-8633 — Fax 310-331-1538 10 www. environmental -noise -control. corn www.drillingnoisecontrol.corn Behrens and Associates, Inc. Environmental Noise Control 9/6/17 Ambient Sound Measurement Results Lupton Pad Site Discovery Midstream Partners - Fort Measurement Location Average Daytime Pre -operational Noise Levels Average Nighttime Pre -operational Noise Levels dBA dBA 1 54.3 46.4 2 51.8 47.8 3 45.7 41.3 4 57.0 51.9 Corporate Office: Hawthorne, California Carson, California Alecto, Texas Napa California Longmont, Colorado McDonald, Pennsylvania Phone 800-679-8633 — Fax 310-331-1538 www. environmental -noise -control. corn www.drillingnoisecontrol.corn Behrens and Associates, Inc. Environmental Noise Control Noise Modeling Methodolog i • • • Legislative noise standards include Weld County Noise Ordinance Project Noise Goals at 50 dBA daytime and nighttime Project Noise Goals more stringent than legislative noise limits Modeled receptor locations include measured ambient locations Using commercial 3D sound propagation program SoundPLAN 7.4 for noise modeling Modeling includes local topography 9/6/17 Y Table 1. Home Rule Charter for the County of Weld, Colorado, Chapter 14, Areticle IX — Noise, Section 14-9- 0 Maximum Permissible Noise Levels Land Use 7:00 Maximum am to next Noise 9:00 (dBA) pm 9:00 Maximum pm to next Noise 7:00 (dBA) am Residential or Commercial Area 55 dBA 50 dBA Industrial Arca Activities or Construction 60 dBA 5 dB Nonspecific Areas 70 dBA 65 dBA Corporate Office: Hawthorne, California Carson, California Alecto, Texas Napa California Longmont, Colorado McDonald, Pennsylvania Phone 800-679-8633 Fax 310-331-1538 12 www. environmental -noise -control. corn www.drillingnoisecontrol.corn Behrens and Associates, Inc. Environmental Noise Control Noise Modeling Results i 9/6/17 Phase 1 Average Noise Level, Leq dBA 30.0 r 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 200400600800 ImICMCjfeet Phase 2 Corporate Office: Hawthorne, California Carson, California Alecto, Texas Napa California Longmont, Colorado -. McDonald, Pennsylvania Phone 800-679-8633 Fax 310-331-1538 Average Noise Level, Leq 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 200400600€00 IMW7MCjfeet 13 www. environmental -noise -control. corn www.drillingnoisecontrol.corn BUFFALO RIDGE HOA COMMUNITY MEETING TIMOTHY HICKS, MSPH, CSP, CIH PRESIDENT, HHC CONSULTING GOLDEN COLORADO ♦ CHARLESTON, SOUTH CAROLINA CONSULTING PLANT SAFETY • PREVENTION IS TI IE DRIVER FOR DISCOVERY PHILOSOPHY & APPROACH • DESIGN IS EVALUATED REPEATEDLY • REDUNDANT LAYERS OF PROTECTION PROTECTIVE EQUIPMENT IS BOTH AUTOMATED AND OPERATOR INITIATED SUBJECT TO REPEATED TESTING TO ENSURE INTEGRITY • SYSTEMS ARE "FAIL SAFE" • CONSTRUCTION MATERIALS AND METHODS ARE INSPECTED • SAFETY REVIEW IS CONDUCTED PRIOR TO STARTUP • CI IANGES IN EQUIPMENT OR PROCEDURES REQUIRE FORMAL REVIEW • OPERATORS ARE TRAINED TO OPERATE TI IE PLANT WITHIN DESIGN PARAMETERS CONSULTING WORST CASE RELEASES • PREVENTION EFFORTS EXIST TO AVOID EMERGENCIES • EPA REQUIRES DISCOVERY TO EVALUATE WORST -CASE SCENARIOS • CURRENT WORST CASE SCENARIO DOES NOT EXTEND BEYOND THE EAST DISCOVERY PROPERTY LINE • MEETING WITH LOCAL FIRE DEPARTMENTS TO DISCUSS EMERGENCY RESPONSE IN DETAIL THIS MONTH • REQUIRED OR RECOMMENDED RESPONSES FOR BUFFALO RIDGE RESIDENTS IS TI IE RESPONSIBILITY OF THE LOCAL EMERGENCY PLANNING COMMISSION (LEF'C) ALONG WTI I THE FIRE DEPARTMENT I IAVING JURISDICTION CONSULTING DETECTION & ALARM • THE DISCOVERY PLANT HAS AN EMERGENCY SHUTDOWN SYSTEM (ESS) THAT INITIATES AUTOMATICALLY UPON DETECTION OF AN EMERGENCY CONDITION • THE SYSTEM CAN ALSO BE INITIATED MANUALLY BY OPERATORS • ESS ISOLATES TI IE PLANT VIA AUTOMATIC VALVES AND STOPS ALL EQUIPMENT • UPON DETECTION OF FIRE OR UNDESIRED OPERATING CONDITION UPSET) • INCLUDES GAS DETECTION SYSTEMS THAT STOP AFFECTED EQUIPMENT • ACTIVATION OF THE PLANT ESS WILL CAUSE A DISTINCT PLANT -WIDE ALARM TO SOUND SIGNALING ALL PERSONNEL CONSULTING LOCAL EMERGENCY RESPONDERS • TO BE DISCUSSED IN DETAIL LATER THIS MONTH • CONTAINMENT STRATEGY FOR EMERGENCIES IS THE MOST COMMON APPROACH • ALLOWING TI IE PLANT EMERGENCY SHUTDOWN SYSTEM TO DO ITS JOB • ENTRY INTO THE PLANT BY RESPONDERS MAY BE REQUESTED FOR MEDICAL EMERGENCIES, SPILL ASSISTANCE, OR UNCOMMON SMALL FIRES • CHEMICAL HANDLING & STORAGE AREAS ARE LOCATED IN CONTAINMENT UNITS (ANOTHER PREVENTATIVE MEASURE) CONSULTING CHEMICALS POTENTIAL SPILLS ARE MITIGATED WITH AUTOMATIC LEVEL CONTROLS & VALVES • TANKS & STORAGE AREAS ARE LOCATED WITHIN CONTAINMENT UNITS AIR EMISSIONS ARE REGULATED BY THE CDPHE & EPA VIA PERMIT & ENFORCEMENT OF PERMIT CONDITIONS • TO PREVENT REDUCTION IN AIR QUALITY (SMOG), AND REDUCE "GREENHOUSE" GAS • TO PROTECT TI IE PUBLIC FROM CHEMICAL TOXINS ("I IAZARDOUS AIR POLLUTANTS", HAPs) HAPs OF CONCERN ARE: BTEX & FORMALDEHYDE • HYDROGEN SULFIDE (H2S) (NONE DETECTED IN GAS STREAM TO DATE) DISCOVERY WILL ENSURE THAT: 1. HAPs (AND OTHER PERMIT LIMITS) ARE NOT EXCEEDED DURING NORMAL OPERATIONS 2. WORKER EXPOSURE TO I lAPs DO NOT EXCEED OCCUPATIONAL LIMITS U CONSULTING From: Todd Hodges [mailto:thodges@fortlupton.org] Sent: Monday, October 16, 2017 2:48 PM To: Manya Miller <W1anya @discoverymdstream.com>; Alyssa Knutson <AKnutson @fortlupton.org> Cc: 'Mike Fortney' <mfortney@samuelengineering.com>; 'Chris Roberts'' ccfroberts15@gmail.com>; MARK SKELSKEY croskelskey@samuelengineering.com>; Kim Ogle ckogle@weldgovF.com> Subject: RE: Discovery REC 17-0168 Ma nya, Thank you for following up on our discussion concerning the option of annexation for your project located on parcel 147111000009 . If the property owners are not wanting to annex at this time then the intent of the CPA has been met and you can move forward with your submittal to Weld County. We will be a referral and will be responding to the application. Good luck with your project. Todd A. Hodges Planning Director City of Fort Lupton 303-994-3174 From: Manya Miller [mailto:Manya@discoveryrnidstream.com] Sent: Wednesday, October II, 2017 8:08 PM To: Alyssa Knutson cAKnutsonfortlupton.org>; Todd Hodges <thodgesfortlupton.org> Cc: 'Mike Fortney' <mfortney@samuelengineering.com>; 'Chris Roberts' ccfroberts15@gmail.com>; 'Mark Skelskey' croskelskey@samuelengineering.com> Subject: RE: Discovery Annexation Good Evening Todd, It was good to talk to you. I wanted to confirm our phone conversation. This property is where we have Phase 1 of our gas plant. We are in the process of permitting for art expansion of the gas plant, Phase 2, at the same location. Discovery DJ Services continues to hold the stance that we do not want the property annexed. We are working with Kim Ogle at Weld County for this expansion. He requests that your correspondence with him includes the wording "Phase 2". I have also spoken with Chris Roberts (Discovery Land Manager) about John Nolan's concern's of blocking access to his property off 6-1/4 when we begin work on the pipeline. Chris will be getting in touch with John to make sure we do not block his access. I will let you know when our permit for the Ft. Lupton compressor station goes out for comment. If anything else pops up, please feel free to call. Kind Regards, Manya f' 1 i I I er, P.E. Manager of Engineering 720-391-3884 manya@discoverymidstream.com Hello