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Home My WebLink About20152210.tiff RESOLUTION RE: APPROVE REQUEST CONCERNING SATISFACTION OF CONDITIONS OF APPROVAL #1.D AND #1.E FOR USE BY SPECIAL REVIEW PERMIT, USR15-0007 - 70 RANCH, LLC, C/O NGL WATER SOLUTIONS DJ, LLC WHEREAS, the Board of County Commissioners of Weld County, Colorado, pursuant to Colorado statute and the Weld County Home Rule Charter, is vested with the authority of administering the affairs of Weld County, Colorado, and WHEREAS, on April 22, 2015, by Resolution #2015-1055, the Board approved the application of 70 Ranch, LLC, 8301 E. Perntice Avenue, #100, Greenwood Village, CO 80111, do NGL Water Solutions DJ, LLC, do 3773 Cherry Creek North Drive, #1000, Denver, CO 80209, for a Site Specific Development Plan and Use by Special Review Permit, USR15-0007, for Mineral Resource Development Facilities, Oil and Gas Support and Service (Class II Oilfield Waste Disposal Facility — saltwater injection facility and a tank storage area with containment) in the A (Agricultural) Zone District, on the following described real estate, being more particularly described as follows: Being part of Section 27, Township 5 North, Range 63 West of the 6th P.M., Weld County, Colorado WHEREAS, the Board has been presented with a request from the Department of Public Health and Environment to accept the submittal of the Waste Handling Plan and Groundwater Monitoring Plan and consider Conditions of Approval #1.D and #1.E satisfied, and WHEREAS, the Board heard all of the testimony and statements of those present and reviewed the request and, having been fully informed, finds that the request to accept the submitted Waste Handling Plan and Groundwater Monitoring Plan and consider Conditions of Approval #1.D and #1.E satisfied, be approved. NOW, THEREFORE, BE RESOLVED by the Board of County Commissioners of Weld County, Colorado, that the request of the Department of Public Health and Environment, on behalf of 70 Ranch, LLC, do NGL Water Solutions DJ, LLC, to accept the submitted Waste Handling Plan and Groundwater Monitoring Plan and consider Conditions of Approval #1.D and #1.E satisfied for Use by Special Review Permit, USR15-0007, on the parcel of land described above be, and hereby is, approved. C:1+1,64B);P1„ NM);elq(8y) 2015-2210 1/.2y PL2338 REQUEST TO SATISFY CONDITIONS OF APPROVAL (USR15-0007) - 70 RANCH, LLC, C/O NGL WATER SOLUTIONS DJ, LLC PAGE 2 The above and foregoing Resolution was, on motion duly made and seconded, adopted by the following vote on the 22nd day of July, A.D., 2015. BOARD OF COUNTY COMMISSIONERS WELD COUNTY, COLORADO ATTEST: 07c44),/ ;eA EXCUSED Barbara Kirkmeyer, Chair Weld County Clerk to the Board �i 01t ( ' • xi 11 Mike Freeman, Pro-Tern BY. 1. 1. �. �.• ► :�►.� i� � ��, _ _ D-• y Clerk to the B ar.� �. �� .. �, S n P. Conway APPROVED AS TOFO �r ®p fr�'� - ozad un torney Steve Moreno Date of signature: -1/44 2015-2210 PL2338 1861 , MEMORANDUM jr TO: WELD COUNTY COMMISIONERS COUNTY FROM: HEATHER BARBARE,ENVIRONMENTAL HEALTH SUBJECT: USR15-0007,NGL C-12 EH CODITIONS OF APPROVAL DATE: JULY 14,2015 At the land use hearing on April 22, 2015,the Board of County Commissioners (BOCC) amended Conditions of Approval 1.D. and 1.E. of USR15-0007 to require BOCC approval. Condition of Approval 1.D. was related to a Waste Handling Plan and Condition 1.E. was related to a Groundwater Monitoring Plan. In accordance with that modification the Weld County Department of Public Health and Environment(WCDPHE) has reviewed the information submitted for the NGL C-12 facility. The WCDPHE recommends that the BOCC consider approval, and based on the submitted documents consider both of these Conditions of Approval to be met. Each Condition of Approval is discussed individually below: COA 1.D Waste Handling Plan: A Waste Handling Plan was provided to Weld County via e-mailed on May 29, 2015. This submittal was reviewed by WCDPHE and meets the requirements outlined in COA 1.D. The Waste Handling Plan provides information regarding waste generated onsite, chemicals stored onsite, disposal facility information, information regarding management of tank bottom solids disposal, and indication that the facility will follow the approved plan. The May 29, 2015 Waste Handling Plan provided is attached. WCDPHE recommends that the BOCC approve the submittal and consider USR15-0007 COA 1.D met. COA 1.E Groundwater Monitoring Plan: A Site Groundwater Monitoring Plan Update (CGRS Project No. 1-12462-14804aa),was provided on July 1, 2015 to WCDPHE for review. The July 1, 2015 Groundwater Monitoring Plan is attached. WCDPHE recommends that the BOCC approve the submittal and consider USR15-0007 COA I.E met. 2015-2210 WASTE HANDLING PLAN N LG WATER SOLUTIONS DJ, LLC C12 SITE 25259 CR 69 Kersey, CO 80644 Waste Facility Phone Number:970-356-5560 Project Manager Phone Number: 720-305-8097 Office Phone Number: 720-708-6535 I El Scope: This Waste Management Plan has been prepared to provide onsite operations personnel at the C12 facility with the information necessary to properly identify, manage and dispose of wastes, and to ensure the safety and protection of employees, the public and the environment. The objective of this plan is to ensure waste generated at the site is managed according to all Local, Colorado and Federal regulations. Further, the plan will define operational chemicals used or stored on site requiring specific disposal pathways. If this plan is amended, the WCDPHE will be notified in writing. Chemicals Stored On Site:The following materials will be stored at the site to support operations and have specific disposal requirements. The quantities given are the maximum amount to be stored on site at a single time. NOTE:The oil collected as part of the skimming process is stored at the site in five 500 BBL steel tanks and is considered production oil that will be trucked out for sales.Therefore, it is not considered waste and is not listed in this plan. Diesel Fuel Distillate fuels suitable for use in high and medium speed internal 50 Gal. combustion engines of the compression ignition type Emulsion Breaker Clear to Slightly Hazy Light 30 Gal. Amber to Dark Amber liquid with pungent odor Crude Oil (petroleum) Naturally occurring,yellow-to-black liquid found in geologic 90 BBL's formations beneath the Earth's surface,which is commonly refined into various types of fuels Unleaded Gasoline Light straw to red clear liquid with characteristic strong odor of 15 Gal. gasoline Chevron Way Oil Vistac Brown liquid with Petroleum odor 20 Gal. WT-990 Corrosion inhibiting cleaning compound < 1 Gal. Wolf's Head Gear Oil Dark amber lubricant with mild petroleum odor 40 Gal. NOTE:All chemicals listed above will have Material Safety Data Sheets on-site. 1 Projected Waste Streams and Volume: Filter Socks Produced water and 48 to 96 50 micron sock Waste management silts/sands>50 microns filters per day, removed weekly Sale Oil Crude oil 2-4 Loads per week NGL Crude Oil Transportation Solid Wastes Oily sand 100 BBL Waste Management CSI Tanks cleaned 6-12 disposal times per year Dumpsters Trash 4-6 Cubic yard Waste Management dumpsters, removed weekly NOTE:Waste generation during the life of this site is anticipated to be minimal. Any wastes that may be generated during the construction of this site will be temporarily stored in covered containers and will be removed from the site for proper disposal at a permitted facility. Spill Prevention and Response: Activities related to salt water disposal facilities require storage of hazardous and nonhazardous products and wastes. All efforts will be made to prevent spills of any amount of these products. The scope of this plan is intended to cover activities related to associated facilities. The following items will be followed to help avoid spills and minimize the impact of spills that accidentally occur: • Bulk quantities of any chemical will be stored in above ground tanks, which will be diked or be of double wall secondary containment design, or smaller containers. Secondary containment will also be provided for loading/unloading areas. No underground tanks will be used. A Safety Data T Sheet (SDS) for each hazardous material will be located on site. • Fuel will be stored within secondary containment and as much as practical all equipment will be refueled there. Any equipment that must be refueled in the field will be fueled from tanks carried to the work area. Lesser quantities of chemicals (i.e., cleaning supplies, lubricants) may be stored at the work area as necessary to service equipment provided that this storage does not conflict with other parts of this plan. • All chemical storage areas will be located at least 200 feet from active private water wells, and at least 400 feet from municipal water wells. Equipment servicing, lubricating, and refueling will whenever possible. also be in accordance with these requirements • hazardous materials for vehicle maintenance will follow the same requirements uirements of q mentioned above for equipment refueling. Impervious or sorbent materials will be placed under the work area before the work begins. Additional sorbent materials will also be readily available. • Waste materials created during maintenance (i.e., used oil) will be collected for proper disposal. • The work site for which these chemicals are used will be inspected after the maintenance work is complete to ensure that all hazardous materials are properly contained. All waste material, including partially used or empty containers, discarded parts, dirty rags, and used sorbent 2 material, as well as discarded hazardous materials containers (i.e., oil cans, grease tubes) will be collected and placed in open-top drums for proper disposal. • All motor fuel, lube oil, chemicals, and other polluting substances will be tightly sealed and clearly labeled during transportation and storage. • Runoff resulting from facility equipment washing operations will not be permitted to directly enter any water body or wetland area. • Construction equipment, vehicles, materials, hazardous materials, chemicals, fuels, lubricating oils, and petroleum products will be parked, stored, or serviced 100 feet from all water bodies and wetlands when not in use and when possible. • Any materials, hazardous materials, chemicals, fuels, lubricating oils, and petroleum products that must be used within 100 feet of a water body or wetland to support the work will only be used within the secondary containment protection and will be stored within temporary secondary containment during work hours. No materials, hazardous materials, chemicals, fuels, lubricating oils, or petroleum products that are not contained within equipment will be stored within 100 feet of a water body or wetland. All other sections of this plan will be followed for spill prevention and mitigation and cleanup methods. • All equipment will be inspected daily for leaks prior to beginning operations. Steps will be taken to repair leaks or remove the equipment from service, if necessary. • All containers containing any hazardous material (i.e. chemicals, lubricants, oils) will be neatly labeled. • The height of stacked containers will be limited and done so careful manor, for stability to avoid spills. • Clean up procedures and materials will be readily available and clearly posted at work areas. • Spill reporting is consistent with all federal and state requirements. • Waste generated from a spill or release will be handled in accordance with all applicable federal and state rules and regulations. • Information concerning the handling and disposal of this waste stream will be reported to the WCDPHE. • The fluid generated at the vehicle wash out area will be contained, managed& disposed of via the following: vehicles will be washed with high pressure washers with all the water being directed toward the offload pipe trench. This pipe slopes and the contents collect into the sump pump where the contents are pumped into the system head for processing. • Potentially contaminated solids such as filter socks will be collected by an approved vendor for dry-out and processing before being disposed of at a waste management site. • Waste handling hydro-vac trucks will suck E&P waste from the tank bottoms into 130bbl tanker trucks for disposal off site at Conservation Services Inc. located at 41800 East 88`h Avenue, Bennett, CO 80102. To contact via phone, call(303)-644-4395. 3 Pollution Incident Response: In the event of a spill the following will occur: • The source will be immediately stopped. • The spill will be contained by placing sorbent booms or constructing dikes. • The spill will be collected with sorbent materials, skimmed off water surfaces with booms, and/or the contaminated soil will be excavated; and the waste materials will be properly disposed in accordance with NGL's internal policies. • Document the spill and its clean-up procedures whether reporting is required or not. At a minimum document the following: o Nature of spill o Quantity of spill o Date/time spill occurred: Agency notification if necessary o Clean-up procedures used o Daily monitoring (7 days) after clean-up o Photographs o Interview(s) with any witnesses of the event • The affected areas will be restored as closely as possible to their previous condition. Spills of oil or petroleum products should be reported immediately to the Site Manager. Environmental support staff will determine the reporting requirements and contact the appropriate State and Federal environmental agencies for notification requirements. If the Site Manager cannot be contacted, then the Site Supervisor should make the necessary notifications. • A reportable release is a quantity or an unknown quantity of regulated substance released to or posing an immediate threat to surface water, groundwater, bedrock, soil or sediment. The term does not include the following, provided the owner or operator has control over the release, the release is completely contained, and within 24 hours of the release, the total volume of the release is recovered or removed in the corrective action: o A release to the interstitial space of a double-walled aboveground or underground storage tank. o A release of less than 25 gallons to a containment area, structure or facility around an aboveground storage tank. o A release of less than five gallons to a synthetic surface, such as asphalt or concrete, which prevents migration of the regulated substance to surface water, groundwater, bedrock, soil or sediment; and a release of less than one-gallon to surface soils. • Some spills will need to be reported to the Division of Water Quality immediately including the following: o Over 25 gallons of petroleum. o 5 CCs of mercury. • A release of any chemical, oil, petroleum product which entered waters of the State of Colorado (which include surface water, groundwater, dry gullies or storm sewers leading to surface water). • Any spill or release of raw sewage. • If any of the above criteria is met or exceeded, the Colorado Department of Public Health and • Environment (CDPHE), Local Emergency Planning committee, downstream users and other agencies (MS4s) will be notified. The CDPHE will be notified by telephone within 24 hours. In 4 addition, written notification describing the spill and the cleanup procedures used will be sent to the agencies 5 days following the spill. If a spill does not meet the above criteria, reporting is not mandatory. CDPHE 24-hour environmental emergency spill reporting line is 1-877-518-5608. Company Emergency Contacts: Josh Patterson Vice President of Operations O: 970-356-5560 jpatterson@highsierraenergy.com 8207 W. 20th St Suite B, Greeley, CO 80634 5 ENERGY A Fira CIS July 1 , 2015 Mr. Nick Valencia M3 Construction 2681 W . 120th Ave, Ste. 250 Westminster, CO 80234 Via email ; nvalencia@M3 -consult.com Subject: Site Groundwater Monitoring Plan Update NC L Water Solutions, LLC : C12 injection Facility Weld County Road 388 Kersey, Colorado NE1 /4,1 /4, SE 1 /4, Sec. 27, T5 N, 1463W CGRS Project No. 1 - 12462- 14804aa Dear Mr. Valencia: This correspondence summarizes the water quality monitoring program and proposed groundwater monitoring well installation located at the above-referenced NGL Water Solutions (NGL ) injection facility. The well installation and baseline soil and groundwater quality sampling activities will be scheduled after basic site infrastructure has been constructed. A site location map is included as Figure 1 , and an approximate site layout map illustrating the anticipated monitoring well locations is included as Figure 2. The Groundwater Monitoring program provides baseline background groundwater quality data, which will facilitate early detection of an unknown release of Exploration & Production ( E&P) liquids related to facility operations. Furthermore, depth to groundwater is measured in each monitoring well and the groundwater elevation, flow direction and hydraulic gradient are calculated using surveyed well elevations in order to monitor groundwater flow trends. Water quality samples will be collected and analyzed for constituents associated with oil and gas E&P activity. Water quality sampling activities for the NGL Water Solutions DJ , LLC: C12 Injection facility will be performed on a quarterly basis. Water quality samples will be submitted to a contract laboratory for analysis of benzene, toluene, ethylbenzene, and xylenes (BTEX), total dissolved solids ( TDS ), chlorides, and sulfates. All soil and groundwater quality results along with other monitoring details will be presented to the Weld County Department of Public Health and Environment ( WCDPHE) within 30 days of receipt of site analytical data as part of the groundwater sampling report. Additional analysis may be included in the sampling program based on facility updates or as directed by regulatory authorities. A full description of CGRS' Methods and Procedures for field and reporting activities are provided in Attachment A. Four permanent groundwater monitoring wells ( MW- 1 through MW-4 ) will be installed up-gradient, down-gradient and/or adjacent to facility operation areas ( Figure 2). The proposed monitoring wells will be installed to a depth of approximately five to ten feet below static groundwater. The wells will be constructed of 2-inch diameter, 10-slot PVC screen that extends at least five feet below static water level and at least five feet above the static water level and a section of solid PVC riser from the screened interval to the ground surface. 10/20 silica sand will be applied around the screened portion of the wells to a depth of approximately 2 feet above the well screen, at which point the well borings will be sealed with a hydrated bentonite/grout mixture to the surface. Monitoring wells will be finished with locking j- plug well seals and either 4-inch square aluminum stick-up mounts or flush-mounted traffic rated manways. Pertinent information, such as soil sample descriptions of color, texture, consistency, moisture content, lithology changes, deposits indicative of moisture, and soil vapor readings along with well construction details of each monitoring well will be provided in the boring logs and included in the associated quarterly groundwater monitoring report (please see Attachment B for an example boring log). CGRS will submit a well registration form to the State of Colorado following 1301 Academy Court Fort Collins, CO 80524 T 800-288-2657 F 970-493- 7986 www.cgrs.com Site Groundwater Monitoring Plan NGL Water Solutions DJ. LLC: C12 Injection Facility Weld County Road 388 Kersey, Weld County, Colorado NE1 /4, SE1 /4. Sec. 27. T5N. R63W the completion of each groundwater monitoring well and a copy of that form will be included in the quarterly report. Furthermore, additional groundwater monitoring wells may be installed based on changing groundwater conditions, potential spills, groundwater level fluctuations, to replace damaged wells, or as conditions may necessitate a need for more wells. In addition to monitoring well installation, a sub-sump monitoring point will be installed during the installation of the main unloading sump. The monitoring point will monitor for the presence of liquids that may collect on the sub-sump secondary containment liner installed beneath the sump. The monitoring point will be inspected for liquid during each quarterly monitoring event and any liquids detected will be sampled and analyzed for BTEX, TDS, sulfates, chlorides and RCRA 8 metals. CGRS will begin quarterly groundwater monitoring prior to when the facility commences full-scale operation in order to obtain adequate baseline water quality samples. It should be noted that after the installation of groundwater monitoring wells, and after site construction has been completed, a revised monitoring plan may be submitted (as applicable) to document any updated site conditions. Each groundwater sampling report will include all relevant details as described in this groundwater monitoring plan. Should you have any questions or require additional information, please call Ms. Kelly Kinsman or Mr. Craig Mulica at ( 800) 288-2657. Sincerely, CGRS, Inc. Kenneth Rogowski Project Manager Enclosures: Figure 1 - Site Location map Figure 2 — Approximate Site Layout Map Table 1 a — Summary of Groundwater Elevation and Analytical Data (Template) Attachment A : CGRS ' Field and Reporting Methods and Procedures Attachment B : CGRS' Boring Logs & Well Construction Log Attachment C: Unified Soil Classification Descriptions ec : Ms. Rae Chrisman — NGL Water Solutions; rchristman@highsierraenergy.com Ms. Heather Barbare, WCDPHE; hbarbare@co.weld.co.us Mr. Ted Lopez — M3 Construction, LLC; tlopez@M3 -consult.com 0 I I wz NA_I "‘„,__...srl d i \ Hi . r .., ,. . . . I iitt ~ + Ise , . 4.:*),I 1 ` 1 - . ,v 1. a '"14. t % 1). I\ r" t. cr\%ir, kf\ 1 1 ,, ;e34 1, 1 t �-.\..i • of • i. 1 -4,-. ' ‘1,) i ts• -, le % ,, , 44 1 I,frr.. , .windmill r...e--%,../ -at -3 ,r , •1/4 J t b 1 i‘ :-,'\ (i) 4 . - 1 I. . r, ..„... sic...OD 1 L chc.:,.. ,. 22 - i C 71 {%•• ti 64 ,.. . 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Sevyes>!ty Reath { L.di es. erne , • '4 . ...... <•.,...„1/4...... -48) , 9 V .1 4544E^\ et . • 4.. - 4,- i ' - ) \ -%'`'' • ••• -‘4.1_ ,.,.\\.. \ -... ..1.. - •.<4: - \kc.N:1),,"\ic.:•\ WA -44444 4... - 4521 : p . _r r �, is 'cli M-_ _ { _ 1 FIGURE 1 ■ SITE LOCATION MAP NGL WATER SOLUTIONS C12 FACILITY COLORADO NE 1 /4. SE 1 /4 Sec 27. 5N. 63W NORTH KERSEY , COLORADO PROJECT DRAFT CGII$)? 1( )0 2000 12462-14804aa M S P ENVIRONMENTAL � CONSTRUCTION _ = DATE REVIEW COMPLIANCE • QUADRANGLE LOCATION SCALE IN FEET 10/23/2014 • `' z W N. 2 z a N z ex ZU W CL w co z p n _41) NZ D } N- rx (DI en ,` W — Q J V — ��ti . � � w � � � V ��• D ° 1L4 a -r . Z H N 1 l�L% Cep � UW CO o) L.L U cn w LL cis W 5- VD W C� Y co w wz w o U) z Qco o d- , O F- co in U � C in I CV H M a_ N Q Z d T er-------ik F- W I-- -\- ft z r in \hillr ZrFI Q _ _________) -\-- * - Co CO * Z -4 _ 3 o c yob! ss • r(‘.........._ 41 1, 4. kl ,... i ----________ TWis ...i, . .) . / / ,ii • p n (-) n CIVOel S330011 /7 . . • O O .> O / .k, .3, . ,, ., _____ _ f/ // , , _ - �j ,• , , . .. . ,,, //' , , . .• . • ., / J Q / / Nk / O I— . • 7f k Q U 3E O J (J1 I J J W I W can ,//l 'F O Q o H UJ /O CC 1 ° CC o Q . al / I i o Z O C/ X O U W CC W LLJ o c.I- / i z ° U)CD aC J / / / / % / L •••••1 C -co Q Q Q Q z z z z z O 0w C " =) _O O i� Q Q Q Q :� z Z Z ZSD W O r ca so Q Q Q Q Q C t- Z Z z z z O O 0 of � % Cn Q Q Q Q z Z Z Z Z ca co >. ca En- CO N U a) >. 'a Q Q Q Q Q >-, (Q O Z Z Z Z Z c0 ......- • < co o R3 -0 C C O C CD CO a) co N- 0 O) Z Z Z Z Z a) — _p r- E W a) co U E c ca p z C J D C O ° C) z z z z z o p >, E X eL L C a) CD Q Q Q Q Q Z .OE Z Z z z z U) W a) a a) Q Q Q Q Q _ z z z z z O a) c Q Q Q Q Q a) z z z z Z a) S CO 11-1 a' Q Q Q Q Q � Z Z Z Z z � � CD ct) C a) a 0 Q cv co 0 0 0 0 0 U)a� p zzz 2 2 2 2 - o � cn 2 Q zzz ATTACHMENT A CGRS ' Field and Reporting Methods and Procedures ATTACHMENT B C- 12 Facility Soil Boring Logs & Well Construction Log • EXAMPLE FIELD BOREHOLE LOG for C- 12 Facility � BOREHOLE NUMBER � FIELD BOREHOLE LOG . CG RS MW-X PROJECT NUMBER :• 1 -8019- 10079ad TOTAL DEPTH : 30' PROJECT NAME •• MW'X TOP OF RISER : 94 . 19 LOCATION : Weld County DRILLING CO : Drilling Engineers Inc. STATIC WATER LEVELS ( BGS) DRILLING METHOD : HSA Time DRILLER : Rob Date • LOGGED BY : Mr . Environmental Water Level 20 . 88 20 . 84 START : COMPLETED : Casing Depth 30 . 00 S cci a) a E �, NOTES WELL WELL F- Z DESCRIPTION ' ( ppm )m } p CONSTRUCTION DESIGN a� o a) a) = ' Ea. a a a a o E E w a3 co cu co u) u) m U) U) 0 0 T T ;T �' T . , a Lockable Cap _ SILTY SAND : Tan , very fine . T. T 717 T .T. ' '-�G ,, Protective Casing dense, moist (SM ) T T. -17 :1-. 17 / T. T. T. Concrete T. 717 0 : '7` 5 T. T.. T -r T. T. .T. 717 T • 2" SCH. 40 PVC Riser TT. TT. T • f' %' _ T. T .T. T .T. ' , 717. 717 ... TT .T. TT Bentonite SB 1 19 24 9 3.6@5' bgs TTT .TT %'. i T. '717 T �� T, T .T. TT %' .- T .T. TT. T . T T T T- / : 0 ; T. ' 'T. ' T - T. T T. T T /I , 0 : MI T TTT. ' . �.." T T T. T .T. ' SB 2 14 24 21 - 10 4. 1 10' b s •' ' ' ' • • ' • _ SAND : Tan, fine-grained , dense , @ 9 • • • • • • • ' • • . •. • • • • . . • • . • • • • • • moist to wet 20' bgs (SP) •• • • • • • • • • • • • • • • • • • • • . • • • • • • • • • • • • . • . • • • • • . • • • • . • • • ••• •••. ••••• • . ••• ••• ••• ••••• . .••••••••• ,•••••••••••••• • • • • • ••• ••• ••• ... ••.••••••••••• . • . •• ••.•• •.•. •. • • ••• •••••• •• •• • • •••••••••.'l • • • •- • • • . •• •• •• • •• . • • • . .. • I ••••••• • •••• • • - • • • •. • • •. • •. - 15 • • . . • • . . •• •• •• •. •• n • . . . . . . _ • • • SB 3 23 24 21 4 .4 @ 15 . •• . • • • • • • • • ••••• ••• •• • ••• •• •• •• • :�_ bgs: Sample • • • • • • • • ••• �:: • • • • • • • Retained for • • • • • • • • • .•, . . . . . . . . • - Analysis . . . . . . . .• • •• • • • • • • • • • • • • • • • . • • • • • • • • • • • • • • • • • • • • • • • • • • :4-•:14---- 10/20 Silica Sand -20 •�••• ••• • •�••• . SB 4 14 24 19 2 .6 20 s - . @ , bgs ■ _ SANDY CLAY: Brown, slightly : ., • plastic, stiff, fine-grained , saturated `' ■ • r• ■.. ■ '- • • :: _• • . . • •r r • • • • • • • • • ' • • - • . . . . . 4 - ..,25 r ■ ■ • 1 :5 • • ■ •. . � 2" SCh 4Q PV Screen r . . . C Sc een : , " V Village SB 6 21 24 24 ' It End of Boring @ 30' bgs CGENERGY tEvwu© METHODS AND PROCEDURES NGL Water Solutions DJ LLC ; C12 Injection Facility NE 1/4, SE 1/4, Sec. 27, T5N, R63W WCR 388 Kersey, Weld County, Colorado CGRS Project # 1 - 12462- 14804aa Soil Borings Soil sampling will be conducted in accordance with ASTM : D 1586-08a. Using this procedure, a 2-inch O. D. split-spoon sampler will be driven into the soil by a 140-pound weight falling 30 inches. After an initial set of 6 inches, the number of blows required to drive the sample an additional 12 inches, known as the penetration resistance (N value), will be recorded. The N value is an index of the relative density of cohesionless soils and the consistency of cohesive soils. Soil Classification/Characterization As samples are obtained in the field, they will be visually inspected and classified in accordance with ASTM : D 1488-84. Representative portions of the samples will then be retained for further examination and for verification of the various strata, the N value, water level data, and pertinent information regarding the method of maintaining and advancing the boring will be provided. Charts illustrating the soil classification procedure, descriptive terminology, and symbols used on the logs will be provided . As samples are collected, they will be examined for evidence of petroleum hydrocarbons using visual appearance and by screening with portable photoionization detection equipment. Decontamination To avoid potential transport of contaminated materials to the project site, all drilling equipment and down- hole tools will be steam cleaned prior to mobilization. To prevent cross contamination between soil borings or monitoring wells, all down-hole equipment will also be steam cleaned and rinsed with water between soil borings. Monitoring Well Construction Monitoring wells will be installed utilizing the following general construction criteria: • borehole diameter: minimum 2.0 inches push probe / 6.25 inches conventional boring • well diameter: 1 inch for push probe / 2 inches for conventional boring • estimated depth : ≥ 5 feet below static groundwater table • casing material : schedule 40, flush thread PVC 1301 Academy Court Fort Collins, CO 80524 T 800-288-2657 F 970-493- 7986 www.cgrs.com CGRS, INC. NGL Water Solutions DJ , LLC — C12 Injection Facility • well screen : 1 inch inside diameter (I . D.) for push probe / 2 inch I . D. for conventional boring, #0.01 slot PVC • estimated screened interval : 10 feet above and 10 feet below the groundwater table (may be adjusted based on total depth and water table position) • annular pack: 10-20 silica sand • protective casing: 4" aluminum above grade mount, locking cap; or 8" steel flush mount traffic rated manway . • annular seal : cement grout and bentonite pellets. Groundwater Sampling All borings where groundwater is encountered will be sampled from the suspected cleanest to the most contaminated according to the protocols listed below. All pertinent information will be recorded on a sampling information form . Field Protocol Step 1 - Measure the water level inside the well . Step 2. — Measure total depth of monitoring well . Step 3 . — To determine well volume, use the table that displays the casing volume per foot factor for the appropriate diameter well . The water level is subtracted from the total depth, providing the length of the water column. This length is multiplied by the factor in the Table 1 which corresponds to the appropriate well diameter, providing the amount of water, in gallons, contained in the well . Once the volume has been calculated multiply that value by three in order to calculate three bore volumes required for purging before collecting a representative water sample. TABLE 1 WELL CASING DIAMETER vs. VOLUME WELL CASING DIAMETER (inches) vs . VOLUME (gals.)/FEET of WATER CASING GALLONS/FT 1 0 .041 2 0 . 163 3 0 .367 4 0 .653 1301 Academy Court Fort Collins, CO 80524 T 800-288-2657 F 970-493- 7986 www.cgrs.com CGRS, INC . NGL Water Solutions DJ , LLC — C12 Injection Facility WELL CASING DIAMETER ( inches) vs . VOLUME (gals.)/FEET of WATER 5 1 .02 6 1 .469 7 1 .999 8 2 .611 9 3 . 305 10 4 . 08 11 4 .934 12 5 . 875 * Table 1 from U.S. EPA Region 9 Laboratory, Richmond, California; Field Sampling Guidance Document 41220, page 14 Step 4 - A dedicated polyethylene bailer will be used to develop each well . Three bore volumes will be evacuated from each well prior to sampling. Step 5 - Collect water samples. Water samples will be collected using a polyethylene bailer. Step 6 - Store samples in a cooler on ice (44° Celsius) for transport to the laboratory . Follow all documentation and chain-of-custody procedures. Step 7 - Clean equipment. Water level measurement equipment will be cleaned with ethanol followed by a distilled water rinse. Upon completion of soil or groundwater sampling, a chain of custody log will be initiated. A copy of the chain of custody will be returned to the project manager. Chemical Analysis An approved contract laboratory will provide stationary laboratory analysis. The following analyses will be performed : Soil Analyses: Initial well installation Chemical Parameters Method Used Benzene/Toluene/Ethylbenzene/Total Xylenes ( BTEX) EPA - 8260 B 1301 Academy Court Fort Collins, CO 80524 T 800-288-2657 F 970-493- 7986 www.cgrs.com CGRS, INC. NGL Water Solutions DJ , LLC — C12 Injection Facility Soil Analyses: Initial well installation (Continued) Chemical Parameters Method Used Total Volatile Petroleum Hydrocarbons EPA — 8260B Water Analyses (Quarterly Groundwater Sampling) Chemical Parameters Method Used Benzene/Toluene/Ethylbenzene/Total Xylenes ( BTEX) EPA - 8260 B Total Dissolved Solids (TDS) EPA - 160. 1 Chlorides EPA - 300. 1 Sulfates EPA — 300.0 RCRA 8 Metals EPA - 6010 Field Parameters Dissolved Oxygen (mg/L) Oxidation Reduction Potential (mV) Temperature (Deg. C) pH Specific Conductance (mS/cm) All in-situ field parameters will be collected in each monitoring well using a YSI Model 556 multi - parameter or similar type direct read probe . Groundwater Trend Analyses Groundwater concentrations are measured in site monitoring wells on a quarterly basis. Upon receiving groundwater analytical data from the laboratory the data is inserted into an historic groundwater analytical data table . Chlorides, TDS, and sulfate concentrations will be evaluated to ensure that the current concentrations in each well do not exceed 1 .25 times the average background conditions. If results indicate that a sample exceeds maximum allowable concentrations (MACs), NGL will coordinate with the Colorado Oil and Gas Conservation Commission (COGCC) and Weld County Department of Public Health and Environment (WCDPHE) no more than 14 days following receipt of the laboratory data to 1301 Academy Court Fort Collins, CO 80524 T 800-288-2657 F 970-493- 7986 www.cgrs.com CGRS , INC . NGL Water Solutions DJ . LLC — C12 Injection Facility develop an acceptable assessment and remediation program, as necessary. This assessment may include, but may not be limited to, laboratory re-analysis and/or re-sampling of the well . The presence of BTEX above MACs will prompt a complete evaluation of site operations since the last sampling event, and prompt further subsurface investigation if warranted. Groundwater Elevation Measurements The following outlines our standard groundwater quality sampling methodology . Before purging any of the soil test borings or monitoring wells, water level measurements must be taken. Measurin;; Point Establish the measuring point for the well . The measuring point is marked on the north side of the top of the monitoring well riser. The top of the riser is normally a 2-inch schedule 40 PVC casing inside a locked protective casing. The measuring point should be described on the groundwater sample collection record . Access After unlocking or opening a monitoring well , the first task will be to obtain a water level measurement. Water level measurements will be made using an electronic water level indicator. Depth to water and total depth of the well will be measured for calculation of purge volume. Measurement To obtain a water level measurement, lower a decontaminated electronic water level probe into the monitoring well . Care must be taken to assure that the electronic probe hangs freely in the monitoring well and is not adhering to the well casing. The electronic probe will be lowered into the well until the audible sound of the unit is detected and the light on the electronic sounder illuminates. At this time, the precise measurement should be determined by repeatedly raising and lowering the probe to obtain an exact measurement. The water level measurement is then entered on the groundwater sampling collection record sheet or groundwater level data sheet to the nearest 0 .01 feet . Decontamination The electronic probe shall be decontaminated immediately after use by wiping with isopropyl alcohol- soaked paper towels and rinsed with distilled water. Always proceed in order from the suspected cleanest well or soil test boring to the suspected most contaminated one. Purge Volume Computation All soil test borings, monitoring wells, and temporary monitoring wells will be purged prior to sample collection . Depending upon the rate of recovery, three to five volumes of groundwater present in a well or 1301 Academy Court Fort Collins, CO 80524 T 800- 288 - 2657 F 970-493 - 7986 www.cgrs.com CGRS, INC . NGL Water Solutions DJ , LLC — C12 Injection Facility borehole shall be withdrawn prior to sample collection . If a well or borehole bails dry, the well or borehole should be allowed to recharge and a sample taken as soon as there is sufficient volume for the intended analysis. The volume of water present in each well or borehole shall be computed using the two measurable variables; length of water column in soil boring or monitoring well depth and diameter. Purging and Sample Collection Procedures Bailin • Obtain a laboratory decontaminated disposable bailer and a spool of nylon rope or equivalent bailer cord. Tie a bowline knot or equivalent through the bailer loop. Test the knot for adequacy by creating tension between the line and the bailer. Tie again if needed . New rope and bailer will be used for every sample or purge event. New clean latex gloves will be used when touching the rope or bailer. • Spread a clean plastic sheet near the base of the well . The plastic sheet should be of sufficient size to prevent bailer or bailer rope from contacting the ground surface. • Place the bailer inside the well to verify that an adequate annulus is present between the bailer and the well casing to allow free movement of the bailer. • Lower the bailer carefully into the well casing to remove the sample from the top of the water column, taking care not to agitate the water in the well . • Pour the bailed groundwater into a bucket. Once the bucket is full , transfer the water to a barrel and contain on-site. • Raise the bailer by grasping a section of cord, using each hand alternately . This bailer lift method will assure that the bailer cord will not come into contact with the ground or other potentially contaminated surfaces. Sampling • Instructions for obtaining samples for parameters are reviewed with the laboratory coordinator to insure that proper preservation and filtering requirements are met. • Appropriate sample containers will be obtained from the contract laboratory for each individual analyses requested. After samples are collected, they will be put on ice in coolers (4°C). Care will be taken to prevent breakage during transportation or shipment. 1301 Academy Court Fort Collins, CO 80524 T 800-288-2657 F 970-493- 7986 www.cgrs.com CGRS, INC . NGL Water Solutions DJ , LLC — C12 Injection Facility • Samples collected by bailing will be poured directly into sample containers from bailers. The sample should be poured slowly to minimize air entrapment into the sample bottle. During collection, bailers will not be allowed to contact the sample containers. • Upon completion of sampling a chain-of-custody log will be initiated. Chain-of-custody records will include the following information : project name and number, shipped by, shipped sampling point, location, field ID number, date, time, sample type, number of containers, analysis required, and sampler' s signature. The samples and chain-of-custody will be delivered to the laboratory. Upon arrival at the laboratory, the appropriate laboratory personnel will check in the samples. Laboratory identification numbers will be noted on the chain-of-custody record. Upon completion of the laboratory analysis, the completed chain-of-custody record will be returned to the project manager. Field Cleaning Procedures For all equipment to be reused in the field, the following cleaning procedures must be followed : • Disassemble the equipment to the extent practical . • Wash the equipment with distilled water and laboratory-grade detergent. • Rinse with distilled water until all detergent is removed . • Rinse the equipment with isopropyl alcohol , making sure all surfaces ( inside and out) are rinsed. • Triple rinse the equipment with distilled water. Laboratory Selection The project manager should consider the following factors when selecting a laboratory : • Capabilities (facilities, personnel, instrumentation), including: • Participation in inter-laboratory studies (e.g. EPA or other Federal or State agency sponsored analytical programs); • Certifications (e.g. Federal or State); • References (e.g. other clients); and • Experience ( UST, RCRA and other environmentally related projects). • Service • Turnaround time; and • Technical input (e.g. recommendations on analytical procedures). 1301 Academy Court Fort Collins, CO 80524 T 800-288-2657 F 970-493- 7986 www.cgrs.com CGRS, INC. NGL Water Solutions DJ , LLC — C12 Injection Facility The project manager is encouraged to gather pertinent laboratory-selection information prior to extensively defining analytical requirements under the project. A request may be made to a laboratory to provide a qualifications package that should address the points listed above. Once the project manager has reviewed the various laboratory qualifications, further specific discussions with the laboratory or laboratories should take place. In addition, more than one laboratory should be considered. For large-scale investigations, selection of one laboratory as a primary candidate and one or two laboratories as fall -back candidates should be considered. The quality of the laboratory service provided is dependent on various factors. The project manager should be able to control the quality of the information (e.g. samples) provided to the laboratory. It is extremely important that the project manager communicate to the laboratory all the requirements relevant to the project. This includes the number of samples and their matrices, sampling schedule, parameters and constituents of interest, required analytical methodologies, detection limits, holding times, deliverables, level of QA/QC, and required turnaround of analytical results. Field and Laboratory Quality Control General Quality control checks are performed to ensure that the data collected is representative and valid data. Quality control checks are the mechanisms whereby the components of QA objectives are monitored. Examples of items to be considered are as follows : 1 . Field Activities: • Use of standardized checklists and field notebooks; • Verification of checklist information by an independent person ; • Strict adherence to chain-of-custody procedures; • Calibration of field devices; • Collection of replicate samples where applicable; and • Submission of field blanks, where appropriate. 2. Analytical Activities: • Method blanks; • Laboratory control samples : • Calibration check samples; • replicate samples; • Matrix-spiked samples; 1301 Academy Court Fort Collins, CO 80524 T 800-288-2657 F 970-493- 7986 www.cgrs.com CGRS , INC . NGL Water Solutions DJ , LLC — C12 Injection Facility • " Blind" quality control samplers; • Control charts; • Surrogate samples; • Zero and span gases; and • Reagent quality control checks. I Management of Waste Material During the advancement of soil borings, decontamination of field equipment and development of soil borings or temporary monitoring wells, waste materials will be generated . This section addresses both the management of solid waste (soils) and the liquid wastes generated . Soil generated during remedial activities will be containerized in 55-gallon drums or stockpiled on an impermeable membrane and covered with plastic, which ever is most appropriate. The waste characteristics of the soil will be determined by appropriate analytical methods and the soil disposed of in accordance with state and federal regulations. Water generated during field activities will be containerized in storage vessels that are compatible with the suspected or identified contaminant(s). If required, the water will be analyzed by appropriate analytical methods to determine its waste characteristics. The wastewater generated will be disposed of at a State or Federally regulated facility. A portable aeration system can also be utilized to eliminate volatile contaminants in wastewater. Reporting After data has been compiled and analyzed, CGRS submits a summary report to NGL Water Solutions DJ , LLC at the following address : Mr. Josh Hamblen NGL Water Solutions DJ , LLC 8203 West 20th Street, Suite A Greeley, Colorado 80634 Furthermore, CGRS submits an electronic copy to the following recipients and email addresses : Mr. Josh Hamblen; NGL Water Solutions DJ , LLC ; Josh . Hamblen@nglep .com Additional reports may be submitted upon the request of, or permission from, NGL Water Solutions DJ , LLC . This includes the anticipated submittal of quarterly reports to the Weld County Department of Public Health and Environment. 1301 Academy Court Fort Collins, CO 80524 T 800- 288- 2657 F 970 -493 - 7986 www .cgrs.com ATTACHMENT C Unified Soil Classification Descriptions ABBREVIATIONS USED IN BORING LOG DESCRIPTIONS ROCK '' SOIL COLOR DENSITY l << ' !::,1 }, F ,I STRUCTURE QUANTIFIERS f'?i MISC . Light Gray ( N7) ICI i i ` In Dol - Dolomite - Clay itil Bk - Black Dn - Dense 1 Bd - Bedded Tr - Trace <5% jGw - Groundwater Ls - Limestone I St - Silt ! Br - Brown Lo - Loose 11114 h Bik - Blocky - 5-10% ' �' - � So Some ; ,1 SI Slightly ,�, .. 11111 ; H 9 Y Sh - Shale i• y Fis - Fissured isw/ - With 15-30% � � Td - Total de th � Sa - Sand '; Gr - Gra ; Hd - Hard I:.F :�1� P ! ti i i Ss - Sandstone uli Gv - Gravel 111'1 Gn - Green Sf - Stiff i Fre - Fractured `lji Vy - Very Medium Gray N5 ti i`iji ill IlitlitTlikiiii tMiiflthNdtfl'iIllll*U,iftil • : 1. ' , ;it'll ( ) Mds - Mudstone {ftcb - Cobble : }il Rd - Red St - Soft ll Grd - Graded dsff'iiiE'U,it¢'}ll - dorI, i i !, h} i ;,{: rl'FF1::,;If ., ,;ui!!3 Od O �, . • • , , - F!i l t � Lrh ';' k 5,�. t 6 . t� tl',k Sts - Siltstone Iti, Bd - Boulder !jiYw - Yellow ill• Jts - Joints 1111 GRAIN SIZE S - Strong r{�'��'� \ti " ` ` y � ,)zt °� } i I 1lfi t 11 it Wt - White,,,I, iil1 Lam - Laminated ill F - Fine ''r iI Hit li#� :tr. .,„• 4; Len - Lensed li' M - Medium II. Dark Gray ( N3) II lit I I Str - Stratified ' C - Coarse i,. , . . . : l ��i� ; . i•3l: .. .... . . .... : . ., , . ! .,. . i :F { s F F i tt.f ! , '••F ' t •,:',• .•t•, t! •t , , ! t• i. t3r ! , �i • t �' ,. s.• • t i : !. } '! tt :i` :: ::,' 1�,II#iJifawllli.11l�lllll.li,#�►:,f1�11�#�.t�li>rF:iiltt},� S≥lih€) ,l��iFl!jj1F{ li{µl4, �t;! t.t i t .1F� . ,,. . y, g� {� ��, y .2(I , Y + ! , • iS #, ;• , : �• {� t�F,Fy1i{ �,}}i i + ,.;.i� .f: • h�,1 , • ,. : t (, .t )t�•, ,F�.t • � . • ,,. ,.,:::;it. FFa13Gii i� tft r F , S i , .!, F . .tl��1F1�{:ltllttiY.A1'1::'�lreF.,fIF�C,,.1.i�illilttzr�lel�t.Ftll.F,!!#r�tFEIE,I��}F1f}�,((SlIti9Ft��.l;cif;tl:rl. tligiiie�>3ltl.F.hilt:ltlllliFf`aslittiii�UrlFaF,;llllif:ititllF3Y�C1diFl3,iFNF3Ft111 tftti{1Sfltal,tl,iilll�sltith::ia:•t „lJl�:l:i�l:ltlAl:ai��l,�:fkt,!!?iiitllF:F,:,:•, : . E;',, ..*:‘:H - Description of soil sample: ( 1 ) Major constituents (2 ) Group name (3) Color (4) Moisture (5) Relative density (6) Minor constituents (7) Environment of deposition (8) Miscellaneous information Example of description: SiCI (CL) - GnGr, SIM, Sf, Tr F-M Sa, Oc C Gv, Till , Gas Od Olive Gray (5Y4/1 ) Translation of description : SILTY CLAY (CL) - Greenish gray, slightly moist, soft, trace fine to medium sand , ..t occasional coarse gravel , till, gasoline odor t tlFJFllt:Stii it13liffi..F i att.F!•, t ! .ii,. ttii! . i S l� ,� ' ! 1 !: i } i� � .:.i . , }.; t G t (• t r !. 3 t , t i 1F t . : t ' •' i + 'F 'i`4' � i ';r S '4�'i•'i. t . tFl •'• , ttt is t ! 4 F , , F �. .•i 1tF.i (li�ti!t3rtE. ti#,lt311tttlk. tliti itF.t31 tell#ii{. F3i:i.1,Uiit3l�ilFl:t�il4l i1i#IdSlfibl.�Fti,,.fella_l..ilttit.etiFta�Ff1}i{.,lF1NilFttl�irtFlit��tktitiafitll„i�iiFltaf[iiitlsi�tlsFitEt..t]i!titf t�ati,tllll,tir!#li.itlt�l�tt.t.ttl.11tlllt.ttSE,FFFt�F:llltH.tit{1#�jt{itFl.jF,F1F:il.F.v�tilf:g.#111..t,iFt,,..ti.t?xttitt:tlr..:�t1>�ci<i113,,..:141,I,.,�1hi:#d1i+,F,stEttilltFi!lSflill MOISTURE D - Dry Absence of moisture, dusty, dry to the touch Greenish Gray (5G6/1 ) M - Moist Damp but no visible water W - Wet Visible free water, usually soil is just above water table S - Saturated Water is dripping from sample, soil is below the water table !:iiiFt ;i ? t: i i3 }?�° ��`y } I it , ,t{ i i! i{! i1 t t! : } i t t i , t ,1 t t t•t t t is 4 t { lii " •ii t , t F .r t 5' { •F• F ' i7} , : I ` 'i tfr'E Ut} r• Ft ' ., . .• .It l�Il;.Ii.3li .Ii id .Iili f7rip,tFl. II18i.#>If,t..�#ltt�#tl.ttli i..lililii.t..tf�lill.�t.'t'�}t.i•ill.11t�li<` lhi�.1.ti�i.t,tlfrell#.iii.##tl.({.h.,.l��Fi•�l)t!�#l�,l�•!f#..ftl.�lF�,tt�l�er ,ilt�ifMi�t,r,3ii1�3t11lltitF.+#1#,'i1i#ii�liliihiFtl,tit�ll3�lsil�tlt##llN3�lf�llli�titlil�•�dt#',:�ill1�#143i1�4.11iuN><!1!fi?l��k�:N,i,�€:5i,ltll:i.�lltl,,�til iii,..}.art•:,!i41t#�!},:tii:►hllt,�l1►#f<t�!#�! STANDARD PENETRATION TEST (SPT) i GRAIN SIZE (inches) Light Brownish Gray ti, SOIL BLOWS/FT * DENSITY/CONSISTENCY all Fine sand = 0.0029-0.017 . - (5YR6/1 ) Sand <2 very loose t ?if Sand 2-10 loose /HI Medium sand = 0.017-0.079 • p Sand 11 -30 medium dense il Sand 31 -50 dense iii Coarse sand = 0 .079-0. 19 • O Dusky Red Sand >50 very dense lit i (5R3/4) ft ip Clay/silt <2 very soft ill Clay/silt 2-4 soft i t Fine gravel = 0 . 19-0.75 1. 0 till Clay/silt 5-8 medium stiff ill Clay/silt -9-15 stiff 'ill Coarse gravel = 0.75-3.0 Dark Yellowish Orange Clay/silt 15-30 very stiff 'Ill Y ,i ( 10YR6/0) Clay/silt >30 hard Ii Cobble = 3.0-12 .0 �ti( i * These density and consistency values are to be utilized with the SPT I only. The SPT consists of driving a 2-inches O.D. split spoon sampler Boulder = >12.0 a depth of 18 inches with a 140-Ib. hammer falling 30 inches. The ii-IP ii values for the 6 to12 inches and '12 to 18 inches increments are iill combined to obtain blows/ft. 1 `' Light Brown (5YR6/4) i, : I :. .::.: il , ,•••:::>, a n: I i ! r : I F F 3:.. t. i : Sti !• tf1 t. F4 , ' j 4t 1 • t } t! t dli : l r 1 ! 3 ! { tit I ! : F ' 4 :• { '} N, 'g• : : Fill ,.11,l,.t t.tl,.:,lt.,,., s ,..,,. .•.I..{...{.#l,til.tuti.illt,lHl,ll,1,411,t1t..,�#tllellJdll�.t#i��lll.11)!.t?Jl�.t,l1!!!tl#t$!;}itt�:it43�tF1,1,1411!$Bill,l!#i})t�iil,l�l�3≥Ellf.,)llililhil,tttill.iii.l4tt<li,#H.,FE_I4i<lil#!t.�l,fill:#E111tftlitit�fiiU!l.,loll(!!illl�ti!!!!!il1l��illl;U.#!ll:Ei.11#lr�ll,,tllldllillitittllll,,lllLtlllUlfll:h:lfjlilll!!il#.is1tElltill\lllii�llll;i#alflifiKlll}i,�tFlliial E##,!�#:!#t�#ilill4lliiil#,E:et,Ft PLASTICITY , Nonplastic A 1 /8-inch ( 3mm ) thread cannot be rolled at any water content. Low The thread can barely be rolled and the lump cannot be formed when drier than the plastic limit. Medium The thread is easy to roll and not much time is required to reach the plastic limit. The thread cannot Moderate Brown be rerolled after reaching the plastic limit. The lump crumbles when drier than the plastic limit. (5YR3/4) High It takes considerable time rolling and kneading to reach the plastic limit. The thread can be rerolled several times after reaching the plastic limit. The lump can be formed without crumbling when drier than the plastic limit. than the plastic limit. iIt u 4 ! , 1' !I i 1Fh } t• . t. . . :... .. .: : .. :.:.: :.. i�: i i :'i:::,..-v {f : ,, •a. • t t , i• :: • ...: , tt i t. ! , . . .t { c : , :1#ih:i3i{, it hill tlllfi•1:"ti1 i( ni itit,i i.: ,!!t , i t S t tt. t�F�t : : ii : : : 1.:.: . : ..: : : :.: :•: 1 i•1 j b �g3'�F1 _{}.,.]ti+1 .1 ...1. t} •t ial iti.t F 1 }� pMI i ee l pt.:#1 i a ,,t F J13.3 r . F� t F .. t } t: t . , t i :t St1 ii{I,1 1 .�t t�li)i} I F'i 1 , , is�F , , flit, F ,.t W t , . . _ , , , , , , , , , , , Ilil, '•f{ir, .IiFitf,l.ti[!F ,rIFI:F.Jt.l.�e iifi{...y.fy{r�1I.1.,tFti.t�lii�i,illliat�i'riFl=ltifi..11ltl..INC...i.i.,F,.tl.tii,.h,ii•I�1Hi:•�Eil1N��Fli§bi�i�tFlifi�iil�.F:if,Ji��if�f11�!#FF,It>.�1.:�:�l,�i#III:IdSit€iliilf.f�lti,X31(IFI,iF:i1iF:N>l�lltitl31�1��1lli�ijfi�i,iiinin111}I,14E STRUCTURE Dusky Brown Stratified Alternating layers of varying material or color with the layers at least 6mm thick; note thickness. (5YR2/2) Laminated Alternating layers of varying material or color with the layers less than 6mm thick; note thickness. Fissured Breaks along definite planes of fracture with little resistance to fracturing. Slickensided Fracture planes appear polished or glossy; sometimes striated . Blocky Cohesive soil that can be broken down into small angular lumps which resist further breakdown . Lensed Inclusion of small pockets of different soils, such as small lenses of sand scattered through a mass of clay; note thickness. Homogeneous Same color and appearance throughout. Projermr100forms-boringlog\Guide-boringlog\BLGUIDE113/28/2008 \ JMF I GENERAL NOTES DRILLING AND SAMPLING SYMBOLS TEST SYMBOLS SYMBOL DEFINITION SYMBOL DEFINITION HSA 3 '/ " I . D. Hollow Stem Auger W Water content - % of dry wt. — ASTM D 2216 _FA 4", 6" or 10" Diameter Flight Auger D Dry Density — Pounds Per Cubic Foot _HA 2", 4" or 6" Hand Auger LL, PL Liquid and Plastic Limit — ASTM D 4318 _RC Size A, B , or N Rotary Casing Pq Penetrometer Reading — Tons/Square Foot CS Continuous Split Barrel Sampling G Specific Gravity — ASTM D 854 DM Drilling Mud SL Shrinkage Limits — ASTM D 427 SB 2" O. D. Split Barrel Sample OC Organic Content — Combustion Method _L 2 '/2" or 3 '/2" O. D . SB Liner Sample PS Percent Swell _T 2" or 3" Thin Walled Tube FS Free Swell — Percent B Bag Sample K Coefficient of Permeability — cm/sec NSR No Sample Recovered , classification based on action of DH Double Hydrometer -- ASTM D 4221 drilling equipment and/or material noted in drilling fluid or on MA Particle Size Analysis — ASTM D 422 sampling kit. R Laboratory Resistivity, in ohm — cm — ASTM G 57 NMR No measurement recorded , primarily due to presence of PM Pressuremeter Test drilling or coring fluid . V Water Level Symbol BGS Below Ground Surface WATER LEVEL Water levels shown on the boring logs are the levels measured in the borings at the time and under the conditions indicated . In sand , the indicated levels may be considered reliable ground water levels . In clay soil , it may not be possible to determine the ground water level within the normal time required for test borings, except where lenses or layers of more pervious waterbearing soil are present. Even then , an extended period of time may be necessary to reach static levels. Therefore, the position of the water level symbol for cohesive or mixed texture soils may not be truly indicative of the ground water table. Perched water refers to water above an impervious layer, thus impeded in reaching the water table. The available water level information is given at the top right of the boring log . DESCRIPTIVE TERMINOLOGY DENSITY TERM "N" VALUE CONSISTENCY Lamination Up to %2" thick stratum TERM Layer '/2" to 6" thick stratum Very Loose 0-4 Soft Lens '/2" to 6" discontinous stratum , pocket Loose 5-8 Medium Varved Alternating laminations of clay. silt, and/or fine Medium Dense 9-15 Rather Stiff grained sand , or colors thereof Dense 16-30 Stiff Dry Powdery, no noticeable water Very Dense Over 30 Very Stiff Moist Below saturation Wet Saturated , above liquid limit Waterbearing Pervious soil below water 0 Standard "N" Penetration : Blows Per Foot (blowcounts) of a 140 Pound Hammer Falling Below 30 inches on a 2 inch OD Split Barrel Sampler RELATIVE GRAVEL PROPORTIONS RELATIVE SIZES CONDITION TERM RANGE Boulder Over 12" Coarse Grained Soil A little gravel 2- 14% Cobble 3" — 12" With Gravel 15-49% Gravel Fine Grained Soils 2-7% Coarse %" — 3" 15-29% + No . 200 A little gravel 8-29% Fine #4 — 3/" 15-29% + No . 200 With gravel Sand 30% + No. 200 A little gravel 2- 14% Coarse #4 - #10 30% + No.200 With gravel 15-24% Medium #10 - #40 30% + No.200 Gravelly 16-49% Fine #40 - #200 Silt & Clay #200 Based on Plasticity Conversion Factors - U.S. customary to SI Approximate To convert from To Multiply by Range of Uniaxial in m 0.025 4000 Compression ft n 0. 304 8000 Strength kg/cm2 in2 mm2 645. 160 000 Class Strength Field Test (tons/ft2) ft2 m2 0 .092 903 I Extremely Many blows with geologic hammer >2000 acre ft2 43 560. Strong required to break intact specimen. ft3 m3 28. 316 847 x 10-3 H I Very Strong Hand held specimen breaks with 2000 - 1000 quart (U . S . liquid) liter ( 1000 mm3) 0.946 353 hammer end of pick under more than gallon (U . S. liquid ) m3 3.785 412 x 10-3 one blow. gram dyne 980. 665 000 III Strong Cannot be scraped or peeled with knife, 1000 - 500 kg (force or mass) N 9.806 650 hand-held specimen can be broken with lb (mass) kg (mass) 0 .453 592 single moderate blow with pick. lb (force) N 4.448 222 IV Moderately Can just be scraped or peeled with 500 - 125 kips ( 1000 Ibs) kN 4.448 222 Strong knife. Indentations 1 mm to 3mm show ft/min m/min 0. 304 8 in specimen with moderate blow with pick. ft/min mi/hr 0.011 363 63 kip/ft kN/rn 14. 593 904 V Moderately Material crumbles under moderate blow 125 - 12 Ibift kg/m 1 . 488 164 Weak to with sharp end of pick and can be peeled atmosphere bars 1 . 013 3 Weak with a knife, but is too hard to hand-trim kg/m` N/m2 (Pascal ) 9. 806 650 for triaxial test specimen . kg/cm2 kN/m2 (kPa) 98. 066 500 kip/ft2 kN/m2 47. 880 260 iaiiiO tiliEl li � i�. �i piiii ►ltigiiil.. li i !llrtit j . ° ►€ l salt ? loll` itll hlilit iii t i kip/ft2 kg/cm2 0.448 244 Grade Symbol Diagnostic Features lb/in2 (psi) kN/m2 6. 894 757 Fresh F No visible sign or decomposition of discoloration. Rings under lb/in2 atmosphere 0. 068 046 hammer impact. lb/in2 ft of H2O 2 . 307 Slightly WS Slight discoloration inwards from open fractures, otherwise similar to cm`/sec in2/yr 4. 888 1 x 106 Weathered Fresh. T° F = 9/5 To C + 32° Moderately WM Discoloration throughout. Weaker minerals such as feldspar de- lb-in (torque) N-m 0. 112 985 Weathered composed . Strength somewhat less than fresh rock but cores kip-ft kN-rrn 1 . 355 818 cannot be broken by hand or scraped by knife. Texture preserved. ft/lb (energy or work ) joule 1 . 355 818 Highly WH Most minerals are somewhat decomposed. Specimens can be 3 3 !b/ft kg/rr� 16.018 460 Weathered broken by hand with effort or shaved with knife. Core stones present kip/ft3 kN/rn`' 157.087 616 in rock mass. Texture becoming indistinct but fabric preserved. g/cm3 Ib/ft3 62 .427 900 Completely WC Minerals decomposed to soil but fabric and structure preserved g/cm3 kN/m3 9.806 650 Weathered (Saprolite). Specimens easily crumbled or penetrated. Mohs' Hardness Common Object Residual RS Advanced state of decomposition resulting in plastic soils. Rock Scale Mineral for Comparison Soil fabric and structure completely destroyed. Large volume change. 1 Talc s Description for 2 Gypsum structural (2 .2 ) Fingernail Features: Bedding, Description for Joints, 3 Calcite Foliation, or Spacing Faults, or Other Fractures (3. 5) Copper penny Very thickly (bedded , More than 6 feet Very widely (fractured or jointed ) 4 Fluorite foliated , or banded ) 5 Apatite Thickly 2 - 6 feet Widely (5. 1 ) Geological hammer Medium 8 - 24 inches Medium (5.2) Pocketknife Thinly 2-1 /2 - 8 inches Closely (5.5) Window glass Very thinly 3/4 - 2-1 /2 inches Very closely 6 Feldspar Description for Micro- 7 Quartz Structural Features: . 8 Topaz lamination, Foliation, Description for Joints, 9 Corundum or Cleavage Spacing Faults, or Other Fractures 10 Diamond Intensely (laminated , foliated , or cleaved) 1 /4 - 3/4 inch Extremely close Very intensely Less than 1 /4 inch Projermr/00forms-boringlog/Guide-boringlog/BLGUIDE4/3/28/2008 \ JMF • CRITERIA FOR DESCRIBING ENVIRONMENTS OF DEPOSITION Loess Commonly nonstratified and nonconsolidated, composed predominantly of silt size particles, ordinarily with accessory clay and sand, and deposited primarily by the wind. Lacustrine Extinct lake deposits. Deposits may be gravel or sand along the former shores. Material deposited far from shore will be silts and clays. May find shell fragments in these deposits. Typically greenish to gray in color. Outwash Sand and gravel bedload material that comes to rest on the beds of streams of meltwater. Outwash is well sorted, commonly stratified, and exhibits vertical grading. Subtill Generally stratified and sorted deposits with convex upward surfaces with till deposits. Parallel to direction of ice flow. Till Nonstratified sediment carried or deposited by a glacier. Its outstanding characteristic is that it is not obviously sorted. It may consist principally of clay particles, or principally of gravel, or of any combination of these and intermediate sizes. Ablation Till Deposited from drift transported within or on top of a glacier. Less dense than lodgment till. Will exhibit significantly lower blow (Melt-out) counts. Lodgment Deposited at the base of a glacier, found directly overlying bedrock. Typically will be very dense and exhibit high blow counts. Till + :irt•�y I tN th sfltJl7Yt�'; ; hiit is ! . rt;tJ +s : ; ! '(:!t p,•tt,•u •s :jtl:is ::t;i'i '' ^:+?: ':v::•11'r::,? ,:•:•r:;!• ,7G:ryt :::•:: •: f , t t::•a: : ;. +J` •sti ..tNnn t: r. .-. � ((.�, .. t1, •{lj+.•.. .Js{':;if , t Z. " •.:.Il ..,:. t :.Jt .:.:Z(. . .t...r. I: t i ...r. . 'I•'' >: r ,• ,t •t• • , .. :ati . .t}tt'. yHi'.[if t tt... r.ii. t I tr '(� .t !({Z I. , r .•. ....}Ivi , iOn !l,:t'tn::.tt ... .�. r .. .. .i.'ll.:•:•... ...t ' 1,.:: :: .. . . . . . 1 ti. . .t y `1 t,iligl�} !�{{ ��{j�j 5 r}, R r .i 1 •'1� 'iriJi ;` ,iti t t rlti ::e t • urt ' : t •: 7: t !r r 1 t . . ..i.t l.i ��1 .�..'21t'..{.ti.:1N,t4� t . t ,. . , . r .. . 1 ..ir.. .tt i...:., ,i,..t,. . ,.•7Ffj�:.tC�tlliftlfitiiZl*!TC'��I717SS,t1� "h{tl tt.,i!?{?{i}!J4!iii��llriY�i�l:'E tlCl��,,ii?fi{ t�1 t n 1 ��i•tsl'�!i• J z,•,e ;. � itt�t')ytgl visit •7 �{}•Zyy�}`r?�•},�,;��1 •t7J ttt}N+ts�g�•�g{�1; p.x ii{�77�I7lt�j,7,•t;'lgt�i 71;I t�ii `�' • � l.�i�.,J.ir;f=�`�, s iF.�111��:�r,J:.��{�1.�1�..ilEili,JPI��fSI'�!�9flttt?[1Z:t!t�'?i5�titi?��fJ.i�ItN>tY.4'1R+iitif'.t�� Ift1+t��Ff2??�:iili!?Fl1'�d"1t:�tY•lit,: IDENTIFICATION OF FINE-GRAINED SOIL FRACTIONS FROM MANUAL TESTS Typical Name Dry Strength Dilatancy Reaction Toughness of Plastic Thread Plasticity Description Sandy silt none-very low rapid weak-soft none-slight Silt very low-low rapid weak-soft none-slight Clayey silt low-medium rapid-slow medium stiff slight-medium Sandy clay low-high slow-none medium stiff slight-medium Silty clay medium-high slow-none medium stiff slight-medium M Clay high-very high none very stiff high Organic silt low-medium slow weak-soft slight Organic clay medium-very high none • r;',,t • : :.. . .. ..... .r+- t + .,•: '. ;:•1 �:.t • f .: r..t � ,.. medium stiff medium-high ,.1 .:1 . .I, ; �' 1 r 1 : , it t:. .. Ua ' 7.7!' :':• ti,r...ia ,....,•,.,:.::,-. .. .;: e:'a. t.,.t,;l,•;v;t•1.• . : r :.t.. .,. ; .: r : n•.:,. ;.,... r r!I t- ' ai t t t . t(•, . •!• a. , ' . ! . St {. ... 1 'r't ',t o :a -t .•r :•,r•' 71 1• t •1 t . . t .1 •t•. t ••r.•.:i .•1 •f ` •f. i i Po:• .•s . t r •i� • r•• .t•:•• t t•1 1 •1 .h'• t . ... .. + OY• .•1 1 •1 ' •'i . 11 I • 4: :.-.., ,. '.r' 1 , . . t, i ., :f. . r;:. •� f � • , ,t ' + .ir: i.; � ...hdf::: .,Nt•tJi:m':J ql {'. t PERMEABILITY OF GEOLOGIC MATERIALS REPRESENTATIVE VALUES OF POROSITY Geological Material Permeability (K) in cm/sec Material Porosity % Gravel 10-1 to 101 Gravel, coarse 28 Clean Sand 104- to 10"2 Gravel, medium 32 Silty Sand 10-58 to 10.1 Gravel, fine 34 Glacial Till 10- o to 10-7 Sand, coarse 39 Unweathered Marine Clay 10:i to 10-e Sand, medium 39 Shale 102 to 10-g Sand , fine 43 Igneous Rocks (unfractured) 104 to 104 Sandstone, fine grained 33 Sandstone 10-r to 104 Sandstone, medium grained 37 Limestone or Dolomite 104 to 10"� Filter pack sand (20/40) 30 Karst Limestone 10-- to 1 Collar sand (490) ,rte!ii•y:�i'.?it t:i it4p,{. �;..:-r:rg;,:';, _•:: t ::y t i;a: ,t' Ri•i;:vntt:•'f::h+• '. .tt•:.,r..;:w,tt' 'sttta- :.t Wit:,- ,• , .; .: ,.t.r•..•• �.,;,. . : r. . , .•. . ;. . . , 20 i .. L.' . 77 D.t. 1 i t t. .i : . ,..3. 1( .{ -.t t t .. e! t t , ,... i I . 1 .,,r .fi:.-...>:. . 1 .t1 t t t .t '''1rt :hs.,,• . ,. . :• i. t . '., .:-J . t �•{ :'•. 1 I' . .+ + r t-: I ,� .. t• 1. , .�: . . t . . ..: l : . ..i i.. , . . . t .I Irt . t . . 1't:pit / ?:'1•.i t:nt•:p„t.'•rr'. t : .. . w,. .. .t. . .. ' rl . . t i . , r. . . . . 1 1• : . i . t . . u J 1 •. . I t Ill , t :•: , . t f . . . . < . , t . � • . n t a'�t---.. at• t t. . ,.,...'. 1 ' � . t t•i . . } . . .. -. � _ . . • . . . ... .'•... . . J . . . . � . . . . i t1 . a . tti . . : . r . tr •t" : - .n :.t.• t '•t. . � i . f 1 . . . � r . . i . . . . . . . . . ,. 1, ... . i.r .• .. .... .. ...: • . . . ,. i' . . � ...t ' . ).., ' .. . .. . . 1 . . ... . . . - . t. 4 .. t 7 .. . . I � - . . Y of t. ^ :'C t !. . : t;.•:-4 t • :h t. ...a. •':t s• . K•t• . . t h:t :.t.n: : •.t •... -. t.. . . .,. . .' �. . ,. . ..,....•. ! ..�.. ... ... � •...t r.F .� i . . ,r 1 ,..•.vJl :..,i'. .... .. • ,,.• . t. . .t.. . .,. ,r,.! ( j-. i.r .. c i., . . .,'. , t. '. .t J.t.: ..,.,1.. ,. I . ...,o�...-•t..:'.tt,., .. i. ...,, . r .! It t . ... ' . . .{. i .,t.. .l t . . . . i . t 1} ;.Ikt: r:#,�iftiti.{7•..s..l .,. . t! i.ta.:.:•;1tt;,l i Nfi# t(i.t ar.•-+�: J•i .(.-;,f : t.1.t i.t.;.; .t.t lltt '1 ••��tIq{t;l t!•I:;•i cif F.{. - itI lj�ttt •i�•}: tF V. i .. .•. ... .. .. . t � r. .. .. . t.. . . J . . t ...7�`,.t;.il,,,i,i� ,� ....... ,. t,t �.:.rtll; !,t •7::-.:.�.Illt..:•.f:�llt:.;,?.�.� : rii i�i11:=NJ�iIE:�tlFiii}CJ•:i'li'f�:i�l1;t}F2,�lliFi.}il�l�•:iel�l}i�ii�l�41!�„I{i VOLUME OF OPEN BOREHOLE AND ANNULUS BETWEEN CASING AND HOLE Hole Diameter (inches) Volume cu. ft./lineal ft. Nominal Casing Diameter Volume cu. ft./lineal ft. of annulus (inches) 7.25 0.29 1 .25 0.27 7.25 0.29 2.0 0.26 7.75 0.33 2.0 0.30 8.25 0.37 2.0 0.34 10.25 0.57 2 .0 0.54 8.25 0.37 3.0 0.30 10.25 0.57 3.0 0.51 12.25 0.82 3 .0 0.75 8.25 0.37 4.0 0.26 10.25 0.57 4.0 0.46 12.25 0.82 4.0 0.71 12.25 0.82 6.0 0.58 `' R7!II 9R • !:� ! "riaa .ilRY{:hr0. 'cJ f:r�' sa;r : •+�:� +•' s• : t ' •,t•t•• : •t ,tt •.•.• , .:•:• t. .• :F r } tr. . < i Z�t s . Y" }' YJ•7•"" '"G ! •� , r ' :• ••: a,• t. t •t••.!t. ,•.•.. t : } t . J ! t ' t 4 I ! t J J"r•.•.• ! s : : •d : n . r .a: r•t t.•• , .t i • •1 , < ::�,f .gtm' ► r 1 ,.•: tt�it. t•! t it•. •t!.< . . t ! t : ! t t ! ! ! ! ! i•! t r.t..-{I :%i:��QQ.'I.S . �. .�:i t, � , .t:t. 3 . ' ,t :t ' 7 .Z n :h .It.. .Z .t. .' ! ' St? . . . . . .� t . J t � .• .:. � .Z . !.t•. .{ t 3' � . I K . :•. . Zh + 1 +l J �I� t t . .! t .,t :•r t !:! !1 . ...•�• 1�.. .'i .. ,-.•, . . . . . . . . . gg,L� J J . .1•. I I E S i} .�''. . ..1 S. ::� J r}�t t r ! ••) f° !: :!- t r ..1• t>Z ,Q .•. �s ' t •, •t III ' •.its. r Jt!.,11l�JZ�. . ! . . ...•:JI{.J!-., It.....ij'�s ..�. ..��: ..11id:..l�ti^•�. .fl 1 }� . �.11�: ! It ₹ �� . gg. . •I•�1.. � {!tr, '� . �� : '�� 7 �:7 ggtt Jpt {J. 1... �g F�! i�.J?ti i J'' 7 nti�%:ititi:• i 77 t 7 }itZ ^t �1F� rte} it�� r 12. �,:iJtl t 1 .!� I J� i'S : .:il: ;Itn. .-. ..t t.t.r..{,.e. (? f J'r t t:�itLl�ll�',!i..ti'i: tJ �:'•��:i�t{:Ai.tit)ifs:i�t'.It.3si:�l.t:':NJ�S�.�,,,;irilt {;liit,�;l��'�i1 Jbl�.�(�:;iids :�:ia :J:l, :��;��F3�+��llttl:�ii?;�'w st��IIiJN1:!!i!}NisSilfL'ii�td�a VOLUME OF MISCELLANEOUS DATA SCHEDULE 40 PVC PIPE Dia. Vol. gal/linear lineal 1 cu. ft. = 7.5 gal. (approx. ) 1 barrel = 55 gal . (approx.) 1 .25" 0.08 1 gal. = 0. 134 cu . ft. (approx. ) PSI = 0.434 x the height of the water column in ft. 2.0" 0. 17 1 cu. yd. = 202 gal. (approx. ) 1 sack of cement = 1 cu . ft and approx. 96 lbs. 3.0" 0.38 1 gal. = 0.005 cu . yd. (approx.) 1 pail of Bentonite Pellets = 50 lbs. (approx.) 4.0" 0.66 1 gal. of water = 8.34 lbs. (approx.) 1 sack of sand = 1 cu . ft. and approx. 100 lbs. 6.0" 1 .5 1 Cu. ft. of Freshwater = 62.4 8.0" 2.6 Feet of Head = PSI x 2.304 Projemer\00forms-boringlog\Guide-boringlog\ BLGUIDE213/28/20081 JMF NUP T - in U) >-+ C `'-' > (/) - o - a° >, 0 C U CO C L U D C O l! U) o •>•, • C .in O ill U I'D ), _— "- (6 U -1-z., N c _ Q) U in C 01) Q — CC) C > , O 2. l) C CU — (i) O C .> 3) ( "= ill us c C a v, 0 J N O N O A U O O >, •— X a ) — U as U U +_. _ x E a) x = 2 o• o its U in E D NJ c E v) a ui �, o a. CI) 4 c x C i° O -2 - E , co - f U a° cn a3 as to • L C cn m m U t° 16 IL > N i C N j C ' E ( v' ocn O E m x ' _ Q — is D vi a E m 0) cn CO ° °' E c° L' 'in 4' U) c a ti- s _D O (en (v > aT vi a= U >, CII Q) U Cl) O) 13 > Q) L U s L Q) CU > o t C Z3 >, O O UEP. co co 1) CO C CO 0 -p E U) p a?) -a m Cu al U c 52 U1 O i__ LL -n cn us- � >, •w i° cn 0 >, w a) 2 -) . 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