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Home My WebLink About20131436.tiffPAWNEE STATIONARY COMMERCIAL WATER RECYCLING FACILTY OPERATIONS PLAN HALLIBURTON ENERGY SERVICES, INC. HOUSTON, TX 77074 The following materials contain proprietary and confidential business information. TABLE OF CONTENTS 1. Introduction Page 1 2. Facility Site Description Page 2 3. Facility Design and Process Description Page 2 4. Ground Water Contamination Prevention Page 5 5. Recycling Process Page 8 6. Record Keeping and Reporting Page 10 7. Closure Information Page 10 EXHIBITS i. BACKGROUND INFORMATION a. Exhibit 1 —Topographical and Flood Plain Information ii. SITE DESIGN EXHIBITS a. Exhibit 2A — Site Location Map b. Exhibit 2B — Site Plan Layout/Plot Plan c. Exhibit 2C — 3D Site Plan Layout iii. Exhibit 3 — Groundwater Monitoring Well Map iv. Exhibit 4 — Sampling and Analysis Plan v. GROUNDWATER CONTAMINATION PREVENTION a. Exhibit 5A — Secondary Containment Storage Volume Calculations Memorandum b. Exhibit 5B — Secondary Containment and Witness Zone Plan c. Exhibit 5C — Secondary Containment and Witness Zone Cross Sections & Details d. Exhibit 5D — Loading/Unloading/Truck Tank Wash Pad plan, sections, and details e. Exhibit SE — Truck Tank Wash Detail 1 f. Exhibit 5F — Truck Tank Wash Detail 2 g. Exhibit 5G — Truck Tank Wash Detail 3 h. Exhibit 5H — Loading Station Detail Exhibit 5I — Unloading Station Detail j. Exhibit 5J — Piping Details k. Exhibit 5K — Pipe Support Details vi. Exhibit 6 — SPCC Plan (Submitted Separately) vii. Exhibit 7 — CleanWave' Water Treatment Service Brochure PAWNEE STATIONARY COMMERCIAL WATER RECYCLING FACILITY OPERATIONS PLAN 1. Introduction The Pawnee Stationary Commercial Water Recycling Facility (the "Pawnee Recycling Facility" or the "Facility") is the Second Phase of Halliburton's two-phase water supply and management project located at 57748 CR95 in Weld County. Phase One is operational and provides freshwater for oil and gas development operations. The second phase, the subject of this application, will enable recycling of oil and gas development waste water. The Facility is designed to provide Total Water Management Services, in that the Facility will receive hydraulic fracturing flow back water and formation produced water from area oil and gas development, treat that water, and recycle and reuse the treated water in oil and gas operations. Utilizing its proprietary CleanWaveTM technology, Halliburton Energy Services, Inc. ("Halliburton" or "HESI") will remove suspended colloidal matter from the flow back and produced water resulting in treated water suitable for use in future oil and gas drilling and production operations. The CleanWaveTM electrocoagulation process is expected to achieve at least a 75% recycling rate. In addition to the equipment associated with this recycling process, the Facility will house a series of holding tanks for hydraulic fracturing flow back and produced water storage. The Pawnee Recycling Facility will be co -located at a larger facility that will include water supply and oil and gas waste water disposal operations and will employ spill prevention procedures, including secondary containment, storage tank automated shutoff valves, and a comprehensive SPCC Plan that will limit impacts to surface and subsurface waters. Periodic ground water monitoring and water quality chemical analyses will enable prompt detection of potential impacts to ground water. The Facility will be enclosed with chain linked fencing topped with barbed wire in order to keep cattle and other wildlife out of the premises, and for security purposes, the Facility will be manned 24 hours per day, 7 days per week. Access to the Facility will be limited to a single, manned entry point, and a Supervisory Control and Data Acquisition ("SCADA") system will be employed to effectively manage vehicle traffic and to prevent illegal dumping and receipt of unauthorized material. Security lighting will be in place for continuous operations. The Pawnee Recycling Facility will benefit the state and county in a number of ways. First, with the ability to recycle flow back and production water, the Facility will significantly reduce the need for fresh water and will reduce the total amount of water disposed of in regional oil and gas drilling and production operations. Moreover, the Facility will reduce truck traffic on local roads, in that it provides a convenient one -stop location to drop off, recycle and load treated water for local oil and gas operations, thereby reducing the total number of trucks on the roads. Finally, the Facility will also provide the opportunity for surface transfer water lines to be utilized in order to support local operations instead of trucks, further reducing truck traffic. 1 Halliburton Energy Services, Inc. Confidential 2. Facility Site Description The Pawnee Recycling Facility is located on an 80 acre parcel in the Upper Crow Creek Designated Basin in Weld County, southeast of Grover, Colorado, and southeast of the intersection of County Roads 95 and 118. The site is flat, open grassland currently used as agricultural pasture for livestock and wildlife management. The underlying aquifers are the Upper Laramie and the Fox Hills. Groundwater occurs in sandstone and clay stone and in semi - confined to confined conditions at depths of approximately 35 to 38 feet below surface and deeper. Groundwater classification in the area would be designated as Agricultural Use as defined by CDPHE WQCC 5 CCR 1002-41 Regulation No 41. The local groundwater flow direction in the vicinity of the Facility is to the southwest. This conclusion is based on two independent factors: the regional topography underlying the site has a southwesterly slope of approximately 0.5%, and groundwater elevations measured in a limited number of boreholes from the geotechnical investigation in the vicinity of the fresh water storage area confirm that the local groundwater flow direction is generally to the southwest. Soil and subsoil site -specific geology consists of seven to twenty feet of unconsolidated silt and clay overlying at least 47 feet of sandstone and clay stone of the Laramie Formation. The soil is classified as hydraulic soil group B. Topographical and Flood Plain Information is included in the attached U.S.G.S. topographic quadrangle map on which is indicated the outline of the Pawnee Recycling Facility, associated underlying pipelines, and the location of the 100- year flood plain. The U.S.G.S. topographic map is included as Exhibit 1. 3. Facility Design and Process Description a. Facility Design Description The proposed Pawnee Recycling Facility is comprised of four off-loading stations, a series of ten holding tanks for the storage of flow back and produced water, five holding tanks for the storage of the treated, recycled water, two loading stations for the distribution of the recycled water, one loading station and two holding tanks for the collection of the reclaimed hydrocarbons separated during the recycling process, and two truck tank wash stations used to clean tankers after off-loading flow back and/or production water. See Exhibits 2A, 2B and 2C, Site Design Exhibits. The operation will recycle flow back and produced water associated with exploration and production activities for reuse in oil and gas development, thereby reducing impacts to the state's fresh water resources as a result of oil and gas development. Residual hydrocarbons from the flow back and formation water will be recovered and properly disposed of, as explained in further detail in Section 4. The main flow back water recycling operations will be situated within a concrete secondary containment pad and will contain ten 27'- 6" diameter x 24' high (2,500 BBL) Incoming Brine ("IB") vertical storage tanks, five 38'-6" diameter x 24' high (5,000 BBL) Outgoing Brine ("OB") vertical storage tanks, two 19' diameter x 24' high (500 BBL) Oil Storage tanks, and two 12' 2 Halliburton Energy Services, Inc. Confidential diameter Chemical Storage tanks. The estimated maximum volume of untreated oil and gas waste water to be stored at the Facility is 1,000 BBL; maximum volume of partially treated oil and gas waste water to be stored is 4,000 barrels of system capacity. The CleanWaver" recycling system as well as four oil water separators ("OWS") and a Total Suspended Solids ("TSS") sludge removal pit are located in the IB and OB storage tank area. Adjacent to the tank storage pad is an oil tank loading bay; located to the south of the tank storage facility are two loading bays from Outgoing Brine tanks and one Truck Wash Station. The entire processing facility contains secondary containment designed with a watertight HDPE liner under concrete walking surface with water stops at the joints that provides for a dual layer of protection from spills, as explained in Section 4. Four ground water monitoring wells are located strategically around the Facility to accurately measure and assess the subsurface water quality. A Sampling and Analysis Plan has been developed to address the groundwater monitoring requirements in Colorado, specifically the requirements in COGCC Rule 908(b)(9), and to establish a baseline groundwater quality assessment, against which future groundwater analytical data can be compared. See Exhibit 3, Ground Water Monitoring Well Map, and Exhibit 4, Sampling and Analysis Plan. b. Step -wise Description of Facility Recycling Process: The following is a step-by-step description of the layout of the Facility. Entrance: Upon entering the Facility, each driver will be required to enter a keypad code to identify the specific operator and origin of the delivery. As explained in further detail in Section 3c. below, trucks will not be able to unload without an approved code. Additionally, each load is received and signed in by a dedicated Facility operator. The operator will electronically enter into a database program the time and date of receipt, operator, volume, load description, truck details if applicable, API number, lease or facility name, lease number, gas identification number, and county. Offloading at the Incoming Brine Station: The recycling process is initiated when a truck driver offloads the flow back or production water into one of the Facility's Incoming Brine stations. As mentioned above, the Facility's Incoming Brine offloading station is controlled and regulated by a SCADA monitoring system. This system controls the operation of each loading/unloading station and can only be activated by the truck driver swiping his client and driver -specific radio frequency identification (RFID) card. Once the station is active, the driver can begin offloading his waste water load through a 4" flex pipe with cam -lock connections, the volume of which will be monitored by the SCADA system. Once the tanker has been emptied, the driver disconnects the 4" flex hose and can either proceed to the truck tank wash station to clean the truck's tank in preparation for loading with outgoing brine, fresh water, or the trucker may return to his respective oil and gas production site to obtain another load of incoming brine for recycling. If during this process any water is spilled, each offloading station is situated within a concrete pad containing a perimeter curb. The unloading pad area is equipped with a concrete trench drain that collects any spills, small drips, leaks, and storm water. This fluid will then gravity flow to 3 Halliburton Energy Services, Inc. Confidential the central secondary containment area which will be sloped such that any liquids will sheet flow to two concrete sump collection systems. Each sump will then be pumped to one dedicated 2,500 BBL incoming brine tank. This material will then be held until the tank is batched through the recycling system. Truck Tank Wash: The Pawnee Facility is equipped with a truck tank cleaning station that allows the inside of tankers to be cleaned after delivering a load of production waste water and before loading and transporting Outgoing Brine or freshwater. Once again, the truck tank wash station is monitored and controlled by the Facility's SCADA system. As is the case with the loading/unloading stations, the truck tank wash station can only be activated by the truck driver swiping his client and driver -specific RFID card. Once the station is active, the truck driver again attaches a 4" flex hose to the truck via cam -locks and activates the washing device. All water used to clean the inside of the tanker is then drained through the 4" flex hose and collected in a sump where it is transferred through a double walled pipe to the secondary containment area and deposited in a 2,500 BBL tank until it can be recycled. If any water is spilled during this process, the truck tank wash station is equipped with a concrete trench drain that collects any lost water and directs it to the truck tank wash sump where it is transferred through a double walled pipe to the secondary containment area and deposited in a 2,500 BBL tank until it can be recycled. In other words, all water used to wash tankers will be collected and added to the recycling process, in accordance with the schematic in Exhibit 5D, once again creating recycled usable water for oil and gas drilling and production operations. Loading at the Outgoing Brine Station: The Outgoing Brine loading station is controlled and regulated by the SCADA monitoring system. Just as is the case with the offloading station, the loading station must be activated by the truck driver swiping his client and driver -specific RFID card. Once the station is active, the driver can begin loading his truck with recycled brine water through a 4" flex pipe with cam -lock connections. Once again, this process is monitored by the SCADA system, but it is the truck driver's responsibility to monitor the amount of water being loaded into the truck in order to prevent overloading. If any water is spilled during the loading process, a concrete pad with perimeter curb will capture the water and direct it to a concrete trench drain. Any lost water including rainfall runoff will gravity flow within the trench drain to the central secondary containment area. Once in the secondary containment area, the water will sheet flow to two concrete sump collection systems. Each sump will then be pumped to one dedicated 2,500 BBL incoming brine tank, where it is held until the tank is batched through the recycling system. c. Facility Security and Safety Measures: The Pawnee Recycling Facility is enclosed within a chain linked fence topped with barbed wire equipped with gates at the entrance and will be manned by an operator 24 hours a day, 7 days a week to prevent unauthorized access to the Facility. In addition, the Facility will be secured through its onsite SCADA monitoring system. As previously mentioned, the Facility's stations are unable to be operated without the use of a Pawnee Recycling Facility supplied RFID card. In addition, the Facility will have a remote SCADA system monitoring entrance and exit traffic and 4 Halliburton Energy Services, Inc. Confidential will have security lighting and video surveillance. The site will also be equipped with video monitoring equipment that will permit authorized users to view activities on the site remotely. In the unusual event that the Facility is unmanned, special procedures will be implemented for depositing pre -approved waste that will be controlled by the key card system. The system will log all of the appropriate well data for each load of waste. Records will be maintained for the source and volume of waste accepted for recycling in accordance with Colorado requirements. A site orientation and safety sign -off will be required before a new driver is permitted to enter the recycling side of the Facility. Such orientation will include, but not necessarily be limited to, required personal protective equipment, location of first aid kit/fire extinguisher/emergency call list, the location of emergency shut off switches, acknowledgement of a No Smoking zone within 100 feet of the containment area, truck tank rinsing procedures, and general unloading procedures. 4. Groundwater Contamination Prevention a. Secondary Containment Measures To reduce the chance of ground water contamination, the process and storage areas at the Pawnee Recycling Facility will be located within a containment structure equipped with two forms of secondary containment. First, a concrete slab creating a barrier between the entire recycling operation and the ground beneath it will be laid. The concrete slab will extend to the limits of the recycling operation area and will also include containment slabs/troughs at each of the unloading / loading stations to prevent any contamination during the unloading / loading processes. In addition to the concrete slab containment, the Pawnee Recycling Facility will also be equipped with a HDPE liner located six inches beneath the concrete slab. This area is equipped with the following in order to prevent leakage into the groundwater: - All joints within the secondary containment area are equipped with water stops to prevent any leakage through the joints. - Each concrete lined secondary containment area is secondarily lined with a HDPE liner that collects any leakage and deposits it in a witness zone sump where it can be collected or directed to the sump basin for collection. See Exhibit 5B, 5C, and 5D, Secondary Containment. Potential Release Points — In designing the facilities secondary containment measures, the following potential release points were taken into consideration: Release Point Solution Leaking Pipes/Tanks Concrete Liner Secondary Containment S Halliburton Energy Services, Inc. Confidential Concrete joints Waterstops Concrete cracks HDPE Secondary Liner Spilled water at loading/unloading stations Concrete Trench Drains / Sumps Overfilling of trucks at loading station Concrete Trench Drains / Sumps / HDPE Liner Failed waterstops/seals HDPE Secondary Liner The Facility will be graded such that storm water runoff within the containment and unloading/loading areas will be directed to sump pump basins. The pumps will be utilized to remove all storm water from the sump and direct it to either an incoming brine tank or to the future salt water disposal well. Rainfall from any storm event will first be pumped to a dedicated incoming brine tank so that it may either be processed through the CleanWave'M system or directed to the salt water disposal well. In the event the IB tank is full or becomes full, rainfall will then be diverted and disposed of down the saltwater disposal well. All rainfall within the Facility will be reused in the recycling process through the CleanWaveTM system or discharged of down the salt water disposal well. Storm water outside of the containment area will be directed to the swale that is located around the boundary of the Facility. This storm water will be managed as per the drainage plan for the site. The Facility will also include a monitoring well system, consisting of one upgradient well and three downgradient wells, located strategically around the Facility to provide data regarding incoming and outgoing groundwater. HESI will conduct initial baseline groundwater sampling pre -construction to determine the current site groundwater quality. Once the Facility is operational, sampling of the four wells will continue, but the analyte list may be reduced pending the results of testing during the first year and pursuant to guidance and input from the state and county. See Exhibit 3 Groundwater Monitoring Well Map. A detailed description of Halliburton's groundwater monitoring plan for the Facility is set forth in the attached Sampling and Analysis Plan. See Exhibit 4. In addition, the secondary containment volume requirement has been calculated based on the volume from one of the largest tanks as well as storm water accumulation from the 25-yr, 24 -hr storm event. Those calculations are attached in Exhibit 5A. Finally, a Spill Prevention Control and Countermeasure ("SPCC") Plan has been developed that includes training of personnel, high level alarms, periodic inspections, equipment maintenance program, and emergency response procedures. See Exhibit 6, SPCC Plan (submitted separately). b. Waste Water Monitoring Oil and gas waste water treatment operations will be monitored by the System Control and Data Acquisition ("SCADA") system that is already operational on Pawnee Phase I. The system is designed to track a variety of inputs that ensure safe operation of the equipment and facilitate 6 Halliburton Energy Services, Inc. Confidential the compilation of data for accurate reporting to State and local agencies. The SCADA system also provides a basis for accurate billing. System parameters are stored locally and pushed through cellular telemetry to a secure website every 30 minutes, where they can be monitored remotely by authorized personnel. Planned system configuration includes setting alarm levels for tanks and sumps to prevent overflow, setting pump motor sensors (over/under voltage, over/underload, open circuit) to prevent pump dry run, ensuring system recirculation during cold weather (freezing) periods, and installing float switches in the containment area and truck wash sumps to automatically pump collected water back into the influent tanks for treatment. Waste stream management will include: Water treatment to minimize waste; Residual oily waste treatment; Solid wastes and de -watering process; Testing for solid waste disposal; and regular operations to remove office sanitary waste and other solid waste. • The current system design tracks fluid levels in all tanks, including: Raw influent — produced and flow back water from area oil and gas operations (IB tanks), Treated effluent — cleaned water for reuse in drilling and completion operations (OB tanks), Recovered oil/condensate from water treatments (Oil Tanks). • The current system also monitors flow as follows: Tracks totalized flow of incoming produced and flow back water from the field, by customer, Tracks totalized flow of outgoing treated brine water. Incoming drivers with oil and gas waste water are required to check in with the site operator prior to unloading water. A sample of the water will be screened for key indicator parameters (specific gravity, H2S, and solids content). Waste water from operator client companies will be segregated into designated tanks prior to treatment. c. Residual Waste Management Measures By their nature, oil field waste water contains components whose removal is desirable if the fluids are to be reused in drilling and completion activities. This waste can include oil and/or condensate, formation solids, drilling fluids, fracturing fluid residuals, proppant, and dissolved solids from connate water. The treatment process to be employed at this Facility is expected to remove many, but not all, of these constituents. The process will concentrate the waste in 500 - bbl settling tanks which will require periodic removal. The sludge in these tanks will be dewatered using conventional methods (centrifuge, filter press, etc.). The dewatering process will take place within the secondary containment area. The liquid fraction will be returned to the IB tanks for treatment, and the dried residual will be collected, tested and hauled to a licensed solid waste facility for disposal. The weight of the dewatered/dried waste, which will be weighed at the landfill, will be tracked and recorded monthly at the Facility, where it will be 7 I Halliburton Energy Services, Inc. Confidential divided by the monthly volume of water treated (converted to tons) to give a weight percentage of the waste generated by the treatment process. The frequency of sludge removal will depend on the amount and nature of the influents. Previous work suggests that sludge removal operations are necessary every 80-100,000bbls. At the anticipated level of oil field waters, this could be monthly. Dried solids are expected to be 1- 2% of the total volume treated. This waste will be collected in a dedicated container and hauled off site when full. Dried material is not expected to present nuisance odors that will drift off the site. Testing conducted to date suggests that dried solids contain mostly clays, dehydrated frac gel (guar or a derivative), some metals (iron, alkali earths, trace heavy metals), and residual oil. Dried samples will be submitted to an EPA -approved laboratory annually, for a full analysis including heavy metals and NORMs. Downstream of the grit chambers, oils that are recovered in the oil/water separators during the treatment process will be stored in two 500 -bbl oil tanks. The two tanks shall float together so that oil is equally distributed or discharged from the two tanks. One oil load out station will be controlled and regulated by the SCADA monitoring system. The SCADA system will easily allow for the amount of oil recovered to be tracked and reported monthly. Just as is the case with the outgoing brine loading stations, the oil loading station must be activated by the truck driver swiping his client and driver -specific mag card. Once the station is active, the driver can begin loading his truck with oil through a flex pipe with cam -lock connections. 5. Recycling Process The Pawnee Recycling Facility will provide Total Water Management Services. Current plans call for trucking oilfield produced and flow back water from the field within a 25 -mile radius of the Facility, treating it and offering it for sale to be used for reformulated drilling, hydraulic fracturing and completion fluids. Once offloaded, the waste water passes through a grit chamber to remove any large debris and to allow any frac sand to settle out. The water then moves through an oil -water plate separator which removes a large majority of the hydrocarbons from the flow back/production water. The hydrocarbons collected by the oil -water plate separator are stored in two 500 barrel onsite storage tanks until offloaded from the site. Once the waste water passes through the oil -water separator, it is then stored in client specific 2,500 barrel incoming brine (IB) storage tanks until a suitable amount of flow back/production water is collected. Once the required amount of water is collected, the water is processed utilizing HESI's CleanWaveTM technology. The CleanWaveTM system passes the flow back/production water through electrocoagulation cells, where the anodic process releases positively charged ions. These ions bind onto the negatively charged colloidal particles resulting in coagulation. At the same time, gas bubbles, produced at the cathode, attach to the coagulated matter causing it to float to the surface where it is removed by a surface skimmer. Heavier coagulants sink to the 8 Halliburton Energy Services, Inc. Confidential bottom, leaving clear water, suitable for use in drilling and production operations. The coagulated matter removed from the water is, as mentioned above, skimmed off and processed through a sludge press. Finally, the byproduct of this sludge press process is disposed of via a certified offsite landfill, in accordance with the Residual Waste Management process described in Section 4. The recycled water collected from the CleanWaveTM process is then transferred to the onsite OB storage tanks, which in turn supply the outgoing recycled water loading stations, thereby closing the water recycling loop. The level of treatment using Halliburton's CleanWaveTM (electrocoagulation) technology is such that suspended solids, heavy metals, some alkali earth metals, and residual hydrocarbons are removed. To keep treatment costs low, dissolved salts are not extracted, so the resulting product is reusable brine, rather than fresh water. Unlike some treatment methods that can result in an up to 30% high salinity rejection fraction, the CleanWaveTM process generally produces <5% sludge from the process. The electrocoagulation process has been in use for nearly 100 years, but only in the last decade has it been applied to oilfield waste streams. See Exhibit 7, CleanWaveTM Water Treatment Service Brochure. Since 2010, projects in Louisiana, Texas, Wyoming, Utah, North Dakota and Colorado have demonstrated the effectiveness of this technology with repeated results of returning over 95% of the influent into oilfield -reusable fluid. Because flow back waters encountered sometimes contain surfactants and emulsifiers that are more difficult to remove, not all water is suitable for electrocoagulation treatment. In these cases, the influent is either treated with a chemical precipitation process or sent to disposal in a Class II injection well. Halliburton expects to be able to reuse at least 75% of the produced and flow back water delivered to the Facility, thereby drastically reducing the need to use fresh water. As noted above, analytical testing will be performed on each wastewater stream to demonstrate that the Facility's proposed processing and treatment will result in a recyclable product that meets the engineering and environmental standards for the proposed oilfield reuse. Specifically, the Pawnee Recycling Facility will recycle flow back and produced water for two proposed uses: hydraulic fracturing fluid and completion fluid. a. Proposed Use: Hydraulic Fracturing Fluid To prepare hydraulic fracturing fluid, treated water will be blended with prescribed formulation additives which can vary depending on the nature of the proposed fluid (slick water, linear gel, cross -linked gel, foam, etc.) and pilot tested according to industry (API) specifications. Blended water is then tested using a Fann 50 viscometer for initial hydration, cross -linked viscosity, and pump time. This process can also simulate down hole temperature conditions. Fluid formulations (additive concentrations) are adjusted to obtain desired rheology, and then retested. Analytical results are run through a scaling tendency model to assess the likelihood of scaling in the production liner and near -well bore formation. Turbidity of the treated water is checked as an indication of the amount of suspended solids remaining in the effluent. Permit -based analytical parameters will also be sampled. 9 Halliburton Energy Services, Inc. Confidential b. Proposed Use: Completion Fluid HESI and its clients also intend to use the treated, recycled water from the Pawnee Recycling Facility for completion fluid. To determine suitability, the treated water will first be tested for turbidity, density and scaling tendency. Turbidity of the treated water is checked as an indication of the amount of suspended solids remaining in the effluent. The fluid density is measured with a mud scale or refractometer. Analytical results are run through a scaling tendency model to assess the likelihood of scaling in the production liner and near -well bore formation. Permit -based analytical parameters will also be sampled. 6. Record Keeping and Reporting HESI intends to comply with the Colorado requirement that all industrial recycling operations complete the Recycling Facility Annual Reporting Form and submit to the Department of Public Health and Environment by March 1 of each year for the previous calendar year. The annual report will include all recycling data and information required by the Department, including: • Types of materials recovered for recycling based on the Department's material classification; • Amount, in tons, of each material recovered for recycling; • Destination per material and amount per destination to prevent double counting; • Amount of material remaining on site. The Pawnee Recycling Facility will keep and maintain records on -site for at least the previous three years. Under corporate and client requirements and policies, the Facility will maintain data regarding weight, volume, and destination of materials as confidential business information. 7. Closure Information The following closure plan has been developed pursuant to the requirements of Section 8.3.4 of the Colorado Department of Public Health's Recycling and Beneficial Use regulations. Removal of process fluids/wastes and facility structures at the time of site closure are detailed below and reflect HESI's intended disposition in accordance with applicable CDPHE rules. a. Waste Removal and Disposal At the time of Facility closure, HESI will remove the following wastes, partially treated wastes, and recyclable products, as required by Section 8.3.4, and described below: 10 Halliburton Energy Services, Inc. Confidential 1. Any remaining produced water in the ten 2,500 -barrel capacity Incoming Brine storage tanks will be removed and recycled and/or disposed of in accordance with state regulations. 2. Any water remaining in any of the five 5,000 -barrel capacity Outgoing Brine storage tanks will be sold. If it cannot be sold, it will be recycled and/or disposed of in accordance with state regulations. 3. Any chemicals remaining in the two 6,500 gallon chemical storage tanks associated with the CleanWaveTM system will be sold. If it cannot be sold, it will be recycled and/or disposed of in accordance with state regulations. 4. Any water and sediment/sludge remaining in the four 500 -barrel weir tanks, eight 500 -barrel settling tanks, four 215 -barrel oil/water separators, or one DAF 500 - barrel tank associated with the CleanWaveTM system will be removed and transported to an authorized injection well and/or landfill for disposal. 5. Any water and sediment/sludge remaining in the 250 -barrel outgoing brine tank or 250 -barrel backwash water tank associated with the CleanWaveTM system will be removed and transported to an authorized injection well and/or landfill for disposal. 6. Any remaining sludge in the 500 -barrel sludge storage tank or 20 -cubic yard capacity sludge storage tank dumpster will be transported to an authorized landfill for disposal. 7. Any sediment/sludge remaining in the four 80 cubic foot Trash/Grit Chambers will be removed and transported to an authorized landfill for disposal. 8. Any water and sediment/sludge remaining in the four 215 -barrel oil/water separators will be removed and transported to an authorized injection well and/or landfill for disposal. 9. Any oil, water or other liquids remaining in the two 500 -barrel oil storage tanks (OSTs) will be removed and transported to an authorized injection well and/or landfill for disposal. b. Facility Demolition At the time of Facility closure, HESI will close the following storage areas or cells, as described below: 1. The ten 2,500 -barrel capacity Incoming Brine Storage Tanks, five 5,000 -barrel capacity Outgoing Brine storage tanks, eight 500 -barrel capacity settling tanks, four 500 -barrel weir tanks, one 500 -barrel sludge storage tank, one DAF 500 -barrel tank, four 215 -barrel oil/water separator tanks, and two 250 -barrel capacity outgoing brine/backwash water tanks will be dismantled and used in other Halliburton 11 Halliburton Energy Services, Inc. Confidential operations. If not needed in other operations, the metal will be sold for use in other tanks or as scrap metal, depending on the condition of the metal. 2. The two 6,500 -barrel capacity tanks holding pre-treatment chemicals will be decontaminated and used in other Halliburton operations or sold. 3. The CleanWaveTM system and sludge press will be moved off -site and used in other Halliburton operations or sold. 4. The sludge press building and sludge conveyor will be dismantled and used in other Halliburton operations, sold or salvaged as scrap metal. 5. Electric generators and housings will be moved off -site and used in other Halliburton operations or sold. Miscellaneous electrical equipment and wiring will be dismantled and moved off -site for potential use in other Halliburton operations. If not needed in other operations, electrical equipment and wiring will be sold or properly disposed. 6. After all liquids are removed; pumps will be decontaminated, dismantled and used in other Halliburton operations or sold. 7. All other miscellaneous piping and equipment (including the dumpster) will be moved off -site for potential use in other Halliburton operations. If not needed in other operations, miscellaneous equipment will be sold or properly disposed. c. Site Restoration As part of final site closure activities, HESI will perform the following activities: 1. Secondary containment structures surrounding the Facility will be decontaminated, as required, and recycled and/or disposed of in accordance with legal requirements. 2. Samples of soil and groundwater will be collected throughout the Facility and sent to a qualified lab for analysis and reporting, as described below: • Three shallow soil samples will be collected from up to four soil borings using a mobile sampling device, for a total of up to 12 soil samples collected from the Facility. One soil boring will be installed on each side of the former Facility processing area and analyzed for benzene, toluene, ethylbenzene and total xylenes (BTEX), total petroleum hydrocarbons (TPH), RCRA metals, pH, and electrical conductivity (EC). All samples will be analyzed by an off -site laboratory utilizing applicable CDPHE-approved sampling methods. • One groundwater sample will be collected from each of the four existing site monitoring wells in accordance with the Groundwater Monitoring Plan. As part of site closure activities, each sample will be analyzed by an off -site laboratory 12 Halliburton Energy Services, Inc. Confidential for BTEX, TPH, RCRA metals, pH and EC utilizing applicable CDPHE-approved sampling methods. 3. When sampling data indicates that soil and groundwater at the Facility does not contain contaminants above applicable CDPHE closure criteria, all four groundwater monitoring wells will be plugged and abandoned. 4. 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CO Q w < F- CC SITE OVERVIEW c‘i cri tri O O N 0 0 0 14 X X X X 0_r I ‘i.0 PI • 11,40247ANTRIPNrettWOVepaa Tr Le -Ciii 'tip, 4t'iS.i'-ai•1 'r ino' %azt$.tarer Vii. #V . i -�► i-;�inotta0S a •4X4i ;1�:• e3. a •a'+X� a!1 ii airgis •,. i e t i i i• i�iai3•i es, ; �=-.l`X -z• :. • z• .: •z -.:•:�-X•-ati-�!.-z:`' a•.�; •a, i_•..n?-:I•.�•.••.••.••.•••.••.••..••t ••.••.•-.•..••.• ra ,.•4 _ ,. �. ;..•��•�.A�1.-�i~•� -a� .rah-Hh-,,iNci •�h•.+... �6Stie- •ae:-i�~r.:h-,.,:; 7114 i ce: ic., 0.•�•� r��' / it I. its.ti — eve • i i i I Ii•i�i�i�i�•i��I I i I ••1;.•Z. 1 1I .' �,, -a6%64\ —40.1•••••• I — •X:t—:�- h —z • X X X N NN \ \ \ \ \ \ \\ \ \\ \\ N \ \ \ \\ \\ N if X 4- V U W cc oa Z No ao Op OO i IT I I I I I 4 r ij 1 08-17-12 a N U UCC Q U_ OO cnz UJ w Q� W Jp Z W D 0 cr O 8 m 9 CO O 0 LL 0 Iffi WZ Zw w U J z C CO co w Exhibit 4 DRAFT SAMPLING AND ANALYSIS PLAN PAWNEE WATER LOADOUT FACILITY County Road 95 Weld County, Colorado Prepared For: HALLI B U RTO N Prepared By: ENGINEERING Patrick Engineering Inc. 1400 West 122nd Avenue, Suite 102 Westminster, Colorado 80234 Date Prepared: August 17, 2012 Date Revised: November 21, 2012 Patrick Engineering Inc. November 2012 Exhibit 4 Pawnee Water Loadout Facility Sampling & Analysis Plan (SAP) TABLE OF CONTENTS PAGE 1.0 INTRODUCTION 1.1 Project Overview 1.2 Purpose 2.0 BACKGROUND INFORMATION 2.1 Site Location and Description 2.2 Geologic Setting 3.0 PROPOSED WELL LOCATIONS AND ANALYTE LIST 3.1 Groundwater Flow Direction 3.2 Monitoring Well Locations 3.3 Nearby Existing Water Wells 3.4 Analyte List 4.0 FIELD ASSESSMENT & SAMPLING METHODOLOGY 4.1 Identified Areas of Concern 4.2 Drilling Method 4.3 Monitoring Well Installation 4.4 Sampling 5.0 SAMPLE DOCUMENTATION AND SHIPMENT 5.1 Field Notes 5.2 Labeling 5.3 Chain -of -Custody Forms and Custody Seals 5.4 Packaging 6.0 INVESTIGATION -DERIVED WASTE 6.1 IDW Management 6.2 Characterization 1 1 1 1 2 3 3 3 3 4 5 5 5 6 7 8 8 9 9 9 10 10 10 7.0 REPORTING 11 8.0 REFERENCES 12 LIST OF FIGURES Fig. 1 - Site Location Map Fig. 2 — Monitoring Well Location Map Fig. 3 — Existing Water Well Map LIST OF TABLES Table A — Proposed Analyte List — On Site Wells Table B — Proposed Analyte List — Off Site Wells Patrick Engineering Inc. November 2012 Exhibit 4 Pawnee Water Loadout Facility Sampling & Analysis Plan (SAP) 1.0 INTRODUCTION 1.1 Project Overview This Sampling and Analysis Plan (SAP) has been developed to support the construction of Phase II of the Pawnee Water Loadout Facility located southeast of Grover, Colorado, southeast of the intersection of County Roads 95 and 118. The facility is situated in the West 1/2 of the NW 1/4 of Section 13, Township 10. Range 61 West of the 6th Principal Meridian, County of Weld, State of Colorado. The facility sits on an 80 acre parcel, with Phase I and Phase II encompassing approximately 10 acres. The parcel is currently used as agricultural pasture for livestock and wildlife management. A Site Location Map has been attached as Figure 1. The southern portion of the planned Loadout Facility (Phase II) will be used to temporarily store oil and gas exploration and production waste (primarily produced water) as defined and regulated by the Colorado Oil and Gas Conservation Commission (COGCC), under authority as delegated by the Colorado Department of Public Health and Environment (CDPHE), and described in COGCC Rule 908(b)(9). Phase I, located on the northern portion of the facility. stores and loads out clean water. This SAP has been developed to address the groundwater monitoring requirements contained within COGCC Rule 908(b)(9), and contains the specific procedures that will be used to install monitoring wells, perform groundwater sampling, and use these results in the permitting process with Weld County, and other appropriate state regulatory agencies. 1.2 Purpose This SAP has been developed to address the groundwater monitoring requirements contained within COGCC Rule 908(b)(9), and to provide the facility operator a sufficient monitoring well network for the continued long- term monitoring of groundwater in the vicinity of the Loadout Facility. Specifically, this SAP has been developed to achieve the following goals: 1. To determine the location and number of proposed monitoring wells at the proposed facility consistent with COGCC Rule 908(b)(9), and sufficient to provide a baseline groundwater assessment, against which future groundwater analytical data can be compared: 2. To determine the location and number of proposed monitoring wells at the proposed facility consistent with COGCC Rule 908(b)(9), and sufficient for use as long-term groundwater monitoring wells; and 3. To develop a groundwater analyte list consistent with COGCC Rule 908(b)(9). and appropriate for the long-term monitoring of potential leaks and/or spills of the production wastes likely to be handled by the Loadout Facility. 2.0 BACKGROUND INFORMATION 2.1 Site Location and Description The Site is located southeast of Grover, Colorado southeast of the intersection of County Roads 95 and 118. The Site is situated in the West 1/2 of the NW '/4 of Section 13, Township 10N, Range 61W of the 6th Principal Meridian, Weld County. Colorado. The Loadout facility encompasses approximately 10 acres that is currently -1- Exhibit 4 Pawnee Water Loadout Facility Sampling & Analysis Plan (SAP) used as agricultural pasture for livestock and wildlife management. The property is flat open grassland gradually sloping at 0.5% southwesterly towards gravel surfaced County Road 95. 2.2 Geologic Setting The Site is located within the Denver Basin Province, a geologic structural basin located on the eastern flank of the Rocky Mountains. The regional and local geology of the Site consists of several thousand feet of sedimentary rock ranging in age from Cretaceous to Pennsylvanian lying atop basement rock. 2.2.1 Physiography The Denver Basin Province is an asymmetrical Laramide-age structural basin located in eastern Colorado, southeastern Wyoming, the southwestern corner of South Dakota, and the Nebraska Panhandle. Two basin deeps (local elevation lows) located along the axis of the basin, close to the Front Range, separate the steeply dipping western flank and gently dipping eastern flank. The basin is bounded on the west by the Front Range of the Rocky Mountains, on the northwest by the Hartville Uplift, on the northeast by the Chadron Arch. and on the southwest and southeast by the Apishapa Uplift and Las Animas Arch, respectively. Soil information was derived from the National Resource Conservation Service, Web Soil Survey of Weld County, Colorado. The underlying soils consist of the Kim -Mitchell complex having a moderate infiltration rate. The area is well drained and the soils consist of fine textured to moderately coarse elements. The soil is classified as hydraulic soil group B. The site and surrounding area lies within the Jackson Draw drainage basin which consists of over 30 square miles of contributing runoff above the headwaters. flowing in a southwesterly direction. Approximately 1.5 square miles of contributing area lies upstream of the subject property. The 10± acre development considered in this Plan is a minor contributor to any flows developed within the overall basin. There are no other known drainage ways or irrigation ditches in the vicinity. 2.2.2 Local Geology (Generalized) The geology of the Site consists of ten to fifteen feet of unconsolidated silts and clays lying atop the White River Formation. The White River Formation extends to a depth of approximately 150 feet to the top of the Laramie formation. Underlying the Laramie Formation is the Fox Hills Sandstone which overlies the Pierre Shale. Underlying the Pierre Shale is the Niobrara Formation, the Colorado Group, and the Dakota Group. Underlying the Dakota Group are several other formations of Jurassic through Pennsylvanian age that lie atop the basement rocks. 2.2.3 Local Geology (Specific) Based upon 12 preliminary geotechnical borings made in August 2012, the geology at the Site consists of 7 to 20 feet of unconsolidated silt and clay overlying at least 47 feet of sandstone and claystone. The deepest boring was installed to a depth of 60 feet below ground surface. Overall, the site -specific geology was found to be consistent with the local geology described in the previous -2- Exhibit 4 Pawnee Water Loadout Facility Sampling & Analysis Plan (SAP) section. Depth to groundwater in several of these borings was approximately 35 to 38 feet below ground surface at to 1 day after drilling was completed. The results of the geotechnical investigation will be provided in a separate report. 3.0 PROPOSED WELL LOCATIONS AND ANALYTE LIST 3.1 Groundwater Flow Direction The anticipated local groundwater flow direction in the vicinity of the Loadout Facility is to the southwest, as shown on Figure 2. This conclusion is based upon two independent factors: 1. The regional topography underlying the site has a southwesterly slope of approximately 0.5%; and 2. Groundwater elevations measured in a limited number of open boreholes from the geotechnical investigation in the vicinity of the produced water storage area confirm that the local groundwater flow direction is generally to the southwest. Upon implementing the Final SAP, groundwater flow Halliburton will be confirmed and documented, and well locations will be modified if the groundwater flow is found to differ from the initial findings. 3.2 Monitoring Well Locations COGCC Rule 908(b)(9)(B)(ii) states that "ground water gradient and quality of water shall be established by the installation of a minimum of three (3) monitor wells. including an up -gradient well and two (2) down -gradient wells that will serve as points of compliance-. While there is some flexibility on the part of COGCC in determining whether this specific provision is applicable at any given location, this SAP has assumed that such a provision is a conservative and necessary feature of a protective long-term monitoring approach. Accordingly, the locations of the proposed monitoring wells are shown on Figure 2. Monitoring well MW -01 has been located so as to be upgradient of the produced water storage area and outside the truck route. Monitoring wells MW -02 through MW -04 have all been located downgradient of the storage area. Because of the degree of uncertainty related to groundwater flow direction, and to allow for possible seasonal fluctuations in groundwater gradients, a total of three downgradient wells are being proposed. MW -03 has been located in a location likely to receive surface water runoff from the storage area, and is directly to the southwest of the storage area. MW -02 and MW -04 are located on either side of MW -03 to allow for variability in groundwater flow direction, and are located so as to reasonably intercept a groundwater plume originating anywhere within the storage area. The downgradient wells will be located approximately 30 feet off the facility's perimeter fence. 3.3 Nearby Existing Water Wells COGCC Rule 908(b)(9)(A) requires that water wells "within a one (1) mile radius of the proposed facility and shall be analyzed to establish baseline water quality." A preliminary well search has identified four existing water wells that appear to be within a one -mile radius of the Loadout Facility: Exhibit 4 Pawnee Water Loadout Facility Sampling & Analysis Plan (SAP) 1. White River Formation Irrigation Well 2. Shallow Livestock Well 3. Upper Laramie 1 4. Laramie Fox Hills 1 The locations of the above wells are shown in Figure 3. The first 2 wells are under private ownership and may or may not be available for sampling and testing. The latter wells are located on the 80 acre parcel owned by Halliburton. None of the wells are believed to be screened within the zone that will be monitored for the Loadout facility. Even so, wells will be added to the initial baseline groundwater assessment, with the potential wells numbers 1 and 2 may not be sampled or tested. 3.4 Analyte List 3.4.1 On -Site Wells COGCC Rule 908(b)(9)(B)(i) specifies that site -specific monitoring wells (such as MW -01 through MW -04) be sampled and analyzed to show compliance with "concentration levels in COGCC Table 910-1 and WQCC [Water Quality Control Commission] standards and classifications by establishing points of compliance." Table 910-1 contains a very limited list of analytes (benzene, toluene, ethylbenzene, xylenes, total dissolved solids, chlorides, and sulfates). The WQCC standards are based upon the groundwater classification applicable to the site in question. as defined by CDPHE WQCC 5 CCR 1002-41 Regulation No. 41 (Standards for Ground Water). The most conservative groundwater classification described by Regulation No. 41 is Domestic Use. Although groundwater in the vicinity of the site is not currently used for potable use, such a future use is conceivable, and this SAP has therefore assumed Domestic Use as the applicable classification. Accordingly, Tables 1 and 2 of Regulation No. 41 list the relevant analytes for groundwater, which include a more extensive list of metals, nutrients, and other analytes applicable to potable groundwater. Table A of this SAP contains the proposed analyte list for the initial on -site baseline groundwater assessment of the Loadout Facility, and includes both analyte lists referenced above and SVOC's, VOC's, and Priority Pollutants at the request of Halliburton. In addition. COGCC Rule 908(b)(9)(A) requires that the existing water wells (within a one -mile radius) be analyzed for a list of analytes including, at a minimum, "all major cations and anions, total dissolved solids, iron and manganese. nutrients (nitrates. nitrites. selenium). benzene, toluene, ethylbenzene. xylenes. pH. and specific conductance." Two such water supply wells are currently located on -site: Upper Laramie 1, and Laramie Fox Hills 1. While the analyte list in Rule 908(b)(9)(A) overlaps the two lists referenced in the previous paragraph. it also adds a number of cations and field parameters (such as specific conductance). Table A of this SAP includes these additional cations and field parameters in the recommended analyte list for the initial on -site baseline groundwater assessment of the Loadout Facility, which would include the four on -site monitoring wells, and the two existing water supply wells. 4 Exhibit 4 Pawnee Water Loadout Facility Sampling & Analysis Plan (SAP) The ultimate purpose of the four on -site monitoring wells is to detect any future leaks or spills that may impact local groundwater in the vicinity of the production water storage area. Because the production water may contain any number of potential contaminants at some future time, three additional sets of analytes have also been included to the on -site analyte list (Table A) to monitor for a much wider range of chemical compounds: volatile organic compounds (VOCs), semi -volatile compounds (SVOCs). and priority pollutants. as defined by 40 CFR Part 423, Appendix A. The analyte list included in Table A will be used for all on -site wells. including the four on -site monitoring wells, and the two existing water supply wells. 3.4.2 Off -Site Wells There are two existing water wells located within a one -mile radius of the site, which must be sampled and analyzed according to COGCC Rule 908(b)(9)(A), provided well -access is authorized by the well owner: The White River Formation Irrigation Well, and the Shallow Livestock Well. Because these off -site wells are only being sampled for local baseline assessment data, and not for ongoing monitoring purposes, a modified analyte list is being proposed for these wells (Table B). Specifically, Table B contains the same analyte list as Table A, with the exception of VOCs, SVOCs, and priority pollutants. 4.0 FIELD ASSESSMENT & SAMPLING METHODOLOGY 4.1 Identified Areas of Concern The identified area of concern at the Facility consists of the production water storage and treatment area. Preliminary field investigations identified that the anticipated direction of groundwater flow is from the northeast to the southwest: therefore, an upgradient well will be installed northeast of the containment area and three downgradient wells will be installed to the west, southwest. and south of the containment area (as illustrated in Figure 2). 4.2 Drilling Method Prior to the initiation of drilling activities, the appropriate notice of intent will be submitted and the appropriate permits to install the monitoring wells will be procured from the Colorado Department of Water Resources (State Engineer). A site visit will be conducted to evaluate physical conditions, equipment and logistical requirements. and to evaluate potential hazards. Also prior to drilling, the appropriate party will coordinate with the proper utility locating service (the Utility Notification Center of Colorado) to identify and locate all underground utilities near the monitoring well locations. All monitoring wells will be located at least 30 feet from the property boundary. The borehole shall be drilled and constructed so as to 1) allow for the proper construction of the monitoring well, 2) properly monitor the parameters of interest and 3) meet the objectives of the groundwater monitoring program. The borehole must allow for the proper placement of the well screen so as to allow for monitoring of parameters based upon chemical and physical characteristics. The well screens will be placed so as to intersect the uppermost groundwater encountered, which is estimated to be approximately 35 to 60 feet below ground surface. 5 Exhibit 4 Pawnee Water Loadout Facility Sampling & Analysis Plan (SAP) The borings will be advanced using hollow -stem augers with at least a 5.0 -inch inside diameter to allow the installation of a 2 -inch diameter well screen and casing. Soil samples will be collected at 5 -foot intervals. Upon encountering consolidated rock, the borehole will be advanced using water rotary drilling using the hollow stem augers as temporary casing. Samples of the rock will be collected continuously by coring. The core barrel size shall be of at least "N" size to allow for the installation of the specified well screen and casing. Collected samples will be described in a dedicated logbook in the field using the Unified Soil Classification System in accordance with American Society for Testing and Materials (ASTM), Standard D-2488. Standard Practice for Description and Identification of Soils (Visual -Manual Procedure). (March 2000). Rock cores will be logged by a qualified geologist. A qualified environmental scientist or geologist will oversee the drilling and will be responsible for generating boring logs and as -built diagrams, as necessary. All drilling equipment that is utilized in drilling or sampling activities will be decontaminated either between boreholes or between sample collections, as appropriate. Equipment will be decontaminated using a laboratory -grade, phosphate -free detergent (such as Alconox) in clean water using a brush to remove particulates and surface films. The equipment will then be rinsed in clean water and allowed to air dry. Decontamination water will be properly collected and disposed of according to local regulations. 4.3 Monitoring Well Installation The groundwater monitoring well construction will comply with the requirements of the Colorado State Engineer's Office. Upon completion of each boring, a 2 -inch diameter. schedule 40 PVC monitoring well will be installed in the completed borehole. A 20 -foot long, 0.010" slotted PVC screen will be installed so as to intersect the uppermost encountered groundwater. The remainder of the well will be completed using PVC casing. Well screen and casing sections will be connected using threaded joints; no adhesives or solvents will be used to construct the well. The annulus surrounding the well screen will be backfilled with washed quartz sand of appropriate size for the well slots to approximately 2 feet above the top of the well screen. A 2 -foot thick bentonite seal will be emplaced directly on top of the filter pack and the remainder of the borehole annulus, to approximately 1 foot below ground surface, will be filled with bentonite-based grout. The monitoring wells will be completed as "stick-up" wells with approximately 3 feet of casing extending above ground surface. The well casing will be protected by a locking, steel well protector that is set in concrete. The outside of the well protector will be labeled with the well number. At least one day after installation, each monitoring well will be developed by removing at least 10 well volumes of water using either bailers or a suitable pump, or until the well is purged "dry". All non -dedicated equipment will be decontaminated between wells using procedures similar to those outlined in the previous section. Dedicated equipment will either be properly stored for re -use or properly disposed of according to local regulations. Upon completion of the field investigation, a survey will be conducted to locate each monitoring well, both horizontally and vertically. The vertical elevations will be surveyed to an accuracy of ±0.01 foot in relation to Exhibit 4 Pawnee Water Loadout Facility Sampling & Analysis Plan (SAP) mean sea level. The horizontal locations will be supplied in state plane coordinates. using the 1983 North American Datum (NAD83). 4.4 Sampling Each monitoring well will be sampled once for the purpose of this groundwater investigation. The purpose of this investigation is to establish a baseline of the suite of parameters. The onsite baseline sampling will include the entire list of constituents for Table A. Baseline monitoring shall consist of the entire list of constituents in Table A if they are detected during the initial sampling events. If, however, the first sampling event shows non - detect for the organic constituents, the facility may request, with justification and supporting information, that the Division and the County consider reducing the constituents used in ongoing sampling program. The non - detect levels shall have a minimum detection level at or below the state groundwater quality standards. Depending on results of initial baseline sampling, this SAP may be revised, with approval from the Division and County to specify which constituents will be tested for on an ongoing basis. Ongoing Baseline testing will be assessed by sampling and analyzing each on -site well every three months for two years. 4.4.1 Sampling Procedures Prior to sampling, the groundwater elevation in each well will be measured using a hand-held water level meter. The meter will be decontaminated between uses. After the groundwater level has been determined, the well will be purged of at least 3 well volumes (or until the well is purged dry) of groundwater to ensure that a sample representative of the formation water is collected. The sample will be collected after the water level has returned to at least 90% recovery. Prior to sampling the existing four water wells within the 1 -mile radius of the Site, the sampling port or spigot or discharge point will be opened/the pump turned on and water allowed to run for at least 15 minutes prior to sample collection. The sampling port, etc. will be cleaned prior to opening to prevent contamination of the sample. Disposable or dedicated bailers will be used to collect representative samples of the groundwater in each well. Water from the bailers will be carefully transferred to the appropriate sampling containers. The sample containers will be labeled prior to filling with the sample name, date and time of collection, name of the collector, and preservatives used, if any. Upon filling of the container, it will be placed immediately on ice and kept in a cooler at a maximum temperature of 4° C. Upon completion of sampling, all non -dedicated equipment will be properly decontaminated (as described in previous sections), all dedicated equipment will be properly stored for re -use, and all disposable equipment will be disposed of according to local regulations. 4.4.2 Analytical Procedures Groundwater samples will be analyzed for the constituents listed in Table A. The appropriate analytical methodology for each constituent is also listed in Table A. 7 Exhibit 4 Pawnee Water Loadout Facility Sampling & Analysis Plan (SAP) In addition to investigative samples, QA/QC samples will also be collected for laboratory analysis. These include both duplicate samples and trip blanks. One duplicate sample will be collected, as the total number of samples collected is less than 10, and one trip blank will be included per cooler. Pursuant to the Colorado Code of Regulations Rule 6 CCR 1007-2 Appendix B(B3)(G) and Federal Rule 40 C.F.R. 258.53, "Following collection of background constituent concentration data the owner or operator must specify in the operating record one or more of the following statistical methods to be used in evaluating ground water monitoring data for each hazardous constituent. The statistical test chosen shall be conducted separately for each hazardous constituent in each well. Any changes in statistical methodology from the specified method(s) shall be reviewed and approved by the Department within two weeks of the request and entered into the operating record. After background data has been collected, a statistical analysis will be specified." The standard evaluation of this kind of data would involve a comparison of an upper confidence limit based upon the background data set. along with a trend analysis, looking at data over time. The actual statistical analysis method to be used in evaluating ground water monitoring data for each hazardous constituent will be described after the background data is collected. 5.0 SAMPLE DOCUMENTATION AND SHIPMENT 5.1 Field Notes At a minimum, the following information will be recorded during the collection of each sample: • Sample location and description • Site or Sampling area sketch showing sample location and measured distances • Sampler's name(s) • Date and Time of each sample collection • Designation of sample as composite or grab • Type of sample (e.g., water) • Type of sampling equipment used to collect each sample • Field instrument readings and calibrations • Field observations and details related to analysis or integrity of samples (e.g., weather conditions, noticeable odors, colors, etc.) • Preliminary sample descriptions (e.g., for soils: clay loam, very wet: for water: clear water with strong ammonia -like odor) • Sample preservations • Lot numbers of sample containers, sample identification numbers and any explanatory codes, and chain -of -custody form numbers 8- Exhibit 4 Pawnee Water Loadout Facility Sampling & Analysis Plan (SAP) • Shipping arrangements (overnight air bill number) • Name(s) of recipient laboratory(ies) In addition to the sampling information listed above, the following specific information will also be recorded in the field logbook for each day of sampling: • Team members and their responsibilities • Time of arrival/entry on site and time of site departure • Other personnel on site • Summary of any site meetings or discussions with contractors, agency personnel. site personnel. etc. • Deviations from sampling plans or site safety plans • Changes in personnel and responsibilities with reasons for the changes • Levels of safety protection 5.2 Labeling All samples collected will be labeled in a clear and precise way for proper identification in the field and for tracking in the laboratory. The samples will have preassigned, identifiable, and unique numbers. At a minimum, the sample labels will contain the following information: • Sampling location • Date of collection • Analytical parameter(s) • Method of preservation, if applicable Every sample, including samples collected from a single location but going to separate laboratories, will be assigned a unique sample number. 5.3 Chain -of -Custody Forms and Custody Seals Chain -of -custody forms are used to document sample collection and shipment to laboratories for analysis. All sample shipments for analyses will be accompanied by a chain -of -custody form. The chain -of -custody form will identify the contents of each shipment and maintain the custodial integrity of the samples. Generally, a sample is considered to be in someone's custody if it is either in someone's physical possession, in someone's view, locked up. or kept in a secured area that is restricted to authorized personnel. Until the samples are shipped or delivered to a certified laboratory. the custody of the samples will be the responsibility of the sample collector. The sampling team leader or designee will sign the chain -of - custody form in the "relinquished by" box and note date. time, and air bill number. 9 Exhibit 4 Pawnee Water Loadout Facility Sampling & Analysis Plan (SAP) The sample numbers for all rinsate samples, reference samples. laboratory QC samples, and duplicates will be documented on the chain -of -custody form. The original form is left with the laboratory analyzing the samples. A self-adhesive custody seal will be placed across the lid of each sample jar. For VOC samples, the seal will be wrapped around the cap. The shipping containers in which the samples are stored (e.g., usually an ice chest), will be sealed with self-adhesive custody seals any time the samples are not in someone's possession or view before shipping. All custody seals will be signed and dated. 5.4 Packaging The following outlines the packaging procedures that will be followed: • • When ice is used, it will be packed in zip -locked, double plastic bags. The bottom of the cooler will be lined with bubble wrap or vermiculite to prevent breakage. • All sample bottles will be affixed with custody labels and placed in heavy duty plastic zip -lock bags. 6.0 INVESTIGATION -DERIVED WASTE Investigative -Derived Waste (IDW) generated during this investigation could include, but is not limited to, soil cuttings produced while installing borings; soils generated for logging field screening and sampling purposes; disposable personal protective equipment (PPE) and sampling utensils; and decontamination fluid from cleaning PPE. sampling equipment, and drilling equipment. Groundwater will be encountered and therefore, is considered as potential IDW material. The facility owner will be responsible for waste management at the site, which includes drumming and securing the IDW, and labeling, staging, and profiling it for ultimate disposal within a timely manner. 6.1 IDW Management As IDW is generated, it will be stored onsite in a designated area and remain in that location until characterized. IDW will be placed in new or reconditioned, Department of Transportation (DOT) -approved 55 - gallon drums. Drums will be in good condition and suitable for transportation. IDW drums will be placed in a configuration that allows room for inspections, operations and maintenance, and handling. Each drum will be labeled with the following information: contents, name of generator, and date. 6.2 Characterization IDW will be disposed of promptly after characterization is performed. The IDW characterization process is outlined in USEPA's Management of Investigation -Derived Wastes During Site Inspections (9345.3-02, May 1991) and Guidance to Management of Investigation -Derived Wastes (9345.3-03FS. April 1992). Classification of IDW will also follow the regulations as published in APC&EC Regulation No. 23, Part 261. Once the IDW is characterized, a determination will be made as to the proper management. - 10- Exhibit 4 Pawnee Water Loadout Facility Sampling & Analysis Plan (SAP) Each container will be referenced to a particular set of analytical (sample) data based on sample identification. Before receipt of data, all IDW will be characterized based on site knowledge, field observations, and field analytical data. All classification/characterization activities will be conducted when analytical data are received. IDW containers will be routinely inspected to ensure that all containers remain in serviceable condition and to ensure good housekeeping practices. Container inspections will be used to identify any problems associated with drum usage, such as bulging, leaking, or improper/missing labels. Any problems will be addressed immediately upon discovery. 7.0 REPORTING A report including all sampling locations, field data, analytical data, and conclusions and recommendations if appropriate, will be submitted to CDPHE and COGCC within 90 days of completing the field work. Data obtained from sampling and analysis procedures will be summarized in tables and supported by raw laboratory reports. Several formats may be used to present sampling results graphically. Forms completed during the investigation will be included in appendices of the report. Accumulated data and analytical results will be interpreted to develop appropriate conclusions and recommendations. Exhibit 4 8.0 REFERENCES American Society for Testing and Materials. ASTM Standard D-2488. Standard Practice for Description and Identification of Soils (Visual -Manual Procedure). Colorado Oil and Gas Conservation Commission (COGCC), Rule 908 Colorado Department of Public Heath and Environment (CDPHE), Water Quality Control Commission, 5 CCR 1002-41 Regulation No. 41 (Standards for Ground Water). 40 CFR Part 423, Appendix A United States Environmental Protection Agency. (1991). Risk Assessment Guidance for Superfund, Part A. Office of Solid Waste. (1993, September). Data Quality Objectives for Superfund, Interim Final Guidance (540/G-93/017). (1991, May). Management of Investigation -Derived Wastes During Site Inspections (9345.3-02). (1991, revised 2008). Risk Assessment Guidance for Superfund Volume 1: Human Health Evaluation Manual (Part B. Development of Risk -Based Preliminary Remediation Goals). Publication 9285.7-01 B. Office of Emergency and Remedial Response. Washington, DC. NTISPB92-963333. (1992, April). Guidance to Management of Investigation -Derived Wastes (9345.3-03FS). (1998, January). Test Methods for Evaluating Solid Waste. Physical/Chemical Methods. Chapter 9. Publication 846, Office of Solid Waste and Emergency Response. (August 2000). Guidance for the Data Quality Objectives (EPA/600/R-96/055,). Exhibit 4 FIGURES to UW U W h I 1 w -± 4e44 - CC 730 N t4±1 ., CC s i cc N a¢ 3w 52 p LL iL W J Q U O co 02 W N _ v 4. W z Z 0 / az� /v a-•)i 0 r 1 CO i � 1 Kill / / r Sae 1 �O • 44O yd\ _ =W _ U zta, CC .4 n Co 0) gi 0 CD a. 0 a. a. 1P ito u- a u. r. oO of - - r 1 3� x c , iv I-. W I Q O Q Vl S IQ ca W •- O Q II ma it / CO 51 U.uJus / J cot / / UP O a I < 0 0 CC so fl14.1 tu -a 5683 N UU — W CE J Z2 ` W K N 0 CC" i - _ 6 Lr—V w ix LL O Ii) O U a en 0 ? N U 1 1 J2 1 1 1683 LOT H3 t _ N 66 83 1 1 N z BOUNDARY a 0 ri 08-17-12 21273.003 Z • 0 n U, U CO Q Q >- F- LU CCU C D 00 V J CC 0 CC O Q CC CC H Q W N � Z W D O 0 INJ W elCC CC le M V ita Z H W co co 0 0 VI 8 N lt O Q LL 0 w r Q aLI H Zw w WzZ Z z Z N CD Exhibit 4 TABLES Exhibit 4 TABLE A PATRICK ENGINEERING PROPOSED ANALYTE LIST - ONSITE WELLS Halliburton Pawnee Water Loadout Facility Grover, Colorado August 2012 PARAMETER NOTES ANALYTICAL METHOD pHb'` Field Parameter Field Parameter Specific Conductance` Field Parameter Field Parameter Groundwater Depth Field Parameter Field Parameter Well Depth Field Parameter Field Parameter Acetone° Laboratory Parameter SW -846 Method 8260B Benzenea `df Laboratory Parameter SW -846 Method 8260B Bromodichloromethaned 1 Laboratory Parameter SW -846 Method 8260B Bromoformd t Laboratory Parameter SW -846 Method 8260B Bromomethane (Methyl bromide° f Laboratory Parameter SW -846 Method 8260B 2-Butanone° Laboratory Parameter SW -846 Method 8260B Carbon disulfide° Laboratory Parameter SW -846 Method 8260B Carbon tetrachloride°' Laboratory Parameter SW -846 Method 8260B Chlorobenzene°t Laboratory Parameter SW -846 Method 82608 Dibromochloromethane°J Laboratory Parameter SW -846 Method 8260B Chloroethaned 1 Laboratory Parameter SW -846 Method 8260B Chloroform° ' Laboratory Parameter SW -846 Method 82608 Chloromethanec ' Laboratory Parameter SW -846 Method 8260B 2-Chloroethyl vinyl ether' Laboratory Parameter SW -846 Method 8260B 1.1-Dichloroethane°f Laboratory Parameter SW -846 Method 8260B 1.2-Dichloroethane°f I aboratory Parameter SW -846 Method 82608 1,1-Dichloroethene°t Laboratory Parameter SW -846 Method 8260B cis-1,2-Dichloroethene° Laboratory Parameter SW -846 Method 8260B trans-l.2-Dichloroethene°J Laboratory Parameter SW -846 Method 82608 1,2-Dichloropropane°f Laboratory Parameter SW -846 Method 8260B 1,3-Dichloropropene. cis+transd1 Laboratory Parameter SW -846 Method 8260B Ethylbenzeneac,°' Laboratory Parameter SW -846 Method 82608 2-Hexanoned Laboratory Parameter SW -846 Method 8260B 4-Methyl-2-pentanoned Laboratory Parameter SW -846 Method 82608 Methylene chloride°f Laboratory Parameter SW -846 Method 8260B Methyl tert-butyl ether° Laboratory Parameter SW -846 Method 8260B Styrene' Laboratory Parameter SW -846 Method 8260B 1.1,2,2-Tetrachloroethane° t Laboratory Parameter SW -846 Method 8260B Tetrachloroethened-f Laboratory Parameter SW -846 Method 8260B Toluenes c° -t Laboratory Parameter SW -846 Method 82608 1,1,1-Trichloroethane° f Laboratory Parameter SW -846 Method 8260B 1,1.2-Trichloroethane°f Laboratory Parameter SW -846 Method 8260B Trichloroethene°f Laboratory Parameter SW -846 Method 8260B Vinyl chloride°f Laboratory Parameter SW -846 Method 8260B m,p, - Xylened Laboratory Parameter SW -846 Method 8260B o-Xylened Laboratory Parameter SW -846 Method 82608 Xylenes, Totalac° Laboratory Parameter SW -846 Method 8260B 1,2,4-Trichlorobenzeneef Laboratory Parameter SW -846 Method 8270C 1,2-Dichlorobenzenee f Laboratory Parameter SW -846 Method 8270C 1,3-Dichlorobenzeneef Laboratory Parameter SW -846 Method 8270C 1,4-Dichlorobenzenee f Laboratory Parameter SW -846 Method 8270C 2.4.5-Trichlorophenole Laboratory Parameter SW -846 Method 8270C 2,4,6-Trichlorophenolef Laboratory Parameter SW -846 Method 8270C 2,4-Dichlorophenolef Laboratory Parameter SW -846 Method 8270C 2,4-Dimethylphenole f Laboratory Parameter SW -846 Method 8270C 2,4-Dinitrophenole.t Laboratory Parameter SW -846 Method 8270C 2,4-Dinitrotoluenee t Laboratory Parameter SW -846 Method 8270C 2.6-Dinitrotoluene` ' Laboratory Parameter SW -846 Method 8270C 2-Chloronaphthalenee f Laboratory Parameter SW -846 Method 8270C 2-Chlorophenolbe' Laboratory Parameter SW -846 Method 8270C Exhibit 4 PARAMETER NOTES ANALYTICAL METHOD 2-Methylnaphthalenee Laboratory Parameter SW -846 Method 8270C 2-Nitroanilinee Laboratory Parameter SW -846 Method 8270C 2-Nitrophenole' Laboratory Parameter SW -846 Method 8270C 3,3-Dichlorobenzidines' Laboratory Parameter SW -846 Method 8270C 3-Nitroanilinee Laboratory Parameter SW -846 Method 8270C 4,4-DDD' Laboratory Parameter SW -846 Method 8081B 4,4-DDE' Laboratory Parameter SW -846 Method 8081B 4,4 -DDT' Laboratory Parameter SW -846 Method 8081B 4,6-Dinitro-2-methylphenole' Laboratory Parameter SW -846 Method 8270C 4-Bromophenyl phenyl ethers' Laboratory Parameter SW -846 Method 8270C 4-Chloro-3-methylphenole Laboratory Parameter SW -846 Method 8270C 4-Chloroanilinee Laboratory Parameter SW -846 Method 8270C 4-Chlorophenyl phenyl ethers' Laboratory Parameter SW -846 Method 8270C 4-Nitroanilinee Laboratory Parameter SW -846 Method 8270C 4-Nitrophenole' Laboratory Parameter SW -846 Method 8270C Acenaphthenee' Laboratory Parameter SW -846 Method 8270C Acenaphthylenee f Laboratory Parameter SW -846 Method 8270C Acrolein' Laboratory Parameter SW -846 Method 8081B Acrylonitnle Laboratory Parameter SW -846 Method 8081B Aldrin' Laboratory Parameter SW -846 Method 8081B alpha-BHC' Laboratory Parameter SW -846 Method 8081B Anthracenee' Laboratory Parameter SW -846 Method 8270C Aroclor 1016' Laboratory Parameter SW -846 Method 8082A Aroclor 1221' Laboratory Parameter SW -846 Method 8082A Aroclor 1232' Laboratory Parameter SW -846 Method 8082A Aroclor 1242' Laboratory Parameter SW -846 Method 8082A Aroclor 1248 Laboratory Parameter SW -846 Method 8082A Aroclor 1254' Laboratory Parameter SW -846 Method 8082A Aroclor 1260' Laboratory Parameter SW -846 Method 8082A Benzidine' Laboratory Parameter SW -846 Method 8270C Benzo(a)anthracenee' Laboratory Parameter SW -846 Method 8270C Benzo(a)pyrenee' Laboratory Parameter SW -846 Method 8270C Benzo(b)fluoranthenee' Laboratory Parameter SW -846 Method 8270C Benzo(g,h,i)perylenee' Laboratory Parameter SW -846 Method 8270C Benzo(k)fluoranthenee' Laboratory Parameter SW -846 Method 8270C beta-BHC' Laboratory Parameter SW -846 Method 8081B Bis(2-chloroethoxy)methanee1 Laboratory Parameter SW -846 Method 8270C Bis(2-chloroethyl)ethere ' Laboratory Parameter SW -846 Method 8270C Bis(2-chloroisopropyl)ethere' LaboratoryParameter SW -846 Method 8270C BIs(2-ethylhexyl)phthalatee' Laboratory Parameter SW -846 Method 8270C Butyl benzyl phthalate' Laboratory Parameter SW -846 Method 8270C Carbazolee Laboratory Parameter SW -846 Method 8270C Chlordane' Laboratory Parameter SW -846 Method 8081B Chrysenee' Laboratory Parameter SW -846 Method 8270C delta-BHC Laboratory Parameter SW -846 Method 8081B Di -n -butyl phthalates' Laboratory Parameter SW -846 Method 8270C Di-n-octyl phthalates-' Laboratory Parameter SW -846 Method 8270C Dibenzo(a,h)anthracenee' Laboratory Parameter SW -846 Method 8270C Dibenzofurane Laboratory Parameter SW -846 Method 8270C Dieldrint Laboratory Parameter SW -846 Method 8081B Diethyl phthalates' Laboratory Parameter SW -846 Method 8270C Dimethyl phthalates' Laboratory Parameter SW -846 Method 8270C 1,2-Diphenylhydrazine Laboratory Parameter SW -846 Method 8270C Endosulfan It Laboratory Parameter SW -846 Method 8081B Endosulfan II' Laboratory Parameter SW -846 Method 8081B Endosulfan sulfate Laboratory Parameter SW -846 Method 8081B Endrin Laboratory Parameter SW -846 Method 8081B Endrin aldehyde' Laboratory Parameter SW -846 Method 8081B Fluoranthenee' Laboratory Parameter SW -846 Method 8270C Fluorenee' Laboratory Parameter SW -846 Method 8270C gamma-BHC Laboratory Parameter SW -846 Method 8081B Heptachlor Laboratory Parameter SW -846 Method 8081 B Exhibit 4 PARAMETER NOTES ANALYTICAL METHOD Heptachlor epoxide` Laboratory Parameter SW -846 Method 8081 B Hexachlorobenzenee f Laboratory Parameter SW -846 Method 8081B Hexachlorobutadienee f Laboratory Parameter SW -846 Method 8270C Hexachlorocyclopentadienee f Laboratory Parameter SW -846 Method 8081B Hexachloroethanee' Laboratory Parameter SW -846 Method 8270C Indeno(1,2,3-cd)pyrenee" Laboratory Parameter SW -846 Method 8270C Isophoronee" Laboratory Parameter SW -846 Method 8081B N-Nitrosodtmethylamine Laboratory Parameter SW -846 Method 8270C N-Nitrosodi-n-propylamineet Laboratory Parameter SW -846 Method 8270C N-Nttrosodiphenylaminee f Laboratory Parameter SW -846 Method 8270C Naphthalenes, Laboratory Parameter SW -846 Method 8270C Nitrobenzenee' Laboratory Parameter SW -846 Method 8270C o -Cresols Laboratory Parameter SW -846 Method 8270C Parachlorometacreso( Laboratory Parameter SW -846 Method 8081B Pentachlorophenole f Laboratory Parameter SW -846 Method 8270C Phenanthrenee f Laboratory Parameter SW -846 Method 8270C Phenols" Laboratory Parameter SW -846 Method 8270C Pyreneef Laboratory Parameter SW -846 Method 8270C 2.3,7,8 -TODD` Laboratory Parameter SW -846 Method 8081B Toxaphene' Laboratory Parameter SW -846 Method 8081B Antimony° f Laboratory Parameter SW -846 Method 6020 Asbestos°' Laboratory Parameter EPA Method 100 1 Arsenic°" Laboratory Parameter SW -846 Method 6020 Bariumb Laboratory Parameter SW -846 Method 6020 Berylliumbt Laboratory Parameter SW -846 Method 6020 Cadmium°" Laboratory Parameter SW -846 Method 6020 Chromium°t Laboratory Parameter SW -846 Method 6020 Copper° -t Laboratory Parameter SW -846 Method 6020 Cyanideb 1 Laboratory Parameter EPA Method 335 4 Fluorideb Laboratory Parameter SW -846 Method 6020 Lead° Laboratory Parameter SW -846 Method 6020 Mercury°" Laboratory Parameter SW -846 Method 6020 Molybdenum` Laboratory Parameter SW -846 Method 6020 Nickel° Laboratory Parameter SW -846 Method 6020 Seleniumbt Laboratory Parameter SW -846 Method 6020 Silver° Laboratory Parameter SW -846 Method 6020 Thallium°t Laboratory Parameter SW -846 Method 6020 Uraniumb Laboratory Parameter ASTM Method D5174-91 Zinc°" LaboratoryParameter SW -846 Method 6020 Sulfate° Laboratory Parameter SW -846 Method 6020 Iron° Laboratory Parameter SW -846 Method 6020 Manganeseb Laboratory Parameter SW -846 Method 6020 Gross Alpha Particle Activity° Laboratory Parameter SW -846 Method 7110C Beta and Photon Emittersb Laboratory Parameter EPA Method 900 0 Color° Laboratory Parameter EPA Method 110 2 Corrosivity° Laboratory Parameter SW -846 Method 1110A Foaming Agentsb Laboratory Parameter SW -846 Method 5540C Odorb Laboratory Parameter SW -846 Method 5150B Total Coliformsb Laboratory Parameter SW -846 Method 9221A Total Dissolved Solids ` Laboratory Parameter SW -846 Method 2540C Nitrate (NO3)6 Laboratory Parameter SW -846 Method 4500 NO3 Nitrite (NO2 -)N° Laboratory Parameter SW -846 Method 4500 NO2 Nitrite & Nitrate (N0,+NO3-N)° Laboratory Parameter SW -846 Method 4500 NO2 and NO3 Major Anions (CI, SO4, HCO3, 003)3 ` Laboratory Parameter SW -846 Method 9056A Major Cations (Ca, Mg, Na, K)a ` Laboratory Parameter SW -846 Method 6010B NOTES. 'Pnrneter listed m COGCC Table 910-1 `Parameter listed cn WOCC 5 CCR 100241 Regulation No 41 T abses 1 and 2 'Parameter listed in COGCC Rule 908(bX9HA) *volatile Organic Compared by SW -846 Method 8260B 'Seim-Vdat a Organic Canpound by SW -846 Method 8270C 'Priority Pollutant per 40 CFR Part 423. Appendix A Exhibit 4 TABLE B PATRICK ENGINEERING PROPOSED ANALYTE LIST - OFFSITE WELLS Halliburton Pawnee Water Loadout Facility Grover, Colorado August 2012 PARAMETER PARAMETER TYPE ANALYTICAL METHOD pHb.` Field Parameter Field Parameter Specific Conductance` Field Parameter Field Parameter Groundwater Depth Field Parameter Field Parameter Well Depth Field Parameter Field Parameter Benzene3" Laboratory Parameter SW -846 Method 8260B Ethylbenzene3` Laboratory Parameter SW -846 Method 8260B Toluene` Laboratory Parameter SW -846 Method 82608 Xylenes, Total° ` Laboratory Parameter SW -846 Method 8260B 2-Chlorophenolb Laboratory Parameter SW -846 Method 8270C Antimony° Laboratory Parameter SW -846 Method 6020 Asbestosb Laboratory Parameter EPA Method 100.1 Arsenicb Laboratory Parameter SW -846 Method 6020 Bariumb Laboratory Parameter SW -846 Method 6020 Berylliumb Laboratory Parameter SW -846 Method 6020 Cadmiumb Laboratory Parameter SW -846 Method 6020 Chromiumb Laboratory Parameter SW -846 Method 6020 Copperb Laboratory Parameter SW -846 Method 6020 Cyanideb Laboratory Parameter EPA Method 335.4 Fluorideb Laboratory Parameter SW -846 Method 6020 Lead Laboratory Parameter SW -846 Method 6020 Mercuryb Laboratory Parameter SW -846 Method 6020 Molybdenumb Laboratory Parameter SW -846 Method 6020 Nickel° Laboratory Parameter SW -846 Method 6020 Seleniumb Laboratory Parameter SW -846 Method 6020 Silverb Laboratory Parameter SW -846 Method 6020 Thallium° Laboratory Parameter SW -846 Method 6020 Uranium° Laboratory Parameter ASTM Method D5174-91 Zinc° Laboratory Parameter SW -846 Method 6020 Sulfate° Laboratory Parameter SW -846 Method 6020 Iron° Laboratory Parameter SW -846 Method 6020 Manganese° Laboratory Parameter SW -846 Method 6020 Gross Alpha Particle Activity° Laboratory Parameter SW -846 Method 7110C Beta and Photon Emitters° Laboratory Parameter EPA Method 900.0 Colorb Laboratory Parameter EPA Method 110.2 Corrosivityb Laboratory Parameter SW -846 Method 1110A Foaming Agentsb Laboratory Parameter SW -846 Method 5540C Odor° Laboratory Parameter SW -846 Method 5150B Total Coliforms° Laboratory Parameter SW -846 Method 9221A Total Dissolved Solidsa ` Laboratory Parameter SW -846 Method 2540C Nitrate (NO3)b Laboratory Parameter SW -846 Method 4500 NO3 Nitrite (NO2-)Nb Laboratory Parameter SW -846 Method 4500 NO2 Nitrite & Nitrate (NO2+NO3-N)° Laboratory Parameter SW -846 Method 4500 NO2 and NO3 Major Anions (CI. SO4, HCO3, CO3)3' Laboratory Parameter SW -846 Method 9056A Major Cations (Ca, Mg, Na. K)3` Laboratory Parameter SW -846 Method 6010B NOTES 'Parameter listed m COGCC Table 910-1 °Parameter listed m WOCC 5 CCR 100241 Regulabon No 41 Tables 1 and 2 `Parameter listed in COGCC Rule 9081bf(9)(A) Exhibit 5A CALCULATIONS MEMORANDUM PATRICK ENGINEERING PROJECT NO: 21173.001 TITLE: Phase II Secondary Containment PROJECT: Pawnee Phase II Recycling Facility CREATED BY: MLF REVIEWED BY: SHEET 1 OF 2 DATE: 11/12/12 DATE: Objective: Proposal: Determine the storage volume required to ensure sufficient containment of one of the largest tanks plus enough free board to contain a 25 year, 24 hour storm event. Provide a design method of controlling rainfall from the 25 -year 24 -hour storm event within the Pawnee Phase II secondary containment island, loading/unloading areas, and truck tank wash area. The design will utilize one (1) dedicated incoming brine tank as well as the ability to utilize a future salt water disposal well. The entire Phase II Recycling facility will incorporate 5 -inch thick concrete with waterstops over an HDPE liner (Refer to the Secondary Containment and Witness Zone Plan and Details). The unloading/loading and truck tank wash areas will consist of concrete pavement underlain by HDPE lined witness zone. The containment barrier around the concrete lined area will utilize concrete retaining walls. The recycling facility will be graded such that stormwater runoff within the containment area will be directed to inlets/pumps within the containment area. The loading/unloading area and truck tank wash pads will have secondary containment and witness zones as well. A geocomposite drainage layer, trench drain, perforated pipe, and sump are to function as the witness zone. The witness zone sumps will have a watertight lid and valve which will normally be closed on outlet. The witness zone sumps gravity drains to the secondary containment sumps and pumps. The pumps will be utilized to remove all stormwater from the secondary containment area. Rainfall from any storm event will first be pumped to a dedicated incoming brine tank so that it may either be processed through the clean wave system or directed to the future salt water disposal well. In the event the dedicated IB tank is full or becomes full, rainfall may then be diverted to the salt water disposal well. All rainfall within the recycling facility will be processed through the clean wave system or discharged of down the future salt water disposal well. Given: The secondary containment volume requirement has been calculated based on the volume from one of the largest tanks as well as stormwater accumulation from the 25-yr, 24 -hr storm event. All conversions from BBL to gallons use 42 BBL/gallon Storm rainfall (for freeboard calculation): Per NOAA Atlas 2 Volume 3 • 25-yr, 24 -hr storm = 3.0" (0.25 ft) Sturm rater Storage Volume: Area of containment/recycling area = 75,640 sf Area of concrete loading/unloading truck tank wash pads = 8,680 sf Total area collecting stormwater = 84,320 sf 1400 West 122" Avenue, Suite 102, Westminster, Colorado 80234 1800.799.7050 I patrickengineering.com TWOC ENGINEERING Water surface elevation within secondary containment cannot exceed 5049.0ft (lowest elevation of electrical pump stations) Calculations: Containment volumes derived from Civil3D. Volumes exclude displacement of internal structures, including pump stations, tanks, etc. Available volume of secondary containment area: • Providing 1ft of freeboard (water surface elevation at 5049.55) = 2,745 cy • With water surface elevation below electrical systems (5049.0) = 1,860 cy Rainfall Volume (Vna;n): VRam = 84,320 sf x (3 in / 12 in/ft) = 21,080 cf x l cy/27 cf = 781 cy. Largest Tank Spill Volume: Vtank = 5,000 bbl x 42 bbl/gal x 1 gal/7.48 cf x 1 cy/27cy = 1,040 cy Total Storage Volume Needed: Vtotai= Stormwater + Largest Spill Volume = 781 cy + 1,040 cy 1,821 cy Conclusions: Stormwater (with no pumps running), from a tank spill and 25-yr, 24 -hr storm, will not inundate electrical systems, and will provide more than 1 ft of freeboard. Page 12 P:\Denver\ACTIVE\21173.001_Pajarito Ranch\5.0 Engineering\5.4 Reports _Studies\Storm Water Management .IIOKN3II • Gra-11:134 .04••0•10 In, III B.Ir,oO _. WOWS 0444.M wMtllp.rr-a Sat S 11. •0..1.—.4 ana:ilala. n,h .. P- -r• MA. 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TANK FOR RECYCLING WASH WATER DRAINS a • • •a . a •••. • ` :.'•: • • • .•• •4 . • 4 • .. a •.., •a• •; • •. •• • • • • • • -••• :• ' .- - .• a • a • • .• 4. a • e • • • • VALVE VAULT ,DUPLEX IN -GROUND LIFT: STATION ••• 6''OR'x•12'•QEEP e. • •4,. • •., / ...s•• • • : -.• . • • S. • • • . • • • • i • •s 6" CURB -1 TRENCH DRAIN TRENCH DRAIN CONCRETE PAD WITH CURB FOR LOADING OUTGOING BRINE CONCRETE PAD WITH CURB FOR TRUCK WASH NOTE: 1. ALL UNDERGROUND PIPING TO AND FROM THE TRUCK TANK WASH STATIONS SHALL BE DOUBLE -WALL PIPE. ISSUED FOR RECYCLING DESIGNATION AND WELD COUNTY LAND USE APPROVAL TRUCK TANK WASH PLAN VIEW IIIRNIIINEEPINCI INC. 1400 Waal 171nd Ave. Salo 102 II 1. (:100) 577 8620 WaaLnirmtor, Co 80229 FAX (303) 532 8621 http:lA ww.patnckengweenng.can PROFESSIONAL DESIGN FIRM UCENSE NO. 184-000409 PAWNEE RECYCLING FACILITY OPERATIONS PLAN TRUCK TANK WASH DETAIL (1) REVISION 1 3/14/2013 PROJECT NO.: 21273 003 DATE: 11/12/12 SCALE: NTS PAGE: EX -5E C 2" FLANGE, PVC TO FLEX 250W HPS TYPE "F4" (6" Sq) x 20'-0"H STEEL POLE ELECTRICAL J -BOX, 4" Sq x 3"D ELECTRICAL WEATHERHEAD 2" FLEX, NON - KINK SUPPLY HOSE 3/4" FLEX WIRE, FROM WEATHERHEAD TO CHAIN HOIST MOTOR _air-- 6 -BUTTON STATION REMOTE MOUNTED - ACE WORLD CO's rm C1 WASH WATER LIFT STATION 6' DIA x 12' DEEP TRUCK WASH CONTROLLER ----are NOTE: 1 ALL UNDERGROUND PIPING TO AND FROM THE TRUCK TANK WASH STATIONS SHALL BE DOUBLE -WALL PIPE, ISSUED FOR RECYCLING DESIGNATION AND WELD COUNTY LAND USE APPROVAL 12'-0"L, 1 TON, WALL BRACKET, JIB CRANE - GORBEL MODEL #WB100-G1-12-6 CHAIN HOIST. 1 TON - ACE WORLD CO's TANKER CLEANING SYSTEM - GAMAJET MODEL 88 TANKER TRUCK (REPRESENTATIVE ONLY) TRUCK TANK WASH DETAILS SUPPORT BEAM REVISION 1 3/14/2013 PATRICK ENOINENRINCIII i 400 Watt 172nd Ave. Sit 102 TH.. (303) 537.8670 Wi Wnrwtor. CO 80229 FAX (303) 532 8621 http:/ ww.patrickengneenng.coin PROJECT NO.. 21273.003 PAWNEE RECYCLING FACILITY I DATE OPERATIONS PLAN 11/12/12 SCALE NTS PAGE P0OFESSIONAL DESIGN FIRM LICENSE NO. 184-000409 TRUCK TANK WASH DETAIL (2) EX -5F SEE ACCESSORIES SECTION FOR PORTABLE HOIST (OPTIONAL) VENT PIPE rci<- DISCHARGE PIPE ACCESS COVER r CABLE HOLDER PUMP CONTROL PANEL c CONCRETE BY OTHERS Fri . . . BACK FILL r.. • 'a -, , •• •. TOP DISCHARGE CONNECTION TOP FIBERGLASS BASIN COMPACTED SUB BASE AGGREGATE BASE / CRUSHED STONE INTEGRAL ANTI - FLOTATION FLANGE CONCRETE BALLAST RING, 24"Wx51” THICK .• , to •. • • . .. :. • •• • :1:1. .• .4 • .7'. 3. / v \/ \/\/-\/ // '/\/ '/\ / /,//,//,//,/././/. /.. /. /\/\ /\ if - LIQUID LEVEL SENSORS (4x) PUMP INLET PIPE ALL UNDERGROUND PIPING SHALL BE DOUBLE -WALL PIPE ISSUED FOR RECYCLING DESIGNATION AND WELD COUNTY LAND USE APPROVAL CABLE ENTRIES LOCATED PER --__- CUSTOMERS' REQUEST NOTE 1. ALL UNDERGROUND PIPING TO AND FROM THE TRUCK TANK WASH STATIONS SHALL BE DOUBLE -WALL PIPE TRUCK TANK WASH LIFT STATION DETAIL PATRICK ENOINENRINCIP i 400 Watt 172nd Avu. Sit 102 TH.. (303) 537.8670 Wuttnr,ator. CO 80229 FAX (303) 532 8621 hitp:/ ww.patrickengneenng.cam REVISION 1 3/14/2013 PROJECT NO.. 21273.003 PAWNEE RECYCLING FACILITY I DATE 11/12/12 OPERATIONS PLAN SCALE NTS PAGE P0OFESSIONAL DESIGN FIRM LICENSE NO. 184.000409 TRUCK TANK WASH DETAIL (3) EX -5G CONCRETE BLOCK PAINT FACE SAFETY YELLOW INCOMING 6"0 ALL UNDERGROUND PIPING FROM OUT -GOING BRINE TANKS SHALL BE DOUBLE -WALL PIPE SEE NOTE 1 ISSUED FOR RECYCLING DESIGNATION AND WELD COUNTY LAND USE APPROVAL V-4" �• 4 4" 4 a d • RIGID PIPE SUPPORTS • • 4 4 • a • • • 4 a • • • • • 4 • L 8" 1t-42„ 1" 20" MIN. 6" 0 1'-4" 1'-12" 8" MIN. 7'-0" _ 24 ' FO I Or - 4" 0 6" x 4" REDUCER SEE NOTE 1 4" MAGNETIC FLOW METER. MICROMETER, ULTRA MAG UMO6, w/ METER MOUNTED CONVERTER MOTOR OPERATED 4" BUTTERFLY VALVE, HAYWARD, SURE TUFF BYCS, OR EQUAL, wl MODULATING ELECTRIC ACTUATOR LOADING STATION DETAIL REVISION 1 3/14/2013 PATRICK ErgemaIRMICM ic I :V,) WLCI I:0nd Avt. Soon IC? TEL. (308) 532.8620 tY.eur"nraoe CO *102719 FAX (X 5398821 h111r 7vennv painckentynerring ctrn PROFESSIONAL DESIGN FIRM LICENSE NO. 184000409 PROJECT NO.. 21273.003 PAWNEE RECYCLING FACILITY I DATE OPERATIONS PLAN LOADING STATION DETAIL 11/12/12 SCALE NTS PAGE EX -5H 6" WYE REINFORCED CONCRETE BASE SEE STRUCTURAL DWGS. FOR REINFORCING AND FOUNDATION PAINT SAFETY YELLOW FG = 381.00 ISSUED FOR RECYCLING DESIGNATION AND WELD COUNTY LAND USE APPROVAL 6" 1'-6" /\\/\/\/ 4" LS 90 i/, A 6" 0 CPVC TO GRIT CHAMBER PIPE SUPPORTS FRAC HOSE QUICK CONNECT COUPLING TYPICAL (TYP.) PIPE SUPPORT 1'0" t ALL UNDERGROUND PIPING TO IN -COMING BRINE TANKS SHALL BE DOUBLE -WALL PIPE 6" CPVC TO GRIT CHAMBER 6" x 4" REDUCER UNLOADING STATION DETAIL REVISION 1 3/14/2013 PATRICK EINIMINEEIRING INC. 1400 Wont 122nd AN]. . S 102 Tilt (3003) 532 8620 Watrunntur, GO 80279 FAX (303) 537 8621 http1Mwn.p ilrckengneenng.corn PROFESSIONAL DESIGN FIRM UCENSE NO. 184-000409 PAWNEE RECYCLING FACILITY OPERATIONS PLAN UNLOADING STATION DETAIL PROJECT NO.: 21273.003 DATE: 11/12/12 SCALE: NTS PAGE: EX -5I 12• MAX PIPING CONTROL CONDUITS AS REQUIRED. COORDINATE WI ELECTRICAL AND CONTROLS Lui iREFER TO PLANS FOR PIPE QUANTITIES L6X4X1 SLV 1p' -0i MAX U -BOLT ro 4'0 SCH. 40 PIPE 317-\ 11 BASE PLATE. 1'X1• -1'X1•-1', WI (4)g A36 WITH SIMPSON SET, EMBEDMENT=5' (ICBO #5279) 711 11 GRADE NOTE: 1 ABOVE GROUND PIPING IS LOCATED WITHIN SECONDARY CONTAINMENT AREA ONLY. BUILDING OR VERTICAL STRUCTURE !WHERE APPLICABLE) 2'X}' STEEL BAR WELDED TO SUPPORT PIPE AND STEEL PLATE F 1 H MULTIPLE PIPE STAND CONDUIT CLAMP TO MATCH DIAMETER Of INSULATION JACKET INSULATED PIPES WI VAPOR BARRIER, UNINSULATED PIPES Wi NEOPRENE INSERT HYDRONIC PIPING STRUCTURAL STEEL CHANNEL, UNISTRUT OR APPROVED EQUAL 16 GAUGE STEEL PIPE SADDLE. 4' LONG ADJUSTABLE STEEL PIPE STAND STEEL PLATE 8-X8'Q' 4-X4'Xt STEEL PLATE ANCHORED TO WALL WI FOUR (4)' ANCHORS LOCATE HORIZONTAL AT APPROX 40F TOTAL SUPPORT HEIGHT U -BOLT 4' CONDUIT FOR CONTROL AND POWER SERVICE. (TYP) 5'x3'x}' STEEL ANGLE, WELDED I O SUPPOH I PIPE 4- SUPPORT PIPE. COORDINATE HEIGHT OF PIPE IN THE FIELD 8'X8 -X.4' STEEL PLATE. WELDED TO SUPPORT PIPE ANCHOR STEEL PLATE To CONCRETE Wl FOUR (4) ANCHORS 24'X24'X8- CONCRETE PAD GRADE SINGLE PIPE STAND ELECTRICAL AND CONTROLS CONDUIT SECURE STEEL PLATE TO CONCRETE WI FOUR (4) j 0 ANCHORS 4 • a• • ; ' A -♦ E ' 44 . 4 GRADE MOUNTED PIPE SUPPORT ISSUED FOR RECYCLING DESIGNATION AND WELD COUNTY LAND USE APPROVAL REVISION 1 3/14/2013 ENGINES:IMO NC. 1400 Wet 172nd Awl. Solo 102 TFI. (303) 532 6670 W.twnrcmta. CO 80279 FAX (30.3) 532 8171 http1Mww.p lnckergneenng.mm PROFESSIONAL DESIGN FIRM LICENSE NO. 184-000409 PROJECT NO.: 212%3.003 PAWNEE RECYCLING FACILITY I DATE: OPERATIONS PLAN PIPING DETAILS 11/12/12 SCALE NTS PAGE EX -5J FIXED RESTRAINT PIPE FLANGE 2" SQUARE PIPE 1" CHAMFER - ISSUED FOR RECYCLING DESIGNATION AND WELD COUNTY LAND USE APPROVAL SLIP RESTRAINT PIPE FLANGE BRACKET REINFORCED CONCRETE PEIR SLIP RESTRAINT SMALL ANNULAR SPACE TO ALLOW FOR PIPE MOVEMENT IX NOTE 1. ABOVE GROUND PIPING IS LOCATED WITHIN SECONDARY CONTAINMENT AREA ONLY. ® ® WELDED TOP PLATE BOLTED BASE PLATE (TYP.) PATRICK I:V.1 Wu6117%rW Art•. Suao WO TEL. (303) 532-8620 t'im:Lnnnilur. CO *102711 FAX (303) 5328821 Nip' 'Arms, pllnckc+x3nx onng ctrn PROFESSIONAL DESIGN FIRM LICENSE NO. 184000609 ♦6 a 4 • REVISION 1 3/14/2013 PROJECT NO.. 21273.003 PAWNEE RECYCLING FACILITY I DATE OPERATIONS PLAN PIPE SUPPORT DETAILS 11/12/12 SCALE NTS PAGE EX -5K Exhibit 7 WATER TREATM ENT CleanWave&M Water Treatment Service Mobile service for produced and flow back water For every barrel of oil or gas produced in the world approximately three barrels of water are produced along side. Furthermore 10%- 40% of the fluid volume used in fracturing operations flows back during the subsequent clean-up stages. At the same time changing climatic conditions along with socioeconomic and geopolitical concerns make access to freshwater increasingly difficult for operators around the world. Balancing the disposal and/or reuse of all this water and access to fresh water in a way that is environmentally acceptable and economically feasible remains a challenge to the oil and gas industry. Halliburton's mobile CleanWave`" system uses an electrical process that has the capacity to destabilize and coagulate suspended colloidal matter in water. When contaminated water passes through the electrocoagulation cells, the anodic process releases positively charged ions which bind onto the negatively charged colloidal particles in water resulting in coagulation. At the same time gas bubbles, produced at the cathode, attach to the coagulated matter causing it to float to the surface where it is removed by a surface skimmer. Heavier coagulants sink to the bottom leaving clear water, suitable for use in drilling and production operations. Reduce Environmental Footprint Halliburton's focus with the CleanWave service is to treat produced and flow back water to a standard suitable for reuse in fracturing or drilling fluids. In doing so, the volume of wastewater sent for disposal is minimized. Water acceptable for use in fracturing or drilling fluids is returned to the operator, reducing their demand for freshwater. Additionally, the CleanWave service can result in significant reduction of truck use in water management. On average, each CleanWave unit working monthly would eliminate 175 truckloads of water, 6,300 miles of truck traffic and 900 hours of road time and emissions. Operational Benefits Halliburton's mobile CleanWave unit has a design treatment capacity of approximately 20 barrels of water per minute. With easy scalability this gives operators the ability to MN a Clean Wave unit with 20 electrocoagulation cells treats 20 barrels per minute. Each electrocoagulation cell is capable of treating 50gpm. Coagulation of solids after Clean Wave treatment HALLIBURTON Baroid WATER TREATMENT quickly treat the large volumes of water in reserve and flow back pits and, depending on the operation, to treat flow back and produced water online during a fracturing operation. The CleanWave service was designed to remove suspended solids, oil, other insoluble organics and bacteria from the water. The operating conditions are regulated depending on the total dissolved solids (TDS) present in the water. Key Features • 99% reduction in Total Suspended Solids (TSS) • Treats water with TDS ranging from 100 - 300,000 mg/L • Coagulates particles < 1 micron • Reduces turbidity to < 10 NTU • Non -polymer based water treatment contributes up to 75% reduction in sludge generation • Breaks emulsions • Removal of divalents and heavy metals" • Fully automated • Scalable • Self-cleaning • One operator per shift Most effective at treating the following contaminants: • TSS • Total Petroleum Hydrocarbons (TPH) • Turbidity • Bacteria • Partial removal only. Complete removal requires further treatment General Specifications Power Requirement 150 kVA / 120 kW Throughput 20 BPM Hydraulic Capacity 1,000 GPM Weight 48,000 lb Dimensions 9'L X 42'W X 12'H Post Clean Wave treatment CleanWave water treatment effectively removes oil from contaminated water © 2010 Halliburton. All rights reserved. Sales of Halliburton products and services will be in accord solely with the terms and conditions contained in the contract between Halliburton and the customer that is applicable to the sale. H07734 09/10 N -J -J r 0 en C" -J _ www.halliburton.com HALLIBURTON Baroid Hello