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Home My WebLink About100-489o>r r • THE STATE Department of Environmental 011-1LASKL'1 GOVERNOR SEAN PARNELL RECEIVED FEB 0 7 2014 February 4, 2014 A0GCC Certified Mail, Return Receipt Requested Article No.: 7012 2210 0002 1216 2391 Wayne Svejnoha BLM — Division of Resources 222 W 7th Ave, #13 Anchorage, Alaska 99513 Conservation Division of Spill Prevention and Response Contaminated Sites Program File: 320.38.010 SCANNED 0 2 2014 Re: Potentiall Responsible Party Notice Letter and Information Request NPRA Legacy Wells - General Hazard ID: 26125 Ledger Code: 14339387 Dear Mr. Svejnoha: 610 University Ave. Fairbanks, Alaska 99709-3643 Main: 907.451.2181 Fax: 907.451.5105 This letter is to advise you that the Alaska Department of Environmental Conservation (ADEC) has identified the 136 legacy wells within the National Petroleum Reserve in Alaska (NPRA) as potential contaminated sites. Some of these wells require extensive cleanup of oil and other hazardous substances released to the environment. Since you are identified as a current or past owner and/or operator of these sites, please be advised you may be financially responsible or liable for the investigation and /or cleanup of any hazardous substance contamination that might be present. Alaska Statute 46.03.822 establishes who is liable for contamination. Records available to the ADEC indicate that you meet one or more of the following criteria: » owned or controlled the hazardous substance at the time of its release; » own(ed) or operate(d) the property or facility from which the release occurred; » owned or operated property at which the hazardous substance came to be located; and » arranged for transport, disposal or treatment of hazardous substances that were released. Site History From 1944 through 1982 the US Government drilled 136 wells to explore for oil and gas resources in the NPRA. It is our understanding that other federal agencies and some private companies may have operated or managed these sites in the past. We have also been informed that 23 of these well have been conveyed to public and private entities. The ADEC currently lists 14 of the 136 legacy wells on our database of contaminated sites. The Bureau of Land Management (BLM) is identified as the responsible party for the following sites. Wayne Svejnoha 0 2 February 4, 2014 • BLM Cape Halkett Drill Site (File # 300.38.108) • BLM East Simpson #2 (File # 300.38.109) • BLM East Teshekpuk Drill Site (File # 300.38.110) The U.S. Army Corps of Engineers, under the Formerly Used Defense Sites program, is working with ADEC under the Defense States Memorandum of Agreement on cleanup actions at the 11 Umiat test well sites. BLM is identified as the landowner in our records, and as such is identified as a potentially responsible party in addition to the Department of Defense: C Umiat Test Wells 1-11 (File # 335.38.001) The information contained in these files is part of the public record. Our databases are accessible on the Internet at: http://dec.alaska.gov/spar/csp/db_search.httn Additional Actions Needed ADEC sent a letter on July 11, 2013, identifying an additional 15 legacy well sites with confirmed releases (enclosed). As stated in the letter, ADEC recommends that BLM develop a plan to address known, suspected, and unknown releases at the legacy well sites, in coordination with the appropriate regulatory agencies. We expected a response to this letter before now. Please respond to this letter within 30 days. After we receive and review your response we will determine what additional actions will be taken regarding each site with known or suspected contamination. In addition, with your response, please complete and return the enclosed questionnaire requesting more information about past operators. In accordance with Alaska Statute Title 46, ADEC is authorized to provide regulatory oversight for any contamination response efforts initiated by the responsible party. However, if response actions by the responsible party are not satisfactory to ADEC, we may then assume the lead role in the investigation and cleanup efforts. In the event that State response actions are necessary, the responsible parties may be held financially liable for any response actions taken by the State. Alaska Statutes 46.04.010 and 46.08.070 establish cost recovery procedures for certain costs, including oversight activities, incurred by the State in responding to pollution incidents. If you are determined to be a responsible or liable party, ADEC may bill you at a later date for our expenditures associated with this pollution incident. Expenses for which we may seek reimbursement include: Staff time associated with general or technical assistance; work plan review; project oversight; general project management; legal services; interest; travel; equipment and supplies; and any contracting costs. Pursuant to Alaska Statute 46.08.075, the State may also file liens against all property owned by a person who is responsible or liable for State expenditures. Please respond in writing within thirty (30) days from the date of this letter addressing your intended actions with respect to this pollution incident. If you believe someone else is responsible for this pollution incident (e.g., a past owner or operation of the site) or if you have any questions concerning this matter, please contact Mr. Fred Vreeman at (907) 451-2181. The attached "ADEC Information Request" describes the minimum information expected in your response. Additional information may needed to evaluate the risks and responses required at each legacy well site. Sincerely, Fred Vreeman Environmental Program Manager G:\SPAR\CS\Contaminated Site Files (38)\320 National Petro Reserve Area\320.38.010 NPRA Legacy Wells General\2-2-2014 Letter\PRP Letter All Wells.docx Wayne Sveinoha Enclosure: 0 3 • ADEC Information Request Concerning Contaminated Sites BLM Legacy Wells Dispute letter date July 11, 2013 February 4, 2014 cc: Bud Cribley, Director, Bureau of Land Management Steven Cohn, Deputy Director, Bureau of Land Management Jolie Pollet, Branch Chief, Bureau of Land Management Robert Brumbaugh, Geologist, Bureau of Land Management Michael McCrum, Environmental Engineer, Bureau of Land Management Larry Hartig, Commissioner, Alaska Department of Environmental Conservation Lynn Kent, Deputy Commissioner, Alaska Department of Environmental Conservation Kristen Ryan, Director, Alaska Department of Environmental Conservation Lori Aldrich, Program Manager, Alaska Department of Environmental Conservation Steve Bainbridge, Program Manager, Alaska Department of Environmental Conservation Jennifer Roberts, Program Manager, Alaska Department of Environmental Conservation ADEC Response Fund Administration GASPAR\CS\Contarr nmted Site Files (38)\320 National Petro Reserve Area\320.38.010 NPRA Legacy Wells General\2-2-2014 Letter\PRP Letter All Wells.doe% 0 0 ADEC INFORMATION REQUEST Concerning a contaminated site(s) Re: Legacy Well Sites in and near the National Petroleum Reserve, Alaska (NPRA) Please precede each answer with the number of the question to which it corresponds. Please direct any questions concerning this information request to Fred Vreeman, Contaminated Sites Program, 610 University Avenue, Fairbanks, AK 99709; Phone: 907-451-2181. Thank you for your cooperation. 1. Provide name and company affiliation of the person answering the questionnaire. 2. Provide copies of all studies, reports, and supporting information (including preaquisition assessments and work done on behalf of other parties) which you have knowledge of which address past and/or present environmental conditions at the site. Identify the name, title, address, and phone number of the party(s) who are responsible for preparing the studies or information. Information which has been previously submitted to ADEC need not be submitted again (unless specifically requested in a subsequent communication) if you can provide the name of the office (and name and title of the DEC officer if known) to whom the report was previously provided. 3. Provide a description of any ongoing or planned investigations or cleanup work at the site. Identify the names, titles and phone numbers of the individuals responsible for preparing the studies or information. 4. Provide a description of known releases at the site (date of occurrence, quantity released, type of substance released, etc.) and a description of corrective measures that were taken. Provide information on any suspected releases which may have or are occurring. 5. Describe the nature of past and present operations at the site. In particular, any actions that may have caused the release or threat of release at the site. Describe the physical characteristics of the site including major structures, water wells, fuel or waste storage systems, drainage or septic systems, etc. 6. Provide a list of any permits issued by the Department which relate to activities at the site and a list of RCRA identification numbers (U.S. EPA identification numbers) which may be held. 7. Identify persons to whom you leased all or a portion of the property and describe the nature of their operations. 8. Identify the person(s) who used the site for disposal of substances deposited there, if any. 9. Provide copies of manifests for any hazardous waste and/or petroleum contaminated materials taken to or from the site. 10. Provide a list of persons and their phone numbers and addresses of persons who have knowledge about the use of hazardous substances at the site. 11. Provide information regarding the existence of insurance coverage for damages resulting from releases of hazardous substances and copies of all such insurance policies, both currently in effect and in effect during the periods of activity in question. 12. Describe the acts or omissions of any person, other than your employees, agents, or those persons with whom you had a contractual relationship, that may have caused the release or threat of release of hazardous substances at the site. a. In addition, describe all precautions that you took against foreseeable acts or omissions of any such third parties. 13. Describe the care you exercised with respect to the hazardous substances found at the site. 14. Describe the physical characteristics of the site including structures, wells, drainage systems, etc. THE STATE July 11, 2013 'ALASKA GOVERNOR SEAN PARNELL Wayne Svejnoha Supervisory Minerals & Energy Specialist 222 W 7th Avenue, #13 Anchorage, Alaska 99513 Re: BLM Legacy Wells Dispute Dear Mr. Svejnoha: Department of Environmental Conservation Division of Spill Prevention and Response Contaminated Sites Program 610 University Ave. Fairbanks, Alaska 99709-3643 Main: 907.451.2181 Fax: 907.451.2155 The Alaska Department of Environmental Conservation (ADEC) — Contaminated Sites has reviewed the National Petroleum Reserve in Alaska: 2013 Legacy Wells Summary Report dated February 2013, containing updated information on the status of the 136 Legacy Wells located in the National Petroleum Reserve — Alaska (NPR -A), and the draft National Petroleum Reserve in Alaslm. 2013 Legacy Weiss Strategic Plan dated May 2013. ADEC has also reviewed the response by the Alaska Oil and Gas Conservation Commission (AOGC). We concur with the response by ACIGC and have no further comment regarding the priorities. We do have comments about the investigation and cleanup plans presented in the report. With this letter we arc outlining regulatory requirements related to the environmental work that is proposed and required as part of these cleanups. ADEC is concerned that the 2013 Legacy Wells Strategic Plan prepared by the BLM does not include either assessment of the contingency for assessment of known, likely, or unknown but possible contaminant releases. In addition, BLM plans for surface cleanup of these wells should be made clear in the plan. At least one of these legacy wells has extensive PCB contamination and has resulted in a multi-year cleanup totaling tens of millions of dollars. At others, solid waste disposal practices have resulted in releases to the environment with estimated cleanup costs in the hundreds of millions. Known releases documented in the records we reviewed include crude oil, gasses, refined oil and fuel, drilling fluids that include various organics, metals, and other chemicals, and unknown contaminants from drums and other containers observed to be damaged and abandoned at the various well sites. There are 13 legacy well sites with known releases currently on the DEC contaminated sites list. Many of these are in the process of being addressed, cleaned up, and closed. From our Waited records review there are 15 additional legacy well sites with confirmed releases. These should be prioritized for initial records reviews and then added to the BLM contaminated sites list under our cooperative agreement. Suspected releases include fuel releases from operations, storage, and fuel spills at the sites, impacts to various surface water bodies from spilled fluids during drilling and breaches of containment at reserve and flare pits, continued surface runoff from drilling fluids uncontained at several sites, and down -hole substances that were ejected from the holes over time or during blowouts or drilling operations. 1 Wayne Sve noha ? July 11, 2013 Y The.BLN-1 plan to address these known, suspected, and unknown releases at legacy well sites is notably absent from the documents presented to date. The three primary regulatory agencies that need to be involved in the plan are ADEC — Contaminated Sites, Alaska Oil & Gas Conservation Commission, and ADEC — EH/Solid Waste. Other agencies will need to be consulted. as well. Below we provide recommendations for a coordinated plan using the Uniform Federal Policy for Quality Assurance Project Plans (UFP-QAPP) that will involve all of the regulatory agencies in one coordinated manner. This will allow BLM to address these sites in a consistent and coordinated project which fulfills all of the regulatory requirements so that the sites do not need to be re -visited in the fu=e xvhen they are closed after this project. Attached are our comments on each specific well. The acronyms used on the list include terms that are typically used in a CERCLA type investigation however they are also suitable for investigations conducted under the State of Alaska cleanup rules. These include the following; Historical Records Review (HRR) 'chis is recommended for almost all of the well sites. Much of the information required for these reviews is already contained in various reports and appendices or in BLM files. The Historical Records Review should document the type of releases that might have occurred from drilling operations as well as historical use of the site, and should capture all available information on the drilling fluids used and any product produced or released. Preliminary Assessment (PA) This is recommended for almost all of the well sites. A Preliminary Assessment is a limited scope investigation that provides an assessment of information about a site and its surrounding area to distinguish between sites that pose little or no threat to human health or the environment and sites that require further investigation. The PA is a CERCLA defined document and typically does not require sampling. Site Inspection (SI) If the PA recommends further investigation, then an SI is necessary. The SI is a CERCLA defined document, and it is analogous to an initial report of contamination under state cleanup rules. On some legacy well drillings sites it is evident now that an Sl is required just from a review of the reports. An SI investigation typically includes the collection of samples to determine what contaminants are present at the site and whether they are being released into the environment. An approved site specific workplan is required under both CERCL-A and 18 AAC 75 prior to SI sampling. The SI typically is not intended to develop a full site characterization, but is limited to determining the presence or absence of a release. If contamination is found after completion of the HRR, PA, and SI then a RI/FS under CERCLA, or a Site Characte-rizatiowlteportandcleanup-Alas,under-l-fi-AAC7iis`required. -- ----- - -- — --------- - DEC recommends that BLM incorporate into the strategic pian the processes outlined in this letter. A team of agencies composed of AOGC, DEC -CS, EPA as required, and DEC -EH should address regulatory and technical requirements for these well closures. By cooperating and working together with the regulatory agencies BLM will save time and expense, and regulatory uncertainties will be avoided. The strategic plan should reference a project to prepare a generic workplan. DEC suggests that BLM utilize the generic UFP-QAPP workplan format for the required environmental work. If properly prepared, the workplan could encompass most of the investigations and cleanups required at these sites over multiple years. At other multi -site projects we have found this to be an effective way to reduce uncertainties and risk in these types of investigations. A very small site specific FSP could then be developed as BLM approaches each drilling site. Regulatory decisions made during workplan development would provide more certainty in the planning process for cleanups. G:\SPAR\CS\federal F2cilitie3\Ci%ih2n 1-cdcrrt Agr=ics\DOl\B[.Ni\1'roiens\lxgAey Wells\7 11 13 Luter to KIN on lxbxy wells.doex Wayne Svejnoha 3 0 July 11, 2013 Please review the attached list of specific sites. If you have any questions, please do not hesitate to call me at 907-451-2181 or by email at fred.vreeman@alaska.gov. I look forward to working with you as the Federal Government fulfills its requirement to clean up these well drilling sites in Alaska. Sincerely, y' Fred Vreeman Environmental Program Manager Enclosure: SPAR Response with Legacy Wells cc: Bud Cribley, State Director, Bureau of Land Management Steven Cohn, Deputy State Director for Resources, Bureau of Land Management Jolie Pollet, Branch Chief, Bureau of Land Management Robert Brumbaugh, Geologist, Bureau of Land Management Michael McCrum, Environmental Engineer, Bureau of Land Management Cathy Foerster, Commissioner, Alaska Oil and Gas Conservation Commission Larry Hartig, Commissioner, Alaska Department of Environmental Conservation Kristen Ryan, Director, ADEC Division of Spill Prevention and Response Steve Bainbridge, Program Manager, ADEC Contaminated Sites Program Jennifer Roberts, Program Manager, ADEC Contaminated Sites Program GASI'AR\CS\Fedcrrl Fo61ibLy\Gvi6n Falctul AgcnnCs\DOI\BI.N1\Proitcts\lA'6.1' q W03\7 11 1314tur to Aim\I on Ug2cy Wclls.doex Well Name operator I RP I Land Simpson Core Test #5 1! Na 1 BLM Simpson Core Test #6 US Na I BLM Simpson Core Test #7 us Na 1 Bl. M Sin son Core Test 98 US Navy 113LM Si son Core Test #9 U5 Na I BLM Sinwson Core Test #1f) U.S Navy! BLM Core Test #11 AOGCC Subsurlaca I BLM Core Test #12 FUSNa a I BLM Core Test #16 a I BLM Core Test #17 US Na 1 BLM Core Test 018 US Na I BLM Core Test #19 US Na 1 BLM t Core Test #20 US Navy 1 BLM i Gore Test #21 2S Na 1 BLM I Core Test #22 US Na 111•LM I Core Test dnlf fluids left in hole i BLM Core Test �#2vy I BLhA n CareTest #25 US Na Y I BLM K Core #1 US Navy i BLM 1 -t- *1 SPAR Response with Legacy Wells Lisl.xlsx 2013 Risk Ity CSP Status I Fito tllHazid Rolea5e7 Nnne f+lone IYOMWil Low RNooe ane None Unused, Unused, I None Unused, i None Uncased, None None None None (None Unknown Unknown Page 1 of 14 •I AOGCC Subsurlaca AOGCC Surface SPAR W arkgroup Notes Status Status Need HRR, PA, S1 no data no data Need HRR. PA. SI no data no data Need PA ind drill fluid assessnsenl & workplan drillin 11uids left in hole no data Need PA ind drill fluid assessment & work an drilling fluids left in hole no data Need PA incl drill Ifusd assessment & work Ian dnlf fluids left in hole no data Need PA ncf drill fluid assessmcnf &work Ian dnllxs fluids tett rn hale no data well skelch provided by Need PA ind drill fluid BLM not consistent with assessment & work Ian AOGCC or BLM data no data Need PA ind drill fluid assessment & work Ian dnflin fluids left in hole no data Need PA and 51 ind 13611 fluid assessment. workplan rid sampling stressed debfis, partially as blowout and fire rove elated site areas Need PA incl drill fluid assessment & workplan dn lling fluids left in hole no data geed PA ind drill fluid assessment & wOTk Ian drij I ing fluids teff in hole no data Need PA incl dfifl nutd assessment & work Ian drillin fluids left m hole no data Need PA incl drill fluid assessment & work Ian drillin ituids left in hole no data Need HRR. PA, SI no data no data Need PA incl drill fluid assessment & work Ian drillin fluids felt in hole ria data Need PA incl dnll fluid assessment & work larx drillin fluids left in hole no data Need PA incl drill fluid assessment & work Ian drillin fluids Teff in hole no data Need PA ind dnll fluid drflfing fluids and ball assessment & Workplan peen hammer left in hole no data overshot, drill collar, rock revegelated —131 Need HRR, PA bit, and N -reds left in hole can't find it Review Report as PA. No evidence of sheen, stressed veg, or drilling Not abandoned, waste on surface. Veg ----_— , ,raw,, plunaed to surface site not cleared •I SPAR Response with Legacy Wells LisLxlsx Page 2 of 14 is • vi nce o BLM 2013 Risk Historic AOGCC Subsurface AOGCC Surface Well Name Operator I RP I Land Mgr Priority CSP Status file #IHazid Release? SPAR Workgroup Notes Status Status plugging operations inadequate and Wellhead tell as Umiat 43 US Navy I BLM I FUDS None pending dos 335.38.00113092 Yes. see file 'Plugged by BLM in 2004 incomplete historic site? plugging operations inadequate and Wellhead left as Umiat #4 US Navy I BLM / FUDS None pending dos 335.38.001!3079 Yes, see file Plugged by BLM in 2004 incomplete historic site? plugging operations inadequate and Wellhead left as Umial 98 US NaMy I BLM I FUDS None pendinq dos 335.38.001/3D81 'Yes, see_ _file Plugged BLM in 2004 incomplete historic sile? plugging operations inadequate and Wellhead left as Umiat #1'0 US Navyj BLM_I FUDS None pendingdos 335.38.00113082 Yes, see fila Plu ed by BLM in 2004 incomplete historic site? Need HRR, PA, SI with sampling. Drilling mud assessment. Surface Plugged to 7868'. Drilling Cleanup. Photos - evidence mud and diesel to Awuna #1 USGS I BLM Medium None None Yes of erosion into lake surface. > 100 _Pylons Need HRR, PA, SI with sampling. Drilling mud Wood , metal, assessment. Surface Plugged to 2039'. Diesel plastic debris. Fast Simpson #1 USGS I BLM Low None None Yes Cleanup. to surface. >10D Pylons Need HRR, PA, SI with Wood and metal Drilling mud assessment debris. Pylons - Photos straw areas of no Plugged to 2047'. Diesel Tankage for lk ' #1 USGS / 8LM Low None None Yes ve elation. to surface. flammable fluids Need HRR. PA, SI wdh sampling. Drilling mud assessment. Surface Plugged to 1400'. Drilling Wood and metal Koluktak #1 USGS I BLM Low None None LYes Cleanup. mud & diesel to surface debris Pylons Need HRR, PA, SI with sampling. Drilling mud assessment. Surface Plugged to 1894'. Diesel Wood and metal Ku am 91 USGS I BLM Low None None Unknown Cleanup. to surface debris. Pylons Need HRR, PA, Sl with sampling_ Drilling mud assessment_ Surface Plugged to 4464'. Drilling Wood & metal Kuyanak #1 USGS I BLM Low None None Yes Clean mud & diesel to surface debris. Pylons Need HRR, PA, SI with sampling. Drilling mud assessment. Surface Cleanup. Photos show Plugged to 1840'. Diesel Plastic and metal Lisburne 41 USGS I BLM Low None None Yes stained soil to surface debris. Need HRR, PA, SI with sampling. Drilling mud assessment. Surface Plugged to 8192'. Drilling Wood and metal North Iii ok $1 USGS I BLM Low None INone Yes Cleanup. mud & diesel to surface debris - Page 2 of 14 is • Well Name Peard South Meade #1 1 RP 1 Land 1BLM BLM #1 4USGS ! BLM SPAR Response with Legacy Wells Usl.xlsx ;013 Risk &W CSP Status File XlHazkl T Page 3 of 14 AOGCC Subsurface AOGCC Surface WAR Workgroup Notes Status r Status � deed HERR, PA SI with iampling. Dining mud rssessment- Surface ;leanup. Site photos show areas of stressed iegetalion. No issues Plugged to 2232'. Diesel Wood and metal soled in USGS re ort. to surface debris. Pylons Need HRR, PA, SI with sampling_ Drilling mud assessment Surface Plugged to 2026'. Diesel Wood and metal Cleanup. to surface debris. P Ions Add to She list. Need HRR, PA, SI with sampling. Drilling mud assessment. Surface Cleanup. Od reported bubbling to the surface within reserve pit in 1982. Oily residue and sheen observed adjacent to east side of reserve pil, down hole material at the Plugged to 1875. Diesel Wood and metal surface to surface debris. P ons Add to Site list. Need HRR, PA, S) with sampl'uig. Drilling mud assessment - Surface Cleanup. Reserve pit berm had breaches anowirrg water to exit. Oil - stained sediment was observed above the Plugged to 1478'. Diesel Wood and metal waterline of the I. to surface debris. Site photos may show hydrocarbon sheen on Plugged to 2600'. Drilling Wood and metal water in well cellar mud & diesel to surface debris. Pylons Add to Site list. Need HRR, PA, SI with sampling. Drilling mud assessment. Surface Cleanup. Berms have been breached an allow water to flow out of reserve piUllare pit. Rising bubbles of ail observed in Hare pit 1484. Photos Show Plugged to 1825'. Diesel Metal debris. ra.. v-1 v.nnnralinn to Surface ... 0 •I SPAR Response with Legacy Wells Lisl.xlsx Page 4 of 114 0 0 vi encs o BLM 2013 Risk Historic AOGCC Subsurface AOGCC Surface Well Name Operator 1 RP f Land Mgr Priority CSP Status File #fHazld Release? SPAR Workgroup Motes Status Status Need HRR, PA, Sl wrlh sampling. Drilling mud assessment Surface Cleanup. Breaches in berm allow water to flow into and out of reserve pit, sheen on Plugged to 2700' Diesel Wood and metal West Dease #1 USGS l BLM Low None None Yes surface water in well cellar to surface debns. Pylons Add to Site list. Need HRR,. PA, SI with sampling. Drilling mud assessment. Surface Cleanup. Water flows into the pits through breaches on the eastern berm and out of the pits through breaches on the northern and western berms. Downhole material Plugged to 228'9'. Drilling Wood and metal South Harrison Bay #1 USGS f BLAB Low None None es Present at surface mud & diesel to surface debris. Add to Site list. Need HRR, PA, SI with sampliing. Drilling mud assessment. Surface Cleanup. Stressed vegetation noted and apparent in site pholos. Plugged to 2443'. Drilling West Fish Creek #1 USGS 1 BLM Low None None Yes Drilling mud around well mud & diesel to surface Pylons Need HRR, PA, SI with sampling. Drilling mud assessment, Surface Cleanup. High TPH Plugged to 1977'_ Drilling wellhead sticking concentrations underneath mud under plugs. Diesel up. Wood debris. Fast Simpson #2 USGS 1 BLM I Low _ Active 300.38.10912691 Yes, see file the rig inundation to surface Pylons South Barrow 94 US NavyiNorth Slope Bono None None None Unknown Need Surface Status completed gas well - no data South Barrow #5 USAF - BLM Unknown None None None. Unknown Need Surface Status completed gas well no data South Barrow #& US Na /Norlh Sto Burg None None None Unknown Need HRR, PA, St no data no data South Barrow #9 US NavyfNarih Slop2 Boro None None None Unknown Need HRR, PA, Sl no data no data _ South Barrow #10 US Navyfflorlh Sto Bora None None None Unknown Need Surface Status com ted gas well no data South Barrow It12 US Na /North Slope Baro None None None Unknown Need HRR, PA. Sl no data no data BLM well skMh not consistent with AOGCC South Barrow #14 US NavyMorth Sloe Boro None None one Unknown Nsed HRR. PA, St data no data Need PA ind drill fluid well left filled with drilling South Barrow #16 US NavyiNotih Slope Bora None None None Unknown assessment & workplan mud and diesel no data Need PA incl drill !turd tubing in well. no perfs, Soulh Barrow 017 US Na /North Sloe 13ora None None None jUnknown assessment & work fan I unknown fluid, I no data Page 4 of 114 0 0 SPAR Response with Legacy Wells Lisl.xisx Page 5 of 14 •I E CYfuu .v v AOGCC Subsurface A Surlaco TEHILM T013 Risk CSP Stilus File #IHaaid Historic Rekeasa7 SFAR YUnrkgroup Nates 5latus at US $1<ntus Well Name flperatar f RP f Land Mgriority Unknown Need Surface Status corn feted as well no data 5aulh Barrow #18 US Na INorlh Slo a Bora None None None Unknown Need HRR, PA, St no data no data Walak a #1 USGS! Unknown None None None rsg 890`. Multiple cement plugs of unknown volume. Shallowest None None Unknown _ Need HRR, PA, SI SOD' no dada Gubik #1 US Na d Ur#cnown Low Add to Site list. Need HRR. PA. SI with sampling. csg Q SOD' Well blowout Drilling mud assessment. from zone al 1SOT during Surface Cleanup. Photos plugging operations show disturbed/ slashed Plugging never completed after blowout. no data Gub* #2 US Na ! Unknown Low None Nora es areas two downhole Dement plugs of unknown depth Mone None Unknown Need MR. PA. Sl and volume no data Grandstand #1 US Navy 1 Unknown None Add to Site list. Need HRR. PA, SI with sampling. Dnliing mud assessment. Surface Cleanup Sediment from the reserve pit was excavated and spread over the pad to drill a 2nd well at this location, Upon completion of the 2nd well. the sediment was pushed back into ft reserve pit.. Area does not appear to be revegetaling. perhaps from the presence property plugged but no of drilling mud at the data on abandonment None None Yes surface status no data W 7 Foran #1 " USGS I Unknown Low on Site list. Need HRR, PA, SI with sampling. Drilling mud assessment. Surface Cleanup. Slressed vegetation, photos show plugged, but not open csg; metal & Active 306.3$.108f2689 Yes. see file site underwater abandoned at surface corwsele debris under 5' of water, Cape Halken #1 " US Na (Unknown Low None Unknown !Need HRR, PA. SI es to 27' open C_s Min a Veloei #1 U5 Na f t3LM one None csg @ 31" 280' of drill pipe, drill collar, and Core Unknown Need HRR. PA, SL barrel left rn hole. neve etaled Ournalik Core #i US Na / BLM None -No obsery None !None Page 5 of 14 •I E SPAR Response with Legacy Wells Lisi.xlsx Page 6 of 14 • • WI F3nCe Q BLM 2013 Risk Historic AOGCC Subsurface ADGCC Surface Well Name Operator t RP I Land Mgr Priority CSP Status File #IHazid Release? SPAR Workgroup Notes Status Status Need HRR, PA, Workplan for St with Sampling. Drilling Mud Assessment. Surface Cleanup. Photos show debris, stressed No csg. 15' of drift pipe Oumalik Care #2 US Navy 1 ULM Low None None yes ve elation and rock hit left in hole. no data Need HRR, PA, Workplan for Si with Sampling open csg & other Drillip) Mud Assessment. piping sticking out Surface Cleanup_ Reports of ground; wood, of debris, drilling muds on melat, conciele Oumalik Core 011 US Navy t BLM Low None None Yes surface (__q to 9'. debris open csg sticking out of ground; wood & metal 0umalik Core #12 US Navy I BLM Low None None No Need HRR, PA, SI no data —__—debris _„ debris buried by landslide. Need HRR, PA, St, Well not no dala on Sentinel Hill #1 US Navy 1 BLM Low None None Unknown ap panent in site Rholos Csq to 3t1'. underwater status Need IQR, PA, SI. No evidence of sheen, open crag slightly stressed veg, or drilling above ground waste on surface. Veg 37' of csg, drilling fluids level; wood and S imp son Core Test #1 US Navy 1 BLM Low None None No appears healthy lett in hole metal debris Need HRR, PA, St. No evidence of sheen, stressed veg, or drilling waste on surface_ Veg 76'01 Csg, drilling fluids Simpson Core Test #2 US Navy I BLM Low None None No appears healthy left in hate no data Need HRR. PA, Sl. No evidence of sheen, stressed veg, or drilling waste an surface. Veg 61' of csg, drilling fluids Sim sun Core Test #3 US Navy I BLM Low None None No appears healthy left in hole no data Need HRR, PA, St. No evidence of sheen, stressed veg, ordrilling waste on surface. Veg --60' of crag, drilling fluids Sim eson Core Test #4 US Nayy t BLM Low Norse None No apecars healthy left in hole no data Need HRR, PA, St. No evidence of sheen, stressed veg, or drilling waste on surface. Veg csg cemented @25% open csg sticking Songsoncore Test #13 US Na 1 BLM Low None None No appears health dritin fluids IeR in hole_ out of round Need HRR, PA, SI. Vegetated, no evidence of crag cemented @2D'; open csg sticking Simpson Core Test #14 US Navy ! BLM Low None None No release. drillin fluids left in hole out of ground Page 6 of 14 • • SPAR Response with Legacy Wells Lisl.xlsx ism son Core Fest #26 t=vrdence or Medium AOGCC Subsur(aen ADGGC Surface 13LM 2013 Risk CSP Status File WHazid Historic Retease7 SPAR Wwkgroup Notes Status Status Well Name operator r RP 1 Land Mgr Priority Unko Need HRR, PA. SL US Na ! $LM open casing None Nave Vegetated. no eV4dence of cog set shallow; drilling slicking nut of Low No release- fluids left in hole round Simpson Core Teri #14a US Na !BLM Low None None & weilhead slick Need HRR. PA, SI crude nil left in hole open casing Need HIR, PA, Workplan Vegetated, no e+wdence of csg cemented 12181; slicking out of openrigd ng No release. drillingfluid left in hole round Simoson Care Tesl #15 US Na !BLM Low None None d wooden cellar, Need HRR, PP, SL Sate a9 r�110'. dolling fluids wood 8 metal ism son Core Fest #26 US Na ! BLM Medium None None res Sim san Core Test 027 US Na J 13LM IJone None None Unko Sim son Gore Test #28 US Na ! $LM Low None Nave Yes clmnnnn Core Tesl #29 US Navy! BLM Low Norte No No Simpson Core Test 030 US Na 1 !BLM Core Test #30a JUS,Navy 1 BLM Low None f'tone n Gore Test #31 JUS Navy/ BLM None Page 7o(14 photos appear to show oil at surface, from a natural csg Q 350'. Completed in oil seep, seep, also drilling mud in oil well Open perfs. At 1welhead sticking sacks on the tundra one lime capable of up_ metal debris PI u ed b BLM in 2004. unassisled flow. and rustingbarrels 'Need HRR, PA, St. Site photos appear to show Oil csg cemented at surface, from a natural @i02;dnllutg fluids nn oily ground; csg seep- Plugged by BLM in including diesel and & weilhead slick vin 2004 crude nil left in hole out of ground Need HIR, PA, Workplan for Sl with Sampling- openrigd ng ❑rilling Mud Assessment . out grouunnd in Surface Cleanup. Site d wooden cellar, photos appear to show a p le of drilling mud about a9 r�110'. dolling fluids wood 8 metal 160 feel tram the welt tell in hole debris. Solid waste Need HRR, PA, Sl_ No evidence of sheen, stressed veg, or dri" waste on surface. Veg csg cemented at 1S2'; open csg. Wood a ears healthy dnknq fluids lett in hole and metal debris Need HRR, PA, SI. frilling mud at surface. but well is also in the middle of a large in oil seep; Open oil seep and surrounded by cog sticking up; pooled oil. Plugged by BLNI csg cemented A150'; wood & metal see Holes in 20514- drillin fluids left in hole detail on oily ground; tog Need HRR. PA, Sl. Well is wellhead slick in the middle of a large oil seep and surrounded by csg cemented at 100% out of ground. pooled oil. Plugged by 131. dulling mud left in hole. wellhead leaking see noses in 2004 gas blowout at 423' gas Need HRR, PA, St. Leaky valve replaced in 2001, little evidence of contamination following valve on city ground; rig replacement- Plugged by csg cemented at 100'; & wellhead stick see notes BLM in 20174 iddifing fluids, left in hole out o1 round SPAR Response with Legacy Wells List.xlsx Page 8 of 14 • • yr enco o BLM 2013 Risk Historic AOGCC Subsurface AOGCC Surface Well Name Operator f RP f Land Mgr Priority CSP Status File glHasid Release? SPAR Workgroup Notes Status Status Need HRR PA, Workplan csg Cemented at for Sl with Sampling. 1028', cement plugs a1 Drilling Mud Assessment. 6387' and 5520'. Fish in Surface Cleanup. Drilling hole, drilling fluids Iefs in No data. Open Simpson Test Welt #1 ak US Navy1 BLM Low None INone yes muds near wellhead hale casing Need HRR, PA, Workplan for Sl with Sampling. Dolling Mud Assessment. Surface Cleanup Also Wellhead sticking evidence of a natural seep- above ground, Tar sheens in the summer ST from 2552 to 3018. wood, melel, and months. BLM is concerned csg @2915. Slotted liner concrete debris. Fish Creek #1 US Navy I BLM Medium None None Yes about exposure to wildlife to TO. Completed oil well Rusting barrels Need HRR, PA, Workplan for SI with Sampling. rasing cemented at 48; Drilling Mud Assessment. gas 0mv and explosion Surface Cleanup. Small gas while drilling at 863'; hole leak in wellhead flange, will Filled with fresh water to Wolf Creek 91 US Navy f BLM Low None Nano No flow if the valve iso en 330' No data. csg cemented a[ 53';hole left tilted with fresh water, Wolf Creek 02 US Navy 1 BLM Low Noire None No Need HRR. PA. Sl. fish in hole csg cemented at 107'; No data bridge plugs from 1447 to 1735 and from 554 to Wolf Creek #3 US Nayy I BLM Low None None No Meed HRR, PA, SI. 661, No data Add to Site list. Need HRR, PA, SI with sampling. csg slicking out of Drilling mud assessment ground with wood Surface Cleanup. Sheen on plug on top; solid surface water in well cellar, csg cemented at 30'; drill waste; wood hundreds of drums indicate pipe, drilling mud and debris; about 200 Skull Cliff Core test #1 US NaMy I BLM High None None Yes polential for cornlamrna[ion diesel left in hole nisling barrels Need HRR, PA, SI. Two open csg, wood drums are floating on a building; pylons; pond near the well. csg cemented at 1000', wood & metal Kaolak 01 US Navy I BLM t ow None jNone lNo Potential for hurried landfill. fdriltingluidsieftin hole debris Page 8 of 14 • • SPAR Response with Legacy Wells Lisl.xlsx 181-11119013 Risk Well Name Operator f RP ! land Mgr Priorlty CSP Status File 1NHazid #1 1 U Navy 19LM #1 JUS Navy/ umatik Ill US Na I BLM Low None None as[ Oumalik #i US Na !BLM Low None None #1 N East Topagoruk #1 USN l BLM Knifeblade #1 US Navy! BLM Page 9 of 14 Subsurface `AOGCC Surface SPAR Workgroup Notes Status Add to Site list. Need HRR, PA, SI with sampling. open flange Q Drilling mud assessment. Surface Cleanup. Drilling Gas well. Open ports. ground level. Mud pile overgrown with Drilling fluids and Metal & wood v , etallon and lichen tubulars lett in hole debris Need HRR, PA, SI. No evidence of sheen, stressed veg, or drilling csg cemented at 502'; open casing slicking out of waste on surface. Veg plug at 3470 to 3511'; ground. Wood appears heall drilling nuids left in hole debris. Open casing below Add to Site list. Need HRR, ground level. PA, SI with sampling- Revegetated. Drilling mud assessment. Numerous metal Surface Cleanup. Debris csg partially cemented at I support structures and drilling muds. Stressed 2762'. Plug at 2543% sticking up. vegetation Dridin mud left in hole Concrete debris, plate welded to pipe: l' of pipe rsg cemented at 1100'. sticking up - Need HRR. PA. SI. Drig fluids left in hole Wooden debris. Add to Site list. Need HRR, PA, SI with sampling. Driving mud assessment. open csg broken Surface Cleanup. Downhole material present csg cemented at 6073'. off and sticking up: at surface, area mostly original hole drilled to wood, metal, revegetated. Diesel still 7154'& junk len; concrete and other occupies the ground sidetrack hole left wilh debris. rusting dreulatioir lines. drillina fluids barrel Add to Site list. Need HRR, PA, SI with sampling. Dolling mud assessment. Surface Cleanup. Pile of tsg 10 1100'; pkig al open casing drilling muds is next to the 1049% drilling mud below sticking up. Wood, teller. No offical reserve pit plug: unknown fluids in metal, and glass noted o en hole debris. open casing Need HRR, PA, SI. BLM sticking up. Wood, stales that there was no metal, and glass debris at this site in 2012. csg cemented at 420% debris - •I 0 SPAR Response with Legacy Welts Lisl.xlsx Paye 10 of 14 0 0 w once a BLM 2013 Risk Historic AOGCC Subsurface AOGCC Surface Well Name Operator I RP f Land Mgr Priority CSP Status File #IHazid Release? SPAR Workgroup Notes Status v F Status open casing sticking up. Wood, metal, & concrete debris rusting Need NRR, PA, SI. Reports barrels. One indicate solid waste csg cemented to 45';fish marked flammable Knileblade #2 US Navy I BLM Low None None No drums in hole hazard. open casing slicking up; metal & Krideblade #2a US Navy 1 BLM Low None None No Need HRR, PA, SI. csq cemented at 38% concrete debris Need HRR, PA, SI including learning assessment. Site partially No wellhead. submerged intermittently csg cemented at 80; Metal. Solid waste North Simpson Test Wel 4 US N2n I BLM Low None None No during the summer dri0ing fluids left in hole ? No dala crude wellhead. Need HRR, PA, St. Surface csg cemented at 685'; Wood and metal Umiat 01 US Navy J BLM I FUDS Medium Cleanup co 335.38.00113090 Yes, see file Cleanup drillinq fluids left in bole debris No wellhead. Gravel pad partially csg cemented a1486; revegelaled wood Need HRR, PA, SI. Surface cement plug from 440 to debris and pipe Umiat #i t US Na I BLM I FURS Low pending dos 335.38.00113083 Yes, see file Clea 490'; sticking u csg cemented at 7206'; vVefNwad- Gravel various plugs from 8250' pad revegetaled 7 South Sirnpson 01 US Navy I BLM Low None None Yes Need HRR, PA, SI. to surface No data Add to Site list. Need HRR, PA, SI with sampling. Drilling mud assessment. Surface Cleanup. Large quantifies of ferrous oxide, zinc oxide, zinc carbonate, and barium sulfate were added to drilling muds. Stains apparent in photos. BLM field camp an site. Walls between the reserve and Pare pits have eroded. Wellhead and Water flows into surface gravel pad. ? No Wook #1 USGS I BLM Low lNone Name Yes water during break22L no data data Paye 10 of 14 0 0 SPAR Response with Legacy Wells Lrsl.xlsx BLM 2x13 Risk Well Name 10porator I RP I Land Mgr Priority CSP Status I File #IHazid Arca- Barrow Cure #1 US Na l til.M Avak 01 US Navy I BLM Barrow Bi R' #1 US Na I BLM Barrow Cafe Rig Test 91 US Na I BLM #2 I US Navy I BLM #1JUS N,a I BLM H' h NOr1e None Test Well #1 US Test Well #2 US Barrow Test Wetl #31115 Na IN©r1h Slo c Bora IAedium None None Unknown Page 11 of 14 Subsurface -FAOGCC Surface SPAR IWorkgfoup Notes Status _ ___ araiu5 Need HRR, PA, SI. Surface Cleanup, Photo CIMG0218 csg cemented at 53` shows area of disturbed tubing hung to 708': hole open casing vegetation that should be heft filled with drilling mud slicking up; wood & investi algid durin Sf and diesel metal debris open casing Need HRR. PA, St. Surface csg cemeoled at BIF. sticking up; wood & Cleanu-. lu set at 1348' metal debris Not abandoned, site not cleared, Need HRR, PA, SI. Surface open casing 7? No Cleanup no data data Not abandoned, site not cleared, Need HRR. PA, SI. 'Surface open casing 77 No Cteanu no data data Need HRR, PA, St with sampling. trilling mud assessment. Surface Cleanup. Drilling Muds on Not abandoned, site -slowly revegelatmg site not igred, More information on drilling open casing 7? No mud specifics rs being researched no data data Need 1lRR, PA, SI wdh sampling. Drilling mud wellhead leaking assessment. Surface cemented Csg to gas!? Wood & Cleanup- Cellar does not 1270;slotted liner to metal debris. Area retain water 1956': tbg to 1939 affected 50'x50' Need HRR, PA. SI. Drilling Csg cemented at mud assessment. Surface 441'.hole Iell willed with open pipe; metal & Cleanup- On mads stem water concrete debris Need HRR, PA, Sl. Drilling Csg cemented al 2260'; mud assessment- Surface periorated liner to TD. wood, metal & Cleariu . fln road s stem lin Completed well. Conerete debris Need HRR, PA, SI with sampling and workplan. Drilling mud assessment. Surface Cleanup. Drilling +csg cemented at 10461: open c5g slinking mud at surface. Sheen on hole left filled with drilling up; wood & metal surface wafer in well cell larQuids and wafer. de" 0 SPAR Response with Legacy Wells Lisl.xlsx Well Flame Operator I RP I Land Mgr BLM 201$ Risk Priority CSP Status File #ltiazid yr once oF— Historic Release? SPAR Workgroup Notes AOGCC Subsurface Salus g AOGCC Surface Status no data. Likely revegetaled. Removed from our list of wells of concern in < 50', no csg, no API#, October, 2012 Oumalik Foundation Test A US Navy I BLM None-uncased hc None None lUnknown Need HRR, PA. not in AOGCC database Monlht Meeting no data. Likely revegetated. Removed from our fist of wells of concern in < 50', no csg, no API#, October, 2012 Cumalik Foundalion Test b US Navy I BLM None-uncased hC None jNane Unknown Need HRR. PA, not in AOGCC database Monthly Meeting no data. Likely revegetated. Removed From our irsl of wells of Concern In < 50', no csg. no API#, October, 2012 Oumalik Foundation Test A US Navy I BLM None-uncased hc None lNone Unknown Need HRR. PA, not m AOGCC database Monthly Meeting no data. Likely revegetated. Removed from our list of wells of concern in < 50', no c5g. no APF#. Odubut. 2012 Oumalik Foundation Test A US Navy I BLM None-uncased ht Nune lNone Unknown Need HRR, PA, nal in AOGCC database Monthiv Meetin no data. Likely revegetaled. Removed from our Ilst of wells of con cam in < 501, no csg, no APi#. October, 2012 Oumatik Foundation Test 0 US NavyI BLM None-uncased hc None None Unknown Need HRR. PA, not in AOGCC database Moral Meeting no data. Likely revegetaled. Removed from our list of wells of concern in < 50', no csg. no API#, October, 2012 Ournalik Foundation Test 4US Navy I BLM None4xwased h_j None None Unknown I Need HRR. PA, not in AOGCC database Month Meetin Page 12 of 14 0 Page 13 of 14 SPAR Response with Legacy Wells LrsLxisx Well Name BLM 2013 Risk Operator f RP I Land Mgr Priority Historic CSP Status Fife #IHazld Rslease7 AOGCC subsurface Status �__ - -_-�� . A013CC Surface Status no dala. Likely SPAR 1Norkgroup Nates revegelaled. Removed from our list of wells of concern in < 50'. no csg, no AP IN, October, 2012 Oumalik Foundation Test US Na!q BLM None -encased h None None Unknown Need HRR. PA. not w AOGCC database MonthlyMeeiin no data. Likely revegelated. Removed from our list of wells of concern in < 501. no csg, no API#, October, 2012 Oumalik Foundalion rest U5 Na I BLM None -encased h None None Unknown Need HRR. PA, not in AOGCC database Monihl lAeeli no data. Likely revegetaled. Removed from aur fist of wells of concern in 0urn alik Foundation Test US Na 18 LM None -encased fi None None ilnknown Need HRR. PA, < 50', no csg. no API#, not in AOGCC database October, 2012 Month! Meetin no data. Likely revegetated. Removed from our list of wells of concern In < 50', no csg, no API#, October, 2012 Oumalik Foundat'Gon Test US Na I BLM None encased h Nome None Unknown Need HRR, PA, not m AOGCC database Month! Meeting property abandoned per then -applicable South Banow #7 US NEILM 2LI None None Unknown Need HRR. PA, ro erl lu ed re s no data to support proper Um -Qt 02 US N Noire Pendin Clo 335.30.001/3078 Yes, see file Plu d to surface abandonment no data to support proper Uncal #5 Ummt #9 Urrval A66 Umial #T Atiaaru Point#1 U5 US US Na I BL M US Na I BLM USGS/BLM None Pendin Hi h -PCB cleanu Active None Pendia None tPendi Mane Clo 3L5 313.00113079 335.38.00113093 Cao 335.3$.00113080 Clo 335 38 001I3091 None Yes, see file Yes, see file Yes, see file Yes. see lite No Plu ed E4 surface property plugged and abandoned pfupedy plugged and abandoned property plugged and abandoned Need HRR. PA,Plugged by properly plugged and BLM in 2009. abandoned abandonment suriaoe site remediated surface site remediated suriacx V le remediated surface site remediated Page 13 of 14 SPAR Response with Legacy Wells LrsLxlsx Page 14 of 14 0 vrcTon`ce o BLM 2813 Risk Historic AOGCC Subsurface AOGCC Surface Well Name Operator i RP 1 Land Mgr Priority CSP Status File #fFlaxid Releases SPAR Workgroup Notes Status Status Add to Site list. Need HRR, PA. SI with workplan and sampling. Chilling mud assessment. Surface Cleanup. Two large breaches on the south side of the berm allow water out of the reserve pit. Plugged properly plugged and surface site Drew Point #1 USGS 1 BLM None None None Yes by BLM in 2410. abandoned remedialed On Site list Need HRR, PA, 51 with workplan and sampling. [frilling mud assessment. Surface Cleanup. In 1976 the reserve pit berm failed and dolling muds/cutlings were released onlo the Poe of Teshekpuk Lake. Plugged by BLM in 2008. Solid waste from camp aril drilling operations buried on northern portion of pad. Erosion has exposed solid properly plugged and surface site East Teshek uk #1 US Navy 1 BLM None Active - waits 3Q0.38.11012652 Yes, see file waste. abandoned remediated Threatened by erosion. properly plugged and surface site J. W. Dalton $P USGS f BLM None None None No Plu ed b BLM in 20fl5. abandoned rernediated properly plugged and surface site South Barrow #8 USAF 1 BLM None None None Unknown Need HRR, PA, abandoned remediated properly plugged and surface sile South Bartow 911 US Na INorih Slope Bono None None None Unknown Need HRR, PA, abandoned remedialed properly plugged and surface site South Barrow 013 US Na lNerlh Slope Boro None None None Unknown Need HHR, PA, abandoned remedialed properly plugged and surface site South Barrow #15 US Na !North Sloe Boro None None None Unknown Need HRR, PA, abandoned remediated properly plugged and surface site South Barrow #19 US Na 1Nrarlh Sloe Baro None Nana None Unknown Need HRR. PA, abandoned remediated Properly plugged and surface site South Barrow 1x20 US Na Worth Slope Bora None None None Unknown Need HRR, PA, abandoned remedialed Need HRR, PA, dolling mud assessment, containment assessment, possible releases. Breaches allow wafer to flow into and aul of property plugged and surface site Watakpa #2 USGSI BLM None None lNone lyes I reserve and flare pits. labandoned irernediated Page 14 of 14 0 -YE ST,AaTEE July 11, 2013 GOVERNOR SEAN PARNELL Wayne Svejnoha Supervisory Minerals & Energy Specialist 222 W 7th Avenue, #13 Anchorage, Alaska 99513 Re: BLM Legacy Wells Dispute Dear Mr. Svejnoha: causer-Vca.LLon Division of Spill Prevention and Response Contaminated Sites Program 610 University Ave. Fairbanks, Alaska 99709-3643 Main: 907.451.2181 Fax: 907.451.2155 The Alaska Department of Environmental Conservation (ADEC) — Contaminated Sites has reviewed the National Petroleum Reserve in Alaska: 2013 Legacy Wells Summary Report dated February 2013, containing updated information on the status of the 136 Legacy Wells located in the National Petroleum Reserve — Alaska (NPR -A), and the draft National Petroleum Reserve in Alaska: 2013 Legacy Wells Strategic Plan dated May 2013. ADEC has also reviewed the response by the Alaska Oil and Gas Conservation Commission (AOGC). We concur with the response by AOGC and have no further comment regarding the priorities. We do have comments about the investigation and cleanup plans presented in the report. With this letter we are outlining regulatory requirements related to the environmental work that is proposed and required as part of these cleanups. ADEC is concerned that the 2013 Legacy Wells Strategic Plan prepared by the BLM does not include either assessment or the contingency for assessment of known, likely, or unknown but possible contaminant releases. In addition, BLM plans for surface cleanup of these wells should be made clear in the plan. At least one of these legacy wells has extensive PCB contamination and has resulted in a multi-year cleanup totaling tens of millions of dollars. At others, solid waste disposal practices have resulted in releases to the environment with estimated cleanup costs in the hundreds of millions. Known releases documented in the records we reviewed include crude oil, gasses, refined oil and fuel, drilling fluids that include various organics, metals, and other chemicals, and unknown contaminants from drums and other containers observed to be damaged and abandoned at the various well sites. There are 13 legacy well sites with known releases currently on the DEC contaminated sites list. Many of these are in the process of being addressed, cleaned up, and closed. From our limited records review there are 15 additional legacy well sites with confirmed releases. These should be prioritized for initial records reviews and then added to the BLM contaminated sites list under our cooperative agreement. Suspected releases include fuel releases from operations, storage, and fuel spills at the sites, impacts to various surface water bodies from spilled fluids during drilling and breaches of containment at reserve and flare pits, continued surface runoff from drilling fluids uncontained at several sites, and down -hole substances that were ejected from the holes over time or during blowouts or drilling operations. Wavne Svejnoha Jule 11, 2013 The BLM plan to address these known, suspected, and unknown releases at legacy well sites is notably absent from he documents presented to date. The three primarn- regulator\- agencies that need to be involved in the plan are ADEC — Contaminated Sites, Alaska Oil & Gas Conservation Commission, and ADEC — EH/Solid Waste. Other agencies will need to be consulted as well. Below we provide recommendations for a coordinated plan using the Uniform Federal Policy for Quality Assurance Project Plans (UFP-QAPP) that will involve all of the regulatory agencies in one coordinated manner. This will allow BLM to address these sites in a consistent and coordinated project which fulfills all of the regulatory requirements so that the sites do not need to be re -visited in the future when they are closed after this project. Attached are our comments on each specific well. The acronyms used on the list include terms that are typically used in a CERCLA type investigation however they are also suitable for investigations conducted under the State of Alaska cleanup rules. These include the following; Historical Records Review (HRR) This is recommended for almost all of the well sites. Much of the information required for these reviews is already contained in various reports and appendices or in BLM files. The Historical Records Review should document the type of releases that might have occurred from drilling operations as well as historical use of the site, and should capture all available information on the drilling fluids used and any product produced or released. Preliminary Assessment (PA) This is recommended for almost all of the well sites. A Preliminary Assessment is a limited scope investigation that provides an assessment of information about a site and its surrounding area to distinguish between sites that pose little or no threat to human health or the environment and sites that require further investigation. The PA is a CERCLA defined document and typically does not require sampling. Site Inspection (SI) If the PA recommends further investigation, then an SI is necessary. The SI is a CERCLA defined document, and it is analogous to an initial report of contamination under state cleanup rules. On some legacy well drillings sites it is evident now that an SI is required just from a review of the reports. An SI investigation typically includes the collection of samples to determine what contaminants are present at the site and whether they are being released into the environment. An approved site specific workplan is required under both CERCLA and 18 AAC 75 prior to SI sampling. The SI typically is not intended to develop a full site characterization, but is limited to determining the presence or absence of a release. If contamination is found after completion of the HRR, PA, and SI then a RI/FS under CERCLA, or a Site Characterization Report and cleanup plan under 18 AAC 75 is required. DEC recommends that BLM incorporate into the strategic plan the processes outlined in this letter. A team of agencies composed of AOGC, DEC -CS, EPA as required, and DEC -EH should address regulatory and technical requirements for these well closures. By cooperating and working together with the regulatory agencies BLM will save time and expense, and regulatory uncertainties will be avoided. The strategic plan should reference a project to prepare a generic workplan. DEC suggests that BLM utilize the generic UFP-QAPP workplan format for the required environmental work. If properly prepared, the workplan could encompass most of the investigations and cleanups required at these sites over multiple years. At other multi -site projects we have found this to be an effective way to reduce uncertainties and risk in these types of investigations. A very small site specific FSP could then be developed as BLM approaches each drilling site. Regulatory decisions made during workplan development would provide more certainty in the planning process for cleanups. (--\ePAD\re\FA,1-1 Ppei—1 AaP r;re\nni\BT.M\Proiects\LeeacvWells\71113 Letter to BLM on LegacyWells.docx Wayne Svejnoha July 11, 2013 Please review the attached list of specific sites. If you have any questions, please do not hesitate to call me at 907-451-2181 or by email at fred.vreeman@alaska.gov. I look forward to working 'with you as the Federal Government fulfills its requirement to clean up these well drilling sites in Alaska. Sincerely, _ Fred Vreeman Environmental Program Manager Enclosure: SPAR Response with Legacy Wells cc: Bud Cribley, State Director, Bureau of Land Management Steven Cohn, Deputy State Director for Resources, Bureau of Land Management Jolie Pollet, Branch Chief, Bureau of Land Management Robert Brumbaugh, Geologist, Bureau of Land Management Michael McCrum, Environmental Engineer, Bureau of Land Management Cathy Foerster, Commissioner, Alaska Oil and Gas Conservation Commission Larry Hartig, Commissioner, Alaska Department of Environmental Conservation Kristen Ryan, Director, ADEC Division of Spill Prevention and Response Steve Bainbridge, Program Manager, ADEC Contaminated Sites Program Jennifer Roberts, Program Manager, ADEC Contaminated Sites Program GASPAR\CS\Federal Facilities\Civilian Federal Agencies \DOI \BLM\Projects\Legacy Wells\7 1113 Letter to BLM on Legacy Wells.docx Well Name Simpson Core Test #5 Operator I RP I Land US Na I BLM Sim son Care Test #6 US Navy I BLM Simpson Core Test #7 Simpson Core Test #8 US Na US Na /BLM / BLM Simpson Core Test #9 US Na / BLM Simpson Core Test #10 US Na / BLM Simpson Core Test #11 1 US Na / BLM Simpson Core Test #12 US Na / BLM Simpson Core Test #16 US Na / BLM Simpson Core Test #17 US Navy / BLM Simpson Core Test #18 US Na / BLM Sim son Core Test #19 US Na / BLM Simpson Core Test #20 US Na / BLM Simpson Core Test #21 Simpson Core Test #22 US Navy US NRnLLBLM I BLM Sim son Core Test #23 US Navy/ BLM Simpson Core Test #24 US Na y / BLM Sim pson Core Test #25 US Na / BLM Ikpikpuk Core #1 US Navy / BLM I aka #t IUS Naw / BLM SPAR Response with Legacy Wells List.xlsx Low INone INone Low None None None- Uncased, d None None- Uncased, r None None- Uncased, r None None- Uncased, r None None- Uncased, r None None- Uncased, r None None- Uncased, i None None- Uncased, il None None-Uncased, r None None- Uncased, i None Low None None None None None None None None None Unknown Unknown Unknown Unknown Unknown Unknown Unknown Unknown Unknown Unknown Unknown Low INone None jNo Page 1 of 14 AOGCC Subsurface AOGCC Surface SPAR Workgroup Notes BLM 2013 Risk Status Need HRR, PA, Sl Historic Priority CSP Status File #/Hazid Release? Low None None Unknown Low None None Unknown Low None None Unknown Low None None Unknown Low None None Unknown Low None None Unknown Low INone INone Low None None None- Uncased, d None None- Uncased, r None None- Uncased, r None None- Uncased, r None None- Uncased, r None None- Uncased, r None None- Uncased, i None None- Uncased, il None None-Uncased, r None None- Uncased, i None Low None None None None None None None None None Unknown Unknown Unknown Unknown Unknown Unknown Unknown Unknown Unknown Unknown Unknown Low INone None jNo Page 1 of 14 AOGCC Subsurface AOGCC Surface SPAR Workgroup Notes Status Status Need HRR, PA, Sl no data no data Need HRR, PA, SI no data no data Need PA incl drill fluid assessment & workplan drilling fluids left in hole no data Need PA incl drill fluid assessment & workplan drilling fluids left in hole no data Need PA incl drill fluid assessment & work Ian drilling fluids left in hole no data Need PA incl drill fluid assessment & workplan drilling fluids left in hole no data well sketch provided by Need PA incl drill fluid BLM not consistent with assessment & workplan AOGCC or BLM data no data Need PA incl drill fluid assessment & workplan drilling fluids left in hole no data Need PA and SI incl drill fluid assessment, workplan incl sampling stressed debris, partially areas as blowout and fire revs etated site Need PA incl drill fluid assessment & workplan drilling fluids left in hole no data Need PA incl drill fluid assessment & workplan drilling fluids left in hole no data Need PA incl drill fluid assessment & work lan drilling fluids left in hole no data Need PA incl drill fluid assessment & workplan drilling fluids left in hole no data Need HRR, PA, SI no data no data Need PA incl drill fluid assessment &work Ian drilling fluids left in hole no data Need PA incl drill fluid assessment &work Ian drilling fluids left in hole no data Need PA incl drill fluid assessment & workIan drilling fluids left in hole no data Need PA incl drill fluid drilling fluids and ball assessment & workplan peen hammer left in hole no data overshot, drill collar, rock revegetated - BLM Need HRR, PA bit, and N -rods left in hole can't find it Review Report as PA. No evidence of sheen, stressed veg, or drilling waste on surface. Veg Not abandoned, nnnears healthv Plugged to surface site not cleared SPAR Response with Legacy Wells List xlsx Page 2 of 14 vi ence Q f BLM 2013 Risk Historic AOGCC Subsurface AOGCC Surface Well Name Operator/ RP / Land Mgr Priority CSP Status File #/Hazid Release?___ SPAR Workgr_ouup Notes Status Status plugging operations inadequate and Wellhead left as Umiat #3 US Nayy / BLM / FUDS None Dendina clos 335.38.001/3092 Yes, see file PluQ2ed by BLM in 2004 incomplete plugging operations historic site? inadequate and Wellhead left as Umiat #4 US Na / BLM / FUDS None pending clos 335.38.001/3079 Yes, see file Plugged by BLM in 2004 incomplete plugging operations historic site? inadequate and Wellhead left as Umiat #8 US Na / BLM / FUDS None endin clos 335.38-00113081 Yes, see file Plugged b BLM in 2004 incomplete plugging operations historic site? inadequate and Wellhead left as Umiat #10 US Na / BLM / FUDS None pendingclos 335.38.001/3082 Yes, see file Plu2ged by BLM in 2004 incomplete historic site? Need HRR, PA, SI with sampling. Drilling mud assessment. Surface Plugged to 7868'. Drilling Cleanup. Photos - evidence mud and diesel to Awuna #1 USGS / BLM Medium None None Yes of erosion into lake Need HRR, PA, SI with surface. > 100 P Ions sampling Drilling mud Wood, metal, ICleanup. assessment. Surface Plugged to 2039' Diesel plastic debris. East Sim son #1 USGS /BLM Low None None Yes Need HRR, PA, SI with Drilling mud assessment. Photos show areas of no to surface. Plugged to 2047'. Diesel >100 Pylons Wood and metal debris. Pylons. Tankage for ik ik uk #1 USGS / BLM Low None None Yes vecietation Need HRR, PA, SI with to surface. flammable fluids sampling. Drilling mud assessment. Surface Plugged to 1400'. Drilling Wood and metal Koluktak #1 USGS 1 BLM Low None None Yes Cleanup. Need HRR, PA, SI with mud & diesel to surface debris. Pylons sampling Drilling mud assessment Surface Plugged to 1894'. Diesel Wood and metal Ku rua #1 USGS / BLM Low None None Unknown Cleanup. Need HRR, PA, SI with to surface debris. Pylons sampling. Drilling mud assessment. Surface Plugged to 4464' Drilling Wood & metal Ku anak #1 USGS / BLM Low None None Yes Cleanup. Need HRR, PA, SI with mud & diesel to surface debris. Pylons sampling. Drilling mud assessment. Surface Lisburne #1 USGS / BLM Low None None Yes Cleanup. Photos show stained soil Need HRR, PA, SI with Plugged to 1840'. Diesel to surface Plastic and metal debris. _ sampling. Drilling mud assessment. Surface ICIPanuo Plugged to 8192'. Drilling Wood and metal North Iniaok #1 USGS/BLM Low None None Yes Imud & diesel to surface debris. Page 2 of 14 Well Name North Kalikpik #1 Peard #1 South Meade #1 Seabee #1 Tulaaeak #1 Page 3 of 14 SPAR Response with Legacy Wells List.xlsx _ BLM 2013 Risk Historic AOGCC Subsurface AOGCC Surface r Operator / RPI Land Mgr Priority CSP Status File #/Hazid Release? 4=� SPAR Workgroup Notes Status Status i. Need HRR, PA, SI with sampling. Drilling mud assessment Surface Cleanup Site photos show areas of stressed vegetation. No issues Plugged to 2232'. Diesel Wood and metal USGS / BLM Low None None Yes noted in USGS report to surface debris. P Ions Need HRR, PA, SI with sampling Drilling mud assessment Surface Plugged to 2026'. Diesel Wood and metal USGS / BLM Low None None Yes Cleanup to surface debris. P Ions Add to Site list Need HRR, ; PA, SI with sampling. Drilling mud assessment. Surface Cleanup Oil reported bubbling to the surface within reserve pit in 1982. Oily residue and sheen observed adjacent to east side of reserve pit, down hole material at the Plugged to 1875'. Diesel Wood and metal USGS / BLM Low None None Yes surface to surface debris. Pylons Add to Site list Need HRR, PA, SI with sampling. Drilling mud assessment. Surface Cleanup Reserve pit berm had breaches allowing water to exit Oil - stained sediment was observed above the Plugged to 1478' Diesel Wood and metal USGS / BLM Low None None Yes waterline of the it. __ to surface debris. Site photos may show hydrocarbon sheen on Plugged to 2600'. Drilling Wood and metal USGS / BLM Medium None None Yes water in well cellar mud & diesel to surface debris. Pylons Add to Site list. Need HRR, PA, SI with sampling Drilling mud assessment. Surface Cleanup. Berms have been breached an allow water to flow out of reserve pittflare pit. Rising bubbles of oil observed in flare pit 1984- Photos show Plugged to 1825' Diesel Metal debris. USGS / BLM Low None None IYes stressed vegetation 1to surface Pylons Page 3 of 14 Well Name West Dease #1 SPAR Response with Legacy Wells List.xlsx vi ence o BLM 2013 Risk Historic AOGCC Subsurface AOGCC Surface Operator / RP / Land Mgr Priority CSP Status File #/Hazid Release? SPAR Workgroup Roues Status t Status USGS / BLM 1Low done South Harrison Bay #1 JUSGS / BLM I Low INone West Fish Creek #1 IUSGS / BLM I Low INone East Simpson #2 USGS / BLM Low None None None None None None None Active None None None None None None None South Barrow #4 US Na /North Slope Borol USAF - BLM Unknown South Barrow #5 South Barrow #6 US Na /North Slope Boro South Barrow #9 US Na /North Slope Boro South Barrow #10 US Na /North Sloe Bora South Barrow #12 US Na /North Sloe Boro South Barrow #14 US Na /North Slope Boro South Barrow #16 1 US Na /North Slope BoroNone None None None Snuth Barrow #17 US Navy/North Slope Boro Page 4 of 14 Need HRR, PA, SI with sampling. Drilling mud assessment Surface Cleanup. Breaches in berm allow water to flow into and out of reserve pit, sheen on Plugged to 2700'. Diesel Wood and metal None Yes surface water in well cellar to surface debris Pylons Add to Site list. Need HRR, PA, SI with sampling. Drilling mud assessment. Surface Cleanup. Water flows into the pits through breaches on the eastern berm and out of the pits through breaches on the northern and western berms. Downhole material Plugged to 2289'. Drilling Wood and metal None es resent at surface mud & diesel to surface debris. Add to Site list. Need HRR, PA, SI with sampling. Drilling mud assessment. Surface Cleanup. Stressed vegetation noted and apparent in site photos. Plugged to 2443'. Drilling None Yes DrillinQ mud around well mud & diesel to surface Pylons Need HRR, PA, SI with sampling. Drilling mud assessment. Surface Cleanup. High TPH Plugged to 1977'. Drilling wellhead sticking concentrations underneath mud under plugs. Diesel up. Wood debris. 300.38.109/2651 Yes, see file the rig foundation to surface Pylons None Unknown Need Surface Status completed gas well no data None Unknown i Need Surface Status completed gas well no data None Unknown Need HRR, PA, Sl no data no data None Unknown Need HRR, PA, Sl no data no data None Unknown Need Surface Status com letedas well no data _ None Unknown Need HRR, PA, SI no data no data J BLM well sketch not consistent with AOGCC None Unknown Need HRR, PA, SI data no data Need PA incl drill fluid well left filled with drilling None Unknown assessment & workplan mud and diesel no data _ Need PA incl drill fluid tubing in well, no perfs, None Unknown assessment &work Ian unknown fluids no data Page 4 of 14 Well Name South Barrow #18 Walak a #1 Gubik #1 Gubik #2 Grandstand #1 W T Foran #1 " Halkeft #1 — Minga Velocity #1 Oumalik Core #1 Page 5 of 14 SPAR Response with Legacy Wells List xlsx - vi ence 6V--�- BLM 2013 Risk Historic AOGCC Subsurface AOGCC Surface Operator I RP I Land Mgr Priority CSP Status File #1Hazid Release? SPAR VAJorkgroup Notes Status gas Status US Na /North Slope Baro None None None Unknown Need Surface Status completed well no data USGS I Unknown None None None Unknown Need HRR, PA, SI no data no data csg @ 890' Multiple cement plugs of unknown volume. Shallowest US Na / Unknown Low None None 1 Unknown Need HRR, PA, SI 800' no data Add to Site list- Need HRR, PA, SI with sampling. csg @ 800'. Well blowout Drilling mud assessment. from zone at 1800' during Surface Cleanup- Photos plugging operations show disturbed/ stained Plugging never US Navy / Unknown Low None None es areas completed after blowout no data two downhole cement plugs of unknown depth US Na / Unknown None None None Unknown Need HRR, PA, SI and volume no data Add to Site list Need HRR, PA, SI with sampling. Drilling mud assessment. Surface Cleanup Sediment from the reserve pit was excavated and spread over the pad to drill a 2nd well at this location. Upon completion of the 2nd well, the sediment was pushed back into the , reserve pit,- Area does not appear to be revegetating, perhaps from the presence properly plugged but no of drilling mud at the data on abandonment USGS / Unknown Low None None Yes surfacE status no data On Site list Need HRR, PA, SI with sampling. Drilling mud assessment. Surface Cleanup Stressed vegetation, photos show plugged, but not open csg; metal & US Na /Unknown Low Active 300.38-108/2689 Yes, see file site underwater abandoned at surface ebris under t d water. US Na 1 BLM None ENone, None Unknown Need HRR, PA, SI csg @ 31'. 280' of drill o en cs pipe, drill collar, and core US Navy I BLM None -No observaNone Unknown Need HRR, PA, SI. barrel left in hole. reve etated Page 5 of 14 SPAR Response with Legacy Wells List.xlsx Page 6 of 14 BLM 2013 Risk Historic AOGCC Subsurface AOGCC Surface Well Name Operator/ RP I Land Mgr Priority CSP Status File #/Hazid Release? _ SPAR Workgroup Notes Status Status - Need HRR, PA, Workplan for SI with Sampling. Drilling Mud Assessment. Surface Cleanup. Photos show debris, stressed No csg. 15' of drill pipe oumalik Core #2 US Navy/ BLM Low None None Yes vegetation and rock bit left in hole, no data Need HRR, PA, Workplan for SI with Sampling. open csg & other Drilling Mud Assessment piping sticking out Surface Cleanup. Reports of ground; wood, of debris, drilling muds on metal, concrete Oumalik Core #11 US Na_ / BLM Low None None Yes surface cs to g debris open csg sticking out of ground; wood & metal oumalik Core #12 US Na / BLM Low None None No Need HRR, PA, SI no data debris buried by landslide, Need HRR, PA, SI. Well not no data on USN a /BLM Low None None Unknown apparent in site hotos csgto 30'; underwater status Sentinel Hill #1 Need HRR, PA, Sl. No evidence of sheen, open csg slightly stressed veg, or drilling above ground waste on surface. Veg 37' of csg, drilling fluids level; wood and Sim son Core Test #1 US Na / BLM Low None None -Noappears healthy Need HRR, PA, SI No left in hole metal debris evidence of sheen, stressed veg, or drilling waste on surface Veg 76' of csg, drilling fluids Simpson Care Test #2 US Na /BLM Low None None No appy health Need HRR, PA, St. No left in hole no data evidence of sheen, stressed veg, or drilling waste on surface. Veg 61' of csg, drilling fluids Simpson Core Test #3 US Na /BLM Low None None N07No a ears health Need HRR, PA, SI- No left in hole no data evidence of sheen, stressed veg, or drilling waste on surface. Veg —60' of csg, drilling fluids Simon Care Test #4 US Navy / BLM Low None None lth, Need HRR, PA, SI. No left in hole no data evidence of sheen, stressed veg, or drilling waste on surface. Veg csg cemented @25'; open csg sticking None one N° health drillin fluids left in hole out of round Sim son Core Test #13 US Na I BLM Low deed HRR, PA, SI. Ted Vegetated, no evidence of csg cemented @20'; open csg sticking None No release. drilling fluids left in hole out of ground Cimncnn r`.nre Test #14 US Naw / BLM Low None Page 6 of 14 SPAR Response with Legacy Wells List.xlsx Page 7 of 14 BLM 2013 Risk Historic AOGCC Subsurface AOGCC Surface Well Name Operator / RP / Land Mgr Priority CSP Status File #/Hazid Release? SPAR M/orkgroup motes Status Tg� r Status —s open casing Need HRR, PA, SI Vegetated, no evidence of csg set shallow, drilling sticking out of Simpson Core Test #14a US Na / BLM Low None None No release. fluids left in hole 2nund Need HRR, PA, SI open casing Vegetated, no evidence of csg cemented @18'; sticking out of Simpson Core Test #15 US Na / BLM Low None None No release drilling fluid left in hole ground . Need HRR, PA, Sl_ Site photos appear to show oil at surface, from a natural csg @ 350' Completed in oil seep; seep, also drilling mud in oil well. Open perfs At wellhead sticking sacks on the tundra. one time capable of up metal debris Sim on Core Test #26 US NavyI BLM Medium None None Yes Plu ed b BLM in 2004- unassisted flow. and rustin barrels Need HRR, PA, SI Site photos appear to show oil csg cemented at surface, from a natural @102';drilling fluids on oily ground; csg seep Plugged by BLM in including diesel and & wellhead stick Simpson Core Test #27 US Na / BLM None None None Unknown 2004. crude oil left in hole out of qround Need HRR, PA, Workplan for SI with Sampling. Drilling Mud Assessment_ open csg sticking Surface Cleanup Site out of ground in photos appear to show a wooden cellar; pile of drilling mud about csg @110'; drilling fluids wood & metal Sim son Core Test #28 US Nayy I BLM Low None None Yes 100 feet from the well left in hole debris. Solid waste Need HRR, PA, SL No evidence of sheen, stressed veg, or drilling waste on surface Veg csg cemented at 152'; open csg. Wood Simpson Core Test #29 US NavyBLM Low None None s healthy drillingfluids left in hole and metal debris RR, PA, SI Drilling 7Need surface, but well is the middle of a large in oil seep; open p and surrounded by csg sticking up; oil Plugged by BLM csg cemented at150'; wood & metal Sim on Core Test #30 US Navy/ BLM Low None None Yes, see notes in 2004. Need HRR, PA, Sl. Well is drillinq fluids left in hole debris _ on oily ground, csg in the middle of a large oil & wellhead stick seep and surrounded by csg cemented at 100'; out of ground, pooled oil Plugged by BLM drilling mud left in hole; wellhead leaking Simpson Core Test #30a US Navy/ BLM Low None None Yes. see notes in 2004 as blowout at 423' gas Need HRR, PA, SI. Leaky valve replaced in 2001, little evidence of contamination following valve on oily ground; csg replacement Plugged by csg cemented at 100% & wellhead stick , 01 %A ti,,,,a None None Yes, see notes BLM in 2004, drilling fluids left in hole joutof round Page 7 of 14 Well Name Fish Creek #1 Wolf Creek #1 Wolf Creek #2 Creek #3 Core Al SPAR Response with Legacy Wells List.xlsx muds Evidence of BLM 2013 Risk Historic Need HRR, PA, Workplan AOGCC Subsurface AOGCC Surface Operator! RP / Land Mgr Priority CSP Status File #/Hazid Release? -�— SPAR Workgroup Notes Status - - Status Need HRR, PA, Workplan csg cemented at Wellhead sticking for SI with Sampling 1028';cement plugs at above ground, Drilling Mud Assessment 6387' and 5520'; fish in wood, metal, and Surface Cleanup. Drilling hole; drilling fluids left in No data. Open US Navy1 BLM Medium None None Yes near wellhead hole casing #1 fakal US Na / BLM Low None None yes-- --- 1 Page 8 of 14 Need HRR, PA, Workplan for SI with Sampling csg sticking out of Drilling Mud Assessment. Surface Cleanup. Also Wellhead sticking evidence of a natural seep- above ground, Tar sheens in the summer ST from 2552 to 3018 wood, metal, and months BLM is concerned csg @2915. Slotted liner concrete debris. US Navy1 BLM Medium None None Yes about exposure to wildlife to TD. Completed oil well Rustin barrels Need HRR, PA, Workplan drums are floating on a building; pylons; for SI with Sampling. casing cemented at 48'; Lcsgmented at 1000';wood & metal US Naw / BLM Low None None Drilling Mud Assessment. gas flow and explosion fluids left in hole debris Surface Cleanup. Small gas while drilling at 863'; hole leak in wellhead flange, will filled with fresh water to US Navy/ BLM Low None None No flow if the valve iso en 330' csg cemented at 53';hole No data. left filled with fresh water; US Na / BLM Low None None No Need HRR. PA, SI. fish in hole csg cemented at 107; No data bridge plugs from 1447 to 1735' and from 554 to US Na / BLM Low None 1 None No Need HRR, PA, SI 661' No data Page 8 of 14 Add to Site list. Need HRR, PA, SI with sampling csg sticking out of Drilling mud assessment. ground with wood Surface Cleanup Sheen on plug on top; solid surface water in well cellar, csg cemented at 30'; drill waste; wood hundreds of drums indicate pipe, drilling mud and debris; about 200 US Nayy/ BLM Hi h None None Yes potential for contamination Need HRR, PA, SI Two diesel left in hole rusting barrels - open csg; wood drums are floating on a building; pylons; pond near the well. Lcsgmented at 1000';wood & metal US Naw / BLM Low None None No Potential for burned landfil fluids left in hole debris Page 8 of 14 SPAR Response with Legacy Wells List.xlsx Page 9 of 14 Mcence of— BLM 2013 Risk Historic AOGCC Subsurface AOGCC Surface Priori CSP Status File #/Hazid Well Name Operator / RP I Land Mgr Priority Release? ��SPAR Workgroup Notes — — -� Status T =z_ Status — Add to Site list Need HRR, PA, SI with sampling. Drilling mud assessment. open flange @ Surface Cleanup. Drilling Gas well. Open perfs ground level. Mud pile overgrown with Drilling fluids and Metal & wood US Na /BLM Low None None No vegetation and lichen tubulars left in hole debris Meade #1 Need HRR, PA, SI. No evidence of sheen, open casing stressed veg, or drilling csg cemented at 502'; sticking out of waste on surface Veg plug at 3470 to 3511'; ground. Wood Titaluk #1 US Navy/ BLM Low None None No a ears health drn fluids left in hole debris Open casing below Add to Site list. Need HRR, ground level. PA, SI with sampling. Revegetated. Drilling mud assessment. Numerous metal Surface Cleanup. Debris csg partially cemented at support structures and drilling muds. Stressed 2762'. Plug at 2543'. sticking up. Low None None Yes ve etation Drilling mud left in hole Concrete debris. pumalik #1 US Na I BLM plate welded to pipe, 1' of pipe csg cemented at 1100'. sticking up. None None No Need HRR, PA, SI. Drillin fluids left in hole Wooden debris East C}umalik #1 US Na !BLM Low Add to Site list Need HRR, PA, SI with sampling. Drilling mud assessment. Surface Cleanup open csg broken Downhole material present csg cemented at 6073'; off and sticking up, at surface, area mostly original hole drilled to wood, metal, revegetated Diesel still 7154' & junk left; concrete and other occupies the ground sidetrack hole left with debris rusting To a utak #1 US Navy/BLM High None None Yes circulation lines drilling fluids barrel Add to Site list. Need HRR, PA, SI with sampling. Drilling mud assessment. Surface Cleanup Pile of csg to 1100'; plug at open casing drilling muds is next to the 1049'; drilling mud below slicking up. Wood, celler No offical reserve pit plug; unknown fluids in metal, and glass East Ta a aruk #_ 1 US Navy/BLM Low None None No noted o en hole debris - open casing Need HRR, PA, SI BLM sticking up. Wood. states that there was no metal, and glass None No debris at this site in 2012. cs cemented at 420'; debris. - It..:fakl3ria NF1 US Naw / BLM Low - None Page 9 of 14 Well Name Knifeblade North Sir Umiat #1 SPAR Response with Legacy Wells List.xlsx BLM 2013 Risk perator / RP 1 Land Mgr Priority N CSP Status File #/Hazid Historic Release? - AOGCC Subsurface SPAR Workgroup Notes Status - s"- ---- - AOGCC Surface Status V open casing sticking up. Wood, metal, & concrete debris. rusting Need HRR, PA, SI Reports indicate solid waste csg cemented to 45';fish barrels. One marked flammable S Na / BLM Low None None No (drums) in hole hazard. open casing sticking up; metal & S Na / BLM Low None None No Need HRR, PA, SI Need HRR, PA, SI csg cemented at 38'; concrete debris No including leaching assessment. Site partially submerged intermittently durin the summer csg cemented at 80'; drillin fluids left in hole No wellhead Metal. Solid waste ? No data Test Well # US Na I BLM Low None one crude wellhead - Need HRR, PA, Sl Surface csg cemented at 685'; Wood and metal US Na / BLM / FUDS Medium Cleanu co 335.38.001/3090 :Ye:s,see file Cleanu drillin fluids left in hole debris No wellhead - Gravel pad partially csg cemented at 486'; revegetated wood Need HRR, PA, SI. Surface cement plug from 440 to debris and pipe 480': _ stickingup Umiat #11 US Na / BLM 1 FUDS Low pending clos 335.38.001/3083 Yes, see file Cleanup csg cemented at 7206'; Wellhead. Gravel various plugs from 8250' pad revegetated South Sim son #1 US Na I BLM Law None None Yes Need HRR, PA, SI. to surface No data Add to Site list. Need HRR, PA, SI with sampling. Drilling mud assessment. Surface Cleanup. Large quantities of ferrous oxide, zinc oxide, zinc carbonate, and barium sulfate were added to drilling muds. Stains apparent in photos- BLM field camp on site. Walls between the reserve and flare pits have eroded. Wellhead and Water flows into surface gravel pad. ? No W., k USGS / BLM Low None None Yes water durin breaku no data data Page 10 of 14 Well Name SPAR Response with Legacy Wells List.xlsx Y csg cemented at sampling. Drilling mud mud assessment. Surface evidence of open pipe; metal & Cleanup. Drilling Muds on water _ BLM 2013 Risk Historic Not abandoned, AOGCC Subsurface AOGCC Surface 1 RP I Land Mgr Priority CSP Status File #/Hazid Release... u SPAR I�lorkroPNotes g Status Status wood, metal & Need HRR, PA, SI Surface tubin Com leted well concrete debris Need HRR, PA, SI with Cleanup Photo CIMG0218 csg cemented at 53'; sampling and workplan. shows area of disturbed tubing hung to 708'; hole open casing vegetation that should be left filled with drilling mud sticking up; wood mud at surface, Sheen on i--ti-ted during SI and diesel metal debris j Arcon Barrow Core #1 US Na / BLM Low None None es 9 - open casing Need HRR, PA, SI Surface csg cemented at 616'; sticking up; wood & Avak 91 US Nayy / BLM Low None None No Cleanu plug set at 1348' metal debris Not abandoned Barrow Biq Rm #1 site not cleared, Need HRR, PA, SI. Surface open casing ?? No US Na / BLM None -debris la None None Unknown Cleanup _ no data data Not abandoned. site not cleared, Need HRR, PA, SI Surface open casing ?? No Barrow Core Rig Test #1 JUS Na / BLM None-uncased h None None Unknown Cleanup no data data _ N d HRR PA SI with ee , csg cemented at sampling. Drilling mud mud assessment. Surface assessment Surface open pipe; metal & Cleanup. Drilling Muds on water _ site -slowly revegetating. Not abandoned, More information on drilling site not cleared, mud specifics is being open casing ?? No researched no data data Barrow Core Rig Test #2 US Na / BLM Low None None Need HRR PA SI with Iko Bav #1 sampling Drilling mud wellhead leaking assessment. Surface cemented csg to gas!! Wood & Cleanup. Cellar does not 1270';slotted liner to metal debris. Area US Navy / BLM - High None None Yes -Re ort note retain water 1950'; tb to 1939 affected 50'x50' South Barrow Test Wetl #1 US South Barrow Test Well #2 US c-66 /Noll Need HRR, PA, SI Drilling csg cemented at mud assessment. Surface 441';hole left willed with open pipe; metal & /North Slo a Boro Low None None unknown Cleanup On road s stem water _ concrete debris _ Need HRR, PA, SI. Drilling csg cemented at 2260'; mud assessment Surface perforated liner to TD; wood, metal & /North Slope Borol Low None None unknown Cleanup. On roads stem tubin Com leted well concrete debris Need HRR, PA, SI with sampling and workplan. Drilling mud assessment. Surface Cleanup. Drilling csg cemented at 1046'; open csg sticking mud at surface, Sheen on hole left filled with drilling up; wood & metal r/Nnrth Slooe Bora Medium None None Yes surface water in well cellar fluids and water Idebris Page 11 of 14 Well Name SPAR Response with Legacy Wells List xlsx BLM 2013 Risk lHistoric I RP I Land Mgr I Priority I CSP Status I File #/Hazid Release? aumalik Foundation Test US Na / BLM r -----a�— - no data. Likely Uumafik Foundation Test A US Na / BLM Removed from our Oumalik Foundation Test A US Na / BLM concern in Oumalik Foundation Test jq US Navy I BLN Test ;MUS Navy / BLM nknown None INone (Unknown None None None (None Page 12 of 14 AOGCC Subsurface AOGCC Surface r SPAR Workgroup Notes Status ]Status r -----a�— - no data. Likely revegetated. Removed from our list of wells of concern in < 50', no csg, no AP I#, October, 2012 Need HRR, PA, not in AOGCC database Mnnthly Meeting no data. Likely revegetated Removed from our list of wells of concern in < 50', no csg, no API#, October, 2012 Need HRR, PA, not in AOGCC database Monthly Meeting no data. Likely revegetated. Removed from our list of wells of concern in < 50', no csg, no API#, October, 2012 Need HRR, PA, not in AOGCC database Monthl Meelin no data. Likely revegetated. Removed from our list of wells of concern in < 50', no csg, no API#, October, 2012 Need HRR, PA, not in AOGCC database Monthly Meeting no data. Likely revegetated. Removed from our list of wells of concernin < 50', no csg, no API#, October, 2012 Need HRR, PA, not in AOGCC database Monthly Meeting_ no data Likely revegetated. Removed from our list of wells of concern in < 50', no csg, no AP I#, October, 2012 Need HRR, PA, not in AOGCC database Monthly Meetin Page 13 of 14 SPAR Response with Legacy Wells List xlsx T vi enceot Historic AOGCC Subsurface AOGCC Surface Operator 1 RP I Land BLM 2013 Risk Mgr Priority CSP Status File #IHazid Release? SPAR Workgroup motes States > _ - Status Well Name no data. Likely revegetated. Removed from our list of wells of concern in < 50', no csg, no AP I#, October, 2012 Oumalik Foundation Test US Navy/BLM None-uncased h None None Unknown Need HRR, PA, - not in AOGCC database Months Meeting no data. Likely revegetated. Removed from our ' list of wells of concern in < 50', no csg, no AP I#, October, 2012 Oumalik Foundation Test A US Navy/ BLM None-uncased hc None None Unknown Need HRR, PA, not in AOGCC database Mo data. Likely revegetated. Removed from Our list of wells of concern in < 50', no csg, no API#, October, 2012 Oumalik Foundation Test US Na I BLM None-uncased h None None Unknown Need HRR, PA, not in AOGCC database Monthly Meeting no data. Likely revegetated. Removed from our 7,5101', list of wells of concern in g. no API#, October, 2012 Oumalik Foundation Test 0 US Na / BLM None-uncased hc None None Unknown Need HRR, PA, not in AOGCC database �Moonntehlly Meeting abandoned per then-applicable South Barrow _#7 US Na y / BLM None None None Unknown Need HRR, PA, properly plugged res _ no data to support proper Na / BLM None Pending Clo 335.38.001/3078 Yes, see file Plu qed to surface abandonment data to support Umiat #2 US no proper Umiat #5 US Na / BLM None PendingClo 335.38.001/3078 Yes, see file Plu ed to surface properly plugged and abandonment surface site Umiat #9 US Na VIBLM Hi h-PCB cleanu Active 335.38.001/3093 Yes, see file abandoned properly plugged and remediated surface site Umiat #6 US Na / BLM None Pending Clo 335.38-061/3080 Yes, see file -- abandoned properly plugged and remediated surface site Umiat #7 US Na / BLM None PendingClo 335-38.00113091 Yes, see file abandoned Need HRR, PA, Plugged by properly plugged and remediated surface site None None No BLM in 2009- abandoned remediated Atinant Pnint #1 USGS / BLM None Page 13 of 14 SPAR Response with Legacy Wells List.xlsx Well Name Operator / RP / Land Mgr BLM 2013 Risk Priority CSP Status I Drew Point #1 USGS / BLM US Navy / BLM USGS / BLM None None None None None None None None None lNone None i Active - waiti None None None None None None None None East Teshek uk #1 J. W. Dalton #1 South Barrow #8 USAF I BLM US NavyMorth Sloe Boro US Na /North Sloe Boro South Barrow #11 South Barrow #13 South Barrow #15 US Na /North Sloe Boro US Na /North Sloe Boro US Na /North Sloe Boro South Barrow #19 South Barrow #20 Walakpa #2 USGS/ BLM Page 14 of 14 rvl1WE cii-ofT_ Historic AOGCC Subsurface AOGCC Surface ile #/Hazid Release? SPAR Workgroup Notes Status Status Add to Site list. Need HRR, PA, SI with workplan and sampling. Drilling mud assessment. Surface Cleanup. Two large breaches on the south side of the berm allow water out of the reserve pit. Plugged properly plugged and surface site Jone Yes bv BLM in 2010, abandoned remediated On Site list. Need HRR, PA, SI with workplan and sampling. Drilling mud assessment. Surface Cleanup. In 1976 the reserve pit berm failed and drilling muds/cuttings were released onto the ice of TeshekpukLake. Plugged by BLM in 2008. Solid waste from camp and drilling operations buried on northern portion of pad. Erosion has exposed solid properly plugged and surface site 300.38.110/2652 Yes, see file waste. abandoned remediated _ Threatened by erosion. properly plugged and surface site Vone No Plugged b BLM in 2005. abandoned remediated properly plugged and surface site Vone Unknown Need HRR, PA, abandoned remediated properly plugged and surface site Vone Unknown Need HRR, PA, abandoned remediated _ properly plugged and surface site Vone Unknown Need HRR, PA, abandoned remediated properly plugged and surface site Vone Unknown Need HRR, PA, abandoned remediated _ properly plugged and surface site None Unknown Need HRR, PA, abandoned remediated properly plugged and surface site None Unknown Need HRR, PA, abandoned remediated Need HRR, PA, drilling mud assessment, containment assessment, possible releases. Breaches allow water to flow into and out of Iproperly plugged and surface site None Yes reserve and flareits. abandoned remediated Page 14 of 14 10 EXPLORAT10NT OF NAVAL PETROLEUM RESERVE NO. 4, ALASKA, 1944-53 contact of the Oumalik formation appears to be grada- The siltstone and sandstone range from medium tional into the overlying Topagoruk formation, al- light gray to medium olive gray. The medium -olive - though an angular unconformity between these forma- gray material is made up almost entirely of colorless tions can be demonstrated in other areas. The con- and transparent or clear brownish angular to sub- t.act in this well was placed below the silty section of glassy ua t itictsheenis ,inithehandnd tspl crimen,has aand is the. Topagoruk formation, beneath the lowest occur- Y q rell(T of the fauna of the Nanushuk group, and at the very slightly calcars°out to no,L; were o s. No pyrite, first occurrence of I orothia cha•ndlcrensis Tappan, an glauconitc, or ro1.tnrled grains �s ere obser� ed in the index microfossil of the Oumalil. formation. Shale of sandstone and s'.ltstone. the Oumalik formation is darker than shale of the Very rare pebbles and granules of dark chert and Topagoruk formation. The sandstones are also slightly quartz are present. Large chips of pyrite were found rl darker because they contain less white and clear quartz in the ,_itch; and nodules in the bottom -hole core. in proportion to the other minerals and matrix. The Rocks older t han the Upper Jurassic(?) are not known sand grains are more angular than those of the detect ahigh-velocity b Geophysicalumalik area. break which might be indicative Topagoruk. of limestone of Paleozoic age. Interpolation from UPPER ZURASSIC(P) AND LOWEL CRETACEOUS(P) areas to the west suggests that the depth to "base - ROCKS ment" (Paleozoic?) rocks of the type found near Barrow may be about 20,000 feet. The most pronounced lithologic break in Oumalik ta.Gt well 1 is between the Oumalik formation and the underlying rocks, and it may represent an un - conformity. The age of the 992 feet of beds im- mediately below this break in Oumalik test well 1 is doubtful. Lithologically, the section is the same throughout, and the bottom of the unit was not reached. The beds may be a part of the Okpikruak formation of Early Cretaceous age; they may be Late Jurassic n age; or they may be gradational from Upper Jurato Lower Cretaceous. The various possibilities are discussed from a paleontological point of view by Harlan R. Bergquist on pages 65-68. Lithologically, this section of doubtful age does not closely resemble the Okpikruak formation of the outcrop 90 miles to the south, but it has gome of the peculiarities of the Upper Jurassic section in Topagoruk test well 1, which is 55 miles north. Perhaps the upper few hundred feet of rocks, containing Aucella subla.el- s Neyserling, ,can be correlated with the Okpikruak formation, but the relation of these upper beds to the Okpikruak forma- tion found in the outcrop is dubious. These Upper Jurassic(?) and Lower Cretaceous(?) rocks are made up of clay shale interbedded with as much as 10 percent siltstone an every blanks is mne oder- ately 'The clay shale is dark gray to grayish ately hard, and has plates of mica, larger than those in the formations above, scattered abundantly through- out. Very rare to common well-rounded, slightly frosted clear quartz gr&urs up to very coarse size are ,embedded, individually or as streaks, in shale. Also .present in the shale are soft pellets, very fine to medium .grained, of pale -green clay or glauconite (?). Some of the rounded quartz grains are surrounded by crystalline -pyrite. CORE TESTS DESCRIPTION OF CORES AND CUTTINGS The following lithologic descriptions, with the exception of Oumalik core (foundation) tests 1-10, were made by the author. The brief -descriptions of the foundation tests were made by the driller or geolo- gist at the time the holes were drilled. All material was described dry; colors were determined by compari- son to the Rock Color Chart (Goddard and others, 1948). The term "trace" as used here is defined as less than 3 percent and in most cases less than 1 per- cent. Clay ironstone is a sideritic, dense, and rather hard mudstone that generally effervesces very slowly in cold dilute hydrochloric acid. Abundance of microfossil specimens mentioned at the beginning of each core description in Oumalik core tests 11 and 12 and in the test wells is defined as follows: 1-4 very rare, 5-11 rare, 12-25 common, 26-50 abundant, and over 50 very abundant. The latitudes and longitudes of these core tests are based on preliminary surveys and are subject to correc- tion. All elevations in the area, including those used on seismic lines, were taken from a base elevation established at an airstrip by numerous aircraft altimeter readings. 1gpIHYIIS: CORE TEST 1 Location: Lat 69049'36" N., long 155041'57 Elevation: Ground, 170 feet; kelly bushing, 180 feet. Spudded: July 9, 1947. Completed: July 17, 1947, junked and abandoned. Total depth: 179 feet. Xkpikpuk core test 1 was located near the camp- site occupied by United Geophysical Co.'s seismo- • CORE TESTS AND TEST WELLS, OUMALIK AREA, ALASKA graph party 46. Seismic evidence indicates that the hale was located off the crest on the north flank of the Oumalik anticline (sec fig. 5), as contoured on shallow sandstone strata of Cretaceous age. The top of the Cretaceous section in this hole is approximately 400 feet stratigraphically higher than the uppermost Cretaceous penetrated in drilling East Oumalik test well 1. (See P. 8•) No samples were received for the upper 39 feet of the )iole. The first sample, at 39 feet, is Cretaceous, with surface contamination suggesting that the Pleisto- cene and (or) Recent mantle is 30 feet thick or less. The bole from 39 feet to total depth is in both the Lower and Upper Cretaceous, probably in the nonmarine Chandler formation of the Nanushuk group. (See pl. 3.) The hole was abandoned when the N—rods twisted off at 90 feet. The samples from this test are very poor. The cuttings consist almost entirely of contaminating ma- terial from the surface and are not necessarily indicative of the formations penetrated. The cores are also poor and badly infiltrated by drilling mud. All depths are measured from the kelly bushing. Core Lithologic description [W here no core number is given, description is from cuttings) Description 0-10 Kelly bushing to ground level. 10-39 No samples received. 39-98 Sand, light -olive -gran unconsolidated, medium - to coarse-grained; grains round to subround and made up of 80 percent clear, yellow, and white quartz, 20 percent dark -gray and black chert. A few shiny black coal chips at 84-94 ft. Clay (drilling mud) loosely cements some of the grains; white pelecypod shell fragments and ostracodes present. Trace of light -gray very calcareous cement throughout. 98-108 Recovered 4ft: Clay shale, medium -light- to medium -gray, fissile, soft; rare dark -gray carbonaceous noncalcareous clay shale. This part of core badly broken by drill and infiltrated by drilling mud. Well-rounded black and yellow chert granules and pebbles found in mud in middle of, recovered section are probably surface contamination. Dip of beds indeterminate. .108-149 Sand and drilling mud as above. Larger pro- portion of subangular grains with increasing depth. Also a gradual increase in proportion of white and clear quartz to yellow quartz. No sandstone chips recovered. 149-159 Recovered 6 ft: 1 ft 8 in., sand, unconsolidated. This sand is ground -up medium -grained sandstone of Cretaceous age (subangular white and clear quartz and carbonaceous particles) Core, Depth (le e t) 159-178 • 11 Lithologic description—Continued :Description and a liberal amount of surface material (subround yellow and clear quartz grains, a few rounded chert granules), chips of clay shale, and black low-grade coal, all loosely embedded in drilling mud. Some calcareous material in mud probably is ground -up cement. 3 ft 6 in., siltstone, medium -light -gray, hard, with irregular fracture; grains mostly white and clear quartz and minute particles of carbonaceous material; beds approximately flat lying, some small-scale crossbedding. Sand and drilling mud. Sand grains are very fine to fine, made up of 85 percent white and clear quartz; remainder is yellow quartz, gray and black chert, dark -colored rock frag- ments and black carbonaceous material. This sand is a mixture of surface material and ground -up sandstone of Cretaceous age. OUMALlH CORE TEST 1 Location: Lat 69°49'45" N., long 155°41'30" W. Elevation: Ground, 245 feet; kelly bushing, 255 feet. Spudded: July 21, 1947. Completed: July 29, 1947, junked and abandoned. Total depth: 392 feet. oumalik core test 1 is located approximately one- quarter of a mile northeast of Ikpikpuk core test I. (See fig. 4.) Although they are relatively close to- gether, Oumalik core test 1 probably started as much m 100 feet higher in the section because of its higher ele- vation and position farther downdip on the flank of the anticline. Correlation between the two holes is diffi- cult, owing to poor samples. Samples were not obtained from the upper 30 feet of the hole. The sample from 30 -foot depth is Cre- taceous in age. Contamination in this and lower sam- ples indicates that overlying Pleistocene and (or) Recent sediments are the same as those in Ikpikpuk core test 1; that is, rounded fine to coarse sand, rounded granules of yellow and black chert, and soft light -olive -gray to dusky -yellow clay, The Lower and Tapper Cretaceous rocks, probably of the Chandler formation, drilled in the rest of the hole are mostly clay shale with a few beds of sandstone and siltstone. The hole was abandoned when the drillers were unable to recover a core barrel stuck at 88 feet. The cuttings from this test are very poor. About 95 percent of the samples represents contaminating cement, drilling mud, and near -surface Pleistocene or Recent sand and is not necessarily indicative of tho formations penetrated. All depths are measured from the kelly bushing. 12 Core EXPLORATION OF NAVAL PETROLEUM RESERVE NO. 4, ALASKA, 1944-53 Lithologic description (where no core number is given, description is from cuttings] 0-10 :10-30 30-102 102-112 112-152 152-162 __._ 162-170 -__ 170-180 -_-_ 180-199 3 1199-209 Description Kelly bushing to ground level. No samples received. Silt and clay (or drilling mild), light -olive -gray; some sand with rounded varicolored grains. As much as 90 percent white cement contam- ination. Recovered 3 ft 6 in.: Clay, light -olive -gray to dusky -yellow, soft; contains relatively modern appearing tun- dra plant fragments; moderately calcare- ous, without visible bedding; streaks of yellowish clay which effervesce with HCl are probably sideritic. Cement contamination as much as 90 percent, also clay, silt, and sand in every sample. About 30 percent of sand made up of sub- angular Cretaceous sand grains, but horizon from which they came cannot be determined. Recovered 7 ft: 2 ft 9 in., sandstone, light -gray, hard, argil- laceous, moderately calcareous. Dip 10°-15°. 9 in., clay shale, medium -gray, soft, sandy. 1 ft 3 in., siltstone, yellowish -gray, medium - hard, slightly sandy. 2 ft, clay shale, yellowish -gray, soft to medium -hard. 3 in., claystone, yellowish -gray, medium - hard, nonealeareous. Cement contamination 50 percent, near -surface sand 20 percent. Clay shale, medium -light - gray. Sandstone, light -gray, medium - grained; grains are subangular and made up of 75 percent white and clear quartz; re- mainder is dark rock fragments, chert and coal; calcareous. Clay ironstone present, moderate yellowish brown. Cement 30 percent, near -surface sand 30 per- cent, also sandstone, clay shale, clay iron- stone. Some clay shale is medium dark gray. Cement contamination 85 percent. Clay shale, medium -light -gray. Surface sand, fine- to coarse-grained, and granules of yellow and black chert. Recovered 1 ft 6 in.: Clay shale, medium -light -gray to grayish - black; recovery consists almost entirely of broken chips. Upper 6 in. made up of drilling mud with chips of shale embedded, also some sand grains. Some of the shale is very dark and carbonaceous. Rare fragments of shiny black coal. A few specks of amber found in the carbonaceous beds. Lowest 2 in. of recovery consists of very light -gray sandy siltstone, that con- tains rare carbonaceous particles. The "siltstone" may possibly be cement con- tamination. Clay shale is noncalcareous. Parts of drilling mud very calcareous. Lithologic description—Continued Core Dept)h Description (feet 4 209-219 Recovered 1 it 6 in.: 1 ft, drilling mud, contain clay shale, sand, pebbles; 6 in., claystone, medium -lig hard, irregular fracture, co dark -gray plant fragmen yellow piece of amber in t 219-252• Clay lumps (mostly drilling n 252-262 262-300 6 i 300-310 310-320 320-330 330-340 ____ 340-350 ____ 350-360 -___ 360-370 _ 370-383 7 383-392 s small chips of calcareous. ht -gray, medium- ntains numerous ts, also a clear he claystone. iud) mixed with sand. Sand, unconsolidated, light -olive - gray, medium -grained; grains subrounded to rounded, made up of 90 percent clear and some white quartz with a yellowish cast, also black chert, and a few rock particles. This sand is mostly near -surface contamination. Recovered 8 ft: Siltstone, light- to medium -light -gray, hard, noncalcareous; has irregular fracture, very argillaceous and grades into silty claystone. Silt made up of 90 percent white and clear quartz; remainder is carbonaceous and micaceous particles; dip 10° (?); a few steeper dips probably represent cross - bedding. Clay lumps mixed with sand as at 220-250 ft, some cement contamination. Dull black coaly particles at 290-300 ft. Recovered 8 ft: 2 ft, siltstone, light -gray, hard, moderately calcareous. 6 ft, interbedded siltstone, clay shale, and coal, soft to medium -hard, dark -greenish - gray to medium -gray. Entire core badly fractured; carbonaceous material in the shale. Sand and clay. Clay shale 60 percent, medium -gray and small amount of dark -gray; remainder is sand. Sand 50 percent., medium -light -gray clay shale 50 percent. Sand; trace of clay shale, medium -light -gray and dark -gray. Sand with trace of dark -gray clay shale. Sand with trace of medium -light -gray clay shale. Sand, clay shale, clay ironstone, cement. No recovery. Lost tool in hole. OUWAX K CORE TEST S Location: Lat 69°50118" N., long 155159'24" W. Elevation: Ground, 178 feet; kelly bushing not known. Spudded: Sept. 8, 1947. Completed: Sept. 10, 1947, junked and abandoned. Total depth: 190 feet. The drill site for Oumalik core test 2 is on the apex of the anticline approximately 6 males west of Ikpikpuk core test 1 and just 26 feet northwest of Oumalak test well 1. (See fig. 6.) This hale was drilled with geo- 17-A GEOLOGICAL SUR\Ey A. OUMALIK CORE TEST 1 Adjoining rasing rack piling and barrel. mark the site chosen for Oumalik test well 1. C. OUMALIK TEST WELL 1 View of derrick floor; drawworks right background. Taken Feb. 7, 1950, when hole was at 11,007 feet. PROFESSIONAL PAPER 305 PLATE I B. OUMALIK TEST WELL 1 General view of derrick and righouse showing protective covering on rig. This cover is necessary for drilling under Arctic conditions. Taken on Feb. 7, 1950. DRILLING RIGS, OUMALIK CORE TEST 1 AND OUMALIK TEST WELL I