Department of Commerce, Community, and Economic Development
Alaska Oil and Gas Conservation
Commission
HOME
EVENTS
DATA
Data List
Drilling
Production
Orders
Data Miner
Document Search
REPORTS
Reports and Charts
Pool Statistics
FORMS
LINKS
Links
Test Notification
Data Requests
Regulations
Industry Guidance Bulletins
How to Apply
ABOUT US
History
Staff
HELP
Loading...
The URL can be used to link to this page
Your browser does not support the video tag.
Home
My WebLink
About
100-050
Closure Report 1.s Phillips Petroleum l'Company Alaska Inactive Reserve Pit NMU T#r' i i [it "IM North Americai d i (a'1. * i 'i,- Prepared by HILL 301 West Northern Lights Blvd. Suite 601 Anchorage, Alaska 99503 Contents Section Page 1 Declaration .............................................. 1-1 2 Summary ................................................ 2-1 3 Closure Study Approach .................................... 3-1 ANC10011DED.WP5 111 3.1 Preliminary Site Screening ............................... 3-1 3.2 Site Assessment Studies ................................. 3-3 3.3 Qualitative Risk -Screening Procedure ....................... 3-3 3.4 Closure Alternatives and Benefit and Impact Evaluation .......... 3-4 3.5 Closure Report ....................................... 3-4 4 Waste Site Identification, History and Status ..................... 4-1 4.1 Location ............................................ 4-1 4.2 Landowner .......................................... 4-2 4.3 Operator ............................................ 4-2 4.4 History of Operation ................................... 4-2 4.5 Closure Status ........................................ 4-7 5 Site Description ........................................... 5-1 5.1 Sullivan #1 .......................................... 5-1 5.2 Sullivan #2 .......................................... 5-2 5.3 Sullivan Strat #1 ...................................... 5-5 6 Environmental Setting ...................................... 6-1 6.1 Geology and Soils ..................................... 6-1 6.2 Regional Hydrogeology................................. 6-5 6.3 Climate ............................................ 6-6 6.4 Natural Resources ..................................... 6-7 6.5 Biological and Ecological Resources ........................ 6-7 6.6 Historical Resources ................................... 6-8 6.7 Human Resources ..................................... 6-8 7 Site Assessment ........................................... 7-1 7.1 Sampling Program and Results ............................ 7-1 7.2 Summary of Visual Inspection Observations ................... 7-1 7.2.1 Sullivan #1 ..................................... 7-1 7.2.2 Sullivan #2 ..................................... 7-1 7.2.3 Sullivan Strat #1 ................................ 7-14 7.2 Site Assessment Conclusions ............................ 7-14 7.3 Action Plan ........................................ 7-14 8 Risk Screening ....................................... 8-1 8.1 Description of Methods ................................. 8-1 8.2 Results of Risk Screening ................................ 8-6 9 Benefit -Impact Evaluation ................................... 9-1 10 Action Recommendation .................................... 10-1 11 Works Cited ............................................ 11-1 ANC10011DED.WP5 111 Contents (continued) Section Page Appendix A. Interim Site Assessment Guidance for Inactive Drilling Waste Sites Appendix B. Closure Documentation Reports Appendix C. Analytical Results Tables Number Page 7.1 Summary of Visual Inspection for Sullivan #1 ...................... 7-2 7.2 Summary of Visual Inspection for Sullivan #2 ...................... 7-5 7.3 Summary of Visual Inspection for Sullivan Strat #1 ................... 7-7 Figures 3.1 Site Study Plan for Reserve Pit Assessment and Closure ............... 3-2 4.1 Sullivan Wells General Location ................................ 4-3 4.2 Sullivan Wells Location Map .................................. 4-5 5.1 Sullivan #1 and Sullivan #2 Drill Site Locations .................... 5-3 5.2 Sullivan Strat #1 Drill Site Location ............................. 5-7 5.3 Sullivan Strat #1 Well Location ................................ 5-9 8.1 Risk Screening Procedure for Reserve Pit Assessment and Closure ........ 8-2 ANC1001IDED.WP5 iv Section 1 Declaration On the basis of information contained in this report, the reserve pit locations at the Sulli- van #1, Sullivan #2, and Sullivan Strat #1 wells should be declared non -locatable and no further action should be required by ADEC. The request for no further action is based on the following: • Field personnel were unable to locate the wellheads or reserve pits after searching more than eight staff hours on foot at each site; these structures are no longer identifiable. • The drill sites were located using survey information and a global position- ing system (GPS) device. No indication of stressed vegetation or other visual indications of waste effects on the environment could be detected at the well site locations. • The drill sites are covered with soil and indigenous vegetation. • Natural geologic and biologic processes continue to erode or cover the drill sites with soil and deadfall. • Human access to the sites is restricted because the access roads no longer exist and thick vegetation prevents easy access. • Further site delineation or intrusive investigations could cause greater adverse impacts to human health and the environment than leaving the sites alone. ANC100IIDE2.WP5 1-1 Section 2 Summary The Sullivan #1, Sullivan #2, and Sullivan Strat #1 drill sites are located between Cape Yakataga and Icy Cape. The well sites are about 3 miles inland from the Gulf of Alaska. Sullivan #1 and Sullivan #2 are adjacent to the Little River. Sullivan Strat #1 is adjacent to the Big River. Drilling operations and disposal of drilling materials were conducted in accordance with a state -issued drilling permit. All three Sullivan wells were exploratory wells that were never placed into production. Sullivan #1 well was plugged and abandoned on December 28, 1955, Sullivan #2 well on March 21, 1957, and Sullivan Strat #1 well on May 19, 1954. Drilling records indicate that drilling fluids and cuttings at each site were discharged into an adjacent reserve pit. All equipment was removed after the wells were plugged and abandoned. A follow-up reserve pit assessment was completed during the summer of 1993. The follow-up assessment included: • Visual site inspection • Qualitative risk screening The drilling pads and reserve pits were completely overgrown with dense vegetation and could not be located. Reserve pit materials were apparently covered, or may have washed down the river. Geologic and biologic processes continue to change site conditions. An extensive ground search at each site failed to reveal any physical evidence of reserve pit materials or any impacts resulting from their presence. A qualitative risk -screening evaluation estimated that risks posed by the sites are negligible. An impact and benefit analysis of further investigative actions indicate that greater health and environmental risks would result compared to leaving the sites alone. The Sullivan #1, Sullivan #2, and Sullivan Strat #1 sites should be declared closed and no further investigation required. ANCIo011DE3.wP5 2-1 All reasonable steps were taken to locate the reserve pits and no evidence of a well head reserve pit, or impacts thereof could be identified at any of the three Sullivan locations. ANC1001 IDE3.WP5 2-2 Section 3 Closure Study Approach This section summarizes the approach and methods used to determine closure status. The June 1991 Interim Site Assessment Guidance For Inactive Drilling Waste Sites (Appendix A) was used as a guide in performing the site assessment work presented in this report. The decision framework, used to determine site status and proposed actions, consists of five parts, described as follows: • Preliminary site screening to determine site status • Site assessment studies, including a site visit, sampling, and data analysis • Qualitative risk screening and, if a basis for concern exists, the identification of corrective action alternatives • A benefit and impact evaluation of corrective action alternatives (if a basis for concern exists but the risk is negligible) • Preparation of a report documenting the site assessment findings, risk screening results, and the preferred alternative (if corrective action is warranted) or documentation of adequate closure (if no further action is warranted). Figure 3-1 illustrates a flow diagram of the closure study plan. 3.1 Preliminary Site Screening A preliminary site screening was performed to collect background information that will be evaluated for closure according to ADEC interim guidance. ANCIOO11DE4.WP5 3-1 Inconclusive Data Additional Sampling and Analysis Yes Records Review Background Information Site Visit Visual Inspection Soil & Water Sampling Evaluate Information Basis for Concern Step 1 Risk r ificant Risk Risk Screening Negligible Step 2 Develop I Benefits > Impacts IImpact /Benefit Remediation Plan I Evaluation 3-2 Data Adequate Impacts > Benefits Closure Report No FIGURE 3.1 SITE STUDY PLAN FOR RESERVE PIT ASSESSMENT AND CLOSURE nPUum Available company records and AOGCC records, including inspection reports, drill togs, letters, drilling permits, were reviewed to collect background information on the site. Information was collected pertaining to the type of reserve pit materials that may have been generated during drilling and the actions taken to close the site after drilling was completed. 3.2 Site Assessment Studies The purpose of the site assessment is to determine whether leachate, or eroded soil from the reserve pit is posing a threat to human health or the environment by violating Alaska state water quality standards. Existing site conditions and the potential for future violations were addressed. Each reserve pit location was visited and visually inspected on foot. Information was collected on the local environmental setting, a visual inspection was performed to document site conditions. 3.3 Qualitative Risk -Screening Procedure A qualitative risk -screening procedure was used to identify whether a site poses a signifi- cant threat to human health or the environment. The qualitative screening process is used to distinguish those waste sites with negligible risk from sites that have significant risk to human health and the environment. The process is considered to be appropriate for sites where target contaminant concentrations range from non-detectable to low levels. Informa- tion collected during the preliminary screening and site assessment was used to estimate the level of risk at each reserve pit site. A two-step decision process was used in the qualitative risk screening procedure. The first step established whether there was a basis for concern. To establish a basis for concern, evidence of chemical contamination exceeding water quality standards and the presence of potential biological receptors were necessary. The second step established whether the site is likely to present a significant risk to human or environmental receptors. To determine if the level of risk is significant, exposure criteria and consequence criteria were evaluated sequentially. Site-specific data were reviewed to estimate contaminant release mechanisms, ANCIo01 IDE4.wP5 3-3 migration potential, and environmental persistence of contaminants. Human and wildlife use patterns were reviewed at each site to estimate the exposure risk based on duration or frequency of exposure to measured contaminants. If the risk was considered to be significant, conceptual remediation options to reduce the risk were presented. 3.4 Closure Alternatives and Benefit and Impact Evaluation If the risk -screening model indicated that probable risk is negligible, the impact and bene- fits of further action were considered. If it is estimated that the impacts from corrective action would be greater than leaving the site alone, the site could be considered to be adequately closed. 3.5 Closure Report This task involves consolidating the above information into a closure report documenting the findings from the application of the screening procedures at each inactive reserve pit location. This closure report follows the report format recommended in Section V of the ADEC June 1991 Interim Site Assessment Guidance For Inactive Drilling Waste Sites. ANCIOO11DE4.WP5 3-4 Section 4 Waste Site Identification, History, and Status 4.1 Location The Sullivan #1, Sullivan #2, and Sullivan Strat #1 wellheads are located on lands between the Malaspina Glacier and Cape Suckling in an area referred to as Icy Bay, (Figure 4.1). The wells are situated about 3 miles inland from the Gulf of Alaska, adjacent to the Little River (Figure 4-2). A legal description of the Sullivan #1 location follows: Southern half of the northwest quarter of Section 10, Township 22 South, Range 21 East, Copper River Meridian Latitude: 60001'19.9"N Longitude: 141048'57.5V Vd A legal description of the Sullivan #2 location follows: Eastern quarter of Section 9, Township 22 South, Range 21 East, Copper River Meridian Latitude: 60001'02.40'N Longitude: 141049'01.4V A legal description of the location is as follows: The northeast corner of the northwest quarter of the northeast quarter of Section 20, Township 22 South, Range 22 East, Copper River Meridian Latitude: Longitude: 60°00'04'N 141040'57'V ANC10011DE5.WP5 4-1 4.2 Landowner The landowner of all three Sullivan wells is the State of Alaska. 4.3 Operator The operator for all three Sullivan wells was Phillips Petroleum Company. 4.4 History of Operation All three Sullivan wells were wildcat exploratory wells never placed into production. Drilling for the Sullivan #1 well began on June 19, 1954, and was completed on December 28, 1955. The maximum well bore depth was 10,013 feet. Drilling for the Sullivan #2 well began on January 23, 1956, and was completed on March 21, 1956. The maximum well bore depth was 12,056 feet. Drilling for the Sullivan Strat #1 well began on April 11, 1954, and was completed on May 19, 1954. The maximum well bore depth was 4,837 feet. A review of the sites' drilling records indicates that freshwater -based muds were used in the drilling process. The viscosity of the drilling fluid was adjusted on an as -needed basis during the drilling operation. The muds at Sullivan #1 and #2 were spotted with diesel at various depths during the drilling operation to facilitate drill string lubrication. At Sullivan #2, calcium chloride and diesel oil were added to the bentonite muds during drilling, and salt water was added at various phases of operation. The size and location of reserve pits is not mentioned in the drilling records of these sites, although the standard practice at the time these wells were drilled was to excavate a reserve pit within about 100 feet of the well. Sullivan #1 was plugged and abandoned on December 28, 1955, Sullivan Strat #1 on May 19, 1954. Sullivan #2 was plugged and abandoned on March 21, 1957. The top well casing was plugged with 25 sacks of cement and a 4 -inch -diameter casing_ marker, extend- ing 4 feet above the ground, was placed above the well. ANCI00IIDE5NP5 4-2 SKULL RK , ?Va RIMDALL - v '694p •M1 ',. Tellln RV C 1 g4pL�. e�i5� ,,,,55lele Cree Cm < t et l8a o. orlhwil^Jc �'JDOer Slal¢la• SSA LaslT¢ll nVrt � 1 'pL+�iesB Va , Pa son 'oUemPs¢Y - •I .5^605 yC(¢ ' .S,Pro0v �ol°lsaim➢aa n Lc6rAdyg¢1 IAe3, F¢Sal "nTA6, 'BNOY3P/ .�.leN nIrCA 1(NeiG•(� iJ s y pt1 q 500• MEN7t1ST^/ 14 W6:11 nt 4 l �5{d4hfd @,na LodB¢ ''P�.r �PZk L3- i> N UT Z LL 4966 1 Sir r h8h ( `Yo. L' O Uevns lien lode¢ T I (y a V jANAPA PK NO _000PE0. IPSi ALLEN'A LE PR• 1 �J ,ana 1 ak na NF 1586 ultra SA pRO.. K 0 ail 0 060na t. . t/ !n I Ae' i� I llrrt fAnoDN 9 1 t �;:Prhisan 5e , MT 3ARV1��' C R. reek 1, j .1 � �n 5, 'V c 9AN��1 r� -a ' R per Cente Q frl ` / PgE ERI ' Ii" ere3e /� INE P I3a60 URN 0.S / r�aao'MT BucKe M T •^t r ower` ���} 1 A �- 1051 h helMT NP IAI jl $76 To[^sl a R ` LMc LN10R�/ S s T BONA ' Cldn 0. ,okpvla MJ-- e Tar r Ina rg i p'S1%Id 919 r L ep 1 Ox Y pChd lu Bath of �I�DIRES neael /w sPIRrt M 5aa4 R l A._ WIA 8530 OTTa r •8455 65 1 -J/ 1730 ORDOVA PP. ? q r N 3`� cramp W -- 5625 L HqE 3\>YL jl Cl� MS hla •-' T , •94i .J Vdr 1 �crjrAld 'l T. y 1 t y)TgpGH ON l �LLER Irk \MTI a �z l0 ria r �Afall Yt.'9P2 OIy '9p 0}�"C/ate l u, PJ�LP M) a Is' sGs�e 4� t r rl 13 Sullivan Wells O F I ALA S 0 40 80 SCALE IN MILES OgWgON Giai r-�' N ooKnight 0 ,8540 �/ Cr Ta 1365' = FIGURE 4.1 SULLIVAN WELLS GENERAL LOCATION Phillips Petroleum Company Icy Bay, Alaska muni Q ffl <Sullivan#1 Sullivan #2 •_..xr _�� rl �� 1�oil 1��� �11 , I 16 /fY l 22 23_i 22 23 24 2$ I 23 "26 25 GULF OF ALASKA o 1 z I\ x SCALE IN MILES 11 FIGURE 4.2 SULLIVAN WELLS LOCATION MAP Phillips Petroleum Company Icy Bay, Alaska nF�u►n 4.5 Closure Status The Sullivan #1 well site was closed in accordance with requirements in existence at the time of closure. The well was closed by cementing it shut. It is believed that excess drilling fluids were discharged down the well before abandonment and the remaining reserve pit solids were covered with soil. The Sullivan #2 well site was closed in accordance with requirements in existence at the time of closure. The drilling records do not mention the use or closure of a reserve pit. The site was closed by cementing the well shut and placing a 4 -foot -high marker over the well. The Sullivan Strat #1 well was plugged and abandoned in accordance with closure requirements in existence at the time of closure. The site was closed by cementing the well shut. ANC1oo11DE5.WP5 4-7 Section 5 Site Description 5.1 Sullivan #1 Wellhead Marker The Sullivan #1 wellhead marker and reserve pit(s) could not be located by the field team, either from the ground or from the air (Figure 5.1). A Trimble Navigator Global Positioning System (GPS), a Bering Glacier A-3 quadrangle topographic map, and Brunton field compass were used to establish (with an accuracy of 75 feet) the wellhead location (Figure 5.1). Once this location was established, a sur- rounding 300 -foot by 500 -foot -square area was searched for remnants of a wellhead, reserve pit, and well site debris. A description of the well site area follows. Well Site Area The Sullivan #1 well site area is situated on a 15 -foot -high bluff 200 feet from the Little River, in an area where the river flows into the mouth of a canyon. The well site is about 0.5 mile southeast of the toe of Lare Glacier, the source of the headwater to the Little River. The access road to the well site was washed out about 4 years ago, according to a local resident. The well site area is relatively flat, with large logs and overburden that had been pushed into the riverbed by a bulldozer. The logs were stacked parallel to the river. In addition to the logs, the only physical remnants indicating a former drill site were an old stove pipe, an empty rusted barrel, and a 1.5 -inch -diameter steel cable, extending from the river bank to the bluff. Remnants of a Butler building used in drilling operations was found in the vicinity of the drill site locations. The presence of fine-grain backwater deposits and hemlock and spruce trees indicates that this area has been flooded by the Little River in the past. The vegetation consists of hem- lock and spruce trees with 2 -inch -diameter trunks, alders more than 10 feet in height, sahnonberry bushes, devil's club, and ferns. ANC10011DE6.WP5 5-1 The site is remote. It can be accessed in summer by helicopter and foot travel. 5.2 Sullivan #2 Wellhead Marker The Sullivan #2 wellhead marker and reserve pit could not be located by the field team, either from the ground or from the air (Figure 5.1). References, including GPS, a Bering Glacier A-3 quadrangle topographic map, and Brunton field compass, were used to ascertain (with an accuracy of 75 feet) the wellhead location. Once this location was established, a surrounding 75 -foot by 75 -foot -square area was searched for visible remnants of a wellhead, reserve pit, and well site debris. Well Site Area According to Phillips correspondence, the Sullivan #2 well was drilled 'only a few feet from Little River, which flows in a south-southeast direction from Sullivan #1" and about 1,280 feet south from Sullivan #1. The area investigated is situated in a low-lying area along the river bank that, based on its position, is probably flooded by the river at least every spring during breakup. The flooding appears to be quite severe as evidenced by a very large tree (with trunk 5 feet in diameter) that was undercut, swept downriver, and deposited below Sullivan #2.). The ground is wet and swampy with ponded surface water throughout the area. According to a local resident, the access road to the Sullivan #1 and #2 sites was washed out about 4 years ago. Vegetation consists primarily of alders less than 8 feet in height in boggy, swampy areas. No physical remnants of drilling were found at the site. The site is remote. It can be accessed in summer by helicopter and foot travel. There are no roads leading directly to the well site. ANCI001IDE6MP5 5-2 Location of Sullivan #1 and #2, looking north. Approximate search areas are highlighted. Establishing wellhead location for Sullivan #1 by using GPS. FIGURE 5.1 SULLIVAN #1 and SULLIVAN #2 DRILL SITE LOCATIONS JULY 1993 5.3 Sullivan Strat #1 The Sullivan Strat #1 wellhead marker and reserve pit could not be located by the field team. Reconnaissance of the site by air was unsuccessful because of the amount of vegeta- tion covering the site (Figure 5.2). A Bering Glacier A-2 quadrangle topographic map, GPS, and a Brunton field compass were used in searching for the Sullivan Strat #1 wellhead location. The location was established with an accuracy of about 75 feet. A 500 -foot by 500 -foot -square area was searched for visible remnants of a wellhead, reserve pit, and well site debris. The search area was later expanded to a 0.5 -mile by 2 -mile area that included the west bank of the Big River. Well Site Area The Sullivan Strat #1 well site area is on an active river floodplain terrace, about 0.5 mile southwest of the toe of Beare Glacier, and 4 miles northeast of the mouth of the Big River (Figures 5.2 and 5.3). The site is bordered to the west and north by the steep slope of an adjoining terrace that rises about 100 feet above the site. To the east and south the site is bordered by the Big River. Big River was formed by glacial runoff from Beare Glacier and rain and snow meltwater from the surrounding mountains. In this case, an artesian spring, found 20 feet from the ice of Beare Glacier, supplies Big River with a constant supply of water, which is supplemented with rain and meltwater. The only visible remnants of drilling activities were an old stove pipe, four lengths of 9 -inch -diameter drill rod covered by the forest carpet, and two rusted empty barrels. Active geological processes affecting the well site area include: • Flooding • Landslides from the adjoining ridge No signs of a wellhead marker or reserve pit remain. The drill site access road constructed by Phillips has also been undercut and buried by the Big River. No visible signs of the road were evident. ANC10011DE6.WP5 5-5 The entire area is covered by a thick foliage, which includes hemlock and spruce trees, alder, salmonberry bushes, devil's club, and a forest mat. The largest hemlock and spruce trees (with trunks up to 24 inches in diameter) are located next to the adjoining terrace, with alder and birch cover near the river. This suggests that the area is periodically flooded to the base of the adjoining terrace. The site is remote. Access to the site is primarily by helicopter and foot travel in summer. A logging road is located about 1 mile west of the site. ANCIOOI IDE6.WP5 5-6 44VA, 4 :Iom Sullivan Strat#1 location, looking north. Beare Glacier in upper right hand corner of photo. area of site is highlighted. Toe of Beare Glacier and head of Big River in upper right hand comer. FIGURE 5.2 SULLIVAN STRAT #1 DRILL SITE LOCATION JULY 1993 Sullivan Strat #1 well site area in trees on first terrace, looking southwest. FIGURE 5.3 SULLIVAN STRAT #1 WELL LOCATION JULY 1993 Section 6 Environmental Setting 6.1 Geology and Soils This section describes the environmental setting of three wells—Sullivan #1, Sullivan #2, and Sullivan Strat #1, which are located near each other in a similar environment. Many geological field investigations have mapped the region surrounding the Sullivan #1, Sullivan #2, and Sullivan Strat #1 drill sites, mainly because of the deposits of oil, natural gas, coal, and hard metals that have been found in the region, and the glaciation found throughout. Relevant sources of information used to describe the geology and soils of the area include G. Plafker, T. Hudson, M. Rubin and K. Dixon (from 1975 to 1980); M. Miller in 1955; L. Yehle (1977); D. Miller (1951); R. Kachadoorian (1963); C. Wahrhaftig (1965); and T. Pewe (1975). Regional Physiographic and Geological Setting The Icy Bay drill sites are in the Pacific Border Range physiographic subprovince, within an informal section called the Gulf of Alaska Coastal section in the Bering Glacier Region. The region is bordered to the north by the Kenai -Chugach Mountain section (extremely rugged ridges rising 7,000 to 13,000 feet, the higher peaks draped with ice fields that feed valley and piedmont glaciers); to the northeast and east by the St. Elias Mountain section (massive, isolated peaks 14,000 to 20,000 feet high, separated by a myriad of narrow ridges and sharp peaks 8,000 to 10,000 feet high that are drained by a network of glaciers); to the west by the Copper River lowland; and to the south by the Gulf of Alaska. The Bering Glacier subregion coastal area is a massive unit of ice and glaciers cut by one major estuary—Icy Bay. Within the subregion, the drill sites are located in a low foreland that ranges in width from 0.5 to about 5 miles at Munday Creek and Icy Cape, respectively. The foreland, immediately backed by the rugged Yakataga Mountain front, consists of a sequence of marine terraces and glacial moraines that rise from sea level to 400 feet within 4 miles. ANCIOOI IE46.W P5 6-1 Bedrock in most of the study area consists of Tertiary- and Holocene -age marine and continental clastic rocks, which range from 1.8 to 65 million years in age, and are broadly divisible into three subdivisions. The subdivisions are (1) an early Tertiary sequence (40 to 65 million years of age) of hard, dense siltstone and sandstone that is variably deformed and highly faulted, and associated volcanic rocks along with shallow marine coal bearing clastic rocks; overlain by (2) a middle Tertiary sequence, (30 to 40 million years of age) composed of mudstone and siltstone; and followed by (3) a late Tertiary through Holocene sequence called the Yakataga Formation, consisting of a marine diamictite characterized by abundant glacial detritus, muddy sandstone, and conglomeratic sand mudstone. The Yakataga Formation reflects deposition adjacent to the intensely glaciated Fairweather Mountains that border the sites; deposition of these strata probably correlates to uplift of these mountains. The Yakataga Formation is also found directly off the shoreline of the study area as a barrier reef called the Yakataga reef. The Icy Bay area is at the continental margin, lying in a tectonically active transition zone between transform and convergent plate motion. The transition zone is informally called the Pamplona zone, a seismic gap that connects the Aleutian trench and volcanic arc to a transform fault system, composed of the Queen Charlotte, Fairweather, and related fault. The transorm fault system was caused by the Pacific plate moving past the North American plate (transform motion). The Aleutian trench and are were caused by the underthrusting of the Pacific plate beneath the continental margin (convergent plate motion). Visible evidence associated with the convergentent and transform motion includes complex folds and faults and volcanic cones in the Wrangell Mountains, and ongoing uplift of terrane at the rate of about 3 inches per year in the Icy Bay area. Faults in the immediate area of the drill sites include the Fairweather Fault system and related local drag faults such as the Sullivan fault and the Yakataga fault. Uplift of the Yakataga block within the Pamplona zone is at an average rate of about 3 inches per year. The major faults do not appear to have been active within the past 5,000 years; future extreme uplift of the areas would most probably occur during a major earthquake along the convergent plate margin. However, the area is in a zone of high seismic activity, where many earthquakes greater than 6.0 in magnitude on the Richter Scale, four greater than 8.0, have occurred since 1899 and are likely to continue to occur. ANCIOo1IF46.WP5 6-2 Several volcanoes located in the region have also been active in the past 100 years. These include Iliarnna, Redoubt, Spun, and Saint Augustine, each of which have the potential of becoming active at any time. Regional Geomorphology and Related Surficial Deposits The Tertiary rocks are overlain with marked angular unconformity by essentially horizontal, unconsolidated deposits of Quarternary age (1.8 millions years of age to present). Deposits are made up of a complex sequence of neoglacial fluvial, lagoonal, beach, and marine terrace deposits. Marine Terrace and Beach Deposits The forelands consist of a sequence of three marine terraces containing beach, barrier island, and backwater lagoonal deposits. The terraces, a product of paleoearthquake uplift, are in evidence from Cape Yakataga to Big River and have elevations of about 50, 75 and 160 feet, rising toward the glaciated Robinson mountains. Terrace beach and barrier island deposits are granular, generally consisting of sand and gravelly sand to pebbly cobble gravel with some boulders. Terrace backwater lagoonal deposits (overlying the beach and barrier island deposits) are fine, chiefly sand, silt and organic silts. The two higher terraces are also mantled by talus, slopewash and alluvial deposits caused by glacial fluctuations of Guyot, Lare, and Bear glaciers, and increased sediment supply caused by uplift. The lowest terrace and the modern shoreline deposits are built principally by waves and longshore currents. Such deposits include barrier beaches, spits, barrier islands, and forelands. Deposits are granular deposits, generally consisting of sand and gravelly sand, to pebbly cobble gravel with some boulders. Glacial Deposits The absence of recognizable marine terraces east of Big River and the broad foreland in the Icy Cape area are primarily the product of repeated glacial advances and retreats over the last 40,000 years. Glacial retreats have resulted in two recognizable topographic ANC10011FA6.WP5 6-3 subdivisions: (1) ground moraines, (2) terminal or lateral moraines, and (3) outwash land - forms associated with moraines. Extensive outer and inner terminal moraines were deposited as marine glacial till during the last advance of Guyot Glacier. The moraines, visible as well developed low ridges, extend between Big River and Icy Cape, and northeastward from Icy Cape. These deposits generally consist of till composed mainly of diamicton—a poorly sorted mixture of clay, silt sands, and gravel plus occasional boulders. Well -sorted, discontinuous lenses of sand and sandy gravel are also found throughout. Other principal glacier -related features found in the area are outwash channel deposits, laid down by meltwater within or just outside the bounds of the glaciers. Outwash train and valley train deposits were laid down by meltwater streams that extended beyond the mar- gins of the glaciers either in existing valley streams or in channels newly eroded through the moraines. Outwash channel deposits are mostly bedded sands and gravels. Outwash train and valley train deposits are chiefly well -bedded granular material consisting of sands and gravels. Alluvial and Colluvial Deposits Most nonglacial deposits in the area are recent, having been deposited on top of or cutting through the glacial deposits within the last 100,000 years. These include alluvial, colluvial, and landslide deposits, plus bog, pond, and lake deposits. Alluvial deposits originate by deposition from streams, and most include large quantities or reworked glacial outwash. These deposits include stream valleys within active floodplains and alluvial fans and cones that occur mainly where small streams debouch onto valley floors of major creeks and rivers. Alluvial stream deposits generally consist of granular materials that include well -bedded sands and gravels, with silty sand found in bars and very low terraces subject to continual reworking by the rivers, finally graded at sea level. Stream deposits are generally not covered by vegetation. Some fine silts and sands are found in valley bottoms and low terraces along low -gradient streams. Colluvial deposits, or colluvium, are deposits that have accumulated on or along the flank and base of slopes with the aid of gravity and running water. The source of colluvium is often a combination of eroded morainal or alluvial deposits and underlying bedrock; they ANC100IM6.WP5 6-4 are generally irregularly mixed fragments of many sizes, unsorted and loose. Colluvium generally occurs as a downslope -thickening wedge of silts and sands, with some gravel, clay, boulders and bedrock fragments. Landslide deposits are developed as immediate, one- time gravitational failures along discrete buried surfaces in soft sedimentary rock or overlying surficial deposits. They occur as single slides along the incised stream valley walls and generally consist of diamicton, relatively minor amounts of clay and some organic material, as well as boulders and relatively large masses of bedrock. Bog, pond, and lake deposits are less well distributed throughout the study area, but where found, often cover other surficial deposits that extend beneath them. These deposits consist chiefly of peat (mosses, sedges, and other decomposing organic debris) and organic silt within minor woody horizons and numerous thin interbeds of tephra ash. Deposits also occasionally include clay and fine sand. Site Soil Information on the soil was obtained from a previous investigations conducted by CH2M HILL personnel, a field investigation in July 1993, and original drilling logs. Generally, site conditions consisted of at least 1 foot of organics and organic silts, and associated active floodplain deposits. These are generally underlain by sands and gravels to depth with an occasional diamicton layer at depth. 6.2 Regional Hydrogeology Little River and Big River are typical of streams found throughout the southern part of the subregion: short and swift glacial -fed streams with large sediment loads reworking alluvial and outwash deposits. Big River starts as an artesian spring at the margin of Bear Glacier; additional water is drained from surrounding mountains as rain and snow meltwater. Little River begins at the margin of Lare Glacier; again additional rain and meltwater is drained from surrounding mountains. Both rivers empty into the Gulf of Alaska, with extensive deltas and channels blocked by longshore transport of sediments running parallel to the beach for varying lengths. ANC10011F46.wP5 6-5 Regional groundwater flow predominates in direction from the mountains and glaciers toward the Gulf of Alaska. Regional groundwater flow is evidenced by seeps along the shoreline bluffs of the first marine terrace south of the well sites. 6.3 Climate The principal factors affecting the climate include latitude and geographic position relative to glaciers, large land masses, and the Gulf of Alaska. The Cape Yakataga to Icy Bay area is a maritime climate strongly affected by the Gulf of Alaska. Inland mountains, rising more than 10,000 feet, cause offshore winds to drop their moisture. With no terrain influences involved, annual extremes in precipitation and temperature often occur. These extremes result from outbreaks of extremely cold air in winter and relatively hot air in summer from Interior Alaska. Precipitation The weather station measuring precipitation closest to the Icy Bay well sites is at the Cape Yakataga airstrip on the shore of the Gulf of Alaska. The station is at an elevation of 30 feet. Continuous measurements have been recorded since 1943. Average annual precipitation is 134 inches. Rain, fog, and overcast skies occur on an average of about 80 percent of the days in the summer, although there is great variation between summers of different years. Temperature Seasonal variations are exaggerated because of the reduced number of daylight hours during the winter. January has the lowest monthly mean temperature at 27.7°F. July has highest monthly mean temperature at 53.1°F. Average monthly temperature is 40°F with a daily temperature fluctuations averaging 9.5°F. The monthly mean temperature is almost continuously below freezing for 3 months of the year. Ponds and other stagnant surface water surrounding the site can be expected to be frozen for about 3 months of the year. ANC100I IE46.WP5 6-6 Wind I Winds are generally out of the south in the summer and out of the north in the fall, winter, and spring. Average offshore wind speeds are moderate at 12 to 18 knots; however, winds of 75 to 100 knots can occur over the open water and storms with 50- to 75 -knot winds occur every winter with wind speeds of up to 100 knots recorded. Winds are lightest in the summer months. 6.4 Natural Resources The primary natural resources near the well sites that have proven or potential economic value located include logging, commercial fishing, and gold mining. The area near the Sullivan Strat #1 well site has been logged in the past. Additional log- ging to the south and east is currently underway. The area directly surrounding Sullivan #1 and #2 has not been logged because of steep terrain and both wells falling within "buffer zones" around rivers and creeks where logging is prohibited. Icy Bay and the shoreline directly off the well sites contains commercial fisheries that include Pacific salmon and king, tanner, and opilio crab. This information was obtained through firsthand observations of fishing boats plying the waters off Yakataga Reef in the Gulf of Alaska, Icy Bay, and the Copper River drainage. The Icy Bay area has also been the site of limited placer gold mining activity (especially to the north along the White River) and extensive exploration since the turn of the century. Placer gold has been found in all three terraces in past investigations by personnel currently employed by C112M HILL. Much of the land in the area is closed to mining. 6.5 Biological and Ecological Resources The area surrounding the well sites is densely forested. Because of the steep topography in much of the region, the forest is confined to a relatively narrow strip bordering most of the coastal areas and extending up the valleys and terraces. Mountain hemlock is the major constituent of most of the coniferous forest, although Sitka spruce is also common. ANC100111316.WP5 6-7 Western hemlock, Alaska cedar, cottonwood, aspen, white spruce, and paper birch are also present in the area. The forest understory includes a variety of shrubs such as alder, blueberry, lingonberry, huckleberry, mountain ash, devil's club, red -berried elder, copper - bush, and salmonberry. Ground cover is dominated by mosses, and there is a wide variety of herbs, ferns, mosses, dwarf dogwood, twisted stalk, goldthread, and five -leaved bramble. Invertebrates, such as nematodes, protozoans, and earthworms, inhabit soil and forest litter. Spiders and insects are common in the area. Mosquito and other insect larvae develop and feed in freshwater ponds and puddles. Moose, brown and black bear, and Sitka blacktail deer are common in the Icy Bay region, Bears feed in coastal grass and sedge flats or forage along the beaches in the spring and early summer. As summer progresses, the bears congregate along streams to feed on salmon. Other terrestrial mammal species found in the area include mink, land otter, wolverine, red fox, wolf, coyote, lynx, beaver, muskrat, marten, weasel, red squirrel, and snowshoe hare. A variety of sport fish can be found in nearby streams, including arctic char, Dolly Varden, and lake trout. Also, all five species of Pacific salmon spawn in the various clearwater streams of the Icy Bay region. 6.6 Historical Resources There are no known historical resources within 1 mile of the well sites. 6.7 Human Resources The well sites can be reached by helicopter or by walking at least 2 miles from a logging road that runs from the White River (near the community of Cape Yakataga), which is about 20 miles west, to the Sullivan Logging Camp at Icy Bay, about 10 miles east of the site. There are fewer than 50 residents in Cape Yakataga and, according to the camp manager, Sullivan Logging Camp will have fewer than 100 residents during peak produc- tion. There are also a few barricaded, abandoned and overgrown logging spur roads in the ANC100I1FA6.WP5 6-8 vicinity of the area where the Sullivan Strat #1 well site was located. Hunters sometimes travel these roads in the Icy Bay region. ANCIOOL1H46.WP5 6-9 Section 7 Site Assessment Site visits were conducted to provide support documentation for reserve pit closure. A visual inspection of the site was conducted to satisfy requirements of the Qualitative Risk Screening Procedure. The results of the site visit are described below. No sampling was conducted at the Sullivan well sites. 7.1 Sampling Program and Results No visible remnants of wellhead markers, pads, or reserve pits were found in the areas where Sullivan Strat #1, Sullivan #1, and Sullivan #2 were thought to have been located. Because no reserve pit areas could be located, it was deemed inappropriate to sample soil or surface water. 7.2 Summary of Visual Inspection Observations 7.2.1 Sullivan #1 On July 19, 1993, a three-member CH2M HILL field team spent about 4 hours trying to locate the Sullivan #1 well site in heavy foliage near the Little River and Lare Glacier. The following day, a survey conducted from the air was unsuccessful in locating the former well site area. Inspection results and observations are summarized in Table 7.1. 7.2.2 Sullivan #2 On July 19, 1993, a three-member CH2M HILL field team spent about 3 hours trying to locate the Sullivan #2 well site in heavy foliage near the Little River and Lare Glacier. Although visible remnants of the well head or reserve pit were never found on the ground, from the air, or in aerial photographs, CH2M HILL conducted a site inspection for ANC10011F4E.WP5 7-1 Table 7.1 Summary of Visual Inspection for Sullivan #1 Page 1 of 2 Parameters Yes/No Comments Evidence of reserve pit materials No No apparent evidence of drilling muds or formational cuttings, or even of reserve pit location. Plus, according to drilling records, drilling wastes were injected downhole for disposal. Evidence of leakage through NA impoundment dike walls Evidence of leakage or seepage through cover, such as: 1. Damp/wet spots 1. No 1. No apparent wet/damp spots, entire area investigated was part of a floodplain. 2. Areas of dead or lush 2. No 2. No unusual vegetation patterns noted, vegetation extreme vegetation throughout area. 3. Aquatic vegetation in 3. No 3. No seeps therefore no aquatic vegetation in perennial seeps seeps. Evidence of leakage or seepage NA through the dikes. Evidence of impoundment No No apparent evidence of impoundment overflow overflow, such as: denuded directly related to reserve pit seen downgradient areas, insufficient freeboard, erosion of dikes or downstream area Vegetation stress No No apparent stressed vegetation in well site area observed from ground or during aerial inspection Excessive erosion No No excessive erosion observed during ground or aerial inspection Slope instability NA Uniform subsidence or differential NA settling Surface ponding or standing liquid NA on cover Effects of natural events Yes Entire well site area within a floodplain. Several such as floods, landslides, etc. inches of floodplain deposits found throughout. Evidence of animal activities that NA may have damaged impoundment dike walls or covers ANC10011829.WP5 7-2 Table 7.1 Summary of Visual Inspection for Sullivan #1 Page 2 of 2 Parameters Yes/No Comments Potential for surface water Minimal potential; well site area is gaining cover contacting waste material (floodplain deposits) Evidence of surface debris Yes Rusted barrel, old tin stove pipe, and a 1.5 -inch - diameter steel cable running from the site to the Little River was found. In addition, several lengths of 5 -inch -diameter drill rod were found downstream of the well site, but upstream of Sullivan #2. Evidence of stained soils No No apparent staining in well site area. ANC1001 I829.WPS 7-3 conditions suggested in the ADEC guidelines. Inspection results and observations are sum- marized in Table 7.2. 7.2.3 Sullivan Strat #1 On July 19, 1993, a three-member CH2M HILL field team spent about 5 hours trying to locate the well site for Sullivan Strat #1 in heavy foliage near the headwaters of the Big River and Beare Glacier. An attempt was also made to locate the site from the air. Although visible remnants of the wellhead or reserve pit were never found on the ground, from the air, or in aerial photographs, CH2M HILL conducted a site inspection for specific conditions suggested in the ADEC guidelines. Inspection results and observations are summarized in Table 7.3. 7.3 Site Assessment Conclusions Because the drill sites could not be located, no surface soil or surface water samples were collected or analyzed at Sullivan #1, Sullivan #2, or Sullivan Strat #1. Visual inspections did not identify any evidence of reserve pits or impacts thereof. No evidence of a well head or reserve pit could be identified at the reported location of the Sullivan wells. 7.4 Action Plan Action plans were not prepared for the Sullivan well sites because the available site data indicate negligible risk to human health and the environment due to reserve pit materials. Any action at these sites would require mobilization and demobilization of personnel and equipment, thus posing greater risks to human health and the environment than the no further action alternative. ANC100I1FAE.WP5 7-4 Table 7.2 Summary of Visual Inspection for Sullivan #2 Page 1 of 2 Parameters Yes/No Comments Evidence of reserve pit materials No No apparent evidence of drilling muds or formational cuttings, or even of reserve pit location. Plus, according to drilling records, drilling wastes were injected downhole for disposal. Evidence of leakage through NA impoundment dike walls Evidence of leakage or seepage through cover, such as: 1. Damp/wet spots 1. No 1. No apparent wet/damp spots, entire area investigated was par of a floodplain. 2. Areas of dead or lush 2. No 2. No unusual vegetation patterns noted, vegetation extreme vegetation throughout area. 3. Aquatic vegetation in 3. No 3. No seeps therefore no aquatic vegetation perennial seeps in seeps. Evidence of leakage or seepage NA through the dikes. Evidence of impoundment No No apparent evidence of impoundment overflow overflow, such as: denuded directly related to reserve pit seen. downgradient areas, insufficient freeboard, erosion of dikes or downstream area Vegetation stress No No apparent stressed vegetation in well site area observed from ground or during aerial inspection Excessive erosion No No excessive erosion observed during ground or aerial inspection Slope instability NA Uniform subsidence or differential NA settling Surface ponding or standing liquid NA on cover Effects of natural events Yes Majority of well site area within active floodplain. such as floods, landslides, etc. Rest of well site area would lie in what is now the Little River stream channel. Evidence of animal activities that NA may have damaged impoundment dike walls or covers ANC1001182C.WP5 7_5 Table 7.2 Summary of Visual Inspection for Sullivan #2 Page 2 of 2 Parameters Yes/No Comments Potential for surface water Minimal, area has been extensively reworked by contacting waste Little River in the last 39 years since drilling, Evidence of surface debris Yes Several lengths of 5 -inch -diameter drill rod were found downstream of the well site. Several pieces of siding from Butler building found downstream. Evidence of stained soils No No apparent staining in well site area. A NCloot ts2C.wr5 7.-6 Table 7.3 Summary of Visual Inspection for Sullivan Strat #1 Page 1 of 2 Parameters Yes/No Comments Evidence of reserve pit materials No No apparent evidence of drilling muds or formational cuttings, or even of reserve pit location. Plus, according to drilling records, drilling fluids were injected downhole for disposal. Evidence of leakage through NA impoundment dike walls Evidence of leakage or seepage through cover, such as: 1. Damp/wet spots 1. No 1. No apparent wet/damp spots, entire area investigated was part of a floodplain. 2. Areas of dead or lush 2. No 2. No unusual vegetation patterns noted, vegetation extreme vegetation throughout area. 3. Aquatic vegetation in 3. No 3. No seeps therefore no aquatic vegetation in perennial seeps seeps. Evidence of leakage or seepage NA through the dikes. Evidence of impoundment NA overflow, such as: denuded downgradient areas, insufficient freeboard, erosion of dikes or downstream area Vegetation stress No No apparent stressed vegetation in well site area observed from ground or during aerial inspection Excessive erosion No No excessive erosion observed during ground or aerial inspection Slope instability NA Uniform subsidence or differential NA settling Surface ponding or standing liquid NA on cover Effects of natural events Yes Entire well site area within a floodplain. Several such as floods, landslides, etc. lengths of 9 -inch -diameter drill rod buried by several inches of floodplain deposits Evidence of animal activities that NA may have damaged impoundment dike walls or covers ANC10011828.WP5 7-7 Table 7.3 Summary of Visual Inspection for Sullivan Strat #1 Page 2 of 2 Parameters Yes/No Comments Potential for surface water Minimal potential; well site area is gaining cover contacting waste material (floodplain deposits) and colluvial deposits from debris slides off of adjoining steep - sloped ridge. Evidence of surface debris Yes Found four lengths of 9 -inch -diameter drill rod, an old tin stove pipe, and three -rusted out, empty barrels. Evidence of stained soils No No apparent staining in well site area. ANC100I1828.WP5 7-8 Section 8 Risk Screening 8.1 Description of Methods This section describes the methods used for performing the qualitative risk screening and describes the results of the process. Qualitative risk screening was used to identify whether a site is likely to have a significant impact on human health or the environment. A two-step decision process was used in the qualitative risk screening procedure. The first step established whether there was a basis for concern of a risk. The second step estab- lished whether the waste site is likely to present significant risk to human or environmental receptors. The risk screening process is summarized in Figure 8.1. To determine if a basis for concern exists, the information from the visual inspection and sampling program was reviewed. A basis for concern was determined to be present if a biological receptor was located within the zone of chemical contamination and either of the following was true: • Evidence of release of chemical contamination at the waste site was in excess of Alaska water quality standards for one or more target compounds • A mechanism for release of waste or byproducts of the waste was present If either the mechanism for potential release or the proximity to biological receptors risk factors is not present at a site, there is no basis for concern and the site should not require further study or corrective action. If the mechanism for potential release exists at the site and biological receptors risk factors are present, there is a potential risk and the risk screening progresses to the second step. If a basis for concern exists, it must be determined whether the risk is significant. The level of risk is determined by the extent of exposure and the potential consequence of that exposure. ANCIOOI IE55.WP5 8-1 Em Receptor exposure is considered to be likely when the following apply: • Contaminant release mechanisms are estimated to be significant • Contaminant migration is estimated to be significant • One or more contaminants are environmentally persistent Contaminant release mechanisms were considered to be significant if target compounds associated with a waste site were found in higher concentrations in adjacent water and soil than in background locations, or if other physical characteristics of a site indicated that waste could be released. Visual evidence of physical release mechanisms may include erosion, unstable areas, flooding, or exposed waste. The type, quantity, and age of the waste are important factors that may effect the release potential of a site. The contaminant migration potential can be measured directly if sampling data are available for offsite locations downgradient from the reserve pit. If no direct evidence of migration is available, the migration potential was assessed indirectly by evaluating the likelihood that a mechanism exists to mobilize the soluble constituents from the source. The migration mechanisms of greatest interest at reserve pits are surface water movement and the percolation or channeling of surface waters through soil to groundwater. Topography exerts an obvious influence on surface water movement, and in many settings is an easily observed migration mechanism. Wind action and freeze and thaw cycles may also influence surface water movement from reserve pits. Hydrogeology and soil conditions affect groundwater travel times and attenuation. Environmental persistence is evaluated in terms of the current levels of contamination relative to the age of the pit, or natural persistence in the environment. Factors contributing to persistence include resistance to biological or chemical degradation. If exposure is found to be unlikely, there is no need to evaluate the consequence criteria that follows. A finding of negligible risk is made on the basis of absence of a likely expo- sure term. The action plan is then evaluated in Section 9 under the impact and benefit evaluation. If any one of the exposure criteria are satisfied, a finding is made that exposure is likely. Screening continues to evaluate the potential consequence of exposure. ANC10011E55.WP5 8-3 Adverse consequences of exposure to constituents from reserve pits are considered to be likely when the duration or frequency of exposure is sufficient to cause adverse health or environmental effects and either of the following apply: • The quantity or concentration of one or more contaminants exceeds pertinent federal or state water quality criteria or standards protecting health or the environment • One or more contaminants exhibit high acute toxicity The likelihood that exposure duration or frequency would be sufficient to cause adverse health or environmental effects is evaluated by reviewing human and wildlife use patterns at a given waste site, waste site accessibility, and ground and surface water uses. If the assessment of migration potential indicates that there is a potential for target contaminants to move to a surface or groundwater resource, the evaluation of this duration and frequency criterion will be used to estimate the extent to which the potentially affected water resource is used by human or environmental receptors. For migrating or nomadic receptors, the availability of other similar water resources will be considered. The potential for exposure through direct ingestion of reserve pit contents will be evaluated and will include estimates of the frequency and duration of ingestion episodes as well as biological uptake characteristics of the target compounds. For the quantity and concentration criteria, measured contaminant concentration in the water will be compared with health and environmental standards and criteria for each target compound to identify whether the concentration exceeds established water quality standards. When human populations are at risk, health criteria are used. When the populations at risk are nonhuman, such as fish, wildlife, and vegetation, environmental criteria and standards are -used. The NIOSH toxicity rating system (NIOSH 1974) will be used to identify contaminants that are highly toxic to mammals. This information will be used to determine whether a target compound exhibits acute high toxicity. The system ranks substances according to acute toxicity estimates, which is the customary method used to determine the toxicity of a chemical. LD50 is the dose, either oral or dermal, at which 50 percent of the exposed population will die. Several designations of toxicity are generally recognized by toxicity specialists. The designations include unknown, non-toxic, slight, moderate, and severe. An unknown designation means insufficient data are available to enable a valid assessment. ANCIOOIIWS.WP5 8-4 l Chemicals designated as non-toxic produce no toxic effects under normal use or require 1 overwhelming doses to produce toxic effects in humans. Slightly toxic chemicals may produce effects that are reversible when the exposure ceases. Moderately toxic chemicals can cause reversible or irreversible changes, but they are not necessarily severe enough to cause serious physical impairment or threaten life. Highly toxic chemicals are those that can threaten life or cause permanent physical impairment over continuous low-level expo- sure or by a single exposure. Highly toxic substances are those with an oral LD50 value equal to or less than 50 mg/kg, a dermal LD50 equal to or less than 100 mg/kg, or an inhalation LC50 equal to or less than 43 ppm. A similar ranking system has not been developed for aquatic organisms; however, 1 mg/L is often the LC50 value used as a criteria for identifying chemicals highly toxic to aquatic life. In addition to this evaluation of acute toxicity, the waste site data will be evaluated to identify the potential for biological concentration of contaminants in the food chain to reach acute toxic levels. If the duration and frequency of exposure is insufficient to cause adverse effects, there is no need to evaluate the other two consequence criteria, and a finding of negligible risk is made. The action plan is then evaluated in Section 9, Impact versus Benefit Evaluation. If the duration and frequency of exposure is determined to be sufficient to cause adverse effects and either of the other two consequence criteria are satisfied, then a finding is made that adverse consequences are likely, and the risk at a waste site is estimated to be signifi- cant. If the screening indicates that risk is significant, the development of a corrective action plan is warranted. The results of applying the risk -screening model will be summarized in a table showing the criteria applied, the result of the application. (yes, the criterion was met, or no, the criterion was not met), the reason for meeting or not meeting the criterion, and the outcome of the screening step (whether a basis for concern exists; whether risk is significant). The waste site will fall into one of three categories: • No further action required (there is no basis for concern) • Risk is negligible (a subsequent evaluation will be made to determine if corrective action is desirable) • Risk is significant (corrective action is necessary) ANC100I IE55.WP5 8-5 To support a conclusion that there is no basis for concern or that the risk at a waste site is negligible, a list of key findings at a waste site will be prepared. 8.2 Results of Risk Screening The following sections provide a summary description of risk screening results for each site evaluated. The results for each site are summarized in a table. Risk -screening conclusions are presented for each site. A complete risk screening evaluation of the Sullivan well sites cannot be performed because the reserve pits cannot be located. The Sullivan #1, Sullivan #2, and Sullivan Strat #1 wellheads could not be located with certainty because of site erosion and thick vegeta- tion. The sites have been ecologically restored through natural processes. A ground search by foot, which required at least 8 staff hours per site, found no evidence of a drill site or signs of a reserve pit. A basis for concern exists because the fate of the reserve pit material is unknown, but the level of risk may be considered to be negligible because there is no evidence of a reserve pit or the drill site at these locations. The environment does not appear to be impacted or threatened due to reserve pit materials. Natural erosion processes of the glacial rivers and landslides have either washed the sites away or buried them in sediment. Risk may be considered negligible because the reserve pit material, if still present at the sites, is more than 30 years old and the quantity of soluble constituents is limited. It is probable that leachable contaminants have already been released and dispersed by this time and the remaining material is relatively inert. Exposure to biological receptors is not likely. No exposed mud could be found at the sites. The sites are practically inaccessible to humans because of dense vegetation and non- existent access roads. Considering these factors, the risk of exposure and adverse effects to human health and the environment is negligible. ANC1001ffiSSMPS 8-6 Section 9 Benefit -Impact Evaluation An action plan is not recommended for the Sullivan sites because the risks associated with implementing an action plan are greater than the potential risks that could be reduced through corrective action. The purpose of this evaluation is to estimate whether the benefits of implementing an action plan would be greater than the impact of implementing the plan. The general philosophy behind this evaluation is that if an action plan can be implemented to reduce an already "negligible" risk and not cause any greater problem, then such an action plan should be taken. ANCIOOI IE5B.WP5 9-1 i Section 10 Action Recommendation No further action is recommended for the Sullivan well sites. The findings of a benefit and impact evaluation estimated that the impacts of implementing an action plan would exceed the benefits of an action plan. No further action is warranted because actions implemented to reduce an already negligible risk would create more risks to human health and the environment than the no action alternative. ANC10011E5E.WP5 10-1 Section 11 Works Cited America North/Emcon. Summary of Investigations into the Need for RCRA Corrective Actions at Drill Sites 3 and 17 Reserve Pits in the Prudhoe Bay Unit --Eastern Operating Area. North Slope Borough, Alaska. 1992. Angeloni, Linda M. et al. Map and Tables Showing Preliminary Rock Geochemical Data, Port Moller, Stepovak Bay, and Simeonof Island Quadrangles, Alaska. U.S. Geological Survey Open -File Report 85-470. 1985. Arbogast, B. F. et al. Analytical Results and Sample Locality Maps of Stream -Sediment, Heavy -Mineral -Concentrate, and Rock Samples from the Port Moller, Stepovak Bay, and Simeonof Island Quadrangles, Alaska. U.S. Geological Survey Open -File Report 87-502. 1987. Arco Alaska, Inc. Crude Oil Topping Unit (COTU) Tube Bundle Sludge Containment Enclosure/Cleaning Station. Investigation Plan. December 1992. B & B. Environmental, Inc. Drill Cuttings Baseline Report. 1991. Bruns, T. R. Structure and Petroleum Potential of the Continental Margin Between Cross Sound and Icy Bay, Northern Gulf of Alaska. Menlo Park, California: U.S. Geological Survey Open -File Report 82-929. 1982. CH2M HILL. Draft. Crude Oil Topping Unit (COTU) Pad Remediation. 1992. Church, S.E. et al. Analytical Data and Sample Locality Map for Aqua -Regia Leachates of Stream Sediments Analyzed by ICP from the Port Moller, Stepovak Bay, and Simeonof Island Quadrangles, Alaska. U.S. Geological Survey Open -File Report 88-437. 1988. Cobb, Edward H. Summary of References to Mineral Occurrences (Other Than Mineral Fuels and Construction Materials) in the Bering Glacier, Icy Bay, Middleton Island, and Yakutat Quadrangles, Alaska. U.S. Geological Survey Open -File Report 79-1246. 1979. ANC10011E62MPS 11-1 Gough, L. P. et al. Element Concentrations in Soils and Other Surficial Materials of Alaska. U.S. Geological Survey Professional Paper 1458. 1988. James M. Montgomery Inc. North Slope Gravel and Soil Baseline Characterization. December 1991 Kachadoorian, Reuben. Engineering Geology Bearing on Harbor Site Selection Along the Gulf of Alaska from Point Whitshed to Cape Yakataga, Alaska. U.S. Geological Survey Trace Elements Investigations Report 642. 1963. Karlstrom, Thor N. V. Quaternary Geology of the Kenai Lowland and Glacial History of the Cook Inlet Region, Alaska. Washington: U.S. Geological Survey Professional Paper 443. 1964. Magoon, L. B. et al. Map Showing Geology, Wildcat Wells, Tertiary Plant Fossil Locali- ties, K -AR Age Dates, and Petroleum Operations, Cook Inlet Area, Alaska. U.S. Geological Survey Miscellaneous Investigations Series. 1976. Magoon, Leslie B. and George E. Claypool. Petroleum Geology of Cook Inlet Basin—An Exploration Model. Official File Number 79-548. Odum, Jack K. et al. Lithological, Geotechnical Properties Analysis, and Geophysical Log Interpretation of U.S. Geological Survey Drill Holes IC -79, 2C-80, CW 81-2, and CE 82-1, Tyonek Formation, Upper Cook Inlet Region, Alaska. U.S. Geological Survey Bulletin 1835. 1988. Petroleum Possibilities in the Yakataga District, Alaska, Assessed. U.S. Department of the Interior Information Service. May 22, 1953. Pewe, Troy L. Quaternary Geology of Alaska. U.S. Geological Survey Professional Paper 835. 1975. Plafker, G., et al. Holocene Marine Terraces and Uplift History in the Yakataga Seismic Gap Near Icy Cape, Alaska. 1980. ANC10011E62.WP5 11-2 Schmoll, Henry R. et al. Guide to Surficial Geology and Glacial Stratigraphy in the Upper Cook Inlet Basin. Anchorage, Alaska: Alaska Geological Survey. 1984. Schmoll, Henry R. and Lynn A. Yehle. Generalized Physiography and Geology of the Beluga Coal Field and Vicinity, South -Central Alaska. . Surficial Geologic Map of the Northwestern Quarter of the Tyonek A-4 Quadrangle, South -Central Alaska. U.S. Geological Survey Miscellaneous Field Study Map. 1987. Scully, David R. et al. Hydrologic Reconnaissance of the Beluga, Peters Creek, and Healy Coal Areas, Alaska. Anchorage, Alaska: U.S. Geological Survey Water -Resources Investigations 81-56. 1981. Selkregg, L. L. et at. Alaska Regional Profiles, Arctic Region. University of Alaska Arctic Environmental Information and Data Center, Anchorage, Alaska. 1975 . Alaska Regional Profiles, Southcentral Region. University of Alaska Arctic Environmental Information and Data Center, Anchorage, Alaska. 1975 Thomas and Berryhill. Reconnaissance Studies of Alaskan Beach Sands, Eastern Gulf of Alaska. U.S. Geological Survey. The United States Geological Survey in Alaska. Accomplishments During 1983. U.S. Geological Survey Circular 945. 1984. Wahrhaftig, C. Physiographic Divisions of Alaska. U.S. Geological Survey Professional Paper 482. 1965. Walker, D.A. et al. Geobotanical Atlas of the Prudhoe Bay Region, Alaska. U.S. Army Corps of Engineers Cold Regions Research and Engineering Laboratory. Hanover, New Hampshire. CRREL Report 80-14. June, 1995. Wilson, Frederic H. et al. Brief Descriptions of Mines, Prospects, and Mineral Occurrences in the Port Moller and Stepovak Bay Quadrangles, Alaska Peninsula. Anchorage, Alaska: U.S. Geological Survey. Open -File Report 88-666. 1988. ANC10011E62NP5 11-3 Wilson, Frederic H. et al. Generalized Geologic Map of the Port Moller, Stepovak Bay, and Simeonof Island Quadrangles, Alaska Peninsula, Alaska. U.S. Geological Survey Miscellaneous Field Studies Map. 1991. Yehle, et al. Preliminary Surficial Geologic Map of the Southeastern Part of the Tyonek B- 5 Quadrangle, South -Central Alaska. Reconnaissance Engineering Geology of the Yakutat Area, Alaska, With Emphasis on Evaluation of Earthquake and Other Geologic Hazards. U.S. Geological Survey Profes- sional Paper 1074. ANC100I 1E62.WP5 11-4 DEPT. OF ENVIRONMENT.%L CONSERV,&TION DIVISION OF SPILL PREVENTION AND RESPONSE 'ndus=v Preparedness mad Pirmiine Pro~rmm Ex=iota;ion. Produc:ion dc Refine=: Sec:ica ;55 Cordova St. .~nchora~e. AK 99501 JuN 1. i996 Mr. J. A. Landrum Kenai Profit Center Mana~_er Pkiili=s Petroleum Commnv Drawer 66 Kenai..z24 9961! Dear Mr. Landrum: Approval f(;r Closure - Inactive Drilling Waste Sites TONY KNOWLES. GOVERNOR ?hone ', a0'%-269-';679 Fax i 00'%-269-7649 , / .,-, -- /.~'~ w"/l' ~ ' ~ ,i .~,~ ~ a~ , 'iff File ~: 300.15.~ The Alaska Department of Environmental Conservation (ADEC'~ has evaluated your corresr)ondence, dated February. I4. 1996. requesting closure of six Phillips Petroleum Company (Phillips) disposal facilities. Surface evaluations were r)erformed at the sites in !992' ',he closure plans were delivered to ADEC bv Mr. J. S de Albuquerque and Mr. S. Freemver on February ~.f. 1996. This correspondence describes our review procedures, puts forward the De=arrment's ~mamgs. and takes action upon the closure request. ~ne six facilities were assessed by Phillips Petroleum in accordance with the .~DEC rnterim Site Assessment Guidance for [nac::ve Dritlin~ Waste Sites. June k99~. The new Alaska Solid Waste Regulations. 18 ,~XC 60. became effective January 28. 1996 and contains a chapter on inactive reserve pit closures /I8 .~AC 60.'440). The closure criteria in the new regulations ~-,,,,~. the closure .~-4,,,,'o · ~,,d,,nc,. ,_,~,.,~ .............. v ...... ~,. :n the ~991 ~-"; ~ ,, r~ ....... ' .'..nd the '~"';e',, ~'~'~ .... ¢ ~ discussion of the risk screemng assessment as required in the 1991 document. Briefly, significance of risk to local receptors is evaluated through study of contaminant release, exposure criteria, and consequence criteria. SITES CONSIDERED FOR CLOSURE Based upon field criteria from the June. 1991 iNTERIM SITE ASSESSMENT GUIDANCE FOR INACTIVE DRILLING WASTE SITES. and closure criteria specified in Alaska Solid Waste Regulations 18 AAC 60.440, the facilities listed below with.th,eir,respe?ive locations have been reviewed for closure: - . :.~ i .:., ,,. , ir. i..4. L~drum 2 Jul,.' !. 1996 .AK Peninsula - Stepovak Bay .Area Bi~ River No. A1 Ti,-o.s-q North Slope - Miklqeisen Bay Area North Staines River No. i ,q-o~ ? Cook Inlet- Trading Bay .Area Norm Tvonek State No. [ ¢ 3- Southeast AK - Icy Bay Area Sullivan No. 1 o- o.s--/ Sullivan No.~" o oa-o Sullivan Strat No. 1 ~ - ~ ~ a ~ Consideratic~n of ~he sites for ctosure approval were based on (1 ~ a review of the submitted .nac,,e drillin~ waste site assessment document listed below bv the ADEC Smil Prevention and Response ~ SP.M*,) Division and the Alaska Deparrrnent of Natural Resources - Division of Land (.&DNR-DOL) staff. (2) public r~sponse to the closure request during the the 30 day review process, and (3) site visits by ADEC and AI)NR-DOL staff to the North Statues River No. 1 site. Title: Closure Ret>orr for Phillips Pe~oleum Company Alaska Inactive Reserve Pit Assessment Program Submitting Persons: J. S. de A, lbuquerque and S. Freemver: Phillips Petroleum Covered Facilities: Above Named Facilities Location: Statewide Synopsis of Closure Procedure: Closed as is. No further action is needed for the drilling waste facilities at the referenced locations. (or) Conditionally clgsed. Further investigative action is required, as noted, for the drilling waste facilities at these locations, CLOSL'RE APPROVA.L The Departmental decision upon the request for closure submitted by Phillips Petroleum Company is to approve for closure the below-referenceddrilling waste disposal facilities, effective JuN 1. i996. and to declare the five facilities "Closed .ks Is" This decision is supported by ADNR-DOL for the sites located on State land: the decision is also supported by the Mental Health Trust Land Office of ADNR (D. Thomas.~ for the three Sullivan wells near Icy Cape. No objections or other issues were put forth bv the public during the 30 day review process. While 3 :'ulv 1. i996 'here is a basis for concern at the remote sites where drilling mud was disposed in a sensitive environment, there is no standin= water in contact with the waste, and therefore, neziimble risk. Conseauentlv, any corrective action warranted at the sites is not required by the ADEC, realizing_ :hat the impact of the corrective ac:ion wouid be mucil greater than the benefits received. The sites have revegetated, and any corre'ztive measures would impact the established plant species at Z'ie Iocations. The facilities are 'Closed As Is'. as provided under the authority of the 18 AAC 60.440 Solid Waste Regliiations. Closed As I~ Big River No. A1 North Tvonek State No. 1 Sullivan No. I Sullivan No. 2 Sullivan Strat No. 1 Closure conditions were placed on the below-named faciiirv following the site visit and closure package evaluation. These conditions must be met prior to issuance of final closure approval for the reserve pit facilirv. The decision or' the ADEC is to declare the following site "Conditionally Closed" until information required to address the conditions is provided to the Deoartment. · Conditionally Closed North Staines River No. 1 Diesel (DRO) concentrations of 4 0 and '~ 1 mo/1 were reported in ponds WA-02 and WA- 03. respectively, along the reserve pit perimeter. Field investigations revealed heavily iron- stained pond sediments in WA-02 and in other shallow ponds on the west side of the pad. Disturbance of the sediment produced an immediate sheen on the surface water. A strong diesel odor was present in the sediment and oily residues remained on the skin after handling. The iron- stained and presumably contaminated ponds were adjacent to the reserve pit. Although drilling wastes at the site appear to be properly contained within the capped reserve pit. the source of the apparent c. ontammation must be identified. Third party, reports suggest that fluids may have leaked from the well. Final closure will be granted after it is demonstrated to the ADEC that dril__l'mg._wastes within the pit are not the source of contamination and have not been adversely affected by leakage t'rom the ,,veil or from historic spills on the pad. Please provide the supplementary, information to this office. The apparent contamination has been reported to the .,DEC Contaminated Sites Section for review, as required under Article i of the rbllowing "Terms and Conditions" section. .X, lr. j..~.. Landrum 4 July 1. i996 In addition. ADNR reserves the right :o ilar&er evaluate both pad and reserve pit at the time of ~11 site closure. TE1LMS .&ND CONDITIONS All of the above closure approvals are subject to the following terms and conditions: Reserve Ht Facility Closure: The approval granted by this letter is for the inactive drilling waste reserve pit facility, onlv. as required under !8 A.AC 60.440. Closure for the pad as a whole must be coordinated berween the owner:operator and the appropriate state (ADNR, .aA3F&G. AOGCC'~. or federal (BLM) agency. Additionally. should any contamination from historic spills be found on the pad outside the drilling waste sire (reserve pit areal, notificatim needs rd be made to the A_DEC Contaminated ~ ~ Section ~269-7659) New Information: Should additional information concerning environmental conditions at the faciiirv make ff~'ther actions necessary to protect human health or the environment, the Devarrrnent reset'es the fight to require additional investigation, assessment, monitoring, or remeciiation at the facility.. If vou have any fi. axher questions, please reel flee to contact Jim Chatham ar 26%7679 of this Sincere~,, Tom C.a~v/e Program Manager TC,] rcc. £O-CLER'JCHA'I'HAMX965CLOS.-kPP CC: Stephen de Albuquerque. Phillips Petroleum. Bellaire, TX Steve Freemyer. Phillips Petroleum, Kenai AOGA..~mchorage Nancy Welch. A. DNR. Fairbanks Al Ott. ADF&G. Fairbanks Joe Saumer. ADEC. Anchorage Jim Haynes, ,&DNR..amchorage Jack Mores. Bristol Bay Native Corporation. Anchorage .. ,-o,,. ~, 9~ ~oM ,,.,,,--6,,~9~~ PHILLIPS-x~ OPERATOR: K~- ~. FARM: ~2 Sullivan STATE' Alaska , eO~N~: Y~atag~ EL~ATION FIELD: , DATE STATUS SPUD: ~-23-56 COMP~ 1-23 D ~ glacial graveI CASING: 1-2~ D 2~ glacial ~avel ~ hol~ 3/~ de~. ~ 200 · -. 1-25 D ~00 g~cial ~avel; rmg 17 3/4 hole to 3755 1/4 de~ TOTAL DE.H: ~ ~0 PRODUCING FMT: 1-26 D ~00 g~cial ~ravel, ~g INITIAL PRODUCTION: 17 3/~ hole to 375; now ~A _ 26" hole to 375' 1-27 ne~ ~. 2 ri~ .~acks to l.~vel derrick 1-28 D ~0 glacial gravel prepping to r~ 20" csg i jt necessa~ to reream; e~eriencing difficulty w/csg 1-29 D ~00 $1acial ~ravel at 55 to 75 enco~tered obst~ction ~ich prevents passage of csg; believ~ to be bur~d t~ber; c~ ream.to 375 · but c~ot ~ piPe; passed obstruction; now attempting go ~ck ~ hole ~1-30 WOC r~ lO jts 20" csg; set 363 rkb cmtd w/60C sx sloset 2% Cal. ci,~ flor~ , ~ .~t to surface 1_31 W~' 24 hrs job c°mple%ed 9 Ph ' -2-1 k~ 2, hrs nippli~ up · 2-2 gSO sdstone, drlg top cmt 355:; drilled out c~.t & res~ed drlg ~i 2-2-56 2-3 558 sd% siltstone 1~ 500 ~ tO 5 iO gas Show ~creased · ' . bbls fr wtr/hr into hole SI no pressure) inc. mud · hole; no~ ~g mud to ~crease ~ . - 2~. '603 ~ siltstone$ drlg'~d ~ ~.6 viscosity 68 waterloss 3.6 .2-4 ~ 90 sx bentonite diesel oil; sqze ~to fo~ati0n ~ 40~ loaded hole ._ ~. ~ ~th. ~ mud, s~pp~ ~r flow; 'con~. ~ud a re--ed dri~g 2-6 852 s~tstone dr!g ' .. .' 2-7 1106 silty s~dstone.1/4 deg. ~ 985 . . - 2-8 ~81 siltstone dr~ 2 d~. ~ 12~5 , 2-9 L382 sd: drl~ 2 de~. ~ !355 .'. 2 2-11 1552 co~d ldT3 to la78~ rec. 18 inches sdstone, now rn~ schlUm nren_ to ream do~; m~ ~.3 viscosity 78 -- 2'~' r~ ~15; mud ~4, viscosity ~7; attempted to ~n dipr~eter~ 2-13 .r~ ~; mud ~.l viscosity 67; coming out of hole to check rmr 2-1~ ~ 606; mud wt ll,3 viscosity 57 2-15 rTE 785 . . 2-16 rmg 905 ' ....~ , 2-18 r~ '~5' ·2.~ ~ 1320 2-21 ~ 14~ , , REMARKS. OPERATOR Phi l l ~p---~rr-~mGee FARM Sulliva~ WELL .... · LocATION' Sec. 9 (near the east quarter' corner · T. '22 S.., R. 21~., CP~i · STATE _Ala.~ ' COUNTY YakabaMa . ' ELEVATION ~ ~ ' i STATUS .. ~ DATE TOPS 2-22 rag 17 3/4 hole to 1525; ran caliper survey _2-23 ran 48 joints 13 3/8" caslng; ~xed 1217 sx 2~ calci~ chloride Casing plugged, coming out hole; will call 2-24 rec. al]_ csg joint number 12 ~plit; joints 36 and 3~ collapsed; bottom · 11 its full of cmt; will call late Fri. evening washing out conta ~minated mud '~ cmt 'g 760 2-25 mixed 63 Bentonite diesel oil; sq~d into formation '~ 400 poUnds3 4i4 seal off wtr 2-26 mixed 200 sx s!oset ~ calcium chloride) pmpd 100 sx into fo~ation sx in hole; job completed 1Ah 2-26 %~0C 2-27 WOC 24 hours 2-28 opened flowing small stream water filled hole 11 pound mud; now washing out cat lOO0' . 2-29 CO cmt to bottom makin~ s~all amount~ wtr:~buildfn~ mud wt to 12: moving' .. pipe from ,bay before r~ 17 3/~ hole - ' , 3-1 ~,OC stoppea wtr flow moving pipe from ba~ 3-2 SI 2 hours; ,.oved 40 its to rig 3-3 prepare to run' 13 3/8 casing . 3-q .rng 13 3/J. cs~ (l~ ' 3-5 ran ~6 jts 13 $/8 casing set .J 1515 c~td w/lOQ s~', sloset i5o0 lbs c~!cium chloride 1~0~ pounds benton, ita; jgb ,co~,,pletad' 7:15 ?~., 3-~-5,6; ran te~:.p. -~ .... survey; top of ~t 80' ,, - · , - 3-7 '"OC 24 hours ~ '' ' · , 3-8 mit cling ~ up to drill ahead 3-9' going in hole to aril~ out; installL~g .rubber protectors on dr~]~ pipe 3-iO& .1 1516.dr1$ 'sd.stone' ~:ud ~t i1.~ vis. ~1~. ~es~ed drlg ~ Pi'. 3.-9-56 3-12 1948 sd cutting; c #2 mud wt l!.q vis. 43 3-1~ cut 'core #2 19~8-1952., rec. 8''~ gmstone; cut core #3 1952-1958 rec. 5" sdstone;prep to DST 1943-1957 upon arrival Halliburton tstr . 3-1~ waiting arrival Haliburton personnel ~-16 ~alliburton personnel arrived ' '~-17 DgT~i 1933-1958; open 90" fair blo thro~h tst.,, rec. 90' drlg mud~ no instrument to record BHPi_core #4 2020" 2025_3~ rec. 18" siltstone . ' . I 1 hr~ rec. 30' drlg mud, !'air blo throughout, tst 13-21 i2!32 drlg sdstone&, sit, tone; c ~6 211.0-2113, rec. 3' sdstene ;!3-2~_ _ iTD 2330 sdstone .oreo_ to d:rill ahead: c #7 232~-2330, rec, 3" sdstone' ~3-2A '2ao6'sdstone & siltstone_: drl~.: DST #a 2317-.2399 tool open 1 hr., rec. '~' sli. o&gcm ~~~ Fp ? $~w ~.3n# _~t ~.=~ of ]5", · 3-25 ~498 siltstone drlg .necessary .. cut 300' off drl~ line ever~ other trio be1 faulty drum groove or line request Union 'wire ~n~ ,~atio__na~ engineers' at once; Will cease drlg until advise ~-26 TD 2559 siltst°ne; changing drlg line " 3-27 TD 2600 siltstone drlg~ chan~ed drlg line i3-28 2656 sdstone drlg ~-29. ~707 sdstone drlE; 3'1/4 deg 2662 mud wt 11 vis. 4~ $-3Q 2750 sdstone drl~: 2 ½ dee 2715: mud wt ]].2 vis. ~ . )-31 28.~ sdstone drlg; 2 degl .~ 27~6; mud wt ll.1 vis. ~ ~-1 ,2854 sdstone drlg; 3~ deg. 2825; mud wt 11.1 vis. ~4 ~C J3 · t'orm 1,9~ lOt~ 4-~~. 5,'~OI-L) ~aA~t~. .~ phillips- ~ OPERATOR: kerr-nF~"',~ FARM: ~2 Sullivan '~ STATE A~ska : COUNt: ~&~agg . ~A~ON FI ELD: - , ~TE ~. ~A~S SPUD: COMP~ ~-2-5t 2898 ~o~e ~; 3~ deg. CASING: ~-3 ~ ~s~o~e~ d~15 3 deg. ~ 2971 sds~one d~; 3 deg. TOTAL DE.H: 2952; mud ~ ~'2~ vis. ~3 PRODUCING FMT: ~5 ~ 2995 sds~e ~lg; 2 deg INITIAL PRODUCTION: 2995; mud ~ 11,2~ v[~, ~ L-A 30~A sds~one d:~ 2: de~ 30~ 2 3/~ deA'. ~0~? ~cd ~ 11.2 v~ 40 g-8 ~ 3098 sds~one; cu~ing c ~8 2-3/h de[ ~070; mud ~ 11,1 ~-9 ~ 3150 ~stone~ ~k~g'trip 3 deg 3150; mud ~ 11.2 vis 41; c ~8 3098-31( rec. 3', ~stone & sh ~-10 31~' sdstone drlg 3 deg 3065~ m~ ~ 11.~ Vis. ~ , , 4-H 3226~siltstone drlg 2~ dee 3195; mud ~ 10.9~ vis. 39 ' ~-~'] 3286 ~king trip sdstone 2~ deg 3280; mud wt 10.~, ~s. ~-13 ~3315, 2L. , de~. 3248~ drlg ahead, sandstone; ~,ud ~ 10.9, vis. 39 ~-~ 3358 2 de'_~ 3330: drl~ ahead sdston.e; mud ~ 1!.1 vis. 4-15 drlg sdstone 3400; 2 deg 3330; mud ,~ ll.l~ vis. 39 . ~-~6 r3~2 2~ del 3~S'; mud ~ ]] .~. v~. ~] , 4-17 drlA sd & si~tone 3~96' 2[ . . ~ de~ 3A15: mud ~r !t.!. vis ~-18 }5~5 ~stone & soapstone; ~rlg~ de~ 3515; mud '~'~.2, ~is. ~3 4-19 360~ silt stone drl~/2~ de$.3603;, mud ~ ll viw. 39 - ~-20 3656 silt stone dr!~: .mud ~ 11 vis 39 ~-21 37~ sil~one drlE;, ! 3/~ de~ 37~:' mud ~ 10.9. vis. 39 ~-~ 3760 sands~ne '& s~tstone; ~rlK; i 3/$ de,~ 361i; mud ~ 11. vis. 39 ' 4-23 3806 sdStone & s~ltston~: ~ t~-~:d .~. 1].~ v~ ~-~ 3859 sdstone dr~ 2 de~_ _3~:. mu~ ~ ]].2 ~.~. 39~ . ~-25 ~ ~D 3~86 sdskone;-cu~ core 38~[-3886, rec.: 2~' ~s[one: :~-26 3907 sd~ ', *' . _ cut,.mn~ core ~; c ,~10 3~3.3874, rec. 10 inches sd; c 511 rec, ~27 ~D 3909 '~; cond. hole.'to ~n DST ~6: c $~ 3~99-3909 rec. _ · ~1-3909 Dkr f~led. ~-25 )ST ~6 3878-3909 ODen 1 hr stro~ blo .air th~out, rec..30' ail ECru 'oressu ~'ete~~; circ. 3910 &-29~ = $13 3910-3918 f~l rec. rite sdstone; DST F7~77-3918 open 1 hr, rec., 5' ~ud top press~e chart ~di~tes tool opened; ~t~;L cha~ ~icates hydro- ~tatic th~out test ~k~ results ?; dr!$ ahead. . ~-30 ~9~ drlg sd; m~ wt ~.3 vis ~! %~7 sd prep to ~ DST ~8; 1~- dee 3997; ~d -~,~ ~.2 vis 5-2 4029 ~sd ~e~ to ~n electric log; DST ~8 3878-~027 cha~s ~di~te tool di REMARKS ' ' OPERkTOR ' D ' ' FARM ' WELL ....... 1 _ LOCATION STATE COUNTY . ' sd ELEVATION " STATUS · · : DATE TOPS , " · not open~ no rec. 5-3 406~ sdstone dry; mud wt 11.4 vis 39; ran electric & micro lo~s; proved unsatisfactory; will rerun after repairing logging eq2i~ent 5-4 TD 4126 sdstone; reruning lo~s; 1¼ dez ~125; mud wt 11.5 vis. 40 5-5 TD 4172 sdstone; prep to cut core//14; :~ud %~% 11.7, 'vis. 39 5-6 TD 4190 sd; cutting core #!5~ c ,~ 4172-~174, rec. 2' sdstone 1~ deg ~7!; mud ~__~.~.: ~_s. 41' ~-7 TD ~195 siltstone prep to DST,,~o,; c ~!5 ~195-~195: rec. ~' s~stone~ 5' si~tstone, rer,~ electric, micro log 5-8 TD 4195 silstone; waiting atrial .Hallibu~on ~9 · a195 ~ltstone: DST ~9 ~64-~9~; op~ 90" Mood blow thruout tst, ~ec, ~' sli. o~ cut m~; FPO SIP 15" O; drlg ~ead 5-10 ~ sdstone drY; m~ ~ ~.~ vis ~O; c ~16 ~04-~10, rec. ~' ~st~e 5-11 ~92 siltst~e: drl~: l~ ~O3 mud ~ ll.5 ~s. ~ ~5-~ ~ ~stone; ~r~;-~-~ n.5, vis. ~ 41~ 1~ de~ ~302 =~-13 TD $~37 ~stone & s~tone; m~g trip~ mud ~ ~.6~. vis. ~6 ~5-'~ ~50.5 siltstone; drlg; mud ~ ~.6, vis. ~ 5-15 a565 ~st~e & Silts~ne; drlg; =md ~ H'5, ~s. 43 5-16 ~595 ~sto~-& siltst~e; dry; mud ~ ~.7, ~s. 40;. DST ~10 o~ 1 hr. ~od blo th~ou$ test; rec. 30' drlg mud; FP 0 SIp 30" 0 5-17 T~ ~624 ~s{0ne s~ts~ne; rnK DST ~11~09-~24: c ~17 &619-~62~. ~c. ,' .,6"'extensively fract~ed sds~ne & silt stone ' ~-1~ ~TD $6~" dr~.'~stone; m~ ~ ll.7, ~s. 39; DST ~ll 4609'462~ op~ l'~ ~o~ blow throu~OUt' test~ rec. 30' sli. o~-cut ~ud; FP 0 SIP 15"~O ~-1~ TD ~723 .drlg;sd.& sh; 1~ deg ~ 4720; mud ~ 11.7, vis. ~0 . 5-20 ~D $.7~ drlg sdstcne siltstone; mud ~ ~.9, vis. ~1 ~ ~-2] ~ ~ drl~ sdstone siltstone- m~ ~ 11.9. vis. &O: 1 3/a de~ a801 5L~ TD A8as; c ~18 4835-~8~3,.rec.'6''~ sds~ne; ~w cutt~g cJre ~; mud ~5-23 ~ ~8~7 ~o~g ~ hole~w/bit; c ~19 4843-4~5, rec. 4"' sds~ne & ~ltstone . " lC ~20 4~5-~847, rec. 6" silts~ne; DST ~ ~29-~47~'op~ 1 hr..good btow. th~out test, rec. 30' dr~ mud; FP 0 SIP after 20" 0 '5-2~ TD ~68 sdstone; rng DST ~13 ~0-~68: c $21 ~853-~63. rec,~2' ~stone . c ~22 ~863-~868, rec. ? inches sdstone 5'25 ~ ~868 sd~one; rng DST ~16 ~7~8-~68; DST ~13 ~30-~68 pkr f'~l~ DST $~ ~g3-~868 pkr fail~: DST ~15 ~51-~68 okr seat fail~; m~ ~.5. vis~ A5 5-26 .~9~'~stone; drl~;mud ~ ~.5~ .~s. ~; DST ~l~ 479~-~768 open ~5" ve~ ~ ~strong flow thruout tst~ rec. 270' gas cut drlg mud; FP 0 SIP after 15" 5-27, ~930'~; drlg; mud ~ ~.~, vis. ~ · ~-28 ~68 s~stone drlg;mud weight ~.5 viscosity ~5:1/2 de~ree 4945 5-29 5007 DrlK. mud ~ ~.3. vis ~5 3/~ degree 5006 5-~O 50~ ~ stone; drl~; mud ~ ~.~, vis. ~.' 5-31 5120 adatone~ drill~g~ mud ~. ]P.A. vis. 47; 1-1/2 deg. 5081 6-1 5150 sdstone; dril~ng; mud'S. ~.2, vi~. 48; 2 deg. 5136 ~2 5206 Sdstone; drilling; mud ~. ~.~, vis. $7; l-l/2 deg. 5200; on 6-1 Core ~2~ 5138 ~8 Rec. 2' sdstone & silts~one )O · ,-o,,, ,,,~ ,o~ 4-~*-67,o,-,_, Page #3 · OPERATOR:Philliu~err- FARM: #2 Sulliv~ Alaska- ~ ~cGee STATE: " COUNt: Yakataga EL~A~ON '- FI ELD: DATE STA~S SPUD: COMP~ ~-5~ ~ 5218'; ~s¢~e, p~ep ~ CASING: . cu~ core ~2~: 1--1/2 de~ee ~ 52~8'; ~ud ~. ~.7~ vis. 57~ DST ~- ~8-5218~ open ~5 ~., good b~ow gas, ~ TOTAL DEPTH: ~5 ~ rec. ~0~ d~e ~ud~ PRODUCING FMT: 2u~' salt wtr.. chloride INITIAL PRODUCTION: cont~t 8700'p~. FF 250 to 105~ SIP 215~ ~ 15 ~. ~P 3~o~. . ~& 5239 sdstone, drY. mud ~, ~.5~ vis. ~9, core s2Z 521~- 522?, ~rec. ~'~ ~stone. ~5 5290 sdstone: dri~: mud ~, - _ ~.9, vi.s. ~ 6-6 ~' 5316, Drlg sds~ne, ~d .~, ~.9~ vis. &3 DST 18 5222-52 60", '~o~ blow, no gas, rec. ~50' heavi~ Kas cut & sliKhtly ~il- cut ,dry. mud FP ~3~ Sip 2550 ~ 15" HP 3600 . . $ , 6-? 53a9' dr!g sand ~ siltstone, 1-3/~ de~ 5330, mud 6-8 ~ 5384~ sand &' siltstone, attemoted test 531h-53~A. oacker fa~led. N°w com~g out of hole to dress packer; m~ ~. !3~ vis, ~6, 2 deE ~ 53~2 ~9 - TD 5&18 drl~. s~d & si!tstone, mud ~.. 13. vi~' DST 20 5292-538~.. 0u~ 105": good blow: Rec. 180' mud: FP ~200r SiP 350 ~ 15", ~ 3650 6-10, ~ 5aSa. drl~. silt ston®. mud ~. 13 vis. O 6-~ ~ 5557 drip. s~d ~ s2l[s~one. ~ud ~. [3.2. vis, 6-~ ~ ~6~ m~-~. 13,1, ~s. 43. 'now eutt~ c~re 6-13 TD 5620, drl~, Sdstone. 1~ de~ 5620', m. ud ~.-13, vis. ~; DST ~2'i, 557~5620, open 90" s%rong blow, d~dnishin~ slightly~. 5as-~ 4" [ec 295'~o~. & gas cut mud, FP 0-2~' SIP 850 ~ 15", ~ 3750 ~ 5699. sdstone, drlE,.m~ ~ 13, vis. ~, COre 25 5596-56, rec. 12" sd stone' & ash, 6-]5 Drilltn~ 5763. sandstone: i de~. ~ 5720. mud ~. 13.1. vis. &5. 6-16 Drill~K 58,.5~ sdstone, ~d ~. 13.3, vis. *6. . vis. ~, .- . : 6-18 ~ 5992~ drlK~ ~ston~ r~ud ~. !3.1, vis. ~, 1-1/2 de~ ~ "5872 ~19 ~ 6~59. drl~, s4s%one~ 1-1/~ ~ 60~4, mud ~..%. 13.1, vis~. ~20 ~ '6~O: dr!~: sand & siltstone, mud ~. 13. vis. . .. ,, . 6-22 TD 6224 dr!K s~d & si!tstone, n~ud ~,. 13. vis. 6-23 ) TD 6249, cut Core ~26. 6239'6229. rec. 3' s~nd & clay (?) indicatio~of h.orizon~al bedd~.g, .=d"~. 13.1. vis. ~5, 2j de~ REMARKS , OPERATOR -- LOCATION STATE COUNTY__ ELEVATI 0 N " STATUS DATE TOPS -2~-~! TI] ~29~. d~!~. sa~ ~-s~t. stone, mud :~. ~2.9. v~s. ~ 25-56 TD 62~?. drl~. sand. mud :.,~. !3. vis. ~5 6-2~ TD 6375, sand & siltstone, 3 deg. ~ 63&0, mud wt. 13, vis. && 6-27 TD 6&O5, dril]~-g sdstone & siltstone~ 2-3/& deg @ 6&O5~ mud wt. 13~ vis. &5. , _ 6-28 TD 6&33. drillin~ sdstone & siltstone, mud wt. 13. vis. , · ?-2 TD 6560. drlR. sds%one. 2-~ der 6509. mud.wt. 13.3. vis. ~6 7-3 TD 6578~ .coring 6568-6~78.-1} JER.@ ~568. mud wt. i3.2. vis. &5 7-5 TD 6~&8 drlg. sdstone & silts%one. Cut core #2?6568-6578 Rec. &" sdstone . & siltstone. NO bedding, mud wi'. 13.2, .vis. 46 ' 7-6 .TD 6670' drlE, sds%one, cut note ,,~29,-6649-66~9, Rec. 1' siltstone, mud wt. 13, vis. ~7. .. ,. , 7-8 TD 6?20 ,~ST,~.~22 6636-6689. packer failed: no~ circulatin.~;, prep. ~o lo~ 7-9 ~TD 6720 sdstone, ran electric survey & micro lo~. Pren to DST 6666-6720 mud wt. 13~2, vis. 7-10 TD' 6735 drl~. sdstone, DST #23 6666-6720, Open 60",' ~ood blo~ throu~hi~'- · '~ out test. ~ec. 180' sli. ~s cut mud. FP-O. SIP 20"-0 mud ~t. 13.3. .'.. Vis. &7 - .'7-11 TD 679A,.drlg, Sdstone, 2~ deK @ 6720. mud w+.. I3.A. vis. '&7. ' 7-12 :TD 6818, drlg, sdstone & sitt stone .. 123/A deR 8 680~. mud wt 13.3. vis..~7 ,.. ' · - ~ ~" - ~' , ·7-13 TD 6850. pre'Parin~ to bore, mud: wt. 13.3, vis. 46 7-lA TD 6890:' drl_~.. Sdstone~ cut core'S32: Rec. 3" sdstone, 1 deg ~ 68&9.~ · mud wt 13.3. vis, &8 7~1~ TD '6919, .dry, siltstone, mud wt., 13.1, vis. &8 7-17 TD 6968, corin~ siltstone, 6960-6968. l~ dee @ 6968. mud wt 13.3. vis. 7-21 TD 7OA8. drl~., siltstone. 1~ de~ @ 70A8. mud wt. 13.5. vis. 50 .. _-22 TD 7072, drlg, siltstone, 'mud wt.. 13.8, vis. 5& 20~-TD 7032~ drtg~ sdstone & siltsbone, 1~ des ~ 7007, mud~wt 13.3,-vis. 7-23 ~ 7089. drlg,~ silt. stone, mud wt, 14, vis, ~8 ' ~. 7-2&' TD 7112_. drlg, siltstone, mud wt, .lA. 'vis, 55, 7-26 ~TD 71~8,~ d'rtg., sandstone and silts6-one, mud '~t. lA.l, vis. d5.~' 7-27 TD 7179, drlE.,, siltstone 1/& deg. at 7177, mud wt. lA, vis.~ 6A. 7-28 TD 7200, drlg., sandstone & siltstone, mud wt. 14~ vis. 51. 7-29 TD 721-9~ drlg., ~sandstone & siltstone, mud wt. 14, vis. 7-30 ?D 72_~q. DrlE sd and Siltstone. Mud Wt. lA.1. Vis. 53. , 7'31 ~h ~75'5: Nnw ~n~ ~nd~.nn~?255-~65. ~,d Wt. 1A.~ V~. 53- 1 deg. ~t ?250. · ~R-1 TD 7275 DST . · .~2&. 72&9-727~, Onen 9~ min., fair blow throughout test ~as to surface 52 min. Rec. '&5' sli2htly oil and ~as cut mud. IFP 750, FFP 750, SIP 1650 in ~O min. 8-2 TD 7285; drl~. sand and siltstone. OPERATO i e~- FARM: #2 Sullivan ~ STATE: ~ COUNTY: Yakataga ' ELEVATION FI ELD: DATE STATUS SPUD= COMPL: ~-3-5( TD 7320. Preo, to DST, CASING.. Mud Wt. lA, Vis. fl 3/~ deg. , @ 7320. 8-& TD 7368. DST # 25, 72~5- '7320~ 15~' fr. ~r. O~shio~ open ~' ~n. ~ blow thro~ ~~C~NG , test, ~s to surface 57 min HNDAL ReC. 7&O'.oil and Ess aud st. ~r-~d~ Chlorides top ~d ~ttom of ftlhp &O~, ~d 82~ P~m. respectively, , ~P 750 ~P 950 SIP ~5 min. 28~ cl~bin~ HP 5250, Mud ~. ~, Vis. '50. 8-5 TD 7&17. Drlg. s~ndstone i deg. ~ 7&lS'-mud ~,. ~.l, vis. 51.. · ,~ --. .. 8-~ TD 7AKS. Dri~M sand ~d siltstone, . Mud %~eiqht l~., Vis.. 51. 8-9 TD 7522. Drl~. sandstone 3/h deg. 7501, · '" Mud ~'. ~.l, Vis. 50. Correct TD of . " '" . 8-8 to. 7~95.. · , · _ ~'~10 ~ 7553, drl~. sdstone, mhd w~, 1~', vis. 51. ~12 D ?613,~rl~sds~one,l°~ 7601, Core ,39~7603-13~ Rec.h" sdstone, mud ~13 [.:TD 7680', preparin~ ~o DST, .m~ w~. l&, vis. ~8 " ' ' on plugged, ~ec. 120~ ~.~-~ IFP 800, SIP 15". 13OO, final D~e~s & SIP ? . . , - ,~ , . , ' ' 8-15 TD 7723. drl~, siltstone, 1~ de~ ~ 7720. mud wt. ~.1, vis. ~0.. . . 8-16 ~ 7763~ drlg~ siltstone~ mud wt. ~.1, vis. 50. .... ' ~17 ~ 77 , d~lg~ siltstone~ mud wt ld~ vis. 51. ~18 ~ 7808; d~lg~ Siltston$~ 1 deg ~ 7788, Core ~dO, 778~7.793~ Rec. '&" ' ........... shale, no bedd~g,mud wt. 14.1, vis. 50. ~19[ .-~ 7862, drlK, siltstone, m~ wt. 1~ .vis. 51. ~20 TD 7898, drlg~ sdstone & siltstone. Core ~AP~ 788~7898. Rec. 6" sdstone '' and siltstone. No bedding. ! de~ ~ 7888. mud wt. lA. vis. ~21 ~ 7977, dr~ sdstone, ~ud wt. ~A~ vis'57 '~ ' . ~22 .TD. 8017~ drlg in sd .& siltstone, 1~ de~ 8015. mud ~. ~, vis, 5~ 8-23 ~ 8062 (?~ Dr~, sd, ~ud wt. 1~, vis. 52. · ..~2~ ~ 8089. drl~, 'sand & sills[one, 2~ deg ~ 8088, mud wt. 1~.1, vis. ~.5. ~25 ~ 8136, drlg, sdstone, mud ~t. 1~, vis.55. 8-26 ~-8171. drl~ s~nd, 1~ de~ ~ 8170, mud wt. lh~ vis. 61. .,vis . REMARKS . OPERATOR FARM · · LOCATION STATE , ' .WELl COUNT~ ELEVATI 0 N : , , STATUS DATE TOPS F7-56 TD'8197, Core #A2: 818~-8197: Rec. &" sand: no bedding: mud wt. 1;,: vis. 63 · 8-28 .T~ 8208. circulating, mud wt. 14. vis.~ 63 8-29 TD 82&0~ drlE. sand, core .%&3. 8211-822!, rec, 6" sdstone: mud .. vis. 6~. 8-30 ~D $2s?'. drl_~: sand: mud wt. 1L.5: vis. 69; b~ro~d 8-31 TD 8300, drl~, sand, mud zt. 15.7; vis.78 %1 ~TD 8320, d~l.~, sand a siltstone, one-l/2 de~. ~ 8~10, mud wt. 1~.7~ vi~. 9-2 TD 837~, dr!z. silt$tone~ mud ~%. 15.6, vis. 70 ' 9-3 TD 8&29, drl~, s~.nd & si!%$tone, ~.ud wt. 15.5, vis. 6?. 9-& TD 8&S&. drlr. sa~d ~ ~ilts%one. mud ~.%. 15.5. vis. 66. 9-5 TD 5.6' vis. 70. 9~ ~' 85&O, d~!~, s~ &-sil%s%one, 1/2 d,z (~ s~fiO, ~u~ ~%. 15.5~ vis. 66. p~e~in~ %o cu% oo~e ~&~. . 9-~ TD 8563, d~l~, s~nd & sil%s%one~ ~o~e ~&, ~&O-&~&5~ ~.~. !~,, siltstone beddin~ 6~ de~ees~ mud '~.. 1~.5,. yrs. 67. 9-8 ~ s607~ oi~ulatin.~, p~e~in.~ to cu{ Qo~e ~&5. mud' ~%. 1~.5: Vis.-68. ~607-~617 ~o~. 2' ~and, now ~%%in~ co-e 9-~ 8620~ ~ut ~o~e' ~&5, , . . _ · mud' w%. 1~.6~ vis. 81' .~ ' 9-10 .TD'8660, d~l~, san~s%o~e~ mud '~t. '!~.6~ vis. sol " . 9-11 TD 8687, d~l~ sil%s%one, ]/2 del ~ ~6s5, mud ~%. 1~.7, ~vis2 70 9-12 ~ ~222, d~Ig, sil%s%one., ~ud w%. ~5.~, vis. 20 ' .. '9-15 ~ 88!2: mud ~J 15,7, ~s. 67. runnin~ e-log. ~-' - 9'1~ ~ 8812, r~nin~ Schl~ diameter. ~ud ~t. 15.7. vis. ~7~ . . ~,,~. ,,~:. /~. v ~ _ . ~ .. · . .... . , · '-i - ; 76 OPERATOR: . FARM: ~ STATE: ~ ~OU NTY: ELEVATION . FI ELD: DATE STATUS SPUD: COMPI · /~-5L5~ T~ ~35//~~. ~_8~.[;~//~t-~. CASING: ~ ,,~. x~. G ~. ~ TOTAL DE,H: /~-4 r~ ~~ ~. ~. PRODUCING FMT: ~ "~. /~. ~ ~,. /. C. ' INITIAL PRODUCTION: -. ~'' .. . - - . .. . ' . ~ ~~. . , · ) ~ · zmzt m.~ ....... 9~u~, ~ ~;;~. ~.~...' ~ e~su' ~ ~.z~/J;. ~. ..... ~ ~'~ ~-~, ~,,~ REMARKS , OPERATOR. FARM .LOCATION WELL STATE . COUNTY ELEVATION STATUS DATE TOPS -' ,~'-~ T~. ~'~.' ,~,.~.,. ~,.,,..,..~.,.~_,~,,,., .~,.,.,.Z.,,.~. /~ ~. ~/~, ~ ~, 0 0 -- .,~. ~.~.~. . , , , , I1,1~ ~~ ~~ ? ~" ~,~ ~ /w ~ ~ N,. ... , . -- . ~~ ~ ~ , ~ . ~. ~. + ~ ~~ ~~~ ~ . . ~ ~, '~- ~-. ~ ~' ~,~ ~". ............................. , . ~ , ~. ~ '.,~' ' I. .orm 1795 IOM 4.~4---/1566.D STATE: COUNTY: ELEVATION FI ELD: .- DATE STATUS SPUD-' COMPL= ,fl, q-.5'G 7'.~ cl p-5'.-'e'. ,.._0-.-,., -,2~'~ CASING; //-,,.~O ("'-~,.~ ~-~'.~. l,¢_//J ~,,~'~.,' TOTAL DEPTH: I~-I T',J~ ~2_.4-_~. l,q'~ e~ff~.,-,~-e, ~ PRODUCING FMT: .,,~_~.jve.~e~ ~ ~ ~,'. o INITIAL PRODUCTION: -- .... ~,- ..... ~ · - - (.-. v~ -- 2~. ~~,,.P,,~. ~..~ ~~, ~ t/~ ~_~~-~.~ . , ' F ' ~: ¢ · ~~ ~ ~, / ~.~~ ~~.~ '~.:~ v ~ ~~_ ~,- -- ~ ~ , , ". ~ -' ,, ' ~ ~t~.. · OU~,~ --~ -.. - . , ' , ~J REMARKS , OPERATOR FARM · LOCATION _WELL , STATE COU N'i'Y_~ ELEVATI 0 N STATUS DATE L TOPS ~ 'z ~' ,,~ ,,,4~. ~,~. 1t, .~,.~,u. /.2 -~ T~ ~ 9~ ~ ~? /,~. ~, ~.~:~, ~ . .~,, - ,, ~,,' -. ~ , - -- _ , , ~ - ~,,~ . ..~.. IV. ~ ~,~ zo. ~ ~ ',~' - . . ~,~ ~ .~ , --_ .. ' d- - , d ' ~ OPERATOR: ~.. FARM: ~ ~~ STATE: . COU N~' EL~ATION FI ELD: DATE STATUS SPUD: COMPb . f-~-~ ~. ~O. ~ ~ ~ ~~. CASING: . 1-I~ T~ /0 ~. ~.,~. TOTAL DE.H: ~d~~.. ~ ~ /0~7~', PRODUCING FMT: ~,~_ ~, /~, ~. ~/~, ~/ INITIAL PRODUCTION: . _~ _ ~ · ~ - . . _ ~ ~ . · ~..~..~: ~. ~. ~, , . . . . . -. ~~ , , ~, ~ ~. /~, ~. ~. ~. .... . REMARKS OPERATOR FARM · LOCATION STATE _WELL COUNTY ELEVATION .. STATUS DATE TOPS ~-~'! o/._.,.,, b, ~','.~ . 6~,_~. ~,, . ~]~z~. :~,~,, ~ ~. /~. ~. ~. ~ q. - 7 · , .,. . ......... . . . - . - . ~ , D STATE: COUNTY: ELEVATION FI ELD: DATE STATUS SPUD: COMPI~ $-J'-.F7 ~zP~ ~,,,,.., ,:~'7 J_~. CASING: · l~..'~,~./.~J ~,~ ~~..~ TOTAL DE'H: ~~ ~..~ ~ PRODUCING FMT: ~ INITIAL PRODUCTION: - ~~- .~:;~.,:~-4 ~ ~ ~, ' ' / , 'vd - ' U / ' , . . . . , REMARKS OPERATOR FARM .LOCATION, WELt STATE COUNTI~ No. 2 Sullivan Core Sixty-five cores were attempted Lu the drilling of ~y2 Sullivan. Twenty- three cores were taken for structural information, and ~2 cores w~re taken in the evaluation of sh~-s. Analysis was z~an on 26 cores. In all, ~91 feet were cored and 162 feet recovered. The average interval attempted ..:~s 7! feet, ~d the average recove~ was 2½ feet or 33-1/3%. In the 2 core analyses, the porosities were generally low, the water saturations high, and the permeabilities ranged from less than one md. to 17 md. Data obtained from the cores are listed below. A n a i y~. s i s No. Depth Recovery~ . Purpose Poros'it~- Perm. wtr.sat. L~itholo~v 1473-78 1' 6" Show . . Sandstone- lt. gry, fn. grr~ ang., tite, frac. 2 1948-52 8" ~uow. 29% 3.15 '57% Sandstone , lt. gry, pr. st~ sl. mic., ang. to s-ang., silt to c. grn., ashy, sl. glauc., fl. 1952-57 5' Show 2020-25 1' 6" Show 2.25 .oo% Sandstone as ~ 2 w/o fl. Sandstone -lt. g~, fn. grz sl. mic., tite, ~dy sts. 5 2066-74 ~' Show 22% 12 Sandstone- lt. gry, pr. st( sl. mic., glauc., tite, ang. to s-ang.: silt to c. gm. 6 2110-16 3" Sh ow 10.7 % 2.2 Sandstone- lt. gr~y: pr. stc ang. to s-ang., silt to c. ~ 7 232&-30 3" ShOw Sandstone - med. gry, sty t~ f. gm., tite, frac. 8 3098-3103 2" Show Sandstone - med. gry, tite, sty, w/gry, sticky sh. 9 3881-86 2' 8how 6% -1 Sandstone- wht, S&P, fn-me~ grn, tite, w/feld, mics~. 10 38 93-94 10" Show Sandstone - wht~ fn-med., tite, .ang., w/calcite veins No. A n a 1 ~v s i s Dept~ Hecove~r~v Purpose Porosity Pe~. Wtr. Sat. 11 3894-99 3' Show 11% -1 12 3899-3909 3' ~ow 5% -1 13 3910-18 8' Show 14 &172-74 2' Show 6% 17 91% 15 4185-95 9' Show 6.1% -1 77% 16 ~204-10 4' Show 3% -1 17 4619-24 6,. Show 18 483 5-43 6" Show 19 4843-45 ~.. Show ~% -1 20 4S4~-47 6, Show 21 4853-63 2, SD0w 1.4 22 4863-68 1' 6" Show' 6.2% 17 23 5138-~8 2' Show 2.7% -1 24 5218-£7 l, 2" Show 7% 1.05 36% Lithotogy sandstone- ~tt, S&P, as Sandstone - wht, S&P, as above. Sandstone -lt. gry, fn-med, tite, ang, mic, 50° bed. Sandstone - lt. gry, sty to fn, tite, mic, odor, bi. gas Sandstone - 3.7' lt. gry, st~- to fn. grn, tite mic, w/stain, b].. gas; 5.3' siltstone - dk gry, sdy, mic, w/ZO© bed. Sandstone - lt. gr-y, sty to fn. grn, tite, mic, w/calcit Sandstone -med gry, sty to fn. gm, tite, mic, w/dk gry, sdy silt stone. Sandstone - gry, sty to reed grn, mic: friab, bi. gas. Sm%dstone - gry, sty to reed grn, m~ic, tite: bi. gas, w/ gry-brn siltstone. Siltstone - dk: gry-brn. Sandstone - gry~ stn'd, pr. st~d~ fn-c grn, ang, hrd, tite. Sandstone - g~: w/stn, pr. st~d~ fn-c, ang, si por. Siltstone - 6" dk gry. Sandstone -18" lb. gr~-~ fn. grn, ang, tite~ mic, 60© be~ Sandstone - %.b~t, c. grn, tite, ang, .SkP-, w/fn: lt. gry sd. -25- No, An a 1 y s i s Depth Recovery Purpose _Porosity Pen~. Wtr. Sat. Litholog-y 25 5596-5606 1' Show 8.~2% 26 6239-49 3' Bedding 27 6509-19 1. ~', Bedding 0.87% Sandstone - wht, ~&P, ang, med grn, friab, ashy. Sandstone -med. gry, v fn, tite, w/clay matrix, 45° bec Sandstone - med. gry~ 'sty t¢ fn. grn, tite, mic,. calc, ~5° bed. 28 6568-78 &" Bedding Siltstone - d~k gry, sdy, mic, no bed. 29 6649-59 1' Bedding Siltstone - dk gry, mic, sdy, w/clay. 30 6670-79 2' Show 7.5% 31 6679-89 8' Show 7% 15.1 Sandstone- lt. gry, pr. stud, sty to reed grn, tite: mdc, sty. Sandstone - lt. gry~ pr. st' d, sty to med grn, mic, tite, friab. 32 6851-58 3" Show Sandstone - lt. gry, sty to fn, mic, tite, 33 6960-66 1' Bedding Siltstone - dk gry, c. grn, mic. 3& 6966-68 10" Bedding Siltstone - as ~ 33. 35 7255-65 '7' Show '18% 65% Sandstone- wht, S&P: pr. std, v. fn to c., s-ang to ang, friab, mic. 36 7265-75 3' Show ~ °'~ ~7~ 7'~g Sandstone - wht, S&P, pr. std, v. fn to c., s-ang to ang, ashy: £riab, mic. 37 7275-85 10" Show Sandstone - lt. gry, pr. st'd, v. fn to c.~ s- ang to ang, caic, tite, mic 38 746~+-69 1' Bedding 3" Sandstone -med gry, fn, tite, mdc; 6" siltstone- dk gry,. sdy, mic; 3" sandst g~y, thinly laminated, sty to v. fn grn, mic, tite. An a 1 y~ s i s No. Depth Recovery Purp0s~ Poros!t:i Perm. Wtr. Sat. 39 7603-13 4" Show 40 7788-93 41 7888-98 6" Bed~ 6" Show Lithology :. Sandstone - reed 'g~, fn, mic, calc, w/calcite veins. Shale- soft, sty, no bed.- Sandstone - wht, fn-med grn, pr. st'd, ashy, calc, w/silt 42 8187-97 ~. b-~how Sandstone - reed gry, fn, friab, sty. 8211-21 6" ~hOW Sandstone -lt. gry, v. fn grn, mic, ashy, friab to hrd. 8540-45 l. Bedding Siltstone - med-dk gry, sdy: mic, 65° bed. 8607-17 2' SHow 28% 80% Sandstone -lt. gry, pr. st~ sty to c. grn, s-ang to ang, stn, calc, friab, odor. 46 8617-27 47 '9020-27 5' 3" Show Bedding Sandstone -lt. gry, pr. std sty to c. grn, s-ang to ang, friab, stn, odor. Siltstone - dk gry, sdy, w/ pyrite. 918 2-92 4' Bedding Siltstone - med dk, sdy. 49 9427-37 6" Bedding Sandstone- reed gry: v. £n, tite, sl. calc, w/siltstone. 50 9667-77 3' Bedding Sandstone - med gry, fn, tit calc,-w/siltstone. 51 9809-18 5' Bedding Sandstone - med gry,-fn, mic sty, fair 45° bed. 52 9886-95 2' Bedding Sandstone - dk gry, .shy~ p~ glauc, 53 9912'17 ' 0 54 9929-34 0 55 994?-53 0 -27- An a 1 y s i s ~0. Depth Recove~ ~rpose Porosity Perm. Wtr. Sat. Lithology 56 10042-49 7~ Bedding Siltstone - med gry, mic, sdy, calc. 57 10107-17 .9' 6" Bedding Siltstone - reed gry, mic, sdy, calc, faint 50°-60° bed 58 10182-89 6' 59 10~15-20 3' Bedding Bedding Siltstone - dk, gry, shy, sl glauc, no bed. Silt stone - dk gry, sdy, w/ quartz pebbles. 60 10~72-82 6, SnOW Conglomerate - 3' gry, sty t 1" grns, ashy, qtz. pebs, ig. frags; siltstone- 3' gry, calc, w/sd, 50°-60° bed 61 105264-32 ~+' Sho~ Sandstone -~gry, sty, congl, pr. std, mic, qtz. pebs. 62 10633-39 1, Siltstone - s~;, gry, ashy, w/qt z. frags. 63 10826-~l 2' 6" Show 13% -1 Sandstone- lt. gry, S&P, f~ reed grn, glauc, mic, s tn. 6& 11019-32 ~+, 6" Show 3% Sandstone - lt. gry, to reed grn, v. ashy, sl. glauc. 65 11186-96 &, 6,' Show 9% -1 Sandstone -lt. gry, S&P, fr med grn,. ang~ tite~- v. ashy:
