00002Q
PRELIMINARY INVESTIGATION REPORT ANTRIM IRON WORKS SITE
prepared by Environmental and Safety Designs, Inc. and Soil & Material Engineers, Inc.
April, 1985
EPA Region 5 Records Ctr.
209090 TABLE OF CONTENTS TITLE PAGE
1. 0 Introduction 1-1
2.0 On Site Preliminary Remedial Investigations 2-1 2 .1 Monitor Well Installments 2-1 2.2 Groundwater Flow Direction Survey 2-3 2.3 Site Mapping 2-3 2.4 On Site Sampling and Analysis 2-11 3.0 Off Site Preliminary Remedial Investigations 3-1 3 .1 Water Well Inventory 3-1 3.2 Off Site Sampling and Analysis 3-7 4.0 Hydrogeologic Conditions 4-1 4.1 Hydrogeologic Condition On Site 4-1 4.2 Hydrogeologic Condition Off Site 4-2 5.0 Contaminant Identification 5-1 5.1 Historical Data Associated With Tar Lake 5-1 5.2 Discussion of Analytical Data 5-3 6.0 Summary 6-1 6.1 Site Definition 6-1 6.2 On Site Groundwater Flow 6-1 6.3 Regional Groundwater Flow 6-2 6.4 Contaminant Identification 6-2 6.5 Contaminant Plume Identification 6-2
LIST OF TABLES TITLE PAGE
2-1 Measurement of Groundwater Levels 2-4 2-2 Local Groundwater Elevation Data 2-5 2-3 Trace Metal Analyses On Site Monitor Wells 2-1 3-1 Regional Inventory of Private Water Wells 3-2 6 3-3 3-2 Local Groundwater Elevation Data 3-6 3-3 Mancelona City Wells Data 3-5 3-4 City Well Boring Logs 3-7 3-5 Total Groundwater Pumpage 3-8 3-6 Trace Metal Analytical Results Off Site Wells 3 3-7 Iron Concentrations in Private Wells 3-10 LIST OF FIGURES
TITLE PAGE
2-1 Monitor Well Location Plan 2-2 2-2 Water Table Elevation Map 2-6 2-3 Areas Photographed and Mapped 2-8 2-4 1938 and 1984 Boundaries of Tar Lake 2-9 2-5 Tar Lake Site Plan 2-10 3-1 Regional Water Well Inventory 3-4
LIST OF APPENDICES
APPENDIX A - Site History and Description APPENDIX B - Borings Logs for Monitor Wells APPENDIX C - GC/MS Library Scan Data On Site Wells APPENDIX D - GC/MS Library Scan Data Off Site Wells
ii 1.0 Introduction
The following is a report of data obtained during an investigation of the Antrim Iron Works Site in Antrim County, Michigan (Tar Lake). The investigation was conducted preliminary to a Remedial Investigation/Feaslbriity jStu^y__(j_l/Pjn of the site^ in order to obtain information needed for the preparation of the RI/FSworkplan.
The investigation was conducted by Environmental & Safety Designs, Inc., (EnSafe) Memphis, TN and Soil & Materials Engineers, Inc., (SM£) Cincinnati, OH. Project Manager for EnSafe is Phillip G. Coop. Project Manager for SME is Fred Erdmann who is also Project Hydrogeologist.
The goals of the Investigation were: - to define the "site" more specifically; »•• . - to determine the direction of groundwater flow on the site; - to determine the direction of regional groundwater flow; - to determine the 'nature of the contaminant(s), if any, discharged into groundwater; and, - to make a preliminary determination of the dimensions of the contaminant plume, if any.
The site was subjected to releases of wood distillation wastes from 1910 to 1944. Appendix A of this report is a summary of historical information on the site. This appendix should be reviewed by readers unfamiliar with the site. The summary was prepared from data obtained from the Environmental Protection Agency, Region V; Michigan Department of Natural Resources (MDNR); Michigan Department of Public Health, District Office 3; Mancelona Public Library; interviews with retired employees of the Antrim Iron Works Company; and interviews with residents of Antrim County.
Appendix B contains boring logs for all borings to date on the site.
1-1 Appendices C & D contain photocopies of analytical data obtained during the investigation.
1-2 2.0 ON-SITE PRELIMINARY REMEDIAL INVESTIGATIONS
2.1 Monitor Well Installments
F,oiar exploratory borings were drilled within the fenced area at the Antrim IronWorks site during October, 19TT4~;Soil—samples were taken using a 2-inch O.D. split spoon sampler at 5-foot intervals as drilling proceeded with a hollow stem auger drill rig. All borings were converted to monitor wells upon completion. Locations for these borings were selected in coordination with EPA, Region V, and MDNR.
The borings were numbered 6 through 9, sequential to the original monitor wells and borings installed in 1982 by the USEPA PIT team. (Note: Boring 12 was not developed into a well by the PIT team.) As shown on the Monitor Well Location Plan, Figure 2-1, boring 6 was drilled along the north fenceline, 150 feet east of the northwest corner. Boring 7 was drilled along the west fenceline, 200 feet south of the northwest corner. Boring 8 was drilled along the south fenceline, 300 feet east of the southwest corner. Each of these borings was drilled to 5 feet below the groundwater table, and a 7-foot long stainless steel wire wrap well screen (No. 10 slot) installed so that it was positioned 5 feet below the groundwater table and 2 feet above it. Boring 9 was drilled as an offset to FIT boring No. 4, which has been vandalized and backfilled with trash. Boring 9 was advanced to 60 feet below the groundwater table to investigate subsurface condition in the aquifer adjacent to Tar Lake. Upon reaching a total depth of 101 feet (elevation 992.9), the auger was withdrawn to 45 feet and a well screen was set at the groundwater table in the manner previously described. The sand formation below the screen in monitor well 9 collapsed immediately as the auger was withdrawn from the borehole.
Two-inch diameter galvanized steel well casing was used above the well screen. These materials were washed inside and out with detergent before delivery to the site, then steam-cleaned on site
2-1 LEGEND " •."
• Monitor Well Drilled By S&ME, 1984
O Monitor Well Drilled By U.S.EPA FIT Team, 1982
7 •
8
i 10 f Ob
FIGURE 2-1
MONITOR WELL LOCATION PLAN
Scale: 1 inch = 400 feet immediately prior to installation. All of the well casings stick about 3 feet above ground surface and are protected by steel guard pipes, equipped with locking caps. Boring logs are included in Appendix B for boring Nos. 1 through 9. (Note: Logs for borings 1 through 5 were obtained from MDNR.)
After installation, each monitor well was developed by a combination of bailing and pumping. A bladder pump was used to remove water and suspended sediment from the wells. Because the well screens were set so shallow, conventional well development methods such as surging could not be employed.
2.2 Groundwater Flow Direction Survey Surveys were conducted to establish the top of inner casing elevations for every operational monitor well at the Antrim Iron Works site. Depth to groundwater from the top of casing was measured with an electronic water level indicator. This depth is subtracted from the top of casing elevation to yield the groundwater elevation, as shown on Table 2-1. A summary of groundwater elevation observations measured during the Fall, 1984 field program is presented in Table 2-2.
Groundwater elevation data collected on November 7, 1984, was contoured to produce the s'f.e water table elevation map, presented on Figure 2-2. This shows a groundwater flow direction toward the northwest, except for a more northerly component on the eastern side of the site, starting near monitor well 3.
2.3 Site Mapping An aerial photographic mission at the project site was conducted ^ , . • • - on May 10, 1984, producing a set of color stereo contact proof "prints of the site area. Vertical and horizontal controls were established by ground surveys conducted on June 8, 1984. The Vertical control is USGS Datum from BM 172-GAP 1954 1093. Vertical control data on site was obtained using Wild NA-2 level with an error of 1/100,000. The horizontal control was obtained using Wild T-2 with DI-3 distomat, with a closure error of
2-3 TABLE 2-1 MEASUREMENT OF GROUNDWATER LEVELS
Job Number 024-84-170 Oat* November 7. 1984
Owner Gulf + Western Mfg. Co. By F. W. Erdmann Antrium Iron Works Site Method of Electric W.L. Indicator Location Measurement
Boring Retarcnoa Elevation Depth to Water Number Tim* Point of Reference Water Elevation Notee *
MW-1 10:19 AM Top PVC 1089.81 35.81 1054.00 2.5 MW-3 10:33 Top PVC 1102.74 51.36 1051.38 3.0 MW-5 10:26 Top PVC 1090.54 37.25 1053.29 1.2 I«W-6 10:43 Top Galv. 1123.47 74.95 1048.52 3.2 MW-7 10:48 Top Galv. 1120.16 72.52 1047.64 2.8 MW-8 10:55 Top Galv. 1118.46 66.29 1052.17 3.0 MW-9 11:03 Top Galv. 1096.82 43.50 1053.32 2.6
*Casing stickup above ground surface SOIL A MATERIAL ENGINEERS, INC. Cincinnati, Ohio
2-4 TABLE 2-2
ANTRIM IRON WORKS SITE, MICHIGAN LOCAL GROUNDWATER ELEVATION DATA
MW-1 MW-3 MW-5 MW-6 MW-7 MW-8 MW-9
Top of Casing Elev. 1089. 81 1102 .74 1090.54 1123 .47 1120.16 1118.46 1096.82
DATE
10/9/84 1054.03 1051 .44 1053.33 1047.76
10/10/84 1054.02 1051 .43 1053.32 1048 .58 1047.78 - 10/11/84 - - - 1048 .62 1047.77 1052.29 -
10/12/84 1054. 03 1051 .41 1C53.32 1048 .60 1047. 75 1052.28 -
11/5/84 1054.01 1051 .42 1053.33 1048 .51 1047. 64 1052.21 1053.36 11/7/84 1054.00 1051 .38 1053.29 1048 .52 1047. 64 1052.17 1053.32 LEGEND
• Monitor Well Drilled By S&.ME, 1984
O Monitor Well Drilled By U.S.EPA FIT Team, 1982
Groundwater Elevation Contour
FIGURE 2-2
WATER TABLE ELEVATION MAP Date: Nov. 7, 1984 Scale: 1 inch - 400 feet Note: Datum is Mean Sea Level 1/18,000. The horizontal coordinates used the NW corner of Section 29, T29N, R6W as a base of 4000.00 north and 3000.00 east.
Data from the stereo contact prints and ground control surveys were used to prepare two maps :/Tl)/ an orthophoto fcopograph.ic »»* p covering a 225"~acrre area, at a scale of 1" • 100' , with two foot contours,and /Y2),anorthophoto Without topographic lines. 'Figure 2-3 shows approximate boundaries of the area covered by the aerial photographic mission, and the subsequent area topographically mapped. (Note: Topographic mapping beyond the area already mapped will require additional ground control surveying.)
A search for historical information with regard to Tar Lake resulted in receipt from the National Archives of stereo black and white contact prints of the area, obtained from an aerial mapping mission on August 4, 1938. Information obtained from the Mancelona Area Centennial Commission indicates that 1937 (sic) was a "good year productionwise." Therefore the 1938 map provides vital information on the company's activities while in production. A topographic map on a scale of 1" » 100', with 5 foot contours was prepared from the 1938 stereo prints. Since control data for 1938 is not available, certain controls (horizontal and vertical) from the 1984 ground control survey were used to prepare this map. Although use of 1984 control data introduces an error, the map is useful in showing: a change in the dimensions of Tar Lake between 1938 and 1984, the location of buildings and roads used by Antrim Iron Works, and topographic alterations at the site since 1938.
Figure 2-4 is a map of the site prepared by overlaying the 1938 data on the 1984 map. Figure 2-5 was similarly prepared and shows the location of monitor wells with respect to 1938 buildings.
2-7 00
MAPPED AREA I PHOTOGRAPHED AREA
FIGURE 2-3 AREAS PHOTOGRAPHED AND MAPPED
VICINITY OF TAR LAKE
In addition to the maps described above, the following aerial photographs were obtained from a search of the National Archives, the NASA Satellite Photography Center, and the USDA.
-- April 20, 1981 stereo infrared color photographs; — July 16, 1973 stereo black and white photographs; — October 5, 1963 stereo black and white photographs; and, -- September 28, 1952 stereo black and white photographs.
These photographs have not been subjected to formal photo interpretation; however, a cursory examination indicates that the substantial reduction in the size of Tar Lake between 1938 and 1984 (as shown in Figure 2-4) occurred primarily between 1952 and 1963, with amore_ gradual reduction in the intervals 1963-1973 and 1973-1984. . __ — - - •
A USGS 15 minute topographic quadrangle map (Mancelona Quadrangle) was also obtained. The map was prepared in 1956 based on 1954 aerial photogrammetry and is now out of print.
2<4 On-Site Sampling and A limited sampling/analysis program was conducted on site with the goal of identifying the nature of the contaminant (s ), if any, impacting the on site monitor wells. Monitor wells 18 and 19 were selected for intensive analysis on the assumption that well 19 is clearly downgradient from Tar Lake itself, and that well 18 may be impacted by the now closed Mancelona landfill. Both wells exhibit the "phenolic" odor characteristic of Tar Lake.
The potential chemical contaminants resulting from releases of wood distillation wastes are highly variable. Previous analytical efforts on site provided little guidance in selecting analytical parameters. (Note: Section 5 . 0 of this report details historical analytical data from the site.) Therefore, "library scans" by GC/MS analytical technology were selected as an appropriate protocol. Pre-cleaned (Compuchem ' SampleSaver ' ) containers in which appropriate preservative agents had been
2-11 placed by the laboratory were used. The bailer employed in sampling was cleaned with a commercial detergent, containing decanoic acid derivatives and rinsed with distilled water between samples. For both wells, samples were collected for Volatile Organics, Acid Extractables, and Base/Neutral Extractables. (Full details of the sampling procedure, times/dates, and chain of custody records are maintained in field notebooks.) The laboratory was requested to perform library scans of each fraction and to identify up to 15 peaks representing more than 25% of the internal standard. Copies of the resulting laboratory reports are contained in Appendix C and a£e summarized below. Also included in Appendix C are the Reconstructed Ion Chromatograms (RIO for each sample. The RIC plots are analogous to a gas chromatogram where a peak indicates that a compound was detected at a specified retention time (even though this peak may not have been identified due to poor resolution, absence from the library or for other reasons).
Monitor Well »8; Volatile Organics: No peaks were identified. The RIC shows no major peaks. Acid Extractablesi One peak was identified as Hexadecanoic acid or similar compound, at a concentration of 15 ng/1• This compound is not unexpected as hexadecanoic acid was present in the detergent uaed to clean the bailer. The RIC shows no other major peaks. Base/Neutral Extractables: Two peaks are shown on the laboratory report. l-(2-butoxythoxy)-ethanol, or similar compound, is
tentatively identified at 27 Mg/1. The jrepgrt _-_alsQ__lnd_icates another peak present at 45 ug/1, which the laboratprj^was unable to identify. The former is a plastizer frequently found in GC/MS ""results as a contaminant introduced by contact with plastics (such as injection septa). The later compound is coded as "unknown, not in NBS library". This pattern continues on other sa mp1e s, in that the computerized library apparently does no t contain many of the compounds shown as peaks. The base/neutral RIC shows no other major peaks.
2-12 Monitor Well »9 Volatile Organicsi No peaks were identified. The RIC shows no major unidentified peaks. Acid Extractables: No peaks were identified. The RIC shows no major unidentified peaks. Base/Neutral Extractables: Two peaks are indicated on the laboratory report, both marked "unknown, not in NBS library." The RIC shows no other major peaks.
Historical data on Tar Lake indicated that "phenols" were present in groundwater in the area. Because^f poor detection limits and precision associated with GC/MS determinations of phenols, additional samples were taken (from all on pita monitor walla) _____ —.yy* •"-" K:=-- for analysis for phenols byTHigh Pressure Liquid Chromatography (HPLC). (Note: The procedujrfr*employed was taken from: Realini-/^ P.A. , "Determination of Priority Pollutant Phenols in Water by HPLC", Journal of Chromatographic Science, vol. 19, March, 1981.)
The procedure is designed to quantify, with 90% recovery, chlorinated and nitrated phenols as well as phenol itself. The r~— • ' ' ~/ ~~ laboratory reported /no priority pollutant phenols /present above 0.05 mg/j^ Verbal communication with tfie laboratory,however, established that the HPLC produced other peaks although none correlated to priority pollutant phenols. », Trace metal analyses were also performed on groundwater samples taken from the on site wells. Table 2-3 is a summary of the results of these tests. No trace metals other than iron were detected.
All samples obtained from on site monitor wells exhibited strong odor. Formal odor threshold values were not determined. However informalevaluations performed on site indicated odor threshold values in the range of 300 to 500 are probable.
2-13 TABLE 2-3 TRACE METAL ANALYSES ON SITE MONITOR HELLS TAR LAKE MW-1 MW-3 MW-5 MW-6 MM-7 MW-8 MW-9 ARSENIC _____ <0.01 <0.01
BARIUM _____ <0.5 CADMIUM <0.1 <0.1 - <0.1 <0.1 <0.1 <0.1 CHROMIUM _____ LEAD <0.5 <0.5 - <0.5 <0.5 <0.5 <0.5 MERCURY _____ <0.002 <0.002 SELENIUM _____ SILVER _____ IRON 1.7 0.67 - 6.9 2.6 6.9 NOTES: ALL UNITS ARE mg/1. - - NOT ANALYZED 2-14 3.0 OFF-SITE PRELIMINARY REMEDIAL INVESTIGATIONS 3.1 Mater Well Inventory *" * ^x _An inventory of \46 private water wells; was conducted in the region west and northwest of the Antrim Iron works site, where "chemical water" was reported. The survey included all known water wells within the zone affected by "chemical water," plus a number of wells loca_ted both north and south of the auapected contaminant plume. Each well surveyed was designated PW for t. — _^^ private well and assigned a sequential inventory number. Where possible, the original driller's log was obtained from the District Health Office in Bellaire, MI and correlated with the name of the present home owner. These home owners, or neighbors of owners, were interviewed to ascertain the reported quality of groundwater at each private well. Water samples were tested for field conductivity and pH at selected locations. A summary of the data collected during this survey is presented on Table 3-1. The map entitled "Regional Water Well Inventory," Figure 3-1, shows the location of each water well identified during the inventory. This _map_also shows the location of Mancelona City water supply wells (CW for City wells), the location of Gulf+Western Manufacturing Company monitor wells (GW for Gulf+Western wells), and the location of monitor wells drilled around Tar Lake (MW for monitor wells). Wells identified in the inventory are shown color coded on Figure 3-1 to indicate whether the owner reported the water to be "good water" or "chemical water." During the course of this study, groundwater depth measurements were taken in selected private wells. These were usually taken in 4-inch wells that were not in regular use at the time of the survey. A precise elevation control survey was subsequently conducted to establish the elevation of each casing head, with respect to the mean sea level datum. Groundwater elevations were similarly established in the_G_ulf+Weatern wells JGW) and monitor wells around Tar Lake (MW). Off site groundwater elevation data 3-1 TABLE 3-1 ANTRIM IRON WORKS SITE, MICHIGAN REGIONAL INVENTORY OF PRIVATE WATER WELLS MAP LOCA- KAMI OF CURRENT WELL WELL DATE ORIGINAL^ STATIC '"FIELD CON- FIELD DATE OWNER'S TION ooor OWKEF. OR TENANT DIAMETER DEPTH (1) DRIl.I.m (1) / VATER LEVEI,, DUCTIVITY (2) PH (2) MEASURED REMARKS PW-la *t>«ke Ltaber 2" , 25 yrs. (+) 350 7.3 11/6/84 Bad water, high iron PW-lb Moefce Lwber it" 94 ft.(D) 10/73 72 ft. - - Bad water PW-: Daw Ho-tan Residence 4" 84 ft.(D) 4/83 67 ft. 435 6.8 11/6/84 Bad water; odor and iron stains PW-3 Hc-k«h Residence 2" 77 ft.(O) 1979 320 7.4 10/9/84 Good water PW-, V«s*v Residence 2" 70 ft.(D) 1979 - - - Good water PV-5 Spike Folker Residence 2" 70 ft.(D) 1979 320 6.8 10/9/84 Good water PW-o Dale Farrier Residence 2" 70 ft.(D) 1979 315 7.2 10/9/84 Good water PW-7 WKvitrjcr-vane Windows, Inc. 4" 124 ft.(D) 11/76 96 ft. 550 7.2 11/7/84 Good water PV-8 Ar.tTiu Hachine Prtxlucts 4" ? 7 610 6.7 10/11/84 Good water PV-O S;4ney Riddle Residence 4" 198 ft.(O) i 460 7.2 11/7/84 Bad water PW-10 G*>r»ld Mailer Residence 4" 11- ft.(D) 3/77 83 ft. 400 7.2 11/7/84 Good water PW-11 • MAP LOCA- NAME OF CURRENT WELL WELL DATE ORIGINAL STATIC FIELD CON- FIELD DATE OWNER'S TION CODE OWNER OR TENANT DIAMETER DEPTH (1) DRILLED (11 WATER LEVEL DOCTrVTTY (2) pH (2) MEASURED REMARKS PW-24 Doris Bailey Residence 2" 180-200 ft.(O) 48 yrs.(+ 370 7.1 10/12/84 Bad water; odor, iron stains, taste, etc. PW-25 William Maule Residence 2" 123 ft.(D) 5/74 103 ft Good water PW-26 John Boyce Residence 4" 86 ft.(D) 7/78 59 ft 320 7.4 11/6/84 Good water PW-27 Stoney Schram Residence 2" 141 ft.(D) 7/78 120 ft Good water PV-28a John Schram Residence 2" •> "Old Well" - Very bad water (abandoned) PW-28b John Schram Residence 2" "New Well" 425 6.7 11/6/84 Bad water; odor and iron stains PW-29 Abandoned Chicken House 203 ft.(D) 1/69 169 ft. Bad water (abandoned) PV-30 Galyon Farm Residence 2" Bad water (abandoned) PW-31 William Parker Residence 4" 143 ft.(P) 9/78 Ill ft. (Owner away) PW-32 Rick Spires Residence 4" 94 ft.(D) 5/76 Good water PW-33 Gruber Residence 4" 128 ft.(O) 1972 420 7.2 10/13/84 Bad water PW-34 J. Rouen Residence 4" •J 7 7.2 11/6/84 Bad water PW-35 Tere&hinski Residence t "t i (Owner away) PW-36 Ronald Aldrich Residence 4" 205 ft.(D) 11/83 180 ft. Good water PW-37 J. Roude Residence 2" t t Good water PW-38 Howard Richards, Jr., Res. 4" •t t Good water PW-39 R. Byard Residence 4" 200 ft. CD) 3/80 170 ft. Good water PW-40 Abandoned Mobile Hooe Site 2" - - Bad water (abandoned) PW-41 John Forbes Residence 2" 170 ft.(D) 2/72 153 ft. Good water PW-42 Roy Laudemilk Residence 4" 131 ft.(D) 4/76 96 ft. (Owner away) PW-43 Richard HcGalibory Res. 4" 138 ft.(D) 5/75 97 ft. (Owner away) PW-44 Jack Buckwheat Residence 8" t Old Ai Good water PW-45 Emory Howes Residence 2" 65 ft.(D) 7/74 48 ft. Good water PW-46 Sandy Parker Residence 2" 70 ft.(D) 7/76 48 ft. Good water Footnotes (1) D = Information fra Drillers Log, 0 - Information from Owner (2) Conductivity is in Micrxa-hos, pH is in Standard Units CITY WELL LOCATION WATER WELL LOCATION •QOOO WATER' REPORTED SOIL t MATERIAL ENGINEERS. INC CINCINNATI. OHIO WATER WELL LOCATION WITH WATER LEVEL MEASUREMENT "CHEMICAL WATER' REPORTED FIGURE 3-1 MONITOR WELL --1020 GHOUNOWATER ELEVATION CONTOURS REGIONAL WATER WELL INVENTORY. from October i_64 Observation PRIVATE WELL ANTRIM IRONWORKS SITE CITY WELL ANTRIM. MICHIGAN GULF • WESTERN MONITOR WELL SECTION LINE APPROVED SI FWE SCALE 1 inch - 1320 II PROJECT NO 024-B4I7O collected during this survey are shown in Table 3-2. Finally, the groundwater elevation data were interpolated and contoured to show the regional hydraulic gradient and direction of regional groundwater flow ((see Figure 3-1). <. Regional pumping centers were investigated during this study to determine whatinterrelationships may exist between high capacity wells and the "chemical water" plume. Three high capacity water production wells were identified as contributing to the Mancelona City water system (see Figure 3-1). These wells are identified as follows: Table 3-3 MAP DATE CODE CITY WELL NO. DEPTH DIAMETER DRILLED STATUS CW-1 well No. 1 150 ft. 6" 1951 Standby only CW-2 Well No. 2 93 ft. 6" 1956 Operating CW-3 Well NO. 3 175 ft. 12" 1964 Operating City well No. 1 has not been in regular use since at least the early 1960's. However, it is still available as a standby unit and is fully equipped with a pump and connections to the Mancelona water system. A driller's log was not available for City well No. 1. City well No. 2 is located at the western end of Pumphouse Lake. The driller's log shows that medium to coarse sand was encountered all the way down to 93 feet. Because of the obvious hydraulic connection between City well No. 2 and Pumphouse Lake it is not surprising that Pumphouse Lake has been reduced to a swampy meadow, due to dewatering. Most of the City's water needs are supplied by well No. 2. In 1963, records indicate that 75 ^percent of the annual water production was pumped from City well fro^2, at an average withdrawal rate of 0.3 million gallons per day (mgd). 3-5 TABLE 3-2 ANTRIM IRON WORKS SITE, MICHIGAN REGIONAL GROUNDWATER ELEVATION SURVEY MAP WELL TOP OF DEPTH TO DATE OF GROUND- CODE OWNER DEPTH CASING ELEV.(1) WATER MEAS. WATER ELEV. PW-2 David Roman 84' 1098.96 66.57' 10/11/84 1032.39 PW-8 Antrim Machine Products 7 1113.63 104.73' 10/11/84 1008.90 PW-9 Sidney Riddle 198' 1098.27 67.64' 10/10/84 1030.63 PW-10 Gerald Miller 114' 1108.44 86.04' 10/10/84 1022.40 PW-13 Leroy Udell 190' 1141.47 154.32' 10/11/84 987.15 PW-17 Bud Butler 7 1106.81 100.44' 10/12/84 1006.37 PW-19 (Abandoned Windmill) 7 1084.54 53.24' 10/12/84 1031.30 PW-22 Glen Thornburg 160' 1125.54 130.58' 10/12/84 994.96 PW-31 William Parker 143' 1087.20 114.17' 10/13/84 973.03 PW-32 Rick Spires 94' 1034.58 63.47' 10/13/84 971.11 PW-33 "The Grubers" 128' 1060.57 88.85' 10/13/84 971.72 PW-36 Ronald Aldrich 205' 1137.94 164.57' 10/13/84 973.37 PW-44 Jack Buckwheat 7 - 67.80' 11/7/84 - pw-7 Weathervane Windows 130' 1111.4 96' 11/1/76 1015.4 GW-1 Gulf & Western Mfg. Co. 80' 1121.05 70.09' 11/6/84 1050.96 GW-2 Gulf & Western Mfg. Co. 72' 1118.07 62.74' 11/6/84 1055.33 GW-3 Gulf & Western Mfg. Co. 74' 1118.26 67.25' 11/6/84 1051.01 GW-4 Gulf & Western Mfg. Co. 84' 1121.57 70.46' 11/6/84 1051.11 GW-5 Gulf & Western Mfg. Co. 75' 1119.90 69.52' 11/6/84 1050.38 (1) Elevation datum is mean sea level. City^well No. 3 supplied 2S percent of the waterused in 1963, at an average withdrawal rate of 0.1 mgd. This well lies 0.8 miles north-northwest of well 2 and draws water from an aquifer confined between two clay aquitards. The driller's log reported the following stratigraphic sequence for City well No. 3. Table 3-4 DEPTH FORMATION 0-98' Fine-medium sand 98-153' Blue clay 153-175' Fine-medium sand 175- Blue clay Total groundwater withdrawal has not varied significantly over the past 10 years for the City of Mancelona, which also supplies water to the Village of Antrim. Detailed records for groundwater pumpage, presented on Table 3-5, indicate an average system use of about 0.4 mgd. Off Site Sampling emd Analysis Threeoff site drinking water wells were selected for GC/MS library scan analysis as described for on site wells in Section 2.4. Wells PW-la, PW-2, and PW-28b were sampled and analyzed for Volatile Organics, Acid Extractables, and Base/Neutral Extractables. Water from well PW-la has the strong, phenolic type ^ _ odor characteristic of many wells northwest of Tar Lake. This well is however located southwest of the Lake. It was selected for analysis to determine whether the contaminants varied in this direction. PW-2 is a recent well, also exhibiting a strong odor, and is located due west of Tar Lake. PW-28b is located approximately two miles north/northwest of Tar Lake and is reported by its owner as containing "chemical water." 3-7 TABLE 3-5 TOTAL GROUND WATER PUMPAGE, CITY OF MANCELONA, MICHIGAN (1) (Gallons by Month and Year) i Y £ A K i MONTH ! 1979 1980 1981 1982 1983 1984 JAN 13,097,000 10,859,000 11,010,000 10,264,000 11,501,000 FEB 13,155,000 14,838,900 10,991,000 14,315,000 11,951,000 MAR 15,640,000 15,141,000 11,073,000 13,590,000 10,673,000 APR 11,507,000 8,640,000 9,944,000 12,794,000 9,370,000 MAY 11,823,000 11,484,000 6,401,000 14,110.000 9,453,000 CiO 00 JUN 12,211,000 15,680,000 9,835,000 10,713,000 16,160,000 JUL 15,793,000 14,303,000 14,512,000 12,466,000 19,457,000 AUG 12,869,000 11,959,000 11,680,000 10,713,000 13,629,000 SEP 14,396,000 11,871,000 8,485,000 12,084,000 14,243,000 OCT 11,704,000 17,423,000 29,246,000 12,086,000 12,954,000 NOV 8,927,000 11,717,000 11,040,000 10,280,000 12,014,000 DEC 8,030,000 11,635,000 7,930,000 8,924,000 10,977,000 TOTAL 149,151,000 155,550,900 142,147,000 142,339,000 152,382,000 (1) Data provided courtesty of Mr. Robert Curtis, Jr., Water Superintendent. Laboratory reports for these wells are contained in Appendix D and are summarized below. Public Well |la; Volatile Organics: No peaks were identified. The RIC shows no major unidentified peaks. Acid Bxtractables: No peaks were identified. The RIC shows no major unidentified peaks. / Base/Neutral Bxtractables i One peak/is named, with the desig- nation, "unknown, not in NBS library." The RIC indicate* several other peaks that cannot be resolved or identified. Public Well »2; Volatile Organics: No peaks were identified. The RIC indicates no major unidentified peaks. Acid Extractablesi One peak was tentatively identified as hexade- canoic acid (9 pig/1). The RIC shows no major unidentified peaks. Base/Neutral Bxtractables> Two peaksare named, and designated "unknown, not in NBS library". The RIC shows one unidentified peak. Public Well I28b; Volatile Organicst No peaks are identified. The RIC shows no major unidentified peaks. Acid Bxtractablest Six peaks were obtained, four of which are tentative identifications and two of which are "unknown, not in NBS library." The tentatively identified peaks are: tetradecanoic acid (16 ug/1), hexadecanoic acid (64 yq/1), octadecanoic acid (14 ug/1) (all of which are natural detergents), and 3-(benzoy)- 8-azabicyclo\3,2,l\octane-2-carboxylic acid (21 ug/1). This later compound is a phenolic type chemical, with a characteristic phen- olic odor. The laboratory was unable to positively identify the remaining two peaks. 3-9 Base/neutral extractablest Two compounds are named, both as "unknowns, not in NBS library". They are 3-(2-propynl) cyclohexene (34 ng/1) and l-methylene-3-(1-methylethenyl)-,(R) cyclohexane (70 ng/1). HPLC analyses for priority pollutant phenols were also performed on several off site wells. The wells tested were PW-9, PW-10, PW-11, PW-12, PW-14, PW-22, PW-26, PW-28b, and PW-34. All but two samples contained nopriority pollutant phenols (to a level of 0.05 mg/1) except PW-26 and PW-10, for which the laboratory reported 0.05 mg/1 4-nitrophenol. Trace metal analyses for off site wells are reported in Table 3-6. Positive values were obtained for cadmium in the three off site wells subjected to full trace metal analyses, and several wells showed positive values for iron. A possible correlation exists between positive iron values and the designation "chemical water" by well owners. Table 3-7 below charts iron concentration versus owners' water quality designation. Table 3-7 Well Number Iron (mg/1) Owner Comments PW-la 0.95 chemical water PW-2 2.8 chemical water PW-7 <0.5 good water PW-9 3.8 chemical water PW-10 <0.5 good water PW-11 2.7 chemical water PW-12 4.0 chemical water PW-14 2.9 chemical water PW-22 <0.5 good water PW-26 <0.5 good water PW-34 3.6 chemical water Field Blank <0.5 DI water, site preserved 3-10 TABLE 3-6 TtACE ttTAL AMALYTICAL RESULTS OFF SITE HELLS TAI LUX PW-la PW-2 PW-28b PW-7 PW-9 PW-10 PW-11 PW-12 PW-14 PW-22 PW-26 PW-28b PW-34 FIELD BLANK ARSENIC <0.05 <0.05 <0.05 BARIUM <1.0 <1.0 <1.0 CADMIUM 0.01 0.01 0.01 CHROMIUM <0.05 <0.05 <0.05 LEAD <0.05 <0.05 <0.05 MERCURY 0.0007 <0.0002 <0.0002 SELENIUM <0.01 <0.010 <0.01 SILVER <0.05 <0.05 <0.05 COPPER <0.10 <0.10 <0.10 IRON 0.95 2.8 3.4 <0.5 3.8 <0.5 2.7 4.0 2.9 <0.5 <0.5 4.6 3.6 <0.5 NOTE: ALL UNITS ARE «g/l. - - HOT ANALYZED This data suggests that organic contaminants, if any, in the groundwater are associated,orcomplexed, with iron. 3-12 4.0 HYDROGEOLOGIC CONDITIONS 4.1 Hydrogeologic Condition On-Site Preliminary subsurface investigations indicated that the Antrim Iron Works site is underlain predominately by brown medium sand. The color grades to gray at the water table; some thin lenses of silt and clay were also encountered. Boring 9 (see Figure 3-1, Plot Plan) was advanced to 60 feet below the water table without encountering any significant aquitard or aquiclude strata. Groundwater depth measurements taken during the early part of November, 1984 indicate that natural flow is in a northwesterly direction (see Figure 3-2, Water Table Elevation___Map) . The differential water table elevation is about 6 feet, over a span of about 1000 horizontal feet, within the fenced area surrounding Tar Lake. At the northeast corner of the site, the groundwater flow direction swings northward. The reason for this trend has not been investigated although pumping withdrawals from Nelson Lake could yield a pattern of drawdown similar to that observed. The water surface of Tar Lake lies about 20 feet above the surface of the groundwater table. If hydrogeologic conditions encountered at borings 1 through 9 are representative of the entire site, and they appear to be, no hydrogeologic barriers exist between Tar Lake and the regional aquifer. Field measurements were taken on groundwater samples collected November 5, 1984 to determine temperature, pH and conductivity. Results of this survey are summarized below: MONITOR TEMP, pH CONDUCTIVITY WELL NO. (CF) (Std. Units) (micromhos) MW-1 ~48T 6.6 280 MW-3 47° 7.2 480 MW-5 44° 7.2 290 MW-6 44° 6.9 600 MW-7 45° 6.8 720 MW-8 45° 7.0 630 MW-9 45° 7.0 500 4-1 The conductivity data serve to confirm that monitor wells MW-1 and MW-5 lie upgradient of Tar Lake. All other monitor wells show elevated values for conductivity with MW-7 being the high- est. The conductivity value for MW-3 is also elevated, which supports the northward flow direction inferred by Figure 2-2. 4.2 Hydrogeologic Conditions Off-Site Driller's logs of the private water wells identified during the Regional Inventory were examined to assess aquifer conditions within and adjacent to the "chemical water" plume. In virtually every case, nothing except sand and gravel is reported within tjie aquifer zone.__Jilthin the area surveyed on Figure 3-1, the only well completed within an aquifer confined by clay aquitard strata is Mancelona City well No. 3 (CW-3). Private well PW-2 (David Homan Residence) is the closest well downgradient of the Antrim Iron Works site to be affected by "chemical water." The well lies 3700 feet west of Tar Lake and is screened 14 to 18 feet below the static water table. However, private well PW-26 (original owner is Andy Prokup) is not affected by "chemical water" in any way. PW-26 is located only 1200 feet west of Tar Lake and is screened from 23 to 27 feet below the static water level. The apparent reason for this discrepancy is that groundwater contamination originating from the Antrim Iron^JAorks__a±Lff may be collecting on the aurfacVjof the groundwater table, with very little or no downward movement at the point of origin. Such a shallow plume may pass over the screened section of PW-26. As the__p_lume moves downgradient, it * ^^ — '~ '-• - .. becomes thicker by virtue of diffusion such thatwellsFurther downgTadient^begjln t^ capture portions of degraded wat^er that lie within the plume. Recharge from precipitation enters the aquifer downgradient of the Antrim Iron Works area, depressing degraded water zones with- in the plume by superimposing a fresh water layer. Shallow wells, such as PW-13a and PW-27, appear to be tapping a layer of 4-2 fresh water overlying the "chemical water" plume. As recently discovered at the Leroy Udell residence, replacing a shallow well (PW-13a) with a deeper well (PW-13b) resulted in a reduction in water quality. Likewise, good quality water was reported at PW-18 (160 feet deep) while very bad water was reported for well PW-29 (203 feet deep), which is screened to 34 feet below the water table. While these data suggest that a potable layer of shallow ground- water has probably developed over the degraded groundwater plume/ 2 to 2 1/2 miles downgradient of the Antrim Iron Works site, no evidence is available to illustrate the vertical extent of the plume, its lower limit, or its ultimate fate northwest o£_PW-14. The conductivity data shown on Table 3-1 indicate that no measur- able differences exist between "chemical water" and potable groundwater outside of the plume, in terms of dissolved solids content, except for PW-7 and PW-8. While both of these wells yield good quality water, each yields water having elevated conductivity values. No other conductivity measurements were taken on the northern side of the "chemical water" plume. Although "chemical water" originating from the Antrim Iron Works site does not appear to be the cause of elevated conductivity values in PW-7 and PW-8, other potential sources have not been investigated. Two wells located at the Moeke Lumber Company (PW-la and PW-lb) yield "chemical water." Both lie approximately 1/4 mile south- west of Tar Lake, and do not appear to be directly downgradient of the Antrim Iron Works site. Likewise, most of the wells affected by "chemical water" within about 1 mile of the Antrim Iron Works site appear to be influenced by a contamination source that lies to the south of Tar Lake. Based upon these observations, additional investigations in the general vicinity of the Mancelona Sanitary Landfill are 4-3 recommended. This area may be impacting groundwater either as a result of the landfill or historic Antrim Iron Works' activities. 4-4 5.0 Contaminant Identification Although the characteristic strong odor associated with many private drinking water wells, and on site monitor wells, provides a first-order indication of contaminated wells, it is vital that a full chemical characterization of the nature of these contaminants be performed. Analyses conducted during this preliminary site assessment did not provide the contamination Characterization needed. T,ne options both for parameters selected for analysis ^and^ analytical technologies employed should be reviewed prior in initiating further site work. This section summarizes all known analytical work associated with the site to date and suggests the direction additional characterization should take. 5.1 Historical Data Associated With Tar Lake The following is a brief summary of the data collected on the site discovered during this project. / February,1949 - Camples of drinking water were collected by the State Geologists Office. These samples were analyzed for: Gibbs1 phenols, threshold odor, total hardness, and chlorides. Results are shown below. Well Gibbs' threshold total total Descriptor phenol odor hardness chlorides Fleming Homan 0 ppm 1,000 180 ppm trace Clyde Bailey* 0.06 ppm 1,000 NA NA Helen Brewer 0.05 ppm 1,000 280 ppm trace Woodlawn School 0.04 ppm 333 300 ppm 2 ppm *This is probably PW-24. Others have probably changed ownership. The Bailey well was reported as cresol, others as ortho-cresol. (Note: The Gibbs' phenol test usually indicates only ortho substituted phenolics.) C j**yy 1967__.rLj__Samples from Tar Lake, Peckham Lake, and a number of unnamed ponds in the area were collected and analyzed for trace metals by MDNR. Results are shown below: 5-1 Sample PH Cu Cn Zn Cr COD DC T_.*• aa ^u lOi f\r\n ng/ini~f /I -_ _ Tar Lake 7.6 0.0 0.0 1.4 .00 30_ 0 Peckham Lake 8.1 0.0 0.0 0.0 .00 Pond S of Tar 7.6 0.0 0.0 0.0 .00 120 February, 1980" ~* MDNR^ collected and analyzed samples from area drinking water wells. Analyses were conducted for chromium, copper, iron, nickel, lead, and zinc. No positive values were obtained for chromium and nickel. Other results are shown below. Well Cu Fe Pb Zn Comment Descriptor My / a. Moeke Lumber <20 880 50 600 PW-la or b Miller <20 160 <50 210 PW-10 ? Stephan 45 <100 65 240 1 mile south of site Cryderman 20 <100 85 70 1 mile SSW of site Howe 30 <100 <50 70 1 mile SW of site Smith <20 <100 50 90 1.5 miles SW of site McHugh 120 <100 <50 110 1 mile west of site Johnson Rd <20 105 <50 370 1 mile west of site illegible <20 490 <50 120 C ^August 19J*0_ Analysis of sludge from Tar Lake (data in file, source unknown^ shows phenols at 140 mg/1; iron at 35,000 mg/1; lead at 120 mg/1; nickel at 20 mg/1; chromium at 85 mg/1; zinc at 320 mg/1; copper at 1100 mg/1; and cadmium, not detected. August, 1981 USGS analyzed drinking water from well 1445429085033601. Among results were the following: conductivity 355 micromhos; pH 7.9; dissolved organic carbon 1.2 mg/1; total iron 70 ug/1; and dissolved iron 20 ug/1. May, HNU detector survey conducted by "Donald Woods" was negative. December, 19j2^- Samples, from on site monitor wells, were •-^^ ^—^-^^^^^^- "" collected and analyzed for metals and priority pollutants (by GC/MS). Positive results included: MW-5 pentachlorophenol (180 ug/1); MW-4 pentachlorophenol (1700 ug/1 and 2300 (jg/1). 5-2 The Michigan Department of Public Health conducted detailed testa on two residential wells: the Kube well (PW-9?) and Dave Homan well (PW-2). Analyses were performed for priority pollutants by GC/MS, iron, manganese, conductivity, hardness, sodium, nitrates, chlorides, flourides, and coliform on both wells. The Kube well water was found negative for priority pollutants. However 0.15 mg/1 phenols (general) were reported. Total iron was reported at 11.4 mg/1 and conductivity at 383 mmhos. The Homan well was also negative for priority pollutants. Iron was 2.45 mg/1. Phenols were not reported. /"'September, 198_3^Tg£w Manufacturing Company sponsored ^analyses o£ tlTe far Lake sludge, and water leached from the sludge. The sludge was found to contain 38%-71% water and had Btu values from 1,900 to 8,950. Water leached from the sludge was found to contain 130 mg/1 phenols (general), 1500 mg/1 total organic carbon, and 0.0251 to 0.049% solids. February, 19JU-—^f£_amples from on site monitor wells were taken by MDNR. A verbal report from D. Larsen indicated that GC/MS analysis for priority pollutants was negative. A split sample from MW-1 analyzed by G+W was also negative for priority pollutants by GC/MS. However phenols (by colorimetric method) were found at 0.030 mg/1. 1984 -A,; soil sample collected by G+W personnel at the site closed Mancelona landfill was found to contain 7.9 mg/1 phenolics; a trace of Chrysotile asbestos; and trace concentrations of benzene, methylene chloride, methyl isobutyl ketone, toluene, trichloroethylene, and xylene. 5 . 2 Discussion of Analytical Data Although some of the existing data is contradictory or incomplete, it is evident that "phenols" have been consistently reported. In most cases analysis by GC/MS for priority pollutant ___ phenols (cKlorinated and nitrated phenols) has been negative even when colorimetric methods have resulted in positive values. The 5-3 HPLC method employed^ in the current project also yielded negative values. With respect to the data obtained to date, a working hypothesis is that phenol-substituted contaminants are present in l:he groundwater but that the substitution group is probably^ n chlorine or nitrate. The colorimetric procedure usually employed for"phenols"TiStandard Method 510B, the 4-aminoantipyrine method. This method determines phenol, ortho- and meta- substituted phenols, and, with proper procedure adjustment, some para- substituted phenols. It is not sensitive to para- substituted phenols where the substitution group is alkyl, aryl, nitro, benzoyl, nitroso, or aldehyde. Data from this preliminary work also indicates an apparent relationship between iron and "chemical water", suggestingthat n£ iron complexing may be occurring. Several sets of analysis by routine GC/MS have not been successful in identifying the nature of the contaminants present. Numerous trace metal analyses conducted are inconclusive. Some data suggests lead and cadmium are possible contaminants. Further investigation into acceptable analytical protocols should be conducted prior to additional site work. In addition, it will not be possible to prepare endangerment assessments until the contaminants have been identified. 5-4 6.0 Summary The basic objective of the investigation was to develop infor- mation needed for the preparation of a realistic work plan for the Antrim Iron Works Site. The summary below details the data obtained with respect to each objective, and identifies remaining variables and data gaps which must be addressed in the RI/FS work plan. 6.1 Site Definition The RI/FS study area should include at a minimum those areas impacted by the Antrim Iron Works Company. Topographic mapping data from 1938 suggest that Tar Lake once extended further south and west of its present location; in__addition Antrim Iron Works Company operations appear to have extended substantially south of TaT Lake. The closed Mancelona landfill is also of concern. Its proximity to the Tar Lake site makes differentiation difficult. The work plan should include therefore the area bounded by Elcjer Road on the north; Highway 131, on the west; Moeke Lumber Co. on the south; and the section road on the west (an area of approximately 300 acres), i ]_n addition, sufficient water and sediment samples should be taken from Peckham Lake and Nelson Lake to determine that they are not impacted. During the interviews conducted with local residents as part of the regional well inventory, these residents referred to the existence of a "Tar Pit" in what is now the open "•» " - field west ofHiqhwav 131. While no other evidence was developed that this field may have received wastes from Antrim Iron Works Company, a provision should be made in the work plan to evaluate this possibility. 6.2 On Site Groundwater Plow The direction of flow of groundwater on site has been generally established. The source of the local influence on the north side of Tar Lake must be determined. 6-1 6.3 Regional Groundwater Flow Within the constraint of existing well locations, the regional groundwater flow has been tentatively determined. Additional data, especially boring logs from local drillers and identifi- cation of other well owners in the area, should be obtained. 6.4 Contaminant Identification Analyses conducted as part of this investigation wer e not successful in identifying the contaminants, if any, in_on or of^ site wells. Strong odors associated with all on site wells and many off site wells may be indicative of contamination. In addition iron concentrations are higher within the assumed area of groundwater impacted by Tar Lake than in surrounding wells. Further analytical protocol development is required. 6.5 Contaminant Plume Identification Definition of the contaminant plume requires that the chemical characteristics of the contaminant(s) be established. Based on strong odor and well owner descriptions, however, it appears that a plume may exist west and northwest of the Antrim Site. Even this method of definition is limited, however, by the availability of existing wells. Extensive anal^sjes^ of off site wells should be performed when an analytical protocol has been developed. The regional well inventory should be expanded to include wells northwest of PW-14, and areas south and north of the current inventory. An evaluation should aJLao be performed to determine the vertical extent of contamination. 6-2 APPENDIX A SITE HISTORY AND DESCRIPTION A.1 Site History and Description The Antrim Iron Works Site is located in Antrim County, Michigan. The site, shown in Figure A-l, occupies 40+ acres just east of Highway 131, approximately one mile south of Mancelona, Michigan (population 1500). It is situated in a rural, undeveloped area except to the northwest where the village of Antrim (population 540) is located. From 1882 (Source: Mancelona Herald, July 10.1980) to 1945, the site was the manufacturing location for companies producing iron ^ charcoal method. From 1882 to 1886, the site was occupied by the John Otis Charcoal Iron Furnace Company. In 1886 the Antrim Iron Works Company (AIWC) took over the site, and the 1890, AIWC operated the world's largest charcoal furnace. AIWC produced 20,000 tons of__jLron annually^ using hardwood charcoal made on-site in kilns. In 1910 the company began__producina charcoal in sealed retorts from which crude pyroligeneous liquor was recovered. This liquor was then further processed into calcium acetate, methanol, acetone, creosote oil, and wood tar. This secondary Chemical manufacturing process produced a waste equivalent to still bottoms which was discharged Jjito a v __ _ depression on-site. This depression, now called Tar Lake, receivedannually the waste still bottoms generated from 45-50,000 cords of wood. The furnace was closed in 194J. The cfiemical plant waa^crosed in early 1944 and__alj^ AIWC operations ceased in 1945 after which the company was place in receivership 'and the site was salvaged. The site received wood for tar Pastes, therefore, from 1910 to 1944. (Source: Mancelona Area Centennial Commission). No containerized wastes are present and no record of subsequent waste discharges have been found. Current landowners include, among gthers_,__G+W Manofactur ing Company (a.k.a. Mount Clemens Metal ProductaJ^__the Township ofjtencelona. Antrim Iron Works Company or itsaucceasora and Moeke Lumber Company. The latter operates a lumber mill south of Tar Lake. The Township of Mancelona operated an 8-acre municipal landfill ontn~e site for ANTRIM COUNTY TAR LAKE SITE VICINITY MAP SCALE !• MILKS approximatel_^ . y eight years (1961-1969). G+W has not utilized the site, except for two warehouses located northwest of Tar Lake. These warehouses are used to store machinery and parts for a plant located in Mancelona, one mile north oE Tar Lake (Source: G+W Manufacturing Company). The amount and type of wastes placed in the Mancelona landfill are unknown. However, exposed portions of the landfill contain drums and surface water in the landfill shows evidence of leachate production. It has been reported that Tar Lake caught fire in the 1960s and burned for an unspecified period before being extinguished by natural action. The site itself is characterized by severe topographic relief. No permanent or intermittent streams are present and there appeajr5_fcobe no surface run-off from the site. In addition to Tar Lake, the site contains many large alag piles, piles of 1imestone, and ruins of AIWC operations. A strong chemical odor is present ngay Tar f.alc<». A large sludge plume ia evident on the west side of the lake. A.2 Nature and Extent of the Problem Data collection to date at the Antrim Iron Works Site and in the surrounding area has been poorly coordinated. However, evidence of off-site private well contamination by phenoln—was-—first established in the 1940s and confirmed as recently as 1980. Phenols are a typical "leachable" waste from wood tar waste storage areas. Heavy metal contamination has also been documented, although the source of these metals has not been established. The apparent absence of surface run-off, the * _ _ ' evidence of existing off-site groundwater contamination, and the nature of the wood tar wastes have been considered in establishing a tentative list of major environmental concerns for purposes of the Draft Work Plan. The major concerns are: *N\ direct human contact with the wood tara in Tar Lake and the associated sludge plume and contaminated soil; / i *'. contamination of the unconfined aquifer on-site and sUbsequent contamination <}»f off-site drinking water wells; *~^ r- ^ ^ _/>--} * potential air quality problems due to the possibility of a '> recurrence of the 1960s fire on Tar Lake; and / / * potential for Tar Lake contaminants to enter the I r I \ ' ( environmental food chain due to 'exposure to flora and \ fauna at the site. A.3 Previous Investigations and Remedial Actions A number o£ limited invest lyatlona oL Tar Lake havo bts«n conducted since 1949. A summary of theae Inveatigationa and findings is shown below. 1949 Eight private wella off-site were found to be contaminated with phenols at low levels. One of the wells, according to the owner, had been contaminated "for forty years." Contaminated wells were located west and northwest of the site. 1980 Elevated lead levels are found in several Mancelona area wells. 1980 Analyses of Tar Lake sludge by MDNR exhibit heavy metals and phenols. 1982 Monitoring wells (4) are inutalled at Tar Lake. Results of analyses are reported aa "inconclusive." 1983 Limited testing of Tar Lake performed by G+W. Results showed high phenol levels but no detectable heavy metals in "pore water." 1984 Soil samples taken by G+W at the Mancelona landfill show low levels of lead, phenols, trichloroethylene, xylene, benzene, methylene chloride, methyl isobutyl ketone and traces of chrysotile asbestos fibers. There have been two remedial actions to date on the site. In 1949, city water was extended to the Village of Antrim and much of the surrounding area. Local residents indicate that only a few homes continue to use groundwater. In 1984, G+W erected a six foot woven-wire fence topped with barbed wire to secure Tar Lake from unauthorized access. A.4 Environmental Setting The following is excerpted from the Remedial Action Master Plan as a basis for Site review. Geology The Coldwater Shale Formation represents bedrock in southern Antrim County. In this part of Michigan, the Coldwater is apparently a deltaic sequence consisting of carbonates developed with the gray, micaceous shale. The^jiriller' a log from an exploratory oil well indicates that the Coldwater shale in the vTcTn~iiry"~of Tar Lake is about 330 feet in thickness and composed primarily of shale with some dolomite. The Coldwater shale are early Mississippian age sediments, which like the underlying sedimentary formations, dip gently to the southeast toward the Michigan Basin. At the_ai_te. about 400 feet of unconsol idated materials overlie bedrock. These deposits are primarily Wisconsin age glacial drift. The surficial materials ia glacial outwash composed of sand and gravelly sand. Boring logs from groundwater walls <_. ~ on-site indicate that the outwash deposits are at least 70 feet thick. The vertical extent of the outwaah deposits at the site, as well as the stratigraphy of the remaining underlying glacial drift, are unknown. The log from a Village of Mancelona water supply well indicates that a thick clay deposit exists approximately 100 feet of outwash deposit. However, the lateral continuity and extent of this clay deposit is presently unknown. Soils in the Tar Lake area fall predominately within the taxanomic classification of two soil series; Kalkaska sand and East Lake gravelly loamy sand. The Kalkaska and East Lake series consist of somewhat excessively drained, rapidly permeable soil. Hydrology Tar Lake and the surrounding area are located within the Rapid River drainage basin. Due to the very porous soils of the area, drainage tends to be primarily internal with surface drainage patterns being poorly developed. Any_ surface runoff occurring around Tar Lake probably flows into the depressional area occupied by the lake. Two small lakes, Nelson and Peckham, are located within one- quarter mile to the north and east of Tar Lake. The MDNR file correspondence indicates that these two lakes and Tar Lake may be over 70 feet deep. Their greater depths in relation to other 'Tocal pita may be the result of past annd excavation. (Actual depth is unknown. Resistance was encountered at ca. 15 feet when Tar Lake was probed in 1983). Geohydrology In Mancelona Township, groundwater i.a extracted from two •~^sy-. ~ principal aquifers locafgd within the glacial drift. The upper aquifer is unconfined and located in relatively thick deposits of glacial outwash composed of sand and sandy gravel. Well logs indicate that these outwash deposits are about 100 feeJL th_Lck. An underlying aquifer is confined and located in sand deposited within the less permeable, clayey glacial moraine material. The drilling log^from a Village of M^n^irm* u«.i i—Lndicatea thal~ the top o£ the confined aquifer is located about 150 feet below the qrjoutui_8urface. _The Village of Mancelona extracts groundwater from both aquifers, while the majority of local residential wells are located within the relatively shallow unconfined aquifer. At the Tar Lake site the groundwater table in the unconfined, glacial outwash aquifer is about 35 to 50 feet below the ground surface. On September 24, 1980, a local developer sponsored a survey of static water levels in resident ial welia near the Tar Lake site. The survey indicate that thu direction yroundwater flow in the unconfined aquifer was toward the northwest. contamination of this aquifer, in the area surrounding Tar Lake, was reported as early as 1949. In 1949, a Michigan Department of Conservation study of residential wells indicated the unconfined aquifer was contaminated with creosol , possibly extending up to 3 miles to the northwest from tar Lake. The extent of phenoj. in _ nf thr groundwril-fr hfrn -- Michigan Water Resources Commission to be 3 miles long, 1/2-mile wide, and 200 feetTdeep . The vertical extent of the unconfined aquifer at the Tar Lake site is unknown. The existence and water quality of any confined aquifers underlying the unconfined aquifer at the site are also unknown. Air Quality Air Quality does not appear to be a problem at this time. However, if TaY Lake catches on fire as it did in the late 1960s, air quality could be a local problem. Ecology The Tar Lake site is located in the Hemlock-White Pine-Northern Harwoods region of Northern lower Michigan. Overall the vegetation in the area around Tar Lake is characterized by upland hardwoods (maple, beech, bauswood), pine plantations, old field communities and farmlands. The vegetative community probably supports a large and varied wildlife population. Waterfowl probably frequent the lakes and ponds (including Tar Lake) for nesting, feeding and during migration. It is not known if wildlife surveys of the area have been made. it is not known if the lakes near Tar Lake are used as a recreational fishery. Surveys of the lakes near Tar Lake for physical, chemical and biological parameters are not available. Socioeconomics Estimates compiled for the Hazard Ranking System jaiar^fi t-^a total population drinking well water within a three mile radius of Tar Lake of about 3,000. The population within the suspected 'contaminant plumeTiestimated at 150 (from the Regional Water Well inventory). Growth in the area has been primarily single family homes builp around the Village of Mancelona. A small residential housing development has been proposed on property located within 1 mile to the southwest of Tar Lake. Numerous residential homes are within 1/2-mile of the site. This includes the community of Antrim which has a population of a'bout 500. JTjig_ Village of Antrim is served by the Mancelona Water Department. In 1977, a facility plan waa prepared for the Village of Mancelona. It indicated that no historical or archeologicai sites on the National Register of Historical Places were located in the area. APPENDIX fl BORINGS LOGS FOR MONITOR WELLS ANTRIM IRON WORKS SITE /A\ J7 RECORD OF SUBSURFACE EXPLORATION Ale & uiczlg A Engin««ring, Inc. •a>iM B-l . Lak. Date of Boring 8"23"82 , Michigan P.I.JT. •.• • S2 080-14 i ..(__• par 6" MSCKI'TIM CKPTH Si-ou Increment Driller 'a Remarka ] TJ . 1SS 1-1-4 - - - • 2SS 6-5-7 * orown noiac rina a/_Ni/ 5« * with traca Madiua Sand 3SS 5-3-5 • HHMM^MH m 10 J ASS 4-2-5 . . 5SS -5-8 Brown Moiat Tine to Madiua • " SAND with trace Gravel • 20. J 5-6-5 6SS J j_ * Brown Moiat Fine SAND 25 . 7SS 4-4-5 * - i 30, ] 8S8 ] 7-9-10 j • •^ • • Brown Wet Fine SAND 35,1 9SS 1-7-10 On Coopletion ^ ; - . 40 [ . 10SS 5-6-10 . Boring terminated at 41.5 feet. : i 45 RECORD OF SUBSURFACE EXPLORATION Alt 4 Wltiig Engineering, Inc. , B-2 (Pa&e 2) Piojict Name: Tar Lake Date o1 Boung 8-24-82 Site CiMtaaka, Michigan Project No : S2060-J.4 low* per 6 MSCAI'TIM SAMPli MMH 'Ln,cr«mant Driller 'a Ranarka r+ : • 50 . 12SS 15-26-24 , Brown Moiat Fine SAND - • with traca Gravel _ 55 • 13SS 18-19-21 • • - — i 60 • 14SS 16-25-25 • - : 65 - ] * C 15SS 50-50-50/4" • » ?n _ • Boring carminaced at 70.0 feet. Boring dry cm completion. • 75 , • *• « : . RECORD OF SUBSURFACE EXPLORATION Alt t UUtlg Engineering, Inc m Q •> BAflM D-*- Project Mima Tar Lake Dili of Boring 8-24-82 S2080-14 5,,r Kalka-ika, Michigan Pioieci No Blowe per 6 MUIWTKM Increment Driller'e Remarke IIWWI 1SS 1-3-4 Fine SAND & Cindere (Fill) 2SS 6-9-4 No well eet at thia 3SS 4-5-9 location. Natural eand cave to 48 feet. 10 50 Ibe. of Granular Brown Moiat Fine SAND 7-5-6 Bentonite uaad ae eeal from 48 co 46 feet. Hole grouted from 46 15 • feet to aurfece. — n^^—aUflU^^, 13-11-10 20 6SS 12-16-17 Brown Moiat Fine SAND • with trace Gravel 25 7SS 12-12-18 '• 30 88 S 11-10-18 35 9SS 10-26-29 40 10SS 12-14-15 45 (Continued on next page) RECORD OF SUBSURFACE EXPLORATION Alt 4 Uitzlg Engineering, Inc. B-3 PfOiect Mima- Tar Lake Date ot Bonng 8-24-82 S,tr . Michigan Project No : S2060-I4 owe per 6 wscmMto* OfPTM n crement Driller 'e Ramarka IU*'-C( 1SS 6-9-3 Fine SAND (Fill) Slag 1-3-4 f: 5-5-5 ; 10 . 3-3-4 2-4-5 20 * Brown Moiat Fine SAND 6SS 5-6-6 with trace Gravel 25 7SS 4-5-5 ; 30 3-5-7 9SS 6-10-11 - i 1 40 . loss 7-10-14 • • 45 «— r " 11SS | 10-10-14 1 (Continued on next page) 1 1 RECORD OF SUBSURFACE EXPLORATION Alt 4 uitzlg Engineering, Inc. •anna B-3 (Paste 2) PrO|«Ct Mime- Tar La>e Dale of Boring 8-24-82 Site Kalkgftka, Michigan Project No : 32080-14 OiSCNI'TlM MPTH SAMPlI Driller', Req_,k Brown Moiat Fine SAND with trace Gravel V 12SS 5-7-10 Brown Wet Fine SAND On Completion with trace Gravel 55J Boring terminated at 55.0 feet. L o /dU/_7 RECORD OF SUIBSURFACE EXPLORATION Alt 4 uu.lg Engineering, Inc. •on it)I B-4 Protect Name- Tar .Lake Date ol Boring 8-24-82 Site' Kalkafcka, Michigan Project No S2080-14 _ / J lows per 6" OiSCMlfTUM OifTH Increment Driller 'e Remark* ] 1 II II lllflf***' (Fill) 1SS 2-5-6 J . - 2SS 5-4-4 5 . 3SS 2-4-4 ! " i 10 . 4SS 4-3-4 » , Brown Moiat Fine SAND 15 J with trace Gravel 5SS 4-3-3 20 . "1 1 6SS 2-3-2 i i 25 J e ™ 7SS 4-4-6 • ; 30 i 1 8SS 7-5-4 • i 35 , ' 9SS 3-4-4 • 40 •floss 3-4-6 . Brown Wet Fine SAND ~~} with trace Gravel On Completion "1 Boring terminated at 45.0 feet. - - n RECORD OF SUBSURFACE EXPLORATION Alt 4 Ultzlg Engineering, Inc. •orir* ______ Proiect Name Tar L»ke Oati of Boring 8-25-82 Silt Kalkarfita, Michigan Protect No S2080- 14 lowe per 6" 0(lCft>'T)ON OtPTH UM*i *Tjnf r«men^ Driller'a Remark* ] _ . 1SS 1 1-3 - - • * 2SS 4-4-3 5 • : 3SS 3-3-5 • j - 10 • • • Brown Molet Fine SAND 4SS 7-8-12 with trace Gravel — - i 15 • • 5SS 12-16-16 . ] VIV^^HM-BMM • 20 • t- : 6SS 6-13-14 ' 3 i 25 ei m 7SS 5-10-13 u N •i • 30 e • j 8SS I 7-21-27 •i •• m : 33 • f Brown Moiat Fine SAND | 9SS11-15-19 !• V f _Y — , " loss 8-12-26 «• ^^^^MMiKVI»• ^ * f Brown Wet Fine SAND V On Completion 45 : Boring terminated at 45.0 feet. - - RECORD OF BORING NO. Client: Gulf + Western Mfg. Co. Page of Project: Antrim Iron Works Site Project No.: 024-84-170 Elev. Depth Description Sample Sample Sample Blow* Recov- («•) <«.) No Depth (ft.) Type per 6" ery (In.) 1119.8 0 Cinder fill 1113.8 6.0 Brown medium sand 1 10.0-11.0 ss 3-6 2 15.0-16.0 ss 6-9 3 20.0-21.0 ss 4-10 1094.8 25.0 Alternating layers of 4 25.0-26.0 ss 7-11 brown medium sand and 5 30.0-31.0 ss 8-12 brown sand and gravel 6 35.0-36.0 ss 13-18 7 40.0-41.0 ss 6-10 8 45. 0-46. C ss 10-16 1072.8 47.0 Brown medium sand with 9 50.0-51.0 ss 8-13 trace coarse sand 1067.8 52.0 Alternating layers of 10 55.0-56.0 ss 17-18 brown medium sand and 11 60.0-61.0 ss 8-15 brown sand and gravel 1055.8 64.0 Brown medium sand with 12 65.0-66.0 ss 12-18 trace coarse sand 1053.8 66.0 Brown medium sand 13 70.0-71.0 ss 7-10 1044.3 75.5 Cray medium sand 14 75.0-76.0 ss 15-21 1034.8 85.0 End of boring @ 85.0 ft. Installed 72'-10" of 2" galvanized steel casing and 71 of 2", #10 slot stainless steel screen. Clean sand from top screen to 20 ft. then benseal to 7.5 ft. with clean sand to 5 ft. Date* Drilled: 10-10-84 Driller: Coaling Czuhak Aaaoc . Water Depth: Initial: 71.7 Day a after Completion: 71.7 28 Daya after Completion: 71.7 Drilling Method: Hollow Stem Auger SOIL ft MATERIAL ENGINEERS, INC. Cincinnati, Ohio RECORD OF BORING NO Z_ Client: Gulf + Western Mfg. Co. Page of Protect: Antrim Iron Works Site Protect No.: 024-84-170 Elev. Depth Description Sample Sample Sample Blow* Recov- (ft.) <«.) No. Depth (ft.) Type per 6* ery (In.) 1117.4 0 Black cinders and fill 1 5.0-6.0 SS 1-2 1108.4 9.0 Brown medium sand 2 10.0-11.0 ss 2-2 1103.4 14.0 Brown medium sand with 3 15.0-16.0 ss 3-3 trace of gravel 1099.9 17.5 Brown medium sand 4 20.0-21 .0 ss 4-4 5 25.0-26.0 ss 8-9 6 30.0-31.0 ss 10-9 7 35.0-36.0 ss 10-12 8 40.0-41.0 ss 7-12 9 45.0-46.0 ss 10-14 1068.4 49.0 Alternating layers of • 10 50.0-51 .0 ss 15-24 brown medium band and 11 55.0-56.0 ss 10-15 brown sand and gravel 12 60.0-61 .0 ss 14-34 13 05. 0-66.0 ss 14-2f> 1047.4 70.0 Thin lense of brown clay 14 70.0-71.0 ss 18-22 1046.9 70.5 Brown gravel with irucc of coarse sand 1044.9 72.5 Gray coarse sand and 1'j 75.0-76.0 b.S l'J-2'i gravel 1037.4 80.0 End of boring P 80 ft. Installed 70'-8" uf 2" galvanized utt-el cab ing and 7' of 2", //10 slot stainless steel screen. Clean sand from top screen to 20 ft. then benseal to 7 ft. Date* Drilled :____lD Driller: Water Depth: Initial: 1 Day* after Completion: 69.6 29 Day* after Completion: 69.7 Drilling Method: Hollow Stem Auger SOIL ft MATERIAL ENGINEERS, INC. Cincinnati, Ohio RECORD OF BORING NO. Client: Gulf + Western Mfg. Co. Page L of __L Project: Antrim Tron Works Slfp Project No.: 024-84-170 Elev. Sample Sample Sample Blow* Recov- (ft.) V Description No. Depth (ft.) Type per 6" ery (In.) 1115.5 0 Cinder fill 1112.0 3.5 Dark brown medium sand 1 5.0-6.0 SS 3-4 2 10.0-11.0 ss 2-2 1105.0 10.5 • Clean brown medium sand 3 15.0-16.0 ss 3-3 4 20.0-21.0 ss 6-11 5 25.0-26.0 ss 10-13 6 30.0-31.0 ss 7-9 1080.5 35.0 Brown medium aand with 7 35.0-36.0 ss 14-23 occasional thin layers of R 40.0-41 .0 ss 1 J-18 gravel 9 45.0-46.0 ss 14-23 10 50.0-51.0 ss 16-16 1062.5 53.0 Alternating layers of 11 55.0-56.0 ss 22-27 brown sand and gravel 12 60.0-61.0 ss 14-26 1051.5 64.0 Gray sand and gravel 13 65.0-66.0 ss 9-16 14 70.0-71.0 ss 10-26 1040.5 75.0 End of boring @ 75 ft. Installed 64'-2" of 2" galvanized steel casing and 7" of 2", //10 slot stainless steel casing. Clean sand fill from top screen to 20 ft. then benseal to 7 ft. then clean sand fill to 2.5 ft. Date* Drilled! 10-11-84 Driller: C.nf] inn f:niKn- Water Depth: Initial: 63.2 1 Day* alter Completion: 63.2 27 Day* after Completion: fevi Drilling Method: Hollow Stem Auger SOIL ft MATERIAL ENGINEERS, INC. Cincinnati, Ohio RECORD OF BORING NO. Client: C.ulf + Western HI ^. Co. Pag* of Project: Antrim Iron Works Site Project No.: 024-84-170 Elev. Depth Sample Sample Sample Blow* Recov- (ft.) Description Ho. Depth (ft.) Type per 6" ery (In.) 1093.9 0 Cinders, clayey sand and topsoil 1091.9 2.0 Clean brown medium sand ] 5.0-6.0 SS 1-2 2 10.0-11.0 SS 2-2 1082.9 11.0 Clean brown medium sand 3 15.0-16.0 ss 2-2 with trace of coarse sand 4 20.0-21.0 ss 3-3 5 25.0-26.0 ss 3-2 6 30.0-31.0 ss 3-6 7 35.0-36.0 ss 3-3 8 40.0-41.0 ss 4-5 1051.9 42.0 Brown sand and gravel 9 45.0-46.0 ss 3-4 10 50.0-51 .5 ss 15-15-13 11 55.0-56.5 ss 4-7-9 1037.9 56.0 Brown medium sand 12 60.0-61.5 ss 7-11-17 13 65.0-66.5 ss 7-10-14 1023.9 70.0 Gray medium to fine sand 14 70.0-71.5 ss 10-17-20 and silt with lenses of 15 75.0-76.5 ss 13-16-14 clayey silt 1013.9 80.0 Brown medium sand trace of 16 80.0-81.0 ss 9-9 gravel with lenses of 17 85.0-86.5 ss 10-17-23 gray clayey silt 1006.9 87.0 Brown fine to medium sand 18 90.0-91.5 ss 14-26-22 3 998.9 95.0 Light brown fine to medium 19 95.0-96.5 ss 18-36-24 3 sand with lenses of gray silt and clay 992.9 101.0 End of boring @ 101 ft. Installed 42'-2" of 2" galvanized steel casing Date* Prilled: 10-12-84 Driller: Gosling Czubak Water Depth. Initial: 40.6 Day* after Completion: 26 Daya after Completion: 40.4 Drilling Method: Hollow Stem Auaer SOIL ft MATERIAL ENGINEERS, INC. Cincinnati, Ohio RECORD OF BORING NO. Client: Gulf + Western MfR. Co. Page of Project: Antrim Iron Works Site Project No.: 024-84-170 Elev. Depth Description Sample Sample Sample Blow* Recov- and 7f of 2" #10 slot stainless steel screen. Clean sand from top of screen to 20 ft. then benseal to 7 ft. then clean sand to 2 ft. Datea Drilled:. 1 f-_1 9_RA Driller: Gosling Czubak Water Depth: Initial: Day* after Completion: 26 Day* after Completion: 40.4 Drilling Method: Hollow Stem Auger SOIL ft MATERIAL ENGINEERS, INC. Cincinnati, Ohio APPENDIX C GC/MS LIBRARY SCAN DATA ON SITE WELLS TAR LAKE EXHIBIT I. LABORATORY CHRONICLK SAMPLE IDENTIFIER: MW-8 COMPUCHEM SAMPLE NUMBER: 37633 Date Received/Refrigerated 11-07-84 Organics Extracted 11-07-84 Analyzed 1. Volatlles 11-08-84 2. Adds 11-09-84 3. Base/Neutrals 11-09-84 4. Pest1c1des/PCBS Not Requested Inorganics 1. Metals Not Requested 2. Cyanide Not Requested 3. Phenol Wot Requested SAMPLE IDENTIFIER: MW-8 COMPUCHEM SAMPLE NUMBER: 37633 15 PEAK IDENTIFICATION - Volatile Exclusive of peaks representing Internal stand-ir.l mil surrogate compounds, no peaks greater than 25'i of the Internal standard were Identified. 11 '88 t- CC'ClS.: IS*4 If.aj FIC i i i i I L .S4; i J\ Ml \ SAMPLE IDENTIFIER: MW-8 COMPUCHEM SAMPLE NUMBER: 37633 15 PEAK IDENTIFICATION - Add Exclusive of peaks representing Internal standard and surrogate compounds, one (1) peak greater than 25% of the Internal standard was Identified. COBEUCbEa-QBGHUlCS_BUBLiSiSJ_BlH-SbEEI 5 DATn FILENAME: HCti3?b33M@8 LIBRARY SEwRCH RESULTS OF EXTRANEOUS PEAKS S. SAMPLE # ri ESTIMATED COHCENTRHTIOH OF TEHTHTIUELV IDENTIFIED COMPOUNDS ANALYTICAL FRACTION: ACID ESTIUHTED COHC. SCfiN S ASSESSMENT* J/1H UG PER ITEM NUMBER CH£ * COMPOUND NAME PURITY RS 01 UK __T D D D L KG ML G 1 926 57-16-2 HEXwDECwHOIC-HCID 77.3 D E3 D 15. l.eee seree SPECTROSCOPIST __ DATE ... : R£ - P£H5uHM&-£ IDEHTIFICwTIOH. RETENTION TIME C(*P--TIc:_!Tf 01 - ISCflER- 0^ £1 MILHR COMPCHJND l> - U»*-,HOUN. HC' IN h_? COMPUCHEM LAfcS RIC CQHPUCHEM DATA: AC637S33A88 SCANS 225 TO 118. ll-i&-'84 8:88:86 SAMPLE: 1UL OF «CID 137633 '84) ON QUA WS CONDS.: 212168. 125.8- SSfl SSI3 ssts ISI1 SS»2 SS44 SS#6 878 RIC ..62 e 926 1813 831 556 . 631 682 I I see lotw SCAN 7:36 12:36 TINE SAMPLE IDENTIFIER: MW-8 COMPUCHEM SAMPLE NUMBER: t/f)33 15 PEAK IDENTIFICATION - Base/Neutral Exclusive of peaks representing internal standard and surrogate compounds, two (2) peaks greater than 25X of the internal standard were Identified. COMPUCHEM ORUANICS ANALYSIS DATA SHELT LIBRARY SEARCH RESULTS OF EXTRANEOUS PEAKS A ESTIMATED CONCENTRATION OF TENTATIVELY IDENTIFIED COMPOUNDS ANALYTICAL FRACTION: Base/Neutral DATA FILENAME: BC037633C14 SAMPLE 1*37633 SCAN % ASSESSMENT* ESTIMATED ITEM NUMBER CAS # COMPOUND NAME PURITY RS 01 UK CONC.(ug/l 1 890 54446-78-5 ETHANOL,l-(2-BUTOXYETHOXY)- n 27 2 1821 3790-71-4 2,6,10-DODECATRIEN-1-OL,3, 66.9 45 7,11-TRIMETHYL-,(7.,E)- tu tu 1.000 50.00 SPECTROSCUPISF H.W.H. DATE 11-12-84 ;*) RS - REASONABLE IDENTIFICATION, RETENTION TIME COMPATIBILITY 01 - ISOMER OR SIMILAR COMPOUND UK - UNKNOWN, NOT IN NBS LIBRARY COMPUCHEM LABS RIC COMFUCHEM D«TA: BC037633C14 SCANS 335 TO 1835 11/99/84 5:37:98 OUT OF 395 TO 2786 SAMPLE: 1UL 137633 (11-7-84) CONDS.: 125.0 SS41 SS43 SS45 SS47 SSf2 SS*4 sste ISfl 1824 819 RIC 1821 632' 1612 1233 .1522 16* s> ).. i "•^ • see 888 1886 1280 ^I486 1688 1380 7: >? ie;«e EXHIBIT I. LABORATORY CHRONICLE SAMPLE IDFNIIFIIK: MW-9 COMPUCHEM SAMPLE NUMBER: 37639 TJate Received/Refrigerated 11-07-84 Organics Extracted 11-07-84 Analyzed 1. Volatiles 11-08-84 2. Adds 11-09-84 3. Base/Neutrals 11-09-84 4. Pest1ddes/PCBS Not Requested Inorganics 1. Metals Not Requested 2. Cyanide Not Requested 3. Phenol Not Requested SAMPLE IDENTIFIER: MW-9 COMPUCHEM SAMPLE NUMBER: 37f>39 15 PEAK IDENTIFICATION - Volatile Exclusive of peaks representing internal standard and surrogate compounds, no peaks greater than 25% of the internal standard were identified. Jr SAMPLE: 5 ML « ;.7_._- + :• UL Lot". + 31:0^5 CONDS.: lui-.o 7L'7 qc 1 5*2 IS*. >_.' : s1i o • J • 1 ; •O' i . j i T ; i ' I r j i i •, ! i i I ,' i i i i i ' i i * ; : i i 1 1 i ! i i i i i ' ', ' 1 i ; { i , j i 1 J i o2'i is; v I /i^ 7t.7^.' (s_k.. -t >a /i 'i 595 643 f - — • \___j V^ 24i^ __ 05. ._^ ;. -x: . y i ' i • • i • - i i '••'• ;••>; • •. - --V- 6C; -!v- ,!v f • ~_ .1 • • ': ' ; I'O: • _ " ; ~ • ; , SAMPLE IDENTIFIER: MW-9 COMPUCHEM SAMPLE NUMBER: 37639 15 PEAK IDENTIFICATION - Acid Exclusive of peaks representing Internal standard and surrogate compounds, no peaks greater than 25% of the internal standard were identified. SAMPLE IDENTIFIER: MW-9 COMPUCHEM SAMPLE NUMBER: 3/6J9 15 PEAK IDENTIFICATION - Base/Neutral Exclusive of peaks representing internal standard and surrogate compounds, two (2) peaks greater than 25% of the Internal standard were identified. COMPUCHEM ORGANICS ANALYSIS DATA SHEET LIBRARY SEARCH RESULTS OF EXTRANEOUS PEAKS & ESTIMATED CONCENTRATION OF TENTATIVELY IDENTIFIED COMPOUNDS ANALYTICAL FRACTION: Base/Neutral DATA FILENAME: BC037639A14 SAMPLE #37639 SCAN ASSESSMENT* ESTIMATED ITEM NUMBER CAS # COMPOUND NAME PURITY RS 01 UK CONC.(ug/l 1 1009 13837-95-1 CYCLOHEXANE.l-METHYLENE-3- 42.9 n n 36 (-l-METHYLETHENYL)-.(R)- 2 1073 10152-71-3 CYCLOPROPANEOCTANOICACID, 46.4 n n 19 2-//2-/(2-ETHYLCYCLOPROPYL) 1.000 50.00 SPECTROSCOPIST L.M.S. DATE 11-13-83 (*) RS - REASONABLE IDENTIFICATION, RETENTION TIME COMPATIBILITY 01 - ISOMER OR SIMILAR COMPOUND UK - UNKNOWN, NOT IN NBS LIBRARY COMFUCHEM LAK RIC COMFUCHEM DATA: BC837633A14 SCANS 335 TO 1835 11/09/84 9:56:88 OUT OF 395 TO 2888 SAMPLE: 1UL §37639(11-;-83) ON 114 COUDS.: 125.8 SSI1 SSt3 SSt5 SSt7 SSt2 SS#4 SStb IS41 1824 899 RIC 819 1282 631 466 561 1571 1828 I I 668 1290 1480 1688 1388 7:36 15:86 17:38 28:88 22:36 APPENDIX D GC/MS LIBRARY SCAN DATA OFF SITE WELLS TAR LAKE EXHIBIT I. LABORATORY CHRONICLE SAMPLE IDENTIFIER: PW-1A COMPUCHEM SAMPLE NUMBER: 37634 Date Received/Refrigerated 11-07-84 Organics Extracted 11-07-84 Analyzed 1. Volatiles 11-OB-H4 11-09-84 3. Base/Neutrals 11-09-84 4. Pesticides/PCBS Mot. Requested Inorganics 1. Metals Not Requested 2. Cyanide Not Requested 3. Phenol Not Requested SAMPLE IDENTIFIER: PW-1A COMPUCHEM SAMPLE NUMBER: 37634 15 PEAK IDENTIFICATION - Volatile Exclusive of peaks representing internal standard and surrogate compounds, no peaks greater than 25% of the internal standdrd were Identified. 'L'( i. . JTM ." ,T •; I It if '. '*- V - RIC -_I I __"-: i r i vl i*^ , _- _'-* _ ll-oo t- b:::2:0u SAMPLE: 5ML#i7f34 COHJS.: If*. 51.- i ' "••*-» 131 193 SAMPLE IDENTIFIER: Prt-lA COMPUCHEM SAMPLE NJMIO: 37634 15 PEAK IDENTIFICATION - Acid Exclusive of peaks representing Internal standard and surrogate compounds, no peaks greater than 25% of the internal standard were Identified. COHPUCHEM LABS RIC COMPUCHEM DATA: AC037634A88 SCANS 225 TO 1188 11--89---S4 8:42:88 SAHPLE: 1UL OF ACID *37634 877 RIC 926 533 466 786 756 , __ 1_. I l I l 488 btfw 88u lado SCAH 5:88 7:3* 16:8e 12:38 TINE SAMPLE IDENTIFIER: PW-1A COMPUCHEM SAMPLE NUMBER: 37634 15 PEAK IDENTIFICATION - Base/Neutral Exclusive of peaks representing Internal standard and surrogate compounds, one (1) peak greater than 25't of the internal standard was identified. COMPUCHEM ORGANICS ANALYSIS DATA SHEET LIBRARY SEARCH RESULTS OF EXTRANEOUS PEAKS & ESTIMATED CONCENTRATION OF TENTATIVELY IDENTIFIED COMPOUNDS ANALYTICAL FRACTION: u.tsi.'/Neutrdl DATA FILENAME: I5C0.7634C14 SAMPLE 037634 SCAN % ASSESSMENT* ESTIMATED ITEM NUMBER CAS # COMPOUND NAME PURITY RS 01 UK CONC.(ug/l) 1 1820 6006-01-5 3,7,11-TRIDECATRIENENITRlLH, 64.4 [_xj 71 4,8,12-TRIMETHYL- 1.000 50.00 SPECTROSCOPIST R.W.H. DATE 11-12-84 (*) RS - REASONABLE IDENTIFICATION, RETENTION I [Ml i.DMl'Ar 111 ILITY 01 - ISOMEK OK SIMILAR COMPOUND UK - UNKNOWN, MOT [nj NUS LIBRARY COMPUCHEM LABS RIC TOMPUCHEM DATA: BC637634C14 SCANS 395 TO 1895 6:25:88 OUT OF 395 TO 2788 SAMPLE: lit 337634 (11-7-84) CONDS.: 125.0 SS41 SSt3 SS#5 SS#7 SSt2 SS#4 SS#b IStl 1823 898 88 RIC 1281 1828 1331 ^ 1154 I -. 985 i. ..1476 . 15711 1695 1776 —r —_^__ 1 T^ 888 1806 i2ee 1488 1689 1888 18:88 12:38 15: ee 17:38 28:86 22:36 EXHIBIT I. LABORATORY CHRONICLE SAMPLE IDENTIFIER: PW-2 COMPUCHEM SAMPLE NUMBER: 37b3b Received/Refrigerated 11-07-H4 Organics Extracted 11-07-84 Analyzed 1. Volatiles 11-08-84 2. Acids 11-09-84 3. Base/Neutrals 11-09-84 4. Pesticides/PCBS Not Requested Inorganics 1. Metals Not Rcf|iic'.t«'d 'I. Cyanide Not kcipc'stcd J. Phenol Not Kuquc-.tcii SAMPLE IDENTIFIER: PW-2 COMPUCHEM SAMPLE NUMBER: 37635 15 PEAK IDENTIFICATION - Volatile Exclusive of peaks representing Internal standard and surrogate compounds, no peaks greater than 25% of the internal standard were Identified. ft 1C ll'-oi is 7:lt:-.i-: StthrtE: 5H-.-tJ7c3f - 5JL'iidt j-i .CoS CON3S.: 767 lOC-.J-r— IS* 4 is*: >15 r , . i ••: i I J \ 13t ^ ^1- v -1—-_ A SAMPLL IDENTIFIER: PW-2 COMPUCHEM SAMP LI". NUMBER: 37635 15 PEAK IDLNriFlCAClON - Acid Exclusive of peaks representing Internal standard and surrogate compounds, one (1) peak greater than 25% of the Internal standard was Identified. OliL I UJ.J -o M QD -JJ LU n Ul O_ •"l 010 01 0U1J i.V-1 n LU . 0 o. """ O O 01 O_ a. Cfc: o 0. 1-1 '"It— LU 01 x>-«i.i- >i— o a_ LU «r •3 u~> I r- U") .1 LtJ LU 01 o i i ( U.flPUCHEf-1 LABS RIC COMPUCHEM DATA: AC837&35A-18 SCANS 225 TO 1100 ll--89-^4 3:83:80 SAMPLE: ILL OF oCIQ 137635 O1/7---S4J ON OJ* 188 156320. 125.8- SSi3 ISil SSI2 S5i4 SSt6 878 RIC 926 1813 971 M. 1645 i 480 SCAN 5:89 :36 18:86 12:38 Tlht SAMPLE IDENTIFIER: PW-2 COMPUCHEM SAMPLE NUMBER: 3/635 15 PEAK IDENTIFICATION - Base/Neutral Exclusive of peaks representing internal standard and surrogate compounds, two (2) peaks greater than 25*, of the intenidl st.uul.ird were identified. COMPUCHEM OkUANICS ANALYSIS DATA SHU f I 1HHARY SEARCH RESULTS UF I.X I KANLDUS PEAKS A ESTIMATED CONCENTRATION OF TENTATIVELY iDLNTIFlt-.U COMPOUNDS ANALYTICAL FRACTION: Base/Neutral DATA FILENAME: BC037735A14 SAMPLE 137635 SCAN ASSESSMENT* ESTIMATED ITEM NUMBER CAS jjt COMPOUND NAME PURITY RS 01 UK CONC.(ug/l) 985 55956-43-9 CYCLOHEXENE,3-(2-PROPYNYL)- 48.3 Q Q 13 1010 55956-43-9 CYCLOHEXENE,3-(2-PROPYNYL)- 42.4 n n 35 1.000 50.00 SPECTROSCOPIST R.W.H. DATE 11-12-84 (*) RS - REASONABLE IDENTIFICATION, RETENTION TIME COMPATlull. IFY 01 - 1SOMER OR SIMILAR COMPOUND UK - UNKNOWN, NOT IN NBS LIBRARY COMPUCHErl LttBS RIC COMPUCHEM DATA: BC837535A14 SCANS 335 TO 1335 11/03/34 8:80:86 OUT OF 335 TO 2880 SrtMPLE: 1UL 137635(11-7-84) OH 114 CONDS.: 12-5.6 SStl SSi3 SSf5 SSI7 ss*: SS#4 SStb 15*1 996 1825 828 RIC 1283 1674 467 737 113_». 3.. 1219 1344 1416 1621 686 886 ieee 1296 1468 1686 1306 7:30 12:38 17:36 26:6*3 EXHIBIT I. LABORATORY CHRONICLE SAMPLE IDENTIFIER: PW-28B COMPUCHEM SAMPLE NUMBER: 37637 £ate Received/Refrigerated 11-0/-I14 Organics Extracted 11-07-84 Analyzed 1. Volatile'. 1 I (til HI 2. Acids 11-09-84 3. Baso/M'.'utrals 11-09-84 4. Pestle ide-./P.M Not Requested Inorganics 1. Metals Not Requested 2. Cyanide Not Requested 3. Phenol Uot Requested SAMPLE IDENTIFIER: PW-28B COMPUCHEM SAMPLE NUMBER: 37637 15 PEAK IDENTIFICATION - Volatile Exclusive of peaks representing internal standard and surrogate compounds, no peaks greater than 25% of the internal standard were identified. Rli 11 03 8- 3:ib:uC> SAMPLE: 5 ML ft 37 CONDS.: 7CC 10.1.0- IS»4 is*: . S_*2 bc'l J I V SAMPLE IDENTIFIER: I'W-/!8U COMPUCHEM SAMPLE NUMHF.k: .»/i)37 15 PEAK IDENTIFICATION - Acid Exclusive of peaks representing internal standard and surrogate compounds, six (6) peaks greater than 25% of the internal standard were identified. LUO Kn._ .^rni j 'il-*- 01 LU liJ U Id U £1 G LI ! _J iV 010 ^JDEIDHLd ,___ 01 UJ 01 01O1 •Xii. DDnnan UJ OS a. 01 O- o o o a. Lti 01 i ^oib_ '5r>LU o Oi li. LU r~^ I— 1 il LU •~ 5 >X 1— 0 o O «N ZD •T a., • T >.J o >.t> ~r- IU • T •_> litiJ i.u O ;I LU I— •r t - 01 SSI LU UJ I LU % 8 ,i I I i I f '71 I'D ID -- ijj ID 01 >^J r-« '71 --• >•>"> UT f- I I i I I 0)0 ^ r- tt r- >3 LU I >Ji u"> u~> LO tr> -J"i 01O - UJ •X •71 Pw U"> 05 LU '71 '71 '3 iX OJ U") 1<—r COMPUCHEM LABS RIC COMPUCHEM DATA: AC837637A88 SCAMS 225 TO 1188 11.-'89/84 9:33:08 SAMPLE: 1UL OF ACID 137637 <11/7/S4) ON UNA *08 CONDS.: 125.8- SS*1 SSI3 SSf5 ISfl 5542 SS§4 SS#6 RIC 196? I if 593 680 1 :86 7:38 16:88 12:38 Tl* SAMPLE IDENTIFIER: PW-28B COMPUCHEM SAMPLE NUMBER: 37637 15 PEAK IDENTIFICATION Exclusive of peaks repruM-nl. I icj I nt.crriii I '.(..irulfird .ind '.urorj-i i." . two (2) peaks jrijitt-r than ?.l>l of the Inti.-rMil ,tin I iril were Identified oct o LUO i.n --tl &B .J U _. l _°l o-!5U5 Lr-J1 Ur-| *&, !! ArJl LU £l _^l ^ DD i "i I— LU O1 f— •^ i;r> a. 5 o. - 3 •**• Tf ij-, LU O. O1 UJ 1C H- LU lO > £ LU »C I— LUh- 3 ''-I W ,-; -o::- o Y *r •-• iS-=! a= .--. ' i— 'i a u] LU i_d LU _JLU LiJ S O O I- H H 01 1^ '.-> UJ r" ^7 '—i O - U- CD rr ? * J! J! ^ g 'i1 T T ^ o LCI r - S oi co co u"1 ff> LU 21 _ui i ice! u"1 '-• o LU (_>E «' ^ CT' COMPUCHEM LABS RIC COMPUCHEM DATA: 6C837637A14 SCANS 395 TO 1895 11/69/84 9:06:98 OUT OF 395 TO 2686 SAMPLE: 1UL §37637(11-7-84) ON #14 CONDS.: '""" SStl SS«3 SS*5 SS#7 SS*2 ' SS*4 SS16 15*1 ; L ] 9148 819 RIC 1233 632 1874 466 J 684 k l J 1163 1344 1821 ^ . _ - - « - - ft •_...._. _, _. - .-M ^ ______i ] , ( ,- -y- , Lfl 1 1 ' I ' I 688 888 1888 1288 1480 1688 1888 7:38 18:88 12:38 15:88 17:38 28:88 22:38