I
Certified Engineering & Testing Co. Inc.
25a ewrmDr , W ;- 'hJA0
ADDENDUM NO. 1 TO CETCO REPORT OF FEBRUARY 23, 1987
ENVIRONMENTAL SITE ASSESSMENT
FOR
DIGHTON INDUSTRIES
CETCO PROJECT NUMBER: 10469D OCTOBER 1, 1987
Donald 1., Rtipa7th Senior Projrrt Manager
P1u1 Dekker Senior Hydrogeologis
Pe Poenden 0e Ne:w ': 6 e - * 1 . * , I 1 1 SCANNED
DIGHTON INDUSTRIES ENVIRONMENTAL REPORT ADDENDUM EXECUTIVE OVERVIEW SEPTEMBER 30, 1987
At a meeting of DEQE officials, Dighton Associates Limited Partnership representatives and Certified Engineering and Testing Co., Inc., consultants, on August 26, 1987 the following actions were agreed upon.
1. CETCO would provide the remaining information requested at the meeting related to the 37 points cited in the DEQE letter of July 27, 1987. 'It was decided at this meeting that most of this information has already been provided.
2. Additional work on this site would be carried out. This work consists of the following:
a. Three groundwater monitoring wells will be installed in the area of the Rosemar Silver Company for the purpose of defining the extent of contamination of the soil and groundwater. Soil and groundwater will be analyzed for heavy metals, cyanide, and volatile organic compounds. r Similar analyses will be performed on samples from existing wells.
b. Wells in the area of the #6 fuel oil release will be sampled for floating product.
c. Wells down aquifer from the #6 fuel oil release will be sampled and the water from these wells analyzed for polynuclear aromatics (PNA) and other contaminants as required by the DEQE.'
d. A groundwater contour map will be created for the area.
e. No further historica data will be provided.
f. Outfalls and the river will be resampled for metals, cyanide and volatile organic compounds.
After this proposal has been reviewed by the DEQE, the time table for the activities listed above will be determined. .
1. Forward
The following is a response to a letter from DEQE to Dighton Industries Limited Partnership dated July 27, 1987. The 37 items addressed in that letter are reprinted here in boldface and replies to these items appear beneath them in regular type. Most of these replies reflect discussions held at an August 26, 1987 meeting at the DEQE Regional Office at Lakeville.
Representing DEQE at this meeting were 1) Debra KelJS-Dominick - Project Manager, 2) Robert Donovan and 3) Gerald Monte - Site Assessment. Dighton Associates Limited Partnership was represented by Michael Potter and Joseph Coelho. Certified Engineering and Testing Co., Inc. (CETCO) representatives included Paul Dekker, Jonathan Hobill, R. Wayne Crandlemere, and Donald J. Redpath.
A proposal for further site assessment also follows in which, ,again, the points to be addressed, as stated by DEQE, appear in boldface.
ii. List of Figures
FIGURES
A. Site Plan with Sampling Locations (Separate)
1. Monitoring Well Construction
2. Mount Hope Pond Sampling Locations
3. Three Mile River Sampling Locations
TABLES
1. Monitoring Well Locations and Re-numbering
2. Monitoring Well Dimensions
3. Test Pit Description
4. PID (OVA) Screening Results
5. Location of Samples
APPENDICES
1. Cyanide Analysis Methods
2. Air and Water Data
3. Lab Reports for Samples 3717 and 3636-4
4. Sample Analyses
iii. 1. Monitoring well and boring installation documentation to include, but not be limited to the following; date and time of construction, drilling method, depth, ground surface elevation, ground water elevation, well development procedure, detailed drawings of all wells including dimensions, screen slot and length.
All wells have been numbered consecutively. This means some well designations have been changed. Prior and present designations are listed in Table 1. Table 1 also gives the location and a description of each well, as well as the name of the installation contractor, and the date and time of well completion. Well locations are shown graphically on Figs. A, 2 >/ and 3 (see also 3, below). NO 0 Construction and dimensional information on the wells is compiled in Table 2 and Fig. 1.
Elevations of the ground surface and the water table of the boiler room area wells have been combined to show water table elevations relative to an arbitrary datum. These are shown on inset A of Figure A. Elevation measurements on the remaining Dighton wells are currently unavailable, but shall be obtained during future surveys (refer to the attached proposal).
2. The test pit installation log. Note the duration that the test pit was open and if the ground water was depressed.
The enclosed test pit log is designated in this addendum as Table 3. As indicated in the log, the pit was open to ambient conditions for one hour and 15 minutes. No pumping occurred.
3. A site plot plan, to scale, delineating monitoring well, sampling, underground storage tank and outfall locations. Sample numbers should correspond to those listed on the analytical data sheets.
A site plot plan drawn to scale (1" = 16') is enclosed, showing monitoring wells and the location of sampling points, underground storage tanks and outfalls. Sample points are numbered to correspond with laboratory analysis sheets. The location of floor drains, discharge into the sluiceway system and flume as well as the location of all sumps on the site is shown in Fig. A.
4. A current ground water contour map showing ground water flow direction.
In order to provide a current map, new measurements are required. The attached proposal addresses this issue.
-1- 5. Detailed descriptions of the methodologies used for the Petroleum Hydrocarbon Analysis, Total Cyanide Analysis and Free Cyanide Analysis.
Included in Appendix 1 is a description of analytical method 9 412 for the detection of cyanide. This method was not used for previous analyses, butwill apply to future cyanide studies (see Appendix 1). I -
6. A complete and in-depth discussion of this site's history to include the present and former storage, usage, treatment and disposal of oil and hazardous material/hazardous wastes and descriptions of commercial activities and industrial and manufacturing processes. A site plan noting the specific locations of those operations that use/used these materials must be included.
During the August 26, 1987 meeting, representatives of the DEQE, Dighton Associates, and CETCO decided that, due to the complicated landlord - tenant history of the site, such an endeavor would yield little additional information pertinent to the site.
7. A description of types (including generic names, chemical names, and trade names) and quantities of oil and hazardous materials/hazardous wastes used, treated, stored, disposed, or generated through past and present uses of the location.
Much of this information is available only through the review of Material Safety Data Sheeets (MSDS). Most MSDS's have been made available by the tenants on site, and are in custody of the DEQE. Additional information cannot be obtained by non-regulatory means, due to confidentiality provisions between landlord and tenants.
8. The list of past and present owners/operators of this site and other potentially liable parties as described in Section 5(a) of M.G.L., C. 21E. . , -, .r. -- - SF6'(... 1900 - 1924 Mt. Hope Finishing Company 1950's - 1973 Raytheon Company Dighton Industries, 620 Spring Street
9. The source of Figure 2 and Figure 3.
The source of Figures 2 (overall plant layout) and 3 (storm sewer system) is the Dighton Industries Master Plan Dighton records, and City of Taunton Engineering Department maps.
-2- 10. The location of all floor drains and discharges into the sluiceway system and flume, if applicable and the location of all sumps on this site.
The site plan (Fig. A) provides information on the drainage infrastructure of the site. During the August 26, 1987 meeting, it was agreed that identification of each floor drain on site would yield a level of detail unnecessarily high for the purposes of this study.
11. The location of the former private sewer system, a physical description of this system, and the date on which this system was discontinued.
After the initial studies, it was learned that sewerage from the site used to be routed through the storm drainage system. It is not known when this practice was discontinued or when the site was connected to the municipal system.
12. The HNU PI101 screening results from the installation of all borings, monitoring wells and from the test pit located in the Boiler Works Area.
Soil samples retrieved from borings were screened by means of a PID only where the presence of volatiles was expected, i.e. near the 11,000 gallon gasoline tank in the boiler room area, and near the tank located in the Rosemar courtyard. The borings which correspond to the three soil samples are associated with MW-7 for the former, and with MW-17 and MW-18 for the latter location. PID screening results are given in Table 4.
13. The depths at which evidence of oil contamination was found through visual inspections of soil samples from monitoring well numbers 8, 11 and 12.
The depths below the ground surface at which oil contaminated soil was encountered are 6 - 7 feet for MW-8, MW-11, and MW-12.
14. The date(s) of the ground water elevational readings and the sampling for free floating product from the monitoring wells in the Boiler Works Area.
Most of the wells were tested on December 17, 1986. The remaining untested wells, #'s 8, 11, and 12 (new designation) were tested on January 6, 1987.
-3- 15. The results of the Mercury analyses for sample numbers 3357-2, 3357-8, 3357-11, and 3400-1 (Phase I report).
EP Toxicity analyses on these samples showed no mercury. The detection limit for the method employed (303 F) was 0.02 mg/i, or one order of magnitude below the EP Toxicity limit for mercury. 3 16. The date of collection of sample numbers 3357-1, 3357-2, 3357-3, 3357-4, 3357-5, 3357-6, 3357-7, 3357-8, 3357-9, 3357-10, 3357-11, 3400-1 and 3400-2 (Phase I report).
All of these samples were collected on August 15, 1986, except 3400-2, which was collected on August 25, 1986.
17. The location of sample numbers 3512-1, 3512-2, 3602, 3606-8, 3636-2, 3636-3, 3636-4, 3654-1, 3654-5, 3654-6, 3717, 3746, 3781-5.
The location of these samples is given in Fig. A and in Table 5.
18. The depth of sample number 3602.
This sample was taken from the stockpiled soil from the excavation of the 11,000 gallon gas tank.
19. Clarification on the correct units for sample numbers 3542 and 3746. The laboratory report sheets state micrograms per liter (ug/l) while page ten and eleven of the report state milligrams per liter (mg/l).
The correct unit, as given in the lab report, is micrograms per literr(ug/1).
20. A determination of the correct location of sample number 3746. This sample was listed twice with two different locations noted.
Sample 3746 represents ground water from the Rosemar Sump area. The second page is in error - please delete.
21. A copy of the analysis for the material removed from the Rosemar sump.
CETCO has no access to this information.
22. A determination as to if the sediment from sample number 3400 was from the sluiceway or from the tributary
The sediment from sample 3400 was taken from the end of the sluiceway.
1 -4- 23. A determination as to which well at the Rosemar tank area sample number 3732-5 was derived from.
This sample was taken from MW-18 (new designation).
24. Provide all air and storm water screening/analyses indicated on page 15.
This information is contained in Appendix 2.
The location of the connection of the tributary from which sample number 3781-5 was taken from and the Three Mile River.
Sample 3781-5 was taken from the general area northeast of the brook dividing land identified as the Devine Creamery and land identified as belonging to Dighton Industries (not Spring Street Realty Trust). Much of this area is wetlands and the connection of this tributary to the Three Mile River may not be clear.
26. Clarification as to if sample numbers 3654-6 (pump house) and 3789-4 (Mars' outfall) were samples of the discharge into the Three Mile River or surface waters of the river at the point of discharge.
All water samples from this outfall area were from the outfall flow, not the river surface.
27. In reference to the tank removals in the Boiler Works Area: a) describe the condition of the two, 175,000 gallon, #6 oil tanks and the 11,000 gallon gasoline tank, b) describe the area of impact from the #6 oil release, c) describe the condition of the surrounding soils, d) describe the condition of the ground water, e) estimate the amount of oil pumped from the tanks, f) estimate the amount of oil pumped from the ground water and, g) estimate the the amount of soils removed.
a. The two oil tanks and the gasoline tank removed from this ? area were in fair condition. No large areas of tank &'sW failure caused by corrosion were observed.
b. The area of impact from the #6 oil release was found to be within the outer ring of ground water monitoring wells 1 through 9 (see Inset A, Fig. A).
c. The soils in the immediate area of tank removal were saturated with #6 fuel oil.
d. The ground water in the area of excavation was covered by floating #6 fuel oil during much of the removal process.
-5- e. The first tank removed was out of service and nearly empty. The second tank (closest to the boiler works) had significant quantities of oil remaining. This oil was removed, as it was commercial product and not waste oil.
f,g. This information was presented in the Hazardous Waste manifests previously provided to DEQE.
28. The location of the "primary source area" of purgeable halocarbon contamination mentioned on page fifteen of the report.
This area is delineated in inset B of Fig. A.
29. Submit the results of the additional studies related to the location and removal of the remaining sediment buildup in the sluiceway system between the "primary source area" and the pumphouse outfall area, (see page 15). As stated in the report, these areas were scheduled to be removed by February 19, 1987. Submit copies of all analyses for these materials.
Visual examination of the stormwater sewer under Buildings #47 and #49 indicated that the sediment buildup containing h'alogenated hydrocarbon extended approximately 100 feet to the southeast, to the second manway in Building #48. Investigation of all manways from this point to the outfall near the pumphouse revealed no other significant sediment buildup. S.ediment was removed from the Building 4_7Jand_#A8 area (delineated on the enlarged site plan) on or close to February 18, 1987 by McDonald & Watson Waste Oil Corporation. The sediment was placed in 55 gallon steel drums and disposed of as hazardous waste by McDonald & Watson on March 3, 1987 .(see attached copy of manifest in Appendix 2). Analyses of samples #3717 and #3636-4 are found in Appendix 3.
30. Provide the additional studies of cyanide occurrence in the sediments of the Three Mile River mentioned on page fourteen.
We propose, pursuant to the additional assessment required, to resample all areas previously sampled for cyanide. This project has not, to date, been completed.
31. Investigative sampling locations in the pumphouse storm sewer/sluiceway outfall area were not denoted on Figure 9 as stated. Explain the connection between these sample points, (sample numbers 3636-1, 3636-2, 3636- 3636-4, 3654-5, 3654-6, 3717) to the pumphouse outfall area and the rationale for choosing these locations as sampli g points.
Sample numbers 3636-1 to 3636-4 were taken from the stormwater sewer in an attempt to locate the first incidence of halocarbon contamination found at the outfall. Sample #3654-5 was taken at the manway between Buildings #74B and #47 to
-6- determine if halocarbon contamination was present at this point in the storm sewer. Sample #3654-6 was taken from the outfall of the storm sewer. Sample #3717 was taken from the area of the storm sewer under Building #47 which showed the highest levels of contamination. The overall rationale behind these sampling procedures was to trace the stormwater system back to the source of halocarbon contamination. Due to these investigations it was possible to locate the contamination between the first manway in Building #47 and the second manway in Building #48 (see Fig. A). N/o 5 r6 j swA 32. Copies of the hJ'zardous waste manifests and-analyses for the three, 55-gallon drums of material removed from the Rosemar sump, the seven, 55-gallon drums of sediment removed from the flume beneath Building Section #47, the remaining sediment in the sluiceway system between the "primary source area" and the pumphouse outfall area (see page 15), the stockpiled contaminated soil from the excavation of the two, #6 oil tanks and gasoline tank, and the two, 5-gallon pails of tetrachloroethane from the Mars Print Shop.
The material removed from the sump was disposed of by Rosemar personnel and manifests for this removal should be obtained from Rosemar management. f _gapy-ef---the-manifest-fer--the disposal of the 14 (increased from 7) drums-removedmfromunder Buildings #47 and #48 is found in Appendix 2. The stockpiled soil is still on site and is no longer part of the work supervised by CETCO. The manifests from the gasoline #6 fuel oil contaminated soil disposal have been provided with CETCO's report of February, 1987. Manifests for the disposal of the five gallon pails from the Mars Print shop are available from Mars management. This disposal was not supervised by CETCO.
33. On October 29, 1986, representatives of the Department inspected the Dighton Town Landfill, Tremont Street, Dighton. During that inspection approximately 500 cubic yards of oil contaminated soil and concrete debris was discovered. Information received by the Department through various sources identified Dighton Industries, 620 Spring Street, North Dighton, as the source of the contaminated material. On October 29, 1986, during a telephone conversation, Mr. Coelho, of your company [Dighton] confirmed that this material was removed from the above-referenced site. This material had been removed and disposed of at the town landfill by MacDonald and Watson, Inc., in violation of 310 CMR 30.000. On October 29, 1986, Mr. Michael O'Loughlin, MacDonald and Watson, Inc., informed the Department that Mr. Coelho authorized his company to remove the material from the landfill to their asphalt batching facility in Rhode Island. Mr. O'Loughlin assured the Department that the material would be transported under manifest. Mr. Joseph Furzado, Supervisor, Dighton Town Landfill, informed the Department, on October 30, 1986, that all the material had been removed from the landfill by
-7- MacDonald and Watson, Inc. Submit to the Department the copies of the hazardous waste manifests and payment receipts for this material.
All manifests for soil disposal were provided with our original reports. Our client has determined that financial records are confidential and declines to present them at this time. J4K, 4 t
34. A description of past and present land use on adjacent properties.
Past land use of adjacent properties has been largely farming and residential. No other significgnt use was reported. ('Atc- tA t %- -. yr t. 35. A list of those persons and/or corporate entities which make up the membership of Dighton Associates Limited Partnership.,V1
(Blank)
36. Copies of Material Safety Data Sheets (MSDS) for all substances manufactured, processed, used or stored at this site were not submitted to this Division as required in the Department's NOR of December 31, 1986. Copies of all MSDS's must be submitted to the Department's Division of Hazardous Waste, Southeast Regional Office, Lakeville, Massachusetts regardless as to if these forms were filed with the Department's Right-to-Know office.
At the August 26, 1987 meeting between the DEQE and Spring Street Associates, it was decided that the DEQE would obtain this information from records already on file.
37. Submit Sample Collection Reports and Sample Analysis Reports for all samples from this site. These reports must be in accordance with the Department's Minimum Standards for the Submission of Laboratory Data.
Results of all analyses done are attached in the Analytical Data Appendix (Appendix 4). c. - - Additional Assessment of the Site
The following proposed actions are intended to fulfill the requirements for the additional assessment of the site described on page 7 of the DEQE letter of July 27, 1987. The following are our reponses to DEQE's requests:
1. The extent of contamination in the soil.
There are three areas on site where soil contamination has been identified. The #6 oil tank removal location, the Rosemar sump area and the soil directly under the 100 gallon filled-in-place gasoline tank. 4 A -
The first location, the #6 oil tank removal area, has been investigated at length and the larger portion of the contaminated soil removed. We propose no further examination of soil contamination in this area at this time.
The second location, the Rosemar sump area, was investigated previously by the installation of three ground water monitoring ,?,a well and analysis of the ground water for volatil'eorganic compounds, cyanide and metals. We propose the installation of three more ground water monitoring wells constructed to EPA standards to define the areal extent of contamination. Soil will be sampled and analyzed at five foot increments to give 4 thevertical extent of contamination as the boring for well installation is advanced. These wells will be installed as shown in Fig. 4. J--4 ®r- j #4 /7t
The third area of soil contamination was found (directly under3, the 100 gallon filled-in-place gasoline tank near Building #60. Due to the limited accessibility of this area CETCO proposes that tgo_ vado_se zone monitoring_tubes be constructed of 3/4" PVC schedule 40 0.020" slot tubing capped at the top with a PVC plug. The annular space will be filled with Ottawa sand (or its equivalent) and the top 12 inches of the annulus will be 7'4+l 9 ( sealed with Bentonite to prevent the entry of surface water. The monitor will be capped with a cast iron curb box set in concrete, slightly above grade, to avoid the collection of run-off surface water. These vadose zone monitors will be-%AP& installed to a depth slightly below the bottom of the tank if possible. These two monitoring tubes will be sampled three times with an HNU PI101 organic vapor detector. Samples will be taken at five day intervals to obtain representative soil gas readings. If soil conditions prevent the use of hand boring equipment an alternate plan will be presented to the DEQE. , I L -9- 2. The extent of contamination in the ground water. Two areas of ground water contamination have been identified and a third is suspected. Wepropose to sample all. the wells in the area of the removed #6 fuel oil tanks for floating product. We also propose to sample at-least the down gradient wells from this area (monitoring wells #1, 2, 3, and 10) for . polynuclear aromatic compounds using EPA Method #610. These compounds are the most toxic components of #6 fuel oil and may have separated from the bulk of any remaining #6 oil by advection. C1- - " " el;, I re 6 The second area of ground water contamination is found at the Rosemar sump location. We propose the addition of three more ground water monitoring wells for the dual purpose of examining soil contamination and ground water quality. These wells will be sampled and analyzed for cyanide, volatile organic compounds, and metals. The proposed placement of the wells is shown on Fig. 4. -. - 4 - t : -\- r, CC The third area of .possible contamination is near the 100 gallon /underground gasoline tank located adjacent to building #60. We ,SA4 propose to wait for the vadose zone soil gas investigation results before undertaking any groundwater inves tigat on a this location. y '? 5 1 3. The extent of contamination from all discharge points (located on-site), into the Three Mile River, to include the flume area. There are three discharge points from the site into the river: the two outfalls near the pump house to the north of the boiler works and the outfall southeast of Joseph Warner Boulevard. We propose to sample all of these outfalls for volatile organic compounds (using USEPA Method #624) for cyanide and heavy ( - metals. Sediment samples from the area adjacent to the outfalls will be sampled for the same substances. 4. The extent of contamination in the sluiceway/storm sewer system. Results of the examination of outfalls and sediments described in #3 will give information on which, if any, system requires further investigation. If no active discharge is found, no further action will be taken. . -_,-: ' ,e cc **, t 5. The location of any free-floating hydrocarbons. k This will be accomplished as described in #2. f I U U V. 4 t -10- 6. Perform hydrostatic tests on all underground storage tanks and associated piping on the above-referenced property. Immediately thereafter, submit the results of such testing to this office. - -oc Y It was decided at the DEQE and Dighton Associates meeting ~2 August 26, 1987 that individual operators of these tanks would be contacted directly by the DEQE to meet this requirement. All monitoring wells must be tested, at the minimum for pH and for the presence of cyanide, volatile organic compounds and heavy metals. We propose to conduct these tests on the wells in the area of the Rosemar Silver Company facility and on down-aquifer well #1, #2, #3, and #10 in the #6 oil tank removal area. 8. Retest the Rosemar sump for the above parameters. We request that this task be presented directly to the operator of the Rosemar Silver Company facility. This sump is part of the discharge system regulated under their NPDES permit and as such is, in our view, their responsibility. 9. Determine the content of Rosemar's process discharge effluent into the sump located in the Rosemar loading dock area and into the sluiceway system that discharges into the Three Mile River. This effluent is regulated by the NPDES permit held by the Rosemar Silver Company. We propose that this request be addressed directly to the operator of the Rosemar facility. 10. Determine the content of BIW's process discharge effluent into the two concrete storage chambers which then empty into the sluiceway system that discharges into the Three Mile River. The BIW process discharge effluent is regulated by the NPDES permit held by them. We propose that this request be directed to the operators of the BIW facility. 11. Sample and analyze the outfall discharge into the tributary of the Three Mile River which receives and conveys discharges from the Rosemar sump and the southern section of the site. This point has been addressed in our response to request #3. -11- 12. A determination as to if there are any ongoing releases of hazardous materials at this site other than those permitted under the NPDES Permit Program for Rosemar Plating Company, Inc., and BIW Cable Systems, Inc. This determination will be made after analyzing all data collected in the additional assessment required by the DEQE letter of July 27, 1987. 13. A determination as to why there exists a "primary source area" of purgeable halocarbon contamination located in the flume beneath Building Section #47. At the DEQE and Spring Street Associates meeting of August 26, 1987 it was decided that this information was based on historical data no longer available and thus could not be provided. 14. An evaluation of the impact from the areas of contamination on all nearby receptors, inclusive of public and private water supplies and the Three Mile River. The impact on the Three Mile River will be assessed as additional analytical information (refer to item 3) becomes available. This information in conjunction with existent data from previous studies will be adequate to address the impact issue. -12- I I I U I I U U I FIGURES I I I I I U U I I I r*tlB I I I I CONCRETE CAP ROAD BOX - CLEAN FILL D z 0 N uJ 0 A - ANNULAR SEALANT POTENTIOMETRIC SURFACE C SCREENED INTERVAL . FILTER PACK BOTTOM CAP FIGURE 1 MONITORING WELL CROSS-SECTION 'A ci 0 K k 1 K :723 n L . 2 I-,e N '4 ) *0 I-J 'F, 0 C. bzr 65 *1 Q N ~1 9 N LsuMP t1-i c '7 gsaprn /3o41?nPtYuve /a n/~~6 * os -r{ /V .. /a. £wz A/-7 oE'Ksv-b 4oneV-S at as 4Pcrosetrt/iroW70& /41W67 S TABLES TABLE I Monitoring Wells; Dates; Locations and Designations 1986 Old Dite/Time Location Contractor New MW-1 7-30/9:15-10:20 E. Dock, B/W . Soil Ex(l) 13 MW-2 7-30/11:00-12:00 Boiler Room Soil Ex 9 Area, see map* MW-3 7-30/12:50-2:00 - Boiler Room Soil Ex 14** Area MW-4 7-30/2:30-3:30 Boiler Room Soil Ex 15** Area MW-5 7-31/10:00-12:30 Courtyard, Soil Ex 16 --- Spring and Bedford Streets MW-6 7-31/1:00-2:15 ,Rosemar Soil Ex 17 Courtyard, Tank N MW-7 7-31/2:30-3:30 Rosemar Soil Ex 18 Courtyard, Tank S MW-8 8-22/10:25-11:50 Boiler Room Carr-Dee (2) 20** Area 8-22/12:50-2:00 Boiler Room Carr-Dee 21** Area MW-1 11-21/8:45-10:00 Boiler Room Soil Ex 1' Area, see map B-2 11-21/10:10-11:10 Courtyard, Soil EX Boiler Room and Raytheon MW-3 11-21/11:15-12:00 Boiler Room Soil Ex 2 / Area, see map MW-4 11-21/ Boiler Room Soil Ex 7 Area, 11000 gas tank .1 MW-5 11-21/ Boiler Room 5 Area, see map ,, MW-6 11-24/10:30-11:45 Boiler Room 6- Area, see map MW-7 11-24/12:00-1:00 Boiler Room 4 112 4/ a Area, see map MW-8 11-24/ Boiler Room a 3 Area, see map MW-9 11-24/ Boiler Room 10 Area MW-10 12-15/10:00-11:50 Boiler Room McCue (3) 8 Area MW-11 12-15/1:15-3:45 Boiler Room McCue 11 Area MW-12 12-30/ +i-,-t- ts Boiler Room Guild (4) 12 Area MW-R 12-30/ Rosemar Guild 19 Courtyard Sump **Abandoned (1) Soil Exploration Corporation, Leominster, MA. (2) Carr-Dee Corporation, Medford, MA (3) Joseph McCue, Driller (4) Guild Drilling Co., Inc., East Providence, RI TABLE 2 Monitoring Wells; Dimensions and Measurements Dimensions (refer to Figure I for A, B, C and D) MW A (ft.) B (inch) C( D (ft.) Date 1 15 2 10 7.5 12-16-86 I 2 15 2 10 7.5 12-16-86 I 3 12 2 10 6.9 12-16-85 I 4 12 1/2 2 10 6.25 12-16-86 I 5 15 2 10 4.5-- 12-16-86 I 6 11 2 10 5.2 12-16-86 I 7 14 2 10 6.2 12-16-86 8 13 2 10 4.4 1-5-87 II 9 10 1 1/2 5 6.25 8-14-86 I 10 11 2 10 4.5 12-16-86 II 11 13 2 10 6.6 1-5-87 I 12 17 2 5 6.33 1-5-87 II 13 15 2 10 7.5 8-14-86 II 14** 10 2 5 II 15** 15 2 10 7.25 8-14-86 II 16 .10 114 2 _ 5 5.25 8-14-86 II 17 10 2 5 6.34 8-14-86 II 18 15 2 10 6.34 8-14-86 II .19 12 2 II 20** 15 1/2 1 7.50- II 21** 14 1/2 10 8.75 8-22-86 *E = Screen Slot Width I = 0.020 inch II = 0.010 inch ** = Abandoned Well 'VA 2 - >7 It., r~ 1 .1' -C ' - "2 r-~4 ) C. - r / / e.,k a -I 4: x4 4 TABLE ?q 3 A -EST Pi-7 NO_ TEST PIT FIELD LOG JOB NO. I10469n - ImcDonald- PROJECT-CONTRACTORDihton Industries Watson -- ______ADDRESS 6?o Spring St. Dihton. MA Ceified Engiacerng LOCATION Boiler Room Area TIME STARTED 1045 C CLIENT . TIME COMPLETED 1200 ENGINEER. Paul Dekker DATE Nov 13 1986 DEPTH SOIL DESCRIPTION ECAV BOULDER FIELD 0r :FFO TYy S TESTING Yel.M Sand. and Gravel- 2 -- 3 B- Blk coal ash layer 4 5 Yei. M sand and gravel, fines increase downward from 10 to 30% 9 1 10- - Bottom of pit III J1 14 -- NOTES: A piezometer (61" PVC) was installed to check waterlevel changes. It was abandoned when monitoring wells MW-1,MW-2 and MW-10 were installed. TEST PIT PLAN LEGEND PROPORTIONS I ABBREVIATIONSI EXCAVAT1O 5 BOULDER COUNT USED F - FINE EFFORT - SIZE RANGE LETTER TRC (TM - MEDIUM [E_-EASY CLA S(FATN DEI ILSTRACEIO (TER)IGNAT0 C - COARSE IA -MOOERA GNAT ION[ T % /M- FINE TO MEDIUM DDFF GT A {LITTLE(LL.) 10 - 20% [ F/C - FINE TO COARSE GROUNDIAT NORTH [" -36" jSOME (50.) 20- 355% [ -VERY RLASDGA NORUH c y. 3R"AND LA R A D 35 -5 RRGR LARGER C JAND 35 -50/% Ott-D3now4 1TIME TO v OULCty.36'ANO0LU1E=cu~d. EL. - YELL1OW READING (1WI Table 4 Monitoring Well Designation Depth (feet) H.NU Units MW-17 1.5 - 3 5 4 - 5.5 8 9 - 10.5 0 MW-18 1.5 - 3 0 4 - 5.5 2 9 - 10.5 0 14 - 15.5 0 MW-7 Approx. 5 100 e- 15 - 16 0 I U U I I Table 5 Sample # Location Figure 3512-1 Soil from Excavation of 175,000, #6 Oil Tank 3512-2 Soil from Excavation of 175,000, #6 Oil Tank 3602 Soil from Excavation of 11,000 Gas Tank 3606-8L Left Side of Pumphouse 3 Outfall Area 3606-8R Right Side of Pumphouse 3 Outfall Area 3636-2 Boiler Room A 3636-3 Diversion Gates - Summer St. A 3636-4 Raytheon Storm Sewer A Line Inset B 3654-1 Sluice E of Building 65 A 3654-5 Catch Basin E of A Building 74 B 3654-6 With 3636-1 and 3777-4 A Outfall 3717 Sluiceway Sediment A Building 47 3746 With 3777-3, MWR1 Rosemar A 3781-5 Tributary 3 U U APPENDICES I I I I I I U U U I APPENDIX 1 CYANIDE ANALYSIS METHODS Cyanide - We are presently using Methods 412B,E for total cyanide and Methods 412B,E,F for cyanide amenable to chlorination. Method 412E is used to measure free cyanide. These methods are taken from Standard Methods for the Examination of Water and Wastewater, 16th Edition, 1985. We have recently received the 3rd Edition of SW846, Test Methods for the Evaluation of Solid Waste, 1986. We will be using Method 9010 for total cyanide as soon as the reagents needed are received. Metals - Methods are again taken from Standard Methods for the Examination of Water and Wastewater, 16th Edition, 1985. Methods 303A, 303C, 303F and 304 are used depending upon analyte and detection limit needed. Petroleum Hydrocarbons are analyzed by a method developed by Lawrence Experiment Station. Water or soil is extracted using pentane; pentane is concentrated and then exchanged with carbon disulfide. This extract is then injected into a GC with a eutectic salt column using flame ionization detector. Al-1 [ ti I - CYANIDE 327 'I- 411 B. Methods for Purposes Other Than Disinfection Control In potable water treatment, chlorine can trol on trickling filters, and control of ac- oxidize constituents such as iron and man- tivated sludge bulking. In these cases, ganese for subsequent removal. In some determine the chlorine requirement in the applications, chlorine improves coagula- field. tion, flocculation, and sedimentation proc- When wastewaters are chlorinated for esses. The laboratory test involves adding reduction of such compounds as phenols chlorine to water samples and determining and cyanides, use laboratory procedures both the residual chlorine and the degree similar to those used for control of disin- of iron or magnanese oxidation as a fune- fection and potable water constituents. For tion of dosage, contact time, pH, and other controllable conditions. Alternatively, add these applications, accompany the deter- chlorine to water samples during jar tests mination of chlorine requirement by de- to determine the chlorine required for spe- termination of the constituent or property cific objectives such as improved floccula- to be controlled by chlorination. In all tion and sedimentation, cases, contact time, pH, temperature, and In wastewater treatment, chlorine can be other conditions are important controlling used for odor control, slime and insect con- factors. 'Ii I 412 CYANIDE* 1. General Discussion pending on pH and the dissociation con- "Cyanide" refers to all of the CN groups stant for molecular HCN (pK. : 9.2). In in cyanide compounds that can be deter- most natural waters HCN greatly predom- mined as the cyanide ion, CN-. by the inates.' In solutions of simple metal cya- methods used. The cyanide compounds in nides, the CN group may occur also in the I which cyanide can be obtained as CN - are form of complex metal-cyanide anions of classed as simple and complex cyanides. varying stability. Many simple metal cya- Simple cyanides are represented by the nides are sparingly soluble or almost in- formula A(CN),. where A is an alkali (so- soluble [CuCN, AgCN, Zn(CN)], but they dium, potassium. ammonium) or a metal, form a variety of highly soluble, complex and x. the valence of A, is the number of metal cyanides in the presence of alkali CN groups. In aqueous solutions of simple cvanides. I alkali cyanides, the CN group is present as Complex cyanides have a sariety of for- CN- and molecular HCN, the ratio de- mulae, but the alkali-metallic evanides nor- mally can be represented by A,M(CN), In this formula, A represents the alkali pres- *Approved b%standard Merhods Commitee. 10,5 ent v times, N the heavy metal (ferrous A1-2 328 INORGANIC NONMETALS (400) AtA and ferric iron, cadmium, copper, nickel, stable and not materially toxic; in the dark, silver, zinc, or others), and x the number acutely toxic levels of HCN are attained of CN groups; x is equal to the valence of only in solutions that are not very dilute A taken y times plus that of the heavy and have been aged for a long time. How- metal. Initial dissociation of each of these ever, these complexes are subject to exten- soluble, alkali-metallic, complex cyanides sive and rapid photolysis, yielding toxic yields an anion that is the radical HCN, on exposure of dilute solutions to M(CN) 1 -. This may dissociate further, de- direct sunlight." The photodecomposition pending on several factors, with the liber- depends on exposure to ultraviolet radia- formation of ation of CN- and consequent tion, and therefore is slow in deep, turbid, HCN. or shaded receiving waters. Loss of HCN life of mo- The great toxicity to aquatic to the atmosphere and its bacterial and known -'it is formed lecular HCN is well chemical destruction concurrent with its in solutions of cyanide by hydrolytic re- production tend to prevent increases of action of CN- with water. The toxicity of HCN concentrations to harmful levels. CN- is less than that of HCN; it usually Regulatory distinction between cyanide is unimportant because most of the free complexed with iron and that bound in less cyanide (CN group present as CN- or as stable complexes, as well as between the HCN) exists as HCN' as the pH of most natural waters is substantially lower than complexed cyanide and free cyanide or the pK, for molecular HCN. The toxicity HCN, can, therefore, be justified. to fish of most tested solutions of complex Historically, the generally accepted cyanides is attributable mainly to the HCN physicochemical technique for industrial result-ing from dissociation of the corn- waste treatment of cyanide compounds is plexes2'-5 Analytical distinction between alkaline chlorination: HCN and other cyanide species in solutions of complex cyanides is possible." - NaCN + C12 - CNCI + NaCl (1) The degree of dissociation of the various metallocyanide complexes at equilibrium, The first reaction product on chlorina- which may not be attained for a long time, tion is cyanogen chloride (CNCI), a highly increases with decreased concentration and toxic gas of limited solubility. The toxicity decreased pH, and is inversely related to of CNCI may exceed that of equal concen- 2 their highly variable stability." The zinc- trations of cyanide." At an alkaline pH, and cadmium-cyanide complexes are dis- CNCI hydrolyzes to the cyanate ion sociated almost totally in very dilute so- (CNO-), which has only limited toxicity. lutions; thus these complexes can result in There is no known natural reduction re- acute toxicity to fish at any ordinary pH. action that may convert CNO- to CN " In equally dilute solutions there is much On the other hand, breakdown of toxic less dissociation for the nickel-cyanide CNCI is pH- and time-de'pendent. At pH complex and the more stable cyanide com- 9, with no excess chlorine present, CNC plexes formed with copper (I) and silver. may persist for 24 h.'' Acute toxicity to fish of dilute solutions containing copper-cyanide or silver-cya- CNCI + 2NaOH - NaCNO nide complex anions can be due mainly or + NaCl + H,0 (2) entirely to the toxicity of the undissociated ions, although the complex ions are much CNO- can be oxidized further with less toxic than HCN." chlorine at a nearly neutral pH to CO2 and The iron-cyanide complex ions are very N,: A1-3 Vi> I-, I:t, KAa~ a:- e CYANIDE 329 2NaCNO + 4NaOH + 3Cl, - 6NaCI of precipitation chemicals to the distillation + 2CO, + N, + 2HO (3) flask or by the avoidance of ultraviolet ir- radiation. P.,,- CNO also will be converted on acidifi- The cvanogen chloride procedure is com- cvanides cation to NH4 : mon with the colorimetric test for amenable to chlorination. This test is based 2NaCNO + H,SO0, on the addition of chloramine-T and sub- + 4H2O - (NH,SO, + 2NaHCO, (4) sequent color complex formation with bar- bituric acid. Without the addition of chloramine-T, only existing CNCI is meas- The alkaline chlorination of cyanide ured. CNCl is a gas that hydrolyzes to *11 compounds is relatively fast, but depends CNO-; sample preservation is not possible. equally on the dissociation constant, which Because of this, spot testing of CNCI levels also governs toxicity. Metal cyanide com- may be best. This procedure can be adapted plexes, such as nickel, cobalt, silver, and and used when the sample is collected. gold, do not dissociate readily. The chlo- There may be analytical requirements rination reaction therefore requires more for the determination of CNO-, even time and a significant chlorine excess. though the reported toxicity level is low. i Iron cyanides, because they do not disso- On acidification, CNO- decomposes to ciate to any degree, are not oxidized by ammonia (NH,)? Molecular ammonia and chlorination. There is correlation between metal-ammonia complexes are highly the refractory properties of the noted com- toxic." plexes, in their resistance to chlorination Thiocyanate (SCN-) is not very toxic to and lack of toxicity. aquatic life? However, upon chlorination, Thus, it is advantageous to differentiate toxic CNCI is formed, as discussed between total cyanide and cyanides arne- above.:" At least where subsequent chlo- I nable to chlorination. When total cyanide rination is anticipated, the determination is determined, the almost nondissociable of SCN- is desirable. Thiocyanate is bio- cyanides, as well as cyanide bound in com- degradable; ammonium is released in this plexes that are readily dissociable and com- reaction. Thiocyanate may be analyzed in plexes of intermediate stability, are samples properly preserved for determi- measured. Cyanide compounds that are nation of cyanide; however, thiocyanate -1 amenable to chlorination include free cy- also can be preserved in samples by acid- anide as well as those complex cyanides ification with H:SO, to pH < 2. that are potentially dissociable, almost wholly or in large degree, and therefore, 2. Cyanide in Solid Waste potentially toxic at low concentrations, a. Soluble cyanide: Determination of sol- even in the dark. The chlorination test pro- uble cyanide requires sample leaching with cedure is carried out under rigorous con- distilled water until solubility equilibrium I ditions appropriate for measurement of the is established. One hour of stirring in dis- more dissociable forms of cyanide. tilled water should be satisfactory. Cyanide Alternatively, the free and potentially analysis is then performed on the leachate. dissociable cvanides also may be estimated Low cyanide concentration in the leachate when using the weak acid dissociable pro- may indicate presence of sparingly soluble cedure. These methods depend on a rig- metal cyanides. The cyanide content of the orous distillation, but the solution is only leachate is indicative of residual solubility slightly acidified, and elimination of iron of insoluble metal cyanides in the waste. I cyanides is insured by the earlier addition High levels of cyanide in the leachate Al-4 p.,4.. A..~ f7~ - ItA.,,A .4 * r , . 'It J(*SJ i-i. - I q1 330 INORGANIC NONMETALS (400) indicate soluble cyanide in the solid waste. convert cyanide to nitrile. The absorption When 500 mL distilled water are stirred liquid is analyzed by either a titrimetric, into a 500-mg solid waste sample, the cy- colorimetric, or cyanide-ion-selective elec- anide concentration (mg/L) of the leachate trode procedure: multiplied by 1000 will give the solubility 1) The titration method (C) is suitable level of the cyanide in the solid waste in for cyanide concentrations above 1 mg/L. milligrams per kilogram. The leachate may 2) The colorimetric method (D) is suit- be analyzed for total cyanide and/or cya- able for cyanide concentrations to a lower nide amenable to chlorination. limit of 20 pg/L. Analyze higher concen- b. Insoluble cyanide: The insoluble cya- trations by diluting either the sample before nide of the solid waste can be determined distillation or the absorber solution before with the total cyanide method by placing colorimetric measurement. a 500-mg sample with 500 mL distilled 3) The ion-selective electrode method water in the distillation flask and in general (E) using the cyanide ion electrode is ap- following the distillation procedure (Sec- plicable in the concentration range of 0.05 tion 412B). In calculating, multiply by to 10 mg/L. 1000 to give the cyanide content of the solid b. Cyanide amenable to chlorination: sample in milligrams per kilogram. Insol- 1) Distillation of two samples is required, uble iron cyanides in the solid can be one that has been chlorinated to destroy leached out earlier by stirring a weighed all amenable cyanide present and the other sample for 12 to 16 h in a 10% NaOH unchlorinated. Analyze absorption liquids solution. The leachate and wash waters of from both tests for total cyanide. The ob- the solid waste will give the iron cyanide served difference equals cyanides amenable content with the distillation procedure. to chlorination. Prechlorination will have eliminated all cy- 2) The colorimetric method, by conver- anide amenable to chlorination. Do not ex- sion of amenable cyanide and SCN- to pose sample to sunlight. CNCI and developing the color complex with barbituric acid, is used for the deter- 3. Selection of Method mination of the total of these cyanides a. Total cyanide after distillation: After (412G). Repeating the test with the cyanide removal of interfering substances, the metal masked by the addition of formaldehyde cyanide is converted to HCN gas, which is provides a measure of the SCN- content. distilled and absorbed in sodium hydroxide When subtracted from the earlier results (NaOH) solution." Because of the catalytic this provides an estimate of the amenable decomposition of cyanide in the presence CN- content. This method is useful for of cobalt at high temperature in a strong natural and ground waters and clean metal acid solution,"," cobalticyanide is not re- finishing, heat treating, and sanitary ef- covered completely. Indications are that fluents. cyanide complexes of the noble metals, i.e., 3) The weak acid dissociable cyanides gold, platinum, and palladium, are not re- procedure also measures the cyanide ame- covered fully by this procedure either. Dis- nable to chlorination by freeing HCN from tillation also separates cyanide from other the dissociable cyanide. After being col- color-producing and possibly interfering lected in a NaOH absorption solution, organic or inorganic contaminants. Sub- HCN may be determined by one of the sequent analysis is for the simple salt, so- three finishing procedures given for the to- dium cyanide (NaCN). Some organic tal cyanide determination. cyanide compounds, such as nitriles, are It should be noted that although cyanide decomposed by the distillation. Aldehydes amenable to chlorination and weak acid A1-5 - 4 ) I 1.II IJ~ii ..... Hliii' ][,~t<.&q-~ CYANIDE/ Sample Pretreatment 331 IIIIkCA.4.v dissociable cyanide appear to be identical, cyanide amenable to chlorination is pres- certain industrial effluents (e.g., pulp and ent. The test also may be used to estimate paper. petroleum refining industry ef- the CNCI content at the time of sampling. fluents) contain sorne poorly understood e. Cyanate: CNO- is converted to an- substances that may produce interference. monium carbonate, (NH 4 ),CO;, by acid hy- 2.,-.'-- Application of the procedure for cyanide drolysis at elevated temperature. Ammonia -A;.- amenable to chlorination yields negative (NH 3) is determined before the conversion values. For natural waters and metal-fin- of the CNO- and again afterwards. The ishing effluents, the direct colorimetric de- CNO- is estimated from the difference in termination appears to be the simplest and NH, found in the two tests 2 ' Measure most economical. NH, by either: c. Cvanogen chloride: The colorimetric 1) The selective electrode method, using method for measuring cyanide amenable to the NH, gas electrode; or chlorination may be used, but omit the 2) The colorimetric method, using direct chloramine-T addition. The spot test also nesslerization or the phenate method for may be used. NH, (Section 417B or C). d. Spot test for sample screening: This f Thiocyanate: Use the colorimetric de- procedure allows a quick sample screening termination with ferric nitrate as a color- to establish whether more than 50 ig/L producing compound. 412 A. Preliminary Treatment of Samples I CAUtO N- Use care in manipulatingcy- (NaAsOD/L sample and retest. Repeat ad- anide-conrainingsamples because of toxic- dition if necessary. Sodium thiosulfate also its. Process in a hood or other well-ventilated may be used, but avoid an excess greater area. Avoid contact, inhalation,or ingestion. than 0.1 g NaS 20 3/L. Manganese dioxide, nitrosyl chloride, etc., if present, also may 1. General Discussion cause discoloration of the test paper. If pos- The nature of the preliminary treatment sible, carry out this procedure before pre- will vary according to the interfering sub- serving sample as described below, If the I stance present. Sulfides, fatty acids, and following test indicates presence of sulfide, oxidizing agents are removed by special oxidizing compounds would not be ex- procedures. Most other interfering sub- pected. I I stances are removed by distillation. The Oxidized products of sulfide convert importance of the distillation procedure CN- to SCN- rapidly, especially at high cannot be oxeremphasized. pHA' Test for S2- by placing a drop of sample on lead acetate test paper previ- 2. Preservation of Samples ously moistened with acetic acid buffer so- Oxidizine agents, such as chlorine, de- lution, pH 4 (Section 408B.3e). Darkening II compose most cyarndes. Test by placing a of the paper indicates presence of S2-. Add drop of sample on a strip of potassium lead acetate, or if the S2- concentration is iodide (KI)-starch paper previously mois- too high, add powdered lead carbonate III tened with acetate buffer solution, pH 4 [Pb(CO3).J to avoid significantly reducing (Section 40S13.3e). If a bluish discoloration pH. Repeat test until a drop of treated is noted, add 0. 1 g sodium arsenite sample no longer darkens the acidified lead A 1 - 6 .3 ,'.vf A '-C -4j IA ~? <3 - I .- ,, As 332 INORGANIC NONMETALS (400) U -1 k" acetate test paper. Filter sample before rais- to 7.0. (CAUTION-Perform this operation ing pH for stabilization. When particulate, in a hood as quickly as possible). Immedi- 'r~ S '4 J~- 4/ metal cyanide complexes are suspected fil- ately extract with iso-octane, hexane, or ter solution before removing S2 - Recon- CHCI, (preference in order named). Use a A stitute sample by returning filtered solvent volume equal to 20% of sample particulates to the sample bottle after Sz volume. One extraction usually is adequate removal. Homogenize particulates before to reduce fatty acid concentration below analyses. the interference level. Avoid multiple ex- Aldehydes convert cyanide to cyanohy- tractions or a long contact time at low pH drin. Longer contact times between cya- to minimize loss of HCN. When extraction nide and the aldehyde and the higher ratios is completed, immediately raise pH to > 12 of aldehyde to cyanide both result in in- with NaOH solution. creasing losses of cyanide that are not re- d. Carbonatein high concentration may versible during analysis. If the presence of affect distillation by causing excessive gas- aldehydes is suspected, stabilize with ing when acid is added. The carbon dioxide NaOH at time of collection and add 2 mL (CO2 ) released also may reduce signifi- 3.5% ethylene diamine solution per 100 cantly the NaOH content in the absorber. mL of sample. When sampling effluents such as coal Because most cyanides are very reactive gasification wastes, atmospheric emission and unstable, analyze samples as soon as scrub waters, and other high-carbonate possible. If sample cannot be analyzed im- wastes, use hydrated lime to stabilize the mediately, add NaOH pellets or a strong sample slowly add with stirring to raise NaOH solution to raise sample pH to 12 pH to 12 to 12.5. Decant sample into sam- to 12.5 and store in a closed, dark bottle ple bottle after precipitate has settled. in a cool place. e. Other possible interferences include To analyze for CNCl collect a separate substances that might contribute color or sample and omit NaOH addition because turbidity. In most cases, distillation will CNC is converted rapidly to CNO- at remove these. high pH. Make colorimetric estimation im- Note, however, that distillation requires mediately after sampling. using sulfuric acid with various reagents. With certain wastes, these conditions may 3. interferences result in reactions that otherwise would not a. Oxidizing agents may destroy most of occur in the aqueous sample. As a quality the cyanide during storage and manipula- control measure, periodically conduct ad- tion. Add NaAsO2 or Na2S2 ,O as directed dition and recovery tests with industrial above; avoid excess Na2 S2 O,. waste samples. b. Sulfide will distill over with cyanide f Aldehydes convert cyanide to cyano- and, therefore, adversely affect colorimet- hydrin, which forms nitrile under the dis- ric, titrimetric, and electrode procedures. tillation conditions. Only direct titration Test for and remove S2 as directed above. without distillation can be used, which re- Treat 25 mL more than required for the veals only non-complex cyanides. Formal- distillation to provide sufficient filtrate vol- dehyde interference is noticeable in ume. concentrations exceeding 0.5 mg/L. Use c. Fatty acids that distill and form soaps the following spot test to establish absence under alkaline titration conditions make or presence of aldehydes (detection limit the end point almost impossible to detect. 0.05 mg/L):6 2 Remove fatty acids by extraction." Acidify 1) Reagents sample with acetic acid (1 + 9) to pH 6.0 a) MBTH indicator solution: Dissolve A1-7 A CYANIDE / Sample Pretreatment 333 II 0.05 g 3-methyl, 2-benzothiazolone hydra- with organic compounds?" Also. NO, zone hydrochloride in 100 mL water. Filter may reduce to NO: , which interferes. To 1 if turbid. avoid NO,- interference, add 2 g sulfamic 4, b) Ferricchloride oxidizing solution: Dis- acid to the sample before distillation. Ni- solve 1.6 g sulfamic acid and I g trate also may interfere by reacting with FeCl3 -6HO in 100 mL water. SCN3 c) Ethylene diamine solution, 3.5%: Di- i. Some sulfur compounds may decom- is -. -. ,-t., .,; lute 3.5 mL pharamaceutical-grade anhy- pose during distillation, releasing S, HS, 1l drous NH 2CHCH2 NH2 to 100 mL with or SO,. Sulfur compounds may convert cy- water. anide to thiocyanate and also may interfere 2) Procedure-If the sample is alkaline, with the analytical procedures for CN-. add I + I H:SO4 to 10 mL sample to adjust To avoid this potential interference, add 50 pH to less than 8. Place I drop of sample mg PbCO, to the absorption solution be- and I drop distilled water for a blank in fore distillation. Filter sample before pro- separate cavities of a white spot plate. Add ceeding with the colorimetric or titrimetric I drop MBTH solution and then 1 drop determination. FeCl 3 oxidizing solution to each spot, Al- Absorbed SO2 forms Na,SO, which con- low 10 min for color development. The sumes chloramine-T added in the colori- color change will be from a faint green- metric determination. The volume of yellow to a deeper green with blue-green chloramine-T added is sufficient to over- to blue at higher concentrations of alde- come 100 to 200 mg SO-/L. Test for hyde. The blank should remain yellow. presence of chloramine-T after adding it by To minimize aldehvde interference, add placing a drop of sample on KI-starch test 2 mL of 3.5% ethylene diamine solution/ paper; add more chloramine-T if the test 100 mL sample. This quantity overcomes paper remains blank, or use Method E. the interference caused by up to 50 mg/L Some wastewaters, such as those from 1I formaldehyde. coal gasification or chemical extraction When using a known addition in testing, mining, contain high concentrations of sul- 100% recovery of the CN- is not neces- fites. Pretreat sample to avoid overloading sarily to be expected. Recovery depends on the absorption solution with SO-. Titrate the aldehyde excess, time of contact, and a suitable sample iodometrically (Section sample temperature. 421) with dropwise addition of 30% H2O, g. Glucose and other sugars, especially at solution to determine volume of H,O, the pH of preservation, lead to cyanohydrin needed for the 500 mL distillation sample. formation by reaction of cyanide with al- Subsequently, add HO2 dropwise while dose." Reduce cyanohydrin to cyanide stirring, but in only such volume that not with ethylene diamine (seefabove). MBTH more than 300 to 400 mg SO. -/L will 'F is not applicable. remain. Adding a lesser quantity than cal- A. Nitrite may form HCN during distil- culated is required to avoid oxidizing any lation in Methods B, F, and K, by reacting CN~ that may be present. A1-8 11. A4 .1 C, *., Ut 334 INORGANIC NONMETALS (400) 412 B. Total Cyanide after Distillation ' q 1. General Discussion imate the required dilution. Add 10 mL NaOH solution to the gas scrubber and Hydrogen cyanide (HCN) is liberated dilute, if necessary, with distilled water to from an acidified sample by distillation and obtain an adequate liquid depth in the ab- purging with air. The HCN gas is collected sorber. Do not use more than 225 mL total by passing it through an NaOH scrubbing volume of absorber solution. When S2 - solution. Cyanide concentration in the generation from the distilling flask is an- scrubbing solution is determined by titri- ticipated add 50 or more mg powdered metric, colorimetric, or potentiometric pro- PbCO, to the absorber solution to precip- cedures. itate S 2-. Connect the train, consisting of boiling flask air inlet, flask, condenser, gas 2. Apparatus washer, suction flask trap, and aspirator. The apparatus is shown in Figure 412:1. Adjust suction so that approximately I air It includes: bubble/s enters the boiling flask. This air a. Boiling flask, I L, with inlet tube and rate will carry HCN gas from flask to ab- provision for water-cooled condenser. sorber and usually will prevent a reverse b. Gas absorber,with gas dispersion tube flow of HCN through the air inlet. If this equipped with medium-porosity fritted air rate does not prevent sample backup in outlet. the delivery tube, increase air-flow rate to c. Heating element, adjustable. 2 air bubbles/s. Observe air purge rate in d. Ground glass STjoints, TFE-sleeved the absorber where the liquid level should or with an appropriate lubricant for the be raised not more than 6.5 to 10 mm. boiling flask and condenser. Neoprene Maintain air flow throughout the reaction. stopper and plastic threaded joints also b. Add 2 g sulfamic acid through the air may be used. inlet tube and wash down with distilled water. 3. Reagents c. Add 50 mL 1 + 1 H2 SO, thro'ugh the air inlet tube. Rinse tube with distilled a. Sodium hydroxide solution: Dissolve water and let air mix flask contents for 3 40 g NaOH in water and dilute to 1 L. min. Add 20 mL MgCl 2 reagent through b. Magnesium chloride reagent: Dissolve air inlet and wash down with stream of 510 g MgCI .6H 0 in water and dilute to 2 2 water. A precipitate that may form redis- 1 L. solves on heating. c. Sulfuric acid, H2SO,4 1 + 1. d. Heat with rapid boiling, but do not d. Lead carbonate, PbCO,, powdered. flood condenser inlet or permit vapors to e. Sulfamic acid, NH SO H. 2 3 rise more than halfway into condenser. Ad- equate refluxing is indicated by a reflux rate 4. Procedure of 40 to 50 drops/min from the condenser a. Add 500 mL sample, containing not lip. Reflux for at least I h. Discontinue more than 10 mg CN /L (diluted if nec- heating but continue air flow. Cool for 15 essary with distilled water) to the boiling min and drain gas washer contents into a flask. If a higher CN- content is antici- separate container. Rinse connecting tube pated, use the spot test (412J) to approx- between condenser and gas washer with A1-9 TW" CYANIDE /Total CN after Distilation 335 Alihn Water- Cooled Condenser 0At I Heating 3 8-mm > 2 0 0-mm Mantle Test Tube Figure 412:A. Canide distillation apparatus. distilled water, add rinse water to drained Use titration, the electrode probe method, I liquid, I and dilute to 250 mL in a volumetric or the spot test to approximate flask. CN' con- tent. Alternatively, use the cyanide-selec- e. Determine cyanide content by the ti- tive electrode in the concentration range tration method (C) if cyanide concentra- 0.05 to 10 mg CN-/L (Method E). tion exceeds I mg/L, by the colorimetric f Distillation gives quantitative recovery method (D) if the cyanide concentration is of even refractory cyanides such as iron less, or by dilution to reduce the concen- complexes. To obtain complete recovery tration into the applicable range of (412D.4). cobalticyanide use ultraviolet radiation A1-9 336 INORGANIC NONMETALS (400) pretreatment. If incomplete recovery is g. As a quality control measure, period- suspected, distill again by refilling the gas ically test apparatus, reagents, and other washer with a fresh charge of NaOH so- potential variables in the concentration lution and refluxing 1 h more. The cyanide range of interest. As an example a mini- from the second reflux, if any, will indicate mum 98% recovery from 1 mg CN-/L completeness of recovery. standard should be obtained. 412 C. Titrimetric Method 1. General Discussion c. Sodium hydroxide dilution solution: Dissolve 1.6 g NaOH in I L distilled water. a. Principle: CN~ in the alkaline distil- late from the preliminary treatment pro- cedure is titrated with standard silver nitrate (AgNO ) to form the soluble cya- 3 4. Procedure nide complex, Ag(CN){. As soon as all and a small ex- CN- has been complexed a. From the absorption solution take a cess of Ag* has been added, the excess Ag* measured volume of sample so that the is detected by the silver-sensitive indicator, titration will require approximately 1 to 10 p-dinethylaminobenzalrhodanine, which to 250 mL using immediately turns from a yellow to a mL AgNO, titrant, Dilute salmon color." The distillation has pro- the NaOH dilution solution or to some vided a 2:1 concentration. The indicator is other convenient volume to be used for all sensitive to about 0.1 mg Ag/L. If titration titrations. For samples with low cyanide shows that CN- is below 1 mg/L, examine concentration (;5 mg/L) do not dilute. another portion colorimetrically or poten- Add 0.5 mL indicator solution. tiometrically. b. Titrate with standard AgNO, titrant to the first change in color from a canary yellow to a salmon hue. Titrate a blank 2. Apparatus containing the same amount of alkali and Koch microburet, 10-mL capacity. water. As the analyst becomes accustomed to the end point, blank titrations decrease 3. Reagents from the high values usually experienced a. Indicator solution: Dissolve 20 mg p- in the first few trials to I drop or less, with dimethylaminobenzalrhodanine in 100 mL a corresponding improvement in precision. acetone. b. Standardsilver nitrate titrant:Dissolve 3.27 g AgNO, in 1 L distilled water. Stand- ardize against standard NaCl solution, us- 5. Calculation ing the argentometric method with K2CrO4 indicator, as directed in Chloride, Section B) x 1000 407A. (A - mL original sample Dilute 500 mL AgNO, solution accord- ing to the titer found so that 1.00 mL is 250 mL equivalent to 1.00 mg CN-. portion used N& Al-10 XI fd ~s IIJ~ CYANIDE/ Colorimetric Method 337 where: 2%, Extraction and rernoval of S or ox- idizing agents tend to increase the coefli- A - mL standard AgNO, for sample and cient of variation to a degree determined B = mL standard AgNO, for blank. by the amount of manipulation and the type of sample. The limit of sensitivity is 6. Precision and Accuracy approximately 0.1 mg CN /L, but at this * ~ - concentration the end point is indistinct. For samples containing more than I mg * . .- **.5~$ -. ~~~0 - CN-/L that have been distilled or for rel- At 0.4 mg/L the coefficient of variation is atively clear samples without significant in- four times that at CN- concentration levels terference, the coefficient of variation is > 1.0 mg/L. 412 D. Colorimetric Method 1. General Discussion h Stock cyanide solution: Dissolve ap- a. Principle: CN - in the alkaline distil- proximately 1.6 g NaOH and 2.51 g KCN late from preliminary treatment is con- in 1L distilled water. (CAUu IN-KCA is verted to CNCl by reaction with highly toxic; avoid contact or inhalation.) chloramine-T at pH <8 without hydro- Standardize against standard silver nitrate lyzing to CNO-.* (CAUTION-CNC/ is a (AgNO) titrant as described in Section toxic gas: avoid inhalation.) After the re- 412C.4, using 25 mL KCN solution. Check action is complete, CNCI forms a red-blue titer weekly because the solution gradually dye on addition of a pyridine-barbituric loses strength; I mL = I mg CN-. acid reagent. If the dye is kept in an c. Standard cyanide solution: Based on aqueous solution, the absorbance is read at the concentration determined for the KCN 578 nm. To obtain colors of comparable stock solution ( 3b) calculate volume re- intensity, have the same salt content in quired (approximately 10 mL) to prepare sample and standards. 1 L of a 10 Mg CN-/mL solution. Dilute b. Interference: All known interferences with the NaOH dilution solution. Dilute are eliminated or reduced to a minimum 10 mL of the 10 pg CN-/mL solution to by distillation. 100 mL with the NaOH dilution solution; 2, Apparatus 1.0 mL = 1.0 Mg CN-. Prepare fresh daily Colorimetric equipment: One of the fol- and keep in a glass-stoppered bottle. (CAU- lowing is required: TION-Toxic; take care to avoid ingestion.) a. Spectrophotometer,for use at 578 nm, d. Pyridine-barbituricacid reagent: Place providing a light path of 10 mm or longer. 15 g barbituric acid in a 250-mL volumetric b, Filter phorometer, providing a light flask and add just enough water to wash path of at least 10 mm and equipped with sides of flask and wet barbituric acid: Add a red filter having maximum transmittance 75 mL pyridine and mix. Add 15 mL conc at 570 to 580 nm. hydrochloric acid (HCI), mix, and cool to 3. Reagents room temperature. Dilute to mark with a. Chloramine-T solution: Dissolve 1.0 g water and mix. This reagent is stable for white, water-soluble powder in 100 mL up to I month; discard if a precipitate de- water. Prepare weekly and store in refrig- velops. erator. e. Sodium dihydrogen phosphate. 3N.- I Al-li E~. rr~~-- m - .S ~ . .1 ~ .,., ~ <;~ K~C1'~t t. - -mm . M338 INORGANiC NONMETALS (400) Dissolve 138 g NaH,PO4 H2 0 in I L dis- Measure absorbance with the photome- tilled water. Refrigerate. ter at 578 nm after 8 min but within 15 f Sodium hydroxide dilution solution: min from the time of adding the pyridine- Dissolve 1.6 g NaOH in 1 L distilled water. barbituric acid reagent. Even with the spec- ified time of 8 to 15 min there is a slight 4. Procedure change in absorbance. To minimize this, a. Preparationof calibration curve: Pre- standardize time for all readings. Using the pare a blank of NaOH dilution solution. calibration curve and the formula in 5 From the standard KCN solution prepare below, determine CN- concentration in a series of standards containing from 0.2 original sample. to 6 p±g CN- in 20 mL solution using the 5. Calculations NaOH dilution solution for all dilutions. Treat standards in accordance with S b below. Plot absorbance of standards against CN-, mg/L = C x D CN- concentration (micrograms). Recheck calibration curve periodically and each time a new reagent is prepared. where: calibration curve (50 On the basis of the first calibration curve, A = ig CN - read from mL final volume), prepare additional standards containing B = total volume of absorbing sorution from less than 0.2 and more than 6 skg CN- to the distillation, mL, determine the limits measurable with the C = volume of original sample used in the photometer being used. distillation, mL, and b. Color development: Adjust photometer D = volume of absorbing solution used in to zero absorbance each time using a blank colorimetric test, mL. consisting of the NaOH dilution solution and all reagents. Take a portion of absorp- 6. Precision tion liquid obtained in Method B, such that solution the CN- concentration falls in the meas- The analysis of a mixed cyanide urable range, and dilute to 20 mL with containing sodium, zinc, copper, and silver NaOH dilution solution. Place in a 50-mL cyanides in tap water gave a precision volumetric flask. Add 4 mL phosphate within the designated range as follows: buffer and mix thoroughly. Add 2.0 mL ST = 0.115X + 0.031 chloramine-T solution and swirl to mix. Immediately add 5 mL pyridine-barbituric where: acid solution and swirl gently. Dilute to Sr = overall precision and mark with water; mix well by inversion. X = CN- concentration, mg/L. 412 E. Cyanide-Selective Electrode Method 1. General Discussion with a double-junction reference electrode and a pH mete having an expanded mil- CN- in the alkaline distillate from the livolt scale, or a specific ion meter. This preliminary treatment procedures can be method can be used to determine CN - con- determined potentiometrically by using a centration in place of either the colorimet- CN--selective electrode in combination ric or titrimetric procedures in the Al-12 i U. 339 CYANIDE/ Selecfive Electrode Method well on a magnetic stirrer at 25*C, main- concentration range of 0.05 to 10 mg CN / as closely as possible the same stir- 1.' " if the CN -selective electrode taining for all solutions, method is used, the previously described ring rate progress from the lowest to the titration screening step can be omitted. Always 'P highest concentration of standard because only 2. Apparatus otherwise equilibrium is reached slowly. The electrode membrane dissolves pH neter or speciftc- a. Expanded-scale in solutions of high CN- concentration; do ion meter. not use with a concentration above 10 mg/ electrode. b. Cyanide-ion-selective L. After making measurements remove double-junction. c. Reference electrode, electrode and soak in water. with TFE-coated stir- d. Magnetic mixer After equilibrium is reached (at least 5 ring bar. min and not more than 10 min), record potential (millivolt) readings and plot CN- 3. Reagents concentrations versus readings on semi- a. Stock standard cyanide solution: See logarithmic graph paper. A straight line I Section 412D.3b. with a slope of approximately 59 mV per b. Sodium hydroxide diluent: Dissolve decade indicates that the instrument and 1.6 g NaOH in water and dilute to 1 L. electrodes are operating properly. Record c. Intermediate standard cyanide solu- slope of line obtained (millivolts/decade of tion: Dilute a calculated volume (approx- concentration), The slope may vary some- imately 100 mL) of stock KCN solution, what from the theoretical value of 59.2 mV based on the determined concentration, to per decade because of manufacturing var- 1000 mL with NaOH diluent. Mix thor- iation and reference electrode (liquid-junc- ~~,2 oughly: I mL = 100 pg CN-. tion) potentials, The slope should be a solution: Di- for calculating . kv. d. Dilute standard cyanide straight line and is the basis standard CN- lute 100.0 mL intermediate sample concentration. 0%- solution to 1000 mL with NaOH diluent; b. Measurement of sample: Place 100 mL 1.00 mL = 10.0 Lg CN-. Prepare daily of absorption liquid obtained in Section and keep in a dark, glass-stoppered bottle. 412B.4d into a 250-mL beaker. When e. Potassium nitrate solution: Dissolve measuring low CN- concentrations, first L. small 100 g KNO3 in water and dilute to I rinse beaker and electrodes with a Adjust to pH 12 with KOH. This is the volume of sample. Immerse CN~ and dou- I outer filling solution for the double-junc- ble-junction reference electrodes and mix tion reference electrode. on a magnetic stirrer at the same stirring rate used for calibration. After equilibrium 4. Procedure is reached (at least 5 min and not more record values indicated on a. Calibration: Use the dilute and inter- than 10 min), found from graph prepared mediate standard CN solutions and the ion meter or concentration as di- NaOH diluent to prepare a series of three as above. Calculate standards, 0.1, 1.0, and 10.0 mg CN-/L rected below. Transfer approximately 100 mL of each of I these standard solutions into a 250-mL with a small portion of beaker prerinsed 5. Calculations standard being tested. Immerse CN- and double-junction reference electrodes. Mi X A x B mg CN~ /L *Orion Modcl 94-06A or equivalent. Al-13 11 ax-'' *1 340 INORGANIC NONMETALS (400) where: linear within its designated range and may A = mg CN- /L found from meter reading be expressed as follows: or graph, B = total volume of absorption solution Reagent water: Sr = O.06X + 0.0016 after dilution, mL, and Water matrix: S, = 0.05X - 0.0176 C = volume of original sample used in the distillation, mL. where: S, = overall precision and 6. Precision X = concentration, mg CN -L. The precision of the CN--ion-selective electrode method using the absorption so- The difference of overall precision from lution from total cyanide distillation has pooled single-operator precision was not been found in collaborative testing to be statistically significant. 412 F. Cyanides.Amenable to Chlorination after Distillation 1. General Discussion for cyanide after chlorination than before chlorination. This may lead to a negative This method is applicable to the deter- value for cyanides amenable to chlorination mination of cyanides amenable to chlorin- after distillation for wastes from, for ex- ation, to determine the dissociable CN- petroleum refin- content of the sample. ample, the steel industry, ing, and pulp and paper processing. Where After part of the sample is chlorinated such interferences are encountered use to decompose the cyanides, both the chlo- Method 412H for determining dissociable rinated and the untreated sample are sub- cyanide. jected to distillation as described in Section 412B. The difference between the CN- 2. Apparatus concentrations found in the two samples is expressed as cyanides amenable to chlorin- a. Distillation apparatus: See Section ation. 412B.2. The titration procedure may be used b. Apparatusfor determining cyanide by when it is known that the concentration of either the titrimetric method, Section cyanides is more than 1 but less than 10 412C.2, the colorimetric method, Section mg/L. With higher concentrations, use a 412D.2, or the electrode method, Section smaller portion as described in 412C.4a. 412E.2. Use a colorimetric determination when the cyanides are known to be I mg/L or less. 3. Reagents The cyanide-selective electrode method is a. All reagents listed in Section 412B.3. useful in the concentration range of 0.05 b. All reagents listed in Section 412C.3, to 10 mg CN-/L. For estimation of the 412D.3 or 412E 3, depending on method concentration of cyanides amenable to of estimation. chlorination use the spot test procedure c. Calcium hypochlorite solution: Dis- (412J). solve 5 g Ca(OCI), in 100 mL distilled Some unidentified organic chemicals water. Store in an amber-colored glass bot- may oxidize or form breakdown products tle in the dark. Prepare monthly. during chlorination, giving higher results d. Potassium iodide(KI)-starchtest paper. K -14 .4 CYANIDE /Amenable to Chlornation without Oistillation 341 4. Procedure where: I G - mg CN / L found in unchlonnated into two equal parts II a. Divide sample portion of sample and and chlorinate one as in' b below. Analyze 1 - mg CN /L found in chlorinaied ponr both portions for CN . The difference in ion of sample. determined concentrations is the cyanide amenable to chlorination. For samples containing significant quan- .h.. b. Add Ca(OCl): solution dropwise to tities of iron cyanides, it is possible that sample while agitating and maintaining pH the second distillation will give a higher between 11 and 12 by adding NaOH so- value for CN than the test for total cy- lution. Test for chlorine by placing a drop anide, leading to a negative result When 4-. .. of treated sample on a strip of KI-starch the difference is within the precision limits paper. A distinct blue color indicates suf- of the method, report. "no determinable ficient chlorine (approximately 50 to 100 quantities of cyanide amenable to chlorin- mg Cl:/L. Maintain excess residual chlo- ation." If the difference is greater than the rine for i h while agitating. If necessary, precision limit, ascertain the cause such as add more Ca(OCl), and/or NaOH. presence of interferences, manipulation of c. Add approximately 500 mg/L sodium the procedure, etc., or use Method 412H. thiosulfate (NaS2 0 3) as crystals to reduce residual chlorine. Test with KI-starch pa- 6. Precision per; there should be no color change. Add Precision, with the titrimetric finish, for approximately 0.1 g/L more Na:SO, to cyanides amenable to chlorination was de- ensure a slight excess. termined from a mixed cyanide solution d. Minimize sample exposure to ultra- containing sodium, zinc, copper. and silver violet radiation before distillation. cyanides and sodium ferrocyanide. The e. Distill both chlorinated and unchlor- precision of the method within its desig- inated samples as in Section 412B. Test nated range may be expressed as follows: according to Methods C. D. or E. 5. Calculation Sr = 0.049X + 0.162 mg CN- amenable to chlonnation/L where: = G - H Sr = overall precision and X CN conceniradion, mg/L. 'i 412 G. Cyanides Amenable to Chlorination without Distillation (Short-Cut Method) N 1. General Discussion ride (CNCl). This test requires neither lengthy distillation nor the chlorination of .5 This method covers the determination of one sample before distillation. The recov- 4- HCN and of CN complexes that are ame- ery of CN from metal cyanide complexes nable to chlorination and also thiocyanates will be comparable to that in Methods F (SCN~). The procedure does not measure and H. cyanates (CNO ) or iron cyanide com- The cyanides are converted to CNC by plexes, but does determine cyanogen chlo- chloramine-T after the sample has been Al- 15 APPENDIX 2 AIR & WATER DATA AIR AND WATER DATA BUILDING #47 AND #48 STORM DRAIN SEDIMENT REMOVAL The attached table and plan show the location of air and water screening/analysis taken during and associated with the sediment removal from the storm water drain under building #47 and #48 at the Dighton Industries site. The buildings were unoccupied during this removal (#47 because of a vacation scheduled between Christmas and New Year, and #48 due to its use as a long term storage area not usually manned). During both removal days (a third day was planned but not started- due to equipment failures) the level of Trichloroethylene (TCE) and other halocarbons remained below 30ppm the ceiling limit for exposure a short distance (5'-15') from the manhole being used. TCE levels inside the sewer were, at one point, as high as 200ppm; half-face respirators with organic vapor cartridges were used at all times inside and directly over the manhole. No explosimeter readings over 0 were ever detected. This instrument, an M.S.A explosiometer was calibrated before each use. Due to the large size, 48" x 48", and flow characteristics in the flume, a large volume of air moved through the storm drain during all the time work was carried out. Water flow during the procedure was diverted allowing no flow through the removal area. Drager Tube #CH30701 was used for this investigation. This tube detects 10-500ppm free halogens, hydrogen halides and other easily cleaved halogenated hydrocarbons. Standard Drager Pump #31 was operated three (3) strokes for each sample. The pump was tested for tightness before each sample by operation with a sealed tube. A2-1 DIGHTON INDUSTRIES PHASE II REPORT Table of Air and Storm Water Analysis Building #47 and #48 Storm Drain Sediment Removal Date Time Media Location Method Result 12/29/86 1130 Air Sewer Explosimeter No Reading 12/29/86 1145 Air Manhole Drager Tube 50ppm #CH 30701 12/29/86 1150 Air Manhole Drager Tube l5ppm +15' #CH 30701 12/29/86 1230 Air Sewer Drager Tube 25ppm #CH 30701 12/29/86 1235 Air Manhole Explosimeter No Reading 12/29/86 1400 Air Manhole Drager Tube l0ppm #CH 30701 12/29/86 1445 Air Manhole Drager Tube 200ppm (near) #CH 30701 12/29/86 1450 Air 15' + Drager Tube 5ppm Manhole #CH 30701 12/30/86 NA Sediment Sewer #47 8010 Flash See Analytical Pt. Eptoxicity Datum #3717 Date Time Media Location Method Result 2/12/87 1145 Air Sewer #48 Explosimeter *ND Build 2/12/87 1200 Air Sewer Drager Tube <10ppm #CH 30701 2/18/87 1030 Air Sewer Explosimeter *ND 2/18/87 1035 Air Sewer Drager Tube *ND #CH 30701 2/18/87 1330 Air Sewer Explosimeter *ND 2/18/87 1335 Air Sewer Drager Tube 100ppm #CH 30701 (over removal drum) 1/22/87 NA Water Outfall 601 3777-4 at end of sewer *ND = None Detected Refer to attached plan for locations. A2-2 DIAGRAM OF BUILDINGS #47 AND #48 Storm Drain Sediment Removal Area Yellow Area-Indicates Sediment Removal P Shows Primary Contamination I. - TITe Iov . Tor C%3 HH* * Noc.-a-- 48 I 4. No. 47 QIi~ K It ii Ii K ------~dt A2-3 / UMI U OF2 SOUD ANIJ HAZAHU TI / One Winter Street 3 ~ /Boston, Massachusetts 02108 Please print or type. {Form designed for use on elite 11 2-pitch) typewriter. UNIFORM -jj D U 1GensratorUSEPADNo Me I WASTE MAN T // | iot5 alrequi. O 3. Generatorz Narot. i.;. ' Mai gl4], 71>/0 "A5- es A C200262 0-58 .P ^15 C >1 1. Gore at. so.,L- 6/7 GZ7I57 u-or )9 W i 5. Transporte 1 Cmpn am 6. US t- A I Nurrac. C.St t Tranz. 1D I: api ' r-j N 1' 5 ~. l LC-017 2|^9 6 o 1-1iic-it'. 23r 7. Tranisporta.- 2 C r pe. NaI i'.. T on $ts T om. n S.Designte re iN . 10. i F- ,. T n s p F 1 GG I Es t .,"- 5 _ / ,: , I- j1 U3/_. L/3b - a oy 'LL N 1 4 7- C ZlXw i4 1 C$$ 7C jio6y z 71 C.F I I ___ d. J I r j. Additioad Deseriptions; for M . LU. fr is Lit; td Abrf, liu cpyic st hzr. d Co rW se. -C -1 E4i b. d. 15, Special Handlinghimrvc;n Lnd Additicaal Information 16. GENERATOR SII.; .. .. . -2w.c ' - poper slip - U accaldil"A L 3 ', , ment, OR, 1, -. an -.. 'I"'-- - MD-+ I cmrI af i ,d ?67 3LiU? 17 ;-, .:.U- e I' UK 7 70 / '644. ~Zif. COPY>3: GENERATOR-MAILED BY TSDF 04ca1 7rW fr f?-5 A2-4 APPENDIX 3 LABORATORY ANALYSES Certified Engineering & Testing Co. Inc. 25 Mautewson Drive, \M0LuIhI, NM1A 02 189)(61M)37-7887 LABORATORY ANALYSIS FOR DIGHTON INDUSTRIES Sampled: December 30, 1986 Matrix: Soil Location: Sluiceway Sediment Sample No.: ~3717 from below buildinq #47 Parameter & Units Result Date Analyzed Method Silver, mg/kg 1.5 1/14/87 303A Cadmium, mg/kg 3 1/22/87 303A -Chromium, mg/kg 95 1/21/87 303A -Lead, mg/kg 154 1/12/87 303A Barium, mg/kg 35 1/23/87 303C Arsenic, mg/kg 26 1/14/87 304 Selenium, mg/kg <25 2/03/87 304 Mercury, mg/kg 1.6 1/07/87 303F pH,SU 7.14 1/12/87 423 Flash Point, *C >70 1/29/87 1010 2 PCB, mg/kg 3 1/13/87 3 Metals extracted 1/6/87 according to Method 302F Metals reported on a dry (1030C) weight basis. 1 Method Reference: Standard Methods for the Examination of Water and Wastewater, 16th Edition, 1985. 2 Method Reference: SW 846, 2nd Edition, 1985 3 Method Reference: EPA 600/4-81-045 A3-1 CERTIFIED ENGINEERING & TESTING COMPANY, INC. LABORATORY ANALYSIS FOR DIGHTON INDUSTRIES Sampled: December 30, 1986 Sample No.: 3717 Matrix: Soil Date Analyzed: February 2, 1987 Storm Sewer Sediment from below building *47 Parameter Concentration Detection Limit ug/kg ~ug/kg Chloromethane ND 10,000 Bromomethane ND 10,000 Dichlorodifluoromethane ND 10,000 Vinyl Chloride ND 10,000 Chloroethane ND 10,000 lethylene chloride ND 10,000 Trichlorofluoromethane ND 10,000 1,1-Dichloroethene ND 10,000 1,1-Dichloroethane ND 10,000 trans-1,2-Dichloroethene ND 10,000 Chloroform ND 10,000 1,2-Dichloroethane ND 10,000 1,1,1-Trichloroethane ND 10,000 Carbon tetrachloride ND 10,000 Bromodichloromethane ND 10,000 1,2-Dichloropropane ND 10,000 trans-1,3-Dichloropropene ND 10,000 Trichloroethene 19,000 10,000 Dibromochloromethane ND 10,000 1, 1 , 2-Trich loroethane ND 10,000 cis-1,3-Dichloropropene ND 10,000 2-Chloroethylvinyl ether ND 10,000 Bromoform ND 10,000 1, 1 , 2 , 2-Tetrachloroethane ND 10,000 Tetrachloroethene. - 97,000 10,000 Chlorobenzene ND 10,000 1,3-Dichlorobenzene ND 10,000 1,2-Dichlorobenzene ND 10,000 1,4-Dichlorobenzene ND 10,000 METHOD REFERENCE: SW 846 Methods for Evaluating Solid Waste, Method 8010 ND = None Detected A3-2 CERTIFIED ENGINEERING & TESTING COMPANY, INC. Client: Dighton Industries Sample No.: 3636-4 Raytheon 6 Storm Sewer Line Samples Received: November 25, 1986 Date Analyzed: November 25, 1986 Parameter Concentration Detection Limit ug/1 ug/1 Chloromethane ND Bromomethane ND Dichlorodifluoromethane ND Vinyl Chloride ND Chloroethane ND Methylene chloride ND Trichlorofluoromethane ND 1,1-Dichloroethene ND 1,1-Dichloroethane ND trans-1,2-Dichloroethene ND Chloroform ND 1,2-Dichloroethane ND 1,1,1-Trichloroethaie ND Carbon tetrachloride ND Bromodichloromethane ND 1,2-Dichloropropane ND trans-1,3-Dichloropropene ND Trichloroethene ND Dibromochloromethane ND 1,1,2-Trichloroethane ND cis-1,3-Dichloropropene ND 2-Chloroethylvinyl ether ND Bromoform ND 1,1,2,2-Tetrachloroethane ND Tetrachloroethene 146 Chlorobenzene ND 1 , 3-Dichlorobenzene ND 1,2-Dichlorobenzene ND 1,4-Dichlorobenzene ND METHOD REFERENCE: EPA 600/4-82-057 Method 601 Purgeable Halocarbons ND = None Detected A3-3 APPENDIX 4 SAMPLE ANALYSES -C. ~- CERTIFIED ENGINEERING & TESTING COMPANY, INC. LABORATORY ANALYSIS FOR DIGHTON INDUSTRIES Sampled: January 26, 1987 Matrix: Sediment Location: N.E. bank of 3 Mile River Semple No.: 3781-1 at Joseph Warner Blvd. Parameter & Units Reslt Date Analyzed MethodI Total Cyanide, mg/kg 3,74 1/26/E7 412B,E Free Cyanide, mg/kg 0.08 1/26/ 7 412E Location: S.E. bank of 3 Mile River Sample No.: 3781-2 at Joseph Warner Blvd. Parameter & Units Result Date Analyzed Method1 Total Cyanide, mg/kg 0.98 1/26/87 412B,E Free Cyanide, mg/kg 0.68 1/26/87 412E Locat-ion: N. central bank by BIW Sample No.: 3781-3 Parameter & Units Result Date Analyzed Method' Total Cyanide, mg/kg 1.52 1/26/017 412B,E Free Cyanide, mg/kg 0.92 1/26/87 412E Location: -S~. central bank by DI Sample No.: 3781-4 Parameter & Units Result Date Analyzed Method 1 Total Cyanide, mg/kg 250 1/26/87 412B,E Free Cyanide, mg/kg 30.9 1/26/87 4 1 2E Location: Stream bed N. of BIW Sample No.: 3781-5 across street from SWANK Parameter & Units Re!s u 1 t Date Analyzed Method 1 Total Cyanide, mg/kg 13.5 1/26/87 412B,E Free Cyanide, mg/kg 4.65 1/26/E7 412E 1 Method Reference: Standard Methods for the Examination of Water and Wastewater, 16th Edition, 1985. Samples 3781-1 through 5 were sampled in glass pint containers. A4-1 CERTIFIED ENGINEERING & TESTING COMPANY, INC. LABORATORY ANALYSIS FOR DIGHTON INDUSTRIES Sampled: January 28, 1987 Location: Joseph Warner Blvd. Bridge Sample No.: 3789-2 Matrix: Liquid Parameter & Units Result Date Analyzed Method1 Total Cyanide, mg/l <0.005 1/28/b7 412B,E Location: River outfall nearest pump house Sample No.: 3789-3 Matrix: Liquid Parameter & Units Result Date Analyzed Method1 Total Cyanide, mg/l' <0.005 1/28/87 412B,E Location: Mars parking area sewer outfall Sample No.:' 3789-4 Matrix: Liquid Parameter & Units Result Date Analyzed Method 1 Total Cyanide, mg/i <0.005 1/28/P7 412B,E Location: Mars parking area sewer bank Sample No.: 3789-5 Matrix: Soil Parameter & Units Result Date An&lyzed Method' Total Cyanide, mg/kg 5.93 1/28/87 412B,E- Location: Mars parking arsa sewer bottom Sample No.: 3789-6 Matrix: Soil Parameter & Units Result Date Analyzed Method1 Total Cyanide, mg/kg 6.40 1/28/87 412B,E Method Reference: Standard Methods for thc. Examination of Water and Wastewater, 16th Edition, 1985. Samples 3789-2,3, and 4 were obtained in glass quart containers preserved with NaOH; Samples 3789-5,6 were obtained in glass pint containers. A4-2 CERTIFIED ENGINEERING & TESTING COMPANY, INC. LABORATORY ANALYSIS FOR DIGHTON INDUSTRIES Location: Rosemar Silver - Well Samples Sample No. Date Sampled Description 3732-1 01/06/87 1 glass quart bottle of groundwater preserved with NaOH from MW-19. (Formerly MWR.) 01/06/87 125 ml plastic bottle of groundwater preserved with HNO 3 from MW-19. (Formerly MWR.) 3732-5 01/06/87 125 ml plastic bottle of groundwater preserved with HNO 3 from MW-18. (Formerly MW-7.) 3746 01/12/87 2 40mL teflon/silicon septa vials of groundwater from MW-19. (Formerly MWR.) 3777-3 01/22/87 1 40mL teflon/silicon septa vial of groundwater from MW-19. (Formerly MWR.) SEE ATTACHED TABLES A4-3 CERTIFIED ENGINEERING & TESTING COMPANY, INC. LABORATOPY ANALYSIS FOR DIGHTON INDUSTRIES Sampled: January 6, 1987, Matrix: Liquid Location: Well at Rosemar Sump Sample No.: 3732-1 Parameter & Units Result Date Analyzed Method1 Total Cyanide, mg/l 1.33 1/13/87 412B,E Free Cyanide, mg/i 0.19 1/13/87 412E Amenable Cyanide, mg/l 0.35 1/13/87 412B,E,F Location: Well at Rosemar Sump Sample No.: 3732-4 Parameter & Units Result Date Analyzed Method Silver, mg/l <0.0004 1/13/87 304 Cadmium, mg/1 <0.005 1/22/87 303A Chromium, mg/1 <0.02 1/05/87 303A Lead, mg/I 0.0015 1/13/87 304 Copper, mg/l 0.02 1/21/87 303A Nickel, mg/i <0.05 1/21/87 303A Location: Well at Rosemar Tank Sample No.: 3732-5 Parameter & Units Result Date Analyzed Method Silver, mg/i <0.0004 1/13/87 304 Cadmium, mg/i 0.01 1/22/87 303A Chromium, mg/l <0.02 1/05/87 303A Lead, mg/l <0.001 1/13/87 304 Copper, mg/l <0.02 1/21/87 303A Nickel, mg/l <0.05 1/21/87 303A 1 Method Reference: Standard Methods for the Examination of Water and Wastewater, 16th Edition, 1985. A4-4 CERTIFIED ENGINEERING & TESTING COMPANY, INC. LABORATORY ANALYSIS FOR DIGHTON INDUSTRIES Sampled: January 12, 1987 Sample No.: 3746 Matrix: Groundwater from Sump Well Date Analyzed: January 26, 1987 Parameter Concentration Detection Limit ug/l ug/l Chloromethane ND 10 Bromomethane ND 10 Dichlorodifluoromethane ND 10 Vinyl Chloride ND 10 Chloroethane ND 10 Methylene chloride ND 10 Trichlorofluoromethane ND 10 1,1-Dichloroethene ND 10 1,1-Dichloroethane 37 10 trans-1,2-Dichloroethene ND 10 Chloroform ND 10 1,2-Dichloroethane ND 10 1,1,1-Trichloroethane 470 10 Carbon tetrachloride ND 10 Bromodichloromethane ND 10 1, 2-Dichloropropane ND 10 trans-1,3-Dichloropropene ND 10 Trichloroethene 5890 10 Dibromochloromethane ND 10 1,1,2-Trichloroethane ND 10 cis-1,3-Dichloropropene ND 10 2-Chloroethylvinyl ether ND 10 Bromoform ND 10 1,1,2,2-Tetrachloroethane ND 10 Tetrachloroethene ND 10 Chlorobenzene ND 10 1,3-Dichlorobenzene ND 10 1,2-Dichlorobenzene ND 10 1,4-Dichlorobenzene ND 10 METHOD REFERENCE: EPA 600/4-82-057 method 601 Purgeable Halocarbons ND = None Detected A4-5 CERTIFIED ENGINEERING & TESTING COMPANY, INC. LABORATORY ANALYSIS FOR DIGHTON INDUSTRIES, INC. Samples Received: January 22, 1987 Sample No.: 3777-3 MWR Date Analyzed: January 27, 1987 Matrix: Water Parameter Concentration Detection Limit ug/l ug/1 Chloromethane ND 10 Bromomethane ND 10 Dichlorodifluoromethane ND 10 Vinyl Chloride ND 10 Chloroethane ND 10 Methylene chloride ND 10 Trichlorofluoromethane ND 10 1,1-Dichloroethene ND 10 1,1-Dichloroethane- 40 10 tans-l,2-Dichloroethene ND 10 Chloroform ND 10 1,2-Dichloroethane ND 10 1, 1, 1-Trichloroethane 470 10 Carbon tetrachloride ND 10 Bromodichloromethane ND 10 1,2-Dichloropropane ND 10 trans-1, 3-Dichloropropene ND 10 Trichloroethene 5100 10 Dibromochloromethane ND 10 1, 1,2-Trichloroethane ND 10 cis-1,3-Dichloropropene ND 10 2-Chloroethylvinyl ether ND 10 Bromoform ND 10 1,1,2,2-Tetrachloroethane ND 10 Tetrachloroethene ND 10 Chlorobenzene ND 10 1, 3-Dichlorobenzene ND 10 1,2-Dichlorobenzene ND 10 1,4-Dichlorobenzene ND 10 METHOD REFERENCE: EPA 600/4-82-057 Method 601 Purgeable Halocarbons ND = None Detected A4-6 CERTIFIED ENGINEERING & TESTING COMPANY, INC. LABORATORY ANALYSIS FOR DIGHTON INDUSTRIES MISCELLANEOUS ANALYTICAL RESULTS Sample No. Date Sampled Description Location 3357-1 8/15/86 1 glass quart of water MW-16 (Formerly MW-5) 3357-6 8/15/86 1 glass quart of water MW-13 (Formerly MW-1) 1 PETROLEUM HYDROCARBON ANALYSIS I - Sample No. Date Extracted Date Analyzed Concentration 3357-1 8/20/86 8/20/86 <1 mg/L 3357-6 8/21/86 8/21/86 <1 mg/L 1 Method Reference: Snowden & Peake, "Gas Chromatography of High Molecular Weight Hydrocarbons with an Inorganic Salt Eutectic Column", Analytical Chemistry, Vol. 50, pp. 379-381. Sample No. Date Sampled Description Location 3357-7 8/15/86 2 40mL teflon/silicon MW-15 septa vials of water (Formerly MW-4, destroyed) 3629 11/24/86 2 40mL teflon/silicon Composite of septa vials of water 55 gallon drums of rainwater U 3672 12/05/86 1 40mL teflon/silicon Below 100 gal. septa vial of soil tank 3777-2 1/22/87 1 8oz. glass jar of Near transformer soil cage I SEE ATTACHED TABLES A4-7 CERTIFIED ENGINEERING & TESTING COMPANY, INC. LABORATORY ANALYSIS DIGHTON INDUSTRIES Purgeable Aromatic Analysis Parameter & Units 3357-7 Benzene, mg/L <1.0 Chlorobenzene, mg/L <1.0 1,3-Dichlorobenzene, mg/L <1.0 1,2-Dichlorobenzene, mg/L <1.0 1,4-Dichlorobenzene, mg/L <1.0 Ethylbenzene, mg/L <1.0 Toluene, mg/L <1.0 Total Xylenes, mg/L <1.0 Sampled was analyzed August 19, 1986 according to EPA 600/4-82-057, - Method 602 A4-8 CERTIFIED ENGINEERING & TESTING COMPANY, INC. Client: Dighton Industries Sample No.: 3629 Sanbples Received: November 24, 1986 Date Analyzed: December 6, 1986 Coimposite, contents of 55 gallon drums of rainwater Parameter Concentration Detection Limit ug/l ug/l Chlorometharne ND Bromomethane ND Dichlorodifluoromethane ND 1 Vinyl Chloride ND 1 Chlotoethan ND I Methylene chloride ND 1 Trichlorofluoromethane ND 1 1,1-Dichloroethene ND 1 1,1-Dichloroethane ND trans-1,2-Dichloroethene ND Chloroform ND 1,2-Dichloroethane ND 1,1,1-Trichloroethane ND Carbon tetrachloride ND Bromodichloromethane ND 1 1,2-Dichloropropane ND trans-1,3-Dichloropropene ND Trichloroethene ND Dibromochloromethane ND I,1,2-Trichloroethane ND cis-1,3-Dichloropropene ND 1 2-Chloroethylvinyl ether ND 1 Bromoform ND 1 1,1,2,2-Tetrachloroethane ND 1 Tetrachloroethene ND Chlorobenzene Trace 1,3-Dichlorobenzene 6 1 1,2-Dichlorobenzene 21 1 1,4-Dichlorobenzene 30 1 METHOD REFERENCE: EPA 600/4-82-057 Method 601 Purgeable Halocarbons ND = None Detected "Trace" indicates the probable presence below listed detection limit. A4-9 CERTIFIED ENGINEERING & TESTING COMPANY, INC. PURGEABLE AROMATICS ANALYSIS DIGHTON INDUSTRIES Sampled: December 5, 1986 Matrix: Soil Description: Soil from under 100 gallon gas tank Sample No.: 3672 Parameter Result Benzene, ug/kg 20 Chlorobenzene, ug/kg ND 1,3-Dichlorobenzene, ug/kg ND 1,2-Dichlorobenzene, ug/kg ND 1,4-Dichlorobenzene, ug/kg ND Ethylbenzene, ug/kg 30 Toluene, ug/kg 60 Total Xylenes, ug/kg 100 Sample was analyzed December 15, 1986 according to SW 846, 2nd Edition, Method 8020. ND = None Detected; Detection limit = 10 ug/kg A4-10 Lab Number: 8821-1 Sample Designation: 3777-2 Date Analyzed: 2/11/87 Matrix: Solid PESTICIDES/PCB'S CONCENTRATION DETECTION LIMIT (ug/g) (ug/g) ALDRIN BDL .03 ALP1HA-BHI BDL .03 BETA-BlC BDL .03 GAMMA-BHC BDL .03 DELTA-BHC BDL .03 CHLORDANE BDL .3 4,4'-DDT .73 .06 4 4'-DDg .14 .06 4,4'-DDD BDL .06 DIELDRIN BDL .06 ENDOSULFAN I BDL .03 ENDOSULFAN II BDL .06 ENDOSULFAN SULFATE BDL .06 ENDRIN BDL .06 ENDRIN ALDEHYDE BDL .06 HEPTACHLOR BDL .06 HEPTACHLOR EPOXIDE BDL .03 PCB-1242 BDL .3 PCB-1254 BDL .6 PCB-1221 BDL .3 PCB-1232 BDL .3 PCB-1248 BDL .3 PCB-1260 BDL .6 PCB-1016 BDL .3 TOXAPHENE BDL .6 ENDRIN EETONE BDL .6 METHOXYCHLOR BDL .3 BDL = BELOW DETECTION LIMIT METHOD REFERENCE: EPA SW 846, 2ND EDITION METHODS FOR EVALUATING SOLID WASTE METHODS 3540 AND 8080 -~~~~~ 4 it~r*J Resource Analysts, Incorporated A4-11 CERTIFIED ENGINEERING & TESTING COMPANY, INC. LABORATORY ANALYSIS FOR DIGHTON INDUSTRIES I Location: Rosemar Silver - Sump Samples U Sample No. Date Sampled Description 3357-2 8/15/86 1 glass pint jar of sediment I 3357-3 8/15/86 1 glass Soz. amber jar of sediment 3357-4 8/15/86 125 mL HDPE bottle of water I preserved with HNO 3 3400-2 8/25/86 1 glass quart jar of water I preserved with NaOH 3654-2 12/03/86 1 glass 8oz. amber jar of I sediment I SEE ATTACHED TABLES I I U I I U I I A4-12 CERTIFIED ENGINEERING & TESTING COMPANY, INC. LABORATORY ANALYSIS FOR DIGHTON INDUSTRIES Location: Rosemar Sump-Sediment Sample No.: 3357-2 1 Parameter & Units Results Date Analyzed Method Silver, mg/L <0.022 08/26/86 303A Arsenic, mg/L <0.0127 08/26/86 304 Barium, mg/L <0. 16 09/02/86 303C Cadmium, mg/L <0.011 08/26/86 303A Chromium, mg/L <0.057 09/02/86 303A Mercury, mg/L <0.020 09/05/86 303F Lead, mg/L 5.7 08/25/86 303A Selenium, mg/L <0.003 09/03/86 304 Cyanide, mg/kg 23.1 08/22/86 412B,E (Wet weight) 1 Method Reference: Standard Methods for the Examination of Water and Wastewater, 16th Edition, 1985. A4-13 EPA 601 FURGEAELE HALOCARBONS SAMPLE ID: NEC #60iIS CERTIFIED #333T-:soIL :AMPLE CLIENT: CERTIFIED ENGINEERING SAMPLE RECEIVED: 08/21/96 SAMPLE ANALYZED: 02/21/ 6 TARAMETER RESULT *UG/KG WET WT. BROMODICHLOROMETHANE ND BROMOFORM ND BROMOMETHANE ND CARBON TETRACHLORIDE ND CHLORDSENZENE ND CHL.OROETHANE ND 2-CHLORDETHYLYINYL ETHER ND CHLOROFORM ND CHLOROMETHANE ND DIBROMOCHLOROMETHANE ND 1.2-DICHLOROBENZENE ND 1.J-DICHLOROBENZENE ND 1.4-DICHLOROBENZENE ND DICHLORODIFLUOROMETHANE ND 1.1-DICHLORDETHANE ND 1.2-DICHLOROETHANE ND 1.1-DICHLOROETHENE NB TRANS-1.2-DICHLOROETHENE ND 1.2-DICHLOROPROPANE ND CIS-1.3-DICHLOROPROPENE ND TRANS-1.3-DICHLOROPROPENE ND METHYLENE CHLORIDE ND 1.1.2.2-TETRACHLOROETHANE NE TETRACHLOROETHENE ND 1.1.1-TRICHLOROETHANE 63 1.1.2-TRICHLOROETHANE ND TRICHLOROETHENE NDB TRICHLOROFLUOROMETHANE ND VINYL CHLORIDE ND RECOVERIES OF INTERNAL STANDARDS BROMOCHLOROMETHANE 100 2-BROMO-1-CHLOROPROPANE ?T 1.4-DICHLORDBUTANE 9 METHOD DETECTION LIMIT = 50 UG/KG WET WT. 02/22/%6 A4-14 DATE LABORATORY DIRECTOR CERTIFIED ENGINEERING & TESTING COMPANY, INC. METALS ANALYSIS DIGHTON INDUSTRIES Effluent taken from Rosemar Sump Parameter 3357-4 Date Analyzed Method' Total Silver, mg/l 0.26 08/20/86 303A Total Chromium, mg/i <0.062 08/20/86 303A Total Cadmium, mg/i <0.010 08/20/86 303A Total Nickel, mg/i 0.63 08/20/86 303A Total Lead, mg/i 0.59 08/19/86 303A Parameter & Units 3400-2 Date Analyzed Method1 Total Cyanide, mg/l 1.68 09/02/86 412B,E 1 Method Reference: .Standard Methods for the Examination of Water and Wastewater, 16th Edition, 1985. A4-15 CERTIFIED ENGINEERING & TESTING COMPANY, INC. DIGHTON INDUSTRIES Sampled: December 3, 1986 Date Analyzed: December 6, 1986 Location: Rosemar Sump Matrix: Sediment Sample No.: 3654-2 Parameter Concentration Detection Limit ug/kg ug/kg Chloromethane ND 5 Bromomethane ND 5 Dichlorodifluoromethane ND 5 Vinyl Chloride ND 5 Chloroethane ND 5 Methylene chloride Trace 5 Trichlorofluoromethane ND 5 1,1-Dichloroethene ND 5 1,1-Dichloroethane Trace 5 trans-1,2-Dichloroethene Trace 5 Chloroform Trace 5 1,2-Dichloroethane ND 5 1,1,1-Trichloroethane Trace 5 Carbon tetrachloride ND 5 Bromodichloromethane ND 5 1,2-Dichloropropane ND 5 trans-1,3-Dichloropropene ND 5 Trichloroethene 110 5 Dibromochloromethane ND 5 1,1,2-Trichloroethane ND 5 cis-1,3-Dichloropropene ND 5 2-Chloroethylvinyl ether ND 5 Bromoform ND 5 1,1,2,2-Tetrachloroethane Trace 5 Tetrachloroethene 80 5 Chlorobenzene ND 5 1,3-Dichlorobenzene ND 5 1,2-Dichlorobenzene Trace 5 1,4-Dichlorobenzene ND 5 "Trace" indicates probable presence below listed detection limit. METHOD REFERENCE: SW846, 2nd Edition Method 8010 Purgeable Halocarbons ND = None Detected A4-16 CERTIFIED ENGINEERING & TESTING COMPANY, INC. LABORATORY ANALYSIS FOR DIGHTON INDUSTRIES Sampled: December 3, 1986 Matrix: Sediment Location: Rosemar Sump Sample No.: 3654-2 Parameter & Units Result Date Analyzed Method1 Total Cyanide, mg/kg 60.2 12/05/86 412B,E Free Cyanide, mg/kg 28 12/05/86 412E 1 Method Reference: Standard Methods for the Examination of Water and Wastewater, 16th Edition, 1985. A4-17 CERTIFIED ENGINEERING & TESTING COMPANY, INC. LABORATORY ANALYSIS FOR DIGHTON INDUSTRIES SLUICEWAY SAMPLING LOCATION D Location: River Discharge - Raytheon Sample No. Date Sampled Description 3357-8 8/15/86 1 glass pint jar of sediment EP TOXICITY ANALYSIS Parameter & Units Concentration Date Analyzed Methodl Silver, mg/L <0.022 8/26/86 303A Arsenic, mg/L <0.0019 8/26/86 304 Barium, mg/L <0.16 9/02/86 303C Cadmium, mg/L <0.011 8/26/86 303A Chromium, mg/L <0.057 9/02/86 303A Mercury, mg/L <0.020 9/05/86 303F Lead, mg/L <0.091 8/25/86 303A Selenium, mg/L <0.003 9/03/86 304 Sample was extracted on August 21, 1986 according to the Federal Register, Vol. 45, No. 98, Part 261-Identification and Listing of Hazardous Waste. CYANIDE ANALYSIS Parameter & Units Concentration Date Analyzed Method1 Total Cyanide, mg/kg 53.1 (wet weight) 8/22/86 412B,E PURGEABLE HALOCARBON ANALYSIS Sample No. Date Sampled Description 3357-9 8/15/87 1 Soz. glass jar of sediment SEE ATTACHED TABLE 1 Method Reference: Standard Methods for the Examination of Water and Wastewater, 16th Edition, 1985. A4-18 HEW ENGLAHD CHRDMAGHE'' &AL , '. MA 0: i "o EPA 00l PURGEABLE HALOCARBON5 SAMPLE ID: NEC #608084 CERTIFIED ".35 - ,SAMPJ CLIENT: CERTIFIED ENGINEERING L SAMPLE RECEIVED: 08/21/6 SAMPLE ANALYZED: d8/1. PARAMETER RESULT (UG/KG WET WT.) BROMODICHLOROMETHANE ND BROHOFORM ND BROMOMETHANE ND CARBON TETRACHLORIDE ND CHLOROBENZENE ND CHLOROETHANE ND 2-CHLOROETHYLVINYL ETHER ND CHLOROFORM ND CHLOROMETHANE ND DIBROMOCHLOROMETHANE ND 1.2-DICHLOROBENZENE ND 1. 3-DICHLOROBENZENE ND 1. 4-DICHLOROBENZENE ND DICHLORODIFLUOROMETHANE ND 1. 1-DICHLOROETHANE ND 1 2-DICHLOROETHANE ND 1. 1-D ICHLOFOETHENE ND TRANS-1. 2-DICHLOROETHENE ND 1. 2-DICHLOROPROPANE ND C IS-1. 3-DICHLOROPROPENE ND TRANS-1. 3-DICHLOROPROPENE ND METHYLENE CHLORIDE ND C-' 1. 1.2.2-TETRACHLOROETHANE ND TE TRA CHLOROE THENE 1.1. 1-TRICHLOROETHANE 1.1. 2-TRICHLOROETHANE ND TRICHLOROETHENE ND TRICHLOROFLUOROMETHANE N D VINYL CHLOR IDE ND RECOVERIES OF INTERNAL STANDARDS BROMOCHLOROMETHANE 13 2-BROMO-1-CHLOROFROPANE ?T 1. 4-DICHLOROBUT ANE METHOD DETECTION LIMIT = 50 UG/KG WET WT. L- 08/22/D A4-19 DArTE LABORATORY DIRECTOR CERTIFIED ENGINEERING & TESTING COMPANY, INC. LABORATORY ANALYSIS FOR DIGHTON INDUSTRIES Location: Three Mile River Sampling to determine extent of chlorinated halocarbon contamination. Sample Series Date Sampled Description 3516-1 through 8 10/06/86 Sediment samples tightly packed in 8oz. amber glass jars. (See map for locations.) SEE ATTACHED TABLES Sample Series Date Sampled Description 3606-1, -8R, -8L 11/13/86 Two each 40mL teflon/silicon septa vials of water. SEE ATTACHED TABLES Sample Series Date Sampled Description 3606-2 through 8 11/13/86 Sediment samples tightly packed in 8oz. amber glass jars. (See map for locations.) SEE ATTACHED TABLES A4-20 CERTIFIED ENGINEERING & TESTING COMPANY, INC. Client: Dighton Industries, Inc. Sample No.: 3516-1 Location: Three Mile River Samples Received: October 6, 1986 Date Analyzed: October 14, 1986 Parameter Result ug/kg Bromodichloromethane ND Bromoform ND Bromomethane ND Carbon Tetrachloride ND Chlorobenzene ND Chlorodibromomethane ND Chloroethane ND 2-Chloroethylvinyl ether ND Chloroform ND Chloromethane ND Dibromochloromethane ND 1,2-Dichlorobenzene. ND 1,3-Dichlorobenzene ND 1,4-Dichlorobenzene ND Dichlorodifluoromethane ND 1,1-Dichloroethane ND 1,2-Dichloroethane ND 1,1-Dichloroethene ND trans-1,2-Dichloroethene ND 1,2-Dichloropropane ND cis-1,3-Dichloropropene ND trans-1,3-Dichloropropene ND Methylene chloride ND 1,1,2,2-Tetrachloroethane ND 1,1,2,2-Tetrachloroethylene ND 1,1,1-Trichloroethane ND 1,1,2-Trichloroethane ND Trichloroethene ND Trichlorofluoromethane ND Vinyl chloride ND METHOD DETECTION LIMIT = 1.0 ug/kg METHOD REFERENCE: SW 846, 2nd Edition, Method 8010 ND = None Detected A4-21 CERTIFIED ENGINEERING & TESTING COMPANY, INC. Client: Dighton Industries, Inc. Sample No.: 3516-2 Location: Three Mile River Samples Received: October 6, 1986 Date Analyzed: October 14, 1986 Parameter Result ug/kg Bromodichloromethane ND Bromoform ND Bromomethane ND Carbon Tetrachloride ND Chlorobenzene ND Chlorodibromomethane ND Chloroethane ND 2-Chloroethylvinyl ether ND Chloroform ND Chloromethane ND Dibromochloromethane ND 1,2-Dichlorobenzene.. ND 1,3-Dichlorobenzene ND 1,4-Dichlorobenzene ND Dichlorodifluoromethane ND 1,1-Dichloroethane ND 1,2-Dichloroethane ND 1,1-Dichloroethene ND trans-1,2-Dichloroethene ND 1,2-Dichloropropane ND cis-1,3-Dichloropropene ND trans-1,3-Dichloropropene ND Methylene chloride ND 1,1,2,2-Tetrachloroethane ND 1,1,2,2-Tetrachloroethylene ND 1,1,1-Trichloroethane ND 1,1,2-Trichloroethane ND Trichloroethene ND Trichlorofluoromethane ND Vinyl chloride ND METHOD DETECTION LIMIT = 1.0 ug/kg METHOD REFERENCE: SW846 2nd Edition Method 8010 ND = None Detected A4-22 CERTIFIED ENGINEERING & TESTING COMPANY, INC. Client: Dighton Industries, Inc. Sample No.: 3516-3 Location: Three Mile River Samples Received: October 6, 1986 Date Analyzed: October 14, 1986 Parameter Result ug/kg Bromodichloromethane ND Bromoform ND Bromomethane ND Carbon Tetrachloride ND Chlorobenzene ND Chlorodibromomethane ND Chloroethane ND 2-Chloroethylvinyl ether ND Chloroform ND Chloromethane ND Dibromochloromethane ND 1,2-Dichlorobenzene.. ND 1,3-Dichlorobenzene ND 1,4-Dichlorobenzene ND Dichlorodifluoromethane ND 1,1-Dichloroethane ND 1,2-Dichloroethane ND 1,1-Dichloroethene ND trans-1,2-Dichloroethene ND 1,2-Dichloropropane ND cis-1,3-Dichloropropene ND trans-1,3-Dichloropropene ND Methylene chloride ND 1,1,2,2-Tetrachloroethane ND 1,1,2,2-Tetrachloroethylene ND 1,1,1-Trichloroethane ND 1,1,2-Trichloroethane ND Trichloroethene ND Trichlorofluoromethane ND Vinyl chloride ND METHOD DETECTION LIMIT = 1.0 ug/kg METHOD REFERENCE: SW846 2nd Edition Method 8010 ND = None Detected A4-23 CERTIFIED ENGINEERING & TESTING COMPANY, INC. Client: Dighton Industries, Inc. Sample No.: 3516-4 Location: Three Mile River Samples Received: October 6, 1986 Date Analyzed: October 14, 1986 Parameter Result ug~/kg Bromodichloromethane ND Bromoform ND Bromomethane ND Carbon Tetrachloride ND Chlorobenzene ND Chlorodibromomethane ND Chloroethane ND 2-Chloroethylvinyl ether ND Chloroform ND Chloromethane ND Dibromochloromethane ND 1,2-Dichlorobenzene.. ND 1,3-Dichlorobenzene ND 1,4-Dichlorobenzene ND Dichlorodifluoromethane ND 1,1-Dichloroethane ND 1,2-Dichloroethane ND 1,1-Dichloroethene ND trans-1,2-Dichloroethene ND 1,2-Dichloropropane ND cis-1,3-Dichloropropene ND trans-1,3-Dichloropropene ND Methylene chloride ND 1,1,2,2-Tetrachloroethane ND 1,1,2,2-Tetrachloroethylene ND 1,1,1-Trichloroethane ND 1,1,2-Trichloroethane ND Trichloroethene ND Trichlorofluoromethane ND Vinyl chloride ND METHOD DETECTION LIMIT = 1.0 ug/kg METHOD REFERENCE: SW846 2nd Edition Method 8010 ND = None Detected A4-24 CERTIFIED ENGINEERING & TESTING COMPANY, INC. Client: Dighton Industries, Inc. Sample No.: 3516-5 Location: Three Mile River Samples Received: October 6, 1986 Date Analyzed: October 14, 1986 Parameter Result ug/kg Bromodichloromethane ND Bromoform ND Bromomethane ND Carbon Tetrachloride ND Chlorobenzene ND Chlorodibromomethane ND Chloroethane ND 2-Chloroethylvinyl ether ND Chloroform ND Chloromethane ND Dibromochloromethane ND 1, 2-Dichlorobenzene.. ND 1,3-Dichlorobenzene ND 1,4-Dichlorobenzene ND Dichlorodifluoromethane ND 1,1-Dichloroethane ND 1,2-Dichloroethane ND 1,1-Dichloroethene ND trans-1,2-Dichloroethene ND 1,2-Dichloropropane ND cis-1,3-Dichloropropene ND trans-1,3-Dichloropropene ND Methylene chloride ND 1,1,2,2-Tetrachloroethane ND 1,1,2,2-Tetrachloroethylene ND 1,1,1-Trichloroethane ND 1,1,2-Trichloroethane ND Trichloroethene ND Trichlorofluoromethane ND Vinyl chloride ND METHOD DETECTION LIMIT = 1.0 ug/kg METHOD REFERENCE: SW846 2nd Edition Method 8010 ND = None Detected A4-25 CERTIFIED ENGINEERING & TESTING COMPANY, INC. Client: Dighton Industries, Inc. Sample No.: 3516-6 Location: Three Mile River Samples Received: October 6, 1986 Date Analyzed: October 14, 1986 Parameter Result ug/kg Bromodichloromethane ND Bromoform ND Bromomethane ND Carbon Tetrachloride ND Chlorobenzene ND Chlorodibromomethane ND Chloroethane ND 2-Chloroethylvinyl ether ND Chloroform ND Chloromethane ND Dibromochloromethane ND 1,2-Dichlorobenzene.. ND 1,3-Dichlorobenzene ND 1,4-Dichlorobenzene ND Dichlorodifluoromethane ND 1,1-Dichloroethane ND 1,2-Dichloroethane ND 1,1-Dichloroethene ND trans-1,2-Dichloroethene ND 1,2-Dichloropropane ND cis-1,3-Dichloropropene ND trans-1,3-Dichloropropene ND Methylene chloride ND 1,1,2,2-Tetrachloroethane ND 1,1,2,2-Tetrachloroethylene ND 1,1,1-Trichloroethane ND 1,1,2-Trichloroethane ND Trichloroethene ND Trichlorofluoromethane ND Vinyl chloride ND METHOD DETECTION LIMIT = 1.0 ug/kg METHOD REFERENCE: SW 846, 2nd Edition Method 8010 ND = None Detected A4-26 CERTIFIED ENGINEERING & TESTING COMPANY, INC. Client: Dighton Industries, Inc. Sample No.: 3516-7 Location: Three Mile River Samples Received: October 6, 1986 Date Analyzed: October 15, 1986 Parameter Result ug/kg Bromodichloromethane ND Bromoform ND Bromomethane ND Carbon Tetrachloride ND Chlorobenzene ND Chlorodibromomethane ND Chloroethane ND 2-Chloroethylvinyl ether ND Chloroform ND Chloromethane ND Dibromochloromethane ND 1,2-Dichlorobenzene.. ND 1,3-Dichlorobenzene ND 1,4-Dichlorobenzene ND Dichlorodifluoromethane ND 1,1-Dichloroethane ND 1,2-Dichloroethane ND 1,1-Dichloroethene ND trans-1,2-Dichloroethene ND 1,2-Dichloropropane ND cis-1,3-Dichloropropene ND trans-1,3-Dichloropropene ND Methylene chloride ND 1,1,2,2-Tetrachloroethane ND 1,1,2,2-Tetrachloroethylene ND 1,1,1-Trichloroethane ND 1,1,2-Trichloroethane ND Trichloroethene ND Trichlorofluoromethane ND Vinyl chloride ND METHOD DETECTION LIMIT = 1.0 ug/kg METHOD REFERENCE: .SW846 2nd Edition Method 8010 ND = None Detected A4-27 CERTIFIED ENGINEERING & TESTING COMPANY, INC. Client: Dighton Industries, Inc. Sample No.: 3516-8 Location: Three Mile River Samples Received: October 6, 1986 Date Analyzed: October 15, 1986 Parameter Result ug/kg Bromodichloromethane ND Bromoform ND Bromomethane ND Carbon Tetrachloride ND Chlorobenzene ND Chlorodibromomethane ND Chloroethane ND 2-Chloroethylvinyl ether ND Chloroform ND Chloromethane ND Dibromochloromethane ND 1,2-Dichlorobenzene.. ND 1,3-Dichlorobenzene ND 1,4-Dichlorobenzene ND Dichlorodifluoromethane ND 1,1-Dichloroethane ND 1,2-Dichloroethane ND 1,1-Dichloroethene ND trans-1,2-Dichloroethene ND 1,2-Dichloropropane ND cis-1,3-Dichloropropene ND trans-1,3-Dichloropropene ND Methylene chloride ND 1,1,2,2-Tetrachloroethane ND 1,1,2,2-Tetrachloroethylene ND 1,1,1-Trichloroethane ND 1,1,2-Trichloroethane ND Trichloroethene ND Trichlorofluoromethane ND Vinyl chloride ND METHOD DETECTION LIMIT = 1.0 ug/kg METHOD REFERENCE: SW846 2nd Edition Method 8010 ND = None Detected A4-28 CERTIFIED ENGINEERING & TESTING COMPANY, INC. Client: Dighton Industries Sample No.: 3606-1 Water Samples Received: November 13, 1986 Date Analyzed: November 24, 1986 Parameter Concentration Detection Limit ug/1 ug/1 Chloromethane ND Bromomethane ND Dichlorodifluoromethane ND 1 Vinyl Chloride ND 1 Chloroethane ND 1 Methylene chloride ND 1 Trichlorofluoromethane ND 1 1,1-Dichlornethene ND 1 1,1-Dichloroethane ND 1 trans-1, 2-Dichloroethene ND 1 Chloroform ND 1 1, 2-DPchloroethane ND 1 1,1,1-Trichloroethane ND 1 Carbon tetrachloride ND 1 Bromodichloromethane ND 1 1,2-Dichloropropane ND 1 trans-1,3-Dichloropropene ND 1 Trichloroethene - ND 1 Dibromochloromethane ND 1 1,1,2-Trichloroethane ND 1 cis-1,3-Dichloropropene ND 1 2-Chloroethylvinyl ether ND 1 Bromoform ND 1 1,1,2,2-Tetrachloroethane ND 1 Tetrachloroethene ND Chlorobenzene ND 1,3-Dichlorobenzene ND 1,2-Dichlorobenzene ND 1,4-Dichlorobenzene ND 1 METHOD DETECTION LIMIT = 1.0 ug/1 METHOD REFERENCE: EPA 600/4-82-057 Method 601 Purgeable Halocarbons ND = None Detected A4-29 CERTIFIED ENGINEERING & TESTING COMPANY, INC. Client: Dighton Industries Sample No.: 3606-2 Sediment Samples Received: November 13, 1986 Date Analyzed: November 23, 1986 Parameter Concentration Detection Limit ug/kg ug/kg Chloromethane ND 50 Bromomethane ND 50 Dichlorodifluoromethane ND 50 Vinyl Chloride ND 50 Chloroethane ND 50 Methylene chloride ND 50 Trichlorofluoromethane ND 50 1,1-Dichloroethene ND 50 1,1-Dichloroethane ND 50 trans-1,2-Dichloroethene ND 50 Chloroform ND 100 1,2-Dichloroethane ND 50 1,1,1-Trichloroethane ND 50 Carbon tetrachloride ND 50 Bromodichloromethane ND 50 1,2-Dichloropropane ND 50 trans-1,3-Dichloropropene ND 50 Trichloroethene - ND 50 Dibromochloromethane ND 50 1,1,2-Trichloroethane ND 50 cis-1,3-Dichloropropene ND 50 2-Chloroethylvinyl ether ND 50 Bromoform ND 50 1,1,2,2-Tetrachloroethane ND 50 Tetrachloroethene ND 50 Chlorobenzene ND 50 1,3-Dichlorobenzene ND 50 1,2-Dichlorobenzene ND 50 1,4-Dichlorobenzene ND 50 METHOD REFERENCE: SW846, 2nd Edition, Method 5030/8010 ND = None Detected Based upon wet (as received) weight A4-30 CERTIFIED ENGINEERING & TESTING COMPANY, INC. Client: Dighton Industries Sample No.: 3606-3 Sediment Samples Received: November 13, 1986 Date Analyzed: November 23, 1986 Parameter Concentration Detection Limit ug/kg ug/kg Chloromethane ND 50 Bromomethane ND 50 Dichlorodifluoromethane ND 50 Vinyl Chloride ND 50 Chloroethane ND 50 Methylene chloride ND 50 Trichlorofluoromethane ND 50 1,1-Dichloroethene ND 50 1,1-Dichloroethane ND 50 trans-1,2-Dichloroethene ND 50 Chloroform ND 100 1,2-Dichloroethane ND 50 1,1,1-Trichloroethane ND 50 Carbon tetrachloride ND 50 Bromodichloromethane ND 50 1,2-Dichloropropane ND 50 trans-1,3-Dichloropropene ND 50 Trichloroethene - ND 50 Dibromochloromethane ND 50 1,1,2-Trichloroethane ND 50 cis-1,3-Dichloropropene ND 50 2-Chloroethylvinyl ether ND 50 Bromoform ND 50 1,1,2,2-Tetrachloroethane ND 50 Tetrachloroethene ND 50 Chlorobenzene ND 50 1,3-Dichlorobenzene ND 50 1,2-Dichlorobenzene ND 50 1,4-Dichlorobenzene ND 50 METHOD REFERENCE: SW846, 2nd Edition, Method 5030/8010 ND = None Detected Based upon wet (as received) weight A4-31 CERTIFIED ENGINEERING & TESTING COMPANY, INC. Client: Dighton Industries Sample No.: 3606-4 Sediment Samples Received: November 13, 1986 Date Analyzed: November 23, 1986 Parameter Concentration Detection Limit ug/kg ug/kg Chloromethane ND 50 Bromomethane ND 50 Dichlorodifluoromethane ND 50 Vinyl Chloride ND 50 Chloroethane ND 50 Methylene chloride ND 50 Trichlorofluoromethane ND 50 1,1-Dichloroethene ND 50 1,1-Dichloroethane ND 50 trans-1,2-Dichloroethene ND 50 Chloroform ND 100 1,2-Dichloroethane ND 50 1,1,1-Trichloroethane ND 50 Carbon tetrachloride ND 50 Bromodichloromethane ND 50 1,2-Dichloropropane ND 50 trans-1,3-Dichloropropene ND 50 Trichloroethene ND 50 Dibromochloromethane ND 50 1,1,2-Trichloroethane ND 50 cis-1,3-Dichloropropene ND 50 2-Chloroethylvinyl ether ND 50 Bromoform ND 50 1,1,2,2-Tetrachloroethane ND 50 Tetrachloroethene ND 50 Chlorobenzene ND 50 1,3-Dichlorobenzene ND 50 1,2-Dichlorobenzene ND 50 1,4-Dichlorobenzene ND 50 METHOD REFERENCE: SW846, 2nd Edition, Method 5030/8010 ND = None Detected Based upon wet (as received) weight A4-32 CERTIFIED ENGINEERING & TESTING COMPANY, INC. Client: Dighton Industries Sample No.: 3606-5 Sediment Samples Received: November 13, 1986 Date Analyzed: November 24, 1986 Parameter Concentration Detection Limit ug/kg ug/kg Chloromethane ND 50 Bromomethane ND 50 Dichlorodifluoromethane ND 50 Vinyl Chloride ND 50 Chloroethane ND 50 Methylene chloride ND 50 Trichlorofluoromethane ND 50 1,1-Dichloroethene ND 50 1,1-Dichloroethane ND 50 trans-1,2-Dichloroethene ND 50 Chloroform ND 100 1,2-Dichloroethane ND 50 1,1,1-Trichloroethane ND 50 Carbon tetrachloride ND 50 Bromodichloromethane ND 50 1,2-Dichloropropane ND 50 trans-1,3-Dichloropropene ND 50 Trichloroethene ND 50 Dibromochloromethane ND 50 1,1,2-Trichloroethane ND 50 cis-1,3-Dichloropropene ND 50 2-Chloroethylvinyl ether ND 50 Bromoform ND 50 1,1,2,2-Tetrachloroethane ND 50 Tetrachloroethene ND 50 Chlorobenzene ND 50 1,3-Dichlorobenzene ND 50 1,2-Dichlorobenzene ND 50 1,4-Dichlorobenzene ND 50 METHOD REFERENCE: SW846, 2nd Edition, Method 5030/8010 ND = None Detected Based upon wet (as received) weight A4-33 1~ CERTIFIED ENGINEERING & TESTING COMPANY, INC. o} i te - Client: Dighton Industries Sample No.: 3606-6 Ssdiment Samples Received: November 13, 1986 Date Analyzed: November 24, 1986 Parameter Concentration Detection Limit ug/kg ug/kg Chloromethane ND 50 Bromomethane ND 50 Dichlorodifluoromethane ND 50 Vinyl Chloride ND 50 Chloroethane ND 50 Methylene chloride ND 50 Trichlorofluoromethane ND 50 1,1-Dichloroethene ND 50 1,1-Dichloroethane ND 50 trans-1,2-Dichloroethene ND 50 Chloroform ND 100 1,2-Dichloroethane ND 50 1,1,1-Trichloroethane ND 50 Carbon tetrachloride ND 50 Bromodichloromethane ND 50 1,2-Dichloropropane ND 50 trans-1,3-Dichloropropene ND 50 Trichloroethene " ND 50 Dibromochloromethane ND 50 1,1,2-Trichloroethane ND 50 cis-1,3-Dichloropropene ND 50 2-Chloroethylvinyl ether ND 50 Bromoform ND 50 1,1,2,2-Tetrachloroethane ND 50 Tetrachloroethene ND 50 Chlorobenzene ND 50 1,3-Dichlorobenzene ND 50 1,2-Dichlorobenzene ND 50 1,4-Dichlorobenzene ND 50 METHOD REFERENCE: SW846, 2nd Edition, Method 5030/8010 ND = None Detected Based upon wet (as received) weight A4-34 CERTIFIED ENGINEERING & TESTING COMPANY, INC. Client: Dighton Industries Sample No.: 3606-7 Sediment Samples Received: November 13, 1986 Date Analyzed: November 24, 1986 Parameter Concentration Detection Limit ug/kg ug/kg Chloromethane ND 50 / Bromomethane ND 50 Dichlorodifluoromethane ND 50 Vinyl Chloride ND 50 Chloroethane ND 50 Methylene chloride ND 50 Trichlorofluoromethane ND 50 1,1-Dichloroethene ND 50 1,1-Dichloroethane ND 50 trans-1,2-Dichloroethene ND 50 Chloroform ND 100 1,2-Dichloroethane ND 50 1,1,1-Trichloroethane ND 50 Carbon tetrachloride ND 50 Bromodichloromethane ND 50 1,2-Dichloropropane ND 50 trans-1,3-Dichloropropene ND 50 Trichloroethene " ND 50 Dibromochloromethane ND 50 1,1,2-Trichloroethane ND 50 cis-1,3-Dichloropropene ND 50 2-Chloroethylvinyl ether ND 50 Bromoform ND 50 1,1,2,2-Tetrachloroethane ND 50 Tetrachloroethene ND 50 Chlorobenzene ND 50 1,3-Dichlorobenzene ND 50 1,2-Dichlorobenzene ND 50 1,4-Dichlorobenzene ND 50 METHOD REFERENCE: SW846, 2nd Edition, Method 5030/8010 ND = None Detected Based upon wet (as received) weight A4-35 CERTIFIED ENGINEERING & TESTING COMPANY, INC. Client: Dighton Industries Sample No.: 3606-8 Sediment Samples Received: November 13, 1986 Date Analyzed: November 23, 1986 Parameter Concentration Detection Limit ug/kg ug/kg Chloromethane ND 50 Bromomethane ND 50 Dichlorodifluoromethane ND 50 Vinyl Chloride ND 50 Chloroethane ND 50 Methylene chloride ND 50 Trichlorofluoromethane ND 50 1,1-Dichloroethene ND 50 1,1-Dichloroethane ND 50 trans-1,2-Dichioroethene 91 50 Chloroform ND 100 1,2-Dichloroethane ND 50 1,1,1-Trichloroethane ND 50 Carbon tetrachloride ND 50 Bromodichloromethane ND 50 1,2-Dichloropropane ND 50 trans-1,3-Dichloropropene ND 50 Trichloroethene - ND 50 Dibromochloromethane ND 50 1,1,2-Trichloroethane ND 50 cis-1,3-Dichloropropene ND 50 2-Chloroethylvinyl ether ND 50 Bromoform ND 50 1,1,2,2-Tetrachloroethane ND 50 Tetrachloroethene 530 50 Chlorobenzene ND 50 1,3-Dichlorobenzene ND 50 1,2-Dichlorobenzene ND 50 1,4-Dichlorobenzene ND 50 METHOD REFERENCE: SW846, 2nd Edition, Method 5030/8010 ND = None Detected Based upon wet (as received) weight A4-36 CERTIFIED ENGINEERING & TESTING COMPANY, INC. Client: Dighton Industries Sample No.: 3606-SL Water Samples Received: November 13, 1986 Date Analyzed: November 24, 1986 Parameter Concentration Detection Limit ug/1 ug/l Chloromethane ND 1 Bromomethane ND I Dichlorodifluoromethane ND 1 Vinyl Chloride ND 1 Chloroethane ND 1 Methylene chloride ND 1 Trichlorofluoromethane ND 1,1-Dichloroethene ND 1,1-Dichloroethane ND 1 trans-1, 2-Dichloroethene 2.6 1 Chloroform ND 1 1,2-Dichloroethane ND 1 1,1,1-Trichloroethane ND 1 Carbon tetrachloride ND 1 Bromodichloromethane ND 1,2-Dichloropropane ND trans-1,3-Dichloropropene ND 1 Trichloroethene ND 1 Dibromochloromethane ND 1 1,1,2-Trichloroethane ND 1 cis-1,3-Dichloropropene ND 1 2-Chloroethylvinyl ether ND 1 Bromoform ND 1 1,1,2, 2-Tetrachloroethane ND Tetrachloroethene 56 Chlorobenzene ND 1 1,3-Dichlorobenzene ND 1 1,2-Dichlorobenzene ND 1 1,4-Dichlorobenzene ND METHOD DETECTION LIMIT = 1.0 ug/1 METHOD REFERENCE: EPA 600/4-82-057 Method 601 Purgeable Halocarbons ND = None Detected A4-37 CERTIFIED ENGINEERING & TESTING COMPANY, INC. Client: Dighton Industries Sample No.: 3606-8R Water Samples Received: November 13, 1986 Date Analyzed: November 21, 1986 Parameter Concentration Detection Limit ug/1 ug/1 Chloromethane ND Bromomethane ND Dichlorodifluoromethane ND Vinyl Chloride ND Chloroethane ND Methylene chloride ND Trichlorofluoromethane ND 1 1,1-Dichloroethene ND 1 1,1-Dichloroethane ND 1 trans-1,2-Dichloroethene ND 1 Chloroform ND 1 1,2-Dichloroethane ND 1 1,1,1-Trichloroethane ND 1 Carbon tetrachloride ND 1 Bromodichloromethane ND 1 1,2-Dichloropropane ND 1 trans-1,3-Dichloropropene ND 1 Trichloroethene " ND 1 Dibromochloromethane ND 1 1,1,2-Trichloroethane ND 1 cis-1,3-Dichloropropene ND 1 2-Chloroethylvinyl ether ND 1 Bromoform ND 1 1,1,2,2-Tetrachloroethane ND 1 Tetrachloroethene ND 1 Chlorobenzene ND 1 1,3-Dichlorobenzene ND 1 1,2-Dichlorobenzene ND 1 1,4-Dichlorobenzene ND METHOD DETECTION LIMIT = 1.0 ug/1 METHOD REFERENCE: EPA 600/4-82-057 Method 601 Purgeable Halocarbons ND = None Detected A4-38 CERTIFIED ENGINEERING & TESTING COMPANY, INC. LABORATORY ANALYSIS FOR I DIGHTON INDUSTRIES Sample No. Date Sampled Description Location 3357-10 8/15/86 1 Boz. amber jar of End of Sluiceway sediment I3357-11 8/15/86 1 pint glass jar of Start of sediment Sluiceway 3400-1 8/15/86 1 pint glass jar of End of Sluiceway U sediment 3654-1 12/03/86 1 glass quart of water at BIW U preserved with NaOH 3630 11/24/86 1 pint glass jar of End of Sluiceway I sediment USEE ATTACHED TABLES I I U I I U I I A4-39 NEW ENGLAND CHI-RMACHEM '-D-'aZB DIiHUE ;IiTREET (-a7LE. 1I4 01 7' -4c- a. EPA 601 PURGEABLE HALOCARBONS SAMPLE ID: NEC #608065 CERTIFIED #3357-10 O5IL SAMPLE CLIENT: CERTIFIED ENGINEERING kp--A &u SAMPLE RECEIVED: 08/21/q6 SAMPLE ANALYZED: 08/21/86 PARAMETER RESULT (UG/KG WET WT.) BROMOD I CHLOROME THANE ND BROMOFORM ND BROMOMETHANE ND CARBON TETRACHLORIDE ND CHLOROBENZENE NE CHLOROETHANE ND 2-CHLOROETHYLVINYL ETHER ND CHLOROFORM ND CHLOROMETHANE ND DIBROMOCHLOROMETHANE ND 1.2-DICHLOROBENZENE ND 1,3-DICHLOROBENZENE ND 1.4-DICHLOROBENZENE ND DICHLORODIFLUOROMETHANE ND 1. 1-DICHLROETHANE ND 1,2-DICHLOROETHANE ND 1. 1-DICHLOROETHENE ND TRANS-1.2-DICHLOROETHENE ND 1.2-DICHLOROPROPANE ND CI S-1. 3-D I CHLOROPROPENE ND TRANS-1. 3-DICHLOROPROPENE ND METHYLENE CHLORIDE ND 1. 1.2. 2-TETRACHLOROETHANE ND TETRACHLOROETHENE ND 1.1.1-TRICHLOROETHANE ND 1, 1. 2-TRICHLOROETHANE ND TRICHLOROETHENE ND TRICHLOROFLUDROMETHANE ND VINYL CHLORIDE ND RECOVERIES OF INTERNAL STANDARDS BROMOCHLOROMETHANE 2-BROMO-1-CHLOROPROPANE 95 1. 4-DICHLOROBUTANE METHOD DETECTION LIMIT 50 UG/KG WET WT. 08/22/B6 A4-40 DATE LABORATORY DIRECTOR CERTIFIED ENGINEERING & TESTING COMPANY, INC. LABORATORY ANALYSIS FOR DIGHTON INDUSTRIES Sampled: August 15, 1986 Matrix: Sediment Location: Start of Sluiceway Sample No.: 3357-11 Parameter & Units Result Date Analyzed Method1 Total Cyanide, mg/kg 9.45 9/02/86 412B,E Cyanide expressed as wet weight EP TOXICITY ANALYSIS Parameter & Units Result Date Analyzed Method1 Silver, mg/L <0.022 8/26/86 303A Arsenic, mg/L <0.0019 8/26/86 304 Barium, mg/L <0.16 9/02/86 303C Cadmium, mg/L <0.011 8/26/86 303A Chromium, mg/L <0.057 9/02/86 303A Mercury, mg/L <0.02 9/05/86 303F Lead, mg/L <0.091 8/25/86 303A Selenium, mg/L <0.003 9/03/86 304 Sample was extracted August 21, 1986 according to the Federal Register, Vol. 45, No. 98, Part 261-Identification and Listing of Hazardous Waste. 1 Method Reference: Standard Methods for the Examination of Water and Wastewater, 16th Edition, 1985. A4-41 CERTIFIED ENGINEERING & TESTING COMPANY, INC. LABORATORY ANALYSIS FOR DIGHTON INDUSTRIES Sampled: August 15, 1986 Matrix: Sediment Location: End of Rosemar/DI Sluiceway Sample No.: 3400-1 Parameter & Units Result Date Analyzed Method1 Total Cyanide, mg/kg 450 1/26/87 412B,E Free Cyanide, mg/kg 18.2 1/26/87 412E Cyanide expressed as wet weight EP TOXICITY ANALYSIS Parameter & Units Result Date Analyzed Methodl Silver, mg/L <0.025 9/02/86 303A Arsenic, mg/L <0.005 9/03/86 304 Barium, mg/L <0.16 9/02/86 303C Cadmium, mg/L 0.030 9/02/86 303A Chromium, mg/L <0.057 9/02/86 303A Mercury, mg/L <0.02 9/05/86 303F Lead, mg/L 0.71 9/02/86 303A Selenium, mg/L <0.003 9/03/86 304 Sample was extracted August 29, 1986 according to the Federal Register, Vol. 45, No. 98, Part 261-Identification and Listing of Hazardous Waste. 1 Method Reference: Standard Methods for the Examination of Water and Wastewater, 16th Edition, 1985. A4-42 CERTIFIED ENGINEERING & TESTING COMPANY, INC. LABORATORY ANALYSIS FOR DIGHTON INDUSTRIES Sampled: August 15, 1986 Matrix: Liquid Description: Sluiceway Water Sample No.: 3654-1 Parameter & Units Result Date Analyzed Method1 Total Cyanide, mg/L <0.005 12/04/86 412B,E Sampled: November 24, 1986 Matrix: Sediment Location: End of Sluiceway Sample No.: 3630 Parameter & Units Result Date Analyzed Methodl Total Cyanide, mg/kg 68.5 12/02/86 412B,E (Expressed as wet weight) 1 Method Reference: Standard Methods for the Examination of Water and Wastewater, 16th Edition, 1985. A4-4 3 CERTIFIED ENGINEERING & TESTING COMPANY, INC. LABORATORY ANALYSIS FOR DIGHTON INDUSTRIES Location: Rosemar Silver - Well Sample Sample No.- Date Sampled Description 3357-5 8/15/86 1 quart glass jar of groundwater Compo!sitof.- /MW=18 (Formerly MW-6 and MW-7.) Date Extracted Date Analyzed Petroleum Hydrocarbons 8/21/86 8/21/86 1.0 mg/L Method Reference: Snowden & Peake, "Gas Chromatography of High Molecular Weight Hydrocarbons with an Inorganic Salt Eutectic Column", Analytical Chemistry, Vol. 50, pp. 379-381. A4-44 CERTIFIED ENGINEERING & TESTING COMPANY, INC. LABORATORY ANALYSIS FOR DIGHTON INDUSTRIES Location: Rosemar Silver - Well Samples Sample No. Date Sampled Description 3542 10/10/86 2 each 4OmL teflon/s ilicon septa vials of water from MW-17 and MW-18; lab composited. (Formerly MW-6 and MW-7.) 3727 12/31/86 1 quart glass jar of groundwater preserved with NaOH from MW-17 and MW-18. (Formerly MW-6 and MW-7.) SEE ATTACHED TABLES A4-45 CERTIFIED ENGINEERING & TESTING COMPANY, INC. Purgeable Aromatics Sample No.: 3542 Date Sampled: October 16, 1986 Matrix: Water Location: Composite of MW-6 and MW-7 Parameter Result Benzene, ug/1 4.1 Chlorobenzene, ug/1 ND 1,3-Dichlorobenzene, ug/1 ND 1,2-Dichlorobenzene, ug/ ND 1,4-Dichlorobenzene, ug/ ND Ethylbenzene, ug/l 9.7 Toluene, ug/l 2.1 Total Xylenes, ug/1 ND Sample was analyzed October 23, 1986 according to EPA 600/4-82-057 Method 602. ND = None Detected Detection limit = 1 ug/1 A4-46 CERTIFIED ENGINEERING & TESTING COMPANY, INC. LABORATORY ANALYSIS FOR DIGHTON INDUSTRIES Sampled: December 31, 1986 Matrix: Liquid Description: gomposite of groundwater Sample No.: 3727 froim wells at Rosemar Tank Parameter & Units Result Date Analyzed Method' Total Cyanide, mg/i 0.571 1/13/87 412B,E 1 Method Reference: Standard Methods for the Examination of Water and Wastewater, 16th Edition, 1985. A4-47 CERTIFIED ENGINEERING & TESTING COMPANY, INC. LABORATORY ANALYSIS FOR DIGHTON INDUSTRIES Sample No. Date Sampled Description Location 3512-1 10/03/86 1 glass quart jar of soil Boiler Room Area I 3512-2 10 / 03/86 1 glass quart jar of soil Boiler Room Area SEE ATTACHED TABLES A4-48 CERTIFIED ENGINEERING & TESTING COMPANY,. INC. LABORATORY ANALYSIS Dighton Industries Location: "Clean".,'upper 5-6' of large Sampled: 10/03/86 tank (Excava.tion Soils) Matrix: So ii Sample No.: 3512-1 Parameter & Units Result Date Analyzed MethodI Silver, mg/i <0.023 10/10/86 303A Arsenic, mg/l 0.0034 10/08/86 304 Barium, mg/i <0.17 10/10/86 303C Cadmium, mg/1 0.00108 10/10/86 304 Chromium, mg/i (0.0002 10/08/86 304 Mercury, mg/i <0.00043 10/06/86 303F Lead, mg/l 0.0186 10/07/86 304 Selenium, mg/i <0.0021 10/08/86 304 Samples for EP Toxicity analysis were extracted October 5, 1986 according to the Federal Register, Vol. 45, No. 98, Part 261-Identification and Listing of Hazardous Waste. Flash Point Date Analyzed Reference >70 0 C 10/14/86 2 Petroleum Hydrocarbons Date Analyzed Date Extracted Reference 95 mg/kg 10/06/86 10/0§/86 3 PCB's Date Analyzed Reference (2 mg/kg 10/07/86 4 1 Method Reference: Standard Methods for the Examination of Water and Wastewater, 16th Edition, 1985. Method 2 Reference: SW 846, 2nd Edition, Method 1010 3 Method Reference: Snowden & Peake, "Gas Chromatography of High Molecular Weight Hydrocarbons with an Inorganic Salt Eutectic Column", Analytical Chemistry, Vol. 50, pp. 379-381. Method Reference: EPA 600/4-81-045 A4-49 CERTIFIED ENGINEERING & TESTING COMPANY, INC. LABORATORY ANALYSIS Dighton Industries Location: "Dirty" , soils lower than Sampled: 1 0/03/86 5-6' at large tank excavation area Matrix: Soil Sample No.: 3512-2 1 Parameter & Units Result Date Analyzed Method Silver, mg/1l <0.023 10/10/86 303A Arsenic, mg/i <0.0016 10/08/86 304 Barium, mg/i <0.17 10/10/86 303C Cadmium, mg/l <0. 00239 10/08/86 304 Chromium, mg/1 0.00365 10/08/86 304 Mercury, mg/i <0.00043 10/06/86 303F Lead, mg/i 0.0137 10/07/86 304 Selenium, mg/l <0.0021 10/08/86 304 Samples for EP Toxicity analysis were extracted October 5, 1986 according to the Federal Register, Vol. 45, No. 98, Part 261-Identification and Listing of Hazardous Waste. Flash Point Date Analyzed Reference >70 0 C 10/14/86 2 Petroleum Hydrocarbons Date Analyzed Date Extracted Reference 19 % 10/06/86 10/05/86 3 PCB's Date Analyzed Reference <2 mg/kg 10/07/86 4 1 Method Reference: Standard Methods for the Examination of Water and Wastewater, 16th Edition, 1985. 2 Method Reference: SW 846, 2nd Edition, Method 1010 3 Method Reference: Snowden & Peake, "Gas Chromatography of High Molecular Weight Hydrocarbons with an Inorganic Salt Eutectic Column", Analytical Chemistry, Vol. 50, pp. 379-381. Method Reference: EPA 600/4-81-045 A4-50 CERTIFIED ENGINEERING & TESTING COMPANY, INC. LABORATORY ANALYSIS FOR DIGHTON INDUSTRIES Location: Boiler Room Area Analysis of soils removed from Boiler Room area. Sample No. Date Sampled Description 3602 11/13/87 1 glass quart jar of soil SEE ATTACHED TABLES A4-51 CERTIFIED ENGINEERING & TESTING COMPANY, INC. LABORATORY ANALYSIS DIGHTON INDUSTRIES Sampled: November 13, 1986 Matrix: Soil Sample No.: 3602 EP TOXICITY ANALYSIS Soils from 11,000 gallon gasoline tank removal area. Parameter & Units Result Date Analyzed Method Silver, mg/l <0.02 11/14/86 304 Arsenic, mg/i 0.009 11/26/86 304 Barium, mg/l <0.5 11/25/86 303C Cadmium, mg/i <0.009 11/14/86 303A Chromium, mg/i <0.089 11/19/86 303A Mercury, mg/l <0.002 11/17/86 303F Lead, mg/1 <0.15 11/20/86 303A Selenium, mg/l <0.001 11/26/86 304 Samples extracted November 14, 1986 according to the Federal Register, Vol. 45, No. 98, Part 261-Identification and Listing of Hazardous Waste. FLASH POINT ANALYSIS Sample No. Date Analyzed Flash Point Ref 3602 12/01/86 1240F 2 PCB ANALYSIS Sample No. Date Analyzed PCB's Ref 3602 11/19/86 <2mg/kg 3 PETROLEUM HYDROCARBON ANALYSIS Sample No. Date Extracted Date Analyzed Concentration Ref 3602 11/18/86 11/19/86 170 mg/kg 4 Method Reference: Standard Methods for the Examination of Water and Wastewater, 16th Edition, 1985. 2 Method Reference: SW 846, 2nd Edition, Method 1010 Method Reference: EPA 600/4-81-045 4 Method Reference: Snowden & Peake, "Gas Chromatography of High Molecular Weight Hydrocarbons with an Inorganic Salt Eutectic Column", Analytical Chemistry, Vol. 50, pp. 379-381. A4-52 CERTIFIED ENGINEERING & TESTING COMPANY, INC. LABORATORY ANALYSIS FOR DIGHTON INDUSTRIES Location: Boiler Room Area PETROLEUM HYDROCARBON ANALYSIS 1 Date Date Date Sample No./Location Sampled Extracted Analyzed Concentration 3694-7/MW-1 12/17/86 12/30/86 12/31/86 Trace 3694-6/MW-2 12/17/86 12/30/86 12/31/86 Trace 3694-5/MW-3 12/17/86 12/30/86 12/31/86 ND 3694-4/MW-4 12/17/86 12/30/86 12/31/86 ND 3694-3/MW-5 12/17/86 12/29/86 12/29/86 ND 3694-11/MW-5 (DUP) 12/17/86 01/02/87 01/02/87 ND 3694-10/MW-6 12/17/86 01/02/87 01/02/87 Trace 3694-9/MW-7 12/17/86 01/02/87 01/02/87 ND 3694-1/MW-8 12/17/86 12/29/86 12/29/86 ND 3732-2/MW-9 01/06/87 01/27/87 01/27/87 ND 3694-8/MW-10 12/17/86 12/30/86 12/31/86 ND 3694-9/MW-11 12/17/86 12/29/86 12/29/86 6.7 mg/L 3732-3/MW-12 01/06/87 01/27/87 01/27/87 Trace Trace indicates the probable presence below detection limit of 1 mg/L. I Method Reference: Snowden & Peake, "Gas Chromatography of High U Molecular Weight Hydrocarbons with an Inorganic Salt Eutectic Column", Analytical Chemistry, Vol. 50, pp. 379-381. A4-53 CERTIFIED ENGINEERING & TESTING COMPANY, INC. LABORATORY ANALYSIS FOR DIGHTON INDUSTRIES Sample No. Date Sampled Description Location 3777-1 1/22/87 1 8oz. amber jar of Outfall grate sediment (pumphouse) 3777-4 1/22/87 2 40mL teflon/silicon River Q septa vials of water SEE ATTACHED TABLES A4-54 CERTIFIED ENGINEERING & TESTING COMPANY, INC. LABORATORY ANALYSIS FOR DIGHTON INDUSTRIES, INC. Sampled: January 22, 1987 Sample No.: 3777-1 Date Analyzed: February 6, 1987 Matrix: Solid Parameter Concentration Detection Limit ug/kg ug/kg Chloromethane ND 2.5 Bromomethane ND 2.5 Dichlorodifluoromethane ND 2.5 Vinyl Chloride ND 2.5 Chloroethane ND 2.5 Methylene chloride ND 2.5 /3 Trichlorofluoromethane ND 2.5 J/C -t 1,1-Dichloroethene ND 2.5 1,1-Dichloroethane 340 2.5 trans-1, 2-Dichoroethene ND 2.5 Chloroform ND 2.5 1,2-Dichloroethane ND 2.5 1,1,1-Trichloroethane ND 2.5 Carbon tetrachloride ND 2.5 Bromodichloromethane ND 2.5 1,2-Dichloropropane ND 2.5 trans-1,3-Dichloropropene ND 2.5 Trichloroethene 270 2.5 2.5 1,1,2-Trichloroethane ND 2.5 cis-1,3-Dichloropropene ND 2.5 2-Chloroethylvinyl ether ND 2.5 Bromoform ND 2.5 1,1,2,2-Tetrachloroethane ND 2.5 Tetrachloroethene 210 2.5 Chlorobenzene ND 2.5 1,3-Dichlorobenzene ND 2.5 1,2-Dichlorobenzene ND 2.5 1,4-Dichlorobenzene ND 2.5 METHOD REFERENCE: SW 846 Methods for Evaluating Solid Waste, Method 8010 ND = None Detected A4-55 CERTIFIED ENGINEERING & TESTING COMPANY, INC. LABORATORY ANALYSIS FOR DIGHTON INDUSTRIES Sampled: January 22, 1987 Matrix: Solid Description: Outfall Grate Sample No.: 3777-1 Parameter & Units Result Date Analyzed Method' Total Cyanide, mg/kg 2.85-' 1/27/87 412B,E Free Cyanide, mg/ 2.32 1/27/87 412E 1 Method Reference: Standard Methods for the Examination of Water and Wastewater, 16th Edition, 1985. A4-56 CERTIFIED ENGINEERING & TESTING COMPANY, INC. LABORATORY ANALYSIS FOR DIGHTON INDUSTRIES, INC. Samples Received: January 22, 1987 Sample No.: 3777-4 Outfall Date Analyzed: January 27, 1987 Matrix: Water Parameter Concentration Detection Limit ug/l ug/l Chloromethane ND 1 Bromomethane ND 1 Dichlorodifluoromethane ND 1 Vinyl Chloride ND Chloroethane ND Methylene chloride ND Trichlorofluoromethane ND 1,1-Dichloroethene ND 1,1-Dichloroethane ND trans-1, 2-Dichloroethene ND 1 Chloroform ND 1 1,2-Dichloroethane ND 1 1,1,1-Trichloroethane ND 1 Carbon tetrachloride ND 1 Bromodichloromethane ND 1 ,2-Dichloropropane ND trans-1,3-Dichloropropene ND 1 Trichloroethene 2 1 Dibromochloromethane ND 1 1,1,2-Trichloroethane ND 1 cis-1,3-Dichloropropene ND 1 2-Chloroethylvinyl ether ND Bromoform ND 1,1,2,2-Tetrachloroethane ND 1 Tetrachloroethene 8 1 Chlorobenzene ND 1 1,3-Dichlorobenzene ND 1 1,2-Dichlorobenzene ND 1 1,4-Dichlorobenzene ND 1 METHOD REFERENCE: EPA 600/4-82-057 Method 601 Purgeable Halocarbons ND = None Detected A4-57 CERTIFIED ENGINEERING & TESTING COMPANY, INC. LABORATORY ANALYSIS FOR DIGHTON INDUSTRIES Location: Below building #47 Sample No. Date Sampled Description 3717 12/30/86 Sediment sample tigfly packed in 8oz glass jar. SEE ATTACHED TABLES A4-58 Certified Engineering & Testing Co. Inc. 25 Mathewson Drive, \Vcymouth, MA 02189 (617)337-788- * .LABORATORY ANALYSIS FOR DIGHTON INDUSTRIES Sampled: December 30, 1986 Matrix: Soil Location: Sluiceway Sediment Sample No.: ~3717 from below buildinq #47 Parameter & Units Result Date Analyzed Method Silver, mg/kg 1.5 1/14/87 303A Cadmium, mg/kg 3 1/22/87 303A Chromium, mg/kg 95 1/21/87 303A Lead, mg/kg 154 1/12/87 303A Barium, mg/kg 35 1/23/87 303C Arsenic, mg/kg 26 1/14/87 304 Selenium, mg/kg <25 2/03/87 304 Mercury, mg/kg 1.6 1/07/87 303F pH,SU 7.14 1/12/87 423 Flash Point, OC >70 1/29/87 1010 2 PCB, mg/kg 3 1/13/87 3 Metals extracted 1/6/87 according to Method 302F1 Metals reported on a dry (103 0C) weight basis. 1 Method Reference: Standard Methods for the Examination of Water and Wastewater, 16th Edition, 1985. 2 Method Reference: SW 846, 2nd Edition, 1985 3 Method Reference: EPA 600/4-81-045 A4-59 CERTIFIED ENGINEERING & TESTING COMPANY, INC. LABORATORY ANALYSIS FOR DIGHTON INDUSTRIES Sampled: December 30, 1986 Sample No.: 3717 Matrix: Soil Date Analyzed: February 2, 1987 Storm Sewer Sediment from below building #47 > Parameter Concentration Detection Limit ug/kg ug/kg Chloromethane ND 10,000 Bromomethane ND 10,000 Dichlorodifluoromethane ND 10,000 Vinyl Chloride ND 10,000 Chloroethane ND 10,000 lethylene chloride ND 10,000 Trichlorofluoromethane ND 10,000 1,1-Dichloroethene ND 10,000 1,1-Dichloroethane ND 10,000 trans-1,2-Dichloroethene ND 10,000 Chloroform ND 10,000 1,2-Dichloroethane ND 10,000 1,1,1-Trichloroethane ND 10,000 Carbon tetrachloride ND 10,000 Bromodichloromethane ND 10,000 1,2-Dichloropropane ND 10,000 trans-1,3-Dichloropropene ND 10,000 Trichloroethene 19,000 10,000 Dibromochloromethane ND 10,000 1,1,2-Trichloroethane ND 10,000 cis-1,3-Dichloropropene ND 10,000 2-Chloroethylvinyl ether ND 10,000 Bromoform ND 10,000 1,1,2,2-Tetrachloroethane ND 10,000 Tetrachloroethene. - 97,000 10,000 Chlorobenzene 'ND 10,000 1,3-Dichlorobenzene ND 10,000 1,2-Dichlorobenzene ND 10,000 1,4-Dichlorobenzene ND 10,000 METHOD REFERENCE: SW 846 Methods for Evaluating Solid Waste, Method 8010 ND = None Detected A4-60 CERTIFIED ENGINEERING & TESTING COMPANY, INC. LABORATORY ANALYSIS FOR DIGHTON INDUSTRIES Sampling of suspected sources to find source of volatile halocarbon source. Sample No. Date Sampled Description Location 3636-1 11/25/86 2 40mL teflon/silicon River Q septa vials of water 3636-2 11/25/86 2 40mL teflon/silicon Boiler Room septa vials of water Catch Basin 3636-3 11/25/86 2 40mL teflon/silicon Summer Street septa vials of water 3636-4 11/25/86 2 40mL teflon/silicon Raytheon septa vials of water 3643-1 11/28/86 1 40mL teflon/silicon Step peak septa vials of water roof runoff 3643-2 11/28/86 1 40mL teflon/silicon Roof runoff septa vial of water with piece of rubber roof- ing in vial 3643-3 11/28/86 1 40mL teflon/silicon Roof runoff septa vial of water with piece of roofing glue in vial 3643-4 11/28/86 1 40mL teflon/silicon Loading roof septa vial of water runoff 3654-3 12/03/86 1 40mL teflon/silicon Floor drain - septa vial of sediment print shop 3654-4 12/03/86 1 40mL teflon/silicon Sink trap - septa vial of water print shop 3654-5 12/03/86 2 40mL teflon/silicon Catch basin septa vials of water before Raytheon 3654-6 12/03/86 2 40mL teflon/silicon River Q septa vials of water SEE ATTACHED TABLES A4-61 / CERTIFIED ENGINEERING & TESTING COMPANY, INC. Client: Dighton Industries Sample No.: 3636-1 River Q Samples Received: November 25, 1986 Date Analyzed: November 25, 1986 Parameter Concentration Detection Limit ug /1 ug/l Chloromethane ND Bromomethane ND Dichlorodifluoromethane ND Vinyl Chloride ND Chloroethane ND Methylene chloride ND Trichlorofluoromethane ND 1,1-Dichloroethene ND 1,1-Dichloroethane ND trans-1,2-Dichloroethene 1.7 Chloroform ND 1,2-Dichloroethane ND 1,1,1-Trichloroethaae ND Carbon tetrachloride ND Bromodichloromethane ND 1,2-Dichloropropane ND trans-1,3-Dichloropropene ND Trichloroethene ND Dibromochloromethane ND 1,1,2-Trichloroethane ND cis-1,3-Dichloropropene ND 2-Chloroethylvinyl ether ND Bromoform ND 1,1,2,2-Tetrachloroethane ND Tetrachloroethene 91.5 Chlorobenzene ND 1,3-Dichlorobenzene ND 1,2-Dichlorobenzene ND 1,4-Dichlorobenzene ND METHOD REFERENCE: EPA 600/4-82-057 Method 601 Purgeable Halocarbons ND = None Detected A4-62 CERTIFIED ENGINEERING & TESTING COMPANY, INC. Client: Dighton Industries Sample No.: 3636-2 Boiler Room Samples Received: November 25, 1986 Date Analyzed: Novem tPrtsegine Parameter Concentration Detection Limit ug/1 ug/1 Chloromethane ND Bromomethane ND Dichlorodifluoromethane ND Vinyl Chloride ND Chloroethane ND Methylene chloride ND Trichlorofluoromethane ND 1,1-Dichloroethene ND 1,1-Dichloroethane ND trans-1,2-Dichloroethene 3.4 Chloroform ND 1,2-Dichloroethane ND 1,1,1-Trichloroethane ND Carbon tetrachloride ND Bromodichloromethane ND 1,2-Dichloropropane ND trans-1,3-Dichloropropene ND Trichloroethene ND Dibromochloromethane ND 1,1,2-Trichloroethane ND cis-1,3-Dichloropropene ND 2-Chloroethylvinyl ether ND Bromoform ND 1,1,2,2-Tetrachloroethane ND Tetrachloroethene 156 Chlorobenzene ND 1,3-Dichlorobenzene ND 1,2-Dichlorobenzene ND 1,4-Dichlorobenzene ND METHOD REFERENCE: EPA 600/4-82-057 Method 601 Purgeable Halocarbons ND = None Detected A4-63 CERTIFIED ENGINEERING & TESTING COMPANY, INC. Client: Dighton Industries Sample No.: 3636-3 Summer Street Storm Sewer Line Samples Received: November 25, 1986 Date Analyzed: November 25, 1986 Parameter Concentration Detection Limit ug/l ug/l Chloromethane ND Bromomethane ND Dichlorodifluoromethane ND Vinyl Chloride ND Chloroethane ND Methylene chloride ND Trichlorofluoromethane ND 1,1-Dichloroethene ND 1 ,1-Dichloroethane ND trans-1,2-Dichloroethene ND Chloroform ND 1,2-Dichloroethane ND 1,1,1-Trichloroethane ND Carbon tetrachloride ND Bromodichloromethane ND 1,2-Dichloropropane ND trans-1,3-Dichloropropene ND Trichloroethene ND Dibromochloromethane ND 1,1,2-Trichloroethane ND cis-1,3-Dichloropropene ND 2-Chloroethylvinyl ether ND Bromoform ND 1,1,2,2-Tetrachloroethane ND Tetrachloroethene ND Chlorobenzene ND 1,3-Dichlorobenzene ND 1,2-Dichlorobenzene ND 1,4-Dichlorobenzene ND METHOD REFERENCE: EPA 600/4-82-057 Method 601 Purgeable Halocarbons ND = None Detected A4-64 /'-I I. CERTIFIED ENGINEERING & TESTING COMPANY, INC. Client: Dighton Industries Sample No.: 3636-4 Raytheon Storm Sewer Line Samples Received: November 25, 1986 Date Analyzed: November 25, 1986 Parameter Concentration Detection Limit ug/l ug/l Chloromethane ND Bromomethane ND Dichlorodifluoromethane ND Vinyl Chloride ND Chloroethane ND Methylene chloride ND Trichlorofluoromethane ND 1,1-Dichloroethene ND 1,1-Dichloroethane ND trans-1,2-Dichloroethene ND Chloroform ND 1,2-Dichloroethane ND 1,1,1-Trichloroethane ND Carbon tetrachloride ND Bromodichloromethane ND 1,2-Dichloropropane ND trans-1,3-Dichloropropene ND Trichloroethene ND Dibromochloromethane ND 1,1,2-Trichloroethane ND cis-1,3-Dichloropropene ND 2-Chloroethylvinyl ether ND Bromoform ND 1,1,2,2-Tetrachloroethane ND Tetrachloroethene 146 Chlorobenzene ND 1,3-Dichlorobenzene ND 1,2-Dichlorobenzene ND 1,4-Dichlorobenzene ND METHOD REFERENCE: EPA 600/4-82-057 Method 601 Purgeable Halocarbons ND = None Detected A4-65 CERTIFIED ENCINEERING & TESTING COMPANY, INC. Client: Dighton Industries Sample No.: 3643-1 Step Peak Roof Samples Received: November 28, 1986 Date Analyzed: December 1, 1986 Parameter Concentration Detection Limit ug/l ug/l Chloromethane ND 1 Dromomethane ND !ichlorcd if luoromethare ND Vinyl Cnloride - ND Chlloroethane ND Methylene chloride ND Trichlorofluorometharie ND 1 1.1-Dichloroethene ND 1,1-Dichloroethane ND trans-1,2-Dichlorocthene ND 1 Ch loroform ND 1,2-Dichloroetiane ND I 1,1,1-Trichloroethane ND 1 Carbon tetrachloride ND 1 Bromodichloromethane ND 1 1,2-Dichloropropane ND 1 trans-1 ,3-Dichloropropene ND Trichloroethene ND 1 Dibromochloron:ethane ND 1,1,2-Trichlcroethane ND cis-1,3-Dichlorcpropene ND 2-Chloroethylvinyl ether ND Bromoform ND 1,1:2,2-Tetrachloroethane ND Tetrachloroethene ND Chlorobenzene ND 1,3-Dichlorobenzene ND 1,2-Dichlorobenzene ND 1,4-Dichlorobenzene ND METHOD REFERENCE: EPA 600/4-82-057 Method 601 Purgeable Halocarbons ND = None Detected A4-66 I I I I I I I I U I U I I U I I I I I CERTIFIED ENGINEERING & TESTING COMPANY, INC. Client: Dighton Industries Sample No.: 3643-2 Step Peak Roof with roofing (rubber) Samples Received: November 28, 1986 Date Analyzed: December 1, 1986 Parameter Concentration Detection Limit ug/l ug/l Chloromethane ND Bromomethane ND Dichlorodifluoromethane ND Vinyl Chloride ND Chloroethane ND Methylene chloride ND Trichlorofluoromethane ND 1,1-Dichloroethene ND 1,1-Dichloroethane ND trans-1,2-Dichloroethene ND Chloroform ND 1,2-Dichloroethane ND 1,1,1-Trichloroethane ND Carbon tetrachloride ND Bromodichloromethane ND 1,2-Dichloropropane ND trans-1,3-Dichloropropene ND Trichloroethene ND Dibromochloromethane ND 1,1,2-Trichloroethane ND cis-1,3-Dichloropropene ND 2-Chloroethylvinyl ether ND Bromoform ND 1,1,2,2-Tetrachloroethane ND Tetrachloroethene ND Chlorobenzene ND 1,3-Dichlorobenzene ND 1,2-Dichlorobenzene ND 1,4-Dichlorobenzene ND METHOD REFERENCE: EPA 600/4-82-057 Method 601 Purgeable Halocarbons ND = None Detected A4-67 CERTIFIED ENGINEERING & TESTING COMPANY, INC. Client: Dighton Industries Sample No.: 3643-3 Step Peak Roof with roofing (glue) Samples Received: November 28, 1986 Date Analyzed: December 1, 1986 Parameter Concentration Detection Limit ug/1 ug/1 Chloromethane ND Bromomethane ND Dichlorodifluoromethane ND Vinyl Chloride ND Chloroethane ND Methylene chloride ND Trichlorofluoromethane ND 1,1-Dichloroethene ND 1,1-Dichloroethane ND trans-1,2-Dichloroethene ND Chloroform ND 1,2-Dichloroethane . ND 1,1,1-Trichloroethane ND Carbon tetrachloride ND Bromodichloromethane ND 1,2-Dichloropropane ND trans-1,3-Dichloropropene ND Trichloroethene ND Dibromochloromethane ND 1,1,2-Trichloroethane ND cis-1,3-Dichloropropene ND 2-Chloroethylvinyl ether ND Bromoform ND 1,1,2,2-Tetrachloroethane ND Tetrachloroethene ND Chlorobenzene ND 1,3-Dichlorobenzene ND 1,2-Dichlorobenzene ND 1,4-Dichlorobenzene ND METHOD REFERENCE: EPA 600/4-82-057 Method 601 Purgeable Halocarbons ND = None Detected A4-68 CERTIFIED ENGINEERING & TESTING COMPANY, INC. Client: Dighton Industries Sample No.: 3643-4 Loading Roof water Samples Received: November 28, 1986 Date Analyzed: December 1, 1986 Parameter Concentration Detection Limit ug/1 ug/1 Chloromethane ND Bromomethane ND Dichlorodifluoromethane ND Vinyl Chloride ND Chloroethane ND Methylene chloride ND Trichlorofluoromethane ND 1,1-Dichloroethene ND 1,1-Dichloroethane ND trans-1,2-Dichloroethene ND Chloroform ND 1,2-Dichloroethane ND 1,1,1-Trichloroethane ND Carbon tetrachloride ND Bromodichloromethane ND 1,2-Dichloropropane ND trans-1,3-Dichloropropene ND Trichloroethene ND Dibromochloromethane ND 1,1,2-Trichloroethane ND cis-1,3-Dichloropropene ND 2-Chloroethylvinyl ether ND Bromoform ND 1,1,2,2-Tetrachloroethane ND Tetrachloroethene ND Chlorobenzene ND 1,3-Dichlorobenzene ND 1,2-Dichlorobenzene ND 1,4-Dichlorobenzene ND METHOD REFERENCE: EPA 600/4-82-057 Method 601 Purgeable Halocarbons ND = None Detected A4-69 CERTIFIED ENGINEERING & TESTING COMPANY, INC. DIGHTON INDUSTRIES Sampled: December 3, 1986 Date Analyzed: December 7, 1986 Location: Floor Drain-Print Shop Matrix: Sediment Sample No.: 3654-3 Parameter Concentration Detection Limit ug/kg ug/kg Chloromethane ND 5 Bromomethane ND 5 Dichlorodifluoromethane ND 5 Vinyl Chloride ND 5 Chloroethane ND 5 Methylene chloride ND 5 Trichlorofluoromethane ND 5 1,1-Dichloroethene ND 5 1,1-Dichloroethane .. ND 5 trans-1,2-Dichloroethene ND 5 Chloroform ND 5 1,2-Dichloroethane ND 5 1,1,1-Trichloroethane ND 5 Carbon tetrachloride ND 5 Bromodichloromethane ND 5 1,2-Dichloropropane ND 5 trans-1,3-Dichloropropene ND 5 Trichloroethene ND 5 Dibromochloromethane ND 5 1,1,2-Trichloroethane ND 5 cis-1,3-Dichloropropene ND 5 2-Chloroethylvinyl ether ND 5 Bromoform ND 5 1,1,2,2-Tetrachloroethane ND 5 Tetrachloroethene ND 5 Chlorobenzene ND 5 1,3-Dichlorobenzene ND 5 1,2-Dichlorobenzene ND 5 1,4-Dichlorobenzene ND 5 METHOD REFERENCE: SW846, 2nd Edition Method 8010 Purgeable Halocarbons ND = None Detected A4-70 CERTIFIED ENGINEERING & TESTING COMPANY, INC. DIGHTON INDUSTRIES Sampled: December 3, 1986 Date Analyzed: December 6, 1986 Location: Sink Trap -Print Shop Matrix: Liquid Sample No.: 3654-4 Parameter Concentration Detection Limit ug/l ug/1 Chloromethane ND Bromomethane ND Dichlorodifluoromethane ND Vinyl Chloride ND Chloroethane ND Methylene chloride ND 1 Trichlorofluoromethane ND 1 1,1-Dichloroethene ND 1,1-Dichloroethane -- ND trans-1,2-Dichloroethene ND 1 Chloroform 8 1 1,2-Dichloroethane ND 1 1,1,1-Trichloroethane ND 1 Carbon tetrachloride ND 1 Bromodichloromethane 3 1 1,2-Dichloropropane ND 1 trans-1,3-Dichloropropene ND 1 Trichloroethene ND 1 Dibromochloromethane Trace 1 1,1,2-Trichloroethane ND 1 cis-1,3-Dichloropropene ND 1 2-Chloroethylvinyl ether ND 1 Bromoform ND 1 1,1,2,2-Tetrachloroethane ND 1 Tetrachloroethene ND Chlorobenzene ND 1,3-Dichlorobenzene ND 1,2-Dichlorobenzene ND 1 1, 4-Dichlorobenzene ND 1 "Trace" indicates probable presence below listed detection limit. METHOD REFERENCE: EPA 600/4-82-057 Method 601 Purgeable Halocarbons ND = None Detected A4-71 CERTIFIED ENGINEERING & TESTING COMPANY, INC. DIGHTON INDUSTRIES Sampled: December 3, 1986 Date Analyzed: December 6, 1986 Location: Catch basin before Raytheon Matrix: Liquid Sample No.: 3654-5 Parameter Concentration Detection Limit ug/l ug/l Chloromethane ND Bromomethane ND Dichlorodifluoromethane ND 1 Vinyl Chloride ND Chloroethane ND Methylene chloride ND Trichlorofluoromethane ND 1,1-Dichloroethene ND 1,1-Dichloroethane - ND 1 trans-1,2-Dichloroethene ND 1 Chloroform ND 1 1,2-Dichloroethane ND 1 1,1,1-Trichloroethane ND 1 Carbon tetrachloride ND 1 Bromodichloromethane ND 1 1,2-Dichloropropane ND 1 trans-1,3-Dichloropropene ND 1 Trichloroethene ND Dibromochloromethane ND 1 1,1,2-Trichloroethane ND cis-1,3-Dichloropropene ND 2-Chloroethylvinyl ether ND 1 Bromoform ND 1,1,2,2-Tetrachloroethane ND Tetrachloroethene ND 1 Chlorobenzene ND 1 1,3-Dichlorobenzene ND 1,2-Dichlorobenzene ND 1,4-Dichlorobenzene ND METHOD REFERENCE: EPA 600/4-82-057 Method 601 Purgeable Halocarbons ND = None Detected A4-72 CERTIFIED ENGINEERING & TESTING COMPANY, INC. DIGHTON INDUSTRIES Sampled: December 3, 1986 Date Analyzed: December 6, 1986 Location: River Q Matrix: Liquid Pump House Out Fall Sample No.: 3654-6 Parameter Concentration Detection Limit ug/l ug/1 Chloromethane ND Bromomethane ND Dichlorodifluoromethane ND Vinyl Chloride ND Chloroethane ND Methylene chloride ND Trichlorofluoromethane ND 1,1-Dichloroethene ND 1,1--Dichlor-oethane- .-- 1.6 Erans-1,2-Dichloroethene ND Chloroform ND 1,2-Dichloroethane ND 1,1,1-Trichloroethane ND Carbon tetrachloride ND Bromodichloromethane ND 1,2-Dichloropropane ND trans-1,3-Dichloropropene ND Trichloroethene 3.1 Dibromochloromethane. ND 1,1,2-Trichloroethane ND cis-1,3-Dichloropropene ND 2-Chloroethylvinyl ether ND Bromoform ND 1,1,2,2-Tetrachloroethane ND Tetrachloroethene 46 Chlorobenzene ND 1,3-Dichlorobenzene ND 1,2-Dichlorobenzene ND 1,4-Dichlorobenzene ND METHOD REFERENCE: EPA 600/4-82-057 Method 601 Purgeable Halocarbons ND = None Detected A4-73