Westinghouse Electric Corporation Bloomington Project 11 Stanwix Street Pittsburgh, PA 15222-1384 412-642-2575 WIN 272-2575 September 28, 1995 To: Distribution List Subject: Sampling Data for Sediment and Water Sampling of Nine Peripheral Springs at Lemon Lane On August 31, 1995 sampling was done for PCB at the nine springs that had sporadic dye tracer indications. The preliminary data for this sampling event is provided in the enclosed report. Forty-five sediment samples were collected. One sediment sample at the most downstream point of Stoney West had a very low concentration of PCB reported. A portion of the remaining sample was reanalyzed and was BDL. Also one water sample taken at Snoddy had a concentration of PCB slightly above the detection limit. No PCB was detected in the sediment associated with Snoddy. Within the next week data will be available from the laboratory for the residential well sampling that was recently conducted. It is expected that this preliminary data will be provided to the parties in early October. The FSP provides that the parties are to meet to discuss the data at approximately three months to six months. This is to give us the opportunity to adjust frequency and locations of sampling based on consistency and levels of PCB concentrations measured. With the data that is now available we need to get together and determine if any adjustments to the Field Sampling Plan are appropriate at this time. I would suggest a meeting of the Project Managers on either October 17 or 18. Please contact Judy Campbell at 412-642-3160 (FAX: 412-642-3008) as soon as possible on your availability for these dates. Sincerely, Dorothy M. Alke Project Director BP95-0142 Enclosure 1.0 INTRODUCTION The Lemon Lane Field Sampling Plan (FSP) requires that sediment and water samples be taken at the nine springs that had sporadic dye tracer indications. Westinghouse Electric personnel collected these samples on August 31, 1995 in accordance with Section 2.6.1.2 and Section 2.7.3.1 of the FSP. One grab water sample and one sediment sample were taken at the emergence of the spring. One sediment sample was taken at each of four downstream locations. The nine springs sampled were: Stoney West Stoney East WN-1 WN-2 ICG-6 Snoddy Bypass 37 Urban Crestmont This report presents the analytical results and field data associated with this sampling event. Maps provided by the City of Bloomington have been marked to indicate the sample locations. 2.0 Methods On August 22, 1995, prior to the sampling event, representatives of each of the Consent Decree parties toured the areas associated with each of the nine springs. Five sample locations were identified at each of the springs. Flags were placed at each location and the locations were marked on the area maps. A sampling team from Westinghouse and one from Earthtech returned to these locations on August 31, 1995 to conduct the sampling event. Sampling started at the most downstream location at each stream. Sampling then proceeded upstream. At the spring emergence point grab water samples were taken by both Westinghouse and Earthtech. After the water samples were taken Westinghouse and Earthtech each took a sediment sample at this location. Westinghouse personnel collected grab sediment samples by hand. A protective glove was used for each hand sample. Sediment that was too compacted to be taken by hand was loosened using a stainless steel trowel. After each sample the trowel was decontaminated using an alcohol rinse followed by a distilled water rinse. After the grab water samples were taken, temperature, turbidity and conductivity of the water were measured. The flow rate provided was estimated. Each sample was labeled and sample identification recorded on a chain of custody form. The samples were stored and transported in insulated coolers that contained wet ice. Custody of the samples was maintained by the field personnel until delivery to the analytical laboratory. The water and sediment samples were analyzed by Heritage Laboratories, Inc. Located in Indianapolis, Indiana. The water samples were analyzed to a detection limit of 0.1 parts per billion (ppb) for all arochlors, except Arochlor 1221. This Arochlor had a detection limit of 0.5 ppb. EPA Method 608/SW-846 Method 8080 was used for all water samples. The sediment samples were analyzed to a detection limit of 0.1 parts per million (ppm), except for Arochlor 1221. This Arochlor had a detection limit of 0.5 ppm. All sediment samples were analyzed using EPA method 608/SW-846 Method 3550. 3.0 Results All data provided in this report is considered preliminary until validated. Figure 1 shows the location of the springs associated with the Lemon Lane landfill. Field measurements and analytical data for the water samples are presented in Table 1. Laboratory certificates of analysis for the water analyses are included in Appendix A. Copies of pages of the field log book are provided in Appendix C. It should be noted that springs WN-1, WN-2 and ICG-6 were dry and water samples could not be taken. All water samples were BDL except for Snoddy Spring which had a PCB concentration reported of 0.15 ppb. Analytical results for the sediment samples are presented in Table 2. Station 1 is the most upstream sample and sample 5 is the most downstream sample. Figures 2 to 10 show the specific locations of the samples taken. The locations are identified by the corresponding sample number. All sediment samples were BDL except for the Stoney West at sample Station 5. The first sample analyzed had a concentration of 0.67 ppm on a dry basis. A second sample from the same 4 oz. sample jar was analyzed and was reported BDL.