August 20, 2003
VIACOM

1.0 BACKGROUND

This report summarizes the results of surface water, flow and water level monitoring work completed by Viacom Inc. during the second quarter of 2003 at the Neal's Landfill site.

Surface water monitoring was performed at a total of four locations (springs and streams) in accordance with the April 2002 Long Term Groundwater Monitoring Plan (LTGWMP) and the April 2002 Groundwater Investigation Plan (GIP) for this site. Continuous monitoring of flow and water levels was also performed at four locations.

2.0 SURFACE WATER MONITORING

The monitoring work described in this report was performed on March 17, April 10 and May 14, 2003. The March-May time period constitutes the second reporting quarter for Realms Landfill for 2003.

Scope of Work

The scope of water sampling for this monitoring period comprised monthly sampling at South Spring and North Spring, as stipulated in the LTGWMP and GIP and summarized in Table 1. Taylor Spring and Branam Spring, which are sampled on a semi-annual schedule, were sampled April 10, 2003. The approximate locations of these stations are shown on Figure I, Monitoring and Sampling Locations.

Sample Collection and Handling

Samples at the spring locations were collected by carefully filling a new disposable beaker. The water was transferred from the beaker into pre-cleaned amber glass l-liter bottles supplied by the analytical laboratory. Routine sampling parameters including temperature and conductivity were measured and recorded.

Samples were analyzed by Heritage Lab of Indianapolis, Indiana. The samples were analyzed to a detection limit of 0.1 parts per trillion (ppb) for all PCB parameters (except Aroclor 1221; detection limit 0.2 ppb) by EPA SW-846 method 8082. Samples \vcre also analyzed for total suspended solids (TSS) by EPA method 160.2.

Quality Assurance

For quality assurance purposes a duplicate sample and a field blank were collected during each sampling event. All environmental and blank samples were labeled and logged onto a chah~-of: custody form. The samples were stored and transported on ice in insulated coolers. Custody of the water samples was maintained by Viacom until shipment to the analytical laboratory.

Field blank samples for these sampling events were NL1909, NL1913 and NL1984. No PCBs were detected in any of these samples.

Analytical Results for Surface Water Samples

Field parameter measurements, PCB analytical results, and QA/QC results for samples collected during this reporting period are reported in Tables 2 and 3. Historical data for the two Northwest Spring System sampling stations specified in the LTGWMP, South Spring and North Spring, are also reported in Tables 2 and 3, respectively. Historical data for the two Southwest Spring System sampling stations, Branam Spring and Taylor Spring, are reported in Tables 4 and 5, respectively. Each table summarizes historical groundwater monitoring data collected since the completion of the remedy in November 1999. Copies of the chain-oi:custodv tonics arc provided in Appendix A. Copies of the certificates of analysis arc provided in Appendix R. A validation summary for these samples appears in Appendix C. Copies of the field sampling data sheets are on file at PSARA Technologies, Inc.'s Bloomington Branch Office.

3.0 CONTINUOUS FLOW AND WATER LEVEE MONITORING

The purpose of flow and water level monitoring is to evaluate site-specific data characterizing site hydrologic response under storm and non-storm conditions, and to evaluate correlations between PCB concentrations, spring flow and groundwater elevations.

Scope of Work

The scope of groundwater level and flow monitoring during this reporting period involved the use of dedicated instrumentation to record water level and other parameters as summarized in Table 6.

Water lever transducers, water level data logging equipment, and piezometer crest gauges were operated during all or part of the period from March 2003 through May 2003 at the following locations:

The approximate locations of these flow and water level monitoring stations are shown on Figure 1.

Flow and Water Level Plots

The following plots for the monitored stations for this reporting period are attached:

• Flow data and monthly cumulative rainfall at Conard's Branch weir
• Water elevation at MW EPA-5a and PZ-1

Quality Assurance

As a quality assurance check in documenting rain events and changes in flow, rainfall records for this time period were obtained from the Purdue University State Climatologist's web site (shadow.agru.purdue.edu sc.index.html) for the rain gauge station at the Monroe County Airport. This record was obtained for comparison to the downloaded transducer data at the various monitoring locations. Raw rainfall data from the web site appears in Appendix 1). Airport rain events ot approximately 0.25 inch or more are indicated on the flow and water level plots. In addition' the plots for the Conard's Branch weir also show cumulative rainfall data from both the airport and from a rain gauge at Neal's Landfill that is maintained by Viacom.

As a further data quality check, manual water level measurements were made during and after significant storm events. The purpose of the manual checks was to verify instrument readings in particular those for installations susceptible to the accumulation of silt and/or algae growth. Manual field check data collected this reporting quarter are shown on the data plots.

A complete instrument maintenance log for all of the Neal's Landfill installations is attached. This log details the installation, re-indexing, and maintenance histories of each transducer and data logger present at Neal's Landfill during the First Quarter.

Discussion

Data for this period are complete except as follows:

The mini-Troll transducer at MW EPA-5a did not collect data from March 6-20. This instrument began operating properly again on March 20, and has provided quality data since that date. Therefore, this data gap was presumedly caused by operator error.

Crest Gauges

The purpose of these gauges is to provide an indication of maximum water level in the piezometers that do not contain transducers. Crest gauge measurements appear in Table 7. The crest gauges in Piezometers 2, 3, 4, and 5 showed no apparent movement during the second quarter of 2003.

Scope of Non-Routine Activities

Pumping operations at the new Conard's Branch Pump (CBP) station continued during the second quarter of 2003. The system operated in both `'continuous low flow" (CLF) mode and full automatic mode during the quarter depending on daily temperature and flow.

Periodic maintenance of the system during this quarter involved the cleaning of accumulated sediment and algae from the intake screens on several occasions. In addition, a replacement (spare) set of intake screens was fabricated and a supplemental pumping system involving two sump pumps was constructed to handle periods of high flow on Conard's Branch.

Continuous operation in automatic mode is expected to continue uninterrupted during the third quarter of 2003.

Potentiometric Data

On April 23, 2003, water levels were measured by hand at eleven monitor wells at the site and the Conard residential well. The depth to water in the Conard residential well was 2().45-ft. at 14:05 hours on this date. The other specific measurement locations are listed in the table insert on Figure 1, which also depicts the resulting potentiometric surface across the site on this date.

If you have questions regarding the sampling and flow/water level monitoring activities or findings for this reporting quarter, please call Mike McCann at (812) 335-0424.

Sincerely,

Dorothy M. Alke
Project Director