AP P EN DIX C | Env ir onmen t al St ud i e s C
2001-2003 Phase I ESA’s A Phase I ESA was conducted by BCA (BCA 2001, BCA 2003a, BCA 2003b, BCA 2003c) on the CSX Railroad Corridor, McDoel Yard, former Indiana Creosoting and related adjoining sites in Bloomington in 2001-2003. Within the area of the switchyard, the following areas of environmental concern were identified: 1. Some areas of the railroad ballast had visible CA&C base. 2. Minor oil staining was present on the ties and rail ballast throughout the length of the rail line. 3. A 150,000 gallon AST containing fuel oil was documented on the switchyard property. Although no known releases were found, the tank was apparently situated within earthen containment, and complete records of its use and decommissioning are unavailable. Release from the tank and the associated piping would have directly impacted soil and possibly groundwater. In addition, former employees reported that routine small releases occurred. 4. Releases in the form of oils, solvents, and fuels are possible from the turntable, roundhouse, machine shops, and outbuildings associated with the roundhouse. Because of the long history or railroad use and locomotive maintenance, the report states that it is likely that at least some residual soil and/or groundwater contamination remains. 5. A potential exists for at least small releases of contaminants to the soil and/or groundwater from open dumping and burning as well as chemical dumping. 6. Coal, ash, and cinders were present in the McDoel Yard. Coal combustion byproducts often have high levels of metals and PAHs. The leachability of these contaminants is usually low. 7. Electrical transformers were found on the switchyard property and appeared to be old. These transformers likely belonged to the local power company. Potential for impact from adjoining sites, including: • Creosoting plant site adjoining to the southeast • K&W Products, 227-241 W Grimes Lane – It is likely that contamination exists on the switchyard property near this site. Contamination was found on this site, and evidence indicated that the source was the rail yard according to the owner’s consultant. The nature of the contamination is unknown. • IU Bus Garage, 120 W Grimes – Potential exists for contamination from waste oil handled on this site which adjoins the switchyard • South Walnut Street Businesses – There is limited potential that contamination from these sites would impact the switchyard. Extent of contamination from these sites, if any, is unknown. • Clear Creek – This adjoins the switchyard to the east. Records were found indicating numerous releases have occurred and may impact the switchyard, and Monroe County Health Department records indicate that Clear Creek has received PCB contamination.
2003 Phase II ESA A Phase II ESA (BCA 2003d) was conducted by BCA dated November 25, 2003 to confirm the presence or absence of the Recognized Environmental Conditions (REC’s) identified in the Phase I ESA throughout the Corridor and McDoel yard. The following environmental conditions were investigated as a part of this report: Fuel oil AST – Switchyard A 150,000 gallon above ground fuel oil tank (AST) was located in the switchyard from at least 1915 until 1973. Total Petroleum Hydrocarbons (TPH) were detected in soil and groundwater samples around the AST area. Since the completion of the Phase II, IDEM rules have changed. TPH is no longer a chemical of concern according to current IDEM guidance. In addition, no benzene, toluene, ethylbenzene, and zylenes (BTEX) was found in any of the groundwater samples; therefore, the sample results in the area of the fuel oil AST are not a concern. The absence of significant BTEX or PAHs in the groundwater suggests that the diesel has degraded over time and the residual has relatively low toxicity. Roundhouse, turntable, oil house, maintenance buildings – Switchyard The results of the investigation in this area indicate that the only concern is related to coal, ash, and cinders. No other chemicals of concern were identified exceeding closure levels. Yard office fueling area and floor tile – Switchyard The results of the investigation in this area indicate that no chemicals of concern were identified exceeding closure levels related to petroleum. Floor tiles in the building were tested and found to contain asbestos. It was recommended that an Asbestos Maintenance Plan be prepared for the yard office or the floor tile be removed from the facility. K&W Products, 227-241 W Grimes The site was a manufacturer of chemicals for the automobile industry for many years and stored chemicals in underground tanks. No field evidence of contamination was observed in two probes on the CSX property adjacent to the site. No VOCs, diesel or gasoline range TPH was detected in samples from this location. MJ Dallas, 1710 S Walnut The site has been a car lot since at least 1986 and is an active low priority Leaking Underground Storage Tank (LUST) site. No field or laboratory evidence of petroleum was observed in soil samples from two probes along the property. Wee Willie’s spill report, 1724 S Walnut A 1992 spill report in the Monroe County Health Department files indicates that containers were found on the CSX property behind Wee Willies Restaurant. The report indicated that a bucket of Texaco fluid (trichloroethylene) was found with its top rusted open, an open 5 gallon bucket of paint-like material was on bare ground, and a 55-gallon drum labeled regular gasoline
was fond with other trash. No indication of the exact location of the materials was given, and no indication of what was done was provided. The health department report does not give evidence for release to the environment. A monitoring well was found on the CSX property behind Wee Willies, but CSX has no knowledge of its origin. A sample from the well was found to contain 8.8 ppb trichloroethylene (TCE) which is above the RISC default residential limit of 5 ppb. No significant PID readings were obtained from a limited soil gas survey of the area and no VOCs were detected in the soil or groundwater adjacent to the monitoring well. The presence of TCE in the groundwater could be a residual from minor spillage in 1992. However, no apparent continuing source in the soil was found. The TCE could also be due an upgradient source (there are present and former automotive sites located upgradient). Coal, Ash & Cinders – Switchyard and rail corridor Coal ash and cinders was used extensively as fill in the McDoel Yard and along the CSX corridor. Cinder fill is typically present to a depth of two to six feet in the switchyard in layers of cinder and gravel. Cinders were placed on the surface throughout the switchyard, but in many areas a topsoil has developed above the cinder fill. Arsenic, lead, and Polycyclic Aromatic Hydrocarbon (PAH) contamination was found throughout the switchyard and rail corridor. Indiana University Bus Garage, 120 W Grimes The oil staining observed in the Phase I was investigated. No field evidence of contamination was observed. No contamination was found in shallow soils or groundwater associated with this area of concern. Amoco Oil Bulk Storage Site, 29 W 1st The site has been an active bulk site since at least 1927. Pipes were still present on the CSX RoW that were probably part of a rack that was used prior to the 1970s to off-load petroleum products from rail cars. Field evidence of the petroleum was observed in probes adjacent to the pipes at depths of 9.5 to 12 feet. Gasoline range TPH was detected in one of three probes at 8-12 feet at 2,200 ppm, well above the IDEM limit. Evidence of contamination was observed at a depth of 8 to 12 feet, but no evidence of contamination was found in more shallow intervals. Based on the absence of evidence of shallow contamination, it is likely that the petroleum observed at 8-12 feet migrated laterally from the adjoining bulk plant and probably did not originate from surface spills during off-loading of fuel from rail cars. Bloomington Hospital Maintenance Facility, S Morton Bulk petroleum storage plants and an auto repair shop formerly occupied this site and were situated across Morton Street from the railroad. Field evidence of petroleum was observed in one of two probes at 10-12 and 16-20 feet. No BTEX was detected in the groundwater sample collected from this location.
Petroleum detected at this location likely originated from an offsite petroleum source located upgradient. Because BTEX was not found in any of the groundwater samples, the results in this area are not a concern per current IDEM guidance. The absence of significant BTEX or PAHs in the groundwater suggests that the diesel has degraded over time and the residual has relatively low toxicity. Clear Creek Sediment Clear Creek acts as the receiving water for the West and East Forks of Clear Creek and surface and subsurface releases from north Walnut Street south through Country Club Drive. Information from the Monroe County Health Department indicates that Clear Creek has received PCB contamination. With the exception of a single set of pole-mounted transformers near the roundhouse, no use or disposal of PCBs on the site has been identified. Three sediment samples from the bank of the Clear and two sediment samples from upstream locations on the West Fork of Clear Creek were tested for PCBs and SVOCs. Low levels of SVOC and PCBs were detected in all of the samples, but were below RISC default residential limits. No PCBs were detected in samples containing waste oil from the maintenance shed area. The source of PCBs detected in the sediment is likely runoff from upstream sources. Indiana Woodtreating Site, Country Club No additional investigation of the former creosoting site was performed for this Phase II assessment. On-going investigation is being conducted by CSX.
2005 Phase II ESA – CSX Railroad Corridor A Phase II ESA (BCA 2005) was conducted by BCA dated September 15, 2005 to confirm the presence or absence of the Recognized Environmental Conditions (REC’s) identified in the Phase I ESA throughout the CSX railroad corridor. The following environmental condition was investigated as a part of this report: Coal ash and cinders was used extensively as fill along the CSX corridor. Cinder fill is typically present to a depth of one to three feet in the switchyard in layers of cinder and gravel. Cinders were placed on the surface throughout the switchyard, but in many areas a topsoil has developed above the cinder fill. Arsenic, lead, and Polycyclic Aromatic Hydrocarbon (PAH) contamination was found throughout the rail corridor
2006 Supplemental Phase II ESA A Supplemental Phase II ESA (BCA 2006) was conducted by BCA in 2006 to evaluate the potential for migration of Chemicals of Concern (CoC’s) to groundwater and their impact on the groundwater, weather Coal, Ash, and Cinders (CA&C) was present in all locations along the corridor, what, if any, existing surface materials are below RDCL’s and where acceptable surface materials are thick enough to prevent direct exposure to CA&C.