MEMORANDUM. Pleasant Run Crossing Prospect Place West. The boundaries and approximate acreages for each of the parcels are depicted on Figure 1.

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1 MEMORANDUM Date: May 19, 2017 To: From: Ms. Shannon Stahley Citizens Energy Group August Mack Environmental Subject: Environmental Conditions at Citizens Property Associated with the Former Coke and Manufactured Gas Site This memorandum presents a brief summary of the environmental conditions, based on results of investigation work completed to date, at each of the seven parcels that make up the Citizens property associated with the former coke and manufactured gas plant. The originally designated parcels (Gas Supply, Southeastern, Coal Storage, and Batteries & By-Products) and Pleasant Run Creek (PRC) constitute the area of operations for the former plant. The remaining parcels (Twin Aire, Salvage Yard, and South 40), were not utilized for operations, but rather were acquired by Citizens over multiple years. As part of redevelopment activities, Citizens has rebranded its former coke and manufactured gas site on Prospect Street as Pleasant Run Crossing. Accordingly the parcel names have been updated to the following: Original Parcel Designation Twin Aire Gas Supply Southeastern Coal Storage Batteries & By-Products South 40 Salvage Yard Updated Parcel Designation Twin Aire Pleasant Run Crossing South Pleasant Run Crossing North Pleasant Run Crossing Prospect Place East Prospect Place West The boundaries and approximate acreages for each of the parcels are depicted on Figure 1. Pleasant Run Crossing, Pleasant Run Crossing North, Pleasant Run Crossing South, and Prospect Place East are currently undergoing investigation and remediation under the oversight of the Indiana Department of Environmental Management (IDEM) Voluntary Remediation Program (VRP). Pleasant Run Crossing, Pleasant Run Crossing North, and Pleasant Run Crossing South were entered into the VRP in 2005 and Prospect Place East was added in Twin Aire and Prospect Place West have both had multiple phases

2 Environmental Conditions Memorandum May 19, 2017 Former Indianapolis Coke Plant of investigation performed by Citizens to assess environmental impacts, but are not currently within any regulatory programs administered by the IDEM. Since none of the parcels are currently zoned Residential, analytical data has been compared to IDEM s Remediation Closure Guide (RCG) commercial/industrial and excavation (designed to protect construction workers conducting excavation activities) Direct Contact criteria for surface soil and subsurface soils. Groundwater data has been compared to IDEM s Residential criteria for groundwater, since the RCG does not contain commercial/industrial screening criteria for groundwater. The potential pathways for human exposure at the site are direct contact with surface and subsurface soils, ingestion of shallow groundwater, direct contact with surface water, and direct contact with sediment. Surface and subsurface soil exposure is currently under control through controlled access to the site and the use of properly trained workers during construction land disturbance activities. Shallow groundwater is not used at the site so this pathway is currently incomplete. Surface water and sediment data has been compiled into a human health risk assessment and determined to not be an acute risk to human receptors at this time. For purposes of this submittal, the discussion has been broken into the parcels being evaluated as part of the VRP (the three (3) Pleasant Run Crossing parcels and Prospect Place East), which have publicly available submittals documenting environmental conditions; and the remaining parcels (Twin Aire and Prospect Place West), which have had investigations conducted, but do not have publicly available reports. VRP PARCELS VRP Status The four parcels being addressed through the VRP process have been assigned VRP # A Remediation Work Plan (RWP) for Prospect Place East was submitted in 2010 and approved by the IDEM in March The RWP has been executed and a completion report has been submitted to the IDEM seeking concurrence that no further remediation is required at this time. In 2014, Citizens prepared and submitted a RWP for Pleasant Run Crossing North and Initial Investigation Reports for Pleasant Run Crossing South, Pleasant Run Crossing, and PRC, which documented parcel specific investigation activities and results completed at the time of submittal. Citizens is currently working toward filling known data gaps on each parcel and anticipates submitting a site-wide RWP to the IDEM in Details pertaining to the status of each of the parcels is further described below. Constituents of Concern Constituents of Concern (COCs) for the VRP parcels are based on IDEM s 2008 Manufactured Gas Plants (MGPs) Contaminants of Concern (COCs) guidance document. 2

3 Environmental Conditions Memorandum May 19, 2017 Former Indianapolis Coke Plant These COCs are volatile organic compounds (VOCs), semi-volatile organic compounds (SVOCs) - including polycyclic aromatic hydrocarbons (PAHs), priority pollutant metals Al, Sb, As, Ba, Cd, Cr, Cu, Fe, Pb, Mn, Hg, Ni, Se, Ag, Sr, Tl, Sn, V, and Zn, - polychlorinated biphenyls (PCBs), ammonia, nitrate and nitrite, total cyanide, weak acid dissociable (WAD) cyanide, and total phenolics. Prospect Place East 22 acres Two phases of environmental investigation were conducted at the property in October and November Soil borings were advanced in 29 locations across the parcel, and 39 soil samples were collected and submitted for analyses. Groundwater monitoring wells were installed at 17 locations across the parcel. A figure depicting investigation locations is included as Figure 2. These investigations revealed that the soils at Prospect Place East are covered by a layer of coke (approximately 2 feet thick). The coke overlies sandy silt, sandy clay, or gravel to a depth of approximately 10 feet below grade (ft bg), and clayey sand to sandy clay to a depth of approximately 18 ft bg. Some fill materials (bricks, coke, coal, sand, wood debris, and rubber materials) were identified in the upper approximately 10 ft. Saturated soils were identified in low-yielding, sandy intervals between a depth of approximately 10 ft and 18 ft, and silty clay was encountered at a depth of approximately 18 ft bg. Investigation activities did not penetrate this unsaturated silty clay unit, which was observed consistently across the Site; however, soil samples were collected from the upper-most portion of the unit for the purpose of vertical delineation. Subsurface soil and groundwater data indicated that impacts above industrial screening criteria existed in the northwest portion of the parcel. Site characterization was presented in the RWP and approved by the IDEM. Remedial measures included the installation of an interceptor trench to capture a surface water expression in the northwest corner of the parcel and an Environmental Restrictive Covenant (ERC) that limits parcel usage to commercial/industrial, prohibits the use of site groundwater, and requires that vapor intrusion (VI) be addressed in any future buildings at the parcel. The installation of the interceptor trench as well as additional groundwater monitoring has been completed and a Remediation Completion Report has been filed with the IDEM. Citizens is currently responding to IDEM comments and anticipates that no further action is necessary at the Prospect Place East parcel in order to receive a Certificate of Completion from the IDEM. Pleasant Run Crossing Parcels Citizens conducted investigation of the following environmental media at the three Pleasant Run Crossing parcels and within PRC; surface soils, subsurface soils, groundwater, sediment, and surface water. A summary of investigation activities to date is included below. 3

4 Environmental Conditions Memorandum May 19, 2017 Former Indianapolis Coke Plant Investigation Summary Parcel Monitoring Groundwater Soil Soil Wells Samples Borings Samples Pleasant Run Crossing South Pleasant Run Crossing North Pleasant Run Crossing Pleasant Run Creek NA 64 (surface water) Deep Groundwater Totals ,205 The three Pleasant Run Crossing parcels total approximately 87 acres. PRC, which transects the parcels, runs northeast to southwest across the site. Pleasant Run Crossing North and Pleasant Run Crossing South border PRC to the northwest and Pleasant Run Crossing borders PRC to the southeast. PRC is confined to a relatively narrow, incised channel that is approximately feet below the surrounding grade level. The subsurface across the three Pleasant Run Crossing parcels consists of mixed fill material (i.e. concrete, asphalt, gravel, brick, coke, coal, wood fragments) from ground surface to, on average, 6 ft bg. Underlying the mixed fill material, the natural general subsurface stratigraphy consists primarily of sandy clay, silty clay, clayey silt, sand, and gravely sand to a depth of approximately 6-24 ft bg. Saturated soils were identified in zones ranging from ft bg. Below a depth of approximately 6-24 ft bg, soils consist of a lower permeability, unsaturated, silty clay or clay. This unsaturated clay unit has been observed consistently across the parcels and generally extends to approximately 45 ft bg. The clay unit is underlain by a deeper sand and gravel unit that exists down to bedrock, which is encountered between 62 and 80 ft bg. A map depicting subsurface features, including former utilities and foundations, is included as Figure 3. Pleasant Run Crossing South - 19 acres The investigations conducted at Pleasant Run Crossing South included evaluation of surface soils, subsurface soils, and groundwater and resulted in the installation of 72 surface soil borings, 173 subsurface soil borings and 37 wells. A total of 73 surface soil samples, 183 subsurface soil samples, and 189 groundwater samples have been collected. Surface soils were predominantly investigated on the northern portion of the parcel, because the southern portion of the parcel is covered with asphalt, concrete, gravel, or coke. Constituents detected above commercial/industrial Direct Contact criteria in surface soil samples are limited to arsenic, iron, lead and PAHs. PAHs, present in the northeast portion of the parcel, have been delineated with the exception of limited areas near PRC. Arsenic, iron, and lead impacts have been defined in the northwest portion of the parcel (near former Gas Holder #3) and the northeast portion of the parcel along the Pleasant Run Greenway. Constituents detected above IDEM s excavation Direct Contact 4

5 Environmental Conditions Memorandum May 19, 2017 Former Indianapolis Coke Plant criteria in subsurface soil samples are limited to iron and lead. The impacts above the excavation Direct Contact criteria have been defined to three discrete areas at the parcel. Surface soil sample locations are depicted on Figure 4. Subsurface soils above the water-bearing zone contained certain constituents (benzene, xylene, PAHs, mercury and arsenic) above commercial/industrial Direct Contact criteria. Constituents detected above IDEM s excavation Direct Contact criteria in subsurface soil samples are limited to xylene, benzo(a)anthracene, dibenz(a,h)anthracene, naphthalene and mercury. Subsurface soils beneath the saturated zone (underlying silty clay unit) were also sampled as part of investigation activities for the purpose of vertical delineation. Soil samples collected below the saturated zone in the unsaturated silty clay unit did not contain any COCs above commercial/industrial Direct Contact criteria. Based on the investigation data, vertical delineation of soil impacts is considered complete. Subsurface soil sample locations are depicted on Figure 5. Groundwater monitoring data collected between 2010 and 2015 has indicated all constituents were below residential tap screening levels at the property boundaries with the exception of benzene and PAHs at the northwest portion of the parcel. On-site groundwater impacts above residential screening criteria are present for benzene and PAHs. Groundwater impacts have been defined to residential tap screening levels with the exception of limited areas around four wells. Groundwater monitoring well locations are depicted on Figure 6. Intermittent free product was identified in the central portion of the parcel within the soil matrix. Based on data collected to date, no free product has been observed in monitoring wells in this vicinity or downgradient (i.e. not migrating), and dissolved phase concentrations in hydraulically downgradient monitoring wells are below residential tap screening levels, demonstrating that this free product is stable and not migrating toward PRC. Pleasant Run Crossing North - 12 acres The investigations conducted at Southeastern included a total of 234 surface soil borings, 40 subsurface soil borings and 12 monitoring wells. A total of 274 surface soil samples, 104 subsurface soil samples, and 103 groundwater samples have been collected. The constituents detected above the commercial/industrial Direct Contact criteria in surface soil samples are limited to arsenic, lead, mercury (only location only), and five PAHs. These constituents have been identified in three areas of the parcel. Constituents detected above IDEM s excavation Direct Contact exposure criteria are limited to lead (three locations) and mercury (one location). Surface soil sample locations are depicted on Figure 4. The constituents detected above IDEM s commercial/industrial Direct Contact criteria in subsurface soil samples are limited to arsenic, iron, lead, and mercury. Groundwater 5

6 Environmental Conditions Memorandum May 19, 2017 Former Indianapolis Coke Plant data indicates that none of these constituents persist above the IDEM s residential tap screening level in parcel monitoring wells indicating that a migration to groundwater exposure pathway is not present for these constituents. Subsurface soil sample locations are depicted on Figure 5. Groundwater monitoring data collected between 2010 and 2015 has indicated all constituents were below residential tap screening levels at the property boundaries. Only manganese was detected above IDEM s residential tap screening levels in groundwater and was limited to one well. Manganese is a naturally occurring background metal and the detection is not considered to be a result of historic site use. Since IDEM does not have established closure levels for nitrate, the U.S. Environmental Protection Agency (EPA) Maximum Contaminant Level (MCL) was utilized to screen nitrate groundwater data. Nitrate was consistently identified in only one well above the criteria. No potable water wells are located on-site or the adjacent properties and potable water is provided to the area via a municipal supply. Groundwater monitoring well locations are depicted on Figure 6. Pleasant Run Crossing - 56 acres The investigations conducted at Pleasant Run Crossing included evaluation of subsurface soils and groundwater and resulted in the installation of 151 soil borings and 60 wells. A total of 272 subsurface soil samples, and 261 groundwater samples have been collected. Test pits were also installed at the parcel for the purpose of identifying and visually delineating stratigraphy, free product and possible fill areas. Subsurface soils above the water-bearing zone contained PAHs, cyanide and mercury above the commercial/industrial Direct Contact criteria. Constituents detected above IDEM s excavation Direct Contact criteria in subsurface soil samples are limited to benzo(a)pyrene, naphthalene, and mercury. The impacts above the excavation Direct Contact criteria have been defined to one small area at the parcel. Subsurface soil impacts have been defined on-site. Subsurface soils beneath the saturated zone, which consist of unsaturated, stiff silty clay, were also sampled as part of investigation activities for the purpose of vertical delineation. Soil samples collected from the unsaturated silty-clay unit did not contain any COCs above commercial/industrial Direct Contact criteria with the exception of one location where PAHs were detected above the industrial Direct Contact screening level. Based on the investigation data, vertical delineation of soil impacts is considered complete. Subsurface soil sampling locations are depicted on Figure 5. Groundwater monitoring has indicated all constituents have been below the residential tap screening levels at the property boundaries with the exception of cyanide in the northeast corner of the parcel. Based on data collected during investigation activities, impacts above the residential tap screening levels are present on-site for benzene,

7 Environmental Conditions Memorandum May 19, 2017 Former Indianapolis Coke Plant trimethylbenzene, PAHs, dibenzofuran, metals, ammonia and cyanide. Groundwater monitoring well locations are depicted on Figure 6. During investigation activities, intermittent free product was identified in soil borings in the northeast and central portions of the parcel. The free product in the northeast portion of the parcel has been observed in borings and test pits (not in wells). Eighteen test pits were advanced on the northeast corner of the parcel for the purpose of delineating the stratigraphy, the thickness of fill and the extent of free product identified in this area. The test pits revealed coal, fill materials (bricks, wood chips/debris (spent iron oxide), and free product) from 3 feet to over 12 feet in thickness in this area. Stained soils and limited product were also observed in some of the test pits. Intermittent free product was identified in soil borings in the central portion of the parcel in the vicinity of the byproducts manufacturing area. The free product was identified above the unsaturated silty clay layer in discrete intervals. Monitoring wells have been installed around and within the area where free product has been identified. Based on gauging data collected to date, eight monitoring wells have from time to time exhibited free product. The potential for migration of free product is being addressed by using a combination of groundwater recovery trenches (installed beginning in the 1990s) and groundwater recovery wells (installed in 2011). This recovery system is designed to protect PRC and is located adjacent to (along the southeast side of) PRC in the northern portion of the parcel. Water and free product from the recovery trenches and wells are routed to a treatment system. The groundwater recovery and treatment system serves as an engineering control in preventing free product from migrating to PRC. Pleasant Run Creek Multiple phases of sediment investigation activities were conducted within PRC from 2012 through An approximate 4,400 linear foot stretch of PRC was investigated and consisted of an Upstream Reach (approximately 200 feet upstream of the north Site property boundary), an On-Site Reach, and a Downstream Reach (approximately 800 feet downstream of the south Site property boundary). Preliminary investigation activities were conducted in December 2012 and included both qualitative (visual observations) and quantitative (laboratory results) evaluation methods. Based on work conducted in 2012 and 2013, the ecological screening indicated that the potential for ecological risk exists in certain areas of PRC within the On-Site Reach. These impacts are believed to be associated with historic activities and based on the existing data, it is not believed that current surface water runoff or groundwater migration from the other parcels are adversely affecting PRC. Preliminary human health and ecological risk evaluation has been conducted on PRC, and indicated that the risk present for human receptors is within the U.S. EPA acceptable 7

8 Environmental Conditions Memorandum May 19, 2017 Former Indianapolis Coke Plant risk range for carcinogenic compounds and below the hazard index for non-carcinogenic compounds. Citizens met with IDEM on October 1, 2014, to discuss the findings regarding PRC and IDEM agreed the identified impacts within PRC are not presenting an imminent threat or acute risk to human health and the environment. Citizens identified limited areas within the On-Site Reach of PRC of potential ecological risk based upon data and visual observations and performed additional investigation activities in 2016 to delineate these areas. Citizens will be performing response actions in PRC during 2017 to address these areas within PRC, through excavation and capping of impacted sediments. Deep Groundwater In 2015, IDEM approved an investigation plan to install seven monitoring wells to the depth of bedrock (approximately ft bg depending on where you are at the Site), and collect soil and groundwater samples. The investigation resulted in the installation of 7 soil borings and 7 wells. A total of 22 subsurface soil samples and 28 groundwater samples have been collected to date. The investigation focused on areas down-gradient of known historical preferential pathways (such as previous test wells and water wells) and known source areas. Analytical results from the sampling revealed no COCs of significance and provided no evidence that COC migration from the shallow saturated zone to the deep is occurring. Based upon the information collected from the deep groundwater investigation at the Site, the following conclusions were presented to the IDEM: The limited deep soil impacts observed during the investigation indicate that Site COCs are not vertically migrating through the lower permeability unsaturated clay zone and adversely impacting the deeper saturated unit. The following characteristics of the silty clay inhibit vertical contaminant migration: o Sufficient thickness (up to 40-ft); o Laterally continuous; o Low hydraulic conductivity; and, o Low permeability. The lack of consistent or elevated COC concentrations in the deep groundwater, when considering the operational history of the Site and the magnitude of concentrations in the shallow groundwater, clearly demonstrate that no material migration of COCs from the shallow groundwater to the deep groundwater is occurring. COCs with higher potential to migrate with groundwater flow (i.e. VOCs) present in several shallow monitoring wells have not been detected in the deep wells. The detected concentrations of arsenic and manganese in the deep wells at the Prospect Facility are consistent with naturally occurring groundwater chemistry 8

9 Environmental Conditions Memorandum May 19, 2017 Former Indianapolis Coke Plant within the White River basin and are not considered to be a result of historic operations. Ammonia and cyanide detections in deep wells were not detected above residential screening levels indicating there is no risk associated with these COCs. There is not a complete exposure pathway to potential receptors. The deep groundwater unit has been satisfactorily characterized. NON-VRP PARCELS The outlying parcels that have not been addressed through the VRP process have nonetheless been investigated following IDEM protocols to better understand environmental conditions present. Twin Aire 28 acres Twin Aire is located at 3000 East Pleasant Run Parkway North Drive in Indianapolis. According to City Directories and aerial photos, the property was vacant until 1954 when it became a drive-in theater. The property continued to operate as a drive in theatre until approximately Citizens purchased the Site in 1994 and utilized the southern portion of the Site for weighing and staging coke produced at their Prospect facility. A fire burned the former movie screen down in 1995 and the remaining buildings were demolished in the mid-1990s. Citizens never performed manufacturing or production operations on the Twin Aire parcel. The investigations conducted at Twin Aire included evaluation of surface soils, subsurface soils and groundwater and resulted in the installation of 15 soil borings and 3 groundwater wells. A total of 5 surface, 13 subsurface soil samples, and 6 groundwater samples have been collected and analyzed. A figure depicting investigation locations is included as Figure 7. Surface soils were submitted for asbestos analysis related to the former drive-in movie theater screen, which contained asbestos. No detectable concentrations of asbestos were reported. Subsurface soil samples were submitted for VOCs, SVOCs, and RCRA Metals analysis. Soil sample concentrations were all reported below RCG Residential direct contact screening criteria. Groundwater samples were collected twice from each well on-site and analyzed for VOCs, SVOCs, and RCRA Metals. Monitoring well sample concentrations were all reported below RCG Residential screening criteria. 9

10 Environmental Conditions Memorandum May 19, 2017 Former Indianapolis Coke Plant Prospect Place West 7.5 acres This parcel is located at 2925 Prospect Avenue in Indianapolis. Citizens acquired the property in 1999 and 2000 through the purchase of various parcels from previous owners. Prior to Citizens purchasing the property, it was utilized as a salvage yard for automobiles. Citizens utilized the parcel for bulk storage of off-spec coke. No manufacturing or production operations were ever conducted on the Prospect Place West parcel. The investigations conducted on Prospect Place West included evaluation of surface soils, subsurface soils and groundwater and resulted in the installation of 24 soil borings and 10 wells. A total of 4 surface, 48 subsurface soil samples, and 36 groundwater samples have been collected. A figure depicting investigation locations is included as Figure 8. Surface soil samples were submitted for the full suite of MGP COCs. With the exception of 1 sample, (SYSB-1), no COCs were detected above Residential criteria. SYSB-1 reported benzo(a)pyrene and arsenic above residential criteria, but below commercial/industrial screening criteria. Subsurface soil samples were submitted for the full suite of MGP COCs. Three soil samples reported PAHs above residential screening criteria but below commercial/industrial screening criteria. Thirteen soil samples reported arsenic concentrations above residential screening criteria, with 2 of these samples above commercial/industrial screening criteria. Two samples contained manganese above residential criteria, but below commercial/industrial screening criteria. One sample had lead above commercial/industrial screening criteria. Groundwater samples were submitted for the full suite of MGP COCs. Samples were collected four times from 8 wells and twice from the remaining two wells. Monitoring well sample concentrations were all reported below RCG Residential screening criteria with the exception of samples from SYMW-6 and SYMW-8, which had residential exceedances for VOCs and PAHs. During investigation activities, intermittent free product was identified in soil borings in the north-central portion of the parcel. The free product was identified in a number of borings. SUMMARY AND CONCLUSIONS Based on the work completed to date at the Prospect Facility, surface soil, subsurface soil, groundwater (shallow and deep), and sediment have largely been delineated to land use appropriate criteria. Additional investigation activities are currently being performed with the IDEM s input and oversight to address remaining data gaps. 10

11 Environmental Conditions Memorandum May 19, 2017 Former Indianapolis Coke Plant The anticipated remedial strategy for the properties will be risk-based and focus on exposure pathway elimination and control by utilizing a combination of active remediation technologies and institutional controls (i.e. ERC). The following general provisions, which are anticipated to be recorded in an ERC, would address the majority of the potential risks associated with the known environmental impacts. Groundwater cannot be consumed or used for any purpose. Because soil at the property will contain residual constituents of concern, any future soil excavation or disturbance will have to be performed pursuant to a health and safety plan and a soil management plan that comply with all applicable laws. The potential for vapor intrusion will need to be evaluated when planning the construction of new structures. Citizens is currently preparing a Site-Wide RWP that will address Pleasant Run Crossing (including PRC), Pleasant Run Crossing North, Pleasant Run Crossing South, and Prospect Place East that will be submitted in A link to the IDEM s Virtual File Cabinet, which includes documents submitted to the IDEM related to the VRP Parcels is: Potential remediation requirements at Prospect Place West are currently unknown. Citizens is planning on installing infrastructure on this parcel to support their Deep Rock Tunnel Connector Project. Twin Aire does not, based on data collected to date, require any remediation to move forward with redevelopment. 11

12 FIGURES

13 PLEASANT RUN CROSSING Pleasant Run Crossing North 12 Acres 0 100' 200' 400' Twin Aire 28 Acres Pleasant Run Crossing 56 Acres Pleasant Run Crossing South 19 Acres Prospect Place West 7.5 Acres Prospect Place East 22 Acres 1302 N. MERIDIAN ST., STE. 300 INDIANAPOLIS, INDIANA (317) (317) FAX Citizens Energy Group 2950 Prospect Street Indianapolis, Indiana Prospect Street Facility - Parcel Boundaries Aerial Image: AccuAir Survey - December 27, 2016 Aerial Image: Google Earth - October 17, 2015 PROJECT No.: JR DRAWN BY: BA FILENAME: I:\2017\Projects\JR \Figures\ Parcel Names.dwg MODIFIED BY: BO SCALE: 1" = 400' DATE: 05/16/2017 FIGURE: 1

14 LEGEND = Site Boundary = Soil Boring Location = Surface Water Location = Monitoring Well Location 1302 N. MERIDIAN ST., STE. 300 INDIANAPOLIS, INDIANA (317) (317) FAX CITIZENS ENERGY GROUP - COKE PLANT 2950 PROSPECT STREET, INDIANAPOLIS, INDIANA Prospect Place East Investigation Locations PROJECT No.: JR DRAWN BY: MGJ FILENAME: I:/2016/Projects/JR0576/Figures/ Base.dwg MODIFIED BY: SCALE: BO As shown DATE: 05/16/2017 FIGURE: 2

15 LEGEND Black Red Green Blue Teal Magenta = Concrete Structure = UG Electrical Duct = Sanitary & Flumeway = Domestic Water Piping = Natural Gas Piping = Process Gas Piping 1302 N. MERIDIAN ST., STE. 300 INDIANAPOLIS, INDIANA (317) (317) FAX Disclaimer: This drawing is for informational purposes only. Accuracy and completeness of the drawing is not guaranteed. The information presented herein should not be used for the basis of any new building designs. CITIZENS ENERGY GROUP - COKE PLANT 2950 PROSPECT STREET, INDIANAPOLIS, INDIANA Pleasant Run Crossing Subsurface Features PROJECT No.: JR DRAWN BY: MGJ FILENAME: DATE: I:/2016/Projects/JR0576/Figures/... 05/16/ Base.dwg MODIFIED BY: SCALE: FIGURE: BO As shown 3

16 LEGEND = Site Boundary = Soil Boring Location = Surface Soil Boring Location 1302 N. MERIDIAN ST., STE. 300 INDIANAPOLIS, INDIANA (317) (317) FAX CITIZENS ENERGY GROUP - COKE PLANT 2950 PROSPECT STREET, INDIANAPOLIS, INDIANA Pleasant Run Crossing Surface Soil Investigation Locations PROJECT No.: JR DRAWN BY: MGJ FILENAME: I:/2016/Projects/JR0576/Figures/ Base.dwg MODIFIED BY: SCALE: BO As shown DATE: 05/16/2017 FIGURE: 4

17 DW-6 DW-5 DW-4 DW-7 DW-1 LEGEND = Site Boundary = Soil Boring Location DW-3 = Visual Delineation only Location = Shallow Monitoring Well Location DW-2 = Deep Monitoring Well Location 1302 N. MERIDIAN ST., STE. 300 (317) INDIANAPOLIS, INDIANA (317) FAX CITIZENS ENERGY GROUP - COKE PLANT 2950 PROSPECT STREET, INDIANAPOLIS, INDIANA Pleasant Run Crossing Subsurface Soil Investigation Locations PROJECT No.: JR DRAWN BY: MGJ FILENAME: I:/2016/Projects/JR0576/Figures/ Base.dwg MODIFIED BY: SCALE: BO As shown DATE: 05/16/2017 FIGURE: 5

18 DW-6 DW-5 DW-4 DW-7 DW-1 LEGEND DW-3 = Site Boundary = Shallow Monitoring Well Location DW-2 = Deep Monitoring Well Location 1302 N. MERIDIAN ST., STE. 300 (317) INDIANAPOLIS, INDIANA (317) FAX CITIZENS ENERGY GROUP - COKE PLANT 2950 PROSPECT STREET, INDIANAPOLIS, INDIANA Pleasant Run Crossing Groundwater Monitoring Well Network PROJECT No.: JR DRAWN BY: MGJ FILENAME: I:/2016/Projects/JR0576/Figures/ Base.dwg MODIFIED BY: SCALE: BO As shown DATE: 05/16/2017 FIGURE: 6

19 LEGEND = Site Boundary = Soil Boring Location = Monitoring Well Location 1302 N. MERIDIAN ST., STE. 300 INDIANAPOLIS, INDIANA (317) (317) FAX CITIZENS ENERGY GROUP - COKE PLANT 2950 PROSPECT STREET, INDIANAPOLIS, INDIANA Twin Aire Investigation Locations PROJECT No.: JR DRAWN BY: MGJ FILENAME: I:/2016/Projects/JR0576/Figures/ Base.dwg MODIFIED BY: SCALE: BO As shown DATE: 05/16/2017 FIGURE: 7

20 LEGEND = Site Boundary = Soil Boring Location = Monitoring Well Location 1302 N. MERIDIAN ST., STE. 300 INDIANAPOLIS, INDIANA (317) (317) FAX CITIZENS ENERGY GROUP - COKE PLANT 2950 PROSPECT STREET, INDIANAPOLIS, INDIANA Prospect Place West Investigation Locations PROJECT No.: JR DRAWN BY: MGJ FILENAME: I:/2016/Projects/JR0576/Figures/ Base.dwg MODIFIED BY: SCALE: BO As shown DATE: 05/16/2017 FIGURE: 8