\\APHRODITE\PROJ\HONEYWELLINC\DUNDALKMARINETERMINAL\MAPFILES\CHROMIUM_TRANSPORT_STUDY\Figure -1-7 Hex Chromium.mxd DMT-2M 1 Well Not Associated with COPR Well Associated with COPR Eh (mv) CrO DMT-26S 5 Cr CrO 3+ 2 R DMT-6M DMT-82D DMT-7S DMT-19S DMT-59S DMT-5US 2+ 3-5 Groundwater Measurements DMT-21S DMT-2S 2 6 8 1 12 1 BR OE ph NI NG DMT-78M HW DMT-28S Groundwater Assessment Data DMT-1S Y EAC-2M DMT-27S DMT-35M EAC-2S DMT-75US EAC-M DMT-3S DMT-3M 16 DMT-29S EAC-S EA-13M 12 DMT-6US DMT-2S 18 DMT-53US EA-15M DMT-22S DMT-S DMT-2S 11 DMT-37M DMT-5S DMT-23S DMT-3S DMT-1S DMT-25S DMT-9S EA-1S EAC-3M DMT-31S DMT-5US DMT-16S DMT-32S DMT-67US DMT-15S DMT-13S EAC-3S DMT-7US TPZ-27A TPZ-27B DMT-7US TPZ-6 EA-6M EA-5M TPZ- DMT-36M EA-6S DMT-71US EA-11M TPZ-5 161 DMT-38M EA-1M DMT-83D 15 DMT-2S DMT-7S DMT-8S 12 1 DMT-55S 171 DMT-1M DMT-6S DMT-9US DMT-1S DMT-S DMT-52US 1 13 DMT-65US DMT-8S DMT-51US EA-15S DMT-17S G- DMT-33S DMT-3S 11 9 G-2 17 EA-8S TPZ-38 TPZ-36 DMT-S DMT-18S DMT-79M EA-8M TPZ-33 DMT-1S DMT-72US D-1 E-1 DMT-12S DMT-11S C-1 172 J-1 D-2 162 DMT-56S E-2 EAC-1M DMT-8M TPZ-29 TPZ-28 EAC-1S 151 D-3 C-2 DMT-57S J-2 DMT-63S E- DMT-58S F-2 C-3 TPZ-9 TPZ-8 DMT-73US DMT-5S DMT-39S A-1 J-3 B-1 J- DMT-77M TPZ-3B TPZ-3A DMT-81D DMT-62S DMT-61S EA-7M B-2 D- A-2 B3 Legend Hexavalent Chromium (ug/l) Approximate COPR Extent < or = 1 Areas > 1-1 COPR Extent > 1-1, > 1, - 1, EA - 11S Shallow Monitoring Well DMT - 9US Upper Sand Well > 1, EA - 11M M-Series Well Shoreline/Bulkhead EA - 11D Deep Monitoring Well Railroad Centerline Curb Figure -13 - Chromium VI Concentrations in Groundwater and Pore Water Dundalk Marine Terminal Baltimore, Maryland Note: Groundwater samples were collected from 26 to 29 and the concentrations depicted on the map represent the most recent representative sample result from each location. The pore water results represent data collected during the th Quarter 28 sampling round. 15 3 6 Feet
Surface Cover and Type I Fill Type II Fill HB COPR Notes: 1) Horizontal scale for cross-section is distorted due to variability in section orientation. Refer to scale on plan view to determine the actual distance between boring locations. 2) Vertical Exaggeration = 2X GB COPR Alluvial Sand Upper Silt Lower Silt Potomac Group SECTION MAP Figure -1 Dissolved Chromium and Chromium VI Results in Groundwater (Section 1)
SECTION MAP Surface Cover and Type I Fill Type II Fill HB COPR GB COPR Alluvial Sand Upper Silt Lower Silt Potomac Group Notes: 1) Horizontal scale for cross-section is distorted due to variability in section orientation. Refer to scale on plan view to determine the actual distance between boring locations. 2) Vertical Exaggeration = 2X Figure -15 Dissolved Chromium and Chromium VI Results in Groundwater (Section 2)
TPZ-3 DMT-18S DMT-29S DMT-3S (32) (8) (371) DMT-2S EA-15S (171) DMT-22S (23) TPZ-7 P- DMT-17S DMT-1S EA-16S DMT-2S DMT-23S DMT-3S (2J) EA-12S DMT-S EA-1S EA-1S DMT-31S DMT-32S DMT-15S Legend Shallow Aquifer Monitoring Well (2) Dissolved Cr-VI Concentration (µg/l) Not Detected above Quantitation Limit Particle Pathline with 5-YearTravel Time Tic Mark Approximate Extent of COPR Fill Note: The estimated distance traveled by a flowing groundwater particle over a 5-year period is represented by the distance between the square tic marks spaced along the pathlines. 1 2 3 Scale in Feet Figure -16 Simulated Backward Particle Tracks Leading to Selected Shallow Monitoring Wells CH2M HILL
a) Tidal study hydrograph for well DMT-15S, which is located immediately inboard of the sheet pile bulkhead in Area 12. The tidal response is negligible where the shallow fill unit is bounded by the sheet pile bulkhead. b) Tidal study hydrograph for well DMT-58S, which is located on the southeast corner of Area 151 adjacent to the Patapsco River. Tidal response is observed where the shallow fill unit is not bounded by the sheet pile bulkhead.. Figure -17 Tidal Response in the Shallow Fill Unit