PHASE III ESA, HHERA AND RAP, NORTHWEST POINT, LABRADOR. Appendix 4a. Site Drawings. East Bulk Fuel Storage Site

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1 PHASE III ESA, HHERA AND RAP, NORTHWEST POINT, LABRADOR Appeix 4a Site Drawings East Bulk Fuel Storage Site

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5 PHASE III ESA, HHERA AND RAP, NORTHWEST POINT, LABRADOR Appeix 4b Site Photos East Bulk Fuel Storage Site

6 Site Photographs East Bulk Fuel Storage Site Photo View of 09TP6 a 09TP7 Photo View of 09MW

7 Site Photographs East Bulk Fuel Storage Site Photo 3 View of 09MW5 Photo 4 View of 09TP

8 PHASE III ESA, HHERA AND RAP, NORTHWEST POINT, LABRADOR Appeix 4c Sample Coordinates East Bulk Fuel Storage Site

9 Sample Coordinates East Bulk Fuel Storage Site Phase III ESA, HHERA a RAP Former U.S Military Facility, Northwest Point, NL Stantec Consulting Ltd. Project No Sample ID Coordinates (NAD7) Easting Northing TEST PITS 09TP TP TP TP TP TP MONITOR WELLS 09MW MW MW SURFACE SOIL 09SS SS SS SS SS SEDIMENT 09SED VEGETATION 09VEG VEG

10 PHASE III ESA, HHERA AND RAP, NORTHWEST POINT, LABRADOR Appeix 4d Test Pit Records a Monitor Well Records East Bulk Fuel Storage Site

11 TEST PIT RECORD CLIENT NL Department of Environment a Conservation PROJECT Phase III ESA, HHRA & ERA, Former US Military Facility LOCATION Northwest Point, NL DATES (mmddyy): DUG 8709 WATER LEVEL 0.9m 8709 TEST PIT No. PROJECT No. DATUM 09TP SAMPLES CHEMICAL ANALYSIS (ppm) DEPTH (m) ELEVATION (m) DESCRIPTION STRATA PLOT WATER LEVEL TYPE NUMBER HYDROCARBON ODOUR OTHER TESTS PID READINGS (ppm) TPH BENZENE TOLUENE ETHYLBENZENE XYLENES 0 Compact, brown, SAND (SP) BS.0 BS E of Test Pit Rapid grouwater seepage observed at 0.9 m depth; sheen on grouwater. Bedrock not encountered STANTEC ENVIRONMENTAL TEST PIT 8/5/ :05:54 AM

12 TEST PIT RECORD CLIENT NL Department of Environment a Conservation PROJECT Phase III ESA, HHRA & ERA, Former US Military Facility LOCATION Northwest Point, NL DATES (mmddyy): DUG 8709 WATER LEVEL 0.6m 8709 TEST PIT No. PROJECT No. DATUM 09TP SAMPLES CHEMICAL ANALYSIS (ppm) DEPTH (m) ELEVATION (m) DESCRIPTION STRATA PLOT WATER LEVEL TYPE NUMBER HYDROCARBON ODOUR OTHER TESTS PID READINGS (ppm) TPH BENZENE TOLUENE ETHYLBENZENE XYLENES 0 Compact, brown, SAND (SP) BS 55.3 BS E of Test Pit Rapid grouwater seepage observed at 0.6 m depth; sheen on grouwater. Bedrock not encountered STANTEC ENVIRONMENTAL TEST PIT 8/5/ :05:54 AM

13 TEST PIT RECORD CLIENT NL Department of Environment a Conservation PROJECT Phase III ESA, HHRA & ERA, Former US Military Facility LOCATION Northwest Point, NL DATES (mmddyy): DUG 8709 WATER LEVEL 0.8m 8709 TEST PIT No. PROJECT No. DATUM 09TP SAMPLES CHEMICAL ANALYSIS (ppm) DEPTH (m) ELEVATION (m) DESCRIPTION STRATA PLOT WATER LEVEL TYPE NUMBER HYDROCARBON ODOUR OTHER TESTS PID READINGS (ppm) TPH BENZENE TOLUENE ETHYLBENZENE XYLENES 0 Compact, brown, SAND (SP) BS 3 BS E of Test Pit Rapid grouwater seepage observed at 0.8 m depth; sheen on grouwater. Bedrock not encountered STANTEC ENVIRONMENTAL TEST PIT 8/5/ :05:54 AM

14 TEST PIT RECORD CLIENT NL Department of Environment a Conservation PROJECT Phase III ESA, HHRA & ERA, Former US Military Facility LOCATION Northwest Point, NL DATES (mmddyy): DUG 8709 WATER LEVEL 0.8m 8709 TEST PIT No. PROJECT No. DATUM 09TP SAMPLES CHEMICAL ANALYSIS (ppm) DEPTH (m) ELEVATION (m) DESCRIPTION STRATA PLOT WATER LEVEL TYPE NUMBER HYDROCARBON ODOUR OTHER TESTS PID READINGS (ppm) TPH BENZENE TOLUENE ETHYLBENZENE XYLENES 0 Compact, brown, SAND (SP) BS 38 BS E of Test Pit Rapid grouwater seepage observed at 0.8 m depth. Bedrock not encountered STANTEC ENVIRONMENTAL TEST PIT 8/5/ :05:55 AM

15 TEST PIT RECORD CLIENT NL Department of Environment a Conservation PROJECT Phase III ESA, HHRA & ERA, Former US Military Facility LOCATION Northwest Point, NL DATES (mmddyy): DUG 8709 WATER LEVEL m 8709 TEST PIT No. PROJECT No. DATUM 09TP SAMPLES CHEMICAL ANALYSIS (ppm) DEPTH (m) ELEVATION (m) DESCRIPTION STRATA PLOT WATER LEVEL TYPE NUMBER HYDROCARBON ODOUR OTHER TESTS PID READINGS (ppm) TPH BENZENE TOLUENE ETHYLBENZENE XYLENES 0 Compact, brown, SAND (SP) BS 67 BS E of Test Pit Rapid grouwater seepage observed at.0 m depth. Bedrock not encountered STANTEC ENVIRONMENTAL TEST PIT 8/5/ :05:55 AM

16 TEST PIT RECORD CLIENT NL Department of Environment a Conservation PROJECT Phase III ESA, HHRA & ERA, Former US Military Facility LOCATION Northwest Point, NL DATES (mmddyy): DUG 8609 WATER LEVEL 0.9m 8609 TEST PIT No. PROJECT No. DATUM 09TP SAMPLES CHEMICAL ANALYSIS (ppm) DEPTH (m) ELEVATION (m) DESCRIPTION STRATA PLOT WATER LEVEL TYPE NUMBER HYDROCARBON ODOUR OTHER TESTS PID READINGS (ppm) TPH BENZENE TOLUENE ETHYLBENZENE XYLENES 0 Loose to compact, brown, SAND (SP) BS BS E of Test Pit Rapid grouwater seepage observed at 0.9 m depth. Bedrock not encountered STANTEC ENVIRONMENTAL TEST PIT 8/5/ :05:55 AM

17 MONITOR WELL RECORD CLIENT NL Department of Enviroment a Conservation PROJECT Phase III ESA, HHRA & ERA, Former US Military Facility LOCATION Northwest Point, NL DATES (mmddyy): BORING 8809 WATER LEVEL.m 8809 BOREHOLE No. 09MW5 PAGE of PROJECT No DRILLING METHOD Auger SIZE 00mm HS DATUM DEPTH (m) 0 ELEVATION (m) DESCRIPTION Brown, SAND (SP) STRATA PLOT WATER LEVEL TYPE SS SAMPLES NUMBER RECOVERY mm 305 NVALUE OR RQD % 4 HYDROCARBON ODOUR APPARENT MOISTURE CONTENT PID (ppm) 87.3 TPH (ppm) WELL CONSTRUCTION DETAILS 0.6 m STICK UP CAST IRON WELL HEAD BENTONITE 3 Grey, silty CLAY (CLML) Brown, SAND (SP) Grey, silty CLAY (CLML) Brown, SAND (SP) Grey, silty CLAY (CLML) Brown, SAND (SP) E of Borehole SS SS SS SS S S S S mm DIAMETER No. 0 SLOT PVC SCREEN IN No. SILICA SAND PACK END CAP STANTEC MONITOR WELL 8/5/ :0:59 AM

18 MONITOR WELL RECORD CLIENT NL Department of Enviroment a Conservation PROJECT Phase III ESA, HHRA & ERA, Former US Military Facility LOCATION Northwest Point, NL DATES (mmddyy): BORING 8809 WATER LEVEL.m 8809 BOREHOLE No. 09MW6 PAGE of PROJECT No DRILLING METHOD Auger SIZE 00mm HS DATUM DEPTH (m) 0 ELEVATION (m) DESCRIPTION Black, SAND (SP) layered with dark brown, SAND (SP) STRATA PLOT WATER LEVEL TYPE SS SAMPLES NUMBER RECOVERY mm 405 NVALUE OR RQD % 6 HYDROCARBON ODOUR APPARENT MOISTURE CONTENT PID (ppm) 34 TPH (ppm) WELL CONSTRUCTION DETAILS 0.6 m STICK UP CAST IRON WELL HEAD BENTONITE Brown, SAND (SP); some cobbles Black, SAND (SP) layered with dark brown, SAND (SP) SS SS SS S S mm DIAMETER No. 0 SLOT PVC SCREEN IN No. SILICA SAND PACK 3 E of Borehole END CAP STANTEC MONITOR WELL 8/5/ :0:59 AM

19 MONITOR WELL RECORD CLIENT NL Department of Enviroment a Conservation PROJECT Phase III ESA, HHRA & ERA, Former US Military Facility LOCATION Northwest Point, NL DATES (mmddyy): BORING 8809 WATER LEVEL.m 8809 BOREHOLE No. 09MW7 PAGE of PROJECT No DRILLING METHOD Auger SIZE 00mm HS DATUM DEPTH (m) 0 ELEVATION (m) DESCRIPTION Dark brown, SAND (SP) STRATA PLOT WATER LEVEL TYPE SS SAMPLES NUMBER RECOVERY mm 455 NVALUE OR RQD % 6 HYDROCARBON ODOUR APPARENT MOISTURE CONTENT PID (ppm) 6 TPH (ppm) WELL CONSTRUCTION DETAILS 0.9 m STICK UP CAST IRON WELL HEAD BENTONITE Grey, silty CLAY (CLML) Grey, SILT (ML) Brown, SAND (SP); some cobbles Dark grey, SILT (ML) SS SS SS mm DIAMETER No. 0 SLOT PVC SCREEN IN No. SILICA SAND PACK 3 E of Borehole END CAP STANTEC MONITOR WELL 8/5/ :0:59 AM

20 PHASE III ESA, HHERA AND RAP, NORTHWEST POINT, LABRADOR Appeix 4e Laboratory Analytical Results Summary Tables East Bulk Fuel Storage Site

21 Table 4. Results of Laboratory Analysis of TPH/BTEX in Soil East Bulk Fuel Storage Site Phase III ESA, HHERA a RAP Former U.S Military Facility, Northwest Point, NL Stantec Consulting Ltd. Project No Sample Location Sample Depth (m) Units Tier I RBSLs Benzene Toluene Ethylbenzene Xylenes TPH Purgeable (<C 0 ) TPH Extractable (C 0 C 3 ) C 6 C 0 (Gas Range) C 0 C (Fuel Range) C C 3 (Lube Range) Modified TPH Tier I Resemblance mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg Sampling (AGRA) EFTP 0.5 <4.0 <4.0 <4.0 < ,300 3,387 D EFTP4 0.8 <0.00 <0.00 <0.00 <0.004 <0.0 <0. <0.0 EFTP5 0.5 <0.00 <0.00 <0.00 <0.004 <0.0 <0. <0.0 EFTP6 0.5 <0.00 <0.00 <0.00 <0.004 <0.0 <0. <0.0 EFTP7.6 <0.00 <0.00 <0.00 < < NRD/G EFTP8.3 <0.00 < D EFTP D PTP9.5 <0.00 <0.00 <0.00 <0.004 < NRD/G PTP <0.400 <0.400 < ,00,63 D PTP <0.40 <0.40 < ,370 9,498 D MDL Sampling (Stantec) 09TP6BS 0.7. <0.03 <0.03 <0.03 <0.05 <3 6 <5 6 WFO 09TP7BS <0.03 <0.03 <0.03 < , ,00 FO 09TP8BS 0.6. <0.03 <0.03 <0.03 < , ,500 FO 09TP9BS <0.03 <0.03 <0.03 <0.05 7,000 60,000 FO 09TP9BS LabDup <0.03 <0.03 <0.03 < , TP30BS 0.7. <0.03 <0.03 <0.03 < ,000 0,000 FO 09SS <0.03 <0.03 <0.03 <0.05 <3,300 7,300 WFO 09SS <0.03 <0.03 <0.03 <0.05 <3 8, ,000 FO RDL MW6SS3..8 <0.03 <0.03 <0.03 < , ,000 FO RDL MW7SS3..8 <0.03 < , ,000 FO RDL Notes: = Partnership in RBCA (RiskBased Corrective Action) Implementation (PIRI) Tier I Risk Based Screening Levels (RBSLs) for a residential site with nonpotable grouwater a coarse grained soil, fuel oil impacts (September, 003) = Modified TPH Tier I does not include BTEX MDL = Method detection limit; RDL = Reportable Detection Limit for routine analysis Labdup = Laboratory duplicate sample < # = Not detected above MDL/RDL noted "" = Iicates value is not available or does not apply D = Diesel; NRD/G = No resemblance to diesel or gasoline; FO = Fuel oil; WFO = Weathered fuel oil Shaded = Value exceeds generic guideline for a residential site, nonpotable grouwater, coarse grained soil a fuel oil impacts

22 Table 4. Results of Laboratory Analysis of Metals in Soil East Bulk Fuel Storage Site Phase III ESA, HHERA a RAP Former U.S Military Facility, Northwest Point, NL Stantec Consulting Ltd. Project No Parameters RDL Units Criteria 009 Sampling (Stantec) 09SS5 09SS6 09SS7 09SS8 09SS9 Sample Depth (m) Aluminum 0 mg/kg,00,000,600,800,00 Antimony mg/kg 0 < < < < < Arsenic mg/kg < < < < < Barium 5 mg/kg Beryllium mg/kg 4 < < < < < Bismuth mg/kg < < < < < Boron 5 mg/kg <5 <5 <5 <5 <5 Cadmium 0.3 mg/kg 0 <0.3 <0.3 <0.3 <0.3 <0.3 Chromium mg/kg Cobalt mg/kg 50 < < Copper mg/kg < Iron 50 mg/kg 3,300 3,000 5,00,000 3,800 Lead 0.5 mg/kg Lithium mg/kg 3 < Manganese mg/kg Mercury 0. mg/kg 6.6 <0. <0. <0. <0. <0. Molybdenum mg/kg 0 < < < < < Nickel mg/kg 50 3 < < Rubidium mg/kg 3 3 < 3 Selenium mg/kg < < < < < Silver 0.5 mg/kg 0 <0.5 <0.5 <0.5 <0.5 <0.5 Strontium 5 mg/kg <5 <5 <5 <5 <5 Thallium 0. mg/kg 0. <0. <0. <0. <0. Tin mg/kg < < < < < Uranium 0. mg/kg Vanadium mg/kg Zinc 5 mg/kg Notes: = CCME Canadian Soil Quality Guidelines for Protection of Environmental a Human Health at a Residential/Parkla site (007) RDL = Reportable Detection Limit for routine analysis < # = Not detected above RDL noted "" = No applicable guideline

23 Table 4.3 Results of Laboratory Analysis of PAHs in Soil East Bulk Fuel Storage Site Phase III ESA, HHERA a RAP Former U.S Military Facility, Northwest Point, NL Stantec Consulting Ltd. Project No Parameters RDL Units Criteria,3 Criteria,3 999 Sampling (AGRA) 009 Sampling (Stantec) EFTP9 MDL 09SS6 RDL 09SS7 RDL 09SS8 RDL Sample Depth (m) Noncarcinogenic PAHs Methylnaphthalene 0.05 mg/kg < <0.() 0. < Methylnaphthalene 0.05 mg/kg 0.0() 0.0 <0.06() 0.06 < Acenaphthene 0.05 mg/kg < <0.() 0. <0.03() 0.03 Acenaphthylene 0.05 mg/kg < Anthracene 0.05 mg/kg.5 < <0.03() 0.03 <0.07() 0.07 < Fluoranthene 0.05 mg/kg 50 < < < Fluorene 0.05 mg/kg < <0.0() 0.0 <0.() 0. < Naphthalene 0.05 mg/kg < < < Perylene 0.05 mg/kg < < < < Phenanthrene 0.05 mg/kg < < Pyrene 0.05 mg/kg < Carcinogenic PAHs Benzo(a)anthracene 0.05 mg/kg < < < < Benzo(a)pyrene 0.05 mg/kg 0 < < < < Benzo(b)fluoranthene 0.05 mg/kg < < < Benzo(g,h,i)perylene 0.05 mg/kg < < < Benzo(k)fluoranthene 0.05 mg/kg < < < Chrysene 0.05 mg/kg < < Ieno(,,3c,d) pyrene 0.05 mg/kg < < < Dibenz(a,h,)anthracene 0.05 mg/kg < < < < Benzo(a)pyrene TPE Notes: = CCME Canadian Soil Quality Guidelines for the Protection of Environmental Health at a Residential/Parkla Site (008) = CCME Canadian Soil Quality Guidelines for Protection of Human Health for a Residential Site (Direct Soil Contact) (008) 3 = As per CCME recommeations, soil samples are compared against the SQG for the protection of human health a environmental health separately 4 = Carcinogenic PAHs Assessed as Benzo(a)pyrene Total Potency Equivalent (TPE) MDL = Method Detection Limit; RDL = Reportable Detection Limit for routine analysis < # = Not detected above MDL/RDL noted "" = No applicable guideline or does not apply () = Elevated RDL due to sample dilution

24 Table 4.4 Results of Laboratory Analysis of TPH/BTEX in Grouwater East Bulk Fuel Storage Site Phase III ESA, HHERA a RAP Former U.S Military Facility, Northwest Point, NL Stantec Consulting Ltd. Project No Sample Location Benzene Toluene Ethylbenzene Xylenes TPH Purgeable (<C 0 ) TPH Extractable (C 0 C 3 ) C 6 C 0 (Gas Range) C 0 C (Fuel Range) C C 3 (Lube Range) Modified TPH Tier I Resemblance Units mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l Tier I RBSLs /0/0 999 Sampling (AGRA) EFTP3 <0.5 <0.5 <0.55 <.5 50,30,380 D MDL Sampling (Stantec) 09MW5 <0.00 <0.00 <0.00 < WFO 09MW7 <0.00 <0.00 <0.00 < WFO RDL Notes: = Partnership in RBCA (RiskBased Corrective Action) Implementation (PIRI) Tier I Risk Based Screening Levels (RBSLs) for a residential site with nonpotable grouwater a coarse grained soil, fuel oil impacts (September, 003) = Modified TPH Tier I does not include BTEX MDL = Method Detection Limit; RDL = Reportable Detection Limit for routine analysis < # = Not detected above MDL/RDL noted "" = iicates value is not available or does not apply D = Diesel; WFO= Weathered Fuel Oil Shaded = Value exceeds applicable criteria

25 Table 4.5 Results of Laboratory Analysis of Petroleum Hydrocarbon Fractionation in Grouwater East Bulk Fuel Storage Site Phase III ESA, HHERA a RAP Former U.S Military Facility, Northwest Point, NL Stantec Consulting Ltd. Project No Parameter RDL Units Criteria 009 Sampling (Stantec) 09MW6 Benzene 0.0 mg/l <0.0 Toluene 0.0 mg/l 0 <0.0 Ethylbenzene 0.0 mg/l 0 <0.0 Xylene (Total) 0.0 mg/l 0 <0.0 Aliphatic >C6C8 0. mg/l 0. Aliphatic >C8C0 0. mg/l <0. >C8C0 Aromatics (EX) 0. mg/l 0. Aliphatic >C0C 0.5 mg/l 37 Aliphatic >CC6 3 mg/l 00 Aliphatic >C6C 3 mg/l 30 Aliphatic >CC3 0. mg/l.4 Aromatic >C0C 0.0 mg/l 8. Aromatic >CC6 3 mg/l 38 Aromatic >C6C 3 mg/l 5 Aromatic >CC3 0. mg/l. Modified TPH (Tier ) 3 mg/l /0/0 30 Resemblance FO Notes: = Partnership in RBCA (RiskBased Corrective Action) Implementation (PIRI) Tier I Risk Based Screening Levels (RBSLs) for a residential site with nonpotable grouwater a coarse grained soil, gasoline/fuel oil/lube oil impacts (September, 003) RDL = Reportable Detection Limit "" = iicates value is not available or does not apply < # = Not detected above RDL noted Shaded = Value exceeds applicable criteria

26 Table 4.6 Results of Laboratory Analysis of Dissolved Metals in Grouwater East Bulk Fuel Storage Site Phase III ESA, HHERA a RAP Former U.S Military Facility, Northwest Point, NL Stantec Consulting Ltd. Project No Sampling (Stantec) Parameter RDL Units Criteria 09MW5 09MW6 09MW7 Aluminum 5.0 ug/l Antimony.0 ug/l 0,000 <.0 <.0 <.0 Arsenic.0 ug/l,900 <.0 <.0 <.0 Barium 5.0 ug/l 9, Beryllium.0 ug/l 67 <.0 <.0 <.0 Bismuth.0 ug/l <.0 <.0 <.0 Boron 5.0 ug/l 45,000 <5.0 <5.0 <5.0 Cadmium 0.07 ug/l < Chromium.0 ug/l <.0 Cobalt 0.40 ug/l Copper.0 ug/l <.0.5 Iron 50 ug/l 634 4,50 4,80 Lead 0.50 ug/l 5 <0.50 <0.50 <0.50 Manganese.0 ug/l Mercury 0.0 ug/l 0.9 < Molybdenum.0 ug/l 9,00 <.0 <.0 <.0 Nickel.0 ug/l 490 <.0 < Selenium.0 ug/l 63 <.0 <.0 <.0 Silver 0.0 ug/l.5 <0.0 <0.0 <0.0 Strontium 5.0 ug/l Thallium 0.0 ug/l 50 <0.0 <0.0 <0.0 Tin.0 ug/l <.0 <.0 <.0 Titanium.0 ug/l.3 6. <.0 Uranium 0.0 ug/l 40 <0.0 <0.0 <0.0 Vanadium.0 ug/l <.0 Zinc 5.0 ug/l, Notes: = Ontario Ministry of the Environment (MOE) Soil, Grouwater a Sediment Staards for Use Uer Part XV. of the Environmental Protection Act. July 7, 009. Table 3: full depth generic site coition staards in a nonpotable grouwater coition, coarsegrained soil < # = Not detected above RDL noted "" = No applicable guideline

27 Table 4.7 Results of Laboratory Analysis of General Chemistry in Grouwater East Bulk Fuel Storage Site Phase III ESA, HHERA a RAP Former U.S Military Facility, Northwest Point, NL Stantec Consulting Ltd. Project No Sampling (Stantec) Parameter Units Criteria 09MW5 09MW6 RDL 09MW7 RDL Metals Dissolved Calcium mg/l Dissolved Magnesium mg/l Dissolved Phosphorus mg/l <0.004 to >0. 3 <0. <0. 0. <0. 0. Dissolved Potassium mg/l Dissolved Sodium mg/l Calculated Parameters Anion Sum me/l N/A 0.70 N/A Bicarb. Alkalinity (calc. as CaCO3) mg/l Calculated TDS mg/l Carb.Alkalinity (calc. as CaCO3) mg/l < < < Cation Sum me/l N/A N/A Hardness (CaCO3) mg/l 8 0 Ion Balance (% Difference) % N/A 9.9 N/A Langelier Iex (@ 0C) N/A Langelier Iex (@ 4C) N/A Nitrate (N) mg/l.9 <0.05 < < Saturation ph (@0C) N/A Saturation ph (@4C) N/A Inorganics Total Alkalinity (Total as CaCO3) mg/l Dissolved Chloride (Cl) mg/l < Colour TCU Nitrate + Nitrite mg/l <0.05 < < Nitrite (N) mg/l 0.06 <0.0 < < Nitrogen (Ammonia Nitrogen) mg/l 0.07 < < Total Organic Compou mg/l 6 <50() 50 <50() 50 Orthophosphate (P) mg/l <0.0 < < ph ph N/A 6.0 N/A Reactive Silica (Si)) mg/l Dissolved Sulphate (SO4) mg/l < < < Turbidity NTU Narritive Couctivity us/cm Notes: = CCME Water Quality Guidelines for the protection of freshwater aquatic life (007) = Maximum increase of 8 NTUs from backgrou levels when backgrou levels are between 8 a 80 NTUs 3 = Phosphorous guideline is depeant on trophic status of the freswater environment RDL = Reportable Detection Limit < # = Not detected above RDL noted "" = iicates value is not available or does not apply () Detection limit increased due to sample matrix Shaded = Value exceeds applicable criteria

28 Table 4.8 Results of Laboratory Analysis of TPH/BTEX in Sediment East Bulk Fuel Storage Site Phase III ESA, HHERA a RAP Former U.S Military Facility, Northwest Point, NL Stantec Consulting Ltd. Project No Sample Location Benzene Toluene Ethyl C 6 C 0 C 0 C C C 3 Modified Xylenes Benzene (Gas Range) (Fuel Range) (Lube Range) TPH Resemblance RDL Units mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg Criteria, Sampling (Stantec) 09SED3 <0.03 <0.03 <0.03 <0.05 <3 470 <5 470 WFO Notes: = Ontario Ministry of Environment Guideline for sediments to be used as lake fill material (993). There are no federal or provincial guidelines for TPH or BTEX in freshwater sediment = Modified TPH Tier I does not include BTEX RDL = Reportable Detection Limit for routine analysis < # = Not detected above RDL noted "" = Iicates value is not available or does not apply WFO = Weathered fuel oil

29 Table 4.9 Results of Laboratory Analysis of Metals in Sediment East Bulk Fuel Storage Site Phase III ESA, HHERA a RAP Former U.S Military Facility, Northwest Point, NL Stantec Consulting Ltd. Project No Parameters RDL Units Criteria Criteria 009 Sampling (Stantec) 09SED3 Aluminum 0 mg/kg 3,000 Antimony mg/kg < Arsenic mg/kg < Barium 5 mg/kg 8 Beryllium mg/kg < Bismuth mg/kg < Boron 5 mg/kg <5 Cadmium 0.3 mg/kg <0.3 Chromium mg/kg Cobalt mg/kg Copper mg/kg Iron 50 mg/kg 4,300 Lead 0.5 mg/kg Lithium mg/kg Manganese mg/kg 54 Mercury 0. mg/kg <0. Molybdenum mg/kg < Nickel mg/kg 3 Rubidium mg/kg 5 Selenium mg/kg < Silver 0.5 mg/kg <0.5 Strontium 5 mg/kg 0 Thallium 0. mg/kg <0. Tin mg/kg < Uranium 0. mg/kg 0. Vanadium mg/kg Zinc 5 mg/kg 3 35 Notes: = CCME Interim Sediment Quality Guidelines (ISQGs) for freshwater sediment (00) = CCME Probable Effects Levels (PELs) for freshwater sediment (00) RDL = Reportable Detection Limit < = Not detected above RDL noted "" = iicates value is not available or does not apply

30 Table 4.0 Results of Laboratory Analysis of PCBs in Vegetation East Bulk Fuel Storage Site Phase III ESA, HHERA a RAP Former U.S Military Facility, Northwest Point, NL Stantec Consulting Ltd. Project No Sample Location Polychlorinated Biphenyls (PCBs) RDL 0.05 Units ug/l Criteria na 009 Sampling (Stantec) 09VEG5 <0.3 09VEG6 <0.3 Notes: RDL = Reportable Detection Limit na = No applicable guideline < # = Not detected above RDL noted

31 PHASE III ESA, HHERA AND RAP, NORTHWEST POINT, LABRADOR Appeix 4f Results of Hydraulic Response (BailDown) Test East Bulk Fuel Storage Site

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