Soil Exposure: Residential Tier 1 Risk Screen indicates acceptable cancer risk, 3.6 x 10^-9. Primary soil contaminants are the pesticides DDT (0.0065 mg/kg max.). An unacceptable non-cancer risk, Hazard Index=1.02, was also reported. The principle compounds responsible for non-cancer risk include: aluminum (14,900 mg/kg max.), lead (65.4 mg/kg max.), manganese (541 mg/kg max.), and nickel (59.2 mg/kg max.).

No groundwater samples were collected from this parcel during the EBS sampling program.

Soil Exposure: Residential Tier 1 Risk Screen indicates an unacceptable cancer risk of 2.7 x 10^-3. The prinicple contaminants include benzo(a)pyrene (130 mg/kg max.), other polynuclear aromatic hydrocarbons, and beryllium (1.5 mg/kg max.) Residential Tier 1 Risk Screen indicated an unacceptable non-cancer risk, hazard index=7.14, for soil exposure. This risk was principally due to the non-carcinogenic polynuclear aromatic hydrocarbons including pyrene and anthracene. A subsequent Tier 2 Risk Screen indicated the following:

• Residential Soil Cancer Risk - 1.2 x 10^-2 primarily due to benzo(a)pyrene and other polynuclear aromatic hydrocarbons in soils.
  
• Residential Soil Hazard Index - 1.4 primarily due to aluminum, manganese and pyrene.
  

Groundwater Exposure: Gasoline (1,300 µg/L max in groundwater) is found in samples from this parcel. Petroleum products were not included in the Risk Screen.

Residential Tier 1 Risk Screen indicated an acceptable non-cancer risk, hazard index=0.099, for groundwater exposure. Pyrene (16 µg/L max) in groundwater was largely responsible for this risk

One soil gas sample was collected from this parcel during the EBS Phase 2A/2B Sampling. Soil gas samples did not contain volatile organics above a detection limit of 5 to 20 mg/m3.

No soil or groundwater samples were collected from this parcel during the EBS sampling program.

No soil or groundwater samples were collected from this parcel during the EBS sampling program.

Soil Exposure: Gasoline (1.6 mg/kg max) and Diesel Fuel (2,540 mg/kg max) are found in samples at this parcel. Petroleum products were not included in the Risk Screen.

Residential Tier 1 Risk Screen indicated an unacceptable cancer risk of 1.0 x 10^-6 for soil exposure. Primary soil contaminants are benzo(a)pyrene (0.036 mg/kg max.) and PCBs (0.036 mg/kg max.). Acceptable non-cancer risk, Hazard Index=0.268, for soil exposure. Primary soil contaminant is thallium (3.1 mg/kg max.). A subsequent Tier 2 Risk Screen indicated the following:

• Residential Cancer Risk - 3.4 x 10^-6 primarily due to benzo(a)pyrene (0.036 mg/kg max).
  

Groundwater Exposure: Residential Tier 1 Risk Screen indicated an unacceptable cancer risk of 3.6 x 10^-4 for groundwater exposure. Primary groundwater contaminant is arsenic (15.9 µg/L max.). Unacceptable non-cancer risk, Hazard Index=7.9, from groundwater exposure. Primary contaminants are aluminum (45,800 µg/L max.), arsenic, and lead (15 µg/L max.). A subsequent Tier 2 Risk Screen indicated the following:

• Residential Cancer Risk - 2.8 x 10^-4 primarily due to arsenic.
  
• Residential Hazard Index - 4.2 primarily due to arsenic and aluminum .
  

Soil Exposure: Residential Tier 1 Risk Screen indicated an unacceptable cancer risk of 2.1 x 10^-6 for soil exposure. The primary contaminants are PCBs (0.051 mg/kg max.) and benzo(a)pyrene (0.064 mg/kg).

No groundwater samples were collected from this parcel during the EBS sampling program.

Soil Exposure: Residential Tier 1 Risk Screen indicated an acceptable non-cancer risk, Hazard Index=0.465,.for soil exposure. The primary contaminant is thallium (2.5 mg/kg).

No groundwater samples were collected from this parcel during the EBS sampling program.

No soil or groundwater samples were collected from this parcel during the EBS sampling program.

Soil Exposure: Residential Tier 1 Risk Screen indicates acceptable non-cancer risk, Hazard Index=0.003, from soil exposure. Zinc (65.4 mg/kg max. in soil) was the only chemical of conern during the Tier 1 risk screen.

No groundwater samples were collected from this parcel during the EBS sampling program.

Soil Exposure: Gasoline (2,000 mg/kg max) is found in samples from this parcel. Petroleum products were not included in the Risk Screen. Residential Tier 1 Risk Screen indicates acceptable cancer risk, 6.3 x 10^-7 from soil exposure. Primary soil contaminant is n-nitroso di-n-propylamine (0.036 mg/kg max.). Non-cancer risk, Hazard Index=0.352, for soil exposure. Principle contaminant is thallium (1.8 mg/kg max.). A subsequent Tier 2 Risk Screen indicated the following:

• Residential Cancer Risk - 1.1 x 10^-6 primarily due to incidental soil ingestion and dermal contact with soil. Primary soil contaminant is n-nitroso di-n-propylamine.
  
• Residential Non-cancer Risk - Hazard Index=0.34 primarily due to incidental soil ingestion and dermal contact with soil. Primary soil contaminant is thallium.
  
• Occupational Cancer Risk - 3.0 x 10^-7, Non-cancer Risk , Hazard Index=0.018
  

Groundwater Exposure: Gasoline (130,000 µg/L max) and Diesel Fuel (5,800 µg/L max) are found in samples from this parcel. Petroleum products were not included in the Risk Screen. Residential Tier 1 Risk Screen indicates unacceptable cancer risk, 1.5 x 10^-2 from groundwater exposure. Primary groundwater contaminant is benzene (5,600 µg/L max.). Non-cancer Risk, Hazard Index=543, for groundwater exposure. Principle contaminants include: benzene, 1,2-dichloroethylene (89 µg/L max), and toluene (1,600 µg/L max). A subsequent Tier 2 Risk Screen indicated the following:

• Residential Cancer Risk - 4.0 x 10^-2 primarily due to inhalation of groundwater. Primary groundwaer contaminant is benzene.
  
• Residential Non-cancer Risk - Hazard Index=450 primarily due to inhalation of groundwater. Primary groundwater contaminant is benzene.
  

Soil Exposure: Residential Tier 1 Risk Screen indicates acceptable cancer risk, 9.0 x 10^-9 from soil exposure. Primary soil contaminant is bis(2-ethylhexyl)phthalate (0.11 mg/kg max.). Non-cancer risk, Hazard Index=0.487, for soil exposure. Principle contaminant is thallium (3.1 mg/kg max.). A subsequent Tier 2 Risk Screen indicated the following:

• Residential Cancer Risk - Cancer Risk 1.1 x 10^-6 primarily due to incidental soil ingestion and dermal contact with soil. Primary soil contaminant is n-nitroso di-n-propylamine.
  
• Residential Non-cancer Risk - Hazard Index=0.49 primarily due to incidental soil ingestion and dermal contact with soil. Primary soil contaminant is thallium.
  
• Occupational Cancer Risk - 2.8 x 10^-9, Non-cancer Risk, Hazard Index=0.025
  

Groundwater Exposure: Diesel Fuel (100 µg/L max) is found in samples from this parcel. Petroleum products were not included in the Risk Screen. Residential Tier 1 Risk Screen indicates unacceptable cancer risk, 7.7 x 10^-4 from groundwater exposure. Primary groundwater contaminants are arsenic (33.8 µg/L max.) and beryllium (4.2 µg/L max.). Non-cancer Risk, Hazard Index=32, for groundwater exposure. Principle contaminants include: lead (99.8 µg/L max), aluminum (197,000 µg/L max), arsenic, manganese (4,450 µg/L max), nickel (1,210 µg/L max), and vanadium (594 µg/L max). A subsequent Tier 2 Risk Screen indicated the following:

• Residential Cancer Risk - 4.0 x 10^-2 primarily due to ingestion. Primary groundwater contaminants are arsenic and beryllium.
  
• Residential Non-cancer Risk - Hazard Index=13 primarily due to ingestion of groundwater.
  
• Blood Lead Level - Groundwater screening shows acceptable blood lead level of 10 µg/L exceeded in 2 percent of adults and over 10 percent of children.
  

Soil Exposure: Gasoline (3,520 mg/kg max in soil and 410 µg/L max in groundwater) and Diesel Fuel (9,920 mg/kg max in soil and 2,800 µg/L max in groundwater) is found in samples from this parcel. Petroleum products were not included in the Risk Screen. Residential Tier 1 Risk Screen indicates unacceptable cancer risk, 5.0 x 10^-6 from soil exposure. Primary soil contaminant is benzo(a)pyrene (0.24 mg/kg max.) and other polynuclear aromatic hydrocarbons. Non-cancer risk, Hazard Index=0.576, for soil exposure. Principle contaminant is thallium (5.0 mg/kg max.). A subsequent Tier 2 Risk Screen indicated the following:

• Residential Cancer Risk - 2.1 x 10^-5 primarily due to incidental soil ingestion and dermal contact with soil. Primary soil contaminant is benzo(a)pyrene.
  
• Residential Non-cancer Risk - Hazard Index=0.55 primarily due to incidental ingestion and dermal contact with soil. Primary soil contaminant is thallium.
  
• Occupational Cancer Risk - 7.6 x 10^-5, inhalation risk from trichloroethylene (0.009 mg/kg max in soil) and tetrachloroethylene (0.031 mg/kg max in soil) Non-cancer Risk , Hazard Index=0.029
  

Groundwater Exposure: Gasoline (410 µg/L max.) and Diesel Fuel (2,800 µg/L max) are found in samples from this parcel. Petroleum products were not included in the Risk Screen. Residential Tier 1 Risk Screen indicates unacceptable cancer risk, 1.4 x 10^-3 from groundwater exposure. Primary groundwater contaminants are arsenic (15.3 µg/L max.) and beryllium (17.8 µg/L max.). Non-cancer Risk, Hazard Index=109, for groundwater exposure. Principle contaminants include: lead (277 µg/L max), and aluminum (638,000 µg/L max). A subsequent Tier 2 Risk Screen indicated the following:

• Residential Cancer Risk - 1.1 x 10^-3 primarily due to ingestion. Primary groundwater contaminants are arsenic and beryllium.
  
• Residential Non-cancer Risk - Hazard Index=44 primarily due to ingestion.
  
• Blood Lead Level - Groundwater screening shows acceptable blood lead level of 10 µg/L exceeded in all adults and children.
  

No soil or groundwater samples were collected from this parcel during the EBS sampling program.

No soil or groundwater samples were collected from this parcel during the EBS sampling program.

Soil Exposure: Gasoline (3,900 mg/kg in max.) is found in samples from this parcel. Petroleum products were not included in the Risk Screen.

Residential Tier 1 Risk Screen indicated an unaccepatable cancer risk of 8.8 x 10^-6 for soil exposure. The primary contaminants are beryllium (1.6 mg/kg max.) and N-nitroso di-n-propylamine (0.027 mg/kg).

Groundwater Exposure: Gasoline (60 µg/L max.) and diesel fuel (140 µg/L max.) are found in soil and groundwater samples at this parcel. Petroleum products were not included in the Risk Screen.

Residential Tier 1 Risk Screen also found an unacceptable risk of 2.1 x 10^-6 for exposure to groundwater. The chlorinated solvent trichloroethylene (2.0 µg/L max.) was the primary contaminant.

Soil Exposure: Diesel fuel (3.1 mg/kg max. in soil) is found in samples from this parcel. Petroleum products were not included in the Risk Screen.

Residential Tier 1 Risk Screen indicated an accepatable cancer risk of 3.2 x 10^-9. The primary contaminants are bis(2-ethylhexyl)phthalate (0.1 mg/kg max.). Residential Tier 1 Risk Screen also found an acceptable non-cancer risk, Hazard Index=0.000. Primary soil contaminants bis(2-ethylhexyl)phthalate and diethylphthalate (0.3 mg/kg max.).

No groundwater samples were collected from this parcel during the EBS sampling program.

Soil Exposure: Residential Tier 1 Risk Screen indicates acceptable cancer risk, 8.4 x 10^-7. Primary soil contaminant is benzo(a)pyrene (0.042 mg/kg max.)

No groundwater samples were collected from this parcel during the EBS sampling program.

Soil Exposure: Diesel fuel (150 mg/kg max.) was found in samples from the parcel. Petroleum products were not included in the Tier 1 Risk Screen.

Tier 1 Residential Risk Screen indicates an acceptable hazard index=0.017. This risk was associated with the presence of lead (2.2 mg/kg max.) in soils.

No groundwater samples were collected from this parcel during the EBS sampling program.

No soil or groundwater samples were collected from this parcel during the EBS sampling program.

No soil or groundwater samples were collected from this parcel during the EBS sampling program.