Vanadium Background Data Summary Paul Locke June 2013

Vanadium Background Data Summary

Paul Locke

June 2013
(RED indicates Clay Data)

• 
   Sanborn Head client projects (from Mathew A. DiPilato):
  

• 
  Natural Soils (n=48)  AVERAGE = 15 mg/kg; MIN = 4.3 mg/kg; MAX = 63 mg/kg
  
• 
  No data on Boston Blue Clay (They did not have contamination concerns on those projects so they just did COMM-97 not MCP 14 metals)
  
• 
  Fill Soils (n=147) AVERAGE = 20 mg/kg; MIN = 5.1 mg/kg; MAX = 46 mg/kg
  
  • 
    Historic Fills (n=65) AVERAGE = 21.4 mg/kg; MIN = 5.1 mg/kg; MAX = 40 mg/kg
    
  • 
    Non-Historic Fills (n=82) AVERAGE = 18.2 mg/kg; MIN = 7.2 mg/kg; MAX = 46 mg/kg
    

• 
  Haley & Aldritch Soil Data
  
  • 
    FILL MATERIAL:  (n=154) AVERAGE = 24.8 mg/kg; GEOMETRIC MEAN = 21.3 mg/kg
    
    • 
      MIN = 5.2 mg/kg; Max = 260 mg/kg
      
    • 
      50^th %tile = 22.4 mg/kg; 90^th %tile = 35 mg/kg; 95^th %tile = 42.4 mg/kg
      
  • 
    MARINE CLAY:  (n=85) AVERAGE = 49.4 mg/kg; GEOMETRIC MEAN = 44.7 mg/kg
    
    • 
      MIN = 6 mg/kg; Max = 95 mg/kg
      
    • 
      50^th %tile = 50.0 mg/kg; 90^th %tile = 72.0 mg/kg; 95^th %tile = 89.0 mg/kg
      
  • 
    GLACIAL SOILS:  (n=28) AVERAGE = 29.1 mg/kg; GEOMETRIC MEAN = 26.7 mg/kg
    
    • 
      MIN = 11 mg/kg; Max = 53 mg/kg
      
    • 
      50^th %tile = 27 mg/kg; 90^th %tile = 47.9 mg/kg; 95^th %tile = 50.7mg/kg
      

• 
  USGS (1984) “Element Concentrations in Soils and Other Surficial Materials of the Conterminous United States”
  

• 
  USGS Report: (n=1319) AVERAGE = 80 mg/kg  GEOMETRIC MEAN = 58 mg/kg; RANGE = <7 – 500 mg/kg
  
  • 
    Western U.S.:  AVERAGE = 88 mg/kg  GEOMETRIC MEAN = 70 mg/kg; RANGE = <7 – 500 mg/kg
    
  • 
    Eastern U.S.:  AVERAGE = 66 mg/kg  GEOMETRIC MEAN = 43 mg/kg; RANGE = <7 – 300 mg/kg
    
• 
  Also cited in paper:
  
  • 
    Rose (1979) MEDIAN = 57 mg/kg
    
  • 
    Vinogradov (1959)(presumed worldwide sampling) AVERAGE = 100 mg/kg
    
  • 
    Mitchell (1964) (Scottish surficial soil) RANGE = 20 – 250 mg/kg
    
  • 
    Brooks (1972) AVERAGE = 100 mg/kg
    

• 
   New Jersey (1993) “A Summary of Selected Soil Constituents and Contaminants at Background Locations in New Jersey”
  
  • 
    OVERALL:  (n = 80)
    

• 
  Arith MEAN = 17.6 mg/kg;
  
• 
  MIN= <0.3 mg/kg; MAX = 165 mg/kg
  

• 
  URBAN:  (n = 19)
  

• 
  Geometric MEAN = 18.5 mg/kg;
  
• 
  Arith MEAN = 22.6 mg/kg;
  
• 
  MIN= 1.0 mg/kg; Median= 21.1 mg/kg; 90^th %tile= 39.9 mg/kg; MAX = 46.1 mg/kg
  

• 
  SUBURBAN:  (n = 18)
  

• 
  Geometric MEAN = 8.1 mg/kg;
  
• 
  Arith MEAN = 14.1 mg/kg;
  
• 
  MIN= 0.5 mg/kg; Median= 14.0 mg/kg; 90^th %tile= 34.4 mg/kg; MAX = 41.4 mg/kg
  

• 
  RURAL:  (n = 35)
  

• 
  Geometric MEAN = 6.5 mg/kg;
  
• 
  Arith MEAN = 17.3 mg/kg;
  
• 
  MIN= <0.3 mg/kg; Median= 7.6 mg/kg; 90^th %tile= 34.8 mg/kg; MAX = 165.0 mg/kg
  

• 
  GOLF GREEN:  (n = 5)
  

• 
  Geometric MEAN = 8.3 mg/kg;
  
• 
  Arith MEAN = 11.4 mg/kg;
  
• 
  MIN= 1.3 mg/kg; Median= 10.6 mg/kg; 90^th %tile= 20.1 mg/kg; MAX = 20.1 mg/kg
  

• 
  FARM:  (n = 3)
  

• 
  Geometric MEAN = 20.7 mg/kg;
  
• 
  Arith MEAN = 20.7 mg/kg;
  
• 
  MIN= 20.3 mg/kg; Median= 20.3 mg/kg; 90^th %tile= 21.5 mg/kg; MAX = 21.5 mg/kg
  
• 
  Also cited in paper:
  
  • 
    RUTGERS: (n=unknown) AVERAGE = 48.7 mg/kg
    

• 
  TWO SITES IN CAMBRIDGE, MA (Donovan)
  
  • 
    Fill Material (n=87) AVERAGE = 30.5 mg/kg; MIN = 9.1 mg/kg; 95^th%tile = 49 mg/kg; MAX = 280 mg/kg
    
  • 
    Clay Material (n=69)
    
    • 
      AVERAGE = 59.8 mg/kg;
      
    • 
      MIN = 17 mg/kg;
      
    • 
      95^th%tile = 97 mg/kg;
      
    • 
      MAX = 120 mg/kg
      

• 
  FRESHWATER SEDIMENTS AT TWO MASSACHUSETTS SITES
  
  • 
    (n=11) AVERAGE = 42.6 mg/kg; MIN = 16.9 mg/kg; 95^th%tile = 70.8 mg/kg; MAX = 73 mg/kg
    

• 
  AN ESTUARY IN MASSACHUSETTS
  
  • 
    (n=10) AVERAGE = 40.5 mg/kg; MIN = 26 mg/kg; 95^th%tile = 59 mg/kg; MAX = 62 mg/kg
    

• 
  SHACKLETTE DATA
  
  • 
    New England  (n=28) AVERAGE = 84.3 mg/kg; MIN = 20 mg/kg; 95th%tile = 150 mg/kg; MAX = 150 mg/kg
    
  • 
    Massachusetts Alone:  (n=6) AVERAGE = 86.7 mg/kg; MIN = 20 mg/kg; MAX = 150 mg/kg
    

• 
  ORS DATA (1995)
  
  • 
    Massachusetts Sites: (n=30)
    
    • 
      GEOMETRIC MEAN = 7.6 mg/kg;
      
    • 
      MIN = <1 mg/kg;
      
    • 
      50^th %tile = 10.3 mg/kg;
      
    • 
      90^th %tile = 28.5 mg/kg;  BASIS OF PROPOSED RCS-1, ROUNDED to 1 SIGNIFICANT FIGURE (30)
      
    • 
      95^th %tile = 38.5 mg/kg;
      
    • 
      MAX = 46.6 mg/kg
      

• 
  ONTARIO (1998)
  
  • 
    (n=101) 97.5^th %tile = 77 mg/kg