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Site-Specific Health and Safety Plan (HASP) - Laschools.org

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Sample Location<br />

Table L-5<br />

Correlation between STLC <strong>and</strong> Total Concentration<br />

Sample<br />

Date<br />

Sample<br />

Depth (ft<br />

bgs)<br />

PA33-25 2/16/2001 0.5 280 mg/kg 1800 ug/L<br />

PA33-27 2/16/2001 2.5 1100 mg/kg 48000 ug/L<br />

PSG33-36 2/13/2001 0.5 250 mg/kg 25000 ug/L<br />

PSG35-3 2/13/2001 2.5 710 mg/kg 13000 ug/L<br />

PSG35-4 1/26/2001 0.5 250 mg/kg 4200 ug/L<br />

PSG35-6 1/26/2001 0.5 200 mg/kg 3900 ug/L<br />

PSG35-8 1/26/2001 0.5 340 mg/kg 7800 ug/L<br />

PSG35-9 2/7/2001 0.5 180 mg/kg 1800 ug/L<br />

PA37-11 2/7/2001 0.5 280 mg/kg 1700 ug/L<br />

029-PS056 5/14/2008 0.5 2000 mg/kg 15000 ug/L<br />

029-PS056 5/14/2008 3 2500 mg/kg 30000 ug/L<br />

029-PS055 5/13/2008 0.5 940 mg/kg 52000 ug/L<br />

129-PS060 5/13/2008 0.5 1200 mg/kg 44000 ug/L<br />

029-PS060 5/13/2008 3 280 mg/kg 7200 ug/L<br />

029-PS060 5/13/2008 5 340 mg/kg 4200 ug/L<br />

029-PS062 5/13/2008 0.5 310 mg/kg 42000 ug/L<br />

029-PS062 5/13/2008 3 470 mg/kg 49000 ug/L<br />

STLC Concentrations<br />

(ug/L)<br />

100000<br />

10000<br />

STLC Threshold: 5000 ug/L<br />

Corresponding Tot Conc: 209 mg/kg<br />

Lead<br />

STLC vs. Total Lead Concentrations<br />

y = 27.067x 0.9766<br />

R 2 = 0.4014<br />

1000<br />

100 1000 10000<br />

Total Lead Concentrations (mg/kg)<br />

380

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