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

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Table 6-3<br />

Comparison of Field <strong>and</strong> Fixed Laboratory Reporting Limits with <strong>Site</strong>-<strong>Specific</strong> Soil-Gas<br />

Preliminary Remediation Goals (PRGs) for an Unrestricted L<strong>and</strong> Use Scenario<br />

Proposed South Region High School #9 <strong>and</strong> Middle School #4<br />

South Gate, California<br />

COPC a/<br />

Soil Gas PRG<br />

(Unrestricted<br />

L<strong>and</strong> Use)<br />

(µg/m 3 )<br />

b/ c/<br />

Carcinogenic- or<br />

Noncarcinogenicbased<br />

PRG d/<br />

Fixed<br />

Laboratory<br />

RL (µg/m 3 )<br />

FIXED AND BIOGENIC GAS<br />

OXYGEN (O 2) -- -- --<br />

CARBON DIOXIDE (CO 2) -- -- --<br />

METHANE -- -- --<br />

OXYGENATES i/<br />

Field<br />

Laboratory<br />

RL (µg/L)<br />

DI-ISOPROPYL ETHER (DIPE) -- -- -- 1 j/<br />

ETHANOL -- -- -- 1 j/<br />

ETHYL TERTIARY BUTYL ETHER (ETBE) -- -- -- 1 j/<br />

tert-AMYL METHYL ETHER (TAME) -- -- -- 1 j/<br />

tert-BUTYL ALCOHOL (TBA) -- -- -- 1 j/<br />

tert-BUTYL METHYL ETHER (MTBE) 6.28E+03 C -- 0.1 j/<br />

OTHER<br />

1,4-DIOXANE 1.66E+02 C 7.21E+00 1 j/<br />

HYDROGEN SULFIDE 5.85E+03 NC --<br />

Field<br />

Laboratory<br />

RL (µg/m 3 )<br />

e/ e/<br />

e/ e/<br />

e/ e/<br />

1000 j/<br />

1000 j/<br />

1000 j/<br />

1000 j/<br />

1000 j/<br />

100 j/<br />

1000 j/<br />

e/ e/<br />

a/<br />

COPC = chemical of potential concern.<br />

b/<br />

PRG = preliminary remediation goal based on an unrestricted l<strong>and</strong> use scenario calculated per Parsons, 2004b.<br />

c/<br />

ppmv = parts per million by volume.<br />

d/<br />

NC = PRG based on noncarcinogenic effects; C = PRG based on carcinogenic effects.<br />

e/<br />

A field meter will be used to semi-quantitatively screen for carbon dioxide, ethane, ethene, hydrogen sulfide, <strong>and</strong> methane, <strong>and</strong> then any<br />

positives would be confirmed by the field lab (with selective confirmation by the fixed lab).<br />

f/<br />

Bolded values are greater than their respective PRGs.<br />

g/<br />

This RL is for separate analysis (in addition to TO-14A/TO-15) that will be performed at locations where 1,2,3-TCP is detected by the mobile lab.<br />

h/<br />

These RLs are for analytes analyzed via the TO-13 method at selected locations based on historical results.<br />

i/<br />

Oxygenates will be identified as Tentatively Identified Compounds by the Fixed Laboratory.<br />

j/<br />

This COPC is not on the DTSC/RWQCB list of analytes. The identification <strong>and</strong> quantification would be based on a one-point st<strong>and</strong>ard.<br />

K:\Depts\Dept48\LAUSD\MSA WORK\Soil Investigation\OU 1 RAP\Appendix\Appendix H - QAPP\Table6-3 - Compare RLs <strong>and</strong> PRGs .xls Page 3 of 3<br />

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