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Non-Residential Settings

Non-Residential Settings. Introduction for upcoming presentations : Attenuation at Non-Residential Sites Berry-Spark Lawless Sharma Goldberg-Day In the context of USEPA’s (OSWER) Nov. 2002 Draft VI Guidance Henry Schuver , US EPA, OSWER-OSW

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Non-Residential Settings

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  1. Non-ResidentialSettings • Introduction for upcoming presentations: • Attenuation at Non-Residential Sites • Berry-Spark • Lawless • Sharma • Goldberg-Day • In the context of USEPA’s (OSWER) Nov. 2002 Draft VI Guidance • Henry Schuver, US EPA, OSWER-OSW 20th Annual Int. Conf. on Soils, Sediments and Water

  2. Non-Residential Buildings • Not in VI Guidance screening values • Not in Q4 Generic screening values • Not in Q5 (Fig. 3) screening values • Can be Q6 site-specific model [w/ sampling] • (of USEPA’s (OSWER) Nov. 2002 Draft VI Guidance)

  3. Scope of the Guidance (Sec. 1D) • Intent: • “incremental increases in exposures” • “primarily designed for … residential” • “may be adjusted” so that • “human exposures in non-residential settings may also be considered”

  4. Scope of the Guidance (Cont.) Recommended adjustments: Air Volume (of buildings) Air Exchange Rates (fresh air) Exposure Durations (yrs, d/y) (h/d [IR, tox., controls?]) Can use CERCLA spreadsheets to modify these: http://www.epa.gov/superfund/programs/risk/airmodel/johnson_ettinger.htm

  5. GW-ADV Version 3.1 02/04 EPA, IED reports 2.0

  6. Closing Points for Non-Res. • Would appear to be advantageous to have: • Screening values for generic Non-Residential Bldg. • For buildings yet to be constructed (Future (Non-Res.) Uses) • Possible addition to VI Guidance? • Not here to discuss ‘stds’ for use with IAQ est. • Now let’s hear about the most recent observations:

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