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Technical Assistance
Questions may be submitted to the TRW hotline in either of the following ways:
- For Lead IEUBK Model or Adult Lead Methodology questions, send an e-mail to pbhelp@epa.gov.
- For Asbestos questions, send an e-mail to asbestoshelp@epa.gov.
- For Arsenic questions, send an e-mail to arsenichelp@epa.gov.
- For Bioavailability questions, send an e-mail to bahelp@epa.gov.
- Call the toll-free TRW hotline at 1-866-282-8622. If a hotline staff member is not available to speak with you, you may leave a message on the hotline voicemail system.
Hotline requests are received and logged by staff members. Technical experts will respond to the call within 24 hours. In some instances, further research may be required to respond to the request. The requester will be notified of all progress. Hotline requests that require significant research are referred to the appropriate committee for their review and consideration. If responses to hotline questions require discussion during a teleconference, the requesters are notified and may be encouraged to participate in the teleconference. The written response summarizing the Committee's review and recommendations will be provided after the teleconference.