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Agenda
Drinking Water Assessment Methodology Workshop

Procedures Used to Estimate Drinking Water Concentrations
for Use in Human Health Risk Assessments

February 28, 2001

Radisson Hotel Old Town, 901 North Fairfax Street, Alexandria, Virginia

9:00-9:10 I. WELCOME
Marcia Mulkey, Director Office of Pesticide Programs, EPA
Allen Jennings, Director, Office of Pest Management, USDA
9:10-9:20 II. INTRODUCTION - Elizabeth Leovey, Ph.D. Introduction of speakers, discussion of agenda, what we intend to accomplish, and what attendees can expect to learn from the workshop.

9:20-9:40 III. CONTEXT - Nelson Thurman, M.S.
Why we assess concentrations of pesticides in drinking water, how these assessments differ from those for food, and an explanation of the tiered approach for this process.
9:40-10:00 DISCUSSION

10:00-10:20 IV. DATA SOURCES AND TOOLS
a. Discussion of the models used at each tier, the inputs, outputs and sources of data which feed the models. Jim Cowles, Ph.D.

10:20-10:35 BREAK

10:35-10:55 DISCUSSION

10:55-11:15 b. Presentation of sources of monitoring data and how these data are used in the assessment. - R.David Jones, Ph.D.

11:15-11:35 DISCUSSION
11:35-11:45 V. TREATMENT - Betsy Behl, MS.
How we intend to factor drinking water treatment into the assessment.
11:45-11:55 DISCUSSION

11:55-Noon VI. PREVIEW OF THE AFTERNOON SESSION - Betsy Behl, MS.
Noon-1:15 LUNCH
1:15-3:00 VII. CASE STUDY - James Hetrick, Ph.D.
Audience will participate in a drinking water assessment of a chemical currently being evaluated in the reregistration process.
3:00-3:20 VIII. ADVANCES AND FUTURE DIRECTIONS
a. Discussion of field data driven regression models - Ron Parker, Ph.D.

3:20-3:35 DISCUSSION

3:35-3:55 b. Future plans for ground water modeling - Michael Barrett, Ph.D. c. Monitoring Data/Interagency Workgroup - Mah Shamim, Ph.D.
3:55-4:05 DISCUSSION

4:05-4:15 Public Comment

 

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