Pre-Workshop Questionnaire on Estimating Water Supply Reliability
This questionnaire is to help inform the Delta Independent Science Board’s (Delta ISB’s) review of the methods and approaches for estimating water supply reliability. Responses from the first set of questions (questions #1 to 6) will help develop an inventory of estimation efforts, and it will be best if each group conducting, funding, or employing water supply estimation efforts can provide a group response.

For the remaining questions (questions #7 to 13), we are looking for individual responses, rather than a group's response. The responses to these questions will help the Delta ISB understand applications and issues with water supply reliability estimation before a workshop on January 10, 2019, that will help identify priorities for research, areas for collaboration, and directions for improved analysis. The Delta ISB will not link responses back to the respondent for questions #7 to 13.

We realize that this questionnaire will require some time to complete. However, from previous reviews, such individual comments are tremendously insightful for developing our reports, and we greatly appreciate your time and thought in this regard.

Contact Information
Name(s) *
Your answer
Affiliation(s): *
Your answer
Position: *
Your answer
E-mail *
Your answer
Please describe your length of involvement with water supply reliability estimation. *
Information for Water Supply Estimation Inventory
Please skip questions #1-6 if you are not responding on behalf of your group conducting water supply reliability estimations.
1) Please summarize the purposes underlying the water supply reliability estimates that your group conducts, funds, or employs.
Your answer
2) For each purpose identified above, how often or regularly are these water supply estimates made? (e.g., every operating season, annually, every few years, only for planned new facilities, etc.)
Your answer
3) Please identify the computer models and modeling groups that you use for water supply reliability analyses.
Your answer
4) Please list some example technical reports, papers, or memos that provide details on your water supply reliability analyses, including descriptions of models, data, and analytical practice details. Please include citations and web links. If web links do not exist, please e-mail the example reports to disb@deltacouncil.ca.gov.
Your answer
5) How are your water supply estimates applied?
Your answer
6) What are the best uses of your group’s water supply reliability estimates?
Your answer
Multiple Choice Questions
For these questions, the Delta ISB is looking for individual responses, and will not link responses back to an individual.
7) In general, are water supply reliability estimates and studies done in a rigorous technical way? *
Please briefly explain.
Your answer
8) In general, are reliability estimates sufficiently understood, communicated to, and applied by managers and decision-makers? *
Please briefly explain (e.g., how can communication be improved?).
Your answer
9) In general, are water supply reliability estimates and studies employed in policy and management discussions and decisions? *
Please briefly explain.
Your answer
Open-ended Questions
For these questions, the Delta ISB is looking for individual responses, and will not link responses back to an individual.
10) What major technical and application problems and uncertainties do you see in water supply reliability estimation that limit their utility for management and decision-making?
Your answer
11) What are some major technical or institutional innovations that would improve the use of water supply reliability studies in the future?
Your answer
12) Science needs. What are some research directions that might support improvements in water supply reliability estimates and the use of such estimates for management and decision-making?
Your answer
13) Please add any other comments or suggestions you would like to make on water supply reliability estimation.
Your answer
Thank you for filling out the questionnaire.
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