Appendix B—A Portion of a Sample Contingent Value Methods Questionnaire

John Reed Powell

  1. There are many ways to protect public water supplies, and communities vary greatly in the extent to which they protect water supplies. We would like your opinion on how well you feel the drinking water supply in your community is protected from contamination.

Study the chart below and circle one letter (A, B, C, or D) that corresponds to how safe you feel about your household drinking water supply.

HOW SAFE I FEEL

PROTECTION LEVEL

DESCRIPTION

VERY SAFE

A

I feel absolutely secure. I have no worries about the safety of the community water supply at present. I am certain the level of protection is excellent and I cannot foresee any contamination occurring in the near future.

SAFE

B

I feel secure. I am confident the community water supply is safe at present. I am sure the level of protection is good and I am reasonably sure the water will not be contaminated in the near future.

SOMEWHAT SAFE

C

I feel apprehensive. I am unsure about the safety of the community water supply. I think the level of protection is adequate at present, but I am uneasy about the future. There is a possibility it could become contaminated in the near future.



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OCR for page 174
Valuing Ground Water: Economic Concepts and Approaches Appendix B—A Portion of a Sample Contingent Value Methods Questionnaire John Reed Powell There are many ways to protect public water supplies, and communities vary greatly in the extent to which they protect water supplies. We would like your opinion on how well you feel the drinking water supply in your community is protected from contamination. Study the chart below and circle one letter (A, B, C, or D) that corresponds to how safe you feel about your household drinking water supply. HOW SAFE I FEEL PROTECTION LEVEL DESCRIPTION VERY SAFE A I feel absolutely secure. I have no worries about the safety of the community water supply at present. I am certain the level of protection is excellent and I cannot foresee any contamination occurring in the near future. SAFE B I feel secure. I am confident the community water supply is safe at present. I am sure the level of protection is good and I am reasonably sure the water will not be contaminated in the near future. SOMEWHAT SAFE C I feel apprehensive. I am unsure about the safety of the community water supply. I think the level of protection is adequate at present, but I am uneasy about the future. There is a possibility it could become contaminated in the near future.

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Valuing Ground Water: Economic Concepts and Approaches UNSAFE D I feel troubled. I am anxious about the safety of the community water supply. I have doubts about the level of protection and I think it is very likely the water will become contaminated in the near future. One way to prevent pollution of the supply is to establish an areawide special water protection district. This district would develop and implement pollution prevention policies specifically designed to suit your community's needs. Those in the district who would benefit from the increased protection would make an annual payment, which would be added to their water utility bill. We are interested in discovering what you would be willing to pay, in higher water utility bills, per year to increase the level of protection for your community water supply. Take into account your household income and the fact that the money would have come from some part of your budget. Using the payment card below, please indicate how much you are willing to pay, per year, to go from your present protection level, which you indicated on the chart in Question 1, to the highest level (For example, if you feel "SOMEWHAT SAFE" now, what would you pay to move to "VERY SAFE")? Circle one dollar range as your annual payment. $0 $51-75 $201-225 $0-10 $76-100 $226-250 $11-20 $101-125 $251-275 $21-30 $126-150 $276-300 $31-40 $151-175 $301-325 $41-50 $176-200 $326-350 If you would be willing to pay more than $350, what is the maximum amount per year that would pay $________. If you answered "$0" to Question 2, please indicate which one of the following reasons best describes why you answered the way you did: I AM ALREADY AT THE HIGHEST PROTECTION LEVEL. I NEED MORE INFORMATION TO ANSWER THE QUESTION. I DO NOT WANT TO PLACE A DOLLAR VALUE ON WATER SUPPLY PROTECTION.

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Valuing Ground Water: Economic Concepts and Approaches I AM ALREADY PAYING ENOUGH. OTHER (Please specify)_________________________________________________________ Many individuals and groups supply information about water quality. How much trust do you have in information from each of the following different sources? Circle one letter for each item.   TRUST IN SOURCE   DO NOT TRUST AT ALL SOME TRUST GREAT DEAL OF TRUST UNSURE Business and Industry a b c d Citizen Groups a b c d Municipal Water Supplier a b c d Farmers a b c d State Agency Officials a b c d Newspapers a b c d Local Government Officials a b c d Scientific Experts a b c d Environmental Groups a b c d