Natural Resource Damage Assessment: Methods and Cases
Natural Resource Damage Assessment: Methods and Cases
Natural Resource Damage Assessment: Methods and Cases
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Table 3.2: Contingent Valuation Studies of Groundwater Values<br />
Location<br />
Cape Cod,<br />
MA<br />
Action evaluated<br />
Uses of water<br />
Protection from nitrates Drinking water<br />
Omitted health effects;<br />
included option values<br />
Dover, NH Increased water supply<br />
protection<br />
MI Protection from<br />
pesticides <strong>and</strong> nitrates<br />
Dougherty Increased water supply<br />
Co., GA protection from<br />
agricultural chemicals,<br />
nitrates <strong>and</strong> pesticides<br />
National Protection from l<strong>and</strong>fill<br />
leachate<br />
GA Protection from nitrate<br />
contamination<br />
MA, NY,<br />
PA<br />
IN, NE,<br />
WA,<br />
Lower<br />
Susque-<br />
hanna<br />
Same as in<br />
above<br />
study<br />
Portage<br />
County,<br />
Wisconsin<br />
Portage<br />
County,<br />
Wisconsin<br />
Clark <strong>and</strong><br />
Adam<br />
counties,<br />
Iowa<br />
Increased water supply<br />
protection (TCE<br />
contamination <strong>and</strong><br />
diesel fuel)<br />
Protecting rural<br />
drinking water fro m<br />
contamination by<br />
agricultural chemical<br />
residues<br />
A filter that would<br />
reduce or completely<br />
eliminate nitrates from<br />
drinking water<br />
Groundwater protection<br />
program to ensure<br />
nitrate st<strong>and</strong>ard for<br />
drinking water after<br />
testing water<br />
Groundwater protection<br />
program to ensure<br />
nitrate st<strong>and</strong>ard for<br />
drinking water after<br />
testing water<br />
Delaying nitrate<br />
contamination of water<br />
supply by 10, 15 <strong>and</strong> 20<br />
years<br />
<strong>and</strong> bequest values<br />
Current personal use<br />
values, option values<br />
<strong>and</strong> bequest values<br />
67<br />
Approximate WTP<br />
$1,623/HH/year to increase<br />
probability of supply from 0 to 1.<br />
$815/HH/year for a 25% reduction<br />
in risk<br />
Mean = $129/HH/year.<br />
Median = $40/HH/year.<br />
Reference<br />
Edwards,<br />
1988<br />
Shultz &<br />
Lindsay,<br />
1990<br />
Groundwater Rural: $43-46/HH/year.<br />
Caudill,<br />
Urban: $34-69/HH/year.<br />
1992<br />
Municipal public water Mean = $641/HH/year Sun, et. al.,<br />
supplies <strong>and</strong> rural<br />
private wells;<br />
Included health effects<br />
1992<br />
Groundwater;<br />
Included health effects<br />
Drinking water;<br />
Included health effects<br />
Municipal public water<br />
supplies<br />
$84/HH/year McClell<strong>and</strong><br />
et al., 1992<br />
Public water: mean = $121/HH/year<br />
median = $66/HH/year<br />
Private water: mean = $149/HH/year<br />
median = $89/HH/year<br />
Jordan <strong>and</strong><br />
Elnagheeb,<br />
1993<br />
Mean: $62/HH/year Powell, et.<br />
al., 1994<br />
Drinking water Mean: $128-$639/HH/year Crutchfield<br />
et al., 1995<br />
Municipal public water<br />
supplies; mentioned<br />
human health effects<br />
Private well drinking<br />
water quality<br />
Private well drinking<br />
water quality<br />
Private well drinking<br />
water quality<br />
WTP for safer water: $545-<br />
$661/HH/year (mean = $634).<br />
WTP for nitrate-free water: $580-<br />
$781/HH/year (mean = $654).<br />
$207/HH/year if subjective<br />
probability of exceeding nitrate<br />
st<strong>and</strong>ard is 0.5 <strong>and</strong> $516 if<br />
probability is one<br />
Crutchfield<br />
et al, 1997<br />
Poe, 1998<br />
$412/HH/year Poe <strong>and</strong><br />
Bishop,<br />
1999<br />
$118/HH/year for 10 year delay<br />
$191/HH/year for 20 year delay<br />
NOTE: “HH” = household; WTP = willingness to pay. Values rounded off to the nearest dollar.<br />
Hurley, et<br />
al., 1999