3.2 Data sources

There are some publicly available data on the location of groundwater receptors surrounding the Jewett site. In particular, the Texas Water Development Board provide information on the location of groundwater wells, as well as information about the chemical characteristics of these wells, including measures of the wells’ pH, hardness, etc. A summary of these data is provided in Figure 3-2.

Figure 3-1. Groundwater Valuation Approach

Table 3-1. Methods for Groundwater Valuation

Approach	Application
Treatment Cost	The cost of treatment either in situ or at wellhead/point of use.
Added cost	Contamination can impose added costs on current and future water users (e.g., cost of treatment or access to a substitute source of water).
Market Price	The application of observed prices in competitive markets. Limited to locations with active water markets.
Stated preference	Values derived through surveys of the public.
Hedonic property analysis	Econometric analysis of patterns in residential property prices to reveal environmental amenity/disamenity.
Benefits transfer	Application of existing valuation literature in a new setting. Values based on the methods listed above.
Replacement cost	Damages based on cost to restore, replace or acquire the equivalent of the injured resource, such as cost to protect an aquifer of equivalent yield and quality.