Laserfiche WebLink
<br />to exclude stations in remote non-populated areas. The data include average <br />daily maximum temperature in 2000, normal (30-year average) daily <br />maximum temperature, departure from normal maximum temperature in <br />2000, total precipitation for 2000, normal (30-year) annual precipitation and <br />departure from normal precipitation in 2000. The county-level weather data <br />were assigned to water providers based on the county of location. <br /> <br />Median household income, number of households, household size and the <br />ratio of single-family to total housing were all obtained from the United <br />States Census Bureau, 2000 Census. Data were obtained at the Census <br />Designated Place (CDP) level when a provider could be matched with a CDP. <br />When a CDP could not be matched with a provider service area, county-level <br />Census data were obtained, except for the number of households. Data on <br />number of households must be representative of the provider service area. <br />Therefore, number of households data were obtained only for providers with <br />a matched CDP. The number of observations in the sample data base <br />matched with number of households data were 125 (of 167). Note that this is <br />the only variable in the sample database not having 167 observations. Single- <br />family ratios were calculated from Census units-in-structure data by dividing <br />the sum of one-attached and one-detached housing units by the total number <br />of housing units. <br /> <br />County-level employment data were obtained from the Colorado DOLA. <br />Ratios were created from this data for the industrial, retail and service sectors <br />at the county level. Employment for each sector was divided by total <br />employment for the county. These ratios were assigned to providers based <br />on the county of location. <br /> <br />A set of binary variables was included in the database to indicate the basin <br />location of each provider. In addition, binary variables were included as <br />indicators of three regional areas of the state (i.e., Eastern Colorado, the Front <br />Range, or Mountain region). <br /> <br />Sample Database Statistics <br /> <br />The SWSI sample database consists of data for 167 providers. The geographic <br />distribution of these providers are shown in Figure 2. The providers are <br />located throughout the eight river basins of the state: the Arkansas, <br />Colorado, Gunnison, North Platte, Rio Grande, San Juan, South Platte and <br />Yampa. The number of observations per basin varies from one in the North <br />Platte to 65 in the South Platte. The North Platte basin consists of one, <br />sparsely populated county. <br /> <br />Note that subsequent to the modeling analysis described in this section, additional <br />water providers were added to the database as described in the GPCD Results <br />section. <br /> <br />As illustrated in Figure 2, the sample database provides a geographic <br />representation of water providers throughout the state. Forty-two <br />observations (twenty-five percent) are located in the Arkansas basin, sixteen <br />(ten percent) in the Colorado, eleven (seven percent) in the Gunnison, one in <br /> <br />10 <br /> <br />III. Data Collection and Analysis <br />