The EPA maintains data on the attainment of water quality for the nation's watersheds - the area drained by water bodies such as rivers, streams, lakes, estuaries and coastal waters.
The % Good column in the table below is the percentage of the retirement city's watershed that "Fully Supports" its designated use as public water supply, agricultural, recreational, industrial or other use.
Vail, Colorado ranks highest in this criteria among our 99 great retirement cities because 93% of its watershed fully supports the designated use.
|2002 - 2014|
|San Marcos, TX||San Marcos||89%||0%||11%||2|
|Bigfork, MT||South Fork Flathead and Swan||75%||14%||11%||3|
|Georgetown, TX||San Gabriel||88%||0%||12%||4|
|Gatlinburg, TN||Lower French Broad||87%||0%||13%||5|
|Aspen, CO||Roaring Fork||84%||0%||16%||6|
|Hot Springs Village, AR||Upper Saline and Fourche La Fave||72%||1%||27%||8|
|The Woodlands, TX||Spring and West Fork San Jacinto||71%||0%||29%||9|
|Tyler, TX||Upper Neches||71%||0%||29%||9|
|Prescott, AZ||Big Chino-Williamson Valley, Upper Verde and Hassayampa||68%||0%||32%||12|
|Colorado Springs, CO||Fountain||67%||0%||33%||13|
|Clarksville, TN||Lower Cumberland||66%||0%||34%||14|
|Palm Springs, CA||Southern Mojave and Salton Sea||47%||20%||34%||15|
|GPTR Rank - Lower "% Impaired" is better|
|% Good = Percent of the watershed that Fully Supports all of its designated uses|
|% Threatened = Percent of the watershed that currently Fully Supports all of its designates uses|
|but may become impaired in the future if pollution control actions are not taken|
|% Impaired = Percent of the watershed that cannot Fully Support one or more of its designated|
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