<human>: Is "To prevent further loss of groundwater, Tucson has been involved in water conservation and groundwater preservation efforts, shifting away from its reliance on a series of Tucson area wells in favor of conservation, consumption-based pricing for residential and commercial water use, and new wells in the more sustainable Avra Valley aquifer, northwest of the city." a good answer to the question "How many wells has Tucson stopped using since 2001?"
OPTIONS:
- yes
- no
<bot>: no