SRP does a lot of interesting stuff to store it. PHX gets water from 3 rivers - salt, verde, and Colorado. The Salt and Verde contribute 52%, and the Colorado

SRP does a lot of interesting stuff to store it. PHX gets water from 3 rivers - salt, verde, and Colorado. The Salt and Verde contribute 52%, and the Colorado River 38%. Reclaimed water accounts for 8% of the city's water supply, and groundwater the remaining 2%. (note: the reclaimed water is interesting - Palo Verde nuke plant uses PHX's reclaimed water for cooling the (still?) largest nuclear power plant in the country.) SRP uses large ponds/takes to 'recharge' the aquifers under PHX, as well as maintaining reservoirs.