tag:blogger.com,1999:blog-30940686.post5402367889604834346..comments2024-02-11T22:49:17.311-08:00Comments on Arizona Geology: Kingman development may take up to 70,000 ac-ft of groundwaterLee Allisonhttp://www.blogger.com/profile/11520300956249160005noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-30940686.post-51311398842707205322008-02-05T14:10:00.000-08:002008-02-05T14:10:00.000-08:00From the article: "roughly 70,000 acre-feet of gro...From the article: "roughly 70,000 acre-feet of groundwater per year from the same basin is available to Rhodes through his ownership of large tracts of land".<BR/><BR/>I'm from outside the US and curious about (ground)water management in the US (or in this case Arizona; I think regulations vary from state to state).<BR/><BR/>Do I understand correctly that by just owning a certain area of land, you are entitled to a withdraw a certain volume of water? Or is it just Rhodes' wish to get that much? Who has to decide on who may extract how much water? (A job I would not like to do...)<BR/><BR/><BR/>The amount of water seems rather big to me; I just try to get an idea of the numbers:<BR/><BR/>70000 acre-feet are approx. 86 Mio. m³ (more than a third of Berlin's yearly consumption). The basin has about 4700 km ², that would require a recharge rate of almost 20 mm/year. (For simplicity, I assumed that the whole basin receives recharge, which it does not, of course. I just try to get an idea of the amount of water involved in terms I could relate to.) That would be a considerable amount under humid conditions like in Germany. For drier regions, it seems prohibitive. However, I don't really know the range of GW recharge in Arizona.<BR/><BR/>Sorry for all the questions...Anonymousnoreply@blogger.com