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Comment by volkl48 | Hacker News Reader

This is a more complex problem than it is in many other regions of the country.

For the most obvious - Once you're off a municipal water supply (which of course, has to have an adequate source of water in the region), available water resources/aquifers are often very limited and minimum lot sizes have to be large because the land can't support higher density housing.

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If you build anything even approaching "normal" suburban SFH housing, you're just going to have all the wells you'll have to sink run dry in a few months and the properties will be uninhabitable. Seeing a 2 acre minimum lot size isn't necessarily a "keep the poor people out" thing.

To be clear, I am mostly not referring to the cities mentioned in this article, but housing development in smaller mountain towns and the rural/semi-rural areas up in the mountains.

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The Western US population / urban centre geographical distribution far more resembles an archipeligo than a continental population distribution. Part of this is due to transportation and historical settlement and development. Much though is due to water, or its lack.

This becomes especially clear when you realise that Los Angeles's watershed extends 1,500 miles eastward (about 2,400 km), to the Colorado River and the eastern front of the Rocky Mountains. Los Angeles has (under western-US water law) senior rights to water, over those of users far upstream of it.

Water supplies, and the rights to them, are based in large part on the economic (and hence legal and legislative/political power) of metropolitan areas. Since a large city with large rights effectively sucks dry land from 100s or 1,000s of miles away, population concentrates into a few centres, rather than being distributed across the land.

This contrast shows up most especially in the "Earthlights" images of the US mainland at night, where east of the Mississippi river settlements are dotted evenly through the landscape, but thin rapidly as one heads further west, dissolving into a few mega-concentrations: the Colorado front, Salt Lake - Provo, Albequerque, Phoenix, Las Vegas, LA-San Dieto, the Bay Area, Portland, Seattle. A few more-populated regions exist (the Sacramento-San Joaquine valley, the Willammette valley), but these are sparse compared with the Eastern US.

https://upload.wikimedia.org/wikipedia/en/4/48/Earthlights_d...

This kind of thing is solvable. When I built my house in Park City, Utah, I discovered that the growth in the area is projected to overwhelm the municipal sewer system in the coming decade. So I had to pay an impact fee of $3,000 per bathroom in order to get my building permit. I happily paid $15K, knowing that the money will go to the budget of a new treatment plant. There are very few places where there's actually no water. It's mostly a question of the infrastructure being available (enough storage, for example).

This is a great point.

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