WHEN WATER WORLDS COLLIDE

The Wall Street Journal has reported on an alleged fight in Nevada over ground water between a city which is seeking to construct a 20 mile long pipeline to tap the aquifer and a ranching community which fears that their wells could dry up if the city's plan is approved. The ground water at issue is fed by mountain runoff. The article also recites similar controversies in other locations. (Wall Street Journal, March 8, 2013, p. A3)

Disputes over water rights are not new, nor are they likely to be confined to western states. For example, Lake Michigan is a magnet for many thirsty water systems who salivate over the possibility of tapping into the Lake and abandoning their declining wells or lesser quality surface water supplies. In theory, taking water from the Lake is limited to water systems within the Lake's watershed. However, as an example, diversion has been permitted in Chicago under a 1930s U.S. Supreme Court ruling.

Water wars are unlikely to go away. More likely, they will increase, as cities grow, climate changes, and surface water supplies prove no longer adequate or are all spoken for. On the other hand, who knows for sure how much ground water is available and where?

Two questions come to mind. First, how should source water be allocated to the competing user groups? Who has priority? What standards are applicable?

Second, Who should do the allocating? State governors? State administrative regulatory agencies? State courts?

An issue lurking in the shadows is the interstate nature of water. For example, aquifers contain water that may have come from other states or Canada, from runoff or as original water. Likewise, surface waters may have sources in upstream states.

The commerce clause of the U.S. Constitution--the clause that authorizes Oongress to regulate interstate commerce--was inserted because states had been enacting tariff barriers to imports from other states so as to protect commerce within a particular state. The Commerce Clause is a touchstone for such federal regulations low water toilets, faucets and shower heads, the Safe Drinking Water Act and USEPA.

Looking into the future, do not be surprised if, and when, Congress comes marching into the water wars with primacy federal regulation of allocations of water sources of supply.