• Mark Ryan

New Mexico under the New WOTUS rule

As I have written in the past, the new WOTUS rule will have a much bigger impact in the arid west than elsewhere because of the large percentage of streams that are ephemeral or intermittent. The prairie potholes in the midwest are a close second, I think. But let's focus on one state in the arid west, New Mexico.

New Mexico is interesting because it is one of the last three states in the country that is not authorized to run the NPDES program. EPA Region 6 writes all of the permits for that state. It has been estimated that upwards of 96 percent of the water bodies in New Mexico will not meet the test for jurisdiction under the new WOTUS rule. If that estimate is off by a third, it's still a big number.

According to a 2005 EPA report I reviewed, at the time, there were 127 individual NPDES permits in New Mexico, 46 general permittees, 151 CAFOs and 102 pretreatment permits. If most of those permits involve discharges to ephemeral streams, which is extremely common in New Mexico, they likely won't need permits under the new rule, and can discharge what they will. There is no state program to fill the gap, and the state has only six water quality inspectors.

Similarly, in Idaho, the City of Jerome, Idaho (population 11,800) discharges to the J Canal, which is a man-made ditch that would not be considered WOTUS under the new rule. Idaho now has the NPDES program, but will it step in to require Jerome to have a permit for its discharges, which ultimately flow into the Snake River? Idaho law prohibits state environmental laws from being tougher than federal standards.

I'm sure there are many more examples of this problem throughout the arid west, especially in Arizona. It will be interesting to see how the regulators adapt to this major re-shuffling of the law. I suspect New Mexico will challenge the rule and ask for an injunction to protect those permits. Other arid west states, however, have Republican governors, and likely will not file challenges, although enviro groups may step in.

20 views0 comments

Recent Posts

See All

New 2020 WOTUS Rule Challenge Filed

Two New Mexico tribes filed a new challenge to the 2020 WOTUS rule in the D. of New Mexico on March 29. This complaint sets itself apart from many of the others in that it asserts a failure to abide b

The CWA Blog is Retiring in June

Thirty-three years of practicing law is enough, and I'm retiring this year. Unfortunately, that also means the end of the CWA Blog. I've decided, after careful consideration, to send the Blog off into

Sackett Update

You will recall that the latest chapter of the long Sackett saga is that EPA filed a motion to dismiss the appeal as moot given that the old WOTUS rule, which is the basis of the Sackett challenge, is

© 2016 by Ryan & Kuehler PLLC.

  • Facebook Basic Black
  • LinkedIn Basic Black
  • Twitter Basic Black