Often, events from agriculture that stir up dust are short-term, occurring at grain harvest or planting times, and have relatively little effect on year-round ambient air quality. “Most often, these events don’t record trigger levels,” Svalty said.

Most particulate monitors are placed near urban areas with some located in rural locations, primarily to provide background information. “Monitors are set up by state agencies,” he said.

Recent emphasis on dust, he added, came from a mandate in the Clean Air Act that requires evaluation of particulate matter standards every five years. “Five years from now, we will look at particulate matter standards again. The Clean Air Act decrees that.”

He said two Supreme Court decisions regarding Definition of the Waters of the United States created confusion as to what bodies of water were included. “Farm ponds are nowhere near the Definition of Waters of the United States,” he said. Also, applying pesticides in fields “with puddles” will not trigger EPA action. He said the regulation concerns applications made specifically to water, such as for mosquito control. And applying pesticides to soil “is a FIFRA issue.”

Svalty also commented on controversial “fly-over” surveillance of livestock operations in Region 7 last year. “We took a lot of criticism for that, but what we do is rooted in logic.”

He said Region 7, particularly Nebraska and Iowa, includes a lot of large Concentrated Animal Feeding Operations (CAFO). The region also has impeded watersheds, he said.

“We have to figure out what causes the impediments. Two years ago, EPA determined that visiting each feedlot was not a good use of time. Most were not causing problems, and we don’t have the manpower to visit them all. And EPA inspections, even on the good operations, are not fun. We have used fly-overs for years to see from the air where over-filled lagoons are located.”

He said fly-overs are a “very effective tool that screens out the operations that are doing well from those that need attention. We are avoiding needless inspection of operations that are doing a good job.”

Detrick had also asked if EPA regulations had caused the U.S. fertilizer industry to move manufacturing off-shore. “The United States can be totally food-efficient, but we can’t produce food without nitrogen fertilizer,” he said. “Nitrogen fertilizer production has gone to China. In 2012 we depended on foreign sources for half of our nitrogen fertilizer. What difference does it make to the environment when we buy nitrogen from China and they emit emissions into the air? We have no bi-lateral agreement on a cleaner environment.”

Svalty said he had no data to show why nitrogen manufacturing has moved out of the United States.

He did reply to the “sue and settle” claim, however. “We get sued a lot,” he said. “We are often sued by environmental groups and we are also sued by agricultural advocates. That’s part of the legal process, and I don’t anticipate that it will change. The process will be used by both sides.”

Questions of apparent over-regulation can be addressed, in part, by improvements in science. “We understand better how things operate. The ability to measure adequately has improved. The science we use now is different than the science of 1971. But changes in regulations will be based on sound science.”

Detrick said agriculture and the EPA do have areas where cooperation has proven beneficial to both sides. He said section 319 of the Clean Water Act has been helpful in limiting non-point source pollution. “We have proven that we don’t have to go to court to solve problems,” he said. Funds available from the 319 program helped Oklahoma take nearly 30 streams off the contaminated stream list, Detrick said.

“When EPA’s budget was cut, we lost some of the 319 funds.”

Svalty also commented on the assumption that environmental regulations have increased over the past four years. He said a lot of regulations put into practice over the last few years actually were enacted prior to the Obama Administration.

“The backlog of regulations waiting to be initiated is exceptionally long,” he said. “Some have been in the works for eight to 10 years. It’s a long-term process. The idea that EPA has a closet full of regulations waiting to go is not the case.”

He said the recent election will not necessarily mean a rash of new EPA regulations.