Entries by Brett Walton

U.S. Hydropower Grows By Going Small

Hydropower expansion relies on improving existing dams. By Brett Walton, Circle of Blue Change is coming for the 90-year-old Point Marion Lock and Dam, change that could signal a new direction for America’s water and power infrastructure. More than a decade ago a steady flow of barges passed through Point Marion, on the Monongahela River […]

Federal Water Tap, August 15: U.S. Appeals Court Upholds Carbon Accounting Rules

The Rundown A federal appeals court affirms the Obama administration’s social cost of carbon guidance. EPA science advisory panel criticizes the agency’s fracking study. A mining company agrees to pay $US 143 million to prevent water contamination from a closed molybdenum mine in New Mexico while Congressional Republicans question the EPA about mining regulations. NASA […]

Federal Water Tap, August 8: Army Corps Approves River-Crossing Permit for Dakota Oil Pipeline

The Rundown Permit allows 1,100-mile oil pipeline to cross under the Missouri River. The White House puts climate change at the center of federal agency environmental planning while the world’s glaciers are on a long losing streak. A coal company pays a $US 3 million Clean Water Act fine. Watchdog agency tells Army Corps to […]

Colorado River’s Tale of Two Basins

Water diversions upstream increase risk in stressed watershed. By Brett Walton, Circle of Blue In Colorado, rivers flow not only down mountain slopes but beneath them, across them, and through them. Nearly four dozen canals, tunnels, and ditches in the state move water out of natural drainages and into neighboring basins. Some snake across high […]

Federal Water Tap, August 1: Energy Department Report Endorses U.S. Hydropower Growth

The Rundown The Energy Department identifies a path for more U.S. hydropower. The White House issues a cyberattack response plan. The EPA issues water quality recommendations to protect fish from copper and selenium, while the EPA’s internal watchdog delays an investigation into the Gold King mine spill. Federal agencies make “little progress” on a national […]

Federal Water Tap, July 25: Enbridge Agrees to $177 Million Settlement for Michigan Oil Spill

The Rundown Justice Department reaches deal over largest inland oil spill in U.S. history. EPA environmental justice council studies water affordability. The country experienced eight billion-dollar disasters in the first half of 2016. EPA approves new methods to test drinking water for contaminants while noting that many states are now doing more than federal rules […]

Israel’s Mediterranean Desalination Plants Shift Regional Water Balance

Desalination could remake the region’s politics and ecology. It hasn’t yet. By Brett Walton, Circle of Blue TEL AVIV, Israel — The water that flows into Sorek desalination plant is drawn from near the Mediterranean Sea floor. Pumped inland, the water is cleansed, step by step, of salts and impurities. The transmutation does not take […]

Federal Water Tap, July 18: Senate Leaves for Vacation with Water Bills Still on the Floor

The Rundown No action yet on important water and environment bills. NOAA establishes a new water office. California and federal agencies release a strategy to save the Delta smelt. The U.S. Geological Survey identifies hot spots for corrosive groundwater and reckons what rising seas will do to Cape Cod. A law expert clears a path […]

Federal Water Tap, July 11: EPA Will Not Regulate Forest Road Runoff

The Rundown Instead of new federal rules, the EPA will work within existing local and state programs to manage logging road runoff. The CDC is helping North Carolina health officials deal with a brain-eating amoeba at a whitewater park. The House passes a bill to protect salmon but fisheries experts question its effectiveness. The House […]

Federal Water Tap, July 5: Florida Senators Tour the Algae Coast

The Rundown Huge bloom of toxic algae on Florida coast send officials looking for quick fixes to chronic problem. Federal science review of nonstick chemicals, sometimes found in groundwater near industrial facilities, finds strong evidence that they damage human immune systems. Clean energy agreement could help Canadian hydropower. Federal dam in Montana without hydropower might […]

North America Clean Energy Plan Could Boost Canadian Hydropower

Leaders pledge more use of low-carbon fuels. By Brett Walton, Circle of Blue At a summit in Ottawa today, the leaders of Canada, Mexico, and the United States agreed to accelerate North America’s development of low-carbon energy sources, pledging that half of their combined electricity use will come from “clean” fuel sources by 2025. “We […]

California Fresh Groundwater Reserves Triple in New Assessment

Researchers urge caution in underground disposal of oil waste, to protect deep water sources. By Brett Walton, Circle of Blue California’s breadbasket has more water than once thought. The water is just far deeper underground — nearly two miles in some cases — than researchers, farmers, and cities typically search. Only oil and gas companies […]