Showing posts with label Enbridge. Show all posts
Showing posts with label Enbridge. Show all posts

Tuesday, January 13, 2015

OIL AN WATER Jan.2015

WATERWORKS by Gordon Prickett   A monthly column for the 1/7/2015 Aitkin Independent Age

OIL AND WATER

Much ink has been used to describe what the Canadian firm Enbridge Inc. wants to do with its pipelines across Minnesota. As of December 2014 Enbridge is petitioning the Public Utilities Commission in Minnesota to allow a newly-proposed Sandpiper Pipeline Project to cross the center of Aitkin County. At first this new corridor was to transport light crude oil from the Bakken Formation in North Dakota. In recent months Enbridge has added a replacement 36-inch diameter pipeline (Line 3) into the requested Sandpiper Corridor. This oil is diluted bitumen from the Athabasca Tar Sands of Fort McMurray, Alberta.

Our county commissioners are in favor of a positive decision by the Minnesota PUC, citing several millions in tax revenue from the North Dakota oil flowing through Aitkin County. Opponents testifying before the county board and the PUC refer to oil leaks and spills from Enbridge pipelines in recent times. Both the light crude oil and the heavy bitumen pose threats to Aitkin County’s rivers and wetlands when leaking from beneath the surface. Normal depth of pipe is about four feet, but when crossing the Mississippi River below Palisade, Sandpiper will tunnel down to 30 feet beneath the river bed.

Enbridge claims they operate their lines safely today and have invested in new technology and control centers to detect any interruptions. The Line 3 pipe is 46 years old and must be operated at reduced capacity on its 34-inch diameter pipe. Inspection digs are scheduled to check on its condition. When this line is replaced it will be emptied and cleaned; then left in the ground.

WHAT ABOUT REFINERIES?

Currently the heavy Canadian Oil is transported to the nearest refineries at Superior, Wisconsin, and Rosemount, Minnesota. However, the three native tribes on the Fort Berthold Reservation in North Dakota have plans to build an oil refinery. The economics of the global oil marketplace are changing with increasing supply from North America. The price of a barrel of crude oil has been cut in half in 2014 - from $110 down to under $55 per barrel. Extracting the sand and clay from the Alberta open pits and piping light crude up to the tar pits so a diluted mixture will flow through a pipeline is costly.

Similarly, in North Dakota large quantities of water under high pressure, mixed with volatile organic compounds and quartz sand from Wisconsin sand mines, are injected in wells two miles deep to fracture or separate the tightly-bound shale and oil. Not the least of the costs for this new oil source is the production water required and the disposal and treatment of waste water.

Then there is costly “Off-shore oil,” raised from distant ocean platforms. Scientists have tracked our Common Loons from Minnesota to their winter homes in the Gulf of Mexico - the very region where the BP oil platforms exploded and leaked. The dispersants used on that fugitive oil made the harm to coastal wetlands worse than if it had sunk to the bottom. We have indications that BP’s spill may be responsible for recent lower loon counts.

Petroleum engineers can produce oil much cheaper from the vast shallow reserves in Saudi Arabia and Iran than from other global suppliers. As North America moves towards “Energy Independence” and starts producing oil and gas for export, we can begin to see the effect on some other natural resources - clean water and wildlife.

Friday, March 28, 2014

HOW MUCH WATER?

A WATERWORKS column by Gordon Prickett

for the 4/2/2014 Aitkin Independent Age


HOW MUCH WATER?

My “Weatherguide” Calendar from the Freshwater Society has a message in its March section that bears repeating here:

How much water do you use? Most of us probably don’t know. According to the EPA, an average American household uses 320 gallons every day. One third of that is used to irrigate the landscape and 50% of that is wasted due to inefficient landscape methods. March is a great time to plan a water-friendly landscape for the coming growing season. When rain falls, why not harvest all the fresh, free water for your gardens and lawns?

One inch of rain on a 1000 square foot rooftop can yield 600 gallons of water. Incorporate more native plants into your landscape. They are drought tolerant and require less maintenance. Keep the water on your land by adding a rain garden this year. There is more to learn at freshwater.org.
STATE OF WATER CONFERENCE

Cragun’s Resort on Gull Lake near Brainerd is the location for a conference on Thursday and Friday, May 1-2, 2014. Sponsors are Conservation Minnesota, Freshwater Society, University of Minnesota Extension, MPCA, and DNR. This is a revival of the biennial state-wide conferences that formerly were put on by the Minnesota Lakes Association, that became Minnesota Waters, before its closure.

Two full days, starting with breakfasts, will feature workshops, breakout sessions, exhibits, and major speakers on issues of clean water, aquatic habitat and invasive species, watersheds, groundwater, and shore restoration. Details of the programs, cost, and registration can be found on this website: conservationminnesota.org/state-of-water-conference and at 612-767-2444.

OIL PIPELINE REGULATION

As introduced in last month’s column and reported on the front page in the March 19th Independent Age, the Enbridge Sandpiper Pipeline Project was explained before a packed hall in McGregor for four hours on March 13th. Public comments and routing alternatives will continue to be received by the state commerce department until April 4th. Then a year’s worth of government actions and public hearings are planned, with a final decision from the Public Utilities Commission expected about March 23, 2015. If approvals are received, Enbridge estimates that construction might begin in late 2014 or early 2015. The Sandpiper Pipeline could then be operational in 2016. Crude oil from the Bakken field in North Dakota would flow across 42 miles in Aitkin County on its way to a Superior, Wisconsin, refinery, Enbridge’s tank farm, and other connecting pipelines.