Enbridge's Line 2 **
Line 67 tar sands** pipeline has leaked an estimated 600 gallons  of crude oil at its pump station near Viking, Minnesota. Line 2 was built in 1956 and has a history of spills. Regulators ordered Enbridge to reduce its Line 2 operating pressure in October 2010 following the company's Kalamazoo River tar sands spill.
The Enbridge Viking pump station also receives oil from the Alberta Clipper (aka Line 67 pipeline ) that carries heavy crude oil and tar sands bitumen from the Alberta tar sands region south from Hardisty to Superior, Wisconsin and refineries in the midwestern United States.
It is unclear whether the product that spilled was tar sands-derived diluted bitumen. According to a link provided by Enbridge  subsequent to this story's original posting, Line 2 begins in Edmonton and carries petroleum products, including crude oil, from Edmonton to Superior. Both lines pass through the Viking pump station.
The U.S. Coast Guard National Response Center website  reports the details of the incident , which happened last night:
"1044848","1044848","1044848","INCIDENT","23-APR-2013 17:09","THE CALLER REPORTED THAT A LEAK ON A PRESSURE TRANSMITTER RESULTED IN A RELEASE OF CRUDE OIL.","FIXED","EQUIPMENT FAILURE","23-APR-2013 15:45","18060 203TH ST NW","MN","VIKING","MARSHALL","ENBRIDGE ENERGY","SOIL","OIL: CRUDE"
DeSmog was alerted by the Indigenous Environmental Network , which is en route to the spill site to gather more information. Stay tuned for updates to this post below.
**This story originally reported that Enbridge Line 67 tar sands pipeline suffered the leak, but Enbridge subsequently confirmed the spill was on Line 2. DeSmog regrets the error.**
Enbridge was warned earlier this month by the National Energy Board  that the company "is not abiding by federal safety standards at 117 pumping stations along its extensive crude oil network in Canada, putting the safety of the public at risk."
Similar to the controversial Keystone XL pipeline battle, Enbridge is currently seeking a Presidential Permit  from President Barack Obama to expand the capacity of the Alberta Clipper Line 67  where it crosses the international border. The Alberta Clipper pipeline currently transports approximately 450,000 bpd of crude oil from the Western Canadian Sedimentary Basin to the midwestern U.S.
The Calgary Herald reported in June 2011 about Line 2  (emphasis added):
"Enbridge's Line 6 pipeline, linking Griffith, Ind. to Sarnia, Ont., was shut down temporarily by American regulators last July following a rupture and spillage of more than 3 million litres of crude oil into the Kalamazoo River near Marshall, Mich. Three months later, the National Energy Board, which was monitoring the U.S. investigation, quietly ordered a 20 per cent pressure reduction on Enbridge's Line 2 Canadian pipeline, which links Edmonton to Superior, Wis., along sections that contained pre-1970s flash-welded pipe."
DeSmog has confirmed at least two previous spills on Line 2, one in Minnesota in 2004 that spilled over 1,000 barrels  and another in North Dakota in 2010 that spilled over 3,000 barrels .
Reuters reported in 2011  (emphasis added):
"Canadian regulators ordered Enbridge Inc (ENB.TO) to cut pressure on its 440,000 barrel per day Line 2 last October after raising concerns that the company might not be able to detect cracks in the oil pipeline. The National Energy Board's order remains in effect. It restricts the pipeline, which runs from Edmonton, Alberta, to Superior, Wisconsin, to operating at 80 percent of normal pressure, according to documents provided by the regulator. The board said it was concerned that Enbridge might not be able to consistently identify cracks in pipes laid before the 1970s using flash-welding techniques."
Here is the incident report on the Line 2 spill on April 23, 2013, pasted directly from the Coast Guard National Response Center  website:
NATIONAL RESPONSE CENTER 1-800-424-8802
*** For Public Use ***
Information released to a third party shall comply with any
applicable federal and/or state Freedom of Information and Privacy Laws
Incident Report # 1044848
*Report taken at 17:09 on 23-APR-13
Incident Type: FIXED
Incident Cause: EQUIPMENT FAILURE
The incident was discovered on 23-APR-13 at 15:45 local time.
Affected Medium: SOIL
SUSPECTED RESPONSIBLE PARTY
Organization: ENBRIDGE ENERGY
Type of Organization: PRIVATE ENTERPRISE
18060 203TH ST NW County: MARSHALL
City: VIKING State: MN
CHRIS Code: OIL Official Material Name: OIL: CRUDE
Also Known As:
Qty Released: 600 GALLON(S)
DESCRIPTION OF INCIDENT
THE CALLER REPORTED THAT A LEAK ON A PRESSURE TRANSMITTER RESULTED IN A RELEASE OF CRUDE OIL.
Type of Fixed Object: OTHER
Power Generating Facility: NO
Type of Fuel:
NPDES Compliance: UNKNOWN
Fire Involved: NO Fire Extinguished: UNKNOWN
INJURIES: NO Hospitalized: Empl/Crew: Passenger:
FATALITIES: NO Empl/Crew: Passenger: Occupant:
EVACUATIONS: NO Who Evacuated: Radius/Area:
Length of Direction of
Closure Type Description of Closure Closure Closure
Passengers Transferred: NO
Environmental Impact: UNKNOWN
Media Interest: NONE Community Impact due to Material:
CLEAN UP UNDERWAY
Release Secured: YES
Estimated Release Duration:
Weather: CLEAR, ºF
ADDITIONAL AGENCIES NOTIFIED
State/Local On Scene:
State Agency Number:
NOTIFICATIONS BY NRC
ATLANTIC STRIKE TEAM (MAIN OFFICE)
CGIS RAO ST. LOUIS (COMMAND CENTER)
DOT CRISIS MANAGEMENT CENTER (MAIN OFFICE)
U.S. EPA V (MAIN OFFICE)
MN BUREAU OF CRIMINAL APPREHENSION (OPERATIONS CENTER)
MN DEPT OF HEALTH (MAIN OFFICE)
MN U.S. ATTORNEY'S OFFICE (MAIN OFFICE)
NATIONAL INFRASTRUCTURE COORD CTR (MAIN OFFICE)
NOAA RPTS FOR MN (MAIN OFFICE)
NATIONAL RESPONSE CENTER HQ (AUTOMATIC REPORTS)
DOI/OEPC DENVER (MAIN OFFICE)
USCG DISTRICT 8 (MAIN OFFICE)
*** END INCIDENT REPORT # 1044848 ***