GPR UXO Detection, When Magnetometry Just Won't Do

Article by Guest Author Maarten Bosma.

In the field of UXO detection, the most common detection technique in The Netherlands is magnetometry. The advantage of this kind of survey is that in the right conditions you can get quick results about the possible presence of UXO in a location. But as I have explained, you need to be working in the right conditions to get the best results. When you need to perform a survey on a location close to a building, for example, it would be very difficult, if not impossible, to use the magnetometry techniques.

To get some results in those locations we need to use different techniques and one of those techniques is GPR. In this article I will show you some brief results of a GPR test we performed with the IDS Himod. This is a dual frequency system with a 200 and 600 Mhz antenna.

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Dog Sniffs Out 19th Century Mortar

Dover, United Kingdom Sign this furry friend up for the bomb squad! A man was walking his black Labrador, Barnes, on the shore of Sandwich Bay when the dog sniffed out on old mortar shell, and it isn't the dog's first munition find!

The shell, believed to be a 25-pound, high explosive shell dating from around 1890, was disposed of at the site by the Royal Navy Southern Diving Unit from Portsmouth. Barnes' previous finds include some 40-pound black powder shells, sniffed out in the same area last March.

Beach Dog Find

British Police Warn Residents to Watch For UXO

British Poster

Devon, United Kingdom Police launched a public awareness campaign to warn residents about the potential dangers from UXO. Recent ordnance finds along the beaches on South Hams, Slapton Sands, and Torcross have prompted the campaign. Police are warning residents to be especially careful after large storms as ordnance has the potential of washing ashore.

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UXO Oversight Committee Blows Through $44M

Honolulu, Hawaii In 2004, the State of Hawaii took over management of Kaho'olawe Island from the U.S. Navy following a large scale UXO remediation effort which at the time, was the largest civilian UXO project. Along with the management, the Navy also provided approximately $44M in funds appropriated over several years for the long-term care and management of the Island.

Management responsibilities fell onto the Kaho'olawe Island Reserve Commission (KIRC), the organization that provided "oversight" for the state during the UXO clearance effort conducted by the Navy. The management efforts included tracking and recording UXO sightings for the Navy to remove on an as-needed basis.

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Incinerator Slowly Makes Its Way To Camp Minden

Camp Minden, Louisiana The Louisiana Department of Transportation (LADOT)has issued a warning to drivers about traffic delays expected during the delivery of the Controlled Burn Chamber (CBC), an incinerator which will be used to dispose of explosives at Camp Minden. The CBC, which began its journey to the site on Monday, February 8, is scheduled to arrive on Thursday, February 11.

The incinerator, which measures 182 X 27.5 X 26 feet is only expected to travel at a maximum speed of 15 mph. Traffic in the areas along the route will see major slowdowns and stoppages with high congestion during the chamber's movement. LADOTD asks drivers avoid the areas if possible during scheduled transport times. For details of the route and roads affected visit //www.google.com/maps/.

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Camper Finds Ordnance-Like Item

Knight's Key, Florida U.S. Navy EOD from Mayport, FL responded to reports of a suspect munition in the shallow waters near a City of Marathon campground. A man notified the Monroe County Sheriff's Office when he discovered what he described as "a torpedo-like device in the water".

Nearby Knight's Key campsites were evacuated for several hours while EOD investigated the object. EOD took possession of the unidentified device shown below for proper disposal.

unknown item

Historical Vignette The 43d Anniversary of the Roseville, CA, Ammunition Train Disaster

By UXO Guest Writer, LTC Danny M. Johnson, (USA Ret)

April 28, 2016 will be the 43d anniversary of the Southern Pacific, Roseville, CA rail yard blast, during which catastrophe struck when 18 of 21 rail cars loaded with 7,056, Mark 81, 250lb bombs destined for the Naval Weapons Station, Concord, CA for further naval shipment to Southeast Asia exploded in the then Southern Pacific Railyard.

The train arrived from the Naval Ammunition Depot at Hawthorne, Nevada at the Roseville Yard entrance at 0605 and was arranged in the westbound division yard by 0630. The train was too long for the yard, so the forward cars (which are the ones that exploded) were set on a track isolated from the remaining three cars, which were loaded with more than 1,000 bombs. These three cars were saved with just minor damage.

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