A collision between a tanker and two barges occurred in the Houston Ship Channel on Friday, May 10, 2019.  The tanker collided with one of the barges, resulting in the second barge capsizing.  The barge damage resulted in a spill of 9000 gallons of flammable material called reformate, which is a gasoline blend.  Six oil skimmers have recovered 376 barrels of product-water mixture.  More than 20,000 feet of spill containment boom was deployed to contain the spill and help protect vulnerable areas.  Salvage teams have secured the two barges and all remaining product has been removed from the damaged barges.  The spill has resulted in some wildlife and fish deaths, and seafood warning was issued by the Texas Department of Health.  Air quality tests in the area have resulted in no actionable levels.  The Galveston Bay Foundation will continue to take water samples for testing.  At this time, the Houston Ship Channel has resumed full operation. 

Texas Boom Company has produced a number of silt curtains recently from dredging projects across the US.  As you would expect, as a dredging operation takes place, mud and sand are stirred into the adjacent water.  This material remains suspended in the water until it washes away or settles back to the bottom.  Dredgers use floating silt curtains (turbidity curtains) to keep silk and sediment from migrating while suspended.  This helps to avoid muddying local waterways during the dredging process.  Whether used to meet regulatory requirements or simply as a courtesy to others, silt curtains are effective in helping to reduce sediment runoff. 

Three recent projects are highlighted below, selected because our customers were kind enough to share pictures of the silt curtains in use.  

The first project was a roadway construction project here in Texas.  As can be seen in the image, the silt curtain is effective in keeping the sediment from escaping the construction area.  Because the silt is contained, it will eventually settle in place, leaving the area water clear and free of an abundance of eroded mud. 

Cattail Marsh is a 900 acre wildlife area located in Beaumont, Texas.  This marsh is located adjacent to Tyrrell Park and serves as a component of the waste water filtration system for the city.  The marsh features a 520 foot boardwalk that was installed in 2016 at a cost of $285,000.  Cattail Marsh and the surrounding area support a wide variety of local wildlife and is a popular bird watching site. 

As is common in many bodies of water in the area, Water Hyacinth has taken root and spread rapidly across the entire marsh.  Water Hyacinth is an invasive plant species that is recognized as one of the fastest growing plant species in the world.  The plants primary means of reproduction are runners that eventually form sister plants.  It also produces large volumes of seeds that remain viable for up to 30 years.  Because of its ability to rapidly reproduce, coverage areas can double in periods as quickly as two weeks.  

If left unchecked, Water Hyacinth can completely cover a body of water, resulting in reduced water flow, complete blocking of sunlight to submerged plant species, and a depletion of oxygen from the water itself.  These results can have a major detrimental impact on plant and animal species.  This plant is difficult to control once introduced to a lake, pond or stream.  Water Hyacinth has no know direct food value for wildlife.  

Whether you are installing oil spill containment boom or turbidity curtains, these products are only one of the items you will need for a successful deployment.  Factors such as wind, tide levels, currents, boat traffic, and safety issues are all considerations when developing your plan. Texas Boom Company offers a wide range of accessories that can make your installation easier, safer, and more effective.  Anchors, lines, buoys, lights, beach stakes, and tow bridles can all be important additions to a successful installation.  

Installation layouts can result in varied layouts and patterns to best accomplish the intended goal of containing material or silt.  These same considerations come into play with traditional oil spill containment boom, sorbent containment boom, inflatable containment boom, shore barrier boom, or permanent type fence boom.  Texas Boom Company offers installation instructions and a number of diagrams that show different layouts for containment boom installation or turbidity curtain installation. 

Layout:

On the early morning of September 8, the MV Golden Ray capsized off the coast of Brunswick, GA in St Simon Sound, approximately 80 miles south of Savannah.  The exact cause of the accident has not been finally determined.  Initially, four of the twenty-four individuals on board were trapped.  They were subsequently rescued safely.  However, the ongoing environmental hazards continue now over a month later. 

Fuel and oil continue to leak from the vessel.  When the accident occurred, the ship contained roughly 300,000 gallons within its tanks.  To date, 220,000 gallons have been successfully pumped off.  Unfortunately, there have been ongoing oil slicks located in the area, as well as oil coating the plant life along shorelines.  Thousands of feet of oil spill containment boom have been deployed in the area to control the spread of the hydrocarbons and protect the shorelines.

The US Coast Guard is leading the Unified Command, a joint recovery and salvage effort between the state of Georgia, the USCG, and the shipping company Hyundai Glovis’ contractor, Gallagher Marine Systems.  Crews of up to 400 people and 70 vessels are participating in the clean-up and recovery effort. 

As the recovery in the Bahamas continues following the damage caused by Hurricane Dorian, it offers a lesson in the value of preparedness.  Companies and governments around the globe work to balance the expense and efforts to plan for all contingencies against the threat of a wide variety of disasters and the resulting damage.  With regard to oil spills, there is no doubt that the damage can vast and extensive.  It highlights the need to have oil spill response equipment on-site and ready for immediate deployment.  Waiting to bring oil spill containment boom, oil skimmers, and other equipment in after the fact, especially when infrastructure may be damaged and access severely limited can often compound an already serious problem.  The sooner the equipment is deployed after a spill, the more effective the containment and recovery efforts will be.   

Photo Credit:  Ramon Espinosa/AP