J.F. Brennan Company’s internally developed and patented method of placing sand and gravel cover over in-situ materials without disturbance has redefined the environmental remediation industry. We have taken an innovative role in placing in-situ caps and sand covers by developing new placement methods that are long-lasting solutions to entrapping low-level contaminants. Like most things in nature, many of the substances that are considered contaminants break down over time. In low levels they are not harmful to human or animal health, but need to be contained to prevent migration. This is done with strategically placed caps that cover the in-situ material, creating barriers to prevent exposure to humans and wildlife, and allowing the material to continue breaking down to undetectable levels.
Methods of In-Situ Capping and Sand Covers
Broadcast Capping System (BCS™)
- Brennan has revolutionized the capping industry with its newly patented Broadcast Capping System (BCS™). – Learn More
- Mechanical placement of caps and covers occurs through the use of an excavator or a crane bucket, where material is typically transported to the marine plant via a barge. – Learn More
Armored Cap Placement
- Armored caps are becoming more popular when it comes to protecting newly installed sand caps from erosion and scour. This layer of armament increases the longevity of the cap, ensuring that contaminated sediments are not re-exposed by currents, wildlife, seiches, or human interference. – Learn More