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Objective:
The objective of this project is to demonstrate the low-cost structural control of storm water runoff from industrial or military operations. Military installations must comply with National Pollutant Discharge Elimination System (NPDES) storm water permit requirements. Implementation of pollution prevention Best Management Practices (BMP) alone may not be adequate to comply with discharge requirements. Many installations also will be affected by the proposed U.S. Environmental Protection Agency Total Maximum Daily Load (TMDL) rule. TMDL is the amount of a pollutant that a stream, lake, estuary or other water body can accept without violating state water quality standards. Thus, military installations' point and non-point sources may be subject to discharge allocations set by TMDLs. Conventional treatment processes, such as those used for treating sanitary wastewater, can remove pollutants from storm water. However, such processes are usually too capital- and maintenance- intensive to be cost effective.
Technology Description:
Innovative filtration trench systems will be demonstrated for the removal of metals and suspended solids in storm water runoff from the Navy Regional Recycling Center (NRRC) in San Diego and from a rifle range at Fort Stewart, Georgia. The filtration trench system is an example of Low Impact Development (LID) storm water treatment technologies. LID is a storm water management method that attempts to alter hydrologic functions of the site to mimic natural filtering processes, thereby meeting environmental regulatory requirements. Filtration trenches mimic natural sediment traps to capture contaminated particles. Filtration trenches have been used in the past to treat runoff from shopping center parking lots, residential areas, and other non-industrial applications. The application primarily has been to reduce runoff volume and to remove suspended solids. In these demonstrations, the design has been modified to allow the use of special adsorbent materials to increase the removal efficiency of metals. It is the combination of simple, low cost, storm water treatment technology (filtration trenches) with engineered materials (adsorbents) specifically selected to remove targeted industrial pollutants that make this technology innovative.
Expected Benefits:
The expected benefit to the Department of Defense (DoD) is compliance with more stringent storm water discharge regulations. LID technologies will help DoD meet current and future NPDES and TMDL requirements in a cost-effective manner, resulting in a reduction of metals, sediment, and other pollutants entering the nation's rivers, lakes, and harbors. In addition, many LID technologies improve the aesthetics of a site, and these practices can be integrated into the building systems, landscape, and infrastructure - allowing for cost savings by combining construction and design projects. LID projects also can be constructed incrementally, thus reducing the need for large capital outlays.
(Anticipated Project Completion - 2007)
Principal Investigator:
Mr. Gary Anguiano
Naval Facilities Engineering Service Center
1100 23rd Avenue
Port Hueneme, CA 93043
Telephone: (805) 982-1302
Fax: (805) 982-4832
E-mail: gary.anguiano@navy.mil
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