Case Studies

Stormwater - Case Studies

To Protect Long Island Sound, an Urban Connecticut Community Selects High-Tech Smart Sponge® Filters

The Filter Project is a part of Norwalk Public Work's stormwater management improvement program and involved fitting over 275 storm drains with high-technology filtration systems equipped with Smart Sponge® Plus. The Ultra Urban Filters performed extremely well: the average contaminant removal rate was over 75 percent, and the maximum removal rate was 99.9 percent. The first cleaning of the 275 catch basins yielded over 7.4 tons of trash, debris, leaves, and sediment – the weight of over six Ford Escorts. All this trash, and debris would have entered the Sound's recreational waters if it hadn't been captured by the filters.

Case Study: To Protect Long Island Sound, an Urban Connecticut Community Selects Antimicrobial High-Tech Smart Sponge® Plus for Catch Basin Filters

Gas/Fuel Services - Case Studies

Pilot Travel Centers

At a Pilot store, (1) DI2020N UUF filter was installed at the catch basin stormwater drain on the property. The UUF was suspended from a galvanized steel mounting collar designed to drop into the catch basin drain to protect against accidental spills of gasoline, and related hydrocarbons. Additionally, the UUF is designed to capture sediment and debris common to stormwater runoff at gas stations and fueling facilities. In May, 2010 AbTech was advised by Pilot of a gasoline spill at the store and requested replacement of the UUF.

Case Study: Pilot Travel Centers Knoxville, Tennessee

Airports - Case Studies

Pope Air Force Base

At Pope, 135 Ultra Urban® Filters and 135 galvanized steel filter mounting collars were installed at 5 different aircraft ramp locations throughout the nearly 500 acre flight line. The filters were engineered to drop into each drain opening, were installed without any modifications to the flight line infrastructure and provide high removal efficiency of common hydrocarbons (jet fuel, grease, oil, diesel fuel, gasoline). In addition, the filters met all requirements for easy maintenance and service. Base environmental managers are pleased about the absolute filtration ability of the filters and their ability to protect the local water shed environment.

• Case Study: Pope Air Force Base, North Carolina
• Case Study: East Coast International Airport
• Case Study: Large International Airport
• Case Study: Large Regional Airport
• Case Study: Major International Airport
• Case Study: Midsize Airport

Beaches - Case Studies

The City of Long Beach Successfully Deploys Progressive Stormwater Solution to Help Prevent Harmful Bacteria from Contaminating City Beaches

The City of Long Beach sought to exceed its compliance with local, State and Federal water quality guidelines as mandated by the Federal Clean Water Act and RWQCB-issued TMDLs, initiated a two-phase program. In the first phase, the City deployed 1,318 UUF catch basin insert filters in 328 catch basins (approximately 10% of the citywide total of 3,300). In the second phase, the City installed an additional 529 inserts in 175 catch basins for a total of 1,904 inserts in 503 catch basins (15% of the citywide total). The City gave installation priority to drains that are tributary to waters used for recreation. A wide variety of installation locations were selected based on land use, projected pollutant loads and beneficial use designation.

Case Study: The City of Long Beach Successfully Deploys Progressive Stormwater Solution to Help Prevent Harmful Bacteria From Contaminating City Beaches