SRS™ Specifications

Terra Systems, Inc. SRS™ Emulsified Vegetable Oil (EVO) Substrate United States Patent# RE40,448 The anaerobic bioremediation process uses either native or introduced microorganisms to degrade chlorinated solvents such as tetrachloroethene (PCE) and trichloroethene (TCE) to innocuous end products including ethene and ethane. An organic substrate must be added to the groundwater to generate reducing conditions and provide the necessary carbon and hydrogen to support biodegradation of the chlorinated solvents. The organic substrate can be a slow release substrate like Terra Systems’ SRS™ emulsified vegetable oil substrate. SRS™ is designed to release bio-available hydrogen over a period of 3 to 5 years thus enhancing the long-term anaerobic biodegradation of the chlorinated solvents. SRS™ optimizes the naturally occurring biodegradation system by supplying the rate limiting factor (in this case hydrogen) in the degradation of VOC’s, certain pesticides/herbicides, perchlorate, and immobilization of certain metals (Cr, As, and some radionucleides). SRS™ Substrate Specifications Terra Systems, Inc.’s manufacturing facility is configured to allow us to provide our customers with custom blended substrate packages without a cost premium. The basic SRS™ package contains the following components: Ingredient CAS # Percent Hazardous Food grade edible oil, emulsifiers and proprietary nutrient package containing nitrogen, phosphorus and vitamin B12 Mixture 50-70 No Sodium Lactate 72-17-3 <5 Yes Water 7732-18-5 30-50 No KEY BENEFITS OF SRS™ Emulsified Vegetable Oil (EVO) Substrate Include: ? Promotes biodegradation of PCE and TCE to non-toxic end products ? Small droplet size is ideal for maximum radius of influence in the formation ? Low cost ? In situ vs. Ex situ application minimizes site disruptions ? Slow release formula eliminates continuous substrate additions ? SRS™ contains only non-toxic food grade materials, which results in green, sustainable remediation ? Can be used as a PRB to cuts off plume migration ? Effective in source zones ? Reduces treatment time from decades to months and years As a result of its low viscosity, small droplet size and longevity, SRS™ is an ideal substrate for injection using direct-push technology. The low viscosity allows a greater volume of SRS™ to be applied in a shorter period of time and increases the substrate delivery radius per point. This results in fewer direct push delivery points and overall shorter delivery time requirements per site. Terra Systems, Inc. has applied this technology at military bases, dry cleaners and manufacturing sites throughout the USA and in Brazil and Japan. Some of the sites where the technology has been demonstrated include the Dover Air Force Base (AFB) in Delaware, Columbus AFB in Mississippi, Camp Bullis in Texas, Altus AFB in Oklahoma, Arnold AFB in Tennessee, Edwards AFB in California, Photocircuits in NY, SABRE in England and Microtronics in New Jersey. For more information contact: Dick Raymond or Michael Free Terra Systems, Inc. 1035 Philadelphia Pike Suite E, Wilmington, DE 19809 Tel: (302)798-9553 e-mail: draymond@terrasystems.net or mfree@terrasystems.net On the Web@ http:/www.terrasystems.net/