Secondary Containment for Distribution Oil Filled Equipment
Oncor recognized a need for a Standard for Secondary Containment due to: Clean Water Act Federal Regulation 40 CFR 112 http://www.epa.gov/lawsregs/search/40cfr.html Oncor Standards states: When contamination of navigable water is possible from large oil filled equipment (greater than 1320 gallons per location) a containment system shall be installed. Contact Distribution Standards for details. Customer Requests Engineering environment Going Green Site evaluations are recommending Green innovations such as: Environmentally friendly paints, flooring, lighting, etc. Drought tolerant landscaping reducing water usage Turbidity Retention Reduce Liabilities
The objective: Design a Distribution Secondary Containment that would : Fit existing standard pad designs taking in account the largest transformer that would be placed on the pad and contain the total capacity of oil the equipment would hold.
The animation above illustrates the way in which our patented underflow systems achieve the most efficient capture of hydrocarbons and many other floating contaminants found flowing within storm sewers throughout the country and in our own neighborhoods. Traditionally, there have been three methods of separating oil from water: costly chemicals, applied heat, and residence or retention time (allowing enough area of space for the oil to naturally separate from the water over time). SCM-FLOW uses the retention time process by simply stacking the oil and water emulsion, facilitating natural separation. With SCM-FLOW, the oil becomes trapped behind the product, allowing the fresh water to pass through and move downstream. Our product is specifically designed for floatable contaminants, physically trapping 100% of the oil or floatable contaminants that come in contact with it. Once the oil has been separated or stacked behind the SCM-FLOW, acceptable industry practices can be utilized to remove the oil from the water, such as absorbent pads, cellules loose absorbents, skimming, or oil mops. SCM-FLOW is not designed for and will not effect water soluble contaminants. This design is easily included in new construction plans or retrofitted into an existing situation. Once the design criteria has been determined, we then prefabricate the management system to be installed. This plays a great deal in how our cost cutting measures work for you. SCM-FLOW has also been recognized and accepted as an Innovative Technology with the TCEQ.
Over 950 units have been installed throughout the Oncor Distribution and Transmission System. Secondary Containment should be considered around: Large bodies of water, rivers, creeks, etc. High auto or pedestrian areas Highly Sensitive areas Schools Daycares Hospitals Cemeteries Notable Oncor success stories are: Round Rock Decordova Sub
Containment for Distribution and Small Substation Transformers. Metal Vault Units Installed next to an existing transformer pad or pad poured in place. Designed to contain capacity of oil of the equipment by using galvanized railing on the concrete pad to direct oil and water into containment.
Metal Vault Unit Bolt Up Installation of Metal Vault Unit Site location prior to installation. Excavation next to existing pad site.
Metal Vault Unit Setting grade with sacrete. Containment placed in excavated area and will be anchored to the existing pad.
Metal Vault Unit Anchoring and Impacting containment to the existing pad with a rubber gasket seal between the two.
Metal Vault Unit Grounding of Containment
Metal Vault Unit Installing the SCM-FLOW unit within the Containment. Containment with installed galvanized metal grating, protective sealant between containment and pad and backfilling excavated area.
Metal Vault Unit Installation of galvanized metal railing around transformer pad diverting to the SCM-FLOW Containment.
Metal Vault Unit Complete installation of SCM-FLOW Metal Vault Unit.
Metal Vault Unit Complete installation of SCM-FLOW Metal Vault Unit.
Metal Vault Unit Pour additional pad to Containment Excavation for pad extension with smooth dowels in existing pad. Excavation for containment with sacrete sub grade.
Metal Vault Unit Set containment with Coal Tar Epoxy coating in excavated area.
Metal Vault Unit Set form and tie steel for pad extension to the containment.
Metal Vault Unit Pouring additional concrete to existing pad, extending pad to the Containment.
Metal Vault Unit Finish concrete. Forms will be removed from around poured area when concrete is set.
Metal Vault Unit Complete installation.
Containment for Distribution and Small Substation transformers. Moat Units Utilized on existing or new installations of transformers. Installed surrounding the entire transformer and pad. Lowers cost of concrete pad installation.
Moat Unit Discharge SCM-FLOW Unit SCM-FLOW Unit
Moat Unit Initial installation of Containment along with rebar.
Moat Unit Front view of window with rebar and piers. Containment is ready for concrete pad to be poured within the galvanized metal containment.
Moat Unit Pouring the concrete pad within the containment. Tapping the hook anchors.
Moat Unit Floating and finishing the concrete pad. Finished troweling the concrete pad.
Moat Unit SCM-FLOW Containment complete. Pad window is ready for grout and the transformer to be set.
Moat Unit SCM-FLOW Containment complete. Ready for final grade.
as a Solution for Distribution Secondary Containment Needs Meets Federal Regulations for Secondary Containments in 40 CFR 112. Customer requests O & M savings incurred by containing oil spills, reducing clean up cost by thousands of dollars.
Tax Relief for Pollution Control Property through the TCEQ. Oncor has experienced 100% of the cost being deferred in tax benefits. TEXAS COMMISSION ON ENVIRONMENTAL QUALITY APPLICATION FOR USE DETERMINATION FOR POLLUTION CONTROL PROPERTY TCEQ-00611 Potential rate base recovery.
Texas Eco Services, Inc. 5232 Saunders Fort Worth, Texas 76119 (817) 483-6167 - Office (817) 567-2931 -Fax www.scmflow.com Mark Stucks (214) 957-9093 - Mobile Mark@txeco.com John Mark Wilson (214) 957-9092 - Mobile John@txeco.com Randy Freelen (214) 957-9095 - Mobile Randy@txeco.com