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Secondary Containment for Petroleum Tanks

Secondary Containment Tank Battery - Erie, Colorado

MATERIAL TYPE: Ecodur 201 Spray Liner & Geotextile 8oz
CLI completed this secondary containment system designed to provide spill containment of tanks holding petroleum product for an EnCana Tank Farm in Erie, CO.

CHALLENGES:    The system needed to be built mostly off-site and installed easily on-site. This required the use of lightweight geosynthetics that were also reliable, and met oil & gas specifications for secondary spill containment.    

The site location was within ¼ mile of an elementary school which created the need to keep truck traffic to a minimum.

PHASE 1 - GEOTEXTILE: A 20' x 80' piece of geotextile was laid out and sprayed with Ecodur 201 Spray Liner . After it completely dried it was rolled and delivered to the site. It was laid out on a properly prepared sub grade.

PHASE 2 - TANK PADS 4 tank pads consisting of 4” thick Etha-Foam were spray coated with the same Ecodur 201 Spray Liner. The pads were completed and delivered to the site where they were placed over the previously mentioned 20' x 80' sprayed textile. Construction of the perimeter metal walls, piping, access stairs and control features were finished and prepared for the final spray lining application.

PHASE 3 - SPRAY REMAINING AREAS OF CONTAINMENT The balance of the containment area was sprayed with Ecodur 201 Spray Liner to bond all elements into the existing under–pad lining. Ecodur has the unique ability to be re-sprayed onto existing liner at a later date without any preparation other than cleaning off residual dirt and mud.

CONCLUSIONS By using geosynthetic materials for this tank farm, the client eliminated the 12 truckloads of gravel that would normally be required for tank pads. Colorado Lining was able to design and execute a custom secondary containment liner solution that was efficiently installed and cost effective.

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