A. The purpose of the project specified herein is to apply chemical root control agent to sanitary sewers, in order to kill the root growth present in the lines and to inhibit re-growth for two years without permanently damaging the vegetation producing the roots, or disrupting the wastewater treatment plant process B. The contractor shall apply the chemical sewer root control product to control tree roots in sanitary sewer lines for the City of Stillwater (Stillwater Utilities Authority). The chemical agent shall be an approved product and as specified in this document. Non approved products shall not be applied. C. The chemical agent shall contain a herbicide to destroy root tissue, a herbicide to deter re-growth and a foaming surfactant to deliver the herbicides to the target root growths. The chemical agent shall be currently registered with the USEPA and the OKDOA. The chemical agent will be applied as a foam, in strict accordance with the manner of application as described in this document. The foam shall be pumped under sufficient pressure and volume to assure that the entire sewer section is completely filled with foam, and to assure that the foam passes through lateral pipe connections to a distance of at least 5 feet up the service laterals...
