Method of providing a containment reservoir

摘要: A containment reservoir for a liquid, such as petroleum oil, comprising, walled ground space or pit, opening upwardly, with the containing liquid impervious flexible liner generally following contour of space, and comprising layer pervious fabric material having on at least one its sides material, rubber, being operable to prevent escape through from space; means are provided coacting covered removing reservoir. covering filters anything, including passing into method forming predetermined width strips stock, retaining salvaging oil spilled along railroad track environment is also disclosed.