WORK PLANS, PERMITS & REQUIREMENTS
Cornerstone prepared work plans, obtained permits, removed overburden from top of tank, performing cleaning and certification, removed UST, performed sampling and met all closure requirements per the permit.
West Covina, CA
ABOVEGROUND WASH PAD & WASTEWATER OIL SEPARATOR
Cornerstone engineered, permitted and constructed an aboveground wash pad system capable of removing both solids and petroleum hydrocarbons from the washing of industrial concrete pumpers.
The project involved design, permitting with the Los Angeles County Sanitation District as well as construction of the pad, sump, piping and treatment unit system.