Veolia is a waste steam processor that recovers solvents from pharmaceutical and chemical plants. After processing the solvents are returned to Veolia’s client to be re-used in their process or burned as a boiler fuel blend for its BTU value. EI Associates was retained by the Veolia North America Middlesex, NJ plant to prepare As-Built Piping & Instrument Diagrams of Tank Farms 100, 200, and 400 as well as the “Process Area”. This required significant field time documenting the existing facility under adverse weather conditions followed by the subsequent preparation of more than 45 P&IDs. Our work included documenting over 30 vertical carbon steel tanks, 3 vertical stainless steel tanks, several 2 and 3 segregated compartmental horizontal tanks, pumping stations, piping manifolds, truck loading, rail loading/unloading, blanket and purge nitrogen distribution system, fire protection systems, and other processing equipment such as distillation columns, thin film evaporators, filters, and heat exchangers.