Monsanto

Year Submitted: 2003

Process: Stormwater

Industry: Chemical Manufacturing

Wastes Reduced: Wastewater

Equipment: Roofing

Location: Alvin, Brazoria County TX

No. of employees: 700

Contact: Bill Kibikas

Phone: (713) 331-2213 ext. 4533

Description:

Monsanto constructed a new hazardous waste landfill to meet the Minimum Technology Requirements (MTR) in the RCRA regulations. Plans are to normally construct and operate one cell at a time. Average life of a cell is expected to be 1 1/2 to 2 years.
As a result of the mixture rule, any rainwater that falls in the cell becomes hazardous. Average rainfall in this area is 52 inches per year. We estimated that approximately 1,000,000 gallons (4,170 tons) of rainwater would have become hazardous waste.

P2 Application:

Monsanto designed and built a metal structure and roof over the open cell. This structure will be moved to other cells as the original one is closed and new ones opened.

Environmental Benefits:

This project prevented the generation of hazardous waste. While the amount prevented will vary with yearly rainfall, on the average we estimate that approximately 4000 tons of hazardous waste generation will be prevented every year.

Details of Reductions

Additional Information :

Since we have facilities on site to treat/dispose of the contaminated stormwater, the incremental cost is relatively low. Additionally, the cost of moving the structure from cell to cell is relatively high. However, a 10-12 year payback is expected.

Source: TCEQ