Philosophy & Mission




On-Site Environmental, Inc. (OSE) was founded in November 1993 in San Juan, Puerto Rico, the company is owned and operated by Ricardo N. Alvarez, P.E., R.E.M. OSE is the first company known for bioremediation services in Puerto Rico.

Since the beginning, OSE has successfully completed over 100 site investigations and soil and groundwater remediation projects in full compliance with Puerto Rico Environmental Quality Board and US Environmental Protection Agency.

OSE has a Memorandum of Understanding with the University of Puerto Rico, Mayaguez Campus (RUM) to promote research, development, and technology and contribute to the scientific and engineering development.

Since 1999, OSE is a Member of the advisory board of the “Peninsula de Cantera” Brownfields Pilot Program. Co-sponsored with Puerto Rico Engineers and Land Surveyors (C.I.A.P.R.) conference of: Bioremediation of Soil & Groundwater Contamination. Counselor of Bioremediation projects research and innovative remediation technologies development of EPA Brownfields Program.