ON-SITE ENVIRONMENTAL, INC., (OSE) is a Puerto Rico and US Virgin Islands based environmental services company committed to the environmental restoration of soils, groundwater and building contamination. For three decades, our main objective has been to eliminate contamination by using innovative environmental technology applications, which are environmentally safe and cost effective.
Since our beginning in November 1993, we have successfully completed numerous site investigations of soil, groundwater and building remediation projects .
Our practice is focused on its knowledge of site investigations, environmental restorations and related sciences. Our scope of services includes planning, investigations, analytical testing, consulting, permitting, engineering, design and construction phases.
Soil & Groundwater Remediation
In-situ Chemical Oxidation.
In-Situ Soil & Groundwater Remediation and Monitoring.
Free Product Recovery Systems
Underground Injection Control
Permitting and Compliance
Environmental Closure & Design
Sampling and Analysis
Waste Management & Engineering
Solid Waste, Management & Waste Characterization
Health & Safety
Site Evaluation and Clean-up
Environmental Data Management
Hazardous and Non-Hazardous Waste Transportation and Disposal
Phase I & Phase II Environmental Assessments.
Sampling & Laboratory Analysis
Management & Pollution Control
Indoor Air Quality
Landfill Closures and Post Closure Activities
Removal, closure, installation, cleaning, and maintenance of Underground Storage Tanks (UST’s)Above Storage Tanks (AST’s)
Permitting and compliance
Risk Assessment & RBCA Cleanups
Chemicals of Concern (COC’s)
Site Specific Target Levels (SSTLs) for remediation.
Environmental, Ecological, Human Health Risk Assessment
Analytical Fate and Transport Model
Risk-Based Corrective Actions for Petroleum releases and Leaking Underground Storage Tanks(LUST) sites. (ASTM 1739)
Site Conceptual Model (potential exposure pathways), for site receptors
Indoor Air & Surface Quality Testing, including
the SARS-CoV-2 (COVID-19) virus sampling and
Mold Assessment & Remediation
In-Situ Mold Remediation is revolutionizing the Mold Remediation Industry. The use of
specialized products and applications to clean and disinfect to eliminate the Mold Growth
Spores in the affected areas, ensure people to resume their routine in a safe ambience. All Mold
Assessment & Remediation are under the Institute of Inspection Cleaning and Restoration
Certification (IICRC), specifically IICRC S520 and the Standard Reference Guide for Professional
In-Situ Mold Remediation can be performed in houses, apartments, buildings, offices, theaters,
hotels and casinos, schools, boats or any contaminated area.
Indoor Air & Surface Quality Testing, including the SARS-CoV-2 (COVID-19) virus sampling and
Free-Phase Product Recovery
Installation, Operation and Monitoring of free-phase product recovery systems from monitoring wells
On-Site Environmental, Inc. holds a strict trust confidentiality agreement between its clients. You will have full advantage of our working alliances (worldwide known and among the best in the industry) that enable us to develop and test a workable solution to permanently eliminate the contamination from your site in a timely and cost-effective manner without compromising safety.
OSE/CDM-Smith has worked an agreement with the United States Environmental Protection Agency (USEPA) for Design and Engineering Services (DES). OSE/CDM-Smith has performed various Remedial Investigation/Feasibility Studies at various Superfund Sites in Puerto Rico. OSE as Team Subcontractor, provides Geologists, Engineers, Scientists and Environmental Technicians experienced in environmental investigations, remediation and documentation. CDM-Smith under DES contract prepares remedial investigations and design for the USEPA, Region 2 at various Superfund Sites in Puerto Rico.
Other works consists of locating and surveying installed monitoring wells, drilling, installation and purging of monitoring wells, collecting soil and groundwater samples and documentation, Site Specific Quality Assurance Project Plan, Site Specific Health and Safety Plan, GIS mapping and Oversight. Requirements such as quality assurance /quality control program are provided under on-site audits/inspections by EPA representatives. OSE furnishes highly experienced and qualified personnel, drilling equipment and supplies to support EPA Region II through the continuing Design and Services Contract Service Program in Puerto Rico and the U.S. Virgin Islands.