OHC approaches every project using the tools of optimized project management

Environmental Engineering

  • Emergency response to fuel and chemical spills
  • Environmental Compliance Audits
  • Environmental Pre-Demolition Surveys
  • Hazardous Materials Cleanup and Disposal
  • Hazardous Waste Control and Minimization
  • Permitting and Licensing
  • Phase I Site Assessments
  • Phase II Investigation
  • Phase III Design, Remediation and Resolution
  • Phase IV Restoration Management
  • Radon Testing, Phase I, II and III
  • Remediation Action Plan Design and Approval
  • Remediation of Soil and Groundwater
  • Risk Management Plans
  • Site Assessments/Tank Closure Assessments
  • Spill Prevention, Control and Countermeasure (SPCC) Plans
  • Storm Water Runoff Plans
  • UST/AST Assessment, Maintenance, Monitoring, Removal and Closure
  • Wetlands Mitigation Survey

Industrial Hygiene

  • Certified Industrial Hygiene Services
  • Radon Sampling & Testing
  • Indoor Air Quality Evaluations
  • OSHA Compliance Audits
  • Health and Safety Plans
  • Employee Exposure Assessment
  • Expert Witness Testimony

Laboratory Services

OHC operates a NVLAP accredited lab for analysis of bulk samples for asbestos using Polarized Light Microscopy and EPA method 600/M4-82-020.

If you have a priority sample, a high profile sample or set of samples, or if you simply wish to have your samples analyzed by an experienced microscopist specialist then contact the OHC lab for rates. If you have an emergency situation and need a sample analyzed immediately please call Jim Rizk at 813-626-8156.

On-Site Training

OHC provides On-Site Training by expert trainer.

Lead Consulting

  • Demolition Testing and Design
  • Laboratory Analysis
  • Monitoring
  • Paint, Water and Soil Testing
  • Project Management, Supervision, & Remediation Design

Process Engineering

  • Computer Simulation Programs
  • Computer Generated Dispersion Modeling
  • Emergency Response


  • Air Monitoring, Management & Supervision
  • Contract Administration
  • Expert Witness Testimony
  • Facility Surveys and Assessment
  • Operations and Maintenance
  • Remediation and Response Action Design
  • Certified Training Provider

Indoor Air Quality

  • Indoor Air Quality Investigation & Resolution
  • Biological & Mold Sampling & Analysis
  • Expert Witness Testimony

The investigative process is never a routine sampling procedure, and every case must be treated individually. OHC has assembled a team of experts to address IAQ issues. The team consists of a Certified Industrial Hygienist (CIH), a Registered Architect (RA), a Certified Indoor Environmentalist, and senior industrial hygienists with a combined experience of 80
years in IAQ investigation and resolution.

Asbestos Consulting Services

OHC is responsible for site and facility surveys, or verification of existing surveys, prior to acquisition, renovation, or demolition; remediation design; contract administration; and construction supervision and monitoring. OHC has also acted as the construction manager on several projects, as a turnkey operation for the remediation database to track their inspections and periodic training.


OHC works closely with architectural firms providing them with proper abatement specifications written once the consultation has commenced.

Lead Surveys

OHC has always utilized state-of-the-art techniques and procedures to identify, assess, and analyze for lead. Additionally, OHC utilizes only American Industrial Hygiene Association and environmental lead proficiency analytical testing accredited laboratories for all sample analysis.


OHC makes use of the Niton XL309 and XLP 300A instruments in the field to measure for lead-based paint and follows these results up by bulk sample analysis, when necessary, utilizing atomic absorption spectroscopy.

Environmental Compliance Audits

Businesses, corporations and government entities that engage in industrial activities most likely will have an environmental impact and thus need a system to ensure environmental stewardship and compliance are part of the fabric of doing daily business. OHC follows the guidelines and procedures developed by the EPA under the Office of Pollution Prevention and Toxics (OPPT). In addition, OHC advocates using the ISO-14000 series of standards and requirements as guidelines to developing effective environmental management policies and systems.

Chemical and Fuel Spill Response & Evaluation and Clean-Up Management

The release and spill of hazardous chemicals, heavy metals, VOC’s, and pesticides can pose a health risk to workers in the immediate vicinity and to the environment. OHC’s staff has responded to chemical and petroleum releases. In each case we have evaluated the spill, planned the clean up, and remediated the contamination. OHC’s Project Managers and Engineers will ensure that the proper steps are taken to protect the public and any workers involved and then manage the effective cleanup of any spill or release. OHC’s staff is well versed in the various containment methods used in petroleum, mercury, acid, and other hazardous material release situations. All of our key staff has OSHA HAZWOPER training. This training also includes operations at sites covered by the Resource Conservation and Recovery Act (RCRA) and at uncontrolled hazardous waste sites. OHC is thoroughly familiar with the requirements for working at Treatment, Storage, and Disposal facilities (TSDs) regulated by EPA 40 CFR 260 to 282. In addition, we have received training and have experience with the Department of Transportation requirements for transportation of hazardous materials.

Environmental Site Assessments

OHC follows the ASTM E 1527-00 and ASTM E 1528-00 standards in the completion of the Phase I Environmental Site Assessments and other assessments for the transaction screening process. We follow these standards as they were written to establish good site assessment practices to qualify for the innocent landowner defense amendment as mandated by CERCLA liability to satisfy the due diligence responsibilities of participants in commercial real estate transactions.


OHC has completed environmental audits of large acreage projects and is thus familiar with the necessary steps to ensure that the client has exercised proper due diligence. In particular, OHC ensures that adequate limits are used in the radius of search. OHC determines the search distances from the property by taking into account the geometry and hydrology of thesites. For example, elongated geometries require special approaches to ensure an adequate distance outside the subject area is considered. Simply using the center point may miss potential problem areas.


A qualified OHC environmental professional schedules and completes interviews with the present owners and occupants. The purpose of the interviews is to obtain current and past contamination information relating to the site. Review of aerial photographs to examine past land use, review of local, state and federal records (UST, CERCLIS, NPL LUST, etc.), review of use of adjacent sites, review of potential receptors and wetlands. Existing structures, tell tale vents or pads or any other structure that may provide information regarding the possible use of hazardous material use will be evaluated. Individuals in the surrounding area will also be interviewed to provide as much information as possible regarding the history of the potential site. The field visit by the OHC environmental professional will also encompass the nature of the surrounding area and the various facilities that have a potential to impact the site.


If during these reviews, OHC finds that there is a potential for uncontrolled hazardous waste on the site, a more detailed Phase II is recommended. This phase requires collection of field data using soil borings, well installation, soil and groundwater sampling, use of direct push technologies and waste characterization. Once the extent of contamination is defined, OHC can perform a Phase III design of a remedial action to correct the problem. OHC can also manage the remediation of a hazardous waste site. OHC completes one to two studies per month from Phase I to Phase III for many tank removal projects.

Special Projects

  • Noise
  • Chemicals
  • Radiation
  • OSHA Compliance for Medical/Laboratory Settings