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Data Validation

D/Q Assessment

D/Q Objectives

E/I Assessment

 Lab Procurement

Field Audits

Q/A Project Plan

Data Management

Project Chemist

Litigation Support



Data Validation Services


Our diversified professional resources allow MCGI to meet or exceed any project challenges.  MCGI has the technical and scientific capabilities to provide timely, comprehensive, and cost-effective data validation and interpretation to our clients.  Additionally, MCGI has the management capabilities to provide responsive service as a prime consultant.


MCGI performs data validation for Organic, Inorganic, Dioxin/Furans, Radioactive, Wet Chemistry, Geophysical, Explosives, and several other types of analyses.  MCGI’s chemists have the experience with all media types including water, soil, sediment, air, wipe, solid, elutriate and tissue.


Prior to the data validation process, MCGI’s chemists get a complete knowledge of the Data Quality Objectives (DQOs) through the review of the Quality Assurance Project Plan (QAPjP) and/or client meetings/phone calls.  Chemists can therefore, focus on evaluating the usability of the analytical data for the purpose for which it was collected.


Due to the complexities and uniqueness of the data concerning specific samples and projects,

MCGI offers its clients different types of Data Validation service.  The validation is performed based on the validation technique and investigation level required for each individual project.


During the data investigation process, MCGI exceeds the required validation requirements.  MCGI applies the results of the validation process to perform a technical and scientific evaluation of the data.  When necessary, a  comprehensive investigation will be conducted for projects involved in Court Cases, Remediation, Risk Assessment, and any other sensitive issues that could impact the client interests at the client’s request.   In many of these cases, our responsibility toward our client's interests requires us to go beyond the USEPA National or Regional Functional Guidelines in evaluating and qualifying the data.  The USEPA National Functional Guidelines (NFG) were developed to facilitate that complicated Data Validation process.  Different regions of the USEPA have adopted more sophisticated measures and criteria, which do not oppose or dispute the NFG in evaluating and qualifying the data to protect their own interests.  MCGI follows the same path in protecting its client's interests.


MCGI employs all the resulting evidence for the issues mentioned above to produce an integral validation report that absolutely serves the client's needs and interests.

There are several guideline documents for performing data validation and each guideline has specific criteria for qualification. It is critical to be experienced using the appropriate guideline for each project.  MCGI’s chemists have been performing data validation with the different regional, state and program specific guidelines for many years. These guidelines include, but not limited to,:

1- USEPA Contract Laboratory Program (CLP) National Functional Guidelines for Organic and Inorganic Data Review

2- USEPA Region I, EPA-NE Data Validation Functional Guidelines for Evaluating Environmental Analyses

3- USEPA Region II Standard Operating Procedures for Data Validation

4- USEPA Region III Modifications to the National Functional Guidelines for Organic and Inorganic Review

5- USEPA Region IV Data Validation Standard Operating Procedure for Contract Laboratory Program Routine Analytical Services

6- Air Force Center for Environmental Excellence (AFCEE) Quality Assurance Project Plan (QAPP)

7- Naval Facilities Engineering Service Center (NFESC) Installation Restoration Laboratory Quality Assurance Guide

8- Department of Energy Hazardous Waste Remedial Actions Program (HAZWRAP) Requirements for Quality Control of Analytical Data

9- New Jersey Department of Environmental Protection (NJDEP) Quality Assurance and Quality Control.

10- Maine Department of Environmental Protection Methods for the Determining Diesel Range Organics (DRO) and Gasoline Range Organics (GRO)

11- Massachusetts Department of Environmental Protection Method for the Determination of Extractable Petroleum Hydrocarbons (EPH) and Volatile Petroleum Hydrocarbons (VPH)

We look forward to the privilege of serving your project needs.                                                                                   





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Data Validation Services  - Data Quality Assessment (DQA) Data Quality Objectives (DQO)  -  Environmental Impact Assessment (EIA)

Laboratory Procurement/Audits  -  Field Audits Quality Assurance Project Plan(QAPjP)

 Data Management   -   Project Chemist  -  Litigation Support   -  Training/Seminars


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