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Environmental Quality Assurance
     
     
       
     
 
 

Quality Assurance Program

At QC Laboratories, dedication to quality is inherent in everything we do. We understand that our data is used by clients to make rational, confident, cost effective decisions regarding assessment and resolution of their environmental compliance requirements. We appreciate the trust our clients place in our services, and therefore strive to ensure the highest standards of quality and reliability. Our Quality Assurance Program establishes the necessary organization of procedures and personnel to help us continually deliver dependable results.

We prove our dedication to quality by meeting and exceeding national standards and by constantly refining our system of Quality Assurance. Our protocols and procedures are based primarily on EPA guidelines for the analysis of multimedia samples for a broad range of inorganic, organic, microbiological and biological constituents. We value the trust you place in our service and we strive to provide you the comfort of knowing that the data you receive is of highest integrity.

Quality Assurance Policy
Analytical Systems Process
Quality Assurance Objectives for Analytical Data
Internal Quality Control Checks
 

Quality Assurance Policy

Ethics and Integrity
QC Laboratories. is committed and dedicated to providing only the highest quality analytical data possible to its clients. Data produced, managed and reported must meet the requirements of its clients and comply with both the letter and spirit of the various municipal, state and federal regulations and guidelines. Protocols and procedures are based primarily on EPA guidelines for the analysis of multimedia samples for a broad range of inorganic, organic, microbiological and biological constituents. QC's quality program encompasses the requirements for producing and reporting data of known and documented quality to its clients. It is understood that data is used by clients to make rational, confident, cost effective decisions regarding assessment and resolution of their environmental compliance requirements.

Analytical Systems Process

Chain of Custody
The chain-of-custody provides a record of sample handling history beginning with sample collection and continuing through laboratory receipt and distribution to individual departments for analysis. QC also has the ability to provide a complete internal chain of custody record including handling by individual analysts through final analysis and disposition of the samples upon request.

Analytical Procedures
Analytical methods employed by QC Laboratories are most often dictated by the regulatory application of the sample data. Special requests from clients to use methods other than those routinely employed are handled on a case-by-case basis. Analytical SOPs are prepared to encompass the requirements of each of the regulatory methods and to detail more specifically what the laboratory is actually doing, especially in cases where established EPA methods allow for flexibility or a choice of more than one option.  

Quality Assurance Objectives for Analytical Data

QC Laboratories' Quality Assurance Program has established monitoring systems for all operational functions to assess performance against established regulatory requirements with the goal of providing legal and scientifically valid results to our clients. One of the most significant aspects of the program is the performance and review of quality control samples associated with each analytical batch.

Specific criteria for assessment of precision, and accuracy are set forth in laboratory SOPs. These procedures conform to the requirements of applicable regulatory programs, including but not limited to the Clean Water Act (CWA), Safe Drinking Water Act (SDWA) and the Resource Recovery and Conservation Act (RCRA). Where not dictated by regulation, criteria for accuracy and precision of each test method are based on actual laboratory performance in the specific sample matrix, and are designed to conform to the standards of the National Environmental Laboratory Accreditation Conference (NELAC). When samples are utilized as matrix spikes and spike duplicates, they are rotated as available among the laboratory base of clients. Some of the more common quality indicators used routinely in the laboratory are listed below.  

Internal Quality Control Checks

Quality Control (QC) analyses are essential for continual assessment of analytical procedures. QC analyses include the use of blanks, internal standards, check standards, matrix spikes, duplicates or matrix spike duplicates, check samples (spiked blank samples), and Proficiency Testing (PT) samples. Proper use of this data helps to ensure the production of legally valid analytical results. In addition, they provide constant, documented evaluation of acceptable analytical method performance.

Quality Assurance Audits
The correct and complete implementation of the programs described in QC's Quality Assurance Program Plan (QAPP) is confirmed periodically by federal and state auditors as well as outside clients. In addition, internal audits and assessments are conducted periodically of all analytical systems by the Quality Assurance Director. Findings and recommendations of each internal audit are documented and reported to the appropriate Laboratory Manager(s), the Laboratory Director, and President.

AOAC Proficiency Testing
USDA Testing Program
NELAP PT Program

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