About Us

Legend Analytical | Full Service Environmental Laboratory

Quality You Can Trust

Quality Assurance

We provide a wide variety of services to a broad range of customers. Our Quality Assurance Program (QAP) is designed to assure the customer that our high quality standards are consistently applied to all services rendered by the laboratory.

Our QAP documents the quality system in accordance with industry specific guidelines to ensure the uniformity and consistency in the system. The QAP thoroughly addresses all of the requirements for all of the agencies it generates data for and all the accreditations and certifications it holds.

Our management and staff are committed and dedicated to the QAP in order to provide consistent quality to meet the data quality objectives of our clients.

Standard Operating Procedures

We have produced and maintained a number of procedures where specific methodologies are maintained to include the dedicated equipment and instrumentation utilized by LEGEND. SOPs are produced, updated, and/or maintained to include new equipment and instrumentation and to conform to all regulatory requirements. Existing SOPs are reviewed on an annual basis or as needed. The Quality Assurance Manager maintains all official copies and distributes copies to all applicable personnel.

Calibrations and Maintenance

To provide clients with the production of quality data, proper calibration and maintenance of all laboratory equipment and analytical instruments is incorporated into the daily process. LEGEND has implemented a preventative maintenance program to ensure that routine maintenance procedures are performed to prevent failure of instrumentation during use. The continual calibration process assures that equipment and instruments are within prescribed accuracy and precision limits. Utilizing manufacturers guidelines along with regulatory stipulations, analysts perform and document calibration and maintenance activities on all appropriate equipment and instruments.

Data Validation and Review

One of LEGEND’s quality control mechanisms is a validation and review process based on acceptance/rejection criteria. This process involves critical review of the data searching for the questionable values relative to the measuring tools available along with an evaluation of the quality control information relative to the sample data.


Training is an integral part of the QAP in the operation of an analytical laboratory. It is vital to ensure that all employees are knowledgeable in their areas of responsibility on a continuing basis. To accomplish this goal, the laboratory has a formal training program that covers all aspects of LEGEND’s operations, with strong emphasis on quality assurance, safety, and analytical procedures.

Internal Audit System

In addition to external audits conducted by regulatory agencies and clients, the QAP sets forth steps, procedures, and documentation for insuring the quality of analytical data. The system uses an Internal Audit Program, where the QA Manager performs periodic audits of records. Internal auditing procedures exist to identify areas of improvement in the QAP for continuous improvements.

External Quality Assurance

In order to validate the performance of an analytical laboratory, an ongoing program of blind performance evaluation (PE) samples are prescribed. The external PE sample program involves the analysis of blind samples to assess the continuing capability of each parameter for which samples are available. The blind samples are processed as a routine sample.

LEGEND participates in the American Industrial Hygiene Association-Laboratory Accreditation Program, LLC (AIHA-LAP,LLC) proficiency aptitude testing (PAT) program, AIHA-LAP, LLC Environmental Lead Laboratory Accreditation Program (ELLAP), and the National Voluntary Laboratory Accreditation Program (NVLAP Lab Code: 102081-0) samples.

Years of Experience

Analytes and Methods

Why Choose Legend Analytical

We were established in 1959 as Bolin Laboratories and have been serving industry, municipalities, and consultants in Arizona ever since.  In 2002, we were purchased by Legend Enterprises and operated as Legend Technical Services of AZ. 

We strive to both maintain our extensive laboratory experience and flexibility and to further it whenever possible. We are committed to continuous monitoring and improvement in the quality, value, and scope of the services which we provide. Our goal is to provide our clients with a diverse range of quality services at the best value.

60+ Years in Arizona

Decades of Experience Conveniently Located in Phoenix and Tucson 

Online Data Portal

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Research our extensive selection of high quality analytical services

Schedule of Analytes and Methods

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View our list of accreditations and be confident in the quality of our analytical services

About Us

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Send us a Message

Phoenix Facility

17631 North 25th Avenue, Phoenix AZ 85023

(602) 324-6100

Tucson Facility

4585 South Palo Verde Road, Suite #423, Tucson, AZ 85706

(520) 327-1234

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