Business Details
28 Years
experience
Trusted Pesticide Residue Testing Services in Sherwood, OR
Pacific Agricultural Lab has been at the forefront of pesticide residue analysis for over 25 years, combining advanced methodologies with decades of expertise to deliver accurate, defensible results. Our ISO/IEC 17025:2017-certified laboratory in Sherwood, Oregon specializes in analyzing residues in agricultural commodities, soil, water, and processed foods, ensuring compliance with global regulatory standards. We prioritize integrity and communication, offering tailored reporting that includes Maximum Residue Level (MRL) comparisons for major export markets.Our team partners with growers, processors, and certifiers to address complex challenges in food safety, including specialized testing for organic certification and hemp production. With a commitment to analytical excellence and customer-centric service, we support informed decision-making for safe, quality food supply chains.
Services
MRL Analysis
Plant Tissue Testing
Pesticide Screening
Soil Residue Testing
Water Contamination Analysis
Details
- Year established: 1998
Highlights and features
- We offer over 25 years of specialized expertise in pesticide residue analysis.
- Our ISO/IEC 17025:2017-certified lab ensures globally recognized quality standards.
- We provide defensible Limits of Quantitation (LOQ) validated against specific commodities.
- Our reporting includes MRL comparisons for top 10 global export markets.
- We maintain partnerships with USDA National Organics Program and Northwest Horticultural Council.
Associations and certifications
- ISO/IEC 17025:2017
Services
MRL Analysis
We analyze pesticide residues in agricultural commodities to determine compliance with Maximum Residue Levels (MRLs) for domestic and international markets. Our testing covers fruits, vegetables, processed foods, and hemp products using validated methods. Results include comparisons to MRLs in top global export markets, supporting regulatory compliance and certification requirements.
Soil Testing
Our soil residue screening identifies over 230 pesticide compounds using modified EPA methods, aiding land transition assessments and environmental remediation. This service supports organic certification, hemp cultivation planning, and phase one cleanup projects with comprehensive multi-residue analysis.
Water Testing
We screen surface and groundwater for pesticide contamination using broad-spectrum methods, detecting unknown residues in irrigation wells or stormwater runoff. This service supports environmental compliance and risk assessment for agricultural and industrial sites.
Plant Tissue Analysis
Our tissue testing identifies herbicides and pesticides in leaves, ornamental plants, and weeds to investigate spray drift, overapplication, or crop stress. Specialized profiles cover glyphosate, phenoxy acids, and other herbicide classes for agricultural diagnostics.
Organic Certification Testing
We perform USDA National Organics Program (NOP) residue screens covering 85% of prohibited substances, supporting certifiers and growers. Testing includes investigations for cross-contamination and compliance verification for organic production standards.
People
Robert Wiebe
CEO of Matrix Sciences
Robert Wiebe leads Matrix Sciences' expansion of agricultural testing services, focusing on network growth and analytical excellence. He oversees strategic acquisitions like Pacific Agricultural Lab to enhance nationwide capabilities.
Steve Thun
Founder & Laboratory Director
Steve Thun founded Pacific Agricultural Lab and directed its growth as a premier residue testing facility. He now contributes expertise to Matrix Sciences' national expansion while maintaining technical leadership.
Questions
What types of samples can you test for pesticide residues?
We test agricultural commodities, soil, water, plant tissues, processed foods, and hemp products for over 230 pesticide compounds.
Do you provide MRL comparisons for export markets?
Yes, our reports include MRL comparisons for the top 10 global export markets for most commodities.
Are your testing methods ISO certified?
Our laboratory operates under ISO/IEC 17025:2017 certification for quality management systems and analytical integrity.
Can you test for organic certification compliance?
We perform USDA NOP residue screens covering prohibited substances and support organic certifiers with audit-ready documentation.
How quickly can I get test results?
Standard turnaround times apply, with priority rush service available for urgent pesticide residue analysis needs.
Do you handle specialized testing for hemp production?
Yes, we screen over 200 compounds in hemp tissue and products, following USDA NOP guidelines for prohibited pesticides.