Outsource vs In-House Environmental Testing
Environmental testing is often outsourced because regulated reporting usually requires certified or accredited laboratories and a broad method list. In-house testing makes sense for high-frequency process control parameters — pH, conductivity, turbidity, some nutrients — or where sample holding times make shipping impractical. Compliance data is commonly still sent to a certified laboratory.
Usually kept in-house
- Process control and operational monitoring
- Short-holding-time field parameters
- Screening before sending confirmation samples out
Usually outsourced
- Regulatory compliance reporting requiring certification
- Trace organics, PFAS and dioxins
- Infrequent or wide-ranging analyte lists
Questions to answer before buying equipment
- Which methods or standards must the laboratory run, and at what edition?
- What sample types, sizes and annual volumes are expected?
- Are accredited (ISO/IEC 17025) results required for customers or regulators?
- What utilities, floor loading, ventilation and environmental control does the space provide today?
- Who will calibrate, service and qualify the equipment, and how quickly can they respond?
- Would outsourcing some work until volumes justify the investment be more economical?
Common questions
- Can in-house results be used for permit compliance?
- Only if the laboratory holds the certification or approval the regulator requires for those methods. Check with the permitting authority.