services laboratory


For Positive Lab Service the commitment to quality is of utmost importance. Therefore, we continuously invest in our quality systems and the state-of-the art analytical technologies to meet the most stringent requirements of our clients and regulatory agencies.



For soil investigation and remediation projects the testing of environmentally relevant parameters on soil are of great importance. Positive Lab Service performs testing on routine parameters utilizing the following methods that fully comply with the relevant standards and regulations.

  • Phase II Investigation
  • Remediation
  • Site Closure


  • VOCs (Halogenated, Non-Halogenated, Aromatics)
  • Low Concentration (SIM Method)
  • TPH Fuel Ranges (GRO, DRO, ORO)
  • SVOCs, SIM Phthalates, SIM Phenols, SIM PAHs Pesticides, PCBs
  • Metals
  • Nutrients, Fluoride, Sulfide, Cyanide, pH
  • Moisture, Organic Content (Volatile and Non-Volatile)
water ripple


Water is our most vital natural resource therefore it is the object of various environmental laws and regulations. These not only apply for drinking water but include the whole water cycle. Positive Lab Service provides a range of tests for this important resource:

  • Sanitation Permittees
  • Storm Water Pollution Prevention Plan (SWPPP) Ground Water
  • Ground Water Monitoring
  • Drinking Water Methods


  • EPA 600 Series and Standard Methods
  • Metals 200 Series
  • Oil & Grease
  • General Wet Chemistry & Water Quality Components
hazardous waste barrels

Hazardous Waste

Positive Lab Service provides for the analysis of Hazardous waste characterization. A wide variety of determinations are also available following EPA SW-846 and Title 22 methods.

Waste Characterization (Per EPA SW-846 and Title 22)


  • Corrosivity
  • Reactive Cyanide & Sulfide
  • Flash Point
  • Zero Headspace Extraction
  • Title 22 WET, EPA TCLP and EPA SPLP Extractions Metals and Organics per CA Title 22 Method
soil vapor

Soil Vapor

Positive Lab Service conducts soil vapor intrusion testing to assess the possible risk of vapor intrusion. This is a cost-effective method of volatile organic compounds (VOC’s) compound detection.

  • Phase II Initial Investigation
  • Up Monitoring
  • Sample Collection from Existing probes with Vacuum Pump Field Testing


  • VOCs (Halogenated and Non-Halogenated Aromatic)
  • TPH Gasoline
positive lab mobile service truck

Mobile laboratory

We offer an accredited mobile laboratory managed and operated by an experienced chemist capable of providing analyses for soil and soil vapor samples. All tests are performed in compliance with EPA and approved standard methods and regulations, EPA and LUFT methods, Approved Standard Methods, Standard Operating Procedures, Standard Methods for Examination of Water and Wastewater (SM) and American Society for Testing and Materials.

  • Soil VOCs and Full Range TPH
  • Soil Vapor and TPH Gasoline
  • Soil Vapor Sample Collection from Existing Probes
  • Sampling by Vacuum Tube
woman testing in field

Field Services

Our in-house field services department is trained and ready to handle all your sampling situations. This saves our clients time and money by avoiding the need to our clients to have a trained sampling staff or additional cost of hiring a third party. Following are a list of most common services requested:

Complimentary containers with appropriate preservatives for water samples, glass jars for soil and sludge samples, container drop off and sample pick up are provided upon request with advance arrangements.

scientist rapid response

Rapid Response

We are the preferred laboratory for rapid response needs. Same day turn-around time services available as needed. Our uncompromising commitment to quality ensures strict compliance with critical standards.

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