Toxicity Test Methods

EPA-821-R-11-004, Analytic Methods for the Oil and Gas Extraction Point Source Category

• Water or Synthetic Based Drilling Fluids Suspended Particulate Phase (SPP) Toxicity Tests

Americamysis bahia (formerly Mysidopsis bahia), EPA Method 1619

Leptocheirus plumulosus, EPA Method 1644

Artemis salina, Modified EPA Method 1619

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96-Hour Acute Static  LC50. Range finding and Definitive tests available

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• Synthetic Based Drilling Fluids Sediment Toxicity Tests

Leptocheirus plumulosus, EPA Method 1644

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96-Hour Definitive Test with required concurrent reference sample.

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• Synthetic Base Fluids Sediment Toxicity Tests

Leptocheirus plumulosus, EPA Method 1644

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10-Day Definitive Test with required concurrent reference sample

Mysidopsis bahia

Leptocheirus plumulosus

EE USA can also prepare samples with additives, hot-roll the prepared sample to simulate field conditions, and complete toxicity testing. After hours and rush services available. 

Analytical Test Method

• Determination of Crude Oil Contamination in Non-Aqueous Drilling Fluids by Gas Chromatography/Mass Spectrometry (GC/MS), EPA Method 1655

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Standard Turnaround Time 1-2 Business Days. 

After hours and rush services available.

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• Static Sheen Test, EPA Method 1617

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EE USA's staff are thoroughly and annually trained to perform tests according to Standard Operating Procedures developed following EPA methodology and NELAP standards. They have the skills and experience to develop methods for special projects as well as complete primary test methods.