Environmental Enterprises USA, Inc.

Aquatic Toxicity Testing

Sediment Toxicity Tests With Synthetic Based Drilling Fluids (SBMs) or Synthetic Base-fluids (SBFs):

96 Hour/10 Day (Leptocheirus plumulosus) SEDIMENT TOXICITY TEST, ASTM E 1367 – 92 & Appendix A of GMG290000.

  • 96-Hour Definitive Test (SBM)
  • Concurrent Reference Standard Test***
  • 10-Day Definitive Test (SBF)
  • Concurrent Reference Standard Test
  • 275-Day Closed Bottle Biodegradation Test (ISO 11734-1995)
  • Batches of 8 or more samples. Smaller batches, P.O.R.

Leptocheirus plumulosus is commonly referred to as a ”lepto” or leptos.

Leptocheirus plumulosus

Drilling Fluids Toxicity Tests

96-hour Acute Static LC50. EPA Method 58 FR 34592 (Mysidopsis bahia)

  • Acute 96-Hour Range Finding Test (RFT)
  • Acute 96-Hour Definitive Test (DT)
  • Acute RFT & DT Test (LC50)
  • Partial Test

Mysidopsis bahia is now referred to as Americamysis bahia.  The common name for this organism is Opossum Shrimp however, names such as mysid and mysid shrimp are used.

Please visit our Sediment Toxicity Page for additional information on Drilling Fluids Tests

Mysidoposis bahia
Mysidoposis bahia

Chemically Treated Seawater and Freshwater: Region IV

Seven-day Chronic Static-Renewal EPA-821-R-02-014

  • Larval Survival, Growth and Fecundity Test, Method 1007 (Mysidopsis bahia)
    • Mysidopsis bahia is commonly referred to as mysids, opposum shrimp, shrimp, or shrimps.

Seven-day Chronic Static-Renewal EPA-821-R-02-014

  • Survival and Growth Test, Method 1006 (Menidia beryllina)
    • Menidia beryllina is commonly referred to as silverside minnow, minnows, menidia, etc.

Common names for the organisms listed above:

  • Mysidopsis bahia - Opossum Shrimp. Names such as mysid and mysid shrimp are also commonly used.
    • Mysidopsis bahia is now officially referred to as Americamysis bahia
  • Menidia beryllina - inland silverside, plateadito salado [Spanish], and tidewater silverside [British].
Mysidoposis bahia
Mysidoposis bahia
Menidia beryllina

Chemically Treated Seawater and Freshwater: Region VI

Acute Static-Renewal NOEC/LOEC EPA-821-R-02-012

  • 48-Hour Definitive, Method 2006 (Menidia beryllina)
  • 48-Hour Definitive, Method 2007 (Mysidopsis bahia)

Common names for the organisms listed above:

  • Mysidopsis bahia - Opossum Shrimp. Names such as mysid and mysid shrimp are also commonly used.
    • Mysidopsis bahia is now officially referred to as Americamysis bahia
  • Menidia beryllina - inland silverside, plateadito salado [Spanish], and tidewater silverside [British].
Mysidoposis bahia
Mysidoposis bahia
Menidia beryllina

Produced Water Toxicity

Seven-day Chronic Static-Renewal EPA-821-R-02-014

  • Larval Survival, Growth and Fecundity Test, Method 1007 (Mysidopsis bahia)

Seven-day Chronic Static-Renewal EPA-821-R-02-014

  • Survival and Growth Test, Method 1006 (Menidia beryllina)

Common names for the organisms listed above:

  • Mysidopsis bahia - Opossum Shrimp. Names such as mysid and mysid shrimp are also commonly used.
  • Mysidopsis bahia is now officially referred to as Americamysis bahia
  • Menidia beryllina - inland silverside, plateadito salado [Spanish], and tidewater silverside [British].
Mysidoposis bahia
Mysidoposis bahia
Menidia beryllina

NCP Testing:

Revised Standard Dispersant Toxicity Test

  • FR/Vol. 59, N0.178/47461-47464

Swirling Flask Dispersant Effectiveness Test

  • FR/Vol. 59, No. 178/ 47458-47461

Common names for NCP Testing

  • Revised Standard Dispersant Toxicity Test
  • National Contingency Plan Toxicity

Salt Water Tests

Acute Static-Renewal EPA-821-R-02-012

  • 24-Hour Definitive Test, Method 2006 (Menidia beryllina)
  • 24-Hour Definitive Test, Method 2007 (Mysidopsis bahia)
  • 48-Hour Definitive Test, Method 2006 (Menidia beryllina)
  • 48-Hour Definitive Test, Method 2007 (Mysidopsis bahia)
  • 96-Hour Definitive Test, Method 2006 (Menidia beryllina)
  • 96-Hour Definitive Test, Method 2007 (Mysidopsis bahia)

Seven-day Chronic Static-Renewal EPA-821-R-02-014

  • Larval Survival, Growth and Fecundity Test, Method 1007 (Mysidopsis bahia)

Seven-day Chronic Static-Renewal EPA-821-R-02-014

  • Survival and Growth Test, Method 1006 (Menidia beryllina)

Common names for the organisms listed above:

  • Mysidopsis bahia - Opossum Shrimp. Names such as mysid and mysid shrimp are also commonly used.
    • Mysidopsis bahia is now officially referred to as Americamysis bahia
  • Menidia beryllina - inland silverside, plateadito salado [Spanish], and tidewater silverside [English].

Common test names for these tests:

  • Freshwater toxicity test
  • Freshwater toxicity testing
  • Freshwater toxicity tests
  • Water toxicity testing
Mysidoposis bahia
Mysidoposis bahia
Menidia beryllina

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  • Revision Date: April 30th, 2006
  • ©2005 Environmental Enterprises USA, Inc
  • 58485 Pearl Acres Rd., Slidell, LA 70461
  • 800-966-2788