Nautilus Environmental

Nautilus Environmental

Ambient Water, Stormwater, & Whole Effluent Toxicity Service

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Nautilus has an extensive resume of successful long-term whole effluent monitoring programs for numerous permitted clients, many of whom have worked with our group (as Nautilus and predecessor companies) for more than a decade. Our focus on staff retention, QA and method improvements, and cost management lends itself to positive, long-term client relationships, a clear understanding of the needs and expectations of each permittee, and data submittals that withstand regulatory scrutiny.

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We also conduct routine toxicity analyses on hundreds of stormwater samples from municipalities, commercial and industrial sites, and federal sites. In addition to routine testing, Nautilus manages and supports a large number of weather-driven monitoring and research programs, including stormwater and dry weather runoff studies, as well as evaluating the effectiveness and practicality of Best Management Practices (BMPs) and pilot engineering controls in reducing runoff toxicity. A representative selection of ambient, stormwater, and WET clients and collaborative agencies include:

  • Caltrans
  • City of Long Beach
  • City of San Buenaventura
  • County of Orange Public Facilities and Resources Department
  • Santa Monica Bay Restoration Project (SMBRP)
  • Southern California Coastal Water Research Project (SCCWRP)
  • Los Angeles County Sanitation District (LACSD)
  • Los Angeles Regional Water Quality Control Board (LARWQCB)
  • National Steel and Shipbuilding Company (NASSCO)
  • U.S. Navy-- Space and Naval Warfare Systems Center, San Diego (SPAWAR)
  • University of California Davis (UCD)
  • University of California Los Angeles (UCLA)
  • University of California San Diego, Scripps Institute of Oceanography (UCSD)

In order to successfully participate in the above-mentioned monitoring and research programs, we are accredited to conduct 36 acute and chronic test procedures using the marine and freshwater species listed below:

Freshwater Species

  • Fathead minnow (Pimephales promelas)
  • Rainbow trout (Oncorhynchus mykiss)
  • Amphipod (Hyalella azteca)
  • Daphnid (Ceriodaphnia dubia)
  • Midge larva (Chironomus tentans)
  • Green alga (Selenastrum capricornutum)

Marine Species

  • Silverside (Menidia spp.)
  • Topsmelt (Atherinops affinis)
  • Purple sea urchin (Strongylocentrotus purpuratus)
  • Sand dollar (Dendraster excentricus)
  • Mysid shrimp (Americamysis bahia)
  • Pacific oyster (Crassostrea gigas)
  • Mediterranean mussel (Mytilus galloprovincialis)
  • Red abalone (Haliotis rufescens)
  • Giant kelp (Macrocystis pyrifera)

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