Marissa Castro Email & Phone Number

Oakland, California, United States

Environmental Hydrology & Design

Minneapolis, Minnesota, United States

-Lead the installation, operation, calibration, and repair of probes, sondes, automatic samplers, fish sampling equipment, and other monitoring equipment-Create protocols and generate automatic workflows for quality assurance and control of data collection, processing, and storage. Oversee maintenance of the District's hydrologic and water quality database-Assist in coordinating sampling efforts with local, state, and regional agencies and organizations in the collection and distribution of data-Aid in the development of Total Maximum Daily Load (TMDL) studies within the District, providing technical support to the Minnesota Pollution Control Agency and its consultants-Maintain strategic relationships with other water resource professionals to identify novel field techniques and make recommendations to the Manager for continuous improvement of the program-Train seasonal field assistants

Marine On St Croix, Minnesota, United States

-Perform technical work and analytical testing on sediment and water samples, including phosphorus extraction, sediment dating using radioisotope analysis, and mass spectrometry-Conduct routine and specialized analyses of environmental samples-Assist research staff in general operation of laboratory-Manage analytical instrumentation

-Oversee field research, including operating small boats & canoes, in situ water quality measurements, deploying field equipment, collecting surface water, porewater and sediment-Conduct research on the spatial variability of methylmercury and other analytes in surface water for management and mitigation initiatives-Maintain and operate field and laboratory instruments including pressure transducers, gravity cores, multi parameter sondes, GPS equipment, MerX mercury analyzer, atomic absorption spectrophotometer, gas chromatography-Coordinate summer research program with Fond du Lac Tribal Community College-Contribute to scholarly articles, peer-reviewed publications and outreach materials

Indiana Dunes National Lakeshore

-Manage E. coli collection, processing and reporting for the Park in correspondence with the BEACH Act of 2000 and other Clean Water Programs-Assist in collection and processing of water samples for nutrients and standard water chemistry (Nitrates, phosphates, dissolved oxygen, pH, turbidity, total suspended solids, etc.)-Collect and process physical data (aquatic/riparian habitats, geospatial and sediment/soil data)-Participate in fish, amphibian, crayfish and insect community surveys via electrofishing, seining, angling and multi-habitat D-netting-Database management, in-field/lab record keeping and QAQC-Manage laboratory cleanliness, safety checks and equipment upkeep

San Jose, Ca

• On-site quality assurance and data management• Audit preparation and filing• Produce reports, leases, and various legal documents• Update & maintain lessee financial records

Santa Clara, Ca

In addition to teller tasks...• Manage teller staff• Perform daily, monthly, and quarterly tasks to ensure location readiness for audit• Handle customer upheavals as well as complex issues• Step-in for service manager as needed

Santa Clara, Ca

• Facilitate all customer-related needs• Meet customer satisfaction expectations as well as daily & quarterly sales goals• Accountable for all cash handling and balancing• Process a wide range of monetary transactions

Master Of Science - Ms, Water Resources Science

Activities and Societies: Water Resources Science Students in Action Co-President

Biology –– Concentration In Ecology, 3.5 Gpa

Undergraduare Coursework, Biology, 3.2 Gpa

Undergraduate Coursework, Biology, 3.2 Gpa