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Guam Hydrologic Survey (GU PL 24-247 & 24-161)（https://guamhydrologicsurvey.uog.edu/）
University of Guam（https://www.uog.edu/）
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Water Quality Laboratory
The Water Quality Laboratory supports WERI water quality research projects and operates as a semi-commercial laboratory that offers water quality testing. Testing services are categorized into three sections: microbiological, chemical, and physical tests. The microbiological section tests for the presence and quantitation of total coliforms, E. coli, enterococci, and heterotrophic bacteria. Equipment include, 2 incubators, a water bath, autoclave, IDEXX QuantiTray sealer, and a UV light cabinet. The chemical testing section tests for metals (10) and nutrients (nitrogen and phosphorus species). Equipment 3 atomic absorption spectrophotometers, 2 digestion blocks, and a flow injection analyzer. Basic physical tests include pH, chlorine (free and total), conductivity, salinity, solids (total, dissolved, suspended), and turbidity. Equipment available for these tests are 4 balances (2 analytical and 2 top loader), 2 chlorine meters, 2 ovens, 2 pH/conductivity meters, 2 refractometers, and a turbidimeter. Other equipment regularly used are ultrapure water systems, refrigerators, freezer, lyophilizer, accelerated solvent extractor, solvent evaporator, refrigerated centrifuge, and a gas chromatograph with an ECD detector. Laboratory staff includes a laboratory manager, a chemist, a lab technician, and 2 lab assistants.
Contact Us
GEPA Certified Laboratory
Certificate 24-01 & 24-001（https://weri-cdn.uog.edu/wp-content/PDFs/WQ%20Lab/GEPA%20Certs%2024-01%20%26%2024001.pdf）
Request Form
WERI Chain of Custody（https://weri-cdn.uog.edu/wp-content/PDFs/WQ%20Lab/WERI%20Lab%20COC_Analysis%20Request_ServicesCost.pdf）
Other Services Request form（https://weri-cdn.uog.edu/wp-content/PDFs/WQ%20Lab/WERI-ADM-F002%20Other%20Service%20Order%20Requests_v2.pdf）