George F Ritz
Science and Products
The USGS Quality Systems Branch (QSB) represents the Water Mission Area’s commitment to generating environmental data of known quality. QSB produces water and sediment performance-assessment samples and data to provide the USGS laboratory users, USGS laboratories, and field personnel with quantitative performance information to assess data quality.
Guidelines and standard procedures for continuous water-quality monitors: Site selection, field operation, calibration, record computation, and reporting
The U.S. Geological Survey uses continuous water-quality monitors to assess variations in the quality of the Nation's surface water. A common system configuration for data collection is the four-parameter water-quality monitoring system, which collects temperature, specific conductance, dissolved oxygen, and pH data, although systems can be...Wagner, Richard J.; Mattraw, Harold C.; Ritz, George F.; Smith, Brett A.