Guidelines and Standard Procedures for Continuous Water-Quality Monitors: Station Operation, Record Computation, and Data
Reporting, Techniques and Methods 1-D3.
USGS Protocol for the Collection of Processing of Surface-Water Samples for the Subsequent Determination of Inorganic Constituents in Filtered Water,
Open-File Report 94-539
USGS Guidelines and Standard Procedures for Studies of Ground-Water
Quality: Selection and Installation of Wells, and Supporting Documentation,
Water-Resources Investigations Report 96-4233