Pacific Southwest Research Station

Publications and Products

General Technical Report

Title: Implementation guide for turbidity threshold sampling: principles, procedures, and analysis

Author: Lewis, Jack; Eads, Rand

Date: 2008

Source: Gen. Tech. Rep. PSW-GTR-212. Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station. 86 p

Station ID: GTR-PSW-212

Description: Turbidity Threshold Sampling uses real-time turbidity and river stage information to automatically collect water quality samples for estimating suspended sediment loads. The system uses a programmable data logger in conjunction with a stage measurement device, a turbidity sensor, and a pumping sampler. Specialized software enables the user to control the sampling process, plot and correct the data, and estimate suspended loads. This implementation guide describes the entire process, including instrumentation, installation, field procedures, software usage, data collection, laboratory methods, data interpretation, data reduction, and analysis.

Key Words: Turbidity, suspended sediment, sediment loads, pumping sampler, stream gaging, water quality

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Citation

Lewis, Jack; Eads, Rand  2008.  Implementation guide for turbidity threshold sampling: principles, procedures, and analysis  Gen. Tech. Rep. PSW-GTR-212. Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station. 86 p.