Standard Operating Procedures: Continuous Water Quality Monitoring Network

These documents contain detailed information on TCEQ and USGS standard operating procedures (SOPs) for maintenance, analytical procedures, and validation for the Continuous Water Quality Monitoring Network (CWQMN) in Texas.

TCEQ CWQMN SOPs

• Yellow Springs Instruments
• Analysis of Dissolved Oxygen, Electrical Conductivity, pH, Temperature, and Sample Depth in Ambient Surface Water Using Yellow Springs Instrument (YSI) EXO Multi-Probes
• Analysis of In-Situ Turbidity in Ambient Surface Water at Pine Island Bayou for the Environmental Monitoring Response System Using Yellow Springs Instruments EXO Multi-Probes
•  Hydrolab-Hydrotech Instruments
• In Situ Analysis of Electrical Conductivity and Water Temperature in Ambient Surface Water for the Lower Rio Grande Network Using Hydrolab-Hydrotech Compact Minisondes 
• In-Situ
• Analysis of In Situ Specific Conductance, Water Temperature, and Sample Depth for the Bosque River Environmental Monitoring Response System Using Aqua TROLL 200 Multi-probes

Back to top

USGS Procedures and Guidelines

• Discharge Measurement
• USGS - Discharge Measurements at Gage Stations. TM3A8.
• Water Quality Measurement
• USGS - Guidelines and Standard Procedures for Continuous Water-Quality Monitors: Station Operation, Record Computation, and Data Reporting. TM1D3.
• USGS - Standard Operating Procedure for the Collection of Water-Quality Data Using a Vertical Profiling Water-Quality Monitor on the Arroyo Colorado, South Texas

Back to top

Related Content

• Continuous Water Quality Monitoring Network
• Coordinated Monitoring of Surface Water Quality