Updates to the Procedures for Surface Water Quality Monitoring
The SWQM Procedures Manual describes methods for collecting and analyzing biological community and habitat data and physical and chemical monitoring methods for water, sediment, and tissue. The Procedures Manual was most recently published in 2012 (Volume 1) and 2014 (Volume 2).
The process for making interim changes to the manuals is outlined in the Procedures for Making Interim Changes to the SWQM Procedures Manuals.
The updates provided below supercede the corresponding items in Volume 1: Physical and Chemical Monitoring Methods (RG-415) (August 2012).
Unless otherwise indicated, links are PDF documents.
Summary of Changes
- Interim Changes Summary Table (June 2015)
This table provides a summary of major and minor changes to the SWQM Procedures Manual, Vol. 1.
- Invasive Aquatic Species: Boat, Trailer, and Equipment Cleaning Guidelines (September 2013)
Describes methods for decontaminating boats, trailers and equipment to prevent the spread of invasive species in freshwater.
- 24-hr Dissolved Oxygen - When to Take Measurements (June 2015)
Provides expanded guidance for the temporal distribution of 24-hr dissolved oxygen monitoring.
- Primary Contact Recreation Observations (January 2015)
Adds information on making observations related to contact recreation use at routine monitoring sites.
- Example Field Data Sheet (October 2012)
- Multiprobe Temperature Sensor Check (October 2012)
Provides guidance for conducting required temperature sensor check during routine maintenance.
- YSI 6-Series Multiprobe Optical Dissolved Oxygen Membrane Replacement (November 2012)
Provides guidance for locating and entering optical membrane coefficients during annual membrane replacement.
- Hydrolab Multiprobe Calibration/Maintenance Log and pH Calibration Standards Table (May 2014)
A template for the minimum requirements for a Hydrolab multiprobe calibration and maintenance logbook and the table for pH calibration standards temperature corrections.
- Quality Assurance and Quality Control (May 2014)
The collection of field split samples is no longer required for routine water chemistry samples.
Procedures for Shipping Bacteriological Samples (May 2014)
This change applies to TCEQ SWQM staff only.
These updates provided below supercede the corresponding items in Volume 2: Methods for Collecting and Analyzing Biological Assemblage and Habitat Data (RG-416) (May 2014).
There are no updates for Volume 2.