Everything You Need to Know About Drinking Water Surveillance – The Ultimate WSTG Technical Guide

Keeping our drinking water clean and free from contaminants is crucial for our health and wellbeing. However, the current global situation has brought into focus the importance of ensuring potable water quality. In many parts of the world, water quality is threatened by pollution, climate change, and aging infrastructure.

For this reason, it’s essential to know why water quality matters and how we can ensure that our drinking water remains clean and safe for consumption. In this blog, we will take a closer look at the steps we can take to maintain potable water quality and why it matters to us and our environment.

What is WSTG?

WSTG, or the Drinking Water Surveillance Technical Guide, provides guidelines for monitoring and assessing drinking water quality. This guide was developed by the World Health Organization (WHO) to support countries in establishing effective surveillance programs for drinking water. WSTG outlines best practices for water quality testing and sampling, as well as principles for risk assessment and management.

It covers a wide range of topics, from the selection of sampling locations to the identification of potential hazards and contaminants. By following the recommendations provided in WSTG, authorities can ensure that their drinking water is safe for consumption and prevent the spread of waterborne diseases. Overall, WSTG is an important tool for promoting public health and ensuring access to clean drinking water worldwide.

Defining Drinking Water Surveillance Technical Guide

The Defining Drinking Water Surveillance Technical Guide, or WSTG for short, is a comprehensive document that outlines the best practices for monitoring and ensuring the safety of drinking water. It covers a range of important topics, including sampling procedures, testing methods, data analysis, and information management. The purpose of the WSTG is to provide standardized, reliable guidance to water utilities and public health officials to help them maintain the quality of drinking water at all times.

By following these guidelines, water providers can identify potential problems, take corrective actions, and ultimately protect the public from waterborne illnesses and other health risks. Overall, the WSTG is an essential tool for anyone involved in the monitoring and management of drinking water supplies.

drinking water surveillance technical guide wstg

Purpose of WSTG

The Web Security Testing Guide (WSTG) is an open-source project designed to aid developers and security professionals in understanding and testing web application security. This comprehensive guide covers everything from the basics of web application security to advanced topics such as authentication, session management, and input validation. WSTG includes checklists and testing frameworks for each stage of web application development, making it a valuable resource for both developers and security teams.

The purpose of WSTG is to provide a standardized approach to web application security testing, helping organizations identify and mitigate potential security risks. By using the WSTG guide, developers and security professionals can ensure that their web applications are secure and protected from potential threats. Whether you are a developer building a new web application or a security professional looking to improve your testing process, WSTG is an indispensable resource that you should not overlook.

WSTG Components

The Drinking Water Surveillance Technical Guide (WSTG) is an essential resource for ensuring safe and clean drinking water for all. The guide is made up of several components that cover different areas related to water quality, including surveillance, risk assessment, verification, and communication. Each component is essential in its own right, and together they form a comprehensive framework for managing drinking water safety.

The surveillance component, for example, involves monitoring water quality and identifying potential risks to public health. The risk assessment component uses this information to evaluate the likelihood and severity of any impacts on human health. Verification involves ensuring that appropriate measures are in place to address these risks, and communication allows for the dissemination of information to stakeholders.

Together, these components help to ensure that all drinking water is safe and compliant with national standards.

Sampling and Monitoring Protocols

Sampling and monitoring protocols are essential components of web security testing, as they help identify vulnerabilities in applications and networks. In web security testing, sampling refers to the process of selecting a subset of data or traffic to examine, while monitoring refers to the continuous observation of activity for potential threats. Both methods can be used to detect and prevent attacks, such as cross-site scripting (XSS) and SQL injection.

By implementing these protocols, testers can gain a better understanding of an application’s behavior and potential risks, as well as the effectiveness of security controls in place. It’s important to note that sampling and monitoring must be performed in a non-disruptive manner to avoid impacting the performance of the application or network. Moreover, frequent testing and monitoring are necessary to keep up with evolving threats and to ensure that vulnerabilities are addressed in a timely manner.

Laboratory Analysis Procedures

When it comes to laboratory analysis procedures, the components used within the process play a critical role in the accuracy and reliability of the results. One such component is the Web Services Testing Guide (WSTG). The WSTG is a comprehensive guide that outlines the methodologies and technologies commonly used in web application security testing.

It consists of four primary components, including the “Assessment Methodology,” which involves a thorough analysis of the web application’s architecture and infrastructure; the “Testing Guide,” which provides a step-by-step process for conducting security tests; the “Code Review Guide,” which offers guidance on manual and automated code reviews; and the “Appendices,” which include references, definitions, and additional resources for further research. By following the WSTG protocols and utilizing its comprehensive components, laboratory analysts can ensure the accuracy and thoroughness of their web application security testing procedures.

Data Reporting and Interpretation

When it comes to data reporting and interpretation, one key component to keep in mind is the Web Security Testing Guide (WSTG). WSTG is a comprehensive guide that outlines the best practices and techniques for testing the security of web applications. It is designed to help developers and security professionals identify weaknesses in web applications and take necessary measures to secure them.

The guide contains different components that cover a range of security areas, including information gathering, authentication, access control, input validation, and error handling. By following the WSTG components, you can ensure that you are collecting and analyzing the necessary data to identify vulnerabilities and potential threats to your web applications. With this information, you can make informed decisions and take necessary actions to secure your web applications, protecting yourself and your users against malicious attacks.

Benefits of Implementing WSTG

Implementing the Drinking Water Surveillance Technical Guide (WSTG) can offer numerous benefits for your water management system. Firstly, following the guidelines outlined in the WSTG can ensure that your drinking water supply is monitored and treated effectively, leading to improved water quality and reduced risk of contamination. Additionally, implementing the WSTG can help your system stay compliant with any regulatory requirements or guidelines, minimizing the risk of penalties or fines.

Furthermore, having a well-managed drinking water system can enhance public trust and confidence in your water supply, which can have positive impacts on customer satisfaction and business reputation. Overall, incorporating the WSTG can lead to a more effective and efficient operation of your water system, ensuring the delivery of safe and clean drinking water to your community.

Assessing Water Quality Risks

Implementing the Water Safety Testing Guide (WSTG) can bring several benefits in assessing water quality risks. This guide provides a comprehensive approach to evaluating the safety of drinking water. By following the WSTG guidelines, water managers can identify potential risks and improve the water treatment process to ensure safe drinking water for communities.

The WSTG also provides a framework for monitoring and detecting contaminants in water sources. This early detection method allows prompt actions to prevent waterborne illnesses and other health risks. The implementation of WSTG also promotes transparency and accountability in the process of ensuring water safety.

Overall, incorporating the WSTG can significantly improve water quality and safety for the general public.

Protecting Public Health

Implementing the Water Safety Testing Guidelines (WSTG) can greatly benefit public health. By regularly testing and monitoring the quality of our water sources, we can ensure that they are safe for human consumption and recreation. This is particularly important as water sources can become contaminated by pollutants or harmful microorganisms, which can cause serious health problems if ingested.

By following WSTG, we can detect and address potential risks early on, preventing widespread outbreaks of illnesses or diseases. Additionally, implementing these guidelines can improve public awareness of water quality issues, encouraging residents to take more responsibility for their local water resources. Ultimately, the benefits of implementing WSTG are clear: better public health, improved water quality, and a safer, more sustainable environment for all.


In conclusion, the Drinking Water Surveillance Technical Guide (WSTG) is the ultimate “how-to” for ensuring safe and reliable access to clean drinking water for all. Whether you’re a seasoned water treatment professional or just starting out in the field, this guide provides an organized and comprehensive approach to monitoring and maintaining water quality. So drink up and rest easy knowing that the WSTG has got your back (and your tap).

Bottoms up!”


What is the drinking water surveillance technical guide (WSTG)?
The drinking water surveillance technical guide (WSTG) is a resource developed by the World Health Organization and the U.S. Environmental Protection Agency to help countries establish and strengthen their drinking water surveillance systems.

What is the purpose of the WSTG?
The purpose of the WSTG is to provide technical guidance on developing and implementing effective drinking water surveillance systems, including monitoring, data management, and risk assessment.

Who can use the WSTG?
The WSTG is intended for use by public health officials, water utilities, and other stakeholders involved in ensuring the safety of drinking water supplies.

What topics are covered in the WSTG?
The WSTG covers a wide range of topics related to drinking water surveillance, including source water protection, sampling and analysis, outbreak response, and communication and reporting.