JF2003 Three-Layer Screening Procedure
The JF2003 three-layer screening procedure is a comprehensive system for ensuring a safe drinking water supply for the general public. The screening procedure is a standardized set of guidelines detailing the steps that should be taken to identify and evaluate potential sources of contamination in the water. The purpose of the procedure is to protect the public health and ensure that drinking water is safe and of high quality.
The three-layer screening procedure is designed to address the biological, physical, and chemical contaminants that may be present in drinking water. The procedure begins with an initial evaluation of the source water. This evaluation looks at the ecosystem and any potential sources of contamination that may be in the environment. This includes identifying any pertinent environmental laws and regulations or other sources of contamination that can lead to contamination of drinking water.
The second layer of the screening procedure looks at physical characteristics of the water. In this layer, the characteristics of the water’s color, odor, taste, and clarity are analyzed. This includes performing water quality tests to measure physical parameters such as turbidity, pH, and temperature. Additionally, microscopic examination of the water samples is conducted to detect the presence of pathogens and other potential contaminants.
The third layer of the screening procedure looks at potential chemical contaminants. During this layer, water samples are tested for the presence of various chemicals such as phosphates, nitrates, pesticides, herbicides, and disinfection byproducts. These tests help to identify if any of these chemicals are present in the water and at what levels they can be considered hazardous.
The ultimate goal of the three-layer screening procedure is to ensure that drinking water is safe and of high quality. This procedure is meant to protect the public by identifying and evaluating potential sources of contamination and protecting water sources from environmental contaminants. The screening procedure helps to ensure that the public keeps getting clean and safe drinking water.
