Water Source Design
Properly designed water supply systems are critical in supporting our countrys social, economic and environmental sustainability. To ensure a reliable source of potable water for all, governments have developed standards for the safe development and maintenance of various water-related systems. The primary standard for water source design is the American National Standard Institute (ANSI) Z358.1. This standard outlines the criteria and requirements related to safe access, location, construction, troubleshooting and operation of emergency showers, eyewashes and combination units.
The American National Standard Institute is the internationally-recognized body that sets the standards for many items, including water-related systems. ANSI Z358.1 defines the criteria and requirements that water supply engineers must adhere to when designing water sources. The standard established three key areas at which successful water source designs should aim to meet or exceed.
The first area of coverage is accessibility. Accessibility is essential for ansi z358.1 compliant water sources. Clear unblocked access is provided for visitors and personnel to the water source without them having to traverse the distance of greater than 12 steps or 30 feet. If a water source or eyewash station is located in an outdoor setting, additional factors must be taken into consideration such as temperature, wind and sunlight.
The second area covered in the standard is location. Locations for water sources are typically selected based on the risk of contact with a contaminating substance or a corrosive or caustic material. If a water source is intended for use in emergency situations, the location of that water source must be easily visible and accessible.
The third area is construction. The materials that are used to construct the water sources must be able to satisfactorily resist corrosion, sunlight and chemical damage. Along with appropriate construction materials, the water source must be properly installed and include the necessary clearancing, vented drainage and temperature regulation components.
In addition to the accessibility, location, and construction requirements outlined in the standard, the ANSI Z358.1 states that water sources must be properly maintained. This includes ensuring that all parts are in working order and that the proper safety equipment is available. Additionally, some local authorities have additional requirements regarding the testing of water sources.
While not all water source designs require a professional engineer to design and construct them, it is a good idea to hire a professional engineer for more complex or unique designs. Working with an experienced professional may cost a bit more, but it also ensures a system that meets all the requirements outlined in ANSI Z358.1, as well as any additional local requirements.
Ensuring that water sources are properly designed and maintained is essential for our societys economic, social and environmental sustainability. Meeting or exceeding the requirements outlined in ANSI Z358.1 provides assurance that water sources will adequately fulfill their purpose. Professional engineers are typically an ideal resource for the development of water supply systems, and can produce designs which are both economical and sustainable.
Take the time to properly and safely design your water sources. Proper water source design helps ensure the health and safety of your visitors and personnel.
