If the chlorination system is a gas-discharge system, it shall meet the requirements of ANSI/AWWA Standard C651, Section 6.5.8
If the chlorination system is a chlorinate water system, it shall meet the requirements of ANSI/AWWA Standard C651, Section 6.5.8 and the Operating Authority shall consult with an equipment designer with experience with chlorine systems.
The disinfection system is known to malfunction, and an owner/operator wishes to replace the chlorination equipment within the disinfection system. The Operating Authority is notified that the chlorination system is known to malfunction. The Operating Authority shall follow the procedures and conditions for replacement of the equipment as outlined in ANSI/AWWA Standard C651, Section 22.214.171.124
The chlorination equipment shall be tested using the procedure in ANSI/AWWA Standard C651, Section 6.5.8. The equipment shall be tested at the request of an owner/operator.
Every Wells Fargo Bank Water Services Divisional water servicing office has been instructed on how to use the new AWWA-approved TDS value tables to calculate acceptable water treatment levels in an effort to help both consumers and utilities in determining how to treat water for drinking, recreation, and other uses.
The FWAS (version 6.0) is the only system available today that is prepared to meet the needs of the drinking water audit industry. The FWAS (version 6.0) is a tool that will: Allow for the entry of the pre-existing data from previous free water audits Allow for the development of any custom definitions or new descriptors Allow for the ability to report free water at both the branch and component levels Allow for the ability to report on the total free water for a given component of the drinking water distribution system Allow for the ability to report on the specific free water for each component of the drinking water distribution system Allow for the ability to report on the free water for any branch in the system Allow for the ability to report on the free water for a given geographical region in the system
The process of preparing the entire free water and working flow tables and reports for a system is labor intensive, and requires several people for the data entry and reporting processes. The data entry (e.g., entering the flow information into a spreadsheet template) must be done in a cost efficient manner. In order to minimize the errors and the frequency of revisions to the data, a method for an efficient data entry process is needed. A solution that would minimize the time required to perform and post the audit process, allow for data to be entered in a manner that prevents errors and is cost efficient, is needed.
The free water and working flow tables and reports are developed by classifying the pipes for each component of the drinking water distribution system, assigning pipe sizes to each class, and then assigning flow rates to each component in each class of pipe. The table file for a component of the drinking water distribution system contains an average of flow rates for each pipe size in the component. The data in the table file has been derived from volumetric measurements of the individual components in the system, as well as the estimated flow rates for the individual components. The data is arranged in table format so that it is possible to view the flow rates for individual components, and individual components of the drinking water distribution system.