AWWA standards

In the AWWA specification standards, technical soHd sodium chlorite should not contain less than 78.0 wt % NaC102. The impurity limits for 80% assay sodium chlorite should not be more than 17.0 wt % sodium chloride, 3.0 wt % sodium carbonate, 3.0 wt % sodium sulfate, and 0.0003 wt % arsenic. The AWWA standards also specify the analysis procedures for all of the chemical components ia the sodium chlorite. 

A 587-96 (R2005) AWWA Standard Corrosion Data Survey, 1985... 

AWWA Standard for Granular Activated Carbon, ANSI/AWWA B604, American Water Works Association, Denver, Colo., 1991, 32 pp. 

American Public Health Association. WPCF and AWWA. Standard Methods for the Determination of Water and Waste Water, 14th edn. New York (1976). 

AWWA B 604-74 AWWA Standard for Granular Activated Carbon. 

Three most commonly used fluoride chemicals in the United States for fluoridation are sodium fluoride, sodium silicofluoride, and hydrofluosilicic acid. When applied to drinking water, they should meet the AWWA Standard B703-00 and B701-99 and should be NSF/ANSI Standard 60 certified. These sfandards ensure quality of the chemicals and limit the amount of impurities in the chemical, such as heavy metals (lead) (3,14,15). 

Dechlorination is an evolving practice in the water industry. Currently, there is no industry guidance or American Water Works Association (AWWA) standard for disposal of chlorinated water (5-7). The AWWA standard for disinfection of water mains (C651-92) provides some information on disposal of chlorinated waters. This information, presented as an appendix, is not a part of the standard. Regulations and permit programs for disposal of chlorinated waters vary widely among the states and provinces. 

AWWA C950 AWWA Standard for Fiberglass Pressure Pipe... 

S] AWWA Standard C104, Cement-Mortar Lining for Ductile Iron Pipe and Fittings for Water, AWWA, Denver, CO. 

American Water Works Association (1990-) AWWA Standards http //www.awwa.org/ Resonrces/ (accessed October 18, 2010). AWWA standards are approved as American National Standards and are nsed by water snpply professionals throughout North America and in other parts of the world. AWWA develops and maintains standards to improve drinking water quality and snpply for the pnblic. 

Require meeting standards. Use only chemicals certified to NSF Standard 60 or equivalent for water treatment chemicals. Chemicals should also meet AWWA standards. If there are no applicable AWWA or NSF standards, require the chemical to meet an American Society for Testing and Materials (ASTM) or another chemical industry standard. Some state regulatory agencies require certified chemicals. Check with the regulating authority for this information. 

Testing prior to unloading. Get a sample from every dry and liquid chemical dehvery (compressed gases are exempt). Conduct the special tests included in the purchasing documents. These tests include, at least, appearance (for all liquid and dry chemicals) and specific gravity (for liquids). AWWA standards or other chemical industry standards list the appearance requirements, which may include color, odor, clarity, and visible foreign matter. 

Liquid alum sulfate (alum) shall be manufactured from aluminum hydrate (Al(OH) ) and virgin sulfuric acid in a standard digestion process. Alum manufactured from waste products of other processes shall not be accepted. The successful bidder shall submit affidavits indicating compliance with NSF Standard 60 and AWWA Standard B403 (current edition) and with the requirement regarding raw materials specified in this paragraph. The affidavit concerning raw material processes must be submitted annually. 

ANSI-AWWA Standard DIOO. Water Steel Tanks for Water Storage, American Water Works Association (AWWA), Denver, Colorado. ANSI/AWWA Standard DlOl. Inspecting and Repairing Steel Water Tanks, Standpipes, Reservoirs, and Elevated Tanks, for Water Storage, American Water Works Association, Denver, Colorado. 

AWWA Standard for Welded Steel Elevated Tanks, Standpipes, and Reservoirs for Water Storage, AWWA DlOO-73, American Water Works Association, New York, 1973. 

AWWA Standard D103-87, Factory-coated bolted steel tanks for water storage 1987. 

The American Water Works Association (AWWA) publishes standards for the requirements for pipe and piping components used in water systems. These standards are used for large-diameter piping systems that are not covered by ASME B31, Code for Pressure Piping, or other codes. AWWA standards are incorporated by reference in many codes and by local authorities. Table 1.2 lists the principle AWWA standards that apply to thermoplastic piping products used in water systems. 

Forward to American Water Works Association Standard C901-96, AWWA Standard for Polyethylene (PE) and Tubing, In. (13 mm) Through 3 In. (76 mm) for Water Service, effective March 1, 1997. 

Disadvantages of CFRP lining include lack of a published design standard and limited performance history in pipehne applications, although CFRP has been used extensively in other civil infrastructure upgrade scenarios for many years, and there is an AWWA standard on CFRP renewal and strengthening of PCCP currently in development. 

The authors would like to acknowledge Dr Mehdi Zarghamee for his leadership on development of the AWWA standard for CFRP renewal and strengthening of PCCP as well as his technical leadership in the AWWA Research Foundation project. These efforts have contributed significantly to the content of this chapter. The authors would like to thank Mark Geraghty of Stmctural Technologies, LLC for his time and efforts. 

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