GRAVEL PRODUCTS, INC.
RELATED SITES
Double click on the highlighted text to go to the page of the agency specified. All material seen will be Internet published by the agency designated. sites may be changed from time to time.
AWWA STANDARDS
This link now goes to AWWA site for current Legislative activity in water concerns. American Water Works Association's Standards for water plant filter media are no longer active on internet. For water plant information see specifically ANSI/AWWA B-100-96, Section 4.1, 4.4, and Forward II available in hard copy or CD publication.
AWWA PUBLICATIONS
American Water Works Association's Publications List. Op-Flow articles featured in Spring, 1998, issue address NSF and standards for water plant filter media compliance.
NSF INTERNATIONAL
Review the ANSI/NSF requirements re: filter media. Is compliance being met? Corrigenda for ANSI/NSF 61-1999 (PDF document) available. NSF standards may be viewed, printed, or downloaded.
NSF NEWSLETTERS
The latest in NSF releases through their newsletter. Summaries of the latest editions.
TNRCC REGULATIONS
Texas Natural Resources Conservation Commission
30 TAC, chapter 290, Para. 42 (d) (10)(A, B) gives the recommended specifications to be met for filter media usage in water plant installations. Information located on page 26 of 71.
GIS INFORMATION AND MAPS
The Texas Natural Resource Information System, a division of The Texas Water Development board, is the clearing house for natural resources data and distribution center for USGS maps specific to water resources and other natural spatial data.
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