Irvine Ranch Water District
http://www.irwd.com/doing-business/purchasing/standard-product-specifications.html
These product specifications have been prepared to govern the construction of all water, recycled water and wastewater transmision pipelines and appurtenances. The Standard Specifications specify products and materials that have been approved for use on IRWD projects. These products are specified either directly by the manufacturer and/or model number, or indirectly by means of technical requirements.




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