OCWUT 07-26 Exhibit B Silica Sand Filter Media.pdf

This document is a procurement specification exhibit (OCWUT 07-26 Exhibit B) for Silica Sand Filter Media, designed to evaluate potential bidders' compliance with technical requirements. The exhibit provides a comprehensive checklist of specifications that bidders must address, including certification standards (ANSI/NSF Standard 61), compliance with AWWA-B-100a specifications, and detailed technical characteristics of the silica sand filter media. The document emphasizes that failure to complete the specification/evaluation requirements may result in bid rejection.

The specification requires bidders to confirm multiple technical parameters of the silica sand, such as composition (hard, durable, uncoated grains), cleanliness (thoroughly washed and screened), and specific physical properties. Key technical requirements include an acid solubility not exceeding 2.5%, specific gravity greater than 2.65, hardness greater than 5 Mohs, effective filter sand size between 0.55 to 0.65mm, and a uniformity coefficient less than 1.7. Bidders must provide responses to each specification item, indicating whether their product meets the prescribed standards, with space for additional comments or manufacturer details if the product is a resale item.