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If each faucet volume is 2.5 gals/min, we find: 2.5 gals/min/faucet x 5 faucets = 12.5 gals/min. 420 <br /> gals- 12.5 gals/min=34 min. Each faucet would have to run full force for 34 continual minutes to <br /> equal the assigned kitchen water usage of 420 gals/day. Therefore, it is extremely unlikely the <br /> calculated water use volume would be exceeded if wash procedures referenced above are followed. <br /> Grease interceptor tanks are strictly for fats, oil and grease (FOG) originating from the kitchen area. <br /> The tanks are not designed to digest other organic matter such as waste vegetable pieces, etc. It is <br /> imperative that all food waste products are handled as solid wastes and disposed of as such Solid <br /> food waste products must not be introduced into the grease interceptor tank Only conventional <br /> septic tanks handle solid organic wastes. Additionally, excessive organics place elevated demands <br /> on the decomposition process and increase the nitrate loading potential. Even excessive FOG <br /> should be handled as a solid waste and disposed of accordingly instead of flushed into the grease <br /> interceptor tank. By scraping/wiping out pots and pans that have a significant amount of oils/grease <br /> content before washing will reduce the organic loading to the grease tank and promote longer pump- <br /> out intervals. <br /> It is also important that hot water be used in the pots/pans washing procedures so there is sufficient <br /> dissociation of the FOG from the wash water. Additionally, a phosphate free dishwashing soap <br /> should be used. Phosphates disrupt the biology of conventional septic tanks. A supplier of"septic <br /> tank safe" dishwashing soaps can be found at WalMart or Wexco Environmental. <br /> If there should be any questions regarding the information contained in this Addendum report, <br /> please contact the undersigned. <br /> Respectfully submitted, a'M o f e s s}osa <br /> CHESNEY CONSULTING �4� ori' Chess <br /> a <br /> ° No.75479 CD <br /> ti <br /> Don Che ey, PE ria Cfvi� <br /> Registered Civil Engin r#C75479 re of CaOo`� <br /> Attachments: <br /> Plumbing Plans <br /> Photographic Plates <br /> Page -2- <br /> Chesney Consulting <br />