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SRWC Proposed Potable and Recycled Water Options (As Directed by Redwood City) 6.1E Page 19 Table 3A: Potable Water For All Water Usage Potable Water Usage Recycled Water Usage Projected Water Demand (From Table 2A & 28) (gpd) (gpd) Indoor Demand (includes clinics, office, etc.) .. 189.500. . 0 -iii-i'" 'ation' Demand"- .--..--.....-.-.....--.-......-..-..."..."..-..,,---....-.-.--......--......------..--.--.--- 46~622 ----.-.....-.."-''.-0-...-......-..---...- Total (gpd) 236,122 d 0 Total (AF/yr) 264.4 AFI r 0 Percent ofTotal.(%) .. .... ....... .... . 100% . 0% llli~~M{t;\~f;~t~.~r~;~3~~~i~~~(."@~~~~~M\r~~llim~.J;"~i'~;~~j~~J~rn~~'~!~J:~'..M;~,,::'~~~{iftf~~J.'M:I,t~'~!?;i~ Table 38: Recycled Water For Irrigation Only Potable Water Usage Recycled Water Usage Projected Water Demand (From Table 2A & 2B) In<:!~!.p.f:l'!ll:li!.d.J!~I~~.!ls clini~...2~~!_~.~:L_._..._..._.",.._.._...._....._.___ Irri ation Demand Total (gpd) Total (AF/yr) Percent of Total (%) .p~~~i~;W~t~O~~fcjji1.g~Xt~ijitpi.9~~~?TQ~I.~~!~#ijg:fr9.ij1:Ta.bfeA'p)~; :: :': :';: :',;: ~:~~\~~=.::r~.}~J ~.~.~ ~;:.'~{:~'i,~~\\ej{~ ::!(~,~~ :~~,~~}:~~~~ i;t~\~~~~ .:.:::,:~.~';~:';':';.~';'~~.;.:;. '.~.<Y~\~~ ;:::':~~..:.::.:::.:; . :.:;::' .~.~:: ~~(~.~:~:\.~:~~t:l~ i ~~":"; ~:;: ~~ ~::~: ;'::.::':"" ." ::'.::::'.:::: Table 3C: Recycled Water For Toilet Flushing and Irrigation Projected Water Demand (From Table 2A & 2B) Indoor Demand Office Oemand1 (0.06 gpd/sqft) Joi~t.f!u~J!1~ets-'____.._.__.. ..Qri'!.~f'!.9., mechanical system, etc. Research & Development (R&D) Oemand2 (0.21 gpd/sqft) ..!l?!!~~.!!.'!2~~!.'.J.fk.~t~:_________________..._...____.__..__.___..__._?_~~.."'............._._....._ ..._____._..._...__._..__........._....__ .l?~!.nl<!.'-!J}!....r!'.~.9.!.!..~(!!~!..~~~~_I'!1L~~~~_...__...___.......____............._......._..__...___??...."{o._...__........_........._..__..._~_~.!...?55 ____...._......._......_......_ Clinic Demand2 (0.18 gpd/sqft) ..! O'~!f!Ln..u.~f!j'.!.fl!._~~q:...__...._..._..._.._._...__._.._._..._.........._..__........__.....__..__...___~.~~..._....._.... p.r.~f)~!!!.9.., "!.~f.~an!caJ system, etc. _3__.__._.___._.._..l~!(I._.._...__..._._.._..._._..?~~565 Cafeteria & Common Support Uses Demand (0.63 gpd/sqft avg.) ..!(:)!.~(~..Y..~!r!iJ.!...~t..~:........._................._.._._...._............._......................................_......._...._.....__...1.?!o..............................__._._.._................_........... ....!.~?QQ.-.--_....- .__..._ .._ Pr.!'?!!!!!.9. c~~.E!~ing, etc:-__.____ 85%..........__._________._.__. 1m ation Demand Total (gpd) Total (AF/yr) Percent ofTotal (%) 47% % of Water Demand Potable Water Usage Recycled Water Usage (gpd) (gpd) 80% 20% ".-..""...._._~!..QQQ..----- _...!~.!...5...Q!5-==:::=~...~:::..."::.".._------- 7.245 .._..._._._..!..~93~___ ~ 1. 60% recycled waler rate based on .Water Recycling in California", prepared by Ihe Redwood City Public WOlks Services Department. April 2003. 2. Waler use over 0.048 gpdIsqft (or 80% of office rate) is conservatively assumed to be 100% potable. Using R&D as an example. Ihe recycled waler usage rale is assumed to be 0.048 gpdIsf (same as for office) and the potable water rate is 0.162 (021 -0.048) gpdlsqfl. 3. 15% recycled water rate for Cafeteria & Common Support Uses per lhe City's direction. BKF Engineers - 5121/2009 K:\ENG08\088028\Ca!cs\SRWC-WalerUsage_OS-21.Q9 _RWC _method.xls