AgdaPkt 2009-07-13 clsd and jnt - Laserfiche WebLink

Browse Search

6.1E Page 18 SRWC EXISTING/PROPOSED POTABLE WATER DEMAND (As Directed by Redwood City*) Table 1A: Existing Indoor Potable Water Demand Water Usage5 Total Usage Bldg # / Address Total SQ Ft Type of Use. (gpd/sq ft) (gpd) .~?}3..~~ay 55,282 Office 0.06 3.317 .!2? .~.!."2~9.~1:l.y._........._.._..__........._............._......._... ..._....._....__..___. 14 C840-....--.-----..-----0fflce-.......-...---..-....-......o.:oe--.--..-.---.......--a:S:!.Q__._. ~??..!3.~.Cl~~Cly...__._______ 49.510 Office 0.06 2.971 ?9.9...!3 .:.o~~..~a.~_......._...._...._...._..._......._..._..._.._._...._.____. ..58:.452........ ... . ....-.....-..-----Office-...-.....-....-.....--....-O~06.'-"'-'-"'-'--"3-:-50-7-"--'-- .?lO_.~~_a9way ..___~~.!.?.?.!L.__..._.._._.._._ Offi~---~=_-O'-06._...:=::=-_=__..1.!~~~_....__...._w ..?~~~~~~Y__.___.___..._.__.____._.__..___..~1-____ Offic.e__._.__._.....Q.:~_._._.._.____~~93 ___. ~I5.{?~.?..!3.~dway ____._.._.._..._....._._~4.~QQ.Q_.._...__._._..__._... Office___._ 0.06 5.040 1228 Douglas 31.872 Office 0.06 1,912 Total 541,945 32,5171gPd 36.4. AFlyr *Existing type of use as specificed by Redwood City. Table 18: existing LandscaDina Potable Water Demand Total Site Area = Percent Irrigated = Landscapedllrrigated Area = Landscaping Water Demand (3.5 cuft of water Isqft/year) 1 = To convert from cufUyr to gal/year = To convert from cufUyr to gpd = I Table 1C: Existing Fountain Potable Water Demand Fountain Surface Area (sf) = Approximate Evaporation Rate2 (inches/year) = Fountain Water Loss Due to Evaporation (gpd) :: Table 10: I.Q1!! Existing Potable Water Demand Indoor + Landscaping + Fountain Water Demand = Table 2A: Projected Indoor Potable Water Demand 34.85 acres 1,518.066 sf 16% 241.576 sf 845.516 cuftiyear 6.324,460 gal/year 17,3271gPd 19.4 AF/yr 14.200 sf 50 in/year 1t2131gpd 1.4 AF/yr 51,0571gpd 57.2 (AF/yr) Type of Us e Approx. Sq Ft Clinics' (15%) 225.000 B.~!.ea.~~~::~::~~~:~f~p.~~-~:~::i!:Q~~).::~.~:::..:::.:::~.:::=:::.::_i~Q:!9.QQ:::.:=:::- .Qff!I?~ ~J.??f~.L........"~.._...".,,....__....__.--.--.- 1.125.000 Cafeteria'. 20,000 common...S..u.ppO.rt...lis.es.,.;'-...................--.....-......-.....--......--.........66:000.- Total 1,580.000 Water Usage Total Usage (gpd/sq ft) (gpd) ...._...._...._-_..._....._..g.:.~~...--... ._..._....._._..~~~..Q.._-_..- .........................................Q.:.?1......_......__....._......_.....3...:h.5.Q9.___ 0.06 ..._.__.__6.?_~._. ..._..,,_......_......................... .._!.~QQ....._....._....__..___.j!..O,OOO _ 0.50 30,000 189,50019pd 212.2 AF/yr Table 28: Projected Landscaoina Potable Water Demand Total Site Area = Percent Irrigated = Landscaped/Irrigated Area = Landscaping Water Demand (3.5 cuft of water /sqft/year)' = To convert from cuftlyr to gal/year = To convert from cuftlyr to gpd = 34.85 acres 1,518,066 sf 43% 650,000 sf 2.275,000 cuft/year 17,017,000 gal/year 46,6221gPd 52.2 AF/yr Table 2C: I2S!! Projected Potable Water Demand ;;~~;~~;;;~~;~,~~~":;,;;;,"';""",::':' ,;;;i1i!i;iij~,;;;,;;;!;;;,;:;:' ~ 1. From RedWOOd City Standards. Attachment O. 2. San Francisco evaporation rate taken from Geotechnical. Rock and Water Resources Ubrary of Arizona (grow.al'izona.edu). 3. Cafeteria water usage based on 15 sf per person or seat (UBC Table 1o-A); 30 gpd per seal (Attachment O); assumed 50"10 of the cafeteria makes up the dining area. 4. Cammon Support Uses based on amenities such as fitness cenler, etc. Waler usage based on 50 sf per person and 25 gpd per person (Attachment ol. 5. Per Redwood Cily's direction. an office water rate of 0.08 gpdlsfwas used. BKF Engineers - 5/2112009 K:\ENG08\086028\Calcs\SRWC-WaterUsage_ 05-21.09 _RWC _method.xls