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The marina water service feeds 350 hose bibs. AW WA method (fixture count) shows a peak <br />flow rate of I 58 gpm. AW WA recommended design capacity for a 2 inch displacement meter <br />(80% of capacity) is 130 gpm (maximum capacity of the meter is 160 gpm). <br />One - 2 inch meter is marginally over recommended capacity. <br />Two — 2 inch meters are more than adequate. <br />One 4 inch meter is tremendously over capacity (500 gpm) and is not warcanted. <br />We would even suggest that one twa inch meter would probably be adequate because: <br />I) This is a"interim" meter service. The pertnanent meter service and RPBA will be <br />moved to a new location at a proposed marina service building in about 2 years (with the <br />new parking lot construction noted above). <br />2) Pressure head loss from the increased Flow rate is not a concern at this location. Static <br />pressures is 1 I S psi per GIS map. <br />3) If the design peak flow rate is exceeded, the consequence is lower delivery rate at thc <br />hose bibs for that limited period of time. <br />4) Peak tlow rate will probably only occur during warm days when people wash boats. <br />Two sets of revised drawings are attached. A third set with the revisions noted by yellow high lighting is <br />also included for your convenience. <br />Please inform us as to your decision on items 5 �nd G where we request modification of the revisions you <br />listed. <br />Thank you for the quick rcvicw of the design and your patience as this design evolved. <br />Pago 2 0( 2 <br />C1Uocumenu anJ ScuingsU'A1ck�Y\I.ocal SettingsCl'em{rorary Intemet Files\OLl:l2trnomo_Paul MeRce 021905.doe <br />