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GRINDSTONE JOE'S WATER SYSTEM DESIGN CALCULATIONS <br />REQUIRED WASTEWATER HOLDING CAPACITY <br />OCCUPANCY DATA <br />OPERATIONAL PUMPING RELATED CALCULATIONS <br />Average <br />Peak Week <br />Peak Day <br />Source/Notes <br />Occupancy (attendees/day) <br />8 <br />13 <br />85 <br />Per GSJ Staff. <br />Peak day is annual member picnic that occurs 1x/yr and only lasts 6 hours. <br />Overnight Water Use (gallcaplday) <br />N/A 96% of tank capacity <br />40 <br />18 <br />USFS <br />Daytime Water Use (gal/cap/day) <br />Days Between "Time To Pump" And "Exceeding Reserve Storage Volume" <br />20 <br />2 <br />USFS <br />Overnight Water Use (% of total) <br />0.25 <br />Assumed percentage <br />Daytime Water Use (% of total) <br />0.75 <br />Assumed percentage <br />Capacity Calculation (gpd) <br />200 <br />325 <br />425 <br />Peak Day Use estimated for the annual 6 hour member meeting at 20 <br />gal/capita/day, adjusted to the 6 hour time -period. <br />7 -day Required Capacity (gal) <br />1400 <br />2275 <br />N/A <br />Peak Day occupancy does not occur for 7 consecutive days. <br />Required Tank Size with 100% reserve (gal) <br />N/A <br />4550 <br />N/A <br />OPERATIONAL PUMPING RELATED CALCULATIONS <br />a crn r� Co ren <br />t 3 S X �ersans <br />ql <br />o , a <br />d., -j � ZZ <br />Average <br />Peak Week <br />Peak Day Source/Notes <br />"Time to Pump" Capacity (Gal) <br />N/A <br />3,640 <br />N/A 80% of tank capacity <br />"Exceeding Reserve Storage" Capacity (Gal) <br />N/A <br />4,368 <br />N/A 96% of tank capacity <br />Days Between "Time to Pump" Pumping Events <br />18 <br />11 <br />N/A <br />Days Between "Time To Pump" And "Exceeding Reserve Storage Volume" <br />4 <br />2 <br />N/A <br />a crn r� Co ren <br />t 3 S X �ersans <br />ql <br />o , a <br />d., -j � ZZ <br />