AgdaPkt 2003-05-12 - Laserfiche WebLink

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DRAFT URBAN WATER MANAGEMENT PLAN The water use forecasts assume the following: ❑ Normal Weather. The forecasts do not reflect the year -to -year variation that can be caused by fluctuations in temperature and rainfall. The forecasts are based on normal weather conditions. ❑ No Additional Conservation. These base water use forecasts do not include passive or active water conservation. ❑ Multiple - Family Housing Growth. Almost all the new growth in housing is predicted to occur in the multiple - family housing sector. Redwood City is largely "built out" with respect to lots for new single - family homes. Most of new multiple - family growth is expected by the RWC Planning Division to be large -scale projects. The forecasts are based on fifteen large projects identified by the planning department. Changes in these projects could materially impact the water use forecasts. ❑ Unaccounted for Water. The water use totals factor in a 4% increase to reflect unaccounted for water in the distribution system; it equals the difference between the water put into the water distribution system and total billed water use. For the calendar year 2000, this mass balance accounting shows unaccounted for water use equals 4.4 %. This includes water for fire fighting, distribution main flushing, storage tank cleaning, under- reporting meters, and system leaks. For the future years, the forecast calculation assumes unaccounted water use will be 4.0 %. Having an unaccounted for factor of about 4.0% is relatively good; comparable water systems typically experience unaccounted water from 5 to 10 %. The base water use forecast is shown in Figure 1.2. Table 1.2 Base Water Use Forecast Annual Water Use in Acre Feet per Year c ustomer Class 2000 2005 2010 2015 202 Single Family 6,014 6,058 6,081 6,101 6,11 Multiple Family 2,356 2,578 3,181 3,534 3,746 Commercial 2,355 2,461 2,514 2,583 2,62 Irrigation 1,736 1,870 2,062 2,191 2,286 Cher 135 141 144 148 151 naccounted for 574 524 559 582 597 otal AFY 13,170 13,633 14,541 15,140 15,52 otal Million HCF 5.74 5.94 6.33 6.60 6.7 T otal Average MUD 11.76 12.17 12.98 13.52 13.8 The water use forecasts assume the following: ❑ Normal Weather. The forecasts do not reflect the year -to -year variation that can be caused by fluctuations in temperature and rainfall. The forecasts are based on normal weather conditions. ❑ No Additional Conservation. These base water use forecasts do not include passive or active water conservation. ❑ Multiple - Family Housing Growth. Almost all the new growth in housing is predicted to occur in the multiple - family housing sector. Redwood City is largely "built out" with respect to lots for new single - family homes. Most of new multiple - family growth is expected by the RWC Planning Division to be large -scale projects. The forecasts are based on fifteen large projects identified by the planning department. Changes in these projects could materially impact the water use forecasts. ❑ Unaccounted for Water. The water use totals factor in a 4% increase to reflect unaccounted for water in the distribution system; it equals the difference between the water put into the water distribution system and total billed water use. For the calendar year 2000, this mass balance accounting shows unaccounted for water use equals 4.4 %. This includes water for fire fighting, distribution main flushing, storage tank cleaning, under- reporting meters, and system leaks. For the future years, the forecast calculation assumes unaccounted water use will be 4.0 %. Having an unaccounted for factor of about 4.0% is relatively good; comparable water systems typically experience unaccounted water from 5 to 10 %. The base water use forecast is shown in Figure 1.2.