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ATTACHMENT 5 Examples of Water Conservation Determinations 1. New Restaurant. Because a new restaurant will not have years of water usage records, a reasonable determination will be made by the Director of Operation Services. If the site was previously used by a restaurant, then the prior restaurant's usage will be considered. And, other restaurants of similar size and operations at other locations can also be compared. The average usage during comparable 60 day billing periods (e.g. compare May & June with other May &June periods) over 1 -4 yea rs sets a baseline average for the new restaurant. If Stage 2 requires a 20% mandatory reduction in water use, then the baseline average must be reduced 20%. See Section 9.30.140 [Calculation of allowable water use for new customers]. 2. Low Water Use Households. During each billing cycle, single-family households will be compared to a city-wide, single-family sector average, specific to a comparable billing period. Households that are equal to and under this average generally will be excluded from penalty charges during that billing cycle. This exclusion helps to ensure households with low consumption are not penalized compared to higher water using households. Households that remain above the city-wide average will be evaluated for compliance using their average usage during the comparable billing period over 1- 4 years of previous use. For example, the following table shows how two households would be evaluated during a billing period where the city-wide single-family sector average was 10 units' of water consumption. Stage 2: Up to 20% Mandatory Stage 3: Up to 35% Mandatory Household considered in Household considered in Household using compliance since it falls under the compliance since usage within 7 units /5,236 city-wide average the expected required reduction from the city-wide average Household using Must reduce 20% to 12.8 units/ Must reduce 35% to 10.4 units% 16 units/ 11,968 9,574 gallons over 60 days 7,779 gallons over 60 days 3. Medical Condition requires Significant Water Use. If a customer has a household member with a medical condition that requires significant water use, the customer can seek an adjustment to conservation requirements. See Section 9.30.120 [Adjustments]. This might involve the medical provider providing documentation which simply says that a member of a certain household needs "X" number of gallons daily for a medical condition. The city would not need to know the condition nor the person's name to protect that person's privacy. 4. Commercial Customer with Higher Usage. Studies of water conservation during droughts in California have shown that certain uses are disproportionately impacted. For example, commercial car washes will have more customers as car washing at home is prohibited. The 1991 plan recognized this behavior change and allowed car washes using recycled water to reduce water usage by a smaller percentage than the otherwise required reduction amount. The proposed amendments do not maintain the special treatment for car washes, athletic clubs, etc. Rather, such uses would need to use the process set forth in Section 9.30.120 [Adjustments]. This will enable city staff to review operations to ensure that water conservation measures and best management practices are being implemented, rather than just provide a partial exemption. 'Water rates and charges are based on units of water. A"C" [Roman numeral"C" = 100] cubic foot (CCF) of water is one unit= one hundred cubic feet = 748 gallons.