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Comprehensive Plan Potable Water Sub-Element <br /> <br /> <br />Community Development Department Indian River County 15 <br /> <br /> TABLE 3.B.5 <br /> INDIAN RIVER COUNTY <br /> FUTURE POTABLE WATER LEVEL OF SERVICE STANDARDS <br /> <br />Single-Family <br />(gal./dwelling unit/day) <br /> <br />Multiple-Family <br />(gal./dwelling unit/day) <br /> <br />Commercial/Industrial <br />(gal./gross ac./day) <br /> <br />250 <br /> <br />250 <br /> <br />2,500 <br />Source: Indian River County Utilities Department <br /> <br /> <br />To account for the larger volumes of water typically used in modern residential and commercial <br />developments, these Levels of Service exceed historical consumption amounts. Generally, the <br />historical data reflect water usage in the older areas of the county. Many of those homes were not <br />equipped with modern water using appliances (such as dishwashers, garbage disposals, etc.) and had <br />smaller lawns to irrigate, compared to more recently developed residential areas. The historical data <br />also reflect the relatively large percentage of vacancies characteristic of multi-family units. This <br />results from the seasonal fluctuations that some areas of the county experience. In the future, the <br />county projects that a larger percentage of homes will be occupied permanently. <br /> <br />Even though multi-family units have fewer people per unit, most new multi-family developments <br />generally have larger green areas and, in some cases, golf courses. As a result, the Utilities <br />Department uses the same level of service for both single-family and multi-family units. In the <br />future, the county's intent is to reduce water consumption by implementing strong conservation <br />measures. Consequently, this may result in lower demand projections and different plant capacity <br />assessments. <br /> <br />Besides the factors referenced above, other level of service standard considerations are as follows: <br /> <br />- Wellfield capacity must be based on average daily use plus the added volume that would be <br />needed if the largest well in the system were out of service; <br /> <br />- Storage tank capacity must be at least ½ of the average daily consumption volume; <br /> <br />- High service pump capacity with redundant pumps must be at least equal to maximum daily <br />demand; <br /> <br />- Pressures for high service pump stations must be a minimum of 40 PSI during peak flows; <br /> <br />- At fire flow conditions, the system must be able to provide a delivery pressure of 20 PSI; and <br />