Laserfiche WebLink
SECgIO~R IV GENER.~L ~ECWIdICAL REQl11REflAEd~TS: <br />4.09 Calcu/afion of Sewage Flow and Characteristics <br />A Where gallons per day and pounds of biochearical oxygen demand (BODs} per day <br />can be obtained by measurement of existing conditions, such data may be used. This <br />allows local health officials to require installation of a meter located to measure flow <br />into the individual sewage disposal system. <br />B. For new facilities the following "Table of Quantities and BODs Strength of Sewage" <br />may be used as a guide to represent average conditions. <br />C. Maximum flow shall be considered as 150 percent of average daily flow and shall be <br />the basis for design purposes unless otherwise established by evidence satisfactory to <br />the health officer or his/her designated representative. <br />D. To calculate the sewage flow for dwellings and mobile homes, use a figure of two <br />persons per bedroom. <br />E. In no event may the system be designed fora -esser capacity than the anticipated <br />maximum daily sewage or wastes in the system. <br />F. The local health officer or his/her designated representative may, at his/her discretion <br />allow reduction in design flow for proven permanently installed water conservation <br />devices. Reduction rates will be based on flow rate information supplied to the local <br />health department for comparison with standard accepted rates for each fixture that <br />utilizes water conservation devices. <br />G. The local health officer or his/her designated representative may, at their discretion, <br />require an increase of average daily flow up to 100 gaUperson/day for large or more <br />costly dwelling. <br />24 <br />