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1987-055
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1987-055
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Last modified
8/29/2022 12:23:30 PM
Creation date
9/30/2015 5:08:47 PM
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Resolutions
Resolution Number
1987-055
Approved Date
06/16/1987
Resolution Type
Sanitary Sewer
Entity Name
Camp dresser & McKee
Florida Department of Environmental Regulation
Subject
Engineering study for Rockridge sewer improvements
Area
Rockridge
Supplemental fields
SmeadsoftID
2533
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1 <br />' <br />the existing population plus <br />the future <br />new population. These <br />statistics <br />substantially developed in 1972. The EPA does not want to construct new <br />are summarized below. <br />sewers in an undeveloped area as a means of promoting growth. Therefore, <br />the EPA developed the "two-thirds rule" as a criterion for determining <br />grant eligibility. It states that the ratio of 1972 service area flows to <br />future projected flows must generally be greater than two-thirds. <br />Future <br />Total <br />Future <br />Total <br />Study Present Add'l <br />Future <br />Present Add'l <br />Future <br />' <br />Area DU's DU's <br />DU's <br />Population Population <br />Population <br />Rockridge 422 10 <br />432 <br />1,013 24 <br />1,037 <br />' <br />5.3 FORECAST OF WASTEWATER <br />FLOWS <br />' Future wastewater flows are based on the future population projections <br />presented in the previous section. Flows will remain constant since the <br />Rockridge area is built out. <br />Table 5-1 demonstrates the steps in calculating future flows for the <br />' study area, in which the total future flow is 0.3944 mgd. The same flow <br />factors described in Section 4.3 are used in projecting future flows. <br />5.4 "TWO-THIRDS RULE" EVALUATION <br />' <br />The EPA will only fund new collection systems for areas that were <br />substantially developed in 1972. The EPA does not want to construct new <br />' <br />sewers in an undeveloped area as a means of promoting growth. Therefore, <br />the EPA developed the "two-thirds rule" as a criterion for determining <br />grant eligibility. It states that the ratio of 1972 service area flows to <br />future projected flows must generally be greater than two-thirds. <br />To determine compliance with the two-thirds rule, blocks in each study area <br />' <br />are grouped into service areas, based upon a preliminary layout of the <br />collection system. The study area, shown in Figure 4-1, is one service <br />area. Table 5-2 presents the results of the two-thirds rule for Rockridge <br />' <br />and the service area complies with the two-thirds rule. <br />' IRC.FL1 <br />6/4/87 <br />5-2 <br />
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