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<br /> Section 8
<br /> Conclusions and Recommendations
<br /> The purpose of this section is to present a summary of the conclusions presented in Sections I
<br /> through 7 of this report and discuss options for project implementation,
<br /> 8.1 Conclusions
<br /> The primary objective of this project is for the City and County to collaborate to construct the
<br /> backbone of a water and sewer system Within the Eno EDD that Will promote an effective growth
<br /> pattern in Orange County with respect to location and phasing.in order to develop the backbone
<br /> system,CDM Smith has performed an evaluation of the Eno EDD to develop projected water and
<br /> wastewater.flows,determine what infrastructure will be needed to create the backbone,determine
<br /> where the generated wastewater will be discharged in the City's sewer system,identify potential
<br /> permitting needs,and develop conceptual opinions on probable cost.
<br /> The water demands and wastewater flows developed for the Eno EDD are summarized in Table 8-1.It
<br /> can be seen from the table that the projected average water demands vary from 76,000 gpd in year
<br /> 2020 under the Low scenario to 895,000 gpd by build-out under the High scenario.The projected
<br /> average wastewater flows vary from 60,000 gpd in year 2020 under the Low scenario to 715,000 gpd
<br /> by build-out under the High scenario.
<br /> if Table 8-1.Summary of Average Day Water Demand and Wastewater Flow.Projections by Planning
<br /> Period
<br /> Planning Period god)
<br /> Projectlons[1,2] 2020 2030: 2,040 2050 2060 Build-out -
<br /> Low Water 76,000 176,000 277,000 378,000 479,000 504,000
<br /> Mid Water 105,000 245,000 384,000 524,000 664,000 699,000
<br /> High Water 134,000 313,000 492,000 671,000 850,000 895,000
<br /> Low Wastewater 60,000 141,000 221,000 302,000 382,000 402,000
<br /> Mid Wastewater 84,000 195,000 307,000 419,000 530,000 558,000
<br /> High Wastewater 107,000 250,000 393,000 536,000 679,000 715,000
<br /> Notes:
<br /> 1) The Low,Mid,and High projections differ based on the assumed unit water demand factor for industrial development.
<br /> The Low projection assumed 1,000 gpd/acre,the Mid projection 1,500 gpd/acre,and the High projection 2,000 gpd/acre.
<br /> 2) The wastewater projections are based on an assumed water return rate of 80 percent.
<br /> 3) The percentage of growth between planning periods was provided by Orange County.
<br /> The Eno EDD currently has a 16-inch diameter waterline installed in the project area.Based on a
<br /> hydraulic model analysis,the existing water main has sufficient capacity to meet the near-term and
<br /> build-out demands for the Low and Mid scenarios.There are some minor flow and headloss
<br /> deficiencies for the High flow scenario under build-out conditions,however it would be anticipated
<br /> "M -1
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