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Final Report <br />City of Paris, Texas <br />Wastewater Collection System Capacity Analysis <br />The monitoring period graph shows the hourly average flow data and hourly accumulated <br />rainfall for the entire monitoring period. This allows easy interpretation of the overall <br />effects of rainfall on the system. Additionally, each day is colored as green or blue. The <br />color green denotes that the day was used in the calculation of a dry week day while blue <br />indicates a dry weekend day. Days that are not colored are either wet days or days that <br />were excluded from the dry day calculations because of the established dry day criteria. <br />In the area under each day you will also observe that some of the days are colored with <br />gray and various shades of purple. The gray period is typically the day prior to the storm <br />which is used in the determination of this days deviation from the calculated dry day <br />averages. The shades of purple indicate that the period was defined as a storm event. By <br />quantifying each part of the storm the total volume and the rate response can be <br />compared. <br />Figure 7- Example Dry Day Graph <br />Dry Weather Flow <br />PRO S <br />0.55 <br />0.50 <br />0.45 <br />C) 0.40 <br />~ 0.35 <br />0.30 <br />025 <br />0.20 <br />3 6 9 12 15 18 21 <br />Hours <br />The Average Dry Day graphs indicate the hourly variations of flow that occur at the <br />monitoring site. This is used as the basis of the flow loading for a collection system <br />hydraulic model. <br />Figure 8- Example Storm Event Graph <br />1.5 <br />~ <br />~ <br />E 1.0 <br />3 <br />0 <br />~ <br />o.s <br />21 Sun 22 Mon 23 Tue 24 Wed 25 Thu 26 Fri <br />Apr 96 1Dat. <br />0.20 <br />0.15 A <br />m <br />~ <br />, <br />d <br />0.10 <br />~ <br />° <br />0.05 <br />~ <br />n <br />N <br />- <br />0.5 <br />i <br />1 G <br />Storm Event - 04/22/96 08:00 <br />PR08 <br />