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4. Dye Water Flooding 5. Internal Cleaning and TV Inspection • 6. Mapping 7. Final Report Temporary Flow Monitoring In order to perform an I/I analysis and establish the existing capacity being used during dry and wet weather, it will be necessary to obtain flow monitoring information during both dry and wet weather. Under ideal conditions, multiple events are recorded to establish the volume of extraneous water that enters the collection system. From this collected data the inflow response for each storm event is determined. Information obtained during the monitoring period will be used to determine the following for each site: 1. Average daily flow-dry weather 2. Peak flow-dry weather 3. Average daily flow-wet weather 4. Peak flow-wet weather 5. Peak inflow rates 6. Total I/I volume 7. In-situ pipe capacity used and remaining (dry and wet weather) By undertaking temporary flow monitoring, the existing performance of the collection system can be determined. (Note: This phase of the sewer evaluation has been completed.) M • anhole Inspection and Condition Assessment Manhole inspections and condition assessments will be an important task during the course of the system evaluation. Many hydraulic problems within the collection system will be identified during this phase. Manhole inspections will provide basic data including line size, depth from rim to invert, and pipeline cover (i.e. street, yard, easement, alley, etc.). The casting/cone condition and manhole cover will be evaluated for such items as vented covers that are in low-lying areas since casting/cone connection and covers are possible sources of inflow. 1. Manhole walls will be checked for integrity and signs of root intrusion, deterioration of mortar joints, loose or missing bricks, signs of surcharge, etc. 2. The bench will be checked for type and depth of debris, flow conditions thru the manhole and any signs of settlement that may impede the achievement of design flows. 3. Influent and effluent lines in each manhole will be compared to existing maps and corrections noted. All sewer line to manhole connections will be inspected to determine if any manhole settlement has separated or sheared pipelines. 4. Inspection of each influent and effluent line to determine line conditions. 5. Silt depositions that reduce flow capacity will be noted and depth of silt recorded. Smoke Testine Smoke testing will provide detailed information on wet weather inflow sources. In order to maximize the identification of inflow sources, it will be important to complete smoke testing during dry soil conditions. Soils that are saturated will not allow smoke to exit. One item of critical