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Our Sewer crew maintains the complete <br />system of sewer lines and retention basins. We do <br />TV inspection for early detection of structural <br />problems, possible root infiltration, or possible <br />collapse. We clean lines to allow maximum flow <br />and reduoeback-ups. Last year we cleaned 7.9 <br />miles with drag line and bucket. This is for the <br />worst lines. Our jet rodder {hydraulic cleaning) uses high pressure water to move dirt and debris <br />which is then vacuumed out at the manhole. 68 miles were cleaned using this method. We <br />would like to be able to clean the entiFe system every five years. We also cleaned 4,796 catch <br />basins. This is part of our stormwater management plan. Combined with regular street <br />sweeping, it helps to keep pollutants out of our combined sewers and, more importantly, out of <br />the river. We began a pilot program to plant <br />wildflowers in retention basins. This holds down <br />mowing costs, saving equipment wear and tear; it <br />also looks nice. Providing a natural habitat is a <br />win win sitcxation. <br />Our Wastewater Treatment Plant processed <br />11.8 billion gallons in 2U04 = 32.2 million gal/day; <br />this produced 4,000 tons of high qu&lity biosolids <br />i ?' <br />~~ <br />,,;.. <br />~~ <br />- a. <br />. ;~r- <br />that are rich in fertilizer and soil cat~ditinning value and can be land applied. Modifications to <br />secondary aeration tanks will allow the plant to ran in different modes depending on weather <br />conditions. Because of these improvements we will be able to handle higher vohune wet <br />weather flow and reduce overflows into the river. In December, we submitted our Long Term <br />Control Plan to IDEM fior review. Phase I will install storm sewers at locations that are prone to <br />backup and basement flooding during rain events. It will cost $118 million and take 7-10 years <br />to implement. This action will reduce CSO events by 4U%. Phase II of the plan has analyzed <br />several alternatives. Before moving ahead, we need better information to make the best decision. <br />Ian~provements in technology could provide a more cost effective fix. Toward that goal, we are <br />partnering with Notre Dame and the State 21 ~ Century Technology Fund on a project to develop <br />embedded sensor networks that would create "smart valves" in the system. This research could <br />A-28 <br />