Due to its age, the decision was made to replace rather than repair the station. The new lift station has two separate wet wells with the capability to isolate one in the futureĪccording to Matt Anderson, the Utility Director for the city of Natchitoches, the master station that was replaced was approximately 25 to 27 years old. The new lift station’s average flow is about 2 million gallons a day (MGD) and 6 MGD during peak flow. Operators can monitor run times, engine status and pump status. The controls are all touch-screen and very easy to use. The motor control center, according to the lift station operators, is unprecedented. The manufacturer supplied a cellular modem for the SCADA system so the system can be monitored and adjusted as needed. The city also took advantage Gorman-Rupp’s Integrinex® advanced control technology. The pumps operate at minimum speeds that can be easily increased. Equipment operators can monitor each pump based on flow into the wet well and adjust the speed accordingly. When it came to programming these pumps, the process was user-friendly. The original master lift station had four 12” pumps. But, there was really no easy way to maintain it, according to Shuler. At one point, the city looked at a variety of pump configurations for the old station. The lift station is also close enough to the previous property that the gravity lines were able to be easily rerouted without going a great distance. On a piece of land four times larger than the old one, the new station gives the city the ability to operate a crane truck inside the building for pulling a pump, motor or other equipment.Īt one point, the city looked at a variety of pump configurations for the old station The new property the company ended up building on for the city of Natchitoches is several acres, and the new station is in the middle of it. “ So beyond just the normal engineering side of it, you had some customer issues – so moving away from its current location was something very advantageous for the city.” Master lift station “ When you have that much sewage going into a very small wet well, corrosion becomes an issue. In addition, the lift station was at limited capacity, as it only had four pumps.
According to Henry Shuler, Owner and Consulting Engineer for Shuler Consulting Company, one of the biggest issues with the old station was its location, which was in a tiny city lot crammed into a corner between the road and a commercial business.
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