Site work for a water / sewer project in Westminster, South Carolina. Completed plans call for site work for a water / sewer project.

If you have any questions regarding this RFP or terms or conditions, please contact westinfo@westminstersc.org. No bid may be withdrawn for a period of sixty (60) calendar days after the bid opening. The City of Westminster, South Carolina is requesting proposals, from Electrical Contractors, licensed in the State of South Carolina, to perform Electrical and Building construction services. Specific services shall include all duties typically expected of an Electrical/Construction company. The selected contractor will in accord with attached drawings: 1. Provide a steel building situated on a concrete pad 2. Provide electrical wiring and components for two 300HP VFDs and building 3. Provide electrical wiring from the VFD building to the Pump Platform 4. Provide connectivity between VFD building conductors and existing Platform Raw Water Pump conductors. The present basic constructs of the City Water System are: 1.1. Two 500HP "Raw Water" pumps located at the Chauga River pumping station to transport the water to the City Water Treatment plant 1.2. Numerous pumps within the City Water Treatment Plant moving the water between the water treatment stages 1.3. Finished water pumps to transport the purified water to the City Water Towers which maintain pressure and storage of the water distributed to the residents and commercial companies in the City. 1.4. Water Treatment Plant lighting, heating, and air conditioning, etc. are of "less efficient" operating costs. Each of the above constructs have opportunities for improvement in efficiency (read savings of City expense toward the Water System). The Raw Water pumps are tasked to push approximately 2 million gallons per day over a distance of 2 miles. 1.5. The flow resistance of the piping over that distance represents the horsepower needed to get that amount of water transported. 1.5.1. If the flow rate is reduced, the energy to pump water to the Treatment Plant is reduced exponentially 1.5.2. Instead of keeping the Raw Water pumps running and reducing the flow to match the City's water demand by choking the flow with valves, electronically controlling the Raw Water pumps' flow to only what is necessary during daily operation is where the huge difference of pump energy is realized (Money savings for the City) 1.5.3. The existing Raw Water pumps are capable of approximately 4 million gallons/day and the City usage is approximately 2 million gallons/day. The aged 500HP (Already de-rated to 300HP) pumps shall be replaced with more efficient (VFD Capable) 300HP pumps. 1.5.4. Modern "Variable Speed Drive" control systems are capable of remotely controlling (utilizing the City's "remote data acquisition system") the Raw Water Pumps such that the most economical flow rate from the Chauga River pump station can be achieved. 1.5.5. Modern "Variable Speed Drive" control systems are also designed to protect motors (in this case the City's water pumps) to avoid costly motor rewinds and other costly maintenance. (Also money savings for the City). 1.6. The numerous pumps with the City Water Treatment System are utilized as a "choreographed" set of pumps to match the Raw Water Pump subsystem and Water Treatment Plant with the City water demand. 1.6.1. The Water Treatment Plant water pumps presently are semi-automatic and are manually choreographed by the Water Plant operation Experts. 1.6.2. By utilizing the modern "Variable Speed Drive" control systems, the efficiency of the pumps are improved and more importantly, the pumps are controlled by the advanced VFD control system which utilizes the "remote data acquisition system" to "load follow" the City Water usage which is in synch with the Raw Water Pump flow. 1.7. The Water Treatment Plant finished Water Pumps (two of the three 125HP) are presently VFD controlled by the Water Plant expert operators. The third (and old) 125HP pump is "emergency only" and exercised monthly to keep bearings lubricated in the event it is actually needed. 1.7.1. These finished water pumps have been elevated in their efficiency by the modern VFD control system and experience the enhanced protection of the motors and expected extended life. 1.7.2. The choreographed utilization of the finished water pumps will also reduce their energy requirements in accord with the Raw Water pump reduction in flow which will also reduce their flow requirements and afford the City reduction in operational expense. 1.8. The existing City Water Treatment Plant was constructed in 1979. The internal heating, cooling, lighting and small motor controls are very dated and much less efficient than that of more recent technologies. 1.9. The two 500HP Raw Water Pumps that have served the City of Westminster and outlying areas were manufactured in 1969 and are planned to be replaced (in near future) with two 300HP motor/pump assemblies that are designed for VFD operation. 1.10.Two 300HP VFDs have been purchased in anticipation of the new 300HP VFD capable motor/pump assemblies. 1.11.The 300HP VFDs are planned to be housed in a steel building situated within 300 feet of the Raw Water Pump Platform with electrical conductors traversing from the VFD building to the existing Raw Water Pump Platform. We respectfully request bids on the above (1.11) project requiring construction of: (1) Provision of a steel building situated on a concrete pad (2)Provide electrical wiring and components for two 300HP VFDs and building (3) Provide electrical wiring from the VFD building to the Pump Platform (4) Provide connectivity between VFD building conductors and existing Platform Raw Water Pump conductors. The attached five documents (Exhibits A, B, C, D and E) contain technical requirements. The successful bidder shall adhere to General and accepted Industry Standards for installation and safety on this project. Ultimately, each of the projects above shall be integrated and controlled either by one central control or by distributed control such that optimum efficiency of the City Water System is obtained. The City's "Water System data retrieval system" shall be interfaced with the new 300HP motors/pumps such that the SCADA data is available for overall water system optimization.