Site work for a water / sewer project in Farmingdale, New Jersey. Completed plans call for site work for a water / sewer project.

***Apparent low bid from previous bid opening: Sea Machine Manufacturing - $59,000Each GAC containment vessel includes 10 linear feet of 8-inch diameter painted carbon steel pipe that carries water out of the vessel and into a larger common manifold pipe. This Contract calls for removing and replacing the approximately 10 feet of 8-inch diameter steel piping on each of four carbon containment vessels. Also, approximately 6 feet of 8-inch piping between each vessel is to be replaced. Also to be replaced are six, 6" tees and two sections of "H" shaped steel connection piping measuring approximately 9 feet in length. The H shaped section has a 3'section of 3" pipe teed into it. All piping is flanged. All piping to be replaced is marked with colored tape. A site visit before submitting a proposal is recommended. Most of the gaskets connecting the flanged piping to the fittings will need to be replaced by the Contractor. All pipe is rated for 150 psi, while the operating pressure is 30 psi. Any new pipe and flanges must be rated at 150 psi even though the vessel feed pump shut off head is 45 psi. The pipes and are flanged at each end. There is a welded 90-degree bend on each end of two of the pipes and on the H piping. Also, each pipe has a 8" x 6" tee welded to it and two flanges on the other ends of the tee for a total of three flanges per pipe section. Each of these pipes must be removed by cutting the pipe somewhere and removing some of the diamond plate that is used as a work platform. Most bolts and nuts on the three flanges of each pipe were replaced in May of 2024 and can be reused. However, any bolts that are cut or otherwise damaged and need to be replaced are to be replaced with 5/8", grade 8, of varying length between 5"-6", 1-1/8" hex with psi strength rating of 130,000-150,000, zinc coated. The reason for the pipe and fitting replacement is that internal tuberculation reducing capacity and causing excessive pressure drop through the vessels. The new pipe must be Schedule 20 thickness, 304 stainless steel pipe. New stainless steel flanges must also be supplied. Care should be taken to make sure the bolt patterns of the new SS flanges match up with the existing flanges and that the new flanges match the OD of the existing pipe. The "H" pattern pipe section likely cannot be removed or reinstalled without cutting it. It is recommended that two new flanges be installed at the cut location. Alternately, it is to be reconnected by a restrained joint coupling, which does not need to be made of stainless steel but could be. The vessels are located in a lower level of the building with no gravity drainage and it is critical that the new pipe does not leak. There is a sample tap and saddle on each effluent pipe section that must be replaced on each corresponding pipe and reconnected to the existing 1" sample line. The sample tap could be relocated to make room for the pipe coupling. Part of the Diamond plate floor platform may have to be cut away to install the pipe. Diamond plate that is above the effluent pipe sections that is removed will have to be reinstalled by welding. It is anticipated that some of the pipes being supported, in part, by the piping to be replaced will have to be temporarily supported. It is up to the contractor to support the pipes temporarily and to determine the means of support. The owner believes that welding a clip or angle bracket between the existing support cross brace and the 8-inch diameter 12-foot long vertical fill pipe that the tee is connected to will support the two 8- inch vertical steel pipes while the piping below it is removed. Currently, there is a U-clamp connecting it to the support brace. Additionally, 2" x 2" steel angle bracket approximately three feet long could be placed vertically and welded to the existing steel cross bracing in at least two locations to stiffen the existing cross bracing. Wsa B25034w Select Piping Replacement in Gac Vessels 3, 4, 5 & 6 at the Manasquan Water Treatment Plant, 2061 Hospital Road, Allenwood, Monmouth County, New Jersey the Contractor Shall Furnish All Labor, Materials and Equipment Required by the Contract Documents for the Subject Project