FREQUENTLY ASKED QUESTIONS
ACS Underground Solutions was contracted by Mountain Development Corp. to locate a leak on BIC Drive in Milford, CT. There was a suspected leak on a fire line loop system since the jockey pump was continuously cycling on/off. ACS Underground Solutions provided a full system mark out of the fire main. ACS Underground Solutions located three (3) additional water valves on system. This was crucial due to the fact that correlation sensors could now be attached to the leaking fire line. ACS Underground Solutions found one leak on the first attempt on day 1 and after it was excavated and repaired the jockey pump was still cycling indicating additional leak was on system.ACS Underground Solutions went back to site and found subsequent leak.
It should be noted prior company was initially hired for leak detection, Mountain Development Corp dug four (4) dry holes and no leak found by them. Mountain Development Corp. were thrilled with our leak detection services for our accuracy and expertise at pinpointing their leaks.
ACS Underground Solutions was contracted for locating underground utilities at Trinity College located in Hartford, Connecticut. Utilities needed to be located and marked-out as outlined in an aerial photograph supplied by the Client. Area was approximately 100,000 square feet and consisted of a chilled waterline system that was constructed by fiberglass with no working tracer wire. ACS Underground Solutions was able to conducted full system mark out of the chilled water line using Ground Penetrating Radar (GPR). ACS Underground Solutions used a multi frequency GPR which reflected excellent images on our monitor showing hyperboles and verified the lines. Success achieved!
ACS Underground Solutions was commissioned by Connecticut Tank Removal, Inc. for locating underground tank lines and utilities at the Ulbrich facility located in Wallingford, Connecticut. The piping from/to an existing UST and surrounding utilities needed to be located and marked-out. ACS Underground Solutions used a 250Mhz Ground Penetrating Radar (GPR) antenna to search and scan the area approximately 1/4 of a mile. While performing this GPR survey ACS discovered a 10,000 gallon fiberglass Underground Storage Tank (UST). ACS Underground Solutions marked the area out with white paint and flags prior to client's removal of UST.
ACS Underground Solutions was hired by Aarhuskarlshamn USA, Inc.(AAK) to perform a full system video pipe camera inspection of both storm and sewer lines at their plant located in Newark, NJ. The system at AAK was very unusual to ACS Underground Solutions since the inspection of the storm lines depended on the tides. If it was high tide we could not perform inspections because there was too much water and no clarity inside the pipe. We could only inspect the pipes when it was low tide thes having great vision. We had to base our start times for this job around the schedules of the tides sometimes that meant being in NJ at 4:00AM-5:00AM in the morning. So when it was low tide we launched the robotic crawler camera inside the lines ranging from from 12” to 48” we then recorded and investigated the integrity of these pipes. Our camera can run up to 750 feet. All video footage was recorded to DVD and given to the client on site.
ACS Underground Solutions provided Stamford Hospital an in line meter test for accuracy at low flow, mid flow and high flow, the water meter at the hospital was running 25% faster costing Stamford Hospital over $25,000 per year in over-charges.
ACS provided a gas test on the pipe and the leak was excavated in a one hole dig saving the contractor thousands of dollars digging each and every joint.
ACS Underground Solutions was commissioned by SBK Construction for conducting a leak detection survey at Sharon Hospital in Sharon, Connecticut. There was a suspected leak on a steam return line since vapors were surfacing in catch basins. There were 4” steam and 2” condensate steel lines and ran 800’ which included expansion loops. ACS Underground Solutions used thermal imaging cameras to located the lines and pinpoint (2) leaks while shooting images from the rooftop of building. Leaks were then marked on ground in white paint and have since been repaired.
ACS Underground Solutions was contracted by Tri-Star Building Corp/Turner Construction for a concrete scanning survey of internal underslab at Northern Westchester Hospital located in Mount Kisco, New York. Areas needed to be scanned and marked-out by the loading dock in the Generator building and eight (8) additional floors prior to 4” core drilling for install of new communication lines throughout the building. ACS Underground Solutions used a 2000Mhz concrete scanner to find rebar and post tension cables and marked these areas out for client. This mark out was completed with 100% accuracy and no disturbance was caused.
ACS Underground Solutions provided American Pump and Tank with a gas test on the newly installed 12” water main, the gas surfaced on a mechanical joint which was loose and this saved the contractor digging every joint to find his problem.
ACS Underground Solutions conducted a site survey to find the water main for Elmsford NY, the pipe was over 19ft deep and under Interstate 287, a major highway. With the equipment that was brought to site, ACS was able to locate the depth and direction of the pipe, so that the connection could be made, GPR was also used to verify the result.
ACS Underground Solutions got the task of clearing utilities in NYC on 10th and 30th at the West Side Railroad. The job was for Parsons. Fifty five test bores had to be drilled for the developer for new construction. ACS gave the contractor the 55 test bores clearance and the confidence to drill. The job was completed with success.