Our professional integrity, commitment, expertise, and dedicated mission to "Do It Right" is the foundation of our success.
Cleaning and inspecting Scituate dam water supply pipes
These are twin 60-in 1920 riveted steel pipes, 320-ft long under the Scituate dam, and buried up to the reduction chamber, app 1600- ft total. That water serves all of Providence, East Providence and Bristol County water. We are going to be cleaning and inspecting these pipes, have had CP on these for almost 25 years.
Long Term Asset Management: West Springfield, MA Birnie Ave
In 2017 CorrTech entered into a long-term contract with the Town of West Springfield, MA for the maintenance, inspection, repair and modification of the Birnie St. water storage tank. CorrTech is providing all annual and 5-year comprehensive inspections, washout, emergency repairs, and sanitary repairs. In 2018 CorrTech completed the interior and exterior rehabilitation including capital modifications to the tank. The project, completed on time and in budget, included the complete blast and recoat of interior and exterior tank coatings and the application of new coating systems. CorrTech developed the technical specifications, subcontracted the work to AMSTAR, a reputable and experienced tank painting contractor, provided onsite construction inspection and supervised the tanks return to service. 2018 is the first year of 15-year term tank maintenance contract.
Wastewater: Quantification of concrete deterioration, type and extent- Sedimentation Tanks
NYC DEP Newtown Creek Wastewater Treatment Facility, Brooklyn, NY. CorrTech performed inspection of concrete corrosion in various elements of the sedimentation tanks of the North, South and Central Batteries of the Newtown Creek Waste Water Treatment Plant. Inspection measured the level of pH and chlorides to determine if the rate of corrosion had stabilized, reduced or increased from previous inspection. Inspection quantified required remedial work and level of future repairs in the sedimentation tanks.
NYC DEP Bowery Bay WWTP Primary Tank Rehabilitation
CorrTech performed concrete condition analysis of (15) primary waste water settling tanks to determine depth of biogenic acidic ingress and overall deterioration of concrete walls, beams, columns, elevated roof slab undersides and vertical face of concrete above and below the water line.
Power: PSEG NJ Asset Management Services
Phase I-field monitoring and evaluation of impressed current cathodic protection systems to ensure system performance. CorrTech performed close interval surveys of pipe type cable circuit 1-1361 to evaluate effectiveness of cathodic protection and estimate remaining life of steel conduit system. Analysis of data obtained for system effectiveness. Phase II in the areas identified in Phase I as a concern for stray current interference from other pipe operators, transit systems, or others would consist of closer spaced CIS. Pipe to soil potential measurements were made on 25-ft center to center for a total of 600 ft. of pipe, 300-ft on each side of the area of concern. CorrTech prepared a final report which included all data collected in accordance with NACE criteria evaluation, the final report includes, Summary Report, Profiles-CIS Survey data plotted versus distance, Exception reports including On/Off compliance issues, test station report, GPS report, Rectifier data and Survey instrument calibration certificates. CorrTech presented findings and conclusions including recommended repairs or upgrades with supporting budgetary estimates.
Exelon/Smart Stack, Exelon Nuclear
CorrTech, Inc completed the design/build for the impressed current cathodic protection upgrades at the Dresden Nuclear Power Station in Morris, Illinois. Installation work was performed as part of Phase III of a four-phase upgrade. The cathodic protection upgrade of 2016 consists of a total of 10 additional rectifier units and 42 shallow anode ground beds. The 42 shallow ground beds comprise a combination of 18 shallow vertical wells (each with 3 anodes, totaling 54 anodes), and also 26 distinct horizontal anode arrays (totaling 90 anodes). Each vertical anode column consists of 3 anodes in a 35-40-ft deep, 8 5/8-in diameter hole. Horizontal anode arrays varied in number of anodes but were installed between 3-ft and 5-ft depth. Each anode ground bed consists of conductive anode elements backfilled in conductive concrete material. Each individual anode is wired into a junction box and then connected to a new rectifier. A total of 18 Smart Stack monitoring test stations have been installed to date on the site. A total of approximately 23,000-ft of buried pipe at the site is now receiving cathodic protection.
Transportation: Massachusetts Bay Transit Authority Green Line Extension (MBTA GLX)
CorrTech provided stray current corrosion control design elements that provide an economic approach to long term performance as well as the most effective means and methods to protect MBTA infrastructure from corrosion degradation. A baseline corrosion survey was performed to determine soil corrosivity and identify other potential corrosion exposures along the Green line extension corridor. This forms the basis for understanding and defining corrosion exposures that require mitigation. Stray DC current corrosion control design for running rail negative return transit systems would be implemented during final design elements in accordance with the guidance provided in the project Technical Provisions, Section 8.9.1 Stray Current Mitigation.
CorrTech worked with STV Traction Power design staff during final design to develop elements intended to minimize the generation of stray current. These concepts include maximizing rail to earth resistance, minimizing negative return resistances and minimizing track to earth voltage escalations.
Where stray current control elements in the Technical Provisions provide sufficient control, they would be applied in the final design. Where improvements to the stray current control approach can be made, the best practice approach would be developed.
Where buried infrastructure is located in corrosive soils as defined in the baseline survey, corrosion control details and elements would be required. Corrosion control can be achieved through elimination of one of the four corrosion cell components: anode, cathode, electrical connection or environment. In some cases a material change could be prudent, specialized coatings, corrosion allowance or environment alteration. CorrTech would review and apply the best practice approach for long term performance as determined for the specific structure.
NYC MTA East Side Access: Harold Structures Part 3 Contract CH 057
Specification Section 13115 Corrosion Control Testing
CorrTech provided qualified field personnel working under the direction of a NACE Corrosion Specialist and NY Professional Engineer to test and inspect the corrosion control components as required in specification section 13115 for the NYC MTA project. CorrTech also prepared and submitted report documents as necessary during the course of the project.
GAS/OIL: New Hyde Park Oil Terminal-New Hyde Park, NY (Volatizing Corrosion)
Volatizing corrosion inhibitors were installed into the double floor interstitial space for (1) 46-ft diameter Above Ground Fuel Storage Tanks located at the New Hyde Park Oil Terminal, New Hyde Park, NY. The volatizing corrosion inhibitor was provided to supplement the existing cathodic protection system. The corrosion inhibitors installed satisfy the technical requirements of the NACE International Recommended Practice RP 0487, “Considerations in the Selection and Evaluation of Rust Preventives and Vapor Corrosion inhibitors for Interim Corrosion Protection”, and in accordance with Cortec Manufacturing recommended procedures.
Property Management: Winstanley FW Tanks
CorrTech has provided ROV tank inspection services to several of Winstanley’s New England properties to satisfy NFPA requirements for firewater tanks. In addition CorrTech has designed and installed cathodic protection systems for several tanks which extends the inspection cycle for the firewater tanks. Miscellaneous services provided are tank cleaning, minor repairs such as altitude floats and vent screens
CBRE UT Surveys for Chill Water Piping
As part of CBRE’s systems maintenance and reliability protocol CorrTech performed an ultrasonic thickness survey in accordance with API-570 Pipe Inspection Code utilizing a SonaTest 150 ultra sonic thickness gage of domestic, chilled water and firewater sprinkler piping at the CSC Data Center in Meriden, CT.
