Case Studies file drawer

Leading the way in environmental infrastructure maintenance since 1949

Carylon companies have been providing superior service nationwide for decades. Our unmatched expertise, which includes proprietary equipment and processes, allows us to successfully complete even the most demanding projects safely, on time, and on budget.

Pressure Pipe CIPP Lining

  • Case Studies
  • CIPP Lining

In March 2024, National Water Main Cleaning Company took swift action to repair a critical sanitary sewer force main in New London, Connecticut, using advanced pressure pipe lining techniques. Discover how NWMCC’s design-build approach ensured success ahead of New London’s tourism season. Download the full case study:   PIPELINE AND LINER SPECIFICATIONS Pipe Type: Sanitary […]

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Protective Coating Installation at Lake Arlington Lift Station 

  • Case Studies

Ace Pipe Cleaning  Ace Pipe Cleaning successfully completed a job in the City of Forth Worth that involved installing Warren coating on a new Lake Arlington Lift Station. The project is owned by City of Fort Worth and was designed by Freese and Nichols. The trench-style wet well is roughly 61’ x 19’ x 48’ […]

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Geopolymer Rehabilitation of Storm Drain in Chula Vista

  • Rehabilitation

National Plant Services When it comes to pipe rehabilitation, several options are available to asset owners: CIPP, Slip-lining, SAPL, FRPs, and Spiral Wound. Each method has advantages and disadvantages depending on the pipe being rehabilitated. The decision regarding which method is best depends on several factors such as pipe size, length, access locations, hydraulics, environmental […]

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Confined Space Entry for Bridge Inspection in Tuscaloosa

  • Confined Space Inspection

Video Industrial Services Video Industrial Services (VIS) received an unusual call from a regular customer. The Alabama Department of Transportation (ALDOT) does biennial inspections of all the state’s bridges to ensure there are no signs of structural fatigue or failure. A recent addition to their interstate system was an arch suspension crossing in Tuscaloosa. To […]

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South Alabama Chemical Plant Stormwater Remediation

  • Stormwater Remediation

Video Industrial Services, Inc. In July, Video Industrial Services (VIS) was selected by a large environmental contractor to assist with stormwater remediation at a large chemical manufacturing facility in south Alabama. This project included the cleaning and inspection of the stormwater conveyance system throughout the facility. The original project scope consisted of the cleaning of 200 […]

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Watermain Tunnel Inspection and Rehabilitation in the Village of Forest View

  • Water Main Inspection & Leak Detection

  National Power Rodding National Power Rodding (NPR) recently completed a project for the Village of Forest View, Illinois. The village asked NPR to investigate a tunnel shaft that served as a conduit for a 12-inch diameter watermain. The village knew there was water infiltration but was unsure of the source. The watermain was 100 […]

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NPR Takes a Dive in South Bend – Underwater Root Removal

  • Root Removal

In May of 2023, National Power Rodding (NPR) from Chicago, Illinois, was contacted by the municipality of South Bend, Indiana, to manually remove a large quantity of roots blocking a seven-foot diameter pipe located roughly fifteen feet deep. The only issue was that the pipe was partially submerged underwater, making it somewhat difficult to access. […]

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Multi-Sensor Inspection of Jefferson County’s Large Diameter Interceptors

  • Multi-Sensor Inspection

Recently, Jefferson County in Alabama, a long-term customer of Video Industrial Services (VIS), needed to perform multi-sensor inspection (MSI) on their large diameter interceptors through heavily wooded easements to determine if and when rehabilitation was necessary. […]

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UV Lining for Culvert Rehabilitation on I-65

  • CIPP Lining

Video Industrial Services (VIS), in partnership with National Water Main Cleaning Company (NWMCC) and Bio-Nomic Services, Inc., won a long-term contract with the Alabama Department of Transportation to clean and line a series of small to large culverts along the I-65 interstate. These culverts ranged from 8” to 36” in diameter, and up to 54” diameter pipes. […]

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Arthur Dr. and Regency Dr. CIPP Storm and Sanitary Sewer Lining

  • CIPP Lining

Location: Edgewater Park Township, Burlington County, New Jersey Project Completion Date: Summer 2019 Client: Township of Edgewater Park Carylon Operating Company: National Water Main Cleaning Co. Services Performed: UV Cured-In-Place Lining, Manhole to Manhole Lining, CIPP Trenchless Point Repairs This project involved the rehabilitation of an existing storm sewer, consisting of approximately: 243 linear feet of 12″ pipe 189 […]

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Village of Tarrytown Storm Sewer CIPP Lining

  • CIPP Lining

Location: Village of Tarrytown, NY Project Completion Date: October 2018 Client: Village of Tarrytown Carylon Operating Company: National Water Main Cleaning Co. Services Performed: UV Cured-In-Place Lining This project involved the rehabilitation of an existing storm sewer, consisting of approximately 620 linear feet of 36″ corrugated metal pipe, in Tarrytown, New York. Approximately 530 ft. of the 620 ft. […]

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Closed Loop System for Coal Combustion Residual Dredging and Dewatering from A Recycle Pond with Landfill Placement

  • Disposal and Reuse of Residuals
  • Sludge Dewatering

Location: Orlando, FL Project Completion Date: 2013 Project Budget: ~$1 Million Client: Orlando Utilities Commission Carylon Operating Company: Mobile Dredging & Video Pipe and Metropolitan Environmental Services Services: Coal Combustion Residuals Dredging, Dewatering, Landfill Placement, Water Treatment Project Background The Orlando Utilities Commission (OUC) Stanton Energy Center’s power generating station began operation in 1987. One of their recycle basins is […]

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Closed Loop System for Coal Combustion Residual Dredging and Dewatering from A Recycle Pond with Landfill Placement

  • Sludge Dewatering

Location: Orlando, FL Project Completion Date: 2013 Project Budget: ~$1 Million Client: Orlando Utilities Commission Carylon Operating Company: Mobile Dredging & Video Pipe and Metropolitan Environmental Services Services: Coal Combustion Residuals Dredging, Dewatering, Landfill Placement, Water Treatment Project Background The Orlando Utilities Commission (OUC) Stanton Energy Center’s power generating station began operation in 1987. One of their recycle basins is […]

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Cline Avenue Highway Spill

  • Hydro Blasting
  • Wet/Dry Vacuum Cleaning

Location: East Chicago, IN Client: Private Trucking Company Carylon Operating Company: National Industrial Maintenance – Indiana Services Performed: Hydro Blasting, Wet/Dry Vacuum Cleaning Project Completion Date: January 2-4th, 2019 Right after the new year, a truck carrying pig-fat-based industrial lubricant spilled on Indiana’s southbound ramp between Cline Avenue and the eastbound Interstate 80/94. Though the material itself was nonhazardous, […]

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St. Joseph’s Power Plant Maintenance

  • Hydro Excavation

NIM has proven to be a one-stop-shop for most customers. After months of cleaning frac tanks heat exchangers, water tanks, vac services, and general plant maintenance NIM has been given the chance to flex their hydro-excavation muscles by line locating, potholing, and trenching. This customer is upgrading their facility by adding extra ground wire throughout the facility. […]

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Montecito Sanitary District Mudslide Cleanup

  • Digital TV Inspection
  • Lateral Service Line Inspection and Sealing
  • Manhole Rehabilitation
  • Sewer Cleaning

After the California mudslides in January 2018, National Plant Services was contacted by the Montecito Sanitary District to assess damage in sewer lines, clean manholes that were charged to the top with mud, internally cap laterals from houses that were washed away or red-tagged, repair broken lines, and assist their crew as needed. […]

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Forest Hill Lake Dredging

  • Hydraulic Dredging

Forest Hill lake project finished under budget, early The lake is back in Forest Hill Park—under budget and ahead of schedule. “That’s what you call a successful project,“ said Eric Zeigler, excavation manager for Metropolitan Environmental Services Inc., an Ohio-based company that did the work in five months instead of six. The lake, more than […]

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Cobb County/Marietta Water Authority

  • Hydraulic Dredging
  • Sludge Dewatering

Georgia Water Authority Performs Major Dredging Job In Record Time Experienced public works directors don’t need a crystal ball to see into the future. When the U.S. EPA (Environmental Protection Agency) established new water quality regulations in 2005, the public works officials in CobbCounty, Georgia (GA), knew that major rehabilitation work at their water treatm […]

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Texas City Refinery Sewer Project

  • Digital TV Inspection
  • Sewer Cleaning

Following the findings of the investigation of the March 23, 2005 explosion in the ISOM unit, BP initiated its BWOM (Benzene Waste Oil NESHAP) Program to eliminate Benzene releases into the air, ground and ground water. Specialized Maintenance Services was called on to handle the portion of the program requiring the cleaning and inspection of all storm sewer piping. […]

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Village Creek WWTP Tunnel Inspection

  • Digital TV Inspection

VIS was selected for this project to provide man-entry inspection and assessment of approximately 3,273 LF of 132” sanitary sewer influent tunnel. In addition to CCTV inspection of the tunnel to assess the structural integrity of the tunnel, the VIS man-entry crew performed pH testing and pick-testing of the cast-in-place concrete tunnel lining and recorded existing debris levels. […]

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City of Memphis Sanitary Sewer Evaluation and Rehabilitation Program

  • Digital TV Inspection
  • Sewer Cleaning

VIS was selected for this project to provide sanitary sewer cleaning and evaluation services to the City of Memphis SARP10 Sanitary Sewer Evaluation and Rehabilitation Program […]

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New Jersey Department of Transportation

  • Hydraulic Dredging
  • Sludge Dewatering

MDVP hydraulically dredged 48,900 cubic yards from the navigation channel at St. Georges Thorofare. The dredged material was pumped to the beach in Absecon Inlet located in Brigantine, NJ. A bulldozer was used to contour the fill to match the existing beach elevations and natural slopes. […]

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Lower Crum Creek Reservoir Dredging

  • Hydraulic Dredging
  • Sludge Dewatering

In the first phase of the contract, MDVP utilized an 8 inch swinging ladder hydraulic dredge to remove approximately 6,500 cubic yards of sediment and organics for the Lower Crum Creek Reservoir in Media, PA. […]

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Borough of Avalon Hydraulic Dredging

  • Hydraulic Dredging

Borough of Avalon 2014 Back Bay Dredging Maintenance Dredging Project. MDVP provided a 14 inch hydraulic cutter suction dredge, booster pump and 14,000 feet of pipeline and crew to dredge the Back Bay of Avalon, NJ. The channel and coves had shoaled in with sandy sediments from Hurricane Sandy and the sediments needed to be removed for safe access for public boating. Approximately, 80,000 cubic yards were dredged including material from private slip owners and placed in a confined disposal facility. […]

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Amos Fly Ash Pond Closure

  • Hydraulic Dredging

MDVP utilized a 12″ cutter suction dredge to hydraulically dredge approximately 500,000 CY of fly ash to create a series of channels on this pond closure project. MDVP strategically placed the dredged sediments throughout the pond to facilitate follow-up capping. […]

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Silver Lake Phase IV Dredging

  • Hydraulic Dredging

MDVP hydraulically dredged 150,000 cubic yards of sediment from Silver Lake. Sediment was pumped approximately 6,400 feet to a CDF. Effluent from the CDF was treated with a polymer to achieve strict lake water quality standards. […]

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Power Plant Boiler Outage

  • Hydro Blasting
  • Tank Cleaning

Covanta had a scheduled full boiler outage in October 2017. The scope of work included ash removal in the baghouse area, sifting conveyers, ram and additional hopper cleaning throughout the facility […]

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Shark River Channel Improvements

  • Hydraulic Dredging
  • Sludge Dewatering

The scope of work included dredging and dewatering of 102,000 cubic yards of sediment. Work was performed dredging with a 10 inch swinging ladder dredge pumping through over 6,000 feet of pipeline. […]

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Large Diameter Sewer Cleaning

  • Sewer Cleaning

The City of Sunbury advertised for bids a cleaning of an 8 foot combined box culvert sewer and Mobile Dredging and Video Pipe was awarded the contract. […]

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Sanitary Sewer Joint & Lateral Testing and Sealing

  • Lateral Service Line Inspection and Sealing

Mobile Dredging and Video Pipe works under a multi-year maintenance contract with New Castle County to perform testing and sealing of sanitary sewer joints and laterals. Under the supervision of Arcadis,  16,000 LF of 8” sanitary sewer (3,700 joints and 220 laterals) were tested and sealed in 2017. […]

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