NORTHERN REGION

Barter Island Landfarms

This project required RCI to establish two landfarms in the North Slope village of Kaktovik. The first landfarm entailed the in-situ treatment of POL contaminated soil. Fertilizer was incorporated into the soil and aerated with an excavator. The second site involved the spreading of 450 yds of POL soil into a bermed containment area and aerating it with a tiller attachment towed behind an ATV.

NSB Area Wide Truck Fill Stations

In 2004 Ridge contracted with the North Slope Borough to install truck fill stations in six different villages on the North Slope. This work involved mobilization with the use of DC-6 airplanes and careful coordination with each village corporation. Our tasks included liner installation, fence installation, fuel system installation, site grading, contaminated soil removal and drilling in permafrost.

Oliktok

This scope of work involved the demolition and removal of an entire fuel tank farm and the installation of a new fuel system. Demolition involved removing eight vertical fuel storage tanks totaling over 200,000 gallons. Removal and disposal of product, sludge, piping and pump house. The new system included the installation of two above ground storage tanks, two day tanks, all associated piping, alarms, meters and valves. All new steel materials were applied with industrial coatings.

Wainwright Tank Coating and Containment Upgrades

Ridge Contracting systematically removed a 10,000 gallon above ground storage tank from its fuel containment area, graded the site, applied an industrial tank coating, installed a new liner and performed fence repairs. Under a separate contract LCMF engineers contracted with Ridge to repair a faulty liner in the cities bulk fuel storage area. Cathodic protection was added to the existing fuel lines as well as new pipe coatings.

Barrow Waste Oil Burners

During one of Barrows cold winter months RCI installed eight waste oil burners in multiple buildings for the North Slope Borough. The tasks included pipefitting, HVAC and coordination with other subcontractors.

Kotzebue

Contaminated soil removal and test pitting