Aerial Pipeline Maintenance Survey

There are 36,254 miles of gas pipeline in New England. Our aerial inspections are performed by a commercial pilot along with an experienced gas consultant.

Slow passes over high pressure pipelines allow for prompt integrity checks of transmission systems that are not otherwise easily accessible. Lines are visually inspected for hazards, such as new construction, terrorism and fallen trees. This survey can be combined with our off-road all-terrain-vehicle (ATV) survey for complete inspectional coverage.

Construction Inspections

It goes without saying that every construction site is unique. However there are procedures that are to be followed, especially safety regulations that protect workers as well as the citizens nearby.

For example, in the case of terminating an old gas service after installing a new service:

• checking placement of traffic signs and cones
• re-direction of vehicular traffic if applicable
• proper tools used for the removal
• proximity of fire extinguisher(s) and first aid kit
• ensure that the crew are wearing appropriate protective, flame-retardant clothing including hard hats, visible safety vests and appropriate safety goggles -- when working in a slight-risk environment, protective eyewear is a must to ensure that no damage comes to eyes
• electric safety equipment including harness, grounds, hard line, adequate cover-up, rubber gloves & sleeves
• gas safety equipment including shoring, grounded pipe, ear & foot protection, non-sparking tools
  

Public Building Inspections

Most local laws require public buildings to be inspected annually. This type of survey entails testing for gas leakage, as well as visually inspecting gas facilities in the immediate area of the gas service entrance.

We provide the most complete inspection of large public and private buildings, such as schools, hospitals, theaters, churches and public housing. The building superintendent is notified of the reason for the inspection.

Portable flame ionization is used to check for leakage around the gas service, gas service entrance and meter. An inspection is conducted of the inside shut-off for condition and accessibility.

Combustible Gas Indicator [CGI] readings are taken at the meter installation, point of entry of the gas service, water, sewer, duct and telephone lines and cracks along the street wall in the basement.

Pre-Paving Survey

When the local gas company becomes aware of a road resurfacing or reconstruction project, this survey should be conducted far enough in advance so that any necessary repairs can be completed.

This survey may be a combination of mobile and portable flame ionization, combined with Combustible Gas Indicator [CGI] bar hole testing.

Inspection of Buried High Pressure Service Line Valves

'High Pressure Service Line' means a natural gas supply line from a main gas line to a meter with a pressure rating of 60 psi or greater. High Pressure Service Lines include but are not limited to transmission taps. High pressure service line valves and service lines are checked using flame ionization. Vent terminus location and customer premise record tags are recorded. Gas map accuracy is verified.

Subsurface Survey

This survey is suitable for urban areas. Combustible gas indicator readings are taken in subsurface openings such as electric and telephone manholes, and gas or water shut-off boxes.