Pipeline Safety
Facts you should know

Pipeline Purpose & Reliability

America's pipeline network is used every day to transport products such as natural gas to homes, businesses and industrial facilities. According to National Transportation Safety Board statistics, pipelines are the safest and most economical method of transporting products. Our educational outreach teaches excavating contractors, emergency officials, public officials and the public how to live and work safely near natural gas pipelines.

Our Commitment to Your Safety

CenterPoint Energy is committed to the safe and reliable operation of its pipelines and distribution system in your community. We monitor the operations of our pipelines, which are designed, installed, tested, operated and maintained in accordance with all applicable federal and state requirements. We maintain our safety record with routine inspections, corrosion protection, maintenance and testing programs, employee training and public education. If you live or work near a pipeline, there's some basic information you should know.

For more information on natural gas safety, tour our natural gas safety section by navigating through the links on the left or the related links on the right.

How can you tell where a pipeline is located?

Since most pipelines are buried underground, pipeline markers are used to indicate their approximate location along the route. They cannot be relied upon to indicate the exact position of the pipeline. The markers can be found where a pipeline intersects a street, highway or railway.

The markers display the material transported in the line, the name of the pipeline operator, and a telephone number where the operator can be reached in the event of an emergency.

 The markers display the material transported in the line, the name of the pipeline operator, and a telephone number where the operator can be reached in the event of an emergency.

Pipeline Marker - This marker is the most commonly seen. It contains operator information, type of product, and an emergency contact number.

Aerial Marker - These skyway facing markers are used by patrol planes that monitor pipeline ROW.

Casing Vent Marker - This marker indicates that a pipeline (protected by a steel outer casing) pases beneath a nearby roadway, rail line or other crossing. Sometimes overflow of product may be seen.

What is in a pipeline?

  • Pipelines carry both gaseous and liquid materials under high pressure.
  • Many pipelines contain colorless and odorless products.
  • Many liquids form gaseous vapor clouds when released into the air.
  • Some gases are lighter than air and will rise.
  • Other heavier-than-air gases and liquids will stay near the ground and collect in low spots.
  • All petroleum gases and liquids are flammable.
  • Any pipeline leak can be potentially dangerous.

 Underground utility line information

Safety is our top priority. Incidents involving damage to natural gas pipelines are rare and CenterPoint Energy takes a proactive approach to prevent any potential incident or natural gas leakage to protect life and property. Although it is an unusual situation, the company is aware of a few instances per year where a sewer blockage occurs as a result of a contractor’s excavation activities during construction – resulting in unintended installation of a gas line in a sewer line. However, CenterPoint Energy is resolved to take action to remedy a situation upon notification to prevent an accident from occurring. If a customer experiences a sewer back-up, CenterPoint Energy doesn’t want customers or plumbing contractors to drill through a blockage for any reason without first allowing CenterPoint Energy to locate its underground natural gas facilities to help determine and prevent potential damage to the natural gas lines that could result in leakage. If the qualified contractor discovers an issue with any CenterPoint Energy natural gas piping, the company will work closely with that professional to resolve the issue. This is for the safety of our customers and the public.

It is important that customers and contractors also know to call 811, at no cost to the customer, prior to any excavation or projects that might involve underground utilities or pipelines, to have them marked. State law requires customers to call 811, the call before you dig number, or your local One Call Center at least 48 hours, or two working days, before digging. Underground utilities are not limited to natural gas facilities. Customers are also responsible for marking private lines such as invisible pet fences, sprinkler systems, yard lights, sewer and water lines and gas grill lines.

If you do suspect a gas leak, please immediately call the emergency gas leak telephone number below from a safe distance and do not assume someone else has already called. The odor will be investigated at no charge.

Emergency gas leak telephone number

Texas:..............................................................................888-876-5786

If you have concerns about your natural gas line and sewer line being conjoined, contact a qualified professional plumber or contractor. A professional plumber can perform a sewer line inspection with a camera that will visually inspect the inside of the sewer pipe that runs from your home. If the qualified contractor discovers an issue with any CenterPoint Energy natural gas piping, the company will work closely with that professional to resolve the issue. We have notified sewer contractors and plumbers that they should call CenterPoint Energy if they need assistance. We have qualified personnel who are available to assist them 24 hours/7days a week.

INFORMACIÓN SOBRE LÍNEAS SUBTERRÁNEAS DE SERVICIOS PÚBLICOS 

La seguridad es nuestra máxima prioridad. Los incidentes que involucran daños a tuberías de gas natural son raros. A fin de proteger vidas y propiedades, CenterPoint Energy adopta un enfoque proactivo para prevenir cualquier incidente potencial o fuga de gas natural. Aunque son situaciones inusuales, la compañía está consciente de unos pocos casos por año en los que ocurre un bloqueo de alcantarillas como consecuencia de las actividades de excavación de un contratista durante la construcción, y que resultan en la instalación involuntaria de una línea de gas dentro de una alcantarilla. Sin embargo, CenterPoint Energy ha resuelto tomar medidas para remediar estas situaciones despues de recibir una notificación, para prevenir que ocurra un accidente. Si un cliente tendrá una obstrucción de alcantarilla, CenterPoint Energy no quiere que sus clientes o contratistas de plomería perforen los bloqueos por ningún motivo, sin antes permitirle localizar sus instalaciones subterráneas de gas natural para determinar su ubicación. De esta manera se evitan posibles daños a las líneas de gas natural que podrían producir fugas. Si el contratista calificado descubre algún problema con una tubería de gas natural de CenterPoint Energy, la compañía trabajará conjuntamente con el profesional para resolver la cuestión. Esto es para seguridad de nuestros clientes y del público.

También es importante que los clientes o contratistas llamen al 811, sin cargo para el cliente, antes de cualquier excavación o proyecto que podría afectar líneas de servicios públicos o tuberías de gas subterráneas, para marcar su posición. La ley del estado requiere que los clientes llamen al 811, el número de “Llama antes de excavar”, o al One Call Center local al menos 48 horas o dos días hábiles antes de excavar. Las líneas subterráneas de servicios públicos no son únicamente instalaciones de gas natural. Los clientes también son responsables de marcar las líneas privadas, tales como cercas invisibles para mascotas, sistemas de riego, luces de patio y líneas de alcantarillas, agua y gas para parrillas.

Si sospechas que hay una fuga de gas, por favor llama inmediatamente a número de teléfono de emergencia para fugas de gas indicados más abajo. Hazlo desde una distancia segura y no supongas que alguien más ya ha llamado. El olor a gas será investigado sin ningún cargo para ti. Número de teléfono de emergencia para fugas de gas

Texas:....................................................................................888-876-5786

Si te preocupa que tu línea de gas natural y tu línea de alcantarilla puedan estar unidas, ponte en contacto con un contratista o un plomero profesional calificado. Un plomero profesional puede realizar una inspección de la alcantarilla con una cámara y ver el interior de la tubería que corre desde tu casa. Si el contratista calificado descubre algún problema con una tubería de gas natural de CenterPoint Energy, la compañía trabajará conjuntamente con el profesional para resolver la cuestión. Hemos notificado a plomeros y contratistas de alcantarillado que llamen a CenterPoint Energy si necesitan asistencia. Contamos con personal calificado disponible para asistirlos las 24 horas/7 días por semana.

Excess flow valves

Excess flow valves are optional devices that can be installed on your home’s natural gas service line. They are designed to completely shut off or significantly reduce the flow of natural gas if a natural gas service line becomes damaged.

Pipeline Access & Security

Pipeline right-of-ways must be kept free from structures and other obstructions to provide access to the pipeline for maintenance and in the event of an emergency. If a pipeline crosses your property, please do not plant trees or high shrubs on the right-of-way. Do not dig, build, store or place anything on or near the right-of-ways without first having the pipeline marked and the right-of-ways staked.

Additionally, if you witness suspicious activity on a pipeline right-of-way, please report it to the authorities, or call your local CenterPoint Energy emergency number.

National Pipeline Mapping System

To view and download maps of transmission pipelines in your county, see the National Pipeline Mapping System website, an online mapping program managed by the federal government.

 Related Site
http://www.call811.com


811 is the new number you should call before you begin any digging project. Learn More About 811...