Pipelines leak after being in place for a while and what they leak is usually toxic to the ground near where they are built. Hypothetically leaks can be kept to

Pipelines leak after being in place for a while and what they leak is usually toxic to the ground near where they are built. Hypothetically leaks can be kept to low levels by proactive maintenance, but in practice managers want to cut costs to a minimum, and have no incentives to spend their company's money to keep up the value of someone else's land.