We will have an absolute maximum (or minimum) at provided f(c) is the largest (or smallest) value that the function will ever take on the domain that we are working on. Also, when we say the âdomain we are working onâ this simply means the range of xâs that we have chosen to work with for a given problem.
Thompson's slope is about one percent, so each structure manages a zone of about nine acres. At $500 to $2,000 per structure, the drainage water management structures only added about five to 15 percent to the cost of upgrading the field's century-old drainage system.t $500 to $2,000 per structure, the drainage water management structures only added about five to 15 percent to the cost of upgrading the field's century-old drainage system.
Digging a site for a septic system, leech field and all plumbing pipes sometimes run well over half of the cost of the total septic system. Expect to pay between $3,000 and $6,000 for this work alone depending on the size of the tank and the distance of the tank and field from the house.nstalling the PVC plumbing to the septic tank, leech field, and exhaust pipe can cost as much as $1,000 but typically costs $400 to $600. Other costs might include: 1  Tree and root removal may run over $1,000 if they interfere with the septic system design.