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.
PVC piping for the leech field and between your house and the septic tank can run as much as $200 depending on the distance of the tank from your house. Installing 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.igging up the septic tank to reach a leak may cost $2,000 to $4,000. Some leaks can be repaired; some cannot. A typical leak that can be repaired will cost $100 to $500. Repairs to a leach field â if the absorbency of the field has failed â may cost upwards of $2,000 from start to finish.