Pretreatment Septic System Cost

You can expect to pay an average of $4,000-$6,000 for conventional septic systems, $6,500-8,500 for conventional septic systems that require a pump, $10,000-15,000 for alternative septic systems that need pretreatment into conventional drainfields, and $20,000-24,000 for an alternate septic.

Installation and system costs can range between $12,000 and $21,000. If you have a simple property, they may be $1,000 to $3,000 less. However, they could be $5,000 to $10,000 higher if the property has problems with installing a mound or leach field. Installation costs are determined by the amount of time spent on-site by both the installer and his equipment.

All systems require that collection tanks are pumped at least once every two to three year depending on their use. You will accelerate the depletion of your dispersal fields if they aren’t pumped. Irreversible damage is caused by grease and solids which escape your treatment system, holding tank, or enter the leach fields.

Partial and complete treatment systems are more efficient and safer. Treatment equipment is expensive and requires regular maintenance. Make sure you are ready for this when making your decision. These costs can quickly add up over twenty years. Get a written estimate of the system.

Advanced systems often have system monitoring that is automated and give early warnings if something is wrong. Do not ignore any system warnings or alarms. When you receive these, schedule service. If a sewage treatment goes wrong, and it is not addressed promptly, it can cause long-term and costly damage to your system and dispersal field. The warning lights on your control panel are like a “check engine” light on a car. They come on when oil is low. Your engine can be saved by adding a few dollars to your oil.

You can see the cost difference in the above cost table. Systems that send untreated wastewater to the dispersal area are typically half the price of fully and partially treated systems. Even more significant is the difference in cost when you consider operating and maintenance costs, which can amount to between $25,000 and $30,000 for 20-years of home sewage treatment. You can’t avoid using a treatment system. You should consider the long-term hidden costs. These can have a significant impact on your decision making process. The link below explains these hidden costs.

There Are Other Important Factors To Consider

  • Up-Front Planning.

The first step in planning your wastewater treatment plant is to develop the designs, concepts, and regulations. This type of project typically costs between 10-15% and 15% of the total project cost. The engineering cost is typically phased in over time with the majority of your investment going to the general arrangement, civil, and electrical design.

  • Installation Rates.

Keep in mind the local installation costs. They can also vary by location so make sure you know the costs involved in installing the system. Prepackaged modules may be a better option than build-in-place systems in areas with high installation costs.

  • Additional fees and costs that may be involved

You might want to consider other costs and fees when purchasing a wastewater treatment plant. What are the possible additional costs and taxes? What are the possible utility costs for the installation area? Are there any permits or fees associated with environmental regulation? Are there ongoing compliance testing that you will need to pay?

You will also need to be monitored over time. Before you can discharge any waste, you will need to obtain a permit.

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