How to Determine Septic System Capacity?
Understanding Septic Tank Capacity
To determine septic system capacity, start by considering several critical factors that impact wastewater management. You'll want to ensure that your system remains compliant with regulations and functions well over time.
1. Check Existing Documentation
One of the first steps is to look for any existing documentation or records related to your septic system. This could include installation documents, permits, or maintenance records which typically outline the type of septic system, size of tank and dimensions of the septic bed.
These documents might be located:
With the municipality, region or county who issued the permit for the system.
From previous maintenance providers
Via the previous property owner’s records.
Note: Records can sometimes be inaccurate, especially if the septic system has been altered or modified over time.
2. Hire a Professional to Inspect the System
For a precise determination, hiring a licensed septic professional is your best bet. They can:
Locate and uncover the tank
Measure its dimensions (length, width, depth)
Calculate its volume
Perform a thorough inspection
Locate the septic bed and determine the type and size
Verify the drainage capacity
This approach gives you an accurate assessment of your septic system while also highlighting any maintenance needs. Headwaters Construction in Caledon can help you with a professional septic tank inspection.
3. Estimation of Septic System Size and Type Requirements Based on House Features
Estimating septic system capacity requirements if based on the following house characteristics. The number of people in the house does not determine the septic system requirements.
A. Using Number of Bedrooms
The number of bedrooms is the primary factor in determining the septic system requirements.
B. By Square Footage
House size is another metric for determining expected sewage flow to the septic system. The square footage typically does not include the basement depending on the type of house.
C. Water Fixtures
The number of water fixtures (ie. bathrooms) helps determine the design flow for the house. It is more important for smaller houses with more than 2 bathrooms
4. Site Factors
Soil Tests: Soil drainage properties will influence the septic bed footprint and type requirements.
Set Backs: There are a number of setbacks in the building code that protect property and environmental features. These setbacks include wells, lakes and streams, buildings, property boundaries etc..
Key Points to Remember
Professional inspection is most accurate
Use documentation where available, but verify
Consider regulations as a priority
Whether you’re upgrading a system or evaluating a current one, understanding your septic system’s capacity ensures a healthy and compliant setup. Making informed decisions about your septic system helps avert potential issues, safeguarding your property’s viability and ensuring regulatory compliance.
Please reach out to Headwaters Construction for all your septic tank construction, inspection and design needs.
