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Elmid Design Inc.

Municipal Infrastructure Engineering Company

Elmid Design logo

Elmid Design Inc.

Municipal Infrastructure Engineering Company

Septic Design

Septic Design

Septic Design

Providing comprehensive septic tank design services in Ontario. Our company has a team of expert and knowledgeable septic designers.

Professional Septic Tank Design Service in Ontario

Providing comprehensive septic tank design services in Ontario. Elmid Design Inc. has a team of expert and knowledgeable septic designers. Our mission is to provide clients with a high-quality septic tank design service that meets their needs. Our septic tank design process starts with a thorough evaluation of the site. We consider the soil type, ground conditions, water table, and other important factors. Besides, we design site-specific, affordable, long-lasting septic systems that meet the Ontario Building Code and Ministry of the Environment and Climate Change requirements.

While working on your project our septic designer uses the latest technology and design techniques to ensure that our septic tanks are durable, long-lasting, and in compliance with all relevant regulations and standards. Our team is dedicated to providing unparalleled customer service. We are always available to answer our clients’ questions or concerns.

Whether you are building a new home, upgrading an existing system, or needing routine maintenance, we are here to help.

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Design each and every Ontario Building code (OBC)

Specification While Designing The Septic System

The OBC is required for all building projects in Ontario, and compliance is necessary to obtain building permits and ensure that the building meets local building codes and regulations. As part of its mandate, the OBC rules ensure septic tanks are designed and installed correctly. So that it prevents soil and groundwater contamination and protects the environment. For example, according to OCB PART 8, you must develop a septic tank that can hold sanitary sewage to a minimum depth of 1,000 mm (or 900 mm if the excavation is in rock).

Our licensed and professional septic engineers follow every Ontario Building code regulation while designing the septic system for your property. Want to pass septic tank system design to continue your construction project, hire us. Whether you need septic design Markham or septic design Richmond Hill you can count on us.

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Ensure minimum requirements before building any Septic plan

As an important part of the wastewater treatment system, septic tanks are essential to protect the public’s health. A septic tank’s minimum capacity must be 3,600 L or more. Residential occupancies: 2x daily design sewage flow; Non-residential occupancies: 3x daily design sewage flow. Further, the daily sewage flow needs to be three times as high for non-residential occupancy. For septic design, GTA area:

  • Sanitary sewage will flow through at least two compartments in the tank.
  • The pipe between two tanks shall have at least a 2-percent slope for their outlets. Each tank’s outlet and inlet pipe must have a minimum slope of two percent
  • There must be at least 150 mm of separation between compartments in the septic tank.

Septic tanks must be located sufficiently away from property lines to ensure proper maintenance and inspection. Water sources such as streams, lakes, and wells must be kept away from septic tanks. Proper ventilation and preventative measures must be taken when septic tanks are close to buildings. Besides, septic tanks must be located at a safe distance from underground utilities to avoid interference or damage. Whether you are seeking permission for septic design in Innisfil or Georgina, our professionals can help.

Approval Process

The approval process for septic systems regulated under the Ontario Building Code is typically handled by the local municipality’s Building Department, Conservation Authority, or Health Unit. This includes plan review, permit issuance, and inspections. If you are uncertain about the approval authority in your area, you can contact the Municipal Building Department for guidance. You can also contact us to provide proper guidelines. We can help you to build the septic plan and ensure it gets permitted by the authority.

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Meet your flawless septic system design needs

The type of septic system needed depends on several factors such as the size of the property, the soil type, and the amount of wastewater generated. Generally, Ontario’s most common type of septic system is a conventional gravity-fed system. It consists of a septic tank and a drain field. However, under some circumstances, alternative systems such as mound systems, sand filters, and pressurized systems may be necessary. It is important to consult with a licensed septic installer and a local health department to determine the appropriate septic system for your property.

A septic system should not contain sludge, scum, or solids in its leaching bed (tile bed). At least once every two years, the septic tank needs to be inspected and pumped out. The most current information regarding minimum clearance requirements for septic design Ajax or septic design Whitby , we maintain the latest edition of the OBC regulation.

Wide range of Septic System design According to your Property requirements

Several types of septic systems are available for treating and disposing wastewater. We always provide our residents with incorporated designs that are both affordable and of the highest quality. Some of the most common types include:

Conventional Septic Systems

The typical septic systems include a septic tank and a drain field for treating and dispersing wastewater. The majority of their applications are for residential and small commercial.

  • Most common type, also,
  • Used where the natural soils are suitable filter materials and the ground includes a good infiltration rate 
  • Uses Leaching bed pipes in stone-filled trenches below normal ground level
Septic design Elmid Conventional

Raised Bed:

  • second most common type
  • it uses where natural soils are not suitable filter materials, or the site has a high water table, or bedrock is close to the surface
  • appropriate soil is brought in to the site to create a leaching bed that is high enough above the underground water table or bedrock pipes install in stone filled trenches in the imported soils
  •  requires a large extra area of appropriate soils “downstream” from the bed (in the direction the wastewater will flow as it seeps through the soil); called the “mantle”, this is an important part of the soil filter

Filter Bed:

Sand filters are similar to conventional systems, but use a layer of sand to filter and treat wastewater before dispersing it into the ground. Areas with high water tables or poorly drained soils commonly use them.

  • Site conditions or lot size may require a smaller bed area, making it applicable, also,
  •  instead of trenches, the whole excavated bed area filled with a layer of “filter” sand which must meet specific requirements for grain size
  • They will place a layer of stone on top of the sand and lay pipes into it, additionally, 
  •  Pipes will install closer together, furthermore,
  •  It can install in-ground, partially raised or fully raised, besides,
  •  may also use a mantle .
Septic Design Filter Bed Elmid Design Inc. septic engineer

Shallow buried trenches:

  • used where you need to install the septic system with a smaller bed area 
  • The system pumps filtered wastewater through perforated pipes under pressure. The pipes spray the water evenly over trenches in specially designed chambers.
  • requires additional maintenance, plus annual inspection and testing

Advanced Tertiary Treatment Systems in Ontario

Advanced treatment units must meet the effluent standards in Part 8 of the Ontario Building Code. Units listed in SB-5 of the Code are deemed to meet these requirements.

Advanced treatment units that produce tertiary quality effluent could be used with the shallow buried trench system regulated under the Ontario Building Code or with an area bed under an authorization issued by the Building Materials Evaluation Commission (BMEC).

ATUs are specialized systems that use air to accelerate the treatment of wastewater. They are typically used where conventional systems are not feasible or higher water quality standards are required.

A few samples of Advanced Tertiary Treatment Systems:

Eljen GSF Septic System

This septic system is a two-part sewage treatment and dispersal system buried in the ground. It includes a septic tank with an effluent filter, a treatment/dispersal system, and may have pumps and other components depending on your location and system demands. The sewage generally flows by gravity: first, into the septic tank where larger particles settle out and some primary decomposition takes place, and then into the Eljen GSF System where it decomposes before slowly soaking/dispersing into the soil.

All Eljen GSF Systems will install on a clean, medium to coarse Specified Sand layer. The effluent flows into the GSF Modules through perforated plastic pipes which are secured to the tops of the Modules. An anti-siltation fabric covers the GSF Modules and distribution pipe assembly. This fabric prevents backfill soil materials from entering the GSF Modules.
All Eljen GSF System designs will be by the BMEC Authorization, the Ontario Building Code, and the Eljen Design and Installation Manual.

ELjen system - Septic Design
ELjen system- Septic Design

Waterloo Biofilter

Waterloo Biofilters are sustainable septic systems that provide a permanent combination of biological treatment and physical filtration of wastewater.  The system uses an engineered filter medium that is highly resistant to clogging, has the highest surface area-to-volume ratio in the industry, and they warranty to last at least 20 years!

The System designed to work in even the most difficult sites, Waterloo Biofilters are the ideal solution for clay soils, bedrock, high water table, small lots, remote sites, and environmentally sensitive areas.  A Waterloo Biofilter works like a low-pressure membrane, providing a physical barrier that wastewater must pass through for treatment before entering the environment.  Even when the power supply not working, the Waterloo Biofilter’s design ensures no untreated sewage enters the environment.

Waterloo Biofilter Septic Elmid Design - Septic Design


The Enviro-Septic wastewater treatment System treats septic tank effluent to prevent suspended solids from clogging the underlying soil, increases system aeration, and provides a greater bacterial area than traditional leaching systems.

Envio Septic- Septic Design

Greywater Systems

Greywater systems are designed to separate and treat greywater (wastewater from sinks, showers, and washing machines) separately from blackwater (wastewater from toilets). They are becoming increasingly popular as a sustainable alternative to traditional septic systems.

Our expert professionals know that a septic system suitable for a particular property will depend on a variety of factors, including site conditions, local regulations, and the property’s specific needs. Additionally, our professional septic tank design services can assist in determining the best septic system for a particular property. Whether you need septic design Oshawaseptic design Oakville or septic design Vaughanwe have covered everything.

Septic Design

Offering Best septic system design services by Elmid Design Inc.

Our expert engineers offer personalized septic design services in Ontario. We cover major cities in Ontario to offer custom septic tank designs for your property. If you are looking for septic design TorontoSeptic design Brampton,  septic design Innisfil, Septic design stouffville look no further. All you need to contact us the rest is our responsibility. Before making any design we strictly take into account:

  • Daily sewage flow
  • Review Test soil Infiltration rate
  • Identify limitations and size of the property 
  • Observe the site “topography”
  • Analysis the existing drainage system

Every aspect of the design is equally crucial, and neglect can result in the system’s early malfunction. However, developing every site is not straightforward,

but the design experts eagerly anticipate tackling the challenges posed by problematic lots that were poorly designed previously or remain unused. Our professional septic engineers will estimate every detail while finalizing your septic system design properly. Besides, if you have minimal knowledge about septic systems don’t worry leave everything to us. Whether you want to build a new system for your building or want to replace the existing one, we can help.

Why us?

Hiring the best septic system designer is important because they can help ensure your septic system is designed and installed correctly. A properly designed and

installed septic system can prevent environmental contamination, health hazards, and costly repairs. We provide cost-effectively and custom septic design solutions for the major cities in Ontario. All you need to contact our team members, the rest is our responsibility. When working with us you can expect:

  • Professional septic design engineers
  • Custom design
  • Affordable service packages
  • Free consultancy
  • Quick response
  • In-depth analysis of your property 
  • Complete customer support for each project

If you need professional septic design services, we encourage you to contact us to schedule a consultation. Our team is ready to provide you with the expert solutions you need to ensure your sewage system’s reliable and efficient operation. You can talk to our septic engineer to find out how to proceed.

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Septic Sysetm Design By Elmid Design Inc.

If there are no municipal sanitary services near the lot, a Septic Engineer must design an on-site sewage system to process the generated wastewater from the building.

Elmid Design Inc. team are expert in the design of septic systems. Typical projects include designs for new septic systems, replacement of Existing septic systems, as well as upgrades to existing septic systems. 

Choose Elmid Design Inc. for your Septic Design needs and experience the assurance of quality and professionalism backed by our Certificate of Authorization by PEO (Professional Engineers Ontario).

Septic system design and size can vary widely, due to a combination of factors. These factors include household size, soil type, site slope, lot size, proximity to sensitive water bodies, weather conditions, or local regulations.

Also, they are some other parameters that impact the septic size like the number of bedrooms, the number of plumbing fixtures, and the total living area of the house.

Elmid Design Inc. has a well-qualified staff onboard that can assist you with all of your residential (and commercial) septic needs for all types of septic system design.

Geographic Locations that we service:

Our Licensed Professional Engineers specialize in Septic Design and Septic Plan. We offer the best best-engineered Septic system design and drainage plan that are crucial for obtaining site plan approval and building permits across Ontario.

Serving Cities and Towns Across Ontario:

Our expertise extends to numerous locations within Ontario, encompassing cities, towns, and regions.

Cities And Towns We Serve:

  • Greater Toronto Area And Surroundings:
    • City of Toronto, City of Mississauga, City of Brampton, City of Vaughan, City of Markham, City of Richmond Hill, Town of Aurora, Town of East Gwillimbury, Town of Georgina, Town of Newmarket, Township of King, Town of Whitchurch-Stouffville, Town of Bradford-West Gwillimbury.
  • Halton, Peel, Durham, And Nearby Regions:
    • City of Burlington, Town of Oakville, Town of Milton, Town of Caledon, Town of Halton Hills, City of Oshawa, City of Pickering, Town of Ajax, Town of Whitby, Municipality of Clarington, Township of Uxbridge.
  • Extended Areas Across Ontario:
    • City of Peterborough, City of Kawartha Lakes, Town of North Kawartha, City of St. Catharines, Town of Niagara on the Lake, County of Brant, City of Guelph, Town of Centre Wellington, Town of Orangeville, Town of Shelburne, Town of New Tecumseth, Town of Essa, Town of Collingwood, Town of Wasaga Beach, City of Barrie, City of Orillia, Town of Ramara.

We prepare Septic Design for the building permit process which will require by municipalities in Ontario including Toronto, Markham, Richmond Hill, Oakville, Vaughan, Aurora, King, Brampton, Burlington, Barrie, Brantford, Oshawa, Niagara Falls, TRCA, LSRCA, etc.


1. What Makes Elmid Unique In Septic Design?

Elmid Design Inc. specializes in comprehensive septic tank design services in Ontario. Their team of experts ensures that each septic system is custom-designed to meet the Ontario Building Code and environmental requirements, focusing on durability and longevity.

2. How Does Elmid Ensure Compliance With Ontario Building Code (OBC)?

Elmid rigorously follows the OBC regulations, ensuring their septic tank designs effectively prevent soil and groundwater contamination. They meticulously craft these designs to comply with local building codes and regulations, prioritizing environmental protection. This approach demonstrates their commitment to both regulatory compliance and environmental stewardship.

3. What Factors Does Elmid Consider In Septic System Design?

Elmid considers various factors such as soil type, ground conditions, and water table. They also consider the property size and daily sewage flow, ensuring the septic system perfectly suits each site’s unique requirements.

4. What Types Of Septic Systems Does Elmid Design?

Elmid actively provides a range of septic system designs, notably conventional and advanced tertiary treatment systems. They prioritize optimizing each system to meet the property’s unique needs and conditions, offering versatile solutions.

5. How Does Elmid Handle Challenging Septic Design Projects?

Elmid embraces the challenges posed by problematic lots, offering expert solutions even for previously poorly designed or unused sites. Their team is adept at navigating complexities to deliver functional and reliable septic systems.

6. Why Choose Elmid For Septic System Design Services?

Opting for Elmid equates to choosing professionalism, with custom designs and exceptional customer support as key features. Additionally, their unique blend of expertise and dedication ensures each client’s needs are precisely met. As a result, every septic system design adheres to the highest quality and compliance standards.

7. How Does Elmid Support Clients Throughout The Septic Design Process?

Elmid provides comprehensive support, from initial consultation to final design. Clients can expect in-depth analysis, professional guidance, and a commitment to achieving the best possible outcomes in septic system design.

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