Trusted by Homeowners, Developers, and Institutions

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SJS Engineering – South Jersey Septic Engineering provides comprehensive, start-to-finish septic system services, managing every phase of a project from initial feasibility and engineering through permitting, construction, installation, and final approvals. We are not a drafting-only firm. Our team delivers fully engineered, buildable septic systems backed by regulatory knowledge, field experience, and disciplined project management. 

Whether a project involves a single-family home, a commercial or institutional facility, or a highly regulated environmental site, SJS Engineering serves as a single, accountable point of responsibility, eliminating gaps between design, approval, and construction. 

SJS Engineering proudly serves South Jersey, the Pinelands Region, Central Jersey, and the Greater Philadelphia Metro Area.  

Our core expertise is septic system engineering, including both conventional and advanced treatment systems. Each design is based on detailed site evaluation, soil conditions, hydraulic loading, environmental constraints, and applicable regulations.

Services include:

• Conventional septic system design 
• Advanced treatment units (ATUs) 
• Pressure-dosed systems 
• Mound systems 
• Drip dispersal systems 
• Large-capacity and non-residential systems 
• System expansions and capacity upgrades 
• Repair and replacement of failing systems
   

All designs are prepared to meet or exceed local health department standards, NJDEP and PADEP requirements, and Pinelands Commission regulations, where applicable. 

SJS Engineering manages the entire permitting and approval process, coordinating directly with agencies to keep projects moving efficiently and compliantly.

This includes:

• Local Health Department applications 
• Municipal zoning and land use coordination 
• NJDEP and PADEP permitting 
• Pinelands Commission approvals 
• Wetlands and environmental reviews 
• Response to agency comments and revisions 
• Attendance at meetings and hearings as needed
   

Our regulatory-first approach minimizes delays, reduces redesigns, and protects clients from costly compliance issues.

Unlike firms that stop at engineered drawings, SJS Engineering remains actively involved through construction and installation. We coordinate with installers, inspectors, and regulators to ensure the system is built exactly as designed and approved.

Services include:

• Contractor coordination and sequencing 
• Installation management and field verification 
• Inspection coordination 
• Regulatory sign-offs 
• As-built documentation 
• Final approvals and closeout
   

This “soup-to-nuts” approach ensures accountability and consistent quality from start to finish.

Before design begins, we evaluate whether a site can support a compliant septic system and identify the most practical path forward.

Services include:

• Site feasibility studies 
• Soil and percolation testing coordination 
• Environmental constraint analysis 
• Lot yield and development potential review 
• Preliminary system concepts and cost considerations
   

This upfront analysis helps clients make informed decisions early—before committing to construction or land acquisition. 

While SJS Engineering is known for solving complex and regulated septic challenges, we also design and install standard, code-compliant septic systems efficiently and cost-effectively.

These include:

• New residential construction 
• Replacement of aging or non-compliant systems 
• Bedroom additions and system upgrades 
• Straightforward commercial applications
   

Our attention to detail ensures even simple systems are properly designed, approved, and installed for long-term performance.

To support septic system design and approvals, SJS Engineering also provides:

• Wetlands delineation and environmental analysis 
• Stormwater management and runoff calculations 
• Green infrastructure integration 
• Erosion and sediment control plans 
• Coastal zone management
• Utility coordination and site layout 
• NJDOT and roadway access permitting (when required) 
• Ethical engineering practice and regulatory compliance
   

Providing these services in-house reduces coordination issues and accelerates approvals.

• End-to-end project responsibility 
• Veteran-Owned and Operated discipline 
• Licensed, multi-state civil engineering leadership 
• Deep regulatory and environmental expertise 
• Field-informed designs that get built correctly 
• Experience across residential, commercial, institutional, and regulated markets
   

We engineer, permit, manage, and install septic systems—completely and correctly.