Mike will tell you that the most important conversation in any septic installation happens before a single machine touches the ground. It happens at the site evaluation — standing on the property, reading the soil, understanding the water table, looking at the land the way the land needs to be looked at before anyone starts drawing plans. "Every property is different," he says. "What works on one lot in Sussex County might be completely wrong for the lot next door. The only way to know what you're dealing with is to be there." That approach — methodical, site-specific, grounded in nearly two decades of working this particular ground — is the foundation on which Mike built Excavating New Jersey LLC, the Wantage-based septic and excavating company that has been serving northwest New Jersey for close to twenty years.
Excavating New Jersey LLC is a licensed, insured, and NJDEP Chapter 199-certified operation. It is not a franchise, and it does not subcontract the work that defines its reputation. From the initial site evaluation through the engineering, permitting, installation, and final grading, the same team that made the commitment to the homeowner is the team that sees the project through. That continuity is not incidental — it is the operating principle behind a company that has spent two decades building relationships in a region where word travels fast and the ground does not forgive shortcuts.
For anyone in Sussex County who is facing a new septic installation — whether on a vacant lot, a property with a failing system that has reached the end of its useful life, or a parcel that has long been considered unbuildable — here is a closer look at how Mike thinks about that work, and what any homeowner or developer should understand before the first shovel breaks ground.
What a Proper Septic Installation Actually Requires — And Why the Engineering Phase Determines Everything That Follows
"People think of a septic installation as a construction project," Mike says. "It is. But before it's a construction project, it's an engineering project. And before it's an engineering project, it's a soil science project. If you get the soil evaluation wrong, everything built on top of it is wrong too."
In New Jersey, septic system design is governed by NJDEP regulations — specifically the standards outlined under Chapter 199 — and those regulations exist because the consequences of an improperly designed system are not merely inconvenient. A system installed without adequate percolation testing, without proper setback compliance, or without accounting for seasonal water table fluctuations can fail within years of installation, creating a remediation problem that is significantly more expensive than doing the engineering correctly the first time.
At Excavating New Jersey, the engineering and design phase is handled in-house. Mike's team conducts soil testing and percolation analysis, develops the system design around the specific conditions of the property, and manages the permitting process with the relevant municipal and county authorities. For a homeowner or developer who has never been through a septic installation, that process can feel opaque and slow. Mike is direct about why it cannot be rushed. "The permit exists to make sure the system is designed right for that specific piece of land. Cutting corners in the permitting phase doesn't save time — it creates problems that show up after the installation is complete and are much harder to fix."
The type of system that is appropriate for a given property is not always obvious at the outset, and in Sussex County it is rarely a simple question. Conventional gravity-fed systems require soil conditions and lot geometry that many properties in the region do not have. Where the water table is high, where ledge rock sits close to the surface, or where the available area for a leach field is constrained, a raised mound system is often the correct engineering answer — a design that elevates the treatment and dispersal components above the natural grade to achieve the separation from groundwater that the regulations require and that the system needs to function properly over time.
Alternative treatment units — ATUs — represent another category of system that Excavating New Jersey is equipped to design and install, and they are increasingly common in situations where lot size, soil conditions, or proximity to wetlands and water bodies make conventional or raised mound systems impractical. ATUs provide a higher level of treatment before effluent reaches the soil, which allows for reduced setback requirements in some circumstances and makes certain properties viable for development that would otherwise not be. "There are properties in this county that people have been told are unbuildable," Mike says. "Sometimes that's true. But sometimes it just means the conventional approach won't work, and what's needed is someone who knows the alternatives."
What Homeowners and Developers in Sussex County Need to Understand About Installing a Septic System on This Land
Sussex County sits within the New Jersey Highlands — a region subject to the Highlands Act, a state law that imposes significant land use and environmental restrictions on development within its boundaries. For property owners considering a new septic installation, Highlands Act compliance is not a bureaucratic formality. It is a substantive constraint that affects what can be built, how it can be built, and what the approval process looks like. Working with a contractor who understands that regulatory environment is not a preference — it is a practical necessity.
Mike has been navigating Highlands compliance for the entirety of his time in business, and that experience shows up in ways that are not always visible to the homeowner but that matter enormously to the outcome. It shows up in how the system design is structured to meet both NJDEP and Highlands requirements simultaneously. It shows up in how permit applications are prepared and submitted, and in how the project is managed when regulatory questions arise during the approval process. "I've seen projects stall for months because the contractor didn't understand the Highlands requirements," he says. "That's time the homeowner can't get back."
The soil and geological conditions of northwest New Jersey add another layer of complexity that experience is the only real preparation for. Ledge rock — hard bedrock that sits close to the surface in many parts of Sussex County — can make standard excavation impossible and requires specialized equipment and, in some cases, blasting to remove. Excavating New Jersey maintains the capability to handle rock removal, ledge blasting, and boulder management in-house, which means that a project encountering unexpected subsurface conditions does not stall while the contractor searches for a subcontractor who can handle it.
For developers working on new construction, the integration between the septic installation and the broader site work is a practical consideration that shapes how the project is sequenced. Excavating New Jersey handles both — site clearing, foundation excavation, utility trenching, drainage solutions, and final grading — which means the septic installation does not need to be coordinated across multiple contractors with competing schedules. The full project lifecycle, from clearing to final grade, moves under a single point of accountability.
What to Look for When Choosing a Contractor for a Septic Installation — and What the Right Answers Sound Like
A septic installation is not a commodity purchase. The price difference between contractors often reflects real differences in what the installation will include, how the engineering will be handled, and what the system will look like five and ten years after it goes in the ground. A few questions are worth asking before any agreement is signed.
Ask whether the contractor handles the engineering and permitting in-house or refers it out. A contractor who manages the full process — soil testing, system design, permit application, installation, and final inspection — maintains accountability across every phase of the project. One who hands the engineering off to a third party and picks up at the excavation stage is not in a position to catch problems that originate in the design phase, and those problems tend to be the most consequential ones.
Ask specifically about experience with the type of system the property requires. Raised mound systems and ATUs are more technically demanding than conventional installations, and not every contractor who installs conventional systems has meaningful experience with either. Ask to see examples of similar projects. Ask how many raised mound or ATU installations the contractor has completed in the past year. The answers will tell you something real about whether the capability being represented is genuine.
Ask about what happens if the project encounters unexpected conditions — ledge rock, a higher-than-expected water table, a soil profile that does not match what the initial testing suggested. A contractor who has a clear answer to that question, and the in-house capability to respond to it, is a contractor who has thought seriously about what can go wrong. One who deflects the question or promises it will not be an issue has not. Excavating New Jersey maintains compact excavation equipment specifically for projects in tight or landscaped areas, and the capacity for rock removal and ledge work for projects where the subsurface presents obstacles that standard equipment cannot handle.
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Finally, ask about the warranty and what post-installation support looks like. A system that is installed correctly and maintained appropriately should provide decades of reliable service. Understanding what the contractor stands behind — and how accessible they will be if a question or issue arises after the installation is complete — is part of making a fully informed decision.
The Contractor Who Knows This Ground — and Builds Systems That Last
There is a version of septic installation that treats every property as interchangeable — the same design, the same approach, the same assumptions applied regardless of what the ground actually says. Mike built Excavating New Jersey on the opposite conviction. Nearly twenty years of working the same soil, navigating the same regulatory environment, and solving the same categories of problem that northwest New Jersey reliably produces has made the company something that cannot be replicated by a contractor without that history.
"I drive past these properties," Mike says. "I see the systems I've installed. I know which ones are still running exactly the way they should be. That's the standard I hold myself to — not just getting the job done, but getting it done in a way that holds up." For homeowners and developers in Wantage and across Sussex County who are facing a septic installation and want to understand what doing it right actually looks like, Excavating New Jersey offers free site evaluations. The conversation starts on the ground, and it starts honestly.