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Innovative/Alternative Onsite Wastewater Treatment Systems For Long Island


We are Certified Installing Contractor for all 5 of the approved Suffolk County I/A OWTS. FUJI, Hydro-Action, Norweco, Orenco, SeptiTech

Clear River Environmental's Expertise and Most Recent I/A OWTS Accomplishments
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Western Suffolk & Nassau - 631-467-5447
Eastern Suffolk - 631-298-7749
Financing is Available - Please Call for Details


Clear River Environmental is a Certified Installing Contractor and Service Provider for ALL 5 of the Suffolk County I/A OWTS Approved Nitrogen Reducing Residential Systems.

We have installed the MOST nitrogen reducing residential I/A OWTS in Suffolk County since the program was started in late 2015. We installed nearly 100 I/A OWTS systems.

Clear River Environmental installed the first I/A OWTS in December 2016.

The I/A OWTS Manufacturers choose us to do their critical Pilot installations because of Clear River’s 20+ years of experience in Long Island with all types of cesspools, septic systems, and advanced septic system for both residential and commercial customers.

For More Details Call (631) 467-5447



We are a full service Suffolk County Environmental Company for Residential and Commercial Properties that can: Install New Construction Conventional and I/A OWTS; Repair or Upgrade all Conventional OWTS; and Replace all Cesspools with Conventional Septic Systems or Denitrification I/A OWTS.


Clear River Environmental is fully insured and we have our own excavating equipment including both small excavators for easy access to residential properties and larger excavators for larger scale commercial jobs.


We are highly experienced in working with Homeowners, Professional Engineers, Architects, Developers, Contractors, Regulators, and Business Owners.


Clear River Environmental is a Certified Service and Maintenance Provider for all approved Suffolk County I/A OWTS.


We are a licensed Suffolk County Septic Waste Hauler (Pumper) with a fleet of pumper trucks and tankers serving our residential and commercial customers for more than 20 years.

For More Details Call (631) 467-5447

What should you consider when replacing, upgrading or repairing your residential septic system or cesspool?

If your septic tank is at least a 1,000 gallon size and still water-tight you may be able to continue using it.

If your leaching pools are still functioning properly you may be able to continue dispersing into them.

Another important consideration is that the currently approved Norweco and Hydro-Action systems do not require septic tanks in front of them. They have their own primary solids settling primary treatment capabilities within the I/A OWTS.

As a certified and licensed I/A OWTS installer, service provider, and pumper; Clear River Environmental is the best choice to install, maintain, and service all types of I/A OWTS and septic systems.

Let the experts at Clear River Environmental guide you and work with your Architect or Engineer to determine the best nitrogen-reducing I/A OWTS configuration for your residential property.

For More Details Call (631) 467-5447

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