• Slide 1

    Welcome To Roman Stone Systems, LLC

    Roman Stone Systems LLC is a wholly owned subsidiary of Roman Stone Construction Company
    formed to focus on innovative/alternative wastewater treatment systems (AKA nitrogen reducing wastewater systems).

    We are the exclusive distributor for Norweco, one of the largest wastewater equipment manufacturers in the world.
    We manufacture, install and service residential and commercial advanced wastewater treatment systems.
  • Slide 2

    Advanced Wastewater Systems

    We manufacture our concrete tanks in Bay Shore, Long Island. We have been at this location since 1962.
    We employ over 50 people and provide good paying manufacturing jobs that pay full benefits.
    We live and work on Long Island just like you do.
    We know you home is your biggest investment and you wastewater system is one of the most expensive systems in your home.
  • Slide 3

    Homeowners - We Are Here to Help You

    Do not be afraid to pick up the phone and call us or send us an email.
    We are glad to help you through the process whether it is for choosing a system, seeking grant funding or
    getting help servicing your equipment Roman Stone is here to help you through the process.

Advantages of the Norweco Singulair TNT and the Norweco Hydro-Kinetic FEU systems:

• Three Inlet openings: for design versatility.

• Gravity fed: The systems operate by gravity. Even if you lose power your system will still perform its function of removing waste from your home.

• Small footprint: The Singulair has one of the smallest footprints in the industry. We offer a single tank, yet it still has more capacity than what is required by the health department. Capacity is key when dealing with wastewater systems. Smaller is not necessarily better and the Singulair TNT offers the best treatment to size ratio on the market.

• Concrete construction: Roman Stone's concrete tanks are built to last with a service life of 100 years. Our tanks can hold soil loads, high groundwater loads and will provide you with the peace of mind that only solid concrete performance can give. No flimsy plastic tanks for us. Your tank is manufactured right here on Long Island in a state approved precast facility under the strictest quality control measures. Each tank is assembled and then vacuum tested for water tightness prior to shipping. Our standard tanks have been tested to be able to handle wheel loads and will never collapse while being pumped or from high ground water.

• Only one moving part: The Singulair TNT has only one moving part; the aerator which comes with a lifetime exchange warranty. Less moving parts plus a lifetime exchange warranty equals less worry, less hassle and greater enjoyment of your home.

• Low electrical consumption: The only moving part has a 1/6 horsepower motor that runs 60 minutes on and 60 minutes off. It's roughly equivalent to running an incandescent light bulb nonstop in your home.

• Large Installed base: There are hundreds of thousands of Singulair TNT's installed throughout the United States. This technology is not experimental or new, it is only new to Long Island. Norweco is one of the largest wastewater equipment companies in the world and they manufacture their products here in the USA (Ohio).

• Locally Manufactured: Roman Stone has been in Suffolk County since 1962. Buy Local!

The Alt Tag

LOCATION: Singulair Green Tank Installed in Cherry Grove, Fire Island National Seashore

 Ronkonkoma Project2

Fire Island is home to some of the worlds most beautiful beaches and is only a short distance from New York City. There are no roads in the town of Cherry Grove and access is either by ferry or by driving along the beach. Once on the island, the homes are accessed by narrow wooden boardwalks making it difficult to bring in a precast concrete tank that can weigh over 10,000 pounds. Drainage fields are built with individual concrete blocks and wastewater retention time is minimal due to the sandy composition of the soil.

For this project the soil bore showed sand down to 8 feet and then water. The Singulair Green tank was chosen by the designer because it is rotationally molded without any seams and has built in hold down points to attach anti bouyancy measures. Polyethelene straps with stainless steel hardware and concrete deadmen were transported to the site by ferry and then the tank was moved on a pallet jack to its final destination.

Now the homeowners can enjoy their vacation home wihtout having to worry about their septic system polluting their beautiful environment.

Coffee House 4
Singulair Green 600 on pallet ready to ship

Singular Green 600 2

Tank in position prior to backfilling

Our Projects