Wastewater Tank Covers for Odor Control, Compliance & Long-Term Durability
Wastewater Covers from RPS Engineering are custom-built to control odors, meet environmental compliance requirements, and protect treatment infrastructure across North America. Whether you need a geodesic aluminum dome for a large clarifier or a low-profile flat cover for a process tank, RPS has engineered a solution for your application. All products are Made in the USA with 1–2 week lead times on most orders.
Why Engineers and Municipalities Choose RPS
RPS Engineering has been designing and fabricating wastewater tank cover systems for over 50 years. We’re not a distributor — everything is manufactured in-house at our Elgin, IL facility, which means tighter quality control, faster turnaround, and a direct line to the people actually building your project. RPS is a women-owned business (WBE), and our aluminum products are BABA compliant — qualifying for SRF loans, USDA grants, and federally funded projects.
RPS Engineering has been designing and fabricating wastewater tank cover systems for over 50 years. We’re not a distributor — everything is manufactured in-house at our Elgin, IL facility, which means tighter quality control, faster turnaround, and a direct line to the people actually building your project.
50+ Years of Manufacturing Experience We’ve worked with municipal engineers, EPC contractors, and plant operators across North America on projects ranging from small channel covers to large-span geodesic domes. If you have an unusual tank geometry or a tight installation window, we’ve likely solved a similar challenge before.
Both Aluminum and Fiberglass — Under One Roof – Most fabricators specialize in one material. RPS offers both aluminum and fiberglass (FRP) solutions, which means we help you choose the right material for your application rather than selling you what we happen to make. H2S-heavy environments, tight budgets, large spans — each situation calls for a different answer and we can deliver either.
Custom-Built to Your Specs No two wastewater facilities are identical. RPS covers are engineered and fabricated to your exact tank dimensions, access requirements, and site conditions. Standard sizes are available, but custom is our default.
BABA Compliant — Critical for Federally Funded Projects All RPS aluminum cover products are domestically sourced and fabricated at our Elgin, IL facility, making them compliant with the Build America, Buy America Act. If your project uses SRF funding, USDA grants, or any federal infrastructure dollars, our aluminum covers qualify. Ask early — BABA requirements confirmed after award can force costly substitutions.
Field Measure Before Production We never cut to CAD alone. RPS schedules a field measurement visit before fabrication begins, ensuring every cover fits correctly the first time. Every order ships with a complete submittal package — shop drawings with all parts numbered and located, bill of materials, and installation instructions any qualified contractor can follow.
Responsive Technical Support Our team works directly with engineers during the specification phase — reviewing drawings, answering RFIs, and providing P.E.-stamped submittals. You won’t be handed off to a call center or a distributor relaying questions back to the factory.
Aluminum vs. fiberglass — which is right for your project? →
Which cover does your tank need? See the application guide →
What does a cover system cost? See ROI & payback →
Frequently Asked Questions About Wastewater Tank Covers
What are wastewater tank covers used for?
Wastewater tank covers are used to control odors, contain harmful gases like hydrogen sulfide, prevent algae growth, reduce evaporation, and help treatment facilities meet EPA and local air quality regulations. They are installed on clarifiers, digesters, aeration basins, equalization tanks, and other open treatment vessels at municipal and industrial wastewater facilities.
What materials are available for wastewater tank covers?
RPS Engineering manufactures wastewater tank covers in aluminum and fiberglass reinforced plastic (FRP). Aluminum is the most common choice for geodesic domes due to its strength-to-weight ratio and long service life. Fiberglass is preferred for highly corrosive atmospheres or applications where a cost-effective alternative to aluminum is needed.
Can wastewater tank covers be custom-built to fit existing tanks?
Yes. Every RPS wastewater tank cover is manufactured to order based on your tank’s exact dimensions. Whether you have a standard circular clarifier or an irregular-shaped process tank, our engineering team will design a cover system that fits correctly and meets your operational requirements.
Do wastewater tank covers help with odor control compliance?
Absolutely. Covering open treatment tanks is one of the most effective methods for controlling hydrogen sulfide and other odorous gases at wastewater treatment facilities. RPS wastewater tank covers create a contained environment that can be vented to odor control equipment, helping facilities comply with permit requirements and reduce community complaints. For current EPA guidelines on odor control at treatment facilities, go to their webpage.
What types of wastewater tank covers does RPS offer?
RPS Engineering offers 4 types of wastewater tank covers to fit different applications and tank geometries — aluminum geodesic domes for large clarifiers and digesters, fiberglass domes for corrosive environments, flat panel covers for low-profile applications, and launder and channel covers for odor and algae control on clarifier launders.
How long do wastewater tank covers last?
Aluminum wastewater tank covers are designed for a service life of 20–30 years with minimal maintenance. Fiberglass covers offer similar longevity in corrosive environments where aluminum would degrade more quickly. Both materials resist the moisture, chemicals, and UV exposure common at treatment facilities.
What industries use wastewater tank covers?
Wastewater tank covers are used primarily at municipal wastewater treatment plants, industrial treatment facilities, food and beverage processing plants, chemical manufacturing operations, and agricultural facilities. Any operation managing open tanks or basins containing process water or wastewater can benefit from a cover system.
Are RPS wastewater tank covers BABA compliant?
All RPS aluminum cover products — including flat covers, geodesic domes, and launder covers — are domestically sourced and fabricated at our Elgin, IL facility, making them compliant with the Build America, Buy America Act (BABA). This is a requirement on projects funded through SRF loans, USDA grants, and most federal infrastructure programs. FRP covers are produced through our fabrication partner and should be verified against specific project requirements. Always confirm BABA requirements early in the design phase.
Is RPS Engineering a women-owned business?
Yes. RPS Engineering is a women-owned business (WBE). This designation may be relevant for projects with diversity, equity, and inclusion procurement requirements at the state or federal level. Contact us to discuss how our WBE status applies to your project.
How do I request a quote for wastewater tank covers?
Contact our wastewater team directly at Gina-wwtp@rpsengineering.com or call 847-931-1950. You can also download our Wastewater Work-Info Sheet to gather the project details our team needs to prepare a quote. Most custom wastewater tank covers ship within 1–2 weeks of order confirmation.
