Romtec Utilities helped a major distribution center in Perris, California, manage water from a large paved site with a commercial stormwater pump station. The Home Depot distribution center needed a detention pond and pumping system to manage stormwater across the commercial development. The site includes truck parking, loading areas, employee parking, and other hard surfaces. Because rainwater does not soak into the pavement, runoff had to move through a controlled drainage system.

Romtec Utilities reviewed the original plans, identified design improvements, and provided a value-engineered system. The revised design met the required pumping rate, reduced cost, and supported the contractor’s winning bid. It gave the contractor a coordinated prefabricated pump system package for equipment, documents, start-up, and field support.

Perris sits in Riverside County in Southern California’s Inland Empire. The city is east-southeast of Los Angeles and north of San Diego. As the area continues to grow, large commercial sites need drainage systems that can control runoff from large paved areas.

Large parking lots create heavy stormwater runoff because pavement blocks rain from soaking into the ground. During heavy storms, water can collect quickly. It can cause flooding, standing water, and unsafe driving or walking areas. A stormwater system helps solve this problem. It collects runoff in a basin or wet well. Then, pumps move the water to a drainage system, detention pond, or discharge point at a controlled rate.

Shawnee Construction contacted Romtec Utilities because the project specification listed Romtec Utilities as an approved supplier. After reviewing the plans, the Romtec Utilities team found ways to improve the design value. These changes lowered overall cost while keeping the required function. The review focused on hydraulic performance, equipment access, and simple field installation.

Next, Romtec Utilities worked with Albert A. Webb Associates, the civil engineer, to explain the revised design. The engineer reviewed the changes and approved the system as an equivalent solution to the original plan. This approval helped Shawnee Construction move forward with a more competitive bid and a clear system layout.

The final design used duplex 7.5 HP Ebara pumps, an 8-foot diameter precast concrete wet well, and 8-inch discharge piping. The system pumps 900 GPM at 16 feet TDH. The design included valve cans for parallel force mains. This layout supports easier piping and valve access. The submersible system used precast concrete barrels and a monolithic base. Together, these parts created a strong, cost-effective sump with the storage space and structure needed for long-term use.

Romtec Utilities designed, prefabricated, and supplied the system. The team also provided installation guidance, on-site start-up technicians, owner training, and system documentation. This complete approach helped the contractor move from design review to field installation with fewer coordination gaps.

• Stormwater pump station design and engineering package
• Supplier package for major system components
• Pump station manufacturing
• On-site construction advisory support
• Start-up and commissioning support
• Operations and controls training
• Operation and maintenance documentation

Romtec Utilities supplied more than the major equipment. The team provided the documents, training, and field support needed to help the contractor complete installation and prepare the system for long-term use.

Romtec Utilities offered a complete equipment package for the commercial stormwater application. The team designed the system around the pond, flow rate, site layout, and installation needs. Because Romtec Utilities handled design, manufacturing, supply, and start-up support, Shawnee Construction had one coordinated partner. This reduced coordination issues and helped the project move from submittal review to commissioning.

The value-engineered design also supported the project schedule. Romtec Utilities helped move the system through review, approval, installation, and start-up. As a result, the commercial development received dependable stormwater control for long-term detention pond pumping.

Every commercial site has different stormwater needs. Romtec Utilities designs each system around the site’s flow rate, layout, wet well requirements, controls, and discharge conditions. Your team receives a complete package built for review, approval, installation, and long-term operation. Romtec Utilities can support warehouses, distribution centers, parking areas, and detention pond applications.

Ready to start your next commercial stormwater pump station project? Contact Romtec Utilities to review your flow needs, site conditions, and equipment goals. Our team can provide a custom system designed for your project, schedule, and long-term operation.