Stormwater & Wastewater Engineering

Helping facilities stay compliant, efficient, and in control of their water systems.

Practical designs that solve problems and stand the test of time.

Whether you’re dealing with flooding, aging infrastructure, or evolving regulatory requirements, PSARA helps you understand your system, identify solutions, and implement upgrades that make sense.

We work with industrial clients, food manufacturers, petroleum retailers, and other regulated facilities to design and optimize stormwater and wastewater systems that are effective, maintainable, and built for real-world conditions.

Trusted by EHS Managers, Facility Engineers, and Plant Operators Across the Midwest.

What We Do

Stormwater Engineering & Infrastructure Design

We design and upgrade stormwater systems that manage flow, reduce flooding, and meet long-term site needs.

Storm sewer and drainage design
Detention/retention pond design and retrofits
Flooding and runoff management
Erosion and sediment control planning
Design strategies to reduce pollutants like oil, grease, COD, and metals from stormwater runoff

An aerial photo showing a stormwater conveyance system in an industrial or commercial setting. A concrete outfall channel extends from a curbed parking lot or roadway, guiding stormwater runoff toward a naturalized stormwater retention pond. The receiving area is surrounded by dense vegetation and trees, which help stabilize the banks and provide erosion control. The pond is adjacent to a concrete pad and industrial facility with visible tanker trailers and paved surfaces.

Stormwater Compliance & Permitting

We help facilities stay in compliance with evolving stormwater regulations through proactive planning and documentation.

SWPPP development and implementation
BMP planning and design
Permitting support and regulator coordination
Inspection readiness and documentation systems

This image shows a close-up of a hand holding a pen and filling out a Stormwater Industrial Routine Facility Inspection Report on a clipboard. The form includes fields for facility name, date of inspection, inspector information, weather conditions, and notes on discharges or control measures. The inspection appears to be part of a SWPPP (Stormwater Pollution Prevention Plan) compliance process, typically required for facilities under NPDES permits. The scene captures an active, hands-on compliance check, suitable for use in environmental consulting or EHS-related communications.

Wastewater Pretreatment Design & Support

We design and upgrade pretreatment systems that meet discharge limits, reduce treatment costs, and simplify ongoing operations.

Industrial pretreatment system design and retrofits
Lift station and flow equalization design
Nutrient and solids removal
Equipment sizing and layout
Permitting support and regulator coordination

Modular skid-mounted wastewater treatment system engineered for industrial facilities—ideal for chemical dosing, solids removal, and process water control.

Troubleshooting & Optimization

When systems aren’t performing as expected, we evaluate root causes and recommend targeted, cost-effective improvements.

On-site system evaluations
Sampling and performance assessments
O&M support and SOP development
Energy and chemical use reduction

Stormwater retention pond improvement project at an industrial facility—enhancing outlet piping and stabilizing berms to meet stormwater management requirements.

Mobile Water Treatment Support

We support the setup and monitoring of temporary mobile treatment systems to address short-term or emergency discharge needs.

Customized setups based on contaminants, flow, and site conditions
Integration of bag filters, sand filters, carbon vessels, oil-water separators (OWS), and other modular components
Onsite system assembly—often built directly in our trailer
Rapid deployment for bypass, dewatering, and emergency response
Real-time monitoring and compliance sampling

Temporary mobile water treatment system in operation at a truck stop, providing on-site wastewater management during infrastructure upgrades.

Why Clients Choose PSARA

We know what regulators are looking for.

Our team has a proven track record navigating regulatory programs and securing approvals that keep projects on schedule.

We design for long-term reliability.

Our systems prioritize functionality, maintainability, and cost-effectiveness over complexity.

We’re responsive and easy to work with.

You’ll get senior-level support, open communication, and a partner that follows through.

Projects

Topographic site map of Wedge Quarry and surrounding areas in Bloomington, Indiana, showing contour lines, water features, and gravel access roads. — Stormwater Management & Erosion Control – Superfund Site Remediation

Designed and implemented stormwater controls at a remediated Superfund site to address erosion and contaminant transport. Improvements included topographic modeling, drainage channel design, berm construction, groundwater level reduction, and vegetative stabilization—reducing sediment discharge to adjacent waterways by over 75%.

Engineered stormwater retention pond with flow separator at a steel manufacturing facility, designed to improve drainage and reduce TSS in compliance with NPDES requirements. — Comprehensive Water Resources Engineering – Steel Manufacturing Facility

Engineered sitewide drainage improvements for a steel mill facing NPDES compliance issues with TSS. Developed detailed base mapping, modeled drainage areas, and designed over 4,600 LF of new infrastructure. Improvements included outfall consolidation, a retention pond with reuse capabilities, and an oil separator system targeting scrapyard runoff.

Wastewater pretreatment equipment inside a food production facility, showing tanks, piping, and filtration infrastructure for regulatory compliance. — Wastewater System Expansion & Treatment Optimization – Food Production Facility

Facilitated a major facility expansion by finalizing wastewater equipment design, coordinating building modifications, and optimizing the treatment system to resolve high BOD levels and accommodate increased production. Services included equipment layout, control system design, construction oversight, and startup assistance, enabling the client to double capacity while maintaining compliance and reducing long-term hauling costs.

Oil water separator at an industrial site, part of a stormwater treatment system designed to reduce COD in groundwater-influenced discharge. — Stormwater Compliance Carbon Filtration System Installation – Louisiana Industrial Facility

Designed and implemented a permanent carbon filtration system to reduce COD in stormwater discharge at an industrial site. Targeted low-flow groundwater infiltration as the primary source of COD, while allowing high-flow stormwater to bypass treatment. The system features prefiltration, dual carbon vessels, and remote monitoring for long-term reliability and minimal maintenance.

Let’s talk water.

Reach out to our Engineering team to get started.

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