Stormwater Management Changes: What Contractors in Illinois Need to Know

Adapting to Evolving Regulations and Materials in Stormwater Control

Stormwater management is undergoing significant changes across Illinois and the broader Midwest. As municipalities modernize their infrastructure and federal standards tighten, sewer and water contractors must stay informed to remain compliant and competitive. From regulatory updates to advances in materials and equipment, this article outlines what Illinois-based contractors should watch for and how they can adapt effectively.

Why Stormwater Management Is Changing

Climate change and urban development have made stormwater runoff a growing concern. Flooding, erosion, and water pollution are driving state and local governments to implement stricter policies. The Illinois Environmental Protection Agency (IEPA), along with county-level departments, is requiring updated stormwater detention systems, green infrastructure integration, and better sediment control measures.

Key drivers of these changes include:

• MS4 (Municipal Separate Storm Sewer System) compliance mandates

• Updated NPDES permits (National Pollutant Discharge Elimination System)

• Flood mitigation and sustainability initiatives at the municipal level

• New construction and development codes requiring enhanced stormwater infrastructure

What This Means for Contractors

These changes directly affect how contractors plan, bid, and execute projects. You can expect:

• More projects requiring adjustment rings and risers to meet new inlet and manhole height regulations

• Greater demand for precast concrete structures that support larger runoff volumes and are built to new specifications

• Increased focus on sediment and erosion control materials, such as inlet filters, geotextiles, and silt socks

• Requirements for record-keeping and inspection-ready installations, especially for government-funded work

Product and Material Shifts

With evolving codes, contractors must evaluate whether their current suppliers can meet demand for:

• Oversized or modified catch basins and manholes to comply with higher flow demands

• Watertight adjustment rings and sealed lids to prevent stormwater infiltration and exfiltration

• Permeable materials for curb and gutter inlets, where green infrastructure is being adopted

• New composite or corrosion-resistant frames and covers, particularly near road salt zones

As a trusted sewer and water supplier, A&A Equipment is seeing increased interest in these materials—and we’re committed to keeping up with the latest specifications and supplying compliant, job-ready inventory.

How to Stay Ahead

To navigate these changes efficiently:

• Attend local agency pre-bid meetings to understand evolving stormwater specifications

• Request submittals and cut sheets early to verify product compliance

• Partner with a responsive supplier who can help you source compliant adjustment rings, precast structures, and erosion control materials

• Plan for permitting and inspection lead times, as stormwater-related approvals are becoming more stringent

How A&A Equipment Can Help

At A&A Equipment, we specialize in supporting sewer and water contractors throughout Illinois with high-quality stormwater management materials. Our team can guide you through:

• Sourcing compliant adjustment rings and precast structures

• Supplying erosion control products to meet permitting standards

• Rapid power equipment repairs to minimize project downtime during the peak construction season

Final Thoughts

As stormwater management practices evolve, staying ahead of regulatory and product changes is essential for success. Contractors who adapt quickly and partner with proactive suppliers will be better positioned to win work and execute it efficiently.

Need stormwater management supplies or guidance on compliant materials? Visit https://aa.equipment or contact A&A Equipment today. Let’s build infrastructure that holds up to the future—together.