Stormwater Management

Reduced Runoff. Sustainable Savings.

Apex Companies is the national leader in stormwater management, with coverage for all your facility’s needs. Each year, we help over 500 private and public sector clients avoid regulatory penalties and capture capital investment savings.

Our stormwater services span program development, flood mitigation, erosion and sediment control (ESC), including green infrastructure services such as constructed wetlands, bioswales, bioretention/biofiltration solutions, watershed restoration/riparian habitat creation, rainwater harvesting, and porous/permeable pavement. With over 30 years of technical expertise, we can help you minimize stormwater runoff while maintaining a safe, compliant, and sustainable water supply.

Our specialists include Qualified Industrial Stormwater Practitioners (QISPs), Qualified Stormwater Pollutions and Prevention Plan Developers and Practitioners (QSDs/QSPs), Certified Professionals in Erosion and Sediment Control (CPESC), Certified Erosion Sediment and Stormwater Inspectors (CESSWI), Certified Inspectors of Sediment Erosion Control (CISEC), and Trainers of Record (TORs). With continuous training to stay abreast of the latest techniques and technologies, our professionals hold additional national and local certifications. These credentials ensure that we deliver the most innovative, and effective stormwater management services available.

Permitting and Compliance

  • Stormwater Pollution and Prevention Plans (SWPPPs)
  • Spill Prevention, Control, and Countermeasure (SPCC) plans
  • Municipal Separate Storm Sewer System (MS4) permits
  • National Pollutant Discharge Elimination System (NPDES) Permits
  • Industrial Multi-Sector General Permits (MSGPs)
  • Total Maximum Daily Loads (TMDLs) and Water Quality Control Plans
  • Sampling, testing, monitoring, and agency reporting

Construction Services

Stormwater construction services
  • Structural design, installation, repair, and retrofitting of Best Management Practices (BMPs)/Stormwater Control Measures (SCMs)
  • Inspections and Documentation
  • Corrective Action Tracking
  • Database Development
  • Regulatory Compliance and submissions
  • Bond Release Inspections
  • Construction Phase Erosion and Sediment Control
  • Low impact development (LID)
  • Underground/underdrain systems
  • Professional Engineer and as-built certifications
  • Hydrologic studies/modeling of new and existing systems

Assessment, Maintenance, and Repair

  • Stormwater drainage collection and treatment systems including catch basins, grates, sand filters, infiltration trenches, green roofs, detention/retention ponds, vaults, inlets, outfalls, drainage channels/pipes, swales, and engineered BMPs.
  • Invasive species and animal control
  • Trash and debris removal
  • Sediment removal
  • Porous/permeable pavement evaluation and cleaning
  • Vegetation management
  • Underground system cleaning
  • Dry well maintenance
  • Confined space and video inspections
  • Vacuuming and flushing
  • Dam and slope stabilization/restoration
  • Rip rap replacement and waterproofing/relining
Apex worker maintaining stormwater BMP

Innovative Data Management

Our Asset Management Services help you make informed decisions about your investments so you can plan and budget accordingly. From mobile data collection, real-time asset information, GIS mapping, and inspection/maintenance planning to capital forecasting, strategic planning, and custom reporting including SMARTS data management, we can help you quickly and easily address stormwater issues before they become costly challenges. To transform your stormwater information into actionable insight, learn about our ARTEMIS® solution.

Apex employee taking a photo of a stormwater detention basin

Related Resources

Stormwater management

Stormwater Services

Industrial stormwater compliance

Industrial Stormwater Compliance

Industry Insights: California SB 205 FAQs

Industry Insights: California SB 205 FAQs

What Our Clients are Saying

“Apex’s stormwater expertise is top‑notch. Plus, they’re all the cliché things you want in your consultant—responsive, detail‑oriented, who provide great communication and think outside the box. One of Apex’s strong suits is stormwater. They manage our stormwater programs including our manuals, management plan, permitting, and corrective action. They really excel at it.”

Senior HSE Representative, Oil & Gas Client

“I have always found your staff great and level of professional abilities exceptional. The Apex staff demonstrates exceptional customer support along with unmatched skill level for the type of projects we have utilized Apex for.”

Owner and President, Confidential Energy Client

“Apex has built a great stormwater program, so we switched over exclusively to them during active construction.”

Oil & Gas

“Your staff could not have been more cooperative, flexible and supportive. I do not think any other consulting team could have done a better job.”

Waste Transportation Firm

“One of Apex’s strong suits is stormwater. They manage our stormwater programs, including our manuals, management plan, permitting, and corrective action. We will definitely see increased stormwater activity in the future and Apex will likely get that business.”

Environmental Coordinator, Oil & Gas

“Stormwater management is a Colorado state requirement. We have to have stormwater controls at any of our construction sites and Apex oversees the installation, inspection, and tracking of all of those controls. They really excel at it.”

Oil & Gas Client

“Apex Companies has been providing stormwater management (SWM) facility inspection, maintenance and repair services to well over 600 SWM facilities. Apex has proven to be reliable, flexible, and knowledgeable regarding inspection, installation and repair of stormwater management facility infrastructure, stabilization of eroding embankments, forebay construction, pest control, removal of sediment/debris and undesirable plant species, and revegetation measures.”

Data Collection Manager, Department of Transportation

How Can We Help You Succeed?

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