Stormwater

contain, collect & convey

system planning, design, & compliance

Stormwater generated during rainfall events is a concern for municipalities, businesses, and construction sites alike. As water flows over land and non-porous surfaces, it can collect soils, trash, contaminants and anything else along its path, damaging the environment and leaving you with possible overflows, fines, and setbacks.

Stormwater systems can entail collection, conveyance, detention, retention, and discharge of stormwater. These components need to be designed, permitted, monitored, reported on, and maintained to keep stormwater under control and our waters clean. Tighter federal, state and regional regulations combined with the pressures of growth have brought stormwater management to the forefront for many municipalities. The efforts required to meet these regulations often go unsubsidized, requiring a higher level of efficiency and innovation on the part of your public works staff.

We provide a full range of Stormwater Management services. From site/civil stormwater planning and design to underground collection and conveyance systems to permitting and management, our engineers, consultants and scientists guide you through the process to ensure that you’re informed and confident in your stormwater system’s performance and compliance. Available stormwater services include:

STORMWATER PERMITTING

PA Chapter 102 – NPDES & E&S Permitting for Construction Activities PA Chapter 105 – Streams, Lakes, Wetlands Impacts PA Chapter 106 – Floodplain Impacts Municipal Land Development Requirements

STORMWATER CONTROL MEASURE (SCM) / BEST MANAGEMENT PRACTICE (BMP) DESIGN

Detention Systems Infiltration Systems Above and Below Ground Conveyance Systems Water Quality Features Streambank Stabilization and Restoration Riparian Buffer Failed BMP Retrofits

TESTING AND INSPECTIONS

Waters of the Commonwealth/Wetland Delineation Infiltration Testing Critical Stage Inspections Water Quality Testing & Tracking SCM/BMP Post-Construction Inspections Qualified Visual Site Inspections

MS4 COMPLIANCE

IDDE Inspections and Identification SOPs for Non-Municipal Entities Pollution Reduction Plans (PRPs) Storm Sewer System and BMP Mapping and Inventory BMP Design and Evaluation BMP O&M Inspections Campus/Community Expansion

CAMPUS/COMMUNITY EXPANSION PLANNING & MAINTENANCE GUIDANCE

INDUSTRIAL STORMWATER SERVICES

Check out our water & wastewater environmental compliance page for more information specific to stormwater environmental compliance for industry and contractors.