• Inner Banner Bg

BMPs

Implementing LID and Green Infrastructure BMPs

Implementing LID and Green Infrastructure Best Management Practices

Implementing LID and Green InfrastructureStormwater runoff is a major cause of water pollution in urban areas. Whatever doesn’t get soaked into the ground and filtered back into the natural water cycle floods and carries trash, bacteria, heavy metals, and other pollutants from the urban landscape into nearby water bodies.

Higher flows as a result of heavy rains can also cause erosion and flooding in urban streams that damage habitat, property, and infrastructure. One can manage stormwater runoff by engineering Blue, Grey, and Green Infrastructure.

Stormwater Infrastructure

Green Infrastructure, or Low Impact Development (LID), uses or mimics the natural processes that result in infiltration, evaporation or use of stormwater. These processes aim to create functional and appealing site drainage that treat stormwater as a resource rather than a waste product. On a broad scale, these practices can be managed so that they maintain or restore a watershed’s hydrologic and ecological functions.

Gray Stormwater Infrastructure includes the conventional piped drainage and water treatment systems that are designed to move urban stormwater away from the built environment. This separate from Blue Infrastructure, which uses small footprint high-efficiency devices installed and retrofitted within existing collection systems.

Implementing Best Management Practices

EEC Environmental (EEC) assists industrial facilities with the identification and implementation of best management practices (BMPs) to assist in consistently meeting California’s established numeric action levels (NALs).

Industrial facilities are required to implement source control BMPs. These BMPs are intended to keep pollutants out of the stormwater and could be structural or non-structural. However, when source control BMPs are not sufficient to consistently meet the NALs, a facility may need to implement advanced BMPs, which are controls intended to remove the pollutants from the stormwater. Examples of source control BMPs and advanced BMPs include:

  • Good Housekeeping (i.e., sweeping, preventing material tracking)
  • Preventative Maintenance
  • Spill and Leak Prevention and Response
  • Material Handling and Waste Management
  • Erosion and Sediment Controls
  • Employee Training
  • Quality Assurance Record Keeping

Advanced BMPs include:

  • Exposure Minimization (i.e., shelters, preventing contact with materials)
  • Containment and Discharge Reduction (i.e., infiltration, reuse, diversion, LID BMPs)
  • Treatment Control BMPs (i.e., mechanical, chemical, biologic, or other treatment technology)

For more information about stormwater infrastructure and best management practices contact EEC by clicking the following link here.

Stormwater Pollution Prevention

What Is Stormwater Management and Why Is It Important?

Stormwater Pollution PreventionStormwater management is the effort to reduce runoff of rainwater or melted snow into streets, lawns and other sites and the improvement of water quality, according to the United States Environmental Protection Agency (EPA).

When stormwater is absorbed into the soil, it is filtered and ultimately replenishes aquifers or flows into streams and rivers. However, when heavy rainwater hits, ground saturated by water creates excess moisture that runs across the surface and into storm sewers and road ditches. This water often carries debris, chemicals, bacteria, eroded soil, and other pollutants, and carries them into streams, rivers, lakes, or wetlands.

So, how does stormwater management help?

In urban and developed areas, impervious surfaces such as pavement and roofs prevent precipitation from naturally soaking into the ground. Instead, water runs rapidly into storm drains, sewer systems and drainage ditches and can cause flooding, erosion, turbidity (or muddiness), storm and sanitary sewer system overflow, and infrastructure damage. However, stormwater design and “green infrastructure” capture and reuse stormwater to maintain or restore natural hydrologies.

Detaining stormwater and removing pollutants is the primary purpose of stormwater management. Pervious Surfaces that are porous and allow rainfall and snowmelt to soak into the soil, Gray infrastructure, such as culverts, gutters, storm sewers, conventional piped drainage, and Blue/Green infrastructure that protect, restore, or mimic the natural water cycle, all play a part in stormwater management.

How can you help?

Educating yourself on where rainwater and snowmelt flow on your property when it doesn’t get absorbed into the ground is a huge first step. Implementing best management practices to reduce runoff and to make sure that it is clean when it leaves your property is the next step.

Stormwater MS4 InspectionsOur staff at EEC Environmental (EEC) has been specializing in stormwater compliance for more than 20 years. EEC can aid anyone looking to improve stormwater management on their property with our experience in developing stormwater pollution prevention plans (SWPPPs), sharing best management practices (BMPs), assisting with design, municipal separate storm and sewer systems (MS4), conducting inspections, and helping clients with Level 1 & 2 ERAs compliance.

Our staff has assisted both MS4 programs and industrial facilities with compliance issues as part of these services. EEC develops Local Implementation Plans (LIPs) that include program management and the inventory, prioritization, and inspection of industrial, commercial, and municipal facilities.

EEC’s Stormwater/National Pollutant Discharge Elimination System (NPDES) group has developed and implemented municipal, industrial, commercial, and construction programs to achieve full compliance with federal, state, and local stormwater regulations.

Successful implementation and management of a stormwater program demand a clear understanding of the NPDES permit requirements and solid teamwork between staff and consultants/contractors. EEC stands poised to support any city or industrial facility with their stormwater compliance needs, having supported other cities and industrial facilities with the development and implementation of their stormwater/NPDES programs, as well as having developed multiple LIPs.

Please click here if you need assistance with stormwater concerns.