Author: Rachel Shoults

Constructed wetlands are increasingly recognized as a sustainable and cost-effective method for managing stormwater while enhancing environmental quality. These engineered ecosystems mimic natural wetlands by using vegetation, soil, and microorganisms to treat and manage water, making them an essential component of modern stormwater management strategies. Whether you’re a property manager, engineer, or contractor, understanding the benefits and functionality of constructed wetlands can help you make informed decisions for your stormwater management needs.

What Are Constructed Wetlands?

Constructed wetlands are man-made systems designed to treat stormwater, wastewater, or other polluted water sources. They are often larger, engineered systems intended to treat significant volumes of water and provide extended water retention, making them particularly effective for water quality improvement and flood control. They are carefully planned and constructed to optimize the natural processes of filtration, sedimentation, and nutrient absorption. These wetlands come in two primary types:

1. Surface Flow Wetlands: Water flows horizontally over the surface, through a dense layer of vegetation.
2. Subsurface Flow Wetlands: Water flows through a porous medium (like gravel) beneath the surface, preventing exposure to the air.

Both types effectively reduce pollutants, manage water flow, and support local biodiversity.

Benefits of Constructed Wetlands

1. Pollution Reduction

Constructed wetlands are highly effective at removing contaminants, including:

• Nutrients: Such as nitrogen and phosphorus, which can cause harmful algal blooms.
• Sediments: Filtering out suspended solids that can degrade water quality.
• Pathogens and Toxins: Microorganisms in the wetland degrade harmful bacteria and chemical pollutants.

2. Flood Mitigation

By temporarily storing stormwater, constructed wetlands reduce peak flow rates and help prevent downstream flooding. They can also recharge groundwater systems, ensuring a steady supply of water for future use.

3. Biodiversity Enhancement

Constructed wetlands provide habitat for a wide range of wildlife, including birds, amphibians, and insects. They can also support native vegetation, which further contributes to ecosystem health.

4. Cost-Effectiveness

Compared to traditional stormwater infrastructure, constructed wetlands require lower capital and maintenance costs over their lifespan. Their natural processes reduce the need for chemical treatments and frequent interventions.

5. Aesthetic and Community Value

Constructed wetlands can be designed as attractive landscape features that enhance property value and create recreational opportunities for communities.

How Constructed Wetlands Work

Constructed wetlands replicate the natural processes of filtration, sedimentation, and nutrient absorption. Here’s a step-by-step breakdown of their functionality:

1. Inflow: Stormwater or wastewater enters the wetland through an inlet structure.
2. Sedimentation: Larger particles settle out as water slows down in a sedimentation basin.
3. Filtration: Water passes through vegetation and soil, where plants and microbes absorb nutrients and break down pollutants.
4. Outflow: Treated water exits the wetland through an outlet structure, ready for safe discharge or reuse.

Applications of Constructed Wetlands

Constructed wetlands are versatile and can be tailored for various applications, including:

• Urban Stormwater Management: Treating runoff from roads, parking lots, and rooftops.
• Industrial Wastewater Treatment: Managing effluents from factories and processing plants.
• Agricultural Runoff Control: Filtering fertilizers, pesticides, and sediments.
• Habitat Restoration Projects: Recreating wetland ecosystems in degraded areas.

Designing and Maintaining Constructed Wetlands

A well-designed constructed wetland ensures long-term functionality and efficiency. Key considerations include:

• Site Selection: Analyze soil type, hydrology, and available space.
• Plant Selection: Use native species adapted to local conditions for better ecological performance.
• Hydraulic Design: Ensure proper water flow to prevent stagnation or erosion.

Regular maintenance is crucial for optimal performance, including:

• Removing accumulated sediment.
• Controlling invasive plant species.
• Monitoring water quality and vegetation health.

Why Choose Constructed Wetlands for Your Property?

If you manage commercial properties or oversee municipal stormwater projects, constructed wetlands offer an eco-friendly and efficient solution for regulatory compliance. They align with sustainability goals, improve water quality, and provide long-term savings compared to traditional infrastructure.

Partner with iSTORMWATER for Expert Solutions

At iSTORMWATER, we specialize in designing, constructing, and maintaining stormwater management systems, including constructed wetlands. Our team of experts, including an in-house stormwater engineer, ensures tailored solutions to meet your specific needs. Contact us today to learn how constructed wetlands can enhance your stormwater management strategy while benefiting the environment.

Contact iSTORMWATER at (410) 231-3455 or contact us online today to learn how we can help.

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By integrating constructed wetlands into your stormwater management plan, you contribute to a healthier environment and a more resilient community. Explore this sustainable solution to tackle water challenges with efficiency and care.

As urban areas expand, managing stormwater effectively has become more critical than ever. Solutions like rain gardens, bioswales, dry swales, stormwater planters, and biofilters are transforming how we handle runoff, mitigate flooding, and enhance urban ecosystems. In this post, we dive into the benefits, advanced applications, and design considerations of these green infrastructure systems, with a focus on bioretention.

What Are Bioretention Systems and Related Solutions?

Bioretention systems, including rain gardens, bioswales, and biofilters, are designed to manage and treat stormwater runoff. These systems use soil, plants, and microbes to capture pollutants, reduce peak runoff flows, and support healthier watersheds.

• Rain Gardens: Shallow, vegetated depressions that collect and treat stormwater from rooftops, driveways, and other impervious surfaces.
• Bioswales and Dry Swales: Linear systems that direct and filter stormwater along streets or parking lots, ideal for narrow spaces.
• Stormwater Planters: Engineered containers with vegetation that manage runoff in tight urban areas.
• Biofilters: Advanced systems that use specialized soil media and vegetation to remove pollutants from stormwater.

Each of these systems contributes to a sustainable urban landscape by improving water quality and mitigating flooding.

Why Are Rain Gardens and Bioretention Systems Essential?

These systems offer multiple benefits, making them a cornerstone of green infrastructure:

1. Pollution Control

Rain gardens, bioswales, and biofilters trap contaminants like sediment, oil, and nutrients before they enter waterways, protecting aquatic ecosystems.

2. Flood Mitigation

By capturing and infiltrating stormwater, bioretention systems reduce the risk of localized flooding, a growing concern in dense urban areas.

3. Ecosystem Restoration

Green infrastructure, such as stormwater planters and dry swales, supports native plants and wildlife, creating thriving ecosystems in urban settings.

4. Groundwater Recharge

These systems allow stormwater to percolate into the ground, replenishing local aquifers and reducing the demand on municipal water supplies.

5. Urban Heat Island Mitigation

Vegetated systems like bioswales and rain gardens help cool urban areas by adding greenery and improving air quality.

Advanced Applications of Bioretention and Related Systems

Beyond stormwater management, these systems contribute to sustainable urban design in innovative ways:

1. Multifunctional Landscapes

Rain gardens and stormwater planters can double as decorative landscaping, blending functionality with aesthetic appeal.

2. Streetscape Enhancements

Bioswales and dry swales are often integrated into streetscapes to manage runoff while improving walkability and urban aesthetics.

3. Water Reuse Integration

Some biofilters and stormwater planters are designed to capture runoff for irrigation or other non-potable uses, reducing water consumption.

Designing Effective Bioretention Systems and Rain Gardens

Creating a successful system requires careful planning and attention to detail. Key design considerations include:

1. Sizing and Placement

Rain gardens, bioswales, and dry swales should be strategically located to intercept runoff from impervious areas. Proper sizing ensures they can handle expected stormwater volumes.

2. Soil and Plant Selection

The right soil mix and vegetation are essential for filtering pollutants and supporting infiltration. Native plants are ideal for their resilience and low maintenance needs.

3. Pretreatment Features

Adding sediment forebays or similar features extends the life of systems like biofilters and stormwater planters by reducing clogging risks.

4. Maintenance Access

Ensure systems are accessible for routine maintenance, such as debris removal and replanting.

Maintaining Bioretention Systems and Green Infrastructure

Regular maintenance is crucial to keeping rain gardens, bioswales, and similar systems performing at their best. Key tasks include:

• Seasonal Inspections: Check for erosion, sediment buildup, and plant health.
• Sediment and Debris Removal: Clear sediment and litter to maintain infiltration capacity.
• Replanting, Mulching, and Weeding: Replace invasive or damaged plants with suitable native species.
• Soil Testing: Periodically test soil to ensure proper infiltration and pollutant removal.

Community and Economic Benefits of Bioretention Systems

In addition to their environmental advantages, rain gardens and bioswales enhance urban spaces, boost property values, and create opportunities for community education on sustainability. These systems also reduce long-term costs associated with flood damage and water treatment.

Embracing Green Infrastructure

Rain gardens, bioswales, dry swales, stormwater planters, and biofilters exemplify how nature-inspired solutions can address complex urban challenges. These systems not only manage runoff effectively but also contribute to greener, more resilient cities. Whether you’re managing a commercial property, planning a residential development, or upgrading municipal infrastructure, investing in bioretention is a smart, sustainable choice.

Looking to integrate bioretention or similar systems into your stormwater strategy? Contact iSTORMWATER at (410) 231-3455 or contact us online today to learn how we can help.

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Bioretention Frequently Asked Questions (FAQs)

What types of pollutants can bioretention systems remove?
Bioretention systems effectively remove pollutants like sediment, phosphorus, nitrogen, oil, grease, and heavy metals.

How much stormwater can a bioretention system handle?
The capacity of a bioretention system depends on its size, soil media, and design, but they are typically sized to treat the first inch of rainfall from contributing impervious areas.

Can bioretention systems be retrofitted into existing developments?
Yes, bioretention systems can be integrated into existing landscapes, often replacing underperforming traditional infrastructure.

 

Permeable pavement is becoming a cornerstone of modern stormwater management, offering an effective, eco-friendly solution to reduce runoff and promote sustainable development. By incorporating these innovative surfaces into commercial or residential landscapes, property managers can achieve compliance, mitigate flooding, and protect local waterways. Here’s a closer look at the benefits of permeable pavement, their installation process, and how they help manage stormwater effectively.

What Is Permeable Pavement?

Permeable pavement, also known as pervious pavement or porous pavement, is a specially designed paving system that allows water to pass through its surface into a subsurface reservoir, where it can infiltrate into the ground. Unlike traditional impervious materials such as asphalt or concrete, permeable pavement includes options like porous concrete and pervious concrete, which are made with spaces or joints filled with gravel to facilitate water flow.

These pavements are commonly used in parking lots, walkways, patios, and driveways. They not only enhance the aesthetics of a property but also provide a practical solution for stormwater control, especially in areas with strict environmental regulations.

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The Benefits of Permeable Pavement for Stormwater Management

1. Reduced Runoff – Permeable pavement significantly reduces surface runoff by allowing rainwater to seep directly into the ground. This minimizes the strain on municipal stormwater systems and reduces the risk of flooding.
2. Improved Water Quality – As water filters through the pavement system, it is naturally treated by the underlying materials, which trap sediments, oils, and pollutants. This process improves the quality of water re-entering the local watershed.
3. Erosion Control – By managing stormwater at the source, pervious pavement helps prevent erosion caused by uncontrolled runoff. This is particularly beneficial for properties with sloped landscapes.
4. Regulatory Compliance – Many municipalities require properties to meet stormwater management regulations. Installing porous pavement can help meet these requirements while avoiding potential penalties or fees.
5. Long-Term Durability – High-quality porous concrete and pervious concrete are built to last, requiring less maintenance than traditional paving methods while maintaining their effectiveness over time.

How Is Permeable Pavement Installed?

Installing permeable pavement involves several key steps to ensure optimal performance:

1. Site Preparation – The existing surface is excavated to create space for the permeable pavement system. Proper grading ensures water flows as intended.
2. Base Layer Installation – A layer of crushed stone is added to create a stable base and provide storage for stormwater.
3. Filter Layer Addition – A geotextile filter fabric is often placed between the base layer and the soil to prevent clogging and ensure efficient drainage.
4. Pavement Placement – Permeable pavers, porous concrete, or pervious concrete are carefully installed with uniform gaps between them, which are filled with gravel or other permeable materials.
5. Compaction and Final Checks – The system is compacted to ensure stability, and tests are conducted to confirm proper infiltration rates.

How Permeable Pavement Reduces Runoff

Traditional paved surfaces contribute to urban flooding by funneling rainwater directly into storm drains. In contrast, pervious pavement allows water to infiltrate the ground gradually, mimicking the natural hydrologic cycle. This reduces peak flow rates during heavy rain events and decreases the load on municipal stormwater infrastructure.

By installing porous pavement, property managers can:

• Reduce standing water and puddling.
• Minimize downstream erosion and flooding.
• Promote groundwater recharge.

Is Permeable Pavement Right for Your Property?

Whether you manage a commercial facility or a residential property, permeable pavement can provide an attractive and functional solution for stormwater management. With benefits ranging from enhanced water quality to compliance with environmental standards, these systems are a smart investment for any sustainable landscape.

For expert guidance and professional installation of permeable paving systems in Maryland, DC, or Virginia, contact iSTORMWATER today. Our team of specialists can help you design a custom solution tailored to your property’s unique needs.

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Call us today at (410) 231-3455 or contact us online to schedule a consultation.

When it comes to managing outdoor spaces, property managers often find themselves comparing two key professionals: stormwater contractors and landscapers. While both play critical roles in maintaining commercial and residential properties, their expertise and scope of work are vastly different. Knowing who to call for specific issues can save time, money, and ensure your property remains compliant with local regulations.

In this blog, we’ll break down the roles of stormwater contractors and landscapers to help you determine which is best suited to address your property’s needs.

What Does a Stormwater Contractor Do?

A stormwater contractor specializes in managing stormwater runoff to prevent flooding, erosion, and pollution. Their expertise lies in designing, installing, and maintaining systems that control stormwater effectively. Additionally, stormwater contractors incorporate plantings into their services, focusing on selecting the correct native plants that enhance stormwater facility performance.

Key Services Offered by Stormwater Contractors:

1. Stormwater System Design and Installation
   Stormwater contractors develop systems like retention and detention ponds, bioswales, and underground stormwater chambers to manage runoff efficiently.
2. Stormwater System Maintenance
   Regular inspections, debris removal, and sediment control are essential to keep systems functioning optimally and compliant with local regulations.
3. Erosion and Sediment Control
   Contractors use techniques like hydroseeding and silt fencing to stabilize soil and prevent sediment from entering waterways.
4. Native Plant Selection and Plantings
   Stormwater contractors identify and install native plants that thrive in stormwater facilities, contributing to erosion control, pollutant filtration, and system sustainability.
5. Regulatory Compliance
   They ensure your property meets all federal, state, and local stormwater regulations, avoiding costly fines and penalties.

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What Does a Landscaper Do?

Landscapers focus on the aesthetic and functional aspects of outdoor spaces. They enhance curb appeal, improve usability, and promote environmental sustainability through plantings and hardscape features.

Key Services Offered by Landscapers:

1. Planting and Maintenance
   Landscapers handle the installation and upkeep of trees, shrubs, and flowers to create visually appealing landscapes.
2. Lawn Care
   Mowing, fertilizing, and aerating lawns to ensure healthy, vibrant grass.
3. Irrigation Systems
   Installing and maintaining sprinkler systems to support the health of plants and lawns.
4. Hardscaping
   Designing and installing patios, walkways, and retaining walls to enhance the functionality of outdoor spaces.

Key Differences Between Stormwater Contractors and Landscapers

Aspect	Stormwater Contractors	Landscapers
Primary Focus	Stormwater management and regulatory compliance	Aesthetic and functional landscaping
Specialized Systems	Aboveground and belowground stormwater management facilities. E.G. Retention/detention ponds, bioswales, StormFilters, bioretention, etc.	Irrigation, hardscaping, plantings
Compliance Expertise	Ensures adherence to environmental regulations	Typically does not handle compliance
Planting Focus	Native plants designed for stormwater system performance	Decorative plants and lawn care

When to Hire a Stormwater Contractor

You should hire a stormwater contractor if:

• You need to install, maintain, or repair a stormwater system.
• Your property has drainage issues like flooding or erosion.
• You must comply with stormwater regulations.
• You require plantings designed to improve stormwater system efficiency.

When to Hire a Landscaper

You should hire a landscaper if:

• You want to enhance your property’s curb appeal.
• Your lawn or garden requires maintenance.
• You need hardscaping or irrigation system services.

Can Stormwater Contractors and Landscapers Work Together?

Yes! In fact, many projects benefit from collaboration between stormwater contractors and landscapers. For example:

• Retention Pond Landscaping: While the contractor ensures proper pond function and native plantings, a landscaper could add decorative plants to improve aesthetic appeal.
• Erosion Control in Landscaped Areas: A contractor stabilizes soil and selects the correct native plants, while the landscaper focuses on maintaining visual harmony with the rest of the property.

The Bottom Line

While stormwater contractors and landscapers both contribute to the health and functionality of outdoor spaces, they serve distinct purposes. By understanding their roles, property managers can make informed decisions, ensuring their properties remain compliant, functional, and visually appealing.

If you need expert stormwater management solutions, iSTORMWATER is here to help. Our team specializes in inspecting, maintaining, and repairing stormwater systems that protect your property and the environment.

Call us today at (410) 231-3455 or contact us online to discuss your stormwater needs!

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Managing stormwater effectively is crucial for commercial properties, communities, and construction sites. However, common misconceptions about stormwater systems can lead to costly mistakes, non-compliance, and environmental harm. Let’s debunk the top myths about stormwater management to ensure your property or project is protected and compliant.

Myth #1: Stormwater Systems Are Only Important During Storms

Reality: Stormwater systems do much more than handle rainfall during storms -they manage runoff, filter pollutants, and prevent erosion year-round. Even during dry weather, debris, sediment, and pollutants can accumulate in stormwater infrastructure, reducing its capacity to handle heavy rain. For example, clogged drains and overfilled basins often result from months of neglect, not sudden rainfall.

Take Action: Schedule regular inspections and cleanings to ensure your stormwater system is always ready, regardless of the weather.

Myth #2: My Property Doesn’t Flood, So Stormwater Systems Aren’t a Priority

Reality: Flood prevention is just one role of a stormwater management system. Even if your property doesn’t experience flooding, neglecting stormwater systems can lead to other issues, such as erosion, water contamination, and structural damage to property foundations. Additionally, local regulations often require property owners to have functioning systems to minimize runoff pollution.

Why It Matters: Stormwater runoff carries oil, chemicals, and debris into local waterways, leading to potential legal and environmental consequences.

Myth #3: Maintenance Is Optional for Stormwater Systems

Reality: Skipping maintenance isn’t just risky – it’s often against the law. Stormwater systems are subject to local, state, and federal regulations, and non-compliance can result in hefty fines. Beyond regulatory issues, a poorly maintained system can overflow, causing water damage, and require costly repairs or replacements.

Key Tip: Work with a professional stormwater management company to establish a maintenance plan that includes inspections, cleanings, and repairs. Proactive maintenance is always more cost-effective than reactive fixes.

Myth #4: Stormwater Leaves My Property, So It’s Not My Responsibility

Reality: Even after stormwater runoff leaves your property, you may still be liable for its environmental impact. Regulations like the Clean Water Act require property owners and contractors to prevent contaminants from entering local water systems. Failure to implement proper stormwater best management practices (BMPs) can lead to costly fines.

Best Practices: Install and maintain BMPs such as silt fences, retention basins, and vegetative buffers to control runoff and improve water quality.

Myth #5: Retention and Detention Ponds Are ‘Set It and Forget It’ Systems

Reality: Retention and detention ponds are vital for managing stormwater, but they are not maintenance-free. Over time, sediment builds up, vegetation overgrows, and structural components deteriorate, reducing the pond’s effectiveness. Without regular care, these ponds can fail during heavy storms, leading to flooding and compliance violations.

Maintenance Checklist:

• Inspect for sediment buildup quarterly.
• Manage invasive vegetation to maintain proper water flow.
• Check for cracks or leaks in outlet structures.

Bonus Tip: Partnering with a stormwater management provider ensures proper upkeep and regulatory compliance for these systems.

Myth #6: Erosion Control Measures Are Unnecessary for Established Properties

Reality: Erosion isn’t just a concern for construction sites – it’s an ongoing issue for commercial properties, HOAs, and developments. Without proper stabilization, exposed soil can erode, sending sediment into stormwater systems. This not only reduces system efficiency but can also lead to costly repairs and environmental violations.

Solutions to Consider:

• Hydroseeding: Quickly establishes vegetation to stabilize soil.
• Erosion Blankets: Protect slopes and high-traffic areas from runoff damage.
• Check Dams: Slow down water flow in channels, reducing sediment transport.

These measures save money over time by preventing damage and ensuring compliance with erosion control regulations.

Myth #7: DIY Stormwater Management Can Save Costs

Reality: While it might seem cheaper to handle stormwater management in-house, the complexity and regulatory requirements often make professional help essential. Certified stormwater experts understand local laws, system design, and maintenance best practices, ensuring that your property avoids fines and stays compliant.

Hidden Costs of DIY:

• Improper maintenance can lead to system failures and costly emergency repairs.
• Non-compliance with regulations can result in fines or project delays.
• Lack of expertise may lead to missed opportunities for system optimization.

Why Professionals Matter: Partnering with a stormwater management company provides peace of mind, protects your property, and ensures long-term savings.

Take the Next Step in Stormwater Management

Understanding and addressing these myths is critical for commercial property owners, HOA and property managers, and contractors. Avoiding misconceptions helps you protect your property, maintain compliance, and contribute to environmental sustainability.

At iSTORMWATER, we provide tailored solutions to meet your stormwater needs. Whether you require system design, inspections, regular maintenance or repairs, our experts are here to help.

Call us today at (410) 231-3455 or contact us online to schedule a consultation and ensure your stormwater systems are ready to perform at their best.