Wetland Health Assessments

The Wetland Monitoring and Assessment program is tasked with the job of assessing the health of Delaware’s wetlands. Wetland Assessment Reports

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Library: Management Plans and Monitoring Protocols

A collection of management plans and monitoring protocols from the DNREC Watershed Assessment Section. Wetland Publications Library

Wetland Health Reports

Management Plans and Monitoring Protocols

Long-Term Wetlands Monitoring

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Christina Watershed Wetland Assessment

The Christina Watershed is located in New Castle County, extending north and west into Maryland and Pennsylvania. In Delaware this watershed includes the cities and towns of Wilmington, Elsmere, Newark, and Christiana. Wetland Assessment Reports

Wetland Assessments

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Smyrna Watershed Wetland Assessment

The Smyrna River watershed encompasses 71 square miles and is composed of three sub-watersheds: Smyrna River, Duck Creek, and Cedar Swamp-Delaware Bay. It is located partially in Kent County and partially in New Castle County. The watershed is within the Delaware Bay and Estuary Basin, so all of its waters drain into the Delaware Bay.

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Dam Safety

The Delaware Dam Safety Program works to reduce the risk of failure of dams and to prevent injuries, property damage, and loss of reservoir storage due to dam failure. It oversees the design and construction, operation and maintenance, and inspection of regulated dams in Delaware.

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Questions and Answers

A collection of common questions, and answers, about the coastal construction regulatory program. The Division of Watershed Stewardship’s Shoreline and Waterway Management Section has a series of maps that show the location of the Building Line.

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Adopt-a-Beach

DNREC’s Adopt-A-Beach program is a partnership between the Department and Delaware volunteers, working in tandem to protect and enhance Delaware’s beaches. Going beyond just picking up litter, DNREC’s

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Beach Grass Planting

Volunteers are the backbone of Delaware’s shoreline stabilization. Every March since 1990, except when pandemic conditions prevented it, dedicated volunteers have stabilized Delaware’s sand dunes by planting more than 5 million stems of Cape American beach grass along ocean and bay beaches. The annual beach grass planting is

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You Can Help Protect Beaches and Dunes

There are several ways property owners and visitors can preserve and protect beaches and dunes. Plant Beach Grass Planting ‘Cape’ American beach grass (Ammophila breviligulata)

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Beaches and Shorelines

The DNREC Shoreline and Waterway Management Section works to maintain and improve Delaware’s beaches, shorelines and waterways. The section manages the shoreline through regulation of coastal construction activities and implementation of dune and beach management practices. It also works to protect and enhance eroded beaches to enable continued

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Coastal Construction

Coastal development adds stress to beach systems, especially to dunes. Dunes and beaches are the first lines of protection from wave action for coastal communities during coastal storms. Dunes also act as storage areas that supply sand to the beach during storms.

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Delaware Beach Building Line Maps

The Regulations Governing Beach Protection and the Use of Beaches (7 DE Admin. Code 5102) establishes a “building line” along the coast and stipulate that no construction may take place seaward of that without a Coastal Construction Permit or Coastal Construction Letter of Approval from the Department. The building line is mapped

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Beaches are a Natural Resource

The sandy beaches along the Atlantic Ocean and Delaware Bay shorelines are valuable natural resources to the State of Delaware. The beaches were created by nature and continue to be shaped by wind and waves. The 1972 Beach Preservation Act (7 Del.C. Chapter 68) provides the authority to DNREC to enhance, preserve, and protect the

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Macroalgae in Delaware’s Inland Bays

The water quality of Delaware’s Inland Bays is very important to outdoor recreational activities available for Delawareans and visitors alike. The Assawoman, Indian River and Rehoboth Bays provide a superb venue for fishing, boating, waterskiing and other related outdoor activities. However, like so many natural resources, these areas also suffer from the negative effects of

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Landowner Protection Options

Approximately 45 percent of all wetlands in the state are located on privately owned lands, with the remaining wetlands found on both state and federal lands. With nearly half of Delaware’s wetlands found on private lands it is important for landowners to recognize the benefits wetlands provide and work towards conserving and preserving them.

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The Delaware Wetlands Conference

The 2026 Delaware Wetlands Conference has been rescheduled for March 4 and 5 after its original dates coincided with a large winter storm. The conference will still take place at the Chase Center on the Riverfront in Wilmington. The conference planning committee is excited to integrate feedback and

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Leipsic Watershed Wetland Assessment

The Leipsic River watershed is composed of two sub-watersheds, Leipsic River and Little Creek, and encompasses 128 square miles. It is located in Kent County within the Delaware Bay and Estuary Basin, and all of its waters drain into the Delaware Bay. Land cover in this watershed is dominated by wetlands and agriculture.

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Red Lion Watershed Wetland Assessment

The Red Lion watershed is located within New Castle County, where it encompasses 46,283 acres (72 square miles) of land within the Delaware Bay and Estuary Basin. It is composed of the C&D Canal East, Dragon Creek, Red Lion Creek, Army Creek, and Broad Dike Canal. Approximately 16% of the land area of the watershed

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Chesapeake Bay Projects

This page includes information on some of the projects undertaken by DNREC and its partners to help meet the goals of the Chesapeake Bay Watershed Implementation Plan.

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Chesapeake Bay Watershed Implementation Plan – Phase III

There have been three phases of Delaware’s Chesapeake Bay WIP. Delaware developed its Phase I WIP in 2010 and its Phase II WIP in 2012. Both the Phase I and Phase II WIPs describe actions and controls to be implemented by 2017 and 2025 to achieve applicable water quality standards. The Phase III WIP provides

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Chesapeake Bay Watershed Implementation Plan – Phase I

Draft Phase I Watershed Implementation Plans (WIPs) were due to EPA on Sept. 1, 2010. Final plans were submitted on Nov. 29, 2010. Following the release of Delaware’s Draft Phase I WIP, numerous comments and questions from both EPA and various stakeholder groups within the watershed were submitted.

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Chesapeake Bay Watershed Implementation Plan – Phase II

Delaware’s Draft Phase II Watershed Implementation Plan for the Chesapeake Watershed was submitted to the EPA on Dec. 15, 2011. EPA reviewed the document and provided comments in Feb. 2012. Public comments were accepted through March 21, 2012. All suggestions were considered and the document was modified accordingly.

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Events and Workshops

The DNREC Nonpoint Source Program has hosted and participated in a series of events, workshops, and presentations designed to promote and support improvements to the quality of Delaware’s waterways. Blackbird Creek Fall Festival (Oct. 18, 2025) The Nonpoint Source (NPS) Program staffed an exhibit at the annual

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Chesapeake Bay Milestones

To continue accelerating progress toward meeting water quality goals, the EPA and Chesapeake Bay Program jurisdictions, including Delaware, agreed to set interim two-year milestones – or short-term goals – as a critical part of an accountability framework. Chesapeake Progress Find data and

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Chesapeake Bay Watershed Implementation Plan

Delaware is among six Chesapeake Bay Watershed states – along with Maryland, Virginia, West Virginia, Pennsylvania, and New York – and the District of Columbia committed to a federal-state initiative to develop a pollution “diet” that will help restore the water quality of the Bay and its tidal waters by 2025. [column

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Verification of Best Management Practices

The implementation, tracking and reporting of Best Management Practices (BMPs) has been at the center of the Chesapeake Bay Program partnership’s restoration efforts for almost three decades. Properly installed and functioning practices and technologies reduce local flooding, protect sources of drinking water, ensure against the collapse of stream

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Watershed Plans and Strategies

Numerous documents describing plans or strategies for water quality and watershed improvements have been developed over the years. Some of these efforts originated through the Tributary Action Team process while others came through other initiatives. All of the documents below can be considered watershed management plans for the Water Quality Improvement Projects grant program

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Pollution Control Strategies and Tributary Action Teams

A 1997 federal court case required Delaware to set pollution limits for its waterways. These limits are called Total Maximum Daily Loads or TMDLs, a term you will hear a lot in water pollution discussions. In order to meet these new pollution limits, we are identifying ways to reduce water pollution. Usually, citizens don’t get

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Integrated Report: 305(b) Report and 303(d) List

Section 305(b) of the Federal Clean Water Act requires that states and other entities prepare and submit Watershed Assessment Reports to the US EPA on April 1 of every even-numbered year.

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You Can Help Protect Delaware’s Waterways

There are always things that you can do in your everyday life, no matter where you live, to help protect the waterways that serve as our drinking water sources, habitat for wildlife, and places of recreation. Maintain a Healthy Lawn and Garden A healthy lawn and garden makes a

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Watershed Assessment and Management

The Watershed Assessment and Management Section oversees the health of the state’s surface water resources and takes actions to protect and improve water quality for aquatic life and human use.

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Whole Basin Management

Beginning in the 1990s, the Department of Natural Resources and Environmental Control (DNREC) took a different approach to assessing, managing, and protecting Delaware’s natural resources. This approach, known as Whole Basin Management, encouraged the various programs throughout DNREC to work in an integrated manner to assess different geographic areas of the state defined on the

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Protecting Our Waterways

There are many things each of us can do to help reduce nutrient and sediment pollution entering Delaware’s waterways. Our efforts will not only help protect the environment, but in many cases, when you lend a hand to protect our waterways, you will also find that you’re adding beauty to your yard,

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Water Quality Monitoring

Delaware’s bays, ponds, streams, and rivers are monitored on a regular basis to assess the quality of Delaware’s surface waters. Much of the monitoring is done by DNREC, though other groups, including federal agencies, academic institutions, and citizen volunteer monitoring programs, also contribute to these efforts.

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Inland Bays Pollution Control Strategy

The Inland Bays Pollution Control Strategy (PCS) and accompanying regulations were finalized in Nov. 2008. This strategy is designed to improve the water quality of the bays (Rehoboth Bay, Indian River Bay, and Little Assawoman Bay), as well as the rivers, streams, and ponds that drain to the bays. ADVISORY: A

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Surface Water Quality Standards

The National Clean Water Act of 1972 set in place a program that is intended to restore the chemical, physical, and biological integrity of the nation’s waters. To reach these goals, a series of steps were mandated by Congress for the Environmental Protection Agency and the individual States to take. The first step was for

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Promoting Shellfish Safety

To ensure the safety of Delaware’s shellfish growing areas, it is important that residents and visitors help maintain good water quality and limit pollution while recreating in or near shellfish growing areas.

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Shellfish Plant Inspections

Plant inspections of all shellfish shippers and processors are conducted routinely by certified Shellfish Program staff to ensure compliance with national food safety regulations and those specific to the shellfish industry. Andrew Bell Environmental Scientist 302-739-9939

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Delaware Shellfish Program

The DNREC Shellfish Program is responsible for protecting public health by minimizing the risk of food borne illness due to the consumption of shellfish. Growing Waters and Plant Inspections Andrew Bell Environmental Scientist 302-739-9939 Enforcement Natural Resources Police

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Tax Ditch Program

DNREC provides administrative and technical assistance and support to tax ditch organizations and landowners across the State. Tax Ditch Law Questions and Answers

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Tax Ditch Questions and Answers

The DNREC Tax Ditch Program has collected questions often asked by landowners about tax ditches. If you have additional questions, please contact the Tax Ditch Program at 302-855-1930 or by email. Tax ditch channels range in size from six to 80 feet wide, and two

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Drainage and Stormwater Assistance

Each year thousands of Delawareans express concerns about drainage and stormwater. In many cases, residents don’t know who to contact if they have a problem. Several state and local agencies, including DNREC, DelDOT, conservation districts and municipal public works programs can help resolve drainage and flooding related problems.

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Drainage Programs

The Drainage Programs work with landowners, tax ditch organizations and federal, state and local agencies to improve drainage, stormwater management and water quality in Delaware. Drainage Program 302-855-1930 Report Drainage Concerns 302-855-1955

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Wetland And Channel Restoration

The Drainage Program is responsible for over 45 wetland and stream restoration projects, resulting in approximately 180 acres of total restoration and habitat creation. Restoration activities are put into practice in a variety of locations, including local schools (creating an outdoor classroom), backyards of private landowners (Smith and Battista), marginal agricultural fields,

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Success Stories: Pike Creek

Pike Creek is in northern New Castle County and is a tributary of White Clay Creek within the White Clay Creek subbasin. The lower portions of the White Clay Creek are tidally influenced. In 2000, the President signed a law adding 190 miles of the White Clay Creek and its tributaries to the National Wild

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Success Stories: Trap Pond

Southern Delaware’s Trap Pond is a tributary of Broad Creek, which drains to the Nanticoke River and flows to the Chesapeake Bay. This area has a unique ecology, as it is home to the northernmost natural stand of bald cypress in the United States. The area also contains a 2,000-acre wetland, one of the largest

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Success Stories: Gravelly Branch

Southern Delaware’s Gravelly Branch watershed drains into the Nanticoke River, which flows into the Chesapeake Bay. Gravelly Branch begins in the town of Ellendale and flows toward the city of Seaford. The major land use in the 24,423-acre Gravelly Branch watershed is agriculture.

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Success Stories: Cow Bridge Branch

Stockley Branch flows into Cow Bridge Branch watershed, which spans 28,676 acres and is located in the Indian River watershed in southeastern Sussex County. The Indian River Bay watershed makes up one of three of Delaware’s interconnected Inland Bays (Rehoboth Bay, Indian River Bay, and Little Assawoman Bay). [button

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Success Stories: Upper Marshyhope Creek

The Delaware portion of the Marshyhope Creek watershed (Upper Marshyhope Creek) lies within Kent and Sussex counties on the western edge of Delaware. The creek flows into Maryland before eventually discharging into the Nanticoke River, which in turn empties into the Chesapeake Bay. The drainage area of the Marshyhope Creek watershed within Delaware is approximately

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Success Stories: Little Assawoman Bay

Little Assawoman Bay — the smallest of Delaware’s Inland Bays — is connected to Indian River Bay on the north by the Assawoman Canal and to Assawoman Bay on the south via a narrow channel. The Little Assawoman Bay watershed is an agriculture-dominated watershed covering three square miles with no influencing point sources. The area

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