General Information

What is mitigation banking?

The concept of mitigation banking has been around since the ’70’s. In 1995 the federal agencies released guidance on establishing, using, and operating mitigation banks. Recently there has been a renewed interest in its use as a regulatory tool. Basically, mitigation banking creates an economic incentive for restoring, creating, enhancing and/or preserving wetlands.

Mitigation banks typically involve the consolidation of many small wetland mitigation projects into a larger, potentially more ecologically valuable site. Further, mitigation banks require the up-front compensation prior to affecting a wetland at another site. This ensures the success of the mitigation before unavoidable damage occurs at another site. With proper implementation and guidelines, mitigation banking has the potential to increase ecological benefits, save money for project applicants, and improve efficiencies in application and permitting processes.

The draft rule (WAC 173-700) identifies the criteria necessary for implementing an environmentally sound banking system in Washington State.

How are wetlands regulated now?

Wetlands are regulated under a number of statutory authorities. Regulatory agencies from the federal, state and local governments all have an interest in overseeing wetland protection.

Under current regulatory programs, parties seeking permits for activities that affect wetlands must first avoid and then minimize those effects. Any remaining damage must be compensated. Historically, the regulatory preference for compensation has been on-site creation, restoration, or enhancement of a wetland. These mitigation efforts have resulted in several smaller, "postage stamp" wetlands that have had limited success in reaching full function potential.

The sequencing of avoidance, minimization, and compensation still applies prior to using credits from any mitigation bank. However, in contrast to traditional mitigation activities, mitigation banking requires that compensation--restoration, creation, enhancement, and/or preservation--occurs before a site is affected by a project. Bank projects are put in place prior to allowing unavoidable impacts by a project. Credits are generated by this up-front activity. Those credits can then be used by the bank sponsor or sold to another party to offset impacts to wetlands that occur in other locations. Again, only impacts that cannot be avoided or minimized are available for compensation through credits from a mitigation bank.

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How will state banking rules change existing practices?

The law, Chapter 90.84.RCW, Wetlands Mitigation Banking, provides no new authority for regulating wetlands, other than wetland bank projects. Current sequencing practices of avoidance, minimization, and compensation still apply. However, the draft rule (WAC 173-700) focuses on procedures for certifying banks as well as the process for implementing banks. Essentially, the draft rule adds another tool to the regulatory toolbox for protecting wetlands.

Ecological benefits include:

  • Ensures greater likelihood of success, since banks must be up and running before a wetland can be affected.
  • Potential to consolidate piecemeal mitigation projects into one contiguous, unified ecosystem. Such consolidation encourages greater diversity of habitat and wetland functions and creates more sustainable systems.
  • Reduces temporal losses since mitigation banking projects must be implemented in advance of impacts. Temporal losses occur when impacts to existing wetlands are compensated for with soon-to-be or newly constructed wetlands.
  • Provides more flexibility for mitigating unavoidable damage by allowing mitigation to occur off-site when a greater ecological benefit results.
  • Provides a planning tool for meeting wetland needs within a watershed, basin, or particular landscape, versus being tied to piecemeal mitigation.
  • Uses economic incentive to increase compliance. The bank provider shoulders the burden of demonstrating up front that the mitigation effort is successful. Monitoring and maintenance are also required of the banker to ensure continued success after construction is completed.

Economic benefits include:

  • Increases efficiencies in permitting. There will be opportunities to certify banks through local, state and federal permitting activities concurrently. Those purchasing credits from a bank experience a more streamlined permit process, since proposed compensatory mitigation is already constructed and functioning.
  • Reduces enforcement burden on regulatory agencies. Each mitigation bank applicant must demonstrate that performance standards are met prior to the releasing of credits.

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How does mitigation banking fit within the bigger picture
of watershed planning?

Ideally, mitigation banking can best be implemented in the context of watershed planning. Mitigation banks can be designed and located to address specific watershed needs. This could mean enhancing or restoring wetland functions that are in short supply or are of critical importance in a given watershed or drainage basin.

Good ecological assessment of watersheds, combined with transportation, infrastructure, and development planning, will allow mitigation banks to be designed and located in areas where they serve the greatest ecological good.

Who is likely to set up a bank?

Some examples of those with interests in establishing a mitigation bank are:

  • Transportation agencies and utilities, such as the departments of Transportation or Public Works, have many projects that affect wetlands. These agencies typically have linear development projects, such as roads or pipelines, that invariably damage wetlands.
  • Local jurisdictions may want to encourage the establishment of a mitigation bank to help meet local watershed needs.
  • Businesses that anticipate having large or ongoing wetland impacts may create banks rather than mitigating in a piecemeal fashion.
  • Entrepreneurs may be interested in creating mitigation banks for the purpose of selling credits.

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What approach has been used to write and review the draft rule?

Ecology is using a collaborative approach to develop and review the draft rule (WAC 173-700). An 18-member advisors group was formed to develop the draft rule. The group continues to play a pivotal role by adding diverse viewpoints from local, state, and federal agencies; environmental interests; private bank development; agricultural concerns; and business.

Under the Administrative Procedures Act (Chapter 34.05 RCW), an agency may test a rule before it is formally adopted. The draft rule is being tested through a pilot program that was authorized in 2004. The advisors group is analyzing the draft rule and identifying necessary revisions.  Click here for more information on the draft rule and pilot program.

What are the key issues that will be addressed through the pilot program?

The wetland mitigation banking pilot program focuses on essentially two processes. How will mitigation banks be certified, and how will mitigation banks be implemented? (Debiting from banks will occur through existing permitting processes.)

Elements of mitigation banking

Service areas - A service area is loosely defined as "the designated geographic area in which a bank can reasonably be expected to provide appropriate compensation for unavoidable impacts to wetlands." The size of a service area can vary depending upon wetland function being provided, type of damage anticipated to be offset, local and regional conditions, etc.

Determination of credits - Considerations for assessing credit values in a wetland bank include acreage, category type, and/or function.

Release of credits - Guidelines for releasing credits will be developed as part of the certification process. Credit release will be tied to gains in performance such as wetland function.

Use of restoration, creation, enhancement and preservation - The law requires that the certification process prioritize these types of mitigation actions.

Streamlined process - The law requires signatures from both local authorities and Ecology when certifying a mitigation bank proposal. In addition, the U.S. Army Corps of Engineers has permitting authority for the sites that will be affected and, in some cases, the bank sites. The advisory and review team will be looking for ways to streamline the certification process and approvals.

Identification of inappropriate applications - Some wetland functions, such as fish habitat, flood storage and attenuation, are tied to a wetland’s location within the landscape and may not be appropriate for mitigation banking. Guidelines on how to address this concern will need to be developed.

For more information

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Click for a map of banking sites
(Updated 4/2/08)
 

Guidance - Locating
Mitigation Banks Using a Landscape-Based Approach

(5/07, PDF, 1 mb.)


Click for the latest
report to the legislature

(December 2006)