Frequently Asked  Questions About
                 Ecological  Revitalization of Superfund  Sites
   Ecological revitalization
   provides habitat for wildlife and
   is not considered beautification
   or enhancement; therefore it can
   be incorporated  into site
   remediation plans.
                                          Introduction
   Fact Sheets on Ecological
   Revitalization
   •  This fact sheet is the first in a
     series of fact sheets on ecological
     revitalization.
   •  The second fact sheet
     "Revegetation of landfills and
     waste containment areas", EPA
     542-F-06-001, can be found at
     http://cluin.org/ecorevitalization.
   •  Look for our third fact sheet
     "Ecological Revitalization and
     Attractive Nuisance Issues",
     EPA 542-F-06-003.
Damaged  land does not have to be abandoned land.
Ecological revitalization can return damaged land to a
state of health, vitality, and diversity. This fact sheet, the
first in a series on ecological revitalization, addresses many
frequently asked questions about ecological revitalization
and revegetation of Superfund sites.

Through the Superfund, Brownfields, and Federal Facilities
programs, the U.S. Environmental Protection Agency (EPA),
states, tribes, or potentially responsible parties (PRP) clean
up sites that pose real or potential threats to human health
or the environment.  Part of the cleanup process may include
ecological revitalization -  a cost-effective way to  either
create habitat or incorporate it as a natural remediation
technology for  Superfund sites while increasing  the
ecological value of the land. As those responsible for site
cleanups learn more about ecological revitalization,  its use
at Superfund sites increases.   In fact, EPA is  helping
communities reuse cleaned up sites through the Superfund
Redevelopment Initiative (http://www.epa.gov/superfund/
programs/recycle/), and several of those Superfund sites
have a planned recreational end use that will incorporate
ecological revitalization.

The information in this fact sheet  is intended for  EPA site
managers, state agency site managers, consultants, and
others interested in restoring disturbed sites.   Various
information sources used to prepare this fact sheet are listed
at the end.
What is  ecological revitalization?
Ecological revitalization of a Superfund site is the process of returning a site to a functioning and sustainable
use.  Ecological revitalization re-establishes a site to a natural state, thus increasing or improving habitat for
plants and animals without impairing the remediation activities that ensure the protection of human health
and the environment. Although ecological revitalization can be used to create habitat as a specific goal, it
also can be used to complement or enhance a traditional cleanup method; as a green remediation technology
to remove or stabilize contaminants; or reduce erosion while providing valuable wildlife habitat. Ecological
revitalization also can be used adjacent to areas redeveloped for commercial use, such as for riparian zones,
and in conjunction with recreational features such as hiking and biking trails or bird-watching lookout stations.

-------
Selected  Benefits of Ecological Revitalization

• Removes stigma associated with prior waste sites

• Repairs damaged land

• Enhances property values

• Provides recreational uses for local residents

• Improves soil health and supports diverse vegetation

• Creates wildlife habitat

• Contributes to a green corridor

• Can reduce erosion, sequester carbon,
  and control landfill leachate

• Protects surface and groundwater from
  potential contamination
          Why should I consider
          ecological  revitalization?
          What  are the benefits?	

          Ecological revitalization  provides  a
          variety of environmental, economic, and
          public relations benefits. When the end
          use of  a  site is considered, those
          responsible should discuss all  future  use
          alternatives with the community, including
          ecological  revitalization.  The  EPA
          Environmental  Response Team (ERT) can
          assist in  facilitating public outreach.

          Environmental Benefits:

          •  Biodiversity In addition to providing areas
            that are  more aesthetically pleasing than
            mowed  grass or pavement,  ecological
            revitalization provides important habitat that
            attracts  and sustains  wildlife,  such  as
            migratory birds. Areas with a variety of native
            plant species  are less impacted  by disease,
            provide habitat for a variety of wildlife species,
            and may be vital links to other habitat areas
            on critical migration routes.

          •  Contaminant remediation
            Ecological  revitalization  can include
            natural remediation technologies that can
            help   biodegrade  environmental
   contaminants, sequester carbon to make
   it unavailable as a greenhouse gas,
   improve groundwater recharge,  and
   control landfill leachate.

•  Soil stability Ecological revitalization
   provides rooted vegetation to stabilize the
   soil and can reduce the need to excavate
   or import soil. This in turn can limit dust,
   reduce erosion, and slow down and filter
   storm water runoff.

•  Education   Ecological revitalization
   provides educational, interpretive,  and
   stewardship  opportunities for students
   and the local community.

Economic Benefits:

•  Cost Not only is ecological revitalization
   cost-competitive with other remediation
   technologies, but the reduced maintenance
   requirements often  make it less expensive
   than many other end uses. Conservation
   easements, environmental offsets, and an
   increased  tax base can also provide
   additional economic benefits.

•  Aesthetic value Ecological revitalization
   can provide recreational areas that increase
   local property values or provide revenue.
   In  addition,  aesthetically  pleasing
   commercial greenscaping or residential
   areas attract more customers and can be
   marketed to create a competitive advantage.

Public Relations Benefits:

•  Improved   community  image
   Ecologically revitalized sites improve the
   aesthetics of a community and may increase
   recreational use and tourism.

•  Improved agency image  Site owners
   and regulatory agencies may gain an
   enhanced  reputation,  "green"  image,
   external validation,  and sustainable
   operations.

Additional  information on the benefits of
ecological revitalization is available through
the Interstate  Technology and Regulatory
Council (ITRC 2004 and 2006).  See  the
information  resources listed at the end of this
fact sheet.

-------
What types of sites can be
ecologically revitalized?
Are small  or  industrial
sites eligible?	

Ecological revitalization can be implemented
to  some degree at any site; however, the
benefits will  be strongly influenced by the
surrounding area.  Ecological revitalization
can most easily be incorporated for a site
that  is already located within a larger
beneficial habitat or ecosystem.  Sites that
are somewhat isolated,  but are along  a
corridor or riparian or transition  zone and
linked to  more extensive habitat, are also
suitable for  revitalization.   Sites that are
completely  isolated within industrial or
residential  development may  also be
candidates for ecological improvements and
community recreational opportunities.

Small or industrial sites within an  urban or
suburban setting may appear to  contribute
less  to the ecosystem, but they can be
important habitats, reservoirs, or sanctuaries,
and provide excellent opportunities for public
education or recreation. In many cases, these
sites provide valuable opportunities for
restoring  rare or unique habitat types and
provide beneficial recreational assets such
as soccer fields, golf courses, playgrounds,
or parks  with a green element.   In many
situations, ecological revitalization should be
considered as part of a "green landscaping"
approach to site development. These sites
can  provide a sense of  ownership and
opportunities for stewardship among the
residents and public.
Should  I use native vegetation
for ecological  revitalization?

Native  vegetation should be  used for
ecological revitalization whenever possible.
Executive Order  13148 refers  to  a
presidential memorandum  regarding
beneficial  landscape practices on grounds
landscaped with federal dollars (http://
www.epa.gov/greenacres/EO1 3148.pdf).
The  memorandum requires  the  use of
regional native vegetation in landscaping
when possible.  Native vegetation prefers
native  (unfertilized) soils, and  does not
require soil amendments, such  as fertilizer.
Appropriate  site and soil analyses should
be performed during predesign  stages of
the  project. On  many  Superfund sites, the
soil  characteristics are  different  than
characteristics of native soil (for  example,
soil may have a lower pH or higher salt
concentration).  Soil amendments may be
necessary in these cases to remediate
contamination, and certain native vegetation
may not thrive in the resulting environment.
Therefore, it is not always possible to
revegetate a site strictly using regional native
vegetation. A restoration practitioner should
be consulted to  aid in proper  selection of
the vegetation and  to increase the chance
of planting  success. The restoration
practitioner can specify analyses that help
match appropriate species of vegetation with
site and soil conditions. Some minimal care
should    be   incorporated    during
implementation, and a  plan could  be
developed to cover such items as watering
and  any need for  pest control,  including
control of invasive plant species. Longer term
   Site managers should work with the local community when deciding to include
   ecological revitalization as a cleanup component for a site. Active participation by
   the local community enhances the value and acceptance of the final restoration
   effort.  EPS's ERT (http://www.ert.org) can help to foster community partnership by
   outreach, public meetings, and providing technical information.
                                                                                       J


-------
Site Types and Case Studies Related to Ecological Revitalization

• Mining: Cherokee County Galena Subsite (OU5) (native prairie grassland with
  potential for grazing or light industry development) -
  http://www.epa.gov/superfund/programs/recycle/success/casestud/chercsi.htm

• Foundries: Abex Corporation (playground in addition to a fire department and police
  station) - http://www.epa.gov/superfund/programs/recycle/success/briefs

• Manufacturing facilities: Industri-Plex (open space and wetlands preserve in addition to
  expanded roads and retail space) -
  http://www.epa.gov/superfund/programs/recvde/success/case$tud/iplexcsi.htm
• Avtex Fibers: (open space in addition to a recreational park and an eco-business park) -
  http://www.epa.gov/superfund/accomp/success/avtex.htm

• Refineries: Alameda Naval Air Station (golf course and marina) -
  http://www.epa.gov/superfund/programs/recycle/pilot/facts/r9 38.htm

• Landfills:  Lipari Landfill (open space with nature trail in addition to recreational fields,
  a parking lot and recreation building) -
  http://www.epa.gov/superfund/programs/recycle/success/1-pagers/lipari.htm

• Military Installations: Pease Air Force  Base (wildlife refuge in addition to a public airport)-
  http://www.epa.gov/superfund/programs/recycle/success/briefs

• Metal Plating:  Revere Chemical (native wildflower habitat)  -
  http://www.epa.gov/superfund/programs/recycle/success/briefs/pa brief. htm#pa 14

• Tannery:  A.C. Lawrence Leather site in New England  - contact ERT for more information

  For more cases studies, visit the Wildlife Habitat Council website at
  http://www.wildlifehc.org/brownfield restoration/case studies.cfm.
Leadville, CO - Before ecological restoration                     Leadville, CO - After ecological restoration
(Source: Dr. Sally Brown, University of Washington)                (Source: Dr. Sally Brown, University of Washington)

-------
maintenance  options,  if allowed and
appropriate, should also be established for
the site.

Early in the process, site managers should
incorporate funding  in the budget for
implementing  ecological  revitalization.
While native plant seeds can be expensive
and more difficult to sow, the reduced
operation  and maintenance (O&M) costs
make native plants a more economical long-
term option than non-native plants.  Native
plants  can be used to establish  a self-
sustaining ecosystem, usually within 3 to 4
years, if properly selected and planted.


What kind of habitat should
be considered for ecological
revitalization?	

Any site has the potential for ecological
restoration, regardless of its size or location.
While a  variety  of habitats can be
considered for ecological revitalization, the
habitat type in the surrounding area would
likely have the greatest chance of success.
In any  case, site  managers should  always
work with  the community to determine the
preferred beneficial reuse for the site, and
thus habitat type.

Ecological revitalization can be  managed
for a variety of habitats such as meadow,
prairie, riparian buffers and forest, and for
wildlife such as nongame species, birds, and
migratory butterflies. When planning for a
specific   habitat  type,  a  restoration
practitioner  can   provide  valuable
recommendations to maximize a habitat's
potential  for  success.   In  addition to
determining appropriate  species and
management techniques, the restoration
practitioner can provide recommendations
for adding nesting boxes, preserving snags,
considering pollinators, and adding other
habitat features to help attract and sustain
wildlife populations.

Can you effectively predict
and control the type of
vegetation that will  develop
on  a site when applying
ecological  revitalization?

Various types of Superfund  sites, such as
mined areas, hazardous waste spills, and
landfills may require very different treatment
technologies and different approaches to
ecological  revitalization.   Initially,  a
planting will typically consist of a mixture
of seeds or plants, native when  possible,
used to revitalize the habitat. However, the
diversity will change because some plants
will be better adapted to the site-specific
conditions than others. If the vegetation is
not maintained at the same stage as when
it was planted, the plant community  will
naturally progress toward a more  mature
state or climax  community. For example, if
a native grass planting is not mowed in
some regions, shrubs  and trees will
eventually  take root and grassland will
progress toward  woodland.  It is most
West Page Swamp, Bunker Hill, ID-Before ecological restoration
(Source: Dr. Sally Brown, University of Washington)
West Page Swamp, Bunker Hill, ID-After ecological restoration
(Source: Dr. Sally Brown, University of Washington)

-------
important to maintain native  species that
are functional based  on the  surrounding
native vegetation.

At any revitalized site, invasive species should
be controlled to allow native species to become
established.  Invasive  species can quickly
spread and invade disturbed land, especially
in areas that contain bare soil. An invasive
species  management  plan should  be
developed to prescribe methods for effectively
controlling invasive species, such as burning,
where  allowed, or the  use of chemical,
biological, or hand-pulling techniques.
Will implementing an
ecological  revitalization
project  impair site
remediation or
development?	

Site remediation activities are protective of
human health, and ecological revitalization
modifies a site to increase or improve habitat
for plants and animals without impairing site
remediation or development. Furthermore, an
effective revitalization design can (1) reduce
or eliminate exposure through the use of
amendments for capping and soil cover or
(2) reduce the bioavailability of contaminants
through the use of organic amendments.
Ecological   revitalization   measures
incorporated for beneficial end use need to
be planned early to maximize the use of native
vegetation or to focus on opportunities for
passive  recreation  and environmental
education during  site development.   In
addition, an ecological risk assessment should
be completed to ensure that the revitalization
and other cleanup components effectively
protect the environment, thereby improving the
protection of  human health as well.

What is the definition of
"attractive  nuisance"?	

For the  purposes  of the Superfund
Program, an attractive  nuisance is the
potential for wildlife to be harmed from
waste left on a site after a remedial action
has been completed and a revegetation
effort undertaken.  One example  is an
abandoned  mining site that is barren and
void of life.   After lime-treated biosolids
are incorporated to complex  the metals
of concern,  the health of the soil (fertility
and general suitability  to support root
growth)  is   improved   to   permit
revegetation with  native  plants  and
promote  a self-sustaining ecosystem as
habitat for nongame species. Once the
plants are  established, animal life
becomes re-established.  Because the
metals remain in the soil, they could move
through the food chain to adversely affect
raptors at the top of the food chain.  Thus,
because  no  animals were present on the
site prior to  its revitalization, a potential
attractive nuisance is created.

Jasper County, MO - Before ecological restoration
(Source: Dr. Sally Brown, University of Washington)
Jasper County, MO -After ecological restoration
(Source: Dr. Sally Brown, University of Washington)

-------
Will ecological revitalization
at  sites  where waste
remains cause an attractive
nuisance?	

While ecological revitalization improves
habitat for plants and animals, the primary
goal of  remediation is to protect human
health and the environment.  Therefore,  if
the potential for an attractive nuisance exists,
an ecological risk  assessment could be
conducted to demonstrate that contaminants
of concern are not present  or will not
accumulate  to levels that might be toxic to
wildlife attracted by the revitalized habitat.
The risk assessment or a monitoring program
would evaluate  the potential  risks  to the
environment,  and  the remediation and
ecological revitalization would address any
concerns. In addition, when an ecological
revitalization project is implemented, the
protection   of  public  health   may
correspondingly  improve.  The ERT has
conducted various evaluations concerning
attractive nuisance over the past 6 years and
can provide technical support in addressing
this issue at a particular site.   Additional
information  is provided in a separate fact
sheet on ecological  revitalization and
attractive nuisance issues.

Can land application of
biosolids cause
contaminants to enter the
food chain and  result  in
harm?	

Generally no.  Biosolids are applied (with
other soil  amendments) to  sites with
disturbed  soil  as part  of  an in situ
remediation approach or to provide soil
nutrients. These are usually sites with metal-
contaminated soils,  where it is impractical
to extract or remove the contaminants.
Components within biosolids help to
complex certain contaminants, minimizing
or reducing their bioavailability.   Iron,
lignins, and other organic material can bind
contaminants of concern, immobilizing
them  and  rendering them biologically
unavailable.

Specifically, the issue of attractive nuisance
has been  a concern at some  Superfund
remediation sites  involving  biosolids
application. The concern pertained to lead
moving through the vermiform pathway (for
example, earthworms to  shrews to raptors).
Various regulatory agencies have requested
studies to address the potential for
contaminants to move up the food chain
through this pathway.   The contaminants
are still present in the  soil and can  be
extracted  with  strong  acids.  The  key
question is whether the bioavailability has
been reduced to the point where harm or
risk   is  acceptable  under  normal
environmental conditions.  Different studies
have  been conducted to  answer  this
question.  For example,  treated soils have
been  fed  to pigs,  and small mammal
trapping with follow-on  pathology studies
have been  performed. To date, no evidence
suggests that the contaminants are not
adequately complexed.  This reduction in
bioavailability is encouraging, but has not
been evaluated over long periods of time.
EPA is currently working  on a technical
performance measures (TPM)  paper to
address the types of tests that should  be
applied to monitor and evaluate the efficacy
and safety of applying biosolids during
remediation efforts.

Some examples of Superfund sites that used
biosolids during restoration include Bunker
Hill in Idaho; California Gulch in Leadville,
Colorado; and the Jasper County Site in
Joplin, Missouri.
   For additional information on land application of biosolids and compost, go to
   http://www.epa.gov/compost and http://www.epa.gov/own/mtb/biosolids/.
                                        7


-------
     How does wetland
     mitigation compare to
     ecological revitalization?

     Wetland  mitigation involves creating new
     wetland habitat to compensate for impacts
     to existing wetlands. Ecological revitalization
     can be considered part of wetland mitigation
     depending  on the  site-specific habitat.
     However, if the wetland mitigation is part of
     a contaminant treatment system, it cannot
     be   considered part  of  ecological
     revitalization.  Such  a wetland could be a
     cost-effective alternative  to conventional
     technology, such as groundwater pump and
     treat. For example, at the Silver Bow Creek/
     Warm Springs Ponds  Superfund site in
     Montana, the PRP  decided to fund the
     revitalization of a copper mining area after
     cleanup activities were completed; the effort
     included  creating 400  acres of wetlands
     (http://www.epa.gov/superfund/programs/
     recycle/success/1-pagers/bowcrk. htm).


For additional information on wetland
mitigation requirements, go to
http://www.epa.gov/wetlandsmitigation/.
Mitigation ratios vary depending on the type
and quality of the wetland that will be lost
and the predicted time until functions are
revitalized at the  mitigation wetland.  Even
impacts to man-made wetlands can require
mitigation because  the characteristics and
functional value of a wetland - and not the
origin - are the primary factors in determining
whether mitigation  is required.  Treatment
wetlands constructed to remove contamination
from surface water or leachate do not meet
mitigation requirements, primarily because of
their structure and function. Properly designed
treatment wetlands need to be densely planted
with an aggressive plant species to minimize
exposure to contaminants that may collect in
the sediment.   These wetlands  are not
designed to attract wildlife or replicate the
habitat and functional values of wetlands.
If plants are introduced for
phytoremediation, does that
qualify as  revitalization?

In some cases, phytoremediation can be a
cost-effective alternative for surface soil or
water treatment and can  help  revitalize
species diversity through habitat creation or
expansion. Phytoremediation encompasses
a broad range of designs.  Some designs
rely on plantation-style grids of non-native
species that have negligible ecological value
or use mass plantings of hyperaccumulating
species that are harvested and disposed of
off site; however, these crop systems do not
constitute ecological revitalization.  Other
phytoremediation approaches use a mix of
plant  species  to  provide  long-term
revitalization, reduce bioavailability,  and
provide valuable habitat. These approaches,
when designed to maximize ecological value,
would be considered ecological revitalization
or revegetation using native species.

Native plantings planned for early  in the
design  process are  a  cost-effective
consideration.  However, cost savings
realized through phytoremediation are site-
specific and depend on  the techniques
applied. Savings can include the difference
between soil removal and disposal versus the
cost of the plants and the labor for planting.
Savings could be achieved for groundwater
contamination by replacing pump-and-treat
technology required  over many years with
deep-rooted plants that extract water  and
transpire volatile contaminants.
                                                For additional information on
                                                phytoremediation, go to
                                                http:// www.itrcweb.org/
                                                Documents/PHYTO-2ExecSum.pdf or
                                                http://www.cluin.org/techfocus and
                                                choose phytoremediation.

-------
Do caps or soil covers over
residual contamination have
to be  planted with fescue or
is ecological revitalization
appropriate?	

Ecological revitalization  is appropriate at
these sites. Many caps and soil covers have
been planted with fescue  because it is easy
to establish. In addition, some site managers
are concerned that native plantings are more
expensive and that the deeper roots of native
species might compromise the cap.

Although caps planted with fescue are easy
to establish,  they do not provide  useful
habitat and require routine maintenance,
which increases long-term O&M costs.  The
native seeds and plants themselves are more
expensive than lawn grass seed  mixes;
however, O&M costs over many years are
significantly  lower for  native plantings
because  of  their  hardiness to  poor
conditions, longevity,  and self-seeding
potential.   Ecological revitalization that
incorporates mixed native plant species also
provides beneficial wildlife habitat.

If a cap is properly designed, roots of native
species will not compromise the cap. Root
growth depends on the soil characteristics,
and the presence  of  a clay liner or
geomembrane influences their growth.
Research at the Brookfield Sanitary Landfill
in New  York showed that roots, including
taproots, grow laterally once they reach the
clay cap.   No significant damage  to the
clay cap was observed as a result (Robinson
and Handel  1995).   For  additional
information, please  see  the fact sheet on
   Ecologically revitalized areas
   are not necessarily off limits to
   the public. Recreational uses
   such as trails, athletic fields, and
   wildlife mixed use are
   compatible with ecological
   revitalization and revegetation
   using native species. In fact,
   kiosks and public viewing areas
   often can be included in
   ecological revitalization plans.
revegetating landfills and waste containment
areas (EPA 542-F-06-002, http://
www.cluin.org/ecorevitalization)  and
review the  references by Steven Handel
listed at the end of this fact sheet.

Caps or  soil covers  that already have
established fescue can  be converted to
native plants.  An  effective conversion
method is to  burn the existing fescue,  if
possible,  and follow up with applications
of a broad spectrum herbicide registered
for the establishment of native warm season
grasses and forbs.  As the native grasses
and forbs  are establishing,  follow-up
herbicide treatments  may be necessary to
control the  fescue.   While areas can be
converted from fescue  to native  plants, the
conversion must be carefully planned and
should be  conducted by a restoration
practitioner to increase the likelihood
of success.

   A separate fact sheet on revegetation of landfills and waste containment areas
   will provide additional information (http://www.cluin.org/ecorevitalization).


-------
What  maintenance and
repair activities  should
I  expect when
supporting  ecological
revitalization?	

All cover-type remedies  require some level
of maintenance.  O&M  costs will be lower
for ecological revitalization because, while
there is some cost for weed control, there is
minimal to no cost for mowing.


• Short-term requirements  When
  plants are establishing on  the site,
  short-term monitoring and maintenance
  will consist primarily of weed control
  and irrigation,  when  necessary  and
  possible, and reseeding to ensure the
  health of the native pfants.  Various
  methods can be used to control weeds,
  including  mowing,  hand  pulling,
  prescribed burning, or use of EPA-
  registered  pesticides;  the most
  appropriate method depends on the
  final  use of the  site. An  invasive
  species  management  plan   that
  specifies short- and long-term activities
  should  be developed early  in the
  process by a restoration practitioner.
  If necessary in the management plan,
  guidelines for mowing to control weeds
  will  need  to  be  developed  and
  followed, particularly because forbs
  and young trees will be eliminated if
  they are  inadvertently mowed.

• Long-term requirements Long-term
  maintenance activities vary depending on
  the site.  Some sites  do not require any
  long-term maintenance because the
  native plants create a self-sustaining
  habitat. If the goal is  to create a specific
  setting to attract a  particular type of
  wildlife,  such as butterflies, then  tree
   removal and occasional mowing might
   be necessary.  In general, long-term
   maintenance depends on the long-term
   objective of  the site and shoufd be
   determined by a restoration practitioner.
   If the objective requires intervention with
   the natural progression of the site,  then
   some minimal long-term maintenance
   would be required.

Considering that native
species typically take longer
to become fully established
(as  compared to commercial
erosion control seed mixes),
how do I provide for
appropriate vegetative
cover during the
establishment  period?	

Various agencies and organizations, including
the Natural Resources Conservation Service
(http: //www.nrcs. usda.gov/), state
native plant  societies  (such  as in
California  [http://www.cnps.org]   and
Texas [http://www.npsot.org/]). or local
Soil   Conservation  Service   centers
(http://offices.sc.egov.usda.gov/locator/app),
can identify the best planting time for specific
areas and species and can provide additional
information to ensure appropriate vegetative
cover during the establishment period. Some
simple treatment might be required to improve
the survival of planted species,  such as soil
surface cultivation and the use of nurse species
(for example, sterile rye grass or non-sterile
legumes). A fast-growing sterile nurse species
grows quickly and then dies, providing soil
protection and increased  nutrients.  Sterile
annual rye grasses that germinate and grow
quickly are often added to native seed mixes
    For additional information on monitoring and evaluation of a revitalized site,
    go to http://www.ser.org/content ecological revitalization primer.asp#8.
                                10

-------
to control erosion. In addition, fast-growing
shrubs can be planted to stabilize stream
banks, allowing time for slower-growing trees
to mature and overtop the  shrubs.  Small
groups  of trees can  be planted over  a
remediated area to attract birds and other
animals that will naturally disperse seeds and
expand the forested area over time.

Ecological revitalization  is considered
accomplished once a revitalization practitioner
is no longer  needed  to ensure long-term
sustainability of the ecosystem (typically after
3  to 5  years).   However, long-term
management  may be required to prevent
recurrent  degradation of  revitalized
ecosystems. For  trees and shrubs, contracts
often require 90 percent survival after the first
year of  planting.  Reseeding of bare spots
and poor growth  areas is often necessary for
grasses and herbaceous plants.
Who is financially
responsible for ecological
revitalization, and are there
any legal requirements?	

The  financial  responsibility and  legal
requirements associated with ecological
revitalization of a Superfund site are site-specific.
Although  EPA strives to get PRPs to  fund the
cleanup of a Superfund site, Superfund money
can be used for the cleanup if the PRP cannot
be found, is not viable, or refuses to cooperate.
Whether a site is funded  by the PRP or with
Superfund money, ecological  revitalization
activities can be incorporated into the site reuse
plan  because  they are not considered
beautification or enhancement. Such activities
are considered beneficial reuse and fall within
EPA's policies, initiatives, and priorities.

The cost of native seeds can be high, so it is
important to decide on the use of native plants
early in the process and  incorporate the
associated costs into the remediation budget.
When incorporating beneficial reuse into the
site plan and remediation budget, one  rule
of thumb is to budget 5 to 10 percent of the
remediation  budget for beneficial reuse.  For a
removal  site, ecological revitalization can  be
included in the action memorandum; for a remedial
site, it can be included in the record of decision. If
an ecological revitalization component is included
in the selected  remedy,  completion  of the
revitalization can be required in a consent decree.
If revitalization is not included in the site reuse plan,
site managers can work with PRPs to explain the
benefits  of  ecological reuse and  encourage
voluntary revitalization  activities.   However,
unwilling PRPs cannot be  forced to complete
revitalization activities if those activities are not
included  in the site reuse plan.

Additional Information
and Resources	

  Handel, S.N.etal. 1994.
  "Biodiversity Resources for Restoration Ecology."
  Restoration Ecology.
  Volume 2, Number 4.  Pages 230 through 241.

  Interdisciplinary Training  for Ecosystem
  Restoration.
  On-Line Address:
  http://www.epa.gov/owow/watershed/
  wacademy/training/bkley6.html

  Internet Seminars on Ecological Restoration.
  On-Line Address:
  http://www.clu-in.org/studio/seminar.cfm

  ITRC.  Planning and Promoting Ecological Land
  Reuse at Remediated Sites. 2006.
  On-Line Address:
  http://www.itrcweb.org

  Plant Conservation Alliance.
  On-Line Address:
  http://www.nps.gov/plants

  Robinson, G.R., and S.N.  Handel.  1993.
  "Forest Restoration on a Closed  Landfill:
  Rapid Addition of New Species by Bird
  Dispersal."
  Conservation Biology.  Volume 7, Number 2.
  Pages 271 through 278.
                                         11

-------
         Robinson, G.R., and S.N. Handel. 1995.
         "Woody Plant Roots Fail to Penetrate a
         Clay-Lined Landfill: Management
         Implications."  Environmental Management.
         Volume 19,  Number 1.
         Pages 57 through 64.

         Society for Ecological Restoration (SER)
         International: Guidelines for Developing
         and Managing Ecological Restoration
         Projects, 2nd Edition. Andre Clewell, John
         Rieger, and John Munro.
         December 2005.
         On-Line Address: http://www.ser.org

         U.S. EPA Revegatation of Landfills and
         Waste Contaminant Areas  Fact Sheet"
         EPA 542 F-06-001.
         On-Line Address:
         http://www.cluin.org/ecorevitalization

         U.S. EPA. Green Landscaping with
         Native Plants: Greenacres.
         On-Line Address:
         http://www.epa.gov/greenacres/

         U.S. EPA Greenscape Program.
         On-Line Address:
         http://www.epa.gov/greenscapes/

         U.S. EPA.  An Introduction and User's
         Guide to Wetland Restoration, Creation,
         and Enhancement.
         On-Line Address: http://www.epa.gov/
         owow/wetlands/pdf/restdocfinal.pdf

         U.S. EPA Land Revitalization Offices
         and Programs.
         On-Line Address:
         http: //www.epa .gov/swerrims/
         landrevitalization/index.htm
                 U.S. EPA National Association of Remedial
                 Project Managers (NARPM) Training
                 Conference.
                 On-Line Address:
                 http://www.epa narpm .org

                 U.S. EPA Reusing Cleaned Up Superfund
                 Sites: Golf Facilities Where Waste is Left On
                 Site.
                 On-Line Address:
                 http://www.epa.gov/superfund/programs/
                 recycle/pdfs/golf-1031 03-c.pdf

                 U.S. Department of Agriculture, Natural
                 Resource Conservation Service.
                 On-Line Address: http://soils.usda.gov/
                 survey/printed surveys/

                 U.S. EPA Superfund  Redevelopment Program.
                 On-Line Address: http://www.epa.gov/
                 superfund/programs/recycle/index.htm

                 Wildlife Habitat Council.
                 On-Line Address: http://wildlifehc/org


               Acknowledgment	

                 Photographs used in this  fact sheet were
                 reproduced with permission from Dr. Sally
                 Brown,  Research Associate Professor,
                 University of Washington.


               Contact Us	

                 If you have any questions or comments on
                 this fact sheet, or suggestions for future fact
                 sheets, please contact:

                 Ellen Rubin
                 (703) 603-0141
                 rubin.ellen@epa.gov

                 Scott Fredricks
                 (703) 603-8771
                 fredricks.scott@epa.gov
Office of Superfund Remediation
and Technology Innovation
(5102P)
EPA542-F-06-002
December 2006
www.epa.gov
                                               12

-------