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Pursuant to Section 404 of the Clean Water Act (33 U.S. Code 1344)

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Pursuant to Section 404 of the Clean Water Act (33 U.S. Code 1344), notice is hereby given that Streamworks Mitigation Services, LLC, P.O. Box 23612, Little Rock, Arkansas 72221, has submitted their Illinois River Mitigation Bank prospectus. The prospectus outlines the proposal for developing and operating the bank which is known as the banking instrument. After public comments are received and any issues resolved on the prospectus, Streamworks Mitigation Services (Streamworks) will submit a draft banking instrument to the District Engineer of the Little Rock District. The District Engineer will then distribute the draft banking instrument to the Interagency Review Team (IRT), which is made up of the Corps and the pertinent state and Federal resource agencies. The IRT will review the banking instrument and coordinate with Streamworks on any issues until a final banking instrument is completed. Finally, the District Engineer will review the final instrument and make a decision to approve or not approve.

TO WHOM IT MAY CONCERN: Comments are invited on the work described below. Please see the Public Involvement section for details on submitting comments. Point of Contact. If additional information is desired, please contact the project manager, Lisa Boyle, telephone number: (501) 324-5295, mailing address: Little Rock District Corps of Engineers, Regulatory Division, P.O. Box 867, Little Rock, Arkansas 72203‑0867, email address: Lisa.A.Boyle@usace.army.mil. An electronic copy of the Illinois River Mitigation Bank prospectus can be viewed on the Little Rock District homepage athttp://www.swl.usace. army.mil/Missions/Regulatory/PublicNotices.aspx or a hard copy can be obtained from the Corps of Engineers through the contact information listed above. Project Information. Pursuant to Section 404 of the Clean Water Act (33 U.S. Code 1344), notice is hereby given that Streamworks Mitigation Services, LLC P.O. Box 23612 Little Rock, Arkansas 72221 has submitted their Illinois River Mitigation Bank prospectus. The prospectus outlines the proposal for developing and operating the bank which is known as the banking instrument. After public comments are received and any issues resolved on the prospectus, Streamworks Mitigation Services (Streamworks) will submit a draft banking instrument to the District Engineer of the Little Rock District. The District Engineer will then distribute the draft banking instrument to the Interagency Review Team (IRT), which is made up of the Corps and the pertinent state and Federal resource agencies. The IRT will review the banking instrument and coordinate with Streamworks on any issues until a final banking instrument is completed. Finally, the District Engineer will review the final instrument and make a decision to approve or not approve. The primary purpose of this bank is to mitigate for unavoidable impacts to streams and wetlands authorized under Section 404 of the Clean Water Act. The project goal is to restore streams and wetlands, and to create new wetland habitat. The proposed project is located in the Illinois River and associated tributaries and wetlands, in section 2, T. 16 N., R. 32 W., and extending into section 36, T. 17 N., R. 32 W., west of Fayetteville, Washington County, Arkansas. The site is approximately 96 acres in size and is currently a pasture. The site was historically altered for agricultural uses, primarily for hay production. Stream channel segments have been ditched, filled, or manipulated. Riparian vegetation has also been treated to prevent river cane from encroaching on the pastureland. Streamworks has preliminarily identified approximately 2,500 linear feet of perennial stream, 6,303 linear feet of ephemeral or intermittent tributaries, and 10 acres of wetlands on the property. Streamworks proposes to perform bank stabilization along the Illinois River and reconstruct the tributaries to exhibit historical planform features. Wetland areas will be restored and enhanced. The entire site will be revegetated with native hardwood and herbaceous species. The site would be monitored for a minimum of five years to ensure hydrologic and revegetation success, and would be perpetually preserved. The proposed bank site lies within the Illinois River 8-digit (11110103) hydrologic unit code (HUC) as designated by the U.S. Geologic Survey. Streamworks proposes that the primary geographic service area for the bank include the portions of the Illinois River, Lower Neosho (11070209), Lake O’ The Cherokees (11070206), Elk (11070208), and Robert S. Kerr Reservoir (11110104) HUCs that are within Arkansas. The proposed secondary service area includes the portions of the Frog-Mulberry (11110201) and Dardanelle Reservoir (11110202) HUCs that are within the Boston Mountains ecoregion. The IRT reviewed the draft prospectus and inspected the site in June 2013. They agreed that the site was an acceptable area for development of a bank and offered preliminary comments. The location and general plan for the proposed work are shown on the enclosed sheets. Water Quality Certification. By copy of this public notice, the applicant is requesting water quality certification from the Arkansas Department of Environmental Quality (ADEQ) in accordance with Section 401(a)(1) of the Clean Water Act. Upon completion of the comment period and a public hearing, if held, a determination relative to water quality certification will be made. Evidence of this water quality certification or waiver of the right to certify must be submitted prior to the issuance of a Corps of Engineers permit. Cultural Resources. A Corps staff archeologist will review topographic maps, the National Register of Historic Places, and other data on reported sites in the area. The District Engineer invites responses to this public notice from Native American Nations or tribal governments; Federal, State, and local agencies; historical and archeological societies; and other parties likely to have knowledge of or concerns with historic properties in the area. This public notice initiates consultation under Section 106 of the National Historic Preservation Act with any Tribe that has information or concerns with historic properties in the proposed permit area. Endangered Species. Our preliminary determination is that the proposed activity will not affect listed Endangered Species or their critical habitat. A copy of this notice is being furnished to the U.S. Fish and Wildlife Service and appropriate state agencies and constitutes a request to those agencies for information on whether any listed or proposed‑to‑be‑listed endangered or threatened species may be present in the area which would be affected by the proposed activity. Flood Plain. We are providing copies of this notice to appropriate flood plain officials in accordance with 44 CFR Part 60 (Flood Plain Management Regulations Criteria for Land Management and Use) and Executive Order 11988 on Flood Plain Management. Section 404(b)(1) Guidelines. The evaluation of activities to be authorized under this permit which involves the discharge of dredged or fill material will include application of guidelines promulgated by the Administrator, Environmental Protection Agency, under authority of Section 404(b) of the Clean Water Act. These guidelines are contained in 40 Code of Federal Regulations (CFR) 230. Public Involvement. Any interested party is invited to submit to the above-listed POC written comments or objections relative to the proposed work on or before September 9, 2013. Substantive comments, both favorable and unfavorable, will be accepted and made a part of the record and will receive full consideration in determining whether this work would be in the public interest. The decision whether to issue a permit will be based on an evaluation of the probable impact including cumulative impacts of the proposed activity on the public interest. That decision will reflect the national concern for both protection and utilization of important resources. The benefit which reasonably may be expected to accrue from the proposal must be balanced against its reasonably foreseeable detriments. All factors which may be relevant to the proposal will be considered including the cumulative effects thereof; among those are conservation, economics, aesthetics, general environmental concerns, wetlands, historic properties, fish and wildlife values, flood hazards, flood plain values, land use, navigation, shoreline erosion and accretion, recreation, water supply and conservation, water quality, energy needs, safety, food and fiber production, mineral needs, considerations of property ownership and, in general, the needs and welfare of the people. The Corps of Engineers is soliciting comments from the public; Federal, state, and local agencies and officials; Indian Tribes; and other interested parties in order to consider and evaluate the impacts of this proposed activity. Any comments received will be considered by the Corps of Engineers to determine whether to issue, modify, condition or deny a permit for this proposal. To make this decision, comments are used to assess impacts on endangered species, historic properties, water quality, general environmental effects, and the other public interest factors listed above. Comments are used in the preparation of an Environmental Assessment and/or an Environmental Impact Statement pursuant to the National Environmental Policy Act. Comments are also used to determine the need for a public hearing and to determine the overall public interest of the proposed activity. Any person may request in writing within the comment period specified in this notice that a public hearing be held to consider this application. Requests for public hearings shall state, with particularity, the reasons for holding a public hearing. The District Engineer will determine if the issues raised are substantial and whether a hearing is needed for making a decision. NOTE: The mailing list for this Public Notice is arranged by state and county(s) where the project is located, and also includes any addressees who have asked to receive copies of all public notices. Please discard notices that are not of interest to you. If you have no need for any of these notices, please advise us so that your name can be removed from the mailing list. Enclosures Approximate Coordinates of Project Center Latitude: 36.09439°N Longitude: -94.34323°W UTM Zone: 15 North: 3995253 East: 379079

JOINT PUBLIC NOTICE CORPS OF ENGINEERS ­ STATE OF ARKANSAS

US ARMY Corps Of Engineers® Little Rock District

Application Number: 2013-00171 Date: August 9, 2013 Comments Due: September 9, 2013

TO WHOM IT MAY CONCERN: Comments are invited on the work described below. Please see the Public Involvement section for details on submitting comments. Point of Contact. If additional information is desired, please contact the project manager, Lisa Boyle, telephone number: (501) 324-5295, mailing address: Little Rock District Corps of Engineers, Regulatory Division, P.O. Box 867, Little Rock, Arkansas 72203-0867, email address: Lisa.A.Boyle@usace.army.mil. An electronic copy of the Illinois River Mitigation Bank prospectus can be viewed on the Little Rock District homepage at http://www.swl.usace. army.mil/Missions/Regulatory/PublicNotices.aspx or a hard copy can be obtained from the Corps of Engineers through the contact information listed above. Project Information. Pursuant to Section 404 of the Clean Water Act (33 U.S. Code 1344), notice is hereby given that Streamworks Mitigation Services, LLC P.O. Box 23612 Little Rock, Arkansas 72221 has submitted their Illinois River Mitigation Bank prospectus. The prospectus outlines the proposal for developing and operating the bank which is known as the banking instrument. After public comments are received and any issues resolved on the prospectus, Streamworks Mitigation Services (Streamworks) will submit a draft banking instrument to the District Engineer of the Little Rock District. The District Engineer will then distribute the draft banking instrument to the Interagency Review Team (IRT), which is made up of the Corps and the pertinent state and Federal resource agencies. The IRT will review the banking instrument and coordinate with Streamworks on any issues until a final banking instrument is completed. Finally, the District Engineer will review the final instrument and make a decision to approve or not approve. The primary purpose of this bank is to mitigate for unavoidable impacts to streams and wetlands authorized under Section 404 of the Clean Water Act. The project goal is to restore streams and wetlands, and to create new wetland habitat. The proposed project is located in the Illinois River and associated tributaries and wetlands, in section 2, T. 16 N., R. 32 W., and extending into section 36, T. 17 N., R. 32 W., west of Fayetteville, Washington County, Arkansas. The site is approximately 96 acres in size and is currently a pasture. The site was historically altered for agricultural uses, primarily for hay production. Stream channel segments have been ditched, filled, or manipulated. Riparian

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vegetation has also been treated to prevent river cane from encroaching on the pastureland. Streamworks has preliminarily identified approximately 2,500 linear feet of perennial stream, 6,303 linear feet of ephemeral or intermittent tributaries, and 10 acres of wetlands on the property. Streamworks proposes to perform bank stabilization along the Illinois River and reconstruct the tributaries to exhibit historical planform features. Wetland areas will be restored and enhanced. The entire site will be revegetated with native hardwood and herbaceous species. The site would be monitored for a minimum of five years to ensure hydrologic and revegetation success, and would be perpetually preserved. The proposed bank site lies within the Illinois River 8-digit (11110103) hydrologic unit code (HUC) as designated by the U.S. Geologic Survey. Streamworks proposes that the primary geographic service area for the bank include the portions of the Illinois River, Lower Neosho (11070209), Lake O' The Cherokees (11070206), Elk (11070208), and Robert S. Kerr Reservoir (11110104) HUCs that are within Arkansas. The proposed secondary service area includes the portions of the Frog-Mulberry (11110201) and Dardanelle Reservoir (11110202) HUCs that are within the Boston Mountains ecoregion. The IRT reviewed the draft prospectus and inspected the site in June 2013. They agreed that the site was an acceptable area for development of a bank and offered preliminary comments. The location and general plan for the proposed work are shown on the enclosed sheets. Water Quality Certification. By copy of this public notice, the applicant is requesting water quality certification from the Arkansas Department of Environmental Quality (ADEQ) in accordance with Section 401(a)(1) of the Clean Water Act. Upon completion of the comment period and a public hearing, if held, a determination relative to water quality certification will be made. Evidence of this water quality certification or waiver of the right to certify must be submitted prior to the issuance of a Corps of Engineers permit. Cultural Resources. A Corps staff archeologist will review topographic maps, the National Register of Historic Places, and other data on reported sites in the area. The District Engineer invites responses to this public notice from Native American Nations or tribal governments; Federal, State, and local agencies; historical and archeological societies; and other parties likely to have knowledge of or concerns with historic properties in the area. This public notice initiates consultation under Section 106 of the National Historic Preservation Act with any Tribe that has information or concerns with historic properties in the proposed permit area. Endangered Species. Our preliminary determination is that the proposed activity will not affect listed Endangered Species or their critical habitat. A copy of this notice is being furnished to the U.S. Fish and Wildlife Service and appropriate state agencies and constitutes a request to those agencies for information on whether any listed or proposed-to-be-listed endangered or threatened species may be present in the area which would be affected by the proposed activity.

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Flood Plain. We are providing copies of this notice to appropriate flood plain officials in accordance with 44 CFR Part 60 (Flood Plain Management Regulations Criteria for Land Management and Use) and Executive Order 11988 on Flood Plain Management. Section 404(b)(1) Guidelines. The evaluation of activities to be authorized under this permit which involves the discharge of dredged or fill material will include application of guidelines promulgated by the Administrator, Environmental Protection Agency, under authority of Section 404(b) of the Clean Water Act. These guidelines are contained in 40 Code of Federal Regulations (CFR) 230. Public Involvement. Any interested party is invited to submit to the above-listed POC written comments or objections relative to the proposed work on or before September 9, 2013. Substantive comments, both favorable and unfavorable, will be accepted and made a part of the record and will receive full consideration in determining whether this work would be in the public interest. The decision whether to issue a permit will be based on an evaluation of the probable impact including cumulative impacts of the proposed activity on the public interest. That decision will reflect the national concern for both protection and utilization of important resources. The benefit which reasonably may be expected to accrue from the proposal must be balanced against its reasonably foreseeable detriments. All factors which may be relevant to the proposal will be considered including the cumulative effects thereof; among those are conservation, economics, aesthetics, general environmental concerns, wetlands, historic properties, fish and wildlife values, flood hazards, flood plain values, land use, navigation, shoreline erosion and accretion, recreation, water supply and conservation, water quality, energy needs, safety, food and fiber production, mineral needs, considerations of property ownership and, in general, the needs and welfare of the people. The Corps of Engineers is soliciting comments from the public; Federal, state, and local agencies and officials; Indian Tribes; and other interested parties in order to consider and evaluate the impacts of this proposed activity. Any comments received will be considered by the Corps of Engineers to determine whether to issue, modify, condition or deny a permit for this proposal. To make this decision, comments are used to assess impacts on endangered species, historic properties, water quality, general environmental effects, and the other public interest factors listed above. Comments are used in the preparation of an Environmental Assessment and/or an Environmental Impact Statement pursuant to the National Environmental Policy Act. Comments are also used to determine the need for a public hearing and to determine the overall public interest of the proposed activity. Any person may request in writing within the comment period specified in this notice that a public hearing be held to consider this application. Requests for public hearings shall state, with particularity, the reasons for holding a public hearing. The District Engineer will determine if the issues raised are substantial and whether a hearing is needed for making a decision. NOTE: The mailing list for this Public Notice is arranged by state and county(s) where the project is located, and also includes any addressees who have asked to receive copies of all public notices. Please discard notices that are not of interest to you. If you have no need for any of these notices, please advise us so that your name can be removed from the mailing list.

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Enclosures

Approximate Coordinates of Project Center Latitude: 36.09439°N UTM Zone: 15

Longitude: -94.34323°W

North: 3995253

East: 379079

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Figure 1: Vicinity Map for the Illinois River Mitigation Bank

ACTION NO. 2013-00171 Streamworks Mitigation Srvs., LLC Illinois River Mitigation Bank ILLINOIS RIVER. August 2013 Sheet 1 of 6

Figure 2: Topographic Map for the proposed Illinois River Mitigation Bank (USGS 24K)

ACTION NO. 2013-00171 Streamworks Mitigation Srvs., LLC Illinois River Mitigation Bank ILLINOIS RIVER. August 2013 Sheet 2 of 6

Figure 3: Soils map of the proposed Illinois River Mitigation Bank. Ra=Razort silt loam (occasionally flooded), Sn= Sloan silt loam, CaC=Captina silt loam(3-6%slope), CaB=Captina silt loam (1-3% slope) GuC= Guin very gravelly silt loam Rg = Razort gravelly silt loam

ACTION NO. 2013-00171 Streamworks Mitigation Srvs., LLC Illinois River Mitigation Bank ILLINOIS RIVER. August 2013 Sheet 3 of 6

Figure 4: Aerial map of existing conditions of the proposed Illinois River Mitigation Bank

ACTION NO. 2013-00171 Streamworks Mitigation Srvs., LLC Illinois River Mitigation Bank ILLINOIS RIVER. August 2013 Sheet 4 of 6

Figure 5: Aerial map of the conceptual planform of the proposed Illinois River Mitigation Bank

ACTION NO. 2013-00171 Streamworks Mitigation Srvs., LLC Illinois River Mitigation Bank ILLINOIS RIVER. August 2013 Sheet 5 of 6

Figure 6: Primary and secondary service areas for the proposed Illinois River Mitigation Bank

ACTION NO. 2013-00171 Streamworks Mitigation Srvs., LLC Illinois River Mitigation Bank ILLINOIS RIVER. August 2013 Sheet 6 of 6

Illinois River Mitigation Bank Prospectus

TABLE OF CONTENTS INTRODUCTION

1

1.0 Objective 2.0 Site Selection and Justification 3.0 Site Protection Instrument 4.0 Baseline Information 5.0 Determination of Credits 6.0 Mitigation Work Plan 7.0 Operation and Maintenance Plan 8.0 Performance Standards 9.0 Monitoring Requirements 10.0 Long-term Management 11.0 Adaptive Management 12.0 Financial Assurances

1 2 2 3 3 4 5 5 5 5 5 6

LIST OF TABLES Table 1: Summary of background information of the Illinois River Mitigation Bank 1 Table 2: List of species of concern located in the Illinois watershed of Washington County, AR 2 APPENDIX A: Figures Figure 1: Vicinity Map for the proposed Illinois River Mitigation Bank Figure 2: Topographic map of the proposed Illinois River Mitigation Bank (USGS) Figure 3: Soils map of the proposed Illinois River Bank Figure 4: Aerial map of the existing conditions of the proposed Illinois River Mitigation Bank Figure 5: Aerial map of the conceptual planform of the proposed Illinois River Mitigation Bank Figure 6: Primary and secondary service areas for the proposed Illinois River Mitigation Bank Figure 7: Archaeological sites identified within the project area APPENDIX B: Site photographs

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DRAFT Illinois River Mitigation Bank Prospectus

Introduction The proposed Illinois River Mitigation Bank is a commercial bank located in the Illinois watershed and will be developed to be used as compensatory mitigation for unavoidable impacts authorized under Section 404 of the Clean Water Act. This combined wetland and stream mitigation project is located within 96acres in Section 02, Township 16N, Range 32W of Washington County, Arkansas, west of Fayetteville along Viney Grove Road (Figure A-1). The project will restore, enhance, or protect 2,530 LF linear feet (LF) of the Illinois River and 6,303 LF of tributaries, and approximately 10-acres of wetlands under the guidance of the Compensatory Mitigation for Losses of Aquatic Resources, Final Rule. Regulation 40CFR Part 230 (USACE & USEPA 2008). Interagency Review Team participation will include: the U.S. Fish and Wildlife Service, Region IV (FWS); the U.S. Environmental Protection Agency, Region VI (EPA); the Arkansas Department of Environmental Quality (ADEQ); the Arkansas Game and Fish Commission (AGFC); the Arkansas Natural Heritage Commission (ANHC); and the Arkansas Natural Resources Commission (ANRC), Arkansas Parks and Tourism (APT). Table 1: Summary of background information of the proposed Illinois River Mitigation Bank BACKGROUND INFORMATION

Project Name Project Sponsor Site Location County 8-digit HUC 10-digit HUC 12-digit HUC

Proposed Primary Service Area ( *Arkansas only )

Illinois River Mitigation Bank Streamworks Mitigation Services, LLC Section 02, Township 16N, Range 32W Washington Illinois 11110103 Headwaters Illinois River 1111010301 Lake Wedington-Illinois River 111101030103 Illinois 11110103 Elk 11070208 Lower Neosho 11010209 Lake O' The Cherokees 11070206 Robert S. Kerr Reservoir 11110104

Proposed Secondary Service Area (*Boston Mountain ecoregion, Arkansas, only )

Frog_Mulberry 11110201 Dardanelle Reservoir 11110202

Protection Mechanism Monitoring Frequency Anticipated Date of Final Monitoring

Conservation Easement annually 2018 ~95.8 acres/8,662 LF of streams ~25-acres of wetlands To establish a consolidated mitigation area in association with the granting of Department of the Army permits through restoration and enhancement of a 8,662 LF of streams, 10acres of wetlands, and associated riparian buffer zones.

Size of Mitigation Area

Mitigation Objectives

1.0 Objective The project objective is to develop a mitigation bank in the Illinois watershed in association with the granting of Department of Army permits through restoration, enhancement, and preservation of stream channels, wetlands, and associated buffers along Illinois River. The project goal is to restore

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DRAFT Illinois River Mitigation Bank Prospectus

the perennial, intermittent, and ephemeral streams and to restore and create wetland habitat. The specific design objectives of the project include: · Restoration or enhancement of channel dimension, pattern and profile; · Water quality enhancement in the Illinois watershed through sediment reduction, nutrient removal, streambank stability, and erosion control; · Water quantity improvement through water storage and flood control, improved ground water recharge, and improved and restored hydrologic connections; · Enhancement of aquatic and terrestrial habitats through improved substrate and instream cover, addition of woody debris, reduction in water temperature due to shading, restoration of terrestrial habitat, increase of spatial extent of natural area, and improved aesthetics. 2.0 Site Selection and Justification The proposed Illinois River Mitigation bank is a 95.8-acre site located along the Illinois River approximately 2,600 ft east of the Lake Wedington Cooperative Wildlife Management Area (WMA). The Lake Wedington WMA is a 16,000 acre unit of the Ozark National Forest Boston Mountain Ranger District established in cooperation with the Arkansas Game and Fish Commission (Figure A-1). Two federally listed bats, Gray bat and Indiana bat, exist within the watershed feeding on terrestrial and aquatic insects located in forested riparian areas (LaVal et al. 1977). The Neosho mucket mussel is a candidate species that has been found historically in the Illinois River concentrated in silty backwater areas and shallow riffles (Mather, 1990). These conditions exist within the proposed mitigation area and an aquatic survey is planned for Summer 2013. Table 2: List of species of concern located in the Illinois watershed of Washington County, AR

Name

Common Name

Status

Rank

Federal

State

Global

State

Lampsilis rafinesqueana

Neosho mucket

C

INV

G2

S1

Etheostoma cragini

Arkansas darter

C

INV

G3G4

S1

Myotis grisescens

Gray bat

LE

INV

G3

S2S3

Myotis sodalis

Indiana bat

LE

INV

G2

S1

The proposed mitigation site was used primarily for hay production with stream channel segments ditched, filled or manipulated to facilitate agriculture. Riparian vegetation has been recently treated with herbicide to remove river cane (Arundinaria gigantean) encroaching into the working pastureland. Benefits include improved water quantity through water retention and increased ground water recharge. Restoration and reforestation of this site will improve water quality through water retention, reduce sediment contributions to the Illinois River, and provide connectivity to the nearby Ozark National Forest. 3.0 Site Protection Instrument The property is owned by a private third party and the mitigation acreage will be placed in a conservation easement with the Arkansas Land Trust and filed at the courthouse in Washington County. The site will be monitored annually by the Arkansas Land Trust to ensure that the easement restrictions are being followed.

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DRAFT Illinois River Mitigation Bank Prospectus

4.0 Baseline Information The Illinois River watershed is located in Benton and Washington counties of Northwest Arkansas and flows into northeast Oklahoma before reaching the Arkansas River below Lake Tenkiller. It is a perennial channel originating in the Ozark Highlands of south central Washington County. The Illinois River mitigation bank site is located within the Ozark Highlands (39); subsection 39b ­Dissected Springfield Plateau ecoregion (AWAP 2004) approximately 15 miles west of downtown Fayetteville near Lake Wedington. The valley slope within the project area is relatively flat, with elevations ranging from 1,059 ft MSL for the uplands along Viney Grove Rd to 1,023 ft MSL along the thalweg of the Illinois River. Channel slope of the existing ditch, Reach A, is approximately 0.0017ft/ft . Lake Wedington, Arkansas, receives an average of 46 inches of rainfall per year. Soils are mapped into six primary units, all are considered partially hydric. The Illinois riparian zone, 35.8 acres, is Razort silt loam, slope 3-8 percent, occasionally flooding. These are moderately well-drained soils with a parent material of cherty limestone. The secondary soils, 22.5 acres, Guin very gravelly silt loam, 3-8 percent slopes, located on the western portion of the property along Viney Grove Road. These are well drained soils with a parent material of loamy colluvium derived from cherty limestone. The third soil type is Sloan silt loam, 21.8 acres, slope of 0-3 percent, with frequent flooding. These are frequently flooding soils. The forth unit is Razort gravelly silt loam, 17.4 acres, with occasional flooding and a slope of 0-2 percent. These are well drained soils with a parent material of loamy alluvium. The fifth unit is Captina silt loam, 5.6 acres, with 1-3 percent slopes. These are moderately well drained soils with a parent material of silty pedisediment over silty and clayey residuum weathered from cherty limestone. The sixth unit is Captina silt loam, 4.0 acres, with 3-6 percent slopes. These soils are moderately welldrained with a parent material of silty pedisediment over silty and clayey residuum weathered from cherty limestone (Figure A-5). A formal wetland delineation is scheduled to determine jurisdictional status. Bermuda grass (Cynodon dactylon) and tall fescue (Festuca arundinacea) dominate the open pasture land. Preliminary plant observations reveal the wetland components of this site are represented by various sedges (Carex spp.), panic grasses (Dichanthelium/Panicum spp.), and cattails (Typha latifolia). Establishment of baseline plant community monitoring transects is slated for Summer 2013. In addition to the vegetative monitoring, avian point counts, and benthic macroinvertebrate and mussel sampling will be conducted to help determine restoration activities and goals, as well as, illustrate ecological lift after restoration activities are implemented. 5.0 Determination of Credits The method of credit determination will be a combination of stream channel restoration, enhancement, preservation, and riparian buffer creation. The Little Rock Stream Method (USACE 2011) will be used to determine the amount of stream credits with wetland credit determination following the Charleston Method (USACE 2002). Stream segments that overlay with wetland areas or buffers will not be stacked for mitigation credits.

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DRAFT Illinois River Mitigation Bank Prospectus

6.0 Mitigation Work Plan The overall workplan for the site will focus on the restoration of Reach A and its four contributing tributaries. Site preparation activities will include conducting comprehensive topographic and geomorphic surveys of existing stream and wetland conditions. These existing conditions will be evaluated for departure from reference conditions and restored to appropriate dimension, pattern, and profile. All of the construction will be performed during the dry season. No construction will take place within the identified archaeological areas (Figure 7). A prescribed burn will be conducted prior to construction. Mechanical ripping (outside the identified archaeological areas) will be performed prior to tree seedling planting to facilitate tree survival rates. The entire project area will be re-vegetated in native trees, shrubs, grasses, and forbs. Illinois River Within this section of the river the Illinois River is a third order stream approximately 80 ft wide flowing south to north along the eastern boundary of the property. The channel is bedrock controlled throughout this 2,500 LF reach with fair to moderate evidence of lateral stress. Exposed streambanks will be stabilized using bioengineering techniques such as live-staking, live palisades, brush layering, and wattle fencing where applicable. Potential Neosho mucket mussel habitat exists with active riffles, and shallow backwater areas with a sand and gravel substrate. Reaches A-E Preliminary site surveys found Reach A as a 6-12 ft wide intermittent channel originating west of Viney Grove Rd that was ditched to drain the adjacent pastures. Reach A takes an abrupt right angle turn at the confluence with Reach E and flows north 2,700 LF before the confluence with Reach C. Looking at historical photographs Reach B is a 4-6 ft wide ephemeral channel that has also been ditched to expedite drainage. The upper portion has been filled with stream channel features completely obliterated. The new planform will route the stream to meander 1,436 LF down valley as seen in older aerial photographs before reaching Reach A at station 2+668. Reach C is an intermittent creek channel receiving waters from Lake Wedington and located 6,500 ft from the dam spillway. Approximately 570 LF of this channel flows through the project area. Bank stabilization activities will be performed along exposed streambanks and the riparian zone will be re-vegetated. Reach D is an ephemeral ditch that drains Wetland Area B for 516 LF before reaching Reach A. Another ditched channel, Reach E, enters from the south and currently connects with Reach A at the property boundary. Both of these reaches will be reconstructed to exhibit historical planform features. These existing ditches will be plugged where feasible and left open as wetland depression areas. Wetlands There are two primary wetland areas, totaling approximately 10-acres, within the proposed mitigation site, an existing Wetland Area A and a degraded Wetland B. The wetland activities will be a combination of restoration and enhancement of existing wetland features. Wetland Area A is a 10-acre elongated area located in the swale adjacent to the ditch of Reach A (Figure 4). Wetland indicators are present onsite including, but not limited to, the existence of wetland hydrology, true aquatic plants and active crayfish burrows. Only acreage outside of the 100-ft

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DRAFT Illinois River Mitigation Bank Prospectus

stream riparian buffer zone will be assessed for wetland mitigation credit potential. The second wetland area, Wetland Area B, is also located within an elongated 5-acre swale in the Illinois River floodplain. This wetland area has been filled in places to facilitate hay production. This wetland drains into Reach E at the northern end. Fill material will be removed from impacted areas and the entire wetland area will be revegetated with appropriate vegetation grown within the Streamworks Mitigation Services, LLC greenhouse operation. Riparian Buffer The entire mitigation area will be re-vegetated through hand planting native hardwood and herbaceous species with a density of 302 stems/acre. A minimum 100-ft buffer will be maintained where property boundaries allow and increased to include upland buffers where possible. During the dormant season, Black willow (Juglans nigra), Alder (Alnus serrulata) and Sycamore (Platanus occidentalis) stakes will be placed along the streambanks of the intermittent and perennial channels. Tree and shrub seedlings will be planted in winter 20152016. The floodplain zone will consist of the appropriate floodplain species, while the upland buffers will consist of an oak-hickory mix with a representative understory if available. 7.0 Operation and Maintenance Plan The project will be developed and implemented by Streamworks Mitigation Services, LLC. The site will be maintained and monitored annually by Streamworks with reports submitted to the LRD for review. 8.0 Performance Standards The overall performance standard and success criteria for stream and wetland compensation is demonstrable ecological lift within the project site. This lift will be measured through biological surveys and reinforced through geomorphic monitoring, vegetative monitoring, and qualitative stability indices. The performance standards will follow guidelines from the Compensatory Mitigation Standard Operating Procedure (USACE 2006) and approved by the IRT and LRD. 9.0 Monitoring Requirements Monitoring will be conducted by Streamworks Mitigation Services, LLC, for five years or until the LRD determines the project is complete. Permanent cross-sections and longitudinal feature parameters will be established following the guidelines set forth in the Little Rock Stream Method (USACE 2011). This data will be collected and analyzed annually to determine if success criteria are being met. 10.0 Long-term Management An escrow account will be established by Streamworks Mitigation Services, LLC to adequately service long-term management goals. These long-term management activities will be conducted by Streamworks. At a later time, and with approval from the LRD, Streamworks may designate a long- term steward or an entity to act as steward. 11.0 Adaptive Management Upon a determination by USACE that performance standards have not been met or the

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DRAFT Illinois River Mitigation Bank Prospectus

compensatory mitigation project is not on track to meet those standards, the monitoring period may be extended. USACE may also revise monitoring requirements when remediation and/or adaptive management are required. In the event that the success criteria have not been met, remedial action will be taken within 90 days. 12.0 Financial Assurances Financial assurances will be provided by Streamworks Mitigation Services, LLC. References

AWAP (2004) Ecoregions of Arkansas , Arkansas Wildlife Action Plan USEPA and USACE (2008) Compensatory Mitigation for Losses of Aquatic Resources, Final Rule. Regulation 40CFR Part 230 USACE (2005) Compensatory Mitigation Standard Operating Procedure, Department of Army, Regulatory Branch, LRD. USACE (2011) Little Rock District Stream Method. Department of the Army, Little Rock District. USEPA (1972) Clean Water Act, CWA. 33 U.S.C. §1251 et seq. Regulation 40 C.F.R. pts. 104-149. Charleston Regulatory Division - Standard Operating Procedure Issued September 19, 2002 Compensatory Mitigation LaVal, R. K., R. L. Clawson, M. L. LaVal, and W. Caire. (1977). Foraging behavior and nocturnal activity patterns of Missouri bats, with emphasis on the endangered species Myotis grisescens and Myotis sodalis. J. Mamm. 58:592-599 Mather, C. (1990). Status survey of the western fanshell and the Neosho mucket in Oklahoma. Final Report to the Oklahoma Deptartment of Wildlife Conservation. Project No. E-7, Oklahoma. 22 pp.

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DRAFT Illinois River Mitigation Bank Prospectus

Appendix A Figures

Figure 1: Vicinity Map for the Illinois River Mitigation Bank

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DRAFT Illinois River Mitigation Bank Prospectus

Figure 2: Topographic Map for the proposed Illinois River Mitigation Bank (USGS 24K)

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Figure 3: Soils map of the proposed Illinois River Mitigation Bank. Ra=Razort silt loam Sn= Sloan silt loam CaC=Captina silt loam GuC= Guin very gravelly silt loam Rg = Razort gravelly silt loam

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DRAFT Illinois River Mitigation Bank Prospectus

Figure 4: Aerial map of existing conditions of the proposed Illinois River Mitigation Bank

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Figure 5: Aerial map of the conceptual planform of the proposed Illinois River Mitigation Bank

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Figure 6: Primary and secondary service areas for the proposed Illinois River Mitigation Bank

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Figure 7: Archaeological sites identified within the project area

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DRAFT Illinois River Mitigation Bank Prospectus

Appendix B Photo documentation

Figure B-1: Photo points taken on April 18, 2013 of the proposed Illinois River Mitigation Bank

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Photo 1: Wetland Area A facing downstream

Photo 2: Reach A ditch facing downstream

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Photo 3: Reach A facing upstream

Photo 4: Reach B entering Reach A

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Photo 5: Reach A along southern property line

Photo 6: View of Reach A and Wetland Area A facing south

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DRAFT Illinois River Mitigation Bank Prospectus

Photo 7: Reach A downstream of Viney Grove Rd.

Photo 8: Reach D facing upstream

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DRAFT Illinois River Mitigation Bank Prospectus

Photo 9: Reach D ditch entering Reach A along the east pasture

Photo 10: Reach D enters Reach A along the northern property boundary

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DRAFT Illinois River Mitigation Bank Prospectus

Photo 11: Illinois River facing downstream from the north end of the project site

Photo 12: View of pasture from north to south

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DRAFT Illinois River Mitigation Bank Prospectus

Photo 13: Herbicide treated river cane along the west bank of Illinois River

Photo 14: Top of bank river left of the Illinois River in the middle of the property

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Photo 15: View of the pasture facing east from the middle of Reach A

Photo 16: View of riffle facet of the Illinois River along the southern end of the project area

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Photo 17: View of Illinois River looking upstream from the south end of the property

Photo 18: East bank of Illinois River from the west bank along the lower end of the reach

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Photo 19: West side of the Reach A ditch facing south in the middle of the pasture

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