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ENVIRONMENTAL ASSESSMENT
EA Number: OR-104-06-04
BLM Office: Swiftwater RA, Roseburg District
Proposed Action Title: Umpqua Basin Tree Revetment Project 2006
Location of Proposed Action
Table 1: Location of Stream Segments Proposed for Restoration
Stream Name Township Range Section(s)
Deer Creek (Both Forks)
27 South 5 West 15, 16, 19, 20, 21, 22, 23, 24, 25, 26, 35 & 36
4 West 14, 15, 16, 19, 20, 21, 22, 23, 24, 26, 27, 28, 29, 31, 32, 34 & 35
28 South 5 West 1, 2, 11, 12, 13 & 24
4 West 4, 5, 8 & 9
Dixon Creek 26 South 5 West 22, 23, 27, 28, 29 & 33
Huntley Creek 26 South 4 West 10 &15
North Myrtle Creek
27 South 4 West 31
28 South 3 West 6
4 West 12, 13, 23, 24, 26, 27, 33 & 34
29 South 4 West 4, 5, 7, 8, 17 & 18
5 West 13, 14, 22, 23, 24, 27 & 28
South Myrtle Creek 29 South
2 West 6
3 West 2, 10, 15, 16, 19, 20 & 21
4 West 19, 20, 21, 22, 23, 24, 29 & 30
5 West 25, 26 & 27
Pass Creek
22 South 5 West 4, 8, 9 & 17
21 South 5 West 25, 33, 34, 35 & 36
4 West 9, 10, 11, 14, 16, 17, 19, 20 & 30
Tenmile Creek 28 South 7 West 27, 28, 29, 31, 32 & 33
8 West 4, 15, 16, 23, 24 & 25
Shoestring Creek 30 South 5 West 30
6 West 25 & 36
Quines Creek 32 South 5 West 22, 23, 26 & 35
Environmental Assessment OR-1-4-06-04 6/12/2007 Umpqua Basin Tree Revetment Project 2006
U.S. Department of the Interior, Bureau of Land Management Roseburg District Office 777 NW Garden Valley Blvd. Roseburg, Oregon 97470
Comments on this environmental assessment, including the names and street addresses of respondents, will be made available for public review at the above address during regular business hours, 8:00 A.M. to 4:30 P.M., Monday through Friday, except holidays.
Individual respondents may request confidentiality. Such requests will be honored to the extent allowed by the law. If you wish to withhold your name or street address from public review or from disclosure under the Freedom of Information Act, you must state this prominently at the beginning of your written comment. Submissions from organizations, businesses, and individuals identifying themselves as representatives or officials of organizations or businesses, will be made available for public inspection in their entirety.
In keeping with Bureau of Land Management policy, the Roseburg District posts Environmental Assessments, Environmental Impact Statements, Findings of No Significant Impact, and Decision Records/Documentations on the district web page under Planning & Environmental Analysis, at www.or.blm.gov/roseburg, on the same day in which legal notices of availability for public review and notices of decision are published in The News-Review, Roseburg, Oregon. Individuals desiring a paper copy of such documents will be provided one upon request. Individuals with the ability to access these documents on-line are encouraged to do so as this reduces paper consumption and administrative costs associated with copying and mailing.
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Environmental Assessment OR-1-4-06-04 6/12/2007 Umpqua Basin Tree Revetment Project 2006
Table of Contents
Location of Proposed Action........................................................................................................... 1 Table of Contents ............................................................................................................................ 3 Chapter 1 Purpose & Need for Action ............................................................................................ 4
A. Background .......................................................................................................................... 4 B. Proposed Action.................................................................................................................... 4 C. Relevant Policies, Assessments, and Plans........................................................................... 5 D. Objectives ............................................................................................................................. 6 E. Decision Factors.................................................................................................................... 6
Chapter 2 Discussion of Alternatives.............................................................................................. 7 A. The No Action Alternative ................................................................................................... 7 B. The Proposed Action Alternative ......................................................................................... 7 C. Project Design Features as part of the Action Alternative .................................................. 8 D. Monitoring........................................................................................................................... 8 E. Issues and Resources Considered but Eliminated............................................................... 8
Chapter 3 Affected Environment & Consequences by Resource.................................................... 9 A. Affected Environment .......................................................................................................... 9
1. Botany ............................................................................................................................. 9 2. Hydrology........................................................................................................................ 9 3. Soils ............................................................................................................................... 10 4. Fisheries......................................................................................................................... 10 5. Wildlife.......................................................................................................................... 12
B. Environmental Impacts of the No Action........................................................................... 12 C. Environmental Impacts of the Proposed Action................................................................. 13
1. Description of Potential Impacts ................................................................................... 13 a. Botany...................................................................................................................... 13 b. Hydrology................................................................................................................ 13 c. Soils ......................................................................................................................... 14 d. Fisheries................................................................................................................... 14 e. Wildlife.................................................................................................................... 14
2. Cumulative Impacts Analysis........................................................................................ 14 a. Botany...................................................................................................................... 14 b. Hydrology................................................................................................................ 14 c. Soils ......................................................................................................................... 15 d. Fisheries................................................................................................................... 15 e. Wildlife.................................................................................................................... 15
Chapter 2 Contacts, Consultations, and Preparers ........................................................................ 18 Agencies, Persons, and Permittees Contacted........................................................................... 18 Public Notification .................................................................................................................... 18 List of Preparers ........................................................................................................................ 18 References Cited........................................................................................................................ 19
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Environmental Assessment OR-1-4-06-04 6/12/2007 Umpqua Basin Tree Revetment Project 2006
Chapter 1 Purpose & Need for Action
A. Background
The Bureau of Land Management (BLM) responded to Section 205 of the Secure Rural Schools and Community Self-Determination Act of 2000 (Pub. L. No. 106-393) (the Act) by forming the Roseburg District BLM Resource Advisory Committee (RAC). It is an organization of local community members that collaborates in federal land management activities in the selection of projects to be conducted on federal lands or that will benefit resources on federal lands using O&C/County funds under Title II of the Act. The RAC’s designated federal officer (DFO) shall submit federal projects to be considered for funding under Title II of the Act to the Resource Advisory Committee. The Committee members shall review the federal projects and transmit their recommendations on those projects to the DFO on or before September 1. No later than September 30, the DFO will submit to the Secretary of the Interior, or his designee, a description of projects that the Resource Advisory Committee recommends undertaking using funds reserved by eligible counties for expenditure pursuant to Title II of the Act and within the Committee's geographic jurisdiction.
The Act states that “[p]roject funds shall be expended solely on projects that meet the requirements outlined in the Act including a description of the project,” duration, cost, source(s) of funding, and expected outcomes that meet or exceed desired ecological conditions. The project must also detail a monitoring plan that tracks and identifies the impacts, implementation, and assesses the projects results whether or not the project exceeded desired ecological conditions, etc.
Douglas Soil and Water Conservation District (DSWCD) proposed the Umpqua Basin Tree Revetment Project for funding, because many streams in Douglas County have streambank erosion. This erosion has resulted in increased levels of sediment delivered and suspended or stirred up in the stream-flow. Existing riparian vegetation is sparse and does not provide enough root mass to support bank stability or stream canopy to provide shade. The Roseburg BLM District RAC recommended and Jay Carlson, Roseburg District Manager (DFO) approved the project in September 2005. The Bureau of Land Management is developing the National Environmental Policy Act (NEPA) documentation because the project is federally funded.
This federally funded project would benefit the Bureau of Land Management by improving watershed health; by improving stream stability with willows and other native plant species, reducing sedimentation in project streams which would improve pool, spawning and rearing habitat for resident and anadromous fish. Overall, this would improve habitat for coho salmon and other native fish populations. It would also enhance relationships between the BLM, local communities, and private landowners through collaboration with DSWCS and the RAC.
B. Proposed Action
The DSWCD proposes to improve stream channel conditions (selected from approximately 130 stream miles) entirely on privately owned and managed lands by placing and securing tree revetments along streambanks, removing invasive brush, and planting native vegetation along
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streambanks and riparian areas. Revetments are structures, such as clumps of Christmas trees, secured to streambanks, positioned to catch sediment, and slow stream velocities. This would improve overall stream conditions and water quality by adding structure to riparian systems. Tree revetments are an effective method for landowners to prevent or control streambank erosion as part of an overall riparian zone restoration process. The identified project areas are well suited for tree revetments because of poorly developed and unstable riparian corridors and eroding streambanks. The revetments collect sediment and provide a foundation for riparian vegetation reestablishment. The sediment trapped by the revetments improve downstream water quality, reduce stream current near eroding banks, and develop areas to serve as a planting sites for riparian zone vegetation. This vegetation helps to trap more sediment, binds the soil to the streambank, and provides future streamside shade.
Project sites were selected from private lands that are easily accessible with fair habitat conditions, but actively eroding streambanks. Operations would occur during the dry season when soil strengths are at their greatest. Poorly drained areas would be avoided when water tables are high. The project would be completed within the ODFW instream - work period of July 1 through September 16.
The proposed project would be conducted by hand, without the use of mechanized equipment, minimizing ground disturbance. Seven to ten tree revetments would have “t” posts installed in the streambank to secure clumps of trees, by cable in selected streams throughout the County (potential location maps attached). Invasive brush would be manually removed and native riparian vegetation would be hand planted along the banks for long-term bank stability and riparian habitat improvement.
C. Relevant Policies, Assessments, and Plans
This project would occur entirely on privately owned and managed lands. Although the Roseburg District Record of Decision and Resource Management Plan (RMP) does not apply, CEQ regulations state that since the project would be “entirely or partly financed” by federal agencies this would be considered a federal action (1508.18 (a) and (b) (4)). For this reason, the National Environmental Policy Act does apply and the project impacts must be analyzed.
1. The project would follow the “Umpqua Basin Watershed Assessment and Action Plan” developed by the Umpqua Basin Watershed Council. The plan recommends placement of instream structures similar to tree revetments to “improve pools, collect gravel and improve overall fish habitat.” It also recommends riparian area protection that includes “planting native riparian trees and shrubs and understory vegetation (Title II, 2005).
2. The project would also take direction from “The Oregon Plan for Salmon and Watersheds” that encourages “restoration and healthy function of Oregon’s natural aquatic systems” (Title II, 2005).
D. Objectives
The overall objectives of the proposed action are to directly improve streambank and indirectly
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improve stream/fish habitat conditions in selected areas for species that use them sometime during their lifecycle.
Specific objectives of the proposed action are to:
• Place revetments in such a manner as to trap silt and sediment and reduce the stream’s current near eroding streambanks.
• Remove invasive brush to make room for native riparian vegetation.
• Plant native riparian vegetation along streambanks to stabilize banks and provide shade and riparian habitat for terrestrial and aquatic species.
• Place revetments and plants in such a manner to improve stream conditions (i.e., temperature, turbidity, etc.)
E. Decision Factors
Factors to be considered when selecting among alternatives will include:
• The degree to which the objectives previously described would be achieved including: the manner that placement of revetments would be conducted, the time period of the proposed treatment, cost and funding sources;
• The expected result from tree revetments installation, invasive brush removal, and native riparian vegetation planting;
• The indirect benefit to federal lands and resources through stabilizing streambanks and reducing erosion and downstream sedimentation on privately owned and managed lands;
• Willingness of private landowners to participate in the proposed project.
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Chapter 2 Discussion of Alternatives
A. The No Action Alternative
The No Action Alternative provides a baseline for the comparison of the alternatives. This alternative describes the existing condition and continuing trends anticipated in the absence of the proposal but with the implementation of other reasonably foreseeable federal and private projects.
Federal funding would not be extended to assist in streambank stabilization or improvement of stream comditions on private lands from this project. Although funding could be sought from alternate sources, both lateral (along the streambed) and vertical (down-cutting) erosion would likely continue until funding was obtained to accomplish the work.
Lateral erosion creates the majority of sedimentation. The rate of stream bank erosion is not constant, but is episodic, occurring during large storm events. However, one to two feet of bank erosion is common annually and in some locations, as much as 10 feet can erode in a single flood event. Sediment levels and amounts of suspended particles in the stream-flow would likely continue unchecked. Invasive plants would likely continue to occupy growing space, inhibiting growth of native plants. Sediment would not be trapped adequately and stream current would continue to erode banks. Poorly developed and unstable riparian corridors would continue.
B. The Proposed Action Alternative
This alternative proposes funding of the Douglas Soil and Water Conservation District project to improve stream channel conditions (selected from approximately 130 stream miles) on private lands by placing and securing tree revetments along streambanks, removing invasive brush, and planting native vegetation along streambanks and riparian areas. Landowners, students and community volunteers would contribute labor. DSWCD would be responsible for youth or volunteer programs.
1. Invasive Brush Removal Hand cutting and pulling invasive, noxious, and non-native brush would be performed to prepare potential treatment locations.
2. Installing Revetments Seven to ten tree revetments (structures, such as clumps of Christmas trees, secured to streambanks, positioned to catch sediment, and slow stream velocities) would have series of “t” posts installed in streambanks. Clumps of trees would be attached to the “t” posts by a cable to hold the trees in place during high water events. The posts and tree clumps would be arranged along the streambank to catch and hold sediment in place, then divert stream current away from the streambank.
3. Native Vegetation Planting DSWCD obtained permission to harvest trees from six sites, which would be donated to the project. No trees would be removed from federal lands directly related to this project. Native trees and shrubs would be planted in or along streambanks. Landowners, students and
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community volunteers would contribute labor for native riparian tree and shrub species planting. DSWCD would be responsible for youth or volunteer programs.
This project would follow the “Umpqua Basin Watershed Assessment and Action Plan” developed by the Umpqua Basin Watershed Council. The plan’s key findings and recommendations include “the placement of large root wads, logs and/or boulders in streams or creeks to improve pools, collect gravel and improve overall fish habitat.” Additionally, the plan encourages land use practices that enhance or protect the riparian areas by: “Protecting riparian areas from livestock-caused browsing and bank erosion through riparian fencing and providing off-channel water systems and by planting native riparian trees and shrubs and understory vegetation in areas with poor or fair riparian areas.”
C. Project Design Features as part of the Action Alternative
1. To protect riparian habitat: All operations in the riparian area would be done by hand. No mechanized equipment would be used in the riparian area. The project would be completed within the ODFW instream work period of July 1 through September 16.
2. To minimize soil erosion as a source of sedimentation to streams: Materials used in the project would be manually transported to the project. No roads would be constructed to access project locations and easily accessible sites would be selected to facilitate access.
3. To prevent the spread of noxious weeds: Equipment would be would be clean and free of weed seed prior to operations in the riparian area.
D. Monitoring
Douglas Soil and Water Conservation District would establish photo points to visit for photo documentation at year 1, 2, 5, and 10 after operations are completed. Landowners, at their discretion, may assist in monitoring by providing photos from the established photo points.
E. Issues and Resources Considered but Eliminated
Although this proposed action is a federal action, Aquatic Conservation Strategy (ACS) consistency was not evaluate in this analysis, because the proposed action is not a on federally administered lands. The ACS applies to federally administered lands within the Northwest Forest Planning Area.
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Chapter 3 Affected Environment & Consequences by Resource
A. Affected Environment
The affected area was analyzed for the resources listed below.
1. The proposed projects would be located on private lands, therefore surveys for Special Status or Survey and Manage plants are not applicable (Bureau Manual 6840).
2. The proposed projects would be located on private lands, therefore surveys for Special Status or Survey and Manage wildlife species are not applicable (Bureau Manual 6840).
3. A records review for cultural resources indicated the presence of two previously recorded archaeological sites within the project area. The areas near the two sites have been excluded from the project.
1. Botany – Review of data, records, and maps have indicated that Special Status Plants are not likely to exist in the project areas. Specifically, habitat is not present for Plagiobothrys hirtus (Recovery Plan for the Rough Popcorn Flower, USFWS, Portland OR, 2003). Additionally, there is no habitat present for Lupinus sulphureus ssp. kincaidii. (Recovery Outline for Lupinus sulphureus ssp. kincaidii, USFWS, Portland OR, 2006).
There are infestations of noxious, invasive, and non-native plants throughout the project area, including Scotch broom (Cytisus scoparius), Himalayan blackberry (Rubus discolor), Gorse (Ulex europaeus), Yellow star thistle (Centaurea solstitalis), and Hawthorn (Crataegus monogyna) among others. These species would be cut or pulled within the revetment sites.
2. Hydrology - The proposed project is located within the following fifth-field watersheds and sixth-field subwatersheds:
Table 2. Watersheds and Subwatersheds. Tree Revetment Project Watershed Subwatershed
Deer Creek North Fork Deer Creek South Fork Deer Creek
Lower South Umpqua Upper Deer Creek Lower Deer Creek
Dixon Creek Lower North Umpqua Cooper Creek Huntley Creek Lower North Umpqua Cooper Creek
Myrtle Creek North Myrtle Creek South Myrtle Creek
Myrtle Creek
Upper North Myrtle Lower North Myrtle Upper South Myrtle Lower South Myrtle
Pass Creek Elk Creek/Umpqua River Upper Pass Creek Lower Pass Creek
Shoestring Creek Lower Cow Creek Lower Cow Creek Tenmile Creek Olalla Creek-Lookingglass Creek Tenmile Creek
Quines Creek Middle Cow Creek Cow Creek-Quines Creek
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Beneficial Uses of Water downstream of the project areas consist primarily of domestic water supply, irrigation and livestock watering, resident fish and aquatic life, and salmonid spawning and rearing. Deer Creek, North Myrtle Creek, South Myrtle Creek, and Quines Creek were identified by the ODEQ as water quality limited for summer temperature. In addition, Deer Creek is listed for exceeding the dissolved oxygen and fecal coliform standards. The North Fork of Deer Creek is also listed for fecal coliforms (Oregon DEQ, 2003).
3. Soils – The proposed tree revetments would affect soils formed on floodplains, terraces, alluvial fans and footslopes bordering and in close proximity to treatment streams. The soil properties are highly variable. They typically have soil textures that are moderately erodible and sensitive to compaction. Some textures are highly erodible. Both moderately erodible and highly erodible soil textures are very sensitive to stream bank erosion under bare soil conditions. Some affected soils might have a seasonably high water table (poorly drained soils) (Natural Resource Conservation Service Soil Survey of Douglas County).
4. Fisheries – The proposed action would occur on fish-bearing streams or their tributaries. The affected fifth-field watersheds are:
1. Lower South Umpqua, 2. Lower North Umpqua, 3. Myrtle Creek 4. Elk Creek/Umpqua River 5. Middle Cow Creek 6. Lower Cow Creek 7. Olalla Creek-Lookingglass Creek
Oregon Coast Steelhead trout (Oncorhynchus mykiss), Coastal Cutthroat trout (O. clarki clarki), Oregon Coast Chinook salmon (O. tshawytscha), Oregon Coast coho salmon (O. kitsutch) and Pacific Lamprey (Lampetra tridentate) are present in each watershed. The Umpqua Chub (Oregonichthys kalawatseti) has been documented in the Lower South Umpqua, and Lower and Middle Cow Creek. There are no Threatened or Endangered species within the proposed project area. Oregon Coast Steelhead trout (O. mykiss) are a Federal Species of Concern. The proposed project is located within Essential Fish Habitat for coho and Chinook salmon.
Current Fish Distributions and Habitat Conditions (Compiled from BLM Watershed Analysis, ODFW Habitat Inventory/StreamNet GIS and ODEQ 303d List of Water Quality Limited Streams) –
Lower South Umpqua: Project Areas: Deer Creek, North Fork of Deer Creek, South Fork of Deer Creek
The Oregon Department of Fish and Wildlife (ODFW) documented winter steelhead and coho salmon presence throughout much of the Deer Creek watershed. Poor habitat conditions consisting of high stream temperatures and lack of stream habitat complexity (large woody structure,
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backwater pools, side channels, and flood plain connectivity) prevent sea-run cutthroat trout from using stream reach in the lower part of the South Umpqua River Basin.
ODFW Aquatic Habitat Inventories rated eleven of the twelve Deer Creek stream reach surveyed as being in “Fair” condition. One stream range was rated as being in “Poor” condition. Limiting factors cited include; reduced instream habitat structure, increased sedimentation, and absence of functional riparian areas. The Oregon Department of Environmental Quality (ODEQ) lists Deer Creek as water quality limited for: habitat modification, temperature (salmonid spawning 12.8 degrees Celsius, rearing 17.8 degrees Celsius), and dissolved oxygen (spawning).
Lower North Umpqua Project Areas: Dixon Creek, Huntley Creek.
ODFW has documented winter steelhead, coho salmon and cutthroat trout presence throughout much of Dixon Creek and Huntley Creek. Cutthroat is found primarily in headwater streams with gradients greater than 4 percent. ODFW reports that juvenile Pacific lamprey is found throughout the Lower North Umpqua watershed.
Within the Lower North Umpqua Watershed, ODFW surveyed 24 stream reach. Of these reach, none rated as fair or good. Twenty-three stream reach were rated as poor. More than 80% of reach have poor riparian areas, and 60% of reach have poor pool habitat. In the Lower North Umpqua Watershed, the North Umpqua River is 303(d) listed for summer and fall temperatures (Salmonid spawning 12.8 degrees Celsius, rearing 17.8 degrees Celsius).
Myrtle Creek Project Areas: Myrtle Creek, North Myrtle Creek, South Myrtle Creek.
Fall Chinook, coho salmon, and winter Steelhead trout are present in the watershed. Chinook and coho are found in lower portions of the watershed. Coho and Steelhead use the upper portions of both creeks.
ODFW Aquatic Habitat Inventories rated 74 out of approximately 875 miles in the Myrtle Creek basin. Upper South Myrtle Creek and North Myrtle Creek were rated as “Fair”. Lower South Myrtle Creek was rated as “Poor”. Relatively high width to depth ratios, lack of deep pools, sedimentation and lack of large woody debris contributed to less than optimal habitat. North Myrtle Creek is listed as water quality limited by the ODEQ for; habitat modification, temperature (salmonid year round non-spawning 18 degrees C), and dissolved oxygen (non-spawning). South Myrtle Creek is listed for temperature (salmonid year round non-spawning).
Elk Creek/Umpqua River Project Areas: Pass Creek
Elk Creek and its tributaries contain spawning and rearing habitat for low-to-mid water velocity dependant fish species. These include coho and Chinook salmon, steelhead, cutthroat trout, and pacific lamprey.
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ODFW Aquatic Habitat Inventories indicate that Pass Creek has a high percentage of instream fine sediment (35 percent - >50 percent). Harvey (2001) reported macroinvertebrate densities in several South Umpqua tributaries decreased by 75 percent when larger stream substrates became 40 percent embedded by fines. Diversity was also reduced, in particular, larger macroinvertebrates of high food value to juvenile salmonids. The ODEQ lists Pass Creek as water quality limited for dissolved oxygen and temperature (salmonids, year round, non-spawning 18 degrees Celsius).
Olalla Creek-Lookingglass Creek Project Areas: Tenmile Creek
Specific fish distribution and habitat information for Tenmile Creek was not available. However, ODFW has documented winter steelhead and resident rainbow trout, fall and spring Chinook salmon, coho salmon and sea-run and resident cutthroat trout as present in the Olalla/ Lookingglass watershed. Umpqua chub and Pacific lamprey are also present. ODEQ does not list Tenmile Creek as water quality limited.
Middle and Lower Cow Creek Project Areas: Lower Cow Creek- Quines Creek, Middle Cow Creek-Shoestring Creek.
ODFW has documented Lower and Middle Cow Creek use by winter steelhead and resident rainbow trout, fall and spring Chinook salmon, coho salmon and sea-run and resident cutthroat trout. Coho distribution in the watershed includes Quines Creek. BLM Bureau Sensitive Pacific lamprey and Umpqua chub are also present in Cow Creek.
Specific habitat information for Shoestring and Quines Creek is limited. However, ODFW Aquatic Habitat Inventories rated 52 of 67 streams in the Lower Cow Creek WAU as “Fair”. Two streams were rated as poor. Lack of large woody debris, excessive sediment, lack of shade and high stream temperatures were cited as limiting factors. The ODEQ lists Quines Creek as limited for salmonids due to habitat modification and elevated temperature (rearing 17.8 degrees Celsius).
5. Wildlife – Of the federally threatened wildlife species, the bald eagle (Haliaeetus leucocephalus), marbled murrelet (Brachyramphus marmoratus), and northern spotted owl (Strix occidentalis caurina) are known to occur within the proposed action area. However, none of the stream segments proposed for restoration occurs within one mile of a known bald eagle nest territory or marbled murrelet nest sites. No known spotted owl activity center occurs within 65 yards of proposed stream segments.
Within the proposed action area can be found designated habitats for the marbled Murrelet or the spotted owl. However, the stream segments proposed for restoration are not located within these critical habitat designations.
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B. Environmental Impacts of the No Action
The No Action Alternative provides a baseline for the comparison of the alternatives. This alternative represents the existing condition. If this alternative were selected there would be no improvement to the existing degrading conditions. Soil erosion would continue to degrade the streambanks and add fine and course sediment into the stream channels. Water quality would continue to decline and fisheries habitat conditions would continue to be impacted by chronic sedimentation. The impacts to fisheries from the discharge of sediment would be a result of two distinct mechanisms - increased turbidity and increased deposition of sediment. Increases in turbidity can cause respiratory distress (gill irritation). Respiratory distress would cause salmonids to avoid turbidity, thereby delaying adult salmonid spawning migrations, and by forcing juvenile fish to avoid rearing habitats (Meehan 1991). Delays in spawning migration and habitat avoidance both result in use of a fish’s energy reserves, and can lead to increased fish mortality. Increases in fine sediment (silt and clay) deposits on the streambed can result in embedded spawning gravels, thereby reducing the flow of oxygenated water to incubating eggs and reducing the number of eggs that successfully hatch. If large amounts of sediments enter the stream channel, pools may also start to fill in, further reducing the amount and quality of the habitat, and reducing the number of fish that could potentially rear there. Noxious, invasive and non-native plant species would continue to inhabit growing spaces along the streambanks and native riparian plant species would likely be crowded out. Structure from noxious, invasive, and non-native plants would create habitat unsuitable for wildlife species within riparian areas.
C. Environmental Impacts of the Proposed Action
1. Description of Potential Impacts
Analysis considers the direct impacts (effects caused by the action and occurring at the same place and time), indirect impacts (effects caused by the action but occurring later in time and farther removed in distance) and cumulative impacts (effects of the action when added to other past, present and reasonably foreseeable future actions) on the resource values.
a. Botany – Based on a determination that there would be minimal ground disturbance associated with the project, the Proposed Action is expected to have no effect on Special Status Plants (SSP). No adverse impacts to SSP are anticipated under this alternative because manual labor is used for placement of cables and tree clumps in the riparian areas. Project design features (e.g. equipment cleaning, and manual weed removal) would likely reduce the abundance and distribution of noxious, invasive, and non-native plant species within the Proposed Action project sites.
b. Hydrology – Tree revetments would have a direct effect on channel morphology by preventing or controlling streambank erosion. Streambank erosion tends to increase stream width to depth ratios which results in wider and shallower streams. Streambank erosion can also lead to a loss in streamside vegetation which provides shade to the stream. Wide, shallow streams tend to absorb more solar radiation, which along with reductions in stream shade can result in increased stream temperatures. The revetments collect sediment and provide a substrate for riparian
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vegetation reestablishment. The sediment trapped by the revetments would improve downstream water quality, reduce stream current near eroding banks, and serve as a planting site for riparian zone vegetation. This vegetation helps to trap more sediment, binds the soil to the streambank, and eventually provides streamside shade. Stabilized streambanks would allow for deposits of sediment to build up within the stream channel, which tends to result in a decrease in stream width to depth ratios, which results in a narrower and deeper stream. A deep, narrow stream would absorb less solar radiation and along with improved stream shade over time would be expected to decreased stream temperatures. This would improve water quality conditions for the streams listed as water quality limited for stream temperature. Decreased stream temperatures would also help improve dissolved oxygen levels in Deer Creek, but this project would have no effect on fecal coliform levels in the listed streams (Deer Creek and North Fork Deer Creek).
c. Soils – Manually moving trees and equipment from roads to streambanks and securing them by hand would reduce impacts to soil displacement and compaction. Dry season operations would reduce soil compaction because soil strengths are at their greatest during this period and poorly drained areas would be avoided when water tables are high. The revetments are expected to stabilize streambanks and generate a foundation for riparian vegetation.
d. Fisheries – No adverse impacts to fisheries are anticipated under this alternative.
Successful stabilization of eroding stream banks, and development of properly functioning riparian areas, are expected to provide several direct benefits to aquatic life. Physical habitat can be expected to improve through development of undercut banks, which provide vital cover and holding areas for fish. Increased riparian vegetation is expected to enhance overhead cover from predators and reduce thermal inputs. Reducing stream width to depth ratios is expected to increase water velocities, locally, flushing fines and improving spawning substrate. Fish holding areas in pools are expected to improve with increasing channel depth. Energy inputs to the stream, in the form of riparian leaf fall, increase macroinvertebrate productivity and is expected to enhance fish carrying capacity. Dill, et al., found that the sizes of coho territories are inversely related to the density of aquatic bottom food in the area (Grooot and Margolis, 1991).
e. Wildlife – There would be no direct or indirect impacts to federally-listed threatened or endangered wildlife species or critical habitat, because no federally-listed terrestrial wildlife species or their respective habitats are present within the proposed project area.
Once the revetments collect sediment and provide a foundation for riparian vegetation reestablishment, streamside shade would develop in time, which would improve habitat conditions for wildlife species that use the riparian corridors. In addition, planting of native species would improve the quality and structure of native vegetative habitat for wildlife species within the riparian habitats.
2. Cumulative Impacts Analysis
a. Botany – Noxious, invasive and non-native plant species populations at the site level would be reduced by manual removal. No cumulative effects are anticipated for federally listed Threatened or Endangered plant species.
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b. Hydrology – At the fifth-field watershed scale, the scope of this project is too small for substantively altering current watershed functions. It can be reasonably expected that under the “Umpqua Basin Watershed Assessment and Action Plan” that landowners would protect . . . riparian areas from livestock-caused browsing and bank erosion through riparian fencing and providing off-channel water systems. . . .” In five to ten years, this would lower the fecal coliform levels in the water and establishment of native riparian plants would improve bank stability. Fine sediment would be removed from the streambed while allowing it to be deposited onto vegetated streambanks. As other restoration projects are implemented, streambank stability and water quality would continue to improve.
c. Soils - At the fifth-field watershed scale, the scope of this project is too small to affect soil quality and productivity. It can be reasonably expected that under the “Umpqua Basin Watershed Assessment and Action Plan” that landowners would “protect . . . riparian areas from livestock-caused browsing and bank erosion through riparian fencing and providing off-channel water systems. . . .”
d. Fisheries – As indicated in the Hydrology and Soils assessments above, the proposed streambank treatments would be limited to the site scale and not extended to the fifth- Field. However, the proposed project would have a long-term (five to ten year) benefit through the reduction of sedimentation and improved water quality. A long-term reduction of chronic sedimentation would increase the fisheries potential though an increase in fish migration, as well as improved spawning and rearing habitats.
e. Wildlife – As indicated in the Hydrology and Soils assessments above, the proposed streambank treatments would be limited to the site scale and not extended to the fifth- Field. However, the proposed project, in conjunction with the “Umpqua Basin Watershed Assessment and Action Plan” would have a long-term (five to ten year) benefit through the reduction of sedimentation and improved water quality. A long-term reduction of chronic sedimentation would increase the fisheries potential through an increase in fish migration, as well as improved spawning and rearing habitats.
Critical Elements of the Human Environment
“Critical Elements of the Human Environment" is a list of elements specified in BLM Handbook H-1790-1 that must be considered in all EA's. These are elements of the human environment subject to requirements specified in statute, regulation, or executive order. These elements have been analyzed for potential effects and are as follows:
Critical Elements Potentially AffectedNo Yes
Air Quality X ACEC X Cultural Resources X Environmental Justice X Farmlands, Prime/Unique X Floodplains X Invasive and Nonnative Species X Nat. Amer. Religious Concerns X
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Environmental Assessment OR-1-4-06-04 6/12/2007 Umpqua Basin Tree Revetment Project 2006
Threatened & Endangered Species X Waste, Hazardous/Solid X Water Quality, Drinking / Ground X Wetlands/Riparian Zones X Wild and Scenic Rivers X Wilderness X
The following elements of the human environment are subject to requirements specified in statute, regulation, or executive order (BLM NEPA Handbook, Appendix 5). These resources or values are either not present or would not be affected by the proposed actions or alternatives, unless otherwise described in this EA. This negative declaration is documented below by individuals who assisted in the preparation of this analysis.
Table 3. Critical Elements of Human Environment for Umpqua Basin Tree Revetment Project
Element Responsible Position Remarks
Air Quality Fuels Management Possible minimal localized dust within project area Specialist
Areas of Critical Environmental Project is not within or near an ACEC. Environmental Concern Specialist
Cultural Resources Archeologist Project boundary adjusted to avoid site impacts.
Environmental Justice Environmental No disproportionate use by Native Americans, minorities Specialist or low-income populations.
Farm Lands (prime or Soil Scientist "No discernable effects are anticipated" (PRMP pg. 1-7) unique)
Flood Plains Hydrologist Floodplain function would not be affected.
Invasive Nonnative Species Treatment of invasive species and non-native species is not Botanist a component of this EA.
Native American Religious Environmental No concerns were noted from public contact Concerns Specialist
T&E Terrestrial Species Wildlife Biologist Proposed project would have no effect on T&E species.
T&E Plant Species Botanist Surveys for SSP are not required for this project.
T&E Aquatic Species Fisheries Biologist There are no listed fish species within the project area.
Hazardous/Solid Area Hazardous Applicable Haz. Mat. Policies would be in effect. Wastes Materials Coordinator
Water Quality No adverse affect to Water Quality or Drinking/Ground Hydrologist Drinking/Ground Water Water.
Wetlands/Riparian Zones Hydrologist No adverse affect to Riparian Zones or Wetlands.
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Environmental Assessment OR-1-4-06-04 6/12/2007 Umpqua Basin Tree Revetment Project 2006
Element Responsible Position Remarks
Wild and Scenic Rivers Recreation Planner Project is not within scenic river corridor
Wilderness Recreation Planner Project is not within a wilderness study area.
The following items are not considered a Critical Element, but have been cited by regulation or Executive Order as an item warranting consideration in NEPA documents:
Healthy Lands Initiative – This project would not violate the Healthy Lands Initiative.
Adverse Energy – Executive Order 13212 provides that all decisions made by the Bureau of Land Management will take into consideration adverse impacts on the President’s National Energy Policy. This project would not have a direct or indirect adverse impact on energy development, production, supply, and/or distribution and therefore would not adversely affect the President’s National Energy Policy.
Indian Trust Resources – Secretarial Order No. 3175 (November 8, 1993) requires that any significant impact to Indian Trust resources be identified and addressed in NEPA documents. There are no known Indian Trust resources; therefore, this project is expected to have no impacts to these resources.
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Environmental Assessment OR-1-4-06-04 6/12/2007 Umpqua Basin Tree Revetment Project 2006
Chapter 4 Contacts, Consultations, and Preparers
Agencies, Persons, and Permittees Contacted
US Fish and Wildlife Service National Oceanic and Atmospheric Administration (NOAA - fisheries) State Historic Preservation Office Douglas County Commissioners Seneca Jones Timber Co. Lone Rock Timber Co. Giustina Resources Ltd. PartnershipWeyerhaeuser Company Woolley Enterprises Inc.Roseburg Resources Co.
Preparers
A.C. Clough Team Lead Jeffrey Wall NEPA Writer/Editor Isaac Barner Cultural Resources James Harvey Fish BiologyDaniel Cressy Soil Daniel Dammann HydrologyElizabeth Gayner Wildlife Biology Evan Olson BotanyGary Basham Botany
Public Notification
1. Notification was provided (June 29, 2006) to affected Tribal Governments (Confederated Tribes of Grand Ronde, Confederated Tribes of Siletz, and the Cow Creek Band of Umpqua Tribe of Indians). No comments were received.
2. The general public was notified via the Roseburg District Planning Update (Winter 2006) which was sent to approximately 150 addressees. These addressees consist of members of the public that have expressed interest in Roseburg District BLM projects. No comments were received.
3. This EA, and its associated documents, will be provided to certain State, County and local government offices including USFWS, NMFS, Oregon Department of Environmental Quality, and the Oregon Department of Fish and Wildlife. If the decision is made to implement this project, it will be sent to the aforementioned State, County, and local government offices.
4. A 15-day public comment period will be established for review of this EA. A Notice of Availability would be published in The News-Review. The public comment period will begin with publication of the notice published in The News-Review on June 19, 2007 and
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end close of business July 5, 2007. Comments must be received during this period to be considered for the subsequent decision. This EA and its associated documents will be sent to all parties who request them. If the decision is made to implement this project, a notice will be published in The News-Review and notification sent to all parties who request them.
References
Geyer, Nancy A. 2000. Lower South Umpqua Watershed Analysis. Umpqua Basin Watershed Council and Bureau of Land Management – Roseburg District. Roseburg, Oregon, USA.
Grooot, C. and L.Margolis editors.1991. Pacific Salmon Life Histories. UBC Press, Vancouver, British Columbia.
Harvey, J.H. 2001. Results of Macroinvertebrate Monitoring Conducted in Support of the South Umpqua River Water Quality Management Plan. Bureau of Land Management – Roseburg District, Roseburg, Oregon, USA.
Meehan, William R. editor.1991. Influences of Forest and Rangeland Management on Salmonid Fishes and their Habitats. American Fisheries Society. Evans City, Pennsylvania, USA.
Oregon Department of Environmental Quality, 2003. Oregon’s final 2002 303(d) list, Portland Oregon [http://www.deq.state.or.us/wq/303dlist/303dpage.htm].
Oregon Department of Environmental Quality. 2006. Oregon DEQ Water Quality Division: Oregon’s 2004/2006 Integrated Report [http:/www.deq.state.or.us/wq/wqldata/wqlsdata2004/view303dlist04.asp].
Oregon Department of Fish and Wildlife. Umpqua Basin Aquatic Habitat Surveys.
Soil Survey of Douglas County Area, Oregon. USDA Natural Resource Conservation Service in Coorporation with USDA Forest Service, DOT, BLM, Oregon Agricultural Experiment Stations and Douglas County. 1994.
Title II Project Application for 2005 Funds (Round #5) Roseburg District Resource Advisory Committee. p. 6.
USDA Forest Service and USDI Bureau of Land Management and Fish and Wildlife Service. 2006. Programmatic Conservation Agreement for Kincaid’s Lupine in Douglas County. April 2006. p. 2.
USDI Bureau of Land Management. 1992a. Draft Roseburg District Resource Management Plan and EIS. Roseburg, Oregon, USA. 2 vols.
USDI Bureau of Land Management. 1994. Roseburg District Proposed Resource Management Plan/Environmental Impact Statement. Roseburg, Oregon, USA.
19
Environmental Assessment OR-1-4-06-04 6/12/2007 Umpqua Basin Tree Revetment Project 2006
USDI Bureau of Land Management. 1995. Record of Decision and Resource Management Plan. Roseburg District. Roseburg, Oregon, USA. 216 pp.
USDI Bureau of Land Management. 1998. Ollalla-Lookingglass Watershed Analysis. April 1998.
USDI Bureau of Land Management. 2000. Lower South Umpqua Watershed Analysis. May 2000. Roseburg District. Roseburg, Oregon, USA.
USDI Bureau of Land Management. 2002. Myrtle Creek Watershed Analysis and Water Quality Restoration Plan. October 2002.
USDI Bureau of Land Management. 2002. Lower Cow Creek Watershed Analysis and Water Quality Restoration Plan. November 2002. BLM District Office, Roseburg, Oregon.
USDI Bureau of Land Management. 2004. Elk Creek/Umpqua River Watershed Analysis. March 2004. BLM District Office, Roseburg, Oregon. 120 pp.
USDI Bureau of Land Management and Fish and Wildlife Service. 2003. OR/WA Field Book for ESA, Streamlined Consultation and Special Status Species: Section A—Bureau of Land Management Policies; 6840 Special Status Species Management. Last Updated: March 27, 2003.
USDI Fish and Wildlife Service. 2003. Recovery Plan for the Rough Popcorn Flower (Plagiobothrys hirtus).
20
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LegendStream Revetment ProjectStream - 3rd order and higherStream - 2nd orderInterstateState HighwayOtherNational Forest BoundaryResource Area BoundaryRoseburg District BoundaryCity LimitTownship RangeSection
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No warranty is made by the Bureau of Land Management as to the accuracy,reliability, or completeness of these data for individual or aggregate usewith other data. Original data were compiled from various sources. Thisinformation may not meet National Map Accuracy Standards. This productwas developed through digital means and may be updated without notification.
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19 2219 212016 15
131415 17 16 15 14 131317
181314 1415
1617
181315
1614
17181314 15
161718
151617 13
1418 18 18 16
17 1512111010 12
11 78 9
10 1211 1210 1211
10911 987 7 988
111211 10910987 8
77 98 10
1
23 6
65 4
432 56
16 5 4
12
13
256 31 42
34
55 4 32 6
1123456
3331
323134 3231
3331 36
35 323536 35343336
34333235
34 31363332313636 32
3335 3435
DC38
34333231DC372930
28 2527 25
3026
2630 262725 27282928
2927 2628302529
3030
252928 26
27272829
3024
2322212023 1924
22212019 22 23 212024 23
2419242322
211920
20 19242322
2120
19MS987DC41 1314
131516
171815
2 1665 3
4 25 34 41
2 3 512 6
3332313635
34333235 31363436
36 3335
3535 323134 31 3433 33
3234
32313332
2528
29 27 26 25 2725
26302829 28293025
232224
232120 2019 222119
1315141516 1314
161718 18
109 1012
1112117 7 98
65 4 1
323
61
2 45
1618 171617 1513
14 14 18131815
13
1417 17 1516181316
14161718
121110 129 1098788 9 10 10 11 1212
11 77 8 9127
1110 8 109987
56 11234
55
613
424 23
232219 20 2221 22 2423 212019 24242423
192320 2221 23222120DC38
19 1920
24232221
242221
20
14DC40 MS979
LegendStream Revetment ProjectStream - 3rd order and higherStream - 2nd orderInterstateState HighwayOther RoadNational Forest BoundaryResource Area BoundaryRoseburg District BoundaryCity LimitTownship RangeSection
©0 5 10 15 20
Miles
No warranty is made by the Bureau of Land Management as to the accuracy,reliability, or completeness of these data for individual or aggregate usewith other data. Original data were compiled from various sources. Thisinformation may not meet National Map Accuracy Standards. This productwas developed through digital means and may be updated without notification.
United States Department of the InteriorBureau of Land ManagementRoseburg District777 NW Garden Valley BlvdRoseburg, Oregon 97470
South RiverStream
Revetment Project
Ten Mile Creek
Deer Creek
Shoestring Creek
South Myrtle Creek
Quines Creek