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Home My WebLink About20021572 Ver 1_Monitoring Report_20080414a5 REEDY BRANCH 2007 FINAL MONTORING REPORT YEAR 3 OF 5 2007 EEP Project # 301 Alamance County, North Carolina Original Design Firm: ECOLOGIC ASSOCIATES PC 218-4 Swing Road Greensboro, NC 27409 Submitted to: T "M ej lie] ratr?Rna?+ NCDENR-EEP 1652 Mail Service Center Raleigh, NC 27699 APR 1 A 2008 UENR WTER ©UALIV DS AND SAT 11M1N R RECEIVED FEB L 7 2008 NC ECOSYSTEM ENHANCEMENT PROGRAM Monitoring Firm: SLe- ENGINEERING GROUP 1025 Wade Avenue Raleigh, North Carolina 27605 Phone: (919)789-9977 Project Manager: Phillip Todd ptodd@sepiengincering.com J"g@g1W9 Executive Summary Reedy Branch is a typical stream within this and surrounding watersheds, exhibiting instability and degradation in response to current and historical land use practices. Reedy Branch is a tributary of Cane Creek in the Cape Fear River Basin. The project site is located off of Quakenbush Road near Snow Camp, NC. Cattle pasture and chicken production make up the farm surrounding the restoration site. The restored stream is enclosed in a moderately dense wooded area and contains large bedrock outcrops as well other sporadic occurrences of bedrock throughout the reach. The site is located in the Carolina Slate Belt, known for shallow soils and high run-off during storm events resulting in very "flashy" flows and streams that tend to dry out during the summer as was confirmed during Monitoring Year 3. The main goal of this restoration project was to improve water quality in the Cape Fear River basin. Overall, Reedy Branch covers approximately 3,155 linear feet of stream. The reach is moderately to highly sinuous. The construction phase of the project included the improvement of bank stability and in-stream feature morphology while saving as much native forest vegetation as possible and preserving or enhancing several small wetlands located adjacent to the channel. Current monitoring for the site consists of evaluating both stream morphology and riparian vegetation. The stream monitoring included a longitudinal survey, cross section surveys, pebble counts, problem area identification, and photo documentation. A plan view featuring bankfull, edge of water, and thalweg lines as well as problem area locations was developed from the longitudinal survey. The vegetation assessment included a tally of planted vegetation in permanent vegetation plots, vegetation-specific problem area identification (i.e. bare areas and invasive species), and photo documentation. A vegetation problem area plan view was developed from the problem area identification. All morphological data, vegetation plot and pebble counts, cross section surveys, the longitudinal profile, and the plan view features were compared between monitoring years to assess project performance. The overall pattern, dimension, and profile apparently have remained stable through Monitoring Year 3. The channel bed substrate size distributions have remained fairly consistent through Monitoring Year 3, with a coarsening effect observed at the most downstream riffle cross section. There were several problem areas noted along the reach. These areas included some bank erosion, aggradation, and several problems with arm scour, piping, or placement location/angle at crossvanes. Several of these crossvanes were rated severe. There were also several rootwads noted to be placed too high on the bank. Some of the aggradation areas were noted to be associated with pickerelweed growth. No bank erosion areas were considered severe, however many areas were located on the outside of meander bends, reducing the overall meander performance rating to 66%. At the end of Monitoring Year 3, it may be concluded that bare root tree growth may be inhibited in some areas by the heavy prevalence of Japanese grass (e.g. Vegetation Plots #7 and 8) with areas of concern at Vegetation Plots #9 and 10. These stem densities represent the `identified planted material' as the inclusion of `volunteer' species would result in an increase in the stem densities for these plots. Overall the average seedling density across the entire project is well above the Monitoring Year 5 goal of 260 stems per acre. REEDY BRANCH STREAM RESTORATION YEAR 3 MONITORING REPORT CONDUCTED FOR: NCDENR ECOSYSTEM ENHANCEMENT PROGRAM TABLE OF CONTENTS 1.0 PROJECT BACKGROUND ...............................................................................................1 1.1 Project Objectives ....................................................................................... ..1 1.2 Project Structure, Restoration Type, and Approach ........................................... ..1 1.3 Project Location and Setting ............................................................................... ..1 1.4 History and Background ..................................................................................... ..4 2.0 PROJ ECT MONITORING METHODOLOGY ............................................................... ..6 2.1 Vegetation Methodology .................................................................................... ..6 2.2 Stream Methodology .......................................................................................... ..6 2.2.1 Longitudinal Profile and Plan View ..................................................... ..6 2.2.2 Permanent Cross-Sections .................................................................... ..6 2.2.3 Pebble Counts ....................................................................................... ..7 2.3 Photo Documentation ......................................................................................... ..7 3.0 PROJ ECT CONDITIONS AND MONITORING RESULTS .......................................... ..7 3.1 Vegetation Assessment ....................................................................................... ..7 3.1.1 Soils Data ............................................................................................. ..7 3.1.2 Vegetative Problem Area Plan View .................................................... ..7 3.1.3 Stem Counts ......................................................................................... ..7 3.2 Stream Assessment ............................................................................................. ..8 3.2.1 Longitudinal Profile and Plan View ..................................................... ..9 3.2.2 Permanent Cross Sections .................................................................... ..9 3.2.3 Pebble Counts ....................................................................................... ..9 3.2.4 Stream Problem Areas .......................................................................... 10 3.3 Photo Documentation ......................................................................................... 10 4.0 RECOMMENDATIONS AND CONCLUSIONS ............................................................ 10 REFERENCES ...................................................................................................11 TABLES Table I Project Restoration Components ..........................................................................................1 Table II Project Activity and Reporting History ........................................................... ....................4 Table III Project Contact Table .................................................................................... ....................5 Table IV Project Background Table ............................................................................. ....................5 Table V Preliminary Soil Data ..................................................................................... ....................7 Table VI Vegetative Problem Areas .............................................................................. ....................7 Table VII Stem counts for each species arranged by plot ............................................. Appendix A3 Table VIII Verification of Bankfull Events .................................................................. ....................9 Table IX BEHI and Sediment Export Estimates (not included in this year's data) Table X Stream Problem Areas ..................................................................................... Appendix B3 Table XI Categorical Stream Feature Visual Stability Assessment ............................. ..................10 Table XII Baseline Morphology and Hydraulic Summary ........................................... Appendix B3 Table XIII. Morphology and Hydraulic Monitoring Summary .................................... Appendix B3 FIGURES Figure 1: Vicinity Map ......................................................................................................................3 Reedy Branch SEPI Engineering Group EEP Project Number 301 Final Report February 2008 Monitoring Year 3 of 5 APPENDICES Appendix A Appendix A1: Photolog - Vegetation Problem Areas ..................................................................A1 Appendix A2: Photolog - Vegetation Plots .................................................................................. A2 Appendix A3: Vegetation Data Tables ..........................................................................................A3 Appendix B Appendix B 1: Photolog - Stream Problem Areas ......................................................................... B 1 Appendix B2: Photolog - Cross Sections and Photo Points ........................................................... B2 Appendix B3: Stream Data Tables ................................................................................................. B3 Appendix B4: Stream Cross Sections ........................................................................................... B4 Appendix B5: Stream Longitudinal Profile ................................................................................... B5 Appendix B6: Stream Pebble Counts ............................................................................................ B6 Appendix C: Plan View Sheets Reedy Branch SEPI Engineering Group EEP Project Number 301 Final Report February 2008 Monitoring Year 3 of 5 1.0 PROJECT BACKGROUND 1.1 Proiect Obiectives Reedy Branch is a typical stream within this and surrounding watersheds, exhibiting instability and degradation in response to current and historical land use practices. The main goal of this restoration project was to improve water quality in the Cape Fear River basin. The specific objectives of this project were to: 1. Improve water quality by reducing the sediment load generated by eroding banks and by restoring a riparian buffer; 2. Reestablish stable channel dimension, pattern, and profile; 3. Restore a functioning floodplain; 4. Enhance aquatic and terrestrial habitats in the stream corridor; 5. Assist the landowner to dedicate the entire floodplain as a wildlife area; and, 6. Provide at least one stable cattle crossing across the main channel. 1.2 Proiect Structure, Restoration Tyne, and Approach Overall, Reedy Branch covers approximately 3,155 linear feet of stream. The reach is moderately to highly sinuous as it meanders through a valley length of approximately 2,550 feet. The construction phase of the project included the improvement of bank stability and in-stream feature morphology while saving as much native forest vegetation as possible and preserving or enhancing several small wetlands located adjacent to the channel. In some areas, minor changes to the proposed pattern were made to save large trees or avoid bedrock. The restoration involved construction of a smaller dimension and restoring a stable pattern. Crossvanes, single-arm weirs and existing bedrock all were used to control grade at the tops of riffles. Root wads were used to protect the outside of meander bends. To reduce bank height ratio, vertical banks were laid back to create a bankfull bench and establish a stable growing surface. The pattern of the creek also was adjusted to eliminated some overly-sharp meanders in the existing channel. The narrow confines of the valley required that the new channel cross the existing channel at several locations. These crossing points required clay channel plugs to prevent water from seeping into the old channel. After completion of the restoration, the cattle were fenced out of the entire floodplain. The floodplain was then placed under a conservation easement by the landowner. Since the creek bisects the Kiser farm, two cattle crossings were constructed across the restoration. Table I. Project Mitigation Structure and Objectives Table Reedy Branch/EEP Project Number 301 Project Segment or Mitigation Linear Footage Reach ID Type Approach or Acreage Comment Stationing Reed Branch Restoration PH 3,155 linear feet New channel construction. Note: "P" in the Approach column refers to Priority Level. 1.3 Proiect Location and Setting This project is near Snow Camp, North Carolina in south-central Alamance County. To reach the site from Raleigh, go west on US 64 to Siler City. In Siler City, go north on Martin Luther King Boulevard; the North Carolina Atlas and Gazetteer (DeLorme 1997) labels the road as Snow Camp Road. Continue north toward the community of Snow Camp (approximately 12 miles). Before entering Snow Camp, take Reedy Branch 1 SEPI Engineering Group EEP Number 301 Final Monitoring Report February 2008 Monitoring Year 3 of 5 a right on SR 2358 (Workman Rd). Continue on Workman Road approximately 1 mile then take a right on Quakenbush Road. Continue on Quakenbush Road for approximately 1'h miles to a small road crossing over Reedy Branch. The road crossing is at the downstream end of the project. Reedy Branch extends upstream (south) of Quakenbush Road. Figure 1 shows the location of Reedy Branch. Reedy Branch is a tributary of Cane Creek in the Cape Fear River Basin. The Reedy Branch watershed above the restoration reach drains about 1.6 square miles. The creek starts about one-half mile south of the Alamance and Chatham County line and flows generally North to its confluence with Cane Creek, about 1.6 miles east of Snow Camp, NC. The watershed consists primarily of woodland and farmland. The agriculture in the watershed mainly consists of row crops and cattle grazing. The project is located entirely on property owned by Sam and Deborah Kiser. Cattle pasture and chicken production make up the Kiser Farm surrounding the restoration site. There are four modern chicken houses within sight of the restoration reach with a population of about 500,000 birds. Some of the chicken litter is land applied to the pastures surrounding the restoration site, while some is trucked to nearby farms. The restored stream is enclosed in a moderately dense wooded area and contains large bedrock outcrops as well other sporadic occurrences of bedrock throughout the reach. The site is located in the Carolina Slate Belt, known for shallow soils and high run-off during storm events resulting in very "flashy" flows. The creeks in this region often dry up during the hot summer months. The Monitoring Year 1 performers reported that Reedy Branch had been essentially dry with only standing pools for the entire three years of drought that preceded the restoration. This trend was verified this summer during the most severe drought on North Carolina record, when the flow went subsurface along the entire project reach, with only a couple of standing pools. Reedy Branch 2 SEPI Engineering Group EEP Number 301 Final Monitoring Report February 2008 Monitoring Year 3 of 5 Reedy Branch EEP Number 301 February 2008 SEPI Engineering Group Final Monitoring Report Monitoring Year 3 of 5 1.4 History and Background Historically, cattle had access to all parts of the stream. This resulted in various negative impacts to the stream. The stream had steep banks with frequent erosion, completely trampled aquatic habitat, a heavily browsed riparian zone, several areas of pattern instability, and frequent debris jams. Since completion of this project and fencing in of the floodplain and riparian buffer, cattle have been excluded from the stream the entire valley Table Il. Project Activity and Reporting History Reedy Branch/EEP Project Number 301 Activity or Report Scheduled Completion Data Collection Complete Actual Completion or Deliver Restoration Plan Final Design - 90% Construction November 1, 2003 Temporary S&E mix applied to entire project area November 1, 2003 Permanent seed mix applied to entire project area December 1, 2003 Vegetative Planting January 1, 2003 Mitigation Plan/ As-built (Year 0 Monitoring - baseline) February 2005 August 1, 2005 Repair Work Fall 2004 Repair Work May 1, 2005 Year 1 monitoring May 2005 August 2005 Year 2 monitoring December 2007 June 2006 December 2006 Year 3 monitoring December 2007 November 2007 December 2007 Year 4 monitoring December 2008 Year 5 monitoring December 2009 Year 5+ monitoring "*" Information being acquired and provided by EEP and will be included in the 2008 monitoring report for the site Reedy Branch EEP Number 301 February 2008 SEPI Engineering Group Final Monitoring Report Monitoring Year 3 of 5 Table III. Project Contract Table Reedy Branch/E EP Project Number 301 Ecologic Designer 218-4 Swing Road Mark Taylor Greensboro, NC 27409 336-335-1108 Phillips and Jordan, Inc. Construction Contractor 8245 Chapel Hill Road Cary, NC 27513 919-388-4222 Planting Contractor Seeding Contractor 2006 & 2007 Monitoring SEPI Engineering Group Performers 1025 Wade Avenue Phillip Todd Raleigh, NC 27605 919-789-9977 Stream Monitoring POC Ira Poplar-Jeffers Vegetation Monitoring POC Phil Beach Wetland Monitoring POC NA * Information being acquired and provided by EEP and will be included in the 2008 monitoring report for the site. Table IV. Project Background Table Reedy Branch/EEP Project Number 301 Project County Alamance Drainage Area 1.6 square miles Drainage impervious cover estimate (%) 10% Stream Order Second Physiographic Region Piedmont Ecoregion Carolina Slate Belt Rosgen Classification of As-built C5 Cowardin Classification N/A Dominant soil types Herndon Reference site ID Unknown USGS HUC for Project and Reference 03030002 Haw River NCDWQ Sub-basin for Project and Reference 03-06-04 NCDWQ classification for Project and Reference Any portion of any project segment 303d listed? No Any portion of any project segment upstream of a 303d listed segment? No Reasons for 303d listing or stressor N/A of project easement fenced 100% of project easement demarcated with bollards (if fencing absent N/A * Information being acquired and provided by EEP and will be included in the 2008 monitoring report for the site. Reedy Branch EEP Number 301 February 2008 SEPI Engineering Group Final Monitoring Report Monitoring Year 3 of 5 2.0 PROJECT MONITORING METHODOLOGY 2.1 Vegetation Methodology The following methodology was used for the stem count. The configuration of the vegetation plots was marked out with tape to measure 10 meters by 10 meters (or equivalent to 100 square meters) depending on buffer width. The planted material in the plot was marked with flagging. The targeted vegetation was then identified by species, and a tally of each species was kept and recorded in a field book. 2.2 Stream Methodology The project monitoring for the stream channel included a longitudinal survey, cross-sectional surveys, pebble counts, problem area identification, and photo documentation. These measurements were taken at each reach. The stationing was based on thalweg. The methodology for each portion of the stream monitoring is described in detail below. 2.2.1 Longitudinal Profile and Plan View A longitudinal profile was surveyed with a Nikon DTM-520 Total Station, prism, and a TDS Recon Pocket PC. The heads of features (i.e., riffles, runs, pools, and glides) were surveyed, as well as the point of maximum depth of each pool, boundaries of problem areas, and any other significant slope-breaks or points of interest. At the head of each feature and at the maximum pool depth, the thalweg, water surface, edge of water, left and right bankfull, and left and right top of bank (if different than bankfull) were surveyed. All profile measurements were calculated from this survey, including channel and valley length and length of each feature, water surface slope for the reach and each pool and riffle, bankfull slope, and pool spacing. This survey also was used to draw plan view figures with Microstation v8 (Bentley Systems, Inc., Exton, PA), and all pattern measurements (i.e. meander length, radius of curvature, belt width, meander width ratio, and sinuosity) were measured from the plan view. Stationing was calculated along the thalweg. 2.2.2 Permanent Cross Sections Six permanent cross sections (four riffles and two pools) were surveyed. The beginning and end of each permanent cross section were originally marked with a wooden stake and metal conduit. Cross sections were installed perpendicular to the stream flow. Each survey noted all changes in slope, tops of both banks, left and right bankfull, edges of water, thalweg, and water surface. Before each cross section was surveyed, bankfull level was identified, and a quick bankfull area was calculated by measuring a bankfull depth at 1-foot intervals between the left and right bankfull locations and adding the area of each interval block across the channel. This rough area was then compared to the North Carolina Rural Piedmont Regional Curve-calculated bankfull area to ensure that bankfull was accurately located prior to the survey. The cross sections were then plotted, and Monitoring Year 3 monitoring data was overlain on Monitoring Year 1 and 2 data for comparison. All dimension measurements (i.e. bankfull width, floodprone width, bankfull mean depth, cross sectional area, width-to-depth ratio, entrenchment ratio, bank height ratio, wetted perimeter, and hydraulic radius) were calculated from these plots and compared to the Monitoring Year 1 data. Reedy Branch 6 SEPI Engineering Group EEP Number 301 Final Monitoring Report February 2008 Monitoring Year 3 of 5 2.2.3 Pebble Counts A modified Wolman pebble count (Rosgen 1994), consisting of 50 samples, was conducted at each permanent cross section. The cumulative percentages were graphed, and the D50 and D84 particle sizes were calculated and compared to Monitoring Year 1 and 2 data. 2.3 Photo Documentation Permanent photo points were established during Monitoring Year 1. A set of three photographs (facing upstream, facing downstream, and facing the channel) were taken at each photo point with a digital camera. Two photographs were taken at each cross-section (facing upstream and downstream). A representative photograph of each vegetation plot was taken at the designated corner of the vegetation plot and in the same direction as the Monitoring Year 2 photograph. An arrow was placed on the designated corner of each vegetation plot on the plan view sheets to document the corner and direction of each photograph. Photos were also taken of all significant stream and vegetation problem areas. 3.0 PROJECT CONDITION AND MONITORING RESULTS 3.1 Vegetation Assessment 3.1.1 Soils Data Table V. Preliminary Soil Data Series Max Depth % Clay on K T o OM /o Surface in. Herndon (HdB2) 68 5.0-27.0 0.48 * 0.5-1.0 Herndon (HeC3) 68 27.0-35.0 0.35 * 0.0-0.5 Herndon (HdC2) 68 5.0-27.0 0.48 * 0.5-1.0 Mixed alluvial (Mc) «« High variability of data »» * This information was not available from the Natural Resources Conservation Service (MRCS). 3.1.2 Vegetative Problem Area Plan View Table VI. Ve etative Problem Areas Feature/Issue Station # / Ran a Probable Cause Photo # Invasive/Exotic entire stream reach Japanese stilt grass (Microstegium vimineum); 1 Populations likely remnant from re-construction There is good herbaceous vegetation growth along all of the monitored stream reach. Japanese stilt grass (Microstegium vimineum) has established along the entire stream reach with limited areas where it does not dominate. The vegetation problem area plan view sheets (Appendix C) show the location of the vegetation plots and areas not dominated by Japanese grass. 3.1.3 Stem Counts Overall, the project has decent stem densities, especially with the inclusion of `volunteer' species noted in the plot count table of Appendix A. The stem density goal at Monitoring Year 5 is 260 trees/acre. Vegetation Plot #6 is at 280 trees/acre at Monitoring Year 3 for `identified planted material' with four other plots having stem densities below 260 stems/acre at Monitoring Year 5. These vegetation plots are Reedy Branch 7 SEPI Engineering Group EEP Number 301 Final Monitoring Report February 2008 Monitoring Year 3 of 5 #7, 8, 9 and 10. With the inclusion of `volunteer' species noted in the plot count table of Appendix A, the stems/acre density would not be so `low'. The vegetative plots are shown on the vegetation problem area plan view in Appendix C. It should be noted that there were several species for which several-to-many additional stems were counted within a given plot relative to the Monitoring Year 2 count. These additional stems were assumed to be volunteers and were not included in the survival calculations. The species were Carpinus caroliniana (VP #1, 3 through 5, 11, and 12), Platanus occidentalis (VP #5 and 10), Quercus alba (VP #2 and 3), Quercus phellos (VP #3 and 5), and Ulmus alata (VP #4). In addition, the following species were found in plots but were assumed to be volunteers because they were apparently not found during Monitoring Year 2: Liquidambar styraciua (all plots), Fagus grandifolia (Plot 2), Salix nigra (Plot 2), Quercus phellos (Plot 2), Quercus nigra (Plot 3), Myrica cerifera (Plots 4, 5, 6, 7, 8, and 9), Pinus taeda (Plots 6, 7, 9, 10, and 12), Rhus copallina (Plot 7), Quercus alba (Plot 7), Ulmus alata (Plot 8), Liriodendron tulipifera (Plot 10), and Acer saccharum (Plot 3). 3.2 Stream Assessment Considering the 5 year timeframe of standard mitigation monitoring, restored streams should demonstrate morphologic stability in order to be considered successful. Stability does not equate to an absence of change, but rather to sustainable rates of change or stable patterns of variation. Restored streams often demonstrate some level of initial adjustment in the several months that follow construction and some change/variation subsequent to that is to also be expected. However, the observed change should not indicate a high rate or be unidirectional over time such that a robust trend is evident. If some trend is evident, it should be very modest or indicate migration to another stable form. Examples of the latter include depositional processes resulting in the development of constructive features on the banks and floodplain, such as an inner berm, slight channel narrowing, modest natural levees, and general floodplain deposition. Annual variation is to be expected, but over time this should demonstrate maintenance around some acceptable central tendency while also demonstrating consistency or a reduction in the amplitude of variation. Lastly, all of this must be evaluated in the context of hydrologic events to which the system is exposed over the monitoring period. For channel dimension, cross-sectional overlays and key parameters such as cross-sectional area and the channel's width to depth ratio should demonstrate modest overall change and patterns of variation that are in keeping with above. For the channels' profile, the reach under assessment should not demonstrate any consistent trends in thalweg aggradation or degradation over any significant continuous portion of its length. Over the monitoring period, the profile should also demonstrate the maintenance or development of bedform (facets) more in keeping with reference level diversity and distributions for the stream type in question. It should also provide a meaningful contrast in terms of bedform diversity against the pre- existing condition. Bedform distributions, riffle/pool lengths and slopes will vary, but should do so with maintenance around design/As-built distributions. This requires that the majority of pools are maintained at greater depths with lower water surface slopes and riffles are shallow with greater water surface slopes. Substrate measurements should indicate the progression towards, or the maintenance of, the known distributions from the design phase. In addition to these geomorphic criteria, a minimum of two bankfull events must be documented during separate monitoring years within the five year monitoring period for the monitoring to be considered complete. Table VIII documents all bankfull events recorded since the start of Monitoring Year 1. Reedy Branch EEP Number 301 February 2008 SEPI Engineering Group Final Monitoring Report Monitoring Year 3 of 5 Table VIII. Verification of Bankfull Events - Reed Branch Date of Data Date of Photo # (if Collection Occurrence Method available Several bankfull events resulting from hurricanes noted 2005 2005 in Monitoring Year 1 report. 8/8/2006 Unknown Crest Stage Gauge measurement of approximately 2" on stick (bottom of stick at bkf) Crest Stage Gauge measurement of approximately 6" on 1/11/2007 Unknown stick bottom of stick at bk According to NOAA National Weather Service daily climate data, approximately 1.45" of precipitation fell 6/4/2007 6/3/2007- over the listed two day period. 1" of this fell on 6/3. No Photo. 6/4/200-7 An additional 0.4" fell on 6/5/2007. It was assumed, but not confirmed, that this event resulted in a bankfull flow. 7/16/2007 7/12 & 7/13/2007 Phone conversation with landowner Mr. Sam Kiser). 3.2.1 Longitudinal Profile and Plan View The overall water surface slope has remained consistent since Monitoring Year 1. Riffle length, riffle slope, pool length, and pool spacing have all remained consistent since Monitoring Year 1 with some slight variation observed between Monitoring Years that can probably be attributed to slight differences in survey calls (i.e. human error) during the longitudinal survey. The Monitoring Year 3 thalweg profile appears consistent with Monitoring Year 2 with a some small areas of apparent downcutting or aggradation. However, it appears that several more points were taken during the Monitoring Year 3 survey. This result can probably account for most of the differences observed in the longitudinal profile overlay. In addition, all pattern parameters remain consistent indicating that the stream pattern remained stable since Monitoring Year 2. The plan view overlay remain consistent between monitoring years. The longitudinal profile is found in Appendix and problem area plan views are shown in Appendix C. 3.2.2 Permanent Cross Sections From a review of the cross-sectional survey data between Monitoring Years 1, 2, and 3, it can be concluded that channel dimension has not changed significantly at any cross section. No cross sections were closely associated with any stream problem area. The channel dimension of the project has essentially remained stable since Monitoring Year 1. 3.2.3 Pebble Counts The pebble size class distribution plots show that the stream bed substrate has remained consistent at all cross sections since Monitoring Year 1 with the exception of the substrate at cross section #5. This cross section appears to have experienced a slight fining since Monitoring Year 1. However, this fining is not of any major concern because cross section #5 is located over a pool (i.e., depositional) feature. In contrast, one of the riffle pebble counts at the bottom end of the reach (cross section #6) displayed a coarsening of bed material, a result consistent with the reduction of fine sediment inputs (an objective of this restoration project). One trend noticed in the distribution plots for the pebble counts of cross section #1 and cross section #5 was that the bed material apparently experienced an influx of finer sediments in Monitoring Year 2 and a coarsening back to near Monitoring Year 1 conditions in Monitoring Year 3. This observation may be accounted for by human error during Monitoring Year 2 counts, or there could have been a storm event that deposited fine sediments during Monitoring Year 2, and those sediments were subsequently flushed downstream during Monitoring Year 3. Reedy Branch 9 SEPI Engineering Group EEP Number 301 Final Monitoring Report February 2008 Monitoring Year 3 of 5 a ? b m d °' ? ? A eke o ro m w m ? tz o ? °' 7b ? ?y Ca d n o ? a ? , ? m o ro cn w ?, ? trJ ? w Ftl x `ti o °' o ? "i a? co w m eo A C7 CD m 0 CD T -? GG n(D. ?. b w g o o W loll 1 m to o a co m t3' w d d _ CD 5 w? $ x w 3 uv o Ua X o w m w X F w Fr 5 ? G1 X tN ? d CD A C w j- o a A a. ? o ? o w 'b ? a k R y O ? d c CD a w m ? b C 0 i x - ? d w ? C CL CD 9 W d ----- x a O J N ? w w w w w w w w ?? •° ?, _ _ _ O v, w N O .- G ?C hC U O O W ° ? ` U N O a N J W N .-. 7 ? p 0 0 R ? p w w w, o O x ?? c 00 w 00 w ?a ° ? . 3.2.4 Stream Problem Areas Various areas of aggradation and bank erosion were noted during the problem area inspection. None of these areas were considered of severe status, and erosion and aggradation were limited to a total length of 223 and 293 feet, respectively. However, many erosion areas were located on the outside of meanders, reducing the meander performance rating to 66% (Table XI). It should also be noted that several of the aggradation areas were observed to have pickerelweed (Pontederia cordata) growing in the channel. There were several problems with in-stream structures. Several crossvanes had significant structural problems or were apparently placed incorrectly to adequately dissipate sheer stress on the bank, resulting in nearby bank erosion. The most severe of these areas were at a crossvane (Station 29+88) where the bulk of the stream flow was piping around the left side, and a crossvane 9 (Station 33+08) that has experienced significant back arm scour along the right side. Several rocks of this structure (i.e., crossvane at Station 33+08) have shifted, leaving exposed matting and piping under and around several parts of the structure. In addition, there are several rootwads (e.g., Station 26+55) that appear to have been installed too high on the bank, and several debris jams (e.g., Station 34+73) were noted along the reach that may be of some concern. The list of stream problem areas is located in Appendix B. The problem area plan view sheets are located in Appendix C. Table XI. Categorical Stream Feature Visual Stability Assessment Reed Branch EEP Project No. 301 Feature Initial MY-01 MY-02 MY-03 MY- 04 MY- 05 A. Riffles 66% 71% B. Pools 85% 85% C. Thalwe 88% 93% D. Meanders k U U k 61% 66% E. Bed General n nown n nown 96% 95% F. Bank Condition 95% 96% G. Vanes / J Hooks etc. 74% 91% H. Wads and Boulders 80% 90% 3.3 Photo Documentation Photos taken of the vegetation problem areas and photos of the vegetation plots are in Appendix A. Stream problem area photographs are provided in Appendix B. The photographs taken at the marked photo point locations and at the cross-sections are provided in Appendix B. 4.0 RECOMMENDATIONS AND CONCLUSIONS The overall pattern, dimension, and profile apparently have remained stable through Monitoring Year 3. The channel bed substrate size distributions have remained fairly consistent through Monitoring Year 3, with a coarsening effect observed at the most downstream riffle cross section. There were several problem areas noted along the reach. These areas included some bank erosion, aggradation, and several problems with arm scour, piping, or placement location/angle at crossvanes. Several of these crossvanes were rated severe. There were also several rootwads noted to be placed too high on the bank. Some of the aggradation areas were noted to be associated with pickerelweed growth. Reedy Branch 10 SEPI Engineering Group EEP Number 301 Final Monitoring Report February 2008 Monitoring Year 3 of 5 No bank erosion areas were considered severe, however many areas were located on the outside of meander bends, reducing the overall meander performance rating to 66%. At the end of Monitoring Year 3, it may be concluded that bare root tree growth may be inhibited in some areas by the heavy prevalence of Japanese stilt grass (e.g. Vegetation Plots #7 and 8) with areas of concern at Vegetation Plots #9 and 10. These stem densities represent the `identified planted material' as the inclusion of `volunteer' species would result in an increase in the stem densities for these plots. Overall the average seedling density across the entire project is well above the Monitoring Year 5 goal of 260 stems per acre. REFERENCES DeLorme. 1997. The North Carolina Atlas and Gazateer. Ecologic. February 2003. Reedy Branch Stream Restoration (Design Plans). Ecologic. September 2003. Reedy Branch Stream Restoration Planting Plan (Streamside Revegetation Plan). Ecologic. August 2005. MY] (2005) Reedy Branch Monitoring Report. Harman, W.H., et al. 1999. Bankfull Hydraulic Geometry Relationships for North Carolina Streams. AWRA Wildland Hydrology Symposium Proceedings. Edited by D.S. Olson and J.P. Potyondy. AWRA Summer Synposium. Bozeman, MT. North Carolina Ecosystem Enhancement Program. September 2005. Content, Format and Data Requirements for EEP Monitoring Reports. Rosgen, D.L. 1994. A Classification of Natural River. Catena, Volume 22: 166-169, Elsevier Science, B.V. Amsterdam. SEPI Engineering Group. January 2007. Reedy Branch Final Monitoring Report Year 2 of 5 2006. U.S. Department of Agriculture, Soil Conversation Service. April 1960. Soil Survey Alamance County, North Carolina. U.S. Department of Army, Corps of Engineers. 2003. Stream Mitigation Guidelines. http://www.saw.usace.army.mil/wetlands/Mitigation/stream mitigation.html Reedy Branch 11 SEPI Engineering Group EEP Number 301 Final Monitoring Report February 2008 Monitoring Year 3 of 5 APPENDIX Al PHOTOLOG VEGETATION PROBLEM AREAS APPENDIX Al PHOTOLOG - REEDY BRANCH PROBLEM AREAS (Vegetation) Photo 1. Representative Japanese grass (Microstegium viminium) infestation (Vegetation Plot 9). Japanese grass is growing in the lower right-hand quadrant of the picture. Note how other vegetation has been suppressed where the Japanese grass has taken over. Monitoring Year 3 Appendix Al Photolog - Vegetation Problem Area Page 1 of 1 APPENDIX A2 PHOTOLOG VEGETATION PLOTS APPENDIX A2 PHOTOLOG REEDY BRANCH VEGETATION PLOTS r Ilk x iM #`R YL,4?. L° C". 'k.'iPY I ?f rk 3. 4" emu: Monitoring Year 3 Appendix A2 Photolog - Vegetation Plots Page 1 of 2 Photo 2: Vegetation Plot 2. Photo 1: Vegetation Plot 1. Photo 3: Vegetation Plot 3. Photo 4: Vegetation Plot 4. Photo 5: Vegetation Plot 5. Photo 6: Vegetation Plot 6. Monitoring Year 3 Photolog -Vegetation Plots Appendix A2 Page 2 of 2 t t Photo 7: Vegetation Plot 7. Photo 8: Vegetation Plot 8. Photo 9: Vegetation Plot 9. Photo 10: Vegetation Plot 10. Photo 11: Vegetation Plot 11. Photo 12: Vegetation Plot 12. APPENDIX A3 VEGETATION DATA TABLES O •? O O O O ? O? O O 7 O N N O M ? O 00 W O r ° O O 00 oo O O W O N CT O O o O O O 0 h p Vl 7 h R O M O N M 7 O 00 00 N O ?O M R U _N R _ O N N L a N Vl 7 r- v O M N N D n N O, y N N M V N O O O O a 7 '= U O R M ? O d' N ?O O 7 N L FQ i. O O N CD N L W O A b L 00 N M O N M O N L R Vi u 40 ? N N v? O v? O '" N N s U R U L t? M M l- 000 [l- 000 rr. N N C O O U E U Vl ?p N 7 M O h M O ? co? •p 7 R F M ? M N N ? M O ? M O ? N DD N `D 00 N o0 N P ' O O M N M 00 Do N _ M O ? N a y y U H d l U O N i O U y ? g ? U C ? a O v] U h ? ?] O U .UY Ol U .. U ? Ol ra, U ? 01 a U ? Ol ti U ,S a ? ti b O O F- R in. ?"y V b .? ? O F- R N cn co APPENDIX B I PHOTOLOG STREAM PROBLEM AREAS APPENDIX B1 PHOTOLOG Reedy Creek PROBLEM AREAS view). Reedy Branch Monitoring Year 3 Appendix B1 Photolog - Stream Problem Areas Page 1 of 2 Photo 1: Representative grass aggradation problem area (Station 30+11 along plan Photo 2: Representative grass and pickerelweed aggradation problem area (Station 26+98 along plan view). Photo 4: Representative undercut problem area (Station 30+82 along plan view). Photo 3: Representative bank erosion problem area (Station 35+98 along plan view). Reedy Branch Monitoring Year 3 Appendix B 1 Photolog - Stream Problem Areas Page 2 of 2 Photo 5: Representative problem crossvane (Station 29+88 along plan view). Photo 6: Representative problem rootwad (Station 11+62 along plan view). Photo 7: Representative debris jam (Station 34+73 along plan view). Photo 8: Representative debris jam (35+88 along plan view), scour caused by debris jam (Station 35+98), and resultant aggradation from scour-associated sediment deposition (Station 35+98). APPENDIX B2 PHOTOLOG OF CROSS-SECTIONS AND PHOTO POINTS APPENDIX B2 PHOTOLOG - REEDY BRANCH CROSS-SECTIONS & PHOTOPOINTS Reedy Branch - Monitoring Year 3 Appendix B2 Photolog - Cross Sections & Photopoints (Reedy Branch) Page 1 of 9 Cross-Section 1: Looking Downstream Cross-Section 1: Looking Upstream Cross-Section 2: Looking Downstream Cross-Section 2: Looking Upstream Cross-Section 3: Looking Downstream Cross-Section 3: Looking Upstream No photograph available. Cross-Section 5: Looking Downstream 4 Reedy Branch - Monitoring Year 3 Photolog - Cross Sections & Photopoints (Reedy Branch) No photograph available. Cross-Section 5: Looking Upstream Appendix B2 Page 2 of 9 Cross-Section 4: Looking Downstream Cross-Section 4: Looking Upstream Cross-Section 6: Looking Downstream Cross-Section 6: Looking Upstream E ( t f Y f?'b Y 1 { qy F ?3 kj? I Y?. L .pbp'44 1 3' 9 d'i.? g? jr r? n y ['Ct a?? ?Y,*' ??pirsC Photo point 5 * 'A y k i? d a? 9' g Reedy Branch - Monitoring Year 3 Appendix B2 Photolog - Cross Sections & Photopoints (Reedy Branch) Page 3 of 9 Photo point 1 Photo point 2 Photo point 3 Photo point 4 Photo point 6 S 6f. ,g Reedy Branch - Monitoring Year 3 Appendix B2 Photolog - Cross Sections & Photopoints (Reedy Branch) Page 4 of 9 ? zF 1 d Y < ?f a J ss?, .: bK ? Y` Photo point 9 Photo point 8 Photo point 11 Photo point 10 Photo point 12 Photo point 13 Y fw ? A Photo point 17 fy Photo point 14 i r. 0?z7 c i ?' t Reedy Branch - Monitoring Year 3 Appendix B2 Photolog - Cross Sections & Photopoints (Reedy Branch) Page 5 of 9 Photo point 15 Photo point 16 Photo point 18 sr ? d y: ?yy ? . 1, t -'TCP? ! ??+jyYt '? t F) i.2 ? T ? •. ? ?y?.lNN Reedy Branch - Monitoring Year 3 Appendix B2 Photolog - Cross Sections & Photopoints (Reedy Branch) Page 6 of 9 Photo point 20 Photo point 19 Photo point 21 Photo point 22 Photo point 23 Photo point 24 Reedy Branch - Monitoring Year 3 Appendix B2 Photolog - Cross Sections & Photopoints (Reedy Branch) Page 7 of 9 Photo point 25 Photo point 26 Photo point 27 Photo point 28 Photo point 29 Photo point 30 C?` y y h ry s t r R ? ?w'.. pfia }'fib Njr ? ??+ .??A' J i ?''? ?'? ,?•?''° a Kra w tick sc rd , may' r. ? r s 'q f 1 4 ...? x a? Kr- Reedy Branch - Monitoring Year 3 Photolog - Cross Sections & Photopoints (Reedy Branch) Photo point 32 6 v'..pa3 +J _i s, x rib Photo point 36 . trb r } fi} xY { Appendix B2 Page 8 of 9 Photo point 31 Photo point 33 Photo point 34 Photo point 35 Reedy Branch - Monitoring Year 3 Appendix B2 Photolog - Cross Sections & Photopoints (Reedy Branch) Page 9 of 9 Photo point 37 APPENDIX B3 STREAM DATA TABLES Reedy Branch Appendix B3 Table B2. Visual Morphological Stability Assessment Reed Branch Feature Category Metric (per As-built and reference baselines) (#Stable) Number Performing as Intended Total Number per As-built Total Number / feet in unstable state % Performing In Stable Condition Feature Performance Mean or Total A. Riffles 1. Present 21 21 NA 100% 2. Armor stable 13 21 NA 62% 3. Facet grade appears stable 13 21 NA 62% 4. Minimal evidence of embedding/fining 13 21 NA 62% 5. Length appropriate 15 21 NA 71% 71% B. Pools 1. Present 24 24 NA 100% 2. Sufficiently deep 24 24 NA 100% 3. Length appropriate 13 24 NA 54% 85% C. Thalweg 1. Upstream of meander bend (runrnflection) centering 14 14 NA 100% 2. Downstream of meander (glide/inflection) centering 12 14 NA 86% 93°% D. Meanders 1. Outer bend in state of limited/controlled erosion 20 29 NA 69% 2. Of those eroding, # w/concomitant point bar formation 0 9 NA 0% 3. Apparent Rc within specifications* 28 29 NA 97% 4. Sufficient floodplain access and relief 29 29 NA 100% 66% E. Bed General 1. General channel bed aggradation areas (bar formation) NA NA 15/293 91% 1 2. Channel bed degradation - areas of increasing down cutting or head cuttin NA NA 0/0 100% 95% F. Bank Condition 1. Actively eroding, wasting, or slumping bank NA NA 14/223 96% 96% G. Vanes / J Hooks 1. Free of back or arm scour 21 23 NA 91% 2. Height appropriate 23 23 NA 100% 3. Angle and geometry appear appropriate 20 23 NA 87% 4. Free of piping or other structural failures 20 23 NA 87% 91% H. Wads and Boulders 1. Free of scour 28 30 NA 93% 1 2. Footing stable 26 30 NA 87% 90% - --• •- r...?...,.. ••- •as? ••-, ..,o?.- % . cm < - - cur -rnpanson. L M C co ? 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W 98+01 aueessOJ:) e 6 - 6S+01 uinnoijeu'app ool ipnq lauu uoisuawip algels a of qo 9£+01 (sseJS) uo!lupuJSSy Jagwnu ologd asnea pal3adsnS saagwnu u0!luls anssl aJniuag (100 1340.td dgg) y3uuJg 6paag suaaywalgoJdweaJlS •Xalqu.l APPENDIX B4 STREAM CROSS-SECTIONS O N CO L L L L M i h E. U ? 0 o a ? rA v rA U rA 0 U - . - - - - - - - - - J _ - - - - - - - J - .. - .. . . . . . . . . . . . . . . . . . . . . . . . --------------------------- -------------------------- - ------------------------- ------------ ------------------ . . . . . _ . . . . . r . . . . . . . . .?- . . . . . . . . . . ------------ - ---------------------------------------------- ------------ ------ - ------ ---'----- ----- •---------- ----• 'I --------- -------- ------ m •---------- ---- m - '?---------------------------- - i ------- ----------- - - - - - - - - - - - --------- --------------------------- - - ------------------------------ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - • -------- ----------'------------'------------'----------- 1 . . . . . . . . . . . . . . . . . . . . . . . - - - - . . . . . . . . - - - - . . . . LO M N 00 00 W 00 Ln LO LO LO (}}) U014CA013 co LO O 00 O 00 O r Ln O CD LO LO OA Lf) M O M LO N O N LO O T U') O O 00 U*) N M L L- m m a) a) M N L O O a 04 L d m O = y d O ? N v y N O U N N O L U O r - ------------------------- ---------- ---------- ----------- - - - .... ; . ..... y..y, . . . . . . . . ; . . - - - - - - ; . . . . . . . . ; . . . . . . . . -.. ; ........ ........ ........ ; ........ ........ - - . _ .. , . ....... --- . . . . . . . . . . . . . . . . ' . . . . . . . ' . . t 1 . 1 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ------- -----; -------- -------- ---- 1c'i I --------? ---- -- ------------------- --------- ---------------------------------- - --?-- --? - - - - - - - - -------- t- O U O U O C (0 3 m ca 70 co a? co O LO LO O U') LO Nt O d L M oA M LO N O N O LO O M ? ? ? ? r LO LO LO LO u') LO LO (4 aaf uO'nv")3; N M L L- m m m am M ad N L ? t ? cl) M M L O Co O 4) (D O CO ?IX ?O IX ^ OL N U N O L U L . . . . . J . . . . . . . . . , . . . . . . . . ' . . . . . . . . ,_ . . . . . . . . ' .Z. ' ..............................' ........ - - - - - - - - ----- ? - - - - - - - - -------- + . . . . . . . . . - . . ' . . , . . . . . . . . . . . . . . . . r . . . . . . . 7 . . . . . . . . . -V . . , . . . . . . . . , . . . . . , . . . . . . . . O O LO LO O LO LO I'll O ,It In M o? d O A LO N N U O O U O C M co ca cz CD m 00 rl- (D LO 't * u) LO LO LO LC) LLB L! ) oaaf) uouv"jg; O N LO O T Ln O M N ? L ? NN ? LPL r m O O O d C1 N in o W U N O L U ? I- ? ti LO ? U-) LO LO (3aaf) UOUVAOJ_T Ce) U*) LO LO M O OD LO ti O ti O O O L(? dd d O A LO M O M N O N LO O T LO -+ O N ti LO O N M L L L L M r to ^ L G O d }tea ?rLO M _ M ? mL 0 O > r w ? N 4) O Cl) U N O L U - - - - - - - - - -- - - - - ------ ------ --- ---- ----- ------------ ----- ----- ------ ------ ------------- --- ; ----; --- ----------- --- -- -- ? ----- -- ----------- ------ ;---- --- --- --- ;- ?- - ---- , --- --- --- --- --.... ..---. ---- ---- ----- - -- ----- ---- ' ;i ' ; , ; ' ------ '.. -..* ------ --------- ... ..........r ....; ----------- ...... ----- .... ------------- r.... ... ti ? ? It I- LO LO LO LO U') LO LO LO (3aaf) u0,14rona3; CY) 00 1- (.0 (D LO LO LO O O T O O LO W OM 00 U') 1 _ O I- LO O O Loz LO L O 'IT LO co O M LO N O N O LO O O LO N M L L (6 m (1) N --------- --------- ---------- ---------- ---------- --------- M 06 N L m d t S V M d m C O 0 ? V = d N O N O N U N O L U U') 'IT O LO M O M N o? 4- O A N LO vl- O 0 N U _N O U O C O c? 3 ca ms a N ? i ° ? LO L (.Iaaf) uOUVA-Ij; Appendix B4 Field Crew: IPJ and PDB Stream Reach: Reedy Branch Drainage Area: 1.6 mil Date: Jun-07 Monitoring Year 3 NOTES Bankfull/Top of Bank Hydraulic Geometry Width Depth Area (Feet) (Feet) (Sq. Ft.) 0.0 0.0 0.0 1.4 0.1 0.0 1.2 0.1 0.1 2.6 0.5 0.7 2.4 1.0 1.8 0.9 1.0 1.0 BKF = 582.91 0.6 1.0 0.6 1.4 1.6 1.9 1.5 2.4 3.1 0.7 2.7 1.7 0.7 2.8 1.8 0.6 2.8 1.6 0.5 2.8 1.5 LEW 0.6 2.4 1.6 L Bank Toe 0.9 1.6 1.8 Thalweg 1.4 0.9 1.8 2.3 0.5 1.5 R Bank Toe 1.9 0.2 0.6 REW 1.1 0.0 0.1 SUMMARY DATA A(BKF) 23.2 W(BKF) 22.8 Max d 2.8 Mean d 1.0 Cross Section #1 Riffle 585 584 . ................. ............................................. :..................---, ... .._ ...... w 583 ...- -_. ... ..__ _ Bankfull .... _. ... ... _... ... 0 0 582 -- - - - . .. --- --- ... - - w 581 •-• ... ..... .........._... .........._. ................... ._. .... .._. ... ... .... .............. 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 Distance (feet) STATION ELEVATION Appendix B4 Field Crew: IPJ and PDB Stream Reach: Reedy Branch Drainage Area: 1.6 mil Date: Nov-07 Monitoring Year 3 NOTES BankfulllTop of Bank Hydraulic Geometry Width Depth Area (Feet) (Feet) (Sq. Ft.) 0.0 0.0 0.0 1.9 0.3 0.3 5.1 1.8 5.4 6.8 3.3 17.2 3.3 3.0 10.4 1.1 2.4 2.9 0.4 1.5 0.8 4.4 0.0 3.2 23.0 40.3 BKF = 577.61 TOTALS Thalweg SUMMARY DATA R Bank Toe A(BKF) 40.3 REW W(BKF) 23.0 Max d 3.3 Mean d 1.7 Cross Section #2 Pool 581 580 ..... ---- ..... ...... ..... ...... .... ..... ..... ....- ---- --------------- 579 .......:........ . .............................................--•----....:............... ..... .. ....- 578 --.. .. -- -- ...... _.?rllrfslL..-.- ..... ...... - - - - - - 577 . . ...... .. . • -.... ..... ..... ..... ...... ..... ..... ..... ----- a w 576 ..... ..... ..... ---- ...... ...... ... ..-- ---- ..... ..... ..... ........ ' ----- .................... .................. ......: = :.......:....... ..... ..... .....- 574 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 Distance (feet) STATION ELEVATION Appendix B4 Field Grew: IPJ and PDB Stream Reach: Reedy Branch Drainage Area: 1.6 mil Date: Nov-07 Monitoring Year 3 NOTES BankfulllTop of Bank Hydraulic Geometry Width Depth Area (Feet) (Feet) (Sq. Ft.) 0.0 0.0 0.0 1.2 0.2 0.1 BKF = 577.49 1.9 0.3 0.4 2.0 0.6 0.9 2.2 1.3 2.1 1.4 1.9 2.2 1.4 2.4 3.0 0.3 2.4 0.7 L Bank Toe 0.6 2.4 1.6 Thalweg 0.6 2.4 1.6 1.3 1.9 2.9 R Bank Toe 1.0 1.3 1.6 0.7 0.5 0.7 1.4 0.0 0.4 R Top of Bank SUMMARY DATA A(BKF) 18.0 W(BKF) 16.2 Max d 2.4 Mean d 1.1 Cross Section #3 Riffle 580 579 ..... ................................................:..........:......................................... ......- ... 578 .... ... .. ....... ....... ...... ....... ....... ..... .....-. .----- ------ ------ _ _ _ Bankfull 577 .... ... ....... ....... ....... W 576 .... ................................................ ;.. .......;.... .....;........................... ....... ....... 575 0 5 10 15 20 25 30 35 40 45 50 55 60 Distance (feet) STATION ELEVATION Appendix B4 NOTES BKF = 575.61 LEW Thalweg REW TOTALS Bankfull/Top of Bank Hydraulic Geometry Width Depth Area (Feet) (Feet) (Sq. Ft.) 0.0 0.0 0.0 2.5 0.2 0.2 2.1 0.7 1.0 1.4 1.3 1.4 1.0 2.1 1.8 3.6 2.8 8.8 0.5 2.8 1.3 0.4 2.9 1.3 0.3 2.8 0.9 0.3 2.7 1.0 0.6 2.1 1.4 4.3 0.5 5.4 1.3 0.2 0.4 0.3 0.0 0.0 18.8 25.0 R Top of Bank SUMMARY DATA A(BKF) 25.0 W(BKF) 18.8 Max d 2.9 *Elevations for Year 3 adjusted by -1.03 ft for Mean d 1.3 comparison with Monitoring Year 0 elevations. Cross Section #4 Riffle 578 577 576 w c 575 574 w 573 572 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 Distance (feet) :. ... .:.............. •--.........;.......:._____ . .... Bankful I .... ..... --- .....;..... ... --.... .... ..• ----- .... Field Crew: IPJ and PDB Stream Reach: Reedy Branch Drainage Area: 1.6 mil Date: Nov-07 Monitoring Year 3 STATION ELEVATION* Appendix B4 Field Crew: IPJ and PDB Stream Reach: Reedy Branch Drainage Area: 1.6 mil Date: Nov-07 Monitoring Year 3 STATION ELEVATION* NOTES BankfulllTop of Bank Hydraulic Geometry Width Depth Area (Feet) (Feet) (Sq. Ft.) 0.0 0.0 0.0 0.5 0.1 0.0 L Top of Bank 2.3 1.1 1.5 1.7 2.7 3.1 BKF = 572.81 0.5 2.9 1.5 1.3 3.6 4.3 1.0 3.6 3.5 L Bank Toe 0.7 3.8 2.4 LEW 1.4 3.9 5.5 0.7 3.9 2.7 1.2 3.6 4.7 1.1 2.9 3.5 0.2 2.9 0.7 Thalweg 0.4 1.8 0.9 0.9 1.6 1.5 REW 1.4 0.6 1.6 R Bank Toe 1.5 0.4 0.8 0.7 0.0 0.1 TOTALS 17.5 387 SUMMARY DATA A(BKF) 38.4 R Top of Bank W(BKF) 17.5 Max d 3.9 Mean d 2.2 Cross Section #5 Pool 576 575 ...--;-• ..........------------ •------ ...... .. . ................. ............ ,...... ....... ,...... ....... ?------ ............. ...... 574 -- .. .. ---- -- ... -- °' ... ... ... ... 573 Bankfull -v w _ - - - - - - - 0 572 ;-----; ...... .;--........ .. > u 571 •- -- ... -.. -- -- -- - -- -- - .. .. .. ... _ w 570 ... ... .... ... ... ... ... ... .. .. ... ... ... ... .-. ... 569 ................... . .... .... . .... ...... ....... ...... - -- -- -- -- -- -- 568 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 Distance (feet) comparison with Year 0 elevations. Appendix 134 Field Grew: IPJ and PDS Stream Reach: Reedy Branch Drainage Area: 1.6 mil Date: Nov-07 Monitoring Year 3 STATION ELEVATION* NOTES BKF = 569.97 L Bank Toe LEW Thalweg REW R Top of Bank TOTALS BankfulUTop of Bank Hydraulic Geometry Width Depth Area (Feet) (Feet) (Sq. Ft.) 0.0 0.0 0.0 1.5 0.2 0.2 1.7 0.4 0.5 2.2 0.9 1.5 2.2 1.5 2.7 2.0 2.2 3.7 0.7 2.7 1.8 0.4 2.8 1.1 0.7 2.8 1.8 0.5 2.9 1.3 0.5 2.9 1.4 0.9 2.9 2.6 0.4 2.8 1.2 0.4 2.5 1.1 0.5 1.6 1.1 1.4 1.3 2.0 1.1 1.3 1.4 3.8 0.0 2.4 20.9 27.9 SUMMARY DATA A(BKF) 27.9 W(BKF) 20.9 Max d 2.9 Mean d 1.3 Cross Section #6 Riffle 572 571 ..... .......:......................................... :............;-.................... . ............. u 570 Bankfull ......... ....... J.r . .,.w...r.r.r.. rrr. .......... ........- .......... c 569 d w 568 .........................:.............:....... ................... ........................... ........................... : 6 5 7 0 5 10 15 20 25 30 35 40 45 Distance (feet) comparison with Year 2 elevations. APPENDIX B5 STREAM LONGITUDINAL PROFILE LO co X C a? a Q 009L - . . ---- . . . --- . . . --- . . . ---- . . - . . . . _ - - - - --- - --- --- -- _ - _ . . --- . . .. ... ... .-. ._ ... ... ... . .. ... ... .. ... -- -_ __ - - 099E . . - - - - - - - - _ - - - - - - - - _ - . . - - - - - _ _ - - - - - _ _ - a . - _ - - - - - - - - - - . . . . - . . - - - - - . - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - . . . . . . . . - - - - - - - . - - - - - - - . - - - - - - - - - - - - - - - - - - - --- - _ . . - a - -- - - - - - - - - - - - -- - - - - . - - 009 L - --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---- --- --- --- --- -- --- -- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - _ _ - - - - - - - _ - - . - . - _ _ - - . . . . . 09bL -- - - - - - - - - -' -' - - - - - - - - -- - - - - -- - OOVL --- --- --- --- ---- --- --- --- --- --- --- --- ----- --- --- --- ---- ---- --- --- -- --- --- --- ---- - - - .. - -- - - - - . - -.- - - - - -t - - - - - --- - -- - -- L OW -- -- - - - --- - -._- --- - - - --- - - ---- - - - --- - - - --- - - - --- - - --- - - - --- - - - --- - - - - - 4 - - - - - -- - - - --- - - --- - - - --- - - - --- - - - - -- - - - - - - - - - - - - -- --- --- --- --- --- --- -- --- - --- --- --- -- --- -- --- --- --- -- -• -- --- -- --- --- - --- -- --- --- --- -- M -- Y - ONL --- --- --- - - -- - - - -- - - - -- - - - --- - -- -- - - - --- - -- - - - --- - - - --- - - - --- - - -- L -- -- - -- '- --- --- --- -- --- - --- -- --- --- - 4 --- - -- - - -- -- --- - - --- --- --- - -- - - - - - -- --- -`4 -- --- - - - -- --- - - - - - - --- - -- - - - --- -- - 04ZL cM >- -- - - - - - - - - - - - - -- - - - - - - - - - - -- - - - - --a - - - - - - - - - - - -- - - - - - - - . 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-- - - - - -- - - - - - - - - - - - - - - _ - - - -- 09E = Co =3 Co - --- W --- --- -- - - - - - - - - - -- - - - - - - - - - - - - - - - -- - - - - - - - - - - - - -- - - - - - - - - - Y - - - - - - - - . - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - . 1 - - - - - - - - - - - - - - - - - - - O) co -- --- --- - --- _ a a - - --- --- -- --- --- - -- -- --- --- --- - - - - - - - -- - -- OOE N co N - - -- - - - - - - - - - - - - - - - - - - cu 0) co -- --- --- --- -- -- - - - - - - - - - - --- --- -- o9z --- --- - - - --- --- -- . -:- -: - - - - - _ - - - - - -: - - - -- - -- - -- --- - - - -- -- --- --- -y - ---- --- --- --- -- -- --- --- -- - - ---- --- -- -- --- --- --- - --- --- --- --- --- - OOZ -- --- --- --- --- --- --+ --- --: --- --- --- --- --- -- --- - -- --- - - -- - --- - --- - --- - --- - --- - --- - --- - --- - --- - --- - --- - --- -- --- --- --- --- a --- - -- ---- - --- --- --- --- --- --- -- -- --- -- -- - --- - --- --- --- --- --- -- --- -- --- --- --- --- --- -- --- -- --- --- --- --- --- --- --- --- --- -- -- 04L --- --- --- --- -- - - - - - --- -- - - - - - - - --- --- - - - - -- - - -- -- - -- -- - - - - - --- --- - ? -4 - -- -- - -- -- - - - -- -- -- - -- OOL -- --- --- --- --- --- --- - -- - F-- --- --- --- --- --- -- --- --- -- -- -- --- - --- --- --- --- -- -- --- -- --- --- --- --- --- --- -- -- --- --- --- --- --- --- -- -- -- - - - --- - - - --- - - - - --- - - - - - . --- f .. --- - - - --- - - - - - -- - - - --- --- - - - - -- -- --- --- - - - --- --- - - --- --- - - - --- -- --- --- --- --- --- --- --- --- --- -- --- --- --- --- --- -- -- -- 04 - --- - --- -a --- - --- -- --- - J - r - - - --- - -- - --- - --- - --- -- --- --- --- - - -- . - - - - 0 lf 0 ') 3 V 0 0 Cl) 00 N c o O 0 0 0 r- ) - O ti D N rl - ( r- O - t ti o ti M I. - N rl - t( ) t! ) to t( ) t o L O t o t o (C ) L O ( n ( n ( n t o (;0 a}) U 014BA 013 096E 006£ ----- ----- ---- ----- ----- ---- ----- ----- ---- ----- ----- ---- ----- ---- --- ----- ---- ---- ----- ---- ---- ----- ---- ----- ----- ---- ----- ----- ---- ----- ---- ---- - ----- ---- 090E ---- ----- ---- ---- ----- ---- ----- ----- ---- ---- ----- ---- ----- ---- ---- ----- --- ---- 000£ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - M ---- ---- ----- ----- ---- ---- ---- ---- ----- ----- ---- ---- ---- ----- ----- ----- ---- ---- ---- ---- ----- ----- ---- ---- ----- ----- -- - ---- ---- ---- -- - ---- ---- ---- 096Z N } ---- ----- ---- ---- ----- ---- ----- ----- ---- ---- ----- ---- ----- --- M ---- ----- ---- ---- ----- ---- ----- ---- ---- ----- ----- ---- ----- --- - 006Z co - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - O 098Z Q- O F- - - - - - - - - ---- ---- - - - - - -- --- ---- N 008Z J ---- ----- ---- ---- ----- ---- ----- ----- ---- ----- ----- - - --- --- ---- --- ---- • 09LZ ----- -- ---- ----- -- M OOLZ ca ---- ----- ---- ---- ----- --- ----- ---- ----- ----- ---- ----- ---- -- ---- ---- N ---- - ----- ---- - ---- - ----- - --- - ----- - ----- ---- - - --- ---- ----- ---- ---- - -- -- - ---- - -- ---- - ---- - ---- - } 0992 CU ---- ----- ---- ---- --- ---- ----- ----- ---- Y Q) } -- ---- ----- ----- ---- ----- ----- ---- ----- - 009Z m ---- ---- ----- ----- ---- ---- ---- ---- ----- ----- ---- ---- ----- ----- -- ----- ---- ---- ----- ----- ----- ----- ---- ---- -- -- --- --- -- - ----- - --- ----- ----- ---- ---- +r N (u O 099Z F - N ---- ---- ---- m IL I 009Z M ---- ----- ---- - ---- - ----- ---- - ----- - -- - ---- ---- ---- - ----- -- - - - -- ---- - ---- - ----- ---- ---- co 09bZ V- L i CC t --- ----- ---- ---- O O } L OObZ } - ---- ---- ---- ---- .. i --- ----- ---- ----- ----- ---- ----- ----- ---- -- d } m ---- ----- ---- ---- ---- ---- ----- ----- ---- ----- ----- --- - -- - -- ---- ----- ---- ---- 09EZ O m 3 0 - a• oOEZ O a _ o9zz ---- ----- -- - ----- ----- ---- ----- ----- ---- ----- ----- --- - - ----- ---- ---- ---- ---- c•7 3 oOZZ co .? } M L a) J 0962 m >- ---- ----- --- ''nom V/ O Oo6Z L ---- ---- ----- ----- ---- ---- ---- ---- ----- ----- ---- ---- ----- -- ----- ---- ----- ----- - -- ----- ---- ----- ----- ---- Co L --- ----- ---- ----- ----- - - -- ----- ---- ----- ----- ---- r ---- ----- ---- ---- ----- ---- ----- ----- ---- ----- ---- - ---- ----- ---- ----- ----- ---- 0902 c OOOZ L - - ---- ---- ---- - - ---- - --- •--- ---- ---- ---- (B O } 0966 Y C N cu i m -- ----- ---- - -- -- ----- ---- - - - -- ---- ----- ---- ----- ---- ---- -- - 0066 a) O Q N ?-- 0986 ---- ---- ---- ---- ----- ---- ---- ----- ---- - ---- -- ----- ----- ---- ----- ---- ---- (B ---- ---- ---- ---- ----- ---- ---- ----- ---- - --- -- ----- ----- ----- ----- --- ---- - ----- ---- ---- L 0086 ---- ----- ---- ---- ----- ---- ---- ----- ---- ---- --- ---- -- T • --- ----- ---- ----- ----- ---- ---- ----- ---- ----- ----- ---- ---- ----- ---- --- -- ---- ----- ----- ---- ----- ----- ---- 09L6 ---- ----- ---- --- - ---- ---- ----- ----- ---- ----- ----- ---- ---- ----- -- - ----- ----- ---- ---- ----- ---- - - -- - ----- ---- ----- ---- ----- ----- ---- OOL6 -- - ---- ---- ----- ----- ---- ---- ----- - -- ----- ---- ----- ---- ----- ----- ---- - 0996 - ---- -- - ---- ---- ----- ----- -- -- --- --- --- --- -- ---- - ----- ---- ---- ---- ---- ---- 0096 00 (O LO ! V M N O 0 ) t L LO LO L LO ( ;aa;) u0 14enal3 - - - - - - - - - - - - - - - - - - - - - - - - _ - - - - _ - - - - - _ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - _ -- - ---- -- -- -- -- •- -- -- - - -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ---- -- -- -- -- -- ---- ---- ---- - -- ---- ---- ---- ---- ---- ---- ---- --- -- ---- ---- --- ---- ---- ---- ---- --- --- - - - - ---- ---- ---- - - - -- ---- ---- - - ---- - - - - -- -- - - - - - - - - - - - - - - - - - - - - - -- - - ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- - - - - - - - - - - - - - - - - - - - - ---- - --- a - - - - - - - - - - - - - - - - - - - - - - - - - - - . . . . . . . . . . . . . . . . . . . . . . • - ---- ---- ---- ---- ---- ---- - - - - - - - - - - - --- ---- ---- - -- - ---- ---- ---- - - - -- - - - - - - - - - -- - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ---- ---- - -- - - -- - - - - - - - - - - - ---- -- - --- --- --- -- -- - --- -- --- --- -- J 1 APPENDIX B6 STREAM PEBBLE COUNTS Reedy Branch Stream Monitoring Year 3: 2007 Alamance County, NC PEBBLE COUNT :e: Reedy Bra rty: IPJ and PI Inches Particle Millimeters Silt/Clay < 0.062 S/C Very Fine .062-.125 Fine .125-.25 s Medium .25-.50 NN Coarse .50-1.0 D .16-.22 Fine 4-5.7 .22-.31 Fine 5.7-8 G 44 .31- Medium 8-11.3 R . .44-.63 Medium 11.3-16 A .63-.89 Coarse 16-22.6 V E S-e SEPI ENGINEERING GROUP 9 3 1 7 2 9 TOT# 1 3 7 .89-1.26 Coarse 22.6-32 L 4 1.26-1.77 Very Coarse 32-45 1 1.77-2.5 Very Coarse 45-64 2.5-3.5 Small 64-90 2 3.5-5.0 Small 90-128 COBBLE 5.0-7.1 Large 128-180 7.1-10.1 Large 180-256 10.1-14.3 Small 256-362 14.3-20 Small 362-512 20-40 Medium 512-1024 BOULDER 40-80 Larqe 1024-2048 ITEM % % CUR 7 13% 13% 5 9% 22% 9 17% 39% 3 6% 44% 1 2% 46% 7 13% 59% 0 0% 59% 2 4% 63% 2 4% 67% 1 2% 69% 3 6% 74% 7 13% 87% 4 7% 94% 1 2% 96% 0 0% 96% 2 4% 100% 0 0% 100% 0 0% 100% 0 0% 100% 0 0% 100% 0 0% 100% 0 0% 100% 0 0% 100% Riffle Pebble Count, Cross Section #1 100% 90% C 80% H 70% °5 60% LL 50% c 40% v 30% a 20% 10% 0% 0, ------------- I Particle Size (mm) F Cumulative Percent (Year 1) ? Percent Item (Year 1) Cumulative Percent (Year 2 )K Percent Item ((Year 2 Cumulative Percent (Year 3 • Percent Item Year 2 0.1 1 10 100 1000 10000 G:\Environmental\EN06.004 - EEP Monitoring 5 sites\2007 - Reedy Branch\Data\Reedy Pebbles Reedy Branch Stream Monitoring Year 3: 2007 Alamance County, NC PEBBLE COUNT Site: Reedy Branch -eSEPI Party: IPJ and PDB ENGINEERING GROUP Date: 10/23/2007 Cross-Section 2 Inches Particle Millimeters (Pool) TOT# ITEM % % CUM Silt/Clay < 0.062 S/C 11 11 20% 20% Very Fine .062-.125 7 7 13% 32% Fine .125-.25 s 14 14 25% 57% Medium .25-.50 N 9 9 16% 73% Coarse .50-1.0 p 7 7 13% 86% .04-.08 Ve Coarse 1.0-2 7 7 13% 987/7 .08-.16 Very Fine 2.0-4.0 0 0% 98% .16-.22 Fine 4-5.7 0 0% 98% .22-.31 Fine 5.7-8 R 0 0% 98% .31-.44 Medium 8-11.3 0 0% 98% .44-.63 Medium 11.3-16 A 0 0% 98% .63-.89 Coarse 16-22.6 V 0 0% 98% .89-1.26 Coarse 22.6-32 E 0 0% 98% 1.26-1.77 Very Coarse 32-45 L 0 0% 98% 1.77-2.5 Very Coarse 45-64 0 0% 98% 2.5-3.5 Small 64-90 0 0% 98% 3.5-5.0 Small 90-128 COBBLE 0 6% 98% 5.0-7.1 Large 128-180 1 1 26/6 100% 7.1-10.1 Large 180-256 0 0% 100% 10.1-14.3 Small 256-362 0 0% 165% 14.3-20 Small 362-512 0 0% 100% 20-40 Medium 512-1024 BOULDER 0 0% 100% 40-80 Large 1024-2048 0 0% 100% Bedrock BDRK 0 0% 100% 56 100% 100% Pool Pebble Count, Cross Section #2 100% 90% co 80% F? 70% m 60% 50% c 40% 30% d 20% 10% 0% Particle Size (mm) --* Cumulative Percent (Year 2) x Percent Item (Year 2) -* Cumulative Percent (Year 3) • Percent Item (Year 3) G:\Environmental\EN06.004 - EEP Monitoring 5 sites\2007 - Reedy Branch\Data\Reedy Pebbles 0.01 0.1 1 10 100 1000 10000 Reedy Branch Stream Monitoring Year 3: 2007 Alamance County, NC PEBBLE COUNT Site: Reedy Branch -eSEPI Party: IPJ and PDB S ENGINEERING GROUP Inches Particle Millimeters Silt/Clay < 0.062 S/C Very Fine .062-.125 Fine .125-.25 Medium .25-.50 CA Coarse .50-1.0 .04-.08 Very Coarse 1.0-2 .08-.16 Very Fine 2.0-4.0 .16-.22 Fine 4-5.7 .22-.31 Fine 5.7-8 G .31-.44 Medium 8-11.3 R .44-.63 Medium 11.3-16 A .63-.89 Coarse 16-22.6 V E TOT# I ITEM %I % CUM 0% 98% 0% 98% 0% 98% 0% 98% 0% 98% nog qR°i 1 1 2% 100% 0 0% 100% 0 0% 100% .89-1.26 Coarse 22.6-32 0 0% 100% 1.26-1.77 Very Coarse 32-45 L 0 0% 100% 1.77-2.5 Very Coarse 45-64 0 0% 100% 2.5-3.5 Small 64-90 0 0% 1000 3.5-5.0 Small 90-128 COBBLE 0 0% 100% 5.0-7.1 Large 128-180 0 0% 100% 7.1-10.1 Large 180-256 0 0% 100% 10.1-14.3 Small 256-362 0 0% 100% 14.3-20 Small 362-512 0 0% 100% 20-40 Medium 512-1024 BOULDER 0 0% 100% Riffle Pebble Count, Cross Section #3 100% r 80% H c 60% LL c 40% U a 20% 0% ---777 -7777?1 7 111 1 '1 IXI i)KI i ?i!il iii......, 0.01 0.1 1 10 100 1000 10000 Particle Size (mm) f Cumulative Percent (Year 2) xc Percent Item (Year 2) - Cumulative Percent (Year 3) • Percent Item (Year 3) G:\Environmental\EN06.004 - EEP Monitoring 5 sites\2007 - Reedy Branch\Data\Reedy Pebbles Reedy Branch Stream Monitoring Year 3: 2007 Alamance County, NC .31-.44 Medium 8-11.3 .44-.63 Medium 11.3-16 .63-.89 Coarse 16-22.6 .bu-l.2ti coarse 22.6-:32 1.26-1.77 Very Coarse 32-45 1.77-2.5 Very Coarse 45-64 2.5-3.5 Small 64-90 3.5-5.0 Small 90-128 5.0-7.1 Large 128-180 7.1-10.1 Large 180-256 10.1-14.3 Small 256-362 14.3-20 Small 362-512 20-40 Medium 512-1022 R A V E L COBBLE 2 2 4% 96% 1 1 2% 98% 1 1 2% 100% BOULDER U U% 100% 0 0% 100% 0 0% 100% 0 0% 100% 0 0% 100% 0 0% 100% 0 0% 100% 0 0% 100% 0 0% 100% Riffle Pebble Count, Cross Section #4 100% m 80% 60% iL 40% U Dc' 20% 0% 7177 i U.U1 U.1 1 10 100 1000 Particle Size (mm) -0- Cumulative Percent Year 1) ? Percent Item (Year 1) - A Cumulative Percent ((Year 2 x Percent Item (Year 2) - K Cumulative Percent Year 3 • Percent Item (Year 3 300 G:\Environmental\EN06.004 - EEP Monitoring 5 sites\2007 - Reedy Branch\Data\Reedy Pebbles Reedy Branch Stream Monitoring Year 3: 2007 Alamance County, NC PEBBLE COUNT te: Reedv Branch IPJ Inches Particle Millimeters Silt/Clay < 0.062 S/C Very Fine .062-.125 Fine .125-.25 S Medium .25-.50 NN Coarse .50-1.0 D .04-.08 Very Coarse 1.0-2 .08-.16 Very Fine 2.0-4.0 .16-.22 Fine 4-5.7 .22-.31 Fine 5.7-8 G .31-.44 Medium 8-11.3 R .44-.63 Medium 11.3-16 A .63-.89 Coarse 16-22.6 V 89-1.26 Coarse 22.6-32 E .26-1.77 Very Coarse 32-45 L .77-2.5 Verv Coarse 45-64 COBBLE 7.1-10. In 1-1d Medium Large 1 Bedrock 4 4 7% 47% 8 8 14% 60% 5 5 9% 69% 8 8 14% 83% 8 8 14% 97% 0 0% 97% 0 0% 97% n noL Q70/- 0 0% 97% 0 0% 97% 0 0% 97% 2 - BOULDER 48 BDRK u uio yi% 0 O% 97% 0 0% 97% 1 1 2% 98% 1 1 2% 100% 0 0% 100% 0 0% 100% 0 0% 100% 0 o% 100% 0 0% 100% Pool Pebble Count, Cross Section #5 100% CIO 80% H a5 60% LL Z 40% U d 20% 0% -77 IIII III, 1 1 1 1 III III III 1 1 1 1 1 I I I I I I I I I I I I I I I I I I I I I I I I I III I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I III I I I I I I I I I I I I I I I I I I I I I I I III I I I I I III I I I I I III I I I I I III I I I I I I I I I ? I I I I I III I I I I IIII I I I I I III I I ! I I III I I I I I I I I I I I" I III I I I I I III I I I I I III I I I I I III I I I I I I I I I I I I I I I ? II ? IIII. I I I I I III I I I I I III I I I I IIII I I I I I I I I I I I I I I I I III I I I I IIII I I I I I I I I I I I I I III I I I I I I I I •I I?I • IIII • III ---------------- 0.01 0.1 1 10 100 1000 10000 Particle Size (mm) *-Cumulative Percent Year 1 ? Percent Item Year 1 -A--Cumulative Percent Year 2 X Percent Item Year 2 -Cumulative Percent Year 3 • Percent Item Year 3 SeSEPI ENGINEERING GROUP Cross-Section 5 G:\Environmental\EN06.004 - EEP Monitoring 5 sites\2007 - Reedy Branch\Data\Reedy Pebbles Reedy Branch Stream Monitoring Year 3: 2007 Alamance County, NC PEBBLE COUNT Site: Reedy Branch Party: IPJ and PDB Date: 11/11/2007 Inches Particle Millimeters Silt/Clay < 0.062 SIC Very Fine .062-.125 Fine .125-.25 S Medium .25-.50 A N Coarse .50-1.0 p .04-.08 Very Coarse 1.0-2 .08-.16 Very Fine 2.0-4.0 .16-.22 Fine 4-5.7 .22-.31 Fine 5.7-8 G .31-.44 Medium 8-11.3 R .44-.63 Medium 11.3-16 A .63-.89 Coarse 16-22.6 V E S-e SEPI ENGINEERING GROUP Cross-Section 6 .89-1.26 Coarse 22.6-32 1.26-1.77 Very Coarse 32-45 L 1.77-2.5 Very Coarse 45-64 2.5-3.5 Small 64-90 3.5-5.0 Small 90-128 COBBLE 5.0-7.1 Large 128-180 7.1-10.1 Large 180-256 10.1-14.3 Small 256-362 14.3-20 Small 362-512 20-40 Medium 512-1024 BOULDER 40-80 Large 1024-2048 Bedrock BDRK (Riffle) TOT# ITEM % % CUP 5 5 9% 9% 0 0% 9% 1 1 2% 11% 2 2 4% 14% 10 10 18% 32% 14 14 25% 57% 2 2 4% 61% 0 0% 61% 0 0% 61% 10 10 18% 79% 0 0% 79% 0 0% 79% 7 7 13% 91% 2 2 4% 95% 1 1 2% 96% 2 2 4% 100% 0 0% 100% 0 0% 100% 0 0% 100% 0 0% 100% 0 0% 100% 0 0% 100% 0 0% 100% 0 0% 100% 56 100% 100% Riffle Pebble Count, Cross Section #6 100% 80% L H 60% LL 40% d a 20% 0% III 1 1 1 1 1 1 I ? I I I 1 1 1 1 III I I I l l l f I I I I I I I I I I III I I I I T III I I I IIII I -rTT I t l l l I I I I! I I I , I I ? I I I I I I III IIII ? I V I I I I ! I '. II I '. I I I I I? I: I ? I ! II II I . I I V I I I I I i I I I I I? I i i t III ' I I I I I I I I I n 1 1 ( I ? II 1 1 1 3 I I I l i l l i . I I I I III I i I I I IIII I I I I ? .. I '., i! I I: I ? ? ? I I I I I I I I I I ., I 1`I ' I I I V I I I '.. I V I I I '. i I I I III I ? I I 1 I ? I I I I I I I I i I! I III , I. I I I I III I I I'-III I I I I I I I I i I f l l l l 0.01 0.1 1 10 100 1000 10000 Particle Size (mm) -A Cumulative Percent (Year 2) x Percent Item (Year 2) CIE-Cumulative Percent (Year 3) • Percent Item (Year 3) G:\Environmental\EN06.004 - EEP Monitoring 5 sites\2007 - Reedy Branch\Data\Reedy Pebbles APPENDIX C PLAN VIEW SHEETS d z ? Ch x Q n M M ° w w Z } ? N Q C) w = J °z G z ?} a V O Q z v ° z ?L 0 mo G ? L1 w z W O a om }j ¢ .. a /i 0 m cr m m ?0 o o a a ? J W W '00 ak SON {yy /J IF-W NC? p N !/ y v Q 2 n O / rim \ 1 `?' f w w m o mo m j U a m w cr cra En D U) U) ou o ?w z 07 0 MH J / U O ?0 Q ? O U) 0- LL ON 00 U LL lew S/ I ; I Q( O /?.. " \ F E fr> y f? U) U a mo w x> co m D U w O ?? "? ? z Q Ir a 3 \\ n v U) U> O ,?•\ <?m mM m \J m m u 30 a. ,?:? w, ?d C7 0 °a w .;?z w a F- ?mm 3 v \ w m m z N J 66 N ig o ; N m y .. N cn w 11 'I ,Il Rrn ? w m v N LLJ le 11 / \ c o z z w d z z 0 z m O o m° // i! ?/ ac z n H ° H W 0 m U n n J Q Q 7 /II m w o °a a cr I? LL z > U) u 0 ¢ m cwn a a w a? l \ \ B G n 19 r \\ i ? N m C \I ° to n w ^ N z j m O E8 aVN ?I m N m a N z z N N ?_,R II C7 J C7 LL J M W O ?? l I w T (L 3 L=i 3 0 LLi O M 0 I t,v 1 rI = a= 0 z o 0 °x m? w m? U a I I 2 I I ? I I I 2?$ I I I I ?$Q r i I 04? U) d N M _ cc L n Q z o w Z N w = } Q f`7 O MATCH LIE SEESHEET z o' o ? o / ! I cc f-) U W G II m G cr c°o ? I I O 0 o ` II LU z it r LU O -? m II h oC H °a 1? m z m >= o v~j x w w w Z ` \` \ O a 2 U W W WOr H ? I1' W N o S C7 aim w 11 I z •n a O S QUA \ a?ti?.?_. ?\ ? ) 1111 ? CYIV JA•] ?"r' ? jI /I r w cr w Co u 0. ~c m a cr cr (n ucr /j 0 U) 0- LL moN J0 Y W ?? ?? cr > w o r? \ m (L C` ow o O z m ?r II y c ?> 1r I I I N l :Dl a / m ¢ 3 NU> O cc NO CL C` ?N U w w z to J T\ ` _ N W O N w ?•\ \ " N / U7 N W O ¢ Y CC Cr u U) W z a z 7 a ° z °D LL1 o m ? I.- C` Q Q '\ N J W w O O U ir a 4x it z > 0 0 O 11 + m W a a D I\ N ? It ?I it It o i N g / m U) CO cr N N \ 0? '?f? ai m m m ~ / B N m Q N z H z ( N N ; Q U O -1 -J M W J C7 O LL J Z to a ?/ II w-1 w p -LL /// II 3 Y J w Y O U) II ,? /// F m H w Co U d m / I? 1 W vcOET•1T•0 10M / I ? I 1 q0 \ \\ ddd zz? m I ? I 21 I I I I ? I I I I I ? 1 0 Z ?, m m m rn ? f uT Q ? W D7 o1 O) ? N O) D) D N N N W N N N N N N ? M O O N VJ t?D F n 0 a ° ? N W N 0 fD 0 t0 0 N (O 0 N n 0 e) 0 Z m m om ? am0 m 0 F W U• N Q ? O O ? 2 Q O) N ? O N (n n n n n m N U z o n o n 0 n 0 n 0 n 0 n ? F H LL W H ? LL H N J Q J ¢ J Q N N N N a s N fU f°0 0) OUl fU0 X X X X X m Y H X zz x 0 z u G 2 N O ?a (? n c? z W W won W z?m z w N z =^ w 3 Vr NQJJ 0 o N 5 ? U 2 m N LLJ 2W?? 1 1 ; 1I '. \\ ?I f r i r YS 6 ? _ • . ? ?-- --' -n ? 11 u rjl /I / it n I I I Q5 h I rl n v \r r 1\ 1\ 1\ ? 11 1 1 ? 11 1\1 11, 1? 1 11` 1 h l /-7 y / 00 h I ? ?I I I I' I I ?? I I I? I \ \ 1!?'t fir) Ch Q U Z 0 O W } N _ > a (h U z F Z U' ' a Q Z U O c H co O ? H w z W O a m aC o a l LU C ) oC m 'm ~ W o N ? ¢Q Y 0 a a a w a w v f w w m c ~ u F _ O 3a N W M c J Q D r U O H F w ~ 07 Ucr O O O 0 7 W (rte H O (Ad m N 0 0 0 0 , U LL ail Y W U Z (r > UI W tL Y ~ OZ LLI W = > rr )-co ? Q U) U> O N win O (r u z O c w U) O Z W CD o N U cr w z Q a M V z o W o co J w w o (Y Q z > 0 w m ( !) a I? ?r w (r D U 7 H W C7 Z J Q LL 1 Y U O tY O w m O Q 3 F O O 0 w w 3 J w w y U a Y z z m 0 ? 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I ~o n n n n I ? p= 0- I $ o a n a I ' o 0 0 0 I O\ ?mS o00 aaaa I I ??O C9 W W W W I I I I II Lu > > > > i I + ?? I I ? a M z N 1= = w 0 n } Q o < co Z ' Q N w = >Q v i G Y47CH LIE SEE SHEET ] Z W z a z o / 1 o G d , I m w G it I I 0 U) o + L II w Q ICI J` 1= OZ M a a4 m ? \\ z .. o Z lai r \\\1` `\ \? O > z U W W WOn W \\\+ ?II ? J rW ZOO Q ? I1 Fr W N G V I ? az? ? II ?I I W 3!=701 G /'?.. N aJ J !`' [r 1 II I I? C I 1 ll r-- 1 I 1 ?- oe /1 r e-? ?l // £ / ? \I \ ? Z Q W w N- U) u LU \\.. \\\ W(LW a W CL UI u LL "/r jl! p t- w I cr O L" \ Yr 1• I D WX jrw d L- Lij u LL w w a Jl: p F- m > i UZQ U F ? ?Z? r /' , uaO ', II LL O I` OZ ,r ?•.\ x = 1 - wl.- W m YW > 3 LL m > Y (naW LU O ¢Wm a ZOO ow w 1-- w M <E o 7 li F- QW u o \ + O L- D Z a II ZZO p a III II -Z Z N U> o II it L LI 0 Ln mo d ) i I? LD mo -- If -II--- J u Z o N B m N W m N ZC7 ?!! ! N N N 3 (\i Q u m II W J 0 Li J N 3c LL 3c LL 0 J Y J W Y N _ a z a 0 z a o / m ? oW m u 1n inmmm z I W ?` \\ Y[OLt\l01 / 11 t O ? I 1 V' i_ ?? M101 '0 ? ? U ¢ V n ai00 O I ? I W0 80 I /Al m I i o mm?m ? j I \\? /?/ J 0) = n0 O O ti F- nnnn I I z Imm?ao Q J J J J ? a a a a ? ? ? o 0 0 o I i I I 1 W ??c7c7 i ? i w > > > > dl z M x d V Z °E C uRt M G 0 O N O ° ?a C7 {i) W O I? Wz ? ? Z Jz.? o V N W •• N J J O ? W f 0 (?W7 O y? a S? VI (jr) zaw_ w (n?-U w ()_ ? ?vo x ?wu two R L1 x Ljj o LL wow F- :> O U) M z a UH-z z .- a VO-0 0 O ? IL ~ L x= wl-w w w 3m W (n Qm aw zQ0 J O 0 a H O O r Zz z W LD w J c*? W U } z O _ F- rQ U z z w z z F a Q 2 U co cn Cl) W Q W W- z a p 0 _ M a 1-4 0 F- m m m w C7 yO w w > 3 O J d O a U I N w U w a N U_ LL ?- O O X W W W " M W LL > a cn a w w> a? Y W u z 0-a N W a: > y U O w c ow 0 ¢ > ° w co M H cr U 7 w z o a 3 )n a se > O ~ O O cn cr N O ir cr u n m r .q AT ii C9 n N CD N m W ^ N Z (O n O Co m m ?- to se N N N N 3 Q U co C7 J 0 LL - N 3 = 3 O l i LL O N a O z a O z a m F O I I I I I I I I I I ? I I I I I I w ! ? I ? ? I m I I I I I I I ? I u I