20021785 Ver 1_Mitigation Information_20080414

WELLS CREEK
FINAL MONITORING REPORT
YEAR 3 OF 5
2007
EEP Project # 414
Alamance County, North Carolina
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RECEIVED
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ENHAN ECOSYSTEM
Original Design Firm: ?®r
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ARCADIS G&M of North Carolina, Inc.
801 Corporate Center Drive, Suite 300
Raleigh, NC 27607 "PR 1 4 2008
Submitted to:
tkusystelii
NCDENR-EEP
1652 Mail Service Center
Raleigh, NC 27699
W? NDENR - WATER QUALM
Monitoring 1+'l?'Inl`ANDS70RMWA7ERBRANC
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SEPI
V ENGINEERING GROUP
1025 Wade Avenue
Raleigh, NC 27605
Phone: [phone]
Project Manager:
Phillip Todd
[e-mail]
Executive Summary
The North Carolina Ecosystem Enhancement Program (EEP) restored two reaches along Wells
Creek and an unnamed tributary in 2004. This project is located in Alamance County, NC. The
three different reaches flow through pasture areas and wooded sections. Prior to restoration,
cattle and horses had unlimited access to the stream channels which created areas of severe bank
erosion and loss of vegetation. Since the restoration has been complete, the livestock have been
fenced out of the stream with the exception of a few crossings that are used throughout the year to
move the cattle from one field to another.
There were several goals for this stream and buffer restoration project. Goals of the stream
project included: reducing the bank erosion; reducing nutrient runoff on the site; stabilizing
stream channel banks by planting vegetation; and helping the stream reach its equilibrium
through the proper design ratios for dimension, pattern, and profile.
This report documents the data collected for Year 3 monitoring. 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.
All reaches are considered to have remained geomorphically stable between Monitoring Years 2
and 3, with the exception of several areas of aggradation occurring in riffle sections of all three
reaches. However, it has been concluded so far that the riffles are probably just adjusting to a
more stable state, post-construction. There were several areas of bank erosion in all three
reaches. All three reaches had problems with structures being positioned wrong or placed at the
wrong angle and therefore allowing excess stress and erosion on the bank. Only Reach 1 had
structures where the structural integrity appeared to be compromised, a cross-vane located at
Station 12+75 and a j-hook located at station 14+03. These two structures had water piping under
or around stones, were the most severe problem structures, and should be assessed to determine
the need for future maintenance.
Overall, there appears to be good vegetation along the stream channel and floodplain of all three
reaches. There are extensive stands of Japanese grass (Microstegium vimenium) in all of the
monitored reaches. The largest areas of the grass are noted on the plan view sheets in Appendix
C.Bare root trees in all Reach 1 plots, and Plot 4 in Reach 2, are not meeting the stems/acre for
260 stems at Year 5. Overall, the survivability from Monitoring Year 2 and 3 was good despite
the area being in a drought.
Wells Creek SEPI Engineering Group
EEP Number 414 Final Report
June 2007 Monitoring Year 3 of 5
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 ............................................................................... .. l
1.4 History and Background ..................................................................................... ..2
2.0 PROJECT 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 PROJECT 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 ......................................................................................... ..8
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 ....................................................................................... 10
3.2.4 Stream Problem Areas .......................................................................... 10
3.3 Photo Documentation ......................................................................................... 12
4.0 RECOMMENDATIONS AND CONCLUSIONS ............................................................ 12
REFERENCES ................................................................................................... 12
TABLES
Table I Project Mitigation Structure and Objectives ........................................................................1
Table II Project Activity and Reporting History ........................................................... ....................2
Table III Project Contact Table .................................................................................... ....................5
Table IV Project Background Table ............................................................................. ....................5
Table V Preliminary Soil Data ..................................................................................... ....................7
Table VI Vegetative Problem Areas .............................................................................. Appendix A3
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 ............................. ..................11
Table XII Baseline Morphology and Hydraulic Summary ........................................... Appendix B3
Table XIII. Morphology and Hydraulic Monitoring Summary .................................... Appendix B3
FIGURES
Figure 1: Vicinity Map ......................................................................................................................3
Figure 2: Reaches of Restoration Monitoring ...................................................................................4
Wells Creek SEPI Engineering Group
EEP Project Number 414 Draft Report
December 2007 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 134: Stream Cross Sections ........................................................................................... B4
Appendix B5: Stream Longitudinal Profile ................................................................................... B5
Appendix B6: Stream Pebble Counts ............................................................................................ B6
Appendix C: Plan View Sheets
Wells Creek SEPI Engineering Group
EEP Project Number 414 Draft Report
December 2007 Monitoring Year 3 of 5
1.0 PROJECT BACKGROUND
1.1 Proiect Obiectives
The goal of this stream restoration project is to improve the water quality in the Cape Fear River Basin.
Wells Creek and its unnamed tributary (UT) at this project site are typical of streams within this and
surrounding watersheds. Prior to restoration, the channels exhibited instability and degradation in
response to the current and historical land use practices. Nutrient input should decrease with the
establishment of a riparian buffer and fencing the cattle out of the streams. In time, the buffer will
provide wildlife cover and shade to the stream which will encourage wildlife diversity, both aquatic and
terrestrial.
1.2 Proiect Structure, Restoration Type, and Approach
Reach 1 (the northern-most section) is the longest section covering approximately 1,246 linear feet.
Reach 2 includes 1,140 linear feet of Wells Creek and is located south of Reach 1. The Unnamed
Tributary (UT) reach is approximately 1,014 linear feet and lies west of Reach 2. Figure 2 shows the
relative location of the three reaches.
Priority Level I, II and III restoration were implemented to restore the streams to a more stable condition.
Boulder structures were constructed and installed at strategic locations to provide stream bed and bank
stability. Root wads were installed to provide bank protection and increase habitat diversity. Table I
details the specific restoration components employed on each reach.
Table I. Project Mitigation Structure and Objectives Table
Wells Creek/EEP Project Number 414
Project Segment or
Reach ID Mitigation
Type
Approach* Linear Footage or
Acreage Stationin #
Comment#
Reach 1 R P I 756 New channel constructed
E (I) P II & P III 2,250 Modified profile and dimension
Reach 2 R P I 840 New channel constructed
E (I) P II & P III 404 Modified profile and dimension
Unnamed Tributary R P 1 1,161 New channel constructed
E (I) P II & P III 332 Modified profile and dimension
Note: "R" and "E (I)" in the Mitigation Type column refer to Restoration and Enhancement Level I.
"P" in the Approach column refers to Priority Level.
"*" - The Monitoring Year 1 report does not designate the Priority Level for each project reach. The noted approach is
inferred based on comments in Table 2 of Monitoring Year 1 for the project.
"#" - information taken from Table 2 of Monitoring Year 1 for the project.
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. From Siler City, go north on Martin Luther King
Boulevard. The North Carolina Atlas and Gazetteer (DeLorme 1997) labels Martin Luther King
Boulevard as Snow Camp Road. Continue north toward the community of Snow Camp (approximately
12 miles). Just before Snow Camp, take a left on SR 2360 (Sylvan School Road). Continue on Sylvan
School Road for approximately 2 miles then take a right on Bass Mountain Road. Continue on Bass
Mountain Road for approximately '/2 mile and take a left on Beale Road. Continue on Beale Road for
approximately 1 mile, then turn right on Longest Acre Road (Wright Road in the NC Gazetteer). Reach 1
is at the end of Longest Acre Road. All three reaches are located in the triangle created by Bass Mountain
Wells Creek 1 SEPI Engineering Group
EEP Number 414 Final Report
February 2008 Monitoring Year 3 of 5
Road, Beale Road, and Thompson Road. Figure 1 shows the location of the three reaches. The site is
located in a rural portion of Alamance County on a working livestock farm. The stream reaches flow
through pasture and wooded areas. Prior to restoration, livestock had unlimite d access to several portions
of the channel. Since the completion of restoration, the stream has been fen ced off from the livestock.
The surrounding topography has gently sloping hills.
1.4 History and Background
Wells Creek and its tributary were in an active cattle pasture prior to restoration. The current land owner
cleared the land for pasture in the 1970's. Prior to the 1970's the land was forested. According to the
owner, there was a mill on site. An old rock dam is located upstream of Reach 2, and an old breached
rock dam is at the downstream end of Reach 1. Prior to restoration the stream s lacked sinuosity and they
were likely altered for agriculture. Tables II-IV provide background information for the project.

Activity or Report Completion Complete Deliver

Temporary S&E mix applies to entire project area August 2003-April 2004

Wells Creek 2 SEPI Engineering Group
EEP Number 414 Final Report
February 2008 Monitoring Year 3 of 5
Table II. Project Activity and Reporting History
Wells CreeWEE P Pro'ect Number 414

Scheduled Data
Collection
Actual Completion or
Restoration Plan August 1, 2002
Final Design - 90% unknown
Construction August 2003-April 2004

Permanent seed mix applies to reach/se ments 1&2 August 2003-April 2005
Containerized and B&B plantings for reach/segments
1&2
August 2003-April 2006
Mitigation Plan/ As-built
(Year 0 Monitoring -baseline)
Dec-04
December 2004/July 2004
Year I monitoring Sep-05
Year 2 monitoring Apr-06 Nov-06
Year 3 monitoring Oct-07 Dec-07
Year 4 monitoring Apr-08
Year 5 monitoring Apr-09
Year 5+monitoring
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EEP Monitoring Year 3
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Wells Creek
Figure 1
Alamance County, North Carolina
Wells Creek
EEP Number 414
February 2008
3 SEPI Engineering Group
Final Report
Monitoring Year 3 of 5
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Wells Creek 4 SEPI Engineering Group
EEP Number 414 Final Report
February 2008 Monitoring Year 3 of 5
Table 111. Project Contract Table
Wells Creek/EEP Project Number 414
Designer ARCADIS G&M of North Carolina
801 Corporate Center Drive, Suite 300
Raleigh, NC 27607
Construction Contractor A&D Environmental and Industrial Services, Inc.
Gerald Walker
2718 Uwharrie Road Archdale, NC 27263
336-434-7750
Planting Contractor Seal Brothers Contracting Eddie Tobler
PO BOX 86 Dobson, NC 27017
336-786-8863
Seeding Contractor A&D Environmental and Industrial Services, Inc.
Gerald Walker
2718 Uwharrie Road Archdale, NC 27263 336-
434-7750
2005 Monitoring Performers ARCADIS G&M of North Carolina
801 Corporate Center Drive, Suite 300
Raleigh, NC 27607
2006 & 2007 Monitoring SEPI Engineering Group
Performers 1025 Wade Avenue
Raleigh, NC 27605
Phillip Todd 919 789-9977
Stream Monitoring POC Ira Poplar-Jeffers [phone]
Vegetation Monitoring POC Phil Beach 919 573-9936
Wetland Monitoring POC N/A
Table IV. Project Background Table
Wells Creek/EE P Project Number 414
Project County Alamance

Drainage Area Reach 1: 1.63 sq mi
Reach 2: 2.23 sq mi and
UT: 0.71 s q. mi
Drainage impervious cover estimate For example Wells Creek Reach I & 2 -3%; Unnamed Tributary <I %
Stream Order Wells Creek Reach 1: 2nd Order
Wells Creek Reach 2: 3rd Order
Unnamed Tributa : 1 st Order
Ph sio a hic Region Piedmont
Ecore ion Southern Outer Piedmont Carolina Slate Belt
Rosgen Classification of As-built C 4/1
Cowardin Classification Disturbed Cattle Pasture

Dominant soil types Colfax, Lignum, Georgeville, Tarr-us, Herndon, Local Alluvial
Land, and Vance

Reference site ID UT to Wells Creek, Cane Creek Mountains, Alamance County
and UT to Varnals Creek
USGS HUC for Project and Reference 03030002 Haw River
NCDW Sub-basin for Project and Reference 03-06-04
NCDWQ classification for Project and Reference Project and reference are Class C, NSW
An onion of an 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) NA
Wells Creek
EEP Number 414
February 2008
SEPI Engineering Group
Final 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 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 for each reach 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, thalweg,
water surface, edge of water, left and right bankfull, and left and right top of bank were surveyed. All
profile measurements were calculated from this survey, including channel and valley length and length of
each feature, water surface slope for each reach and feature, bankfull slope for the reach, and pool-to-pool
spacing. This survey also was used to draw plan view figures with Microstation v8 (Bentley Systems,
Inc., Exton, PA) for each reach, 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
Four permanent cross sections (two riffles and two pools) were surveyed at each reach. The beginning
and end of each permanent cross section were originally marked with a wooden stake. Cross sections
were established perpendicular to the stream flow with station 0+00 feet located on the left bank. The
survey noted all changes in slopes, 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 bankfulls and
adding the area of each 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 plotted, and Year 3 monitoring data was overlain on
Monitoring Year 2 and Monitoring Year 1 (where available) 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 Monitoring Year 1 and Monitoring Year 2 data.
Wells Creek 6 SEPI Engineering Group
EEP Number 414 Final 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 taken 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 (where available) and 2 data.
2.3 Photo Documentation
Permanent photo points were established during Year 1 monitoring. 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 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. Preliminar Soil Data
Series Max
Depth
in. % Clay on
Surface K T OM %
Colfax (Cc) 67 5.0-20.0 0.45 * 1.0-3.0
Colfax (Cf) 67 7.0-25.0 0.36 * 1.0-3.0
Efland (EaC) 86 «««< Information unavailable »»»>
Efland (EaC2) 86 «««< Information unavailable »»»>
Efland (EbC3) 86 «««< Information unavailable »»»>
Geor eville GaC2) 63 5.0-20.0 0.48 * 0.5-2.0
Geor eville (GaD2) 63 5.0-20.0 0.48 * 0.5-2.0
Local alluvial Ld) «««< High variability of data »»»>
Starr Sb) 70 10.0-25.0 0.34 * 0.5-2.0
Vance (VcC2 72 8.0-20.0 0.55 * 0.5-2.0
* The soils information was not available from the Natural Resources Conservation Service (MRCS)
3.1.2 Vegetative Problem Area Plan View
Overall, there appears to be good vegetation along the stream channel. There are some bank erosion areas
as noted in the stream problem area section of the report (See Section 3.2.4).
All three monitoring reaches have good herbaceous vegetative cover. Bare root trees are not as prevalent
in Reach 1 when compared the numbers in Reach 2 and the UT.
There are extensive stands of Japanese stilt grass (Microstegium vimineum) in all of the monitored
reaches. The largest areas of the grass are noted on the plan view sheets in Appendix C.
Wells Creek 7 SEPI Engineering Group
EEP Number 414 Final Report
February 2008 Monitoring Year 3 of 5
3.1.3 Stem Counts
The stem densities on Reaches 2 and the UT are well above the Monitoring Year 5 stem density goal (260
stems/acre). Stem densities on Reach 1 were below the Monitoring Year 5 goal (260 stems/acre).
The overall survival rate among all vegetation plots (VP) was 73% between Monitoring Years 1 and 3
and 85% between Monitoring Years 2 and 3. The survival rate is good considering the 2007 drought in
addition to the 2005 drought. Vegetation plot photos are located in Appendix A2, and vegetation data
tables are located in Appendix A3.
It should be noted that there were several species for which one-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 Betula nigra (VP #8),
Carpinus caroliniana (VP #6), Fraxinus pennsylvanica (VP #9), Platanus occidentalis (VP #1, 2, 6, 8,
and 9), and Quercus michauxii (VP #3, 7, and 9). 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:
Acer rubra (VP #1), Acer saccharinum (VP #8), Alnus serrulata (VP #2 and 4), Cephalanthus
occidentalis (VP #5), Cornus ammomum (VP #1), Cornus florida (VP #5), Diospyros virginiana (VP #1,
4, and 9), Fraxinus pennsylvanica (VP #8), Juglans nigra (VP #8), Liquidambar styraciua (VP #4, 5, 6,
8, and 9), Liriodendron tulipifera (VP #4, 5, and 6), Platanus occidentalis (VP #5), Quercus michauxii
(VP #1 and 8), Quercus alba (VP #1 and 3), and Ulmus rubra (VP #8).
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.
Wells Creek $ SEPI Engineering Group
EEP Number 414 Final Report
February 2008 Monitoring Year 3 of 5
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.
Table VIII. Verification of Bankfull Events - Wells Creek
Date of Date of Method Photo #
Data Occurrence (if
Collection available
Bankfull event recorded: evident by crest stage gauge (0.6" wet no photo
7/19/2006 Unknown on the measuring stick).
Bankfull event recorded: evident by crest stage gauge (7.0" wet no photo
1/19/2007 Unknown on the measuring stick).
Crest gauge reading of 4.75" over bankfull (located at 0.00" on no photo
4/5/2007 Unknown gauge).
According to NOAA National Weather Service daily climate data,
approximately 1.45" of precipitation fell over the listed two day
6/4/2007 6/3/2007- period. 1" of this fell on 6/3. An additional 0.4" fell on 6/5/2007. It No Photo.
6/4/2007 was assumed, but not confirmed, that this event resulted in a bankfull
flow.
3.2.1 Longitudinal Profile and Plan View
The overall water surface slopes of the three reaches appear stable between Monitoring Years 1 through
3. In addition, all pattern parameters (including sinuosity) and the plan view overlay remain consistent
between Monitoring Years 1 through 3.
All other profile parameters in all reaches appear consistent since Monitoring Year 1 except for riffle
length and pool spacing. In Reach 1 both of these parameters appear to have decreased slightly between
Monitoring Years 1 and 2 and then stabilized between Monitoring Years 2 and 3. Although this result
may be explained by probable differences in survey calls in the field, it is also indicative of a possible
settling period after construction during which the streambed adjusted to a stable state prior to Monitoring
Year 2. In Reaches 2 and UT, a fairly consistent annual decline in riffle length and pool spacing is
apparent between Monitoring Years 1 and 3. As with Reach 1, it is most likely the case that differences
in survey calls account for most of this apparent change, based on the consistency of the longitudinal
overlays. It may also be possible that the post-construction streambed adjustment is taking longer in these
two reaches compared to Reach 1 and may reach a stable state in the next monitoring year.
3.2.2 Permanent Cross Sections
All Reach 1 cross sections appear stable between monitoring years, except for cross section #3, which
appears to have filled in slightly on the right side of the channel since Monitoring Year 2. . This result is
indicative of deposition occurring on this riffle which is consistent with the fact that cross section #3
crosses a bed aggradation and mid-channel bar area. To further support this result, there was a notable
decrease in the cross-sectional area of cross section #3 since Monitoring Year 2.
In Reach UT, cross sections #5 and #6 appear stable between Monitoring Years 2 and 3. It appears that
the Monitoring Year 2 survey stationing was off somehow for both cross sections #7 and #8 compared to
the Monitoring Year 3 survey. However, it was still possible to compare the shape of these two cross
sections. It appears that cross section 7 has filled in notably since Monitoring Year 2, which is consistent
with the aggradation associated with this section of Reach UT. Unfortunately, cross sectional areas
cannot be compared between the two years because if the survey stationing was off in Monitoring Year 2,
Wells Creek 9 SEPI Engineering Group
EEP Number 414 Final Report
February 2008 Monitoring Year 3 of 5
then the cross-sectional area would have been impacted. Cross section #8 has a bank erosion area on the
right side, and although it is difficult to make a comparison because there are apparent differences in
survey stationing between Monitoring Years 2 and 3. It does appear through the comparison of the
overall shape of the surveys that the right side of cross section #8 has widened slightly.
In Reach 2, cross sections #10 and #11 remain stable between monitoring Years 2 and 3 and have no
problem areas associated with their location. Cross section #9 crosses a section of aggradation, which is
consistent with a slight filling in of the right side of the stream bed. The aggradation is noted on the cross
sectional overlay, and there is a slight overall decrease in the cross-sectional area of cross section #9 since
Monitoring Year 1. Also it is apparent, through observation of the cross sectional overlay, that cross
section #12 experienced a significant down-cutting of the channel bed between Monitoring Years 1 and 2.
The channel then stabilized after the scour event, and the overlay between Monitoring Years 2 and 3
remains stable. This observation is consistent with a notable increase in both cross sectional area and
bankfull mean depth between Monitoring Years 1 and 2, and subsequent consistency in these variables
between Monitoring Years 2 and 3.
3.2.3 Pebble Counts
Based on the pebble data overlays, it appears that the upper end of Reach 1 has experienced a notable
amount of fine sediment deposition. This result is evident in the fact that the cross section #1 pebble
distribution plot (Appendix B6) shows a rather dramatic increase in fine sediments since Monitoring Year
2, and the cross section #2 plot (Appendix B6) shows progressively higher percentages of fine sediments
each year since Monitoring Year 1. The sediments are presumably entrained from an upstream source,
because of on-going agricultural and other sediment-producing land-uses upstream and there are only two
small sections of erosional bank (only one upstream of cross section #1) located in the upstream half of
the reach that could have contributed fine sediments to the channel. In addition, it appears that most of
the entrained fine particles were deposited before reaching cross section #3, because both cross section #3
and #4 pebble counts show that the bed material in these locations has at least remained consistent since
Year 1 and possibly has coarsened slightly. This result is somewhat surprising considering cross section
#3 is associated with an aggradation and central bar formation problem area, but it does appear from the
pebble count overlay that the bed material of this cross section experienced an influx of fine sediments in
Year 2 and then a re-coarsening in Year 3. Even though the cross section survey overlay does not show a
bed elevation fluctuation to support this result, the sediment trend does indicate the occurrence of an
aggradational event at some point after Year 1 monitoring and a recoarsening of the bed material post-
aggradation.
Reach UT pebble count overlays show that Reach UT has experienced a progressive coarsening of riffle
bed materials every monitoring year since Monitoring Year 1 (see cross sections #6 and #7 pebble counts
Appendix B6). The pool pebble counts have remained consistent with some possible slight fine sediment
deposition (normal for a pool) since Monitoring Year 2 (see cross sections #8 count Appendix B6) or
have coarsened notably (see cross section #5 count Appendix B6).
The Reach 2 pebble count overlays show that Reach 2 riffles have experienced a progressive coarsening
of bed materials since Monitoring Year 1 (see cross sections #9 and #11 pebble counts Appendix B6).
Reach 2 pool bed materials have at least remained consistent or have even coarsened slightly since
Monitoring Year 2 (see cross section #10 and #12 pebble counts Appendix B6).
3.2.4 Stream Problem Areas
Aggradation in riffle sections remains fairly prominent in all three restoration reaches. In many cases,
this aggradation may not be a problem as the stream appears to be narrowing to a stable dimension where
Wells Creek 10 SEPI Engineering Group
EEP Number 414 Final Report
February 2008 Monitoring Year 3 of 5
the riffle sections were built too wide. However, in some cases, the aggradation is a result of grass or
cattails growing in the channel substrate and retaining excess fine sediments. There is some bank erosion
in all reaches, but more commonly in Reaches 2 and UT. There is no severe erosion to note in Reach 1.
There are several severe cases of bank erosion in Reaches 2 and UT (see plan views) with the most
common causes being either lack of vegetation, soil instability, or incorrect angle or placement location of
protective structures associated with the location of the erosional area. In fact, the majority of the
problems found with in-stream structures were based on placement angle or position. However, there
were two structures where there was significant piping observed underneath stones or between the stream
bank and stones lodged in the bank. These structures were a cross-vane located at Station 12+75 along
Reach 1 and a j-hook located at Station 14+03 along Reach 1. The plan view sheets (Appendix Q show
the location of the problem areas. Table X in Appendix B3 provides a list of problem areas for each reach
along with the feature issue, station number, and suspected cause.

Segment/Reach: 2

Wells Creek 11
EEP Number 414
February 2008 SEPI Engineering Group
Final Report
Monitoring Year 3 of 5
Table XI a. Categorical Stream Feature Visual Stability Assessment
Wells Creek
Segment/Reach: 1
Feature Initial MY-01 MY-02 MY-03 MY-04 MY-05
A. Riffles 95% 79%
B. Pools 95% 92%
C. Thalwe 92% 93%
D. Meanders
k
k 74% 76%
E. Bed General Un
nown Un
nown 96% 92%
F. Bank Condition 95% 98%
G. Vanes / J Hooks etc. 94% 99%
H. Wads and Boulders 88% 97%
Table XI b. Categorical Stream Feature Visual Stability Assessment
Wells Creek

Feature Initial MY-01 MY-02 MY-03 MY-04 MY-OS
A. Riffles 80% 84%
B. Pools 85% 95%
C. Thalwe 83% 93%
D. Meanders
k
k 53% 77%
E. Bed General Un
nown Un
nown 90% 92%
F. Bank Condition 70% 79%
G. Vanes / J Hooks etc. 86% 89%
H. Wads and Boulders 71% 86%
Table XI c. Categorical Stream Feature Visual Stability Assessment
Wells Creek
Se ment/Reach: UT
Feature Initial MY-01 MY-02 MY-03 MY-04 MY-05
A. Riffles 83% 96%
B. Pools 88% 96%
C. Thalwe 87% 93%
D. Meanders 81% 76%
E. Bed General Unknown Unknown 84% 85%
F. Bank Condition 83% 94%
G. Vanes / J Hooks etc. 85% 94%
H. Wads and Boulders 69% 88%
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 l. The photographs taken at the marked
photo point locations and at the cross-sections are provided in Appendix B2.
4.0 RECOMMENDATIONS AND CONCLUSIONS
All reaches are considered to have remained geomorphically stable between Monitoring Years 2 and 3,
with the exception of several areas of aggradation occurring in riffle sections of all three reaches. These
areas do correspond to several riffle sections on the longitudinal profile overlay plots where it appears that
bed elevations have risen slightly since Monitoring Year 2 (e.g. at Station 15+95 along Reach UT and at
Station 17+24 along Reach 2). However, it has been concluded so far that the riffles are probably just
adjusting to a more stable state, post-construction. There was a trend in all three reaches toward shorter
riffles and reduced pool spacing. It has been concluded at this point probably to have been caused by
differences in survey field calls between monitoring years and that this trend was probably not caused by
actual geomorphic change. These parameters and trends will be reviewed again in Monitoring Year 4.
All other plan, profile, and pattern factors appear stable between monitoring years. There were several
areas of bank erosion in all three reaches. The only severe bank erosion areas to review closely again in
Monitoring Year 4 were identified in Reaches 2 and UT. The most common causes of bank erosion were
likely either lack of vegetation, soil instability, or incorrect angle or placement location of protective
structures associated with the location of the erosional area. All three reaches had problems with
structures being positioned wrong or placed at the wrong angle and therefore allowing excess stress and
erosion on the bank. Only Reach 1 had structures where the structural integrity appeared to be
compromised, a cross-vane located at Station 12+75 and a j-hook located at station 14+03. These two
structures had water piping under or around stones, were the most severe problem structures, and should
be assessed to determine the need for future maintenance.
The conclusion regarding vegetation at the end of Monitoring Year 3 is that bare root trees in the plots for
Reach 1, and Plot 4 in Reach 2, are not meeting the stems/acre for 260 stems at Year 5. Overall, the
survivability from Monitoring Year 2 and 3 was good despite the area being in a drought.
REFERENCES
ARCADIS G&M of North Carolina, Inc (ARCADIS). September 2004. Mitigation Plan, Wells Creek at
Syndor Property.
Wells Creek 12 SEPI Engineering Group
EEP Number 414 Final Report
February 2008 Monitoring Year 3 of 5
ARCADIS G&M of North Carolina, Inc (ARCADIS). December 2005. Year One Monitoring Report,
Wells Creek at Syndor Property.
DeLorme. 1997. The North Carolina Atlas and Gazateer.
Harman, W.H., et at. 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. November 2006. Content, Format and Data
Requirements for EEP Monitoring Reports, Version 1.2.
Rosgen, D.L. 1994. A Classification of Natural Rivers. Catena 22: 166-169.
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.aimy.mil/wetlands/Mitigation/stream mitigation.html
Wells Creek 13 SEPI Engineering Group
EEP Number 414 Final Report
February 2008 Monitoring Year 3 of 5
Appendix Al
Photolog - Vegetation Problem Areas
APPENDIX Al
PHOTOLOG - WELLS CREEK (REACH 1)
PROBLEM AREAS (Vegetation)

Monitoring Year 3 Appendix Al
Vegetation Problem Areas - Reach 1 Page 1 of 1
Photo l: Bank Erosion (Station 10+85 along
plan view).
Photo 2: Bank erosion (Station 22+20 along
plan view).
APPENDIX Al
PHOTOLOG - WELLS CREEK (REACH 2)
PROBLEM AREAS (Vegetation)
plan view).
J-
3
Monitoring Year 3 Appendix Al
Vegetation Problem Areas - Reach 2 Page 1 of l
Photo 3. Past Bank Erosion Stabilizing.
Photo l: Bank Erosion (Station 10+20 along
0f 1
Photo 2: Bank erosion

APPENDIX Al
PHOTOLOG - WELLS CREEK (UT)
PROBLEM AREAS (Vegetation)
Monitoring Year 3 Appendix Al
Vegetation Problem Areas - UT Wells Creek Page 1 of 1
Photo 1: Bank Erosion April 11 DSCN 5750
(Station along plan view).
Appendix A2
Photolog - Vegetation Plots
APPENDIX A2
PHOTOLOG - WELLS CREEK
VEGETATION PLOTS
Monitoring Year 3 Appendix A2
Vegetation Plots - Wells Creek Page 1 of 2
Photo 2: Vegetation Plot 2
Photo 1: Vegetation Plot 1
Photo 4: Vegetation Plot 4
Photo 3: Vegetation Plot 3
Photo 6: Vegetation Plot 6
Photo 5: Vegetation Plot 5
Monitoring Year 3 Appendix A2
Vegetation Plots - Wells Creek Page 2 of 2
Photo 8: Vegetation Plot 8
Photo 7: Vegetation Plot 7
Photo 9: Vegetation Plot 9
Appendix A3
Vegetation Data Tables
Table VIA. Vegetative Problem Areas
Feature/Issue Station # / Range Probable Cause Photo #
(Bare Bank
Reach 1 - 13+00 (LEFT) Lack of vegetation; flow direction from upslope cross vane
Reach 1 - 13+18 (LEFT) & back water effect of downstream j-hook
Reach 1 10+83 (LEFT) Location of rootwads upstream creating backeddies downstream SPA - #2
Reach 1 - 10+95 (LEFT) contributing directly bank erosion
Reach 1 - 11+15 (LEFT)
Reach l - 12+98 (LEFT) Lack of vegetation; Also flow direction coming from upstream cross-vane and
Reach 1 - 13+17 (LEFT) backwater affect of downstream J-Hook
Reach 1 - 22+19 (RIGHT) Direction of flow, unstable soils, lack of vegetation
Reach 1 - 22+35 (RIGHT) Direction of flow, unstable soils, lack of vegetation
Reach 2 - 10+22 (LEFT) Possibly due to rootwad/j-hook placement upstream, soil stability,
Reach 2 - 10+46 (LEFT) lack of vegetation, and/or radius of curvature
Reach 2 - 10+76 (LEFT) Soil instability and/or lack of protective vegetation.
Reach 2 - 10+72 (LEFT) Soil instability and/or lack of protective vegetation.
Reach 2 - 10+81 (RIGHT) Soil instability and/or lack of protective vegetation.
Reach 2 - 11+00 (RIGHT) Soil instability and/or lack of protective vegetation.
Reach 2 - 11+80 (RIGHT) Angle/placement of rootwad directly downstream. Also soil instability and/or lack
Reach 2 - 11+90 (RIGHT) of protective vegetation.
Reach 2 - 11+94 (LEFT) Angle/placement of rootwad directly upstream. Also soil instability and/or lack of SPA - 3
Reach 2 - 12+11 (LEFT)
protective vegetation.
Reach 2 - 12+56 (RIGHT) Soil instability and/or lack of protective vegetation. Possible that adjacent j-hook
Reach 2 - 12+59 (RIGHT) was placed slightly too far downstream.
Reach 2 - 12+82 (RIGHT) Pl

Reach 2 - 12+92 (RIGHT) acement angle/size is major cause of severe erosion directly downstream.
Reach 2 - 13+37 (LEFT) Soil instability and/or lack of protective vegetation. Adjacent j-hook possibly
Reach 2 - 13+42 (LEFT) placed too far downstream and/or angle is directing flow into bank.
Reach 2 - 13+63 (LEFT) S
il i
ili

Reach 2 - 13+87 (LEFT) o
nstab
ty and/or lack of protective vegetation on outside of meander.
Reach 2 - 14+67 (LEFT) S
il i
i

Reach 2 - 14+75 (LEFT) o
nstab
lity and/or lack of protective vegetation.
Reach 2 - 14+69 (RIGHT)
il i
S
bili

Reach 2 - 14+93 (RIGHT) nsta
o
ty and/or lack of protective vegetation.
Reach 2 - 15+03 (LEFT) SPA-2
Reach 2 - 15+12 (RIGHT) Placement/angle possible cause of downstream adjacent erosion;
Reach 2 - 15+98 (RIGHT) also soil instability and/or lack of protective vegetation.
Reach 2 - 15+24 (LEFT) Placement/angle of j-hook directly upstream. Also soil instability and/or lack of
Reach 2 - 15+86 (LEFT) protective vegetation.
Reach 2 - 16+21 (RIGHT) Placement/angle of j-hook probable cause of downstream adjacent erosion. Flow
Reach 2 - 16+25 (RIGHT) being directed into bank.
Reach 2 - 16+94 (RIGHT)

Reach 2 - 17+05 (RIGHT) Possibly caused by back eddy from adjacent crossvane.
Reach 2 - 17+00 (LEFT) Soil instability and/or lack of protective vegetation. Crossvane directly upstream
Reach 2 - 17+37 (LEFT) not adequtely dissipating flow energy during high flow events.
Reach 2 - 17+50 (RIGHT) Soil instability and/or lack of protective vegetation. Possible that adjacent j-hook
Reach 2 - 17+61 (RIGHT) was placed slightly too far downstream.
Reach 2 - 18+94 (LEFT) Healing, but small amount of active erosion still left caused by angle/placement of
Reach 2 - 18+96 (LEFT) t he j-hook located just upstream.
Reach 2 - 19+34 (RIGHT Soil instability and/or lack of protective vegetation. Adjacent j-hook possibly
Reach 2 - 19+53 (RIGHT) p laced too far downstream and/or angle is directing flow into bank.
UT - 10+10 (LEFT)
P S
ossibly caused by improper placement of J-hook directl
u
stream PA - 1
UT - 10+22 (LEFT) y
p
UT- 11+40 (LEFT)
P
ossibly caused by angle of j-hook upstream

UT - H+55 (LEFT) .
UT - 16+50 (LEFT)
P
ossibly due to the flow being directed toward the bank from J-hook
str

UT - 16+54 (LEFT) up
eam
UT - 17+28 (LEFT) P robably caused by J-hook placement too far downstream. At high flows water is
UT 17+50 (LEFT) t o be redirected toward left bank, causing erosion.
UT - 17+80 (RIGHT)
P
ossibly caused by improper angle or location of u
stream rock vane
UT - 17+92 (RIGHT) p
UT - 19+45 (RIGHT)
L
ack of vegetation/bank protection
channel narrowin
adjacent to riffle

UT - 19+56 (RIGHT) ,
g
.
Table B. Vegetative Problem Areas
Feature/Issue Station # / Range Probable Cause Photo #
Bare Bank UT - 19+66 (LEFT)

UT - 19+93 (LEFT) Lack of vegetation/bank protection
Bare Bench
Bare Flood Plain Reach 1 - 11+25 to 11+50 (LEFT)
Reach 1 - 11+90 to 12+00 (LEFT)
Invasive/Exotic Populations Reach 1 - 17+50 to 17+75 (LEFT) Japanese grass
Reach 1 - 18+25 to 18+50 (LEFT) Japanese grass
Reach 1 - 19+50 to 19+75 (LEFT) Japanese grass
Reach 1 - 20+25 to 21+00 (LEFT) Japanese grass
Reach 1 - 22+15 to 22+40 (RIGHT) Japanese grass
Reach 2 - 12+00 to 12+25 (LEFT) Japanese grass
Reach 2 - 15+25 to 15+50 (LEFT) Japanese grass
UT - 13+50 to 13+75 (RIGHT) Japanese grass
UT - 16+20 to 16+50 (RIGHT) Japanese grass
UT - 19+10 to 19+30 (RIGHT) Japanese grass

Note: SPA refers to Stream Problem Area photolog.
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Appendix B1
Photolog - Stream Problem Areas
APPENDIX B1
PHOTOLOG - WELLS CREEK (REACH 1)
PROBLEM AREAS (Stream)
Monitoring Year 3 Appendix B 1
Stream Problem Areas - Reacb 1 Page 1 of 1
Photo 1: Representative grass aggradation
problem area (19+06.73 along plan view).
Photo 2: Representative cattail aggradation
problem area (18+63.51 along plan view).
Photo 3: Representative problem root wad
and bank erosion (10+82.28 along plan
view). Root wads located in bank along left
side of picture.
Photo 4: Representative problem cross vane
(12+75.47 along plan view).
APPENDIX B1
PHOTOLOG - WELLS CREEK (REACH 2)
PROBLEM AREAS (Stream)
3 '? 9
,
V
i
t}
1
X
,

view).
Monitoring Year 3 Appendix B1
Stream Problem Areas - Reach 2 Page 1 of 1
Photo 2: Representative problem j-hook and
bank erosion (Station 15+03 along plan
Photo 1: Representative grass
aggradation/lateral bar problem area (Station
18+15 along plan view).
Photo 3: Representative problem root wad
and bank erosion (Station 11+94along plan
view).
APPENDIX B1
PHOTOLOG REACH 1 - WELLS CREEK (UT)
PROBLEM AREAS (Stream)
Monitoring Year 3 Appendix B 1
Stream Problem Areas - UT Wells Page 1 of 1
Photo 1: Representative grass aggradation
problem area (12+55.96 along plan view).
Photo2: Representative problem j-hook and
bank erosion (10+10.93 along plan view).
Appendix B2
Photolog - Cross-Sections & Photo Points
APPENDIX B2
PHOTOLOG - WELLS CREEK (REACH 1)
CROSS-SECTIONS & PHOTOPOINTS
Cross-Section 2: Looking Downstream
h ,
Cross-Section 3: Looking Downstream
Cross-Section 2: Looking Upstream
`x
V.?_.., Xk F '. Ary

Cross-Section 3: Looking Upstream
Monitoring Year 3 Appendix B2
Photolog - Cross-Sections & Photopoints (Reach 1) Pagel of 4
Cross-Section 1: Looking Downstream
Cross-Section 1: Looking Upstream
Monitoring Year 3 Appendix B2
Photolog - Cross-Sections & Photopoints (Reach 1) Page 2 of 4
Cross-Section 4: Looking Upstream
Cross-Section 4: Looking Downstream
y
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Photo point 2: Looking Upstream
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ar s' y
Monitoring Year 3 Appendix B2
Photolog - Cross-Sections & Photopoints (Reach 1) Page 3 of 4
Photo point 2: Looking at Channel
Photo point 1: Looking Upstream
Photo point 1: Looking at Channel

Photo point 3: Looking Upstream
a : ,1 I
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Photo point 4: Looking Upstream
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Photo point 4: Looking at Channel
Monitoring Year 3 Appendix B2
Photolog - Cross-Sections & Photopoints (Reach 1) Page 4 of 4
Photo point 3: Looking Downstream
Photo point 4: Looking Downstream
APPENDIX S2
PHOTOLOG WELLS CREEK (REACH 2)
CROSS-SECTIONS & PHOTOLOG
"
K4

/ s *0 3k,
Cross-Section 9: Looking Downstream
2

Cross-Section 10: Looking Upstream
Monitoring Year 3 Appendix B2
Photolog - Cross-Sections & Photo Points - Reach 2 Pagel of 4
Cross-Section 9: Looking Upstream
Cross-Section 11: Looking Downstream
Cross-Section 11: Looking Upstream

Monitoring Year 3 Appendix B2
Photolog - Cross-Sections & Photo Points - Reach 2 Page 2 of 4
Photo point 5: Looking Upstream
Cross-Section 12: looking Downstream
Photo point 5: Looking at Channel
Cross-Section 12: looking upstream
Photo point 5: Looking Downstream
Photo point 6: Looking Downstream
a
Photo point 6: Looking Upstream

rt
??h ? ?' 'c. ytr s
Photo point 6: Looking at Channel

Photo point 7: Looking at Channel
Monitoring Year 3 Appendix B2
Photolog - Cross-Sections & Photo Points - Reach 2 Page 3 of 4
Photo point 7: Looking Upstream
Photo point 7: Looking Downstream
Photo point 8: Looking Downstream

Ile
4
Photo point 8: Looking at Channel
Monitoring Year 3 Appendix B2
Photolog - Cross-Sections & Photo Points - Reach 2 Page 4 of 4
Photo point 9: Looking Upstream
Photo point 8: Looking Upstream
Photo point 9: Looking at Channel
Photo point 9: Looking Downstream
APPENDIX B2
PHOTOLOG WELLS CREEK (UT)
A?z,
3
`y
Cross-Section 5: Looking Upstream
Monitoring Year 3 Appendix B2
Photolog - Cross-Sections & Photo Points - UT Wells Page I of 4
Cross-Section 5: Looking Downstream
Cross-Section 6: Looking Upstream
Cross-Section 7: Looking Upstream
Cross-Section 6: Looking Downstream
Cross-Section 7: Looking Downstream

K
Monitoring Year 3 Appendix B2
Photolog - Cross-Sections & Photo Points - UT Wells Page 2 of 4
Cross-Section 8: Looking Downstream
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Cross-Section 8: Looking Upstream
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Monitoring Year 3 Appendix B2
Photolog - Cross-Sections & Photo Points - UT Wells Page 3 of 4
Photo point 11: Looking Downstream
Photo point 10: Looking Downstream
Photo point 11: Looking Upstream
Photo point 10: Looking Upstream
Photo point 10: Looking at Channel
Photo point 12: Looking Downstream
Monitoring Year 3 Appendix B2
Photolog - Cross-Sections & Photo Points - UT Wells Page 4 of 4
Photo point 12: Looking Upstream
Appendix B3
Stream Data Tables
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Table B1. Stream Problem Areas
Wells Creek Reach 2
Feature Issue Station
numbers Suspected Cause Photo
number
Rootwad 11+91.52
Angle/placement possibly cause of bank erosion directly up- and downstream. Photo 3
Aggradation (grass lateral bar) 12+16.28 Ch
l b
il
i

12+53.87 anne
u
t too w
de. Stream naturally narrowing at a stable dimension.
Rootwad 12+79.46 Placement angle/size is major cause of severe erosion directly downstream.
Aggradation (grass) 13+12.45

13.41.21 Channel built too wide. Stream naturally narrowing at a stable dimension.
J-hook 13+41.87 See above comment.
J-hook 14+03.21 Si
f
gni
icant piping around right side of structure, minor piping around left side.
J-hook 15+07
75
. Placement/angle possible cause of downstream adjacent erosion. Photo 2
J-hook (severe) 15+98.98 Placement/angle probable cause of downstream adjacent erosion. Flow
being directed into bank.
Aggradation (grass) 16+30.11 Channel built too wide. Stream naturally narrowing at a stable dimension.

16+62.22 Appears to be remnants of previous erosion now healed over leaving a side-
bar in the channel.
Aggradation (grass) 17+07.91 C

17+37.24 hannel built too wide. Stream naturally narrowing at a stable dimension.
Aggradation (grass) 18+13.61 Ch

18+52.92 annel built too wide. Stream naturally narrowing at a stable dimension. Photo 1
J-hook 18+69.61 Placement/angle possible cause of downstream erosion.
J-hook 19+48.02 See above comment.
Aggradation (grass) 20+40.41

20+52.64 Gravel sand deposit at tail of pool, possibly made too deep.
Table B1. Stream Problem Areas
Wells Creek Reach LIT
Feature Issue Station
numbers Suspected Cause Photo
number
J-hook 10+00.00 Improper angle and placement of J-hook may be cause of adjacent bank

erosion Photo 2
Aggradation (grass) 10+37.57 Ch
l
i
t
t
bl
t
t

10+40.00 anne
narrow
ng
o s
a
e s
a
e
Aggradation (grass) 10+93.71
Ch
l
i
t
t
bl
t
t
11+10.53 anne
narrow
ng
o s
a
e s
a
e
Aggradation (cattail) 11+55.36 Ch
l
i

11+77.17 anne
narrow
ng to stable state
Aggradation (grass) 11+77.17 Ch
l
i

12+12.44 anne
narrow
ng to stable state
Aggradation (grass) 12+58.40 Ch
l
i
t
t
bl
t
t

12+70.34 anne
narrow
ng
o s
a
e s
a
e Photo 1
Aggradation (grass)/Lateral Bar 13+35.05 Ch
l
i

Formation
13+83.44 anne
narrow
ng to stable state as evidenced by lateral bar formation.
Aggradation (grass) 14+21.44
Ch
l
i
t
t
bl
14+46.88 anne
narrow
ng
o s
a
e state
Aggradation (grass) 14+86.35
Ch
l
i
15+25.19 anne
narrow
ng to stable state
Aggradation (grass) 15+87.53 Ch
l
i
t
t
bl

16+30.15 anne
narrow
ng
o s
a
e state
J-hook 16+35.89 A
l
d/
l
f
ng
e an
or p
acement o
J-hook causing bank erosion downstream
Aggradation (grass) 16+61.37 Ch
l

16+84.71 anne
narrowing to stable state
Rock Vane 17+76.47 Angle and/or placement of rock vane may be causing bank erosion directly
downstream
Rootwad (severe) 18+07.10 B
k f
il
/
an
a
ure
undermining around structure and placement too high
Rootwad 18+11.88 Pl
d t
hi
h
ace
oo
g
.
Rootwad 18+18.21 Pl
d t
hi
h
ace
oo
g
.
Bank Erosion (right bank) 18+41.74 L
k
f
t
ti
i

18+60.92 ac
pro
o
ec
ve vegetat
on and/or soil instability.
Aggradation (grass) 18+85.20 Ch
l

19+06.50 anne
narrowing to stable state
Rootwad 19+27.97 S
i
i
l b
k f
il
/
ome m
n
ma
an
a
ure
undermining around structure.
Aggradation (grass) 19+43.93 Ch
l

19+58.06 anne
narrowing to stable state
Table B2. Visual Morphological Stability Assessment
Wells Creek
Se ment/Reach: 1 1241 feet

Feature Category
Metric (per As-built and reference baselines) (#Stable)
Number
Performing as
Intended
Total Number
per As-built Total Number
I feet in

unstable state % Performing
in Stable

Condition Feature
Performance

Mean or Total
A. Riffles 1. Present 13 16 NA 81%
2. Armor stable 13 16 NA 81%
3. Facet grade appears stable 12 16 NA 75%
4. Minimal evidence of embedding/fining 13 16 NA 81%
5. Length appropriate 12 16 NA 75% 79%
B. Pools 1. Present 19 20 NA 95%
2. Sufficiently deep 19 20 NA 95%
3. Length appropriate 17 20 NA 85% 92%
C. Thalweg 1. Upstream of meander bend (run/inflection) centering 6 6 NA 100%
2. Downstream of meander (glide/inflection) centering 6 7 NA 86% 93%
D. Meanders 1. Outer bend in state of limited/controlled erosion 8 13 NA 62%
2. Of those eroding, # w/concomitant point bar formation 3 5 NA 60%
3. Apparent Rc within specifications 9 11 NA 82%
4. Sufficient floodplain access and relief 13 13 NA 100% 76%
E. Bed General 1. General channel bed aggradation areas (bar formation) NA NA 10/187.6 85%
2, Channel bed degradation - areas of increasing down cutting
or head cutting NA NA 0/0 100% 92%
F. Bank Condition 1. Actively eroding, wasting, or slumping bank NA NA 3/56.3 98 % 98%
G. Vanes / J Hooks etc. 1. Free of back or arm scour 18 18 NA 100%
2. Height appropriate 18 18 NA 100%
3. Angle and geometry appear appropriate 18 18 NA 100%
4. Free of piping or other structural failures 17 18 NA 94% 99%
H. Wads and Boulders 1. Free of scour 15 16 NA 94%
2. Footing stable 16 16 NA 100% 97%

Table B2. Visual Morphological Stability Assessment
Wells Creek
Se ment/Reach: 2 1153 feet

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 9 10 NA 90%
2. Armor stable 9 10 NA 90%
3. Facet grade appears stable 7 10 NA 70%
4. Minimal evidence of embedding/fining 9 10 NA 90%
5. Length appropriate 8 10 NA 80% 84%
B. Pools 1. Present 13 13 NA 100%
2. Sufficiently deep 13 13 NA 100%
3. Length appropriate 11 13 NA 85% 95%
C. Thalweg 1. Upstream of meander bend (run/inflection) centering 6 6 NA 100%
2. Downstream of meander (glide/inflection) centering 6 7 NA 86% 93%
D. Meanders 1. Outer bend in state of limited/controlled erosion 6 12 NA 50%
2. Of those eroding, # w/concomitant point bar formation 4 6 NA 67%
3. Apparent Rc within specifications 12 12 NA 100%
4. Sufficient floodplain access and relief 12 13 NA 92% 77%
E. Bed General 1. General channel bed aggradation areas (bar formation) NA NA 6/179.3 84%
2. Channel bed degradation - areas of increasing down cutting
or head cutting NA NA 0/0 100% 92%
F. Bank Condition 1. Actively eroding, wasting, or slumping bank NA NA 191477.64 79% 79%
G. Vanes / J Hooks etc. 1. Free of back or arm scour 14 14 NA 100%
2. Height appropriate 14 14 NA 100%
3. Angle and geometry appear appropriate 9 14 NA 64%
4. Free of piping or other structural failures 13 14 NA 93% 89%
H. Wads and Boulders 1. Free of scour 5 7 NA 71%
2. Footing stable 7 7 NA 100% 86%

Table B2. Visual Morphological Stability Assessment
Wells Creek
Se ment/Reach: UT 1013 feet

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 15 15 NA 100%
2. Armor stable 15 15 NA 100%
3. Facet grade appears stable 13 15 NA 87%
4. Minimal evidence of embedding/fining 15 15 NA 100%
5. Length appropriate 14 15 NA 93% 96%
B. Pools 1. Present 17 17 NA 100%
2. Sufficiently deep 15 17 NA 88%
3. Length appropriate 17 17 NA 100% 96%
C. Thalweg 1. Upstream of meander bend (run/inflection) centering 6 6 NA 100%
2. Downstream of meander (glide/inflection) centering 6 7 NA 86% 93%
D. Meanders 1. Outer bend in state of limited/controlled erosion 8 13 NA 62%
2. Of those eroding, # w/concomitant point bar formation 3 5 NA 60%
3. Apparent Rc within specifications 9 11 NA 82%
4. Sufficient floodplain access and relief 13 13 NA 100% 76%
E. Bed General 1. General channel bed aggradation areas (bar formation) NA NA 12/302.3 70%
2. Channel bed degradation - areas of increasing down cutting
or head cutting NA NA 0/0 100% 85%
F. Bank Condition 1. Actively eroding, wasting, or slumping bank NA NA 8/122.26 94% 94%
G. Vanes / J Hooks etc. 1. Free of back or arm scour 13 13 NA 100%
2. Height appropriate 13 13 NA 100%
3. Angle and geometry appear appropriate 10 13 NA 77%
4. Free of piping or other structural failures 13 13 NA 100% 94%
H. Wads and Boulders 1. Free of scour 14 16 NA 88%
2. Footing stable 14 16 NA 88 % 88

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Cross Section Overlay (Years 1 - 3)
Wells Creek - Reach 1
Cross Section #1 (Pool)
649
648
647
a?
646
0 645
ca
644
w
643
642
641
Distance (feet)
Year 1
--Year 2
-A Year 3
I I I I I ? it I ?
II 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 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 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
------Bankfull -
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
I I I
I I I
I I I
I I
r 1---
I I I
I I
i I I
I I I
I I I
I I I I
I , I I I
- -I - - - - r - - -
I ---- I- I _ I I I
I I I I I I
I I I I I I
1 I 1 1
I I
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 I I I
I I I I I I
I I I I I 1
I I I I I I
1 I I 1 I I
I I I I I I
I I I I I
I I I I 1
I I I 1 I I
I I I I I I
I I I I I
0 10 20 30 40 50 60 70 80 90 100
Cross Section Overlay (Years 1 - 3)
Wells Creek - Reach 1
Cross Section #2 (Riffle)
649
648
647
646
645
0
644
w 643
642
641
640
- - - - - -- - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - -
-- ----- --- -- -- -- ----
---
-----
---------.--- --- -+------- Bankfull ------ ------- -- -
----- ----- -------------- ------------ ------

------ - ------- J--------- -------- ---------
0 10 20 30 40 50 60
70 80 90
Year 1
? Year 2
-Year 3
Distance (feet)
Cross Section Overlay (Years 1 - 3)
Wells Creek - Reach 1
Cross Section #3 (Riffle)
647
646
645
a?
644
.o
643
w 642
641
640
I I 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 I I I I I I I
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, I I I I I I I
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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
0 10 20 30 40 50
60 70 80 90
Year 1
Year 2
A Year 3
Distance (feet)
Cross Section Overlay (Years 1 - 3)
Well Creek - Reach 1
Cross Section #4 (Pool)
646
645
644
cD 643
r 642
O
641
°-' 640
W
639
638
637

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0 10 20 30 40 50 60
70 80 90 100
Year 1
-i- Year 2
-? Year 3
Distance (feet)
Cross Section Overlay (Years 1 - 3)
Well Creek - Reach UT
Cross Section #5 (Pool)
610
609
608
607
m
606
0
w
> 605
N
W
604
603
602
601
?
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I I I I I I
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I I I I I 1
I I I I I
II I I I I I
I I 1 I I I
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0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90
-Year 1
-F- Year 2
-Year 3
Distance (feet)
Cross Section Overlay (Years 1 - 3)
Well Creek - Reach UT
Cross Section #6 (Riffle)
610
609
608
607
d
d
o_ 606
m
w 605
604
603
602
I I
I I
I I
I I
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I I I I I I I
I I I I I I I
I i I 1 I I I I
I i 1 1 I I I I
I I I I I I I I
0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90
Distance (feet
--s Year 1
-Year 2
-A Year 3
Cross Section Overlay (Years 2 and 3)
Well Creek - Reach UT
Cross Section #7 (Riffle)
610
bog
6o8
607
6o6
0
r? 60S
CI
604
603
602
6o1
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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 I I I I I I I I I
1 I I I I I I I I I I f I I I
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I I I I I I I I I I I I I I I
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-?--Year 2
-+- Year 3
10 15 20 25 30 35 40 45 50 55 60 65 70 75 80
Distance (feet)
Cross Section Overlay (Years 2 and 3)
Well Creek - Reach UT
Cross Section #8 (Pool)
606
605
604
603
as
a?
o 602
c?
a?
w 601
600
599
598
0 5 10 15 20 25 30
35 40 45 50 55 60
Year 2
- Year 3
Distance (feet)
Cross Section Overlay (Years 1 - 3)
Well Creek - Reach 2
Cross Section #9 (Riffle)
607
606
605
m
m
C 604
w
m
T
-------------------------- -------------1--------------------L--------------------1----------
Bankfull
603 -
602
601 -
0
10
20
Distance (feet)
30
40
-Year 1
Year 2
-+r Year 3
Cross Section Overlay (Years 1 - 3)
Well Creek - Reach 2
Cross Section #10 (Pool)
606
605
604
a?
603
6 602
m
601
Mu
600
599
598
Bankfull
--- ---
0 10 20 30 40
-Year 1
-Year 2
-Year 3
Distance (feet)
Cross Section Overlay (Years 1 - 3)
Well Creek - Reach 2
Cross Section #11 (Riffle)
604
I
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-- --------------- ------------------ -------------- ---- ---
I I I I
I I I I
I I I
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603
602
601
a?
m
o 600
c?
m
w 599
598 -
597
596
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10
20
Distance (feet)
30
40
50
-} Year 1
Year 2
-+- Year 3
Cross Section Overlay (Years 1 - 3)
Well Creek - Reach 2
Cross Section #12 (Pool)
603
602
601
600
m
599
0
> 598
W
597
596
595
594
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0 10 20 30 40
50 60 70 80
Year 1
-¦- Year 2
-+- Year 3
Distance (feet)
Appendix B4
Field Crew: IPJ and PDB
Stream Reach: 1
Project: Wells Creek
Drainage Area: 1.63
Date: Jan-07
Monitorina Year 2
STATION ELEVATION NOTES
Feet Feet
647.90
647.39
647.74
647.83
647.67
647.27
646.15
646.00
645.87
645.14
644.62
644.09
643.60
M66 .
643.95
644.36
644.78
645.03
645.09
645.36
645.67
646.03
646.05
646.87
647.79
648.09
648.34
648.60
648.69
648.91
649.48
TOB
LEW
TW
REW
TOTALS
Bankfull/Top of Bank
Hydraulic Geometry
Width Depth Area
(Feet) (Feet) (Sq. Ft.)
0.0 0.0 0.0
0.4 0.2 0.0
1.9 0.7 0.9
0.7 1.3 0.7
0.4 1.8 0.6
0.1 3.3 0.4
1.8 3.8 6.2
1.3 3.6 4.7
1.7 3.5 6.0
1.5 3.0 5.0
1.4 2.1 3.4
1.2 1.7 2.2
2.7 1.4 4.2
1.1 1.0 1.3
6.2 0.6 4.9
2.4 0.3 1.1
0.6 0.3 0.2
1.2 0.0 0.2
26.4 42.0
SUMMARY DATA
A(BKF) 42.0
BKF W(BKF) 26.4
TOB Max d 3.8
Mean d 1.6
Cross Section #1
Pool
650
649
.........: ....:....:....:......---- ........... .... ;. ;.......... ..........
.
648 . -- -
.........
.
647 .. ..
646 .. ..
.....
c
- - _ - - - - - - -
- -
y 645 -
:....:-.._;....: ..;...
R
°' 644
.......... .........................•- --•----•-- --- :....;....:-.. .
W
643 ..._;....? ....:....:....:.........:. ..:........ .. .. ..
642 .... ;....:....; :....:....:. ..:. ..:....:....;... .

641
0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120
Distance (feet)
m
x
n
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2
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Appendix B4
Field Crew: IPJ and PDB
Stream Reach: UT
Project: Wells Creek
Drainage Area: 0.71
Date: Apr-07
Monitorina Year 2
STATION ELEVATION NOTES
Feet Feet
609.80
609.25
608.88
608.65
605.96
605.77
605.50
605.41
605.32
605.17
605.02
604.79
604.55
604.64
604.04
603.55
603.10
602.21
602.05
601.77
602.69
602.87
602.87
603.57
604.07
604.28
605.07
605.23
605.45
605.57
605.49
605.72
607.43
607.79
607.97
608.50
BKF
LEW
TW TOTAL
BankfulllTop of Bank
Hydraulic Geometry
Width Depth Area
(Feet) (Feet) (Sq. Ft.)
0.0 0.0 0.0
1.0 0.2 0.1
0.7 0.5 0.2
1.2 0.4 0.5
1.1 1.0 0.8
0.2 1.5 0.2
0.0 1.9 0.0
2.8 2.8 6.5
1.2 3.0 3.4
0.8 3.2 2.4
0.4 2.3 1.2
0.6 2.1 1.3
1.8 2.2 3.8
0.3 1.4 0.5
0.4 1.0 0.5
0.8 0.7 0.7
1.4 0.0 0.5
14.7 22.8
S
SUMMARY DATA
REW A(BKF) 22.8
W(BKF) 14.7
Max d 3.2
Mean d 1.6
TOB
Cross Section #5
Pool
610
609
608
Z- 607
4)
606
a
605
604
W
603
602
601
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0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85
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Appendix B4
Field Crew: IPJ and PDB
Stream Reach: 2
Project: Wells Creek
Drainage Area: 2.23
Date: May-07
Monitoring Year: 2
STATION ELEVATION NOTES
Feet Feet
604.87
604.15
604.15
603.87
604.02
603.64
602.02
601.73
601.19
601.00
600.31
599.63
599.46
599.64
599.53
599.78
600.58
600.96
602.23
603.14
603.80
604.13
604.30
604.32
604.61
BKF
LEW
TW
REW
TOT
Bankfull/Top of Bank
Hydraulic Geometry
Width Depth Area
(Feet) (Feet) (Sq. Ft.)
0.0 0.0 0.0
1.5 1.6 1.2
0.6 1.9 1.1
0.4 2.5 0.9
0.4 2.6 1.1
0.8 3.3 2.3
0.4 4.0 1.4
1.1 4.2 4.5
1.5 4.0 6.0
1.4 4.1 5.8
0.9 3.9 3.7
1.6 3.1 5.5
1.3 2.7 3.8
3.7 1.4 7.6
3.3 0.5 3.2
1.8 0.4
ALS 20.8 48.4
TOB SUMMARY DATA
A(BKF) 48.4
W(BKF) 20.8
Max d 4.2
Mean d 2.3
Cross Section #10
Pool
605
604
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0 5 10 15 20 25 30 35 40
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(100 1) uoi;e na13
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-

Appendix B6
Stream Pebble Counts
PEBBLE COUNT
Site: Wells Creek
eSEP1
SG
E
G
Party: IPJ & PDB NGINEERING
ROUP
,
Date: 10/16/07 PA RTICLE COUNT
CS 1
Inches Particle Millimeters TO T# ITEM % % CUM
Silt/Clay < 0.062 SIC 45 45 87% 87%
Very Fine .062-.125 4 4 8% 94%
Fine .125-.25 S 2 2 4% 98%
Medium .25-.50 N 1 1 2% 100%
Coarse .50-1.0 D 0 0% 100%
.04-.08 Very Coarse 1.0-2 0 0% 100%
.08-.16 Very Fine 2.0-4.0 0 0% 100%
.16-.22 Fine 4-5.7 0 0% 100%
.22-.31 Fine 5.7-8 0 0% 100%
.31-.44 Medium 8-11.3 R
R 0 0% 100%
.44-.63 Medium 11.3-16 A 0 0% 100%
.63-.89 Coarse 16-22.6 V 0 0% 100%
.89-1.26 Coarse 22.6-32 E 0 0% 100%
1.26-1.77 Very Coarse 32-45 L 0 0% 100%
1.77-2.5 Ve Coarse 45-64 0 0% 100%
2.5-3.5 Small 64-90 0 0% 100%
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%
40-80 Large 1024-2048 0 0% 100%
Bedrock BDRK 0 0% 100%
TOTALS 1, 52 100% 100%
Pebble Count, Cross Section 1
Pool
100 -*7777
-- ,--
90% T

80%

70%

60%
50%

c 40%
2 30%
Q) 20%

10%
0%

0.01 0.1 1 10 100 1000 10000
Particle Size (mm)
+ Cumulative Percent (Year 3) ? Percent Item (Year 3)
-Cumulative Percent (Year 2) • Percent Item (Year 2)
I ? I I I I
I I I I I 'I I I I I I 1 1 1 1 1 1 I I 1 1 1 1 1 1 I I 1 1 1 1 1 1 I I 1 1 1 1 1 1
I I I
i t I I I I I I III I I I I I III I I I I III
'
' I I I I I III I I I I I I I I
I I I I III
i I I V I I I I 1 I I I I I I I ? I I
I I I
I I V I I I I I I I I I I)
t / i i i III
I I I?I IIII 1i ? ? i ? III I I I I i ? i i I i 1 1 1 l ?? I ? I I I 1 ? ?
? I l i II III II l i II I III 1 II l i 'i ? ? II I II I I II I III 1 ? I I I I I I I i I I I I 'I II
I I I I I ii I I I ?. I I III I V I I I III I I I I I II 1 V I I I j'' I ! I I I I II
I '. I I I I I I I; I IIII 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 II I I I I I III
I
I I I I I I I I
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 III I i I I I I I I
I V 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 V I I I
I I I I I IIII I ( I I I I
1 I I I I I I
I I I I I I I I I I I I I III I I! I III y? l l 1 I I I I ? V I I I'. I I I I I I I
PEBBLE COUNT
Site: Wells Creek SEPI
OUP
G
E
Party: IPJ & PDB NGINEERING
R
Date: 10116107 PA RTICLE COUNT
CS 2
Inches Particle Millimeters TOT# ITEM % % CUM
Silt/Clay < 0.062 S/C 45 45 80% 80%
Ve Fine .062-.125 3 3 5% 860
Fine .125-.25 S 0 0% 86%
Medium .25-.50 N 1 1 2% 88%
Coarse .50-1.0 D 0 0% 88%
.04-.08 Very Coarse 1.0-2 2 2 4% 91%
.08-.16 Very Fine 2.0-4.0 0 0% 91%
.16-.22 Fine 4-5.7 0 0% 91%
.22-.31 Fine 5.7-8 G 0 0% 91%
.31-.44 Medium 8-11.3 R. 0 0% 91%
.44-.63 Medium 11.3-16 A 0 0% 91%
.63-.89 Coarse 16-22.6 V 0 0% 91%
.89-1.26 Coarse 22.6-32 E 0 0% 91%
1.26-1.77 Very Coarse 32-45 L 2 2 4% 95%
1.77-2.5 Very Coarse 45-64 1 1 2% 96%
2.5-3.5 Small 64-90 1 1 2% 98%
3.5-5.0 Small 90-128 COBBLE 0 0% 98%
5.0-7.1 Large 128-180 0 0% 98%
7.1-10.1 Large 180-256 1 1 2% 100%
10.1-14.3 Small 256-362 0 0% 1000
14.3-20 Small 362-512 0 0% 1000
20-40 Medium 512-1024 BOULDER 0 0% 1000
40-80 Large 1024-2048 0 0% 100%
Bedrock BDRK 0 0% 100%
TOTALS -? 56 100% 100%
Pebble Count, Cross Section 2
Riffle
100%
90%

C 80%
C %
70
? 60%
5
i 50%
i
c 40%
Q) 30%

a 20%
10%
0%,

0.01 0.1 1 10 100 1000 10000
Particle Size (mm)
--}- Cumulative Percent (Year 3) + Percent Item (Year 3)
Cumulative Percent (Year 2) • Percent Item (Year 2)
-31E-Cumulative Percent (Year 1) - Percent Item (Year 1)

? o
l
i i i will ? i i
i i i i i i i i i
PEBBLE COUNT
Site: Wells Creek SEPI
Party: IPJ & PDB `? ENGINEERING GROUP
Date: 10/16107 PARTICLE COUNT
CS 3
Inches Particle Millimeters TOT# ITEM % % CUM
Silt/Clay < 0.062 S/C 14 14 26% 26%
Very Fine .062-.125 0 0% 26%
Fine .125-.25 S 0 0% 26%
Medium .25-.50 N 4 4 8% 34%
Coarse .50-1.0 D 2 2 4% 38%
.04-.08 Very Coarse 1.0-2 5 5 9% 47%
.08-.16 Very Fine 2.0-4.0 0 0% 470
.16-.22 Fine 4-5.7 3 3 6% 53%
.22-.31 Fine 5.7-8 4 4 8% 60%
.31-.44 Medium 8-11.3 R
R
5
5
9% 70%
.44-.63 Medium 11.3-16 A
8
8
15% 85%
.63-.89 Coarse 16-22.6 V
5
5
9% 94%
.89-1.26 Coarse 22.6-32 E 2 2 4% 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 1 1 2% 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%
40-80 Large 1024-2048 0 0% 100%
Bedrock BDRK 0 0% 100%
TOTALS -? 53 100% 100%
Pebble Count, Cross Section 3
Riffle
100%
90%

? 80%
70%

m 60%
50%

c 40%
2 30%
a 20%
10%
0%

0.01 0.1 1 10 100 1000 10000
Particle Size (mm)
--r- Cumulative Percent Year 3)
Percent Item (Year 3
- Cumulative Percent ear 2)
• Percent Item (Year 2

?????? ? ? ? III ?? ? ? •, ? ? ? ? ????? ?????'?

PEBBLE COUNT
Site: Wells Creek SEPI
Party: IPJ & PDB ENGINEERING GROUP
Date: 10/16/07 PARTICLE COUNT
CS 4
Inches Particle Millimeters TOT# ITEM CUM
Silt/Clay < 0.062 S/C 12 12 18% 18%
Very Fine .062-.125 0 0% 18%
Fine .125-.25 SS 0 0% 18%
Medium .25-.50 N 15 15 23% 41%
Coarse .50-1.0 D 5 5 8% 48%
.04-.08 Very Coarse 1.0-2 8 8 12% 61%
.08-.16 Very Fine 2.0-4.0 0 0% 61%
.16-.22 Fine 4-5.7 5 5 8% 68%
.22-.31 Fine 5.7-8 R 2 2 3% 71%
.31-.44 Medium 8-11.3 0 0% 71%
.44-.63 Medium 11.3-16 V 1 1 1 1 2% 2% 73%
.63-.89 Coarse 16-22.6 74%
.89-1.26 Coarse 22.6-32 E 2 2 4 3% 77%
1.26-1.77 Very Coarse 32-45 L 1 1 2% 79%
1.77-2.5 Very Coarse 45-64 2 2 3% 82%
2.5-3.5 Small 64-90 6 6 9% 91%
3.5-5.0 Small 90-128 COBBLE 3 3 5% 95%
5.0-7.1 Large 128-180 3 3 5% 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%
40-80 Large 1024-2048 0 0% 100%
Bedrock BDRK 0 0% 100%
TOTALS 0 66 100% 100%
Pebble Count, Cross Section 4
Pool
100% I

90% I

5 80%
70%
60%

50%

40%
C
P 30%
a 20%
10%
0% I

0.01 0.1 1 10 100 1000 10000
Particle Size (mm)
-}- Cumulative Percent (Year 3) + Percent Item (Year 3)
-+- Cumulative Percent (Year 2) • Percent Item (Year 2)
I 1 1 1 1 1 1 1 I I I l l l il?? - I I I I IIII ? I I I I I I I I I I III I 1 1 1 1 1 1 1
I I 1 1 1 1 1 1 I I I I III I ? I I I I I I I I I I I I III I I I! I I I I
?
V I I I II I I I I I III I V I I I II I I I I!I I I I I I III I I I
I I I II?
I I; I I III I I I I III 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 I I
I I I I I IIII I I I I I III I I I I I I III I I I I I IIII I ( I I I I I I I I l l i l I I
I I I I I III

I I I I I I I I I I I III (

1
I
I
I
I
I
I I I 1 1 1 1 1 1

I
I I I I I I III
II
I
I I I I I I I I I

I
I
I
I
l l i I I
II I ?
I I I I
1 1
I
I
I I
I I I
? I I I
II I III
I
I I I I I I
I I I II
I
? I I I ? I i I I I I I I I I I I I III ? I I i ? II I ? I I I I III I I 11 1 1 I I
? II I II I III I I I I ,i ? 17 II I I II ? ?I I I 'I I I ?i ? II ? I I I II I I I II I ? I I I l
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

PEBBLE COUNT
Site: Wells Creek SEPI
Party: IPJ & PDB ENGINEERING CROUP
Date: 10/17/07 PARTICLE COUNT
CS 5
Inches Particle Millimeters TOT# ITEM % % CUM
Silt/Clay < 0.062 S/C 0 0% 0%
Very Fine .062-.125 0 0% 0%
Fine .125-.25 S 0 0% 0%
Medium .25-.50 N 6 6 12% 12%
Coarse .50-1.0 D 9 9 18% 31%
.04-.08 Ve Coarse 1.0-2 6 6 12% 43%
.08-.16 Very Fine 2.0-4.0 1 1 2% 450
.16-.22 Fine 4-5.7 0 0% 45%
.22-.31 Fine 5.7-8 4 4 8% 53%
.31-.44 Medium 8-11.3 R
R
1
1
2% 55%
.44-.63 Medium 11.3-16 A
4
4
8% 63%
.63-.89 Coarse 16-22.6 V
3
3
6% 69%
.89-1.26 Coarse 22.6-32 E 0 0% 69%
1.26-1.77 Ve Coarse 32-45 L 8 8 16% 86%
1.77-2.5 Ve Coarse 45-64 0 0% 86%
2.5-3.5 Small 64-90 3 3 6% 92%
3.5-5.0 Small 90-128 COBBLE 2 2 4% 96%
5.0-7.1 Large 128-180 2 2 4% 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%
40-80 Large 1024-2048 0 0% 100%
Bedrock BDRK 0 0% 100%
TOTALS -? 49 100% 100%
Pebble Count, Cross Section 5
Pool
100°%
90/o I I 1 1 1 1 1 1 I I I I I IIII I I 1 1 1 1 1 1 I I I I I I I IIII I I I I I III
c 80% ?I
co
70°/ III III 1 1 1 1 1 1 1 1 1 1 1 1 III ! 14
°
III 1 1 1 ! 11'1 I III III II
?5 60% I I I I ? I I I I .III I I I I I I
E 50% IIII III III IIII III'
C
111 ill II IIII ill III
c 40%
? 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 I Ili I I I I I I III I I I I I I I li,
30%
? I ? I I IIII 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 it
d 20% .I
10% ?I IIII III F
I I I I I III I I I I I I 1 1 1 ? I I I I I I I I I I I I I I I I I I I II
0% ITT r
0.01 0.1 1 10 100 1000 10000
Particle Size (mm)
?- Cumulative Percent (Year 3) s Percent Item (Year 3)
---- Cumulative Percent (Year 2) • Percent Item (Year 2)

PEBBLE COUNT
Site: Wells Creek SEPI
Party: IPJ & PDB ENGINEERING GROUP
Date: 10117107 PARTICLE COUNT
CS 6
Inches Particle Millimeters TOT# ITEM % % CUM
Silt/Clay < 0.062 SIC 0 0% 0%
Ve Fine .062-.125 0 0% 0%
Fine .125-.25 S 0 0% 0%
Medium .25-.50 N 0 0% 0%
Coarse .50-1.0 D 7 7 13% 13%
.04-.08 Very Coarse 1.0-2 16 16 29% 41%
.08-.16 Very Fine 2.0-4.0 0 0% 41%
.16-.22 Fine 4-5.7 0 0% 41%
.22-.31 Fine 5.7-8 G 0 0% 41%
.31-.44 Medium 8-11.3 R 7 7 13% 54%
.44-.63 Medium 11.3-16 A 5 5 9% 63%
.63-.89 Coarse 16-22.6 V 10 10 18% 80%
.89-1.26 Coarse 22.6-32 E 6 6 110 91 %
1.26-1.77 Very Coarse 32-45 L 2 2 4% 95%
1.77-2.5 Very Coarse 45-64 1 1 2% 96%
2.5-3.5 Small 64-90 1 1 2% 98%
3.5-5.0 Small 90-128 COBBLE 0 0% 98%
5.0-7.1 Large 128-180 1 1 2% 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%
40-80 Large 1024-2048 0 0% 100%
Bedrock BDRK 0 0% 100%
TOTALS 1, 56 100% 100%
Pebble Count, Cross Section 6
Riffle
100%
90%
80%
CID
70%

60%
LL 50%

c 40%
2 30%
a 20% A( J
10%
0%
. -?
0.01 0.1 1 10 100 1000 10000
Particle Size mm
-Cumulative Percent (Year 3) + Percent Item (Year 3)
-Cumulative Percent (Year 2) • Percent Item (Year 2)
)IF Cumulative Percent (Year 1) a Percent Item (Year 1)

I I 1 1 1 1 1 1 1 I 1 1 1 1 1 1 I I I I I I III I I I 1 1 1 1 1 1 I 1 1 1 1 1 1
I I 1 1 1 1 1 1
I I I I I I I I I
I
I
I I I I I I 1 I I V I I I
I
I
I
I
I I ? I I I I I I
I
I
I I 1 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 1 I
I I I
I I
I I
I I l 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 I I I I I I I I I I
I V I I I I I I I I I I I I I I I I I Ili I li I I I III I I I I I I III I I 11 1! I I
I I I I I I III
II
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 I I I I I
I
I
I I I
I I I I I
'. I
? I
I I I I Ili '. I I I II
? I
II
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 1 1 1 I I I
I ?I I I I 'I I ? I V I I I' i I I 'i 'I I I? 1 I I ?h III 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 ? V I I I
I I I I I I I I III
1 I? ?I I I l I I I I III
I
i? ?'
PEBBLE COUNT
Inches Particle Millimeters
Silt/Clay < 0.062 SIC
Very Fine .062-.125
Fine .125-.25 s
Medium .25-.50 NN
Coarse .50-1.0 D
.04-.08 Verv Coarse 1.0-2
.22-.31 Fine 5.7-8 R
.31-.44 Medium 8-11.3
.44-.63 Medium 11.3-16
.63-.89 Coarse 16-22.6 t
.89-1.26 Coarse 22.6-32
1.26-1.77 Ve 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 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
Particle Size (mm)
-+- Cumulative Percent (Year 3) + Percent Item (Year 3)
-Cumulative Percent (Year 2) • Percent Item (Year 2)
-A Cumulative Percent (Year 1) * Percent Item (Year 1)
0% 19%
0% 19%
4% 23%
2% 25%
25% 50%
0% 50%
2% 52%
0% 52%
10% 62%
10% 71%
8% 79%
6% 85%
2% 87%
4% 90%
8% 98%
2% 100%
0% 100%
0% 100%
0% 100%
0% 100%
0% 100%
90°i°
80°r°
1 00°i°
50%
c 40%
m
v 30%
a 20%
10%
0%
0.01
E P I
ENGINEERING GROUP
10000

PARTICLE COUNT
CS 7
TOT# ITEM % % CUh
10 10 19% 19%
0
0
2 2
1 1
13 13
0
1 1
0
5 5
5 5
4 4
3 3
1 1
2 2
4 4
1 1
0
0
0
0
0
0
0
i ? 5,'
10 100 1000
0.1
Pebble Count, Cross Section 7
Riffle
PEBBLE COUNT
Site: Wells Creek r? SEPI
Party: IPJ & PDB ENGINEERING GROUP
Date: 10/17/07 PARTICLE COUNT
CS 8
Inches Particle Millimeters TOT# ITEM % % CUM
Silt/Clay < 0.062 S/C 17 17 31% 31%
Very Fine .062-.125 0 0% 31%
Fine .125-.25 S 0 0% 31%
Medium .25-.50 N 7 7 13% 44%
Coarse .50-1.0 D 1 1 2% 46%
.04-.08 Ve Coarse 1.0-2 3 3 6% 52%
.08-.16 Very Fine 2.0-4.0 0 0% 52%
.16-.22 Fine 4-5.7 5 5 9% 61%
.22-.31 Fine 5.7-8 G 3 3 6% 67%
.31-.44 Medium 8-11.3 R 7 7 13% 80%
.44-.63 Medium 11.3-16 A 1 1 2% 81%
.63-.89 Coarse 16-22.6 V 3 3 6% 87%
.89-1.26 Coarse 22.6-32 E 2 2 4% 91%
1.26-1.77 Very Coarse 32-45 L 0 0% 91%
1.77-2.5 Very Coarse 45-64 1 1 2% 93%
2.5-3.5 Small 64-90 1 1 2% 94%
3.5-5.0 Small 90-128 COBBLE 0 0% 94%
5.0-7.1 Large 128-180 1 1 2% 96%
7.1-10.1 Large 180-256 2 2 4% 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%
40-80 Large 1024-2048 0 0% 100%
Bedrock BDRK 0 0% 100%
TOTALS 54 100% 100%
Pebble Count, Cross Section 8
Pool
100%
90%
80%

70%
F-
ib 60%

y 50%
i
c 40%
2 30%
a 20%
10%
0%

0.01 0.1 1 10 100 1000 10000
Particle Size (mm)
-+- Cumulative Percent (Year 3) • Percent Item (Year 3)
-Cumulative Percent (Year 2) • Percent Item (Year 2)

..... i 'S'_ `i" ?T I
i I
i
-'( _ ?.?' a # #`

? 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 I I I I I I I I I I I I I I I 1 1 1?
? I I I I III I I I I I I III I I I I I I I I I I I I I I I I I V I I I I' I I I I 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 i I C I I I ? I I I I III i
I V I I I I?
I I I I I I V I I I III
I III
I ? III I III I V I I I III
I I I I I I I I V I I I III I V I I I I I
I I I I IIII I IIII 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 III 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 1 I I I ? ? I I I I I ?I
I ? ? II I II ? Ii I II II II ? II III
? I I I I I II III II II I I I I II III I I I ? II ? IIII ? ? I II l i III
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 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 i
I ?
I I I I I ? ?I ? ? ? ?I ? ??

PEBBLE COUNT
Site: Wells Creek 'e
sGe SEPI
Party: IPJ & PDB , ENGINEERING GROUP
Date: 10/17107 PARTICLE COUNT
CS 9
Inches Particle Millimeters TOT# ITEM % % CUM
Silt/Clay < 0.062 S/C 0 0% 0%
Ve Fine .062-.125 0 0% 0%
Fine .125-.25 S 0 0% 0%
Medium .25-.50 N 0 0% 0%
Coarse .50-1.0 D 2 2 4% 4%
.04-.08 Very Coarse 1.0-2 2 2 4% 9%
.08-.16 Very Fine 2.0-4.0 0 0% 9%
.16-.22 Fine 4-5.7 1 1 2% 11%
.22-.31 Fine 5.7-8 G 2 2 49/. 15%
.31-.44 Medium 8-11.3 r" 4 4 9% 23%
.44-.63 Medium 11.3-16 A 3 3 6% 30%
.63-.89 Coarse 16-22.6 V 0 0% 30%
.89-1.26 Coarse 22.6-32 8 8 17% 47%
1.26-1.77 Ve Coarse 32-45 L
+A? 3 3 6% 53%
1.77-2.5 Very Coarse 45-64 8 8 179/. 70%
2.5-3.5 Small 64-90 8 8 17% 87%
3.5-5.0 Small 90-128 COBBLE 4 4 9% 96%
5.0-7.1 Large 128-180 1 1 2% 98%
7.1-10.1 Large 180-256 1 1 2% 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%
40-80 Large 1024-2048 0 0% 100%
Bedrock BDRK 0 0% 100%
TOTALS -? 47 100% 100%
Pebble Count, Cross Section 9
Riffle
100%
90%
80%
co
H 70%
aB 60%
ii 50%
c 40%
N
30%
Q) 20%
10%
0%
Particle Si7a (mm)
-Cumulative Percent (Year 3) • Percent Item (Year 3)
-Cumulative Percent (Year 2) • Percent Item (Year 2)
-)K-Cumulative Percent (Year 1) u Percent Item (Year 1)
0.01 0.1 1 10 100 1000 10000
PEBBLE COUNT
Site: Wells Creek SEPI
G
E
Party: IPJ & PDB ROUP
NGINEERING
Date: 10117/07 PA RTICLE COUNT
CS 10
Inches Particle Millimeters TOT# ITEM % % CUM
Silt/Clay < 0.062 SIC 9 9 17% 17%
Ve Fine .062-.125 0 0% 17%
Fine .125-.25 S 9 9 17% 35%
Medium .25-.50 N 2 2 4% 38%
Coarse .50-1.0 0 18 18 35% 73%
.04-.08 Very Coarse 1.0-2 9 9 17% 90%
.08-.16 Very Fine 2.0-4.0 0 0% 90%
.16-.22 Fine 4-5.7 0 0% 90%
.22-.31 Fine 5.7-8 G 0 0% 90%
.31-.44 Medium 8-11.3 R 0 0% 90%
.44-.63 Medium 11.3-16 A 0 0% 90%
.63-.89 Coarse 16-22.6 V 0 0% 90%
.89-1.26 Coarse 22.6-32 E 1 1 2% 92%
1.26-1.77 Very Coarse 32-45 L 0 0% 92%
1.77-2.5 Very Coarse 45-64 0 09/. 92%
2.5-3.5 Small 64-90 1 1 2% 94%
3.5-5.0 Small 90-128 COBBLE 0 0% 94%
5.0-7.1 Large 128-180 3 3 6% 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%
40-80 Large 1024-2048 0 0% 100%
Bedrock BDRK 0 0% 100%
TOTALS ? 52 100% 100%
Pebble Count, Cross Section 10
Pool
100%
90%
I
11
7 IIII
80%
7.1-
1
!!
!
m 70%

60%
a5 50%
FL
c 40%
2 30%
a 20%

10%
0%

0.01 0.1 1 10 100 1000 10000
Particle Size (mm)
-? Cumulative Percent (Year 3) + Percent Item (Year 3)
?- Cumulative Percent (Year 2) • Percent Item (Year 2)

I I I I I I III I ITr
I I I I I IIII I I I I - I? r
I
I 1 1 1 1 1 1 1 r n l
I I I I I III.
I I I I I IIII I I I I I III I I I I I I I ii 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 I I III I I I I I III 1 1 1 1 1 IIII I I I I I III
? ? I I I? I ? I ? ? I II 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 II I i I I I l
I I I l i I I I I I I III
C
I ? ? II I I IIII
II ? I I II I i III aI
? II 1 1 1 1 1 ail
I I I I I IIII I I I I I I I II
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 iII
I I I I I I I I I I I I III I I I I I I I;.
I I I I III I I I I I I I I I 1 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 1 1 1 1 1 1
I I I
I I I I I III 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 Ii I I I
I I I I I I I I
I I I I IIII I? I I? I III ? 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
PEBBLE COUNT
Site: Wells Creek SG
Party: IPJ & PDB ENG
INEERING GROUP
,
Date: 10117/07 PARTICLE COUNT
CS 11
Inches Particle Millimeters TOT# ITEM 0/6 0/o CU M
Silt/Clay < 0.062 S/C 5 5 9% 9%
Very Fine .062-.125 0 0% 9%
Fine .125-.25 S 0 0% 9%
Medium .25-.50 N 1 1 2% 11%
Coarse .50-1.0 D 4 4 7% 19%
.04-.08 Very Coarse 1.0-2 11 11 20% 39%
.08-.16 Very Fine 2.0-4.0 1 1 2% 41%
.16-.22 Fine 4-5.7 2 2 4% 44%
.22-.31 Fine 5.7-8 2 2 4% 48%
.31-.44 Medium 8-11.3 R
R
4
4
7% 56%
.44-.63 Medium 11.3-16
A 2 2 4%
59%
.63-.89 Coarse 16-22.6 5 5 9% 69%
.89-1.26 Coarse 22.6-32 E
E 5 5 9% 78%
1.26-1.77 Very Coarse 32-45 L 2 2 4% 81%
1.77-2.5 Very Coarse 45-64 2 2 4% 85%
2.5-3.5 Small 64-90 2 2 4% 89%
3.5-5.0 Small 90-128 COBBLE 3 3 6% 94%
5.0-7.1 Large 128-180 2 2 4% 98%
7.1-10.1 Large 180-256 1 1 100%
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%
40-80 Large 1024-2048 0 0% 100%
Bedrock BDRK 0 0% 100%
TOTALS -? 54 100% 100%
Pebble Count, Cross Section 11
Riffle
100°o

90% 1

80% I I
m 70%

60%
E 50%

40%
2 3 0%
a 20%
10%

0%

0.01 0.1 1 10 100 1000 10000
Particle Size (mm)
-?-Cumulative Percent (Year 3) . Percent Item (Year 3)
---- Cumulative Percent (Year 2) ? Percent Item (Year 2)
-CIE- Cumulative Percent (Year 1) • Percent Item (Year 1)

I I I I IIII I I I I I I I I I I I
? I I 1 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 1 1 1 1 I I I I I I I I
1 1 1 I I I I I 1 1 1 1 1 1 I I 1 1 1 1 1 1
I
I I I I I I I I I I 1 1 1 1 1 1 I I III I 1 1 1 1 1 1 I I 1 1 1 I I I I 1 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 1 1 1 1 1 I I I I I I I I
I I I IIII
1
I I I ICI I I I I I I I IIII V I I I ICI I I I I I III
I
I I I III
I 1 1 1 1 1 I I I l l i
I I I I I I I
I I I I I I I I I I I I
? I 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
I 1 1 1 1 1 1
I I I I I I I I I I I 1 1 1 1 1 I I I I I I I
1 I I I I I I I I I I 1 '.
I ? V I I I I I I I- I I I 1 1 1 ? I I I I I I I I I i I I I III I I ! I I III
? I i II 4
". I I I? ? I I I I • I I I I I I I I I I I

PEBBLE COUNT
Site: Wells Creek SEPI
Party: IPJ & PDB ?? ENGINEERING GROUP
Date: 10/17107 PARTICLE COUNT
CS 12
Inches Particle Millimeters TOT# ITEM % % CUM
Silt/Clay < 0.062 S/C 12 12 25% 25%
Very Fine .062-.125 0 0% 25%
Fine .125-.25 S 0 0% 25%
Medium .25-.50 N 6 6 13% 38%
Coarse .50-1.0 D 25 25 52% 90%
.04-.08 Very Coarse 1.0-2 5 5 10% 100%
.08-.16 Very Fine 2.0-4.0 0 0% 100%
.16-.22 Fine 4-5.7 0 0% 100%
.22-.31 Fine 5.7-8 G 0 0% 100%
.31-.44 Medium 8-11.3 R 0 0% 100%
.44-.63 Medium 11.3-16 V 0 0% 100%
.63-.89 Coarse 16-22.6 0 0% 100%
.89-1.26 Coarse 22.6-32 E 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 00 100%
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%
40-80 Large 1024-2048 0 0% 100%
Bedrock BDRK 0 0% 100%
TOTALS -? 48 1009/6 100%
Pebble Count, Cross Section 12
Pool
100% 77f_.._,._ #r!* -? * rF
90% 7,1

80%
70%

8 60%

ii 50%

5 40%
2 30%
20% -

10%
0% ,

0.01 0.1 1 10 100 1000 10000
Particle Size (mm)
umulatve Percent (Year 3) * Percent Item (Year 3)
[t
i
Cumulat
ve Percent (Year 2) * Percent Item (Year 2)
Appendix C
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