Geotechnical Evaluation (2)OEOTECHNICAL EVALUATION OF
PROPOSED TREE REMOVAL
001'�.i�.v 9110 Olympic View Drive
Edmonds, Washington
Project No. 1751.00
of �►� January 25, 2017
Prepared for:
Jan and Bill Munson
Prepared by:
7GA
Zipper Geo Associates, LLC
Geotechnical and Environmental Consultants
19023 36t" Avenue West, Suite D
Lynnwood, WA 98036
Zipper Geo Associates, LLC
Geotechnical and Environmental Consulting
Project Number 1751.00
January 25, 2017
Jan and Bill Munson
18130 Sunset Way
Edmonds, Washington 98026
Subject: Geotechnical Evaluation of Proposed Tree Removal
Lane Residence Site
9110 Olympic View Drive
Edmonds, Washington 98026
Dear Mr. and Mrs. Munson,
In accordance with your request and written authorization, Zipper Geo Associates, LLC (ZGA)
has completed the subsurface exploration and geotechnical evaluation of the Proposed Tree
Removal at 9110 Olympic View Drive in Edmonds, Washington. This report presents the findings
of our site reconnaissance and subsurface exploration, and our geotechnical recommendations
for the project. Our work was completed in general accordance with our Short Form Service
Agreement (Proposal No. P16306) dated October 26, 2016. We appreciate the opportunity to be
of service to you on this project. If you have any questions concerning this report, or if we may be of
further service, please contact us.
Sincerely,
Zipper Geo Associates, LLC
�E vv a shf
1/2s/1: a�
1783�*//e`er/
,TAMES P. GEORGIS
James P. Georgis, L.E.G.
Principal
Copies: Addressee (1)
Thomas A. Jones, P.E.
Principal
19023 36th Avenue West, Suite D Lynnwood, WA 98036 (425) 582-9928
TABLE OF CONTENTS
INTRODUCTION........................................................................................................
SITE DESCRIPTION...................................................................................................
PROJECTUNDERSTANDING...................................................................................
SITE RECONNAISSANCE..........................................................................................
SUBSURFACE CONDITIONS....................................................................................
Published Geologic Mapping...................................................................................
SoilConditions........................................................................................................
GroundwaterConditions..........................................................................................
CONCLUSIONS AND RECOMMENDATIONS............................................................
General...................................................................................................................
Geologic Hazard ECA Considerations.....................................................................
Slope Stability Considerations.................................................................................
Temporary Erosion Control Considerations.............................................................
General Steep Slope Considerations.......................................................................
CLOSURE..................................................................................................................
FIGURES PREPARED BY ZGA
Figure 1 — Site and Exploration Plan
APPENDICES
Appendix A — Subsurface Exploration Procedures and Logs
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............... 1
............... 2
............... 2
............... 3
........... 4
......... 4
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......... 5
............... 6
7
GEOTECHNICAL EVALUATION OF PROPOSED TREE REMOVAL
LANE RESIDENCE SITE
9110 OLYMPIC VIEW DRIVE
EDMONDS, WASHINGTON
Project No. 1751.00
January 25, 2017
INTRODUCTION
This report documents the surface and subsurface conditions encountered at the site and our
geotechnical evaluation of the proposed tree removal at 9110 Olympic View Drive in Edmonds,
Washington. The project description, site conditions, and our geotechnical conclusions and
recommendations are presented in the text of this report. Supporting data including detailed
exploration logs, field exploration procedures, and other supporting information are presented as
appendices.
Our geotechnical scope of services for the project included a document review, site
reconnaissance, subsurface evaluation, geotechnical analysis, and preparation of this report. The
subsurface evaluation consisted of completing two hand auger explorations (designated HA-1 and
HA-2) located near the tree proposed for removal. The hand auger explorations extended about 3
to 13 feet below the existing ground surface.
SITE DESCRIPTION
The site is located at 9110 Olympic View Drive in Edmonds, Washington. The site is a single-
family residential property supporting a centrally located, one-story, wood -framed residence with
a daylight basement and attached garage. A concrete driveway is located on the east side of the
residence and a concrete basement level patio is located on the west side of the residence. The
site is bounded to the north by a single-family residential development, to the south and east by
Sunset Way, and to the west by Olympic View Drive. The residence is generally surrounded by
trees and shrubs with several large diameter cedar trees located in the northwestern portion of
the site. The approximate layout of the western portion of the site is presented on the enclosed
Site and Exploration Plan, Figure 1.
PROJECT UNDERSTANDING
The site is mapped by the City of Edmonds as being within Erosion and Landslide Geologic
Hazard Areas. Specifically, a majority of the site is mapped as having a Severe Erosion Hazard
with 15 to 40 percent slopes, while a portion of the back yard (between the residence and Olympic
View Drive) is mapped as being in a Landslide Hazard Area due to slopes of 40 percent or more.
We understand that you are proposing the removal of one cedar tree with a trunk diameter on the
order of 2'/2 to 3 feet from the northwestern portion of the site. The approximate location of the
tree proposed for removal is shown on Figure 1. This report has been prepared to evaluate
potential risks to Geologic Hazard Areas and the site relative to the removal of the identified cedar
tree.
Zipper Geo Associates LLC
Proposed Tree Removal, 9110 Olympic View Drive, Edmonds, WA
Project No. 1751.00
January 25, 2017
SITE RECONNAISSANCE
We completed a reconnaissance of the property and immediate vicinity during a site visit
completed on December 30, 2016. The purpose of the reconnaissance was to identify surficial
features of site conditions such as the presence or absence of groundwater seepage, the
presence or absence of surface erosion, indications of past slope instability, indications of past
land use, the type, extent, and condition of existing vegetation, and the location of the tree
identified for removal, and other site features that may be affected by the planned tree removal.
The enclosed Site and Exploration Plan, Figure 1, shows the approximate location of some of the
observed site features. A summary of our site observations is presented below.
The site is located on a west -facing slope with an estimated total property relief of about 15 to 20
feet. The backyard includes a relatively level bench which extends north from the backyard
concrete patio and appears to be the result of past grading activities. What appears to be a cut
slope extends down to the east side of the bench with a slope inclination of about 30 degrees (58
percent) and about 4 feet of topographic relief. Near the proposed tree removal area, a slope
extends down from the west side of the bench to Olympic View Drive. This slope has two distinct
slope inclinations. The upper portion of the slope, where the tree proposed for removal is located,
has a slope inclination of about 15 to 20 degrees (27 to 36 percent) and about 5 to 7 feet of relief.
Slightly west of the property line, the slope angle increases to about 40 to 60 degrees (84 to 173
percent) with about 6 to 8 feet of relief. This steeper portion of the slope is adjacent to Olympic
View Drive and appears to be a cut associated with the road construction.
The tree proposed for removal consists of a 2% to 3-foot diameter cedar located in the back yard
about midway between the residence and Olympic View Drive. This portion of the back yard
supports several other cedar trees with trunk diameters ranging from about 1 to 3 feet and several
tree stumps ranging from about 1 to 3 feet in diameter. The cedar trees are near vertical with no
prominent lean or curved trucks (which is often indicative a past slope movement) and appear to
be in reasonably good condition (ZGA staff are not license arborists). In addition, the orientation
of the tree stumps is not suggestive of past slope movement. The area includes a moderately
well -developed understory of ferns, rhododendron, grasses, and other low -growing ground cover,
along with a surficial mantling of duff. We did not observe any surface water flow or indications
of groundwater seepage at the time of our site visit, or hydrophilic vegetation that would indicate
the presence of springs or seeps. We did not observe any significant indication of surficial
erosion, such as rills or sediment deposits at the toe of the slope (eastern edge of Olympic View
Drive).
SUBSURFACE CONDITIONS
Published Geologic Mapping
We assessed the geologic setting of the site and surrounding vicinity by reviewing The Geologic
Map of the Edmonds East and Portion of the Edmonds West Quadrangle, Washington, U.S.
Page 2
Zipper Geo Associates, LLC
Proposed Tree Removal, 9110 Olympic View Drive, Edmonds, WA
Project No. 1751.00
January 25, 2017
Geological Survey Map MF-1541, 1983. The site is mapped near the contact between
Quaternary Vashon Till (Qvt) deposits and the underlying Quaternary Advance Outwash (Qva)
deposits. The Vashon Till is described as a compact, poorly sorted mixture of clay, silt, sand,
pebbles, cobbles, and boulders in variable amounts. The Advance Outwash is described as
mostly clean, compact, pebbly sand with increasing amounts of gravel higher in the stratigraphic
section.
We also reviewed the United Stated Department of Agriculture Natural Resources Conservation
Service (NRCS) on-line soils mapping application. The NRCS maps the site as Alderwood
gravelly sandy loam (15 to 30 percent slopes). The Alderwood series is described as being
derived from glacial drift and/or glacial outwash deposits.
Soil Conditions
The subsurface exploration for this project included two hand auger explorations (HA-1 and HA-
2) located near the tree proposed for removal. The hand auger explorations extended approximately
3 to 13 feet below the existing ground surface. The approximate exploration locations are shown
on the enclosed Site and Exploration Plan, Figure 1.
Soils were visually classified in general accordance with the Unified Soil Classification System.
Detailed, descriptive logs of the subsurface explorations and the procedures utilized in the
subsurface exploration program are presented in Appendix A. Generalized descriptions of
subsurface soil conditions observed at the exploration locations are presented below. The
stratification and horizontal extent of the soil types observed in our explorations may vary between
explorations. Stratification boundaries on the exploration logs represent the approximate depth
of changes in soil types, although the transition between materials may have been gradual.
Please refer to the hand auger logs in Appendix A for a more detailed description of the conditions
encountered at the exploration locations.
Hand auger HA-1 was completed on a relatively level bench extending from the backyard concrete
patio and was about 15 feet southeast of the tree proposed for removal. In general, the exploration
encountered about 3 inches of topsoil over very loose to loose sand with some silt and trace fine
gravel interpreted as fill. The fill extended to a depth of about 13/ feet and was underlain by about
3 inches or relic topsoil consisting of very loose sand with silt, fine organics, and fine roots. Soil
interpreted as Advance Outwash deposits were encountered below the relic topsoil (at a depth of
about 2 feet) and extended to the total depth explored of 13 feet below existing grade. In general,
the Advance Outwash deposits consisted of loose grading to dense sand with trace to some silt and
trace fine gravel.
Hand auger HA-2 was completed about 6 feet east of the tree proposed for removal. The exploration
encountered about 7 inches of topsoil underlain by Advance Outwash deposits which extended to
Page 3
Zipper Geo Associates, LLC
Proposed Tree Removal, 9110 Olympic View Drive, Edmonds, WA
Project No. 1751.00
January 25, 2017
the total depth explored of 3 feet below existing grade. In general, the Advance Outwash deposits
consisted of loose grading to medium dense sand with trace to some silt and trace fine gravel.
Groundwater Conditions
Groundwater seepage was not observed in the hand auger explorations which extended to a
maximum depth of about 13 feet below grade. We did not observe soil mottling that might be
indicative a seasonal perched groundwater conditions within the exploration depth. These
observations represent groundwater conditions at the time of the field exploration. Groundwater
conditions should be expected to fluctuate due to changes in season, precipitation patterns, site
utilization, on -site or off -site irrigation activities, and other on- and off -site factors.
CONCLUSIONS AND RECOMMENDATIONS
General
Based on the results of our site reconnaissance, document review, subsurface exploration, and
geotechnical analysis, it is our opinion that removal of the proposed cedar tree is feasible from a
geotechnical perspective. Provided that the conditions and recommendations contained within this
report are satisfied, it is our opinion that the proposed tree removal will not increase the potential
for soil movement and the risk of damage to existing structures, the site, and to adjacent
properties from soil instability will not be increased. The following sections provide a discussion
regarding City of Edmonds regulated ECAs and recommendations to reduce risks associated with
the planned cedar tree removal.
Geologic Hazard ECA Considerations
The site is mapped by the City of Edmonds as containing Erosion Hazard and Landslide Hazard
Environmental Critical Areas (ECAs). We understand that the City has requested a geotechnical
evaluation of the proposed cedar tree removal to assess the risk to regulated Geologic Hazard
ECAs and their associated buffers, as defined in Chapter 23.80 of the City of Edmonds Municipal
Code (EMC) that may result from the planned tree removal and provide recommendations to
mitigate identified risks.
Erosion Hazard Areas: City of Edmonds maps generally identify the majority of the site as an
Erosion Hazard Area. Section 23.80.020A of the EMC identifies erosion hazard areas as those
areas containing soils that may experience severe to very severe erosion hazard. This group of
soils include, but are not limited to, the following when they occur on slopes of 15 percent or greater.
• Alderwood Soils (15 to 25 percent slopes)
• Alderwood/Everett series (25 to 70 percent slopes)
• Everett series (15 to 25 percent slopes)
The site is mapped by the NRCS as Alderwood soils (soils derived from glacial till and/or outwash)
and slope inclinations near the proposed tree removal range from of about 27 to 36 percent. As
Page 4
Zipper Geo Associates, LLG
Proposed Tree Removal, 9110 Olympic View Drive, Edmonds, WA
Project No. 1751.00
January 25, 2017
such, it is our opinion that the tree removal area is consistent with the EMC criteria for an Erosion
Hazard Area.
Landslide hlazard Areas: City of Edmonds maps identify a portion of the back yard (between the
residence and Olympic View Drive) as being in a Landslide Hazard Area. Section 23.80.020B of
the EMC defines landslide hazard areas as areas potentially subject to landslides based on a
combination of geologic, topographic, and hydrologic factors. These factors include any slope of
40 percent or steeper that exceeds a vertical height of 10 feet over a 25-foot horizontal run. This
includes modified slopes (where there are breaks in slope) that meet overall average steepness
and height criteria. Based on our visual observations and field measurements, it appears that the
modified slope (over -steepened cut associated with Olympic View Drive) that extends up to the
proposed tree removal area with a grade break is consistent with the EMC criteria for a Landslide
Hazard Area.
Risk Evaluation Summa : Provided that the conditions and recommendations contained within
this report are satisfied, it is our opinion that the removal of the identified cedar tree will not
increase the potential for soil movement and the risk of damage to existing structures, the site,
and to adjacent properties from soil instability will not be increased.
Slope Stability Considerations
Tree root systems provide erosion protection and bio-reinforcement for slope soils, thereby
increasing the strength of the soil mass and reducing the risk of slope instability. However, the
weight of the tree can increase the forces tending to drive slope instability and the rocking action
of the root mass during high winds can result in loosening of the slope soils, resulting in a
reduction in slope stability, particularly for large, heavy trees located on or near the crest of steep
slopes. There is some debate in the scientific community regarding the relative contributions of
these different factors to slope stability, but the general consensus appears to be that under most
conditions the presence of trees (in particular the bio-reinforcement they provide) results in a net
improvement to slope stability.
Some species of trees readily sprout after cutting (often referred to as stump -sprouting) thereby
maintaining the reinforcing properties of the root system and decreasing the weight of the tree on
the slope. Cedar is listed in the 1993 publication Vegetation Management: A guide for Puget
Sound Bluff Property Owners, produced by the Washington State Department of Ecology
(Publication 93-31) as being capably of stump -sprouting. However, in our experience, cedar trees
of the size proposed for removal at this site do not always survive the cutting process and may
not stump -sprout. Based on our evaluation of the site conditions, it is our opinion that the decay
of the tree root system if the tree does not stump -sprout could result in a minor reduction in the
stability of the slope near the removed trees relative to shallow surficial sliding. Research
indicates that it typically takes about 3 to 5 years to realize a significant reduction in the bio-
reinforcement provided by a tree that does not survive cutting.
Page 5
Zipper Geo Associates. LLC
Proposed Tree Removal, 9110 Olympic View Drive, Edmonds, WA
Project No. 1751.00
January25, 2017
As a precautionary measure, we recommend that the cedar stump be left in place and that the
tree removal plan include new plantings near the stump. We recommend that native woody
shrubs or small trees be considered to reduce the need for watering and keep the weight and
wind loading characteristics of the new growth to reasonable levels as it matures. The following
table provides some plant species that could be considered to reduce the potential for erosion
and increase resistance to shallow surficial sloughing. The information presented below is a
relatively small sampling of plant species discussed in the 1993 publication Slope Stabilization
and Erosion Control using Vegetation, produced by the Washington State Department of Ecology
(Publication 93-30). The table below is by no means intended to be comprehensive or restrictive
relative to the selection of appropriate plantings.
POTENTIAL PLANT SELECTION GUIDE
Plant Name
Form & Habit Mature
Size
Evergreen shrub; Height: 4'
spreads by runners to Spread: 3'
form thicket
Rooting
Characteristics
Fibrous,
Shallow depth.
Recommended
S acin
2'+
Snowberry
(Symphoricarpos Albus)
Salal
(Gaultheria Shallon)
Evergreen shrub; Height: 3'
spreads by runners to Spread: 3'
form thicket
Fibrous,
Shallow depth.
2'+
Evergreen Huckleberry
Oemleria Cerasiformis
Evergreen shrub; does Height: 6'
not spread Spread: 3'
Deciduous shrub; does Height: 10'+
not always spread Spread: 6'
a re5slVE?I
Deciduous shrub; does Height: 15'+
not always spread Spread: 10'
a ressive!
Deciduous shrub; does Height: 20'+
not spread Spread: 15'
and Erosion Control using Vegetation,
1993.
Fibrous,
Shallow depth.
Fibrous,
Moderate depth.
Fibrous,
Moderate depth.
Fibrous,
Moderate depth.
Washington State
3'+
4'+
Ocean Spray
(Holodiscus Discolor)
Vine Maple
(Acer Circinatum)
Hooker Willow
Salix Hookeriana
Reference: Slope Stabilization
Ecology Publication 93-30.
8'+
3'+
Department of
Temporary Erosion Control Considerations
We anticipate that the tree removal process will likely result in disturbance of the ground surface
and a temporary increase in the potential for erosion. We therefore recommend that the tree
removal service utilize means and methods intended to minimize ground disturbance. In addition,
we recommend that soils exposed within Geologic Hazard Areas and their buffers be covered
with a temporary erosion control material, such as sterile straw or arborist mulch.
General Steep Slope Considerations
Owners of properties containing or adjacent to steep slopes should recognize that soil loss or
downslope displacement from steep slopes is a naturally occurring mass wasting process, and
that some soil loss from steep slopes should be expected over time, particularly in response to
Page 6
Zipper Geo Associates. LLC
Proposed Tree Removal, 9110 Olympic View Drive, Edmonds, WA
Project No. 1751.00
January 25, 2017
episodic severe storm events. The conclusions and recommendations presented in this report are
intended to allow for the removal of the identified cedar tree while maintaining the existing stability
of the site slopes. The findings presented in this report should not be interpreted as indicating that
the site steep slopes will be stable under all possible future conditions.
CLOSURE
The analysis and recommendations presented in this report are based, in part, on the explorations
completed for this study. The number, location, and depth of the explorations were completed
within the constraints of budget and site access so as to yield the information to formulate our
recommendations.
This report has been prepared for the exclusive use of Jan and Bill Munson, and their agents, for
specific application to this project and has been prepared in accordance with generally accepted
geotechnical engineering practices. No warranties, express or implied, are intended or made.
Site safety is the responsibility of others. In the event that changes in the nature, design, or
location of the tree removal as outlined in this report are planned, the conclusions and
recommendations contained in this report shall not be considered valid unless Zipper Geo
Associates, LLC reviews the changes and either verifies or modifies the conclusions of this report
in writing.
Page 7
APPROXIMATE
PROPERTY -
LINE LOCATION
2.5' STUMP
30° SLOPE
4' RISE
9110 OLYMPIC VIEW DRIVE
CONC.
PATIO
LEGEND
HA-1
HAND AUGER NUMBER AND
APPROXIMATE LOCATION
O
APPROXIMATE LOCATION
OF TREE STUMP
APPROXIMATE LOCATION
OF LIVE TREE
1ST FLOOR DECK
OVERHANG
2 X 1' STUMPS 2' STUMP
-- RELATIVELY
` LEVEL BENCH
l s HA-1
° `'F-""u% T STUMP
15-20' SLOPE 2.5 TO T CEDAR PROPOSED
HA-2� FOR REMOVAL
PROP. _
CORNER - - - -- -
STAKE 1.5' CEDAR 2' CEDAR
1' CEDAR 20-40°
40-60' - •
SLOPE CUT T CEDAR
OYLMPIC VIEW DRIVE
APPROXIMATE
EDGE OF ASPHALT
PAVEMENT
20 0 10 20
SCALE IN FEET
APPENDIX A
FIELD EXPLORATION PROCEDURES AND LOGS
FIELD EXPLORATION PROCEDURES
Field Exploration Description
Our field exploration for this project included two hand auger explorations completed on
December 30, 2016. The approximate exploration locations are presented on the enclosed Site
and Exploration Plan, Figure 1. Exploration locations were determined in the field by measuring
distances from existing site features with a fiberglass tape. As such, the exploration locations
should be considered accurate only to the degree implied by the means and methods to establish
them. The following sections describe our procedures associated with the explorations.
Descriptive logs of the explorations are enclosed in this appendix.
Hand Auger Procedures
An engineering geologist from our firm advanced a 3.5-inch diameter auger by hand, continuously
observing the soil cuttings as they were retrieved. Representative portions of the soils retrieved
were placed in moisture tight containers and returned to our laboratory for further visual
classification and testing.
The enclosed hand auger logs indicate the vertical sequence of soils and materials encountered
in each exploration, based primarily on our field classifications and supported by our subsequent
laboratory testing. Where a soil contact was observed to be gradational or undulating, our logs
indicate the average contact depth. Our logs also indicate the approximate depths of any sidewall
caving or groundwater seepage observed in the explorations, as well as all sample numbers and
sampling locations.
ZIPPER GEO ASSOCIATES, LLC
19023 361 Avenue West, Suite D, Lynnwood, Washington 98036
HAND AUGER HA-1
Location: See Site and Exploration Plan, Figure 1
Approximate Ground Elevation: NA
Project: Lane Residence Tree Removal
Project No: 1751.00
Date Excavated: 12-30-2016
Depth
(ft)
Material Description
Sample
Nc
%M
Testing
Very loose, wet, dark brown SAND, with silt, fine organics,
and Fine roots (Topsoil) -'
Very loose to loose, moist, light brown SAND, some silt, trace fine
gravel (Fill)
-------------------------------------------------------
Very loose, moist, dark brown SAND, with silt, fine
'`. _or yics�and_fi_nerootsSRelicTopsoilj_______________''
Loose to medium dense, moist, light gray -brown SAND, trace to
some silt, trace fine gravel. (Glacial Advance Outwash)
Grades to medium dense at about 4 feet
Grades to dense at about 8 feet
ger completed at 13 feet on 127012016.
ndwater observed at time of exploration.
FNong observed.
1
2
S-1 @ 1.5'
4
3
4
S-2 @ 4'
15
5
6
7
8
S-3 @ 8'
30
9
10
11
12
Note: Nc is the Dynamic Cone Penetrometer blow count per ASTM
Special Publication #399.
ZIPPER GEO ASSOCIATES, LLC
19023 361 Avenue West, Suite D, Lynnwood, Washington 98036
HAND AUGER HA-2
Location: See Site and Exploration Plan, Figure 1
Approximate Ground Elevation: NA
Project: Lane Residence Tree Removal
Project No: 1751.00
Date Excavated: 12-30-2016
Depth
(1't)
Material Description
Sample
Nc
%M
Testing
Very loose, wet, dark brown SAND, with silt, fine organics, and
fine roots (Topsoil)
------------------------------------------------------
Loose grading to medium dense, moist, light gray -brown SAND,
trace to some silt, trace fine gravel (Glacial Advance Outwash)
2
3
S-1 @ 2.5'
14
Hand auger completed at 3 feet on 12/30/2016.
No groundwater observed at time of exploration.
No caving observed.
4
5
6
7
8
9
10
11
12
Note: Nc is the Dynamic Cone Penetrometer blow count per ASTM
Special Publication #399.
Zipper Geo Associates, LLC
19023 - 36th Avenue West, Suite D
Lynnwood, WA 98036
425.582.9928
Federal Tax ID # 45-4956075
INVOICE
Jan and Bill Munson January 27, 2017
18130 Sunset Way
Edmonds, WA 98026
Invoice 1795
Re: Billing for Geotechnical Professional Services
Proposed Tree Removal at 9110 Olympic View Drive, Edmonds, WA
Zipper Geo Associates Project No. 1751.00
Invoice Period December 12, 2016 through January 27, 2017
Date
Professional
Hours
Services Provided
12/12/2016
Stephen Miller
1.00
Mark siie for utility locate
12/12/2016
James P. Georgis
1.00
Project startup & One -Call
12/28/2016
James P. Georgis
0.50
Review regional geology
12/30/2016
James P. Georgis
4.00
Site reconnaissance & hand augers
12/30/2016
James P. Georgis
0.50
Prepare exploration logs
01/03/2017
Stephen Miller
1.00
Drafting
01/03/2017
James P. Georgis
1.00
Review DNR data and City code
01/24/2017
James P. Georgis
5.50
Report Preparation
01/27/2017
Tom Jones
0.25
Report Review
14.76
Professional Classification Total Hours Rate/ Hour Amount Billed
Stephen Miller Field Engineer 1.50 $85.00 $127.50
Tom Jones Principal 0.25 $170.00 $42.50
James Georgis Senior Geologist 8.00 $130.00 $1,040.00
James Georgis Staff Geologist 5.00 $95.00 $475.00
14.75 $1,686.00
Mileage Date Description Miles Rate/Mile
12.30.2016 Mileage 15 $0.535 $8.03
Total Expenses $8.03
Amount Due This Invoice $1,693.El
Authorized Budget per Agreement: $1,710.00
Previously invoiced Amount: $0.00
Current Invoiced Amount: $1,693.03 (�
Authorized Budget Remaining: $16.97 I
By:
James Georgis, Zipper Geo Associates, LLC