HomeMy WebLinkAboutWQ0018708_Hydrogeological Investigation_20010425•
OR" THE
_LAKES;; NORTH=CAROLI
M _PROJECT N030198:
pplied Keoure
May 1,.200:1
NCDENR, DWQ
Groundwater Section
Attn.: Mr: Art Barnhardt
Wachovia Building Suite 714
Fayetteville; North Carolina 2830.1
Hydrogeologic}nuestigation'
...Bay Tree:Lake§,_
Spray,- Irrigation Field F.
-Enclosed _is one:original hydrogeological..reportfor.the referenced.site:_;Do not hesitate to
call if you have questions or. require further information:
Sincerely
amen L. Cornette;, P.G.
roject Manager
•
.NCDENR, DWQ
Permitting Section
Attn. Mr. IA: Josh'
P..0. Box29535;
Raleigh,.North Carolina27626-0535,.v/ages-;
I3c* 882 '
Hampstead, Nc,28443
910.270.2919
'FAX 270.2988 -
REPRODUCTIONS
This report has been prepared on behalf of and exclusively for the use of the Bay Tree
Lakes. This report and findings contained herein shall not,' 41 whole or in part, be
reproduced, disseminated or conveyed to any parties other than Bay Tree Lakes, or be
used or relied upon by any other, party, in whole or in part, without Bay Tree Lakes or
Applied Resource Management; PC's prior consent.
TABLE OF CONTENTS
Page
1.0 INTRODUCTION/PURPOSE 1
2.0 METHODS 1
A. MONITORING WELL DRILLING AND CONSTRUCTION 1
B. SURVEYING 2
C. MONITORING WELL DEVELOPMENT , 2
D. " MONITORING WELL YIELD TESTING , 2
E. MONITORING WELL GAUGING , 3
F. MONITORING WELL AQUIFER TESTING 3
3.0 FINDINGS OF INVESTIGATION 5
A. SITE GEOLOGY 5
B. SITE HYDROGEOLOGY 6
1. Depth to Groundwater 6
2. Groundwater Flow Direction and Velocity: 6
3. Surficial Aquifer Yield 6
4. Hydraulic Conductivity 6
5. Transmissivity 7
6. Storativity 7
4.0 LIMITATIONS OF THE INVESTIGATION 7
•TABLE
TABLE 1 - GROUNDWATER ELEVATIONS AS OF gt1/12/01
TABLE 2 SURFICIAL AQUIFER CHARACTERISTICS SUMMARY
FIGURES
FIGURE 1 SITE VICINITY MAP
FIGURE 2 SITE MAP WITH TEST WELL LOCATIONS
FIGURE 3 GROUNDWATER CONTOURS AS OF 4/12J01
(
1
TABLE OF CONTENTS
cont'd
APPENDICES
APPENDIX A BORING . LOGS, AS -BUILT WELL DETAILS, NORTH
CAROLINA WELL CONSTRUCTION RECORDS
APPENDIX B TIME VS. WATER LEVEL PLOTS
APPENDIX C SLUG TEST PLOTS AND RESULTS'
APPENDIX D - CALCULATIONS
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HYDROGEOLOGICAL INVESTIGATION
FOR THE
BAYTREE LAKES
._SPI3AY-IRRIGATIPN FIELD
BAY TREE LAKES, NORTH CAROLINA.
ARM PROJECT NO. 0108
PREPARED FOR:
BAY TREE' LAKES
April 25, 2001
1.0 INTRODUCTION/PURPOSE
(Refer to Figure 1)
The area of investigation is located north of Bay Tree Lake, north of NC Highway
41, near White Lake, North Carolina. The primary goal and purpose of this
investigation and report isto identify and determine hydrogeplogical characteristics
of the surficial aquifer beneath the site, as required for the installation and
construction of a large volume on -site wastewater dispOsal system.
2.0 METHODS
A. MONITORING WELL DRILLING AND CONSTRUCTION.
(Refer to Figure 2 and Appendix A)
Monitoring wells are installed under applicable licensing requirements, and
are designed and constructed in accordance with accepted standards and
practices.
--A total .of four shallow Type I monitoringivvells (T-1 through* T-4) were
installed to determine groundwater characteristics.The four wells were
installed at locations which best represent the over all site geology and
groundwater characteristics. All monitoring weals were installed utilizing
hollow -stern augers to a depth of 25 feet below land surface (BLS).
April 25, 2001
Subsurface soil and Sediment samples were logged utilizing spit -spoon
samples. Subsurface materials were described in the field using
visual/manual techniques as described in:ASTM' D-2487 and D-2488, and
a boring log for each. borehole Was produced.
All wells were constructed .in accordance with NCAC T15A:02C "Well
Construction Standards"
B. SURVEYING
A base map of the site was adapted from a surveyed map prepared by
Charles L. Matthis Surveying, P.A. Horizontal well locations and temporary
benchmark elevations were determined by Charles L. Matthis Surveying,
P.A. Temporary. benchmarks (TBM) established by Charles L. Matthis
surveying, P.A. were used to provide a vertical datum to reference
monitoring well top of casing and water level measurements. All water table
measurements were referenced to the established datum to determine
groundwater flow direction.
C. MONITORING WELL DEVELOPMENT
Monitoring wells were developed utilizing an air actuated doublediaphragm
pump. Each well was developed utilizing a 20 .foot drop pipe which was
sealed into the well casing with a sanitary well seal. The well seal was used
in order to establish the maximum communication across the borehole wall
between the well and the aquifer, maximizing the well development. Each
well was developed until the water was clear. Groundwater turbidity was
monitored throughout the well development to ensure good borehole
cleaning.
D. MONITORING WELL YIELD TESTING
Well yield was measured throughout the development of each well to
determine when the well was providing its maximum capacity. Yield was
determined immediately prior to halting the development at the individual
well. The yield was determined by timing the filling of a calibrated five gallon
container. A series of three timed events was conducted at each well head.
The three timed events were averaged for the specific well flow in gallons
per minute at a specific drawdown for each well.
2
April 25, 2001.
E. MONITORING WELL GAUGING
Prior to gauging, each well was opened and allowed to equilibrate with the
atmosphere. The .depth of the groundwater table was measured in each well
utilizing an electronic probe. After determination of the groundwater table
depth, the potentiometric elevation was determined utilizing top of well
casing elevations.'.
MONITORING WELL AQUIFER TESTING
To estimate the hydraulic conductivity of the Isurficial aquifer, .a falling
head/recovery test was performed on the wells drilled on -site. To perform
each test, the static head of the groundwater was first measured. A slug of
potable water was . introduced, and the rate of recovery was measured.
These numeric values were set as the following ;ratio:
h/Ho
h = head level during recovery
Ho = initial change in head level
The ratio was plotted as an exponential function of time. A semilog graph
was used to produce a linear plot of the ratio versus time. Two methods of
data evaluation were utilized-(Hvorslev, and Bouwer and Rice). The first is
utilizing the Hvorslev method for determining hydraulic conductivity: Utilizing
Hvorslev, the hydraulic conductivity was mathematically deduced as follows:
K = r2ln(UR)
2LTo
where:
where: K = Hydraulic Conductivity (ft/day)
r = Well radius (ft)
L = Sandpack length; (ft)
R = Borehole'radius (ft); . .
To= Time'.`' required (tirelag) for the
recovering water level to be within. 37
percent of the static water level.
i
3
April 25, 2001
The Hvorslev, method assumes .the following:-
1. Non -leaky confined aquifer of apparently infinite extent.
2.. Homogeneous, isotropic or anisotropic aquifer!of uniform thickness.
3. Water table is horizontal prior to the test.
4. Instantaneous change in water level. . !
5. Inertia of water columnand' non -linear well ;losses"are negligible.
6. . Partially or fully penetrating well.
7. The well is considered to be of an infinitesimal width.
8. Flow is horizontal toward or away from the well.
Bouwer and Rice established the following relationship:
K = r2In(Rc,,, Ri : 1 . In(h0/ht)
2L t
where: K = Hydraulic.Conductivity (ft/day)
r = Well radius (ft)
L = Length of screen (it)
R = Borehole radius (ft) .
ho= Initial displacement
ht=displacement as a function of time
The Bouwer and Rice Method assumes the following:
1. Unconfined or leaky confined aquifer with vertical drainage from
above of apparently infinite extent.
2. Homogeneous, isotropic aquifer of uniform thickness
3. Water table is horizontal priorto the test. ,
4. Instantaneous change in head at the start of the test.
5. Inertia of water column, and non -linear well losses are negligible.
6. Fully or partially penetrating well.
7. _. . The well storage is not negligible, thus it is taken into account.
8. The flow to the well is in a steady state.
9. 'There is no flow above the water table. .
Groundwater flow velocity . was also calculated using the : following
modification of Darcy's Law.
V = K(dh/dI)
Ne
April 25, 2001
Where: K = Hydraulic ccindUctii./ity. (ft/day)
N. =7 Effective porosity (unitless)
dh/dI = Hydraulic gradient (ft/ft)
Transmissivity was calculated utilizing the following relationship:
T = Kb
where: T = Transmissivity (ft2/day)
K = Hydraulic conductivity (ft/ay)
b = Aquifer thickness (ft)
Storativity normally varies directly with aquifer thickness. Actual unconfined
aquifer thickness is established at 25 feet. Subsurface geology was found
to be fairly homogenous; therefore, the storativity was calculated for the 25
foot saturated thickness of the surficial aquifer. Storativity was calculated
utilizing the following relationship:
S = 3' X 10-6b
where: S = Storativity (unitless)
b = Aquifer thickness (ft)
3.0 FINDINGS OF: INVESTIGATION
D. SITE GEOLOGY
(Refer to Figure 2, and Appendix A)
The subject site is located within the Coastal• Plain P,hysiographic Province
of North Carolina. The upper 27 feet of the site was found to be underlain
by Quaternary Surficial Deposits. As stated above, a total of four Type I
monitoring wells were drilled and constructed within the surficial aquifer on -
site. Soil samples obtained from the well borings 'revealed the site to be
underlain by fine to medium grained, well sorted and rounded sand to a
depth between 10, and 15 feet deep. The subsurface was found to grade
into a medium to coarse grained, well rounded sand to depths of
approximately 25 to 27 .feet. A dark gray, silty clay was found underlying
the coarse grained'sand in TW-1 and TW-4. Reviewing thell/V-3 boring log
reveals the initiation of the grading into the confining layer.
5
April 25, 2001
E. SITE HYDROGEOLOGY
1. Depth to Groundwater
(Refer to Table 1)
„Groundwater was found to range between 3.5 and 6:5 feet below the
land surface (BLS). In comparison to Mean Sea . Level (MSL)
elevation, groundwateryvas found to be approXimately.91 feet above
2. Groundwater Flow Direction and Velocity
(Refer to Table 2, Figure 3 and Appendix Dy:
1 '
AS shown on Figure 3, groundwater wes calculated to flow toward the -
southwest Calculation of the hydraulic gradient identified the flow to
be approximately 0.15%. Groundwater flow velocity was calculated
utilizing the mean value from the hydraulic conductivity slug tests
performed on the Wells on -site (refer to subsection 4 below).
Groundwater flow was determined to, toward the southwest at -
:approximately 4.2 X 1072 feet per day. j
3. Surficial Aquifer'Yield
(Refer to Table 2)
As stated <above, well yield was measured throughout the
development of each well Ito determine when the well was providing
its maximum capacIty. ,yield was determined immediately prior to
halting the development at the- individual !well. The yield was.
determined by timingthe filling of a calibrated five gallon container.
A series of four timed everits was conducted at each well head. The
four timed events were averaged for the Spepifit well flow in gallons
per minute at a specific drawdown for each Well. Well yields were
found to range between 16 to 22 gallons per minute, with between
seven and nine feet of drawdown, depending on the well.
4. Hydraulic Conductivity
(Refer to Appendixes C and D)
• Slug tests were used to determine the hydraillic conductivity beneath
the site. Data generated from the slug tests was evaluated per the
6
April 25, 2001
Hvorslev Method, and Bouwer and Rice Method. As shown, the slug
test data revealed hydraulic conductivity valuesranging between 10.1
and 8.6 feet per day within the upper portion 'of the surficial aquifer.
A statistical mean of 13.45 feet per day was calculated from the slug
test results. Due to the empirical nature of'the slug test information,
the calculated mean value was used forfurther calculations within this
investigation.
5. Transmissivity
(Refer to Table 2 and Appendix D)
Transmissivity was determined for the upper portion of the surficial.
aquifer. The average K value presented above was utilized to
determine a value of 336.25 ft2 per day.
6. Storativity
(Refer to Table 2 and Appendix D)
As presented in the calculations in, Appendix D, storativity normally
vanes directly with aquifer thickness. A confining clay layer was
encountered at >27 feet deep. With the depth of water averaging five
feet BLS, a saturated surficial aquiferthickness of 25feet was utilized
for calculation purposes.. Storativity was calculated to be 3 X 1 Os for
the upper portion of the unconfined aquifer beneath the site.
4.0 LIMITATIONS OF THE INVESTIGATION
The water monitoring wells analyzed as part of this investigation only provide
isolated data points and may not represent subsurface conditions at every location
in the project area. Analyses and conclusions of this report, being based on
interpolation between data points and subjective.hydrogeologic interpretation, may
not be completely representative of all subsurface conditions.
Conclusions and recommendations of this investigation and report are based on the
best available data in an effort to assist in the understanding ofthe surficial aquifer
under the site.
7
TABLES
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TABLE 1
BAY TREE LAKES
SPRAY IRRIGATION FIELD
BAY TREE LAKES, NORTH CAROLINA'
GROUNDWATER ELEVOATIONS
AS OF 4/12/01
WELL
I.D..
DATE
MEASURED
TOP.OF CASING
ELEVATION
(MSL)
DEPTH TO
WATER
WATER TABLE
ELEVATION
(MSL)
TW-1
4/12/01
96.62'
8.18' ! •
91.09'
TW-2
•
4/12/01
98.39' '
7.22' '
• • . 91.17'
TW-3
4/12/01
96.93' • .
6.00' ;
90.93'
TW-4
4/12/01
100.00'
9.05' '
90.95'
■M 11111 N llr MEI MB I N M MEI I - i MN NE NMI M
TABLE.2
BAY TREE LAKES
SPRAY IRRIGATION FIELD
BAY TREE LAKES, NORTH CAROLINA
SURFICIAL AQUIFER CHARACTERISTICS SUMMARY
Monitoring
- Well -.
Specific.Yield (1!
(Ne)
;Hydraulic Conductivity
In ft/day (K)
Well Yield
In GPM (Q)
TW-1
10-12'Grain size.
Slug Test
0.25
Hvorslev
13.7
Bouwer and
Rice
-
10.1
17gals. at of
1 drawdown
TW-2
10-12' Grain size
Slug Test
0.25
23.7
17.7
22 gals. at 8' of ..
drawdown
TW-3,
10-12' Grain size
Slug Test
TW-4
_. ___-._
0.25
�- ----- 0.2.5
..
11.2
- - 13- -
-
8.61
---- . -
. 20.5 gals. at 7.5' of
drawdown
16 gals at 9.7' of
------- drawdown
- - - _
10-12' Gain size -_ . .--
Slug Test. -
Average phreatic zone values -
• 0.25
15.4
11.47
General Aquifer Characteristics 1. Groundwater Flow Velocity is 4.2X10-2 ft. per day to the west southwest.
2. Storativity 3x10-5
3. Transmissivity is 336.25 feet2 per day.
Notes: (1) Johnson; A.I., Specific Yield- Compilation of specific yields for various materials, "U.S. Geological Survey Water-- Supply Paper 1662-D,
74pp., 1967.
(2) Morris, D. A., and A.I. Johnson, Summary of hydrologic and physical properties of rock and soil materials, as analyzed by the Hydrologic
Laboratory of the U.S. Geological Survey 1948-60, U.S. Geological Survey Water -Supply Paper 1839-D, 42 pp., 1967.
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A
Adapted from USGS.Topographic Mdp N
"White Lake, N.C.," 1986 ' •
Contour Interval =5 Feet
i ,.
pplied Reeource Management PC
TITLE:
SITE
VICIN\IITY
i
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'
MAP
FIGURE:
JOB:
0108:
SCALE:
: . 1 u=2,000'
DATE:. '
5/01 /,O 1
DRAWN BY:
, KLC
P.O. Box 882, Hampstead, NC 28443
(910) 270-2919 FAX 270-2988
LEGEND >
Test Well Location
(98.39') Test Well Top of Casin
\
IW 2
(98.39')
itle:
SITE MAP WITH
TEST WELL
LOCATIONS
Figure:
Note: Adapted from site!
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•
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•
•
•
LEGEND
Test Well Location
(91.09') Groundwater Table El=
Contour Interval = 0,C
•
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•
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"NV-2
(91.17')
Title:
GROUNDWATER
CONTOURS AS OF
04/ 1 2/01
Figure:
Note: Adapted from site r
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APPENDIX A
BORING LOGS, AS -BUILT WELL DETAILS,
NORTH CAROLINA WELL CONSTRUCTION
RECORDS
North Carolina - Department of Environment and Natural resources - Division of Water Quality - Groundwater Section
1936 Mail Service Center - Raleigh, N.C. 27699-1636- Phone (919) 733-3221
WELL CONSTRUCTION RECORD WELL CONTRACTOR: ARM's Waterworks - Don Cummings
TW-1 WELL CONTRACTOR CERTIFICATION #: 2412
STATE WELL CONSTRUCTION PERMIT #:
1. WELL USE (Check Applicable Box): I I Residential
Recovery E Heat Pump Water injection
2. WELL LOCATION: (Show sketch of the location below
Nearest Town: Harrells
Municipal Industrial El Agricultural _ Monitoring
Other If Other, List:use:
(Road Name and Numbers, Community, or Subdivision and Lot No.)
3. OWNER Bay Tree Lakes c/o D. Stephen Jones
Address 33 West Bay Ridge Road
(Street or Route No.)
Harrells, NC 28444
City or Town State Zip Code
4. DATE DRILLED 2/12/01
5. TOTAL DEPTH 25'
6. CUTTINGS COLLECTED YES _ NO x
7. DOES WELL REPLACE EXISTING WELL? YES _ NO x
8. STATIC WATER LEVEL Below Top of Casing: 8.5 Ft.
9. TOP OF CASING IS 2.5 Ft. Above Land Surface*
*Top of casing terminated at/or below land surface requires a variance in accor-
dance with 15A NCAC 2C.0118
10. YIELD (gpm): N/A METHOD OF TEST N/A
11. WATER ZONES (depth): Surficial Aquifer
12. CHLORINATION: Type N/A Amount N/A
13. CASING
Depth
Wall Thickness
Diameter Or Weight/Ft. Material
From +2.5 To 15 Ft. 2"
From To Ft.
From To Ft.
14. GROUT
SCH40 PVC
Depth Material
From 0 To 13 Ft. Bentonite
From
From
To Ft.
To Ft.
15. SCREEN
Depth
From 15 To 25 Ft.
From To Ft.
From To Ft.
Method
Poured
Diameter Slot Size Material
2" .010 PVC
16. SAND/GRAVEL PACK:
Depth Size Material
From 13 To 25 Ft. Coarse Sand
From To Ft.
From To Ft.
17. REMARKS:
County: Bladen
DRILLING LOG DEPTH
From To Formation Description
SEE ATTACHED
If additional space is needed use back of form
LOCATION SKETCH
(Show direction and distance from at least two State
Roads, or other map reference points)
SEE ATTACHED
I DO HEREBY CERTIFY THAT -I-
CONSTRUCTION STANDARDS,
HIS WELL WAS CONSTRUCTED IN ACCORDANCE WITI 1 15A NCAC 2C, WELL
AND THAT A COPY �F THIS ECO HAS BEEN PROVIDED TO THE WELL OWNER.
,t�tr�tr,sb�(z�2.,0(o
SIGNATURE OF PERSON CONSTRU TING THE WELL DATE
Submit original to Division of Water quality, Groundwater Section within 30 days
FOR OFFICE USE ONLY
Quad No:
Serial No.
Steel Manhole
Ground Surface
' 12' Sand
Locking WeII Cap
Concrete/G rout Crown
25' Total Depth
TW-1
BORING LOG
BAY TREE LAKES DRILLED BY: ARM
BLADEN COUNTY, NC LOGGED BY: E. Comette
Sample
Depth (ft)
Description
Water
Content
.Blow
Count
2 - 4
Lt. tan/gray fine to medium grained sand. Trace '
i
organic. .
Moderate_
Grab
5 -7
Dark red brown, fine to medium grained sand with.
trace coarse.
Moderate
Grab
10 -12
Medium gray/brown, well sorted, medium grained
sand with trace coarse.
High
HP
15 -17
Lt. tan, medium to coarse grained sand with peds '
up to 0.3 inch.
High
HP
20 - 22 `
Lt. tan, well sorted, medium grained sand (trace
coarse and trace fine). .
High .
HP
25 - 27 .
Dark gray/black, silty clay. r
Low
HP
HP - Hydraulic Push
North Carolina - Department of Environment and Natural resources - Division of Water Quality - Groundwater Section
1936 Mail Service Center - Raleigh, N.C. 27699-1636- Phone (919) 733-3221
WELL CONSTRUCTION RECORD
TW-2
WELL CONTRACTOR: ARM's Waterworks - Don Cummings
WELL CONTRACTOR CERTIFICATION #: 2412
STATE WELL CONSTRUCTION PERMIT #:
1. WELL USE (Check Applicable Box): Residential
Recovery 0 Heat Pump Water injection
2. WELL LOCATION: (Show sketch of the location below
Nearest Town: Harrells
Municipal Industrial _ Agricultural
Other If Other, List use:
(Road Name and Numbers, Community, or Subdivision and Lot No.)
3. OWNER Bay Tree Lakes c/o D. Stephen Jones
Address 33 West Bay Ridge Road
(Street or Route No.)
Harrells, NC 28444
City or Town State
4. DATE DRILLED '2/12/01
5. TOTAL DEPTH 25'
Zip Code
6. CUTTINGS COLLECTED YES NO x
7. DOES WELL REPLACE EXISTING WELL? YES NO x
8. STATIC WATER LEVEL Below Top of Casing: 8.5 Ft.
9. TOP OF CASING IS 2.5 Ft. Above Land Surface*
*Top of casing terminated at/or below land surface requires a variance in accor-
dance with 15A NCAC 2C.0118
10. YIELD (gpm): N/A METHOD OF TEST N/A
11. WATER ZONES (depth): Surficial Aquifer
12. CHLORINATION: Type N/A Amount N/A
County: Bladen
DRILLING LOG
Monitoring ri
DEPTH
From To Formation Description
SEE ATTACHED
If additional space is needed use back of form
13. CASING Wall Thickness LOCATION SKETCH
Depth Diameter Or Weight/Ft. Material (Show direction and distance from at least two State
Roads, or other map reference points)
From +2.5 To 15 Ft. 2" SCH40 PVC
From To Ft.
From To Ft.
14. GROUT
Depth Material Method
From 0 To 13 Ft. Bentonite Poured
From To Ft.
From To Ft.
15. SCREEN
Depth Diameter Slot Size Material
From 15 To 25 Ft. 2" .010 PVC
From To Ft.
From To Ft.
16. SAND/GRAVEL PACK:
Depth Size Material
From 13 To 25 Ft. Coarse Sand
From To Ft.
From To Ft.
SEE ATTACHED
17. REMARKS:
I DO HEREBY CERTIFY THAT TI-IIS WELL WAS CONSTRUCTED IN ACCORDANCE WITH 15A NCAC 2C, WELL
CONSTRUCTION STANDARDS, AND THAT A COPY OF THIS RECORD HAS BEEN PROVI ED TO THE WELL OWNER.
SIGNATURE OF PERSON CONSTR TINGE WELL DAT
Submit original to Division of Water quali rou ater Sectibbn within 30 days
FOR OFFICE USE ONLY
Quad No:
Serial No.
TW-2
Locking Well Cap
Steel Manhole
Ground Surface
13' Bentonite
Concrete/Grout Crown
25' Total Depth
TW-2
BORING LOG
BAY TREE- LAKES DRILLED BY: ARM
BLADEN COUNTY, NC. LOGGED BY: E. Comette
Sample
Depth (ft)
Description
Water
Content
Blow
Count
2 - 4
Dark brown/black, well sorted,very fine to"fine
grained sand (trace medium). Trace organic.
High
Grab
5 -7
Dark brown/black, well sorted, very fine to medium'
grained sand. ;
High
Grab
10 -12
Dark tan, well sorted, very fine to medium grained
sandy loam.
Moderate
HP
15 -17
Tan, well sorted, fine to medium grained sand. ,
High
HP
20 - 22
Lt. tan, well sorted, fine to medium grained sand.
High
HP
25 - 27
Lt. tan, well sorted, medium grained sand (trace ;
coarse).
High
HP
HP - Hydraulic Push
North Carolina - Department of Environment and Natural resources - Division of Water Quality - Groundwater Section
1936 Mail Service Center - Raleigh, N.C. 27699-1636- Phone (919) 733-3221
WELL CONSTRUCTION RECORD
TW-3
WELL CONTRACTOR: ARM's Waterworks - Don Cummings
WELL CONTRACTOR CERTIFICATION #: 2412
STATE WELL CONSTRUCTION PERMIT #:
1. WELL USE (Check Applicable Box): _ Residential
Recovery 0 Heat Pump Water injection
2. WELL LOCATION: (Show sketch of the location below
Nearest Town: Harrells
Municipal Industrial Agricultural Monitoring
Other If Other, List use:
(Road Name and Numbers, Community, or Subdivision and Lot No.)
3. OWNER Bay Tree Lakes c/o D. Stephen Jones
Address 33 West Bay Ridge Road
(Street or Route No.)
Harrells, NC 28444
City or Town
State Zip Code
4. DATE DRILLED 2/12/01
5. TOTAL DEPTH 25'
6. CUTTINGS COLLECTED YES _ NO x
7. DOES WELL REPLACE EXISTING WELL? YES _ NO x
8. STATIC WATER LEVEL Below Top of Casing: 8.5 Ft.
9. TOP OF CASING IS 2.5 Ft. Above Land Surface*
"Top of casing terminated at/or below land surface requires a variance in accor-
dance with 15A NCAC 2C.0118
10. YIELD (gpm): N/A METHOD OF TEST N/A
11. WATER ZONES (depth): Surficial Aquifer
12. CHLORINATION: Type N/A Amount N/A
13. CASING
Wall Thickness
Depth Diameter Or Weight/Ft. Material
From +2.5 To 15 Ft. 2" SCH40 PVC
From To Ft.
From To Ft.
14. GROUT
Depth Material Method
From 0 To 13 Ft. Bentonite Poured
From To Ft.
From To Ft.
15. SCREEN
Depth Diameter Slot Size Material
From 15 To 25 Ft. 2" .010 PVC
From To Ft.
From To Ft.
16. SAND/GRAVEL PACK:
Depth Size Material
From 13 To 25 Ft. Coarse Sand
From To Ft.
From To Ft.
17. REMARKS:
County: Bladen
DRILLING LOG
From To
DEPTH
Formation Description
SEE ATTACHED
If additional space is needed use back of form
1
LOCATION SKETCH
(Show direction and distance from at least two State
Roads, or other map reference points)
. SEE ATTACHED
I DO HEREBY CERTIFY THAT "PHIS WELL WAS CONSTRUCTED IN ACCORDANCE WITH 15A NCAC 2C, WELL
CONSTRUCTION STANDARDS, AND THAT A COPY OF THIS RECORD HAS BEEN PROVIDED TO THE WELL OWNER.
DATE
SIGNATURE OF PERSON CO 5T UCTING TH WELL
E
Submit original to Division of Water quality, Groundwater Section within 30 days
FOR OFFICE USE ONLY
Quad No:
Serial No.
Steel Manhole
Ground Surface
13' Belntonite
Groundwater
Table
12' Sand
TW-3
Locking Well Cap
Concrete/Grout Crown
15Riser
10' Screen
25' Total Depth
TW-3
BORING LOG
BAY TREE LAKES DRILLED BY: ARM
BLADEN COUNTY, NC . LOGGED BY: E. Comette
Sample
Depth (ft).
Description ..
j
Water .
Content
Blow
Count
2 - 4 .
,Medium gray/brown, fine to medium grained sand.
Moderate
Grab
5 -7
Lt. pink/gray, fine to medium grained sand.
Organic matter and debris.
. High . .,
::Grab
7 - 9
Dark pink/brown; fine to medium grained sand.
Organic matter and debris. •.
• High
HP
10 - 12
Med. Gray/brown, fine sandy clay inter -bedded with
white to It. tan, medium to coarse grained sand. '
High
HP
15 -17
Lt. tan, fine to medium grainedsand. i
High
HP
20 = 22 ' .
Tan, medium grained sand with trace coarse and !
trace organic.
High
. HP
I
25 - 27
'
Lt. tan,:medium grained sand with trace coarse and
trace organic.
'High :
.
HP.
HP - Hydraulic Push
North Carolina - Department of Environment and Natural resources - Division of Water Quality - Groundwater Section
1936 Mail Service Center - Raleigh, N.C. 27699-1636- Phone (919) 733-3221
WELL CONSTRUCTION RECORD
TW-4
WELL CONTRACTOR: ARM's Waterworks - Don Cummings
WELL CONTRACTOR CERTIFICATION #: 2412
STATE WELL CONSTRUCTION PERMIT #:
1. WELL USE (Check Applicable Box): Residential
Recovery ❑ Heat Pump Water injection
111111
2. WELL LOCATION: (Show sketch of the location below
Nearest Town: Harrells
Municipal Industrial I I 'Agricultural _ Monitoring
Other If Other, List use:
(Road Name and Numbers, Community, or Subdivision and Lot No.)
3. OWNER Bay Tree Lakes c/o D. Stephen Jones
Address 33 West Bay Ridge Road
(Street or Route No.)
Harrells, NC 28444
City or Town State
4. DATE DRILLED 2/12/01
5. TOTAL DEPTH 25'
Zip Code
6. CUTTINGS COLLECTED YES NO x
7. DOES WELL REPLACE EXISTING WELL? YES NO x
8. STATIC WATER LEVEL Below Top of Casing: 8.5 Ft.
9. TOP OF CASING IS 2.5 Ft. Above Land Surface*
'Top of casing terminated at/or below land surface requires a variance in accor-
dance with 15A NCAC 2C.0118
10. YIELD (gpm): N/A METHOD OF TEST N/A
11. WATER ZONES (depth): Surficial Aquifer
12. CHLORINATION: Type N/A Amount N/A
County: Bladen
DRILLING LOG
From To
DEPTH
Formation Description
SEE ATTACHED
If additional space is needed use back of form
13. CASING Wall Thickness LOCATION SKETCH
Depth Diameter Or WeighUFt. Material (Show direction and distance from at least two State
Roads, or other map reference points)
From +2.5 To 15 Ft. 2" SCH40 PVC
From To Ft.
From To Ft. 14. GROUT SEE ATTACHED
Depth Material Method
From 0 To 13 Ft. Bentonite Poured
From To Ft.
From To Ft.
15. SCREEN
Depth Diameter Slot Size Material
From 15 To 25 Ft. 2" .010 PVC
From To Ft.
From To Ft.
16. SAND/GRAVEL PACK:
Depth Size Material
From 13 To 25 Ft. Coarse Sand
From To Ft.
From To Ft.
17. REMARKS:
I DO HEREBY CERTIFY THAT TI-IIS WELL WAS CONSTRUCTED IN ACCORDANCE WITI 115A NCAC 2C, WELL
CONSTRUCTION STANDARDS, AND THAT A COPY OF THIS CORD HAS BEEN PROVID TO THE WELL OW'NE,R.
1/4.
Quad No:
FOR OFFICE USE ONLY
SIGNATURE OF PERSON CO ST UCTING TI( WELL DATE
Submit original to Division of Water quality, ndwater Section within 30 days
Serial No.
Locking
Steel Wel!shield
Ground'Surface".-
12' Bentonite
•
Groundwater , r
Table
13' Sand
TW-4
Concrete/Grout Crown
15' Riser
10' Screen
25' Total Depth
TW-4
BORING LOG
BAY TREE LAKES DRILLED BY: ARM
BLADEN COUNTY, NC LOGGED BY: D. Cummings
Sample
Depth (ft)
Description
I
Water
Content
Blow
Count
2 - 4
Lt. tan/gray fine to medium grained sand. Trace,
organic.
Moderate
Grab
5 -7
Dark red brown, fine to medium grained sand with
trace coarse.
Moderate
Grab
10 -12
Medium gray/brown, well sorted, medium grained ,
sand with trace coarse.
High
HP
i,
.
15 -17.
Lt. tan, .medium to coarse grained sand with peds
upto0.3inch.
High
HP
20 - 22
Lt. tan, well sorted, medium grained sand (trace
coarse and trace fine).
High
HP
25 - 27
Dark gray/black, silty clay.
Low
HP
HP - Hydraulic Push
APPENDIX B
TIME VS. WATER LEVEL PLOTS
Applied Resource Mgmt., PC
A P.O. Box 882
Hampstead, North Carolina
910.270.2919
Slug test analysis ,
No: 0108
Project: Bay Tree Lakes
Client: Bay Tree Lakes
Location: NC Hwy. 41
Slug test: TW-1 Bay Tree
Test well: TW-1
Test performed by: JLC
Test date: 4/22/01
Evaluated by:
Evaluation date: 5/2/01
Analysis method: Time vs. Change in waterlevel
plot
Aquifer thickness; 25 [ft]
i •
0 6
. .
Time vs. Change
12
in w aterlevel plot
Time [s]
18
, ,
24
30
'
-E- TV11-1
0'
1.066
Ti
2.132
`w
g
a)
m 3.198
t
4.264
5.33-
1 i
I •
• I
Applied Resource Mgmt., PC
AP.O. Box 882'
Hampstead, North Carolina
910.270.2919
Slug test analysis
No: 0108
Project: Bay Tree Lakes
Client: Bay Tree Lakes
Location: NC Hwy. 41
Slug test: TW-2A Bay Tree
Test well:
TW-2
Test performed by: JLC
Test date: 4/22/01
Evaluated by:
Evaluation date: 5/2/01
Analysis method: Time vs. Change in waterlevel
plot
Aquifer thickness: 25 [ft]
0
6
Time vs. Change
12
in waterlevel plot
. Time [s]
18
24
30
-el- TVU-2
N
1
1.241
w -
2.488
CD
'al
c
a)
I
c 3.732
i
4.976
6.22—
'
Applied Resource Mgmt., PC
AP.O. Box 882
Hampstead, North Carolina
910.270:2919 ,
Slug test analysis
No: 0108
Project: Bay Tree Lakes
Client: Bay Tree Lakes
Location: NC Hwy. 41
Slug test. TW-3 Bay Tree
Test well: TW-3
Test performed by: JLC
Test date: 4/22/01
Evaluated by:
Evaluation date; 5/3/01
Analysis method: '• Time vs. Change in waterlevel
plot
Aquifer thickness' ,25 [ft]
• 0 6
0'
Time vs. Change
12
in waterlevel plot
Time [s]
. 18
24
.
30
m-1W-3
0.42
47) 0.84
ai
a)
g
C
1.26
6
1.68
_
2.1—
i
i
i
i
E
1
Applied Resource Mgmt., PC
A P.O. Box 882
Hampstead, North Carolina
910.270.2919
Slug test analysis
No: 0108
Project: Bay Tree Lakes
Client: Bay Tree Lakes
Location: NC Hwy. 41
Slug test: T-4, Bay Tree
Test well:
TW-4
Test performed by: JLC
Test date: 4/22/01
Evaluated by: . JLC
Evaluation date: 4/22/01
Analysis method: Time vs. Change in waterlevel
plot
Aquifer thickness: 25 [ft]
0
0
7
Time vs. Change
14
in w aterlevel plot
Time [s]
21
,
28
35
le- TW 4
0.828
-
-
1.656
°'
a)
g
t
-
m 2.484
s
U -
3.312
.
4.14—
/
.
APPENDIX C
SLUG TEST PLOTS AND RESULTS
Applied Resource Mgmt., PC ,
AP.O. Box 882
Hampstead, North Carolina
910.270.2919
Slug test analysis
No: 0108
Project: , Bay Tree Lakes
Client Bay Tree Lakes
Location: NC Hwy. 41
Slug test: TW-1 Bay Tree
Test well:
TW-1
Test performed by: JLC
Test date: 4/22/01
Evaluated by:
Evaluation date:;
5/3/01
Analysis method: HVORSLEV •
Aquifer thickness:
25 [ft]
0
6
•
HVORSLEV
-12
Time [s]
18
I
-
.
i 24
30
s 11N-1 -
•
.
4
■
s '
1E2
I
I
1
I
1
1 E-3
Conductivity:
1
1.37x1041 [ft/d]
• I .
Applied Resource Mgmt., PC
. ,
A P.O. Box 882
Hampstead, North Carolina
910.270.2919
Slug testanalysis
No: '0108
Project: Bay Tree, Lakes
Client Bay Tree' Lakes
Location: NC Hwy. 41
Slug test: TW-1 Bay Tree
Test well:
TW-1
Test performed by: JLC
Test date: . 4/22/01
Evaluated by: :
Evaluation date:
5/3/01
Analysis method: BOUWER & RICE .
Aquifer thickness:
25 [ft]
9 6
BOUWER
12
'
& RICE
Mmels]
' . . 18
,
, :
24
.
30
• TVV-1
. -
.
.
-
'
-
-
.
.
,
.
e
,
.
e ,
.
1E-2
13 .
-
. "
-
.
' .
1E-3
Conductivity:
.
''
.
- •
. ....
'
,
:
•
,
.
.
. '
•
•
.
1.01 x10A+1 [ft/d]
•
. .
1
i
'
.
.. .
,
,
'
Resource
Applied Resoue Mgmt., PC
P.O. Box 882 ' '
Hampstead, North Carolina
910.270.2919
Slug test analysis ';
No: 0108 -
1
Project: Bay Tree Lakes .
Client: Bay Tree Lakes
Location: NC Hwy. 41
Slug test: TW-2A Bayl-ree
Test well: TW-2
Test performed by: JLC
Test date: ' ` 4/22/01
Evaluated by:
Evaluation date: 5/3/01
Analysis method: .HVORSLEV
Aquifer thickness: 25 [ft]
0
5
HVORSLEV
10'
Time [s]
15
20
25
• TW-2
•
■
-
1E2
.3 o _
i.'
1E3-
Conductivity:
2.37x10^+1 [ft/d]
•
Applied Resource.Mgmt.; PC
P.O. Box 882 -
Hampstead, North Carolina
910.270.2919.
Slug test analysis' 1
No: 0108 1
Project: Bay Tree Lakes.
Client: ' •Bay Tree Lakes
Location: NC Hwy..41
Slug -test TW-2A Bay' Tree
Test well: TW-2 ,
Test performed by: JLC
Test date: 4/22/01
Evaluated by:
Evaluation date; 5/3/01
Analysis method: BOUWER & RICE - '
Aquifer thickness:, 25 [ft] .. -
0
- 5
BOUWER
10
& RICE
Time-[s]
15
. 20
25
. ■ TVV-2
.
• !.
.
1E2
s
1 E-3
Conductivity:
•
1.77x10^+1 [ft/d]
j '
Applied Resource Mgmt., PC .
P.O. Box 882
Hampstead, North Carolina
910.270.2919
Slug test analysis '
No: 0108
Project: Bay Tree Lakes
Client: Bay Tree Lakes
Location: NC Hwy. 41
i
Slug test: TW-3 Bay Tree
Test well: TW-3
Test performed by: JLC
Test date: 4/22/01
Evaluated by:
Evaluation date: I 5/3/01
Analysis method: HVORSLEV
Aquifer thickness: 25 [ft]
1E2
0 . 5
HVORSLEV
10
Time [s]
15
20
25
m TVU-3
1
o
s
Conductivity:
■
1.12x10A+1 [ft/d]
1
1
I
Applied. Resource Mgmt., PC
A P.O. Box 882
Hampstead; North Carolina
910.27'0.2919
Slug test analysis
No: 0108
Project Bay Tree Lakes
Client Bay Tree Lakes
Location: NC Hwy. 41
Slug test. TW-3 Bay Tree
Test well: TW-3
Test performed by: JLC
Test date: 4/22/01
Evaluated by: '
Evaluation date:' 5/3/01
Analysis method: BOUWER & RICE •
Aquifer thickness: ! 25 [ft]
0
5
BOU
10
NER & RICE
Time [s]
15
1
' 20
25
a 1W-3
e
1E2
o
s
Conductivity:
i
•
.
8.61 x104+0 [ft/d]
I .
Applied Resource Mgmt., PC
A P.O. Box 882
Hampstead, North Carolina
910.270.2919
Slug test analysis.
,,
No: 0108
Project: Bay Tree Lakes
Client Bay Tree Lakes
Location: - NC Hwy. 41
Slug test. T-4 Bay Tree
Test well:
TW-4
Test performed by: JLC
Test date: 4/22/01 ti
Evaluated by:
Evaluation dater
`
JLC.
4/22/01
Analysis method: HVORSLEV
Aquifer thickness:;
25 [ft]
0
6
HVORSLEV
12
Time [s]
18
,
24
30
• NU 4
•
1E2
o
s
Conductivity:
i
1.30X10^+1 [ft/d]
i
1
I
Applied Resource Mgmt., PC '
A P.O. Box-882
Hampstead, North Carolina
910.270.2919
Slug test analysis •
No: 0108
Project: Bay Tree Lakes
Client: Bay Tree; Lakes
Location: NC Hwy. 41
Slug test. T-4 Bay Tree :
Test well:
TW-4
Test performed by: JLC
Test date: 4/22/01 . ,
Evaluated by:
Evaluation date: , 5/3/01
Analysis method: BOUWER & RICE
Aquifer thickness: ' 25 [ft]
9 . 6
BOUWER
12
,
& RICE
lime [s]
18
, 1
'• 24
30
ili -IW-4
.
.
-
.
.
,
. ,
'
.
i
. 1E2
o
•
Conductivity:
. i
'
la
. '
_ .
9.45x10A+0 [ft/d]
,
.
WELL CONSTRUCTION RECORD" 3 0 7 5 3 5
North Carolina - Department of Environment and Natural Resources - Division of Water Quality - Groundwater Section
wEt.t. coy' it.kut OR (INDIVIDUAL) NAME (print) ty-A-NaSdi Os-ifInc11 dk, , CERTIFICATION #al X./
,------)
‘vi:1 1. co \,1 RAcToR CONIPANY NANO.:-CIV NIkpil be,o5. WEI L 1-)KI I NIL- INL •
1.
PIIONE # igia_„„5k4_ j/22.0(1
ST %TU.. \\ 1,1 I CONSTRUCTION PERNirrti _____ _ASSOCIATED WO PERNIIT# ts. .. - ( i I. api)1 icahle)
t:ippi ieal•de
2. WELLLOCATION: bj*kuTi
Nearest Town: County
... ,
I. WEI 1. l!SI: (( h • Applicable Box.): Residential 0 Municipal/Publie 0 Industrial 0 Agricultural
NIonitoring Recovery 0 Heat Pump Water Injection 0 • Other 0 If0ther, List Use
(Street Name. Numbers. Community, Subdivision, Lot No.. Zip Code)
3. OWNER: col T.
Address 33 01424-/- gel 121215/ iiteir
(street or Route No.)
( „) 0. 1 n„„ Sue Zip Code
( ate I- _,5 i si3 2_--
Area code- Phone number.
4. DATE DRILLED i/c-.11
5. TOTAL DEPT! I: .
6. DOES WELL REPLACE EXISTING WELL? YES IEY;NO. 0
7. sTATi( WATER 'LEVELDelOWTOP • .• FT.
• • (t)se "+" ir Above Top or Casing)
8. TOP OF CASING IS • -A FT. Above Land Surface*
*.lop of casing terminated atior below land surface requires a • • •
variance in accordance with ISA NCAC 2C .0118. . . • aw-Ji
9. YIELD (gpm): JO METHODOF TEST PL-"-r•
-10. WATER ZONES (depth):
Topographic/Land setting
ORidge IZI.Citr;pe OValley 0Flat
(check appropriate box)
Latitude/longitude of well location
(degrees/minutes/seconds)
Latitudelloneitude sOurce:OGPSOTopographic map
Icheck box) . , . .
DEPTI I . DRILLING LOG
From . To . Formation Description
6 id _3 e. 7tP
3 to .iii7° P'. 561 PI ;J(_to
71- a /..2 .
: / 2, 4- O 0? 7 i 9 " S o-IA-4_ -
;;.•
11. DISINFECTION: Type // 774-
12. CASING:
Depth / , Diameter
From 0 To /•7 ?
From . To Ft.
From To. Ft.
13. GROUT: _, Deptl /,‘ Material
0.
From Pof 1 0 leo11 FL /11 cd- From /61 9 "To /7 '9 "Ft. 13.„,„..ite...,‘ pc6
14. SCREEN: Depth
Amount /
Wall Thickness
or Weight/Ft. Material
177411AZ, p?
Method
Diameter Slot Size Material
nio I',
From_p7iy fo a/ / . Ft. in. , 0 /Z3 in. Pima" 1144
From To . Ft. in. in:
15. SAND/(jRAVEL PACK:
Depth , Size
7 s • a
From iTo ,T)iihR. ymii-1,,
From To . Ft.
. .
16. REMARKS:.
• Materihl
,• . •
C, • C:r1
CA •
• • *-11 Tn--•
• retrr„.1
LOCATION SKETCII
Show,dtrectton and distance in miles l'ronat leas<R,c3
4.••••;:s
two State Roads or County Roads. Incluite
nurnbes. and common road names._
is)A'113
•
1 bo fiERkIrr' CERTIFY TIIAT THIS WELL WAS CONSTRUCTED IN ACCORDANCE WITII I5A NCAC 2C, WELL
CONSTR t I( TION STANDARDS, AND THAT A COPY OF TI I IS RECORD 11AS BEEN 'PROVIDED TO THE WELL OWNER
grn cif4.9 2 . t , / - .
.. .• , • -:.- :..'*. SIL1NA I 1.11(E OF MRS N•CONS I RUCTING-THEMELL - :• • • •• DATE • - • . -
.... ......_ ........_
... . • '. • • .. dil: , . , --...._ ..........,., -
.. ..,
•
Su With I he.original to the Division of Water Quality, GroundwLter Seeiion, 1636'Mail:Service Center - Raleigh, NC
27699-1636 Plume No. (919) 733-3221, within 30 days: li , C;W-1 REV. 07/2001
I
.1
tl
-,....„
APPENDIX D
CALCULATIONS
pplied Resource Management f C
P.O. Box 882. Hampstead, NC 28443
(910) 270.2919 FAX 270-2988
TITLE:
JOB: CALC. BY:
CHECKED BY:
DAT :
/O
APPENDIX
Page l of
pplied Resource Management I C
P.O. Box 882 Hampstead, NC 29443
(910) 270-2919 FAX 270.2988
TITLE: �T� v /Tr(
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JOB:
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CALC. BY: CHECKED BY:
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pplied Resource Management F'C
P.O. Box 882, Hampstead, NC 28443
(910) 270-2919 FAX 270-2988
TITLE:
JOB:
0/ D
CALC. BY:
CHECKED BY:
DATE:
APPENDIX