38
Rec’d Digitally AFIN:PMT#:S W DOC ID#:M D TO:By spakes at 7:30 am, Apr 13, 2017 10-00062 0044-S4-R1 71550 AC>FILE <RDS
Rec’d Digitally
AFIN:_________________________
PMT#:_________________________ SW
DOC ID#:______________________ MD
TO:___________________________
By spakes at 7:30 am, Apr 13, 2017
10-00062
0044-S4-R1
71550
AC>FILE <RDS
1
Spakes, Rita
From: Arjmandi, MasoudSent: Monday, April 24, 2017 8:05 AMTo: Spakes, RitaCc: Cusher, AnnetteSubject: FW: Clark County Landfill 0044-S4 Vertical Expansion (North Cell) CQA Document Amendment
(B&F No. 7-2782-0105)Attachments: 35121040.0001.pdf; 35151059.0001Rev2.pdf; FIGURE 2 REV. 1 (4.18.17).pdf; FIGURE 4 REV. 1
(4.19.17).pdf
Follow Up Flag: Follow upFlag Status: Flagged
Rita; Please add this to Doc. 71550.
From: John Rogers [mailto:[email protected]] Sent: Thursday, April 20, 2017 9:34 AM To: Arjmandi, Masoud Cc: Sandra Blanton; Brandon Richardson Subject: RE: Clark County Landfill 0044-S4 Vertical Expansion (North Cell) CQA Document Amendment (B&F No. 7-2782-0105) Masoud, Please see the attachments and comment below to serve as an addendum to the Clark County Landfill Vertical Expansion CQA Document. 1. The attached Figure No. 4 has been revised to show survey points of subgrade and final cover to demonstrate minimum 18” thick constructed liner. 2. Stormwater flowline indicators have been added to both figure Nos. 2 and 4 to demonstrate water conveyance to the stormwater pond. 3. There are 4 sieve analysis in the CQA report that demonstrate greater than 30% passing the number 200 sieve. Additionally, we have attached 2 more sets of test that document the soil material utilized for the landfill liner construction. 4. The County Judge’s office is forwarding the Financial Assurance mechanisms to Ms. Susan Speake. Please let me know if you need any additional information for your review and approval. Thank you, John W. Rogers, PE* Senior Professional Engineer B & F ENGINEERING, INC. I Since 1972 928 Airport Road Hot Springs, Arkansas 71913 p. 501.767.2366 I f. 501.767.6859 [email protected] I www.bnfeng.com * AR, CO, GA, LA, MS, MO, OK, TX
Celebrating 45 Years of Professional
2
Engineering and Surveying Services!
928 AIRPORT ROAD
HOT SPRINGS, AR 71913
(PH) 501-767-2366
(FAX) 501-767-6859
(EMAIL) [email protected]
ISSUE DATE:
B&F PROJ.
ENGINEERING, INC.B&F
FILE NAME:
REV. # REV. DATE BY REVISIONS
Fld.Bk. #
Survey
Checked
Drawn
Design
DATEBY
Rev. #
7-2782-0202
007
FIG. 4
4/7/17
CLAR
K CO
UNTY
LAN
DFIL
LCL
AY L
INER
AS-
BUIL
T
CLA
RK
C
OU
NT
Y
AR
KA
NS
AS
JWR 4/17
EGB 4/17
1 (04.19.17)
928 AIRPORT ROAD
HOT SPRINGS, AR 71913
(PH) 501-767-2366
(FAX) 501-767-6859
(EMAIL) [email protected]
ISSUE DATE:
B&F PROJ.
ENGINEERING, INC.B&F
FILE NAME:
REV. # REV. DATE BY REVISIONS
Fld.Bk. #
Survey
Checked
Drawn
Design
DATEBY
Rev. #
7-2782-0202
008
FIG 2
4/4/17
CLAR
K CO
UNTY
LAN
DFIL
LO
VERA
LL C
ELL
LAYO
UT
CLA
RK
C
OU
NT
Y
AR
KA
NS
AS
BLR 4/4/17
BLR 4/4/17
1 (04.18.17)
CR0006, 10-16-13, Rev.7 Page 1 of 1
LABORATORY COMPACTION CHARACTERISTICS OF SOIL REPORTReport Number: 35151059.0001Service Date: 10/26/15 25809 I-30 South Report Date: 11/18/15 Revision 2 - Perm Results Bryant, AR 72022Task: West Borrow Area 501-847-9292
Client ProjectB & F Engineering, Inc. Clark County Class IV Landfill Materials TestingAttn: John Rogers Clark County Class IV Landfill928 Airport Rd Arkadelphia, AR Hot Springs, AR 71913
Project Number 35151059Material Information Sample Information
Source of Material: Sample Date: 10/26/15Proposed Use: Liner Sampled By: Client
Sample Location: West Borrow Area
Sample Description: Sandy Lean Clay
Laboratory Test Data Result SpecificationsTest Procedure: ASTM D698 Liquid Limit: 45Test Method: Method B Plastic Limit: 18Sample Preparation: Wet Plasticity Index: 27Rammer Type: Manual In-Place Moisture (%):Maximum Dry Unit Weight (pcf): 105.8Optimum Water Content (%): 18.9
USCS:
Comments: This report include the permeability results with a confine pressure of 5 psi
Services: Moisture-Density Relations
Terracon Rep.: Robin PhillipsReported To: John Rogers, B&F EngineeringContractor:Report Distribution:
(1) B & F Engineering, Inc., Emailed
Reviewed By: _______________________________
Jennifer HarmonProject Manager
Test Methods: AASHTO T99The tests were performed in general accordance with applicable ASTM, AASHTO, or DOT test methods. This report is exclusively for the use ofthe client indicated above and shall not be reproduced except in full without the written consent of our company. Test results transmitted hereinare only applicable to the actual samples tested at the location(s) referenced and are not necessarily indicative of the properties of other apparentlysimilar or identical materials.
Zero Air Voids Curve for Assumed Specific Gravity 2.70
2726252423222120191817161514131296979899
100101102103104105106107108
Water Content (%)
Dry
Uni
t Wei
ght (
pcf )
LABORATORY COMPACTION CHARACTERISTICS OF SOIL REPORTReport Number: 35151059.0001Service Date: 10/26/15 25809 I-30 South Report Date: 11/18/15 Revision 2 - Perm Results Bryant, AR 72022Task: West Borrow Area 501-847-9292Client Project
B & F Engineering, Inc. Clark County Class IV Landfill Materials TestingAttn: John Rogers Clark County Class IV Landfill928 Airport Rd Arkadelphia, AR Hot Springs, AR 71913 Project Number: 35151059
Services: Moisture-Density Relations
Terracon Rep.: Robin Phillips Started Reported To: John Rogers, B&F Engineering Finished: Contractor: Report Distribution:(1) B & F Engineering, Inc., Emailed
Reviewed By: ____________________________________ Jennifer Harmon Project ManagerThe tests were performed in general accordance with applicable ASTM, AASHTO, or DOT test methods. This report is exclusively for the use of the client indicated above and shall not be reproduced except in full without the written consent of our company. Test results transmitted herein are only applicable to the actual samples tested at the location(s) referenced and are not necessarily indicative of the properties of other apparently similar or identical materials.
CT0001, 6-30-11, Rev.9 Page 1 of 1
Sieve AnalysisSieve Size (Inches) Percent Passing (%)
3” 1001 ½” 100
1” 100¾” 100
3/8” 96#4 92
#10 89#40 86
#200 53.7
Project :
Date: P-1
Project No. :
Boring No.: ap = 0.031416 cm2 Equilibrium 1.6 cm3
Sample: aa = 0.767120 cm2 Pipet Rp 16.8 cm3
Depth (ft): M1 = 0.030180 C = 0.0004288 Annulus Ra 1.0 cm3
Other Location: M2 = 1.040953 T = 0.0658646
Material Description :
SAMPLE DATA
Wet Wt. sample + ring or tare : 550.19 gTare or ring Wt. : 0.0 g Before Test After TestWet Wt: of Sample : 550.19 g Tare No.: 115 Tare No.: 123Diameter : 2.80 in 7.11 cm2
Wet Wt.+tare: 112.26 Wet Wt.+tare: 100.66Length : 2.80 in 7.11 cm Dry Wt.+tare: 98.23 Dry Wt.+tare: 86.91Area: 6.16 in^2 39.73 cm2 Tare Wt: 31.11 Tare Wt: 31.26Volume : 17.24 in^3 282.53 cm3
Dry Wt.: 67.12 Dry Wt.: 55.65Unit Wt.(wet): 121.52 pcf 1.95 g/cm^3
Water Wt.: 14.03 Water Wt.: 13.75Unit Wt.(dry): 100.51 pcf 1.61 g/cm^3 % moist.: 20.9 % moist.: 24.7
2.70 105.8 OMC = 18.9% of max = 95.0 +/- OMC = 2.00
Calculated % saturation: 98.52 Void ratio (e) = 0.68 Porosity (n)= 0.40
55.00 50.00 5.00 psi
TEST READINGS
15.8 cm 28.00
Date elapsed t Z DZp temp a k k(seconds) (pipet @ t) (cm ) (deg C) (temp corr) (cm/sec) (ft./day) Reset = *
11/12/2015 600 16.3 0.482666 21 0.977 2.26E-08 6.39E-0511/12/2015 1200 15.9 0.882666 21 0.977 2.09E-08 5.93E-0511/12/2015 1800 15.6 1.182666 21 0.977 1.89E-08 5.35E-0511/12/2015 2400 15.2 1.582666 21 0.977 1.92E-08 5.45E-05
SUMMARY
ka = 2.04E-08 cm/sec Acceptance criteria = 50 %ki Vm
k1 = 2.26E-08 cm/sec 10.6 % Vm = | ka-ki | x 100k2 = 2.09E-08 cm/sec 2.6 % kak3 = 1.89E-08 cm/sec 7.4 %k4 = 1.92E-08 cm/sec 5.8 %
Hydraulic conductivity k = 2.04E-08 cm/sec 5.78E-05 ft/dayVoid Ratio e = 0.68Porosity n = 0.40Bulk Density g = 1.95 g/cm3 121.5 pcfWater Content W = 0.34 cm3/cm3 ( at 20 deg C)Intrinsic Permeability kint = 2.09E-13 cm2
( at 20 deg C)
Hydraulic Gradient =
N/A
Remolded
Red Clay with Rock Fragments
Assumed Specific Gravity:
11/18/2015
35151059
Back Pressure (psi) = Confining Pressure =
HYDRAULIC CONDUCTIVITY DETERMINATION
Panel Number :
Permometer Data
FLEXIBLE WALL PERMEAMETER - CONSTANT VOLUME(Mercury Permometer Test)
Note: The above value is Effective Confining Pressure
Z1(Mercury Height Difference @ t1):
Clark County
N/A
OO1
Max Dry Density(pcf) =
Set Mercury toPipet Rp atbeginning
Test Pressures During Hydraulic Conductivity TestCell Pressure (psi) =
CR0006, 8-27-11, Rev.6 Page 1 of 1
LABORATORY COMPACTION CHARACTERISTICS OF SOIL REPORTReport Number: 35121040.0001Service Date: 08/24/12 25809 I-30 South Report Date: 08/29/12 Bryant, AR 72022
501-847-9292
Client ProjectB & F Engineering, Inc. Clark County LandfillAttn: John Rogers Clark County Landfill928 Airport Rd Clark County, AR Hot Springs, AR 71913
Project Number 35121040
Material Information Sample InformationSource of Material: Borrow Source Sample Date:Proposed Use: Clay Liner/Final Cover Sampled By: Contractor
Sample Location: N/A
Sample Description: White lean clay
Laboratory Test Data Result SpecificationsTest Procedure: ASTM D698 Liquid Limit: 37Test Method: Method A Plastic Limit: 16Sample Preparation: Wet Plasticity Index: 21Rammer Type: Mechanical In-Place Moisture (%):Maximum Dry Unit Weight (pcf): 113.8 Passing #40 (%): 100.0Optimum Water Content (%): 14.7 Passing #200 (%): 76.0
USCS: CL
Comments:
Services: Received a soil sample from the contractor at our laboratory. Prepared the sample for plasticity index and moisture-density relation tests.
Terracon Rep.: Connie ShearerReported To: John RogersContractor: B&F Engineering Report Distribution:
(1) B & F Engineering, Inc., Emailed
Reviewed By: _______________________________
Christopher HandleyDepartment Manager
Test Methods:The tests were performed in general accordance with applicable ASTM, AASHTO, or DOT test methods. This report is exclusively for the use ofthe client indicated above and shall not be reproduced except in full without the written consent of our company. Test results transmitted hereinare only applicable to the actual samples tested at the location(s) referenced and are not necessarily indicative of the properties of other apparentlysimilar or identical materials.
Zero Air Voids Curve for Assumed Specific Gravity 2.70
23222120191817161514131211101102103104105106107108109110111112113114115116
Water Content (%)
Dry
Uni
t Wei
ght (
pcf)
