2013-34 l
TETRA TECH
April 12,2013
Ms.Tamara Richardson,P.E
Director of Engineering
City of Clermont
685 West Montrose Street
Clermont,Florida 34711
Subject: City of Clermont
Proposal for Source Removal of Arsenic Impacted Soil
Proposed Kaboom Playground
Tt # 200-BP Clermont
Dear Ms. Richardson:
Tetra Tech is pleased to furnish this proposal to perform source removal relative to arsenic
contaminated soil for the above referenced project. The services will be performed by Ardaman
& Associates, Inc. (AAI), in accordance with AAI's scope of services and fee schedule attached
hereto.
The estimated cost of these additional services is $5,304.96 and will not exceed this amount
without further written authorization. Following authonzation to proceed, the project will be
complete within 14 days.
If you should have any questions,please do not hesitate to contact me at 407-839-3955.
Sincerely, Accepted by:
Tetra Tec City of Clermont
et.-
+ Fox,PE • ed Signa re
Attachments
JDF/Isc/BP Clermont/Soil Screening/source remov al_04 1 2 1 3
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t
Tetra Tech, Inc.
201 E Pine Street.Suite 1000,Orlando FL 32801
Tel 407 839 3955 Fax 407 839 3790 www tctraterh corn
- - Ardaman &Associates, Inc.
IIIIIIAIIII Geotechntcal,Environmental and
Matenals Consultants April 11, 2013
Proposal File No. 13-60-147
Tetra Tech, Inc.
201 E. Pine Street, Suite 1000
Orlando, Florida 32801
Attention: Mr. Jon Fox, P.E.
Subject Proposal for Supplemental Source Removal
Jenkins Community Center Proposed Playground
Clermont, Florida
Dear Mr. Fox:
Ardaman & Associates, Inc. (Ardaman) is pleased to submit this proposal to provide supplemental
services for Source Removal (SR) relative to arsenic contaminated soil within the proposed
playground area at the above referenced project.
Source Removal was recently conducted at the site. A total of 157.6 tons of impacted soil was
removed and disposed of(247 tons budgeted). Confirmatory soil testing found arsenic over the 2.1
mg/Kg limit at two locations,both at a depth of one foot. One of the samples was from the north end
of the excavation and one was from the south end.
Ardaman recommended that the remaining soils within the upper two feet at the site be removed and
disposed of. No testing to date has found arsenic in soil below 2 feet except in the center of the
playground, where it was removed, and at the south end of the playground at 5 feet below grade
which is below the seasonal high water table and is therefore not considered soil contamination.
Since the supplemental excavation will be to the playground limits and, given the test results
obtained to date, it is our opinion that no further testing relative to arsenic at the site is warranted.
On April 11, 2013 City personnel began excavating the remaining upper two feet of soils at the site.
We understand that the excavation will be completed April 12, 2013. Ardaman personnel will
document the removal. We understand that the City will backfill and compact the excavations
immediately. Ardaman previously tested three City soil stockpiles for arsenic and lead. No
excessive levels of lead or arsenic were found in the stockpile samples. Modified Proctor tests were
also conducted.
PROPOSED SCOPE OF SERVICES
As requested, we have prepared this cost proposal for services relative to supplemental source
removal as described above. The following supplemental services are proposed.
• Monitor and document excavation and stockpiling of the additional soils to be removed from
the upper two feet at the site.
• Ardaman estimates 300 tons of soil will be generated by the City, Including some soils that
originated from one to two feet below grade near the center of the site that were presumed to
be "clean"and were left at the site for use as backfill (recent tests indicate they may not be
"clean"). The previous efforts estimated tonnage was 247 tons, but only 157.6 tons were
removed and disposed of. The estimated 300 tons of soil will be transported and disposed
8008 S Orange Avenue 32800,Post Office Box 593003,Orlando Florida 32859.3003 Phone(407)855-3880 FAX(407)859.13121
Louisiana Alexandria,Baton Rouge,Monroe New Orleans,Shreveport
Florida Bartow,Cocoa Fort Myers,Miami,Orlando,Port St Lucre,Sarasota Tallahassee,Tampa,West Palm Beach
Tetra Tech, Inc.
Proposal File No. 13-60-147 -2-
of at Omni Waste(provided the waste profile is accepted). The City will need to load the soil
into the trucks.
• After supplemental removal will be documented in our Source Removal Report along with the
recently completed removal and testing. FDEP would need to approve the No Further
Action status. We have not budgeted for any additional assessment, monitoring or well
installation at this time. Please note that FDEP could require additional assessment,
monitoring, etc., prior to approval of a No Further Action.
This study would be a focus study limited to the specific method of investigation. Contamination
results would be applied to the diameter and depth of the boreholes. No groundwater sampling was
requested or proposed at this time. Our findings do not warrant the site against other hazardous
substances contamination and do not insure against the presence of such substances or associated
contamination in.the areas not investigated.
ESTIMATED SCHEDULE AND FEES
The estimated cost of this supplemental source removal program is$5,304.96 after application of a
$5,507.04 credit associated with the 89.4 tons of soil budgeted for removaVdisposal, but not
conducted. Our estimate is detailed in the attached cost spreadsheet. The estimated cost
considers full cooperation from the present owner and no special access problems to the site. The
cost will not exceed$5,304.96 without further written authorization by the client. We will bill for our
services monthly on a time and materials basis in accordance with the rates in the attached
spreadsheet.
CLOSURE
Client recognizes that the scope of services under this proposal is, limited by Client's budget for
services, and that a more detailed and extensive scope of services at greater cost to the client may
yield more accurate and reliable information regarding conditions at or near the site. Nevertheless,
client recognizes and assumes the inherent risk of the scope of services performed under this
proposal.
This proposal is subject to the following terms and conditions:, (1) access to site is to be readily
available to our field crews and(2)Ardaman&Associates will not take responsibility for damages to
underground structures;their locations are to be provided by the client prior to commencement of the
field work.
If this proposal meets with your approval, please provide authorization to proceed. Please do not
hesitate to contact us if you have questions or need additional information.
V- 1 ' . •urs1
RDAMAN& OCIATES, INC.
C=
ri R. tephens, P.E.
Senior Project Engineer
CRS/crs/ksb
1384147 JENKINS SUPPLEMNTL SRDDCX (2013 PP)
CLIENT. Tetra Tech,Inc
PROJECT. Jenkins Community Center
DESCRIPTION. Supplemental services associated with removal of arsenic impacted soils
Please refer to Proposal 1360-147 for details
TOTAL PROJECT COST. $5,304.96
ITEM DESCRIPTION UNITS IN UNITS 'COUNIT ER'EXTENSION ITEM DESCRIPTION UNITS I UNITS RI COST UNITER EXTENSION
PERSONNEL GENERAL FIELD EQUIPMENT AND EXPENDABLES
Data Logger Per Day 5390 00
Senior Project Manager Per Hour 4 5141 00 5584 00 Organic Vapor Analyzer(FID or PID) Per Day $155 00
Generator Per Day $190 00
Pressure Washer Per Day $190 00
Surveying Equipment(Water Table Elevs) Per Day $78 00
Assistant Project Engineer Per Hour $97 00 Cenlnfugal Development Pump Per Day $61 00
Submersible Development Pump Per Day $250 00
Senior Engineering Technician Per Hour 12 $56 00 $672 00 Penstallic Purging Pump Per Day $60 00
Magnetometer Per Day 562 00
Water Level indicator Per Day $23 00
Technical Draftsman Per Hour $57 00 ProductllNaler Interface Probe Per Day $82 00
pH/conductivity Meter Per Day $28 00
Technical Secretary Per Hour $46 00 Turbidity Meter Per Day $61 00
Subtotal $1,236 00 Dissolved Oxygen Meter Per Day $112 00
Bader Usage(Stainless Steel or Teflon-Per Per Day 525 00
DRILLING Concrete Saw Per Day $150 00
MOBILIZATION/DEMOBILIZATION Concrete Coring Machine Per Day $300 00
Men and Equipment(Minimum$150 00) Per Hour $169 00 Hand Auger Each $20 00
Lump Sum Men and Equipment Mob Per Mob - $300 00 Disposable Teflon Bader Each $27 00
Mileage-Rig Per Mile $1 10 Disposable Polyethylene Bailer Each $17 00
_Mileage-Truck Per Mile 50 80 High Capacity(1 0 micron)Filter Each 529 00
Mileage-Automobile Per Mlle $0 45 16 oz Soil Jars(soil gas analysis) Per Box $14 00
AUGER BORINGS Tygon Tubing Per Foot $2 80
Auger Bonngs(hand) Per LF $10 25 Polyethylene Tubing Per Foot $0 60
Auger Bonngs(4-inch) Per LF $10 25 Isopropyl Alcohol(decontamination) Per Gal $25 00
SPT BORINGS(ASTM D-1586)In Soil(N-values<50) Deionized Water(decontamination) Per 5 Gal. 515 00
from surface to 25 feet Per LF 515 00 55-gallon Drum Each $68 00
from 25 feet to 50 feet Per LF $16 75 Visqueen(100 Feet by 20 Feel) Per Roll $120 00
from 50 feet to 100 feet Per LF $18 75 Well or Piezometer Matenals Per Foot $22 00
from 100 feet to 125 feet Per LF $23 75 Miscellaneous Equip 8 Expend.Estimated Lump Sum 550 00
from 125 feet to 150 feel Per LF $31 50 Subtotal $0 00
ADDITIONAL SAMPLES FOR CONTINUOUS SPT SAMPLING COMPACTION AND CLASSIFICATION TESTS
from 10 feet to 25 feet Per Sample $29 00 Proctor,Standard or Meddled Per Test $102 00
from 25 feet to 50 feet Per Sample $32 00 Moisture Content(ASTM D-2216) Per Test 513 00
from 50 feet to 100 feet Per Sample $36 00 Sieve Analysis(ASTM D-421,0-422) Per Test $45 50
from 100 feet to 125 feel Per Sample $41 00 Percent Fines(ASTM D-1140) Per Test $30 50
from 125 feet to 150 feet Per Sample $51 00 Subtotal $0 00
WASH BORINGS AND UNDISTURBED SOIL SAMPLING -
3"Wash Borings In Soil-Cuttings Only Per LF $7 50 LABORATORY ANALYSIS AND OTHER SUBCONTRACTED SERVICES
Shelby Tube Per Sample $130 00 Subcontr Service(Mobilization) _ump Sum 51,120 00
Fixed-Piston Shelby,Osterberg,Pitcher Per Sample $158 00 Subcntr Srvc(Excavate,Load,Haul,Dispos Per Ton -89 4 561 60 -$5,507 04
FURNISH,INSTALL,end REMOVE CASING(up to 4-Inch) Subconlr Service(Backfid,Compact,Grade)Per Yard $16 80
from surface to 50 feet Per LF 59 00
from 50 feet to 100 feel Per LF 511 50 Subcntr Srvc(Transport and Dispose) Per Ton 300 $31 92 $9,576 00
from 100 feet to 150 feet Per LF $14 00
MONITORING WELL INSTALLATION
Temporary 2"PVC Well(Piezometer) Per Foot $22 00 EPA 624/8260 Volatiles-soil Per Test $112 00
2-inch PVC Per Foot $29 00 EPA 8270 PAH's-water Per Test $112 00
4-Inch PVC Per Foot $39 00 EPA 8270 PAH's-soil Per Test $112 00
Double-Cased PVC Well(2"/6") Per Foot 550 00 EPA 8310 PAH's-soil or water Per Test $168 00
8"Circular Well Manhole w/Pad Per Each 5275 00 EPA 625/8270 Semr-Vofs-water or soil Per Test $280 00
12"Circular Well Manhole w/Pad Per Each $300 00 TPH by FL-PRO-water or soil Per Test 595 20
Above Ground Riser w/Pad Per Each $325 00 EPA 504 EDB-water or soil Per Test $50 40
DRILLING ON TIME BASIS Table B,FAC 82-770 water Per Test $383 04
Drilling-2 man-crew Per Hour $185 00 Table B,FAC 62-770 soil Per Test $274 40
Dolling-3 man-crew Per Hour $210 00 Table C.FAC 62-770 water Per Test $792 96
OTHER RELATED DRILLING CHARGES Table C,FAC 62-770 soil Per Test $736 96
Hole Location 8 Set-Up Per Hour $169 00 EPA 614 Organo P pesticides Per Test $134 40
Decontamination of Equipment Per Hour $169 00 EPA 615 Chlorophenoxy Add Herbicides Per Test $134 40
Drumming Contaminated Soil(w/o Disp) Per Drum $127 50 EPA 608/8081 Chlorinated Pesticides Per Test $95 20
Drum Disposal(non hazardous) Per Drum $149 50 EPA 6010 Metals except Hg(each) Per Test $13 44
Standby Time Per Hour $169 00 RCRA Metals by EPA 6010 Per Test $112 00
Bore Hole Grouting and Sealing(plus mate Per Hour $185 00 TCLP/SPLP Extraction by EPA 1311/1312 Per Test $39 20
Lodging and Subsistence Per Crewman Per Day $108 00 Pre-Disposal sample Per Test $313 80
All Terrain Vehicle Add'l/LF $1 00 GeoProbe Per Day $0 00
Well Permit,if needed Per Each $100 00 EPA 6020 Metals(each)-soil Per Test $18 00
Subtotal $0 00 Subtotal $4,068 96
1360-147 Jenkins Supplmntl SR xlsx Page 1 of 1 Printed 4/11/2013 at 6 07 PM