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574-Ardaman Associates ' 10 AN 10:20 Ardaman & Associates, Inc. N - PROPOSAL/PROJECT ACCEPTANCE PROJECT INFORMATION: Client Name Sanford Public Works Department Project Name Art Lane Landfill Project Location Sanford, Florida Proposal Number and Date 01-002, February 22, 2001 Description of Services Groundwater and Gas Monitodncl Services for 2001 Estimated Fee $24,926.00 PAYMENT RESPONSIBILITY: invoices to be paid by Sanford Public Works Department Address P.O. Box 1788 City/State Sanford, FL Zip Code 32772-1788 Phone 407 / 330-5681 Attention Mr. Robert G. Herman Title Director APPROVAL OF CHARGES: If the invoices are to be approved by a party other than the party responsible for payment above, please fill in the space below. Firm Address City/State Zip Code Phone Attention Title PROPERTY OWNER IDENTIFICATION: (If other than above) Name Address City/State Zip Code Phone Attention Title SPECIAL INSTRUCTIONS: PAYMENT TERMS: Net 30 days from invoice date; invoices will be sent every four weeks for continued or extended projects. Interest charges, 1 '/.% per month following the due date. PROPOSAL ACCEPTANCE: The Terms and Conditions of this Proposal, including the Terms on this page and the General Conditions on the reverse are; Accepted this 26th day of March , ~¢~ 2001 City of Sanford (~%ty ndivi or (~ rate body name) ( ignatura~~ ~>ro.~l.y J..esso. r a /1~4. c.,.ycc (Print or type nsme of authorized representative and title) O:~yFiles~PROACC~l:>roposal Accept 2001 W-A&A sign lines.acc.wpd Ardaman & Associates, Inc. Geotechnical, Environmental and Materials Consultants February 22, 2001 File Number 01-002 Sanford Public Works Department P.O. Box 1788 Sanford, Flodda 32772-1788 Attention: Mr. Robert G. Herman, Director Subject: Proposal for 2001 Groundwater and Gas Monitoring Services In Accordance with Florida Department of Environmental Protection Permit for Art Lane Landfill, Sanford, Flodda Gentlemen: As requested, Ardaman & Associates, Inc. (Ardaman) appreciates the opportunity to present this proposal for performing the 2001 groundwater monitoring program as stated in the Fiodda Department of Environmental Protection (FDEP) Permit Conditions for the subject landfill. This proposal provides the following services for a network of 8 monitoring wells, 4 gas monitoring probes and one surface water site: · Two semiannual FDEP format monitoring reports · Two water table elevation maps · Computer disk with each semiannual monitoring report for FDEP · Well abandonment of MW4 · Well installation of MW-4R and MW-10 · Installation of staff gage at surface water site · Well completion report for installation of two wells · Lengthening of four existing wells and protective covere two feet · Total depth measurement for 8 wells · Installation of four gas monitoring probes · Collection and Reporting for two quarterly gas probe monitoring events The existing monitoring network includes 7 wells (MW-3 through MW-9) and no surface water sites. Under the new FDEP permit, the monitoring network identifies 8 wells (MW-3, MW-4R, MW-5, MW- 6, MW-7, MW-8, MW-9 and MW-10) and one surface water site (SW-1). Figure 1 shows the approximate monitoring network locations. MW-4 needs to be abandoned because it is in the footprint of the closure stormwater system. For each of the existing wells, lengthen by two feet the PVC well and the galvanized steel protective covers because closure fill will be placed around each well. MW-4R is the replacement well for MW-4. MW-10 will be a new well to be installed in the extreme southwest comer of the site. These two wells will be installed after closure construction. SW-1 will be the pond at the south edge of the site. Staff Gage Installation A staff gage will be installed in the pond at the time of the first sampling so a water level reading can be obtained in all the wells and the pond each sampling event. The latitude and longitude of 8008 S. Orange Avenue (32809), Post Office Box 593003, Orlando, Florida 32859-3003 Phone (407) 855-3860 FAX (407) 859-8121 Offices in: Barrow, Cocoa, Fort Lauderdale, Fort Myers, Miami, Odando, Port Charlotte, Port St, Lucia, Sarasota, Tallahassee, Tampa, W. Pa(rn Beach Art Lane Yard Trash Landfill File Number 01-002 -2- the staff gage in degrees, minutes and seconds to two decimal places with an accuracy of 15 feet and a reference elevation to point on staff gage to an accuracy of 0.01 feet, must be determined and certified by a Flodda Registered Surveyor. The cost of providing this information is not included in this proposal. Semiannual Monitoring Reporting We propose two semiannual ground water sampling events, subcontracting with an analytical chemistry laboratory to perform the required chemical analyses for the two events and prepadng semiannual reports forthe City to submit to FDEP. The semiannual reporting includes groundwater quality results in tables to FDEP format, water levels in all wells in a table, a groundwater contour mapandacomputerdiskwithwaterqualityreportingtables. Thefirstsemiannualsamplingevent will use the existing monitodng well network including the surface water site (7 wells and one surface water site). The second semiannual sampling event will occur after the two new wells have been installed and will consist of the new monitoring network (8 wells and one surface water site). In accordance with the monitoring plan implementation schedule, semiannual samples from the ground water monitoring wells will be collected and analyzed as follows: pH (field), specific conductance (field), turbidity (field), dissolved oxygen (field), temperature (field), total ammonia as N, chlorides, nitrate, total dissolved solids and the EPA 40 CFR, Part 258, Appendix I parameters including iron, mercury and sodium. These Appendix I parameters include 18 metals and 47 organic constituents. In accordance with the permit monitoring plan implementation schedule, the semiannual surface water samples will be collected and analyzed as follows: pH (field), specific conductance (field), turbidity (field), dissolved oxygen (field), temperature (field), unionized ammonia as N, total hardness as CaCO3, total organic carbon, total dissolved solids, total suspended solids, biochemical oxygen demand (5 day), chemical oxygen demand, total nitrogen as N, total phosphates as P, chlorophyll A, iron, mercury and the EPA 40 CFR, Part 258, Appendix I parameters. In addition, ground water levels in all wells and at the surface water site will be measured to the nearest 0.01 foot and reported in a table as well as on the water quality analyses form. A ground water contour map for the monitored aquifer zone will also be provided semiannually. Well Abandonment In this task, MW-4 will be abandoned after the first sampling event before closure construction begins at the landfill. Well Installation Program MW-4R and MW-10 will be installed after closure construction is complete. MW-4R is a replacement well for MW-4 and MW-10 is to be installed in the extreme southwest comer of the landfill property. The well installation program for each of these surficial aquifer wells will involve performing a soil bodng, installing the well, developing the well, and preparing the well completion report. The wells will be constructed similar to existing wells and be 15 to 20 feet total depths depending on the soil profiles. The 2-inch diameter PVC wells will have a collection zone of 10 feet. Art Lane Yard Trash Landfill File Number 01-002 -3- The top of casing elevation to an accuracy of 0.01 feet, the pad elevation to an accuracy of 0.1 feet and the latitude and longitude of each well in degrees, minutes and seconds to two decimal places with an accuracy of 15 feet, must be determined and certified by a Florida Registered Surveyor. The cost of providing this information is not in this proposal. Existing Well Lengthening Each of four existing wells will be lengthened by two feet because closure fill is planned around the wells. The PVC pipe and galvanized steel protective covers will be lengthened. The top of casing elevation to an accuracy of 0.01 feet and the pad elevation to an accuracy of 0. 1 feet must be determined and certified by a Florida Registered Surveyor. The cost of providing this information is not in this proposal. Gas Monitoring Program Four gas monitoring probes will be installed in accordance with the details prepared by WCG, Inc. as part of the closure specification plans. These flush mounted probes will be 9-10 feet deep and will be located near MW-5, MW-6, MW-8 and MW-9. Construction of these probes is planned for August 2001 after closure is mostly complete. In addition, two quarterly gas probe monitoring and reporting events are proposed this year. The cost estimate for this work is provided in Table 1. The monthly invoices will be based on work expended and units performed in accordance with the contract fee schedule. The maximum amount not to be exceeded without further written authorization is $24,926.00. If the proposal meets with your approval, please have the appropriate person sign the enclosed proposal acceptance forms and ratum one for our records. The work will be in accordance with existing contract 98-99-27. Please do not hesitate to contact us should you have questions or need additional information. We appreciate the opportunity to submit this proposal for these ground water related services. Very truly yours, eS~al~:~Pn;g~;~ Rodney D. Ghioto, P.E. eer D,rector, water .esources HGS:hgs Enclosures (3UO:IW*8 :t(:)/,J.JO 00~ OOl. 0 * 9~gi~JJNOVt ,U.J'W~O I~J.VM b quoHn~uoO ~ · Oral ~etallooee~ i; Umlagp.lV ~ 8a. LJg 9NNO.UNOI~ am aau. vM nov:anne I.-Me 0 NOLLVO0'~ 'ram aaao~m~ #-Mfi ~ Art Lane Yard Trash Landfill File Number 01-002 -4- Table 1 ESTIMATED COSTS Staff Gage Installation 1 hrs @ $102.00 per hr $102.00 6 hrs @ $40.00 per hr $240.00 2 hrs @ $34.00 per hr $68.00 Materials &Supplies $100.00 Mileage Cost Estimate $25.00 Subtotal Staff Gage Installation $535.00 Semiannual Ground Water Monitoring Program Water Quality Sampling 50 hrs @ $40.00 per hr $2,000.00 Materials &Supplies $200.00 Meter Usage $150.00 Mileage Cost Estimate $80.00 Analytical Laboratory Program Groundwater Parameters (16 @ $500.00 each) $8,000.00 Surface Water Parameters (2 @ $600.00 each) $1,200.00 Groundwater Contour Maps and Reporting 12 hrs @ $102.00 per hr $1,224.00 18 hrs @ $40.00 per hr $720.00 18 hrs @ $34.00 per hr $612,00 Miscellaneous Expenses $50.00 Subtotal Semiannual Monitoring Program $14,236.00 Well Abandonment Mobilization - 1 @ $150.00 $150.00 Abandonment - 4 hrs @ $140.00 per hr $560.00 Reporting - 1 hrs @ $40.00 per hr $40.00 Subtotal Well Abandonment $750.00 Well Installation Mobilization - 1 @ $150.00 $150.00 SPT Bodngs 50 LF @ $10,00 per LF $500.00 Install Wells 50 LF @ $30.00 per LF $1,500.00 Well Head Finish 2 @ $250 each $500.00 Art Lane Yard Trash Landfill File Number 01-002 -5- Table 1 (Continued) Field Tech Supervision - 24 hrs @ $40.00 per hr $960,00 Mileage Cost Estimate $40.00 Engineering Coordination - 4 hrs @ $102,00 per hr $408.00 Soils Laboratory Program Visual Classifications $100.00 Sieve Analyses - 6 @ $32,00 each $192.00 Percent Fines - 4 @ $22.00 each $88.00 Subtotal Install Wells $4,438.00 Well Development 18 hours @ $40.00 per hr $720.00 Mileage Cost Estimate $40,00 Pump Usage $250.00 Subtotal Well Development $1,010.00 Well Completion Report I hrs @ $102.00 per hr $102.00 8 hrs @ $40.00 per hr $320.00 4 hrs @ $34.00 per hr $136.00 Miscellaneous Expenses $25.00 Subtotal Prepare Report $583.00 Well Lengthening Mobilization - 1 @ $150.00 $150.00 Cutting/Welding plus materials 4 x $120.00 each $480.00 4 hrs @ $40.00 per hr $160.00 Mileage Cost Estimate $20.00 Subtotal Well Lengthening $810.00 Gas Monitoring Program Mobilization - 1 @ $150.00 $150.00 Install Probes 40 LF @ $30.00 per LF $1,200.00 Probe Pad Finish 4 @ $75 each $300.00 Art Lane Yard Trash Landfill File Number 01-002 -6- Table 1 (Continued) Mileage Cost Estimate $50.00 4 hrs @ $102.00 per hr $408.00 8 hrs @ $40.00 per hr $320.00 4 hrs @ $34.00 per hr $136.00 Subtotal Gas Monitoring Program $2,564.00 TOTAL ESTIMATED COSTS $24,926.00 JCITY OF SANFORD AGENDA MEMORANDUM [ DATE March 26, 2001 SUBJECT: Groundwater Monitoring - Art Lane Landfill AUTHORIZED BY: : C ve EXT: 56~] MOTION/I~COM1H~NDATION: R~omm~d City Corar~sion approve the proposal from Ardaman & Associates, Inc. - Gr]ando, Florida 32859 - for Art Lane Lsnrlfi!! groundwater monitoring at the rate~ ~l~cified for an ~stimated amount - not to ox~ $24,926. BACKGROUND: Attached is a proposal t~om Ardaman & Associates, Inc. to provide a groundwater monitoring program for the Art Lane Landfill through the year 2001. The proposal will provide the City with two ser~i-nnnual groundwater reports as required and in accordance with the Florida Department of Environmental Protection Agency. It also includes, as described in the attached, numerous other work activities associated with the construction phase of the Art Lane Closure. Staff and WCG personnel (firm contracted by the City to assist with the landill! closure) have reviewed the proposal and deem all work necessary. Further, the work/costs are in accordance with the existing coreract (RFPS 98/99-27) between the City of Sanford and Ardaman & Associates, Inc. Funds are available in the Art Lane Closure Account No. 001-4002-534.34-22. Attachments: 1 Reviewed by: CM CA Deputy CM __ I I Finance Dir~kx)' Regular Consent X Work Session Briefing Other __