CN-370000-HW558-DC027F.pdf
PDF 2 MB Posted
- Contract number
- HW558
- Issued by
- Florida
About this file
This is a Task Assignment Notification Form for Contract HW558, issued by the Florida Department of Environmental Protection (FDEP), Bureau of Waste Cleanup. The contract is with Earth Systems, Inc., represented by James Paxton, for site assessment activities at Concord Custom Cleaners #045, located at 1940-77 North Monroe Street, Tallahassee, Leon County (ERIC_4870). The FDEP Contract Manager is Killian Talley. The task assignment authorizes post remedial action soil sampling and analysis activities at the former drycleaning facility site, which has been undergoing remediation through soil vapor extraction systems since 2008.
The task comprises two subtasks: Subtask 1 involves project management costs of $1,551.73, while Subtask 2 covers confirmatory soil sampling and reporting at a cost of $29,133.01, for a total contract value of $30,684.74 with no retainage. The deliverable is a Soil Sampling Report due by August 15, 2021, with the task assignment execution period extending through October 29, 2021. The work includes supervision of 28 direct push technology (DPT) soil borings across the site, collection of 47 analytical samples for laboratory analysis via EPA Method 8260, organic vapor analyzer screening, and Synthetic Precipitation Leaching Procedure (SPLP) analysis for samples exceeding soil cleanup target levels. Labor allocation totals 145 hours, with costs including direct labor ($4,763.16), overhead (63%), general and administrative expenses (65%), fringe benefits (34%), drilling subcontractor costs ($6,869.50), laboratory analysis ($8,495.25), field expenses ($344.40), travel ($1,010.00), and completion fees ($1,247.95). Invoice payment is contingent upon FDEP receipt and approval of the Soil Sampling Report.
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Text version
DEP CONTRACT NO.
Task Assignment #: Module #: Grant #:
Contractor Name:
Contractor Representative:
DEP Contract Manager: Phone #:
DEP Site #:
Site Name:
Address(Street, City, County):
Phase:
Task Description [use additional pages if necessary]:
The Deliverable and Invoice Schedule is attached.
Final Deliverables:
Final Deliverable Due Date:
TASK ASSIGNMENT TYPE AND NOT TO EXCEED AMOUNTS:
FIXED FEE
RETAINAGE:
TOTAL TASK ASSIGNMENT VALUE: $0.00
DEP Task Manager:
DEP Contract Manager:
Contractual Authority:
Contractor Representative:
CC: Procurement Section (MS 93) Section Representative ________
TASK ASSIGNMENT NOTIFICATION FORM
COST PLUS FIXED FEE
COST REIMBURSEMENT
FIXED PRICE FEE SCHEDULE
Period of Performance:
Execution of Task Assignment through:
DEP will review the deliverables to verify that they meet the specifications of this contract and task description. DEP’s Contract Manager shall notify the Contractor of any deficiencies in the deliverable(s) and shall give the Contractor reasonable opportunity to correct noted deficiencies and provide a revised deliverable(s).
WCP TAFORM 01_18
HW558
D000 N/ADC027F
Earth Systems Jim Paxton
850-245-8928Killian Talley
ERIC_4870
Concord Custom Cleaners #045 1940-77 North Monroe Street, Tallahassee, Leon Site Assessment
This Task Assignment authorizes Earth Systems to conduct soil sampling activities in accordance with the attached scope of work, cost estimate, and bid documentation.
Soil Sampling Report
08/15/2021
10/29/2021
$ 30,684.74 $ 0.00 $ 0.00 $ 0.00
$ 0.00
Killian Talley Digitally signed by Killian Talley Date: 2021.05.27 17:32:13 -04'00'
Killian Talley Digitally signed by Killian Talley Date: 2021.05.27 17:32:18 -04'00'
William E. Burns, Jr. Digitally signed by William E. Burns, Jr.
Date: 2021.06.01 12:32:08 -04'00'
James Paxton Digitally signed by James Paxton DN: C=US, E=jpaxton@eathsys.net, O=Earth Systems Inc, CN=James Paxton Date: 2021.06.01 13:51:11-04'00'
$ 30,684.74
Task Assignment Notification/Change Order Deliverables and Invoice Schedule Attachment
WC TAFORM
Contract Number:
Task Assignment #:
Deliverables:
Deliverable Deliverable Due Date
Invoice Schedule:
Requirements for Invoice Submittal Amount to be Invoiced
TOTAL COST
Subtasks 1&2: Submittal of Soil Sampling Report 08/15/2021
Subtasks 1&2: FDEP receipt and approval of Soil Sampling Report $ 30,684.74
$ 30,684.74
HW558
DC027F
Florida Department of Memorandum Environmental Protection
Printed on recycled paper.
To: HW558 Contract Negotiation File Concord Custom Cleaners #045
Tallahassee, Leon County
ERIC_4870
From: Killian Talley, Project Manager Date: May 27, 2021 Subject: Negotiation Summary
HW558 DC027F
Task Assignment authorizes Earth Systems to oversee soil sampling and analysis at the Concord Custom Cleaners #045 site.
Subtask 1: Project Management An automatic calculation based upon total direct labor hours determines the labor hours within this subtask.
Subtask 2: Confirmatory Soil Sampling & Reporting Subtask includes costs and labor for Earth Systems to conduct soil sampling along with analysis and reporting. Earth systems will oversee 28 DPT soil borings across the site. Sample results will be forwarded upon receipt along with recommendations for running SPLP to the Department for approval. Upon receipt of all analytical data, Earth Systems will generate a Soil Sampling Report outlining and describing the field event, procedures, and analytical results. The report will also provide conclusion and recommendations.
The FDEP Project Manager agrees to the scope of work and final cost associated with this Task Assignment. The final cost for this Task Assignment is $30,684.74 with 145 labor hours.
Earth Systems may invoice following the schedule established in the Deliverables and Invoice Schedule Attachment, which accompanies the Task Assignment Notification Form.
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LEVEL OF EFFORT/EXPENSE WORKSHEET
SITE : Concord Cleaners #045 SUBTASK: 2 days DPT Soil Assessment
DATE: 5/27/2021
LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON
STAFF-TITLE WORK DESCRIPTION HOURS
J Paxton- Project Manager Subcontractor coordination & technical oversight during DPT drilling 14
Kelly Arbogast - Associate GeologTravel time to and from site 7 hr each way mobe day early (hotel) 14
2 days (12 hrs per day) Oversight of Core Drilling, 28 DPT borings to 10-ft with fixed lab soil sam 24
Kyle Edwards - Staff Geologist Travel time to and from site 7 hrs each way mobe day early (hotel) 14
2 days (12 hrs per day) Oversight of Core Drilling, 28 DPT borings to 10-ft with fixed lab soil sa 24
Report:
S Pratt - Principal Manager Soil Sampling Report review 2
J Paxton- Project Manager Soil Sampling Report preparation 36
Kath Morse - Drafting Figures 1-4 4
TOTAL LABOR 132.0
EQUIPMENT ITEM RATE COSTING UNIT USEAGE TOTALS
Expendables $32.50 day 2 $65.00
Soil Assessment Kit $139.70 day 2 $279.40
TOTAL EQUIPMENT $344.40
VEHICLE TYPE RATE UNIT USEAGE
Truck $97.00 day 2 $194.00
TOTAL VEHICLE $194.00
PER DIEM STAFF RATE UNIT USEAGE
Staff Geologist- Russell - Meals 3 work days $36.00 per day 3 $108.00 Staff Geologist- Russell - Hotel 3 work days $100.00 per day 3 $300.00 Asso Geol -Arbogast - Meals 3 work days $36.00 per day 3 $108.00 Assoc Geol -Arbogast -Hotel 3 work days $100.00 per day 3 $300.00
TOTAL PER DIEM $816.00
LABORATORY COSTS
PARAMETER RATE # SAMPLES #QAQC
47 soil samples for VOHs by 8260B $66.00 47 $3,102.00 47 SPLP Extraction $40.00 47 $1,880.00 47 leachate for VOHs by 8260B $66.00 47 $3,102.00 SPLP Encore Samplers $8.75 47 $411.25
TOTAL LAB $8,495.25
SUBCONTRACTOR COSTS
NAME PURPOSE COST
Preferred Drilling Solutions (PDS) 3 days DPT 1 Lump Sum $6,245.00 $6,245.00
TOTAL $6,245.00
FINAL --7/24/96
223 12th Avenue North, Jacksonville Beach, Florida 32250, Tel 904.247.0740, Fax 904.247.7650
Florida • Colorado • North Dakota • New Jersey
May 13, 2021
Mr. Killian Talley Bureau Waste Cleanup Florida Department of Environmental Protection 2600 Blair Stone Road, M.S. 4520 Tallahassee, Florida 32399-2400
Subject: Post Remedial Action Soil Sampling Proposal Concord Custom Cleaners #045 1940-77 N Monroe Street, Tallahassee, Leon County
ERIC_4870
Dear Mr. Talley:
Earth Systems has prepared the following Post Remedial Action Soil Sampling Proposal for the Florida Department of Environmental Protection (FDEP) to conducted post remedial action soil assessment activities at the former Concord Custom Cleaners #045 site.
SITE HISTORY
Drycleaning operations began at the former Concord Custom Cleaners #045 site in August 1969 under the name of Northwood Cleaners, which was changed to Big B One Hour Cleaners, then to Concord Custom Cleaners #45. The drycleaning operation ceased and the equipment was removed in November 2005. Concord Custom Cleaners #045 became eligible for the Drycleaning Solvent Cleanup Program in November 1998.
From May 2000 through March 2006 site assessment activities identified significant soil impacts.
Observed lithology included units of sandy clay to clayey sand with an organic rich zone soil horizon from 4.5 to 6 feet below land surface (bls). Preliminary assessment activities revealed minimal groundwater impacts. The FDEP approved an Interim Source Removal (ISR)/Limited Scope Remedial Action Plan (LSRAP) in July 2007. In October 2007, WRS Infrastructure & Environment, Inc. (WRS) conducted excavation of 250 tons of contaminated soil beneath the floor slab and installation of 13 horizontal Soil Vapor Extraction (SVE) wells within the sidewalls of the excavation. WRS submitted the Construction Completion Report in January 2008.
In June 2008, WRS submitted a Remedial Action Plan Modification (Rap Mod) for the SVE system design. The SVE system startup occurred in November 2008. Due to the limited contaminant mass extracted during the first few months of system operations, WRS developed a second Rap Mod for the installation of vertical SVE wells beneath the building subfloor, as well as the installation of vacuum monitoring points (VMPs). The Rap Mod was approved in July 2009, and the system was upgraded with SVE014 (4-well cluster) and 10 VMP wells in March 2010.
Confirmatory Soil Sampling Proposal Concord Custom Cleaners #45, Tallahassee, Florida FDEP Facility ERIC_4870
In May 2010, WRS conducted additional soil and groundwater assessment activities. In September 2010, the SVE system was shut down due to the end of WRS’ contractor task assignment and Professional Services, Inc. (PSI) re-started the system in February 2011. PSI conducted a Modified Active Gas Sampling (MAGS) study in the area south of the former boiler room and in the vacant office space north of the former drycleaners (currently occupied by the Tallahassee Ballet). Based on the MAGS results reported in March 2013, the highest PCE vapor concentrations detected corresponded to MAGS wells MP001 through MP004 located in the current Tallahassee Ballet Facility. PSI recommended that the MAGS points be connected to the full scale SVE system and the SVE system be upgraded with a larger blower. In June 2013, the SVE system was shut down pending upgrading the system with a larger blower. After approval of the Rap Mod Addendum, the system was replaced with an equipment trailer from the former site.
The replacement system commenced operations on January 22, 2014.
In March 2014, the Tallahassee Ballet started occupying adjoining office space north of the former drycleaners and in July 2014 the Farmers Market Produce Cooperative business started utilizing space adjacent to equipment compound. An asphalt overlay was installed in the parking lot in October 2014 to minimize short circuiting of the SVE wells. The Center for Autism and Related Disabilities facility moved out of their location in June 2016. In July 2017, PSI installed a timer on the system and initiated cycling the system to run from 9AM to 9PM. Due to leveling off of the contaminant mass removal, the system was temporarily shut down on August 29, 2017. On September 21, 2017, PSI restarted the system and collected air samples from select vapor extraction wells to determine mass recovery rates within different zones of the treatment areas.
As of September 2017, the SVE system has operated for a total of approximately 100 months, or approximately 8.3 years.
On September 21, 2017, PSI conducted a walk-through of the system with Earth Systems personnel in preparations of site reassignment. On October 19, 2017, Earth System shut down the SVE system as requested by the FDEP.
HISTORICAL SOIL ASSESSMENT RESULTS
Following soil excavation activities in October 2007, WRS collected 10 confirmatory soil grab samples from the walls and floor of the excavation prior to backfilling. Soil samples were submitted to a fixed base laboratory for analysis. Analytical results were compared to Chapter 62-777 Soil Cleanup Target Levels (SCTLs) for Residential Direct Exposure and Leachability Limits to determine the remaining contaminant concentration after excavation. All 10 confirmatory soil samples (SC01 through SC10) had detectable concentrations of tetrachloroethylene (PCE) with two locations (SC05 and SC10) exceeding the SCTLs for Residential Direct Exposure Limits. Soil confirmatory sample location SC05 had a PCE concentration of 17,000 milligrams per kilograms (mg/kg) and soil confirmatory sample location SC07 had a PCE concentration of 27 mg/kg. Soil sample SC05 was collected approximately 6 inches below the existing sewer line on the south side of the building suggesting the soil contamination was caused from leaking sanitary sewer piping. The analytical results from the confirmatory soil sampling is presented in Table 2.
Additional soil assessment activities were conducted in March and December of 2008. Five of the locations sampled following the Source Removal were resampled in March 2008 to reconfirm the data and to analyze the samples by Synthetic Precipitation Leaching Procedure (SPLP). An additional 13 soil samples were analyzed in December 2008 by fixed-base laboratory to complete the horizontal and vertical extent of vadose zone soil contamination. Multiple analytical samples indicated PCE, trichloroethylene (TCE), cis-1,2-dichloroethene (cis-1,2-DCE), trans-1,2-dichloroethene (trans-1,2-DCE), and vinyl chloride (VC) at concentrations that exceeded their respective SCTLs for Residential Direct Exposure and/or Leachability Limits. During the 2008 assessment activities, the greatest concentrations of contaminants of concern identified in soil samples were found under the building and sidewalk beneath the location of the boiler room, which is where the sewer line leaves the building. The vertical extent of PCE-impacted soil ranged from 0.5 feet to 15 feet bls and the largest horizontal extent of PCE-impacted soil was identified in soil samples collected from 2 feet to 4 feet bls.
Based upon a review of previous soil assessment analytical data, four primary source areas have been identified at the site. The first source area was located near the location of the drycleaning machine and former vicinity of the dry-to-dry machine in the northwest corner of the facility (DP004 and DP005) as identified during the May 2006 assessment activities. The second area was located beyond the northeast limits of the 2007 excavation within the facility (SB017). The third area of soil contamination was below the sewer pipe, which runs south out of the building at the location of the boiler room doors and runs under the sidewalk along its south side. Laboratory results indicated the south side of the boiler room as the most contaminated area of the site (SB008). The fourth source area, identified during both the May 2006 and December 2008 site assessment activities, was located around the sanitary sewer manhole in the parking area south of the facility (DP001, SB018, and SB023). The structure covered by the manhole was constructed of brick and appears to have a clay bottom.
The presence of breakdown products of PCE at two of the source areas [both drycleaning machine locations (DP008 and DP004) and the sewer area (SB008)] suggests that water was present in the shallow soil (<5 feet) to facilitate degradation. Near the third observed soil contamination source area, the sanitary sewer manhole south of the facility, laboratory analytical results did not indicate that degradation products are present (DP001, SB018, and SB023).
The impaired vertical migration of PCE and degradation products in shallow soil supports the conclusion that low-permeability soil created a near-surface, perched groundwater table. Soil contaminant concentrations in soil samples collected below 5 feet bls in SB008 are very low compared to the sample collected from 3 feet bls. Finally, despite extremely high concentrations of PCE and daughter products in soil samples collected near the sewer line, concentrations of contaminants in groundwater samples have historically been relatively low.
During the March 2008 and December 2008 soil assessment activities, seven soil samples were collected for laboratory analysis by SPLP. Two analytes (PCE and cis-1,2-DCE) were detected in soil samples analyzed by SPLP. PCE was detected in one soil sample (SC04R) at a concentration (22.8 micrograms per liter [μg/L]) that exceeded the Groundwater Cleanup Target Levels (GCTL) of 3 μg/L. Analytical results are provided in Table 3.
In January 2013, eight wells (MP001 through MP008) were installed to 5 feet bls to conduct a MAGS investigation. One soil sample was collected from each soil boring that exhibited the maximum organic vapor analyzer-photoionization detector (OVA-PID) response and submitted to an approved fix-based laboratory for analysis. PCE, TCE, cis-1,2-DCE, trans-1,2-DCE, and VC were detected in multiple soil samples. A summary of the soil analytical data is provided in Table 4.
In March 2018, Earth Systems was tasked conduct post remedial soil assessment activities that included the installation of 27 soil borings and the collection 43 soil samples for laboratory analysis. This task was not completed due to interior access issues with onsite tenants. The post remedial action soil assessment was postponed until access was possible.
Earth Systems has conducted annual groundwater sampling at the site since 2018. No contaminants of concern (COCs) have been detected at concentrations greater than the MDLs and/or GCTLs in any of the groundwater samples since December 2008.
SUBTASK 1 – Project Management
Allowable costs for Project Management according to the Drycleaning Solvent Cleanup Program (DSCP) contract with Earth Systems.
SUBTASK 2 – Confirmatory Soil Sampling and Reporting
Earth Systems proposes to conduct a mobilization (two people for three 10-hour workdays) to conduct post remedial soil assessment at the site using direct push technology (DPT). Soil analytical samples will be collected from the interior and exterior of the site’s building prior the site being razed for future redevelopment.
The soil analytical data provided in Table 1 through Table 4 was evaluated to identify soil samples in previously excavated areas and samples which previously exceeded SCTLs based on Residential Direct Exposure and Leachability Limits. Based on this evaluation, 28 potential soil boring locations have been identified and are depicted on Figure 11.
Earth Systems will supervise a licensed drilling contractor to install 28 DPT soil borings across the site. Soil samples from the DPT borings will be screened with an organic vapor analyzer equipped with an OVA/PID. Soil samples will be submitted to a fixed-based laboratory for analysis by EPA Method 8260 for VOHs. For any samples exceeding their respective SCTLs, the soil sample will be additionally analyzed for SPLP after confirmation with FDEP. Based on the soil analytical and SPLP data, the effectiveness of the previously operated SVE system can be determined. If a soil plume remains at the site, Earth Systems will recommend source removal activities as the remedial option after the site’s building has been razed and prior to redevelopment. After receipt of the analytical results, Earth Systems will provide the sampling results as a letter report including a recommendation for remedial action or No Further Action.
Costs
Below is a summary of the proposed tasks, cost, deliverables, and due dates. Task
Proposed Cost Proposed Schedule/Deliverables
Subtask 1 – Project Management $1,551.73 October 15, 2021
Subtask 2 – Soil Sampling Report $29,133.01 August 15, 2021
Total/Completion Date $30,684.74 October 15, 2021
If you have questions or comments concerning this proposal, please contact me at (904) 247- 0740.
Sincerely, James Paxton Operations Manager
# of borings Year Boring # Total Samples
1 2006 DP001 6 1
1 2006 DP006 0.5 1.5 6 3
1 2006 DP007 6 1
1 2006 DP008 10 1
1 2006 DP009 10 1
1 2006 SB001 6 1
1 2006 SB002 0.5 1.5 2
1 2006 SB003 6 1
1 2006 SB005 1.5 1
1 2008 SB008 0.5 1 2 3 6 10 6
1 2008 SB009 0.5 1 2 4 4
1 2008 SB010 1 2 4 7 4
1 2008 SB011 0.5 2 4 3
1 2008 SB016 1 2 4 3
1 2008 SB017 1 4 2
1 2008 SB018 2 1
1 2008 SB023 4 1
1 2008 SC04R 1.5 1
1 2007 SC05 3 1
1 2007 SC06 6 1
1 2007 SC08 1.5 1
0 2008 SB008 3 0
0 2008 SB016 4 0
0 2008 SB008 10 0
1 2008 SB021 4 1
1 2008 SB022 4 1
0 2008 SC04R 1.5 0
1 2013 MP002 4 1
1 2013 MP004 4 1
1 2013 MP005 4 1
1 2013 MP006 5 1
1 2013 MP007 5 1
28 Boring Sum 47 Sample Sum
Repeat Borings
Inside borings = 14
Depths
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