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Home My WebLink About1st Change Order 05/27/2022 w BOARD OF COUNTY COMMISSIONERS County of' Monroe Mayor David Rice,District 4 The Florida Keys � � � Mayor Pro Tem Craig Cates,District 1 G Michelle Coldiron,District 2 James K.Scholl,District 3 Holly Merrill Raschein,District 5 Memorandum DATE: 05/26/2022 TO: BOCC FROM: Kevin G. Wilson P.E. Kevin G.Wilson, P.E. ' � � �"'" 2022.05.26 10:19:00-04'00' SUBJECT: Proposed Change Order to be Approved Attached is proposed Change Order#1 Professional Assessment of Per/Polyfluoroalkyl Substances (PFS) Services for Joe London Fire Academy project. This change order increases the final contract sum by $29,200.00. The substantial completion date is to be determined. Monroe County Ordinance 027-1998 and subsequent amendments provide authority for the Administrator to approve change orders within specified limits after providing Board of County Commissioners with at least 24 hours to review them and pose any questions or objections that they may have. It is the Administrator's intent to approve the attached change order under that authority on Friday, May 27, 2022. Ma CAE CouNTYIENGINEERINGI PROJECT MANAGEmENT CONTRACT CHANGE ORDER PROJECT TITLE: INITIATION DATE: April 21, 2022 Professional Assessment of Per l Polyfluoroalkyl Substances (PFS) Services for CHANGE ORDER NO: 1 Joe London Fire Academy CONTRACT DATE: January 21, 2022 TO CONTRACTOR: Cardno 380 Park Place Blvd Suite 300 Clearwater, FL 33759 The Contract is changed as follows: The original (Contract Sum) (Guaranteed Maximum Price)............................................$155,960.00 Net change by previously authorized Change Orders...................................................$(,00 The(Contract Sum) (Guaranteed Maximum Price) prior to this Change order was.............$1 5,960.00 The(Contract Sum) (Guaranteed Maximum Price)will be increased by this Change Order..$29r200.00 The new (Contract Sum)_(Guaranteed! Maximum Price) Including this Change Order is.......$185,166.00 The Contract Time Will be(increased) by........... ....... ............. ....--,- 0 Days The date of Substantial Completion as of the date of this Change Order is................-....TBD Detailed description of change order and justification: The PFOS plume was not fully delineated in the previous testis . Additional wells must be installed and testing conducted to determine the limits of contamination. This change order is 0.18.7%of the original contract price. Not valid until signed by Owwwuner,Architect if applicable),, and Contractor ENGINEER: ' 2- Date CONTRACTOR: Nl Crate DIRECTOR FACILITIES M'A,INT'. N/A Kevin G.Wilson,P.Pate COLINITY/ASSISTANT ADMINISTRATOR; 2022A5.27 13:56:53-04'00' Roman Gastesi Date Kevin Wilson Change Order Attachment per Ordinance No. 004-1999 • Change Order was not included in the original contract specifications. Yes No ❑ If Yes, explanation: After testing of the PFOS plume was completed, it was determined that the outer limits had not been located. Further well installation and monitoring is required to find the extent of that contamination. • Change Order was included in the original specifications. Yes ❑ No If Yes, explanation of increase in price: • Change Order exceeds $50,000 or 5% of contract price (whichever is greater). Yes ❑ No� If Yes, explanation as to why it is not subject for a calling for bids: • Project architect approves the change order. Yes ❑ No,& If no, explanation of why: Architect was not required for this project. • Change Order is correcting an error or omission in design document. Yes ❑No� Should a claim under the applicable professional liability policy be made? Yes ❑ No ky Explain: ��IIIIIIII 4;�j Shaping the Future April 6, 2022 Kevin G. Wilson, PE Assistant County Administrator Cardno W. J.J.§ ir]::::.IK2 yl..n9.2y 380 Park Place Blvd Suite 300 Clearwater,FL 33759 Fire Chief James Callahan USA Monroe County Fire Rescue Phone 80086183114 1100 Simonton Street Fax 7275391294 Key West, FL 33040 2.! it qa u r .!.y::::.fl..::...q Re: Change Order Request for Installation of three new monitor wells Joe London Fire Training Academy, Little Crawl Key, Marathon, Florida FDEP Facility ID: ERIC_7416 Dear Kevin: Cardno was issued a second amendment to Task Order for Professional Assessment of Per- and Polyfluoroalkyl Substances at the Joe London Fire Training Academy on January 21, 2022. This Task Order Amendment included remediation of impacted soils, quarterly groundwater monitoring and reporting, and installation of six (6) groundwater monitor wells at the referenced site. The request for six (6) wells was made in error due to confusion regarding multiple comment letters from FDEP regarding the prior assessment report results. In fact, four (4) wells were being requested by FDEP. Cardno installed and sampled the four (4) wells requested by FDEP in February 2022, and has determined that the PFAS impacts to groundwater extend beyond the recently installed monitor well network to the south, and that additional wells will be required to delineate these impacts. Based on discussions with Monroe County staff, Cardno is proposing three (3) additional wells at the locations shown on the attached Figure, and is adding these wells to the proposed quarterly sampling events included in the Task Order (Amendment 2) under Task 4. Change Order Request This Change Order (CO) request is for installation of three (3) additional monitor wells, and the addition of these wells to the three future quarterly groundwater sampling events included in the previous Task Order assignment (including sampling, laboratory analysis, and reporting). The CO request for Task 1 (well installation) is $20,600 and the CO request for Task 4 is $8,600 (Total CO request of$29,200). This change order will bring the total Amendment 2 Task Order amount to $185,160. This CO request takes into account the remaining budget within Task 1. Specifically, the cost proposal for installation of six (6) wells in the Amendment 2 Task Order was $26,620, of which approximately $5,000 remains in that budget. The estimated cost for installation of three wells G:\DES\ENV\Proposal\2022\Mon roecou nty\Joelondoncofor3wells_4-2022.Docx Kevin Wilson Page 2 April 6,2022 included in this change order was $25,600. However, subtracting $5,000 results in a CO request of$20,600 for Task 1. Schedule As with the last round of well installations, sonic drilling Contractors are backlogged many weeks. In anticipation of CO approval, we have requested this work be added to the Contractors schedule for the first available opening. At this time, that would be the later part of June 2022. In the meantime, Cardno will reach out to FDEP with a modified proposal for well installation and sampling, including a modified schedule (pending approval to proceed by Monroe County). We appreciate the opportunity to provide this proposal for environmental assessment of this site. Please contact me if you have questions or comments regarding this proposal, or if we can be of additional assistance. Sincerely, � Terry Griffin, PG Senior Principal / Hydrogeologist For Cardno, Mobile Phone Number 727-224-9480 G:\DES\ENV\Proposal\2022\Monroecounty\Joelondoncofor3wells_4-2022.Docx i 12/2020 ;rn1 34.2 3/2022 � �IJ � w'~ 28 IV �✓,OiC � �1 a � ,""� MW 16 ��'� 40 �� HNO"✓ 12/2020 - ,, 3/2022 �i� i 3/2 73 177 w 12/2020 URVEY 12/2020 1 7.8 MW-8 MW-7 7L0d 3/2022 >.) n 2fi'40 12/2020 30 6.5 3/2022 � 12/2020 z a 29 it IIIIS 7�} ,3/2022 � MW-5 M1N-15 li i i 12/2020 3/2022 � p 45 ,�12,��40' � � i/j��I �� " a�fil�✓'��/� .V /° �� 1f `R 7,r� Mw-ae f 12/2020 3/202�2 MW 13 z 110 � r 3/2022 58 I 3/2022 ((/ A /d Mw-zo a�� 3/2022 3/2022 3/2022 1 o� 3/2022 a ' MW 21 � � l 9 /,./ �� nnw zz""' a � r ,?4+iy .- � / Jai' ua 7•,l' „ou JOE LONDON FIRE TRAINING ACADEMY FIGURE 6 `'1COMBINED PFOS&PFOA 56633 OVERSEAS HIGHWAY,LITTLE CRAWL KEY CONCENTRATIONS IN MONROE COUNTY,FLORIDA GROUNDWATER(nglL) LEGEND dl"I C,\N1 1. HIS 1° I(-� l II \11 r 1 ��IS NOTA SURVEY 17.50-- (12.50)GROUNDWATER El-EVATION(FT) MW-6 MW 7 / Add n 13.544 wII =alp 12.54 /p MW- .46 f� 0 3 l W 13, /(r / NS MW-17 I I NS f v 1 MW 21 9 0 rr �3 9 YI 1 7 a i MW 22 y� JOE LONDON FIRE TRAINING ACADEMY FIGURE 6A 56633 OVERSEAS HIGHWAY,LITTLE CRAWL KEY GROUNDWATER AQUIFER MONROE COUNTY,FLORIDA MARCH 2,2022