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Home My WebLink AboutContract 44606-CO4 (2).1r 1`? ,� ' i(1 E ., �i10 u �E��I'�Jd' . ��N'�1�� . � �' 0 �� _ ', ,l FORT WORTH, City of Fort Worth Change Order Request Project Name Northside IV Elevaled Storage Tank (EST) and Pipeline City Sec # 44606 Client Project #(s) Fort Worth Water Dept (00370); CDM Smilh (63234); Landmark Strurctures I(1395) Project A new tank in Northside IV Pressure and asoociated 30-inch pipeline with Tunnel Under US 287, Design M&C C-22296; Descriplion Construcfion M&C C-26301 Contractor Landmark Structures I, LP Change Order #� Dale 2118/2016 City Projecl Mgr. Farida S Goderya, PhD, PE Cily Inspector Mike Hill Dept, Original Contract Amount Extras to Dale Credits fo Date Pending Change Orders (in M&C Process) Contract Cost to Dale Amount of Proposed Chanqe Order Originai Funds Available for Change Orders Remaining Funds Available for ihis CO Additional Funding (if necessary) Water .67 .67 CHANGE ORDERS to DATE (INCLUDING THIS ONEJ AS % OF ORIGINAL CONTRACT MAX ALLOWABLE CONTRACT AMOUNT (ORIGINAL CONTRACT COST + 25%J This Change Order No, 4(CO-04) covers the following; (REASONS) FOR Contract Time Totals CD '40,000.00 480 i92,891.67 133 $0.00 0 19.10% $4,675,000.00 CMR-01 - Installation of a CLSM low-permiability barrier in the pipeline trench to inhibit groundwater migration per recommendation. CMR-02 - Supply, installation, and testing of additional cathodic proteclion anodes at two pipeline stations due to and the installed pipeline. . .. _ _,._ � Lea.. , � Additional details may be found in the aftached pages. l�u�i�l �o � SCAN��fl �� ' �, x�� v�� $� o� �� t�8��. ��i��%') ��I Cd�'�l ��CRC'CA��1� ji� �1'. UIIf0iti6i, 4� i; It is understood and agreed that ihe acceptance of this Change Order by the contractor conslilutes an accord and salisfaction and represents payment in full (both time and money) for ail costs arising out of, or incidenlal to, lhe above Change Order. Contractor's Com an Name Contractor Name ct " Date Landmark Structures I, LP Marshall Peterson ,t�.;s/".; /�� /''�--� �;'�� /i,_ � C � O � � � � � � .�.+ Q L � 0 � �.�.. � � O � ��\ � V � � � U x F a 3 F CG w � a � � � � U N � � U `ai � U � Y (6 E � (O J d. �.j a � c (Q L � � � � W � Y Q � U F- ' ' � S N � :o 0 N � O p Z LL � � N N N U U c2S � c rn .N a� 0 N � � a`� � c � c F=- L .� .� d U C O � N N �U � � (6 � � � a"� a` > o — M N co � N N U � o U Z � � C C Y O C U c�,a = � N C C Q U °' � o � U 'Q Z � � �� a � 'o c � a °' � U � 'o a � 0 N � N a� iu � � � I � -o O m m U d J N � U � � � E cc6 J `o U � U � w O c-I v bA t0 a � c O U � Q L N v O � OD C t � � (D � CDM Sm�th Memorandum To: Marshall Peterson Byron Williams Landmark From: Chad Bartruff, PE CDM Smith (TX F-3043) Date: February 18, 2016 Subject: City of Fort Worth NS-4 EST and Pipeline CMR-01 Pipeline Groundwater Barrier Attached for reference is documentation related to the above referenced item identified as CMR-01. • CDM Smith `Pipeline Groundwater Barrier' memorandum (dated December 2, 2014) • Landmarlc'Pipeline Groundwater Barrier' proposal (dated December 12, 2014) • SJ Louis `Concrete Cut-off Wall' proposal (received October 5, 2015) The origin of the CMR is described in the CDM Smith memorandum. The original proposal from Landmark was received, and at that time, additional information was requested by CDM Smith. Additional information, in the form of the SJ Louis proposal, was received and reviewed by CDM Smith and subsequently discussed with Landmark. As noted in our previous discussion, the quantities in the proposal from SJ Louis were well in excess of what would be expected based on the original installation detail provided in the CDM Smith memorandum, including allowances for construction excavation tolerances. It was understood that Landmark agreed with this, and upon review of the probable construction requirements, subsequently suggested that the proposal be refined to reflect the construction and provision of the barrier at one-third of the original excavation, materials, and labor. CDM Smith discussed the revised proposal with the City and it was determined to be acceptable. As such, it is understood that the CMR-01 proposal is for a total value of $ 3,960.00. C M R-01 CMR-01PlpelineGroundwater0arrier20160217.doa Page 1/14 Byron Williams Marshall Peterson February 18, 2016 Page 2 The original Landmarlc proposal included a request for additional contract time. As the requested proposal brealcdown information was not provided as requested, the completion of the worlc did not iinpact substantial completion, and Landmarlc did not otherwise complete unrelated punchlist items in advance of the CMR-01 worlc, the additional time is considered not applicable and is not approved, It should be noted, that the substantial and final completion dates for operational availability of the tanlc and project completion, respectively, are considered acceptable and the application of liquidated damages is not being considered at this time. cc: Farida Goderya (FWWD) Milce Hill (FWWD) File: 63234-05.06.40 CMR-01 CMR-01PIpeIlneGroundwaterBarr1er20160217.docx Page 2/14 CDM sm�th Memorandum To: Marshall Peterson Landmark From: Chad Bartruff, PE (TX-91688) CDM Smith (TX F-3043J Date: December 2, 2014 Subject: Northside IV Elevated Storage Tank and Pipeline Project Pipeline Groundwater Barrier In follow-up to the November 17, 2014 meeting involving City of Fort Worth, SJ Louis, Landmark, and CDM Smith regarding discussion of the identified groundwater concerns related to the NS-4 pipeline tunnel, this memorandum is to address an action item assigned to CDM Smith. As discussed in the meeting, Landmark advised migration of groundwater within and along the pipeline trench towards the elevated storage tanlc foundation is a potential concern. Landmarlc was to confirm with their structural engineer regarding this potential situation and advise the City and CDM Smith of his/her comments. However, in effort to inhibit the potential groundwater movement along the pipeline trench, the City requested that CDM Smith provide a detail for a controlled low-strength material (CLSM) pipeline collar. Accordingly, the attached Detail BE, as shown on page 2 of this memo, is proposed for installation at approximately Station 5+60. The collar shall be at minimum of the dimensions shown and shall be placed in undisturbed earth. For installation and placement, Groundwater flow shall be managed as required for placement and curing of the CLSM. cc: Mike Hill (FWWD) Farida Goderya (FWWD) File: 63234-05.02.10 CM R-01 63239_PlpelineGroundwaterCallar_20141202.doa Page 3/14 Marshall Peterson December 2, 2014 Page 2 i [�II►1 18�� y �� MIN �RENCH NJIDTH MIN (EtEYC7�lCl� ��h�� FILL ,�''� NOTES: 3" WIC7E, �—MIL ��'C�L�'ETH'r`LENE CACJTIU�lAF2Y WATERLIhlE MAF�i�ER TAI�E, �—�EET AE��VE TCiI' t�F F�IF'E. TC}P OF GRAf�ULAR PII�E ��c� ��a�� BARRIEk� TO BE K�YED INTO UNDISTUR��D �ARTH 1 �" MIN ALI� AROUND TRENCH P�RIM�T�R AND 1 S� MIN 7WIGKN�SS UNC315TUR8ECi EARTH �... . � . � • : !-• � � . . � �. �. . ' � ! � � � . � ... � � � 1 TOP ��VEL f7F CLSN9 SFiALL. BE PLACED TO ELEVATION TO PROVIDE MINIMUM 1-�T FR�E��ARD TC? D�S�RV�D GROUN�WAT�R STATIC LEVEL, �tJT NO L�S� TFIAN 24" �EL.QW FINISMED CaRADE • ' ' �: ' '� � ► . ��.. . _�� '� �. �i i :i r � , • '� � ; CM R-01 63234_PlpellneGroundWalerCollar_20141202.docx Page 4/14 Bartruff, Chad From: Bartruff, Chad Sent: Sunday, December 14, 2014 3:42 PM To: Peterson, Marshall; Khole, Sagar Cc: Goderya, Farida Subject: RE: 1395 - Northside EST - Tunnel Meeting Follow-Up Marshall — Please provide complete breakdown of proposal costs. As submitted, allocation of costs associated with the proposed work cannot be evaluated. Thanks — Chad Chad D. Bartruff, P.E. CDM Smith (TX #F-3043) 100 Throckmorton Street, Suite 600 Fort Worth, TX 76102 Tel: (817) 332-8727 Fax: (817) 820-0450 bartruffcdnn,cdmsmith.com cdmsmith.com � Please consider the environment before printing this email. From: Peterson, Marshall [mailto:mpeterson@teamlandmark.com] Sent: Sunday, December 14, 2014 3:36 PM To: Bartruff, Chad; Khole, Sagar Cc: Goderya, Farida Subject: RE: 1395 - Northside EST-Tunnel Meeting Follow-Up Chad, Please see the attached proposal. Thanks, Marshall From: Bartruff, Chad [mailto:BartruffCDCa�cdmsmith.com] Sent: Wednesday, December 03, 2014 2;05 PM To: Peterson, Marshall Cc: Williams, Byron; Hernandez-Sevier, Esther; Goderya, Farida; Sanders, Gregory; Mike Hill (Mike. Hill @fortworthtexas.clov) Subject: RE: 1395 - Northside EST - Tunnel Meeting Follow-Up Byron — Please see the attached memo/detail that was at the November 17t'' meeting. We are reviewing the documentation provided by SJ Louis and will advise of questions/comments as soon as possible. Thanks — Chad Chad D. BartrufF, P.E. 1 CM R-01 Page 5/14 CDM Smith (TX #F-3043) 100 Throckmorton Street, Suite 600 Fort Worth, TX 76102 Tel: (817) 332-8727 Fax: (817) 820-0450 bartruffcd(r�,cdmsm ith.co m cdmsmith.com � Please consider the environment before printing this email. From: Williams, Byron [mailto:bwilliams@teamlandmark.com] Sent: Tuesday, December 02, 2014 1:26 PM To: Goderya, Farida; Bartruff, Chad Cc: Peterson, Marshali; Hernandez-Sevier, Esther Subject: FW: 1395 - Northside EST-Tunnel Meeting Follow-Up Farida / Chad, My apologies on the delayed delivery on these tickets. Little miscommunication on my end internally. See attached backup based on previous request from our meeting. Thanks, Byron Williams Landmark Structures Office 817.230.8815 x 1215 Mobile 817.602.9103 bwilliams@teamlandmark.com www.teamlandmarl<.com � �� .,;�',ai � A`y9 i�i 9M{4IVi`A.�.�� i`R EI�.:�,�;�IJ•ic� Ex��E;cliiliun� From: Sam Hanna [mailto:SamH@S]Louis.Coml Sent: Tuesday, November 18, 2014 8:47 AM To: Williams, Byron; Pete Stahl Cc: Peterson, Marshall; Dina Wilson; Justin Clifton; Bryce Kohler Subject: RE: 1395 - Northside EST - Tunnel Meeting Follow-Up Byron, We appreciate you setting up this meeting and assisting in this resolution. As a follow up to our meeting, see attached concrete tickets to submit to CDM. We also need to find out what is holding up our August Pay Estimate. All of the pipe installation and connections have been completed. The remaining work is subsidiary to our contract and will be done once the engineer provides a solution and we are paid to date. Our office is filing a lien on this invoice as of today. Please let me know how soon we can expect payment. Thanks, Sam Hanna, PE, SIT Project Manager C M R-01 Page 6/14 S. J. Louis Construction of Texas LTD. 520 S. 6th. Ave Mansfield, Texas 76063 817-477-0320 Office 817-975-1907 Celi "EXCELLENCE /N UNDERGROUND CONSTRUCT/ON" From: Williams, Byron [mailto:bwilliamsCa�teamlandmark.com] Sent: Tuesday, November 18, 2014 8:18 AM To: Sam Hanna; Pete Stahl Cc: Peterson, Marshall Subject: 1395 - Northside EST - Tunnel Meeting Follow-Up Sa m, Just to follow up on our meeting yesterday afternoon, please forward the batch tickets as requested by the City of Fort Worth for the CLSM worlc depicted on Contract Drawing CZ-11:Detail EB for both the North and South side of the tunnel within the next couple of days. This will mitigate the underlying concern I noticed that these were installed per plans and specifications. I will keep in touch with CDM Smith throughout this weelc in regard to the additional detail to the Vault and the their intentions. Once I receive the revised detail I will forward it on. As discussed, I want to maintain the sense of urgency to finish up this project as soon as feasible and maintain both of our firms continued relationship with the City of Fort Worth. It is our intent to have this tanl< ready to fill prior to the end of the year and finish up all site work during the month of January 2015. Feel free to give me a call if you have any questions or concerns. Thanks, Byron Williams Landmark Structures Office 817.230.8815 x 1215 Mobile 817.602.9103 bwilliams@teamlandmark.com www.teamlandmark.com � �IVC)M/�RK Elevating Expectatians C M R-01 Page 7/14 � �,,, � � � � � December 12, 2014 CDM Smith 100 Throcicmorton Street Suite 600 Fort Worth, TX 76102 Attn: Chad Bartruff, PE Re: Pipeline Groundwater Barrier Northside IV EST and Pipeline City of Forth Worth, TX, Project No. 00370 Dear Mr. Bartruff: Landmark Structures 1665 Harmon Road Fort Worth, Texas 76177 £317.439.£3886 Phone 817.439.9001 Fax www.teamlandmark.com As requested, the following proposal is for the installation of a controlled low-strength material (CLSM) pipeline collar at Station 5+60 per your memo dated December 2, 2014. The additional cost and contract time is detailed below. Additional Cost: $11,880.00 Includes material, labor, equipment, and Landmarlc overhead & fee. Additional Contract Time: Additional time for execution of worlc 10 Calendar Days Additional time for delay 32 Calendar Days* Total Additional Time 42 Calendar Days *To match actual delay from 11/17/14 to approval of change order. Estimated additional time shown. Attached is a proposal and description of worl<from SJ Louis for your reference. Acceptance of this proposal will constitute acceptance with the means and methods described above and will also tal<e the place of any submittals requested for this additional work. No additional submittals will be provided for this worl< or installation. Please do not hesitate to call my office should you have any questions. Best Regards, LANDMARI<STRUCTURES I, L.P. �� , , r." t ( �_ Marshall Peterson Project Manager Attachments: - SJ Louis Proposal, Dated 12/12/14 CM R-01 Page 8/14 Contrr�ctor's Modification Request - Proposal Northside IV Elevated Storage Tank [EST] and Pipeline Harley Ave., Montgomery St. and Rip Johnson Rd. Resparse Required By Marshall Peterson Landmark Structures 1665 Harmon Road Fort Worth, TX 76177 Via Email of Work C.M.R. -Proposa! 2 � December 12, 2014 Transmitled By Sam Hanna Project Manager SJ louis Construction of 7exas is submitting the following pricing in regards to the letter sent by CDM Smith on 12/2/2014 requesting placement of a CLSM cut off wall at approximate station 5+60. This pricing indudes the excavation, shoring and trench safety around the live 30" ductile iron pipe at station 5+60 per detail "BE"' provided in the letter. Pricing also inciudes the maintenance and dewatering of the current groundwater for placement and ' curing of the CLSM trench in addition to the labor, equipment, fuel and CLSM material required to perform this additional work. '', treakdowu of Proposal Northside IV Elevated Storage Tank [EST] and Pipeline Joint Bond Installation to Separate Contractors Pipe Item Description UniJs Quanlity Ueit Price New-1 CLSM Cut Off Wall at Station 5+60 EA 1 $ 10,800.00 Net Change: Requested Additional Calendar Days: f acceptable, please provide an authorization signature belo�v and return one (1) copy to our ofCce. :J. Louis Co�islructio�t Acliou :c'r.. S.J. Louis Proiect No. 21332 Proiect File .` S J. Louis Conslruction of Texas Ltd. 520 A S. 61/t Avenue Mansf%ltl, Texas 76063 �8r�� 4�� o3zo off�e �sr�� 4�� oss2 F�X Cos! $10,80� $10,800.00 10 Days CM R-01 Page 9/14 Bartruff, Chad From: Sent: To: Cc: Subject: Attachments: Chad, Williams, Byron <bwilliams@teamlandmark.com> Monday, October 05, 2015 5:04 PM Bartruff, Chad Hernandez-Sevier, Esther 1395 - Northside CLSM CO Information 2014.12.12 - 1395 - Pipeline Groundwater Barrier.pdf; SJ Louis Backup.pdf I am digging through some of the information outstanding for the Northside Tanl< and I see that we still have the Change Order for the CLSM install out there pending. I understand there has been a substantial amount of time since this worl< was installed and it appears that the ball was left in our court to provide you some additional brealcdown information. When I met with Pete Stahl on site to finish up the punch list he mentioned this to me and has since provided some more information fairly quicl<ly as if it was provided, but I cannot tell that it had. The attached letter was the original proposal sent in December 2014. You responded on 5/6/15 requested additional information and a breal<down of these costs for evaluation. The second attachment provides this to include the invoice from Cow Town Redi-Mix (referencing a ship date of 2/11/15), the original proposal provided in our December letter, a specific time sheet to the worlc performed that day by SJ Louis, and a thorough breal<down of how the original number was generated. Lil<e I mentioned, I am somewhat lool<ing at this from the outside-in at this point but understand that the worl< was completed per the change order due to the ground water concern we met about previously. Give me a shout to discuss at your convenience and let me Icnow what else is necessary to continue this one for final approval before we close this project out. 13yron Williams Sr. Project Manager Landmark Structures Office 817.230.8815 x 1215 Mobile 817.602.9103 bwilliams(cilteamlandmark.com www.teamlandmark.com � ��iY1��. El�velinc� Expe�:talions CMR-01 Page 10/14 � ` � �o�' `�'''o�r� ��c�� . REMIT TO: - CowTown Redi 1VIIx, inc. ' . � �� 6 �Q9� p.o.Box 1G2327 � Fort Worth, 'TX 7G 161 W�ixcoNce�rE ,,;� .; .• �,;.••�' �(817� 759-1919 Fax: (817) 759-171G D►�patc�i _ , ' (81�) 759-2599 � Invoice # � 1 Q8�76 BII.L. TO: ' • SHIP TO: SJ.Louis Construciion of Texas . • , 520 South 6th Avenue N 287 AT AVONDAL.E-HASLET RD Mansfteld, 7X 76063 ' • , . CMR-01 Page 11 /14 � �1 i � ��il�'��o• �1�� j�'�.c.d �_..�e.Q.� E..�' t'o�l ,ri �'au.�..e . G; c .i �i�ic� �7v�ii,��, -�_ _n_ � �.._ .�� , tti � , . . ' 'Sales Tax Total Due Contr•ac%�'s .Modific�ction Request - Proposal Cut - off Wall near Sta 5+60 Respo�rse Reryr�ired By Byron Williams Landmark Structures � . 1665 Harmon Road Fort Worth, TX 76177 Email : bwilliams@teamlandmark.com of FYork 2 originaily submitted 12/12/2014 Trnns�eifled By Peter J. Stahl North Texas Area Manager Signah�re � �, SJ Louis Construction of Texas is submitting the following pricing in regards to the letter sent by CDM Smith on 12/2/2014 requesting piacement of a CLSM cut off wall at approximaee station 5+60. 7his pricing inciudes the excavation, shoring and trench safety around the live 30" ductile iron pipe at station 5+6� per detail "BE" provided in the lekter. Pricing aiso includes the maintenance and dewatering of the current groundwater for ptacement and curing of the CLSM trench in addition to the labor, equipment, fuel and CLSM material required to perform this additional work. �renkdown ojProposn! Northside IV �levated Storage Tank [�ST] and Pipeline Joant Bond Installation to Separate Contractors Pipe Ifenr Descriptio�r Unifs Quanlily Unif Prlce New-1 CLSM Cut Oli' Wall at Station 5+60 EA 1 $ 10,800.00 Net Change: Requested Additio�nal Cale�dax Days: f acceptablc, plcasc providc an authorizntion sign�ture below an� return onc (�) copy to our officc. i.J. Lottis Coustrr�clion AcJlo�� S J. Louis Co��sti�uction of Texas Lttl. 520 A S. 6lh Ave�tue Mnnsfielcl, Texas 76063 (817) q77 0320 Offrce (8I7) 477•0552 Fnx Cos1 $ 10 CMR-01 Page 12/14 TINIE SHEET —ll--�S �oB� .,� 13 3�_ I �DAY �I ��N�S%I!¢/ WEATHER ��. i„�.�, �� n ��-- �� .�-. �-� 't"R D :;:� � REVISED 419ft4 C M R-01 Page 13/14 PLEASEFtLL IN EQUIPM�NT HOUF2S ON LASTDAY OF WEEK , , ' - i• �� r � ro o o � ry N M O 0 ' H OI � � lU N N � O O G � �'� �ji1• N N N N N N fA N m � Z '{� L itt': S� � C� Q L" I'; o � � a ;; ` ;u a .3" 4 tA ij �,ImpJI � Op P Qp Q a � V/ � O , O S O O O � O 1/�� • 41 fn N N IA N N N '\y n � t � �. m . a �c :� i � M � -. � � � � 3 , � a O p!. �� rs � � �� „-`,000'oo'000 L: '.-'z-;'? �0000:' o C 0 Si �noward�ar�-ara��cr�wo�o N n � r O n� o y;7 Y� m td NN �� "'� �iA -� �00 7' � � � � � o�� 4u �� i nm�� Q o��I' I' (, I' (, 0�� [ N �nnoon�r.�wr.i�Flz:uw�r�+aw�oovwwaMa��wr.�uwwaru�� C M R-01 Page 14/14 CDM Smith Memorandum To: Marshall Peterson Byron Williams Landmark From: Chad Bartruff, PE CDM Smith (TX F-3043) Date: February 18, 2016 Subject: City of Fort Worth NS-4 EST and Pipeline CMR-02 Cathodic Protection Supplement Based on review of the submitted Landmarlc 0&M manual documentation, it was previously noted that when tested, the cathodic protection system did not meet performance requirements. From on further review of this information by CorrPro, it was their conclusion that a`short' in the cathodic protection was occurring. Potential reasons for the short included metal-to-metal contact between the pipe and tunnel liner plates and/or the presence of groundwater within the tunnel. CorrPro advised that due to the `short' additional sacrificial anodes were required to protect the tunnel and pipe system as a whole. To provide a cathodic protection system that will be in compliance with the specifications due to the new conditions, a revised CorrPro design was requested. Attached to this memo are CorrPro's proposal and notes regarding CorrPro's evaluation commentary. CorrPro's proposal includes provision of the labor, materials, shipping, testing and final report associated with the supplemental cathodic protection elements. It was requested that the installation of the CorrPro provided system be performed by Landmarlc. Attached to this memo is the Landmarlc proposal for execution of this work. The cathodic protection system shall be installed in accordance with CorrPro requirements so that the system is fully protecting the installed piping/tunnel system in accordance with the specifications. If testing determines that the system is not functioning to protect the entire system, remedial activities by Landmark and CorrPro will be required. CMR-02 CMR-02Cathodc Protection Supplement 20160217.doa Page 1/10 Marshall Peterson Byron Willialns February 18, 2016 Page 2 Landmarlc shall provide and otherwise adhere to the following requirements for fulfillment of this CMR. • Extension of the cathodic protection system shall occur wholly within the limits of the temporary and permanent construction easements associated with the project, • Implementation of all applicable site safety measures including, as required, trench safety measure • All excavation spoils shall be removed from the worlc areas and grading repaired to pre-construction conditions, • Prior to initiation of the worlc associated with these proposals, Landmark shall provide the City with 72 hour notice. • Landinark shall also appropriately coordinate all utility locates within the area of excavation and construction in accordance with State of Texas and contract document requirements. • Following installation, Landmarlc shall scarify and apply seed to the disturbed areas. Further Inaintenance of the areas will not be required. • Landmarlc shall provide marlc-ups to the previously submitted record documents for review and update by CDM Smith. Completion of worlc defined in the Landmark proposal shall be amended to include the additional items and notifications identified above. cc: Farida Goderya [FWWD) Mike Hill (FWWD) Sagar Khole (CDM Smith) File: 63234- C M R-02 CMR-02CathodcProtectlonSupplement201602ll.doa Page 2/10 � � �� A�� January 27, 2016 CDM Smith 100 Throckmorton Street Suite 600 Fort Worth, TX 76102 Attn: Chad Bartruff, PE Re: Additional CP Anode Installation Proposal Northside IV EST and Pipeline City of Forth Worth, TX, Project No. 00370 Dear Mr. Bartruff: Landmark Structures 1665 Harmon Road Fort Worth, Texas 76177 £317.439.8f3II8 Phone 817.439.9001 Fax www.teainlandmark.com As requested, below is the pricing to furnish and install 20 additional anodes for the waterline/tunnel cathodic protection system. Anodes will be installed per Corrpro Change Order dated December 21, 2015. 10 anodes will be installed at Station 1+00 and 10 anodes at Station 4+78, Anodes will be installed at a depth of 5 feet and at 3 foot spacing. The new anodes will be connected to the existing system at the respective test stations. Corrpro will issue a report after completion and testing. Please issue a change order so we can proceed with this worlc. Additional Cost: Corrpro (Re-design, Materials, Testing) $5,990.00 Dowager (Anode Installation) $10,000.00 Landmark Fee (10%) $1,599.00 Total Additional Cost $17,589.00 Additional Contract Time: Contract duration will need to be adjusted accordingly to match actual delay through completion of worlc. Exclusions: - We assume full access to both sides for anode installation - No backfill density testing - No greenery restoration - No additional submittals will be provided for this work or installation. Please do not hesitate to call my office should you have any questions. Best Regards, LANDMARI<STRUCTURES I, L.P. f� ' . i f � � - Marshall Peterson Project Manager CMR-02 Page 3/10 corrpro� an AEG � 0%l�comnany Houston Office 70006 Holliste� Houston, TX 77040 713.460.6000� www.corrpro.com CHANGEORDER CUSTOMER NAME: SJ LOUIS CONSTRUCTION PROJECT NAME: NORTHSIDE IV ELEVATED STORAGETANK CLIENT CONTACT: PETE STAHL / CHAD BARTRUFF PURCHASE ORDER N0: 21332-10 CORRPRO JOB NUMBER: 340301696 DATE: 12/21/2015 CONTRACT ADIUSTMENT: PREVIOUS CONTRACT VALUE: $4,342.00 CHANGE ORDER N0: 2 REQUESTED CHANGE: S5,990.00 NEW CONTRACT AMOUNT: 510,332.00 REFERENCE NUMBER: BID q14170 THIS CHANGE ORDER NUMBER IS ISSUED TO DO THE FOLLOWING: RE-DESIGN TO ADDRESS SHORTED CASING. LUMP SUM PRICE INCLUDES LABOR, MATERIAIS, SHIPPING, TESTING AND REPORT. ITEMIZED LIST OF CHANGE ORDER ITEMS: Signature (Corrpro) MARITA GRIMBLE Print Name PROJECT MANAGER - 1: Position & Date Signature (Customer) Print Name Position & Date CMR-02 Page 4/10 � • � r �'' � �' " �' '_� "� `' "� � � ., � �;, y ;� �,o°�, q � "�' ;� ��a � Y�;a�� 1� M Z =� s �`s:.;�; �' :;°�''�a� ° � � - � Y � r� I 4 i V d I � I � � I i � I � � ' I i � tl �_tce_ � o—� - �----�--- �-- __ 3 � �� &� � k � a � ` �� z a I ai� 3_6CB_o �y � N �� g � � � �m � $q j � �.o,a s� a � � �— t �� s� � 3 � � �" IJ . � �€ �8 ' - > � � :�3 ,�-s� �e ,��,� � $ia� � ,3,�,� �_�� —L�Z i.VMH9� f o o � o � a � �((iAYd LTMd� w5 � x � L4f13AVd 1T'HdStl ;w� .�,Z? 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USE CONVENTIONAL DRY BORE, IN TxDOT RIGHT-OF-WAY, UNIESS OTHERWISE APPROVED BY w � 108377 � 12" PLUG SEE DETAIL cz-s l o•`/� TxDOT ENGINEER OR INSPECTOR.. � ��ENSE:`�2' � � � I I �� v� I O I 5. SEE BORING LOGS ON SHEEf C-12. 12"x12�� TEE WITH A� Z Z �3 TUNNEUNG SHAFT � 30" BUITERFLY VALVE PLUG SEE DEfAIL cz-s (SEE NOTE 2) � � I I � � STA 1+15.11 � N � - N 7036729.96 � '� }' �� 3a�� WATER LINE IN 12' � 30Ax30 z�12" TEE I u� Q TUNNEL 54" DIA OF T E 2301800.73 � m � '�E•••••-•��. C� � � u (MINIMUM) I I I y�P� � � (TXDOT R.O.W.) � p � = w �;� • r � � � �n �n STA 4+68.20 `* * .: ................. `•*. MPORARY EASEMENT � _ � I� y � M M � r N 7036447.41 ••:•• •• • •••�•• � M N � O O� 00 h�� 00 a a � 30-Ff PERMANENT WATER EASEMENT C. P. NAWAL � .� v� �n �n u� � a� �+ a� d' < N m� ro m m � E 2301589.32 � o � 103675 z(n romaocommmoomao N p I � o � Q (TXDOT R.O.W.) .+ ro � ��ENSE�'�' u � > > >- u� m I �/a�n� � s8 30' O o W � I � STA 4+78.41 � �. 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(n 2 � Z � fn W � fn W � f/1 � W (n W ¢� Q j Q Z Q Z O � O Q O O N J a N J Q Q J Q Q W O � 850 �'n w �n o �'n f,�" �ii w � io.. � �n rn � N �,. �ii a � %n i�n c� �ii � �ii �n � �' j i 1 _ _ _ _ _ _. \ . _ _ � 845 � � ��, � sM_2 � � _ _ _ - ___ _ ___._ _ _ ----- __ -- ; _ . . ._ . _ _ ---- -sM-t--_ . _ - - -- --_ _ _ �•� __ - - - -- ---- -- - - -- __ _ _. ._ __ _ _ _ _ - - _ _ _- - - � 840 y \ � � , � SM-3 i TUN EL 54" DIA EB FA I SEE DEfAIL �DE SEE DEfAIL �ZB -- - --. _ _._.. _. _ _ . _ . _.. _ - .. -� - -- � - � (MINMUM) SEE D AIL �Z-�� Z-� � 6 Fif I I � ' 835 - " CCP I 0��° `c � ( Y ANOTHER CONTR4CTOR �B �� _ _,� i � 7YPROJECTN0.01414 - ��-- - . ._. . _ ..._.._. . _ ._ . . _ __ .3��-. . -. -. . _..----- ._ _ . -_._ _ I I C�F' - _. . _. _. -' OE N0. 630 H'ATER LINE � �,56q, J w ? 830 LE N0. X-2 558. 5-21 4) —� e,NpSF'� >�n �" �n i 0 1 �O �� M 0 N M � W � o W � '____'..... __. ___ __ ._ .._.. __.... ._.. .._.. . .___ .._.._._."_ _ ..__._. .. .. __.._. ............ .__._.._ ._.._ _ ._._._..__. '__. _......._... _'_..._._. ._ .__'. _.. __._." ""_'____ '_'-'..." ""____-___-__._ __. _'_ .. ._ _ _ .. _.__.. _�.m.J'_ • J _ ._. ... _ ... . _ _ u . , W � xW ' 825 TXD T R.O.W. aF` aF` N M� N M� I ( l J. . . . . . . _ _ _ _ . _ ._. . _. . . _ . . _ . .... .. . . _ _ _ ". . _. ; . _ . . . _ . . . . . . . . . i S'ZO � i 1+00 2+00 3+00 4+00 5+00 6+00 � I No I DATE I DRWN I CHKD REMARKS Neo ev CP NAWAL VERIFY SCALES CDM J BY B TAL PLACIDO ��S ONE INCH ON ORIGINAL DRAWING gmith � CHKD 6Y D. VARNER 7VEp gy D. VARNER IF NOT ONE INCH ON 100 Throckmortan So-eet, suite 6a0 rr�is sHeer, nwusr FortWatlh,TX76102 NOVEMBER 2012 SCALES ACCOtt01NGLY Tel: (817) 332-8727 TBPE Firm RegisUation No. F-3043 CITY OF FORT WORTH, TEXAS NORTHSIDE IV ELEVATED STORAGE TANK (EST) AND PIPELINE 30-INCH WATER LINE PLAN AND PROFILE PROJECT No FIIE NAAIE CI SHEET No C-11 Bartruff, Chad From: Sent: To: Cc: Subject: Attachments: Chad/Pete: Marita Grimble <mgrimble@corrpro.com> Monday, December 21, 2015 2:37 PM Bartruff, Chad; Pete Stahl (PeteS@SJLouis.Com) Matthew Matlas RE: RE: Fort Worth - NS4 Elevated Storage Tank and Pipeline CHANGE ORDER - Re-deisgn 12.21.15.pdf To address the shorted casing, SJ Louis will need to install 10 anodes at 1+00 and 10 anodes at 4+78 per drawing C-2. The anodes will need to be installed at a depth of 5 feet and at 3 feet spacing. The attached change order includes materials, shipping, and a site visit for testing as well as a report. Once the signed change order is received we can ship the materials to SJ Louis. Please review and let us know if you have questions. Best regards, Marita Grimble � Project Manager � Corrpro Companies, Inc. 70006 Hollister � Houston, TX 77040 Direct: 713.351.0262 � Ce11: 713.253.8704 marimble@corrpro.com From: Marita Grimble Sent: Monday, December 21, 2015 8:58 AM To: 'Bartruff, Chad' Cc: Matthew Matlas Subject: RE: RE: Fort Worth - NS4 Elevated Storage Tanl< and Pipeline Chad, The re-design is complete. I'll work up a change order and get it to you today. Marita Grimble � Project Manager � Corrpro Companies, Inc. 7000B Hollister � Houston, TX 77040 Direct: 713.351.0262 � Ce11: 713.253.8704 marimble@corrpro.com 1 C M R-02 Page 6/10 From: Bartruff, Chad [mailto:BartruffCD@cdmsmith.com] Sent: Monday, December 14, 2015 7:50 AM To: Marita Grimble Cc: Matthew Matlas Subject: RE: RE: Fort Worth - NS4 Elevated Storage Tank and Pipeline Marita — We had discussed in the phone call that the revision of calcs could get worked into the queue for at latest the week after Thanksgiving. We are trying to close out this project and without resolution of this item we are on hold. If there is any way for you to check on this it would be appreciated. Thanks — Chad Chad D. Bartruff, P.E. CDM Smith (TX #F-3043) 100 Throckmorton Street, Suite 600 Fort Worth, TX 76102 Tel: (817) 332-8727 Fax: (817) 820-0450 bartruffcd@cdmsmith.com cdmsmith.com � Please consider the environment before printing this email. From: Marita Grimble fmailto:m�rimble@corrpro.com] Sent: Monday, December 14, 2015 6:18 AM To: Bartruff, Chad <BartruffCD@cdmsmith.com> Cc: Matthew Matlas <mmatlas@corrpro.com> Subject: RE: RE: Fort Worth - NS4 Elevated Storage Tanlc and Pipeline Chad, Unfortunately I don't have an update for you. Matt was handling this one and he is out of the office until the 215t. Could we follow up with you then? Marita Grimble � Project Manager � Corrpro Companies, Inc. 7000B Hollister � Houston, TX 77040 Direct: 713.351.0262 � Ce11: 713.253.8704 marimble@corrpro.com From: Bartruff, Chad fmailto:BartruffCD@cdmsmith.com] Sent: Sunday, December 13, 2015 12:51 PM To: Marita Grimble; Matthew Matlas Cc: Farida. Goderya (Farida.Goderva@fortworthtexas.�ov); Mil<e Hill (Mike.Hill@fortworthtexas.�ov); Williams, Byron;'Peterson, Marshall; Pete Stahl Subject: RE: RE: Fort Worth - NS4 Elevated Storage Tanlc and Pipeline Matt / Marita — I plan to call tomorrow AM, at approx. 9AM for an update regarding status of the items below. Please let me know if an alternative time is preferred. CMR-02 Page 7/10 Thanks — Chad From: Bartruff, Chad Sent: Thursday, December 03, 2015 2:16 PM To:'Marita Grimble' <m�rimble@corrpro.com>;'Matthew Matlas' <mmatlas@corrpro.com>; Farida. Goderya (Farida.Goderva@fortworthtexas.�ov) <Farida.Goderva@fortworthtexas.�ov>; Mil<e Hill (Mike.Hill@fortworthtexas.�ov) <Mike.Hill@fortworthtexas.�ov>;'Williams, Byron' <bwilliams@teamlandmark.com>; "Peterson, Marshall' <mpeterson@teamlandmark.com>;'Pete Stahl' <PeteS@SJLouis.Com> Subject: RE: RE: Fort Worth - NS4 Elevated Storage Tanl< and Pipeline Matt — Can you please advise as to status of CorrPro's review of required additional anodes ? Thanks — Chad Chad D. Bartruff, P.E. CDM Smith (TX #F-3043) 100 Throckmorton Street, Suite 600 Fort Worth, TX 76102 Tel: (817) 332-8727 Fax: (817) 820-0450 bartruffcdCa�cdmsmith.com cdmsmith.com � Please consider the environment before printing this email. From: Bartruff, Chad Sent: Friday, November 20, 2015 1:37 PM To:'Marita Grimble' <m�rimble@corrpro.com>;'Matthew Matlas' <mmatlas@corrpro.com>; Farida. Goderya (Farida.Goderva@fortworthtexas.�ov) <Farida.Goderva@fortworthtexas.�ov>; Mil<e Hill (Mike.Hill@fortworthtexas.�ov) <Mike.Hill@fortworthtexas.�ov>;'Williams, Byron' <bwilliams@teamlandmark.com>; "Peterson, Marshall' <mpeterson@teamlandmark.com>; 'Pete Stahl' <PeteS@SJLouis.Com> Subject: RE: Fort Worth - NS4 Elevated Storage Tank and Pipeline Conference Call occurred Thursday 11/19 at 1 pm as scheduled. Call participants: City — Mike Hill, Farida Goderya; Landmark — Marshall Peterson; SJ Louis — Pete Stahl; CorrPro — Matt Matlas; CDM Smith — Chad Bartruff Call Summary Notes: ➢ CDM Smith to forward as-built documents by Landmark to CorrPro (partial set attached) for CorrPro review of cathodic protection installation and development of additional anode installation requirements. Recommend CorrPro refer to their submittal drawings also. Encasement at the south bulkhead of the tunnel is not clearly shown. Landmark/SJ Louis will need to provide additional information if requested by CorrPro C M R-02 Page 8/10 ➢ CorrPro clarified the following: o See call notes below from previous discussion between CDM Smith and CorrPro. CorrPro reiterated items noted below. o Test readings less negative than -850 mV indicates lack of proper protection and readings slightly more negative indicate that the designed 20-year protective life of the cathodic protection system will not be provided. o Comparative test readings from tunnel and pipe indicate short is present as test readings at Station 1 were the same, Station 2 were within 10 mV. o Remediation of the system in-place can be accomplished with additional anodes, due to the `short', for protection of the combined tunnel/pipe system. o CorrPro will update calculations to determine what amount of additional protective anodes are needed. Expected next week once CDM Smith provides Landmark as-built information. o Installation of additional anodes will require vacuum excavation and trenching for proper placement. Anodes would not need to be placed at pipe depth due to issues with rock at lower profile. Installation can be approx 10-ft deep and 3- ft apart. ➢ Landmark raised question as to who will pay for the additional installation. All parties agreed to table discussion until CorrPro can provide summary of remediation requirements. Proposed that we reschedule as noted due to conflict - 11:00 to 12:00 General Notes: • CDM Smith (Chad Bartruff) spoke with CorrPro (Matt Matlas and Marita Grimble) at 11 AM. • CorrPro advised that test information indicates there is a short between the liner plate casing and the pipe. (upon check of project documents, spacers were to be installed with 1/2" rubber pad). CorrPro advised that groundwater could impact system isolation. • CorrPro advised that likely remediation method for a`short' condition could possibly be additional anode protection for the combined pipe and liner plate system. • Secondary conference call to be scheduled with City, Landmark, CorrPro and CDM Smith. Invitation of others to be coordinated by the individual invitees. Conference call regarding cathodic protection system for the NS4 pipeline and tanlc. CONF CALL• Dial-In —1-719-457-1414 Participant Code — 950791 Submitted with the last 0&M Manual version was cathodic protection test report for the pipeline and casing. Based on the report, CorrPro stated that inadequate protection is in place CMR-02 Page 9/10 for the pipeline/casing. Discussion of current status of system and testing results is needed and, as possible, development of plan forward. Please advise as to your availability. Thanks - Chad Chad D. Bartruff, P.E. CDM Smith (TX #F-3043) 100 Throckmorton Street, Suite 600 Fort Worth, TX 76102 Tel: (817) 332-8727 Fax: (817) 820-0450 bartruffcd@cdmsmith.com cdmsmith.com � Please consider the environment before printing this email. Aegion Disclaimer This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you are not the named addressee you should not disseminate, distribute, retain, or copy this e-mail or any attachments. [f you have received this email in error please delete and notify the sender. Ae�ion CMR-02 Page 10/10