Loading...
The URL can be used to link to this page
Your browser does not support the video tag.
Home
My WebLink
About
Contract 21476-CO3
t DISTRIBIrrION:. o %RITE-FILE CITY OF FORT WORTH "# y CANARY-CONSTRUCTION FILE CT�SE�� 5� PINK-PROJECT MANAGER CHANGE ORDER REQUEST CON PAc ._Nu.x,' 4r7C -60 3 GOLDENROD-CONTRACTOR CHANGE ORDER NO. DATE D.O.E.NO. PROJECT NO. 3 PW77-0607705 0 0&PW77-060770500030 PROJECT DESCRIPTION: North and South Holly Water Treatment Plants CITY SECRETARY CONTRACT Backwash Facilities Modifications and Chlorine and Ammonia Facilities Rehabilitation NO. 21 ORIGINAL CONTRACT AMOUNT..........................................$ 7.747.000.00 EXTRAS TO DATE...............................................$ 73.856.61 CREDITS TO DATE..............................................$ 0.00 CONTRACTCOST TO DATE..............................................................................................................................................................$ 7.820,856.61 AMOUNT OF PROPOSED CHANGE ORDER....................................................................................................................................$ 47,913.35 REVISEDCONTRACT AMOUNT.......................................................................................................................................................$ 7.868.769.% TOTALFUNDS APPROVED BY COUNCIL.......................................................................................................................................$ 7.979.410.00 IN ACCORDANCE WITH THIS CHANGE ORDER,THE CONTRACTOR SHALL:Modify and change the contract as shown below to provide a complete, functional and operational laboratory.These changes are listed below:Further descriptions and information is shown on Attachment#1 along with other attached material: PCM-004:North&South Holly Backflow Preventors and Miscellaneous Piping Modifications------------------------------------------$23,037.42 PCM-004A:Miscellaneous Piping Modifications ------------------------------------------------------------------------------------------------$ 1,375.93 CMR-004:North Holly Sedimentation Basin Concrete overlay Demolition------------------------------------------------------------------$23,500.00 THE TOTAL COST FOR CHANGE ORDER NUMBER#3 IS $47,913.35 Cost breakdown by Project Number is PW77-060770500020 $ 5,059.51 PW77-060770500030 $42,853.84 OFFICIAL RECORD The contract time of completion is February 5, 1997 CITY SECRETARY FT.WORTH,TX It is understood and agreed that the acceptance of this Change Order by the contractor constitutes an accord and satisfaction and represents payment in full(hoth in time and money)for all costs arising out of,or incidental to,the Change Order. ORIGINAL CONTRACT TIME ADDITIONAL APPROVED TIME TO DATE APPROVED CONTRACT TIME TO DATE ADDITIONAL TIME FOR THIS CHANGE ORDER 450 Calendar Days None 450 Calendar Days None CONTRACTOR A� / DATE FIELD ENGINEER �j AN a DATE Cajun n ctors,Inc. G.E.Gay,P.E.Freese&Nichols,Inc MAN E ON T.S DATE DIRECTO ANAGINEPT. DATE / Davi .Townsend,P ,Facilities ngineer / i�-r r J�7lCG� 11/71rj,4 D[!6P;lt9�'$N ACTING DEPT. DATE CITY ATTORNEY DATE Lee C.Bradley,Jr.,/q,Water Director CrfY MANAGER DATE / COUNCIL ACTION OF REQUIRED): MSC C—)5;" DATE /] �APPROVFD 0 1 ❑ DISAPPROVED O OTHER .11/76 RECEIVED JUN 162015 City of Fort Worth, Texas Mayor and Council Communication DATEREFERENCE NiTMBER - LOG NAME PAGE 10/15/96 **C-15706 60CAJUN 1 of 2 SUBJECT CHANGE ORDER NO. 3, FOR THE NORTH AND SOUTH HOLLY WATER TREATMENT PLANTS BACKWASH FACILITIES MODIFICATIONS AND CHLORINE AND AMMONIA REHABILITATION, CAJUN CONTRACTORS, INC. RECOMMENDATION: It is recommended that the City Council authorize Change Order No. 3 in the amount of $47,913.35 to City Secretary Contract No. 21476 with Cajun Contractors, Inc., for the construction of the North and South Holly Water Treatment Plants Backwash Facilities Modifications and Chlorine and Ammonia Rehabilitation, revising the total contract cost to $7,868,769.96. DISCUSSION: On October 10, 1995, (M&C C-15064), the City Council authorized the award of a contract to Cajun Contractors, Inc., for the construction of the North and South Holly Water Treatment Plants Backwash Facilities Modifications and Chlorine and Ammonia Rehabilitation. The project consists of the installation of a backwash clarifier and pump station at the South Holly Water Treatment Plant, the renovation of the Chlorine Buildings along with the installation of a new chemical storage area at both Holly Water Treatment Plants, and the installation of a new caustic and fluoride facilities at both Holly Water Treatment Plants. The following work is to be conducted as part of this change order: PCM-004: North and South Holly Backflow Preventors & Miscellaneous Piping Four backflow preventors and associated piping are necessary to meet the requirements of the new City Backflow/Cross Connection Ordinance. An additional fire hydrant is required to meet the Building/Fire Code. Additional water supply lines are required to provide a second water feed to chlorine and ammonia gas scrubbers and equipment and to provide an adequate water supply for the fire sprinkler system in the chlorine buildings. Several additional hose bibs were requested by plant staff for operational and maintenance purposes. The Contractor has provided a cost of $23,037.42 for this work. PCM -004A: Miscellaneous Piping Modifications Three 6-inch water valves will be installed at the North and South Holly chemical storage areas water supply piping to allow the chemical storage area to be isolated while maintaining water supply to the chlorine building. The Contractor has provided a cost of $1 ,375.93 to do this work. CMR-004: North Holly Sedimentation Basin Concrete Overlay Demolition The contract reflected previous information indicating that the abandoned North Holly Sedimentation Basin #1 upper deck (aeration basin) had a thickness of approximately 6- Printed on Regded Paper City of Fort Worth Texas Mayor and Council Communication DATEREFERENCE NUMBER LOt; NAME PAGE 10/15/96 **C-15706 60CAJUNF 2 of 2 SUBJECT CHANGE ORDER NO. 3, FOR THE NORTH AND SOUTH HOLLY WATER TREATMENT PLANTS BACKWASH FACILITIES MODIFICATIONS AND CHLORINE AND AMMONIA REHABILITATION, CAJUN CONTRACTORS, INC. inches. The actual thickness was found to be in excess of 12 inches with a concrete overlay of 6-inches on top of the 6-inch upper deck. The contractor was required to remove the concrete overlay to continue the project. The Contractor has provided a cost of 523,500.00 for this work. The net effect of the proposed change order is as follows: Original Contract Cost $7,747,000.00 Change Orders Nos 1&2 $ 73,856.61 Proposed Change Order No. 3 $ 47,913.35 Revised Contract Cost $7,868,769.96 The construction manager, Freese & Nichols, Inc., and the staff engineers of the Water Department have reviewed the proposed changes and their costs and found them reasonable. FISCAL INFORMATION/CERTIFICATION: The Director of Fiscal Services certifies that funds are available in the current capital budget, as appropriated, of the Commercial Paper Fund-Water. MG:m Submitted for City Manager's FUND ACCOUNT CENTER AMOUNT CITY SECRETARY Office by: (to) Mike Groomer 6140 Originating Department Head: CITY tp!L Lee Bradley,Jr. 8207 (from) PW77 541300 060770500020 $47,913.35 nr,T 15 1996 For Additional Information + Contact: e.aB ' Lee Bradle Jr. 8207 city S�r�axT�f tike Y. %itp of Flea Worth,l Ne Printed on Recycled Paper y CHANGE OR EXTRA WORK ORDER PROJECT: N&S Holly Chlorine/Ammonia/Backwash Facilities OWNER: City of Fort Worth PROJECT NO. PW770607705-00020 & 30 CONTRACTOR: Cajun Contractors, Inc. PROJECT NO. 95028 ENGINEER: Freese and Nichols, Inc. PROJECT NO. FTW95312 CHANGE ORDER NO. : Three (3) DATE: September 17, 1996 CHANGE OR EXTRA WORK TO BE PERFORMED In accordance with previous discussions and negotiations, su_-rsnarized below are the changes or extra work to be performed in the above referenced project. REFERENCE PC24-004 3a) Add backflow preventers, fire hydrants, and redundant water supply piping to the chlorine buildings . Additional backflow preventers to comply with the new City Backflow Prevention Ordinance were found to ue required during the Development Group' s Code review. Additional fire hydrants for enhanced fire protection and yard piping for operational flexibility were requested by the plant staff. The cost of this PCM is $ 23, 037 . 42 . The costs break down to be Project P_ - $5, 059. 51, Project B - $ 12, 019. 87, and Project C - S 5, 958 . 04 . No additional Contract. Time has been recuested. ADD $23, 037 . 42 REFERENCE PO4-004A 3b) Add one 6" valve at the South Holy (Project B) chemical storage area water supply piping to allow the chemical storage area to be isolated while maintaining water supply to the chlorine building. Add two 6" valves at the North Holly (Prosect C) concrete chemical trench water supply piping to allow the chemical storage area to be isolated while maintaining water supply to the chlorine building. The cost for this PCM is $ 1, 375. 93. The costs break down to be Project B - $ 454 . 06 and Project C - $ 921 . 87 . No additional Contract Time has been requested. ADD $1, 375. 93 REFERENCE CMR-004 2c) During demolition of the existing North Holly abandoned sedimentation basin uDDer deck structure, it was determined that a six inch concrete overlay had been placed on the deck. Our research found this overlay was installed was in the 1930' s to seal the slab to prevent short circuiting of the treatment process utilized at that time. No Contract Drawings of the overlay could be found. The cost to remove this overlay is $ 23, 500. 00. No additional Contract Time has been requested. ADD $23, 500.00 SEP 20 ' 96 8: 38 FROM FREESE AND NICHOLS rHuc . nr�� E Change Order #3 September 17, 1996 It is understood and agreed that the acceptance of this Change Order by the contractor constitutes an accord and satisfaction and represents payment ir. tuil (both time and money) for all costs arising out of or incidental to, the above described change order. Original Contract Amount S 7,747,000.00 Previous Contract i4odifications (C.O. #1) $ 64c348.57 Previous Contract Modifications (C.O. #2) $ 9,508.04 Present Contract Amount S 7,820, 856.61 `et Increase in Contract A�-r_ou�nt S 47, 91-3.35 Revised Contract Amount 6 7, 868, 769. 96 Original Contract Tine _ FEBRUARY 5, 1997 Previous Change in Cont-ract 'rime of Final Completion (C.O. .01) 0 DAYS (C.O. #2) 0 DAYS Present Change in Contract Time For Final Completion (C.O. #3) 0 DAYS Net Increase in Contract Time of Final Co�:►nletion 0 DAYS Revised Contract Time for Final Completion FEBRUARY S, 1997 Recommended by Approved by FRi EESE AUD NICROLS, !NC. CAj-u-N CONiRACTORS, INC. BY 1� ��' ��1�/s� By (/•� 9�z3�G Date Date Approved by CIT: ORT WORTH TE By Date Attachments: P_opased Contract Modification-004 Proposed Contract Modification-004a I Contract Modification Request-004 cc ** TOTAL PAGE . 001 ** INTER-OFFICE CORRESPONDENCE TO: Ted Gay, Freese &Nichols, Inc. . FROM: David Townsend, Facilities Engineer Water Department DATE: May 30, 1996 SUBJECT: PCM-004: Backflow Preventors and Misc. Piping Modifications North and South Holly Water Treatment Plant Backwash Facilities Modification and Chlorine and Ammonia Rehabilitation Project Nos. PW77-060770500020 & PW77-060770500030 This office has reviewed your correspondence dated April 21, 1996 on the proposed contract modification (PCM-004 ) concerning the installation of backflow preventors, fire hydrants, additional water supply lines to the chlorine buildings (at both Holly plants), and the installation of water hose bibs at several locations.. The backflow preventors are required to meet the new Backflow Prevention Ordinance. The fire hydrants are required to meet the Building/Fire Code. The additional eater supply lines are required to provide a second water feed to chlorine/ammonia equipment/scrubbers and to provide adequate supply of water for the fire sprinkler system in the chlorine buildings. The additional hose bibs were requested by plant staff for operational & maintenance purposes. The Water Department agrees with your recommendation that the contractor price proposal of $23,037.42 should be accepted as the cost provided is fair and reasonable. "Iherefore, this office will recommend to the City Council (and/or the City Manager's Office), the approval and acceptance of this additional cost in the form of a change order to be prepared and submitted by you to this office. For accounting purposes, this PCM will be paid as follows: $5,059.51 from PW77-060770500020; $17,977.91 form PW77-060770500030. Davi R. Townsend, P.E. cc: Frank Crumb Files Fr�e A Simon C Freese,P.E. 19041990 Marvin C.Nichols,P.E. 18961%9 AND Nichols,INC. CONSULTING ENGINEERS April 21,1996 Mr. David Townsend,P.E. Facilities Design and Construction City of Fort Worth Water Department P.O. Box 870 Fort Korth,Texas 76102 Re: North and South liollv Water 7 reatmcnt Mant Backwash Facilities Modifications and Chlorine and Ammonia Facilities Rehabilitation PIV77-060770500020 and PIN 77-060770500030 PCM-004 North and South Ifolly Backflow Preventers and Nlisc Piping Modifications Dear Mr. Townsend: Transmitted herewith Please find a cop), of Cajun's April 1, 1996, price Proposal for the referenced PCM. This PCNI adds backflow pret•enters, fire hydrants, and redundant water supply Piping to the chlorine buildings. During building permit re x iew, the backflo�\ prevention department required additional backflo�r prevention to comply with the new Cite Backflow Prevention Ordinance. They also recommended additional fire hydrants be provided. The plant has requested redundant water supply piping to the North and South Holly Chlorine Buildings be provided to allow the chemical scrubber equipment remain operational should the dedicated supply piping need to be taken out of sen-ice. We have reviewed the price proposal and recommend the City authorize this additional worl, and issue a Change Order in the amount of$ 23,037.42. The costs break down to be Project A - $ 5,059.51, Project B - $ 12,019.87, and Project C - 5 5,958.04. No additional Contract Time has been requested. Please advise if the Water Department desires this PCM to be incorporated into a Change Order. Sincerely, FREES/E ANND/NICHOIS, INC. G. E.Gay,P.E. xc: Charly Angadicheril Randy Romack Coy Veach file FTW95312.4.41.006/4.43.001 TELEPHORFBW$S*)QWM ADC$111MR&lAQmR(d #UaVQWE 200 FORT WORTH,TEXAS 76109-4895 • METRO 817-429-1900 • FAX 817-735-7491 t. CAJUN CONTRACTON BATON ROUGE•DALLAS•HOUSTON April 1 , 1996 Freese & Nichols , Inc . 4055 International Plaza, Suite 200 Fort Worth, Texas 76109-4895 Attention : Ted Gay RE : North and South Holly Water Treatment Plants City of Fort Worth , Texas PCM-004 Dear Mr . Gay : Please find attached Cajun' s cost proposal for PCM-0%. You will also find tabulation work sheets for direct labor , materials , and equipment . Please note the items numbers are indexed to your PCM No . 4 dated 1/16/96 . If you have any questions , please do not Hesitate to call . Sincerely , s - CAJUN CONTRACTORS , INC . Chris Thompson Project Manager CCT File 1 . 21(d) ( 95028) Field HOME OFFICE: DALLAS OFFICE: HOUSTON OFFICE: FREEPORT OFFICE: LAKE CHARLES OFFICE: Post Office Box 104 Post Office Box 59367 Post Office Box 890809 Post Office Box 1058 Post Office Box 1487 Baton Rouge,Louisiana 70821.0104 Dallas,Texas 75229 Houston,Texas 77289.0809 Clute,Texas 77531-1058 Lake Charles,Louisiana 70602.1487 (504)753-5857 (214)323.9333 (713)479.5554 (409)265-0032 (318)625-3773 FAX(504)751.9777 FAX(214)323-9555 FAX(713)479-0309 FAX(409)265.6751 FAX(318)625.3817 NORTH AND SOUTH HOLLY WATER TREATMENT PLANTS P M-004-MISCELLANEOUS MECHANICAL MODIFICATIONS SUMMARY OF COSTS TOTAL COST FOR PCM-004: $23,037.42 DIRECT I LABOR 10%SUB 1NTRJ SUB 1 2.096 1ITEMI DESCRIPTION SUBS IMATER IAIj EQUIP.I LABOR I BURDEN I FEE FEE I TOTAL jBONDJINTOTAL BACKWASH FACILITIES 1 Hose Bibbs 0 ea) 0.00 231.50 0.00 10.00 5.20 0.0037.01 28371 5.67 289.38 2 Relocate 4'backflow preventer 0.00 0.00 0.00 0.00 00.00 OA __O 0.00 0.00 0.00 0_.00 3 Backflow reventervault 0.00 2,075.00 U 601.00 312.52 0.00 448.28 3,436.80 68.74 3,50553 4 Fire hydrant 0.00 1,415.00 I/A 488.00 253.76 0.00 323.51 2,480.27 49.61 2,529.88 0.00 0.00 0.00 0.00 0.00 0.00 CHLORINE/AMMONIA FACILITIES 000 0.00 0.00 0.00 0.00 0.00 1 Hose Bibbs(9 ea) 0.00 416.70 0.00 20.001 10.40 0.00 67.07 514.17 10.28 5224.45 2 Backflow Preventers 0.00 5,467.00 0.00 330.00 171.60 0.00 895.29 6,863.89 137.28 7,001.17 3 Redundant water su�y I or CL2) 0.00 1,289.00 V'' 358.00 166.16 0.00 274.97 2,106.13 42.16 2.150,K- 4 Redundant water suppiy(South CL2 0.00 3,990.68 I/ 1,238.50 644.02 0.00 880.98 6,754.18 135.08 6,889.26 5 Chlorine Building Hose Bibbs 0.00 110.50 0.00 1 C 00 5.20 000 18.861144.56 2.89 1 47 45j 6 Ircluded In i e nc 4 -- - -- - - ---- -�--- - _- 0 CO O=CJ�t 0-00 --+ -- --- - -- ---- -- - - ...----I - - - - ---- - - - --- G0, CX. 0.G'I 0.00 0�0 000 ---t --- - -1 3 3. 0 CO] 000, 0 a0 000' 0 00 j --- --- .-- G: .ac D o c� oc a Cool C DO ---1-- - - C;r0 l 0 CID - OL OD Obi G U•., 1 7A- _ _ 0.00 --- - - - -- - - --- I$14,99-5-38 I- -$O0 cL�? 55°U1 $' 0E3E6 -- Cc945.96L��567G $4517iI$23,G3?4cISJG01 i DIRECT FIELD COST ESTIMATE UNIT TOTAL DESCRIPTION QTY UNIT MATERIAL LABOR MATERIAL _LABOR ADDITIONAL CONCRETE/REBAR: _ 10'DIAMETER SLAB 3 CY 8'DIAMETER SLAB (2 CY) NET INCREASE 1 CY 1, CY 260.00 1/ 260.00 I/ REBAR 1 LS I/ I/ 1/ I/A LEAN CONCRETE ENCASEMENT 1 CY 200.00 11A 200.00 I/ ADDITIONAL PIPING: 6'F X F SPOOL 1'-6'LL 2 EA 140.00 60.001. 280.00 120.00 6' MJ 90 BENDS 2 EA 80.001 30.001 160.00 60.00 6'FLANGED 90 BENDS 2 EA 85.00 60.00 170.00 120.00 REUSE EXISTING MANHOLE CLEAN - 2M*4HRS 8 MH I _ i _8.001F 0.00 64.00 CORE DRILL HOLES 3 EA 150.00 450.00 0.00 --------- - - - -- ----� - -------{ - ��- - - -� TRANSPORT TO INSTALL LOCATION i _ T - _ 0.001_ 0.00 I LOADER 8 HRS 70.00! �i 560.00 0.00_1 --------- ----- -- OPERATOR -- 8 MH-- - -- - - ! 10.50 ; -- -- 0_00 84.00 LABOR TO SPOT - 2M*8HRS 16 MH + 8.00 � 0.00 128.00 , HADD COST FOR LARGER COVER _ AND SCREENS/FRAMES 1- 1 LS_ 895.00 25-.0017 895.00 2 .00 -- ---- - - J-- --I r- -- -1 - -- ---1 CREDIT FOR 6 DIAMETER IJIANHUL.F - -- -- T_ --- -- -- ---- CRED ---- ----- ------ -- IT FOR MATEHIAL --� -6*VF-- ----15000 --- -- ��----(900.00) 0.00 . _ i TO1 ALS I;--2,075.001 601.00 ITEM: BACKFLOW PREVENTER VAULTS JOB: N&S HOLLY PAGE: 1/1 DIRECT FIELD COST ESTIMATE UNIT TOTAL DESCRIPTION QTY UNIT MATERIAL LABOR MATERIAL LABOR EXCAVATE: BACKHOE/OPERATOR 4 HRS 12.50 10.00 50.00 40.00 PIPING: 6" MJ SOLID SLEEVE 1 EA 55 30 55.00 30.00 6' MJ TEE 1 EA 88.00 40.00 88.00 40,00 0 MJ GATE VALVE 1 EA 265.00 30.00 265.00 _ 30.00 VALVE BOX 1 EA 32.00 20.00 32.00 20.00 FIRE HYDRANT 1 EA 765.00 80.00 765.00 80.00 BACKHOE TO ASSIST/OPERATORI_ 4 HRS 12.50 10.00 50.00 40.00 PIPE BLOCKING _ - 1 CY 60.U040.00 60,00 ; 40.001 DACIFILL: M*8HRS -- -- 16 MH -- - -- -- 8.00 ; 0.00 _ 128.00 B2ACKHOE TO ASSIST/OPERATOR I 4 MH _ 1250 10.00 r 50.00 40.00 ;r lj 0.00 0.00 � ----------�--- ------- - -- - --�----- 0.00 _ 0,00 4--- - - ------ ----- ----------+ -a� 0,001 I 0.00 --- --- --- - - --- -- - I - -- =�� - 0.00 ! I I - - --� 0.001 0.00 TOTALS _1,415.00177488 00 ITEM: BACKWASH FIRE HYDRANT JOB: N&S HOLLY PAGE NC 1/1 DIRECT FIELD COST ESTIMATE UNIT TOTS DESCRIPTION QTY UNIT I MATERIAL LABOR MATERIAL_LABOR BULK STORAGE NORTH ADD 4' BACKFLOW PREVENTER 4' BACKFLOW PREVENTER 1 EA 1,995.50 15.00 1,995.50 15.00 6'X 4' PVC REDUCERS 2 EA 50.00 15.00 100.00 30.00 4' PVC FLANGE 2 EA 35.00 20.00 70.00 40.00 SUPPORTS 2 EA 100.00 25.00 200.00 50.00 CHLORINE BUILDING NORTH ADD V BACKFLOW PREVENTER 1 EA 318.00 10.00 318.00 10.00 SUPPORTS 2 EA 25.00 10.00 50.00 20.00 BULK STORAGE SOUTH ADD 4' BACKFLOW PREVENTER ___ 4' BACKFLOW PREVENTER _ _1 I EA I 1,995.50 15.00 1,995.501 15.00 , 6" X 4' PVC REDUCERS _ 2 EA i _ 50.00! 15.00 __100.00 30.00 4' PVC FLANGE1 A 1 35.00 20.0_0 70.00 40.00 SUPPORTS 2 FA 100.00 7 .00 --- _ - � 1 200.00 50,00 (CHLORINE BUILDING SOUTH ADD 1' BACKFLOW PREVENTER -� � 318.001 -~ _ _ - I_ 1 i EA i 10.00 I 318.00 10.00 . - -- - - -- -- -- -- --- - - - -- --- SUPPORTS l 2�F�1 25.00 10.00�I 50.00 20.00 &00 - 0.00 ------0.00 0.00 ------------- -- ---- --- -i - --� -- -L -- - - - + --- - -- -00 0.0 TOTALS 5,467.00 330.00 ITEM: BACKFLOW PREVENTERS JOB N&S HOLLY PAGE: 1/1 DIRECT FIELD COST ESTIMATE UNIT TOTAL DESCRIPTION QTY UNIT MATERIAL LABOR MATERIAL LABOR 6"TAPPING VALVE 1 EA 650.00 50.00 650.00 50.00 VALVE BOX 1 EA 32.00 20.00 32.00 20.00 6"PVC PIPE 40 LF 3.25 1.20 130.00 48.00 6" MJ 90 BEND 1 EA 80.00 30.00 80.00 30.00 6" MJ X F WALL PIPE 2' 0" LL _ 1 EA 165.00 40.00 165.00 40.00 6"PVC SOCKET 90 BEND 1 EA 25.00 10.00 25.00 10.00 6"PVC SOCKET TEE _1 EA 35.00 10.001 35.00 10.00 , EXCAVATION W/BACKHOE &OPERATOR 1 8 HRS 12,5011 10.001 100.00 80.001 BEDDING - j 8 CY9.00 3.50�1 72.00 28.00 BACKFILL - -------- - 12 CY ----- 3501 .00 42.001 E ----------------- --+- �--- --i--- i-- 0.00 _-_0.00 0.00 _0.00 TOTALS j1 _1,289.00 358.00 ITEM: REDUNDANT WATER (NORTH CL?) JOB: N&S HOLLY PAGE: 1/1 6 • DIRECT FIELD COST ESTIMATE UNIT TOTAL DESCRIPTION QTY UNIT MATERIAL LABOR MATERIAL LABOR CREDIT FROM TAP TO 90 BEND: 6' MJ 90 BENDS 4 EA 80.00 30.00 (320.00) (120.00) 6' PVC PIPE 130 1 LF 3.25 1.20 (422.50) (156.00) EXCAVATION BACKHOE/OPERATOR 8 HRS 12.50 10.00 100.00 80.00 BEDDING 24 ICY 9.00 3.50 (216.00) (84.00) BACKFILL 22 CY 3.50 0.00 7.00 RELOCATE LINE FROM TAP TO 90 BEND 6'90 BEND 1 EA 80.00 30.00 80.00 30.00 6' MJ TEE 2 EA 88.00 40.00 176.00 80.00 6' PVC PIPE _ _ 80 LF 3.25 1.20 260.00 96.0_0 6' MJ GATE VALVE 1 JEA ! 265.00 30.00 265.00 30.001 VALVE BOX _ _ �_ 1 EA 32.00 20.00 32.00 20.00 FIRE HYDRANT _ ! 1 lEA I 765.00 80.001 765.00 80.00, BACKHOE TO ASSIST/OPERATOR _ 4 HRS i 12.50 _0 50.00 40.00 PIPE BLOCKING 1 CY i 60.00 40 OOO i 60.001 40.00 EXCAVATION (BACKHOE/OPERATOR) 8 HRS 12.50 10.001 100.00 80.00 ' BEDDING_ 15 CY f _9.00 3.50 135.00 52.50f BACKFILL - 14 CY 3.50 0.00 49.001 WATER LINE FROM VALVE TO CL2 BLDG. j _ 6' MJ GATE VALVE _ _ _ _ _ 1 9-1_265.00_ _ 00. 30. 265.00 30.00 6' PVC PIPE _ 130 LF 3.25 1.20 422.50 156.0_0 i EXCAVATION BACKHOE/OPERATOR__ 8 HRS 1-_ 12.5010.00 100.001 80.00_; BEDDING 24 CY i _ 9.00 _ 3.501 216.001 84.00 BACKFILL 22 CYC 3.501 0.001 77.00 ' 6' MJ 90 BEND _ _1 EA 80.001 30.001 80.0_0 j 30.00 6' F X PE WALL SPOOL 3'-0'LL _ _1 EA f - 160.00 60.0000 11660.0000 60.001 6' FLANGED 90 BEND_ �- 2 EA _85.00 60.00 I�170.001 -120.00 6' F X F SPOOL 4'-0' --_. _ -2 EA fi ---150.001 -6-0--.0-611--30-0.0I 0 120.00 CORE LINK SEAL DRILL PIPE CHASE _ _ ; I -1 0.00 1 1 40 15 40.00 -15.00 MODIFY 80&4'WATER LINES: REMOVE PIPE: BACKHOE/OPERATOR 4 HRS 12.50 10.00 50.00 40.00 LABOR - 2M*4HRS 8 MH 8.00 0.00 64.00 DISPOSAL FEES 1 EA 15.00 15.00 0.00 8' GATE VALVE 1 EA 1 345.00 35.00 345.00 35.00 VALVE BOX 1 EA 32.00 35.00 20.00 35.00 8' MJ TEE 1 EA 140.00 45.00 140.00 45.00 8'X 4' MJ REDUCER 1 EA 85.00 20.00 65.00 20.00 4' MJ 45 BEND 1 JEA 52.00 20.001 52.00 20.00 4' MJ GATE VALVE 1 EA 225.00 28.00 225.00 28.00 VALVE BOX 1 EA 32.00 35.00 20.00 35.00 4' MJ CL 51 DUCTILE IRON PIPE 20 LF 6.23 1.20 124.60 24.00 4' MEGALUG RESTRAINERS 8 EA 18.26 5.001 146.08 40.00 TOTALS3,990.68 1,238.50 rrFM• RFnt INnANT WATER reni ITI-I ri 0l .inR• AIRc uni i v PArrP• i H FileFt4/y� 1/4,41/. pog n PROPOSED CONTRACT MODIFICATION PROJECT:.��'� y- �� � {o jj k,4hR 571 A� 1£N 1, i >-'4PROJECT NUMBER OWNER: C'.i5r o f F�.�, lRl�t�tli_ YW-N-0ko 770 32vo 44►-8o CONTRACTOR: Q_ _ ENGINEER: Fre se and Nichols Inc FTLJ��3/a PCM DESCRIPTION: fd46k&Am bf . 417L>�, w VL o%sd. PCM NO. NOTIFICATION TO CONTRACTOR: The Owner proposes to make the additions, modifications or deletions to the Work described in the Contract Documents as shown in Attachment "A" . We request that you take the following action within 10 calendar days: D Notify us that you concur that this change does not require a change in f�n1ract time or amount . A Field Order will be issued. a- Submit a Price Proposal with detailed cost breakdown of labor, materials, equipment , all other cost related to this change and a revised schedule for performing the described change. D Proceed with the change. Payment will be made at the unit price bid. D Proceed with the change under the time and materials provisions of the Contract . Authorization to proceed with changes must be approved by Field Order or Change Order in accordance with the Contract Documents. By: (--�. � � Date: � CONTRACTOR'S RESPONSE: We respond to your request as follows: 0 We concur that this is a no cost or time change . Issue Field Order. D We submit the attached Price Proposal with detailed cost breakdown and revised schedule for performing the described change. D We are proceeding with the change at the unit price bid. D We are proceeding with the change under the time and materials provisions of the Contract. By: Date: ACTION TAKEN: 0 Proposed Contract Modification rejected. Contractor is hereby notified NOT to proceed: By: Date: 0 Field Order issued: No. Date: By: 0 Change Order issued: No. Date: By: r + < RossyFile FM5312 ISf / oy Pntta�awwN LETTER OF/TRANSMITITAL TO: A(Z.Z � c DATE: PROJECT NO: ATTENTION: OWNER:PW77-060770500(1 20&30 OWNER:City of Fort Worth F/N: FTW95312 Project:North & South Holly Water Treatment Plant Backwash & Chlorine & Ammonia Facilities We are sending you 2"'Attached ❑ Under Separate Cover VIA the following items: ❑ Daily Construction Reports No. ❑ Plans ❑ Specifications ❑ RFI No. VP MR No. ❑ Addendum No. ❑ memo.No. CM No. _ ❑ Change Order No. ❑ Field Order No. ❑ Pay Req. ❑ Submittal No. ❑ Other Copies Ref.No. Description o These are transmitted for your: ❑ Use ❑ Review & Comment ❑ Information ❑ Approval ❑ Distribution to Parties 9--"-Response ❑ Record ❑ Other Remarks: Copies to: 1Route To: Q T By: Telephone 817/735-7300 Fax 817/735-7491 Metro 817/429-1900 4055 International Plaza, Suite 200, Fort Worth, TX 76109-4895 JAN-15-1996 14:26 VNEESE & NICHOLS 617 735 7492 P.02/09 ATTACHMENT A BACKWASH FACILITIES_MODIFICATIONS 1. HOSE BIBBS Replace section 2.01 I), Hose Faucet, of specification Section 15136, WSCELLANEOUS VALVES with the following: "HOSE BIBBS: Hose bibbs shall be freeze-proof vacuum breaker/backflow preventer type with 3/4" standard hose threads. Bibbs shall allow manual draining. Bibbs shall be constructed of brass and stainless steel, with plain brass finish. Bibbs shall be equipped with standard wheel handles. Bibbs shall be Nidel Model 37HD or approved equal." 2. POLYMER BUILDING PIPING ISOMETRIC (sheet CF-3) Relocate the 4" backflow preventer from upstream of the eyewash branch to downstream of the branch, upstream of the polymer systems. Reduce to 2" diameter PVC pipe downstream of the backflow preventer. 3. BACKFLOW PREVENTER VAULT (sheet M-5) Replace the backflow prevention vault detail with the detail shown in Attachment 1. 4. FIRE HYDRANT Install 6" tee, isolation gate valve with stem extension, and fire hydrant at South Holly chemical feed area as shown on Attachments 2 & 5. lft*95312j t:\pcm-d.kjz pop A-1 JAN-15-1996 14:26 FREESE & NICHOLS 817 735 7492 P.03i09 CHLORINE AND AMMONIA FACILITIES RE ABILITATION 1. HOSE BIBBS Replace section 2.01 F, Hose Faucet, of specification Section 15136, MISCELLANEOUS VALVES with the following: "HOSE BIBBS: Hose bibbs shall be freeze-proof vacuum breaker/backflow preventer type with 3/4" standard hose threads. Bibbs shall allow manual draining. Bibbs shall be constructed of brass and stainless steel, with plain brass finish. Bibbs shall be equipped with standard wheel handles. Bibbs shall be Nidel Model 37HD or approved equal." 2. BACKFLOW PREVENTTERS A, Replace section 2.01 L, BACKFLOW PREVENTERS, of specification Section 15136, MISCELLANEOUS VALVES with the following: BACKFLOW FR VE3NTERS Backflow preventers shall be of the reduced pressure principle type. Each backflow preventer assembly shall be a complete unit including two independently acting check valves, one automatic pressure differential relief valve, two shutoff valves and four test cocks arranged so that a test of each check valve can be made. When flow is less than or equal to the rated flow, the head loss across the entire unit shall not exceed the values listed below: Model Size Rated Flow (ge) Max.Head.Loss (psi) 1" 50 12.5 4" 500 14.0 All internal parts of the check valves must be removable or replaceable without removal of the assembly from the line. For valves smaller than 2", ends shall be screwed. For valves 2" and larger, ends shall be flanged. All materials shall be corrosion resistant. The assembly shall be type RP as manufactured by Cla-Val Company, or approved equal. Provide all necessary pipe supports and hangers. [fnw953121 r\pcm-4.* page A-2 JAN-15-1996 14:27 FREESE & NICHOLS 817 735 7492 P.04i09 B. Furnish and install backflow preventers according to the schedule listed below: Location IDescrint� Sim North Holly 1. Install backflow preventer on 6-P\'V-PVC line just prior to 4" ammonia scrubber connection. 2. Install wall mounted backflow preventer in evaporator room 1" on 1" water line feeding chlorine evaporators. South Holly 1. Install backflow preventer on 6-PW-PVC line after tee and 4" just prior to ammonia scrubber connection. 2. Install wall mounted backflow preventer in evaporator room 1" on 1" water line feeding chlorine evaporators. 3. REDUNDANT WATER SUPPLY - NORTH HOLLY CHLORINE BUILDING Tie into existing potable water line running north-south serving existing fire hydrant southwest of chlorine building with 6" PVC line to provide redundant water supply to the chemical building. Proposed line shall be insulated as required. Penetrations through pipe chase shall be sealed watertight. See Attachment 3. 4. REDUNDANT WATER SUPPLY - SOUTH HOLLY CHLORINE BUILDING Tie into proposed 6-PW-PVC potable water line southwest of the proposed fill station with 6" PVC line to provide redundant water supply to the chemical building. Proposed line shall be insulated as required. Penetrations through pipe chase shall be sealed watertight. Revise the 8" and 4" potable water lines northwest of the chlorine building as shown on Attachment 4. See Attachment 4. S. CHLORINE BUILDING HOSEBIBS Add one (1) hosebib in the North Holly and South Holly chlorine building evaporator rooms on the potable water supply lines to the evaporators upstream of the proposed backflow preventers. 6. FIRE HYDRANT Install 6" tee, isolation gate valve with stem extension, and fire hydrant at South Holly chlorine and ammonia storage area as shown on Attachments 4 & 5. [ftw95312]t.\pcm4.kj7 peke A-3 a JAN-15-1996 1427 FREESE & NICHOLS 817 735 7492 P.05i09 8"0 OPENING.TYP.OF s FLOW41NE IS TO 88 LEVEL IW�STALLLI�MESMUCALVAANNZEDON. SCREEN COVER WITH GALVANIZED STEEL FRAME ON INTERIOR SIDE. sump GRATING/ N OVER e•Pw•PVC FLOW I \ - BACKFLOW PR=VENTER PLAN A_LW. COVER B-0-0 I C-478 PIPE OR ^� PRECAST YAilLT SECTION E-Pw-DI p Z GROU1 N ` CONC. gl.p GROUT S—Afl— TYPE H, c'rP.I RENFORCINC AS � SHOWN ON A1-51 O TR�IVSITIDN 1'0 PVC—�_ , SUMP BEYOND TRANSITION ENCASE W/ (DIMEN.AS TO PVC LEAN CONCRETE SHOWN ON M-5) ENCASE W/ LEAN CONCRETE BACKFLOW PREVENTION VAULT ILLUSTRATIVE SECTION SCALE 1/4" - 1'-0" ATTACHMENT NO . l_ FORT WORTH HOLLY WATER TREATMENT PLANT PCM- 4 BACKWASH FACILITIES MODIFICATIONS BACKFLOW PREVENTER rallm FFlEESE.NICHOLS JAN-15-1996 14:27 FREESE & NICHOLS 817 735 7492 P.06i09 1 0 N y '' It LU I •M •I , I� N ...• :i� � ii z � j( a t • z I in L6 LL- I �w,1W ii Z ~ � WW ( II W we • ii C)f � •• • ,. � I I J f,• i to cv I i i ~ � � LLJ o d T i OC ( p ® NI }y ; II LLJ I > • I I tl I • a � � II 11 I l I h O I I 0. iLT � Li I �Ow fZ11. In in i w 1 r 1 I 1 dW 1 I � I I � � 1 J �w i z ©� z 1 %169 I I1 () N I 1 1 Ca IM' ' m i -- z i X : JAN-15-1996 14;28 FREESE & NICHOLS 817 735 7492 P,07i09 ... ._ . moi• i��.� . .•. � .,, ,� y ••, Q •�, � Zv � .15, �' �Z Ln ,.. it a C { •. J tW �N� �i Z W ui ,. d a O X d 1 41 Li Q \ ry U ND \ tib\` r,� ♦ c� LL z '� IIlr Li ` /L� 7 q K- zKo F p d p v •..Li LLJI f ��NU z y I� (1• i l G} rr�LU = Ln 7 e 1 1_ 1 rZtl �Ld J m ZZ = 1 cr �'�a GCL Ln CjOQQ J �Vl y u E QNZW ISI t I; . 1 lil � - �� � o 1 � Wo <W 1 a �• 1 ���J131233A JHN-13-1yyb 14;dy FREESE & NICHOLS 817 735 7492 P.08i09 o u tl I ! V a c, I ! I c �z !� cb Z F- z as CLu C o� c ' 1 I j z ¢ L W ED U�"•� � ,� C IW, j � ,� � L Ln au i .� `° I —y it Qmd qz0 � t �' ' u :: ,r'''••' I r� > �CJ e cr Pz V n b r >� I I }�'•' I �� i �"� � m� ....... ..... , ��r�f. 1_ 14 o' ' r I I ....__... . I pi W k c W } o = 4 a% M •-- a� m . �� o JR14-15-1996 14:30 FREESE & NICHOLS 817 735 7492 P,09i09 FIRE HYDRANT ASSEM6I,Y_� FIRE HYDRANT R.O.W. I I nD�USTABLE , MOUNTING FLANGE I V4'VC BOX ( CONCfttTE BLOCKIfd, FOR FIRE HYDRANT, POUR AFTER FIRE E" GATE VA.,VC HYDRANT HAS 6CCN SET (FLCD) PLUMB. DO N07 CDVER DRXN 2030 PSICONC G-OCK NO WASL;CO GRAVEL FILL MAW ' �^ MIN.OF 7 CU•FT. 2030 FS CONC T/ CCNC.RES7 lb"x18'x4'-'LC.'J FS' r 6 Li' A5 REQ'p r!RE HYDRANT ,\;TA'_LAT --N NOT 70 SCALE NOTE FIRE, 1•YORANTS SHA.L CONFORM TO AWW'A S1AN,;AR� Sp[CIF:OAr0NS r'OR CiR'r-BARREL FIRE. I:YORANTS. AWWA SOECIFICA71ON 507 ExCED7 AS NOTE F.H.S AL, HAV& A 5-1/4" MIN VALV- OpEN'NG AND PITH A BARREL APPROX. 7' INSOE CIA. A.-L F.H.SHA_L Br MUCLLCR CENTURIAN A-42" OR APPROVED EQUAL THE MA.N VALVE S-ALL BE LONPRES,'0N T'fFE THAT C_OSLS WIT- FR'SSURE. CENTER OF F.H. SHALL EE GET W'T,. Trf M'.N, 057ANCE TO TSE HArd OF CURB AT 2.5 FT, ANP THE MAX.06STANCE BE•NC 7,5 FT. TO eACK OF CURE. A In T Q ATTACHMENT Na . 5 OR FORT WORTH HOLLY W E WATER TREATMENT PLANT PCM-4 , i_ BACKWASH FACILITIES MODIFICATIONS KWK FIRE HYDRANT ' FREESE•NICHOIs INTER-OFFICE CORRESPONDENCE TO: Ted Gay, Freese &Nichols, Inc. . FROM: David Townsend, Facilities Engineer Water Department DATE: August 12, 1996 SUBJECT: PCM-004A: Miscellaneous. Piping Modifications North and South Holly Water Treatment Plant Backwash Facilities Modification and Chlorine and Ammonia Rehabilitation Project Nos. PW77-060770500020 & PW77-060770500030 This office has reviewed your correspondence dated August 10, 1996 on the proposed contract modification (PCM-004A ) concerning the installation of one 6-inch valve at the SHWTP chemical storage area water suppl}- piping to allow the chemical storage area to be isolated while maintaining water supply to the chlorine building. In addition, two 6- inch valves will be added to the NHWTP concrete chemical line trench water supply piping to allow the chemical storage area to be isolated while maintaining water supply to the chlorine building. The Water Department agrees with your recommendation that the contractor price proposal of$1,375.93 should be accepted as the cost provided is fair and reasonable. Therefore, this office will recommend to the City Council (and/or the City Manager's Office), the approval and acceptance of this additional cost in the form of a change order to be prepared and submitted by you to this office. For accounting pu oses, this PCM will be paid 100% from PW77-060770500030. David R. Townsend, P.E. cc: Frank Crumb Files i FUz_FIw9331IY.y/.o,Y,� LETTER OF VANSMITITAL TO: DWI DATE: ! A PROJECT N0: ATTENTION: OWNER1W77-060770501 20&30 OWNER:City of Fort Worth FIN: M195312 Project:Liorth & South Holly Water Treatment Plant Backwash & Chlorine & Ammonia Facilities We are sending you Attaclied 0 Under Separate Cover VIA the following items: p Daily Construction Iteports No. ` q flans [I Spec!fkat ions ❑ YF'1 leo. j q CKR No. ❑ Addendum No. ❑ C] 11CM No. H Change Order No . ❑ Field Order No - [I Pay Iteq.`^ [] Sut"Attal No. _ Q' Ottfr pn`c.�_fRo��r�_( Copies Iief .V0. Description f I '"1 ►�1-GoyA ����C�. Yeo �s� I ( rolR f)col -0o 6 I S '+-. t1G I Ch�o Z,/-{L ►+ l.!) V LAIN S C�� l� i These tire transmitted foi your: ❑ Use p,,Infornation q Approval p Uistritulion to Panics Q Itesponse D Iteco rd ❑ o l t e r - -- _-- — -- -- - - --- -- I.emarl.s : — _—_ -- ---- - - - - _ ---- Copies to: £U Route To: l IIA�� f p Telephone 817/135-7300 Fax 817/735-7491 Metro 817/429-190D 4056 International Plaza, Suite 200, Fort Worth, TK 76109-4895 Simon W.Freese,P.E. 19041990 Freese Marvin C.Nichols,P.E. 189E-1969 AND • Nichols,INC. CONSULTING ENGINEERS August 10,1996 Mr. David Townsend,P.E. Facilities Design and Construction City of Fort Worth Water Department P.O. Box 870 Fort l Vorth,Texas 76102 Re: North and South Ilolly ]'Vater Treatment Plant Backwash Facilities Modifications and Chlorine and Ammonia Facilities Rehabilitation PIN 77-060770500020 and PIV77-060770300030 PCM-004A North and South Holly Chlorine Improvements T fisc Piping Modifications Dear Mr.Townsend: Transmitted herewith please find a copy of Cajun's August 1, 1996, price proposal for the referenced PCM. This PCM adds one 6" value at the South Holly (Project B) chemical storaer area water supply piping to allow the chemical storage area to be isolated while maintain?ng water supply to the chlorine building. `Phis PCM also adds two 6" values at the North Holly (Project C) concrete chemical trench water supply, piping to allow the chemical storage area to be isolated while maintailLing water supply, to the chlorin.- tniilding. These h,,o areas of additional water supply, control were not included in PCM-044, the original PCM which added several water piping features at the plant's request. We have reviewed the price proposal and recommend the City authorize this additional work- and orkand issue a Change Order in the amount of$ 1,375.93. The costs break down to he Project B- $ 454.06 and Project C - $ 921.87. No additional Contract Time has been requested. Please advise if the Water Department desires this PCM to be incorporated into a Change Order. Sincerely, FREESE AND NICHOLS,INC. G.E.Gay.P.E. xc: Charly Angadicheril Randy Romack Coy Veach fife FTW95312.4.41.004AJ4.43.002 tFM5312)C:IHOLLrCHMOFS'MM\PCM4ARCM.OF.O i TELEPHONE 817-735-7300 • 4055 INTERNATIONAL PLAZA,SUITE 200 FORT WORTH,TEXAS 76109-4895 • METRO 817-429-1900 • FAX 817-735-7491 CAJUN Ct�NTRACTW�S BATON ROUGE•DALLAS•HOUSTON August 1, 1996 Freese & Nichols, Inc . 4055 International Plaza, Suite 200 Fort Worth, Texas 76109-4895 Attention: Ted Gay RE : North and South Holly Water Treatment Plants City of Fort Worth, Texas PCM-004A Dear Mr. Gay: Please find attached our cost for PCM-004A. Work under this order includes installing three gate valves . This work does not involve a change in contract time . Sincerely, CAJUN CONTRACTORS, INC. Chris Thompson Project Manager CCT File 1 . 21 (d) (95028) Field HOME OFFICE: DALLAS OFFICE: HOUSTON OFFICE: FREEPORT OFFICE: LAKE CHARLES OFFICE: Post Office Box 104 Post Office Box 59367 Post Office Box 890809 Post Office Box 1058 Post Office Box 1487 Baton Rouge,Louisiana 70821-0104 Dallas,Texas 75229 Houston,Texas 77289-0809 Clore,Texas 77531-1058 Lake Charles,Louisiana 70602.1487 (504)753-5857 (214)323-9333 (713)479-5554 (409)265-0032 (318)625-3773 FAX(504)751.9777 FAX(214)323.9555 FAX(713)479-0309 FAX(409)265.6751 FAX(318)625.3817 DIRECT FIELD COST ESTIMATE UNIT TOTAL DESCRIPTION QTY UNIT MATERIAL LABOR MATERIAIJ LABOR ADD 6' GATE VALVES: 6' MJ GATE VALVE 3 EA 265.00 30.00 795.00 90.00 6'SOLID SLEEVES 2 EA 75.00 30.00 150.00 60.00 EXCAVATION 1 LS W/PCM-4 W/PCM-4 0.00 0.00 BACKFILL 1 LS W/PCM-4 W/PCM-4 0.00 0.00 TOTALS 945.00 150.00 ITEM: PCM-004A GATE VALVES JOB: N. &S. HOLLY WTP PAGE: 1/1 FIP'Fr01$31t , I-ou1lq • p�sss�+sw+ow LBTTER OF TJMSMITITAI TO: _ --__ -d.�►it J �rt/�(�p��nn c DATE: _.� PROJECT NO: ATTENTION: OWNER:PW77-060`!'!05(. 2�p OWNER:City of Fort Worth FIN-0 M5312 Project:North & South Holly Water Treatment Plant Backwash & Chlorine & Ammonia Facilities We are sending you Attached 0 Under Separate Cover VIA the. following items: p Daily Construction Reports No. 0 Plans 0 Specifications 0 RFI No. 0 CXR Igo• ___ U Addendum No. U Hemo.No.___._ _.. 0' I'C'�i ho._ C7 Change Order �u. 0 field Order No. 0 Pay Rcq. D Submittal No. _ 0 Other Copies Pef.i:o. Description l l•� l 4 i SC ; ` These are triinsmitted fur your : I D Use C] �. nforrat ion 0 Appro�-al Cl Dlstrit�utio") to Pc.Ities Itcsponsc D Record 0 Other Copies to: i 6EG Route To: pr.8V,tz CA r c'� By: Telephone 817;73517300 Fax 617/735-7491 Metro 817/429-1900 4055 International Plaza, Suite 200, Fort Worth, TX 76109.4895 File I'M5312 /4.411004A PROPOSED CONTRACT MODIFICATION PROJECT:HOLLY WTP Chlorine & Ammonia/Backwash Facilities PROJECT NLHBER OWNER:City of Fort Worth PW77-060770500020 & 30 CONTRACTOR: Cajun Contractors 95028 ENGINEER: Freese and Nichols, Inc FTW95312 PCM DESCRIPTION: Misc Piping Modifications PCM NO. 004A NOTIFICATICN TO CONTRACTOR: The Owner proposes to make the additions, modifications or deletions to the Work described in the Contract Documents as shown in Attachment "A". We request that you take the following action within 10 calendar days: ❑ Notify us that you concur that this change does not require a change in Contract time or amount. A Field Order will be issued. x Submit a Price Proposal with detailed cost breakdown of labor, materials, equipment, all other cost related to this change and a revised schedule for performing the described change. ❑ Proceed with the change. Payment will be made at the unit price bid. ❑ Proceed with the change under the time and materials provisions of the Contract. Authorization to proceed with changes must be approved by Field Order or Change Order in accordance with the Contract Documents. // By: r Date: �y��fl CONTRACTOR'S RESPCNSE: We respond to your request as follows: ❑ We concur that this is a no cost or time change. Issue Field Order. ❑ We submit the attached Price Proposal with detailed cost breakdown and revised schedule for performing the described change. ❑ We are proceeding with the change at the unit price bid. ❑ We are proceeding with the change under the time and materials provisions of the Contract. By: Date: ACTION TAKW: ❑ Proposed Contract Modification rejected. Contractor is hereby notified NOT to proceed: By: Date: 13 Field Order issued: No. Date: By: 13 Change Order issued: No. Date: By: r Pile t'M5312 /4.41/ 004A PROPOSED CONTRACT MODIFICATION PGM-004A ATTACHMENT A [ENGINEER: ROJECT: HOLLY WTP Chlorine & Ammonia/Backwash Facilities PROJECT NUMBER WNER: City of Fort Worth PW77-060770500020 & 30 CONTRACTOR: Cajun Contractors_ 95028 Freese and Nichols, Inc. FTW95312 PCM DESCRIPTION: Misc. Piping Modifications NO. 004A The Owner proposes to make the following additions, modifications or deletions to the work described in the Contract Documents. Authorization to proceed with these changes must be approved by Field Order or Change Order in accordance with the. Contract Documents. SOUTH HOLLY CHLORINE AND AMMONIA, PROJECT B 1. Provide price adder to original PCM-004 price proposal to add a 6" MJ gate valve, stem extension, and valve box on the 6" potable water line at the southwest corner of the South Holly chemcial storage area as shown on the attached drawing. NORTH HOLLY CHLORINE AND AMMONIA, PROJECT C 2. Provide price adder to orginal PCM-004 price proposal to add two 6-inch flanged gate valves, one on each side of the 6 inch tee proposed by PCM-004 to be added in the North Holly chemical trench at the southwest corner of the North Holly chlorine building as shown on the attached drawing. By: Date: y 1'r -- - r-KEESE & NICHOLS 817 735 7492 P.08i09 d If ;`�,•�� •,•,•, I ,•�/• ��,; �' 1 � � � OJT � Vt I T1 V I 0 v LAJ 1 WPI< a Fj t LI wLi a� e ;. WLLJ LU f � NSM N r`7 �` c `J ; -r v x w I I I �. C �,��•:•c jam;' ;:� ��;:;: i � �O �♦ x 11`Lz DtAl zz q L /♦1 "' Vii././.i i i:/ � 7:-! qp b L QQJ j " 5 tiu D Lo I r+ ( \\ t. 1100 o N I $14 r'' V 1 / `A I s va yU ~ I k l K Z Q �� ♦ i vQ44y ,An ~ • a f 3ao�S,� � CL % ai �. ' zIL L6J -j Ow c Z2 W 00 f \`'• cc ct It m Ell CL O 1 N t Z I i W �, 1 AWN ' F-m Y t I 1,- 2 —J Ln v� . � tij v � 9 Q � C LU 0 C- LL II _ 11 Lj Zzo Q d v r y� ~ •..f �4Q wqslf) - L! O1- TctffOZ � n ,W O�NN . Z ISN N � n Lull _j J LLZ LJ GLij co LL CL f)� x-0000 C1F-7-wo 1 LJ L � U _ E _ 1 pL_'Lj ZLJ^� r` 1 LJ LJ _ HE 1 O 1 �W 1Li / OZ t M CC W -_ a t c� Cico s y; 4 LL- Ita 11 : 24 _ R17 •74CZ '7A0 --- INTER-OFFICE CORRESPONDENCE TO: Ted Gay, Freese &Nichols, Inc. . FROM: David Townsend, Facilities Engineer Water Department DATE: August 14, 1996 SUBJECT: CMR-004: NHWTP Sedimentation Basin Concrete Overlay Demolition North and South Holly Water Treatment Plant Backwash Facilities Modification and Chlorine and Ammonia Rehabilitation Project Nos. PW77-060770500020 & PW77-060770500030 This office has reviewed your correspondence dated April 22, 1996 on the contractor's modification request (CMR-004) concerning the additional cost for removing an unknown concrete overlay at the North Holly Sedimentation Basin .4 (abandoned). All previous information concerning the basin upper deck (aeration basin) indicated a thickness of approximately 6-inches. However, the actual thickness was in excess of 12 inches. Further research shows that in the 1930's, a concrete overlay of approximately 6- inches (no drawings) was placed on the upper deck to "seal" it. The removal of the concrete overlay is additional work to the contract. The Water Department agrees with your recommendation that the contractor's proposed credit of $23,500.00 should be accepted as the credit provided is fair and reasonable. Therefore, this office will recommend to the City Council (and/or the City Manager's Office), the approval and acceptance of this credit change in the form of a change order to be prepared and submitted by you to this office. For ac ounting purposes, this PCM will be paid 100% from PW77-060770500030. David R. ownsend, P.E. cc: Frank Crumb Files FreseeSimon W.Freese,P.E. 19041990 es Marvin C.Nichols,P.E. 18961%9 AND Nichols,INC. CONSULTING ENGINEERS April 22, 1996 Mr. David Townsend, P.E. Facilities Design and Construction City of Fort Worth Water Department P.O. Box 870 Fort Worth, Texas 76102 Pe: North and South I folly lVater I rcah»ent Plant Backwash Facilities Mod ifications and Chlorine and Ammonia Facilities 1:ehabilitation Pl%'77-060770500020 and 1'1177-050770500030 North I3olly Chlorine Project C\1I;-001 Nil Sedimentation Basin Concrete Overlay I)eInolltlaII Dear Mr. Towzisend: Transmitted herewith please fund a copy of Cajun's \larch 20, 1996, price concurrence letter o; 5 23,500.00 for CNIR-00-1, Cajun's original price proposal dated January 29, 1996 requcstin;, additional compensation in the amouLlt of S 37,392.00 for reulo%al of an unl noK-n con--retc o%-erlay at the North Holly abandoned sedimentation basin, and our letter of February 20, 19;';. to Cajun recommending clarifications and changes to the CNMR-001 Pricing of the work. Durin,; demolition of the existing North Holly abandoned sedimentation basin upper deck structure, ill was determined that a six inch concrete o�•erlat• had been placed on the deck. Our research found this overlay was installed .%,as in the 1930's to seal the slab to prevent short circuiting of the treatment process utilized at that time. No Contract Drawings of the overlay could be found. Removal of the overlay is additional wort: to Cajun's contract. Due to the difficulties of segregating additional work costs, we had reN-iewed Cajun's original price proposal and provided recommendations for more accurate methods of determining the cost of the additional work. We recommend the City accept Cajun's price proposal in the amount of $ 23,500.00 for this additional work. No additional Contract Time has been requested. Please advise if the lVater Department desires this CMR to be incorporated into a Change Order. Sincerely, FREESE AND NIOM—'5, INC. G. E.Gay,P.E. xc: Charly Angadicheril Cov Veach file MV95312.4.42.0W/4.43.002 tFM'95312]Ci1iOLLYCFMGEg CM RrCMR4 RCM13.GEG TELEPHONE 817-735-7300 • 4055 INTERNATIONAL PLAZA,SUITE 200 FORT WORTH,TEXAS 76109-4895 • METRO 817-429-1900 • FAX 817-735-7491 CAJUN CONTRACT(W BATON ROUGE•DALLAS•HOUSTON March 20 , 1996 Freese & Nichols , Inc . 4055 International Plaza , Suite 200 Fort Worth, Texas 76109-4895 Attention : Ted Gay RE : North and South Holly Water Treatment Plants City of Fort Worth, Texas PCM-007 Dear Mr . Gay : We have reviewed your response to our price proposal for CMR-004 . We concur our method of pricing reflects a price that is higher than actual cost . Your method of pricing more closely reflects actual cost . After further review, we estimate our cost associated with CMR-004 to be $23 , 500 . 00 . If you have any questions please do not hesitate to call . Sincerely , CAJUN CONTRACTORS , INC . Chris Thompson Project Manager CCT File 1 . 21 ( c) ( 95028 ) Field HOME OFFICE: DALLAS OFFICE: HOUSTON OFFICE: FREEPORT OFFICE: LAKE CHARLES OFFICE: Post Office Box 104 Post Office Box 59367 Post Office Box 890809 Post Office Box 1058 Post Office Box 1487 Baton Rouge,Louisiana 70821-0104 Dallas,Texas 75229 Houston,Texas 77289.0809 Clute,Texas 77531-1058 Lake Charles,Louisiana 70602.1487 (504)753.5857 (214)323-9333 (713)479.5554 (409)265-0032 (318)625-3773 FAX(504)751-9777 FAX(214)323-9555 FAX(713)479-0309 FAX(409)265-6751 FAX(318)625.3817 i, • F4�C A Simon C.Nichols, 1906-1996 I Marvin C.Nichols,P.E. 18961%9 AND • cc N'cols INC. CONSULTING ENGINEERS February 20, 1996 Mr. Tonuny Bower Cajun Contractors, Inc. 1500 F. Deltline Carrollton, Texas 75006 lie: City of Port Worth Water D.1)3rtm nt ?Forth and South Holly \VI P 13actaVash aucl Anurnorlia Facilities Rehl' bititation 1'lk'77-060770500020 anal l)%V77-06)077USOJ�1::i CNTR-004, Forth boll' Sedirnmtation Basin 6" ('oncret: O�'ellay 1)VrTiOhtlo`1 ('lain ll-.ar N'ir. Bowcr: We have reviewed your Januar' 29. 1996 C.%11:-004 claim for renicwal ori an unk icon Six indi concrete overlay from the deer: of tllc Nollh Holly Ab3ndonded Sedimentation Basin. copy attached. Cajun has requested additional Coroj)ce satlon in the amount of 5 37,392.00 aur rcn)()\iii this additional conerrle. We agee with Cajun that the renlox-al of the six in..h con--rete o�•erlay is addaional \poll: tlld \\C will recommend the City compensate Cajun for this adAltional wort:. We do not agree AN•Ith your Total Cost Recovery nletllod of prising tll: valu„ of tl>i.s additional \\oils. "1 he reasons «r do not ,go,ree with this method are: a) The work methods used by Cajun Nv•ere not the mc.thods your bid estimate was based on. Your work methods included paving breakers to break up the slab, cutting, the reinforcing steel and removing it with a picker and slings, demolition of the concrete columns by jackhanunering the bases, and mucking out. Your Lid estimate was based on a large crane tvi'.h a wrecking ball to demolish the deck, beams, and columns to the floor slab and then mucking,out. b)Your bid estimate of labor to wreck out the slab, beams, and colunuis was 240 manhours. Our records indicate Cajun expended more than 640 manhours of labor to remove the slab, beams, and columns after the six inch overlay had been removed. Since the 240 hours of labor credts against the total cost of this work in determining a remainder cost allocated to the six inch slab removal, it appears the labor credit is too low. TELEPHONE 817-735-7300 • 4055 INTERNATIONAL PLAZA,SUITE 200 FORT WORTH,TEXAS 76109-4895 0 METRO 817-429-1900 • FAX 817-735-7491 Mr. Tommy Bower February 20, 1996 We recommend Cajun re,6ew your cost development caLulations and resubmit your cost claim. The work: to remove the six inch overlay occurred between December 7 and Dxember 27, 1995. We believe a time and materials analysis of the wort; effort to remove the overlay during this period Plus an appropriate cost for mucking out and ]rauling Evill proNide a more fair and a;-curate cost determination. We estimated the cost, for this 4voit during our evaluation. We calculated costs ranbin` tion) 17,000 to 20,000, basad on tun;, and materials pri.ing based on our records and on unit lni:;c pricing methods. Our estimates did not include a hrorata share of the mucking out costs (our records «•ere not detailed down to that level) and msurn:d S 4.260 for hauling and dump costs. We are availabk: to meet with you to re-6ew hrl:inR a;tcmativcs for this adItional wori: and to review our cost estimates if desired. Sincerer', 1 ia;LSEl Atilt hiC}lul_S, 1\'�'. G. E. Gay, P.E. enclosure xc: David Townsend Charly Anoadicheril Randy Romack Coy Veach File FTW95312.4.42.004 IF7W.05312JC.HOIIIICli4WE51CM iCMRW4.OE0 r CONTRACTOR'S MODIFICATION REQUEST PROJECT: iJ45 }COLLI/ e-tN6R\aG:Aw\m6otA , &e-V-WA5h1 MeoomcA-snis PROJECT NUMBER OWNER:- 6[T-1 aF F-r L109Tti, -r'F_xA$ P11 -11 - o(a--105000 20 A 3 CT CONTRAOR: Cok3oj Cor.ntvbctorzs , Inc. ENGINEER: ra SE Oic 4mf-, In1c. 1 11 t53iz CMR DESCRIPTION:_c." 6,jEr4^.1 DEMo, l�. +4oLL,i 5eD. CMR NO. NOTIFICATION BY CONTRACTOR The Contractor proposes to make the additions, modifications, or deletions to the Work described in the Contract Documents, as shown in Attachment "A" and requests that you take the following action: ❑ Notify u.s that you concur that this change does not require a change in Contract time or amount and issue a Field Order. Issue a Change Order for performing the described change. Change in Contract amount are indicated in attached detailed cost breakdown of labor, material , equipment and all other costs associated with this change. Impacts on Contract Time are shown in the attached revised schedule. ❑ Authorize the Contractor to proceed with the described change. Payment will be requested at the unit price bid. ❑ Authorize the Contractor to proceed with the change under the time and materials provisions of the Contract. By: a' Date: I /Z--7 h ENGINEER'S RESPONSE We respond to your request as follows: ❑ We concur that this is a no cost or time change. See attached Field Order No. ❑ Your proposal is recommended to the Owner. See attached Proposed Change Order No. 0 Proceed with the change at the unit price bid. 0 Proceed with the change under the time and materials provisions of the alContract. Additional information is required to evaluate this request. Provide information as described in the attached comments and resubmit. 0 Contractor's Modification Request is rejected. Proceed per Contract Documents. By: t ' ./% Date: 9,23 91. File SUBMITTAL TRANSMITTAL PROJECT: N&S Holly Chlorine Ammonia/Backwash Facilities PROJECT NO. OWNER: City of Fort Worth PW77-0607705000 20 & 30 CONTRACTOR: Cajun Contractors. Inc. 95028 ENGINEER: Freese and Nichols, Inc. FTW95312 kEFERENCE DATA Submittal No. CrAy--co-4 Description: C," c irg Lu^Y bc�mb 4zn,rFwtJ-i* Specification Section No. : Page No.: Paragraph No. : Sheet No. : Sheet Title: Detail Description: REVIEW AND DISTRIBUTION Date Rec'd• By: Date Ret'd: By: TYPE NO. DESCRIPTION NO. COPIES NO. COPIES SENT RETURNED CMR QvV Contractor's Modification Request / CTR Certified Test Report EIR Equipment Installation Report OM Operation and Maintenance Manual MIS Miscellaneous Submittal NBC Notification,,by Contractor PCM Proposed Contract Modification PR Payment Request PP Project Photographs RD Record Data RFI Request for Information SCH Schedule of Progress SUBMIT SHOP DRAWINGS WITH SHOP DRAWING TRANSMITTAL FORM COMMENTS: 4,/A FOR ENGINEER'S USE ONLY: DISTRIBUTION REVIEW No. Sent to: Dept. By Date Sent Date Ret'd L C ntractorl 1�• fOwnerl /J.� 'Ycr.s L (Field Officel lfr File 8/22/91 ❑ Pint Office Bog 104 N Baton Rowe.LA 70821-0104 Phone(504)753.5857 LETTER OF TRANSMITTAL Fag(504)751.9777 ❑ P«t Office Bog S9367 ❑ Pott Off a B.1058 Dallas,TX 75229 Clute.TX77531.1055 Date 1-29-96 Job NO. 95028 Phone(214) 33 Phone 9)2 265-0032 Fax R1Ask AL 111044)323.9555-9555 Fax(409) 65-6751 Attention: Ted Gay U* ❑ Post Office Boa 890809 ❑ Post Office Bos 1487 CON l R t/V1�' Howton,TX 77289-0809 Late Charles.LA 70602-1487 Pl,onc413)479.5534 Plww018)625.3773 RE: N. & S. Holly Water Treatment Plant a.tw turw2.nAtiws•►nxurore Fax(713)479-0309 Fat(316)625.1617 City of Fort Worth, Texas To: Freese and Nichols Inc. 4055 International Plaza Suite 200 Section No. : Fort Worth Texas 76109-4895 Submittal No. : CMR-004 GENTLEMEN: We are sending you ® Attached ❑ Under separate cover via The Followir, ❑ Shop Drawings ❑ Prints ❑ Plans ❑ Samples ❑ Specifications ❑ Copy of Letter ❑ Copies Date or No. Description 1 CMR-004 - 6" Overlay Demo. N. Holly Sed. Basin No. 1 THESE ARE TRANSMITTED AS CHECKED BELOW: ® For Approval ❑ Approved as'SuL mitted ❑ Resubmit Copies for Approval ❑ For Your Use ❑ Approved as Noted ❑ Submit Copies for Distribution ❑ As Requested ❑ Returned for Corrections ❑ Return Corrected Prints ❑ For Review and Comment ❑ ❑ FOR BIDS DUE 19 ❑ PRINTS RETURNED AFTER LOAN TO U: 1EMARKS: 'OPIES: ('hrnn File 1.21C (95028) (w/one) Field (w/one) 1f Enclosures Are Not As Noted, Kindly Notify Us At Once. SIGNED: Chris Thompson, Project Manaizer/ksb , 1 ATTACH M ENT'A' ' NOR7& OUTH HOLLY WATER TREATMENT PLANTS CHLORINE,AMMONIA,BACKWASH FACILITIES MODIFICATIONS JOB —85028 LABOR I 10%SUB 5%CONTSUB 2.5% ITEM DESCRIPTION SUBS MATERIAL LABOR BURDEN FEE FEE TOTAL BOND/INS TOTAL 1 Deducts from Scheduled Value 0 5,468 3,886 2,021 0 1,706 13,081 327 13,408' 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0� 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0{' 0 0 0 0 0 0 0 0 O,I 0 0 01 0 0 0 0 0 0, 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O TOTAL 0 5 468 3 886 ____2,021 _ 0 1,706 13,0611 327 13,406; ORIGINAL SCHEDULED VALUE: $50,800 DEDUCTS FROM ORIGINAL SCHEDULED VALUE: $13,408 TOTAL COST FOR CMR-004: $37,392 CAJUN CONTRACTM DIRECT FIELD COST ESTIMATE Um 7 TOTAL Loaf DESCUMON OTY UNrr m ww Matuial Laboe Material M te&t Labs NoTaz l 6LAZ, f. AfA 5.33 �s.vs n Sf no s D w.Jorx Do1.Jh1 CoLur�r•LS So v t12 2 MN 8 Za40 Atc L- i L6 goo `ice 3Eh•M � <oL�rM�J I�J.��1+u . 5�� CuT pr�c CNr•k cr1ti1,�', IF, Lr (.too z 40 .c #- 8r' lUy G"c rvi iso SA4 CR JC to TL' v �J:1• r �'Z -L 32 L-,A 60 A, v ' R LS i' �• is :.. y. TOTALS :39SCo- JOB NL5 �ol i y ,CM2-C3o4 rrEm 't�Ern0 aHMNO.