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NO. 1
TO THE DRAWINGS AND THE PROJECT MANUAL
PROJECT NAME: Warehouse Renovation
CLIENT NAME: Grapevine-Colleyville ISD
LOCATION: Grapevine, Texas
PROJECT NUMBER: 1710-20-09
PROPOSAL DATE: March 11th, 2021 @ 2:00PM
ADDENDUM DATE: March , 2021
THIS ADDENDUM INCLUDES:
AND ALL ATTACHED REVISED DRAWING REFERENCES IN THE ADDENDUM
CIVIL ITEMS FOR ADDENDUM NO. 1 NOTICE TO PROPOSERS:
A. This Addendum shall be considered part of the contract documents for the above-mentioned project as though it had been issued at the same time and incorporated integrally therewith. Where provisions of the following
supplementary data differ from those of the original contract documents, this Addendum shall govern and take
precedence. B. Proposers are hereby notified that they shall make any necessary adjustments in their estimate on account of this
Addendum. It will be construed that each Proposer’s proposal is submitted with full knowledge of all modifications and supplemental data specified therein. Acknowledge receipt of this addendum in the space provided on the
proposal form. Failure to do so may subject Proposer to disqualification.
REFERENCE IS MADE TO THE DRAWINGS AND THE PROJECT MANUAL AS NOTED:
DRAWINGS: 1710-20-12 Facilities:
AD No 1, Civil Item 1: To the Drawings, Sheet C1.0, “WATER PLAN,”
1) Added Detail 1, Protection Detail
2) Added Detail 2, Bollard Detail
01710-22-02 Cross Timbers Middle School:
AD No 1, Civil Item 2: To the Drawings, Sheet C1.1, “DEMOLITION PLAN,”
1) Revised demolition limits for curb inlets.
2) Revised note: “Remove and re-install 115 LF 6’ Chain-link Fence” 3) Revised note: “Straight cut and remove 10 LF of Curb to Provide Positive Overflow for Existing Inlet”
AD No 1, Arch. Item 3: Clarification Items 1) For Clarification, The Admin PA system cabling and devices shall be owner provided and owner installed. Data
cabling specs are for the transportation center.
AD No 1, Arch. Item 4: To the Drawings, Sheet A1.1, “MASTER PLANS,” 3) Finish schedule to be updated as follows:
a. Room A1.71 Portable RM 1 i. N Finish: Change from PNT01 to Exist
ii. E Finish: Change from PNT01 to Exist iii. S Finish: Change from PNT01 to Exist iv. W Finish: Change from PNT01 to Exist
b. Room A1.72 Portable RM 2 i. N Finish: Change from PNT01 to Exist
ii. E Finish: Change from PNT01 to Exist iii. S Finish: Change from PNT01 to Exist iv. W Finish: Change from PNT01 to Exist
ARCHITECTURAL ITEMS FOR ADDENDUM NO. 1 NOTICE TO PROPOSERS:
A. This Addendum shall be considered part of the contract documents for the above-mentioned project as though it had been issued at the same time and incorporated integrally therewith. Where provisions of the following supplementary data differ from those of the original contract documents, this Addendum shall govern and take precedence.
B. Proposers are hereby notified that they shall make any necessary adjustments in their estimate on account of this Addendum. It will be construed that each Proposer’s proposal is submitted with full knowledge of all modifications and supplemental data specified therein. Acknowledge receipt of this addendum in the space provided on the proposal form. Failure to do so may subject Proposer to disqualification.
REFERENCE IS MADE TO THE DRAWINGS AND THE PROJECT MANUAL AS NOTED: DRAWINGS: 1710-20-12 Facilities: For Clarification:
AD No 1, Arch. Item 1: To the Drawings, Sheet A1.1, “FLOOR PLAN AND DOOR SCHEDULE AND CONFIGURATONS,” 1) For clarification, the dashed lines around door 1.17 are for floor clearances. There is not a stoop at this door. 2) Door 1.17 can be moved plan east to miss plumbing and electrical. Contractor will need to verify that the location in
the wall can be cut. 3) In room 1.18 and room 1.19, It is acceptable to replace only the wood mezzanine. All wood joist need to be replaced
with metal studs. All existing electrical and mechanical systems in ceiling need to be removed and placed back in the same location after installation of new deck.
4) From owner review of drawings 3.5.21, Please note electrical contractor to determine areas affected by the panel replacement and notify owner to coordinate outages.
1710-20-11 Administration:
AD No 1, Arch. Item 2: To the Drawings, Sheet A1.1, “FLOOR PLAN – CRC 2, CRC 3 & WHITEHOUSE,” 1) Finish schedule to be updated as follows:
a. Room C3.02 Storage
i. Base: Change from EXIST to BRO1 2) For Clarification, Existing lighting to be replaced in Whitehouse should be salvaged and returned to owner.
AD No 1, Arch. Item 3: Clarification Items 1) For Clarification, The Admin PA system cabling and devices shall be owner provided and owner installed. Data
cabling specs are for the transportation center. 2) From owner review of drawings 3.5.21, New card reader at warehouse door; contractor to ensure door has REX and
all associated items to receive a new card reader and function per District requirements like past GCISD projects.
AD No 1, Arch. Item 4: To the Drawings, Sheet A1.1, “MASTER PLANS,” 1. Technology portable paint at interior wood panel walls to receive new paint per plans – District advised design
MECHANICAL ITEMS FOR ADDENDUM NO. 1 NOTICE TO PROPOSERS:
A. This Addendum shall be considered part of the contract documents for the above-mentioned project as though it
had been issued at the same time and incorporated integrally therewith. Where provisions of the following supplementary data differ from those of the original contract documents, this Addendum shall govern and take
precedence. B. Proposers are hereby notified that they shall make any necessary adjustments in their estimate on account of this
Addendum. It will be construed that each Proposer’s proposal is submitted with full knowledge of all modifications
and supplemental data specified therein. Acknowledge receipt of this addendum in the space provided on the proposal form. Failure to do so may subject Proposer to disqualification.
REFERENCE IS MADE TO THE DRAWINGS AND THE PROJECT MANUAL AS NOTED:
PROJECT MANUAL:
DRAWINGS: 1710-20-12 Facilities:
For Clarification:
AD No 1, Mech. Item 1: To the Drawings, Sheet M1.1, “FLOOR PLAN-HVAC,” 1) Replace existing gas fired water heater and trim with new. Reconnect to existing water/gas piping and electric
utilities. 2) Connect existing c.w. piping that serves the gas fired water heater with new above ceiling. Route piping,
reconnect to existing c.w. piping that serves the existing lavatory, and provide a point of use tankless water heater to serve the lavatory in the existing restroom.
ELECTRICAL ITEMS FOR ADDENDUM NO. 1 NOTICE TO PROPOSERS:
A. This Addendum shall be considered part of the contract documents for the above-mentioned project as though it
had been issued at the same time and incorporated integrally therewith. Where provisions of the following supplementary data differ from those of the original contract documents, this Addendum shall govern and take
precedence. B. Proposers are hereby notified that they shall make any necessary adjustments in their estimate on account of this
Addendum. It will be construed that each Proposer’s proposal is submitted with full knowledge of all modifications
and supplemental data specified therein. Acknowledge receipt of this addendum in the space provided on the proposal form. Failure to do so may subject Proposer to disqualification.
REFERENCE IS MADE TO THE DRAWINGS AND THE PROJECT MANUAL AS NOTED:
PROJECT MANUAL:
DRAWINGS: 1710-20-12 Facilities:
For Clarification:
AD No 1, Elec. Item 1: To the Drawings, Sheet E2.1, “FLOOR PLAN-POWER”, 1) For the tankless water heater run 2 #8, #8G. in ¾” conduit to existing panel “A” in Stor. 1.17 and connect to
PLUMBING ITEMS FOR ADDENDUM NO. 1 NOTICE TO PROPOSERS:
A. This Addendum shall be considered part of the contract documents for the above-mentioned project as though it
had been issued at the same time and incorporated integrally therewith. Where provisions of the following supplementary data differ from those of the original contract documents, this Addendum shall govern and take
precedence. B. Proposers are hereby notified that they shall make any necessary adjustments in their estimate on account of this
Addendum. It will be construed that each Proposer’s proposal is submitted with full knowledge of all modifications
and supplemental data specified therein. Acknowledge receipt of this addendum in the space provided on the proposal form. Failure to do so may subject Proposer to disqualification.
REFERENCE IS MADE TO THE DRAWINGS AND THE PROJECT MANUAL AS NOTED:
PROJECT MANUAL:
AD No 1, Plumb. Item 1: To the Project Manual, Section 22 1000, “PLUMBING PIPING,”
To paragraph 2.01, add the following, B. Potable Hot and Cold Water Piping:
1. Domestic underground service lines outside buildings and entering buildings to points one (1) foot above floor slabs on fill grade (limited to domestic service entering the building) – AWWA C900 Class 200 (DR-
14) PVC hub and spigot or mechanical joint water pipe.
2. Within building, above ceilings and beneath suspended floors: Type “L” hard drawn copper tubing. 3. Within building, below slabs on grade: Type “L” soft copper tubing, with no below grade joints.
AD No 1, Plumb. Item 2: To the Project Manual, Section 22 3000, “PLUMBING,”
To PART 2, add the following paragraph, 2.01 FLUES
A. Water heater flues shall be approved double-wall stainless steel with aluminized steel outer jacket appliance vent,
similar and equal to "Metalbestos", "Van Packer", or "Amerivent". Venting system shall be designed for positive
pressures with pressure sealed joints. All components shall be U.L. listed. Flue caps shall be stainless steel anti-
backdraft type, "Breidert" Type L, or equal, with Type FR-4 flashing-type base.
DRAWINGS: 1710-20-12 Facilities:
For Clarification:
AD No 1, Plumb. Item 3: To the Drawings, Sheet P0.1, “DEMOLITION PLAN-PLUMBING,” 1) Existing electric water heater and associated services on the mezz. To be removed for new work.
2) Existing gas fired water heater and trim to be replaced with new. 3) Remove existing flue as required for new work. Reinstall and reconnect.
TECHNOLOGY ITEMS FOR ADDENDUM NO. 1 NOTICE TO PROPOSERS:
A. This Addendum shall be considered part of the contract documents for the above-mentioned project as though it
had been issued at the same time and incorporated integrally therewith. Where provisions of the following supplementary data differ from those of the original contract documents, this Addendum shall govern and take
precedence. B. Proposers are hereby notified that they shall make any necessary adjustments in their estimate on account of this
Addendum. It will be construed that each Proposer’s proposal is submitted with full knowledge of all modifications
and supplemental data specified therein. Acknowledge receipt of this addendum in the space provided on the proposal form. Failure to do so may subject Proposer to disqualification.
REFERENCE IS MADE TO THE DRAWINGS AND THE PROJECT MANUAL AS NOTED:
DRAWINGS: 1710-20-11 Administration:
AD No 1, Tech. Item 1: Intercom devices shown for location purposes only. System devices and cabling shall be owner provided and owner installed.
1)
1710-20-10 Transportation
AD No 1, Tech. Item 2: To the Drawings, Sheet ET1.1, “Electrical Communications Floor Plan Overall”, omit plan notes #1 and #2 and associated device locations shown on the plans.
NOTES BY SYMBOL- :1 NEW GAS UNIT HEATER TO REPLACE EXISTING IN PLACE. RECONNECT TO
GAS PIPING, FLUE, ELECTRIC, ETC.
NEW GAS UNIT HEATER IN NEW LOCATION. EXTEND FLUE THRU ROOF TO FLUE CAP.
CONNECT TO EXISTING IP(5#) GAS PIPING WITH NEW ON ROOF. FIELD VERIFY EXACT LOCATION, SIZE & PRESSURE BEFORE DOING ANY ASSOC. WORK.
3/4" GAS PIPING DOWN THRU ROOF TO SERVE UNIT HEATER. PROVIDE ISOL. VA., UNION & DRIP LEG AT UNIT CONNECTION.
LB'S TO OZ'S GAS PRESSURE REG ON ROOF.(APPROX. 80 C.F.H.).
NEW EXHAUST SYSTEM TO REPLACE EXISTING, INCLUDING NEW EXH AND ROOF CURB, DUCTWORK, ELECTRIC, ETC. RECONNECT TO EXISTING CONTROLS.
NEW EXHAUST FAN TO REPLACE EXISTING IN PLACE, RECONNECT TO EXISTING ELECTRIC, CONTROLS, ETC. CONTRACTOR TO VERIFY EXISTING FAN SIZES.
NEW PROGRAMMABLE T-STAT TO REPLACE EXISTING FOR NEW UNIT HEATER.
GAS PIPING TO BE RUN IN PIPE SUPPORTS. SEE ARCH. PLANS FOR ADDITIONAL SUPPORT INFORMATION & DETAILS. TYP.
CONTRACTOR TO PROVIDE AND INSTALL NEW GAS FIRED WATER HEATER TO REPLACE EXISTING AND MOUNTED ON 4" CONC. PAD. RECONNECT TO EXISTING WATER, GAS PIPING AND ELECTRICAL WITH NEW TRIM. WATER HEATER SHALL BE SIM. OR EQUAL TO LOCHINVAR WITH THE FOLLOWING MIN. CAP'Y; 75 GALLON MIN. STORAGE. 75 CFH INPUT.
CONNECT TO EXISTING C.W. PIPING WITH NEW ABOVE CEILING. FIELD VERIFY EXACT SIZE & LOCATION BEFORE DOING ANY ASSOC. WORK.
RECONNECT TO EXISTING C.W. PIPING THAT SERVES THE EXISTING LAVATORY. PROVIDE 1/2" C.W. TO POINT OF USE TANKLESS WATER HEATER AND 1/2" C.W. & TEMPERED H.W. TO LAVATORY. POINT OF USE TANKLESS WATER HEATER SHALL BE "ECOSMART" MODEL "POU 3.5, 3.5KW @ 120V. OR EQUAL.
CONTRACTOR TO EXTEND NEW FLUE THRU ROOF.
2
3
4
G
3/4"
EXIST. IP(5#) GAS ON ROOF.
5
N
PLAN
N
PLAN
1/8" = 1'-0"2
FLOOR PLAN - SHOP - H.V.A.C.
6
7
8
RUN ON ROOF.
9
10
EXIST. C.W .PIPINGABOVE CEILING.
11
12
3/4"
1
1
13
X XX X XX
X
XX
XX
XX
X
XX X
XX X
XX
X X
X
X
6" OUT TO FDC
BY ARCH.EACH ZONE PER NFPA & APPROVED LOCATION
1. PROVIDE TEST VALVES AT REMOTE AREA OF
FIRE RISER-DIAGRAM
NOTE:
NO SCALE
ALARM CK. VA.
TRIM (TYP)CHAM. ANDW/ RETARD
DOUBLE DET. CK. VALVE IN
6" FIREFIN FLOORLINE
SW.TAMPERVA. W/O.S.&Y
MA
IN T
O
FS FS
PIPE SUPPORT
(TYP)FLOW SW.
MA
IN T
O
SP
RK
. Z
ON
E
SP
RK
. Z
ON
E
RISE, PER THE CITY OFGRAPEVINE COLLEYVILLE.TYP. EACH RISER.
NOTES BY SYMBOL :1 TURN AUTO SPRINKLER PIPING UP THRU FLOOR FROM BELOW TO AUTO. SPRINKLER RISER, BACKFLOW PREVENTER, ALARM CK. VA., RETARD CHAMBER, AND MAIN DRAIN.
2 APPROX. LOCATION OF AUTO. SPRK. MAIN ABOVE CEILING. TYP. AS SHOWN.
3 CITY APPROVED FREE STANDING FIRE DEPARTMENT CONNECTION.
1
22
2
2
2
2
2
2
SPRK
SP
RK
SP
RK
2
2
SPRK SPRK SPRK
SP
RK
SP
RK
SP
RK
SP
RK
SP
RK
SP
RK
SP
RK
SP
RK
SP
RK
SP
RK
SP
RK
SP
RK
SP
RK
SP
RK
2
2
2
2
2
2
2
2
2
2
2 2
ZONE 1 - SERVING THE PLUMBING BAY AND ADMIN. AREA.
ZONE 2 - SERVING THE WAREHOUSE (CMSA) CONTROL MODE SPECIFIC APPLICATION HIGH VOLUME SYSTEM.
FDCFDCFDC
4" 4" 4"
3
REFER TO CIVIL PLANS FOR THE LOCATION OF THE EXIST. FIRE HYDRANT.
1
X XX X XX
X
XX
XX
XX
X
XX X
XX X
XX
X X
X
X
DEMOLITION NOTES:
1. THESE DRAWINGS SHOW DEMOLITION WORK REQUIRED BASED ON
AVAILABLE INFORMATION. IT IS INTENDED THAT CERTAIN EXISTING
MECHANICAL SYSTEMS, INCLUDING EQUIPMENT, DUCTWORK, PIPING AND
ELECTRICAL SERVICE SHALL BE REMOVED UNDER THIS CONTRACT AS
NOTED AND SPECIFIED IN THE DRAWINGS & SPECIFICATIONS.
CONTRACTOR SHALL VERIFY THE EXISTING CONDITIONS AT THE SITE AND
ACCOUNT FOR CONDITIONS IMPACTING DEMOLITION WORK IN HIS BID.
2. THE OWNER SHALL RETAIN THE RIGHTS TO ALL EQUIPMENT REMOVED
UNDER THIS CONTRACT. ALL EQUIPMENT THE OWNER WISHES TO RETAIN
SHALL BE REMOVED BY THIS CONTRACTOR AND DELIVERED TO THE
OWNERS DESIGNATED STORAGE SITE. ALL OTHER MATERIALS SHALL BE
REMOVED FROM THE SITE AND PROPERLY DISPOSED OF BY THE
CONTRACTOR.
3. IT SHALL BE THE CONTRACTOR'S RESPONSIBILITY TO COORDINATE THE
"PHASING" OF DEMOLITION & REMOVAL SO AS TO KEEP IN SERVICE ALL
EXISTING MEP SYSTEMS DURING CONSTRUCTION. SEE WORK SCHEDULE
1 EXISTING ELECTRIC WATER HEATER AND ASSOC. SERVICES ON MEZZ. TO BE REMOVED.
REMOVE PIPING BACK TO MAIN AND CAP OR AS REQUIRED FOR NEW MEZZ. FLOORING WORK.
EXISTING GAS FIRED WATER HEATER AND TRIM TO BE REMOVED AND REPLACED WITH NEW.
SEE NEW WORK PLAN.
REMOVE EXISTING FLUE AS REQUIRED FOR NEW WORK. REINSTALL AND RECONNECT. FIELD
VERIFY BEFORE DOING ANY ASSOC. WORK.
CONTRACTOR TO REMOVE EXISTING PIPING, ELECTRICAL CONDUIT, WIRING AS REQUIRED
FOR NEW. MEZZ. FLOORING AND REINSTALL AS REQUIRED. FIELD VERIFY BEFORE DOING ANY
ASSOC. WORK.
2
1
2
1
3
4
3
4
PRESS. & TEMP.RELEIF VALVE
FULL SIZE HOSE END DRAIN.
HOT WTR. TO FIXTURESSIZE AS NOTED ON PLANS
COLD WTR. MAKE-UPSIZE AS NOTED ON PLANS
BALL VALVE (TYP.)CHECK VALVE (TYP.)
UNION (TYP.)
NO SCALE
CHECK VALVE (TYP.)
HOT WTR. RETURN
NEW FLUE
LUB. PLUG VALVE
GAS SUPPLY
DRIP LEG
DETAIL - WATER HEATER PIPING
FULL SIZE DRAIN LINE TOOUTSIDE OF BLDG.
WATER HEATER
GATE VA., TYPICAL
PROVIDE EXPANSION TANK PER CODE FOR NEW WATER HEATER.
NO SCALE
TEMPERED & COLD SUPPLY LAVATORY DETAIL
NOTES:1. THERMOSTATIC MIXING VALVE MUST HAVE BRACKET FOR MOUNTING TO WALL.2. PROVIDE RUBBER SPACER BETWEEN WALL AND TMV.3. WALL ANCHOR SYSTEM MUST BE USED.4. STAINLESS STEEL SUPPLY LINES MUST BE KEPT TO MINIMUM LENGTH.5. THERMOSTATIC MIXING VALVE SHALL BE LEONARD MODEL TM-15-E OR EQUAL.