university of california, san diegormp-public.ucsd.edu/fdc/job bids/4631 - radiology... ·...

UNIVERSITY OF CALIFORNIA, SAN DIEGO

BERKELEY • DAVIS • 1R VINE • LOS ANGELES • MERCED • RIVERSIDE • SAN DIEGO • SAN FRANCISCO

OFFICE OF THE ASSOCIATE VICE CHANCELLOR CAMPUS ARCHITECT- FACILITIES DESIGN & CONSTRUCTION TEL: (858) 534-2177 FAX: (858) 534-4363

November 15, 2013

TO: ALL HOLDERS OF BIDDING DOCUMENTS RADIOLOGY ROOM #2 REMODEL UCSD MEDICAL CENTER - HILLCREST UNIVERSITY OF CALIFORNIA, SAN DIEGO Project No.: 4631/A4S-002/964800

Enclosed is the following:

SANTA BARBARA • SANTA CRUZ

9500 GILMAN DRIVE #0916 LA JOLLA, CALIFORNIA 92093-0916

l. Addendum No.2 dated November 15,2013, to the Construction Documents. 2. Office of Statewide Health Planning and Development's Testing, Inspection and Observation

Program. 3. Revised drawing P-100 (signed).

PLEASE NOTE: BID DATE REMAINS THURSDAY, NOVEMBER 21,2013, AT 2:00P.M.

Sincerely,

James . Gillie ~tl tNI/f0Ji6

Senio Director of Construction Serv· es · ities Design and Construction

Enclosures

RADIOLOGY ROOM #2 REMODEL Project No.: 4631/A4S-002/964800 UCSD MEDICAL CENTER- HILLCREST UNIVERSITY OF CALIFORNIA, SAN DIEGO

ADDENDUM NO. TWO TO THE

CONSTRUCTION DOCUMENTS NOVEMBER 15, 2013

General:

The following changes, additions, or deletions shall be made to the following documents; all other conditions shall remain the same.

I. CLARIFICATIONS

Item# 1. Question: The materials included in spec section 09652 sheet vinyl floor coverings

are Mannington commercial and Toli "Mature" woods, neither of which are used on this project. The materials used on this project are Forbo Marmoleum "Real" linoleum and Armstrong Timberline" sheet vinyl. Will specifications be issued to cover these materials?

Answer: Mannington and Toli products currently listed in spec section 09652 are incorrect. Forbo Marmoleum and Armstrong Timberline items specified on the drawings are the correct products.

2. Question: Both the Forbo linoleum and the Armstrong sheet vinyl will receive heat welded seams. There will be one seam which cannot be welded. This is the seam between the linoleum and the sheet vinyl. The linoleum rod will not bond to the sheet vinyl and the sheet vinyl weld rod will not bond to this linoleum. Please advise how to address this seam.

Answer: Per Forbo, the linoleum weld rod will bond to sheet vinyl products with Marmoweld welding rod.

3. Question: Is there a specification for the existing flooring which will need to patch in?

Answer: Existing flooring in (E) Waiting Area 1-505 is Marmoleum Real and Fresca. Remove flooring in its entirety in lieu of patching. New flooring to match existing product, style and pattern.

4. Question: Sheet A-602 indicates a Privacy Curtain specification FBR-2 under the finish specifications. The finish schedule room 1-504 Radiology Exam Room 2 under remarks references FBR-2. Please clarify in plan view where the Privacy Curtain is to be located.

Answer: FBR-2: Privacy Curtain is no longer included in project.

5. Question: Detail 23/A-521 callout in room 1-506A on the Renovation Reflected Ceiling Plan on sheet A-102 references a Unistrut@ Partition- Parallel detail.

Answer: Incorrect detail reference. Refer to detaii7/A-511.

UCSD- FD&C Page 1 of 1

OFFICE OF STATEWIDE ALTH PLAMNING AND DEVELOPIVIENT FACILITIES DEVELOPIVIENT DiVISIOM-www.oshpd.ca.gov/fclcl 400 R Street, Suite 200 ~ Sacramento, California 9581 I Phone (916)440-8300

ftvP 700 N. Alameda Street, Suite 2-500 ~ Los Angeles, California 90012 Phone (213)897-0166

OCT 0 8 mi FAX (916) 324-9188 FAX (213) 897-0168

ENTEREi

Testing, Inspection and Observation Program 2010 California Building Standards Code - OSHPD 1

This program is prepared and submitted for an OSHPD I project. OSHPD 1 projects include alt construction and remodel projects for general acute-care hospitals and acute psychiatric hospitals. OSHPD 1 projects also include construction and remodel of stalled nursing facilities and/or intermediate care facilities except those of single-stoiy, Type V, wood or light steel-frame construction.

A Facility*: 12359 "acilily Name: UCSD Medical Center - Hillcrest Project*: P-2012-01407

Street Address: 200 W. Arbor Drive Sub #:

City: San Diego County: San Diego

Record Name (Scope of Project): Radiology Room 2

TESTS - DOCUMENTATION / CERTIFICATION REQUIRED CONSTRUCTION VERIFICATION

OFFICE USE ONLY

STRUCTURAL TESTS

Compact fill CBC 1704A.7 Filled material acceptance test

RESPONSIBLE FIRM OR INDIVIDUAL

*TBD IOR FDD

CONSTRUCTION ACCEPTANCE

DSE:

Compact fill CBC 1704A.7& J 107.5 Compaction test DSE:

Soil and rock anchors CBC 1811A&J106.2 Load test DSE:

Deep foundation elements CBC 1810A.3.3.1.2, 181 OA.3.1.5.1, & 1810A.3.10.4 Load test DSE:

Concrete CBC 1704A.4.1, 1916A.1, Cementitous materials

ACI-318 3.1.2 & 3.2 DSE:

Concrete CBC 1704A.4.1, ACI-318 3.1.2 & 3.3.1 Aggregates/Reactive aggregates DSE:

Concrete CBC1704A.4.1, Water

ACI-318 3.1.2 & 3.4 DSE:

Concrete CBC 1704A.4.1, Admixtures

ACI-318 3.1.2 & 3.6 DSE:

Concrete CBC1704A.4.1, Mix design

1904A, & 1905A.1 to 1905A.5 DSE:

Concrete CBC 1704A.4.1 & 1905A.6 Strength test DSE:

Concrete CBC 1704A.4.1, 1916A.2, & ACI-318 3.5 Metal reinforcement (including welded wire fabric) DSE:

Concrete CBC 1704A.4. I & ACI-318 3.5.5 Headed studs and headed stud assemblies DSE:

Concrete CBC 1704A.4.1, 1916A.3& ACI-318 3.5.6 Prestressing tendons and anchorage DSE:

Shotcrete CBC 1913A.5 Preconstruction test DSE:

Shotcrete CBC 1913A.10 Strength test DSE:

NOTE: To Be Determined (TBD) - The name of the firm or individual to perform this test or special inspection shall be submitted to and approved by the Office, prior to proceeding with the work that requires this test or special inspection.

OSH-FD-303A (Rev 03/11) STATE OF CALIFORNIA - HEALTH AND HUMAN SERVICES AGENCY Page I of 11

FAX (916) 324-9188 FAX (213) 897-0168

Testing, inspection and Observation Program 2010 California Building Standards Code - OSHPD 1

Facility #: 12359 Facility Name: UCSD Medical Center - Hillcrest Project #: P-2012-01407 Sub #:

13 TESTS - DOCUMENTATION / CERTIFICATION REQUIRED C VER1FICAT}ON N OFFICE USE ONLY 13

STRUCTURAL TESTS RESPONSIBLE FIRM OR

INDIVIDUAL *TBD IOR FDD


13

Shotcrete CBC 1704A.17.1 Core test DSE:

13

Post-installed anchors CBC 1916A.7 Installation verification test

X

DSE:

13

Masonry CBC 2105A.2.2.1.4, ACI-530 1.18, & ACI-530.1 2.1 Material standards tests DSE:

13

Masonry CBC 2105A.2.2.1.4 & 2103A.8 Mortar test DSE:

13

Masonry CBC 2105A.2.2.1.4 Grout test DSE:

13

Masonry CBC2103A.14 Additives and admixtures DSE:

13

Masonry CBC 2105A.4 Core test DSE:

13

Masonry CBC2105A.2.2 Compressive strength f'm test DSE:

13

Steel CBC 2203A.1 Structural steel and cold formed steel X DSE:

13

Steel CBC 2212A.1 & 1708A.3 High strength bolts, nuts, and washers X DSE:

13

Steel CBC 2212A.2& 1708A.3 End-welded studs DSE:

13

Steel CBC 2205A.4.3 & 1708A.3 Buckling restrained brace (Load test) DSE:

13

Steel CBC 1708A.3 Nondestructive weld test DSE:

13

Steel CBC 2212A.4.2& 1708A.3 Beam to column moment connections DSE:

13

Miscellaneous CBC 1409.2.1 Veneer bond strength test DSE:

13

Equipment and components CBC 1708A.4 Special Seismic Certification DSE:

13

Isolators CBC 1708A.5 Prototype and production test DSE:

13

Dampers CBC 1708A.5 Prototype and production test DSE:

* NOTE: To Be Determined (TBD) - The name of tho firm or individual to perform this test or special inspection shall be submitled to and approved by the Office, prior to proceeding with the work that requires this test or special inspection.

OSH-FD-303A (Rev 03/1 I) STATE OF CALIFORNIA - HEALTH AMD HUMAN SERVICES AGENCY Page 2 of 11

I n ! OFFICE OF STATEWIDE .ALTH PLANNING ANO DEVELQPMEN1 FACILITIES DEVELOPMENT DIVISION - www.oshpd.ca.gov/fdd 400 R Street, Suite 200 - Sacramento, California 95811 Phone (916) 440-8300 700 N. Alameda Street, Suite 2-500 ~ Los Angeles, California 90012 Phone (213) 897-0166

=N1 •rvi C . | f ] | ! , , OFFICE OF STATEWIDE WlfALTH PLANNING AMD DEVELOP! .; f i - i ! '! ' '$' FACILITIES DEVELOPMENT DIVISION - www.oshpd.ca.gov/fcld

" ' j ' . V 400 R Street, Suite 200 ~ Sacramento, California 95811 Phone (916)440-8300 JLWM- 700 N. Alameda Street, Suite 2-500 - Los Angeles, California 90012 Phone (213) 897-0166

Testing, Inspection and Observation Program 2010 California Building Standards Code - OSHPD

FAX (916) 324-9188 FAX (213) 897-0168

Facility*: 12359 Facility Name: UCSD Medical Center - l-lillcrest^ Project #: P-2012-01407

B TESTS - DOCUMENTATION / CERTIFICATION REQUIRED

STRUCTURAL TESTS

Structural Design Criteria CBC 104.11 Tests to support alternative system

ELECTRICAL TESTS

Ground fault protection CEC 230.95(C) & 517.17(D) Performance test Emergency generator tests CEC 700.4(A) & NFPA 110-2005 § 7.13

MECHANICAL TESTS

Listed hood assemblies CMC 508.6 Grease removal devices in hoods CMC 509.1



*TBD

CONSTRUCTION VERIFICATION

IOR

*TBD


Commercial kitchen hood ventilation CMC 511.2.3 Performance test

Refrigeration equipment CMC 1124.0 Refrigeration detection and alarm system CMC 1121.4 & CFC 606.8 Acceptance testing Refrigeration flaring system CMC 1119.3 Safety and effectiveness Steam and hot water boilers CMC 1020.0 & 1021.0 Hydronics CMC 1201.2.8 Pressure test of steam and water piping Hydronic panel heating system CMC 1207.0 Testing

Process piping CMC 1406.2 Pressure test Ventilation system CMC 407.3.1 & Table 4-A Areas tested and balanced Airborne Infection Isolation Rooms and Protective Environment Rooms CMC 416.4 Alarm system test Airborne Infection Isolation Rooms and Protective Environment Rooms CMC 417.0 Mechanical system tested and balanced

TioTETf oBe DeteTmhTedTjBb) - the name of the firm or Office, prior to proceeding with tho work that requir

IOR

Sub #:

*TBD IOR

OFFICE USE ONLY

FDD CONSTRUCTION

ACCEPTANCE

DSE:

FDD CONSTRUCTION

ACCEPTANCE

CO:

FLSO:

FDD CONSTRUCTION ACCEPTANCE

CO:

CO:

CO:

CO:

FLSO:

CO:

CO:

CO:

CO:

CO:

CO:

CO:

CO:

individual to perform"this test or special inspection shall be submitted to and approved by the es tliis test or special inspection.

OSH-FD-303A (Rev 03/11) STATE OF CALIFORNIA - HEALTH AND HUMAN SERVICES AGENCY Page 3 of 11

0 1 OFFICE OF STATEWIDE DEALTH PLANNING AND DEVELOPMENT?^ FACILITIES DEVELOPMENT DIVISION - www.oshpd.ca.gov/fdd 400 R Street, Suite 200 ~ Sacramento, California 95811 Phone (916) 440-8300 700 N. Alameda Street, Suite 2-500 ~ Los Angeles, California 90012 Phone (213)897-0166

FAX (916) 324-9188 FAX (213) 897-0168

resting, flnspe 2010 California B

ctlon and Observa' Liilclinq Standards Code

:ion Program - OSHPD 1 ....—.———T— • ••• i

Facil ity*: 12359 Facility Name: UCSD Medical Center - Hillcrest Project #: P-2012-01407 Sub #:

B TESTS - DOCUMENTATION / CERTIFICATION REQUIRED CONSTRUCTION VERIFICATION

OFFICE USE ONLY

FIRE PROTECTION EQUIPMENT TESTS RESPONSIBLE FIRM OR

INDIVIDUAL *TBD IOR

FDD CONSTRUCTION i ACCEPTANCE

Fire alarm CFC 901.5, CBC 907.7, & NFPA 72-2010 § 14.4 Acceptance and reacceptance testing x FLSO:

Fire and smoke dampers CFC 901.5 & CBC 907.8 Acceptance testing X FLSO:

Duct detectors CFC 901.5 & NFPA 72-2010 § 14.4 Differential pressure test FLSO:

Smoke control system CFC 901.5 & CBC 909.18 Acceptance testing FLSO:

Fire sprinkler CFC 901.5 & NFPA 13-2010 Chapter 24 Acceptance testing - Aboveground piping FLSO:

Fire sprinkler CFC 901.5 & NFPA 13-2010 Chapter 24 Acceptance testing - Underground piping FLSO:

Standpipe system CFC 901.5 & NFPA 14-2007 Chapter 11 Acceptance testinq - Aboveground piping FLSO:

Standpipe system CFC 901.5 & NFPA 14-2007 Chapter 11 Acceptance testing - Underground piping FLSO:

Private fire mains CFC 901.5 & NFPA 24-2010 § 10.10 Acceptance testing FLSO:

Fire pumps CFC 901.5 & NFPA 20-2007 § 14.1 & 14.2 Acceptance testinq FLSO:

Wet chemical extinguishing system CFC 901.5 & NFPA 17A-2002 § 6.4 Acceptance testing FLSO:

Clean agent extinguishing system CFC 901.5 & NFPA 2001-2008 § 7.1 Acceptance testing FLSO:

C 0 2 extinguishing system CFC 901.5 & NFPA 12-2005 § 4.4.3 & 4.4.4 Acceptance testinq FLSO:

Dry chemical extinguishing system CFC 901.5 & NFPA 17-2002 § 10.4 Acceptance testing FLSO:

Halon 1301 extinguishing system CFC 901.5 & NFPA 12A-2004 § 6.7 Acceptance testing FLSO:

OTHER TESTS RESPONSIBLE FIRM OR

INDIVIDUAL *TBD IOR


Polarity Test, CECE 200.10(B) X FLSO:

Underground fuel storage tank CFC 3404.2.12 & NFPA 30-2008 § 21.5.2 Tightness testing FLSO:


OSH-FD-303A (Rev 03/11) STATE OF CALIFORNIA - HEALTH AND HUMAN SERVICES AGENCY Page 5 of 11

1\

OFFICE OF STATEWIDE ALT I-I PLANNING AND DEVELOP M E N ! FACILITIES DEVELOPMENT DIVISION - www.oshpd.ca.gov/fdd

lIlJ'l'Til 4 0 0 R s ' r e e t . Suite 200 ~ Sacramento, California 95811 Phone (916)440-8300 700 N. Alameda Street, Suite 2-500- Los Angeles, California 90012 Phone (213)897-0166

FAX (916) 324-9188 FAX (213) 897-0168

ana'i it il inspection and unservavio Pi 'ooii"a[iiii 2010 California Bui ing Standards Code - OSHPD

Facil i ty*: 12359 Facility Name: UCSD Medical Center •• Hillcrest Project #: P-2012-01407

SPECIAL INSPECTIONS - DOCUMENTATION / CERTIFICATION REQUIRED CONSTRUCTION VERIFICATION

Sub #:

OFFICE USE ONLY

STRUCTURAL INSPECTIONS

Alternative system CBC1704A.15 Construction materials and methods for alternative system

RESPONSIBLE INDIVIDUAL *TBD IOR FDD


DSE: Shoring CBC J106.2 Shoring DSE: Mechanical and electrical components CBC 1707A.7 Anchorage, Bracing, and Vibration Isolators DSE: Designated seismic system CBC1707A.8 Special Seismic Certification label and anchorage or mounting DSE: Seismic isolation and damping system CBC 1707A.9 Fabrication, installation, prototype, and production testing DSE: Aluminum CBC 2003.1 Inspection DSE:

MECHANICAL INSPECTIONS RESPONSIBLE INDIVIDUAL T B D IOR


Visually inspect filter banks for torn media and bypass filter frames CMC 408.1.3 Process piping CMC 1406.3 Installation

CO:

CO:

PLUMBING INSPECTIONS RESPONSIBLE INDIVIDUAL *TBD

Fuel piping CPC 1204.0

[OR

FDD CONSTRUCTION

ACCEPTANCE

CO: Medical gas NFPA 99-2005 Chapter 5 Brazing and labeling of systems CO:

FIRE PROTECTION INSPECTIONS RESPONSIBLE INDIVIDUAL *TBD

Fire resistive materials CBC1704A.12 Spray-applied fireproofing

IOR

Smoke control systems CBC 1704A.16 Ductwork and operation


FLSO:

FLSO: Sprinkler system piping CFC 901.5 & NFPA 13-2010 § 6.5.2 Welded pipe and fittings FLSO: Standpipe system piping CFC 901.5 & NFPA 14-2007 § 4.4.: Welded pjpejand fittings FLSO:


OSH-FD-303A (Rev 03/TI) STATE OF CALIFORNIA - HEALTH AND HUMAN SERVICES AGENCY of 11

tv OFFICE OF STATEWIDE \LTH PLANNING AND DEVELOPMENT ^ FACILITIES DEVELOPMENT DIVISION - www.oshpd.ca.gov/fdd

400 R Street, Suite 200 ~ Sacramento, California 95811 700 N. Alameda Street, Suite 2-500 ~ Los Angeles, California 90012

Phone (916)440-8300 Phone (213) 897-0166

FAX (916) 324-9188 FAX (213) 897-0168

Testing, Inspection and Observation Program 2010 California Building Standards Code - OSHPD 1

r aci l i ty#: 12359 Facility Name: UCSD Medical Center •• Hillcrest Project #: P-2012-01407 Sub #:

SPECIAL INSPECTIONS - DOCUMENTATION / CERTIFICATION REQUIRED

OTHER SPECIAL INSPECTIONS

Polarity Test CEC 200.10 (b)

RESPONSIBLE INDIVIDUAL *TBD

TBD

CONSTRUCTION VERIFICATION

IOR

OFFICE USE ONLY


CONSTRUCTION OBSERVATION AND REPORTING FOR

OFFICE USE ONLY

Ref. No.

REQUIRED CONSTRUCTION OBSERVATION

(See "PERSONAL KNOWLEDGE" as defined in California Administrative Code, Section 7-151)

VERIFIED COMPLIANCE REPORT REQUIRED AS INDICATED (Form OSH-FD-123)

FOR OFFICE

USE ONLY

Ref. No. 'MILESTONES GEOR AOR SEOR MEOR EEOR CONT

SP INSP IOR

OSHPD FDD

Steel framing prior to ceiling installation X X

FINAL VERIFIED COMPLIANCE REPORT AT COMPLETION X X X X X x ! i

* NOTE: Construction observation may be scheduled at project milestones, at specific intervals, or a combination of both.

ABBREVIATIONS: Geotechnical Engineer of Record (GEOR), Architect of Record (AOR), Structural Engineer of Record (SEOR), Mechanical Engineer of Record (MEOR), Electrical Engineer of Record (EEOR), Contractor or Owner/Builder (CONT), Special Inspector (SP. INSP), and Inspector of Record (IOR).

OSH-FD-303A (Rev 03/11) STATE OF CALIFORNIA - HEALTH AND HUMAN SERVICES AGENCY of 11

•4W\t - OFFICE OF STATEWIDE ALTH PLANNING AND DEVELOP FACILITIES DEVELOPMENT DIVISION - www.oshpcl.ca.gov/fdd 400 R Street, Suite 200 ~ Sacramento, California 95811 700 N. Alameda Street, Suite 2-500 - Los Angeles, California 90012

1EN'

Testing, Inspection and Observation Program 2010California Building Standards Code - OSHPD 1

Phone (916)440-8300 Phone (213)897-0166

FAX (916) 324-9188 FAX (213) 897-0168

Facility*: 12359 Facility Name: UCSD Medical Center - Hillcrest P-2012-01407

Project #: Sub #:

CONSTRUCTION OBSERVATION AND REPORTING

Ref. No.

REQUIRED CONSTRUCTION OBSERVATION

(See "PERSONAL KNOWLEDGE" as defined in California Administrative Code, Section 7-151)

'INTERVALS

VERIFIED COMPLIANCE REPORT REQUIRED AS INDICATED (Form OSH-FD-123)

GEOR AOR

FINAL VERIFIED COMPLIANCE REPORT AT COMPLETION

SEOR /lEOR

X

EEOR CONT

X

SP INSP IOR

X

FOR OFFICE

USE ONLY

OSHPD FDD

X NOTE: Construction observation may be scheduled at project milestones, at specific intervals, or a combination of both.

ABBREVIATIONS: Geotechnical Engineer of Record (GEOR), Architect of Record (AOR), Structural Engineer of Record (SEOR) Mechanical Engineer of Record (MEOR), Electrical Engineer of Record (EEOR), Contractor or Owner/Builder (CONT), Special Inspector (SP INSP) and Inspector of Record (IOR).

OSH-FD-303A (Rev 03/11) STATE OF CALIFORNIA - HEALTH AND HUMAN SERVICES AGENCY of 11

OFFICE OF STATEWIDE ALTH PLANNING AND DEVIELO FACILITIES DEVELOPIVIENT DIVISION - www.oshpd.ca.gov/fdd 400 R Street, Suite 200 ~ Sacramento, California 95811

mm

700 N. Alameda Street, Suite 2-500 ~ Los Angeles, California 90012

"estincj, Inspection and Observation Program

Phone (916)440-8300 Phone (213) 897-0166

FAX (916) 324-9188 FAX (213) 897-0168

P-2012-01407 Facil ity*: 12359 Facility Name: UCSD Medical Center - Hillcrest Project #: Sub #:

Samples of Test and Inspection Reports are:

• Attached

• To be provided following determination of the responsible firm(s) or individual(s). Samples shall be submitted to and approved by the Office, prior to proceeding with the work that requires tests or special inspections.

. clays of the completion of all tests and

• Not applicable. Project has no required tests or special inspections.

Required test and inspection reports shall be prepared and submitted to OSHPD/FDD within . inspections. If not designated, all reports shall be submitted to the Office within 15 calendar days.

In addition to the preprinted tests and special inspections identified on this form, this program includes additional tests and special inspections as indicated:

• Other Tests

• Other Special Inspections

• See Attachment

This program has been prepared and submitted for an OSHPD I project. OSI-IPD I projects include all construction and remodel projects for general acute care hospitals and acute psychiatric hospitals. OSHPD I projects also include construction and remodel of skilled nursing facilities and/or intermediate care facilities except those of single-story, Type/tQyvood or light sfeej-frame construction.

Submitted by:

I. Simon Warner C-24151 fi

Architect/Engineer of Record (Print Name) Professional License %7 Architect/Engineer of Record (Signature) Date

FOR OFFICE USE ONLY

OSI-IPD Plan A r ^ ^ ^ j / ^ ^ OSHPD Field Acceptance:

Name -

Date Name Date

i Date

/ / /

Mechanical

' ' Date 4 £ (9

Electrical 0

Date

At Fire and Li fe Safety

Date

Date

A

AC

AC

AC

AC

AC

Comments:

MOTE: For Testing, Inspection and Observation Program Instructions, visit our website.

OSH-FD-303A (Rev 03/11) STATE OF CALIFORNIA - HEALTH AND HUMAN SERVICES AGENCY of Tl