EXHIBIT 3.109

State of Delaware

Office of the Secretary of State

     I, EDWARD J. FREEL, SECRETARY OF STATE OF THE STATE OF DELAWARE, DO HEREBY CERTIFY THE ATTACHED IS A TRUE AND CORRECT COPY OF THE CERTIFICATE OF FORMATION OF “WPC HOLDCO, LLC”, FILED IN THIS OFFICE ON THE FIFTEENTH DAY OF DECEMBER, A.D. 2000, AT 9 O’CLOCK A.M.

[SEAL]	/s/ Edward J. Freel
	Edward J. Freel, Secretary of State

3330911 8100	AUTHENTICATION: 0859734
001630936	Date: 12-18-00

CERTIFICATE OF FORMATION

OF

WPC HOLDCO, LLC

Under Section 18-201 of the
Delaware Limited Liability Company Act

     FIRST: The name of the limited liability company is WPC Holdco, LLC (the “Company”).

     SECOND: The address of the registered office of the Company in the State of Delaware is 2711 Centerville Road, Suite 400, Wilmington, Delaware 19808.

     THIRD: The name and address of the Company’s registered agent for service of process is Corporation Service Company, 2711 Centerville Road, Suite 400, Wilmington. Delaware 19808.

     IN WITNESS WHEREOF, the undersigned has executed this Certificate of Formation as of December 15, 2000.

By:	/s/ Dora Blackwood
	Dora Blackwood
	Assistant Secretary

STATE OF DELAWARE

SECRETARY OF STATE

DIVISION OF CORPORATIONS

FILED 09:00 AM 12/15/2000

001630936 – 3330911

Delaware

__________________

The First State

     I, HARRIET SMITH WINDSOR, SECRETARY OF STATE OF THE STATE OF DELAWARE, DO HEREBY CERTIFY THE ATTACHED IS A TRUE AND CORRECT COPY OF THE CERTIFICATE OF AMENDMENT OF “WPC HOLDCO, LLC”, FILED IN THIS OFFICE ON THE SEVENTEENTH DAY OF DECEMBER, A.D. 2001, AT 10 O’CLOCK A.M.

[SEAL]	/s/ Harriett Smith Windsor
	Harriet Smith Windsor, Secretary of State

3330911 8100	AUTHENTICATION: 1567375
020009669	Date: 01-18-02

CERTIFICATE OF AMENDMENT

OF

WPC Holdco, LLC

     1. The name of the limited liability company is WPC Holdco, LLC.

     2. The Certificate of Formation of the limited liability company is hereby amended as follows:

     The name and address of the registered agent is The Corporation Trust Company, Corporation Trust Center, 1209 Orange Street, Wilmington, Delaware 19801.

     IN WITNESS WHEREOF, the undersigned has executed this Certificate of Amendment of WPC Holdco, LLC this 10th day of December, 2001.

WPC Holdco, LLC
 

/s/ Mary R. Adams  

Mary R. Adams, as Assistant Secretary 

STATE OF DELAWARE

SECRETARY OF STATE

DIVISION OF CORPORATIONS

DELIVERED 10:00 AM 12/17/2001

020009669 – 3330911