City of Columbus - File #: 1121-2005

• File #: 1121-2005
• Version: 1
• Type: Ordinance
• Status: Passed
• File created: 6/13/2005
• In control: Utilities Committee
• On agenda: 7/11/2005
• Final action: 7/14/2005
• Title: To authorize the Director of Public Utilities to modify the contract with ms consultants, inc., for Professional Engineering Services for the Hap Cremean Water Plant Lagoons Nos. 1, 2, and 3 Sludge Removal, for the Division of Water, and to authorize the expenditure of $850,556.01 from Waterworks Enlargement Voted 1991 Bonds Fund, and to declare an emergency. ($850,556.01)

Date	Ver.	Action By	Action	Result
7/14/2005	1	ACTING CITY CLERK	Attest
7/13/2005	1	MAYOR	Signed
7/11/2005	1	Columbus City Council	Approved	Pass
7/11/2005	1	COUNCIL PRESIDENT	Signed
6/22/2005	1	Utilities Drafter	Sent to Clerk's Office for Council
6/21/2005	1	Utilities Drafter	Sent for Approval
6/21/2005	1	Auditor Reviewer	Reviewed and Approved
6/21/2005	1	CITY AUDITOR	Reviewed and Approved
6/21/2005	1	Utilities Drafter	Sent for Approval
6/21/2005	1	CITY ATTORNEY	Reviewed and Approved
6/20/2005	1	Finance Reviewer	Reviewed and Approved
6/20/2005	1	FINANCE DIRECTOR	Reviewed and Approved
6/14/2005	1	EBOCO Reviewer	Reviewed and Approved
6/14/2005	1	ODI DIRECTOR	Reviewed and Approved
6/14/2005	1	Utilities Drafter	Sent for Approval
6/13/2005	1	Utilities Drafter	Sent for Approval
6/13/2005	1	Utilities Reviewer	Reviewed and Approved
6/13/2005	1	Utilities Drafter	Sent for Approval
6/13/2005	1	UTILITIES DIRECTOR	Reviewed and Approved
6/13/2005	1	Utilities Drafter	Sent for Approval

Explanation

BACKGROUND: : Residual production, transportation and disposal of sludge is a continual part of the water treatment process. The lime softening sludge lagoons at the Hap Cremean Water Plant are necessary to provide storage for emergency situations, such as loss of pumping capabilities, and to allow for maintenance of basins and pumping equipment. At the start of this project, all three (3) lagoons were filled to capacity. Consequently, the integrity of the embankments around the lagoons had been compromised. This contract provides professional engineering services for geotechnical evaluation of the embankments, and for the design and preparation of contract documents for the physical removal of the sludge and improvements to the embankments. The original contract provided for engineering design for the first two phases of the sludge removal, construction administration services for the first phase of sludge removal, and geotechnical investigations. The construction work for the first phase of sludge removal has been substantially completed and the construction work for the second phase of sludge removal has been bid. This contract modification will provide for construction administration services for the second phase of sludge removal, engineering design and construction administration services for the third phase of the work which consists of embankment stabilization and earthen internal baffle construction, and additional geotechnical investigations.

CC 329.16 CONTRACT MODIFICATIONS:
1. Amount of additional funds to be expended under this modification: $850,556.01
2. The services identified to be included in this contract modification were identified in the original contract however costs for these services were not identified at that time. It was not possible to accurately estimate the costs to perform these tasks until the first phase of the work was completed.
3. The work under this contract modification is a continu...