Explanation
1. EXPLANATION:
This legislation authorizes the Director of Public Utilities to execute a professional engineering services contract modification with DLZ Ohio, Inc., in connection with the Olentangy-Scioto Interceptor Sewer (OSIS) Augmentation and Relief Sewer Project. This project will design and construct a large diameter conduit that will convey combined sewer overflow (CSO), along a general alignment beginning in the vicinity of I-670 and Neil Avenue, traveling south along the Scioto River to the location of the Jackson Pike Wastewater Treatment Plant.
This project was originally planned to be designed and constructed in four consecutive phases through separately procured contracts. The original scope of services for this contract required the consultant to form and convene a Value Engineering Study for the preliminary engineering report. This study, completed in the Fall of 2006, reviewed and analyzed the alternative construction methods for the project, and recommended that the project be constructed using deep sewer tunnel technology, due to this alternative's significant cost savings to the City. The report also recommended that the City incorporate the detailed design of all four phases of the tunnel into one contract. The tunnel technology was recommended as a risk and cost reducing alternative.
This contract modification will reallocate the remaining funds of the existing contract balance for purposes of undertaking the revised scope of services that will utilize deep tunnel construction methods for all four phases. The modification will include a provision for keeping the local professional engineering consulting firms of EMH&T, Inc.; CH2M Hill, Inc.; Prime Engineering, Inc.; and Dynotec Engineering, Inc., as subconsultants, all of which were part of the original contract.
Division of Sewerage and Drainage engineering personnel anticipate submitting a subsequent contract modification in the fall of 2007 for purposes of appropriating the additional, incremental funding required to allow for the incorporation of phases 2 through 4. Prior to submitting this legislation, city engineering, finance personnel and the consultant will evaluate detailed cost estimates and funding availability to determine the best, overall project construction scheduling option. This will allow the City and the consultant to establish a completed scope of service and cost estimate for the next planned proposed professional engineering services contract modification.
2. EMERGENCY LEGISLATION:
The Division of Sewerage and Drainage is requesting City Council to designate this ordinance an emergency measure in order to allow for the continuation of this work, pursuant to significantly reducing the City of Columbus's largest Combined Sewer Overflow (CSO) which occurs at the Whittier St. Storm, per the requirements of the Consent Order, executed between the City and the Ohio Attorney General's Office in 2004.
3. CONTRACT AMOUNT:
The original contract authorization amount for this contract was $5,622,070.00. This contract modification amends the scope of service to include Phases Two through Four; authorize the use of deep sewer tunnel design; and revises the subconsultant contracts. No additional funds are authorized within this legislation.
Title
To authorize the Director of Public Utilities to execute a professional engineering services contract modification with DLZ Ohio, Inc., for purposes of amending the scope of services in connection with the Olentangy-Scioto Interceptor Sewer Augmentation and Relief Sewer (OARS) Project, for the Division of Sewerage and Drainage; and to declare an emergency.
Body
WHEREAS, Ordinance No. 1354-2005 as passed by Columbus City Council on February 27, 2006, authorized the Director of Public Utilities to execute a professional engineering services contract with DLZ Ohio, Inc., in connection with the Olentangy-Scioto Interceptor Sewer (OSIS) Augmentation Relief Sewer, Phase I, Whitter Street to the Jackson Pike Wastewater Treatment Plant; and
WHEREAS, the Ohio Water Development Authority (OWDA) approved a design loan for the City of Columbus in connection with the subject project on January 26, 2006; and
WHEREAS, the City of Columbus commissioned an independent, value engineering study of the proposed project, which recommended the City to incorporate the remaining three phases with the Phase I design engineering contract; and to utilize deep tunnel construction methods; and
WHEREAS, an emergency exists in the usual daily operation of the Division of Sewerage and Drainage, Department of Public Utilities, in that it is immediately necessary to execute the subject professional engineering services contract modification for the above referenced purposes; pursuant to siginificantly reducing the City of Columbus's single, largest point of combined sewer overlfow, for the preservation of the public, health, peace, and safety, now, therefore,
BE IT ORDAINED BY THE COUNCIL OF THE CITY OF COLUMBUS:
Section 1. That the Director of Public Utilities be, and hereby is, authorized to enter into a professional engineering services contract with DLZ Ohio, Inc., 6121 Huntley Rd., Columbus, Ohio 43229, in connection with the Olentangy-Scioto Interceptor Sewer (OSIS) Augmentation Relief Sewer Project, in accordance with the terms and conditions of the Contract on file in the office of the Division of Sewerage and Drainage's Sewer System Engineering Section.
Section 2. That for the reasons stated in the the preamble hereto, which is hereby made a part hereof, this ordinance is hereby declared to be an emergency measure and shall take effect and be in force from and after its passage and approval by the Mayor, or ten days after passage if the Mayor neither approves nor vetoes the same.