Explanation
1. BACKGROUND:
A. Need. This legislation authorizes the Director of Public Utilities to modify the professional engineering services agreement with DLZ Ohio, Inc., for the Olentangy Scioto Interceptor Sewer (OSIS) - Downtown Odor Control Project. The DLZ Ohio, Inc. modification #2 the amount requested under this ordinance is $262,828.20. The contract with DLZ Ohio, Inc. was to evaluate odors emanating from sanitary/combined sewers in the downtown riverfront area, provide design services, preparation of bidding documents, and perform engineering services during construction for the odor control facilities.
The Original contract with DLZ, Inc. was to evaluate odors emanating from sanitary/combined sewers in the downtown riverfront area and provide design services, preparation of bidding documents and perform engineering services during construction of the odor control facilities.
Modification #1 was to provide funds for coordination of OARS odor control facilities into this project. It also funded Phase 2 Environmental Site Assessment, preparation of Demolition Plans and soil remediation/clean up at Short St., incorporation of landscape and stormwater/floodplain management features, and start-up and O&M training for the biofilter facilities.
This modification is required to complete construction phase design services. Specifically, temporary parking lot design (including security features coordination), site compliance plan approval efforts, contaminated soil removal supervision, additional design efforts related to discovery and disposition of unknown building foundations and abandoned tanks, and other additional services not foreseen at the time of Modification No. 1 preparation.
Amount of additional funds to be expended: $262,828.20
Original Contract $ 229,649.26
Modification No. 1 $1,214,852.97
Modification No. 2 (Current) $ 262,828.20
CURRENT PROPOSED TOT...
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