Garden Grove Sanitary District (District) completed the Sewer System Rehabilitation Plan (SSRP) Phase 1 in July 2017, Phase II in 2021 and the System Evaluation and Capacity Assurance Plan in 2012. The studies and assessment identified a list of replacement and lining projects with spot repairs due to pipe condition (including sags, cracks and offsets) and capacity deficiencies. Over the years, the projects categorized as severe have been constructed if feasible. The recent projects identified along with the remaining projects from Phase 1 and Capacity Assurance Plan will be constructed in the next few years beginning with the Acacia and Taft Sewer Main Replacement Project (CP No. 1387000), the Sewer System Rehabilitation Plan Phase II (SSRPP-II), and Project 1, 31, 47 & 48 (CP No. 1363000). The Acacia and Taft Sewer Main Replacement Project will replace approximately 3,761 linear feet of existing 6-inch and 8-inch Vitrified Clay Pipe (VCP) sewer main to address poor pipe condition. The SSRPP-II, Sewer Main Replacement Project 1, 31, 47 & 48 includes replacement of approximately 4,254 linear feet of 6-inch and 8-inch VCP sewer main to address poor pipe condition and capacity deficiencies.      

JIG Consultants is the engineering firm that has been selected to design sewer replacements, new sewer mains, new manholes, restoring existing sewer laterals and the repair of intruding laterals and manhole channels. JIG Consultants will generate the plans and contract documents to construct the proposed projects. The project limits are highlighted in the Location Map (Exhibit A), the streets impacted are: Taft Street, Acacia Avenue, Parking Lot at City Hall, Banner Drive, Newhope Street, Stuart Drive, Lemonwood Lane, Caltrans 22-freeway Easement, Barnett Way, Trask Avenue and Lampson Avenue. The overall length of both projects is approximately 8,000 linear feet.

Staff requested proposals from three (3) firms to provide professional engineering services. All three (3) firms submitted proposals.  A panel of three (3) members rated the submitted proposals on the basis of qualifications without considering cost.  Based on evaluation results, JIG Consultants meets the qualifications required to provide professional engineering services for this project.

The following is a summary of the ratings:

There is no impact to the General Fund. This project is included in the Fiscal Year 2023-24 Capital Improvement Plan budget, and will be funded within the Sewer Utility Fund in the amount of $495,990.

It is recommended that the Sanitary District Board:

• Award a contract to JIG Associates for professional engineering services including civil engineering design and topographic survey for the Acacia and Taft Sewer Replacement Project, the Sewer System Rehabilitation Plan Phase II,  and the Sewer Main Replacement Project No. 1, 31, 47 & 48 in the amount of $495,990; and

• Authorize the General Manager to execute the agreement on behalf of the Sanitary District, and make minor modifications as appropriate thereto.

  By:    Jessica Polidori, Associate Engineer