ADMINISTRATIVE COMMITTEE

 

6.

CONSIDER EXPENDITURE FOR THE SANTA MARGARITA BACKFLUSH BASIN EXPANSION PROJECT CONSTRUCTION AND SUPPORT SERVICES

 

Meeting Date:

July 10, 2018

Budgeted: 

Yes

 

From:

David J. Stoldt

Program/

Water Supply Projects

 

General Manager

Line Item:

35-04-786004

 

Prepared By:

Maureen Hamilton

Cost Estimate:

$688,515

 

 

 

 

 

General Counsel  Review:  N/A

Committee Recommendation:  The Administrative Committee reviewed this item on July 10, 2018 and recommended ________________.

CEQA Compliance:  A Resolution to adopt an addendum to the ASR EIR/EA for this project will be presented to the Board on July 16, 2018 in advance of the request for the Board to approve this project.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SUMMARY:  Staff proposes to complete the Santa Margarita Backflush Basin Expansion Project (Project) at MPWMD’s Santa Margarita site located at 1900 General Jim Moore Boulevard (GJMB) south of Coe Avenue/Eucalyptus Road.  The Project work includes:

·         tripling the size of the existing backflush basin to accommodate backflush water from up to six Aquifer Storage and Recovery (ASR) wells,

·         replacing above-ground pipes with underground pipes to allow excavation,

·         construction of a second entrance to facilitate construction during operation,

·         and construction of a fence fronting GJMB. 

 

MPWMD advertised for bids to construct the Project on May 30, 2018.  Bids were opened on July 2, 2018.  The apparent responsible bidder with the lowest responsive bid is Granite Rock Company.

 

During construction the owner or an owner representative is required to monitor contract compliance and provide quality assurance.  Due to limited staff managing multiple projects, staff proposes to enter into a contract for engineering and construction management services for the Project.

 

The Project site is located on the Fort Ord Reuse Authority (FORA) owned Environmental Services Cooperative Agreement (ESCA) Seaside Munitions Response Area (MRA) property.  Right of Entry to construct and operate on the MRA requires unexploded munitions support services during earth disturbing work. 

 

The land to be excavated for the Project contains habitat capable of supporting migratory birds and other special status wildlife.  Staff proposes to enter into a contract for biological services to conduct surveys and relocations in order to reduce the potential for harm to wildlife during the Project. 

 

RECOMMENDATION:  That the Administrative Committee should recommend that the Board of Directors:

 

1.      Authorize the General Manager to enter into a contract with Granite Rock Company for a contract amount of $479,881, with a 10% contingency to be authorized by MPWMD staff, for a total amount not-to-exceed (NTE) $527,869.

2.      Authorize the General Manger to amend the Pueblo Water Resources Agreement for Professional Services to provide engineering and construction management services for Project construction by the amount $87,304, with a 10% contingency to be authorized by MPWMD staff, for a total amount NTE $96,034.

3.      Authorize the General Manager to amend the FORA Agreement for Professional Services to provide unexploded munitions support services for Project construction by the amount $50,195, with a 10% contingency to be authorized by MPWMD staff, for a total amount NTE $55,215.

4.      Authorize the General Manager to amend the Denise Duffy & Associates Agreement for Professional Services to provide biological support services for Project construction by the amount $8,543, with a 10% contingency to be authorized by MPWMD staff, for a total amount NTE $9,397.

 

DISCUSSION:  ASR wells must be backflushed weekly to maintain injection capacity during injection season from December 1 through May 31.  Backflush water from California American Water Company’s (Cal-Am) Seaside Middle School site is conveyed to MPWMD’s Santa Margarita backflush basin because a basin is not permitted on school grounds.  Backflush water from two future Cal-Am ASR wells will be conveyed to the Santa Margarita backflush basin because the new ASR site does not have space for a backflush basin.  The Santa Margarita backflush basin is not sized to accommodate backflush water from six wells and must be expanded.  The expansion will occur within existing approved Santa Margarita site land limits.

 

Major components of the Project must be constructed from June 1 through November 30 so that construction does not interfere with frequent backflushing operation required during injection season.  Due to the limited construction period and land constraint, the backflush basin expansion is scheduled to be constructed this summer. 

 

Construction Contract

The Project bid documents included two different fencing options in the base bid to encourage competitive pricing.  The City of Seaside, future land owner, will select the fencing option.  The contract amount will be reduced if the lower price fencing option is selected. 

 

The bid results are as follows:

 

Bidder

Bid Amount

Granite Rock Company

$591,721

Monterey Peninsula Engineering

$628,000

 

The contract amount with Granite Rock will be one of the options presented as follows:

 

Bid Form Options

Bid Amount

Including 10% Contingency

Project works with CMU fence

$479,881

$527,869

Project works with Iron fence

$468,361

$515,197

 

The contract would be awarded after Board adoption of the ASR EIR/EA Addendum for this work.  Notice to Proceed would be issued after required permits are received.  Construction contract bid details can be found in Exhibit 6-A.

 

Engineering and Construction Management Services

During Project construction, staff or a staff representative is required on-site to conduct engineering and construction management tasks including:

 

Pueblo Water Resources (PWR) has been working with MPWMD since 1998 developing, testing, constructing, and providing Operations and Maintenance services for the Santa Margarita and Seaside Middle School ASR facilities.  PWR designed this Project, is designing future works within the Santa Margarita site limits, and is the designer for Cal-Am’s future Fitch Park ASR Facility.  PWR is uniquely qualified to provide engineering and construction management services for the Project in a manner consistent with Operations and future construction projects.

 

The agreement payment terms are time and materials.  The agreement amendment will be executed only if the Project construction contract is awarded by the Board.  Engineering and Construction Management Services proposal details can be found in Exhibit 6-B.

 

FORA Munitions Support Services during Construction

The Project site is located on FORA-owned ESCA property.  The categorization of Right of Entry (ROE) is called a Type 3_C, which is the most costly ROE since it requires ongoing support and review through the duration of the construction. 

 

MPWMD is required by FORA to fund all consultant and FORA staff costs for the ESCA technical and unexploded munitions support for the pre-construction and construction activities related to the Project.  On April 9, 2014, the Board approved a Reimbursement Agreement with FORA for pre-construction support costs for the proposed Project in the amount of $24,000.  FORA has provided a time and materials estimate of $50,195 to provide Project construction support services, as described in Exhibit 6-C. 

The agreement amendment will be executed only if the Project construction contract is awarded by the Board.  Reimbursement Agreement amendment details can be found in Exhibit 6-C.

 

Biological Support Services during Construction

To avoid the loss of active migratory bird nests, Staff proposes a nesting bird survey be conducted in advance of clearing for the Project.  This practice was followed on the Monterey Pipeline and Pure Water Monterey projects as a mitigation measure to ensure nesting birds are not impacted. 

 

Staff also proposes conducting surveys prior-to and during clearing as a best practice to reduce the potential for harm to the black legless lizard (Lizard) and Monterey dusky-footed woodrat (Rat).  If Rat nests are found, the nests will be relocated after young Rats are old enough to survive independently.  If Lizards are found, they will be relocated by an experienced biologist.

 

Survey and nest relocation requires earth disturbance.  Because the Project is located on the MRA, biologists must have unexploded munitions training and must take extra care during survey and relocation.  Denise Duffy and Associates (DD&A) is uniquely qualified having provided biological services on the Pure Water Monterey Injection Wells Facilities project being constructed on the same land parcel. 

 

The agreement amendment will be executed only if the Project construction contract is awarded by the Board.  Biological Support Services proposal details can be found in Exhibit 6-D.

 

EXHIBITS

6-A – to be provided at the Administrative Committee meeting.

6-B – to be provided at the Administrative Committee meeting.

6-C – Draft FORA Agreement No. RA-031814 Amended

6-D – ASR Expansion Project Biological Support Services Proposal.

 

 

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