ITEM: |
CONSENT CALENDAR |
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9. |
CONSIDER APPROVAL OF A CONTRACT WITH MAGGIORA BROTHERS DRILLING
FOR REHABILITATION OF TWO ASR WELLS |
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Meeting Date: |
May 20, 2024 |
Budgeted: |
Partially |
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From: |
David J. Stoldt, General Manager |
Program/ |
Water Supply
Projects ASR Operations & Maintenance |
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Line Item: |
1-2-1B |
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Prepared By: |
Maureen Hamilton |
Cost Estimate:
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$333,283.50
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General Counsel
Review: N/A |
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Committee Recommendation: The Finance and Administration Committee
discussed this item on May 13, 2024 and recommended approval. |
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CEQA Compliance:
This action is a categoric exemption from CEQA under CEQA Guideline Section
15301 for “Existing Facilities.” District will prepare a NOE for this effort |
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SUMMARY: Two Aquifer Storage and Recovery (ASR) wells, ASR-1 and ASR-2, experienced an event on March 6, 2024 that resulted in an injection capacity decline. To ensure maximum ASR water supply during this ongoing period of insufficient legal water supply, ASR-1 and ASR-2 must be rehabilitated between injection seasons this summer and fall. At the March 18, 2024 Board of Directors meeting, the Board found the ASR capacity loss constitutes an unexpected emergency situation and directed staff to obtain quotes for the rehabilitations.
Staff finalized specifications and obtained quotes from three qualified contractors to perform formal rehabilitation of ASR-1 and ASR-2, provided below:
Maggiora Brothers Drilling, Inc. |
Zim Industries, Inc. |
Weber Water Resources CA, LLC |
$302,985.00 |
$333,300.00 |
$505,077.02 |
The lowest quote was submitted by Maggiora Brothers Drilling, Inc (Maggiora). Maggiora meets the qualification criteria having performed two well rehabilitations on large injection wells in 2020-2021. Maggiora expects to mobilize the week of June 3.
Staff is requesting a 10% contingency in the event unforeseen repairs are required. Maintenance and repair work at the ASR facilities is fully reimbursable by Cal-Am per the Amended and Restated Aquifer Storage and Recovery Management and Operations Agreement executed February 23, 2021.
Staff estimates up to $70,000 could be invoiced this fiscal year, requiring a transfer of unused funds from the ASR Land Easement budget line item to the ASR Maintenance budget line item, both within the Water Supply fund. The remaining amount would be invoiced in fiscal year 2024-2025 and has been fully budgeted.
Prior to the March 6 event, process monitoring demonstrated the routine and seasonal maintenance programs at ASRs 1 and 2 were successful. The seasonal backflushing maintenance and daily site inspections during injection season showed specific injection capacity of both wells was performing as expected, and that mechanical and electrical equipment is functioning as expected. Pump assemblies, in our case extending approximately 500 feet below ground surface, are not removed unless a catastrophic failure occurs or rehabilitation is required; additional inspections will be made during the rare pump disassembly event.
RECOMMENDATION: The Finance and Administration Committee recommends that the Board of Directors authorize the General Manager or his designee to enter into a contract with Maggiora Brothers Drilling, Inc. in the amount of $302,985.00 with a 10% contingency for a total not-to-exceed amount of $333,283.50 for rehabilitation of ASR-1 and ASR-2 wells.
EXHIBIT
None
U:\staff\Boardpacket\2024\05202024\Consent
Calendar\09\Item-9.docx