TO: Members of the Governing Board
FROM: Christopher M. Silke, District Engineer
REPORT BY: Christopher M. Silke, District Engineer
SUBJECT: Approval of a Professional Services Agreement with Geocon Consultants, Inc.
RECOMMENDATION
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District Engineer requests the following actions regarding the Wastewater Pond No. 2 Slide Repair Project:
1. Approval of a Budget Transfer to increase appropriations by $127,941 (5240, 5240500, Program 22017) with offsetting intrafund transfers-in from the Napa Berryessa Resort Improvement District’s Operations Fund Balance (52440, 5240000) (4/5 Vote Required); and
2. Approval of and authorization for the Chair to sign agreement 220325B with Geocon Consultants, Inc. for a maximum of $127,941 for the term May 3, 2022 to one year after completion of scope of services.
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EXECUTIVE SUMMARY
The storage capacity of Wastewater Pond No. 2 was impaired in late 2020 when a cut slope failed on the eastern pond bank. Several hundred cubic yards of soil slumped underneath an HPDE liner creating a bulge within the treated effluent storage pond and caused the collapse of evaporation system piping along the perimeter. A geotechnical engineer is needed to support the District in remedial steps to restore the facility to its original state and stabilize slopes averting future landslide damage. A Request for Qualifications / Proposals (RFQ/RFP) solicitation was e-mailed to qualified engineering firms on January 28, 2022. Five (5) engineering consultants submitted proposals before the March 4, 2022 deadline. Two Proponents were shortlisted for project interviews. Geocon Consultants, Inc. ranked highest amongst the group for selection. Staff recommends approval of a Professional Services Agreement effective May 3, 2022 and expiring one year following completing the scope of services.
FISCAL & STRATEGIC PLAN IMPACT
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Is there a Fiscal Impact? |
Yes |
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Is it currently budgeted? |
No |
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Where is it budgeted? |
Funds will be moved from NBRID Operations Fund Balance. |
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Is it Mandatory or Discretionary? |
Discretionary |
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Discretionary Justification: |
District could be cited by Central Valley Regional Water Quality Control Board for inoperable facility and operating permit non-compliance. |
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Is the general fund affected? |
No |
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Future fiscal impact: |
None |
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Consequences if not approved: |
Extent of damage could worsen costing the District more in restoration. |
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County Strategic Plan pillar addressed: |
Choose an item. |
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Additional Information |
Click or tap here to enter text. |
ENVIRONMENTAL IMPACT
ENVIRONMENTAL DETERMINATION: The proposed action is not a project as defined by 14 California Code of Regulations 15378 (State CEQA Guidelines) and therefore CEQA is not applicable.
BACKGROUND AND DISCUSSION
Several years of storm water runoff and percolating groundwater seeping from a toe on the bank of Wastewater Pond No. 2 led to a slope failure in late 2020 that prompted Operators and District staff to immediately isolate and dewater the facility because of instability and damage. An inspection determined the wastewater pond liner was not in jeopardy of releasing stored effluent. An evaporation system with lateral piping, risers and spray nozzles surrounding the storage pond was severed in proximity to the collapsed earth materials. The HDPE pond liner was stretched slightly but not torn and is believed to be salvageable. Temporary drainage pipe and earthwork repairs were executed to stabilize the site from further movement and to divert surface water runoff away from the slide until a permanent engineered solution is implemented by a contractor.
In late January 2022, an RFQ / RFP engineering services package detailing the Wastewater Pond No. 2 Slope Stabilization scope of work, submittal instructions and filing deadline was distributed to geotechnical engineering firms. Staff led interested parties on an optional site tour of the slide impacted area and responded to questions posed by visitors in a subsequent Addendum. Five (5) engineering consultants submitted a qualifications statement, proposed task order descriptions, client deliverables for the project and a fee proposal under separate envelope. All RFQ / RFP submittals were evaluated and scored by the District Engineer and Associate Engineer based on similar project experience, demonstrated understanding of NBRID’s technical and management requirements, Project Team credentials and engineering expertise to oversee a successful project. Two firms were contacted for interviews and given an opportunity to interact with staff in project discussions. Final deliberations by staff arrived at a decision to recommend the Governing Board approve and enter into an agreement with Geocon Consultants, Inc. for the amount of $127,941.
A standard Professional Services Agreement has been prepared by District personnel and approved as to form by legal counsel for Board signature to initiate the Wastewater Pond No. 2 Site Slope Stabilization project. A CEQA Determination Form will be filed with Napa County Planning, Building and Environmental Services Department declaring the project to be Categorically Exempt, Class 1. Project design plans and specifications will be bid in July 2022 with a recommendation for construction contract award presented to the Governing Board in August 2022.