BOARD AGENDA MEMORANDUM
SUBJECT:
Title
Amendment No. 2 to Consultant Agreement No. A4034Ga, with GHD, Inc. for the Reverse Osmosis Concentrate Management Plan for the Recycled and Purified Water Program, Project No. 91101004.
End
RECOMMENDATION:
Recommendation
Authorize the Chief Executive Officer (CEO) to negotiate and execute a second amendment to the Consultant Agreement with GHD Inc. for the Reverse Osmosis Concentrate Management Plan-Agreement No. A4034Ga (Agreement) to provide up to $125,000 for Additional Reverse Osmosis Concentrate Management Evaluation for the Recycled and Purified Water Program, which will result in a revised not-to-exceed amount of $2,433,524 for the total amount of the Agreement and a time extension of six (6) months.
Body
SUMMARY:
On October 25, 2016, the Santa Clara Valley Water District Board of Directors (Board) approved an agreement with GHD, Inc. (GHD) for consultant services for the Reverse Osmosis Concentrate Management (ROCM) Plan, (project No. 91101004). The ROCM Plan incorporates several ongoing efforts to evaluate viable alternatives for managing reverse osmosis (RO) concentrate generated from advanced water purification facilities (AWPFs) that could potentially be built throughout the County. These efforts include projects such as the Engineered Treatment Cell (ETC) pilot project, developing the Basis of Design documents and Technical Memorandums, and hydrodynamic modeling of the Lower South San Francisco Bay (South Bay).
The scope of work includes testing of contaminants of emerging concern (CECs) that may be present in RO concentrate, as well as pilot treatment of identified CECs by advanced oxidation processes and engineered treatment cells. The testing and piloting portion of the project will be carried out in partnership with the San Francisco Estuary Institute (SFEI), University of California at Berkeley, and Stanford University. Staff is currently working with the State Water Resources Control Board (SWRCB) to negotiate and execute an agreement to secure $250,000 in grant funding. This additional funding will allow the pilot project to run through the end of December 2019, resulting in a final project report in the second quarter of 2020.
In parallel, additional studies such as electrocoagulation to address the removal of copper, nickel, and other residual metals that exist in the RO concentrate have been completed. The initial results are promising, and a second round of testing is planned. Desktop studies such as vegetated floating wetlands have also been completed and a pilot scale study will be conducted this summer (2019) to further inform the project on the issue of metals removal. At the direction of staff, GHD continues to work on various aspects of the ROCM Plan as they relate to the Countywide Water Reuse Master Plan (Reuse Master Plan). As elements of the Reuse Master Plan change, they impact both the schedule and scope of the ROCM Plan. GHD has now incorporated those changes into the Basis of Design documents. Staff is also working with SFEI to complete the hydrodynamic modeling for the lower South Bay in order to determine the potential discharge zones and blending options for RO concentrate from future AWPFs. The results of the hydrodynamic modeling will guide decisions pertinent to potential discharge locations and future negotiations with the Regional Water Quality Control Board to secure National Pollution Discharge Elimination System (NPDES) permit(s), as applicable.
Staff also held an Independent Advisory Committee meeting on May 17, 2019 to discuss the latest results from the ROCM Plan and other recycled water expansion efforts.
Amendment No. 2 to GHD Agreement
On May 22, 2018, the Board approved Amendment No. 1 to the Agreement to expand the scope and fee of GHD’s work. This amendment consisted of additional work including an increase in the size of the ETC per project goals, a 12-month project extension to December 2019, scope modifications to condense project delivery schedules, additional evaluation of alternatives and discharge options, and
revised pilot monitoring and sampling frequency to address regulatory components.
Completion of the ETC pilot study with our research partners, encumbering the SWRCB grant funding, integration of the Reuse Master Plan revisions with the ROCM Plan, and alignment of the latter planning efforts require a time extension and additional funding to the Agreement. Staff is recommending the Board authorize the CEO to negotiate and execute a second amendment to the Agreement. This second amendment would include a time extension of six (6) months and a not-to-exceed amount of $125,000 in additional funding.
The second amendment will include the following additional work:
• Consultant project management fees associated with the contract time extension of six (6) months;
• Demolition of the ETC pilot and appurtenances at the Silicon Valley Advanced Water Purification Center; and
• Additional Environmental Impact and NPDES analysis pertinent to the revised elements of the Reuse Master Plan conceptual alternatives.
The following table shows the breakdown of the Agreement, Amendment No. 1, and the proposed Amendment No. 2 (in bold):
|
Task |
Description |
Original Agreement NTE Fees |
Amendment No. 1 |
Amendment No. 2 |
Revised NTE Fees |
|
1 |
Project Management |
$111,712 |
$139,000 |
$25,000 |
$275,712 |
|
2 |
Problem Definition |
$43,058 |
$0 |
$0 |
$43,058 |
|
3 |
Conceptual Alternatives |
$65,890 |
$0 |
$0 |
$65,890 |
|
4 |
Feasible Alternatives |
$851,923 |
$687,000 |
$50,000 |
$1,5888,923 |
|
5 |
Staff Recommended Alternative |
$277,016 |
$0 |
$0 |
$277,016 |
|
6 |
Planning Study Report |
$28,648 |
$16,000 |
$0 |
$44,648 |
|
|
Travel Expenses |
$18,440 |
$0 |
$0 |
$18,440 |
|
7 |
Supplemental Services |
$69,834 |
$0 |
$50,000 |
$119,834 |
|
Total Not-to-Exceed Fees |
$1,466,524 |
$842,000 |
$125,000 |
$2,433,524 |
BOARD RECYCLED WATER COMMITTEE INPUT:
On May 20, 2019 the Recycled Water Committee recommended that the Board of Directors authorize the Chief Executive Officer to negotiate and execute a second amendment to the Agreement for an amount not-to-exceed $125,000 for additional ROC management evaluation, resulting in a new agreement total not-to-exceed $2,433,524.
FINANCIAL IMPACT:
Staff anticipates an $125,000 expenditure associated with approval of these items. Funds are available in Project No. 91101004 Recycled and Purified Water Program.
CEQA:
The recommended action does not constitute a project under the California Environmental Quality Act (CEQA) because it does not have a potential for resulting in direct or reasonably foreseeable indirect physical change in the environment.
ATTACHMENTS:
None
UNCLASSIFIED MANAGER:
Manager
Garth Hall, 408-630-2750