ITEM: |
ACTION ITEM |
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12. |
Consider Approval of ADDITIONAL CONTINGENCY Funds for the Sleepy
Hollow Steelhead Rearing Facility rearing channel rehabilitation Project |
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Meeting Date: |
March
20, 2023 |
Budgeted: |
No |
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From: |
David J. Stoldt, General Manager |
Program/ |
Protect
Environmental Quality
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Line
Item
No.: |
2-3-1-L |
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Prepared By: |
Larry
Hampson |
Cost
Estimate: |
$100,000 |
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General
Counsel Review: N/A |
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Committee
Recommendation: The Finance and Administration
Committee reviewed this item on March 13, 2023 and
recommended approval and requested an update from staff at the April 10, 2023
Finance and Administration Committee meeting. |
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CEQA Compliance: Exempt under §15301 Existing Facilities. |
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SUMMARY: On November 14, 2022, the District Board
approved a not-to-exceed amount of $739,500 for contract work at the
District’s Sleepy Hollow Steelhead Rearing Facility (Facility), including
$96,500 for contingencies. With that approval, it was noted that a mid-year
budget adjustment would be required. As of early March 2023, $2,000 in
contingency funds remained due to several unforeseen conditions encountered at
the site. Because more than 30% of the project remains to be completed,
additional funds may be needed to cover additional changes that may be required.
Staff requests the Board authorize $100,000 in
additional contingency funding, which would require increasing the line item in
the mid-year budget adjustment up to $872,500 or an increase of $122,500 over
the FY 2022-23 budget adopted in June 2022.
RECOMMENDATION: The Finance and Administration Committee recommends
that the Board authorize an additional $100,000 in contingency funds for Sleepy
Hollow Steelhead Rearing Facility Rehabilitation Project (Rehab Project).
DISCUSSION: The Facility was initially constructed in 1996
and was intended to be operated on a temporary basis to mitigate for impacts to
Carmel River steelhead from water diversions until a replacement water supply
was constructed. The original construction and modifications made on several
occasions to address issues with operations have not been well documented.
Unforeseen
conditions encountered with the Rehab Project work include:
1)
Evidence
that root penetration through and under the rearing channel walls and liner was
present along about 80% of the channel; it was determined that the new French
drain used to reduce moisture under the rearing channel should be extended an
additional 100 feet to intercept any water near the headworks of the channel;
2)
The
original construction had not included a specified filler in 32 ˝-inch expansion
joints along the rearing channel walls; nearly all the joints were filled with
roots that likely compromised the liner; the rearing channel walls required
hand digging, cleaning of the joints, and placement of a sealer and patch on both
sides of the rearing channel wall at each joint:
3)
After
the existing 6-inch drain at the end of the channel was exposed, it became
clear that the proposed new French drain could not be connected to the existing
6” drain due to a vertical conflict; the French drain outlet needed to be
rerouted and extended;
4)
Some
of the underground portions of the air blower piping system showed signs of
overheating; it was determined that (more expensive) galvanized pipe (instead
of PVC) should be placed in the underground portion of the piping system;
5)
A
felt liner under the Hypalon liner was discovered that helped prevent excess
wear in key areas; construction of the new EPDM liner had not included installation
of a liner; it was determined that a liner should be installed along the new
concrete portion of the rearing channel.
Staff negotiated several changes to the contract work in order to reduce costs; however, the change orders
required to address these unforeseen conditions have nearly exhausted the
contingency funds authorized for the Rehab Project. As of early March
2023, approximately 30% of the project remained to be completed. If additional
changes are required to complete this work, the project would have to be halted
until the funding issue is resolved.
IMPACTS ON STAFF AND RESOURCES: Funds for the Rehab Project are budgeted
under Sleepy Hollow Operations Budget Program line item 2-3-1-L
Design/Construct Rearing Channel and Quarantine Tank Improvements. The FY 2022-23 budget adopted on June 20, 2022,
included $750,000 for planning and engineering and rearing channel work. If
this item is approved, the total authorized funds for the program line item would
be $872,500, an increase of $122,500 over the budgeted amount. This amount
includes up to $33,000 for planning and engineering services and up to $839,500
for the Rehab Project.
The work would be performed under the
direction of the Project Engineer.
EXHIBIT
None
U:\staff\Boardpacket\2023\20230320\Action
Items\12\Item-12.docx