AGENDA REPORT
CITY OF SAN CLEMENTE
City Council Meeting
910 Calle Negocio
2nd Floor
San Clemente, California
www.san-clemente.org
Meeting Date: 12/20/2022 Agenda Item: 4G
Department: Utilities
Prepared By: David Rebensdorf, Utilities Director
Subject:
RATIFICATION OF EMERGENCY PURCHASES AND CONSTRUCTION CONTRACTS WITH SANCON TECHNOLOGIES, INC. AND XYLEM DEWATERING SOLUTIONS, INC. FOR CYPRUS SHORE SEWER LINING, PROJECT NO. 12209.
Fiscal Impact:
Yes. An estimated $127,000 is recommended for emergency sewer lining and bypass pumping. To fund the expenditure, a supplemental appropriation of $127,000 is recommended from the Sewer Fund Depreciation Reserve to Account No. 054-476-45300-000-12209. This emergency expenditure will reduce available fund balance to approximately $2,664,637 in the Sewer Depreciation Fund.
Expenditures to date from the Sewer Depreciation Fund, including this expenditure, for pump station operation, bypass equipment, pumps, generators, fuel and lining are approximately $1,660,627.
Additional expenditures are anticipated for temporary sewer pump station operation in the amount of $120,000 per month until it is relocated in a permanent location. Emergency expenditures may be needed in the near future to relocate the forcemain above ground if movement continues in the ancient landslide.
Summary:
To protect public health and safety due to recent movement of the ancient landslide, staff recommends the City Council ratify the emergency construction contracts approved by the City Manager with Sancon Technologies, Inc. and Xylem Dewatering Solutions, Inc. and supplemental appropriation of funds.
Background:
When the Cyprus community was developed, the collection system, a sewer pump station serving approximately 400 homes, and a portion of the storm drain system was dedicated to and accepted by the City. Due to coastal bluff movement adjacent to the Cyprus Shore Clubhouse near the intersection of Calle Ariana and Avenue de las Palmeras and to protect public safety and property, a temporary emergency sewer bypass was installed by City staff on September 20, 2021 and is currently operated by O’Connell Engineering and Construction. In addition, a bypass of the storm drain in Avenue de las Palmeras was constructed to keep storm water out of the coastal bluff landslide area.
Discussion:
Due to recent movement of the ancient landslide corresponding to slope stabilization construction by the Orange County Transportation Authority (OCTA) for protection of the railroad, City construction of the relocation of the sewer pump station within the ancient landslide has been placed on hold along with final design for the storm drain. In addition, due to the movement there is concern for failure of CITY OF SAN CLEMENTE Page 1 of 3 Printed on 12/16/2022
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Attachment 10
Meeting Date: 12/20/2022 Agenda Item: 4G
with final design for the storm drain. In addition, due to the movement there is concern for failure of the public water and sewer systems within the ancient landslide area. To minimize disruption to the residents, prevent a sewer spill, and maintain service within the community, lining of the sewer line was completed and evaluations of alternate sewer pump station operation, above ground sewer forcemain bypass pipeline, and addition sewer lining are being completed.
The first phase of the mitigation effort due to the recent movement is to protect the existing gravity sewer line at the interface of the ancient landslide within Calle Ariana north of Avenue de las Palmeras. The City Manager authorized construction contracts to install a flexible liner within the sewer line. Unfortunately, the existing clay sewer line is brittle and is subject to cracking and potential failure if extended movement occurs. The liner was installed without excavation within the existing clay sewer line (host pipe) and will become the new pipeline which will not be subject to leaks prior to failure due to the flexibility of the material. To prevent a sewer system failure, the City Manager has the authority to approve emergency contracts and purchases when there is a need to protect public health and safety per Section 3.40.070 of the City of San Clemente Municipal Code.
The estimated cost for liner installation is shown below.
Sewer Lining
Design and Administration $ 15,000
Bypass Pumping (Xylem) 18,850
Liner Installation (Sancon) 80,940
Contingency 12,210
Total $ 127,000
Plan and Policy Consistency:
The approval is consistent with the following General Plan Goals and Policies:
• Goal: Maintain and improve a comprehensive system of potable water supply, storage and distribution, and wastewater treatment, reclamation, and reuse to meet daily and emergency needs in San Clemente.
• Policy: PSFU-5.10. Wastewater System. We provide and maintain a system of wastewater collection and treatment facilities to adequately convey and treat wastewater generated in the City of San Clemente service area.
Council Strategy:
The approval is consistent with Council Strategy 3 - Update and maintain Infrastructure that reflects best available technology and service - in that Utilities is providing uninterrupted sewer and storm drainage service to approximately 400 homes within the Cyprus Shore community with temporary solutions while more permanent facilities are designed and constructed.
Recommended Actions:
Staff Recommendation
Staff Recommends that the City Council:
1. Make a finding that an emergency exists due to the potential failure of an existing sewer line and CITY OF SAN CLEMENTE Page 2 of 3 Printed on 12/16/2022
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Meeting Date: 12/20/2022 Agenda Item: 4G
that the situation requires immediate action to prevent or mitigate impairment to property and public services, that might otherwise occur if required to incur delays attributed to the typical engineering design and public competitive bidding process.
2. Declare that the public interest and necessity demand the immediate expenditure of public funds to safeguard public health.
3. Approve a supplemental appropriation in the amount of $127,000 to Account Number 054-476- 45300-000-12209 from the Sewer Fund Depreciation Reserve.
4. Ratify a Construction Contract with Sancon Technologies, Inc. for $80,940, for Cyprus Shore Emergency Sewer Lining, Project No 12209.
5. Ratify a Construction Contract with Xylem Dewatering Solutions, Inc. on a time and materials basis for up to $18,850 for Cyprus Shore Emergency Sewer Lining, Project No 12209.
Attachment:
1. Location Map
2. Construction Contract with Sancon Technologies, Inc.
3. Construction Contract with Xylem Dewatering Solutions, Inc.
Notification:
None.
CITY OF SAN CLEMENTE Page 3 of 3 Printed on 12/16/2022
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