HomeMy WebLinkAboutItem P AGENDA STAFF REPORT
DATE: June 27, 2016
TO: Honorable Mayor and City Council
THRU: Jill R. Ingram, City Manager
FROM: Jim Basham, Interim Director of Public Works
SUBJECT: EMERGENCY WATER LINE REPAIRS ON LAMPSON
AVENUE CIP NO WT1608
SUMMARY OF REQUEST:
That the City Council receive and file an update on the completion of the
emergency water line repairs on Lampson Avenue, CIP No. WT1608.
BACKGROUND AND ANALYSIS:
On the evening of Friday July 24, 2015, a water main break occurred on
Lampson Avenue at Seal Beach Boulevard. City crews responded immediately to
assess the situation. The Water Division staff determined that the water main
break was much larger than the City's resources could accommodate and
contracted with Charles King Company to make the necessary repairs. The
actual repairs took an estimated two weeks because of the amount of
excavation, multiple utility lines and a high pressurized gas line crossing the
water line.
On August 10, 2015 the City Council authorized a Budget Amendment in the
amount of $100,000 for repair costs to the broken water line. On the same day,
the Gas Company dug up the recently paved trench as emergency work due to
the possibility of a leak in their high pressure transmission line (HP Gas line).
During the excavation, the Gas Company cut through a critical Time Warner line
that prompted over 20 Time Warner trucks and crews to mobilize and repair their
line well into the night. The Gas Company determined that there may be
additional and possibly more critical leaks in their HP Gas line at this location and
would need to do further testing to determine if there are leaks, and if so, how to
repair them.
While conducting the emergency work, the Gas Company data collection
including sonar, surveys, x-rays, etc. and the subsequent in-house testing of the
collected data observed potential leaks outside the current trench boundary.
Agenda Item P
They proceeded to widen the trench approximately 3 times the original size in
order to perform some additional emergency repairs and perform further testing.
The Gas Company determined there were substantial permanent repairs needed
on their HP Gas line and ordered all necessary straps and clamps. Due to the
specialty nature of this work, the repair items are all individually fabricated to fit
the exact field need and take a long time to procure. Specialized welders are
needed to perform the work which provides an additional potential delay towards
scheduling the repairs.
The Gas Co. performed full repairs on their HP Gas line. The trench was plated
while the Gas Co. schedules sub-contractors to repair the trench.
In January 2016, the Gas Company returned to the site to conduct minor
alterations of their repairs after testing was completed.
The Gas Company was on-site to slurry and backfill the trench and temporarily
pave the surface in order to remove the steel plates while scheduling the final
paving. On February 24, 2016 the sub-contractor for the Gas Company
performed the final grind and paving of the trench for a smooth drivable surface.
The surrounding location of the waterline break has been affected by past
waterline breaks and detrimental weather which caused numerous potholes,
rutting, and raveling of the asphalt surface. Compounded with the most recent
work, staff contracted with Hardy and Harper to grind and repave the rough
surface above the City's water line on eastbound Lampson Avenue. This work
was completed on May 19, 2016.
All repair work has been completed and staff recommends that the City Council
receive and file this report.
ENVIRONMENTAL IMPACT:
This project is categorically exempt from review under California Environmental
Quality Act ("CEQA") pursuant to Section 15301, Class 1(c) of the State CEQA
Guidelines
LEGAL ANALYSIS:
The City Attorney has reviewed and approved as to form.
FINANCIAL IMPACT:
On August 10, 2015 City Council approved Budget Amendment No. 16-02-01
which allocated $100,000 from Water Capital Funds (019). A breakdown of the
expenses for the project is as follows:
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Description Vendor Amount
Waterline Repair Charles King Company, Inc. $25,023.02
.................. ..................... .................... .. .............................................. .. ............................. ..................... ..... .................. ............ ............................................................................................
Inspection Casulas Consulting Services $2,080.00
Final Paving Hardy & Harper, Inc. $13,750.00
Total $40,853.02
The funds budgeted were sufficient to complete the work. The remaining funds
will be returned to the Water Capital Funds.
RECOMMENDATION:
That the City Council receive and file an update on the completion of the
eme • -ncy water line repairs on Lampson Avenue, CIP No. WT1608.
SU: ED : NOTED AND APPROVED:
•, s 117-. Ingram, CitMager
Int:rim Director of Public Works
Prepared by: David Spitz, P.E., Associate Engineer
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