HomeMy WebLinkAbout7.1 Swim Center Renovation 0 CITY OF DUBLIN
AGENDA STATEMENT
CITY COUNCIL MEETING DATE: February 27 , 1989
SUBJECT Dublin Swim Center Renovation - Report
by Diane Lowart, Recreation Director
EXHIBITS ATTACHED A. Report from August E. Waegemann,
qfle(/ Consulting Civil Engineer
RECOMMENDATION • 1 . Review the report prepared by the
Pool Consultant
2 . Provide staff with input prior to
preparation of the final scope of
work and cost estimates
FINANCIAL STATEMENT : Preliminary Cost Estimate: $139 ,805-
$254,610
DESCRIPTION • In July of 1988 , the City Council
approved staffs request to retain the services of a pool
consultant to evaluate the operation and condition of the Dublin
Swim Center. The pool consultant, August Waegemann, has
completed the final report (shown in Exhibit A) and developed a
proposed plan for renovation of the facility.
It is suggested that the renovation of the swim center be broken
into two categories:
A. Temporary repairs to allow the operation of the Swim
Center during the coming swim season.
B. Permanent repairs to return the pool to a properly
functioning entity with all components operating.
Under temporary repairs, staff has summarized the recommendations
of the consultant as follows:
1 . Further investigate pool shell to isolate the cause of
water loss and seal leaks with underwater epoxy and/or
recaulking.
ESTIMATED COST: $500
2. Overhaul the boiler and heater and replace all
defective controls , parts and/or fire box as required.
ESTIMATED COST: $1 ,200-$3 ,500
3 . Replace 25HP pump and motor with two 10HP pump and
motors.
ESTIMATED COST: $8,000 (includes installation and
time clocks) .
4. Re-calibrate griswold valves and set them so that the
proper flow goes into each recirculation system.
ESTIMATED COST: $250
5. Repair or replace DE filter leaf covers.
ESTIMATED COST: $10 ,000
6 . Although not included in the pool consultants report,
staff recommends replacement of the pool covers.
ESTIMATED COST: $8 ,000-$10,000
TOTAL COST - TEMPORARY REPAIRS $27 ,950-$32 ,250
With regards to the aforementioned temporary repairs, staff
previously received authorization from the City Council to
proceed with boiler repair and replacement of the pump, DE filter
covers and pool covers. The remaining two items , sealing of
leaks and re-calibrating of griswold valves, can be accomplished
through the repair budget for the Swim Center.
ITEM NO. 7 i
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AGENDA STATEMENT - lin Swim Center Renovati
February 27 , 1989
Page Two
For long-term renovation, staff has prepared a summary of the
consultant 's recommendations as follows:
1 . Repair and/or replace skimmers and required deck work.
ESTIMATED COST: $9 ,000
2 . Line entire pool and gutter with a fiberglass lining
which will completely seal off all leaks in the pool
shell.
ESTIMATED COST: $56 ,000
3. Repair or replace deck coping.
ESTIMATED COST: $6 ,000 (Epoxy Overlay)-$18 ,000 (Tile
Coping)
4. Repair or replace entire deck.
ESTIMATED COST: $30,000 (Epoxy and Aggregate
Overlay)-$100 ,000 (New Concrete Deck)
5. Replace steel piping in the heating plumbing.
ESTIMATED COST: $500
6. Option - Install a Chlorine Factory
ESTIMATED COST: $20 ,000
TOTAL COST - LONG TERM RENOVATION $101 ,500-$203 ,500
The costs for long-term renovation, $101 ,500-$203 ,500 , warrant
further investigation by staff prior to making a formal
recommendation. Specifically staff intends to make field surveys
of pools containing fiberglass surfaces as well as research the
longevity and durability of epoxy/aggregate deck surfaces versus
concrete deck surfaces.
Based on the preliminary cost estimates included in the
consultants report , it appears that the cost to renovate the
Dublin Swim Center will fall between $139,805-$254 ,610 .
Temporary Repairs $27 ,950-$32 ,250
Long-Term Renovation $101 ,500-$203 ,500
Consultants Fee $10 ,355-$18 ,860
Presently there is $101 ,200 available in the 1988-93 Capital
Improvement Program for renovation of the Dublin Swim Center.
This represents an approximate shortfall of $38,605-$153 ,410.
Therefore staff will prepare final recommendations and cost
estimates for the renovation prior to the development of the
1989-90 update to the Capital Improvement Program.
It is staffs recommendation that the City Council review the
report prepared by the pool consultant and provide staff with
input prior to preparation of the final scope of work and cost
estimates.
AUGUST E. WAEGEMANN
CONSULTING CIVIL ENGINEER
1740 CROCKETT LN., HILLSBOROUGH, CALIFORNIA 94010 PHONE 415-342-6589
January 9, 1989
City of Dublin
•
P. 0. Box 2340
Dublin, California 94568
Attn: Diana Lowart
Director of Recreation
Re: Dublin Swim Center Village Parkway
Dublin, California
Dear Ms. Lowart:
In accordance with your request, I have made a second
inspection of the subject pool. At this time, it is evident
that the renovation of the subject project can be broken down
into two categories:
A. Temporary repairs to allow the operation of the swim
center during the coming swim season.
B. Permanent repairs to return the pool to a properly
functioning entity with all components operating.
To accomplish the objective of A. above, it will be absolutely
essential to:
1. Exclude all water from the soil surrounding the
pool, and
2 . Repair the essential components of the pool to
secure optimum operation.
In order to accomplish of 1) above, the following work will
have to be done:
A. Further inspect and determine that the two plugs in
the wading pool are truly watertight.
January 9, 1989
Page 2
B. Dye test all three expansion joints to determine the
exact point of leakage and seal with underwater
epoxy and then retest.
C. Establish by dye test, exactly which gutter cracks
leak and seal these cracks with underwater epoxy and
retest.
D. Replace all missing grout on the three skimmers and
. dye test to determine if further leaks exist.
Recaulk and seal until tight.
E. Close off skimmer #7 so it will not operate to cut
down on its leakage.
F. Dye test all inlet fittings, light niches, vacuum
fittings, main drain sump, and if leaks are
detected, seal these areas with underwater epoxy
putty.
G. Replace sump pump in the main filter pit. See
subsequent discussion.
After all of this work is done, items A through G, the pool
shell and mechanical system should be tight and can operate
this coming season. All the above work can be done by Pool
Time.
In the mechanical room, certain work must be accomplished for
this coming season's operations as follows:
A. Overhaul the Brian boiler and heater and replace all
defective controls, parts and/or fire box as
required. A specialty contractor who can do this
work is:
Larry Ely
462-3773
The cost for this overhaul can range from $1,200.00
to $3, 500.00, depending on the amount of replacement
required.
B. Contact Paco Pump Company to determine the cost of
repairing the main pump. If the current repair
costs exceed $4, 000. 00, you might want to replace
the pump and motor with one of the following
alternatives:
January 9, 1989
Page 3
1) One 15 HP pump and motor capable of 1, 150 gpm @
40 ' TDH, 1,750 RPM #5095-7 with an impeller
trimmed to 8". The cost of this pump delivered
only is $3, 008.00 and weighs 500 pounds.
with
One 5 HP pump and motor capable of 300 gpm @
40 ' TDH, 750 RPM #3070-7 with an impeller
trimmed to 7.0" . The cost of this pump
delivered only is $1,708.00 and weigh 200
pounds.
or
2) Two 7-1/2 HP pump and motor capable of 600 gpm
@ 40 ' TDH, 750 RPM #4095-5 with an impeller
trimmed to 8. 19". The cost of this pump
delivered only is $2,233.00 each and weights
310 pounds each.
See discussion under long range repairs for the
reasoning behind two motors.
Note that should you elect to install 1) above
for a total pump and motor cost of $4,716.00,
then the total installed cost, complete with
time clocks will be approximately $8,000.00.
This work will require an engineering sketch.
C. Have "Pool Time" contact the representative for
griswold valves and have them calibrate all three
griswold valves on the system and set them so that
the proper flow goes into each recirculation system.
These flow rates should be as follows:
6" pipe 525 gpm
6" pipe 525 gpm
3" pipe 100 gpm
The cost of this work should be approximately
$250. 00.
D. Install stainless steel floats approximately 8" in
diameter on the two main drain valves in the filter
pit and set them so that the main drain lines start
to open when the pit water line is 9" above the top
of the filters.
A
(170) 411
January 9, 1989
Page 4
E. Repair holes in the filter elements by gluing
patches over rips, tears and holes with epoxy
cement, silicone or PVC glue. Sewing with leader
lines is also acceptable.
F. Start up the system and adjust all inlets in the
pool to approximately 25 gpm in the shallow or
middle section; 35 gpm in the deep end and 20 gpm in
the kiddy section and wall inlets.
When all of the above is completed, the pool can operate for
the coming season with relative efficiency and performance.
2 . For a long term renovation, the following items can
be undertaken in any order desired, or can be done .
all at one time.
A. Replace piping at skimmer #7 and
repair all other leaking skimmers $ 1,000.00
B. Line the entire swimming pool and
gutter with a fiberglass lining
which will completely seal off all
leaks in the shell, both current
and future, for an approximate cost
. of 56,000.00
C. Cut 16 tile notches in the gutter
lip to reinstate the uniform
skimming action required for
healthful swimming 8,000.00
D. Tile the coping around the entire
pool as an option
Tile coping cost 18,000.00
Epoxy overlay cost 6,000.00
E. Replace the entire deck with
new concrete colored and scored,
complete with drainage 110,000.00
As an alternative, consider
patching the existing epoxy
with new epoxy and aggregate 30, 000.00
F. Replace all DE filter leaf covers 10,000.00
(:)
January 9, 1989
Page 5
G. Replace steel piping in the
heating plumbing. This steel
piping is causing the rust stains
in the existing pool. 500.00
H. Install parallel pump and time clocks
which will save approximately 40%
of the pumping energy costs 5,000.00
•
This item is strictly an option.
I. Install a Chlorine Factory which
will eliminate the liability of
gaseous chlorine and will save
approximately 2/3 of your current
chemical costs 20,000.00
This item is strictly an option.
From the above itemization, it is evident that the renovation
of the Dublin Pool can vary from $110,000.00 to $227,000.00.
In order to properly select the alternates, the pros and cons
must be analyzed and the results compared with the available
budget. In the case of the deck, a very substantial
difference ($80, 000.00) in the budget occurs. I feel certain
that an acceptable overlay on the existing deck can be found
within the $30,000.00 budget presented, but a considerable
amount of research will be required before actual prices and
comparisons can be made and presented.
The work involved will require plans and specifications and
competitive bids. I would be pleased to prepare the plans and
specifications for 8% of the lowest bona fide bid, or of the
estimate of cost based on the final plans, whichever is lower.
Should the work to be done be less than $40,000.00, then the
design fee will be 10% of the lowest bona fide bid. My
services would include inspection during the course of
construction to insure a project completely in compliance with
the plans and specifications.
If I can be of further service, please do not hesitate to
write or call.
Very truly yours,
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August E. aegemann
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