1989-051NO 99 -651
AN ORDINANCE PROVIDING FOR THE EXPENDITURE OF FUNDS FOR EMERGENCY
PURCHASES OF MATERIALS, EQUIPMENT, SUPPLIES OR SERVICES IN
ACCORDANCE WITH THE PROVISIONS OF STATE LAW EXEMPTING SUCH
PURCHASES FROM REQUIREMENTS OF COMPETITIVE BIDS, AND PROVIDING FOR
AN EFFECTIVE DATE
WHEREAS, state law and ordinance require that certain contracts
requiring an expenditure or payment by the City in an amount
exceeding $10,000 be by competitive bids, except in the case of
public calamity where it becomes necessary to act at once to
appropriate money to relieve the necessity of the citizens, or to
preserve the property of the city, or it is necessary to protect
the public health of the citizens of the city, or in case of
unforeseen damage to public property, machinery or equipment, NOW,
THEREFORE,
THE COUNCIL OF THE CITY OF DENTON HEREBY ORDAINS
SECTION I. That the City Council hereby determines that there
is a public calamity that makes it necessary to act at once to
appropriate money to relieve the necessity of the citizens, or to
preserve the property of the city, or to protect the public health
of the citizens of the city, or to provide for unforseen damage to
public property, machinery or equipment, and by reason thereof, the
following emergency purchases of materials, equipment, supplies or
services, as described in the "Purchase Orders" attached hereto,
are hereby approved
PURCHASE
ORDER NUMBER EY NDOR AMOUNT
89802 Environmental Improvements, Inc $10,000
SECTION II. That because of such emergency, the City Manager
or designated employee is hereby authorized to purchase the
materials, equipment, supplies or services as described in the
attached Purchase Orders and to make payment therefore in the
amounts therein stated, such emergency purchases being in
accordance with the provisions of state law exempting such
purchases by the City from the requirements of competitive bids
SECTION III That this ordinance shall become effective
immediately upon its passage and approval
PASSED AND APPROVED this the 18th day of April, 1989
RAY S 7 ENS, MAYOR
ATTEST
J NIFE WALTERS, CITY SECRETARY
APPROVED AS TO LEGAL FORM
DEBRA A DRAYOVITCH, CITY ATTORNEY
BY
DATE APRIL 18, 1989
CITY COUNCIL REPORT
TO Mayor and Members of the City Council
FROM Lloyd V Harrell, City Manager
SUBJECT EMERGENCY PURCHASE ORDER #89802 TO ENVIRONMENTAL
IMPROVEMENTS, INC FOR $10,000 00
RECOMMENDATION We recommend this Emergency Purchase order be
approved in the approved in the estimated amount of $10,000 00
SUMMARY This Purchase Order is for the repair of a blower
that provides the diffused air for the activated sludge process at
the South Plant We do not have a back-up blower, therefore the
emergency
BACKGROUND Purchase order copy and memorandum from Dave Ham
PROGRAMS, DEPARTMENTS OR GROUPS AFFECTED Utility Department,
Water Reclamation, and the Citizens of Denton
FISCAL IMPACT There is no additional impact on the General Fund
Res tfull/y s~~nitt
Lloyd Harrell
City Manager
Prepared by
s J HN ` MARSHALL
itle urchasing Agent
Approved
e J J MARSHALL
itle rchasing Agent
008 DOC
CITY -OF, DENTON, TEXAS •e~^90L
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P O NUMBER w if
1 DATEIIENDOR NO DoCgMENT i'~~a~ t Yf TyPi
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P O NUMBER
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DOCUMENT
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TYPE
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ACCOUNT NUMBER
UNITS NUMBER DESCRIPTION BID NO
LINEAMOUNT
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1 LT EMERGENCY RIZRAIk (LN ULUAiL4
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CITY of DffNTQN, 7AM48 216 E McK/NNEY / DENTON, TEXAS 76201 / TELEPHONE (817) 5668200
MEMORANDUM
DATE March 21, 1989
TO Robert Nelson, Executive Director
Utilities
FROM David Ham, Director C b
Water/Wastewater Utilities
SUBJECT Repair on #7 Blower-South Plant
In an attempt to smooth out operation hours being used on the #6
blower of south plant, the #7 blower was put into operation This
blower had been in operation for approximately one week While the
blower was running the Processing Technician observed on the
instrumentation board a drop-off of the air flow to the #6 and #7
basin After he noticed this problem he immediately went to check on
the blower His observations were that the blower and the out-board
bearing were very hot and in fact his comment was the bearing looked
as if someone had heated it with a rose-bud tip from a welder" It
was so hot he said that water dissipated immediately when splattered
on theiend of the blower The blower was then immediately shut down
and the other blower put back into operation This blower has surge
protection and vibration protection so that if any of these problems
arise the blower is supposed to shut down Apparently none of these
fail safe mechanisms worked The processing technician had to shut
the blower down manually Approximately two weeks prior to this time
we were concerned because the outward bearing slide of the blower was
leaking oil out of the oil reservoir so we had contacted the
representative of Environmental Improvements who is the representative
for Lamson Blower in Lewisville and he came up and assisted in
correcting this problem It turned out the only problem we had was
the oil reservoir had too much oil in it and the oil was heating and
the expansion was causing the oil to boil out of the reservoir The
cause for the blower failure at this point is undetermined, however,
with conversations we have had with representatives from Environmental
Improvements the shaft which has moved a quarter to half of an inch
towards the motor has had absolutely nothing to do with the other
situation concerning the oil Basically, they feel the result of what
occurred was caused by the blower running in an electrical surge
condition The information that I have gathered leans towards the
blower running under a surge condition, but if so, it occurred while
the blower was in operation and not during a shut down and turn on
procedure With the loss of this blower, we are in a very precarious
position Namely we have dust one blower that allows us to provide
diffused air to the activated sludge system to the south plant The
north plant blower system is independent of the south plant and that
system is a positive displacement blower system There is not a
common function between the two systems My concern is that we do not
have a back up system for the south plant It is estimated that the
cost of the repair of the blower will be $8,500 and the freight
charges $1,500 (both ways) I have done some investigating into the
possibility into purchasing a new blower and the price for a new
blower is $13,592 This is just a blower without an electric motor
It is my recommendation that we go ahead and proceed with having the
present blower repaired (estimated time of 3 to 4 weeks) and that we
also pursue the purchase of a new blower for a back up to this system
so that we will have a back up for the south plant blowers This new
blower would be purchased with bond funds We were looking at a back
up blower with gas and electric driving capabilities in the CIP 1990
to 1994, however, I do not think it would be advisable for us to wait
until October of next year to purchase this blower based on our
vulnerability I propose that we purchase the new blower using the
funds from existing CIP plan which were allocated for Innovative and
Alternative Technology in the 1989 to 1993 CIP We combined the
Innovative and Alternative Technology Program with Methane Recovery
Project for the purpose of providing a back up blower with gas and
electric driving capabilities in the 1990 to 1994 With the new
blower we would be in a better posture to provide the air that we will
need for the coming summer and still have a back up system should one
of the blowers fail Were it not for the critical nature of this
situation I would hold off with the purchase of the blower until this
next October However, I feel that we are warranted in doing this
since we are combining the projects of the Innovative and Alternative
Technology with the Methane Recovery Project We propose to purchase
the new blower and then at a later date under the auspices of the 1990
to 1994 CIP program purchase the methane gas driving system I,
therefore, strongly recommend that we repair the existing blower using
the maintenance funds in this years budget and that we purchase a new
blower for a back-up blower using bond funds from the Innovative and
Alternative Technology Project We have $27,000 in bond funds in the
present CIP (1989-1993) under the Innovative and Alternative
Technology Project