1994-173AN 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 $15,000 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 or safety of the citizens of the city, or in case
of unforeseen damage to public property, machinery or equipment;
and,
WHEREAS, the City Manager has recommended to the City Council
that it is necessary to purchase goods or services due to the
following emergency conditions outlined in the memorandum attached
hereto as Exhibit "A", incorporated herein by reference; 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 VENDOR AMOUNT
47637 MUNICIPAL VALVE AND $17,500.00
EQUIPMENT CO.
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 there-in 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~day o~ 1994.
BOg CASTL~
ATTEST:
JENNIFER WALTERS, CITY SECRETARY
APP ED TO LEGAL FORM:
DEBRA A. DRAYOVITCH, CITY ATTORNEY
DATE: SEPTEMBER 20, 1994
CITY COUNCIL REPORT
TO: Mayor and Members of the City Council
FROM: Lloyd V. Harrell, City Manager
SUBJECT: PURCHASE ORDER # 47637 - MUNICIPAL VALVE AND EQUIPMENT CO.
$ 17,500.00
RECOMMENDATION: We recommend purchase order #47637 be approved in the
amount of $17,500.00 to Municipal Valve and Equipment Co. as an Emergency
Purchase.
SUMMARY: This purchase order is for the emergency purchase of a 36" plug valve
required for a project at the Wastewater Treatment Facility. The attached memo from
Glenn Gary, Engineering Associate, explains the situation in detail.
Emergency Purchases are exempt from the bid process as outlined in Texas Local
Govt. Code Chapter 252.
BACKGROUND: Purehase Order 47637; Memorandum from Glenn Gary dated
September 12, 1994.
PROGRAMS~ DEPARTMENTSORGROUPSAFFECTED: WastewaterTreatment Facility
FISCAL IMPACT: Funds for this purchase are available in 1993-94 budget account
625-082-0471-9138 Capital Improvements Wastewater Treatment Plant.
_~. spec t f, ully~s~bmit t e d :~,
(/Lloyd V. Harrell/
City Manager --
Approved:
Title: Purchasing Agent
525 oA6~ENDA
CITY of DENTON MUNICIPAL UTILITIES/90~-A Texas Street/Denton, TX 76201
TO: Tom Shaw, Purchasing Agent
FROM: Glenn A. Gary, Engineering Associate
DATE: September 12, 1994
SUBJECT: WASTEWATER TREATMENT PLANT EMERGENCY PURCHASES
On Thursday, August 22, 1994, I was called out to the Wastewater Plant to
look at the pump discharge header on the main raw sewage pump station. The
discharge header has moved and the pipe riser for pump No. 9 is leaking about
15 gallons per minute. The pipe riser section on pump No. 8 is also starting to
leak. It appears that during the new construction of the plant the total dynamic
head was changed on the forcemain. The change in head has caused the check
valves, which are non-cushioned swing checks, to slam when pumps turn on
and off. The slamming is so violent that it shakes the entire lift station, pulling
the discharge header apart. With this type of force being applied to the header,
failure is imminent.
If the discharge header breaks then the entire plant will be shutdown. Raw
sewage will discharge to the creek until the unit can be repaired, which could
result in fines from the EPA and TNRCC. There is an auxiliary pump station but
it shares the same forcemain as the main pump station. Also, there are no
isolation valves for the main pump station. Therefore, if the main pump station
is shutdown, the auxiliary station must be shut down. To fix this problem, the
project is divided into two phases. The first phase is to add an isolation valve
to the main station so that the main discharge header can be worked on while
using the auxiliary station to run the plant. The second phase is to solve the
slamming problem and to realign the pump header.
Page 2
Phase I must be done immediately or the City risks the entire Wastewater
Treatment Plant being out of service. Phase I consists of the following:
1. Purchase of 36" Plug Valve. I called the following manufacturers
to get quotes on:
a. 36" Plug Valve
Pratt does not make 36" Plug Valve
Clow does not make 36" Plug Valves.
M&H does not make 36" Plug Valves.
Dezurik - (El2) - 919,988 - 1 O-12 weeks delivery.
Keystone (Municipal Valve) - 917,500 2 weeks delivery.
The Keystone valve was the lowest quote and the best
delivery time and is on order.
b. Bv~ass pumr) around the main pump station. The only way
to cut in an isolation valve is to take the main station off line
and use portable pumps with 4-12" parallel pipelines from
the main wet well to the grit structures. I have contacted
Rain for Rent, a company that specializes in portable
pumping. The estimated cost to bypass pump the plant is
916,000. I will be receiving a firm quote soon.
c. Flanqes, butt straps and weldino. The forcemain that the
valve is to be inserted into is reinforced concrete steel
cylinder pipe made by Gilford Hill. Gilford Hill will provide
flanges, butt straps and weld the valve in. The original
estimate for this is 92,880. I am still waiting for a quote
from Gifford Hill.
Labor other than welding will be handled by in-house forces.
If you have any questions please Contact me at extension 7191.
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