HomeMy WebLinkAboutAGENDA BACKUP 09-04-80
((sD
Central Contra Costa Sanitary District
BOARD OF DIRECTORS
N<VI1. NB -2
9/4/80
POSITION PAPER
VIA: ROGER J. DOLAN
General Manager-Chief Engineer
DATE
August 6, 1980
SUBJECT
AUTHORIZE $660.00 FOR THE PURCHASE OF CATHODIC
PROTECTION SYSTEM TEST INSTRUMENTS
TYPE OF ACTION
EXPENDITURE
SUBMITTED BENG I NEER I NG/COLLECT ION SYSTEM
ISSUE: The acquiring of test instruments would allow District
personnel to adequately monitor our cathodic protection systems.
BACKGROUND: It is most important to maintain the proper level of
cathodic protection on our steel pipelines and pump stations to
prevent corrosion failure. When malfunctions occur, the benefits
of cathodic protection are lost and corrosion is allowed to continue
which can be a considerable expense to the District. The District's
Corrosion Consultant recommended annual surveys be conducted of
our systems to assure proper operation. In the past the Consultant
has conducted some of these surveys assisted by our Engineering staff.
These surveys consist of taking voltage readings at each electrolysis
test station on a pipeline or structure with a high impedance voltmeter
and a reference half-cell. (test instrument requested) This is a
simple procedure for routine monitoring of the systems. Purchase of
these test instruments would allow the Engineering staff currently
working in the area of corrosion investigation to do this routine
monitoring without the need of a consultant. Consultant services
would then only be used when malfunctions occurred or adjustments
were found necessary. The savings in consultant fees would more than
coyer the test instruments within the first year. For example, fees
for annual surveys of the following are:
1) Port chicago & Bates Avenue Pump Station
2) 4" Natural gas service to treatment plant
$650.00
750.00
In addition to these, there are seven other pipelines to be
surveyed each year.
Required test instruments include:
1) Harco/ESD Digital corrosion potential meter
2) Current Interrupter, Nilsson
3) Test lead wire, clips and reel
$195.00
$325.00
$100.00
Tas 40.00
$660.00
cathodic protection
TOTAL COST
RECOMMENDATION: Authorize $660.00 for the purchase of
system testing instruments.
REVIEWED AND RECOMMENDED FOR BOARD ACTION
OF
e.~
<C<SD
Central Contra Costa Sanitary District
BOARD OF DIRECTORS
N\lI I. -NB-3
9/4/80
POSITION PAPER
VIA: ROGER J. DOLAN
General Manager-Chief Engineer
DATE
SUBJECT
AUTHORIZATION FOR $575 PLUS EXPENSES FOR ATTENDANCE BY
K. BARKER, CONSTRUCTION DIVISION MANAGER, AT A SEMINAR
ON BONDS, LIENS, & INSURANCE IN BERKELEY, OCT 27-29, 198
Au ust 22, 1980
TYPE OF ACTION
Authorize Funds
SUBMITTED BY
K. Barker
INITIATING De;:PT./DIV.
Engineerlng/Construction Division
ISSUE: It would be advantageous for District's Construction Division Manager
to attend a three-day Construction Seminar in Berkeley, California, on the
subject of construction bonds, liens, and insurance.
BACKGROUND: District is currently involved in construction projects and
litigation totalling several millions of dollars. Information regarding
the adequacy of District's bonds and insurance for future projects and the
role of surety companies for projects currently being litigated by District
would be available to District from these seminars. It would be advantageous
to District to obtain further knowledge through the Bonds, Liens, and
Insurance Seminar which is offered by the University of Santa Clara School
of Law. A copy of the seminar brochure is attached.
RECOMMENDATION: Authorize $575 plus expenses for attendance by K. Barker
at the subject seminar.
EVIEWED AND RECOMMENDED FOR BOARD ACTION
INITIATING DEPT./DIV. t'!.
'c'f~. CLW
((sD
Central Contra Costa Sanitary District
BOARD OF DIRECTORS
NO.
VI!. NB-4
9/4/80
POSITION PAPER
VIA: ROGER J. DOLAN
General Manager-Chief Engineer
DATE
August 20, 1980
SUBJECT REQUEST AUTHORIZATION OF REGISTRATION, TRAVEL AND AC-
TUAL EXPENSES FOR ATTENDANCE AT THE WPCF ANNUAL CONFERENCE
IN LAS VEGAS, NEV., SEPTEMBER 26-0CTOBER 3, 1980
TYPE OF ACTION
CONFERENCE EXPENSE
SUBMITTED BY
Clark L. Weddle, Deputy Chief Engineer
Engineering Dept
ISSUE: This request is for registration, travel and actual expense for
attendance at the annual meeting of the Water Pollution Control Association in
Las Vegas, Nevada, September 26 through October 3, 1980 for Roger Dolan, Clark
Weddle, Robert Hinkson, and David Niles. The estimated cost for attendance at
this meeting is approximately $875 each attendant or $3500 total. Attendance
at this meeting has been previously budgeted.
BACKGROUND: This conference offers the finest technical program in the water
pollution field. The subjects covered are diverse and offer the conference
participants the most advanced concepts and ideas available in the industry
today.
RECOMMENDATION: Approve request of Roger Dolan, Clark Weddle, Robert Hinkson
and Dave Niles for registration, travel and actual expense for attendance at
the WPCF Annual Conference in Las Vegas, Nevada, September 26 - October 3, 1980.
INITIATING DEPT./DIV.
~..a ......-~:t . ~~ J.J, IlL
CLW
REVIEWED AND RECOMMENDED FOR BOARD ACTION
A. 9.Q.t1.
RHH DN
OF
.....
WPCF CONFERENCE COST SUMMARY
Transportat i on
Airline (4 @ $196) $784
Rental Car (1 for 5 days) 175
Hotel (4 @ $240/5 days) 960
Subsistence (4 @ $175/5 days) 700
Conference Registration 473
1 @ $90
2 @ 116
1 @ 151
Subtotal $3092
Contingency 10% 309
Total $3401
(say) $3500
Average Cost
Per Person $ 875
~
-
<c(sD
Central Contra Costa Sanitary District
BOARD OF DIRECTORS
NO.
POSITION PAPER
VIA: ROGER J. DOLAN
General Manager-Chief Engineer
DATE
Se tember 4, 1980
TYPE OF ACTION
SUBJECT
APPROVAL TO AWARD CONSTRUCTION BID FOR BACK-UP
CAKE PUMP PROJECT AND AUTHORIZE $114,500 FROM
SEWER CONSTRUCTION FUNDS
Bid Award
SUBMITTED BY
John Larson
INITIATING DEPT.!DIV.
Special Project Engineering Division
BACKGROUND: Dewatered sludge cake from the treatment process is conveyed
to trucks via a cake pump and pipeline. Because there is only one cake pump
serving two centrifuges and no backup, failure of one centrifuge or the cake pump
is an emergency situation.
CCCSD puchased an additional cake pump, proposals were solicited for a formal
installation design, and Rickard & Assoc. (HRT Engineering) were selected on the
basis of their proposal. The design was completed, and construction bids were
solicited. The bid opening was September 2, 1980 with four bids received. A
low bid of $87,690 was submitted by D. W. Young Construction Co. Inc. HRT Engi-
neering evaluated the bids (spread sheet attached).
District staff estimates the total cost of the project at $120,000 (see
attached post bid pre-construction cost estimate). An amount of $5,500 has been
authorized to-date, leaving a balance of $114,500 to complete the project.
RECOMMENDATION: Award contract to D. W. Young Const. Inc. and authorize
the amount of $114,500 from Sewer Construction Funds to cover the balance re-
quired for construction contingincies and incidentals.
REVIEWED AND RECOMMENDED FOR BOARD ACTION
e..Q~~,
POST BID - PRECONSTRUCTION ESTIMATE OF COSTS
FOR
DISTRICT SEWERING PROJECT
ITEM AMOUNT
ITEM DESCRIPTION
1.
2.
TOTAL.
-
Construction Contract (As Bid) .
. . . . . . . . . . $ 89.690
Estimated Construction Contingencies
. . . . . . $
3. Estimated Construction Incidentals to Project Completion
Survey. . . $
Inspection . $ 6.000
Engineering . $ t;nn
Total Estimated Construction Incidentals
. . $ 6,500
4.
Street Resurfacing or Seal Coat
. . . . . . . . . . $
11,310
$ 6,500
N/A
5.
Total Estimate Required to Complete Project . . . . . . . . . . $ 107,500
6.
Pre Bid Expenditures
Surv~y. Engineering, Printing, Advertising
Special Services
Right-of-Way Acquisition. . . . . .
. $ 12,500
. $
. $
7.
Total Preconstruction Incidentals (as of 9/3/80 ). . $ 12,500
8.
Total Estimated Project Cost
(Items 5 & 7)
. . . . .. .. .. .. .. .. .. .. ..
9.
Funds Previously Authorized
. . . . . .. . $
10.
Total Additional Funds Required to Complete Project.
(Item 8 minus Item 9)
$ 12,500
. $ 120,000
5.500
. $ 114,500
%CONST.
CONTRACT
15.0%
7.4%
122.0%
14.3%
136.8%
2050-8-78
<((sD
Central Contra Costa Sanitary District
BOARD OF DIRECTORS
NO. VII. NB 7b
POSITION PAPER
VIA: ROGER J. DOLAN
General Manager-Chief Engineer
DATE
Augus t 22, 1980
SUBJECT
TYPE OF ACTION
DSP-3346, INFLUENT AND EFFLUENT SAMPLERS
RECO~1r'1ENDATION FOR ACCEPTANCE OF CONTRACT WORK
ACCEPTANCE OF CONTRACT
HORK
K. Barker
SUBMITTED BY
ISSUE: The Project Contractor, McCrary Construction Company, has satisfactorily
completed work and we are ready to file the Notice of Completion. The total
construction cost of the Project is $36,521.37.
BACKGROUND: On May 15, 1980, District entered into an agreement with McCrary
Construction Company for the Construction of District Sewering Project No. 3346,
Influent and Effluent Samplers.
The Contractor completed all Contract construction work on August 22, 1980,
which date was the agreed completion date plus change order extensions due to
unforeseen delay in delivery of the effluent pump and punch list work.
RECOMMENDATION: The following Board actions are recommended:
(1)
(2)
(3)
Acceptance of the Contract Hork for DSP-3346.
Authorization for filing a Notice of Completion with the Contra
Costa County Recorder.
Authorization of final payment to be made to the Contractor 35 days
after the Notice filing date if no claims are received.
REVIEWED AND RECOMMENDED FOR BOARD ACTION
INITIATING DEPT./DIV.
~~
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((sD
Central Contra Costa Sanitary District
BOARD OF DIRECTORS
NO.
POSITION PAPER
VIA: ROGER J. DOLAN
General Manager-Chief Engineer
DATE
SUBJECT
AUTHORIZE FUNDS FOR REPAIRS AND MODIFICATIONS TO
THE TREATMENT PLANT FUEL GAS SYSTEMS
Authorization of Funds
SUBMITTED BY
John Larson
INITIATING DEPT./DIV.
Special Projects Engineering Division
BACKGROUND: The treatment plant has two fuel gas systems; natural gas for
normal operation and L.P. gas for emergency operation. The natural gas
system constitutes a safety hazard because of high operating pressures and
lack of corrosion protection. The L.P. gas system cannot be used as an
emergency fuel system because of design and construction errors during
Stage SA. Work is required to place both fuel gas systems into operating
order.
The funding for this work will come from many sources: Fix and Finish
Grant Funds (Stage 5A), New Construction GraHt Funds (Stage 5Bl), and CCCSD
Sewer Construction Funds. Because of the pressing need for the proposed
work, approving the use of sewer construction funds with reimbursement from
Grant Funds as they become available is recommended.
Engineering is required for predesign and project planning.
RECOMMENDATION: Authorize $15,000 from Sewer Construction Funds for
predesign engineering and project planning.
REVIEWED AND RECOMMENDED FOR BOARD ACTION
c((SD
Central Contra Costa Sanitary District
BOARD OF DIRECTORS
NO.
VIr. -NB-5
9/4/80
POSITION PAPER
VIA: ROGER J. DOLAN
General Manager-Chief Engineer
DATE
August 27, 1980
TYPE OF ACTION
SUBJECT
AU'IHORIZATION OF $14,000 FOR 'IHE PURCHASE AND
INSTALIATICN OF A MUFFIN IDNS'IER, r-ODEL 30000-:-12-6
Capital Expenditure
SUBMITTED BY
D. G. Niles
INITIATING DEPT.!DIV.
Plant Operations
Issue: The Water Pollution Control/Reclamation Plant has been experiencing severe
maintenance problems with the existing mazzorators resulting in unacceptable costs
in both money and rnanJ?CMer.
Background: Under the tenns of the contract three mazzorators were provided to
grind up the solid particles in the sludge prior to centrifuging. These units have
proven to be unreliable and have resulted in excessive costs to the District in tenus
of dollars and manJ?CMer. As an example, during the last year the District has expended
over $20,000 in labor and parts in order to maintain these units. Additionally the
District has experienced long lead times on parts for these units. Currently two
of these units are being repaired.
Special Projects Engineering Division has investigated the problem and recarmends
the use of a muffin monster, I>b:iel 30000-12-6. Other treatment plants were contacted
in order to detennine the best type of grinder. It appears that a muffin monster
has the lowest maintenance requirements and appears to l:E considerably more reliable.
It is recarmended that one muffin monster be purchased and installed at this time.
Should the muffin monster meet present expectations, the remaining two mazzorators
ld be replaced at a later date.
cmnendation: Authorization of $14,000 for the purchase and installation of a
ffin monster.
REVIEWED AND RECOMMENDED FOR BOARD ACTION
INITIATING DEPT.!DIV.
e..~
GEN. MGR./CHIEF ENG.
CLW
____.-"lI'!'{.,.~_._ _....
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-
mUFFin monSTER
U.S. PATENT NO. 4,046,324
DISPOSABLE WASTe SYSTems. Inc.
September 2, 1980
MEMORANDUM TO: File
FROM: Nick Bane, Maintenance Superintendent
SUBJECT: MAZZARATOR - MAJOR COSTS
No. 1 Mazzarator
2 Fans on Motor
3 Impellers
2 Shafts
2 Seals and Bearings
No. 2 Mazzarator
I mpe lIe r
No. 3 Mazzarator
2 Impellers
1 Seal
Complete new unit
New Unit back at factory
(assembled wrong)
6
2
1
Impellers
Shafts
Complete Unit
@ $950
@ $350
@ $8,000
Major Parts Cost
5,700
700
8,000
$14,400
labor 206 hrs. @ $25
labor
Major Parts
+10% Minor Parts
Approximate cost for three years does not
include lubrication time, lost time for
Operations or Maintenance, and minor
repairs
5,150
14,400
1,500
21 ,050
NB:mg
Nick Bane
Maintenance Superintendent
- -JlMl>._J....alll_r - -111....i---...--uV.............aTem_...~\;..ii.i.;~1i.w/J4~.~,;;1i:.~~:i:./~.';Z;~~.:.~~'tli:'.;;lr'J:..,~ki~
MUFFIN MONSTER
GENERAL SPECIFICATIONS
The Muffin Monster shall be of two-shaft
design. One shaft speed shall not exceed
40 RPM and the other shaft speed shall not
exceed 80 RPM. The two shafts shall counter-
rotate and be equipped with cutters that inter-
mesh. The Muffin Monster body, and all parts
that may be exposed to materials to be pro-
cessed, shall be constructed from corrosion
resistant materials, and must be compatible so
as to resist corrosion due to cavitation or gal-
vanic action. The cutters shall be constructed
from 17-4 Ph steel as cast to 35-40 Rockwell
C, surface ground for uniformity.
The Muffin Monster shall be able to operate
continuously and shall not require an external
water source.
Motor shall be TEFC and moisture proof.
~:
MOTOR CONTROLLER
OPERA TION
1. Operate in a normal "ON" "OFF"
operation.
2. Sense an overload (jam) condition,
momentarily reverse to clear the condi-
tion and return to a forward direction. If
the overload has cleared, maintain nor-
mal operation.
3. If a second overload (jam) occurs, the
same schedule shall apply as for one over-
load condition.
4. If a third overload (jam) occurs within
30 seconds of the first, the unit will
reverse to release the jam, automatically
shut down, and an alarm circuit will be
energized. (Alarm not furnished.)
-
ELECTRICAL SPECIFICATIONS
1. Operating Voltage:
220/440V i: 15%, 50-60 Hz, 3
Phase.
2. Motor: 5 H.P. or less (inductive loads
only)
3. Continuous ,duty.
4. Solid State Logic Design.
5. Line Transient Protected to 1000 Volts.
6. System automatically stops operation
when low voltage condition occurs.
Start button must be depressed to
restore operation.
7. Grounding: System is designed for
operation with or without grounded
system.
8. Fuse Protection of all control logic.
9. Circuit arrangement: Internal terminal
blocks provided for line and load
disconnect.
10. Single Phase protection.
OPERATIONAL ENVIRONMENT
1. Temperature Operating Range: -100
to +600C.
2. Logic Circuitry shall be encapsulated
to insure absolute moisture-proofing.
PHYSICAL SIZE
1. Size: 10" x 8" x 6".
2. Weight: 161bs.
...'
2
-_.,,- -
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OUTSTANDING FEATURES
SANITARY OPERATION
Coarse 'entrained sol ids are sheared and
chopped, without removal from sewage chan-
nel, to a particle size that can be readily
handled by sewage and sludge pumps.
STRONG RESISTANCE TO CORROSION
AND WEAR
The Muffin Monster is constructed of supe-
rior quality, rugged materials such as:
· 2" 4140 steel Hex Shafts;
· 17-4 Ph Stainless Steel Cutters and
Spacers;
· Oversize Angular Contact Bearings;
· Mechanical Seals that can withstand up
to 60 PSI Protect All Bearings.
QUIET OPERATION AND VIRTUALLY
VIBRATION FREE
Documented Tests recorded less than 35 db
sound level.
Engineered to close tolerances for practi-
cally vibration free operation.
LOW COST MAINTENANCE AND
OPERATION
The Muffin Monster requires no daily mainte-
nance and processes a large capacity with low
power consumption.
PROTECTION OF IN-PLANT EQUIPMENT
Eliminates costly and troublesome clogging of
pumps, piping and other equipment down-
stream of the Muffin Monster.
The Muffin Monster is not just a sewage waste device. This system is being used by Chemical Refin-
eries, Forestry Services, Supermarkets, Oil Recovery Boats, and other vessels. The list of applications
is constantly growing.
3
..~.._____---..J.
25.5/8
4-1/2
At
L
3-1/2
MODEL NO.
TAB BLOCK
DIMENSIONS
ABC D E
3??oo-12-6 50-6/8 21 9-1/16 7 6
CLEAN
OUT
COVER
13.1/4
...1
DTYP
7
B
VOLUME/CAPABILITY IN-LINE CONFIGURATION
The Muffin Monster will operate continuously under heavy working conditions.
APPROX. APPROX. P.S.I
NET SHIPPING PRESSURE
MODEL GPM GPD CF/M CF/D WEIGHT WEIGHT DROP
- - -, .1L1 - 1 _._1-
30000-12- 6 600 864.000 80.22 115,516.8 380 420 0.41
660 !HI 1IJ B 800 T .1 (;0.888 1888E 1 (; 1.998.8 100 nm --..e. [; :'
l .1[,606 16 10 leee 1.446.eeO 188.8e 1 eI,4e!.I ~M 3ee 8.BT .
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