HomeMy WebLinkAboutTask Order 10222 with JUB Engineers for South Black Cat Lift Station Screening ImprovementsA E IDIAN
I D A H,,
TASK ORDER NO. n
Between
PURCHASING
AGENT
33 E. Broadway Ave, Meridian, ID 83642
Phone. (208) 888-4433 x 417
Fax: (208) 887-4813
CITY OF MERIDIAN
And
J -U -B ENGINEERS, INC.
This Task Order is issued by City and accepted by the Engineer pursuant to the mutual promises, covenant
and conditions contained in the Master Agreement between the above mentioned parties dated April 13,
2010.
SCOPE OF SERVICES
SOUTH BLACK CAT LIFT STATION — SCREENING IMPROVEMENTS
SECTION 1 - PROJECT UNDERSTANDING
The City wishes to investigate options to relieve screenings at the inlet channel of the South Black Cat Lift
Station, and implement design and construction of the necessary improvements.
SECTION 2 — ITEMS TO BE PROVIDED BY THE CLIENT TO J -U -B
• Access to the City's SCADA data
• Operational records and maintenance schedulelprogram
• Access to City operational staff to implement operational modifications listed in Task 3 1
SECTION 3 — SERVICES TO BE PERFORMED BY J -U -B
TASK 3.1 — PHASE 1: PRELIMINARY ALTERNATIVE DEVELOPMENT PHASE:
3.1.1 Screen Preliminary Alternatives:
1 � Operation Modifications: Work with collections staff to test interim operational
modifications and determine effectiveness of (i.e. raising operating levels in inlet
channel, washing screenings through the existing rack to pumps, or combination of
both). The intent is to perform these modifications concurrently with development of the
long term solutions provided below.
2. Modify Screening: The intent is to review options allowing the screen to pass all but the
larger screenings. Viability of this option will be dependent on the existing pump's
ability to pass solids during the operational modification portion (Task A.1).
a Review regulatory requirements of screening.
b Modify or replace bar rack: 1) Increase bar spacing; 2) Modify rack extension into
the channel.
c. Brief review of mechanical screening options.
d. Review screening handling and determine if modifications can be made to ease
handling of screenings.
3. Install comminutor
a. Develop conceptual layout to construct an insert parallel channel for a channel
mounted comminutor with ability to divert flow back forth from bar rack channel to
comminutor channel
b. Evaluate option to install comminutor on ogee spillway.
c. Evaluate potential to install comminutor upstream of 2"d slide gate if head loss
requirements allow.
d. Comminutor in pump suction lines ( i.e. Franklin -Miller, or JWC Environmental)
4. Pump Replacement Alternatives: Develop pumping equipment alternative such as
chopper impeller pumps or screw -centrifugal pumps to accommodate the waste stream
without preliminary screening or comminutors. Preliminary pump selections will be
made for each pump type to evaluate the potential impacts to the piping and electrical.
This phase may include site tours of similar facilities in the Treasure Valley.
5. Prepare a summary technical memorandum outlining alternatives, relative
advantages/disadvantages, and probable construction costs, and submit a draft copy
for City review.
6. Meet with the City and select the preferred alternative to advance into Task 2.
7. Final technical memorandum based on City review comments.
8. Deliverables:
a. Four(4) copies each of the draft and final summary memorandum
TASK 3.2 — DESIGN PHASE:
3.2.1 At this time, the preferred alternative selected from Task 3.1 is not known, and therefore
the scope of services and fee estimate will be revised with a separate addendum. The
potential tasks to complete these additional services will likely include the following
tasks:
1. Complete final design and prepare construction documents for the preferred alternative.
Design will include electrical modifications needed to serve the new equipment.
Controls and telemetry are assumed to be provided by the City's SCADA integrator.
2. Prepare technical specification for the upgrade.
3. Prepare a bid schedule and estimate of probable construction cost.
4. Submit 90% review plans to the City for review and comment.
5. Meet with City and revise plans to address applicable City comments.
6. Deliverables
a. Four (4) copies of 90% complete plans.
b. Four (4) copies of Final Construction plans, technical specifications, bid schedule
and opinion of probable construction cost.
TASK 3.3 — WETWELL SUPPLY AIR SUPPORT SERVICES:
3.3.1 As directed by the City, assist in the evaluation of expanding conditioned air supply to
the wetwell by adding a heating coil element to the supply ducting. J -U -B will evaluate
the existing boiler for its ability to provide the expanded supply. J -U -B will coordinate
with the City's installation contractor to generally review the proposed work scope, and
consult with the City accordingly.
TIME OF PERFORMANCE
Task 3.1 and 3.3 will be completed in a timely manner. Task 3.2 will be completed promptly after
determination of preferred alternative and processing of addendum for additional services.
COMPENSATION
The CITY will pay ENGINEER for its services and reimbursable expenses on a not to exceed basis as
follows: Task 3.1 and 3.3 refer to Attachment 1 for Total Not to Exceed Amount.
Task 3.2 will require a subsequent addendum once the preferred alternative has been identified in Task
3.1.
CITY OF MERIDIAN
BY: /
TITLE: Gt/
Dated:_ Z�C
Approved asto Co e t
BY:
KEITH ', PU CH G AGENT
Dated:
J -U -B ENGINEERS, Inc.
LBY: 41 v— A
_
Phillip H. Krichbaum, .E., P76jectUahager
Dated: .- t
O
r
S2
cD
ml m
co
LU
V
5—
w
a �
o �
y c
N d
ai d W
fN W
do
W CL 0J
5w CL
2:Q w:3
N
J Z W Y
zoo
o W r }W}
poIV ?pl
pNM V? C4
M
3
In
to
N
E
ui
a-
v
Vl 69 60 in C 69
b
d
M
>
>
40.
L
�.
d U]
cc
Um
C7 [a
Y
Ln
� �
L
p
a o
m
3
Y
m
I
a
CC
a
�. w
0
a
10
NNNr(OCIA
W
r
r r
N
.c
J H
E
m LEI
x
an
u
n
'
D
o
d
= Y
c
+-'
o
Y
C
r
LU
C C j aa)
co
W H
i
ml m
co
LU
V
5—
w
a �
o �
y c
N d
ai d W
fN W
do
W CL 0J
5w CL
2:Q w:3
N
J Z W Y
zoo
o W r }W}
poIV ?pl
pNM V? C4
M
3
In
to
N
CD ON O
O 0 4*
CO rA f0NM
Q
N
v
Vl 69 60 in C 69
b
u Y I hI I
M
�NNII�
N r
{)
Y
{
F
I
NII
Nv(0 v
10
NNNr(OCIA
W
r
r r
N
yiL
Q
d
H
z
LU
d
c
JOLUc
0
LU
C C j aa)
co
W H
i
r
a m C O N
o n S
d o
NGE1c
LW Q`.=C
aE eo
21�p
} o Q�U
3 y a t
Q o aca o.
Z d a `m
a�oS12aa)
0 CLCLM
Qom' rNf'7710It
It
r r
M r
M
ml m
co
LU
V
5—
w
a �
o �
y c
N d
ai d W
fN W
do
W CL 0J
5w CL
2:Q w:3
N
J Z W Y
zoo
o W r }W}
poIV ?pl
pNM V? C4
M
3