HomeMy WebLinkAboutStaff Report Presentation 2 12/01/2008wKtstNIA11UN
December 1, 2008
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CONSTRUCTION MANAGEMENT
The
Covello
Group
PARTICIPANTS
Owner: City of Petaluma Mike Ban
11 English Street Director
Petaluma, CA 94952 (707) 778-4487
Margaret Orr
Engineering Manager
(707)778-4589
Contractor: Kiewit Pacific Co. Clint Cole
5000 Marsh Drive Project Manager
Concord, CA 94520 (925) 516-4600
Design Engineer: Carollo Engineers Toni Patten
2700 Ygnacio Valley Rd, Suite 300 Principal
Walnut Creek, CA 94598 (925) 932-1710
Doug Wing
Designs Engineer
(925)299-6733
Environmental ESA Jim O'Toole
Management: 8950 Cal Center Drive, Bldg 3, Suite 300 Project Engineer
Sacramento, CA 95826 (707) 795-0900
Jennifer Garrison
Environmental Manager
(916)564-4500
Programmer: ArcSine engineering Doug McHaney
970 Executive Way Project Manager
Redding, CA 96002 (530) 222-7204
Steve Stewart
Lead Programmer
(530)222-7204
Construction The Covello Group
Bruce Presser
Manager: 1660 Olympic Blvd, Suite 300
Principal
Walnut Creek, CA 94596
(925) 933-2300
Ken Sinclair
Construction Manager
(925)260-2943
Ed O'Brien
Field Engineer
(925)382-1246
z
SUMMARY OF
CONSTRUCTION
• Contractor: KIEWIT PACIFIC CONSTRUCTION
Base Contract Amount (Total Project) .................................... $ 110,329,000,00
Change Orders Executed .................................................. $ 3,989,347.00
Total Contract Cost. .. — . . ................ ....... ... — $ 114,318,347,00
Contract Amount Earned ................................................... $ 109,970,686.00
Progress Payment for October 2008 (excludes retention)........... $ 1,0.57,855.00
Previous Progress Payments (excludes retention).. . . — — . ............ $ 97,916,405.00
Estimated Percent Complete. . .............. ....... -- ........................... — — 96 %
• Design Engineer: Carollo Engineers
Authorized Budget (Total Project) ....................................... $ 4354,075.00
Billings to Date..... ...................... $ 4,144,497.62
• Environmental Manager: ESA
Authorized Budget (Total Project) ...................................... $ 1,434,830.00
Billings to Date...............................................................$ 1,043,215.87
• ArcSine engineering
Authorized Budget (Total Project)..... . .... ..... ................. .... $ 2,340,951.00
Billings to Date...............................................................$ 1,984,758.63
• Construction Manager: The COVELLO GROUP, Inc.
Authorized Budget (Total Project) ....................................... $ 10,231,509.00
Billings to Date.. ... ............... ...... ......... ..... . $ 7,783,776.32
3
Schedule
Notice to Proceed
Base Contract Duration.......
Original Completion Date.. ................... - ..... ..........
Time Extension Authorized..
RevisedDuration..........................................................
Revised Completion Date., ..... ...... .......... ......
Weather Days (included in base duration) ...................
Weather Days Expended (included in time expended)
TimeExpended............................................................
Percent Time Expended.. .................... — ... .................
4
... October 10, 2005
1278 consecutive days
............... April 9, 2009
................. 67 days
..... 1345 consecutive days
............ June 15, 2009
.................... ...40 days
.... 82 clays
.........11...........11...... 1117 Days
......I........................... 83%
Construction Manager's Summary
1. Schedule
The project remains on schedule for completion by .tune 2009.
2. Work Progress
Oxidation Ditches
The strategy field testing was completed on the aerators in both basins. This testing
demonstrated that the SCADA system will operate the facility as intended.
Secondary Clarifiers
The strategy field testing was completed on the clarifier mechanism and the scum pumps
for both basins.
Main Electrical Building
Minor corrective work was completed during the month.
Headworks Facility
The painting of the piping and equipment at the headwork's continued throughout the
month.
Fiberglass enclosures were set in place over the bar screens. These enclosures will cover
the bar screens and openings in the deck around the bar screens to contain odors from the
influent channels.
Preliminary testing of the wiring for all the equipment in the headwork's area was started.
This will determine if each wire was properly installed and tenninated in the correct
location.
Screw Press Building
In the screw press building, installation of small diameter pipe continued for most of the
month. The load cells that will be used to measure the amount of solids at the cake
pumps were installed. Work also continued on the installation of electrical conduits and
pulling and terminating wires for the equipment in the building.
Methane Digester
Installation of ductile iron piping at this facility was completed. Coating of the installed
piping continued through the month. Work on the installation of electrical conduits and
pulling and tenninating wire continued throughout the month.
Acid Digester
Coating of the installed piping continued.
Boiler Building
Pulling and terminating wire for the equipment in the building continued. Installation of
the small diameter piping in the building also continued during October.
Thickener Building
Pulling and terminating wire continued throughout the month.
Biofilter
The fans for the odor control system were tested in October.
Operations and Maintenance Building
Completion of punch -list activities continued.
Filter Support
The acoustical panels were installed in the blower room of the filter support building.
Tertiary Filters
Coating of the pipelines at this facility continued throughout the month.
UV Disinfection
There was no work at this facility during the month.
Recycled Water Pump Station
This facility has been put into operation.
Wetlands Planting
During the summer, cattails have grown in the mitigated wetland. These plants are
considered invasive and were cut down in cell D of the polishing wetlands and in the
mitigated wetland. This fall, additional plantings will be necessary in the mitigated
wetland to satisfy permit conditions. A revised planting plan has been prepared and is
being reviewed.
As needed, water was pumped from Pond 9, through the Wetlands Pump Station to the
Polishing Wetlands to maintain necessary water levels in those ponds for plant growth.
Site Landscaping
Work continued on the installation of the irrigation pipe at several locations around the
site, mainly along the west access road and around the operations and maintenance
building.
Site Paving
Paving was completed this month.
Polishing Wetlands
Throughout the month, header boards were replaced and aggregate material was placed
for the trails around the 4 polishing wetland cells.
Existing Chlorine Contact Basin
The tie-in for the new 26- inch pipeline at the chlorine contact basin was completed.
Installation, backfill and testing of storm drain piping and catch basins were completed.
Header board and aggregate base material were installed in preparation for paving the
area.
3. Contract Changes
Nineteen (19) Change Orders executed this month totaling -$9,646.00. Three hundred
fifty five change orders have been executed to date with a combined value of
$3,989,347.00 The change orders greater than $10,000 executed this month are as
follows:
Relocation of Drain Lines at Biosolids Load -out Slab
10,201.00
Bond and Insurance Over -Billing
The Contract Documents allow for a maximum of 2.5% to be added to a
change order for additional bond and insurance costs. The actual value to be
used is to be based on the Contractor's actual costs, substantiated through
submitted documentation. Early change orders were prepared using a factor
of 2.5%. The documented actual factor is less than the allowed maximum
value. This change order adjusts the bond and insurance mark up on the
earlier change orders from 2.5% to the documented rates.
06 I i .' 00 a
4. Field Orders
Twelve
new field orders were prepared this month. 'Two -hundred twenty five field orders
have been prepared for the project. Of those, ninety-four remain active with a total
estimated value of $732,288.00. Active field orders for general changes greater than
$10,000 are as follows:
FO
No.
Description
Amount
96
Headworks, Relocation of Local Control Stations and JBs
$65,063.00
106
CCB: Addition of Drain Vault Float and Clarification on Heat Trace Controller
$15,000.00
110
Handrail at Oxidation Ditch 1 and 2 North Bull nose
$10,000.00
111
Handrail Post Pockets at Headworks
$25,000.00
113
HVAC Modifications at Filter Support, Thickener & Screw Press
$10,000.00
117
Modify Solids Handling Slab
$22,000.00
134
CCB Wash down System
$50,000.00
145
Existing GCB Piping Modifications
$30,000.00
173
Ops Bldg: Canopy Hood Single Speed Motors
$10,000.00
177
Level Switches at RWPS Cans
$15,000.00
182
Additional Grading at RWSB — Build Up Petals
$20,000.00
183
Waste Gas Flare Modifications
$15,000.00
200
CCB Paving/Grading Modifications
$40,000.00
201
West Access Road Sidewalk Demolition
$10,000.00
202
RWPS 3W Supply Modifications
$10,000.00
204
Entry Road Sidewalks
$40,000.00
207
West Access Road — Entrance Conduit Protection
$12,000.00
216
Life Ring Cabinets
$10,000.00
221
Motor Operated Gates in Fences
$10,000.00
225
East Flood Protection Berm
$75,000.00
Total Active Field Orders < $10,000
$238,225.00
5. Testing
Pipe was pressure tested and compaction testing completed as needed throughout the
month.
Testing of the controls systems as noted in items above were completed this month.
6. Anticipated Work for Neat Month
Mass Electric will continue pulling wire and completing terminations at many facilities
throughout the site including the headworks, methane digester, acid digester, boiler
building, thickener building and the waste gas flare area.
Strategy field-testing to confirm the operation of the control programming is scheduled to
be completed on the equipment at the headworks including the bar screens, gates and grit
system.
Installation of piping will continue in the solids handling area of the plant. We are
approaching the completion of all the piping on the site. It is anticipated that the
connection to the existing pipeline from the Pond Influent Pump Station (PIPS) at Hopper
Street will be in November. Once this tie in has been completed and necessary testing
completed on the headwork's, oxidation ditches and secondary clarifiers, raw sewage can
be introduced, anticipated for December.
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SUBMITTAL STATUS
FIELD ORDERS
Total Cost of
Total October Active Active Orders
Field Orders Issued 225 12 94 $732,288.00
IN � � s _ ° �
Total October
Value of Change Orders Executed in October 19 -$9,646
Value of Change Orders Executed to Date 355 $3,989.347.00
Percent to Date of Original Contract 3.62%
WEATHER RELATED DELAYS
Days
Base Contract Allowance 40
Weather Related Days in October 0
Weather Related Days to Date 82
N
Received
To Date
October
Returned
Pending
First Time Shop Drawing Submittals
996
3
394
2
Request for Information
1511
9
1509
2
G M. Request loot Information
2.55
3
255
0
FIELD ORDERS
Total Cost of
Total October Active Active Orders
Field Orders Issued 225 12 94 $732,288.00
IN � � s _ ° �
Total October
Value of Change Orders Executed in October 19 -$9,646
Value of Change Orders Executed to Date 355 $3,989.347.00
Percent to Date of Original Contract 3.62%
WEATHER RELATED DELAYS
Days
Base Contract Allowance 40
Weather Related Days in October 0
Weather Related Days to Date 82
N
Kiewit performed the 8 hour Functional test on the Aeration Equipment in the
two Oxidation Ditches.
Kiewit performed the Field Order work to fix the pipe between Oxidation Ponds 2 & 3.
10
Kiewit Subcontractor O.C. Jones completed the paving at both the Main Plant
and existing Chlorine Contact Basin access road and structure area.
Kiewit Subcontractor TD Williams started placement of the pipe saddle for the
hot tap into the existing 36" sewer main south of the Headwork's building.
Kiewit's Grading crew worked on the placement of the storm water berm along Polishing Pond Cell
A. The berm runs from Lakeville highway to approximately the center of Polishing Pond Cell D
12
Ellis Creek Water Recycling Facility
CONTRACT CHANGE ORDER TRACKING SHEET
CCO #
Description
Amount
(Days)
1
Time extension for additional soil sampling
0.00
8
2
Lime treatment at Ox Ditch & Secondary Clarifiers
125,000.00
3
Board up Farmhouse
3,385.00
4
Hay Stacker Relocation
493.00
5
Terrorism Insurance and Increased Earthwork
0.00
6
Meter in Temporary Recycled Water Pipeline
3,023.00
7
Temporary Power for Pond 1 Aerators
1,270.00
8
Pavement Repair on Cypress and McDowell
419,681.00
9
Conduit Encasement Coloring Agent
10
Delayed Caltrans Encroachment Permit
16,723.00
11
Trench Cut -Off Walls
18.(soo Oc))
1
12
Horizontal Aerators Extended Warranty Testing
0.00
13
Deletion of Prime Coat under AC Pavement
(29.700 00)
14
Replace PVC Sched. 40 with EB 20 Conduit in DB
(21, r r4 ou)
15
Delete Lakeville Highway Access
40,000.00
16
Contract Time Extension for Weather Days 03-04/06
0.00
38
17
Change Valve Types
0.00
18
Replace EMT conduits by MC cable no, O&M Bldg
i 19.777 00)
19
Inverter Duty Motors at Oxidation Ditch Aerators
16,466.00
20
Aerated Lagoon and Pond 1 Modifications Milestone
0.00
21
Additional Striping and Loops on McDowell
13,747.00
22
Catch Basins Invert Changes
i9,9W 00)
23
Oxidation Ditch Sump Modifications
( 7,750.00)
24
Change Buried Conduits PVC GRS to PVC Sch, 40
2I LW 38,00}
25
Temporary Power to Existing Aerators 4 and 7
7,956.00
26
O&M Bldg: Ceiling & Wall Heights Rms
4,287.00
27
Provide Portable Generator Pads at Ponds
2,554.00
28
FS Bldg: Extend Conduit Stub -ups Beyond Ductbank
9,190.00
29
Headworks: Handrail Extension to Complete Deck
1,254.00
30
Pond 4 Aerator Temp Power
883.00
31
Aerated Lagoon: Reconnecting of Aerator No. 2
537.00
32
Unknown Utility at Pond 1 North Side
855.00
33
Ductbank Encasement with Reinforcing
24,884.00
34
Gun Safe for Storage of Bid Documents
2,410.00
_
35
S&C Pad Mounted Switch Additions
75,200.00
36
Permanent Power Supply for Pond 1 Aerators
98,000.00
37
Temporary Fire Hose
851.00
38
Change material for Temporary Debris Collector
(36 150 00)
39
Chemical Tank Pads (c)y Filter Support Bldg
4,425.00
40
Disconnect Aerator No. 2 & reconnect Pond 4 Aerators
607.00
41
Delete Steel Steps in Manholes
119,012 00)
42
Add 4" Butterfly Valve in Acid Digester
1,189.00
43 Delete Pre -Action Fire System (a) Main Elect. Bldq 1 19,242.001
13
CCO #
Description
Amount (Days)
44
Headworks Influent Box Modifications
3,000.00
45
Transformer Pad at Restroom
9,498.00
46
Addition of Construction Joint at Oxidation Ditch Slabs
23,505.00
47
Change Conduits from PVC Rigid Steel to PVC Sch. 40
0I> jtt r
48
Reader Board & Geogrid placement (a) Cypress/McDowell
6,000.00
49
Plant Control System PLC Architecture
(e, ? 18 00)
50
Grit Pump Room Sump Pump Modification
1,326.00
51
PLC Enclosure Size for PLCs 2, 3 and 8
5,446.00
52
Additional Time Switches at O&M Bldg.
2,722.00
53
Extension for Pond 1 Aerators Milestone Date
0.00
54
Levee Repair at Berm Existing Ponds 8 & 9
289,279.00
55
Operations Bldg. Maintenance Window
1,022.00
56
In-Plant Pump Station Wall Penetration Details
2,807.00
57
Alignment of 42" RSG line to Headworks
4,208.00
58
Revision of Structural Joints at Headworks Facility
5,628.00
59
Pond 9 & 10 Levee Pothole
1,400.00
60
Add pipe for Future Pump Can (7 RWPS
6,316.00
61
Home Inspection of Farm House
746.00
62
Alignment of 42" PWE line to Cell D Transfer Structure
8,171.00
63
Delete Locks on Motor Operated Overhead Coiling Doors
(38') CIO
64
Dewaterinq of Pond 8 and Mitigated Wetland
3,488.00
65
UV System Programming
2,777.00
66
Septic Tank Removal at Farm House
739.00
67
Changes to Slide and Sluice Gates
11,17200
68
PLC System Material for C Street Pump Station
14,915.00
69
PLC - 10 Analog Input Module
1,873.00
70
Change Storm Drain Pipe from RCP to CHDPE
(J^d 1913 0u)
71
Deletion of CMU Coating on non-occupied structures
t? 5'+8 NII
72
Existing Utilities at West Access Road Entrance
8,543.00
73
Change Handrail for Polishing Wetlands Structures
6,965.00
74
Change SDR for HDPE Pipe Lines
(52 115 00)
75
Addition of waterstop in wall (a) Filter Support Bldg.
1330.00
76
Delete waterstop & starter walls (a) HW, RAS PS, UV
(11 ?W 110)
77
Re-Power Pond Aerators, Reconnect Aerated Lagoon
3,718.00
78
Contract Time extension for Weather Days 10/2006
0.00 1
79
Deletion of waterstop and starter walls at Tertiary Filters
i i . 38 i 00)
80
Add waterstop at Grit Pump Area of Headworks Structure
6,167.00
81
Fuel Tank Removal at Farmhouse
2,972.00
82
Revised Anchorage for Oxidation Ditch Aerators
40,941.00
83
Deletion of Integrated System Shop Testing (ISST)
0.00
84
Additional Dowels at Maintenance Bldg.
914.00
85
Replace Fuses at MCC 3A after PG&E power spike
1,706.00
86
Remove and replace disconnect switch (a7 Aerated Lagoon
2,919.00
87
Lower Invert Elevation for 42" RSG Line
18,726.00
88
Addition of Roof Hatch @ Main Electrical Bldg.
3,195.00
89
Filter Support Bldg: NG Connections and Valvinq
1,361.00
90
Chain Link Fence addition (a) Farmhouse
725.00
91
Repair Irrigation Lines (cD Kaiser
1,186.00
14
CCO #
Description
Amount
(Days)
92
Demo of Spillway at Pond 10
12,109.00
93
Curb and Grading d),, Filter Support Bldg
0.00
94
Irrigation System: Concrete Valve Boxes
2,393.00
95
Contract time extension for Weather Days 11/06
0.00
5
96
Mitigation Wetlands Drain
4,370.00
97
Additional vinyl sheets for Levee Repair (ai berm Pond 8 & 9
5,498.00
98
Shoring @ Naval Trail
21,271.00
99
Extra excavation (a) W Access Rd. for 12" 1W line
8,008.00
100
Replace SBS line (cb. Chlorine Contact Basin
5,936.00
101
Brush clearing (a) Farm House
5,209.00
102
Relocate standby Generator (? CCB
2,005.00
103
Drywall Furring (aD Elect Rm #2 in O&M Bldq.
1,630.00
104
Equipment for MCC-3 retrofit
25,360.00
105
Perimeter lighting switching (a)_ Main Elec. Bldq.
1,795.00
106
Wiring for Time-Off Relay (a? Wetlands Elec Bldg,
2,282.00
107
Changes to SCADA interface Boiler & PLC 3
3,549.00
108
Disposal of existing MCC 3 transformer
2,141.00
109
Contract time extension for Weather Days 12/06
0.00
7
110
Tree removal @ W Access Rd.
1,419.00
111
Deepening Pull Boxes (6} Ox Ditch MCC Bldg,
11,540.00
112
Rebar modification (a() Wetlands Pump St Deck Beam
2,187.00
113
Electrical Equipment Pads
9,018.00
114
Delete Catch Basins at W Access Rd.
1,746.00
115
Naval Bldg Lookout Area
3,000.00
116
Changes to TWE and PWE lines
0.00
117
Polishing Wetlands FSS: Add Hand Switch
3,444.00
118
Engineering of Anchorage P Oxidation Ditch Aerators
'u,(3t t s et )
119
Replace Oxygen Probes @ Aerated Laqoon/Pond 1
13,411.00
120
Change Piping Material for Deionized Water Service
0.00
121
Filter Support Bldg: Relocation of 1W Line
4,568.00
122
Security Lighting at Farmhouse
1,200.00
123
Disposal of Asbestos Containing Pipe
2,087.00
124
Investigation and Disposal of FAA Building
20,512.00
125
Conduit addition (� Boiler Bldg.
15,780.00
126
O&M Bldg: Exhaust fans power supply & controls
34,440.00
127
Addition of Disconnect Switches (aD Headworks
25,143.00
128
Level Transmitter addition (aHeadworks
23,058.00
129
Contract Time extension Weather Days 01-02/07
7
130
Subgrade Improve & Pipe Encasement (a) W Access Rd.
12,128.00
131
Additional Conduit for Fuel Leak Detection
2,714.00
132
HVAC Enclosure Modifications (a) Ops Bldg.
8,014.00
133
Wiring of Spare I/Os
45,713.00
134
PLC Enclosure Size for PLC 5
7,823.00
135
Partial Payment for PLC Enclosures
0.00
136
Trench Backfill with Native Material
72,000 00
137
UV Bldg Top Slab Modifications
14,000.00
138
Ops Bldg: HVAC Electrical & Mechanical Modifications
2,854.00
139
24" Pumped Storm Drain Line Coverage
30,000.00
15
cCo #
Description
Amount (Days)
140
Metal Siding @ Main Electrical Bldg.
5,071.00
141
Contract Time Extension for Weather Days April 2007
1
142
Ops: Relocate HVAC duct transition @ Locker Rm Ceiling
878.00
143
Use of Native Material for backfill @ North & Middle Cluster
n,Itt I"It�p
144
Recycled Water Storage Basin Size Increase
220,867.00
145
Outlet conduit replacement (a) Existing CCB
1,260.00
146
Modify Rebar Expansion Joints @ Thickener Bldg
1,610.00
147
Modify Grating Seat @ Headworks Beam B-13
1,737.00
148
Added Space Heater for PLC 8 - RIO 1
1,803.00
149
Additional G2 Light Fixture @ Ops Bldg Lobby
2,013.00
150
Connection Grounding Bldg rebar @ MCC HW Bldg.
974.00
151
Relocate supply line fire riser @ maintenance Bldg.
3,027.00 f
152
Pipe material for 36" mixed liquor line @ 2ndary Clarifiers
14,271.00
153
Modifications HVAC Pads
9,562.00
154
Mod per PG&E Requiremnts to Main Power Supply
19,886.00
155
Addition of Wall Sleeves at Thickener Building
847.00
156
Reduce Deck Slab Openings @ Wetlands Pump Station
782.00
157
Wall Supports for Pony Wall at Laboratory
2,162.00
158
Concrete Encase HCS pipeline @ Headworks Structure _
2,393.00 _
159
Convert Conference Rm into 2 Offices @ Ops Bldg.
_8,351.00 J
160
Concrete Backfill around Screw Press Equipment Trench
1,588.00 J
161
Expansion Joint Rebar @ Headworks Grid Line 10
1,151.00
162
Standby Generator Connection @ Wetlands PS
13,527.00
163
Deletion of Rotameters @ Tertiary Filters
I,W'i 00
164
Blockouts for Ox Ditch Aerator Anchorage
1,022.00
165
Concrete Encase SD pipe under HWE pipeline @ HW
1,657.00
166
Temporary Power for Transformer @ Aerated Lagoon
28,343.00
167
Rebar @ Headworks Manual Bar Screen Embed
756.00
168
Subgrade Improvement for Wetlands PS Apron Slab
11,799.00
169
Screw Press Bldg Skylight Size Change
3,465.00
170
Additional 1/0 from Power Panel to PLC -9
2,887.00
171
Standby pump @ existing CCB during work @ Pond 10
44,000.00
172
Billing for Potable Water Usage on site through 4/4/07
1,552.00 J
173
Upgrade starters for Ox Ditch Aerator Motors
78,373.00
174
Blind flanges for future effluent line @ Aerated Lagoon
11,709.00
175
Remove rebar @ Ox Ditch Aerator Motor Block-outs
3,000.00
176
Modification of controls for Tertiary Effluent Bypass Valves
1 U i "� 110)
177
Communication between PLC -8 & Thickener PLC
2,032.00
178
Automated 1W Valve @ Recycled Water Storage Basin
46,267.00
179
Modification to HW Bar Screen Channels
6,130.00
180
Relocate Fire Pump Can @ RWPS
4,613.00
181
Add Effluent Conductivity Probe @ JB No. 2
9,680.00
182
Revise DB Routing @ Ferrous Chloride Area
2,463.00
183
Ventilation Alarms @ Boiler Bldg & Thickener Bldg
20,526.00
184
Anti Graffiti Coating @ O&M Bldg and Sound Wall
28,736.00
185
Deletion of Louvers @ HW Bar Screen Enclosures
(I 3/l tart) 1
186
Deletion of Combination Smoke Fire Dampers
18 001) (10) f
187
Fire Rating Janitor Closet Door @ Ops
1,841.00
16
CCo #
Description
Amount (Days)'
188
Brush clearing (a) Farm House fire season 2007
3,186.00
189
Ops: CMU alignment & wall cap (a) HVAC enclosure
1,826.00
190
Ops: addition acoustical ceiling @ electrical rm #1
3,125.00
191
Ops: framing details for Lobby
2,163.00
192
RWPS: modified floor drainage
15,107.00
193
Ops: beam seats in CMU wall pockets
10,067.00
194
Recycled Water Storage Basin Berm Modifications
(_j !s95 00)
195
Double Containment System Modifications
90,172.00
196
Site Security Lighting Estimation Cost
10,364.00
197
Grading (a) Mitigation Wetlands & RWSB
27,012.00
198
PG&E power connection (a) W Access Rd.
55,335.00
199
UV Disinfection Light Pole Mounting Detail
7,027.00
200
Ox Ditch Light Pole Mounting Detail
8,852.00
201
Existing CCB: power to New Chemical Metering Pump
8,588.00
202
Screw Press grating (ai) Flocculation Tank Opening
1,969.00
203
Anchorage of Diffuser Pipe Ponds 9 & 10
32,659.00
204
Acid Digester changed detail wall penetrations
4,286.00
205
Existing LPN panel in chemical bldg.
2,576.00
206
Revised Details (a) RWSB
20,881.00
207
Ops: Deletion of Closet in Control Room
(932 00
208
Ultrasonic level sensor mount (a) Headworks
1,208.00
209
Mitigation Wetlands Drain - Permanent Installation
75,048.00
210
Ops Bldg: Plumbing Dwqs
29,571.00
211
Ops: Deletion of decking @ Mechanical Chases
1,719.00
212
Headworks: channel floor rebar modification
1,696.00
213
Ops: Furring Men's Restroom Urinal Wall
740.00
214
Informational Kiosks: Addition of 2" PVC 40 Pipe Sleeve
2,560.00
215
Screw Press: Modifications to Underslab Piping
2,607.00
216
Below Grading Coatings
72,507.00
217
Aerated Lagoon: Unknow utility (a?_ 20" URW Alignment
5,225.00
218
Ops Bldg: Additional Window Clips
3,194.00
219
Silt Fence Repair
1,209.00
220
Ops Bldg: control rm. Backing & wood blocking
2,185.00
221
Ops Bldg: Modifying Welding Studs to 1/8" Tubing
5,293.00
222
Pond 10 Apron Slab: Over Ex, Fabric, and Rock
3,870.00
223
Addition of Solenoid Valve (a-) Recycled Water Surge Tank
5,095.00
224
Thickening Walls Co Ox Ditch Aerator Shafts
11,286.00
225
Relocate Receptacles (a) Biofilter Mechanical Pad
3,286.00
226
Equipment Pad Modifications Co Screw Press
5,130.00
227
Footinq Elevation @_ Filter Support Bldg. Tank Farm
2,098.00
228
Relocation of Cell D Transfer Structure
5,162.00
229
Pipe Elevations & Drainage Swale (a) Polishing Wetlands
1,938.00
230
Farm House: Plywood Cover (a) Back Entry
756.00
231
Methane Digester construction joint location & piping
1,057.00
232
Ops Bldg: Icemaker Legs
893.00 J
233
Acid Digester: Overflow Piping Modifications
1,727.00
234
West Cluster: Sitework & Grading Change
277.00
235
Ops Bldg: Future access control conduit stub -outs
1,720.00
17
CCo #
Description
Amount (Days)
236
Ops Bldg: Interior lights & furring strips
2,292.00
237
Potholinq & Excavation existing utilities @ CCB
42,606.00
238
Replace Farmhouse Roof
34,194.00
239
SCADA: TWAS sump level set points
1,682.00
240
CCB: Relocation of Ammonia Tank
17,176.00
241
Add wire way in PLC 6 @ Existing Chemical Storage Bldg.
1,775.00
242
Replace Landscaping on Kaiser Property
2,690.00
243
Electrical Modifications @ UV Bldg.
47,188.00
244
Headworks: Rebar Detail (a, Channel Wall Ends
1,625.00
245
Rebar @ Screw Press Bldg. Slab Extension
1,625.00
246
Tertiary Filter: 12 Inch Inlet Line
17,248.00
247
Ops: Modifications to Fume Hoods
{.1 O 00 i
248
Ops: Addition of Compressed Air @ Laboratory
22,641.00
249
Ops: Training Room Modifications
8,494.00
250
Emergency Repair Kit Deletion
{tib? Ool
251
Increase Cover Over 14 inch Foul Air Line
1,972.00
252
Headworks: Epoxy Coat Rebar @ Block-outs
20,579.00
253
Relocation of Mezzanine Column C@ Screw Press
3.225.00
254
Additional Rebar @ Oxidation Ditch
1,348.00
255
Pipe Class Acid Gas & Methane Gas Pipe
(h 089 DO)
256
Modifications to the Potable Water System
105,856.00
257
Thickening Bldg piping modifications
764.00
258
Catch Basin grating modification @ W Access Rd. culvert
4,950.00
259
Headworks FRP grating support @ Gate location
2,219.00
260
Digested Sludge Storage Tank: Piping Modifications
4,828.00
261
Modifications to Analyzer Enclosures
9,315.00
262
Additional Conduits & Wires Miscellaneous Areas
41,620.00
263
Planting modification (a) West Access Rd.
2.328.00 _
264
Install Clapper Rail Trail Gate
2,687.00
265
Amphitheater seating next to Polishing Wetland Cell D
29,577.00
266
Ferrous Chloride- revised electrical & pump pad
24,552.00
267
Chip Down Top of Wall (a) Filter Support
3,411.00
268
Conduits for Future Mixer (55) CCB
11,320.00
269
Modifications for Interfacing between PLC 6 and PLC 11
5,800.00
270
Headworks Deck Slab Falsework
26,026.00
271
Dewatering of Pond 8
20,157.00
272
Pressure Gauges @ Wetlands Pump Station
4,110.00
273
Irrigation Changes @ Point of Connection
24,050.00
274
Filter Support: 4" chemical drain elevation
872.00
275
Unknown Utilities @ Site Entrance
4,205.00
276
Mitigated Wetland Planting
t31 a04 00)
277
Changes & Additions to 3W System @ Ox Ditches
34,716.00
278
Garbage Bin Structure
25,644.00
279
Relocate Veolia Materials @ CCB
788.00
280
Wetlands PS Portable Eyewash Station
5,217.00
281
Temporary Irrigation Connection to Schollenberger
2,255.00
282
Partial Deletion of Planting @ Polishing Wetlands
{ 18 900 00}
283
Change NEMA Rating for Pull Boxes @ Ox Ditches
( 10 12(1 L)(j)
18
CCo #
Description
Amount
284
Delete Trail Material W Polishing Wetland Cell D
`7 i OF, 00)
285
Equipment Pad Modifications (a) CCB Bldg.
26,412.00
286
Parapet Detail @ Ops Bldg Lobby
18,746.00
287
Relocate Potable Water Riser (a7, 1W Pump Station
3,299.00
288
Dewatering Pond 7 for TWIS
14,419.00
289
Additional work for Farmhouse Roof Replacement
41,819.00
290
Material for Clay Liner in RWSB
13,820.00
291
Ops Bldg 1 hr Fire Rating
40,885.00
292
Maintenance Bldg: 2hr Fire Rating
1,282.00
293
Relocate Tie -In to Potable Water Sys (a) Cypress Dr.
8,042.00
294
Changes to Gates & Operators (a, W Access Rd.
f8 584 ou)
295
Ellis Creek Clean Up
8,395.00
296
Analog Input Module for PLC 11
2,766.00
297
Addition of the Polishing Wetlands Pump Station
415,000.00
298
Natural Gas Connection & Metering Pad
18,435.00
299
Additional Digital Input Points PLC 9
2,335.00
300
Weather Monitoring Station
24,976.00
301
Modifications for future Polishing Wetlands Pump Station
16,899.00
302
Addition of Geofabric (a) East Access Rd. Ponds
8.740.00
303
Outlet Cutouts in Backsplash qil Ops Laboratory
1,908.00
304
Ops Bldg: Exhaust Fan Drainlines
7,662.00
305
PVC pipe for Plant Drain Piping
(4 :35; 00)
306
Drainage Swale (a) W Access Rd.
600 00)
307
UV Stair Grating Changes
1 1 1 00)
308
UV Channel Blockouts for Wireways
t6 849 00)
309
CCB: Welding of 42" Pipe Connections
27,142.00
310
Trail Connection (o, Schollenberger Park
13,167.00
311
Waste Gas Flare Pedestal
2,366.00
312
Relocation of cabinets in Ops Bldg.
753.00
313
Support for folding Partition in Ops Bldg.
830.00
314
Deepen Fuel Sump (a@ Generator
3,855.00
315
Operation Bldg: Fire Sprinkler Riser
25,728.00
316
Glass Lined Ductile Iron Pipe
97,613.00
317
Wetlands PS Mixer Mounting Bracket
1,798.00
318
Uninterruptible Power Supply (o? Ops Bldg.
24,754.00
319
Clarifier 1 & 2 Light Post Mounting
3,060.00
320
Transformer Relocation (cD Existing CCB
6,187.00
321
Ops Bldg: Mudroom Skylight Framing
5,192.00
322
Wetlands Pump Station Interim Milestone
0.00
323
Analyzer Enclosure (a) Outfall Structure
11,080.00
324
Additional Grating @ Biofilter Damper Boxes
2,747.00
325
Additional Valves for Hydronic System
762.00
326
Modifications @ Flow Control Structure C-2
2, 591 uo)
327
Change Manhole & Catch Basin Elevation @ South Cluster
1,923.00
328
Modifications to the Existing Outfall Structure
12,254.00
329
Anti Graffiti Coating (a? Garbage Bin Structure
2,389.00
330
Instrumentation and Control Modifications (cD Existing Plant
58,658.00
[L']
(Days)
CCO #
Description
Amount
(Days)
331
Miscellaneous Extra Work @ Junction Box No. 2
49,264.00
l
332
Miscellaneous Extra Work @ Existing CCB
12,655.00
333
Paint Flashinqs and install Spark Arrestor (a) Farmhouse
2,860.00
334
Temperature Detection for Recycled Water Pumps
19,598.00
335
Raise Top of Electrical Pull Box @ Headworks
3,391.00
336
Modifications to Biosolids Load -out @ Screw Press Bldg,
266,077.00
339
Reverse Service Generator Plug
4,699.00
340
Submersible Sump Pump Control Panels
2,445.00
341
Flow Meter Transmitters @ WPS
1,597.00
342
Additional Fence & Gate @ Existing Farmhouse
5,299.00
343
Install pressure gauge @ Tertiary Filter Hypochlorite panel
1,684.00
344
Widen Sidewalk @ Filter Support Bldg.
821.00
345
Anti Graffiti Coating (a) W Access Rd. Public Restroom
3,920.00
346
Screw Press Parapet Wall Height
2,658.00
347
Handrail Installation @ Ox Ditch Weir Gates
7,798.00
348
Bond and Insurance Over-Billinq
166 1 7'l_OW
349
Drains for AC Unit & Backflow Preventers @ Ops Bldq
2,185.00
350
Delete wires @ Headworks & add wires @ PWFSS
0.00
351
Added Sample & Drain Lines @ JB 2
4,127.00
352
Additional Blackout Shades @ Ops Bldg.
885.00
353
Relocation of Drain Lines @ Biosolids Load -out Slab
10,201.00
354
Deletetion of Vinyl Coating- chemical pump pad @ CCB
3, t) P 0o)
355
Ferrous Chloride Line Encasement under Equip Pad
2,608.00
356
Power Supply to Current Tranducers @ Ox Ditches
3,999.00
357
Level Switches @ RWPS
5,081.00
CHANGE ORDER TOTAL:
3,989,347.00
67
Contract Amount:
110,329,000.00
1278
Percent Change Orders:
3.62%
Totals:
114,318,347.00
1345
Total Additive Chanqe Orders
4,W8,0iC 00
Percentage of Contract Amount
4.51%
Total Credit Change Orders {W 6 r'291Y W
Percentage of Contract Amount 0.90%
Contract Substantial Completion Date 4/9/09
Current Substantial Completion Date 6/15/09
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