CM-08-12-286CITY OF ROUND ROCK
CONSTRUCTION CHANGE ORDER
DEPARTMENT: Utility Administration
PROJECT. 2005-06 Wastewater Collection System Rehab Basins
BC22-Z, CC32-Z,OC30-Z, EW01-Z, LC11,LC12.LC14,LC16-Z
ORIGINAL CONTRACT PRICE:
PREVIOUS CHANGE ORDERS:
THIS CHANGE ORDER:
CHANGE ORDERS TO DATE:
$2,112,690.00
($60.999.50)
( 39,698.00)
($100.691.50)
CHANGE TA
PAGE 1 OF 1
DATE:
CHANGE ORDER
JUSTIFICATION:
CURRENT CONTRACT PRICE:
12/12/2008
4
$2,011,992 50
12" Dia. PVC SDR -26 Pressure Rated Pipe 0-6'Deep open
cut
30"Dia. Steel Encasement Pi • -, 11 . Bore & Jack
Remove & Replace 48"Dia. Manhole, 0'-6' deep, Inc. Epoxy
coatin •
Remove & Replace 48"Dia. DROP Manhole, EXTRA DEPTH,
Inc. E Coatin•
6" PVC Sewer Service Lines 0'-25' with service cleanout
Sa• Removal after Pi•e Enlar•ement or CIPP
Re lace Manhole Frame & Cover NON -BOLTED, 24" Per
Replace Manhole Frame & Cover (BOLTED, 24") Per sect.
D2-2 Material Onl
NON -PAVED Frame & Grade Adjustment Sealing per Section
D2-4
Internal Urethane Chimne Seal MICROSILICA
Additional Pipe Installed Varying in Dia. From 6"-12", Complete in place, Inc.
Backfill material, service connections, compaction & surface restoration in
paved & non paved areas per sect. 02-5
A••1 E Coatin• to Entire Manhole •-rSect. D2-8
Abandon Existin. Manhole •er Detail Sheet
PREPARED BY:
ENGINEER
Enviro Remecliatio ..Coatin. Services Inc.
NAME:OF CONTRACTOR
SIGNATURE:
PRINT NAME/TITLE: Ra
APPROVED
CITY OF ROUND ROCK
Get- bt_ LZ -z
12/12/2008
DATE
President
OF ORIC C0 NT ACT PR!CE
THIS CHANGE ORDER:
PREY. CHANGE ORDERS:
TOTAL % CHANGE:
ORIG. CONTRACT PRICE PLUS
CHANGE ORDERS: $2,011,992.50
-1.88%
-6.62%
-4.77%
DATE: December 15, 2008
SUBJECT: City Manager Approval - December 19, 2008
ITEM: Consider executing Change Order No. 4 with Enviro Remediation Coatings
Services, Inc. for the 2005-2006 Wastewater Collection System Project.
Department: Water and Wastewater Utilities
Staff Person: Michael Thane, P.E., Director of Utilities
Justification:
The City is required to inspect, repair, and certify its wastewater collection system in
compliance with the Texas Commission on Environmental Quality's Edwards Aquifer
Recharge Zone Protection Program. This change order adjusts final contract quantities for
all work performed under this contract.
Funding:
Cost: ($39,698.00)
Source of funds: WW Utility Fund (F260)
Outside Resources:
RJN Group, Inc. (Engineering Consultant)
Enviro Remediation Coatings Services, Inc.
Background Information:
This project rehabilitates defective sewers, which were identified in the 2005-2006
Wastewater Collection System Inspection Project in three Edwards Aquifer Basins (CC -32Z,
OC -30Z, and BC -22Z). The elimination of defects not only helps protect the aquifer, but
also reduces inflow and infiltration entering the sewer system, thereby reducing the City's
treatment cost from the Lower Colorado River Authority and the Brazos River Authority, who
respectively own and operate the Brushy Creek Regional Wastewater Treatment Plant. The
scope of the project includes cured -in-place pipe, liner patches, point repairs, pipe bursting,
boring, conventional pipe replacement, internal joint grouting, and manhole rehabilitation
and replacement.
Public Comment: N/A
Blue Sheet Format
Updated 01/20/04
Amount
% Change
Original Contract
$ 2,112,690.00
N/A
Previous Change Orders
$ -60,999.50
-2.89%
Change Order No. 4
$ -39,698.00
-1.88%
Revised Contract
$ 2,011,992.50
-4.77%
Outside Resources:
RJN Group, Inc. (Engineering Consultant)
Enviro Remediation Coatings Services, Inc.
Background Information:
This project rehabilitates defective sewers, which were identified in the 2005-2006
Wastewater Collection System Inspection Project in three Edwards Aquifer Basins (CC -32Z,
OC -30Z, and BC -22Z). The elimination of defects not only helps protect the aquifer, but
also reduces inflow and infiltration entering the sewer system, thereby reducing the City's
treatment cost from the Lower Colorado River Authority and the Brazos River Authority, who
respectively own and operate the Brushy Creek Regional Wastewater Treatment Plant. The
scope of the project includes cured -in-place pipe, liner patches, point repairs, pipe bursting,
boring, conventional pipe replacement, internal joint grouting, and manhole rehabilitation
and replacement.
Public Comment: N/A
Blue Sheet Format
Updated 01/20/04