CM-08-02-047DATE: February 11, 2008
SUBJECT: City Manager Approval - February 15, 2008
ITEM: Action authorizing the City Manager to execute Change Order No. 1 with
Enviro Remediation Coatings Services, Inc. for the 2005-2006 Wastewater
Collection System Rehabilitation 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 is for quantity adjustments.
Funding:
Cost: ($267.00)
Source of funds: WW Utility Fund (F260)
Outside Resources: RJN Group, Inc. (Engineering Consultant)
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 line replacement, internal joint grouting, and manhole rehabilitation
and replacement.
Public Comment: N/A
Blue Sheet Format
Updated 01/20/04
CITY 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: $2,112,690.00
PREVIOUS CHANGE ORDERS:
THIS CHANGE ORDER:
CHANGE ORDERS TO DATE:
($267.00)
($267.00)
CHANGE DATA
PAGE 1 OF 2
DATE: 2/8/2008
CHANGE ORDER NO: 1
JUSTIFICATION:
CHANGE
ORDER QTY
NEW
TOTAL
QTY
UNIT PRICE
AMOUNT
8" Dia. PVC SDR -26 Sewer Pipe, 0'-6'Deep, open
U1-1 cut -253 LF 1,397.00 $65.00 ($16,445.00)
8" Dia. HDPE DR -17, IPS Sewer Pipe by Pipe
U1-8 Enlargement 173 LF 1,308.00 $65.00 $11,245.00
U1-38 Waterline lowering -2 EA 1.00 $4,000.00 ($8,000.00)
U1-40 Rock Excavation -300 CY 200.00 $50.00 ($15,000.00)
U1-44 Replace Manhole Frame & Cover Bolted 10 EA 26.00 $850.00 $8,500.00
U1-46 Non- Paved Frame & Grade Adjustments 9 EA 27.00 $700.00 $6,300.00
U1-48 Internal Urethane Chimney Seal -16.03 VF 13.97 $400.00 ($6,412.00)
U1-49 Pressure Grout Manhole 18 JT 45.00 $500.00 $9,000.00
U1-50 Pressure Grout Pipe Seal 9 EA 27.00 $850.00 $7,650.00
12" Dia. PVC SDR -26 Pressure Rated Pipe, 0'-
U1-5 6'Deep, open cut 140.00 LF 140.00 $120.00 $16,800.00
Job No. 1001- Line 6LF of Existing pipe w/ 42"
liner patch, Line 10LF of existing pipe with 42"
U2-1 liner patch -1 LS 0.00 $43,500.00 ($43,500.00)
Job No. 1002- Line 10LF of existing pipe w. 42"
U2-2 liner patch -1 LS 0.00 $28,125.00 ($28,125.00)
Air Pressure Test & Grout Defective Joints in 42"
U2-3 Dia. Sanitary Sewer Pipe D2-14 1265 LF 6,365.00 $18.00 $22,770.00
Job No. 1019 - Line 6LF of Existing Pipe with 12"
U2-4 Liner Patch -1 LS 0.00 $9,500.00 ($9,500.00)
U2-7 Chemical Grout (Material Only) Per D2-14 2000 GAL 6,500.00 $17.00 $34,000.00
U2-10 15" Dia CIPP Sewer Liner 12 LF 937.00 $75.00 $900.00
U1-20 6" Sewer Service Line 4 EA 18.00 $1,500.00 $6,000.00
U1-51 Cementious Coating 27.7 VF 28.60 $100.00 $2,770.00
U1-52 Epoxy 2.6 VF 412.60 $250.00 $650.00
U1-9 8" HPDE DR -17 0'-8' deep, open cut 2 LF 127.00 $65.00 $130.00
TOTAL CHANGE IN CONTRACT PRICE ($267.00)
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PREPARED BY:
ENGINEER
Envir• mediation Coatin• Services Inc.
CONT OR
2/8/2008
DATE
SIGNATUR
PRINT NA ENTITLE: Randall' Bear" Chilton
CITY OF ROUND ROCK
PAGE2OF2
% OF ORIG. CONTRACT PRICE
THIS CHANGE ORDER: -0.01%
PREV. CHANGE ORDER: 0.00%
TOTAL % CHANGE: -0.01%
ORIG. CONTRACT PRICE PLUS
resident CHANGE ORDERS: $2,112,423.00
a 15,05
S R. NUSE CITY MANAGER DATE
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