HomeMy WebLinkAboutCORRESPONDENCE - RFP - 8631 GENERAL ENVIRONMENTAL SERVICES (9)Change Order Form (for Work Orders)
Official Purchasing Form
Last updated 10/2017
CHANGE ORDER
NO. 1
PROJECT TITLE: U835 Wood Street Groundwater Monitoring
CONTRACTOR: CGRS
WORK ORDER NUMBER: 2019-12.13
PO NUMBER: 9192222
DESCRIPTION:
1. Reason for Change: OPS is requiring a Corrective Action Plan for this release
2. Description of Change: In accordance with the OPS requirements, it is our recommendation to
follow all requirements set by the Colorado Storage Tank Regulations 7 CCR 1101-14 and associated
guidance documents. Adherence to these regulations will help ensure eligibility for reimbursement of
assessment and reporting activity costs through the Petroleum Storage Tank Fund. CGRS proposes
enhanced fluid recovery events to mitigate free-phase hydrocarbons prior to CAP submittal. The scope of
work includes the following:
x Perform slug tests in three monitoring wells (included in lump sum) and an LNAPL transmissivity
test in well MW-7.
x Perform up to 2 EFR events to prevent LNAPL migration from the source area.
x Install one groundwater monitoring well (MW-11) due east of MW-7 and south of MW-9 for
complete plume definition in the down-gradient direction.
x Install one air sparge well (AS-1) in the source area for pilot testing.
x Perform air sparge & soil vapor extraction pilot tests to determine remedial feasibility.
x Prepare and submit a Corrective Action Plan (CAP) to OPS outlining the remedial plan for the site.
3. Change in Work Order Price: $27,440.00
4. Completion Date (if changed): UDecember 1, 2020
ORIGINAL WORK ORDER PRICE $ 18,237.00
TOTAL APPROVED CHANGE ORDER 0.00
TOTAL PENDING CHANGE ORDER 0.00
TOTAL THIS CHANGE ORDER $27,440.00
TOTAL % OF THIS CHANGE ORDER 149%
TOTAL C.O.% OF ORIGINAL WORK ORDER 149%
ADJUSTED WORK ORDER COST $ 45,677.00
DocuSign Envelope ID: 524BE525-AEBD-43B0-9A87-C6A99CE558A0
Change Order Form (for Work Orders)
Official Purchasing Form
Last updated 10/2017
CONTRACTOR: CGRS
By: Date:
Name: Title:
Glen Vallance
ACCEPTANCE: Date:
Shane Armfield, Project Manager
REVIEWED: Date:
Pat Johnson, Senior Buyer
ACCEPTANCE: Date:
Errin Henggeler, Env. Reg Specialist
DocuSign Envelope ID: 524BE525-AEBD-43B0-9A87-C6A99CE558A0
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