Memorandum
City of Lawrence
Public Works
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TO: |
David P. Cronin, P.E., City Engineer |
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FROM: |
Matt Bond, P.E., Stormwater Engineer/LVP Project Manager |
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CC: |
Charles Soules, P.E., Director of Public Works Mark Thiel, Assistant Public Works Director |
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DATE: |
December 1, 2014 |
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RE: |
Agenda Item - Project PW1433 - RCRA Site Remediation at the former Farmland Industries Nitrogen Plant (Lawrence VenturePark) |
On November 25, 2014, the City of Lawrence opened proposals for the following:
Project PW1433 – City Bid No. B1461 - RCRA Site Remediation - Lawrence VenturePark.
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CONTRACTOR |
TOTAL |
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Engineer's Estimate |
$750,000.00 |
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King's Construction Co., Inc. |
$363,631.00 |
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R.D. Johnson Excavating Co., Inc. |
$699,000.00 |
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Dale Brothers |
$1,343,975.22 |
Project Description
With the acquisition of the former Farmland Industries Nitrogen Plant, now known as Lawrence VenturePark, the City is bound by consent order (Case No. 10-E-94 BER) to follow the environmental remediation procedures outlined in the Corrective Action Decision (CAD) authored by the Kansas Department of Health & Environment (KDHE) signed March 3, 2010. The CAD stipulates compliance with the Post-Closure Care requirements for the closed Chrome Reduction System (CRS) Unit.
The CRS Unit was constructed and operated from 1972 to 1984 to remove hexavalent chromium from water, which had been circulated through cooling towers to inhibit corrosion. Closure of the CRS was accomplished in 1986 and early 1987 under a Resource Conservation & Recovery Act (RCRA) Closure Plan approved by the KDHE. A RCRA permit for Post Closure Care was jointly issued by the KDHE and USEPA Region VII in February 1993 and was renewed in 2002 to continue the Post-Closure Care monitoring. As groundwater pH is the only remaining compliance issue for the CRS Unit and chromium has not been detected in the monitoring wells, KDHE has stipulated that the CRS Unit may be clean-closed following mitigation of the low pH condition. The proposed project will mitigate the low pH condition by mixing the in situ soils with lime sludge.
The CAD determined the appropriate action for the CRS Unit was to monitor for a period of up to 30 years. The estimated costs in monitoring and fees paid to the KDHE over the 30 year period would be approximately $480,000.00. The City staff determined that the neutralization of the low pH material using the lime sludge already onsite would offer the benefit of getting the CRS Unit out of the regulatory arena, thereby stopping the annual fees and monitoring costs. It would also provide an area that would be better suited for development, as it would no longer be regulated.
Project Funding
The funding source for the remediation of the RCRA Site will be funded entirely from with the environmental remediation fund obtained with the acquisition of the site and has been approved by the Kansas Department of Health & Environment.
Action Request
Approve the award of the bid "RCRA Site Remediation - Lawrence VenturePark" (PW1433) on the former Farmland Industries Plant site in the amount of $363,631.00 to King's Construction Co., Inc. provided they meet the requirements of the signed contract.
Attachment: Figure 1 - Location Map