Memorandum

City of Lawrence

Public Works

TO:	David P. Cronin, P.E., City Engineer
CC:	Charles Soules, P.E., Director of Public Works
FROM:	Matt Bond, P.E., Stormwater Engineer/Farmland Project Manager
DATE:	October 31, 2014
RE:	Agenda Item - Project PW1323 - City Bid No. B1462 Interceptor Trench at Lawrence Venture Park

Please include the following item on the City Commission Agenda for consideration at the November 11, 2014 meeting.

Project Description & Background

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 requires the remediation of nitrogen impacted ground water seeping from the sandstone hill in the north central part of the site known as the Central Ponds.  When the site was still operating as Farmland Industries, this location included open air settlement ponds.  Some of the contents of these ponds leached into the sandstone hill and are now surfacing from its southern side slope. The CAD stipulates the construction of an interceptor trench(s) to remediate this surfacing nitrogen impacted ground water.  (see attached map)

Project Funding

The project is funded entirely with the environmental remediation fund obtained with the acquisition of the site and has been approved by the Kansas Department of Health & Environment.

Project Schedule

Advertise for bids: November 12, 2014	Anticipated Start Date: Mid December 2014
Bid date: November 25, 2014	Project Completion Date: Spring 2015

Action

Set bid date of November 25, 2014 for the construction of interceptor trenches north of the Central Ponds area at Lawrence Venture Park- Project No. PW1323.