Nebraska Department of Environmental Quality
Pay For Performance
Site Summary
Intended for use by NDEQ's pre-qualified Pay for Performance Contractors. Potential bidding Contractors should not contact the State Contractor that performed the Tier 1 & 2 with questions about the site. Those types of questions should be addressed to Phil Hargis at (402) 471-3150 or Email at Phil.Hargis@Nebraska.Gov.
.
Date:01/20/2006
Site Name:Gas N Shop (2)
UG#08109-JHB-1400
Address:13941 Highway 6
County:Lancaster
Closest TownWaverly
Legal Description:SE, SE, SW Sect.16, T11N, R8E
Contractor Performing Assessment:RDG Geoscience
Tier 1 Date:06/23/2004
Tier 2 Date:04/11/2005
Property Owner’s Name:Amy Hawbaker
Property Owner’s Phone Number:(515) 965-6231
Contamination Types:Gasoline/Diesel
PFP Bid Number:NE-034
Posting Date:12/21/2010
Closing Date for requesting clarifications from the NDEQ:01/21/2011
Clarifications to relevant questions will be issued by the NDEQ by:01/28/2011
Bid Submittal Deadline 03/04/2011 at 2:00 pm central time.

Site Summary:
Gas N Shop, Waverly, became a LUST site in August 1989 during a tank closure. It is located on the Southwest corner of Highway 6 and 140th Street on the East edge of Lincoln. The site is a currently an operating gas station and fast food mart. It is a very busy gas station. Ground water depth in the area averages about 18 feet, and there is an active municipal well about 300 feet from the edge of the contamination plume. A number of technical issues are present at this site; however the store manager and Casey's are easy to work with and there is a well-defined, small plume that is only Benzene driven. This site will be a dissolved contamination cleanup. This site was awarded a PFP Contract in 2006. The cleanup was not successful resulting in this second attempt to remediate this site under PFP. Please note the fiber optics line running through the plume and a large portion of the plume resides under the highway. As we have noted with other PFP sites, the portion of the plume under the highway will have to be accounted for, or it is doubtful the reduced contamination levels after cleanup will hold below SSTLs during the monitoring period. As mentioned above, this is a very challenging site.

Table 1. Final Tier 2 Sampling Results:

Well
Benzene
Toluene
Ethylbenzene
Xylenes
n-Hexane
MTBE
Naphthalene
Total Conc.
MW-1
1.040
.760
0.367
1.220
.139
0.0103
0.211
3.7473
MW-6
1.150
0.321
0.224
0.700
.0264
0.190
0.0206
2.632
Plume Total Concentration
2.190
1.081
0.591
1.920
.1654
0.2003
0.2316
6.3793
Plume SSTL Concentration
0.701
>SOL
110
>SOL
>SOL
2.235
>SOL
112.936
Plume Initial Concentration above SSTLs
1.489
Not Over
Not Over
Not Over
Not Over
Not Over
Not Over
Not Over
MW-2
ND
ND
ND
ND
NT
ND
ND
ND
MW-3
ND
ND
ND
ND
NT
ND
ND
ND
MW-4
ND
ND
ND
ND
NT
ND
ND
ND
MW-5
ND
ND
ND
ND
NT
ND
ND
ND
MW-7
ND
ND
ND
ND
NT
ND
ND
ND
MW-7d
ND
ND
ND
ND
NT
ND
ND
ND
MW-8
ND
ND
ND
ND
NT
ND
ND
ND
MW-9
ND
ND
ND
ND
NT
ND
ND
ND
MW-10
ND
ND
ND
ND
NT
ND
ND
ND
MW-11
ND
ND
ND
ND
NT
ND
ND
ND
Units in mg/l, sampled on 10/30/09.

Table 2. SSTLs:

Well
Benzene
Toluene
Ethylbenzene
Xylenes
MTBE
Naphthalene
MW-1
0.512
>SOL
>SOL
>SOL
1.615
>SOL
MW-6
0.189
>SOL
110
>SOL
0.620
>SOL
Pictures:



MAPS:
Area

Benzene Contour


Site Specifications:
1. As previously mentioned, the station is very busy and space on the property is limited.

2. The property owner would like a call before you visit the site.

3. The entire lot is paved.

4. You will probably have to deal with the city, Department of Roads and the railroad for right-of-way.

5. A two year monitoring period will be required on this site due to the municipal well threat and some of the plume located under the highway, moving Northwest.
.
Department Contacts: Phil Hargis and David Chambers at (402) 471-3150

For a complete copy of the file, please follow the copying instructions on NDEQ’s PFP web site.



Nebraska Department of Environmental Quality
1200 "N" Street, Suite 400
P.O. Box 98922
Lincoln, Nebraska 68509
(402) 471-2186