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Property Details for 711 6th Avenue West


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Profile Information

Former Buchanan Oil/Ma and Pa Store
Private
235088
711 6th Avenue West OSKALOOSA, IA 52577
1.37
1024130002, 1024130001, and 1024132001
41.289826 / -92.6523272
1
Harrington, Jonathan
harrington.jonathan@epa.gov
: (913) 551-7894


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Property Location



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Property Progress


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CAs Associated with this Property

CA NameCA #StateTypeAnnouncement Year
City of OskaloosaBF97746201IAAssessment2014
City of OskaloosaBF97769001IAAssessment2019


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Assessment Activities at this Property

ActivityEPA FundingStart DateCompletion DateCAAccomplishment Counted?Counted When?
Phase I Environmental Assessment$4,400.0007/13/201708/23/2017City of OskaloosaYFY19
Phase I Environmental Assessment$1,800.0001/09/201802/05/2018City of OskaloosaNFY19
Phase II Environmental Assessment$7,400.0010/18/201701/18/2018City of OskaloosaN
Phase II Environmental Assessment$9,500.0007/07/202103/28/2023City of Oskaloosa


Is Cleanup Necessary? Yes
EPA Assessment Funding: $23,100.00
Leveraged Funding:
Total Funding: $23,100.00


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Climate Adaption and Mitigation - Planning or Assessment

There is no data for Climate Adaption and Mitigation - Planning or Assessment.


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Contaminants and Media


Lead
PAHS
Petroleum Products
VOCs
NOT Cleaned up
NOT Cleaned up
NOT Cleaned up
NOT Cleaned up
Ground Water
Soil
NOT Cleaned up
NOT Cleaned up


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Cleanup Activities

There are no current cleanup activities.


Cleanup/Treatment Implemented:
Cleanup/Treatement Categories:
Addl Cleanup/Treatment info:
Address of Data Source:
Total ACRES Cleaned Up: 1.37
Number of Cleanup Jobs Leveraged:
EPA Cleanup Funding:
Leveraged Funding:
Cost Share Funding:
Total Funding:


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Climate Adaption and Mitigation - Demolition or Cleanup

There is no data for Climate Adaption and Mitigation - Demolition or Cleanup.


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Institutional and Engineering Controls

U
No
U
No


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Redevelopment and Other Leveraged Accomplishments

There are no current redevelopment activities.


Number of Redevelopment Jobs Leveraged:
Actual Acreage of Greenspace Created:
Leveraged Funding:


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Climate Adaption and Mitigation - Redevelopment

There is no data for Climate Adaption and Mitigation – Redevelopment


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Additional Property Attributes

The City completed a Phase II ESA on the property and an adjoining parcel (Binns and Stevens). The findings and conclusions are summarized as follows: ? Range 1 Soil: A total of one (1) insecticide, one (1) explosive, seventeen (17) PAHs, and six (6) RCRA metals detected; however, detected insecticide and explosive concentrations were below applicable SWSs. The lead concentration detected at SB7 and the benzo[a]anthracene, benzo[a]pyrene, benzo[b]fluoranthene, dibenz(a,h)anthracene, and indeno[1,2,3-cd]pyrene concentrations reported at SB6 were reported above their respective SWS. ? Range 2 Soil: A total of two (2) TEHs, fifteen (15) PAHs, twelve (12) VOCs, and five (5) RCRA metals detected; one detected TEH concentration and all detected PAH, VOC, and RCRA metal concentrations were below applicable SWSs. Diesel was reported at a concentration at SB-6 above the Tier1 Look-Up Table standard but below the SWS. ? Groundwater: A total of eighteen (18) VOCs and three (3) RCRA metals detected; however, detected concentrations were below applicable SWSs with the exception of benzene, methyl tert-butyl ether, and 1,2,4-trimethylbenzene. Benzene and methyl tert-butyl ether were detected above the PGW SWS and NPGW SWS and 1,2,4-trimethylbenzene was detected above the PGW SWS at SB-7. ? Vapor Intrusion: Sixteen (16) compounds detected in groundwater are sufficiently volatile and toxic to present a vapor intrusion risk. Groundwater results for fifteen (15) of these compounds were evaluated using the Johnson and Ettinger Vapor Intrusion Model for Forward Calculation of Indoor Air Concentration and the IDNR Cumulative Risk Calculator. One (1) compound is not available in the Johnson & Ettinger Vapor Model and as such it was not included in this calculation. The calculated results for this media indicate that vapor intrusion alone does not pose a risk on this site. The results of the study identified an acceptable risk for site workers and construction workers and an unacceptable risk for site residents on the subject property. City Council has approved the acquisition of the subject property with the intent to apply for IDNR Section 128(a) funding to remediate residual contamination. It plans to acquire the site prior to July 2018.

A Limited Phase II ESA was recently completed to better delineate previously-observed shallow soil contamination. New findings as it relates to the site in this report, dated March 28, 2023, are summarized as follows:

* Soil: Delineation samples collected for select PAHs and lead identified the vertical and horizontal extents of impacted shallow soil for these compounds on the southern extent of the site. Dibenz(a,h)anthracene was observed previously above the applicable standard and it was not included in the additional delineation activities. Although not included, it is anticipated that this compound would be isolated to a similar footprint as the other PAH compounds analyzed within this report and would be found at lower concentrations below the applicable standard. This could be confirmed through additional testing and/or confirmation sample collection during over excavation activities completed to mitigate this impacted soil.
The joint investigations found a total of seventeen (17) PAHs, six (6) RCRA metals, one (1) insecticide, one (1) explosive, two (2) TEHs, and twelve (12) VOCs detected in soil. Of those detected compounds, diesel was reported above the most restrictive Tier 1 threshold (soil leaching to groundwater) at SB-6 at 6-8 feet bgs; five PAHs were detected above SWSs at SB-6 at 0-2 feet bgs; lead was detected above the SWS at SB-7 at 0-2 feet bgs; and arsenic was reported above the 1.9 mg/kg SWS and below the 17 mg/kg Iowa statewide background. The remaining detections were not reported above an applicable SWS or Tier 1 threshold.

Arsenic in soil in Iowa can occur above the SWS and because of this a background concentration was assessed beyond the statewide background standard of
Industry (1.37)
Petroleum


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Release 3.0.2