Document ID: EPA-HQ-SFUND-1983-0002-0751
Agency: epa
Document Type: Rule
Title: National Oil and Hazardous Substances Pollution Contingency Plan; National Priorities List: Partial Deletion of the Ellisville Superfund Site
Posted Date: 2017-07-17T04:00Z

[Federal Register Volume 82, Number 135 (Monday, July 17, 2017)]
[Rules and Regulations]
[Pages 32646-32648]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2017-14831]

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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 300

[EPA-HQ-SFUND-1983-0002; FRL-9964-55-Region-7]

National Oil and Hazardous Substances Pollution Contingency Plan; 
National Priorities List: Partial Deletion of the Ellisville Superfund 
Site

AGENCY: Environmental Protection Agency (EPA).

ACTION: Final rule.

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SUMMARY: The Environmental Protection Agency (EPA) Region 7 announces 
the deletion of the Callahan property, Operable Unit 3(OU3) (Parcel ID 
22U220242) of the Ellisville Superfund

[[Page 32647]]

Site (Site) located in Wildwood, Missouri (E\1/2\, NW\1/4\, SE\1/4\, 
S31, T45N, R04E), from the National Priorities List (NPL). The NPL, 
promulgated pursuant to section 105 of the Comprehensive Environmental 
Response, Compensation, and Liability Act (CERCLA) of 1980, as amended, 
is an appendix of the National Oil and Hazardous Substances Pollution 
Contingency Plan (NCP). This partial deletion pertains to all media 
(soil and groundwater) of the Callahan property, (OU3) Subsite. The 
Bliss (OU2) and Rosalie (OU1) operable units will remain on the NPL and 
are not being considered for deletion as part of this action. The EPA 
and the State of Missouri, through the Missouri Department of Natural 
Resources, have determined that all appropriate response actions under 
CERCLA, have been completed. However, the deletion of this parcel does 
not preclude future actions under Superfund.

DATES: This action is effective July 17, 2017.

ADDRESSES: EPA has established a docket for this action under Docket 
Identification No. EPA-HQ-SFUND-1983-0002. All documents in the docket 
are listed on the https://www.regulations.gov Web site. Although listed 
in the index, some information is not publicly available, i.e., 
Confidential Business Information or other information whose disclosure 
is restricted by statute. Certain other material, such as copyrighted 
material, is not placed on the Internet and will be publicly available 
only in hard copy form. Publicly available docket materials are 
available either electronically through https://www.regulations.gov or 
in hard copy at the site information repositories. The locations and 
viewing hours of the site information repositories are:
    The Region 7 Records Center, 11201 Renner Boulevard, Lenexa, KS 
open from 8 a.m. to 4 p.m. Monday-Friday and the Daniel Boone Branch 
Library, 300 Clarkson Road, Ellisville, MO open from 9 a.m. to 9 p.m. 
Monday-Thursday, 9 a.m. to 5 p.m. Friday and Saturday, and 1 p.m. to 5 
a.m. on Sunday.

FOR FURTHER INFORMATION CONTACT: Laura Price, Remedial Project Manager, 
U.S. Environmental Protection Agency, Region 7, Environmental 
Protection Agency, 11201 Renner Boulevard, Lenexa, Kansas 66219, email: 
price.laura@epa.gov or telephone: 913-551-7130.

SUPPLEMENTARY INFORMATION: The portion of the site to be deleted from 
the NPL is: Callahan property, OU3 of the Ellisville Superfund Site, 
Wildwood, Missouri. A Notice of Intent for Partial Deletion for this 
Site was published in the Federal Register (81 FR 14813) on March 18, 
2016.
    The original closing date for comments on the Notice of Intent for 
Partial Deletion was April 18, 2016. However, the EPA continued to 
accept public comments at the request of the City of Wildwood until May 
18, 2016. Twenty-five public comments were received and the public 
concerns expressed in the comments were: Public health risks that may 
still remain at the subsite, additional time to observe the subsite for 
possible long-term effects, future construction at the subsite will 
disturb contaminants left at the site, dioxin and polychlorinated 
biphenyls (PCBs) contaminants were not evaluated or were being left in 
place, groundwater was not evaluated, vapor intrusion issues were not 
evaluated, and that five year reviews should be conducted at the 
subsite. The EPA removed all contaminated soil down to bedrock at the 
Callahan subsite then collected confirmation samples on the sidewalls 
to confirm that clean-up was achieved both vertically and laterally. 
EPA considers that all contaminants of concern in the site soils above 
clean-up criteria were removed from the Callahan subsite. Therefore, 
there is not contamination to disturb through future construction. PCBs 
and dioxin were not detected above clean-up criteria and are not 
considered contaminants of concern at the Callahan subsite. The EPA 
conducted a groundwater investigation at the property where three wells 
were installed then sampled. All groundwater samples at the Callahan 
subsite were non-detect for contaminants of concern. Indoor air 
sampling was not conducted at residential homes near the Callahan 
subsite since all impacted soil was removed from the site and the 
groundwater is not impacted with contamination. The EPA considers there 
is no pathway for vapor intrusion. The EPA determined all threats to 
public health and the environment requiring action have been addressed 
and that the Callahan subsite meets the criteria for unlimited use/
unrestricted exposure (UU/UE). Since the Callahan subsite meets UU/UE 
requirements a five-year review is not required for the Callahan 
subsite. Based on an evaluation of all requirements under 40 CFR 
300.425(e) and 60 FR 55466-55467, the EPA concluded that the Callahan 
subsite could and should be deleted from the NPL. A responsiveness 
summary was prepared and placed in both the docket, EPA-HQ-SFUND-1983-
0002, on www.regulations.gov, and in the local repositories listed 
above.
    The EPA maintains the NPL as the list of sites that appear to 
present a significant risk to public health, welfare, or the 
environment. Deletion of a site from the NPL does not preclude further 
remedial action. Whenever there is a significant release from a site 
deleted from the NPL, the deleted site may be restored to the NPL 
without application of the hazard ranking system. Deletion of portions 
of a site from the NPL does not affect responsible party liability, in 
the unlikely event that future conditions warrant further actions.

List of Subjects in 40 CFR Part 300

    Environmental protection, Air pollution control, Chemicals, 
Hazardous substances, Hazardous waste, Intergovernmental relations, 
Penalties, Reporting and recordkeeping requirements, Superfund, Water 
pollution control, Water supply.

    Dated: June 12, 2017.
 Edward H. Chu,
Acting Regional Administrator, Region 7.
    For reasons set out in the preamble, 40 CFR part 300 is amended as 
follows:

PART 300--NATIONAL OIL AND HAZARDOUS SUBSTANCES POLLUTION 
CONTINGENCY PLAN

0
1. The authority citation for part 300 continues to read as follows:

    Authority: 33 U.S.C. 1321(c)(2); 42 U.S.C. 9601-9657; E.O. 
12777, 56 FR 54757, 3 CFR, 1991 Comp., p. 351; E.O. 12580, 52 FR 
2923; 3 CFR, 1987 Comp., p. 193.

0
2. Table 1 of Appendix B to part 300 is amended by revising the entry 
``MO'', ``Ellisville Site'', ``Ellisville'' to read as follows:

Appendix B to Part 300--National Priorities List

[[Page 32648]]

                                       Table 1--General Superfund Section
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                  State                            Site name                   City/county           Notes  (a)
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                                                  * * * * * * *
MO......................................  Ellisville Site............  Ellisville.................            P
 
                                                  * * * * * * *
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(a) = Based on issuance of health advisory by Agency for Toxic Substances and Disease Registry (if scored, HRS
  score need not be greater than or equal to 28.50).
 * * * * * * *
P = Sites with partial deletion(s).

* * * * *
[FR Doc. 2017-14831 Filed 7-14-17; 8:45 am]
BILLING CODE 6560-50-P