PUBLIC
NOTICE
LOUISIANA DEPARTMENT OF ENVIRONMENTAL QUALITY (LDEQ)
CENTERPOINT
ENERGY GAS TRANSMISSION, LLC
SLIGO SOIL REMEDIATION FACILITY
The LDEQ, Office of
Environmental Services, is accepting written comments on a proposed synthetic minor source air operating permit for Centerpoint Energy Gas Transmission, LLC, 4500 W. 61st Street, Little Rock, AR 72209 for the Sligo Soil Remediation Facility. The facility is located at Arkla Plant Rd (off Sligo Rd) in Haughton, Bossier Parish.
Centerpoint Energy Gas Transmission, LLC
requested a modification of the permit to address an increase in
emissions associated with the existing soil vapor extraction/in-situ air sparge
(SVE/IAS) system (Point Source No. BW-#1, TRT001). Following a recent
optimization of the SVE/IAS system in December 2011, CEGT has observed improved
efficiency in the removal of volatile organic compounds (VOC) from groundwater
and the vadose zone. CEGT is therefore requesting a modification to the
existing permit resulting in an increased threshold of total annual air
emissions of VOCs. To allow for greatest operational flexibility, CEGT is
requesting that facility-wide HAP emissions be permitted at less than 9.00 tpy
for each individual HAP and 24.75 tpy for total HAPs combined.
Estimated emissions from this facility in tons per
year are as follows:
Pollutant
|
Before
|
After
|
Change
|
PM10
|
-
|
-
|
-
|
PM2.5 a
|
-
|
-
|
-
|
SO2
|
-
|
-
|
-
|
NOX
|
-
|
-
|
-
|
CO
|
-
|
-
|
-
|
VOC b
|
39.52
|
96.82
|
+57.30
|
Total TAP’s
|
11.28
|
24.98
|
+13.70
|
a
Existing but not previously required to report
b VOC speciation in
tons per year
A technical review
of the working draft of the proposed permit was submitted to the facility
representative and the LDEQ Inspection Division. Any remarks received during the technical
review will be addressed in the “Worksheet for Technical Review of
Working Draft of Proposed Permit”. All remarks received by LDEQ
are included in the record that is available for public review.
Comments
and requests for a public hearing or notification of the final decision
can be submitted via personal delivery, U.S. mail, email, or fax. Comments and
requests for public hearings must be received by 4:30 pm CST, Monday,
June 24, 2013. Delivery may
be made to the drop-box at 602 N. 5th St., Baton Rouge, LA
70802. U.S. Mail may be sent to LDEQ,
Public Participation Group, P.O. Box 4313, Baton Rouge, LA 70821-4313. Emails may be
submitted to DEQ.PUBLICNOTICES@LA.GOV
and faxes sent to (225) 219-3309.
Please
see additional instructions for comment submission, hand delivery and
information regarding electronic submission at http://www.deq.louisiana.gov/portal/Default.aspx?tabid=2256 or call (225) 219-3276. Emails should follow the statewide
email policies. For more information regarding statewide email policies, go to http://doa.louisiana.gov/ocs/email/policies.htm.
If
LDEQ finds a significant degree of public interest, a public hearing will be
held. LDEQ will send notification of the
final permit decision to the applicant and to each person who has submitted
written comments or a written request for notification of the final decision.
The proposed permit and permit application
available for review at the LDEQ, Public
Records Center, Room 127, 602 North 5th Street, Baton Rouge,
LA. Viewing hours are from 8:00 a.m. to
4:30 p.m., Monday through Friday (except holidays). The
available information can also be accessed electronically on the Electronic
Document Management System (EDMS) on the DEQ public website at www.deq.louisiana.gov.
Additional copies may be reviewed at the Bossier Parish Library - Haughton Branch, 116 W McKinley Avenue
Haughton, LA 71037.
Inquiries
or requests for additional information regarding this permit action should be
directed to Tricia Kelehan, LDEQ, Air Permits Division, P.O. Box 4313, Baton Rouge, LA
70821-4313, phone (225) 219-3488.
Persons wishing to be included on
the LDEQ permit public notice mailing list or for other public participation
related questions should contact the Public Participation Group in writing at
LDEQ, P.O. Box 4313, Baton Rouge, LA 70821-4313, by email at DEQ.PUBLICNOTICES@LA.GOV or contact
the LDEQ Customer Service Center at (225) 219-LDEQ (219-5337).
Permit public notices including electronic access to the proposed permit
can be viewed at the LDEQ permits public notice webpage at www.deq.louisiana.gov/apps/pubNotice/default.asp
and general information related to the public participation in permitting
activities can be viewed at www.deq.louisiana.gov/portal/tabid/2198/Default.aspx.
Alternatively, individuals may elect to receive the permit
public notices via email by subscribing to the LDEQ permits public notice List
Server at http://louisiana.gov/Services/Email_Notifications_DEQ_PN/.
