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INTERCONTINENTAL TERMINALS
COMPANY - TANK FIRE
Preliminary Data Summary
Deer Park, TX
April 28, 2019
Project #111356
Page | 1
1.0 Introduction
On March 17, 2019 Intercontinental Terminals Company (ITC) requested that CTEH® conduct air
monitoring after a tank fire at the Deer Park, TX terminal. CTEH® arrived on-site on March 17, 2019 and
began air monitoring and air sampling operations. CTEH® is currently conducting air monitoring in the
impacted tank farm, within the Houston Ship Channel, in several industrial areas near the incident site, in
community areas which currently have restricted access, and in the surrounding residential areas.
The present summary discusses real-time air monitoring data collected within those residential areas in
the community from April 27, 2019 00:00 to April 28, 2019 00:00. Residential areas are defined as
community locations outside of the industrial park, restricted access, and USCG divisions in the zone map
included in Attachment A. During this reporting period, CTEH® performed real-time air monitoring in
residential areas to the east of the ITC Tank Fire in Baytown, to the north in Channelview, to the west in
Jacinto City and Galena Park, and to the south in Pasadena, Deer Park, and La Porte.
2.0 Air Monitoring and Sampling Methods
CTEH® developed and implemented an Air Sampling and Analysis Plan (SAP) to document and quantify
the release of fugitive emissions, if any, from the incident at ground level. The SAP has been approved by
local, state, and federal representatives of the on-site Unified Command (UC). In accordance with this UC-
approved plan, detections of VOCs (volatile organic compounds) at or above 0.5 ppm require follow-up
monitoring for benzene. Benzene detections of 1 ppm or greater in the community are to be
communicated to the Federal On-Scene Coordinator. Because benzene is a VOC, initial monitoring for
VOCs can be used to determine if benzene-specific monitoring is required.
All instrumentation was calibrated at least once per day or per manufacturer’s recommendations. Target
analytes were measured as listed in Table 1, below. Roaming air monitoring was performed in community
residential areas with hand-held instruments. All hand-held air monitoring was conducted in the breathing
zone.
CTEH® has also collected analytical air samples for VOCs at 34 locations in the surrounding area at the
time of this report. These samples have, and will continue to be, sent to a 3rd-party laboratory for chemical
analysis. These data will be summarized in a separate report.
3.0 Air Monitoring Results
Attachment A provides maps of the locations of hand-held air monitoring and analytical air sampling in
community residential areas. Table 1 summarizes the results for community hand-held air monitoring.
Page | 2
Table 1: Community Hand-Held Real-Time Air Monitoring Results*
Analyte Instrument No. Readings No. Detections Range1
Benzene Gastec #121L 263 0 < 0.05 ppm
UltraRAE 61 4 0.125 – 0.55 ppm
LEL MultiRAE 2 0 < 1 %
VOCs MultiRAE 1927 10 0.1 – 0.5 ppm *In accordance with the UC-approved Air Sampling and Analysis Plan, benzene detections of 1 ppm or greater in the community are to be communicated to the Federal On-Scene Coordinator. 1Maximum detections preceded by the “<” symbol are considered non-detections below the limit of detection (LoD) value to the right.
Between April 27, 2019 00:00 to April 28, 2019 00:00, CTEH® observed and communicated detections of
benzene in locations outside of community residential areas, defined on the zone map (Attachment A).
These include detections near the ITC Tank Fire site (Impacted Tank Farm), in the industrial areas
surrounding the ITC Tank Fire site (USCG Division E), within the Houston Ship Channel (USCG Divisions A-
D), and in the industrial areas north and south of the Houston Ship Channel in Channelview (Industrial
Area). CTEH® has been and continues to actively monitor in the ship channel and industrial areas north
and south of the ship channel. These data are being provided to on-site regulatory agencies in real time.
During this reporting period, CTEH® performed real-time air monitoring in residential areas to the east of
the ITC Tank Fire in Baytown, to the north in Channelview, to the west in Jacinto City and Galena Park,
and to the south in Pasadena, Deer Park, and La Porte.
During this reporting period, CTEH® personnel observed 12 detections of VOCs, ranging between 0.1 ppm
and 0.5 ppm. For detections above the 0.5 ppm action level for VOCs, benzene readings were taken in
that location to determine if further action was required. In total, CTEH® observed four detections of
benzene in the community, all of which were located between De Zavalla Road and I-10 during a two-hour
window. All four detections were below the 1 ppm benzene action level approved by UC. During this same
two-hour window, CTEH® observed multiple non-detection readings for benzene in downwind locations
between the impacted tank farm and this community area. This suggests that the community benzene
detections observed during this reporting period were associated with sources unrelated to the impacted
tank farm.
4.0 Weather Conditions
Attachment B contains a wind rose depicting wind speed and direction for this reporting period. Data
was acquired from the Texas Commission on Environmental Quality (TCEQ) Lynchburg Ferry
meteorological station located on Tidal Road approximately 2 mi NNE of the incident site.
Page | A-1
Attachment A
CTEH Community Air Monitoring and
Sampling Locations
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Project:111356Client: ITC
City: Deer Park, TXCounty: Harris
COORDINATE SYSTEM: NAD 1983 UTM Zone 15N DATUM: North American 1983
0 52.5Miles IHand-Held Real-Time Monitoring Locations
ITC Tank Fire Deer Park, TX | April 27, 2019 00:00 to April 28, 2019 00:00
Legend""S Fire Location!( Hand-Held Real-Time Monitoring Location
LAST UPDATED: 4/28/2019 7:49:24 AM
!!SA
!!SA
!!SA
!!SA
!!SA
!!SA
!!SA!!SA
!!SA
!!SA!!SA
!!SA
!!SA
!!SA
!!SA
!!SA
!!SA
!!SA
!!SA
!!SA
!!SA!!SA
!!SA
!!SA !!SA
!!SA
!!SA
!!SA
!!SA
!!SA
!!SA
!!SA !!SA
!!SA
!!SA!!SA
!!SA
!!SA""SMC038
MC037
MC036MC035
MC001
MC002
MC003
MC004
MC012
MC011
MC010MC009
MC008MC007 MC006
MC005
MC021
MC026
MC025
MC030
MC019
MC020
MC029
MC027
MC024
MC023
MC028
MC022 MC018
MC013
MC017
MC015MC014
MC016
MC031
MC032 MC033
MC034
Galena Park
Deer Park
La Porte
Pasadena
South Houston
Morgan'sPoint
Jacinto City
Houston
Baytown
Baytown
Project:111356Client: ITC
City: Deer Park, TXCounty: Harris
COORDINATE SYSTEM: NAD 1983 UTM Zone 15N DATUM: North American 1983
0 42Miles IAnalytical Air Sampling Stations
ITC Tank Fire Deer Park, TX
Legend""S Fire Location!!SA Analytical Air Stations
LAST UPDATED: 4/5/2019 1:03:06 AM
ITC Fire Location Categories 1
--===--===i Miles
0 0.5
Project: 111356
Client: ITC
City: Deer Park, TX
Page | A-2
Attachment B
Meteorological Conditions
WRPLOT View - Lakes Environmental Software
WIND ROSE PLOT:
Station #Lynchburg Ferry
COMMENTS:
Plot generated using publicly available weather data.
COMPANY NAME:
MODELER:
DATE:
4/28/2019
PROJECT NO.:
NORTH
SOUTH
WEST EAST
10.2%
20.4%
30.6%
40.8%
51%
WIND SPEED (MPH)
>= 21.58
9.72 - 21.58
7.78 - 9.72
5.83 - 7.78
3.89 - 5.83
1.94 - 3.89
Calms: 0.00%
TOTAL COUNT:
24 hrs.
CALM WINDS:
0.00%
DATA PERIOD:
Start Date: 4/27/2019 - 00:00End Date: 4/27/2019 - 23:00
AVG. WIND SPEED:
7.46 MPH
DISPLAY:
Wind SpeedDirection (blowing from)