INTERCONTINENTAL TERMINALS COMPANY - TANK FIRE Preliminary Data Summary Deer Park, TX March 20, 2019 Project #111356 1.0 Introduction On March 17, 2019 Intercontinental Terminals Company (ITC) requested that CTEH® conduct air monitoring in the surrounding community 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. This report summarizes air monitoring data collected from March 17, 2019 17:02 CDT to March 20, 2019 04:00 CDT. 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 fire at ground level. All instrumentation was calibrated at least once per day or per manufacturer’s recommendations. Target analytes were measured as listed in Table 1, below. Hand-held air monitoring consisted of roaming air monitoring in the surrounding community. All hand-held air monitoring was conducted in the breathing zone. CTEH® has also collected analytical air samples for a suite of volatile organic compounds (VOCs) at 4 locations in the surrounding area. These samples will be sent to a 3rd-party laboratory for rush chemical analysis. 3.0 Air Monitoring Results Attachment A depicts the site location and hand-held monitoring locations for this reporting period. Table 1 summarizes the results for community hand-held air monitoring readings. Table 1: Community Hand-Held Real-Time Air Monitoring Results Instrument No. Readings No. Detections Range¹ Action Level Value* Gastec #121L 7 0 < 0.05 ppm 2.25ppm UltraRAE 407 0 < 0.05 ppm 2.25ppm Carbon Monoxide MultiRAE 98 0 < 1 ppm 25ppm Formaldehyde Gastec #91L 1 0 < 0.05 ppm 0.45ppm Hexane Gastec #102L 15 0 < 1 ppm 25ppm Gastec #4LL 25 0 < 0.1 ppm 0.25ppm MultiRAE 272 0 < 0.1 ppm 0.25ppm MultiRAE 430 0 <1% 1% (2.5% corrected value) Analyte Benzene Hydrogen Sulfide LEL Page 1 Basis for Action Level ¼ EPA 8hr AEGL-1 ¼ EPA 8hr AEGL-1 ½ TEEL-O ½ EPA 8hr AEGL-1 ½ DOE SCAPA TEEL-0 Value ½ PAC-1 Value ½ PAC-1 Value Elevated LEL Analyte Instrument No. Readings No. Detections Range¹ Action Level Value* Naphtha Gastec #106 68 0 < 0.1 mg/L 50ppm Naphthalene Gastec #60 48 0 < 0.1 ppm 5ppm Gastec #9L 30 0 < 0.1 ppm 0.25ppm MultiRAE 121 0 < 0.1 ppm 0.25ppm MultiRAE 213 213 19.5% AM510 312 312 20.9 % 0.001 - 0.115 mg/m3 DustTrak DRK 4 4 0.019 - 0.029 mg/m3 0.138 mg/m3 Gastec 2 0 < 0.1 ppm 0.1ppm MultiRAE 124 0 < 0.1 ppm 0.1ppm Toluene Gastec #122L 83 0 < 0.5 ppm 33.5ppm VOCs MultiRAE 500 3 0.1 - 0.6 ppm 0.5ppm Xylene Gastec #123L 99 0 < 1 ppm 65ppm Nitrogen Dioxide Oxygen PM2.5 Sulfur Dioxide 0.138 mg/m3 Basis for Action Level ½ DOE SCAPA TEEL-0 Value ½ ACGIH TLVTWA ½ EPA 8hr AEGL-1 ½ EPA 8hr AEGL-1 Wildfire Smoke Guidelines for 1 hr. avg. upper-bound breakpoint for unhealthy for sensitive groups AQI ½ EPA 8hr AEGL-1 ½ EPA 8hr AEGL-1 ½ EPA 8hr AEGL-1 Approximate background level ½ EPA 8hr AEGL-1 Maximum detections preceded by the “<” symbol are considered non-detections below the limit of detection (LoD) value to the right. 1 The maximum VOC detection of 0.6 ppm was noted approximately 100 yards N. of Hwy 225 in an industrial, non-residential area. A subsequent reading collected in this area by the same field sampler at a later time period did not result in the detection of VOCs. Note that some additional action levels (i.e., PM2.5) may have a time-component associated with them (i.e., over 1 hr. or 8 hrs.). Total VOCs and PM2.5 have been below levels that would represent a public health concern. 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 fire. Page 2 Attachment A CTEH Monitoring Locations - CTEI SCIENCE OF TH Hand-Held Real-Time Monitoring Locations 0 ITC Tank Fire Deerpark, TX ! ( ( ! ! ( 5 10 Miles I Project:111356 Client: ITC City: Deerpark, TX County: Harris ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( !! ( ( ! ( ! ( ! ( ! ( ! ( ! ( ! (! (! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! ( ! (! ( ! ( ! ( ! ( ! ( ! ( (! ( ( ( ! ! ! ( ! ( ! ! ( ! ( ! ! ( ( (! ! ! ( ! (! ( (! ! ( ( ( ! ! ( ! ( ! ( ! ( ! (! ! ( ! ( ! ( ! ( ( ( (! ! ( ! (! ! ! ( ! ! ( ( ! ( ! (! ( ! (! ! ( ! ( (! ! ((! ( ( ! ! ( ( ! ( ! ! (! ( ! ! ! (! ! ! ( ( ( ( ( ! ! ( ( ! ! ( ( ( ! ! ! ( ( ( ! ! ( !( !( !( ( ( ( (! ( ! ! (! ( ( ! (! ! ( ! ! ( ( (! (! ! ( ! (! (! (! ( ! ( ! ! (! (! ( ! (! ! ( ! ( ! ( ! ( ! ( ! (! ! ( ( ! ( ! ( ! (! ! ( ! ( ! (! ( ((! ! (! (! (! ! ( ( ( ! (! ! ! ! (! ( ( ( ! ( ( ! ! ( (! ! ! ! ( ( ( ! ! ( ( (! ! ! ( ! ! ( ! ! ! ( (! ( ( ( ! ! ( ( ! ( ! ( ( ( ! ( ( ! ! ! S ! ! ! ( ! ( ( ( ! (! ! ( ! ( ! ! ( ( ( ( ( ! ! ! ! ( ( (! ( ( ! ( ! ( ! ! ! ( ( ( ( ( ! (! ! ! ( ! ( ( (! ( ! ! ! (! (! ( ! (! ! ( ! ( ( (! ! (! ! ( ( ! ( ! ! ! ! ( ! ( ! ( ( ! ( ( ( ! ( ! ! ! ! ( ( ! ( ( ! ( ! ! ! ! ( ! ( ! ( ! ( (( !! ( ( ! !( ( ! ( (!( ! ! ( ! ( ! ! ( (! ( ! ! ( ! (! ( ! (! ( ! ! ! ( ! ( (! ( ((! ( ! (( ! !! ! ( ! ( ( ! ! ! ( ( ( ! ( ( ( (! ! ( ! ( ! ! ( ( ! ( ( ! ( ! ( ! 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( COORDINATE SYSTEM: NAD 1983 UTM Zone 15N DATUM: North American 1983 Fire Location Hand-Held Real-Time Monitoring Location LAST UPDATED: 3/20/2019 4:54:20 AM Attachment Meteorological Conditions SCIENCE OF TH WIND ROSE PLOT: DISPLAY: Station #Lynchburg Ferry Wind Speed Direction (blowing from) NORTH 15.2% 12.1% 9.09% 6.06% 3.03% WEST EAST WIND SPEED (MPH) >= 21.58 9.72 - 21.58 7.78 - 9.72 5.83 - 7.78 SOUTH 3.89 - 5.83 1.94 - 3.89 Calms: 2.70% COMMENTS: DATA PERIOD: COMPANY NAME: Start Date: 3/17/2019 - 00:00 End Date: 3/19/2019 - 18:00 MODELER: WRPLOT View - Lakes Environmental Software CALM WINDS: TOTAL COUNT: 2.70% 57 hrs. AVG. WIND SPEED: DATE: 5.30 MPH 3/19/2019 PROJECT NO.: 111356