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HomeMy WebLinkAboutAS-4172_41260_CA_AFVR_20200304 AGGRESSIVE FLUID VAPOR RECOVERY REPORT BRUSH CREEK ELEMENTARY SCHOOL 265 UPPER BRUSH CREEK ROAD MARSHALL, NORTH CAROLINA 28753 NCDENR INCIDENT NO. 41260 MSGS PROJECT NUMBER: MC19-01 Prepared for Madison County Board of Education 5738 US 25 Marshall, North Carolina 28753 February 2020 AGGRESSIVE FLUID VAPOR RECOVERY REPORT BRUSH CREEK ELEMENTARY SCHOOL MADISON COUNTY BOARD OF EDUCATION 265 UPPER BRUSH CREEK ROAD MARSHALL, NORTH CAROLINA 28753 NCDENR INCIDENT NO. 41260 MSGS PROJECT NUMBER: MC18-01 Prepared by: Martin&Slagle GeoSciences, PA PO Box 1023 Black Mountain, North Carolina 28711 (828) 669-3929 FAX (828) 669-5289 February 2020 Brush Creek Elementary School, Madison County, NC Aggressive Fluid Vapor Recovery Report, February 2020 Incident #41260 1 INTRODUCTION Martin & Slagle GeoSciences, P.A. (MSGS) was retained by Madison County Board of Education to provide environmental consulting services associated with a release of heating oil from product lines associated with a commercial underground storage tank (UST) system located at Brush Creek Elementary School, 265 Upper Brush Creek Road, Marshall, North Carolina. This report documents the results of three Aggressive Fluid Vapor Recovery (AFVR) events completed on October 25, November 22 and December 16, 2019 at the school. The release has been assigned Incident Number 41260 by the North Carolina Department of Environmental Quality (NCDEQ), UST Section. To date, following reports have been submitted to NCDEQ: • Limited Site Assessment (LSA), January 2017; • Comprehensive Site Assessment (CSA), March 2018; • Mobile Multi-Phase Extraction (MMPE) and Vapor Intrusion (VI) Results, February 2019; • Vapor Intrusion Assessment, September 2019; • Aggressive Fluid Vapor Recovery Report, October 2019. NCDEQ UST Section issued a Notice of Regulatory Requirements (NORR) for this incident on October 2, 2019 directing the responsible party to conduct monthly AFVR events at the site. A copy of the NORR is included in Appendix A. A. SITE INFORMATION The following sections provide information regarding the project site’s location, UST system, contact information, and known details relating to the release. A vicinity map is provided as Figure 1, and a site map is provided as Figure 2. Brush Creek Elementary School, Madison County, NC Aggressive Fluid Vapor Recovery Report, February 2020 Incident #41260 2 A.1 Site Identification Report Date: February 25, 2020 Facility ID: N/A UST Incident No.: 41260 Site Name: Brush Creek Elementary School Site Street Address: 265 Upper Brush Creek Road City/Town: Marshall Zip Code: 28753 County: Madison A.2 UST System Contact Information UST Owner: Madison County Board of Education 5738 US Highway 25-70 Marshall, NC 28753 828-649-2424 UST Operator: Madison County Board of Education Property Owner: Madison County Board of Education Property Occupant: Madison County Board of Education Brush Creek Elementary School Consultant: Martin & Slagle GeoSciences, PA PO Box 1023 Black Mountain, NC 28711 828-669-3929 Brush Creek Elementary School, Madison County, NC Aggressive Fluid Vapor Recovery Report, February 2020 Incident #41260 3 Laboratory: Pace Analytical Services, LLC 2225 Riverside Drive Asheville, NC 28804 A.3 Release Information On September 16, 2014, free-product heating oil was observed in a drainage ditch behind the school gymnasium and cafeteria by school employees. Approximately 4,000 to 5,000 gallons of fuel oil were estimated to have been released from a compromised buried fuel line associated with a heating oil UST. Initial emergency response efforts recovered approximately 1,500 gallons of fuel by vacuuming free product from the water table from temporary wells and from the surface water in the drainage ditch. Sorbent booms were installed on the surface water where oil was discharging. The drainage ditch leads to a constructed wetland maintained and monitored by students at the school. Certification I, Robert L. Martin, a Licensed Geologist for Martin & Slagle, GeoSciences, PA, do certify that the information contained in this report is correct and accurate to the best of my knowledge. ________________________________ Robert L. Martin, LG Principal Geologist NC Licensed Geologist No. 391 Martin & Slagle, GeoSciences, PA is licensed to practice geology in North Carolina. The certification number of the company or corporation is C-375. 2/25/20 Brush Creek Elementary School, Madison County, NC Aggressive Fluid Vapor Recovery Report, February 2020 Incident #41260 4 B. EXECUTIVE SUMMARY To date, MSGS has completed 11 eight-hour AFVR events and one 96-hour Mobile Multiphase Extraction (MMPE) event since submittal of the CSA report on March 30, 2018 to aggressively remove fuel oil free product from the subgrade at Brush Creek Elementary School. Two two-inch diameter monitoring wells and three four-inch diameter recovery wells are located within the free product plume. The three four-inch diameter recovery wells were installed on the site within the free product plume to a depth of 12.5 feet below ground surface prior to conducting the MMPE. The three most recent AFVR events were conducted on October 25, November 22 and December 16, 2019 at the school. The events ran for eight hours each. Data collected during the events were entered into a spreadsheet which calculated the total vapor emissions in pounds of vapor and liquid quantity in gallons. The three most recent AFVRs recovered a total of 1,226 gallons of combined water and product, 55.25 gallons of free product, and 134.38 lbs. of vapor emissions equivalent to 21.5 gallons of free product. The cumulative total volume of free product recovered since the release is 2,379.5 gallons. This event recovered slightly more free product than the last (76.75 gallons vs. 73.27 gallons). AVFR remains the more effective method for free product recovery at this site when evaluated against the MMPE results from 2018. Approximately 880 gallons of free product have been recovered by pumping the recovery trench (July 2015), and the AFVR and the MMPE events conducted since the emergency response activities. Approximately 50% of the estimated free product has been recovered. Therefore, this recovery method may produce diminishing results. MSGS recommends the following: • Continue the AFRV events on a monthly basis for the next three months. • During the next three months, alternate recovery methods should be evaluated to determine if they might be more efficient processes than AFVRs. Brush Creek Elementary School, Madison County, NC Aggressive Fluid Vapor Recovery Report, February 2020 Incident #41260 5 • Groundwater was last sampled August 16, 2017. A round of groundwater sampling and water/product level gauging should be conducted to determine if the free product plume and dissolved constituents in groundwater have migrated significantly since the last sampling event. Brush Creek Elementary School, Madison County, NC Aggressive Fluid Vapor Recovery Report, February 2020 Incident #41260 6 C. TABLE OF CONTENTS INTRODUCTION Section A Site Information………………………...………….………………………………………………….1 Section B Executive Summary…….…………………………………………………………………………….4 Section C Table of Contents………………………………………………………………………………………5 Section D Free Product Recovery-………………….……………….………………………………………..6 Section E Conclusion and Recommendations..………………………………………………………...7 Figures Figure 1 – Vicinity Map Figure 2 – Site Map Tables Table 1 – Free Product Recovery Information Table 2 – Cumulative Volume of Free Product Recovered from Site Table 3- Current and Historical Groundwater Elevations and Free Product Thickness Appendices Appendix A – NORR Appendix B – AFVR Spreadsheets and Waste Disposal Manifests Brush Creek Elementary School, Madison County, NC Aggressive Fluid Vapor Recovery Report, February 2020 Incident #41260 7 D. FREE PRODUCT RECOVERY Background Free-product recovery efforts have been on-going since the release was discovered. Free product was initially measured in the source area at depths up to three feet thick on the water table. A total of 13,770 gallons of mixed water/oil fluid and 2379.5 gallons of free product were recovered during emergency response activities, interceptor trench recovery, 11 AFVR events and one MMPE event. The AFVR recovery totals are summarized below: Event Date Total Recovery (Gallons) Total Free Product Incl Vapor (Gallons) 10/21/16 1530 94 11/30/16 641 110 06/02/17 500 51 09/29/17 850 157 03/16/18 550 86 06/21/19 500 19.33 07/19/19 300 26.06 08/16/19 1300 27.91 10/25/19 400 51.07 11/22/19 400 12.61 12/16/19 426 13.07 7397 648.05 Product has not been observed in MW-04 since the AFVR conducted on October 21, 2016. The free-product plume has retreated from MW-04 and appears to be limited to the area around MW-02, MW-03 and RW-03. The interceptor trench installed in 2015 was purged of fluid on March 16, 2018 but has not been used for product recovery since then due to the high groundwater levels. On August 6 through 10, 2018 a 96-hour MMPE event was conducted on three four-inch Brush Creek Elementary School, Madison County, NC Aggressive Fluid Vapor Recovery Report, February 2020 Incident #41260 8 diameter monitoring wells which were installed on the site within the free product plume. Figure 2 shows the locations of the monitoring and recovery wells. A total of 5,173 gallons of a mixture of groundwater and fuel oil recovered during the MMPE event were transported from the site and properly disposed of at VLS Recovery Services, LLC in Lexington, SC. The MMPE process did not recover a significant amount of free product. A total of 9.06 lbs. or 1.45 gallons of hydrocarbon emissions and about 30 gallons of free product (based on measurements in the tanker) were recovered. AFVR Results Three AFVR events were conducted on October 25, November 22 and December 16, 2019 at Brush Creek School. Prior to beginning the event, product was measured in wells within the free product. The two wells selected for each event that had the greatest depth of free product measured at the time of extraction. In each of the three events, the vacuum lines were connected to monitoring wells MW-2 (during the October 25 event), MW-3 (all events) and recovery well RW-2 (November 22 and December 16 events). The events ran for eight hours each. Air velocity, relative humidity, temperature and vapor concentration were recorded each hour during operation. At the end of the day recovered water and product levels were measured in the vacuum truck tank. Data collected during the event were entered into a spreadsheet which calculated the total vapor emissions in pounds of vapor and liquid quantity in gallons. Table 1, Table 2 and Table 3 summarize the recovery data for the AFVR and MMPE events. The emission data spreadsheets are included in Appendix B. Results The three most recent AFVRs recovered a total of 1,226 gallons of contaminated water, 55.25 gallons of free product, and 134.38 lbs. of vapor emissions equivalent to 56.22 gallons of free product. The cumulative total volume of free product recovered since the release is 2,379.5 gallons. Brush Creek Elementary School, Madison County, NC Aggressive Fluid Vapor Recovery Report, February 2020 Incident #41260 9 E. CONCLUSIONS AND RECOMMENDATIONS The most recent AVFRs recovered slightly more free product than the previous three events. This method remains effective for free product recovery at this site when evaluated against the MMPE results from 2018. However, other methods may provide better results. We may be approaching the limit of free product recovery having recovered approximately 50% of the total estimated release. MSGS recommends continuing the AFRV events on a monthly basis for at least the next three months. More effective recovery methods may replace AFVRs for this site. MSGS recommends the following: • Continue the AFRV events on a monthly basis for at least the next three months. • During the next three months, other recovery methods should be evaluated to determine if they may be more effective than AFVRs. • Groundwater was last sampled August 16, 2017. A round of groundwater sampling and water/product level gauging should be conducted to determine if the free product plume and dissolved constituents in groundwater have migrated significantly since the last sampling event. FIGURE 1PREPARED FOR: Madison County Schools DATE: 9-13-2019 DR: RLM CHK:RLM VICINITY MAP Vapor Intrusion Assessment Brush Creek Elementary School Marshall, NC MARTIN&SLAGLE GeoSciences, PA PO Box 1023 Black Mountain, NC 28711 828.669.3929 828.669.5289 Subject Site RW-2 AS-11 MW-2 RW-1 RW-3AS-01 AS-05 GeoSciences, PA PO Box 1023 Black Mountain NC 28711 828.669.3929 MARTIN&SLAGLE DR: RLM CHK: CES PREPARED FOR:SCALE: 1”=50’ (APPROX.) DATE: 10/10/19 SITE MAP Site Map Brush Creek Elementary School Marshall, NC FIGURE 2 GYMNASIUM STORAGE BUILDING STUDENT ENTRANCE OFFICECLASSROOMS PARKING EXISTING UST BOILER ROOM (SOURCE AREA) STUDENT WETLANDS PROJECT PARKING CAFETERIA MW-1 MW-4 INTERCEPTOR TRENCH FUEL OIL DISCHARGE TO DRAINAGE SWALE 0 25 50 SCALE (APPROX.) MW-6 MW-7 MW-5 AS-02 SW-1 SW -02 In Lower Brush Creek Madison County Board of Education AS-03 VI Air Sample LEGEND Free Product Plume 3/16/18 Free Product Plume 12/2/16 MW-3 VW-02-02 VW-01-02 AS-04 MECHANICAL ROOM AS-08 AS-09 AS-06AS-07 Ambient Air Sample RW-2-Recovery Well MW-2-Monitoring Well Table 1: Free Product Recovery Information Revision Date: 2/27/20 Incident Number and Name: 41260, Brush Creek Elementary School Date Well ID # Prod. Type Free Product Recovery Method* Product Thickness before Recovery (feet) Product Thickness after Recovery (feet) Amount of Vaporized Product Amount of Liquid (Water and Product) TOTAL Amount of Liquid Product TOTAL Total Amount of Product Recovered (gallons) 10/21/16 MW-02 Fuel Oil AFVR 3.15 0.48 NM * * * 10/21/16 MW-03 Fuel Oil AFVR 1.54 0.02 NM * * * 10/21/16 MW-04 Fuel Oil AFVR 0.6 0 NM * * * 10/21/16 All Wells Fuel Oil AFVR -- -- -- 1530 94 94 11/30/16 MW-02 Fuel Oil AFVR 2.9 0.57 NM * * * 11/30/16 MW-03 Fuel Oil AFVR 1.14 0.10 NM * * * 11/30/16 MW-04 Fuel Oil AFVR <.02 -- NM * * * 11/30/16 All Wells Fuel Oil AFVR -- -- NM 641 110 110 6/2/17 MW-02 Fuel Oil AFVR 1.48 0.22 - * * * 6/2/17 MW-03 Fuel Oil AFVR 1.13 0.15 -- * * * 6/2/17 All Wells Fuel Oil AFVR -- -- -- 500 51 51 9/29/17 MW-02 Fuel Oil AFVR 2.23 0.02 -- * * * 9/29/17 MW-03 Fuel Oil AFVR 1.25 0.0 -- * * * 9/29/17 All Wells Fuel Oil AFVR -- -- -- 850 157 157 3/16/18 MW-02 (See note 1.) Fuel Oil AFVR 0.45 0.06 -- * * * Date Well ID # Prod. Type Free Product Recovery Method* Product Thickness before Recovery (feet) Product Thickness after Recovery (feet) Amount of Vaporized Product Amount of Liquid (Water and Product) TOTAL Amount of Liquid Product TOTAL Total Amount of Product Recovered (gallons) 3/16/18 MW-03 Fuel Oil AFVR 1.1 0 * * * * 8/6- 8/10/18 RW-1 Fuel Oil MMPE 0 * * * * 8/6- 8/10/18 RW-2 Fuel Oil MMPE 0 * * * * 8/6- 8/10/18 RW-3 Fuel Oil MMPE 0 * * * * 8/6- 8/10/18 MW-2 Fuel Oil Measure- ment 0.08 0 -- -- -- -- 8/6- 8/10/18 MW-3 Fuel Oil Measure- ment 1.03 0.52 -- -- -- -- 10/3/18 MW-2 Fuel Oil Measure- ment 0.22 -- -- -- -- -- 10/3/18 MW-3 Fuel Oil Measure- ment 0.52 -- -- -- -- -- 10/3/18 RW-1 Fuel Oil Measure- ment 0.16 -- -- -- -- -- 10/3/18 RW-2 Fuel Oil Measure- ment 0.55 -- -- -- -- -- 10/3/18 RW-3 Fuel Oil Measure- ment 0.05 -- -- -- -- -- 10/30/18 MW-2 Fuel Oil Measure- ment 1.74 -- -- -- -- -- 10/30/18 MW-3 Fuel Oil Measure- ment 0.6 -- -- -- -- -- 10/30/18 RW-1 Fuel Oil Measure- ment 0.04 -- -- -- -- -- 10/30/18 RW-2 Fuel Oil Measure- ment 1.19 -- -- -- -- -- 10/30/18 RW-3 Fuel Oil Measure- ment -- -- -- -- -- -- 6/21/19 MW-3 Fuel Oil AFVR 0.39 -- 1.33 500 18 19.33 6/21/19 RW-2 Fuel Oil AFVR 1.16 0.10 -- -- -- 7/19/19 MW-3 Fuel Oil AFVR 0.64 -- 5.06 300 21 26.06 7/19/19 RW-2 Fuel Oil AFVR 0.26 -- 8/16/19 MW-3 Fuel Oil AFVR 0.87 0.18 3.91 1300 24 27.91 8/16/19 RW-2 Fuel Oil AFVR 0.41 -- 10/25/19 MW-2 Fuel Oil AFVR 0.33 0.02 12.07 400 39 51.07 10/25/19 RW-2 Fuel Oil AFVR 0.25 -- 11/22/19 MW-3 Fuel Oil AFVR 0.73 0.01 6.61 400 6 12.61 11/22/19 RW-2 Fuel Oil AFVR 0.40 -- 12/16/19 MW-3 Fuel Oil AFVR 0.35 0.01 2.82 426 10.25 13.07 12/16/19 RW-2 Fuel Oil AFVR 0.25 -- All Wells Fuel Oil MMPE -- -- 1.45 5,173 30 31.45 * Product recovery was conducted on three wells simultaneously. Individual measurements not collected. Note 1. The oil water interface was measured above the top of screen elevation. Table B-2: Cumulative Volume of Free Product Recovered from Site * Includes Free Product Recovery since 2015. Date of Recovery Event (m/dd/yy) Total Volume Recovered from Site During Current Recovery Event (gallons) Cumulative Total of Volume Recovered to Date from All Recovery Events (gallons)* 6/2/17-12/16/19 76.75 2,379.5 Table 3: Current and Historical Groundwater Elevations and Free Product Thickness Revision Date: 2/27/20 Incident Number and Name: 41260, Brush Creek Elementary School Well ID # Date Screened Interval (top of screen, bottom of screen) Depth to Water* Uncorrected (feet) Free Product Thickness (feet) Depth to Water* Corrected for Free Product Thickness (feet) Top of Casing Elevation (MSL) Groundwater Surface Elevation (MSL) MW-02 10/21/16 5 - 10 8.78 3.15 6.13 1906.11 1899.98 MW-03 10/21/16 2 - 12 6.63 1.54 5.34 1905.21 1899.87 MW-04 10/21/16 2 - 12 5.84 0.6 5.32 1904.97 1899.63 MW-02 11/30/16 5-10 9.25 2.9 6.81 1906.11 1899.30 MW-03 11/30/16 2 - 12 6.68 1.14 5.72 1905.21 1899.49 MW-04 11/30/16 2 - 12 5.30 0 5.30 1904.97 1899.67 MW-02 6/2/17 5 - 10 4.32 -- -- 1906.11 -- MW-03 6/2/17 2-12 2.71 0.79 2.05 1905.21 1903.16 MW-02 9/29/17 5-10 4.70 2.23 5.06 1906.11 1901.05 MW-03 9/29/17 2-12 3.90 1.25 3.9 1905.21 1901.31 MW-02 3/16/18 5-10 3.1 -- -- 1906.11 -- MW-03 3/16/18 2-12 2.81 1.10 1.88 1905.21 1903.33 MW-02 10/30/18 5-10 5.21 1.74 3.7 1906.11 1902.41 MW-03 10/30/18 2-10 3.21 0.6 2.69 1905.21 1902.52 MW-3 6/21/19 2-12 2.4 0.39 2.96 1906.11 1903.15 RW-2 6/21/19 2.5-12.5 4.01 1.16 -- -- -- MW-3 7/19/19 2-12 2.30 0.64 2.65 1906.11 1903.46 RW-2 7/19/19 2.5-12.5 3.04 0.26 -- -- -- MW-3 8/16/19 2-12 3.12 0.87 2.45 1906.11 1903.66 RW-2 8/16/19 2.5-12.5 4.3 0.41 -- -- -- MW-3 10/25/19 2-12 -- -- -- -- -- RW-2 10/25/19 2.5-12.5 -- -- -- -- -- MW-3 11/22/19 2-12 3.45 0.73 2.82 1906.11 1903.29 RW-2 11/22/19 2.5-12.5 4.60 0.40 -- -- -- MW-3 12/16/19 2-12 1.85 0.35 1.55 1906.11 1904.56 RW-2 12/16/19 2.5-12.5 2.83 0.25 -- -- -- APPENDIX A Notice of Regulatory Requirements APPENDIX B AFVR and MMPE Data Spreadsheet and Waste Disposal Manifests Site: Store #277, 113 State Street, Holly Hill, SCBrush Creek Elementary School, 267 Upper Brush Creek Rd., Marshall, NC 1 6 10/25/19 - 0900 60 1000 60 1100 60 1200 60 1300 60 1400 60 1500 60 1600 60 1700 60 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0.138 70 0 1 0 0 0.000000 0.00 70 0.100 0.000000 0.00 0.138 70 0 1 0 0700.100 0 1 0 0 0.000000 0.00 0.000000 0.00 70 0.100 0.138 70 0.138 70 0 1 0 0700.100 0 1 0 0 0.000000 0.00 0.000000 0.00 70 0.100 0.138 70 0.138 70 0 1 0 0700.100 0 1 0 0 0.000000 0.00 0.000000 0.00 70 0.100 0.138 70 0.138 70 0 1 0 0700.100 0 1 0 0 0.000000 0.00 0.000000 0.00 70 0.100 0.138 70 0.138 70 0 1 0 0700.100 0 1 0 0 0.000000 0.00 0.000000 0.00 70 0.100 0.138 70 0.138 70 0 1 0 0 0 0.000000 0.00 70 0.1000.0 0.100 0.138 70 0 1 0 1 0 0 0.000000 0.00 70 0.00 70 0.100 0.138 70 0 70 0 1 0 0 0.000000 0.000000 0.00 70 0.1000.0 0.138 0.138 70 0 1 0 0700.100 0 1 0 0 0.000000 0.00 0.000000 0.00 70 0.100 0.138 70 0.138 70 0 1 0 0 0 0 0.000000 0.00 70 0.100 5.75 0.138 0 0 1 0.0 0.138 3478 83 1 83 544 0.000034 8.84 131 13.1 4500 0.100 441 0.000028 0.0 0.138 4340 102 1 10213812.8 5682 0.100 0 1 0 0 0.000000 0.00 0 0.000000 0.00 70 0.138 70 0.100 0.138 70 0 1 0 1 0 0 0.000000 0.00 70 10.02 70 0.100 0.138 70 0 0.138 3906 129 1 129 68514011.2 5130 0.1000.0 0.138 3578 162 162 8641 0.138 4113 117 1 117 141 10.4 4707 0.100 121 15.4 5231 0.1000.0 4127 560 0.000035 8.651051051 0.100 0.138 3852 131 117 11.8 5213 0.100 0.138 Mass Conc (mg/m3) 0.0 70 22.1 4856 13.4 4823 0.100 0.138 70 0 1 Dry Conc (PPMv) 0.100 0.138 3912 1 Job# 0.138 0 0 Stack Dia(in): Mass Removed (lb) MC19-01 4433 Meters: MiniRae 3000 PID, RH pen Temp (0 F) Response Factor Corrected Conc (PPMv) 05435 Water Vapor (vol %) Flow Qstd (dscfm) 0.100 1 Specific Humidity (lbW / lbDA) Pre PPMmea (PPMv) Flow (acfm) 0.0 0.0 0.0 34.0 RH (%) 113.0 0.0 0.0 0.0 107 100 0.0 0.0 112 140 1 0 0 0.000000 623 0.000039 0.000047140 131 10.06 10/25/19 0.00 Mass Conc (lb/ft3) 0.000000 747 Response Factor: 0.000054 0.000043 0.0 11.58 0.0 0.0 0.0 0.100 0.0 0.100 0.00 9.60 697 0.000044 0.0 0.0 0.0 0.0 0.0 AFVR Data Sheet - Emissions Data & Calculation Client: Madison County Board of Education 0.0 0.0 0.0 Post PPMmea (PPMv) Time (h:m)Delta Time(min)10.94 0.0 0.0 0.0 0.0 71.5 88.1 140.0 90.7 121.0 101.0 111.0 Site: Store #277, 113 State Street, Holly Hill, SCBrush Creek Elementary School, 267 Upper Brush Creek Rd., Marshall, NC 1 6 10/25/19 - 0900 60 Mass Conc (mg/m3) Dry Conc (PPMv) Job# 0.138 0 0 Stack Dia(in): Mass Removed (lb) MC19-01 4433 Meters: MiniRae 3000 PID, RH pen Temp (0 F) Response Factor Corrected Conc (PPMv) 05435 Water Vapor (vol %) Flow Qstd (dscfm) 0.100 1 Specific Humidity (lbW / lbDA) Pre PPMmea (PPMv) Flow (acfm) 34.0 RH (%) 100 10/25/19 0.00 Mass Conc (lb/ft3) 0.000000 Response Factor: AFVR Data Sheet - Emissions Data & Calculation Client: Madison County Board of Education Post PPMmea (PPMv) Time (h:m)Delta Time(min)0.0 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 Temp = Measured temperature (0F)Total emissions, pounds RH = Measured relative humidity (%)Total emissions, gallons (6.25 lb/gal) Flow = Actual Flow Volume (cfm) Specific Humidity = data from psychrometric chart at measured Temp and RH (lb water/lb dry air) (lbW / lbDA) Water Vapor = % water vapor on a volume basis = (Specific Humidity / 18 lb-mole H2O) / [(1 / 28.84 lb-mole dry air) + (Specific Humidity / 18 lb-mole H2O)] Qstd = Flow volume on a dry basis at a standard temperature of 700 F = (1-Water Vapor) (Flow) [5300R / (Temp +460)] Dry Conc = PPMv VOC on a dry basis = [PPMmea / (1-Water Vapor)] Response Factor of OVA/TVA meter; 1 if response factor is unknown Corrected Conc = Dry Conc PPMv VOC corrected by Response Factor = (Dry Conc) (Response Factor) Mass Conc (mg/m3) = Mass concentration VOC as gasoline dry basis at standard temperature = (Corrected Conc) (128 mg/mg-mole / 24.07 m3/mg-mole) Mass Conc (lb/ft3) = [Mass Conc (mg/m3)] [(6.243 * 10-8)(lb/ft3)/(mg/m3)] Mass Removed (lb) = [Mass Conc (lb/ft3)] [Qstd (dscfm)] [Time Interval (min)] 0.000000 0.000.138 70 0 1 0 0 0 0.000000 0.00 0.0 70 0.100 0.100 0.138 70 0 1 00.0 70 0 1 0 0 0.000000 0.00 0.00 0.0 70 0.100 0.138 70 70 0 1 0 0 0.000000 0.000000 0.00 0.0 70 0.100 0.138 0.138 70 0 1 0 0 0 0.000000 0.00 0.0 70 0.100 0.100 0.138 70 0 1 00.0 70 0 1 0 0 0.000000 0.00 0.00 0.0 70 0.100 0.138 70 70 0 1 0 0 0.000000 0.000000 0.00 0.0 70 0.100 0.138 0.100 0.138 70 0 1 00.0 70 0 1 0 0 0.000000 0.00 0 0 0.000000 0.00 70 0.100 0.138 0.0 70 70 0.100 0.138 70 0 1 0 0 0.000000 0.007000.100 0.138 70 75.43 12.07 0.0 0.0 0.0 70 70 0.0 0.0 70 70 0.138 0.138 0.100 0.100 0.100 0.138 70 70 0 0 1 1 0 0 1 0 0 1 0.00 0.00 0.000000 0.000000 0 0 0 0.000000 0.00 0 Site: Store #277, 113 State Street, Holly Hill, SCBrush Creek Elementary School, 267 Upper Brush Creek Rd., Marshall, NC 1 6 11/22/19 - 0730 60 0830 60 0930 60 1030 60 1130 60 1230 60 1330 60 1430 60 1530 60 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0.138 70 0 1 0 0 0.000000 0.00 70 0.100 0.000000 0.00 0.138 70 0 1 0 0700.100 0 1 0 0 0.000000 0.00 0.000000 0.00 70 0.100 0.138 70 0.138 70 0 1 0 0700.100 0 1 0 0 0.000000 0.00 0.000000 0.00 70 0.100 0.138 70 0.138 70 0 1 0 0700.100 0 1 0 0 0.000000 0.00 0.000000 0.00 70 0.100 0.138 70 0.138 70 0 1 0 0700.100 0 1 0 0 0.000000 0.00 0.000000 0.00 70 0.100 0.138 70 0.138 70 0 1 0 0700.100 0 1 0 0 0.000000 0.00 0.000000 0.00 70 0.100 0.138 70 0.138 70 0 1 0 0 0 0.000000 0.00 70 0.1000.0 0.100 0.138 70 0 1 0 1 0 0 0.000000 0.00 70 0.00 70 0.100 0.138 70 0 70 0 1 0 0 0.000000 0.000000 0.00 70 0.1000.0 0.138 0.138 70 0 1 0 0700.100 0 1 0 0 0.000000 0.00 0.000000 0.00 70 0.100 0.138 70 0.138 70 0 1 0 0 0 0 0.000000 0.00 70 0.100 2.18 0.138 0 0 1 0.0 0.138 3671 30 1 30 189 0.000012 2.77 122 16.1 4674 0.100 159 0.000010 0.0 0.138 3908 36 1 3612515.7 5006 0.100 0 1 0 0 0.000000 0.00 0 0.000000 0.00 70 0.138 70 0.100 0.138 70 0 1 0 1 0 0 0.000000 0.00 70 2.59 70 0.100 0.138 70 0 0.138 3508 37 1 37 19712016.6 4450 0.1000.0 0.138 3960 49 49 2631 0.138 4656 56 1 56 123 14.3 5058 0.100 124 13.4 5955 0.1000.0 3403 320 0.000020 4.0760601 0.100 0.138 4100 79 105 18.3 4210 0.100 0.138 Mass Conc (mg/m3) 0.0 70 17.5 4941 13.7 5195 0.100 0.138 70 0 1 Dry Conc (PPMv) 0.100 0.138 3967 1 Job# 0.138 167 887 Stack Dia(in): Mass Removed (lb) MC19-01 2280 Meters: MiniRae 3000 PID, RH pen Temp (0 F) Response Factor Corrected Conc (PPMv) 1672737 Water Vapor (vol %) Flow Qstd (dscfm) 0.100 1 Specific Humidity (lbW / lbDA) Pre PPMmea (PPMv) Flow (acfm) 0.0 0.0 0.0 60.1 RH (%) 68.0 0.0 0.0 0.0 109 89 0.0 0.0 119 84 1 0 0 0.000000 297 0.000019 0.00002884 79 6.44 11/22/19 7.58 Mass Conc (lb/ft3) 0.000055 445 Response Factor: 0.000016 0.000012 0.0 3.90 0.0 0.0 0.0 0.100 0.0 0.100 0.00 5.18 420 0.000026 0.0 0.0 0.0 0.0 0.0 AFVR Data Sheet - Emissions Data & Calculation Client: Madison County Board of Education 0.0 0.0 0.0 Post PPMmea (PPMv) Time (h:m)Delta Time(min)6.62 0.0 0.0 0.0 0.0 25.7 30.7 42.6 51.8 72.2 143.8 48.1 31.9 Site: Store #277, 113 State Street, Holly Hill, SCBrush Creek Elementary School, 267 Upper Brush Creek Rd., Marshall, NC 1 6 11/22/19 - 0730 60 Mass Conc (mg/m3) Dry Conc (PPMv) Job# 0.138 167 887 Stack Dia(in): Mass Removed (lb) MC19-01 2280 Meters: MiniRae 3000 PID, RH pen Temp (0 F) Response Factor Corrected Conc (PPMv) 1672737 Water Vapor (vol %) Flow Qstd (dscfm) 0.100 1 Specific Humidity (lbW / lbDA) Pre PPMmea (PPMv) Flow (acfm) 60.1 RH (%) 89 11/22/19 7.58 Mass Conc (lb/ft3) 0.000055 Response Factor: AFVR Data Sheet - Emissions Data & Calculation Client: Madison County Board of Education Post PPMmea (PPMv) Time (h:m)Delta Time(min)0.0143.8 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 Temp = Measured temperature (0F)Total emissions, pounds RH = Measured relative humidity (%)Total emissions, gallons (6.25 lb/gal) Flow = Actual Flow Volume (cfm) Specific Humidity = data from psychrometric chart at measured Temp and RH (lb water/lb dry air) (lbW / lbDA) Water Vapor = % water vapor on a volume basis = (Specific Humidity / 18 lb-mole H2O) / [(1 / 28.84 lb-mole dry air) + (Specific Humidity / 18 lb-mole H2O)] Qstd = Flow volume on a dry basis at a standard temperature of 700 F = (1-Water Vapor) (Flow) [5300R / (Temp +460)] Dry Conc = PPMv VOC on a dry basis = [PPMmea / (1-Water Vapor)] Response Factor of OVA/TVA meter; 1 if response factor is unknown Corrected Conc = Dry Conc PPMv VOC corrected by Response Factor = (Dry Conc) (Response Factor) Mass Conc (mg/m3) = Mass concentration VOC as gasoline dry basis at standard temperature = (Corrected Conc) (128 mg/mg-mole / 24.07 m3/mg-mole) Mass Conc (lb/ft3) = [Mass Conc (mg/m3)] [(6.243 * 10-8)(lb/ft3)/(mg/m3)] Mass Removed (lb) = [Mass Conc (lb/ft3)] [Qstd (dscfm)] [Time Interval (min)] 0.000000 0.000.138 70 0 1 0 0 0 0.000000 0.00 0.0 70 0.100 0.100 0.138 70 0 1 00.0 70 0 1 0 0 0.000000 0.00 0.00 0.0 70 0.100 0.138 70 70 0 1 0 0 0.000000 0.000000 0.00 0.0 70 0.100 0.138 0.138 70 0 1 0 0 0 0.000000 0.00 0.0 70 0.100 0.100 0.138 70 0 1 00.0 70 0 1 0 0 0.000000 0.00 0.00 0.0 70 0.100 0.138 70 70 0 1 0 0 0.000000 0.000000 0.00 0.0 70 0.100 0.138 0.100 0.138 70 0 1 00.0 70 0 1 0 0 0.000000 0.00 0 0 0.000000 0.00 70 0.100 0.138 0.0 70 70 0.100 0.138 70 0 1 0 0 0.000000 0.007000.100 0.138 70 41.33 6.61 0.0 0.0 0.0 70 70 0.0 0.0 70 70 0.138 0.138 0.100 0.100 0.100 0.138 70 70 0 0 1 1 0 0 1 0 0 1 0.00 0.00 0.000000 0.000000 0 0 0 0.000000 0.00 0 Site: Store #277, 113 State Street, Holly Hill, SCBrush Creek Elementary School, 267 Upper Brush Creek Rd., Marshall, NC 1 6 12/16/19 - 0850 60 0950 60 1050 60 1150 60 1250 60 1350 60 1450 60 1550 60 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 19.9 25.9 28.6 31.8 26.6 29.1 22.6 0.0 0.0 0.0 0.0 AFVR Data Sheet - Emissions Data & Calculation Client: Madison County Board of Education 0.0 0.0 0.0 Post PPMmea (PPMv) Time (h:m)Delta Time(min)2.37 0.00 2.38 219 0.000014 0.0 0.0 0.0 0.0 0.0 0.0 2.16 0.0 0.0 0.0 0.100 0.0 0.100 2.52 12/16/19 2.27 Mass Conc (lb/ft3) 0.000010 196 Response Factor: 0.000010 0.000009 37 1 0 0 0.000000 180 0.000011 0.00001237 410.0 0.0 0.0 115 104 0.0 0.0 118 Pre PPMmea (PPMv) Flow (acfm) 0.0 0.0 0.0 17.8 RH (%) 35.5 Response Factor Corrected Conc (PPMv) 314549 Water Vapor (vol %) Flow Qstd (dscfm) 0.100 1 Specific Humidity (lbW / lbDA) Job# 0.138 31 164 Stack Dia(in): Mass Removed (lb) MC19-01 3686 Meters: MiniRae 3000 PID, RH pen Temp (0 F) 0.100 0.138 70 0 1 Dry Conc (PPMv) 0.100 0.138 3223 1 Mass Conc (mg/m3) 0.0 70 16.6 4057 17.1 3891 0.100 0.138 3074 41 123 16.0 4550 0.100 0.138 3563 176 0.000011 2.3533331 126 15.0 4533 0.1000.0 0.138 3532 34 1 34 127 15.1 4635 0.100 0.138 3606 30 30 1601 127 14.7 4772 0.1000.0 0.138 3714 26 1 26 139 1.94 70 0.100 0.138 70 0 1 0 0 0.000000 0.00 70 0.100 0.138 70 0 1 0 0 0.000000 0.00 70 0.138 70 0 1 0 0 0.000000 0.00 126 14.7 4568 0.1000.0 0.138 3562 23 1 23 123 0.000008 1.64 0.100 0 0.0000000.0 0.138 0 0 1 0 0.00 0.138 0 0 1 0 0 0.000000 0.00 70 0.100 0.138 70 0 1 0 0 0.000000 0.00 70 0.100 0.138 70 0 1 0 0 0.000000 0.00 70 0.100 0.138 70 0 1 0 0 0.000000 0.00 70 0.1000.0 0.138 70 0 1 0 0 0.000000 0.00 70 0.100 0.138 70 0 1 0 0 0.000000 0.00 70 0.100 0.138 70 0 1 0 0 0.000000 0.00 70 0.1000.0 0.138 70 0 1 0 0 0.000000 0.00 70 0.100 0.138 70 0 1 0 0 0.000000 0.00 70 0.100 0.138 70 0 1 0 0 0.000000 0.00 70 0.100 0.138 70 0 1 0 0 0.000000 0.00 70 0.100 0.138 70 0 1 0 0 0.000000 0.00 70 0.100 0.138 70 0 1 0 0 0.000000 0.00 70 0.100 0.138 70 0 1 0 0 0.000000 0.00 70 0.100 0.138 70 0 1 0 0 0.000000 0.00 70 0.100 0.138 70 0 1 0 0 0.000000 0.00 70 0.100 0.138 70 0 1 0 0 0.000000 0.00 70 0.100 0.138 70 0 1 0 0 0.000000 0.00 70 0.100 0.000000 0.000.138 70 0 1 0 0 Site: Store #277, 113 State Street, Holly Hill, SCBrush Creek Elementary School, 267 Upper Brush Creek Rd., Marshall, NC 1 6 12/16/19 - 0850 60 26.6 0.0 AFVR Data Sheet - Emissions Data & Calculation Client: Madison County Board of Education Post PPMmea (PPMv) Time (h:m)Delta Time(min)12/16/19 2.27 Mass Conc (lb/ft3) 0.000010 Response Factor: 104 Pre PPMmea (PPMv) Flow (acfm) 17.8 RH (%) Response Factor Corrected Conc (PPMv) 314549 Water Vapor (vol %) Flow Qstd (dscfm) 0.100 1 Specific Humidity (lbW / lbDA) Job# 0.138 31 164 Stack Dia(in): Mass Removed (lb) MC19-01 3686 Meters: MiniRae 3000 PID, RH pen Temp (0 F) Dry Conc (PPMv) Mass Conc (mg/m3) 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 Temp = Measured temperature (0F)Total emissions, pounds RH = Measured relative humidity (%)Total emissions, gallons (6.25 lb/gal) Flow = Actual Flow Volume (cfm) Specific Humidity = data from psychrometric chart at measured Temp and RH (lb water/lb dry air) (lbW / lbDA) Water Vapor = % water vapor on a volume basis = (Specific Humidity / 18 lb-mole H2O) / [(1 / 28.84 lb-mole dry air) + (Specific Humidity / 18 lb-mole H2O)] Qstd = Flow volume on a dry basis at a standard temperature of 700 F = (1-Water Vapor) (Flow) [5300R / (Temp +460)] Dry Conc = PPMv VOC on a dry basis = [PPMmea / (1-Water Vapor)] Response Factor of OVA/TVA meter; 1 if response factor is unknown Corrected Conc = Dry Conc PPMv VOC corrected by Response Factor = (Dry Conc) (Response Factor) Mass Conc (mg/m3) = Mass concentration VOC as gasoline dry basis at standard temperature = (Corrected Conc) (128 mg/mg-mole / 24.07 m3/mg-mole) Mass Conc (lb/ft3) = [Mass Conc (mg/m3)] [(6.243 * 10-8)(lb/ft3)/(mg/m3)] Mass Removed (lb) = [Mass Conc (lb/ft3)] [Qstd (dscfm)] [Time Interval (min)] 0.00 0.00 0.000000 0.000000 0 0 0 0.000000 0.00 0 0 0 1 1 0 0 1 0 0 1 70 70 0.138 0.138 0.100 0.100 0.100 0.138 70 70 70 70 0.0 0.0 0.0 0.0 0.0 17.62 2.82 70 00.100 0.138 70 1 0 0 0.000000 0.00 70 0.100 0.138 70 0 0.0 70 0 0 0.000000 0.00 70 0.100 0.138 0 1 0 0 0.000000 0.00 0.0 70 0.100 0.138 70 0 1 0 0.000000 0.00 0.0 70 0.100 0.138 70 0 1 0 0 0.000000 0.00 0.0 70 0.100 0.138 70 0 1 0 0 0.000000 0.00 0.0 70 0.100 0.138 70 0 1 0 0 0.000000 0.00 0.0 70 0.100 0.138 70 0 1 0 0 0.000000 0.00 0.0 70 0.100 0.138 70 0 1 0 0 0.000000 0.00 0.0 70 0.100 0.138 70 0 1 0 0 0.000000 0.00 0.0 70 0.100 0.138 70 0 1 0 0 0.000000 0.00 0.0 70 0.100 0.138 70 0 1 0 0 0.000000 0.00