E NGIN E E R S P LAN NE R S S C I E N TI S T S C ON S TR UC TI ON M AN AG ER S 936 RIDGEBROOK ROAD SPARKS, MD 21152 410-316-7800 (FAX) 410-316-7935 MCPS RADON TESTING Executive Summary: Rockville High School Date of Test Report: Round of Testing: # Rooms Tested: # Rooms ≥ 4.0 pCi/L: Low Value: High Value: 2/10/2016 Initial Follow-up Post Remediation 105 0 < 0.3 2.6 Project Status: Initial testing completed; missing or compromised samples need re-test. KC I T E C H N O L O G I E S , I N C . www.kci.com Employee-Owned Since 1988 E NGIN E E R S P LAN NE R S S C I E N TI S T S C ON S TR UC TI ON M AN AG ER S 936 RIDGEBROOK ROAD SPARKS, MD 21152 410-316-7800 (FAX) 410-316-7935 February 10, 2016 Mr. Richard Cox Indoor Air Quality Team Leader Montgomery County Public Schools 850 Hungerford Drive Rockville, MD 20850 Re: Radon Testing Services KCI Job # 12146341.24 Location: Rockville High School 2100 Baltimore Road Rockville, MD 20851 Dear Mr. Cox: KCI Technologies, Inc. (KCI) is pleased to submit the following report to the Montgomery County Public Schools (MCPS) pursuant to completing a “short-term” 3 day radon test for the Rockville High School, located at 2100 Baltimore Road in Rockville, Maryland 20851 (subject site). Scope of Services: KCI conducted radon testing at the subject site to evaluate indoor radon levels relative to the USEPA's recommended action level of 4.0 picocuries per Liter (pCi/L) - the level at which EPA recommends that schools take action to reduce the level. KCI conducted the radon testing in accordance with American Association of Radon Scientists and Technologists (AARST) Protocol for Conducting Measurements of Radon and Radon Decay Products in Schools and Large Buildings. A National Radon Safety Board (NRSB) Radon Measurement Specialist (certification #14SS056) supervised the testing. Additional information on radon management and the health effects of radon exposure is available from www.montgomerycountymd.gov/dep/air/radon or www.epa.gov/radon. KCI visited the site on January 11, 2016 and deployed one hundred thirty (130) activated charcoal (AC) radon test kits. KCI deployed radon test kits in frequently-occupied ground contact rooms, and other areas, (if applicable) in accordance with AARST guidance. A floor plan map of the building with the test locations is included as Attachment A of this report. As a quality control measure, KCI included duplicate samples, field blanks, lab transit blanks, and office blanks in accordance with AARST recommendations. In addition, KCI submitted six (6) test kits to Bowser-Morner, Inc. as spike samples. The spiked tests were exposed to a known radon concentration by Bowser-Morner prior to being returned to the laboratory for analysis. KCI returned to the site on January 14, 2016 to retrieve the radon sampling test kits. KCI shipped all radon tests via overnight delivery to Airchek, Inc. for analysis by gamma-ray spectroscopy. Airchek, Inc. is a NRSB certified analytical laboratory for radon analysis (certification # ARL1402) located at 1936 KC I T E C H N O L O G I E S , I N C . www.kci.com Employee-Owned Since 1988 Mr. Richard Cox February 10, 2016 Page 3 Butler Bridge Road, Mills River, North Carolina. Evaluation of Testing Conditions: The operating condition that represents the greatest amount of significantly occupied time for this building is; heating active, with outdoor temperature averages ≤ 65° F. KCI concludes that the test period reasonably represents normal conditions when the building is significantly occupied. Clear characterization of the radon hazard is most likely to be observed under this normal operating condition. Based on the evaluation of test conditions, this test should reasonably characterize radon hazards. KCI also conducted observations of field conditions which could affect the results of the test and compiled weather data for the testing period. KCI recorded observations of the following conditions in each room at the time of deployment and collection of the radon test kits: Indoor temperature, HVAC Operation, Dehumidifier operation, Humidifier operation, Ceiling fan operation, and Open windows or doors. Results: The results of the radon test analysis indicated the following: Radon Concentration ≥4.0 piC/L <4.0 piC/L Room none Result n/a See Attachment B Notes: D- Duplicate sample All field blanks, office blank, and lab transit blanks had test results of less than the laboratory detection limit of 0.3 pCi/L. Review of the duplicate sample analysis indicates that adequate laboratory measurement precision was achieved. The Spike sample analysis results indicate the laboratory is operating within statistical control limits. The sampling locations, field observations, and analytical results are listed on Table 1 (Attachment B). The laboratory analytical results are also attached (Attachment C). Laboratory results and exposure data for the spike samples are also included in Attachment C. Our professional services have been performed in accordance with customary principles and practices in the field of industrial hygiene and engineering. If you have any questions or comments regarding this report, please feel free to contact me at (410) 316-7800. KC I T E C H N O L O G I E S , I N C . www.kci.com Employee-Owned Since 1988 Mr. Richard Cox February 10, 2016 Page 4 Sincerely, H. Allen Bennett Certified Industrial Hygienist KCI Technologies, Inc. Attachments: A- Floor Plan with Test Locations B- Table 1-Radon Test Summary Spreadsheet C- Laboratory Analytical Results KC I T E C H N O L O G I E S , I N C . www.kci.com Employee-Owned Since 1988 ATTACHMENT A Floor Plan With Test Locations Legend X- Sample Location Legend X- Sample Location Legend X- Sample Location ATTACHMENT B Radon Test Summary Spreadsheet Radon Testing Results Rockville High School Test Period: 01/11/16-01/14/16 Kit Number 7721932 7721918 7721936 7721926 7721914 7721983 7721984 7721981 7721988 7721992 7722000 7721997 7721996 7721999 7721994 7721986 7721998 7712551 7712550 7721989 7721990 7712544 7712541 7721993 7712540 7712537 7712535 7721938 7721939 7721941 7721946 7721950 7721943 7721977 7721980 7721979 7721972 7721975 7721971 7721964 7721965 7721952 7721959 7721948 7721961 7721951 Table Note: * Missing or Compromised Sample Room / Area 1000 1000 1001 1002 1003 1005 1011 1012 1013 1015 1017 1019 1020 1021 1022 1023 1024 1025 1027 1030 1032 1033 1035 1036 1037 1038 1039 1049 1054 1054 1057 1059 1060 1062 1067 1069 1070 1075 1076 1076 1081 1083 1084 1089 1093 1095 Result < 0.3 < 0.3 < 0.3 0.5 < 0.3 0.6 < 0.3 0.6 < 0.3 < 0.3 1.3 0.7 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 0.6 < 0.3 < 0.3 0.6 < 0.3 0.7 0.7 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 0.6 < 0.3 < 0.3 < 0.3 0.9 0.7 1 0.7 0.8 0.8 1.1 0.9 2.2 2.6 < 0.3 0.8 < 0.3 Radon Testing Results Rockville High School Test Period: 01/11/16-01/14/16 Kit Number 7721949 7721947 7721944 7721940 7721957 7721953 7712542 7712563 7712538 7712539 7712562 7712536 7712546 7712570 7712574 7712553 7712532 7712554 7712555 7721928 7721920 7721902 7721937 7721934 7721933 7721921 7721923 7721919 7721925 7721922 7721929 7721927 7721924 7721909 7721910 7721915 7721912 7721904 7721906 7721908 7721917 7721913 7721931 7721974 7721987 7721978 7721985 7721995 7712545 7712547 Table Note: * Missing or Compromised Sample * Room / Area 1097 1097 1103 1105 1107 1109 2015 2015 2027 2039 2042 2051 2076 2101 2119 2034 3014 3019 3033 1000 B 1000 C 1002 A 1002 B 1002 C 1002 D 1002 E 1002 F 1002 H 1002 I 1002 J 1002 K 1002 L 1003 B 1003 C 1003 D 1003 H 1003 I 1003 J 1003 K 1003 L (Tampered) 1003 M 1003 N 1003A 1011 A 1011 D 1011 E 1013 D 1015 C 1031 B 1031 C Result 0.6 0.7 < 0.3 0.8 1.3 1 < 0.3 < 0.3 < 0.3 < 0.3 0.5 0.6 < 0.3 < 0.3 0.6 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 0.8 < 0.3 < 0.3 0.6 < 0.3 0.6 0.7 < 0.3 0.6 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 0.6 < 0.3 < 0.3 < 0.3 0.8 < 0.3 < 0.3 0.7 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 Radon Testing Results Rockville High School Test Period: 01/11/16-01/14/16 Kit Number 7721903 7721911 7721905 7721945 7721976 7721960 7721966 7721970 7721969 7721967 7721956 7721955 7722543 7722533 Table Note: * Missing or Compromised Sample * * * Room / Area 1050 PB 1053 A 1053 B 1055B 1070 A 1076 A 1080 (Missing) 1080 B 1080 D 1080C 1083 F 1095 B 2067 (Damaged -Voided by Lab) 3009 (Damaged -Voided by Lab) Result < 0.3 1 < 0.3 < 0.3 < 0.3 0.7 0 1.2 1.1 1.2 1.1 0.7 0 0 Radon Testing Results Rockville High School Test Period: 01/11/16-01/14/16 Kit Number 7721901 7721935 7721991 7712534 7712549 7721907 7721968 7721963 7721954 7712566 7712559 7721930 7721916 7721982 7721942 7721973 7721958 7712558 7720174 7721800 Table Note: * Missing or Compromised Sample QC Type D (1002) D (1003 N) D (1013) D (1024) D (1031 B) D (1053 A) D (1070 A) D (1081) D (1107) D (2042) D (2076) FB (1002) FB (1003 N) FB (1024) FB (1055 B) FB (1070 A) FB (1107) FB (3019) OB (0) OB (0) Result < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 1.1 0.8 1.1 1 0.6 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 Table Notes: AC- Activated Charcoal ACI- Air Chek, Inc. D- Duplicate FB- Field Blank KCI- KCI Technologies, Inc. OB- Office Blank PM- Project Manager QC- Quality Control ATTACHMENT C Laboratory Analytical Results February 10, ** LABORATORY ANALYSIS REPORT ** 2016 Radon test result report for: ROCKVILLE HIGH SCHOOL MAIN Kit # 7720174 7721800 7721918 7721932 7721928 7721920 7721936 7721901 7721926 7721930 7721902 7721937 7721934 7721933 7721921 7721923 7721919 7721925 7721922 7721929 7721927 7721914 7721924 7721909 7721910 7721915 7721912 7721904 7721906 7721908 7721917 7721913 7721916 7721935 7721931 7721983 7721984 Room Id 0 0 1000 1000 1000 B 1000 C 1001 1002 1002 1002 1002 A 1002 B 1002 C 1002 D 1002 E 1002 F 1002 H 1002 I 1002 J 1002 K 1002 L 1003 1003 B 1003 C 1003 D 1003 H 1003 I 1003 J 1003 K 1003 L 1003 M 1003 N 1003 N 1003 N 1003A 1005 1011 Started 2016-01-11 @ 3:00 pm 2016-01-11 @ 3:00 pm 2016-01-11 @ 9:00 am 2016-01-11 @ 9:00 am 2016-01-11 @ 9:00 am 2016-01-11 @ 9:00 am 2016-01-11 @ 9:00 am 2016-01-11 @ 9:00 am 2016-01-11 @ 9:00 am 2016-01-11 @ 9:00 am 2016-01-11 @ 9:00 am 2016-01-11 @ 9:00 am 2016-01-11 @ 9:00 am 2016-01-11 @ 9:00 am 2016-01-11 @ 9:00 am 2016-01-11 @ 9:00 am 2016-01-11 @ 9:00 am 2016-01-11 @ 9:00 am 2016-01-11 @ 9:00 am 2016-01-11 @ 9:00 am 2016-01-11 @ 9:00 am 2016-01-11 @ 10:00 am 2016-01-11 @ 10:00 am 2016-01-11 @ 10:00 am 2016-01-11 @ 10:00 am 2016-01-11 @ 10:00 am 2016-01-11 @ 10:00 am 2016-01-11 @ 10:00 am 2016-01-11 @ 10:00 am 2016-01-11 @ 10:00 am 2016-01-11 @ 10:00 am 2016-01-11 @ 10:00 am 2016-01-11 @ 10:00 am 2016-01-11 @ 10:00 am 2016-01-11 @ 10:00 am 2016-01-11 @ 12:00 pm 2016-01-11 @ 12:00 pm Ended 2016-01-14 @ 12:00 pm 2016-01-14 @ 12:00 pm 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 10:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 10:00 am 2016-01-14 @ 10:00 am pCi/L < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 0.5 ± 0.3 < 0.3 0.8 ± 0.3 < 0.3 < 0.3 0.6 ± 0.3 < 0.3 0.6 ± 0.3 0.7 ± 0.3 < 0.3 0.6 ± 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 0.6 ± 0.3 < 0.3 < 0.3 < 0.3 0.8 ± 0.3 < 0.3 < 0.3 < 0.3 < 0.3 0.7 ± 0.3 0.6 ± 0.3 < 0.3 Analyzed 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 Air Chek, Inc. 1936 Butler Bridge Rd, Mills River, NC 28759-3892 Phone: (828) 684-0893 Fax: (828) 684-8498 February 10, ** LABORATORY ANALYSIS REPORT ** 2016 Radon test result report for: ROCKVILLE HIGH SCHOOL MAIN Kit # 7721974 7721987 7721978 7721981 7721988 7721991 7721985 7721992 7721995 7722000 7721997 7721996 7721999 7721994 7721986 7712534 7721982 7721998 7712551 7712550 7721989 7712545 7712549 7712547 7721990 7712544 7712541 7721993 7712540 7712537 7712535 7721938 7721903 7721907 7721911 7721905 7721939 Room Id 1011 A 1011 D 1011 E 1012 1013 1013 1013 D 1015 1015 C 1017 1019 1020 1021 1022 1023 1024 1024 1024 1025 1027 1030 1031 B 1031 B 1031 C 1032 1033 1035 1036 1037 1038 1039 1049 1050 PB 1053 A 1053 A 1053 B 1054 Started 2016-01-11 @ 12:00 pm 2016-01-11 @ 12:00 pm 2016-01-11 @ 12:00 pm 2016-01-11 @ 12:00 pm 2016-01-11 @ 12:00 pm 2016-01-11 @ 12:00 pm 2016-01-11 @ 12:00 pm 2016-01-11 @ 12:00 pm 2016-01-11 @ 12:00 pm 2016-01-11 @ 12:00 pm 2016-01-11 @ 1:00 pm 2016-01-11 @ 12:00 pm 2016-01-11 @ 1:00 pm 2016-01-11 @ 1:00 pm 2016-01-11 @ 1:00 pm 2016-01-11 @ 1:00 pm 2016-01-11 @ 1:00 pm 2016-01-11 @ 1:00 pm 2016-01-11 @ 2:00 pm 2016-01-11 @ 2:00 pm 2016-01-11 @ 1:00 pm 2016-01-11 @ 2:00 pm 2016-01-11 @ 2:00 pm 2016-01-11 @ 2:00 pm 2016-01-11 @ 1:00 pm 2016-01-11 @ 1:00 pm 2016-01-11 @ 1:00 pm 2016-01-11 @ 1:00 pm 2016-01-11 @ 1:00 pm 2016-01-11 @ 1:00 pm 2016-01-11 @ 1:00 pm 2016-01-11 @ 10:00 am 2016-01-11 @ 10:00 am 2016-01-11 @ 10:00 am 2016-01-11 @ 10:00 am 2016-01-11 @ 10:00 am 2016-01-11 @ 10:00 am Ended 2016-01-14 @ 10:00 am 2016-01-14 @ 10:00 am 2016-01-14 @ 10:00 am 2016-01-14 @ 10:00 am 2016-01-14 @ 10:00 am 2016-01-14 @ 10:00 am 2016-01-14 @ 10:00 am 2016-01-14 @ 10:00 am 2016-01-14 @ 10:00 am 2016-01-14 @ 10:00 am 2016-01-14 @ 10:00 am 2016-01-14 @ 10:00 am 2016-01-14 @ 10:00 am 2016-01-14 @ 10:00 am 2016-01-14 @ 10:00 am 2016-01-14 @ 11:00 am 2016-01-14 @ 11:00 am 2016-01-14 @ 11:00 am 2016-01-14 @ 10:00 am 2016-01-14 @ 10:00 am 2016-01-14 @ 11:00 am 2016-01-14 @ 11:00 am 2016-01-14 @ 10:00 am 2016-01-14 @ 10:00 am 2016-01-14 @ 11:00 am 2016-01-14 @ 11:00 am 2016-01-14 @ 11:00 am 2016-01-14 @ 11:00 am 2016-01-14 @ 11:00 am 2016-01-14 @ 11:00 am 2016-01-14 @ 11:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am pCi/L < 0.3 < 0.3 < 0.3 0.6 ± 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 1.3 ± 0.3 0.7 ± 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 0.6 ± 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 0.6 ± 0.3 < 0.3 0.7 ± 0.3 0.7 ± 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 1.1 ± 0.3 1.0 ± 0.3 < 0.3 < 0.3 Analyzed 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 Air Chek, Inc. 1936 Butler Bridge Rd, Mills River, NC 28759-3892 Phone: (828) 684-0893 Fax: (828) 684-8498 February 10, ** LABORATORY ANALYSIS REPORT ** 2016 Radon test result report for: ROCKVILLE HIGH SCHOOL MAIN Kit # 7721941 7721942 7721945 7721946 7721950 7721943 7721977 7721980 7721979 7721972 7721968 7721973 7721976 7721975 7721964 7721971 7721960 7721966 7721970 7721969 7721967 7721963 7721965 7721952 7721956 7721959 7721948 7721961 7721951 7721955 7721947 7721949 7721944 7721940 7721954 7721957 7721958 Room Id 1054 1055 B 1055B 1057 1059 1060 1062 1067 1069 1070 1070 A 1070 A 1070 A 1075 1076 1076 1076 A 1080 1080 B 1080 D 1080C 1081 1081 1083 1083 F 1084 1089 1093 1095 1095 B 1097 1097 1103 1105 1107 1107 1107 Started 2016-01-11 @ 10:00 am 2016-01-11 @ 10:00 am 2016-01-11 @ 10:00 am 2016-01-11 @ 10:00 am 2016-01-11 @ 10:00 am 2016-01-11 @ 10:00 am 2016-01-11 @ 12:00 pm 2016-01-11 @ 12:00 pm 2016-01-11 @ 12:00 pm 2016-01-11 @ 12:00 pm 2016-01-11 @ 12:00 pm 2016-01-11 @ 12:00 pm 2016-01-11 @ 12:00 pm 2016-01-11 @ 12:00 pm 2016-01-11 @ 12:00 pm 2016-01-11 @ 12:00 pm 2016-01-11 @ 12:00 pm @ 2016-01-11 @ 11:00 am 2016-01-11 @ 12:00 pm 2016-01-11 @ 11:00 am 2016-01-11 @ 11:00 am 2016-01-11 @ 11:00 am 2016-01-11 @ 11:00 am 2016-01-11 @ 11:00 am 2016-01-11 @ 11:00 am 2016-01-11 @ 11:00 am 2016-01-11 @ 11:00 am 2016-01-11 @ 11:00 am 2016-01-11 @ 11:00 am 2016-01-11 @ 10:00 am 2016-01-11 @ 10:00 am 2016-01-11 @ 11:00 am 2016-01-11 @ 11:00 am 2016-01-11 @ 11:00 am 2016-01-11 @ 11:00 am 2016-01-11 @ 11:00 am Ended 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 10:00 am 2016-01-14 @ 10:00 am 2016-01-14 @ 10:00 am 2016-01-14 @ 10:00 am 2016-01-14 @ 10:00 am 2016-01-14 @ 10:00 am 2016-01-14 @ 10:00 am 2016-01-14 @ 10:00 am 2016-01-14 @ 10:00 am 2016-01-14 @ 10:00 am 2016-01-14 @ 10:00 am @ 2016-01-14 @ 10:00 am 2016-01-14 @ 10:00 am 2016-01-14 @ 10:00 am 2016-01-14 @ 10:00 am 2016-01-14 @ 10:00 am 2016-01-14 @ 10:00 am 2016-01-14 @ 10:00 am 2016-01-14 @ 10:00 am 2016-01-14 @ 10:00 am 2016-01-14 @ 10:00 am 2016-01-14 @ 10:00 am 2016-01-14 @ 10:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am 2016-01-14 @ 9:00 am pCi/L 0.6 ± 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 0.9 ± 0.3 0.7 ± 0.3 1.0 ± 0.3 0.7 ± 0.3 0.8 ± 0.3 < 0.3 < 0.3 0.8 ± 0.3 1.1 ± 0.3 0.8 ± 0.3 0.7 ± 0.3 Analyzed 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 1.2 ± 0.3 1.1 ± 0.3 1.2 ± 0.3 1.1 ± 0.3 0.9 ± 0.3 2.2 ± 0.4 1.1 ± 0.3 2.6 ± 0.4 < 0.3 0.8 ± 0.3 < 0.3 0.7 ± 0.3 0.7 ± 0.3 0.6 ± 0.3 < 0.3 0.8 ± 0.3 1.0 ± 0.3 1.3 ± 0.3 < 0.3 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 Air Chek, Inc. 1936 Butler Bridge Rd, Mills River, NC 28759-3892 Phone: (828) 684-0893 Fax: (828) 684-8498 February 10, ** LABORATORY ANALYSIS REPORT ** 2016 Radon test result report for: ROCKVILLE HIGH SCHOOL MAIN Kit # 7721953 7712542 7712563 7712538 7712539 7712566 7712562 7712536 7722543 7712546 7712559 7712570 7712574 7712553 7722533 7712532 7712554 7712558 7712555 Room Id 1109 2015 2015 2027 2039 2042 2042 2051 2067 2076 2076 2101 2119 2034 3009 3014 3019 3019 3033 Started 2016-01-11 @ 11:00 am 2016-01-11 @ 2:00 pm 2016-01-11 @ 2:00 pm 2016-01-11 @ 2:00 pm 2016-01-11 @ 2:00 pm 2016-01-11 @ 2:00 pm 2016-01-11 @ 2:00 pm 2016-01-11 @ 2:00 pm 2016-01-11 @ 1:00 pm 2016-01-11 @ 2:00 pm 2016-01-11 @ 2:00 pm 2016-01-11 @ 2:00 pm 2016-01-11 @ 2:00 pm 2016-01-11 @ 2:00 pm 2016-01-11 @ 1:00 pm 2016-01-11 @ 2:00 pm 2016-01-11 @ 2:00 pm 2016-01-11 @ 2:00 pm 2016-01-11 @ 2:00 pm Ended 2016-01-14 @ 9:00 am 2016-01-14 @ 11:00 am 2016-01-14 @ 11:00 am 2016-01-14 @ 11:00 am 2016-01-14 @ 11:00 am 2016-01-14 @ 11:00 am 2016-01-14 @ 11:00 am 2016-01-14 @ 11:00 am 2016-01-14 @ 10:00 am 2016-01-14 @ 11:00 am 2016-01-14 @ 11:00 am 2016-01-14 @ 11:00 am 2016-01-14 @ 11:00 am 2016-01-14 @ 11:00 am 2016-01-14 @ 10:00 am 2016-01-14 @ 11:00 am 2016-01-14 @ 11:00 am 2016-01-14 @ 11:00 am 2016-01-14 @ 11:00 am pCi/L 1.0 ± 0.3 < 0.3 < 0.3 < 0.3 < 0.3 0.6 ± 0.3 0.5 ± 0.3 0.6 ± 0.3 ???? EI < 0.3 < 0.3 < 0.3 0.6 ± 0.3 < 0.3 ???? EI < 0.3 < 0.3 < 0.3 < 0.3 Analyzed 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-26 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-18 2016-01-27 2016-01-18 2016-01-18 2016-01-18 2016-01-18 Air Chek, Inc. 1936 Butler Bridge Rd, Mills River, NC 28759-3892 Phone: (828) 684-0893 Fax: (828) 684-8498 February ** LABORATORY ANALYSIS 2, REPORT ** 2016 Radon test result report for: MCPS PHASE 5 & 6 TRANSIT BLANKS Kit # 7722194 7718494 7718475 7718495 7718496 7718497 7718498 7718499 7718500 7718296 7718295 7722195 7716789 7716785 7716791 7716786 7716793 7718274 7716792 7718294 7718293 7718292 7722197 7718290 7722198 7722199 7722211 7718491 7718476 7718479 Room Id 1 10 11 12 13 14 15 16 17 18 19 2 20 21 22 23 24 25 26 27 28 29 3 30 4 5 6 7 8 9 Started 2016-01-19 @ 12:00 pm 2016-01-19 @ 12:00 pm 2016-01-19 @ 12:00 pm 2016-01-19 @ 12:00 pm 2016-01-19 @ 12:00 pm 2016-01-19 @ 12:00 pm 2016-01-19 @ 12:00 pm 2016-01-19 @ 12:00 pm 2016-01-19 @ 12:00 pm 2016-01-19 @ 12:00 pm 2016-01-19 @ 12:00 pm 2016-01-19 @ 12:00 pm 2016-01-19 @ 12:00 pm 2016-01-19 @ 12:00 pm 2016-01-19 @ 12:00 pm 2016-01-19 @ 12:00 pm 2016-01-19 @ 12:00 pm 2016-01-19 @ 12:00 pm 2016-01-19 @ 12:00 pm 2016-01-19 @ 12:00 pm 2016-01-19 @ 12:00 pm 2016-01-19 @ 12:00 pm 2016-01-19 @ 12:00 pm 2016-01-19 @ 12:00 pm 2016-01-19 @ 12:00 pm 2016-01-19 @ 12:00 pm 2016-01-19 @ 12:00 pm 2016-01-19 @ 12:00 pm 2016-01-19 @ 12:00 pm 2016-01-19 @ 12:00 pm Ended 2016-01-22 @ 12:00 pm 2016-01-22 @ 12:00 pm 2016-01-22 @ 12:00 pm 2016-01-22 @ 12:00 pm 2016-01-22 @ 12:00 pm 2016-01-22 @ 12:00 pm 2016-01-22 @ 12:00 pm 2016-01-22 @ 12:00 pm 2016-01-22 @ 12:00 pm 2016-01-22 @ 12:00 pm 2016-01-22 @ 12:00 pm 2016-01-22 @ 12:00 pm 2016-01-22 @ 12:00 pm 2016-01-22 @ 12:00 pm 2016-01-22 @ 12:00 pm 2016-01-22 @ 12:00 pm 2016-01-22 @ 12:00 pm 2016-01-22 @ 12:00 pm 2016-01-22 @ 12:00 pm 2016-01-22 @ 12:00 pm 2016-01-22 @ 12:00 pm 2016-01-22 @ 12:00 pm 2016-01-22 @ 12:00 pm 2016-01-22 @ 12:00 pm 2016-01-22 @ 12:00 pm 2016-01-22 @ 12:00 pm 2016-01-22 @ 12:00 pm 2016-01-22 @ 12:00 pm 2016-01-22 @ 12:00 pm 2016-01-22 @ 12:00 pm pCi/L < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.3 Analyzed 2016-01-27 2016-01-27 2016-01-27 2016-01-27 2016-01-27 2016-01-27 2016-01-27 2016-01-27 2016-01-27 2016-01-27 2016-01-27 2016-01-27 2016-01-27 2016-01-26 2016-01-27 2016-01-27 2016-01-27 2016-01-27 2016-01-27 2016-01-27 2016-01-27 2016-01-27 2016-01-27 2016-01-27 2016-01-27 2016-01-27 2016-01-27 2016-01-27 2016-01-26 2016-01-27 Air Chek, Inc. 1936 Butler Bridge Rd, Mills River, NC 28759-3892 Phone: (828) 684-0893 Fax: (828) 684-8498 December 23, ** LABORATORY ANALYSIS REPORT ** 2015 Spike Sample Laboratory Results Radon test result report for: MCPS Kit # 7706380 7706381 7706208 7705132 7706366 7706211 Room Id 101 102 103 104 105 106 Started 2015-12-18 @ 9:00 am 2015-12-18 @ 9:00 am 2015-12-18 @ 9:00 am 2015-12-18 @ 9:00 am 2015-12-18 @ 9:00 am 2015-12-18 @ 9:00 am Ended 2015-12-21 @ 9:00 am 2015-12-21 @ 9:00 am 2015-12-21 @ 9:00 am 2015-12-21 @ 9:00 am 2015-12-21 @ 9:00 am 2015-12-21 @ 9:00 am pCi/L 25.2 26.5 27.7 28.6 26.5 26.1 Analyzed 2015-12-23 2015-12-23 2015-12-23 2015-12-23 2015-12-23 2015-12-23 Air Chek, Inc. 1936 Butler Bridge Rd, Mills River, NC 28759-3892 Phone: (828) 684-0893 Fax: (828) 684-8498 Note: Spike samples are test canisters that are deliberately exposed to a controlled high level of radon in a laboratory. They provide a quality control measure in the testing process and do NOT reflect radon levels in the building being tested.
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