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Ar:RObiolocly I-AhORATORy 150615pringdale St ASSOCRIVS, INCORPO2aU) Certificate of Analysis Suite 111 A Pace^Laboratory AIHA-LAP EMLAP#2189S1 Huntington Beach,CA 92649 7148958401 Hawk Environmental Services,Inc. Date Collected: 3/7/2022 7955 46th Ave.S Date Received: 3/10/2022 Seattle WA,98118 Date Analyzed: 3/10/2022 Attn:Ben Tressel Date Reported: 3/10/2022 Project:Landlord Law Air Project ID: 22008611 Condition of Sample(s)Upon Receipt:Acceptable Page 2 of 2 Footnotes and Additional Report Information Debris Rating Table 1 Minimal(<5%)particulate present Reported values are minimally affected by particulate load. 2 5%to 25%of the trace occluded with particulate Negative bias is expected.The degree of bias increases directly with the percent of the trace that is occluded. 3 26%to 75%of the trace occluded with particulate Negative bias is expected.The degree of bias increases directly with the percent of the trace that is occluded. Negative bias is expected.The degree of bias increases directly with the percent 4 75%to 90%of the trace occluded with particulate of the trace that is occluded. Quantification not possible due to large negative bias.A new sample should be 5 Greater than 90%of the trace occluded with particulate collected at a shorter time interval or other measures taken to reduce particulate load. Aeroblology Laboratory Associates,Inc.shall be responsible for all the information provided in the report,except when information Is provided by fire customer.Data provided by a customer can affect the validity of results and shall be clearly Identified.Results apply to the samples as received.Aerobiology Laboratory Associates,Inc.is not responsible for the sampling activity, such as air and water volume,area,and mass unit.The report shall not be reproduced except In full without the approval of the laboratory to ensure that parts of a report are not taken out of context.Data Interpretation of this report will be the client responsibility based on their sampling. " 1.PeniciillumlAspergillus group spores are characterized by their small size,round to ovoid shape,being unicellular,and usually colorless to lightly pigmented. There are numerous genera of fungi whose spore morphology is similar to that of the Penicillium/Aspergillus type.Two common examples would be l aecilomyces and Acremonium.Although the majority of spores placed in this group are Penicillium,Aspergillus,or a combination of both.Keep in mind that these are not the only two possibilities. 2.Ascospores are sexually produced fungal spores formed within an ascus.An ascus is a sac-like structure designed to discharge the ascospores into the environment,e.g.Ascobolus. 3.Basidiospores are typically blown indoors from outdoors and rarely have an Indoor source.However,in certain situations a high basidiospore count indoors may be indicative of a wood decay problem or wet soil. 4.The colorless group contains colorless spores which were unidentifiable to a specific genus.Examples of this group include Acremonium, It la I Beauveria,Chrysosporium,Engyodonlium microconidia,yeast,some arthrospores,as well as many others. i 5.Hyphae are the vegetative mode of fungi.Hyphal elements are fragments of individual Hyphae.They can break apart and become airborne much like spores and are potentially allergenic.Amass of hyphal elements is termed the mycelium.Hyphae In high concentration may be indicative of colonization. f 6.Dash(-)in this report,under raw count column means'not detected(ND)';otherwise'not applicable'(NA). 7.The positive-hole correction factor is a statistical tool which calculates a probable count from the raw count,taking into consideration that multiple particles can impact on the same hole;for this reason the sum of the calculated counts may be less than the positive hole corrected total. 8.Due to rounding totals may not equal 100%. 9.Analytical Sensitivity for each spores is different for Non-viable sample when the spores are read at different percentage.Analytical Sensitivity is calculated as spdm 3 divided by raw count.spr/m 3=raw counts x(1001%read)x(1000/Sample volume).If Analytical Sensitivity is 13 sprint 3 at 1t10%read,Analytical Sensitivity at 50%read would be 27 sprint 3,which is 2 times higher.Analytical Sensitivity provided on the report Is based on an assumed 100%of the trace being analyzed. 10.Minimum Reporting Limits(MRL)for BULKS,DUSTS,SWABS,and WATER samples are a calculation based on the sample size and the dilution plate on which the organism was counted.Results are a compilation of counts taken from multiple dilutions and multiple medias,This means that every genus of fungi or bacteria recovered can be counted on the plate on which it is best represented. 11.If the final quantitative result Is corrected for contamination based on the blank,the blank correction is stated in the sample comments section of the report, 12.The results in this report are related to this project and these samples only. 13,For samples with an air volume of<100L,the number of significant figures in the result should be considered(2)two.For samples with air volumes between 100 999L,the number of significant figures In the result should considered(3)three.For example,a sample with a result of 55,443 sprlm3 from a 75L sample using significant figures should be considered 55,000.The same result of 55,443 from a 150L sample using significant figures should be considered 55,400 spdm 3 14.If the In/Out ratio is greater than 100 times it is indicated>10011,rather than showing the real value. Terminology Used in Direct Exam Reporting Conidiophores are a type of modified hyphae from which spores are born.When seen on a surface sample to moderate to numerous concentrations they may be indicative of fungal growth. Suzanne Blevins Laboratory Director tb 2022 Aerobiology Laboratory Associates,Inc.All rights reserved.