February 3, Scott Cline City College of San Francisco 50 Phelan Avenue San Francisco, CA

Transcription

1 February 3, 2015 Scott Cline City College of San Francisco 50 Phelan Avenue San Francisco, CA RE: Fungal Investigation City College of San Francisco Administration Building 31 Gough Street San Francisco, California Dear Mr. Cline: RGA Environmental, Inc. (RGA) was requested to perform a limited assessment of current fungal conditions in the City College of San Francisco Administration Building located at 31 Gough Street in San Francisco, California. John Alexander, industrial hygienist with RGA, conducted the fungal investigation on January 21, The scope of the investigation included visual assessment and air testing for fungal spores. The airborne fungal assessment was limited to selected areas on the ground floor of the building. The air testing was performed to provide an assessment of the areas sampled including the cafeteria, Room 31, 55, and corridor near the ground floor entry. The air sample results are representative of the areas sampled on the date of testing and is not necessarily representative of airborne fungal conditions throughout the entire building. Evidence of water damage was noted in all of the rooms and areas assessed. Water stained ceiling tile were observed at the ground floor entry corridor, cafeteria, and Room 31. Water staining and mineral deposits were observed on the painted concrete ceiling deck in Room 55. There appears to be multiple sources of water including mechanical plumbing and building envelope leaks. Visible suspect mold growth (<1 square foot) was observed on an acoustical ceiling tile in Room 31. RGA collected a total of six (6) air samples - four (4) on the interior of the ground floor and two (2) on the exterior of the building for comparative analysis. Air samples were collected via Air- O-Cell 1 sampling cassettes to evaluated current fungal conditions. Samples were transferred under a chain of custody to EMLab P&K in San Bruno, California. 1 Air-O- Cell Airborne fungal count samples were obtained using Air-O-Cell sampling cassettes. The Air-O-Cell cassette is designed for the rapid collection and analysis of a wide range of airborne aerosols. These include mold spores, pollen, insect parts, skin fragments, fibers and inorganic particulate. The design of the airflow pathway through the cassette creates a deposition of airborne particulate upon a glass slide contained in the cassette housing. After sample collection, the glass slide is removed and direct microscope analysis is performed. N:\Projects\2015\R \Working Files\DRAFTS (Proposal-Reports-Communications)\Air Sampling Report\CCSF - Gough Street - Ground Floor.doc

2 EML P&K analyzed the air samples by direct exam and reported counts of potential viable and non-viable fungal spores. The fungal sampling results indicated lower total fungal counts in the building interior as compared to the exterior. Individual fungal spore types detected in the building interior were also similar to the exterior. Concentrations of each fungal type were less than the exterior. See the attached laboratory report, statistical comparison and sample location figure for additional information. RGA s opinion regarding the interpretation of biological air samples is formed primarily by two guiding principles. First, an effective interpretation is based on the comparison of indoor and outdoor samples. There are currently no guidelines or regulations to indicate "safe" or "normal" spore levels, however, industry standard typically expects indoor counts to be 30 to 80 percent of outdoor spore counts, with the same general distribution of spore types present. And second, variation is an inherent part of biological air sampling. The presence or absence of a few genera in small numbers should not be considered abnormal. Differences in fungal counts in orders of magnitude are considered significant and warrant addition investigation to determine potential sources. It is the opinion of RGA that the fungal testing results for the areas tested on the ground floor of the Administration Building does not indicate an interior fungal condition is likely impacting fungal spore concentrations. The ambient air is likely the largest factor of influence of fungal spore concentrations detected on the interior of the building. The findings of this assessment and the opinions expressed are based upon visual observations of the property and scope of services described herein. Some of the observations and information have been provided by the client s representative and serve as a basis for this report. Observation and testing results are only valid for the area tested. RGA appreciates this opportunity to provide industrial hygiene consulting services to City College of San Francisco. Respectfully, RGA Environmental, Inc. Kenneth Pilgrim Project Manager Mike Bishop Industrial Hygienist Attachments: Figure 1 sample locations, laboratory sample results, chain-of-custody form, statistical comparison of laboratory data, photo log summary N:\Projects\2015\R \Working Files\DRAFTS (Proposal-Reports-Communications)\Air Sampling Report\CCSF - Gough Street - Ground Floor.doc

3 Sample # Sample # Sample # (Exterior) Sample # (Exterior) Sample # Sample # Fungal Air Testing Locations Ground Floor Date: 2/2/2013 Admin. Building Gough Street San Francisco, California PROJECT NO.: R Not to Scale N Figure 1

4 Report for: Mr. Kenneth Pilgrim RGA Environmental, Inc th Street Emeryville, CA Regarding: Project: R ; CCSF/31 Gough Street/ San Francisco EML ID: Approved by: Dates of Analysis: Spore trap analysis: Technical Manager Dr. Kamashwaran Ramanathan Service SOPs: Spore trap analysis (EM-MY-S-1038) AIHA-LAP, LLC accredited service, Lab ID # All samples were received in acceptable condition unless noted in the Report Comments portion in the body of the report. Due to the nature of the analyses performed, field blank correction of results is not applied. The results relate only to the items tested. EMLab P&K ("the Company") shall have no liability to the client or the client's customer with respect to decisions or recommendations made, actions taken or courses of conduct implemented by either the client or the client's customer as a result of or based upon the Test Results. In no event shall the Company be liable to the client with respect to the Test Results except for the Company's own willful misconduct or gross negligence nor shall the Company be liable for incidental or consequential damages or lost profits or revenues to the fullest extent such liability may be disclaimed by law, even if the Company has been advised of the possibility of such damages, lost profits or lost revenues. In no event shall the Company's liability with respect to the Test Results exceed the amount paid to the Company by the client therefor. EMLab P&K, LLC EMLab ID: , Page 1 of 4

5 Client: RGA Environmental, Inc. C/O: Mr. Kenneth Pilgrim Re: R ; CCSF/31 Gough Street/ San Francisco SPORE TRAP REPORT: NON-VIABLE METHODOLOGY Location: : Outside at Gough Street entrance EMLab P&K 1150 Bayhill Drive, Suite 100, San Bruno, CA (866) Fax (650) Date of Sampling: Date of Receipt: Date of Report: : Room 55 Comments (see below) None None Lab ID-Version : Analysis Date: 01/26/ /26/2015 raw ct. % read spores/m3 raw ct. % read spores/m3 Ascospores Basidiospores ,400 Botrytis Chaetomium Cladosporium , Fusarium Myrothecium Nigrospora Other brown Other colorless Penicillium/Aspergillus types Pithomyces Rusts Smuts, Periconia, Myxomycetes Stachybotrys Stemphylium Torula Ulocladium Zygomycetes Background debris (1-4+) Hyphal fragments/m3 27 < 13 Pollen/m3 27 < 13 Skin cells (1-4+) < Sample volume (liters) TOTAL SPORES/m3 3, Comments: Spore types listed without a count or data entry were not detected during the course of the analysis for the respective sample. The spores of Aspergillus and Penicillium (and others such as Acremonium, Paecilomyces) are small and round with very few distinguishing characteristics. They cannot be differentiated by non-viable sampling methods. Also, some species with very small spores are easily missed, and may be undercounted. Background debris indicates the amount of non-biological particulate matter present on the trace (dust in the air) and the resulting visibility for the analyst. It is rated from 1+ (low) to 4+ (high). Counts from areas with 4+ background debris should be regarded as minimal counts and may be higher then reported. It is important to account for samples volumes when evaluating dust levels. The analytical sensitivity is the spores/m3 divided by the raw count. The limit of detection is the analytical sensitivity multiplied by the sample volume divided by For more information regarding analytical sensitivity, please contact QA by calling the laboratory. A "Version" indicated by -"x" after the Lab ID# with a value greater than 1 indicates a sample with amended data. The revision number is reflected by the value of "x". Total Spores/m3 has been rounded to two significant figures to reflect analytical precision. EMLab P&K, LLC EMLab ID: , Page 2 of 4

6 Client: RGA Environmental, Inc. C/O: Mr. Kenneth Pilgrim Re: R ; CCSF/31 Gough Street/ San Francisco SPORE TRAP REPORT: NON-VIABLE METHODOLOGY Location: : Corridor at entrance to 9C EMLab P&K 1150 Bayhill Drive, Suite 100, San Bruno, CA (866) Fax (650) Date of Sampling: Date of Receipt: Date of Report: : Room 31 Comments (see below) None None Lab ID-Version : Analysis Date: 01/26/ /26/2015 raw ct. % read spores/m3 raw ct. % read spores/m3 Ascospores Basidiospores Botrytis Chaetomium Cladosporium Fusarium Myrothecium Nigrospora Other brown Other colorless Penicillium/Aspergillus types Pithomyces Rusts Smuts, Periconia, Myxomycetes Stachybotrys Stemphylium Torula Ulocladium Zygomycetes Background debris (1-4+) Hyphal fragments/m3 < 13 < 13 Pollen/m3 < 13 < 13 Skin cells (1-4+) Sample volume (liters) TOTAL SPORES/m Comments: Spore types listed without a count or data entry were not detected during the course of the analysis for the respective sample. The spores of Aspergillus and Penicillium (and others such as Acremonium, Paecilomyces) are small and round with very few distinguishing characteristics. They cannot be differentiated by non-viable sampling methods. Also, some species with very small spores are easily missed, and may be undercounted. Background debris indicates the amount of non-biological particulate matter present on the trace (dust in the air) and the resulting visibility for the analyst. It is rated from 1+ (low) to 4+ (high). Counts from areas with 4+ background debris should be regarded as minimal counts and may be higher then reported. It is important to account for samples volumes when evaluating dust levels. The analytical sensitivity is the spores/m3 divided by the raw count. The limit of detection is the analytical sensitivity multiplied by the sample volume divided by For more information regarding analytical sensitivity, please contact QA by calling the laboratory. A "Version" indicated by -"x" after the Lab ID# with a value greater than 1 indicates a sample with amended data. The revision number is reflected by the value of "x". Total Spores/m3 has been rounded to two significant figures to reflect analytical precision. EMLab P&K, LLC EMLab ID: , Page 3 of 4

7 Client: RGA Environmental, Inc. C/O: Mr. Kenneth Pilgrim Re: R ; CCSF/31 Gough Street/ San Francisco SPORE TRAP REPORT: NON-VIABLE METHODOLOGY Location: : Cafeteria EMLab P&K 1150 Bayhill Drive, Suite 100, San Bruno, CA (866) Fax (650) Date of Sampling: Date of Receipt: Date of Report: : Outside at Gough Street entrance Comments (see below) None None Lab ID-Version : Analysis Date: 01/26/ /26/2015 raw ct. % read spores/m3 raw ct. % read spores/m3 Ascospores Basidiospores ,000 Botrytis Chaetomium Cladosporium ,100 Fusarium Myrothecium Nigrospora Other brown Other colorless Penicillium/Aspergillus types Pithomyces Rusts Smuts, Periconia, Myxomycetes Stachybotrys Stemphylium Torula Ulocladium Zygomycetes Background debris (1-4+) Hyphal fragments/m3 < Pollen/m3 < Skin cells (1-4+) 1+ < 1+ Sample volume (liters) TOTAL SPORES/m ,300 Comments: Spore types listed without a count or data entry were not detected during the course of the analysis for the respective sample. The spores of Aspergillus and Penicillium (and others such as Acremonium, Paecilomyces) are small and round with very few distinguishing characteristics. They cannot be differentiated by non-viable sampling methods. Also, some species with very small spores are easily missed, and may be undercounted. Background debris indicates the amount of non-biological particulate matter present on the trace (dust in the air) and the resulting visibility for the analyst. It is rated from 1+ (low) to 4+ (high). Counts from areas with 4+ background debris should be regarded as minimal counts and may be higher then reported. It is important to account for samples volumes when evaluating dust levels. The analytical sensitivity is the spores/m3 divided by the raw count. The limit of detection is the analytical sensitivity multiplied by the sample volume divided by For more information regarding analytical sensitivity, please contact QA by calling the laboratory. A "Version" indicated by -"x" after the Lab ID# with a value greater than 1 indicates a sample with amended data. The revision number is reflected by the value of "x". Total Spores/m3 has been rounded to two significant figures to reflect analytical precision. EMLab P&K, LLC EMLab ID: , Page 4 of 4

8 Client: RGA Environmental, Inc. C/O: Mr. Kenneth Pilgrim Re: R ; CCSF/31 Gough Street/ San Francisco MoldRANGE : Extended Outdoor Comparison Outdoor Location: , Outside at Gough Street entrance EMLab P&K 1150 Bayhill Drive, Suite 100, San Bruno, CA (866) Fax (650) Date of Sampling: Date of Receipt: Date of Report: Fungi Identified Outdoor Typical Outdoor Data for: Typical Outdoor Data for: data January in California (n =15938) The entire year in California (n =213214) spores/m3 very low low med high very high freq % very low low med high very high freq % Generally able to grow indoors* Alternaria Bipolaris/Drechslera group Chaetomium Cladosporium 1, ,200 2, ,700 2, Curvularia Nigrospora Other brown Penicillium/Aspergillus types , , Pithomyces Stachybotrys Torula Seldom found growing indoors** Ascospores , Basidiospores 1, ,100 4, ,000 2, Botrytis Rusts Smuts, Periconia, Myxomycetes TOTAL SPORES/m3 3,600 The 'Typical Outdoor Data' represents the typical outdoor spore levels for the location and time frame indicated. The last column represents the frequency of occurrence. The very low, low, med, high, and very high values represent the 10, 20, 50, 80, and 90 percentile values of the spore type when it is detected. For example, if the frequency of occurrence is 63% and the low value is 53, it would mean that the given spore type is detected 63% of the time and, when detected, 20% of the time it is present in levels above the detection limit and below 53 spores/m3. These values are updated periodically, and if enough data is not available to make a statistically meaningful assessment, it is indicated with a dash. Total Spores/m3 has been rounded to two significant figures to reflect analytical precision. * The spores in this category are generally capable of growing on wet building materials in addition to growing outdoors. Building related growth is dependent upon the fungal type, moisture level, type of material, and other factors. Cladosporium is one of the predominant spore types worldwide and is frequently present in high numbers. Penicillium/Aspergillus species colonize both outdoor and indoor wet surfaces rapidly and are very easily dispersed. Other genera are usually present in lesser numbers. ** These fungi are generally not found growing on wet building materials. For example, the rusts and smuts are obligate plant pathogens. However, in each group there are notable exceptions. For example, agents of wood decay are members of the basidiomycetes and high counts of a single morphological type of basidiospore on an inside sample should be considered significant. n = number of samples used to calculate data. Interpretation of the data contained in this report is left to the client or the persons who conducted the field work. This report is provided for informational and comparative purposes only and should not be relied upon for any other purpose. "Typical outdoor data" are based on the results of the analysis of samples delivered to and analyzed by EMLab P&K and assumptions regarding the origins of those samples. Sampling techniques, contaminants infecting samples, unrepresentative samples and other similar or dissimilar factors may affect these results. In addition, EMLab P&K may not have received and tested a representative number of samples for every region or time period. EMLab P&K hereby disclaims any liability for any and all direct, indirect, punitive, incidental, special or consequential damages arising out of the use or interpretation of the data contained in, or any actions taken or omitted in reliance upon, this report. EMLab P&K, LLC EMLab ID: , Page 1 of 2

9 Client: RGA Environmental, Inc. C/O: Mr. Kenneth Pilgrim Re: R ; CCSF/31 Gough Street/ San Francisco MoldRANGE : Extended Outdoor Comparison Outdoor Location: , Outside at Gough Street entrance EMLab P&K 1150 Bayhill Drive, Suite 100, San Bruno, CA (866) Fax (650) Date of Sampling: Date of Receipt: Date of Report: Fungi Identified Outdoor Typical Outdoor Data for: Typical Outdoor Data for: data January in California (n =15938) The entire year in California (n =213214) spores/m3 very low low med high very high freq % very low low med high very high freq % Generally able to grow indoors* Alternaria Bipolaris/Drechslera group Chaetomium Cladosporium 1, ,200 2, ,700 2, Curvularia Nigrospora Other brown Penicillium/Aspergillus types , , Pithomyces Stachybotrys Torula Seldom found growing indoors** Ascospores , Basidiospores 2, ,100 4, ,000 2, Botrytis Rusts Smuts, Periconia, Myxomycetes TOTAL SPORES/m3 4,300 The 'Typical Outdoor Data' represents the typical outdoor spore levels for the location and time frame indicated. The last column represents the frequency of occurrence. The very low, low, med, high, and very high values represent the 10, 20, 50, 80, and 90 percentile values of the spore type when it is detected. For example, if the frequency of occurrence is 63% and the low value is 53, it would mean that the given spore type is detected 63% of the time and, when detected, 20% of the time it is present in levels above the detection limit and below 53 spores/m3. These values are updated periodically, and if enough data is not available to make a statistically meaningful assessment, it is indicated with a dash. Total Spores/m3 has been rounded to two significant figures to reflect analytical precision. * The spores in this category are generally capable of growing on wet building materials in addition to growing outdoors. Building related growth is dependent upon the fungal type, moisture level, type of material, and other factors. Cladosporium is one of the predominant spore types worldwide and is frequently present in high numbers. Penicillium/Aspergillus species colonize both outdoor and indoor wet surfaces rapidly and are very easily dispersed. Other genera are usually present in lesser numbers. ** These fungi are generally not found growing on wet building materials. For example, the rusts and smuts are obligate plant pathogens. However, in each group there are notable exceptions. For example, agents of wood decay are members of the basidiomycetes and high counts of a single morphological type of basidiospore on an inside sample should be considered significant. n = number of samples used to calculate data. Interpretation of the data contained in this report is left to the client or the persons who conducted the field work. This report is provided for informational and comparative purposes only and should not be relied upon for any other purpose. "Typical outdoor data" are based on the results of the analysis of samples delivered to and analyzed by EMLab P&K and assumptions regarding the origins of those samples. Sampling techniques, contaminants infecting samples, unrepresentative samples and other similar or dissimilar factors may affect these results. In addition, EMLab P&K may not have received and tested a representative number of samples for every region or time period. EMLab P&K hereby disclaims any liability for any and all direct, indirect, punitive, incidental, special or consequential damages arising out of the use or interpretation of the data contained in, or any actions taken or omitted in reliance upon, this report. EMLab P&K, LLC EMLab ID: , Page 2 of 2

10 : R EMLab P&K 1150 Bayhill Drive, Suite 100, San Bruno, CA (866) Fax (650) Ascospores Basidiospores Botrytis Cladosporium Other brown Penicillium/Aspergillus types Pithomyces Smuts, Periconia, Myxomycetes Comments: Note: Graphical output may understate the importance of certain "marker" genera. EMLab P&K, LLC EMLab ID: , Page 1

11 : R EMLab P&K 1150 Bayhill Drive, Suite 100, San Bruno, CA (866) Fax (650) Ascospores Basidiospores Cladosporium Other brown Penicillium/Aspergillus types Smuts, Periconia, Myxomycetes Comments: Note: Graphical output may understate the importance of certain "marker" genera. EMLab P&K, LLC EMLab ID: , Page 2

12

13 Ý»² æ ÎÙß Û²ª ±²³»² ô ²½ò ÝñÑæ Ó ò Õ»²²» Ð ¹ ³ λæ Îïïë éðêêå ÝÝÍÚñíï Ù±«¹ Í»» ñ Í ² Ú ²½ ½± ÛÓÔ ¾ ÐúÕ ïïëð Þ Ü ª»ô Í ïððô Í ² Þ «²±ô Ýß çìðêê øèêê èèèóêêëí Ú øêëð èîçóëèëî ò»³ ¾ò½±³ Ü» ±º Í ³ ²¹æ ðïóîïóîðïë Ü» ±º λ½» æ ðïóîíóîðïë Ü» ±º λ ± æ ðîóðíóîðïë Ó± ¼ÍÌßÌæ ͳ»² Í ½ Í ±» Ì Î» ± Ñ«¼±± Í«³³ æ îïîðìëïéæ Ñ«¼» Ù±«¹ Í»»»² ²½» Í»½» ¼»»½»¼ Ñ«¼±± ³» ±» ñ³í Ì ½ ±«¼±± ²¹» Ú» ò äïðð ïõ ïðõ âïððõ øò± ß³» ½ û ß ½± ±» íîð ïí ó îïð ó êôððð éê Þ ¼ ± ±» ïôìðð ïè ó ìëð ó îìôððð çî Þ± îé é ó îé ó îéð ë Ý ¼± ± «³ ïôëðð îé ó ìëð ó ïðôððð çð Ñ» ¾ ± ² ïí é ó ïí ó ïíð îí л² ½ «³ñß» ¹ íîð ïí ó ïéð ó îôéðð êè Ð ±³ ½» ïí é ó îð ó ëéð ïë ͳ«ô л ½±² ô Ó ±³ ½»» ïí é ó ëí ó çîð êí íôêðð Ì» þì ½ ±«¼±± ²¹» þ ²¼ þú» ò ûþ ½± «³² ±» ½ ± ô ³»¼ «³ô ²¼ ¹ ±» ½±«²» ½«¾ ½ ³»» ²¼» º» ²½ ±º ±½½²½» º±» ¹ ª»² ±»»ò Ì» ± ô ³»¼ «³ô ²¼ ¹ ª »»»²» îòëô ëðô ²¼ çéòë» ½»²» ª »²» ±»» ¼»»½»¼ò Ú±» ³»ô º» ± ª ëí ²¼» º» ²½ ±º ±½½²½» êíûô ±«¼ ³» ²» ½ ¼»»½» ¹ ª»² ±»» ±² êí» ½»² ±º ±«¼±± ³» ²¼ô»² ¼»»½»¼ô îòëû ±º» ³»»»² ²»ª» ¾» ± ëí ±» ñ³íò ²¼±± Í ³» Ô±½ ±²æ îïîðìíïêæ α±³ ëë û ±º ±«¼±± ± Ú»¼³ ² ½ ó ±» ñ³í ö ø ²¼±± ª ±² λ «æ ìû ¼Úæ í λ «æ íòïèðð Ý ½ ª æ éòèïìé ² ¼» Í ³ æ Ç» Í»½» Ü»»½»¼ Ý ¼± ± «³ л² ½ «³ñß» ¹ ß¹»»³»² ±öö λ «æ ðòìððð Í» ³ ² ²µ ½±» ±²ööö ¼Úæ è λ «æ ðòêíêç Ý ½ ª æ ðòêïçð Ñ«¼» Í ³ æ Ç» Ó± ¼ÍÝÑÎÛöööö ͽ±»æ ïïë λ «æ Ô± Í ±» ñ³í äïðð ïõ ïðõ âïððõ ëí ïêð ÛÓÔ ¾ ÐúÕô ÔÔÝ ÛÓÔ ¾ Üæ ïíïêéìîô Ð ¹» ï ±º í

14 Ý»² æ ÎÙß Û²ª ±²³»² ô ²½ò ÝñÑæ Ó ò Õ»²²» Ð ¹ ³ λæ Îïïë éðêêå ÝÝÍÚñíï Ù±«¹ Í»» ñ Í ² Ú ²½ ½± Ó± ¼ÍÌßÌæ ͳ»² Í ½ Í ±» Ì Î» ± Ô±½ ±²æ îïîðìîçéæ ݱ ¼±»² ²½» ± çý û ±º ±«¼±± ± ±» ñ³í Ú»¼³ ² ½ ó ö ø ²¼±± ª ±² ß¹»»³»² ±öö λ «æ êû ¼Úæ í λ «æ íòïèðð λ «æ ðòëìëë Ý ½ ª æ éòèïìé ² ¼» Í ³ æ Ç» Í»½» Ü»»½»¼ Ý ¼± ± «³ Ñ» ¾ ± ² л² ½ «³ñß» ¹ Ô±½ ±²æ îïîðììçìæ α±³ íï û ±º ±«¼±± ± Ú»¼³ ² ½ ó ±» ñ³í ö ø ²¼±± ª ±² λ «æ îêû ¼Úæ í λ «æ íòïèðð Ý ½ ª æ éòèïìé ² ¼» Í ³ æ Ç» Í»½» Ü»»½»¼ ß ½± ±» Þ ¼ ± ±» л² ½ «³ñß» ¹ ÛÓÔ ¾ ÐúÕ ïïëð Þ Ü ª»ô Í ïððô Í ² Þ «²±ô Ýß çìðêê øèêê èèèóêêëí Ú øêëð èîçóëèëî ò»³ ¾ò½±³ Ü» ±º Í ³ ²¹æ ðïóîïóîðïë Ü» ±º λ½» æ ðïóîíóîðïë Ü» ±º λ ± æ ðîóðíóîðïë Í» ³ ² ²µ ½±» ±²ööö ¼Úæ è λ «æ ðòìëèí Ý ½ ª æ ðòêïçð Ñ«¼» Í ³ æ Ò± Ó± ¼ÍÝÑÎÛöööö ͽ±»æ ïïì λ «æ Ô± Í ±» ñ³í äïðð ïõ ïðõ âïððõ ß¹»»³»² ±öö λ «æ ðòëìëë Í» ³ ² ²µ ½±» ±²ööö ¼Úæ è λ «æ ðòêïíï Ý ½ ª æ ðòêïçð Ñ«¼» Í ³ æ Ò± ïí îíð Ó± ¼ÍÝÑÎÛöööö ͽ±»æ ïîí λ «æ Ô± Í ±» ñ³í äïðð ïõ ïðõ âïððõ ïêð ëçð îïð çêð ÛÓÔ ¾ ÐúÕô ÔÔÝ ÛÓÔ ¾ Üæ ïíïêéìîô Ð ¹» î ±º í

15 Ý»² æ ÎÙß Û²ª ±²³»² ô ²½ò ÝñÑæ Ó ò Õ»²²» Ð ¹ ³ λæ Îïïë éðêêå ÝÝÍÚñíï Ù±«¹ Í»» ñ Í ² Ú ²½ ½± Ó± ¼ÍÌßÌæ ͳ»² Í ½ Í ±» Ì Î» ± Ô±½ ±²æ îïîðììêêæ Ý º»» û ±º ±«¼±± ± ±» ñ³í Ú»¼³ ² ½ ó ö ø ²¼±± ª ±² ß¹»»³»² ±öö λ «æ ïçû ¼Úæ í λ «æ íòïèðð λ «æ ðòêêêé Ý ½ ª æ éòèïìé ² ¼» Í ³ æ Ç» Í»½» Ü»»½»¼ ß ½± ±» Þ ¼ ± ±» Ý ¼± ± «³ л² ½ «³ñß» ¹ ÛÓÔ ¾ ÐúÕ ïïëð Þ Ü ª»ô Í ïððô Í ² Þ «²±ô Ýß çìðêê øèêê èèèóêêëí Ú øêëð èîçóëèëî ò»³ ¾ò½±³ Ü» ±º Í ³ ²¹æ ðïóîïóîðïë Ü» ±º λ½» æ ðïóîíóîðïë Ü» ±º λ ± æ ðîóðíóîðïë Í» ³ ² ²µ ½±» ±²ööö ¼Úæ è λ «æ ðòèëïî Ý ½ ª æ ðòêïçð Ñ«¼» Í ³ æ Ç» Ó± ¼ÍÝÑÎÛöööö ͽ±»æ ïïê λ «æ Ô± Í ±» ñ³í äïðð ïõ ïðõ âïððõ íîð ïêð êçð ö Ì» Ú»¼³ ² ½ ó ½ ²±²ó ³» ½»» ³ ²» ª ±² ²» ±º ¼ ø ² ½»ô ²¼±± ±» ½±«² ò Ì» ²«±» øøð ¾» ²¹»»¼»» ²± ³» ² ²¹º«¼ ºº»»²½» ²» ¼ º± ²¼±± ±½ ±² ò Ì»» ² ª» ±» ø¼ º»» ¼ ±ª»» ²«±»»» ¼ ºº»»²½» ¾»»»²» ²¼±± ±½ ±² ò Ì» ²«±»»»½»¼»²»» «±º»» ¹»» ²» ½ ½ ª ò Ì» ½ ½ ª ¼»¼ ¾»¼ ±²» ¼»¹»» ±º º»»¼±³ ø¼ú ±º»» ²¼ ¹² º ½ ²½»»ª» ±º ðòðëò öö ß² ¹»»³»² ± ³» ³» ±¼ º±» ²¹» ³ ±º ± ³» ø ² ½»» ²¼±± ³» ²¼» ±«¼±± «³³ ¾»¼ ±²» ±»»»»² ò ß ½±» ±º ±²» ²¼ ½»»» ¼»»½»¼ ² ±²» ±½ ±²»» ³» ²» ±» ò ß ½±» ±º» ± ²¼ ½» ²±²» ±º»» ¼»»½»¼ ²¼±±»»»² ±«¼±± ò Ì ½ ô ² ¹»»³»² ±º ðòè ± ¹» ½±² ¼»»¼ ¹ ò ööö Ì» Í» ³ ² ²µ ½±» ±² ²±²ó ³» ½»» ³ ²» ½±» ±² ¾»»»² ±» ±º ¼ ø ² ½»» ²¼±± ±½ ±² ²¼» ±«¼±± «³³ ò Ì» ²«±» øøð ¾» ²¹»»¼» ²¼±± ²¼ ±«¼±± ³»» «²»»¼ò Ì»» ² ª» ±» ø¼ º»» ¼ ±ª»» ²«±»» ³»» ³ ò Ì» ²«±»»»½»¼»²»» «±º»» ¹»» ²» ½ ½ ª ò Ì» ½ ½ ª ¼»¼ ¾»¼ ±²» ¼»¹»» ±º º»»¼±³ ø¼ú ±º»» ²¼ ¹² º ½ ²½»»ª» ±º ðòðëò öööö Ó± ¼ÍÝÑÎÛ»½»¼ ³» ±¼ º±» ³ ² ²¹ ³ ²¹ ¼ ò ½±» ¾»»»² ïðð ²¼ íððô ïðð ²¼ ½ ²¹ ¹»» µ» ±±¼» ¾± ²» ²¼±± ±» ± ¹ ²»¼ º ±³» ±«¼»ô ²¼ íðð ²¼ ½ ²¹ ¹»» µ» ±±¼» ± ¹ ²»¼ º ±³ ² ² ¼» ±«½»ò Ì» λ «¼»¼ ¾»¼ ±²» ²«³» ½ ½±» ¹ ª»² ²¼ ¾»»» Ô± ô Ó»¼ «³ô ± Ø ¹ ô ²¼ ½ ²¹ ± ô ³»¼ «³ô ± ¹ µ» ±±¼» ±» ¼»»½»¼ ± ¹ ²»¼ º ±³ ² ²¼±± ±«½»ò ÛÓÔ ¾ ÐúÕ»» ª»» ¹ ±ô ²¼ ³ ² ³»ô ³±¼ º ± ½ ²¹»» Ó± ¼Í½±» ¹± ³ ±«²± ½»ò ²»» ±² ±º» ¼ ½±² ²»¼ ²» ±»º ±» ½»² ±»» ±² ± ½±²¼«½»¼» º» ¼ ± µò Ì» ± ±ª ¼»¼ º± ²º± ³ ±² ²¼ ½±³ ª» «±» ±² ²¼ ±«¼ ²± ¾»»»¼ «±² º± ² ±» «±»ò þì ½ ±«¼±± ²¹» þ» ¾»¼ ±²»» «±º» ² ±º ³» ¼» ª»»¼ ± ²¼ ²»¼ ¾ ÛÓÔ ¾ ÐúÕ ²¼ «³ ±²»¹ ¼ ²¹» ± ¹ ² ±º ±» ³» ò Í ³ ²¹»½ ² ô ½±² ³ ² ² ²º»½ ²¹ ³» ô «²»»»² ª» ³» ²¼ ±» ³ ± ¼ ³ º ½ ± ³ ºº»½»»» «ò É» ½ ² ±ª ¼»¼ô ½ ½±³ ±² ²¼ ²» ô º»ó ± ª» ²¼ º»ó²»¹ ª»» «½ ² ²¼ ¼± ±½½«ò ÛÓÔ ¾ ÐúÕ»»¾ ¼ ½ ³ ² ¾ º± ² ²¼ ¼»½ ô ²¼»½ ô «² ª»ô ²½ ¼»² ô»½ ± ½±²» ² ¼ ³ ¹» ²¹ ±«±º» ¼ ½±² ²»¼ ²ô ± ² ½ ±² µ»² ± ±³»¼ ²» ²½» «±²ô» ± ò ÛÓÔ ¾ ÐúÕô ÔÔÝ ÛÓÔ ¾ Üæ ïíïêéìîô Ð ¹» í ±º í

16 Ý»² æ ÎÙß Û²ª ±²³»² ô ²½ò ÝñÑæ Ó ò Õ»²²» Ð ¹ ³ λæ Îïïë éðêêå ÝÝÍÚñíï Ù±«¹ Í»» ñ Í ² Ú ²½ ½± ÛÓÔ ¾ ÐúÕ ïïëð Þ Ü ª»ô Í ïððô Í ² Þ «²±ô Ýß çìðêê øèêê èèèóêêëí Ú øêëð èîçóëèëî ò»³ ¾ò½±³ Ü» ±º Í ³ ²¹æ ðïóîïóîðïë Ü» ±º λ½» æ ðïóîíóîðïë Ü» ±º λ ± æ ðîóðíóîðïë Ó± ¼ÍÌßÌæ ͳ»² Í ½ Í ±» Ì Î» ± Ñ«¼±± Í«³³ æ îïîðììçðæ Ñ«¼» Ù±«¹ Í»»»² ²½» Í»½» ¼»»½»¼ Ñ«¼±± ³» ±» ñ³í Ì ½ ±«¼±± ²¹» Ú» ò äïðð ïõ ïðõ âïððõ øò± ß³» ½ û ß ½± ±» íîð ïí ó îïð ó êôððð éê Þ ¼ ± ±» îôððð ïè ó ìëð ó îìôððð çî Ý ¼± ± «³ ïôïðð îé ó ìëð ó ïðôððð çð Ñ» ¾ ± ² îé é ó ïí ó ïíð îí л² ½ «³ñß» ¹ èëð ïí ó ïéð ó îôéðð êè ͳ«ô л ½±² ô Ó ±³ ½»» ïí é ó ëí ó çîð êí ìôíðð Ì» þì ½ ±«¼±± ²¹» þ ²¼ þú» ò ûþ ½± «³² ±» ½ ± ô ³»¼ «³ô ²¼ ¹ ±» ½±«²» ½«¾ ½ ³»» ²¼» º» ²½ ±º ±½½²½» º±» ¹ ª»² ±»»ò Ì» ± ô ³»¼ «³ô ²¼ ¹ ª »»»²» îòëô ëðô ²¼ çéòë» ½»²» ª »²» ±»» ¼»»½»¼ò Ú±» ³»ô º» ± ª ëí ²¼» º» ²½ ±º ±½½²½» êíûô ±«¼ ³» ²» ½ ¼»»½» ¹ ª»² ±»» ±² êí» ½»² ±º ±«¼±± ³» ²¼ô»² ¼»»½»¼ô îòëû ±º» ³»»»² ²»ª» ¾» ± ëí ±» ñ³íò ²¼±± Í ³» Ô±½ ±²æ îïîðììêêæ Ý º»» û ±º ±«¼±± ± Ú»¼³ ² ½ ó ±» ñ³í ö ø ²¼±± ª ±² λ «æ ïêû ¼Úæ í λ «æ íòïèðð Ý ½ ª æ éòèïìé ² ¼» Í ³ æ Ç» Í»½» Ü»»½»¼ ß ½± ±» Þ ¼ ± ±» Ý ¼± ± «³ л² ½ «³ñß» ¹ ß¹»»³»² ±öö λ «æ ðòèððð Í» ³ ² ²µ ½±» ±²ööö ¼Úæ ê λ «æ ðòèèëé Ý ½ ª æ ðòééïì Ñ«¼» Í ³ æ Ç» Ó± ¼ÍÝÑÎÛöööö ͽ±»æ ïðì λ «æ Ô± Í ±» ñ³í äïðð ïõ ïðõ âïððõ íîð ïêð êçð ÛÓÔ ¾ ÐúÕô ÔÔÝ ÛÓÔ ¾ Üæ ïíïêéìîô Ð ¹» ï ±º í

17 Ý»² æ ÎÙß Û²ª ±²³»² ô ²½ò ÝñÑæ Ó ò Õ»²²» Ð ¹ ³ λæ Îïïë éðêêå ÝÝÍÚñíï Ù±«¹ Í»» ñ Í ² Ú ²½ ½± Ó± ¼ÍÌßÌæ ͳ»² Í ½ Í ±» Ì Î» ± Ô±½ ±²æ îïîðììçìæ α±³ íï û ±º ±«¼±± ± ±» ñ³í Ú»¼³ ² ½ ó ö ø ²¼±± ª ±² ß¹»»³»² ±öö λ «æ îîû ¼Úæ í λ «æ íòïèðð λ «æ ðòêêêé Ý ½ ª æ éòèïìé ² ¼» Í ³ æ Ç» Í»½» Ü»»½»¼ ß ½± ±» Þ ¼ ± ±» л² ½ «³ñß» ¹ Ô±½ ±²æ îïîðìîçéæ ݱ ¼±»² ²½» ± çý û ±º ±«¼±± ± ±» ñ³í Ú»¼³ ² ½ ó ö ø ²¼±± ª ±² ß¹»»³»² ±öö λ «æ ëû ¼Úæ í λ «æ ðòêêêé λ «æ íòïèðð Ý ½ ª æ éòèïìé ² ¼» Í ³ æ Ç» Í»½» Ü»»½»¼ Ý ¼± ± «³ Ñ» ¾ ± ² л² ½ «³ñß» ¹ Ô±½ ±²æ îïîðìíïêæ α±³ ëë û ±º ±«¼±± ± Ú»¼³ ² ½ ó ±» ñ³í ö ø ²¼±± ª ±² λ «æ íû ¼Úæ í λ «æ íòïèðð Ý ½ ª æ éòèïìé ² ¼» Í ³ æ Ç» Í»½» Ü»»½»¼ Ý ¼± ± «³ л² ½ «³ñß» ¹ ÛÓÔ ¾ ÐúÕ ïïëð Þ Ü ª»ô Í ïððô Í ² Þ «²±ô Ýß çìðêê øèêê èèèóêêëí Ú øêëð èîçóëèëî ò»³ ¾ò½±³ Ü» ±º Í ³ ²¹æ ðïóîïóîðïë Ü» ±º λ½» æ ðïóîíóîðïë Ü» ±º λ ± æ ðîóðíóîðïë Í» ³ ² ²µ ½±» ±²ööö ¼Úæ ê λ «æ ðòêëéï Ý ½ ª æ ðòééïì Ñ«¼» Í ³ æ Ò± Ó± ¼ÍÝÑÎÛöööö ͽ±»æ ïïë λ «æ Ô± Í ±» ñ³í äïðð ïõ ïðõ âïððõ Í» ³ ² ²µ ½±» ±²ööö ¼Úæ ê λ «æ ðòíððð Ý ½ ª æ ðòééïì Ñ«¼» Í ³ æ Ò± ïêð ëçð îïð çêð Ó± ¼ÍÝÑÎÛöööö ͽ±»æ λ «æ Ô± Í ±» ñ³í äïðð ïõ ïðõ âïððõ ß¹»»³»² ±öö λ «æ ðòëððð Í» ³ ² ²µ ½±» ±²ööö ¼Úæ ê λ «æ ðòìëéï Ý ½ ª æ ðòééïì Ñ«¼» Í ³ æ Ò± ïí îíð Ó± ¼ÍÝÑÎÛöööö ͽ±»æ ïïî λ «æ Ô± Í ±» ñ³í äïðð ïõ ïðõ âïððõ ëí ïêð ÛÓÔ ¾ ÐúÕô ÔÔÝ ÛÓÔ ¾ Üæ ïíïêéìîô Ð ¹» î ±º í

18 Ý»² æ ÎÙß Û²ª ±²³»² ô ²½ò ÝñÑæ Ó ò Õ»²²» Ð ¹ ³ λæ Îïïë éðêêå ÝÝÍÚñíï Ù±«¹ Í»» ñ Í ² Ú ²½ ½± ÛÓÔ ¾ ÐúÕ ïïëð Þ Ü ª»ô Í ïððô Í ² Þ «²±ô Ýß çìðêê øèêê èèèóêêëí Ú øêëð èîçóëèëî ò»³ ¾ò½±³ Ü» ±º Í ³ ²¹æ ðïóîïóîðïë Ü» ±º λ½» æ ðïóîíóîðïë Ü» ±º λ ± æ ðîóðíóîðïë Ó± ¼ÍÌßÌæ ͳ»² Í ½ Í ±» Ì Î» ± ö Ì» Ú»¼³ ² ½ ó ½ ²±²ó ³» ½»» ³ ²» ª ±² ²» ±º ¼ ø ² ½»ô ²¼±± ±» ½±«² ò Ì» ²«±» øøð ¾» ²¹»»¼»» ²± ³» ² ²¹º«¼ ºº»»²½» ²» ¼ º± ²¼±± ±½ ±² ò Ì»» ² ª» ±» ø¼ º»» ¼ ±ª»» ²«±»»» ¼ ºº»»²½» ¾»»»²» ²¼±± ±½ ±² ò Ì» ²«±»»»½»¼»²»» «±º»» ¹»» ²» ½ ½ ª ò Ì» ½ ½ ª ¼»¼ ¾»¼ ±²» ¼»¹»» ±º º»»¼±³ ø¼ú ±º»» ²¼ ¹² º ½ ²½»»ª» ±º ðòðëò öö ß² ¹»»³»² ± ³» ³» ±¼ º±» ²¹» ³ ±º ± ³» ø ² ½»» ²¼±± ³» ²¼» ±«¼±± «³³ ¾»¼ ±²» ±»»»»² ò ß ½±» ±º ±²» ²¼ ½»»» ¼»»½»¼ ² ±²» ±½ ±²»» ³» ²» ±» ò ß ½±» ±º» ± ²¼ ½» ²±²» ±º»» ¼»»½»¼ ²¼±±»»»² ±«¼±± ò Ì ½ ô ² ¹»»³»² ±º ðòè ± ¹» ½±² ¼»»¼ ¹ ò ööö Ì» Í» ³ ² ²µ ½±» ±² ²±²ó ³» ½»» ³ ²» ½±» ±² ¾»»»² ±» ±º ¼ ø ² ½»» ²¼±± ±½ ±² ²¼» ±«¼±± «³³ ò Ì» ²«±» øøð ¾» ²¹»»¼» ²¼±± ²¼ ±«¼±± ³»» «²»»¼ò Ì»» ² ª» ±» ø¼ º»» ¼ ±ª»» ²«±»» ³»» ³ ò Ì» ²«±»»»½»¼»²»» «±º»» ¹»» ²» ½ ½ ª ò Ì» ½ ½ ª ¼»¼ ¾»¼ ±²» ¼»¹»» ±º º»»¼±³ ø¼ú ±º»» ²¼ ¹² º ½ ²½»»ª» ±º ðòðëò öööö Ó± ¼ÍÝÑÎÛ»½»¼ ³» ±¼ º±» ³ ² ²¹ ³ ²¹ ¼ ò ½±» ¾»»»² ïðð ²¼ íððô ïðð ²¼ ½ ²¹ ¹»» µ» ±±¼» ¾± ²» ²¼±± ±» ± ¹ ²»¼ º ±³» ±«¼»ô ²¼ íðð ²¼ ½ ²¹ ¹»» µ» ±±¼» ± ¹ ²»¼ º ±³ ² ² ¼» ±«½»ò Ì» λ «¼»¼ ¾»¼ ±²» ²«³» ½ ½±» ¹ ª»² ²¼ ¾»»» Ô± ô Ó»¼ «³ô ± Ø ¹ ô ²¼ ½ ²¹ ± ô ³»¼ «³ô ± ¹ µ» ±±¼» ±» ¼»»½»¼ ± ¹ ²»¼ º ±³ ² ²¼±± ±«½»ò ÛÓÔ ¾ ÐúÕ»» ª»» ¹ ±ô ²¼ ³ ² ³»ô ³±¼ º ± ½ ²¹»» Ó± ¼Í½±» ¹± ³ ±«²± ½»ò ²»» ±² ±º» ¼ ½±² ²»¼ ²» ±»º ±» ½»² ±»» ±² ± ½±²¼«½»¼» º» ¼ ± µò Ì» ± ±ª ¼»¼ º± ²º± ³ ±² ²¼ ½±³ ª» «±» ±² ²¼ ±«¼ ²± ¾»»»¼ «±² º± ² ±» «±»ò þì ½ ±«¼±± ²¹» þ» ¾»¼ ±²»» «±º» ² ±º ³» ¼» ª»»¼ ± ²¼ ²»¼ ¾ ÛÓÔ ¾ ÐúÕ ²¼ «³ ±²»¹ ¼ ²¹» ± ¹ ² ±º ±» ³» ò Í ³ ²¹»½ ² ô ½±² ³ ² ² ²º»½ ²¹ ³» ô «²»»»² ª» ³» ²¼ ±» ³ ± ¼ ³ º ½ ± ³ ºº»½»»» «ò É» ½ ² ±ª ¼»¼ô ½ ½±³ ±² ²¼ ²» ô º»ó ± ª» ²¼ º»ó²»¹ ª»» «½ ² ²¼ ¼± ±½½«ò ÛÓÔ ¾ ÐúÕ»»¾ ¼ ½ ³ ² ¾ º± ² ²¼ ¼»½ ô ²¼»½ ô «² ª»ô ²½ ¼»² ô»½ ± ½±²» ² ¼ ³ ¹» ²¹ ±«±º» ¼ ½±² ²»¼ ²ô ± ² ½ ±² µ»² ± ±³»¼ ²» ²½» «±²ô» ± ò ÛÓÔ ¾ ÐúÕô ÔÔÝ ÛÓÔ ¾ Üæ ïíïêéìîô Ð ¹» í ±º í

19 Administration Building Gough Street, SF Project No. R Photo Date: January 22, 2015 Photo #1 Moisture Staining at Ceiling in Cafeteria Photo #2 Moisture Staining and Delamination in Corridor off Gough Street Photo #3 Moisture Staining in Corridor off Gough Street Photo #4 Moisture Staining and Visible Mold Growth at Ceiling on Room 31 Photo #5 Moisture Staining at Ceiling in Room 55