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March 24, 2017 Ms. Jolanta Uchman San

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March 24, 2017 Ms. Jolanta Uchman San Francisco Bay Regional Water Quality Control Board 1515 Clay Street, Suite 1400 Oakland, CA 94612 Subject: Indoor Air Survey for volatile organic compound constituents and associated indoor air mitigation for the property at 1110 University Avenue, Berkeley, California. (Geotracker ID T10000002262; RWQCB File No. 01S0744). Dear Ms. Uchman: INTRODUCTION AND BACKGROUND Stellar Environmental Solutions, Inc. (Stellar Environmental) completed an indoor air sampling program to assess the indoor air impacts from the historic chlorinated solvent plume associated with the former dry cleaning operations, known as Tower Cleaners, at the address 1110 University Avenue [Geotracker ID T10000002262]. To be clear, the Tower Cleaner still operates at the property but as a drop-off and pickup cleaner, where the dry cleaning operations are done offsite. Stellar Environmental, on behalf of the property owners, presents the Water Board with the findings of this indoor air sampling activities documenting the indoor air quality and evaluating the potential impacts of the air quality from vapor intrusion related to a former dry cleaning operations of Tower Cleaners located at 1110 University Avenue, Berkeley, CA. This report is being provided in response to the Reginal Water Quality Control Board-San Francisco Bay Region (Water Board) letter dated February 3, 2017 which requests a Vapor Intrusion Mitigation Plan (VIMP). Per subsequent communication which included discussing that a VIMP could not be done until an adequate indoor air survey was completed, the Water Board emailed an extension letter to the deadline on March 3, 2017, with the new deadline for the report being designated as March 31, 2017. This indoor air survey will serve as baseline representative data of the indoor air quality and will be used to determine the need for vapor Stellar Environmental Solutions, Inc Ms. Jolanta Uchman San Francisco Bay Regional Water Quality Control Board March 24, 2017 Page 2 of 14 mitigation during the period that the building will remain occupied before the planned demolition of the building in 2018 as part of the site redevelopment Before the subject property was purchased by 1110 University, LLC in 2015, a number of subsurface Site investigations were completed—initially commissioned in 2003 by the former property owners and more recently in 2014 and 2015 by the real estate due diligence of the current owner. Since then, Stellar Environmental was retained by 1110 University, LLC, to complete the various follow-up investigations and any remediation needed along with being a regulatory liaison with the Water Board. A corrective action plan and a remedial management plan has been presented to, and subsequently accepted by, the Water Board. This indoor air quality study is the first full building indoor air survey since an initial indoor air test was completed in 2015 by Soma Environmental Engineering Inc (Soma). The January 2015 indoor air sample collected by Soma was reported to contain 170 μg/m3 of Tetrachloroethylene (PCE), exceeding the commercial and residential ESLs of 2.1 µg/m3 and 0.48 μg/m3 respectively. However, that report did not show where the sample was collected so the data point is not really viable as such, except as an indicator that somewhere within the general Tower Cleaner area the sample was collected. This report documents the implementation of the indoor air survey and presents the results of the indoor air sampling conducted on March 6-7, 2017 to establish baseline representative data to determine the impacts of vapor intrusion and the need for vapor mitigation. A total of seven indoor air samples were collected within the subject property as part of this indoor air survey. Four samples were taken from the ground floor: two samples were taken from the Tower Cleaner’s unit; one sample was taken from the unit occupied by Judy Hair and Nails; and one sample was taken from the ground floor residential unit. Three indoor air samples were taken from within the eight upstairs apartment units on the first floor. Attached Figure 1 shows the site location, Figure 2 is a site plan showing the locations of the current indoor air sampling in the ground floor units, with results, and Figure 3 is a site plan showing the current indoor air sampling locations in the first floor, with results. The site Figures are included in Attachment A SUBJECT PROPERTY DESCRIPTION The Towers Cleaners subject site is located in a mixed commercial residential area southeast from the intersection of University Avenue and San Pablo Avenue in Berkeley and contains approximately 6,700 ft2 of land area. According to the USGS Oakland, West, California 7.5- Stellar Environmental Solutions, Inc Ms. Jolanta Uchman San Francisco Bay Regional Water Quality Control Board March 24, 2017 Page 3 of 14 Minute Quadrangle Map, the project site lies on a gently southwest-sloping plain approximately one-half mile east-northeast from the San Francisco Bay. The elevation at the project site is approximately 50 feet above mean sea level. Groundwater flow at the site is to the west-southwest towards San Francisco Bay. The Property is entirely paved with asphalt or concrete walkways and the concrete slab of the current Site building exist. The subject property is occupied by a two-story, rectangular building consisting of approximately 5,200 square feet per floor. In total, there are 9 apartment units and two commercial units within the two story building. The Property is entirely paved with asphalt or concrete walkways and the concrete slab of the current Site building exist. Tower Cleaners, a dry cleaning facility, occupies the ground floor as well as Judy Hair and Nails and a single apartment unit. The second floor is occupied by 8 apartment units. The subject property has been the location of dry cleaning operations for more than 40 years. Dry cleaning operations were discontinued at the property in 2009 and Tower Cleaners functions as a dry cleaner pick-up/dropoff facility. REGULATORY OVERSIGHT HISOTRY AND CONSIDERATIONS Regulatory Oversight History Following the 2015 purchase of the property by 1110 University, LLC, Stellar Environmental was retained to complete the various follow-up investigations and any remediation needed along with being a regulatory liaison with the Water Board, which accepted the role of providing regulatory oversight through the agreement between the Water Board and 1110 University, LLC originally under the Water Board’s Site Cleanup Program (SCP) dated October 23, 2014. The transition to the oversight from the Water Board came after original oversight from The City of Berkeley LOP division was relinquished as part of the division’s transition away from environmental cleanup oversight. A corrective action was presented in the Stellar Environmental report “Corrective Action Plan” (CAP) related to the Site Development of 1110 University, Berkeley, California” dated April 30, 2016. That CAP identified the source area on the east side of the property and presents a preliminary site conceptual model and summarizes the distribution of Site contaminants of concern (COCs), primarily the dry cleaning chemical, PCE and other related volatile organic compounds (VOCs) breakdown products that have been detected in soil, soil gas and groundwater as well as those COCs impacts to indoor air in the current building. The CAP was approved by the Water Board per the correspondence letter dated, July 22, 2016. Subsequently, a vapor mitigation plan was required by the Water Board in a letter dated February 3, 2017. The reason for the Water Board’s request for the vapor mitigation plan was based on the Stellar Environmental Solutions, Inc Ms. Jolanta Uchman San Francisco Bay Regional Water Quality Control Board March 24, 2017 Page 4 of 14 responsible party not implementing the corrective action in a timely fashion. This indoor air survey is in response to the latest communication dated March 3, 2017 from the Water Board to determine a need for vapor mitigation and report on such by March 31, 2017. Regulatory Considerations The Water Board has established Environmental Screening Levels (ESLs) for evaluating the likelihood of environmental impact. ESLs were developed as the lowest screening values for a wide range of common contaminants that might be indicative of site source origin and/or pose a significant risk to human health or the environment, assuming all possible exposure pathways. ESLs are conservative screening-level criteria for soil, soil gas, groundwater and indoor air media, designed to be generally protective of both drinking water resources and aquatic environments; they incorporate both environmental and human health risk considerations. ESLs are not cleanup criteria (i.e., health-based numerical values or disposal-based values). Rather, they are used as a preliminary guide in determining whether remediation and/or investigation may be warranted. Exceedance of ESLs suggests that additional investigation and/or remediation is warranted. However, because some environmental and human health concerns considered in determining ESLs may not be applicable where exposure routes are not complete, soil that exceeds ESLs does not necessarily pose a significant risk to human health or the environment. The ESLs have been updated periodically, the last update being in February 2016. Different ESLs are published for commercial/industrial vs. residential land use, for sites where groundwater is a potential drinking water resource vs. is not a likely drinking water resource, and for the type of receiving water body. In this case we are focused on evaluating any degradation of indoor air quality as a result of vapor intrusion for the ESLs to be directly applicable. If the indoor air quality is compromised by commercial operations such as dry cleaning, where the VOC—specifically PCE—originates from the chemical treatment of the clothes that are brought in and stored at the Tower Cleaner facility, versus the PCE source being from vapor intrusion that originated from subsurface contamination associated with the former dry cleaner operations within the building, then the Cal OSHA Permissible Exposure Limits (PELs) would be applicable versus the commercial ESLs. Indoor air ESLs are functional guidelines when assessing risk to human health, especially in a residential setting where there is possibility for exposure over longer periods of time. However, for a commercial setting, a distinction is made in permissible exposure limits when comparing a dry cleaning facility that conducts the cleaning onsite, to a commercial drop-off facility. Since the Tower Cleaners business no longer has any association with actual dry cleaning, but onsite indoor air data strongly suggest (as discussed later) the dry cleaned clothes coming into the Stellar Environmental Solutions, Inc Ms. Jolanta Uchman San Francisco Bay Regional Water Quality Control Board March 24, 2017 Page 5 of 14 facility are off-gassing PCE, the PEL versus commercial ESL would appear to be the “Applicable or Relevant and Appropriate Requirement” (ARAR) for the commercial space. However, some contribution by both the clothes brought into the Tower Cleaner for distribution to client as well as some component of vapor intrusion may be responsible for the measured PCE in the indoor air of the commercial space. The permissible exposure limits for PCE published by Cal OSHA for an eight hour work day in a setting where dry cleaning is conducted onsite is 170 mg/m3, while the published commercial indoor air ESL for PCE is 2.1 µg/m3. These values are separated by orders of magnitude. When considering the differences in regulatory limits and applying them to the Tower Cleaners commercial space, it creates the question about guidance with regard to which standard would be more realistic while assessing risk to human health. When considering the residential exposure however, it is clear that the ESL should take president because the residential occupancy are not in any ways workers associated with the dry cleaners. Thus in order to meet the more resistive residential standards where there is shown to be indoor air in the residential units that exceed the applicable ESL the need to also treat the indoor air at its point of origin at the Tower dry cleaners needs to occur. So while the Cal OSHA standard may reasonably apply to the commercial space, practically speaking to be protective of the workers and residents onsite, it is the opinion of Stellar Environmental that residential and commercial ESLs are the appropriate standards for the spaces tested. LABORATORY ANALYTICAL METHODS Soil-Gas and Indoor Air Analytical Method Soil-Gas and Indoor Air Samples were analyzed using the following methods:  8010 list including chlorinated volotile organic compounds - by EPA Method TO-15. The Indoor ambient air samples for TO15 analysis were collected in 6-liter Summa™ canisters. Laboratory-certified clean sampling equipment including Summa™ canisters, manifolds equipped with a filter, pressure gauge and the appropriate flow controller were used. The indoor air samples for TO15 analysis were completed by Curtis & Tompkins Laboratories, Berkeley, California. Curtis & Tompkins Laboratories is National Environmental Laboratory Accreditation Program-ELAP-certified. Summa™ canisters were maintained at ambient temperature and out of direct sunlight. All samples were transported by courier under chain of custody to the analytical laboratory. The analyses were performed at a standard turnaround. Stellar Environmental Solutions, Inc Ms. Jolanta Uchman San Francisco Bay Regional Water Quality Control Board March 24, 2017 Page 6 of 14 FIELDWORK IMPLEMENTATION Field activities discussed under this heading were conducted on March 6 and 7, included collecting a total of seven representative samples of indoor-air. The laboratory results are summarized in the tables included in Attachment B. documentation of the field activities is included in Attachment C. The certified analytical reports and chain-of-custody records are presented in Attachment D. 2017 and analytical A photolaboratory INDOOR AIR SURVEY METHODOLOGY The request for a vapor mitigation plan, per the Water Board February 2017 letter correspondence, was based on the indoor air analytical results from sampling conducted in 2015. The results showed PCE at a concentration of 170 µg/m3 in one sample collected in an unknown location within the tower cleaners space (no figures were included in the Soma report that show the sampling location). Though the location of the indoor air sample is unknown, concern for vapor intrusion was evident and the need for representative samples within the entire building were taken during this indoor air survey. Indoor-air was collected in accordance with the DTSC/Cal EPA Vapor Intrusion Guidance (October 2011) procedures and methodology. Because there are both commercial and residential spaces in the building, both 8-hour (for commercial) and 24-hour (for residential) sampling protocols were used in the appropriate spaces and run. Three indoor air sampling locations were placed in the two commercial units in the ground floor. Two were placed within the historic Tower Cleaners facility and one was placed in Judy’s Hair and Nail Salon. Four indoor air sampling locations were placed among the residential apartments within the building. One was placed in the ground floor apartment and three were placed among the apartments on the first floor. Residential Units The residential indoor air sampling entailed 24-hour air sampling tests per procedures and protocols of the DTSC guidance. Stellar Environmental personnel set up the 24-hour sampling apparatus in four locations within residential apartments: One sampling apparatus was placed in the hallway to the kitchen of apartment 7A located on the ground floor (sample A1); another was placed in the living room of apartment 7 located on the first floor (sample A2); one was placed in the kitchen of apartment 3 located on the first floor (sample A3); and the fourth sampling apparatus was placed in the northwest corner of the living room in apartment 2 (sample A4). The 24-hour test apparatus was set up at approximately 8:30 AM on Monday March 6, 2017 and removed 24 hours later at approximately the same time the next day, Tuesday March 7, 2017. Stellar Environmental Solutions, Inc Ms. Jolanta Uchman San Francisco Bay Regional Water Quality Control Board March 24, 2017 Page 7 of 14 The air flow regulators on the sampling apparatus control the air inflow rate were calibrated by the laboratory for the specific method analyses to be 4 ml/minute for the TO15 samples. Commercial Units The commercial indoor air evaluation entailed an 8-hour air sampling test per procedures and protocols of the DTSC guidance. Stellar Environmental personnel set up the 8-hour sampling apparatus in three locations within the commercial spaces on the ground floor of the building. Two indoor air sampling canisters were placed in Tower Cleaners; one was placed by the northern wall of the building, in close proximity to the revolving clean clothes hanging apparatus (sample C1); another one was placed in the area of the former dry cleaning machine location that is now what looks to be a folding room (sample C2). The other sampling container was placed in Judy’s Hair and Nail salon, behind one of the service chairs closer to the southern wall of the commercial space (sample C3). The 8-hour test apparatus was set up at approximately 8:20 AM on Monday March 6, 2017 and removed 8 hours later around 4:20 the same day. The air flow regulators on the sampling apparatus control the air inflow rate were calibrated by the laboratory for the specific method analyses to be 12 ml/minute for the TO15 samples. The Summa™ sample canisters were identified and labeled when placed in their respective sampling locations at the beginning of the test and the date and time were recorded on the label the next day at the end of the test, thus the potential to confuse the sample locations was eliminated. The sampling locations with analytical data for the indoor air samples are shown on Figure 2 and Figure 3 and summarized 1n Table 1. INDOOR AIR SURVEY ANALYTICAL RESULTS AND DISCUSSION The analytical results of the March 6-7, 2017 indoor air survey indicated exceedances for both residential and commercial indoor air ESLs for PCE in 7 of the 7 indoor air samples collected and analyzed. In addition to detections of PCE, other chlorinated volatile organic compounds were detected in the indoor air including carbon tetrachloride, methylene chloride, and trichloroethene (TCE). Volatile Organic Compounds (Method TO15 Analysis; Indoor-Air) Commercial Samples Tower Cleaners: Indoor air sample C1, placed by the clean clothing rack in the northern part of the space showed the highest concentration of PCE, at 110 µg/m3, exceeding the commercial ESL for PCE of 2.1 µg/m3. Methylene chloride was detected below the commercial ESL at 1.2 µg/m3. Carbon Tetrachloride was detected below the commercial ESL at 0.084 µg/m3. Stellar Environmental Solutions, Inc Ms. Jolanta Uchman San Francisco Bay Regional Water Quality Control Board March 24, 2017 Page 8 of 14 The indoor air sample C2, placed in the southern part of Tower Cleaners showed a PCE concentration of 60 µg/m3, exceeding the commercial ESL. Sample C2 is located in the area of the former Tower Cleaner space where the former dry cleaning machine operated, and where there are no current Tower (drop-off and pickup) cleaner operations. Sample C2 also showed detections of 1.4 µg/m3 methylene chloride and 0.13 µg/m3 of carbon tetrachloride, both under their respective commercial ESLs. Judy’s Hair and Nail: Indoor air sample C3, placed behind one of the service chairs in the southern portion of the commercial space showed a concentration of PCE at 4.8 µg/m3, exceeding the commercial ESL. Methylene chloride was detected at 1.4 µg/m3 and carbon tetrachloride was detected at 0.14 µg/m3, both at concentrations lower than their respective commercial ESLs. Volatile Organic Compounds (Method TO15 Analysis; Indoor-Air) Residential Samples Ground Floor Apartment 7A: Indoor air sample 1A showed a PCE concentration of 0.80 µg/m3, which exceeds the residential ESL of 0.48 µg/m3. Methylene chloride was detected at 1.3 µg/m3, which is above the residential ESL of 1.0 µg/m3 . Carbon tetrachloride was detected at 0.090 µg/m3, exceeding the residential ESL of 0.067 µg/m3. Apartment 7-First Floor: Indoor air sample A2 showed a PCE concentration of 62 µg/m3, exceeding the residential ESL for PCE of 0.48 µg/m3. Methylene chloride was detected at 1.0 µg/m3, which just meets the residential ESL. Carbon tetrachloride was detected at 0.23 µg/m3, exceeding its residential ESL. Apartment 3-First Floor: Indoor air sample A3 showed a PCE concentration of 93 µg/m3., the highest concentration in the first floor apartments, which exceeds the residential ESL of 0.48 µg/m3. Methylene chloride was detected at 1.8 µg/m3, which is above the residential ESL of 1.0 µg/m3. Carbon tetrachloride was detected at 0.16 µg/m3 , also exceeding the residential ESL of 0.067 µg/m3. Apartment 2-First Floor: Indoor air sample A4 showed a PCE concentration of 44 µg/m3 which exceeds the residential ESL of 0.48 µg/m3 . Methylene chloride was detected at 1.0 µg/m3, which just meets its residential ESL. Carbon tetrachloride was detected at 0.12 µg/m3, exceeding its residential ESL. The analytical results of the indoor-air samples for those compounds detected in excess of the indoor air ESLs are included on Figure 5 and included in Attachment B. The analytical results of Stellar Environmental Solutions, Inc Ms. Jolanta Uchman San Francisco Bay Regional Water Quality Control Board March 24, 2017 Page 9 of 14 all detected compounds in the indoor-air samples are summarized in Table 1 included in Attachment B. The certified laboratory results are contained in Attachment D. VAPOR MITIGAITON PLAN Based on the analytical results in the residential units a vapor mitigation plan is needed until the units are vacated before the building is demolished. The vapor mitigation also need to be set up in the commercial space as that is the point of origin of the PCE in the indoor air—likely both through the off-gassing for the brought in dry cleaned clothes and vapor intrusion from the former dry cleaner operations resulting in subsurface contamination. Although the distribution of the indoor air in the commercial space suggest the clothes dry cleaned offsite and brought into the Tower Cleaners for distribution to customers is off-gassing PCE and responsible for much of the indoor air quality degradation, the most effective manner to remove the residential exposure is to include treatment of the commercial air quality. The vapor mitigation needs of the Tower Cleaner commercial space is more problematic in terms of it needs because although the commercial ESLs for PCE in indoor air are clearly exceeded, one cannot compare this space with a “former dry cleaner site” that no longer has any association with dry cleaning, so whether the ESLs are the appropriate point of compliance versus the Cal OSHA standards for dry cleaning establishments is unclear. In any event the most effective way to mitigate the elevated PCE in indoor air in the residential units is to treat both the commercial and residential units. VAPOR MITIGATION OF INDOOR USING AIR FILTERS Given the distribution of the PCE in the indoor air in both the ground floor mainly commercial units and the first floor residential units being divided as shown in Figures 2 and 3 the most effective manner to mitigate the indoor air is through the use of individual air filtering units with designed to filter out—or adsorb—VOCs. The criterial for evaluating the multiple such units available commercially was based on the following considerations:  Effective coverage area of 600 square feet or more per unit;  Have Activated Carbon as part of the filter unit with a lifetime of one year or more;  Minimal noise levels;  Be relatively small to minimize placement in apartments;  Operational continuously; and Stellar Environmental Solutions, Inc Ms. Jolanta Uchman San Francisco Bay Regional Water Quality Control Board March 24, 2017 Page 10 of 14  Relatively low energy requirements. While none of the smaller air filters units found were modeled specifically for PCE removal the selected one has an activated carbon filter designed for VOC removal although the test specification presented is on the removal of more common VOCs, benzene, toluene and xylene and does not call out any removal testing for PCE. However, PCE should be filtered out by activate carbon in the same manner as the xylene, benzene and toluene is. The air purifying filter selected is the Rabbit 700A which has an effective coverage area of 700 square feet, carbon filter lifespan of one to two years, noise levels of 20.8 to 45.6 decibel level (dep[ending on whether its operation is on lowest or highest setting), is relatively small and compact and weights under 20 pounds. Model comparisons, general information and more detailed specification for the Rabbit Air® model Minus A2-SPA700A are shown in Attachment E. Air Purifier Use in first floor Commercial Units The Judy’s Hair and Nail Salon commercial space should have one of the units placed within it. The indoor air concentrations of PCE, at 4.8 µg/m3 there were not very elevated, so the placement is not as critical but it should be placed in the unit so as not to be too close to the doorway, similar as shown for the sampling location on Figure 2. The currently operation Tower Cleaners is mainly in the northern half of the Tower Cleaner space and the maximum concentration found in the indoor air survey of 110 µg/m3 PCE at the sampling location C1 as shown on Figure 2 is a good place to locate the air purifier. The location to place the second air purifier unit is in the former dry cleaner operation area as shown in Figure 2 where C2 was located. Air Purifier Use in first Ground Floor and First Floor Residential Units All of the 9 residential units should have a Rabbit 700p air purifier placed within them. Each of the residential units is approximately 600 square feet. Although the range of PCE detected was substantial, all were above the residential ESLs and all of apartments, though not individually sampled, can assume to contain PCE above the ESLs. The ownership should work with the residents to inform them of the need for the air purifier use for the remainder of the time they reside there. Figures 2 and 3 show the residential apartment plans. Stellar Environmental Solutions, Inc Ms. Jolanta Uchman San Francisco Bay Regional Water Quality Control Board March 24, 2017 Page 11 of 14 Post Air Purifier Use Verification Sampling Following two months of continuous operation of the implementation of the vapor mitigation plan through the placement of the Rabbit 700p air purifiers as described an indoor air mitigation plan verification sampling should be completed. The verification sampling should include sampling at the two commercial and two residential sampling locations with the highest POCRE detection, at sampling locations C1, C2, A2 and A3. The indoor air sampling plan will follow the same procedures and protocols established in the baseline sampling. SUMMARY, CONCLUSIONS AND RECOMMENDATIONS This indoor air survey and associated vapor mitigation plan was conducted in response to the letter sent from the Water Board, dated February 3, 2017, with an updated deadline of March 31, 2017 given in their subsequent letter of March 3, 2017. The Water Board letter required a vapor mitigation plan for the building at 1110 University Avenue. However, a vapor mitigation plan could not be completed without the prerequisite representative baseline data. This indoor air survey completed serves as baseline of representative data of the indoor air quality and it was used to design the vapor mitigation plan described. It should noted that the vapor mitigation plan is based on the understanding that the period that the building will remain occupied before the planned demolition of the building in 2018 is approximately the end of 2017. The work documented in this study was conducted in general accordance with standard EPA, Water Board and DTSC methods and protocols established for investigations of this type. Stellar Environmental, on behalf of the property owners, presents the Water Board with the findings of the recent indoor air sampling survey and the plan to mitigate the PCE vapor within the building until the tenant vacate the building to allow for it demolition, subsurface site remediation and the property redevelopment of 1110 University Avenue, Berkeley, California. SUMMARY AND CONCLUSIONS  The Towers Cleaners subject site is slated for redevelopment in early 2018 with the current tenants vacating by December 2017, accroding to the current ownership. The building is then slated for demolition in early 2018, followed by site remediation of the source area as described in the Stellar Environmental report “Corrective Action Plan” (CAP) related to the Site Development of 1110 University, Berkeley, California” dated April 30, 2016. That CAP identified the source area on the mid-section east side of the property and presents a preliminary site conceptual model and summarizes the distribution of Site contaminants of concern (COCs), primarily the dry cleaning chemical, Stellar Environmental Solutions, Inc Ms. Jolanta Uchman San Francisco Bay Regional Water Quality Control Board March 24, 2017 Page 12 of 14 tetrachloroethene (PCE) and other related VOCs breakdown products that have been detected in soil, soil gas and groundwater.  This indoor air quality study, conducted on March 6-7, 2017, shows that PCE is detcted in all 7 of the summa samplers set with 8-hour (for the commercial spaces) or 24-hour (for the resedential spaces) regultors to compare the VOC to the commercial and residential ESLs. This indoor air survey is the first full building indoor air survey since an initial indoor air test was completed in 2015 by Soma that was reported to contain 170 μg/m3 of PCE, althoigh there is no infortmation about where that sample was collected.  The analytical results of the March 6-7, 2017 indoor air survey indicated exceedances both residential and commercial indoor air ESLs for PCE in 7 of the 7 indoor air samples collected and analyzed. In addition to detections of PCE, other chlorinated volatile organic compounds were detected in the indoor air: carbon tetrachloride, methylene chloride, and trichloroethene.  Analytical results within the commercial space showed PCE was detected above the commercial ESL of 2.1 µg/m3 in 3 of the 3 samples. Samples taken within the Tower Cleaners facility showed concentrations between 110 µg/m3 in smaple C1 and 60 µg/m3. In sample C2. The indoor air samples collected from within Judy’s Hair and Nail salon showed lower PCE concentrations when compared to the indoor air of Tower Cleaners, with C3 showing a concentration of 4.8 µg/m3.  Analytical results within the residential apartments showed PCE was detected above the residential ESL of 0.48 µg/m3 in 4 of the 4 samples collected. The PCE detected ranged from a low of 0.80 µg/m3 in the one downstairs apartment unit to a maximum of 93 µg/m3 in apartment unit A3, collected on the first floor. In addition to PCE, carbon tetrachloride was also detected at concentrations above the residentail ESL of 0.067 µg/m3 in 4 out of the 4 indoor air samples taken from within apartments. Methylene chloride was detected in A1 and A3 at concentrations above the residential ESL of 1.0 µg/m3. Trichloroethene was detected to be above the residential ESL of 0.48 µg/m3 in sample A3.  It not possible to quantify the amount of PCE orignating formn vapor intrusion from subsurface contamination assoctated with the historicaly spill/leak(s) of PCE to the environment from the original Tower Cleaner operations, versus what is coming from off-gassing of the dry cleaned clothes that are brought into the current drop-off and pickup cleaners. But the air survey data shows a higher concentration (at 110 µg/m3) in the sample near the entry where the dry cleaners clothes are stored until picked-up, compared Stellar Environmental Solutions, Inc Ms. Jolanta Uchman San Francisco Bay Regional Water Quality Control Board March 24, 2017 Page 13 of 14 to the interior area further away from the stored clothes (at 60 µg/m3) where the former dry cleanering machine and chemcial storage of PCE was located.  While the application of the ESLs are not totally clear as a result of the indication that some of the PCE appears to orignate for the off-gassing from clothes brought into the dry cleaners for eventual pickup by customers, the only way to effectivley mitigate the vapor to the residential units is to place air purifying units within them, along with the commercial spaces to reduce the higher concentration found there.  The vapor mitigation plan air purifying filter selected is the Rabbit 700A which has an effective coverage area of 700 square feet, carbon filter lifespan of one to two years, noise levels of 20.8 to 45.6 decibel level (depending on whether its operation is on lowest or highest setting), is relatively small and compact and weights under 20 pounds. RECOMMENDATIONS  Upload this report to the Water Board for their review and approval of the vapor mitigation plan;  Implement the vaor mitigation plan; and  Implement the post vapor mitigation plan verification sampling and report on the finding of its efficacy to remove the PCE vapor to levels at or below ESLs. This report has been prepared for the exclusive use by the Property Owners (responsible party), the regulatory agencies, and their authorized assigns and/or representatives. No reliance on this report shall be made by anyone other than those for whom it was prepared. We declare, under penalty of perjury, that the information and/or recommendations contained in the attached document or report are true and correct to the best of our knowledge. If you have any questions regarding this report, please contact us at (510) 644-3123. Sincerely, Mr. Henry Pietropaoli, P.G. Principal Geologist and Project Manager cc: Mr. Richard S. Makdisi, P.G Principal Geochemist and President Mr. Stephen Parker, Property Owner, 1110 University Ave, LLC Ms. Cheryl Prowell, Water Board Section Leader Stellar Environmental Solutions, Inc Ms. Jolanta Uchman San Francisco Bay Regional Water Quality Control Board March 24, 2017 Page 14 of 14 REFERENCES AEI Consultants, 2 0 0 2 . Phase I Environmental Site Assessment 1110 University Avenue, Berkeley, California. July 18. Gribi Associates. 2010. Report of Monitoring Well Installation Activities. Tower Cleaners, 1110 University Avenue, Berkeley, California. September 29. Gribi Associates. 2011. Soil and Soil Vapor Investigation Report. Tower Cleaners, 1110 University Avenue, Berkeley, California. November 4 Regional Water Quality Control Board (Water Board), 2007. San Francisco Bay Basin (Region 2) Water Quality Control Board (Basin Plan). January 18. Regional Water Quality Control Board – San Francisco Bay Region (Water Board), 2016. Screening for Environmental Concerns at Sites with Contaminated Soil and Groundwater. Revised February 22. SOMA Environmental Engineers. 2015. Additional Investigation, Well Installation, and MPE Pilot Testing Report. March 16. Stellar Environmental Solutions, Inc. 2016. Corrective Action Plan, 1110 University Ave, Berkeley, CA. May 11. Stellar Environmental Solutions, Inc. 2016. Risk Management Plan, 1110 University Ave, Berkeley, CA. May 11. U.S. Geological Survey (USGS), 1959. Oakland East 7.5-minute Quadrangle, 1:24,000 scale, photorevised 1983. West Environmental, 2016. Summary of Investigation, Tower Cleaners, 1110 University Ave, Berkeley, CA. January 27. Stellar Environmental Solutions, Inc ATTACHMENT A Figures 2017-12-03 Project location Tower Cleaners 1110 University Ave., Berkeley, CA By: SITE LOCATION MAP MJC FEBRUARY 2017 Figure 1 C3 PCE 4.8 Commercial ESL 2.1 C2 PCE 60 Commercial ESL 2.1 C2 Commercial space C3 Apt. 7A Area of former dry cleaner C1 Commercial space (Tower Cleaners) Commercial ESL 2.1 A1 Residential ESL PCE 0.80 0.48 CT 0.090 0.067 MC 1.3 1.0 LEGEND Location of indoor air sample (Feb. 2017) 2017-12-02 CT = Carbon Tetrachloride MC = Methylene Chloride PCE = Tetrachloroethene Note: C in sample ID indicates 8-hour sample A in sample ID indicates 24-hour sample All samples in µg/m3 SITE PLAN SHOWING GROUND FLOOR INTERIOR, LOCATION OF INDOOR AIR SAMPLES, AND ANALYTICAL RESULTS EXCEEDING ESLS 1110 University Ave., Berkeley, CA C1 PCE 110 A1 Figure 2 by: MJC MARCH 2017 A3 PCE 93 TCE 0.49 CT 0.16 MC 1.8 Residential ESL 0.48 0.48 0.067 1.0 PCE CT A2 62 0.23 Residential ESL 0.48 0.067 A3 Apt. 1 Apt. 3 Apt. 2 Apt. 4 Apt. 5 A2 Apt. 6 Apt. 7 Apt. 8 A4 2017-12-01 Residential ESL 0.48 0.067 LEGEND Location of 24-hour indoor air sample (Feb. 2017) CT = Carbon Tetrachloride MC = Methylene Chloride PCE = Tetrachloroethene TCE = Trichloroethene All samples in µg/m3 SITE PLAN SHOWING FIRST FLOOR INTERIOR, LOCATION OF INDOOR AIR SAMPLES, AND ANALYTICAL RESULTS EXCEEDING ESLS 1110 University Ave., Berkeley, CA A4 PCE 44 CT 0.12 Figure 3 by: MJC MARCH 2017 ATTACHMENT B Analytical Summary Tables Table 1 Current Analytical Results of Detected Compounds in Indoor Air 1110 University Avenue, Berkeley, California C1 C2 C3 (Tower Cleaners) (Tower Cleaners) (Hair and Nail) A1 (Apt. 7A) A2 (Apt. 7) A3 (Apt. 3) A4 (Apt. 2) ESL ESL (Commercial) (Residential) Analyte Method TO15 Analysis Carbon Tetrachloride 0.084 0.13 0.14 0.090 0.23 0.16 0.12 0.29 0.067 1,1-Dichloroethene 0.14 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 310 73 cis-1,2-Dichloroethene <0.40 <0.40 <0.40 <0.40 <0.40 <0.40 <0.40 35 8.3 trans-1,2-Dichloroethene <0.40 <0.40 <0.40 <0.40 <0.40 <0.40 <0.40 350 83 Methylene chloride 1.2 1.4 1.4 1.3 1.0 1.8 1.0 12 1.0 Tetrachloroethene 110 60 4.8 0.80 62 93 44 2.1 0.48 1,1,1-Trichloroethane 1.9 1.1 <0.55 <0.55 1.1 0.88 <0.55 4,400 1,000 Trichloroethene 0.44 0.40 0.051 <0.027 0.38 0.49 0.40 3.0 0.48 Vinyl Chloride <0.013 <0.013 <0.013 <0.013 <0.013 <0.013 <0.013 0.16 0.0095 Notes: ESL= Environmental Screening Level for residential Indoor-Air (Water Board 2016, Tier 1). Results in bold type exceed regulatory ESLs; NLP= no level published ; NA = not analyzed j = indicates compound was detected below quantification limit and is a statistical estimated value; All results are reported in micrograms per cubic meter (µg/m³) -Indicates Concentrations Exceeding Residentail ESLs -Indicates Concentrations Exceeding Commercial ESLs ATTACHMENT C Photo-documentation ‘’ Subject : C1Indoor air sampling canister placed in Tower Cleaners . Site: 1110 University Avenue Berkeley, California Date Taken: March 6, 2017 Project No.: SES 2017-12 Photographer: B Blumenfeld Photo No.: 01 Subject : C2Indoor air sampling canister placed in Tower Cleaners . Site: 1110 University Avenue Berkeley, California Date Taken: March 6, 2017 Project No.: SES 2017-12 Photographer: B Blumenfeld Photo No.: 02 STELLAR ENVIRONMENTAL SOLUTIONS, INC. Subject : C3Indoor air sampling canister placed in Judy’s Hair and Nail Salon . Site: 1112 University Avenue Berkeley, California Date Taken: March 6, 2017 Project No.: SES 2017-12 Photographer: B Blumenfeld Photo No.: 03 Subject : A2 Indoor air sampling canister placed in Apartment unit 7 . Site: 1110 University Avenue Berkeley, California Date Taken: March 6, 2017 Project No.: SES 2017-12 Photographer: B Blumenfeld Photo No.: 04 STELLAR ENVIRONMENTAL SOLUTIONS, INC. Subject : A3Indoor air sampling canister placed in apartment unit 3 . Site: 1110 University Avenue Berkeley, California Date Taken: March 6, 2017 Project No.: SES 2017-12 Photographer: B Blumenfeld Photo No.: 05 Subject : A4 Indoor air sampling canister placed in apartment unit 2 . Site: 1110 University Avenue Berkeley, California Date Taken: March 6, 2017 Project No.: SES 2017-12 Photographer: B Blumenfeld Photo No.: 06 STELLAR ENVIRONMENTAL SOLUTIONS, INC. Subject : A1Indoor air sampling canister placed in apartment unit 7A . Site: 1110 University Avenue Berkeley, California Date Taken: March 6, 2017 Project No.: SES 2017-12 Photographer: B Blumenfeld Photo No.: 07 STELLAR ENVIRONMENTAL SOLUTIONS, INC. ATTACHMENT D Certified Laboratory Analytical Results and Chain-of-Custody Record McCampbell Analytical, Inc. "When Quality Counts" Analytical Report WorkOrder: 1703338 Report Created for: Stellar Environmental Solutions 2198 Sixth St. #201 Berkeley, CA 94710 Project Contact: Project P.O.: Project Name: Henry Pietropaoli 2017-09 Tower Cleaners Berkeley, CA Project Received: 03/07/2017 Analytical Report reviewed & approved for release on 03/10/2017 by: Angela Rydelius, Laboratory Manager The report shall not be reproduced except in full, without the written approval of the laboratory. The analytical results relate only to the items tested. Results reported conform to the most current NELAP standards, where applicable, unless otherwise stated in the case narrative. 1534 Willow Pass Rd. Pittsburg, CA 94565 ♦ TEL: (877) 252-9262 ♦ FAX: (925) 252-9269 ♦ www.mccampbell.com CA ELAP 1644 ♦ NELAP 4033ORELAP Page 1 of 17 McCampbell Analytical, Inc. "When Quality Counts" 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] Glossary of Terms & Qualifier Definitions Client: Project: WorkOrder: Stellar Environmental Solutions Tower Cleaners Berkeley, CA 1703338 Glossary Abbreviation %D Serial Dilution Percent Difference 95% Interval 95% Confident Interval DF Dilution Factor DI WET (DISTLC) Waste Extraction Test using DI water DISS Dissolved (direct analysis of 0.45 µm filtered and acidified water sample) DLT Dilution Test (Serial Dilution) DUP Duplicate EDL Estimated Detection Limit ITEF International Toxicity Equivalence Factor LCS Laboratory Control Sample MB Method Blank MB % Rec % Recovery of Surrogate in Method Blank, if applicable MDL Method Detection Limit ML Minimum Level of Quantitation MS Matrix Spike MSD Matrix Spike Duplicate N/A Not Applicable ND Not detected at or above the indicated MDL or RL NR Data Not Reported due to matrix interference or insufficient sample amount. PDS Post Digestion Spike PDSD Post Digestion Spike Duplicate PF Prep Factor RD Relative Difference RL Reporting Limit (The RL is the lowest calibration standard in a multipoint calibration.) RPD Relative Percent Deviation RRT Relative Retention Time SPK Val Spike Value SPKRef Val Spike Reference Value SPLP Synthetic Precipitation Leachate Procedure ST Sorbent Tube TCLP Toxicity Characteristic Leachate Procedure TEQ Toxicity Equivalents WET (STLC) Waste Extraction Test (Soluble Threshold Limit Concentration) Quality Control Qualifiers F2 LCS/LCSD recovery and/or RPD is out of acceptance criteria. Page 2 of 17 McCampbell Analytical, Inc. "When Quality Counts" 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] Case Narrative Client: Stellar Environmental Solutions Work Order: 1703338 Project: Tower Cleaners Berkeley, CA March 13, 2017 TO-15 ANALYSIS All summa canisters are EVACUATED 5 days after the reporting of the results. Please call or email if a longer retention time is required. In an effort to attain the lowest reporting limits possible for the majority of the TO-15 target list, high level compounds may be analyzed using EPA Method 8260B. Polymer (Tedlar) bags are not recommended for TO15 samples. The disadvantages are listed in Appendix B of the DTSC Active Soil Gas Advisory of July 2015. CA ELAP 1644 ♦ NELAP 4033ORELAP Angela Rydelius, Lab Manager Page 3 of 17 McCampbell Analytical, Inc. "When Quality Counts" 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] Analytical Report Client: Date Received: Date Prepared: Project: Stellar Environmental Solutions 3/7/17 16:15 3/9/17 Tower Cleaners Berkeley, CA WorkOrder: Extraction Method: Analytical Method: Unit: 1703338 TO15 TO15 µg/m³ Volatile Organic Compounds Client ID C1 Initial Pressure (psia) 13.64 Analytes Carbon Tetrachloride 1,1-Dichloroethene Lab ID Matrix Date Collected Instrument 1703338-001A Indoor Air 03/06/2017 16:26 GC24 Batch ID 135311 Final Pressure (psia) Analyst(s) 13.64 AK Result RL DF Date Analyzed 0.084 0.0064 1 03/09/2017 02:03 0.14 0.10 1 03/09/2017 02:03 cis-1,2-Dichloroethene ND 0.40 1 03/09/2017 02:03 trans-1,2-Dichloroethene ND 0.40 1 03/09/2017 02:03 Methylene chloride 1.2 0.88 1 03/09/2017 02:03 Tetrachloroethene 110 0.069 1 03/09/2017 02:03 1.9 0.55 1 03/09/2017 02:03 0.44 1,1,1-Trichloroethane Trichloroethene 0.027 1 03/09/2017 02:03 Vinyl Chloride ND 0.013 1 03/09/2017 02:03 Surrogates REC (%) Limits 1,2-DCA-d4 86 70-130 03/09/2017 02:03 Toluene-d8 100 70-130 03/09/2017 02:03 4-BFB 100 70-130 03/09/2017 02:03 (Cont.) Angela Rydelius, Lab Manager Page 4 of 17 McCampbell Analytical, Inc. "When Quality Counts" 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] Analytical Report Client: Date Received: Date Prepared: Project: Stellar Environmental Solutions 3/7/17 16:15 3/9/17 Tower Cleaners Berkeley, CA WorkOrder: Extraction Method: Analytical Method: Unit: 1703338 TO15 TO15 µg/m³ Volatile Organic Compounds Client ID C2 Initial Pressure (psia) 13.92 Analytes Carbon Tetrachloride Lab ID Matrix Date Collected Instrument 1703338-002A Indoor Air 03/07/2017 16:26 GC24 Batch ID 135311 Final Pressure (psia) Analyst(s) 13.92 AK Result 0.13 RL DF Date Analyzed 0.0064 1 03/09/2017 02:58 1,1-Dichloroethene ND 0.10 1 03/09/2017 02:58 cis-1,2-Dichloroethene ND 0.40 1 03/09/2017 02:58 trans-1,2-Dichloroethene ND 0.40 1 03/09/2017 02:58 Methylene chloride 1.4 0.88 1 03/09/2017 02:58 Tetrachloroethene 60 0.069 1 03/09/2017 02:58 1.1 0.55 1 03/09/2017 02:58 0.40 1,1,1-Trichloroethane Trichloroethene 0.027 1 03/09/2017 02:58 Vinyl Chloride ND 0.013 1 03/09/2017 02:58 Surrogates REC (%) Limits 1,2-DCA-d4 84 70-130 03/09/2017 02:58 Toluene-d8 99 70-130 03/09/2017 02:58 4-BFB 99 70-130 03/09/2017 02:58 (Cont.) Angela Rydelius, Lab Manager Page 5 of 17 McCampbell Analytical, Inc. "When Quality Counts" 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] Analytical Report Client: Date Received: Date Prepared: Project: Stellar Environmental Solutions 3/7/17 16:15 3/9/17 Tower Cleaners Berkeley, CA WorkOrder: Extraction Method: Analytical Method: Unit: 1703338 TO15 TO15 µg/m³ Volatile Organic Compounds Client ID C3 Initial Pressure (psia) 14.22 Analytes Carbon Tetrachloride Lab ID Matrix Date Collected Instrument 1703338-003A Indoor Air 03/07/2017 16:24 GC24 Batch ID 135311 Final Pressure (psia) Analyst(s) 14.22 AK Result 0.14 RL DF Date Analyzed 0.0064 1 03/09/2017 03:53 1,1-Dichloroethene ND 0.10 1 03/09/2017 03:53 cis-1,2-Dichloroethene ND 0.40 1 03/09/2017 03:53 trans-1,2-Dichloroethene ND 0.40 1 03/09/2017 03:53 Methylene chloride 1.4 0.88 1 03/09/2017 03:53 Tetrachloroethene 4.8 0.069 1 03/09/2017 03:53 0.55 1 03/09/2017 03:53 1,1,1-Trichloroethane Trichloroethene ND 0.027 1 03/09/2017 03:53 Vinyl Chloride ND 0.013 1 03/09/2017 03:53 Surrogates REC (%) Limits 1,2-DCA-d4 81 70-130 03/09/2017 03:53 Toluene-d8 99 70-130 03/09/2017 03:53 4-BFB 99 70-130 03/09/2017 03:53 0.051 (Cont.) Angela Rydelius, Lab Manager Page 6 of 17 McCampbell Analytical, Inc. "When Quality Counts" 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] Analytical Report Client: Date Received: Date Prepared: Project: Stellar Environmental Solutions 3/7/17 16:15 3/9/17 Tower Cleaners Berkeley, CA WorkOrder: Extraction Method: Analytical Method: Unit: 1703338 TO15 TO15 µg/m³ Volatile Organic Compounds Client ID A1 Initial Pressure (psia) 14.16 Analytes Carbon Tetrachloride Lab ID Matrix Date Collected Instrument 1703338-004A Indoor Air 03/07/2017 08:30 GC24 Batch ID 135311 Final Pressure (psia) Analyst(s) 14.16 AK Result 0.090 RL DF Date Analyzed 0.0064 1 03/09/2017 04:47 1,1-Dichloroethene ND 0.10 1 03/09/2017 04:47 cis-1,2-Dichloroethene ND 0.40 1 03/09/2017 04:47 trans-1,2-Dichloroethene ND 0.40 1 03/09/2017 04:47 Methylene chloride 1.3 0.88 1 03/09/2017 04:47 Tetrachloroethene 0.80 0.069 1 03/09/2017 04:47 1,1,1-Trichloroethane ND 0.55 1 03/09/2017 04:47 Trichloroethene ND 0.027 1 03/09/2017 04:47 Vinyl Chloride ND 0.013 1 03/09/2017 04:47 Surrogates REC (%) Limits 1,2-DCA-d4 83 70-130 03/09/2017 04:47 Toluene-d8 99 70-130 03/09/2017 04:47 4-BFB 108 70-130 03/09/2017 04:47 (Cont.) Angela Rydelius, Lab Manager Page 7 of 17 McCampbell Analytical, Inc. "When Quality Counts" 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] Analytical Report Client: Date Received: Date Prepared: Project: Stellar Environmental Solutions 3/7/17 16:15 3/9/17 Tower Cleaners Berkeley, CA WorkOrder: Extraction Method: Analytical Method: Unit: 1703338 TO15 TO15 µg/m³ Volatile Organic Compounds Client ID A2 Initial Pressure (psia) 15.20 Analytes Carbon Tetrachloride Lab ID Matrix Date Collected Instrument 1703338-005A Indoor Air 03/07/2017 08:35 GC24 Batch ID 135311 Final Pressure (psia) Analyst(s) 15.20 AK Result 0.23 RL DF Date Analyzed 0.0064 1 03/09/2017 05:41 1,1-Dichloroethene ND 0.10 1 03/09/2017 05:41 cis-1,2-Dichloroethene ND 0.40 1 03/09/2017 05:41 trans-1,2-Dichloroethene ND 0.40 1 03/09/2017 05:41 Methylene chloride 1.0 0.88 1 03/09/2017 05:41 Tetrachloroethene 62 0.069 1 03/09/2017 05:41 1.1 0.55 1 03/09/2017 05:41 0.38 1,1,1-Trichloroethane Trichloroethene 0.027 1 03/09/2017 05:41 Vinyl Chloride ND 0.013 1 03/09/2017 05:41 Surrogates REC (%) Limits 1,2-DCA-d4 82 70-130 03/09/2017 05:41 Toluene-d8 99 70-130 03/09/2017 05:41 4-BFB 100 70-130 03/09/2017 05:41 (Cont.) Angela Rydelius, Lab Manager Page 8 of 17 McCampbell Analytical, Inc. "When Quality Counts" 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] Analytical Report Client: Date Received: Date Prepared: Project: Stellar Environmental Solutions 3/7/17 16:15 3/9/17 Tower Cleaners Berkeley, CA WorkOrder: Extraction Method: Analytical Method: Unit: 1703338 TO15 TO15 µg/m³ Volatile Organic Compounds Client ID A3 Initial Pressure (psia) 14.51 Analytes Carbon Tetrachloride Lab ID Matrix Date Collected Instrument 1703338-006A Indoor Air 03/07/2017 08:45 GC24 Batch ID 135311 Final Pressure (psia) Analyst(s) 14.51 AK Result 0.16 RL DF Date Analyzed 0.0064 1 03/09/2017 06:35 1,1-Dichloroethene ND 0.10 1 03/09/2017 06:35 cis-1,2-Dichloroethene ND 0.40 1 03/09/2017 06:35 trans-1,2-Dichloroethene ND 0.40 1 03/09/2017 06:35 Methylene chloride 1.8 0.88 1 03/09/2017 06:35 Tetrachloroethene 93 0.069 1 03/09/2017 06:35 0.88 0.55 1 03/09/2017 06:35 0.49 1,1,1-Trichloroethane Trichloroethene 0.027 1 03/09/2017 06:35 Vinyl Chloride ND 0.013 1 03/09/2017 06:35 Surrogates REC (%) Limits 1,2-DCA-d4 81 70-130 03/09/2017 06:35 Toluene-d8 101 70-130 03/09/2017 06:35 4-BFB 99 70-130 03/09/2017 06:35 (Cont.) Angela Rydelius, Lab Manager Page 9 of 17 McCampbell Analytical, Inc. "When Quality Counts" 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] Analytical Report Client: Date Received: Date Prepared: Project: Stellar Environmental Solutions 3/7/17 16:15 3/9/17 Tower Cleaners Berkeley, CA WorkOrder: Extraction Method: Analytical Method: Unit: 1703338 TO15 TO15 µg/m³ Volatile Organic Compounds Client ID A4 Initial Pressure (psia) 14.51 Analytes Carbon Tetrachloride Lab ID Matrix Date Collected Instrument 1703338-007A Indoor Air 03/07/2017 08:50 GC24 Batch ID 135311 Final Pressure (psia) Analyst(s) 14.51 AK Result 0.12 RL DF Date Analyzed 0.0064 1 03/09/2017 01:08 1,1-Dichloroethene ND 0.10 1 03/09/2017 01:08 cis-1,2-Dichloroethene ND 0.40 1 03/09/2017 01:08 trans-1,2-Dichloroethene ND 0.40 1 03/09/2017 01:08 Methylene chloride 1.0 0.88 1 03/09/2017 01:08 Tetrachloroethene 44 0.069 1 03/09/2017 01:08 0.55 1 03/09/2017 01:08 1,1,1-Trichloroethane Trichloroethene ND 0.027 1 03/09/2017 01:08 Vinyl Chloride ND 0.013 1 03/09/2017 01:08 Surrogates REC (%) Limits 1,2-DCA-d4 84 70-130 03/09/2017 01:08 Toluene-d8 99 70-130 03/09/2017 01:08 4-BFB 99 70-130 03/09/2017 01:08 0.40 Angela Rydelius, Lab Manager Page 10 of 17 McCampbell Analytical, Inc. "When Quality Counts" 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] Quality Control Report Client: Date Prepared: Date Analyzed: Instrument: Matrix: Project: Stellar Environmental Solutions 3/8/17 3/8/17 GC24 Indoor Air Tower Cleaners Berkeley, CA WorkOrder: BatchID: Extraction Method: Analytical Method: Unit: Sample ID: 1703338 135311 TO15 TO15 µg/m³ MB/LCS-135311 QC Summary Report for TO15 Analyte MB Result LCS Result RL SPK Val MB SS %REC LCS %REC LCS Limits Acetone ND 11.3 6.0 12 - 94 60-140 Acrolein ND 11.0 0.58 11.65 - 94 60-140 Acrylonitrile tert-Amyl methyl ether (TAME) Benzene Benzyl chloride Bromodichloromethane Bromoform Bromomethane 1,3-Butadiene 2-Butanone (MEK) t-Butyl alcohol (TBA) Carbon Disulfide Carbon Tetrachloride Chlorobenzene Chloroethane Chloroform Chloromethane Cyclohexane Dibromochloromethane 1,2-Dibromo-3-chloropropane 1,2-Dibromoethane (EDB) 1,2-Dichlorobenzene 1,3-Dichlorobenzene 1,4-Dichlorobenzene Dichlorodifluoromethane 1,1-Dichloroethane 1,2-Dichloroethane (1,2-DCA) 1,1-Dichloroethene cis-1,2-Dichloroethene trans-1,2-Dichloroethene 1,2-Dichloropropane cis-1,3-Dichloropropene trans-1,3-Dichloropropene 1,2-Dichloro-1,1,2,2-tetrafluoroethane Diisopropyl ether (DIPE) 1,4-Dioxane ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 12.2 23.9 18.9 30.0 43.2 70.8 26.8 14.2 16.1 15.4 16.9 44.8 27.0 14.4 25.3 11.3 17.8 59.7 57.4 47.2 37.5 37.6 37.4 25.8 23.8 18.3 19.4 21.4 21.8 26.3 28.3 27.6 37.8 22.4 23.1 0.22 0.42 0.032 0.53 0.0070 1.1 0.39 0.22 7.5 6.2 0.32 0.0064 0.47 0.27 0.025 0.21 1.8 0.87 0.050 0.0078 0.61 0.61 0.030 0.50 0.41 0.0041 0.10 0.40 0.40 0.0047 0.12 0.12 0.71 0.42 0.018 11 21 16 26.5 35 52.5 19.5 11 15 15.5 16 32 23.5 13.5 24.5 10.5 17.5 43.5 49 39 30.5 30.5 30.5 25 20.5 20.5 20 20 20 23.5 23 23 35.5 21 18.5 - 111 114 118 113 123 135 138 129 107 100 106 140 115 107 103 107 102 137 117 121 123 123 123 103 116 89 97 107 109 112 123 120 107 107 125 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 (Cont.) QA/QC Officer Page 11 of 17 McCampbell Analytical, Inc. "When Quality Counts" 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] Quality Control Report Client: Date Prepared: Date Analyzed: Instrument: Matrix: Project: Stellar Environmental Solutions 3/8/17 3/8/17 GC24 Indoor Air Tower Cleaners Berkeley, CA WorkOrder: BatchID: Extraction Method: Analytical Method: Unit: Sample ID: 1703338 135311 TO15 TO15 µg/m³ MB/LCS-135311 QC Summary Report for TO15 Analyte MB Result LCS Result RL SPK Val MB SS %REC LCS %REC LCS Limits Ethyl acetate ND 19.4 0.92 18.5 - 105 60-140 Ethyl tert-butyl ether (ETBE) ND 21.9 0.42 21 - 104 60-140 Ethylbenzene 4-Ethyltoluene Freon 113 Heptane Hexachlorobutadiene Hexane 2-Hexanone 4-Methyl-2-pentanone (MIBK) Methyl-t-butyl ether (MTBE) Methylene chloride Methyl methacrylate Naphthalene Propene Styrene 1,1,1,2-Tetrachloroethane 1,1,2,2-Tetrachloroethane Tetrachloroethene Tetrahydrofuran Toluene 1,2,4-Trichlorobenzene 1,1,1-Trichloroethane 1,1,2-Trichloroethane Trichloroethene Trichlorofluoromethane 1,2,4-Trimethylbenzene 1,3,5-Trimethylbenzene Vinyl Acetate Vinyl Chloride Xylenes, Total ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 25.7 30.8 42.8 23.1 67.4 19.2 21.6 22.8 19.6 17.2 24.9 57.0 ND 27.0 45.4 44.1 39.5 13.8 21.7 46.0 31.9 31.5 31.0 32.0 30.9 29.9 21.6 18.6 80.7 0.44 0.50 0.78 2.1 1.1 1.8 0.42 0.42 0.37 0.88 0.42 0.050 8.8 0.43 0.0070 0.0070 0.069 0.60 0.38 0.75 0.55 0.0055 0.027 0.57 0.50 0.50 1.8 0.013 1.3 22 25 39 21 54 18 21 21 18.5 17.5 20.8 53 8.5 21.5 35 35 34.5 15 19 37.5 27.5 27.5 27.5 28.5 25 25 18 13 66 - 117 123 110 110 125 106 103 108 106 98 120 107 95 125 130 126 114 92 114 123 116 115 113 112 123 119 120 143, F2 122 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 60-140 1,2-DCA-d4 86.65 85.4 100 87 85 70-130 Toluene-d8 98.8 101 100 99 101 70-130 4-BFB 95.55 99.0 100 96 99 70-130 Surrogate Recovery QA/QC Officer Page 12 of 17 CHAIN-OF-CUSTODY RECORD McCampbell Analytical, Inc. 1534 Willow Pass Rd Pittsburg, CA 94565-1701 (925) 252-9262 WorkOrder: 1703338 WaterTrax WriteOn EDF Excel Report to: 510-644-3123 Lab ID [email protected]; r EQuIS Email HardCopy Accounts Payable Stellar Enviormental Solutions 2198 Sixth St. #201 Berkeley, CA 94710 [email protected] cc/3rd Party: PO: 2017-09 ProjectNo: Tower Cleaners Berkeley, CA FAX: 510-644-3859 1 Client ID Matrix Collection Date Hold 1703338-001 C1 Indoor Air 3/6/2017 16:26 A 1703338-002 C2 Indoor Air 3/7/2017 16:26 A 1703338-003 C3 Indoor Air 3/7/2017 16:24 A 1703338-004 A1 Indoor Air 3/7/2017 08:30 A 1703338-005 1703338-006 1703338-007 A2 A3 A4 Indoor Air Indoor Air Indoor Air 3/7/2017 08:35 3/7/2017 08:45 3/7/2017 08:50 A A A 2 3 1 of 1 ClientCode: SESB Bill to: Email: Henry Pietropaoli Stellar Environmental Solutions 2198 Sixth St. #201 Berkeley, CA 94710 Page 4 ThirdParty J-flag Requested TAT: 5 days; Date Received: 03/07/2017 Date Logged: 03/07/2017 Requested Tests (See legend below) 5 6 7 8 9 10 11 12 Test Legend: 1 2 3 4 5 6 7 8 9 10 11 12 TO15_SCAN-SIM_Indoor(ug/m3) Prepared by: Jena Alfaro The following SampIDs: 001A, 002A, 003A, 004A, 005A, 006A, 007A contain testgroup TO15_INDOOR. Comments: NOTE: Soil samples are discarded 60 days after results are reported unless other arrangements are made (Water samples are 30 days). Hazardous samples will be returned to client or disposed of at client expense. Page 13 of 17 McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" WORK ORDER SUMMARY STELLAR ENVIRONMENTAL SOLUTIONS Client Name: Client Contact: Henry Pietropaoli Contact's Email: [email protected]; [email protected];sbittman@stellarWaterTrax Lab ID Client ID Matrix 1703338-001A C1 Indoor Air 1703338-002A C2 1703338-003A 1703338-004A WriteOn Tower Cleaners Berkeley, CA Project: Work Order: 1703338 QC Level: LEVEL 2 Date Logged: 3/7/2017 Comments: EDF Test Name Excel Fax Email HardCopy ThirdParty DeCollection Date chlorinated & Time J-flag Containers /Composites Bottle & Preservative TAT TO15 for Indoor Air (Scan-SIM) 1 6L Summa 3/6/2017 16:26 5 days Indoor Air TO15 for Indoor Air (Scan-SIM) 1 6L Summa 3/7/2017 16:26 5 days C3 Indoor Air TO15 for Indoor Air (Scan-SIM) 1 6L Summa 3/7/2017 16:24 5 days A1 Indoor Air TO15 for Indoor Air (Scan-SIM) 1 6L Summa 3/7/2017 8:30 5 days 1703338-005A A2 Indoor Air TO15 for Indoor Air (Scan-SIM) 1 6L Summa 3/7/2017 8:35 5 days 1703338-006A A3 Indoor Air TO15 for Indoor Air (Scan-SIM) 1 6L Summa 3/7/2017 8:45 5 days 1703338-007A A4 Indoor Air TO15 for Indoor Air (Scan-SIM) 1 6L Summa 3/7/2017 8:50 5 days Sediment Hold SubOut Content NOTES: - STLC and TCLP extractions require 2 days to complete; therefore, all TATs begin after the extraction is completed (i.e., One-day TAT yields results in 3 days from sample submission). - MAI assumes that all material present in the provided sampling container is considered part of the sample - MAI does not exclude any material from the sample prior to sample preparation unless requested in writing by the client. Page 1 of 1 Page 14 of 17 Page 15 of 17 Page 16 of 17 McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Sample Receipt Checklist Client Name: Stellar Environmental Solutions Date and Time Received 3/7/2017 16:15 Project Name: Tower Cleaners Berkeley, CA Date Logged: 3/7/2017 Received by: Jena Alfaro Logged by: Jena Alfaro WorkOrder №: 1703338 Carrier: Bernie Cummins (MAI Courier) Matrix: Indoor Air Chain of Custody (COC) Information Chain of custody present? Yes No Chain of custody signed when relinquished and received? Yes No Chain of custody agrees with sample labels? Yes No Sample IDs noted by Client on COC? Yes No Date and Time of collection noted by Client on COC? Yes No Sampler's name noted on COC? Yes No Sample Receipt Information Custody seals intact on shipping container/cooler? Yes No Shipping container/cooler in good condition? Yes No Samples in proper containers/bottles? Yes No Sample containers intact? Yes No Sufficient sample volume for indicated test? Yes No NA Sample Preservation and Hold Time (HT) Information All samples received within holding time? Yes No Temp: Sample/Temp Blank temperature NA NA Water - VOA vials have zero headspace / no bubbles? Yes No NA Sample labels checked for correct preservation? Yes No pH acceptable upon receipt (Metal: <2; 522: <4; 218.7: >8)? Yes No Samples Received on Ice? Yes No Yes No NA Free Chlorine tested and acceptable upon receipt for EPA 218.7, Yes 300.1, 537, 539? No NA NA UCMR3 Samples: Total Chlorine tested and acceptable upon receipt for EPA 522? Comments: Page 17 of 17 ATTACHMENT E Model comparisons, general information and more detailed specification for the Rabbit Air® model Minus A2-SPA700A Ultra Quiet Air Puriﬁer Hello! Owner’s manual Models: SPA-700A SPA-780A 24/7 customer care For Questions: Call 888.866.8862 Visit us at www.rabbitair.com General Safety Information About Your MinusA2 Air Puriﬁer Hello there! Caution: When using electrical appliances, observe the following basic precautions to reduce the risk of ﬁre, electric shock, and injury: “ • Please read all tips and warnings before using your Rabbit Air® puriﬁer. Meet your brand new MinusA2®! We hope that this stylish bundle of cleanliness is just what you've been looking for. Be sure to get familiar with this newest addition to your home, by exploring all of its features in the enclosed booklet and on our website. If you have any questions just give us a call, anytime. We love to hear from you! ” • Use only as directed by the Owner’s Manual. • Please observe extreme caution when using the air puriﬁer in close proximity to children. • Rabbit Air puriﬁers are for indoor use only. • The Rabbit Air puriﬁer is not intended for use in bathrooms, laundry areas, or other damp indoor environments. Keep the Rabbit Air puriﬁer away from water at all times. • Do not use the Rabbit Air puriﬁer near ﬁreplaces or in areas where ﬂammable or combustible products or vapors may be present. • This appliance has a polarized plug (one blade is wider than the other) . To reduce the risk of electric shock, this plug is intended to ﬁt in a polarized outlet only one way. If the plug does not ﬁt fully in the outlet, reverse the plug. If it still does not ﬁt, contact a qualiﬁed electrician. Do not attempt to defeat this safety feature. • This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. • Children should be supervised to ensure they do not play with the appliance. • This product complies with the maximum allowable concentration of ozone of 0.050 parts per million by volume (ppmv) in a 24-hour period. The Health Canada Guideline 2010 recommends that the Maximum exposure limit, based on an averaging time of 8 hours, is 0.020 ppmv or less when tested in a Sealed, controlled room approximately 30 m³. 1 A childproof feature pauses air puriﬁer operation when the front panel is removed. 2 Electrical Safety Instructions • The Rabbit Air puriﬁer is designed for use in a 110/120V outlet only. • Turn oﬀ your Rabbit Air puriﬁer before unplugging it from the power outlet. • Unplug the Rabbit Air puriﬁer from the power outlet when not in use and before servicing or cleaning the unit. • To reduce the risk of electric shock, the Rabbit Air puriﬁer has a polarized plug, which means it will ﬁt into a polarized outlet only one way. If the plug does not ﬁt into the outlet, reverse the plug. If it still does not ﬁt, contact qualiﬁed personnel to install the proper outlet. Do not alter the plug in any way. • To avoid electric shock, do not touch the air puriﬁer or its power plug with wet hands. • Keep the electrical cord away from heated surfaces at all times. • If the cord or plug appears damaged, return the unit immediately to an authorized service facility for examination and repair. Operation Guidelines • Do not block the air intake or air outlet. • Do not use the Rabbit Air puriﬁer on or around hot surfaces. • Do not use the Rabbit Air puriﬁer in a room where it may come into contact with steam. • Do not operate the Rabbit Air puriﬁer on its side. • Do not install the Rabbit Air puriﬁer in greasy or damp environments. • Do not use detergent or soap to clean the Rabbit Air puriﬁer. • Do not operate the Rabbit Air puriﬁer without ﬁlters. • Do not wash and reuse the ﬁlters except for the washable Pre-Filter. • When transporting the Rabbit Air puriﬁer, always hold the handle on the back of the unit. • Any attempts to repair the Rabbit Air puriﬁer without written permission from Rabbit Air will void the warranty and could cause serious personal injury to the user and/or result in severe damage to the unit. • Do not pull, carry, lift, or drag the Rabbit Air puriﬁer by pulling its power cord. Remove the power plug from its outlet by grasping the plug and pulling gently. • When the Rabbit Air puriﬁer is plugged into a power outlet, keep all ﬁngers, body parts, hair, jewelry, and loose clothing away from the openings. Installation Guidelines Remote Control Tips • Inverter lighting equipment or electronic light ﬁxtures may interfere with remote control signals. • Avoid storing the remote control in direct sunlight. Heat may interfere with remote control signals. The Energy Star label and disclaimer: • Avoid putting the Rabbit Air puriﬁer in a place where the air intake or air outlet could become clogged with dirt. • Leave at least two feet of space between the air puriﬁer’s intake, outlet, and the wall. 3 The energy eﬃciency of this ENERGY STAR qualiﬁed model is measured based on a ratio between the model’s CADR for dust and the electrical energy it consumes, or CADR/Watt. 4 Meet your MinusA2 Back view Handle Front view Mood Light Power Cord Bracket Holder Air Outlet Air Intake (Around all sides of front panel) Control Panel/ Display Panel Remote control Particle Sensor Power Speed Light Sensor Air Quality Indicator Mode Mood Light Odor Sensor Battery (AAA size) 5 6 Control Panel Indicator Lights Turbo High Medium Low Silent Replace Filters Pollen Auto Filter Reset MOOD LIGHT Ion Ion on/off Sleep Light Sensor Air Quality Indicator Auto Mode Indicator Fan Speed Indicator Turbo High Medium Low Silent Power Press and hold the power button for two seconds to turn the unit on or oﬀ. Speed Replace Filters Pollen MODE Auto Filter Reset There are ﬁve speeds. Operation speed changes in the following order as you press the speed button. Silent > Low > Medium > High > Turbo Turbo High Medium Ion Silent Pollen Sleep Light Sensor Air Quality Indicator Odor Sensor Mood Light and Negative Ion Generator This dual control button, when pressed brieﬂy, will turn the Mood Light on or oﬀ. When pressed and held, the Negative Ion Generator will turn on or oﬀ. When Pollen Mode is selected, the fan speed of the air puriﬁer changes automatically depending on the readings of the air quality sensors. The Mood Light shifts color in the following pattern: blue > purple > light purple > pink . Ion When this indicator lights up, it is time to replace your ﬁlters. Once the ﬁlters are replaced, press and hold the Mode/Filter Reset button to reset the Replace Filters Indicator. Mood Light This indicates that the Negative Ion Generator is operating. Sleep Mode Indicator Sleep Filter Replacement Indicator Replace Filters When Auto Mode is selected, the fan speed of the air puriﬁer changes automatically depending on the readings of the air quality sensors and light sensor. The Mood Light is solid blue when the unit is in Auto Mode. Ion Indicator Pollen Mode Indicator Mode and Filter Reset This is a dual control button. When pressed brieﬂy, you can change the mode of operation between Auto Mode and Pollen Mode. When pressed and held, the Replace Filters Indicator will be reset. Auto Low MOOD LIGHT Ion on/off Indicates the fan speed of the air puriﬁer. The lowest speed is Silent. The highest speed is Turbo. This indicates that the unit is operating in Sleep Mode. Air Quality Indicator Air Quality Indicator This light indicates the current air quality in the room. The colors will shift from blue > purple > light purple > red, depending on the amount of contaminants. Blue represents good air quality, while red represents poor air quality. The Mood Light has four colors: blue, purple, light purple and pink. 7 8 Let’s Begin - Initial Set Up Meet the Filters The MinusA2 Air Puriﬁer is designed for residential use only. To maintain the quality of the ﬁlters, they are packaged in plastic. Please remove the ﬁlters from the plastic wrapping before using the unit. Your customized ﬁlter will be packaged in plastic outside of the unit. Set the ﬁlter aside for later installation (step 6). BioGS™ HEPA Filter Medium Filter 1. Remove the front panel by lifting from the bottom and pulling up. Customized Filter 2. Remove the ﬁlter case by grasping the handles on both sides and pulling forward. Lay the ﬁlter case on a ﬂat surface. 3. Pull the tabs on the front of the Pre-Filter to remove it. Charcoal Based Activated Carbon Filter Pre-Filter tabs Pre-Filter 4. Remove the white Medium Filter from the black frame to discard the plastic wrapping. Return the ﬁlter to its frame. OD OR Filter case SEN SO R 5. Remove HEPA Filter and discard plastic wrapping. Front panel 9 10 7. Pull out the Activated Carbon Filter and discard plastic wrapping. Finishing up! 8. Return the ﬁlters to the ﬁlter case in the following order from back to front: Activated Carbon Filter, Customized Filter, BioGS HEPA Filter, Medium Filter, Pre-Filter. (See diagram on page 9). 6. Remove the empty Customized Filter frame from the case. Locate the Customized Filter set aside from earlier and remove it from its plastic wrapping. Insert the ﬁlter into its frame. Make sure the front of the ﬁlter is facing up. See Customized Filter chart, below, to identify the front of your ﬁlter. 9. Return ﬁlter case to the unit. Slide the bottom of the case back into the unit (1), then press the top in (2). Know your Customized Filter! 10. Reattach the front panel by latching the top hooks, then securing the bottom of the panel. REPL FILTE ACE RS Filte Res r et Front Back Ion on/off ION Toxin Absorber Customized Filter: Front color: Purple Back color: Black OD OR SENS OR Pet Allergy Customized Filter: Front color: Purple & Orange Back color: Orange Germ Defense Customized Filter: Front color: Purple & Yellow Back color: Yellow Odor Remover Customized Filter: Front color: Black (coated material) Back color: Black 11 12 Mode Selection Operation Modes Plug the unit into a 120V outlet. Auto Mode Plug the unit into a 120V outlet. Pollen After turning on the unit, brieﬂy press the Mode/Filter Reset button to select your desired mode of operation, Pollen or Auto. Press the power button. The air puriﬁer will start up automatically in Auto Mode. The Mood Light will be a solid blue. The color of the Air Quality Indicator changes based on the amount of impurities in the air, and the fan speed adjusts accordingly. (Pollen Mode or Auto Mode) Auto Ion When turned oﬀ and reactivated, the unit will start up in the same mode of operation it was last in. Air Quality Indicator Sleep Mode will activate if the room is dark for 3 minutes. Pollen Mode Pollen Auto Filter Reset Plug the unit into a 120V outlet. Press the power button to activate the unit. Brieﬂy press the Mode/Filter Reset button to select Pollen Mode. In Pollen Mode, the color of the Mood Light will shift: blue > purple > light purple > pink. The color of the Air Quality Indicator changes based on the amount of impurities in the air, and the fan speed adjusts accordingly. Sleep Mode will activate if the room is dark for 3 minutes. While the Mood Light and Air Quality Indicator will switch oﬀ, the fan speed of the air puriﬁer will continue to change based on the amount of impurities in the air. Manual Speed Selection Plug the unit into a 120V outlet. Low Silent Press the power button, the air puriﬁer will start up automatically in Auto Mode. Press the Speed button to change the speed manually. Choose among ﬁve speeds, Silent, Low, Medium, High and Turbo. The Mood Light will be a solid blue. 13 Sleep Mode will activate if the room is dark for 3 minutes. Replace Filters Turbo High Medium Low Silent The Replace Filters Indicator will become illuminated when it is time to change your ﬁlters. Once you have replaced the ﬁlters, press and hold the Mode/Filter Reset button for three seconds, or until the Replace Filters Indicator clears itself. Sleep Mode Filter Reset with Light Sensor While the MinusA2 is operating, the Light Sensor will detect the brightness of the room. If the room is dark, the MinusA2 will automatically switch to the Sleep Mode after three minutes and the Sleep mode indicator will become illuminated. Light Sensor When the unit is in Sleep mode, the Mood Light and Air Quality Indicator will automatically turn oﬀ. If the unit is operating in Auto Mode, the fan speed of the air puriﬁer will automatically change to silent, minimizing energy consumption and noise. Sleep mode will not override the fan speed if the MinusA2 is operating in one of its manual speeds or Pollen Mode. MODE Pollen Auto Sleep 14 Changing the Sensitivity Level of the Sensors Mood Light Operation Mood Light not only changes colors, but it also indicates the current operation mode. Mood Light Button You can adjust the sensitivity level of the air quality sensors. The sensors come preset at a standard sensitivity level as a default. Ion Pollen Press and hold both the Speed and Mode button for three seconds. Auto Ion The color of the Mood Light corresponds to the current mode of operation. Auto Mode: Blue Pollen Mode: The color of the Mood Light will shift: blue > purple > light purple > pink. Air Quality Indicator The Air Quality Indicator and Auto Mode Indicator will blink. Negative Ion Generator High Press the Speed button to choose the sensitivity level. Replace Filters : Low sensitivity Pollen Mode : Standard sensitivity Auto Mode : High sensitivity The Mood Light turns on automatically when the air puriﬁer is turned on. Brieﬂy press the Mood Light button to turn the Mood Light on and oﬀ, or use the remote. Medium Low Press and hold the Mood Light & Ion on/oﬀ button for three seconds. The Negative Ion Generator will switch on or oﬀ. The Ion Indicator Light will become illuminated when the generator is on. MOOD LIGHT Ion on/off Replace Filters Replace Filters Pollen Pollen Auto Auto Filter Press and hold the Speed and Mode buttons for three seconds to save the sensitivity level. If no action is taken for ten seconds, the sensitivity level you last selected is saved automatically. Pollen Auto MOOD LIGHT Ion 15 16 Cleaning the Unit Surface Cleaning and Maintenance Always unplug the unit before cleaning. outlet air inlet The unit surface should be cleaned depending on the air quality of the room. Cleaning the Particle Sensor Clean particle sensor every three to six months. Clean the air inlet and outlet using a vacuum cleaner or soft brush. 1. Use a clean, dry cloth to wipe the external surfaces of the air puriﬁer. dust outlet 1. Open the particle sensor cover on the right side of the unit (when facing the unit). 2. Use a damp cotton swab to clean and dry the lens, dust inlet and dust outlet. Use a damp cloth to remove stubborn stains and dirty buildup if necessary. Avoid commercial cleaning products which may damage the unit's surface. Cleaning the Pre-ﬁlter dust inlet Cleaning the Air Intake and Outlet 1. Clean the air intake and outlet with a soft brush. Caution: Be careful not to drop the brush into the unit. Cleaning the Front Panel 1. Remove the front panel from the unit and use a dry cloth or soft brush to dust it oﬀ. Use a damp cloth to remove stubborn stains and dirty buildup if necessary. Avoid commercial cleaning products. Cleaning the Mood Light Lens 1. Remove the front panel from the unit and use a dry cloth, soft brush, or cotton swab to dust oﬀ the Mood Light lens on the back of the panel. The Pre-Filter should be cleaned depending on the air quality of the room. • To clean the Pre-Filter - vacuum method: 1. Remove front panel from the air puriﬁer. 2. Run a vacuum cleaner with a nozzle or brush attachment on low power setting along the Pre-Filter to remove visible particles. If vacuuming does not seem to suﬃciently clean your Pre-Filter, please follow the steps below to wash it. • To clean the Pre-Filter - washing method: 1. Remove the Pre-Filter from the unit. 2. Fill the sink with lukewarm water and gently wash the Pre-Filter under the water for 2-3 minutes or until it is completely clean. 3. Rinse the Pre-Filter with clean tap water. 4. Use a towel to remove any excess water from the Pre-Filter. 5. Allow the Pre-Filter to dry for 12-24 hours. 6. When the Pre-Filter is completely dry, place back into the air puriﬁer. Use a damp cloth to remove stubborn stains and dirty buildup if necessary. Avoid commercial cleaning products. 17 18 Filter Cleaning and Replacement Schedule* Replacing the BioGS HEPA Filter every 12 months Discard the old HEPA Filter, do not reuse. Filters Filter Life Cleaning Pre-Filter Washable Every Month Medium Every 12 Months Not Required BioGS HEPA Every 12 Months Not Required Customized Every 12 Months Not Required Charcoal-based Activated Carbon Every 12 Months Not Required *Based on 24/7 operation Replacing your Filters Always unplug the unit before cleaning/replacing the ﬁlters. Depending on the amount of pollutants in your indoor environment, the life span of the ﬁlters will vary. 1. Remove old HEPA Filter and discard. 2. Remove new ﬁlter from plastic wrapping. 3. Place new HEPA Filter in ﬁlter case. Replacing the Customized Filter every 12 months Do NOT discard the ﬁlter holder. Discard the old Customized Filter, do not reuse. 1. Remove the old Customized Filter from the black frame and discard expired ﬁlter. 2. Take the new Customized Filter out of the plastic wrapping and place in the black frame. 3. Make sure the front of the Customized Filter is facing up. See Customized Filter chart, (page 11) , to identify the front of your speciﬁc ﬁlter. Pre-ﬁlter Do NOT discard the Pre-Filter. It is designed to be cleaned and reused. The Pre-Filter does not need to be replaced. 1. Pull the tabs on the front of the Pre-Filter to remove it. 2. Put the Pre-Filter to one side while replacing the other ﬁlters. Replacing the Activated Carbon Filter every 12 months Discard the old Activated Carbon Filter, do not reuse. 1. Pull out the old Activated Carbon Filter and discard. 2. Remove the new Activated Carbon Filter from its plastic wrapping, and place in the ﬁlter case. Replacing the Medium Filter every 12 months Do NOT discard the ﬁlter frame. Discard the old Medium Filter, do not reuse. 1. Remove the old Medium Filter from the black frame and discard the expired ﬁlter. 2. Open new Medium Filter and discard the plastic wrapping. 3. Secure the new ﬁlter in the black frame. 19 Return the ﬁlters to the ﬁlter case in the following order from back to front: -Activated Carbon Filter, -Customized Filter, -BioGS HEPA Filter, -Medium Filter, -Pre-Filter. (See diagram on page 9). 20 Wall-Mounting your MinusA2 (Optional) Only use the approved Rabbit Air wall-mount kit to install the MinusA2 Air Puriﬁer on your wall. The MinusA2 Air Puriﬁer is designed to be either free standing or wall-mounted. Wall-mount installation guidelines: • Make sure the MinusA2 Air Puriﬁer has at least two feet of clearance from the ceiling and eight inches of clearance on either side. • Be careful not to drop the front panel or ﬁlter case when replacing the ﬁlters. • Do not pull on the power cord. • Make sure the hanger screws have been securely driven into studs. Don’t have a wall-mount kit? Want one? Order online at www.rabbitair.com or over the phone at 888.866.8862 Disclaimer for installing wall-mounted objects Do not attempt to install this product if you do not understand the instructions. Contact a qualiﬁed contractor to install the mounting bracket and call 1-888-866-8862 if you have any questions. You risk the possibility of damaging the Air Puriﬁer, damaging other property and personal injury if the mounting bracket is not installed properly. Check to make sure there are no missing or defective parts. Do not attempt to install the mounting bracket if there are missing or defective parts. Contact Rabbit Air and replacement parts will be shipped to you immediately. Rabbit Air is not liable for damage or injury caused by incorrect mounting, incorrect assembly or incorrect usage. • After installing the wall-mount bracket, make sure it is ﬁrmly in place before putting the MinusA2 Air Puriﬁer on it. • Take care not to drill or screw into existing wiring in the wall while installing the wall-mount bracket. Correct installation is extremely essential, and falls outside the scope of responsibility of Rabbit Air. Please consult a qualiﬁed contractor and/or specialist supplier to install the mounting bracket. Maximum weight of air 21 puriﬁer SPA-780A / SPA-700A: 8.8 kg/ 19.4 lbs. 22 Troubleshooting Guide Symptom Suggestions Unit will not turn on. • The power plug may be loose. Press the power button on the unit, or the power button on the remote. • Make sure the front panel is securely attached to the main unit. The top hooks on the front panel must be latched on the hinges of the main unit. The remote control does not work. • Battery could be dead or depleted. • Remote might not be pointed directly at the unit. • Make sure the battery is correctly installed. The unit is not eﬀective. • Filters may be heavily soiled and due for cleaning or replacement (see page 19-20). • Filters may not have been removed from original packaging (see page 10-12). Unit operates at a constant speed in Auto Mode. 23 Below we’ve provided you with a troubleshooting guide for your MinusA2 air puriﬁer. You are welcome to call us anytime with questions or concerns at 888.866.8862 -The Rabbit Air team Symptom Suggestions The unit does not respond to smoke or pollution. or The sensors are too sensitive / not sensitive enough. • Check to be sure Odor and Particle sensors are completely clean. • Adjust the sensor sensitivity (see page 15). The Replace Filters Indicator remains illuminated, even after I replaced the ﬁlter. • With the power on, press and hold the ﬁlter reset button for three seconds, or until the “Replace Filters” indicator clears itself (see page 14). The fan is noisy. • Make sure the unit is placed on a level surface. • Filters may not have been removed from their original packaging (see page 10-12). • Make sure no foreign objects have fallen into the unit. • The sensors might be blocked or clogged—clean the sensors (see page 17). • Adjust the sensor sensitivity (see page 15). • If your room is dark and the unit is in Sleep Mode, it will only operate at the lowest fan speed. 24 Limited Warranty Rabbit Air warrants that your air puriﬁer (“Product”) will be free from defects in material or workmanship for a period of ﬁve (5) years from the date of purchase. To activate the warranty, please complete the warranty registration form online at www.rabbitair.com/warranty within 90 days of your air puriﬁer purchase. To ensure product performance, the ﬁlters should be replaced with authentic Rabbit Air replacement ﬁlters as recommended in this manual ('Limited Warranty'). Within the ﬁrst 90 days of purchase, Rabbit Air will replace the defective unit at no additional cost and reimburse any shipping charges. After 90 days, Rabbit Air's obligation and liability under this limited warranty is limited to repairing or replacing (at our sole discretion) the defective product. The limited warranty does not cover replacement ﬁlters. In the event of product malfunction or failure, please contact Rabbit Air to obtain a return authorization number and the address of the service center. The return authorization number must be clearly written on the outside of the shipping box or the shipment may be refused. This warranty extends only to the original purchasers who acquire new product from Rabbit Air, its subsidiaries, or its authorized resellers. Rabbit Air will have no warranty obligation with respect to the following products (“Ineligible Products”): (i) Products that have no defects in materials or workmanship; (ii) Products with defects that are not reproducible by Rabbit Air; (iii) Products marked as “sample” or sold “AS IS; or (iv) Products that have been subject to: (a) any modiﬁcations, alterations, repair, or servicing by any party other than Rabbit Air or Rabbit Air’s authorized representatives, (b) handling, storage, installation, testing, or use not in accordance with the applicable Documentation, (c) abuse, negligence, neglect, accidents, abuse or misuse, (d) any breakdowns, ﬂuctuations, or interruptions in electric power or connected to improper power supply, or (e) any Acts of God, including ﬁre, ﬂood, tornado, earthquake, hurricane, excessive snow, lightning, riot, insurrection, act of war, or other disaster. Limits and Exclusions There are no express warranties except as listed above. THE WARRANTOR SHALL NOT BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM THE USE OF THIS PRODUCT, OR ARISING OUT OF ANY BREACH OF THIS WARRANTY. ALL EXPRESS AND IMPLIED WARRANTIES, INCLUDING THE WARRANTIES OF MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED TO THE APPLICABLE WARRANTY PERIOD SET FORTH ABOVE. Some states do not allow the exclusion or limitation of incidental or consequential damages, or limitations on how long an implied warranty lasts, so the above exclusions or limitations may not apply to you. This warranty gives you speciﬁc legal rights and you may also have other rights which vary from state to state. If a problem with the product develops during the warranty period, we will repair or replace it without charge to you. A shipping fee may apply. To obtain service under warranty, please contact Rabbit Air at 1-888-866-8862 or by e-mail at [email protected] 25 “ The Rabbit Air ﬁve-year warranty is a statement of our conﬁdence in the quality of our products and an assurance that we stand behind that quality 100 percent of the time. Labor is included in our warranty; when warranty work is performed, Rabbit Air pays the bill. ” Warranty Register online at www.rabbitair.com/warranty Register your air puriﬁer online now for: • Product Protection By registering your product and purchase information, we can conﬁrm the date of purchase to secure your warranty. This conﬁrmation serves as security in the event that your original proof of purchase is lost, or in case your unit needs any servicing in the future. • Proof of Ownership Your model number, serial number, and other information will be kept in our ﬁles. Please complete and return this registration within 90 days from purchase in order to receive our 5-year limited warranty. 24/7 customer care For Questions: Call 888.866.8862 Visit us at www.rabbitair.com 26 w w w. ra bbi ta ir.co m Copyright © Rabbit Air 2016. All rights reserved MINUSA2UM1603 Request free catalog      Which Air Puri er is Best for You? Compare MinusA2 and BioGS 2.0  MinusA2 MinusA2 BioGS 2.0 BioGS 2.0 780A 700A 625A 550A Room Coverage (based on 2 air changes per hour) up to 815 sq. ft. up to 700 sq. ft. up to 625 sq. ft. up to 550 sq. ft. Dimension (inches) 20H x 21.4W x 7D 20H x 21.4W x 7D 22.2H x 16.6W x 9.8D 22.2H x 16.6W x 9.8D Warranty 5 Years 5 Years 5 Years 5 Years Price $599.95 $499.95 $399.95 $369.95 True HEPA Filtration Yes Yes Yes Yes MinusA2 MinusA2 BioGS 2.0 BioGS 2.0 780A 700A 625A 550A Air Puri…cation Stages 1 - Pre-Filter 2 - Medium Filter 3 - HEPA Filter 4Customized Filter 5 - Charcoal Filter 6 - Negative Ions 1 - Pre-Filter 2 - Medium Filter 3 - HEPA Filter 4Customized Filter 5 - Charcoal Filter 6 - Negative Ions 1 - Pre-Filter 2 - Charcoal Filter 3 - HEPA Filter 4 - Negative Ions 1 - Pre-Filter 2 - Charcoal Filter 3 - HEPA Filter 4 - Negative Ions Ozone Emissions Zero* Zero* Negligible** Negligible** CADR 208 Pollen 200 Dust 193 Smoke 201 Pollen 200 Dust 193 Smoke 189 Pollen 165 Dust 152 Smoke 162 Pollen 149 Dust 135 Smoke Air Flow (Cubic Feet per minute) Speed 1 - 58 CFM Speed 2 - 80 CFM Speed 3 112 CFM Speed 4 159 CFM Speed 5 218 CFM 1 - 47 CFM 2 - 64 CFM 3 - 97 CFM 4 - 140 CFM 5 - 187 CFM 1 - 42 CFM 2 - 66 CFM 3 - 95 CFM 4 - 137 CFM 5 - 167 CFM 1 - 42 CFM 2 - 66 CFM 3 - 78 CFM 4 - 117 CFM 5 - 147 CFM Noise Level (Decibels) Speed 1 25.6 dBA Speed 2 31.1 dBA Speed 3 37.4 dBA Speed 4 44.5 dBA Speed 5 51.3 dBA 1 - 20.8 dBA 2 - 24.6 dBA 3 - 31.3 dBA 4 - 39.2 dBA 5 - 45.6 dBA 1 - 22.8 dBA 2 - 28.6 dBA 3 - 37.2 dBA 4 - 46.7 dBA 5 - 50.4 dBA 1 - 22.8 dBA 2 - 28.6 dBA 3 - 33.5 dBA 4 - 44.3 dBA 5 - 48.6 dBA Filter Life Span 1 - 2 years 1 - 2 years 1.5 - 3 years 1.5 - 3 years MinusA2 MinusA2 BioGS 2.0 BioGS 2.0 780A 700A 625A 550A Annual Filter Replacement Cost (based on 24/7 continuous operation) $85 $85 $53.30 $53.30 Power Consumption 7 to 61 watts (Energy Star) 7 to 47 watts (Energy Star) 5 to 39 watts (Energy Star) 5 to 29 watts (Energy Star) Colors Available White Black White White White Stand Alone / Wall Mountable Stand Alone / Wall Mountable Stand Alone / Wall Mountable Stand Alone Stand Alone Ultra Quiet Yes Yes Yes Yes Particle Sensor Yes Yes Yes Yes Odor Sensor Yes Yes Yes Yes Light Sensor Yes Yes No No Remote Control Yes Yes Yes Yes Deodorization Yes Yes Yes Yes Weight 19.4 lbs. 19.4 lbs. 16.8 lbs. 16.8 lbs. *Zero ozone emission with the negative ion generator turned o−. An amount of 0.002 ppm (parts-per-million) was recorded on the low fan speed with the negative ion generator turned on. That is 25 times less than the 0.05 ppm maximum ozone concentration safety standard set forth by the California Air Resource Board. **An amount of 0.001 ppm (parts-per-million) was recorded. That is 50 times less than the 0.05 ppm maximum ozone concentration safety standard set forth by the California Air Resource Board. GET IN TOUCH  888.866.8862  Live Chat  [email protected] FOLLOW US OUT THERE     NEWSLETTER Email address Contact Us About Us Bird Air Puri er SUBSCRIBE Smoke Air Puri er Privacy Policy Term of Use My Account Testing Toxin Absorber filter’s ability to reduce Formaldehyde & Volatile Organic Compounds * RoHS Test * No. 3CT073CT07-00371 (Test (Test Institute: Korea Environment & Merchandise Institute) Institute) Test Result Test Method Pb Not detected ISO 6101-2:1997, ICP-AES Cd Not detected BS EN 1122:200(E), ICP-AES Not detected USEPA 3052:1996, ICP-AES Test Articles unit mg/kg Hg Cr6+ Not detected USEPA 3060A:1996, UV-Vis. Spectrophotometer Polybrominated Biphenyls (PBBs) Bromobiphenyl mg/kg Not detected Dibromobiphenyl Not detected Tribromobiphenyl Not detected Tetrabromobiphenyl Not detected Pentabromobiphenyl Not detected Hexabromobiphenyl Not detected Heptabromobiphenyl Not detected Octabromobiphenyl Not detected Nonabromobiphenyl Not detected Decabromobiphenyl Not detected USEPA 3540C:1996 GC-MS Poly Brominated Diphenyl Ethers (PBDEs) Bromodiphenyl ether mg/kg Not detected Dibromodiphenyl ether Not detected Tribromodiphenyl ether Not detected Tetrabromodiphenyl ether Not detected Pentabromodiphenyl ether Not detected Hexabromodiphenyl ether Not detected Heptabromodiphenyl ether Not detected Octabromodiphenyl ether Not detected Nonabromodiphenyl ether Not detected Decabromodiphenyl ether Not detected * Hepabromobiphenyl, Nonabromobiphenyl is tested by qualitative analysis. USEPA 3540C:1996 GC-MS LOUDNESS COMPARISON CHART (dBA) Common Outdoor Activities Noise Level (dBA) Jet Fly-over at 1000 ft Gas Lawn Mower at 3 ft 110 Noisy Urban Area, Daytime Gas Lawn Mower at 100 ft Commercial Area Heavy Traffic at 300 ft Quiet Urban, Daytime 80 Quiet Rural, Nighttime Food Blender at 3 ft Garbage Disposal at 3 ft Vacuum Cleaner at 10 ft 70 Normal Speech at 3 ft 60 Large Business Office 50 Quiet Urban, Nighttime Quiet Suburban, Nighttime Rock Band 100 90 Diesel Truck at 50 ft at 50 mph Common Indoor Activities 40 30 20 Dishwasher Next Room Theater, Large Conference Room (Background) Library Bedroom at Night, Concert Hall (Background) Broadcast/Recording Studio 10 Lowest Threshold of Human Hearing 0 Lowest Threshold of Human Hearing An increase of 3 dBA is barely perceptible to the human ear.

March 24, 2017 Ms. Jolanta Uchman San

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