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ACCLRP Addendum No. 1 Addendum No. 1 Alma College Cultural Landscape Rehabilitation Project To: Request for Proposal Recipients From: Lisa Bankosh Date: May 10, 2017 Re: Addendum No. 1 SITE VISIT 5/5/17 QUESTIONS AND ANSWERS 1) Q: Is the pond man made? A: Yes. It dates to the 1850’s but was likely a natural sag pond originally. 2) Q: Is the wood shed part of the project? A: Yes. It was the firehouse. It will be removed as part of the project, along with aboveground pumps, etc, associated with the fire suppression system. 3) Q: Do you have a good idea where the other oil storage tanks are? A: According to the Phase I Report (attached as exhibit 3), there may be additional storage tanks in the vicinity of the former dormitories, and the roman plunge pool. 4) Q: Is site investigation or remediation of the wells included in the cost estimate for this _ project? A: Remediation is included in the project, but the cost estimate quoted at the site walk ($7.4M) did not include removal of underground storage tanks – if present on site and requiring remediation, this may be an added cost. 5) Q: Is it possible to see the first story from the inside Chapel? A: No. 6) Q: Do you have photos of the first floor of the Chapel? A: Please see the Alma College Existing Conditions Assessment, located at: https://www.openspace.org/alma-college-rfp 7) Q: Was there ever a water study? A: The District contracted archival research by Denise Bradley in support of historic water rights investigations, as well as a study of existing/potential water resources by Balance Hydrologics, and an engineering feasibility analysis of new potable water options for Bear Creek Stables by MNS Engineers. These studies will be provided to the selected

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Page 1: Addendum No. 1 - Midpeninsula Regional Open … · Addendum No. 1 Addendum No. 1 ... Management In 1938, a sewage disposal system was installed, including a tank, trickling filter,

ACCLRP Addendum No. 1  

Addendum No. 1

Alma College Cultural Landscape Rehabilitation Project

To: Request for Proposal Recipients

From: Lisa Bankosh

Date: May 10, 2017

Re: Addendum No. 1

SITE VISIT 5/5/17

QUESTIONS AND ANSWERS

1) Q: Is the pond man made? A: Yes. It dates to the 1850’s but was likely a natural sag pond originally.

2) Q: Is the wood shed part of the project? A: Yes. It was the firehouse. It will be removed as part of the project, along with

aboveground pumps, etc, associated with the fire suppression system.

3) Q: Do you have a good idea where the other oil storage tanks are?

A: According to the Phase I Report (attached as exhibit 3), there may be additional storage tanks in the vicinity of the former dormitories, and the roman plunge pool.

4) Q: Is site investigation or remediation of the wells included in the cost estimate for this _ project? A: Remediation is included in the project, but the cost estimate quoted at the site walk

($7.4M) did not include removal of underground storage tanks – if present on site and requiring remediation, this may be an added cost.

5) Q: Is it possible to see the first story from the inside Chapel?

A: No.

6) Q: Do you have photos of the first floor of the Chapel? A: Please see the Alma College Existing Conditions Assessment, located at:

https://www.openspace.org/alma-college-rfp

7) Q: Was there ever a water study? A: The District contracted archival research by Denise Bradley in support of historic water

rights investigations, as well as a study of existing/potential water resources by Balance Hydrologics, and an engineering feasibility analysis of new potable water options for Bear Creek Stables by MNS Engineers. These studies will be provided to the selected

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ACCLRP Addendum No. 1  

design team. However, the “aqueduct” feature was not a focus of the studies and it is unlikely that any detailed information is available from these sources.

8) Q: Does documentation need to be to HABS standards?

A: No. Before demolition, a digital archive should be assembled that includes past documents as well as existing digital photographs. The digital archive would be housed at the District offices and made available to the Jesuit Archives. The digital archive would consist of the following:

1. Written History a. Page and Turnbull 2005 b. Knapp 2010

2. Drawings and Photographs a. Collect and compile digital photographs of any existing architectural drawings of the

buildings to be demolished. A search of the Jesuit archives has already been performed and drawings were found for the 1950 library only. Confirm, produce digital photos if not already on file at the District, and compile.

b. Collect and compile existing digital photographs of current exterior and interior views, as wells as historical views available, on file at the District., as part of the new digital archive. It is not anticipated that additional photographs will need to be produced, given the quantity and quality of photos included in Knapp 2010.

Digital photographs should conform to the NPS’s NRHP Photo Policy Factsheet: https://www.nps.gov/Nr/publications/bulletins/photopolicy/Photo_Policy_update_2013_05_15.pdf

9.) Q: Is there a need to survey and preserve artifacts from the buildings?

A: The buildings identified for demolition may contain features, materials, and artifacts of value. For this reason, a general survey and inventory should be conducted as an early task in the rehabilitation, with immediate salvage of vulnerable items. The items would be stored, catalogued, and curated by the District as part of the District collections.

10) Q: If the waterfall were in perfect condition someone could fall off, how do you handle _

hazardous conditions like the waterfall? A: We would protect from fall hazards from above, and place signs below.

11) Q: Is the EIR for the project available for review? A: The Bear Creek Redwoods Preserve Plan EIR is available for review on the District website: https://www.openspace.org/our-work/projects/bcr-plan

12) Q: Are there any extensions on the submittal deadline? A: Not at this time.

13) Q: Has the District identified a budget for the project? A: The estimate of probable cost of implementation of this phase of the project is approximately $3M. Based on this cost estimate, this District has identified a design budget of $500,000.

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6 February 2012 VIA ELECTRONIC MAIL Mr. Kirk Lenington Midpeninsula Regional Open Space District 330 Distel Circle Los Altos, CA 94022 Subject: Archive Review and Site Inspection Former Alma College Property Los Gatos, California

Dear Mr. Lenington:

ERM-West, Inc. (ERM) was commissioned by Midpeninsula Regional Open Space District (MROSD) to conduct an archive review and focused field investigation at the Former Alma College property located at 19380 Bear Creek Road in Los Gatos, California (site). ERM understands that the site is bounded by Highway 17 to the east, Bear Creek Road to the west, Briggs Creek to the north, and an unpaved road to the south (Figure 1).

BACKGROUND AND SCOPE OF WORK

ERM reviewed available documents related to the former Alma College at the Jesuit Archives of the Santa Clara University Library on 3 November 2011 and 10 January 2012, and also conducted a review of readily available information from on-line searches for the former college. Based on review of available information, the site and adjacent areas were first occupied by sawmills in the 1850s, followed by residential estates from the 1880s to 1934. In 1934, the Sacred Heart Novitiate of Los Gatos and the Jesuit Order purchased the site and founded Alma College. The college was relocated in 1969, and the site was subsequently used as a private boarding school until 1989; since which time, the site has been unoccupied.

Environmental Resources Management 2525 Natomas Park Drive Suite 350 Sacramento, CA 95833 (916) 924-9378 (916) 920-9378 (fax) www.erm.com

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In response to a release of oily water from a previously unknown underground storage tank (UST) during a heavy rainstorm in March 2011, ERM performed a focused field investigation and archive review to identify possible tanks, vessels, and associated piping that may contain hazardous materials or wastes, as well as other potentially hazardous materials. ERM’s scope of work included the following tasks:

� Review of historical documents at the Jesuit Archives of the Santa Clara University Library;

� Site inspection of buildings, structures, and other features; focusing primarily on areas with utility systems, piping, and potential storage tanks;

� Documentation of site conditions with photographs, which are included in Appendix A; and

� Preparation of this letter report.

FINDINGS

Archive Review

ERM performed an archive review on 3 November 2011, prior to the site visit, and again on 10 January 2012, following the site visit. The review included all available documents related to historical uses of the site, focusing on potentially hazardous materials and storage tanks. Many of the historical documents provided information on both the current site and surrounding areas. A summary of the findings from the archive review is provided below.

Septic Tanks and Sewage Systems

Historical documents and drawings indicate that several septic tanks were installed beginning as early as 1925. The following list provides a brief summary of these tanks and systems, as well as locations, where possible:

� A drawing, dated 1925, depicted three concrete septic tanks of 100 to 200 gallons each, and associated sewer piping.

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� In 1938, a sewage disposal system was installed, including a tank, trickling filter, and spray system, which distributed wastewater via a spray system along the hillside “at least 400 feet west” of the “new” San Jose – Santa Clara Highway and “at least 100 yards” from the Rundell Creek.

� Additional septic tanks and associated leach fields were located northwest of the gardener’s house; east-northeast of the green house, across the state highway; west-southwest of the barn, across the state highway, which consisted of a rock filter and “Imhoff” tank sludge bed; west of the greenhouse and northwest of the Hot House; overflow settling basins west of the main house; northeast of the main college buildings; northeast of the classroom building; east end of the “Village” (group of main buildings, including those above); and south of the Village, with a 6-inch septic pipe extending to the tank east of the village.

As noted above, the documents and figures reviewed also included areas beyond the current site boundaries. The areas and buildings with septic tanks and systems described above that appear to be located within the current site boundaries include the main house, “northeast of the main college buildings,” northeast of the classroom, east end of the Village, and south of the Village. As described in the Site Investigation section below, during ERM’s site visit, a pipe measuring approximately 6 inches in diameter was observed east-southeast of the Village and southeast and beyond the former swimming pool. However, the former use of the pipe could not be determined during the site visit. Based on additional drawings reviewed during the January 2012 archive review, this pipe appears to be related to a former septic tank (see Figure 2 and Photograph #1 in Appendix A).

Underground Storage Tanks and System Piping

Archive document review indicated three potential USTs once located at the Former Alma College. Scanned images of the historical maps and pictures are included as Appendix B.

� Historical documents indicated that an oil storage tank (5-feet by 10-feet) used for heating oil was located at the southern exterior of a dormitory building, and a 6-inch fill pipe reportedly extended approximately 140 feet south to a filling box located on a concrete slab.

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o ERM oversaw the removal of an underground storage tank adjacent to the former dormitory (now demolished), in November 2011. Details regarding this work can be found in the following document: Summary Report for Removal of Underground Storage Tank and Associated Piping – Former Alma College (ERM 2012). The tank and associated piping removed was similar in size to that noted on the archive drawings; however, the storage tank was located on the opposite side of the building. Additionally, the 6-inch fill pipe ran northwest for approximately 22-feet, where it had previously been severed, and was removed by others beyond this point.

� In a figure dated 1916, a 1,500-gallon UST is shown supplying heating oil to a boiler used to heat the swimming pool, or Roman Plunge. The UST is shown to be located below ground and downslope from the pool, which was reportedly backfilled during the 1970s. It is unknown whether the UST was removed, or whether the heating system was ever installed. Site observations regarding the pool and potential UST are provided in the Site Investigation section, below.

� Photographs dated 1951 depict a gasoline pump that appears to be located south of the former main house. The first picture shows the gasoline pump in the foreground with an arbor and brick steps in the background, which were likely a part of the Roman Plunge. A second photograph shows the fuel pump and it’s position relative to the main house, where it is located across the road (south) from of the house. The third and final photograph shows the UST within an excavated area, which appears to be during the installation. Although there is not a scale, the size of the UST appears to be consistent with a 1,500-gallon, (5-feet by 10-feet) tank (Appendix B).

Historical Site Uses – Petroleum, Timber, and Vineyards

Document review indicated that portions of the site and adjacent areas were leased for oil and gas rights, timber harvesting, and vineyard use at various times since initial development. Oil and gas leases were issued during the 1950s for the area of Township 9 South, Range 1 West by Union Oil and others; however, ERM was not able to determine where on the property these areas were located. Based on a review of California Department of Conservation, Division of Oil, Gas, and

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Geothermal Resources (DOGGR) Online Mapping System, ERM did not find any documentation of oil and gas development on site.

Timber harvesting was reportedly conducted on site from approximately 1971 until 1979. Based on documents reviewed, it appears that trees were removed; however, no other lumber activities appear to have been conducted on site. Timber harvesting was also reportedly conducted in the vicinity of Township 9 South, Range 1 West.

Vineyard leases, for the planting and harvesting of grapes, were issued to Theobold Vineyard from approximately 1941 until 1946, which was reportedly located along the north side of Dougherty Road, adjacent to a residence; in 1978 in the vicinity of Bear Creek Road, on parcel numbers 22-02-11, 12, and 14, 22-06-3, 22-05-3 and 4, and 17-63-4; and to St. Charles Vineyard from approximately 1978 until 1989. Based on topographic maps and historical figures, it appears that the vineyards were located to the north and south of the property, but not actually within the current site boundaries.

Historical Site Uses – Hazardous Materials

In addition to the information provided above, the following site conditions and uses were noted from documents and drawings reviewed for the site:

� On a figure depicting the layout of the dormitory building, an oil-fueled boiler was indicated, as well as a transformer; however, only remnants of the boiler system was observed during the field investigation.

� Various chemicals, including copper sulfate, Phygon-XL, 2,4-dichlorophenoxyacetic acid, Benoclor 3, and sodium arsenite powder, were noted as potentially used to control algae in the on-site lakes. Only one lake, Upper Lake, remains and is located at the western end of the site, adjacent to Bear Creek Road.

� A grease trap was associated with the faculty residence. No evidence of a grease trap was observed on site during the site visit.

� According to a Fire Insurance Map, dated 1946 and corrected in 1950, several shops and storage sheds were located at the eastern portion of the Village, including a tailor shop, book binding shop,

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print shop, machine shop, and automobile garage. It is likely that automobile repair or fueling was conducted on site, considering the presence of the gasoline pump, identified in pictures and mentioned in the previous section. Based on the site visit, these buildings appear to have been demolished, with the exception of a garage, located southeast of the former main house. Field observations of the garage are provided in the next section.

� Steam piping originated from the boiler room in the dormitory building, and extended below ground to other buildings within the Village. Although the piping material and insulation types are unknown, steam piping with suspect asbestos-containing insulation was observed in the boiler room and within crawlspaces beneath several of the buildings. The piping is discussed further below.

Site Inspection

Ms. Deborah Scanlon Wall of ERM conducted the site visit on 1 December 2011. Ms. Scanlon Wall was assisted by Mr. Virgil Blake, also of ERM, and accompanied by an MROSD park ranger during the building inspection portion of the site visit. The site visit included a walkthrough of accessible areas of the buildings, structures, and undeveloped areas of the site.

The Former Alma College property and buildings have changed markedly since initial development, and subsequently occupation by the Jesuits. As of the date of the site inspection, the following structures were identified, located from west to east in the Village area: Upper Lake; a driveway/entrance area; wooden shed (south of the entrance area); remnants of a foundation (north of the entrance area); remnants of the dormitory building, including a portion of the basement; concrete block storage building; remnants of a structure or patio area; classroom building; library; chapel; remnants of the central fountain; remnants of the main house and adjoining carport; garage; and remnants of the Lily Pond and Roman Plunge. Remnants of former unidentifiable structures/foundations were observed further east-southeast of the Village, along an unpaved road extending to what appeared to have been a rear gate/entrance. Additionally, a large water storage tank, of unknown capacity, is located on a hilltop in the eastern portion of the site, near Highway 17. The water tank is accessed and surrounded by an unpaved roadway. The Village area is

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somewhat level; however, the site topography is hilly overall, with steep slopes downward to the north and south from the main Village.

ERM’s observations regarding potential storage tanks and hazardous materials at the site are described below.

Storage Tanks

As noted above, an oil storage tank (5-feet by 10-feet) used for heating oil was noted on drawings in the archive review as being located at the southern exterior of a dormitory building. A 6-inch pipe reportedly extended approximately 140 feet south to a filling box located on a concrete slab (Appendix B). Archive reviewindicated only one central boiler and associated heating oil storage tank was located on the site, with steam piping extended from this one location to supply other buildings within the Village. It is unknown if the drawings were proposed plans or as-builts. No indication of additional storage tanks were observed anywhere in the vicinity of the dormitory building during the field investigation.

An underground oil storage tank was noted on blueprints as being associated with swimming pool heating equipment, and located downhill from the former pool, with two pipes extending from the equipment to the pool (Appendix B). No evidence of a UST, fuel oil conveyance piping, or pool heating equipment was observed during the site visit. Metal piping extending from the ground was noted in two locations, southeast and northeast of the former pool. Both locations were downhill from the pool structure and along unpaved roads (see Figure 2 and Photographs 1 and 2 in Appendix A). Based on the drawing reviewed and approximate locations illustrated on Figure 2, these pipes appear to be associated with a septic tank and a water line, respectively, and are not likely associated with a UST.

Uninsulated metal and plastic piping was observed in numerous locations throughout the site, especially along hillsides. The majority of this piping appeared to be associated with water uses, such as irrigation and sanitary supply. As noted above, pipes were observed to be extending upward from the ground in two locations southeast and northeast of the former pool.

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Unidentified metal pipes were also observed to extend from the ground in the following locations:

� East End, Near Rear Entrance: A metal pipe, approximately 2 inches in diameter and 5 feet in height, was observed adjacent to the remnants of a former structure near the rear entrance (see Figure 3 and Photograph #3). The former structure and use of the pipe are unknown; however, as shown on Figure 3, the pipe is in the approximate location of former structures. Additionally, a metal pipe, approximately one-half inch in diameter and 1 foot in height, was observed on the opposite side of the former structure. The pipe was painted yellow and appeared to be related to natural gas; however, the exact use is unknown.

� East of Garage: A metal pipe, approximately 1 inch in diameter and 2 feet in height, was observed in a grass area adjacent to what appeared to be a former brick entrance to a patio area, just east of the garage (Photograph #4). The use of the pipe is unknown; however, it may be related to the former gasoline pump and associated UST described above.

� West of Library: A metal pipe, approximately 2 inches in diameter and 3 feet in length, was observed extending at an angle from a grass area adjacent to the west of the library. It is unknown if the pipe is debris or is associated with underground piping or other features.

� Former Pool: Metal pipes, approximately 2 inches in diameter, were observed in various locations extending from brick features at the former pool area. The pipes may have been associated with water supply to the pool; however, the exact use is not known.

� Classroom: A metal pipe, approximately 2 inches in diameter and 2 feet in length, was observed to extend from the ground on the southern side of the classroom building (Photograph #5). The use of the pipe is unknown.

� Main House: An approximately 2-inch pipe, covered with suspect asbestos-containing corrugated paper insulation, was observed along a central hallway in the main house. The piping extended to the eastern exterior of the house and then into the ground (Photograph #6). Pipes of this size and insulation are typically used for hot water or steam supply for heating; however, the use of this

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system is unknown. Additionally, the further extent of the piping is unknown.

Asbestos-Containing Materials, Lead-Based Paint, and Mold

Based on the age of the buildings at the site, there is a potential for asbestos-containing materials (ACMs) and lead-based paint (LBP) to be present. An asbestos survey was not included in ERM’s scope of work; however, based on observations during the site visit, suspect ACMs observed at the site include flooring, wall materials, ceiling tiles, window putty, fire doors, wire insulation, chalkboards, pipe insulation, and roofing shingles. As noted above, steam piping with suspect asbestos-containing insulation, was noted in crawlspaces beneath the buildings (Photograph #7). Due to radiators being located in the buildings, this piping may also be located within areas, such as wall and floor spaces, and areas between buildings that were not accessible during the site visit. The suspect ACMs were observed in fair to damaged condition.

While a lead survey was not performed by ERM, based on observations during the site visit, the majority of painted surfaces appeared to be in fair condition, with areas of poor condition, including peeling paint, observed throughout the property.

A mold survey was also not performed by ERM; however, areas of potential mold were noted in the living/kitchen space at the east end of the library building.

Potentially Hazardous Materials and Equipment

Various chemical containers and equipment that has the potential to contain hazardous materials were observed throughout the site, primarily in or adjacent to the Village, as described below:

� Various Buildings: Electrical equipment, such as switches that may contain mercury and light ballasts that may contain polychlorinated biphenyls, were observed throughout the buildings in the Village.

� Dormitory: An incinerator was identified in the basement of the dormitory. The interior of the incinerator was not accessible, and is assumed to have been used for burning of refuse.

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� Storage Building: A piece of equipment that appeared to be a kiln was observed in the storage building. The interior of the equipment was not accessible to observe for potential hazardous materials, such as asbestos insulation.

� Library: One gallon containers of paint thinner and antifreeze were observed on the walkway along the northern side of the library. No staining was observed adjacent to the containers.

� Main House and Carport: Two refrigerators were observed in the Carport adjacent to the main house, and additional equipment, which appeared to be refrigerators, was located on the western exterior of the house, beneath an overhang. It is unknown if the equipment contains refrigerants. No staining was observed adjacent to the equipment.

� Garage: An automobile, lawnmower, and various debris were observed in the top level of the garage (the lower levels were not accessible). No staining was observed; however, the floor surface was covered with debris (Photograph #8).

� Lower (Northern) Road: A dented metal drum, labeled as containing a floor maintenance substance, and unknown equipment pieces were observed on the hillside below the northeastern portion of the main house (Photograph #9). Due to vegetation coverage, it is unknown if staining was present on the soil.

RECOMMENDATIONS AND CLOSING

Based on the archive review and the site visit, ERM has the following conclusions and recommendations regarding site conditions:

Storage Tanks and Miscellaneous Piping

Although a UST related to the boiler for the dormitory was removed by ERM in 2011, the archives reviewed indicated that there could be three additional USTs at the site which are summarized below.

Additional Boiler UST

Archive drawings depicted the 1,500 gallon storage tank feeding the dormitory boiler in a different location than that of the removed UST

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on the north side of the building. A second UST may potentially be located on the south side of this same building; however, evidence of such, other than the archive drawings, was not observed in the field.

Pool Heater UST

A UST associated with swimming pool heating equipment, located downhill from the former pool was noted on blueprints during the archive review. Two potential locations were noted during the site visit; however, based on further archive review, these locations appear to be associated with a septic tank and water line. No physical indications of this system were observed in the field.

Gasoline UST

Photographs dated 1951 depict a gasoline pump that appears to be located south of the former main house. There are two photographs showing this pump, and another picture that was found in the same set of pictures that shows a UST in a pit with a worker standing on top of it. It appears that the UST is being installed. No other evidence of this fueling system was observed in the archive review; however a pipe extending from the ground near the garage was noted during the site visit which may be related to this system.

Septic Tanks and Miscellaneous Piping

Numerous septic tanks were noted in the archive review; however, with the exception of a few pipes that appear to be related, none were observed during the site visit.

Several areas were observed during the site visit to contain metal piping extending below the ground surface. Based on additional archive review, two pipes appear to be associated with a septic tank and water line. A third pipe, near the rear entry of the site, is in the approximate location of former structures, but its former purpose is unknown.

Multiple piping systems were identified during the site investigation but were not identified on the archive drawings. The origin and purpose of these systems cannot be further assessed without further exploration of subsurface conditions at these locations, thus the potential for associated underground tanks cannot be ruled out.

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Based on the findings of the archive reviews and site inspection, additional investigation at the site is warranted to determine whether there are additional underground structures on site and the potential for associated soil and/or groundwater impacts. ERM recommends that a geophysical survey be conducted at the site to confirm the presence or absence of additional underground structures and to determine the extent of associated piping, primarily in the suspected locations of additional USTs (south of the dormitory/plant building, downslope from the pool/Roman Plunge, and south of the former main house). Soil and/or groundwater sampling is recommended in the vicinity of these structures and piping to determine whether there is potential subsurface contamination. Soil and groundwater samples should be analyzed for petroleum hydrocarbons, volatile organic compounds (VOCs), and priority pollutant metals.

Asbestos-Containing Materials, Lead-Based Paint, and Mold

Based on both building age and site observations, there is a potential for ACMs and LBP to be present. Areas of suspect ACMs and LBP were identified in site buildings. Additionally, mold was observed in the east end of the library. ERM recommends a demolition-level asbestos survey to be conducted prior to any renovation or demolition activities that may disturb building materials.

On-Site Lake

Archive documents indicate various chemicals were reportedly used in the on-site lake to minimize weed and algae growth. ERM recommends that sediment and surface water sampling be conducted to determine whether historical chemical use in the lake has resulted in residual impacts. Sediment and surface water should be analyzed for petroleum hydrocarbons, VOCs, and pesticides.

Historical Site Uses

Hazardous materials, including those potentially contained within switches, ballasts, and equipment, may be located at the site. ERM recommends that an in-depth hazardous materials survey be conducted to further assess the presence of hazardous materials on site and to provide an inventory of equipment containing hazardous materials that will need to be removed and appropriately disposed. ERM also

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recommends a limited Phase II environmental site investigation, focusing on the areas of former structures (e.g., print shop, machine shop, storage) located on either side of the road near the rear entrance of the site to determine whether historic hazardous materials management practices on site have resulted in impacts to soil and groundwater. Soil and groundwater samples should be collected and analyzed for petroleum hydrocarbons, VOCs, and priority pollutant metals.

Please contact us if you have any questions regarding this report. ERM appreciates the opportunity to provide on-going environmental services to MROSD.

Sincerely,

Deborah Scanlon Wall Chris Wright Senior Project Manager Project Manager

David F. Scrivner, P.E. Partner-in-Charge

DSW/CVW/DFS/mjq/dao/0132148

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ouse

and

Car

port

App

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e Lo

catio

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ing

Poo

l and

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Pon

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pel

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Bear Creek Road

Alma C

ollege Road

Cha

se

Road

Highway 17

Gar

age

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ate

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Figu

re 1

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Page 18: Addendum No. 1 - Midpeninsula Regional Open … · Addendum No. 1 Addendum No. 1 ... Management In 1938, a sewage disposal system was installed, including a tank, trickling filter,

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Page 19: Addendum No. 1 - Midpeninsula Regional Open … · Addendum No. 1 Addendum No. 1 ... Management In 1938, a sewage disposal system was installed, including a tank, trickling filter,

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Page 20: Addendum No. 1 - Midpeninsula Regional Open … · Addendum No. 1 Addendum No. 1 ... Management In 1938, a sewage disposal system was installed, including a tank, trickling filter,

Appendix A Site Visit Photographs

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Page 21: Addendum No. 1 - Midpeninsula Regional Open … · Addendum No. 1 Addendum No. 1 ... Management In 1938, a sewage disposal system was installed, including a tank, trickling filter,

Photograph: 1 View of pipe and concrete section downhill, south-southeast of former swimming pool.

Former Alma College ERM 19380 Bear Creek Road Los Gatos, California

Photograph: 2 View of pipe located downhill, east of former swimming pool.

Former Alma College ERM 19380 Bear Creek Road Los Gatos, California

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Page 22: Addendum No. 1 - Midpeninsula Regional Open … · Addendum No. 1 Addendum No. 1 ... Management In 1938, a sewage disposal system was installed, including a tank, trickling filter,

Photograph: 3 View of pipe and remnants of former structure near rear entrance.

Former Alma College ERM 19380 Bear Creek Road Los Gatos, California

Photograph: 4 View of pipe adjacent to east end of the Garage.

Former Alma College ERM 19380 Bear Creek Road Los Gatos, California

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Page 23: Addendum No. 1 - Midpeninsula Regional Open … · Addendum No. 1 Addendum No. 1 ... Management In 1938, a sewage disposal system was installed, including a tank, trickling filter,

Photograph: 5 View of pipe adjacent to southern side of the Classroom.

Former Alma College ERM 19380 Bear Creek Road Los Gatos, California

Photograph: 6 View of piping that extends to exterior of Main House and into the ground.

Former Alma College ERM 19380 Bear Creek Road Los Gatos, California

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Page 24: Addendum No. 1 - Midpeninsula Regional Open … · Addendum No. 1 Addendum No. 1 ... Management In 1938, a sewage disposal system was installed, including a tank, trickling filter,

Photograph: 7 View of typical suspect asbestos-containing pipe insulation in crawlspaces beneath buildings.

Former Alma College ERM 19380 Bear Creek Road Los Gatos, California

Photograph: 8 View of debris in Garage.

Former Alma College ERM 19380 Bear Creek Road Los Gatos, California

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Page 25: Addendum No. 1 - Midpeninsula Regional Open … · Addendum No. 1 Addendum No. 1 ... Management In 1938, a sewage disposal system was installed, including a tank, trickling filter,

Photograph: 9 View of drum and debris on hillside northeast of Main House.

Former Alma College ERM 19380 Bear Creek Road Los Gatos, California

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Page 26: Addendum No. 1 - Midpeninsula Regional Open … · Addendum No. 1 Addendum No. 1 ... Management In 1938, a sewage disposal system was installed, including a tank, trickling filter,

Appendix B Archive Documents

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Page 27: Addendum No. 1 - Midpeninsula Regional Open … · Addendum No. 1 Addendum No. 1 ... Management In 1938, a sewage disposal system was installed, including a tank, trickling filter,

5-foot by 10-foot oiltank

Water tank

Boiler

Incinerator

Approximate Directionof North

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Page 28: Addendum No. 1 - Midpeninsula Regional Open … · Addendum No. 1 Addendum No. 1 ... Management In 1938, a sewage disposal system was installed, including a tank, trickling filter,

Loca

tion

of U

ST

rem

oved

by

ERM

in

2011

. Approximate

DirectionofNorth

DRAFT

Page 29: Addendum No. 1 - Midpeninsula Regional Open … · Addendum No. 1 Addendum No. 1 ... Management In 1938, a sewage disposal system was installed, including a tank, trickling filter,

PoolheaterUST

Poolheaterboiler

Poolheaterfeedand

returnwaterlines

Slopeofhillside

Pool

Boilerexhaustpipe

Fueloilfeedand

returnlines

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Page 30: Addendum No. 1 - Midpeninsula Regional Open … · Addendum No. 1 Addendum No. 1 ... Management In 1938, a sewage disposal system was installed, including a tank, trickling filter,

Pool

Poolheaterfeed/

returnwaterline

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Page 31: Addendum No. 1 - Midpeninsula Regional Open … · Addendum No. 1 Addendum No. 1 ... Management In 1938, a sewage disposal system was installed, including a tank, trickling filter,

Poolheaterfeedand

returnwaterlines

Poolheaterboiler

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Page 32: Addendum No. 1 - Midpeninsula Regional Open … · Addendum No. 1 Addendum No. 1 ... Management In 1938, a sewage disposal system was installed, including a tank, trickling filter,

Fuel pump

UST fill port

Stairs and arbor ofRoman Plunge

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Page 33: Addendum No. 1 - Midpeninsula Regional Open … · Addendum No. 1 Addendum No. 1 ... Management In 1938, a sewage disposal system was installed, including a tank, trickling filter,

Fuel pump

UST fill port

Former mainhouse

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Page 34: Addendum No. 1 - Midpeninsula Regional Open … · Addendum No. 1 Addendum No. 1 ... Management In 1938, a sewage disposal system was installed, including a tank, trickling filter,

UST

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Page 35: Addendum No. 1 - Midpeninsula Regional Open … · Addendum No. 1 Addendum No. 1 ... Management In 1938, a sewage disposal system was installed, including a tank, trickling filter,

BearCreekRoad

NorthLake

Approximate

locationofUST

andassociated

pipingremovedby

ERMinNovember

2011.

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Page 36: Addendum No. 1 - Midpeninsula Regional Open … · Addendum No. 1 Addendum No. 1 ... Management In 1938, a sewage disposal system was installed, including a tank, trickling filter,

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Page 37: Addendum No. 1 - Midpeninsula Regional Open … · Addendum No. 1 Addendum No. 1 ... Management In 1938, a sewage disposal system was installed, including a tank, trickling filter,

FormerRomanPlunge

(PondandPool)

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Page 38: Addendum No. 1 - Midpeninsula Regional Open … · Addendum No. 1 Addendum No. 1 ... Management In 1938, a sewage disposal system was installed, including a tank, trickling filter,

DRAFT