01.13.20 study session - esp.sultan.k12.wa.us

01.13.20 Study Session Sultan School District No. 311

Study Session Meeting

7:00 PM Sultan Elementary School Library

Sultan, Washington 98294

In compliance with the Americans with Disabilities Act, individuals needing special accommodations (including ancillary communications aids, and services) during this meeting should notify the District

Office three working days prior to Board meeting. A. CALL TO ORDER /ROLL CALL /FLAG SALUTE/REVIEW of AGENDA Call to Order.pdf B. PUBLIC INPUT

Agenda Item: Public Input.pdf C. STUDY SESSION Agenda Item: Study Session

1. CFAC Levy Proposal Discussion Presenter: Dan Chaplik, Mike Varnell, Daniel Baller, and CFAC Members

A. Agenda Item – Bus Barn and Critical Needs B. Levy Package (revised per discussions with DA Davidson and Foster Pepper 1‐9‐20) C. Supplemental Info for Capital Levy

2. School Visits Presenter: Dan Chaplik

A. Agenda Item ‐ School Visits.pdf B. 19‐20 ‐ Jan thru June School Visits.pdf

3. DNR Meeting (2/4/20) Presenter: Dan Chaplik

A. Agenda Item – DNR Board Meeting B. DNR History 2014‐15 through Dec 19 C. Sultan School Dist. Timber Sales 10_31_19 D. Seattle Times Article 1.1.20.pdf E. Seattle Times Article 1.3.20.pdf

4. Legislative Day on the Hill 2/9‐2/10 Presenter: Dan Chaplik *$195 per person prior to 1/24/20 ‐ no refunds after 1/24/2020

A. Agenda Item ‐ Legislative Conference.pdf

5. Board Retreat ‐ February 23, 2020

Presenter: Dan Chaplik A. Agenda Item ‐ Board Retreat.pdf 6. Sultan Middle School Roof Update Presenter: Dan Chaplik and Charlie Weaver A. Agenda Item – SMS Roof Additional Assessment

B. Sultan Middle School Fungal and Water Intrusion Assessment Report D. EXECUTIVE SESSION 1. _____National Security 2. _____Real Estate Acquisition/selling price 3. _____Negotiations on a publicly bid contract 4. _____Complaints/charges against an employee 5. _____Review the performance of a public employee 6. _____Qualifications of a candidate for elective office 7. _____Legal council or enforcement actions litigation or potential litigation

Executive Session.pdf E. ADJOURNMENT

Adjournment.pdf

SULTAN SCHOOL DISTRICT No. 311

Sultan, Washington

BOARD AGENDA ITEM: Call to Order

Study Consent Supt.’sSession Action Business Informational Report

1. Roll Call2. Flag Salute3. Review of Agenda

Additional Information Attached Fiscal Impact/Fund Source: N/A


Sultan, Washington

BOARD AGENDA ITEM : Audience


Time is provided for communications and /or individuals to address the Board of Directors.



Sultan, Washington

BOARD AGENDA ITEM: Study Session


Time is provided for discussing special topics with administration and the Board of Directors.


SULTAN SCHOOL DISTRICT No. 311 Sultan, Washington

BOARD AGENDA ITEM DATE:

D

Study Session

Consent Agenda Business Informational

Superintendent’s Report

AGENDA ITEM:

PERSONNEL INVOLVED:

BACKGROUND:

RECOMMENDATION:

Additional Information Attached Fiscal Impact/Fund Source: BOARD ACTION: NOTES:

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Sumpter Varnell Buoy Husmann Roesler

1/13/2020

✔

Discussion regarding Community Facility Advisory Committee(CFAC) Levy Proposal Discussion

Dan Chaplik and CFAC Members

At our school board meeting on 12/16/19, the Community Facility Advisory Committeerecommended to the Board of Directors an initial, first step towards stabilizing the debilitatingcritical needs of the Sultan School District facilities. The first step was to run a Capital Levy inApril to address these critical needs. At that time, funding for the Bus Barn had not beenclarified or included in the initial numbers that were discussed. At our CFAC meeting on 1-7-20,the group discussed their belief that the critical needs and the bus barn should be addressedsimultaneously, as a result, the numbers you see in the spreadsheet represent both criticalneeds and the bus barn.

In addition, some adjustments were made to the critical needs list that called for paying for thecemetery property and sound/lighting from our current cash on hand. Thus, we would only payback the general fund the $500,000 for the property near the high school. We will need todiscuss the overall package as well as these other points that were made at Monday's meeting.

Administration recommends support for the levy proposal setforth by the Community Facility Advisory Committee.

✔

See Attached

Sultan School District

Capital Project Levy

Package Development

Collection Year AV Est (PY) Growth % $1,000 Basis Est Rate/$1K Gross Levy Collection % Net Levy NV Debt Cap

2020 1,791,737,230$ 6,719,015$

2021 1,881,324,092$ 5.0% 1,881,324 0.98$ 1,843,698 97.0% 1,788,387 7,054,965$

2022 1,975,390,296$ 5.0% 1,975,390 0.98$ 1,935,882 97.0% 1,877,806 7,407,714$

2023 2,034,652,005$ 3.0% 2,034,652 0.98$ 1,993,959 97.0% 1,934,140 7,629,945$

2024 2,095,691,565$ 3.0% 2,095,692 0.98$ 2,053,778 97.0% 1,992,164 7,858,843$

2025 2,137,605,396$ 2.0% 2,137,605 0.98$ 2,094,853 97.0% 2,032,008 8,016,020$

2026 2,180,357,504$ 2.0% 2,180,358 0.98$ 2,136,750 97.0% 2,072,648 8,176,341$

12,058,920$ 11,697,153$

COMPLETED EXTRORDINARY EVENTS Amount

November 500,000

GF Balance 11/30/19 2,376,478$

COMMITTED EXTRAORDINARY EVENTS

January 300,000

February 72,500

Summer 2020? 72,500

Sub Total 445,000$

UPCOMING EXTRAORDINARY EVENTS ‐ Not Inc. in CFAC Package

Water/Structural Remediation ‐ SMS 1,200,000

RECOMMENDATION

Capital Projects Levy ‐ Apr 2020 (6 year) ‐ Filing due 02/28/20

Reimburse Extraordinary Purchases By GF 500,000$

Water Intrusion/Remediation ‐ SMS 1,200,000

Critial Needs (CFAC 12/11/19 recommendations) 5,541,611

Transportation Facility ‐ District Contribution 4,300,000

Contingencies 156,000

GRAND TOTAL ‐ ALL AREAS 11,697,611$

Est cost on avg home/mo ($250,000) 20.42$

Est cost on avg home/year ($250,000) 245.00$

Est Total Cost (6 yr)/household 1,470.00$

Comments

Property Purchase ‐ adjacent to SHS

Property Purchase ‐ Cemetary (not included in levy package)

Summer 2020

Stage lighting upgrades SHS (not included in levy package)

Stage sound upgrades SHS (not included in levy package)

Daniel Baller:See Hi-Lighted Cell Above

Daniel Baller:Upon levy passage/certification, district would issue LGO bond to begin addressing projects identified by CFAC. Debt would be structured for smaller borrowing/payments in years 1-3 to minimize cash flow impacts related to district contribution toward transportation facility.

Daniel Baller:NOTE - using INITIAL CSG est. Would need to save levy collections for CY 2021 & 2022 (and Spring 2023). Estimated construction would begin CY 2023 or 2024.

Daniel Baller:ESTIMATE - full extent of remdiation/cost unknown

1

SUPPLEMENTAL INFORMATION FOR CAPITAL LEVY PROJECTS JANUARY 2020 FUNDING – Capital Levy & Anticipated State Construction Assistance (SCAP)

With a $10.5M capital levy, the District would have to front-fund the entire $7.34M for the Transportation

Cooperative. That would leave $3.16M remaining from the levy that could be spent on other

projects. Once the SCAP funding from the Co-Op is received (during and after construction), the District

would have an additional estimated $3.06M to spend on projects.

TRANSPORTATION COOPERATIVE – Preliminary Space Program

A typical space program for a 10,000 square foot transportation facility could contain up to 4 enclosed

maintenance bays, a wash bay, open bay, parts storage, machine/welding room, grounds maintenance

equipment storage, office/work rooms and driver locker areas. This program is designed to support up to

45 buses.

This program and associated cost model assume use of a pre-engineered metal pole building, as well as

the following assumptions:

2

TRANSPORTATION COOPERATIVE – Potential Cost Savings

The cost estimate for the project is based on a 10,000 square foot facility, which is the minimum size

allowed to receive state construction assistance funding (WAC 392-346-050). This size should

accommodate up to 45 buses. The estimate is benchmarked from typical construction costs for similar-

sized transportation cooperatives in rural WA and includes anticipated cost escalation through the mid-

point of construction.

Without an actual design, it is difficult to determine where additional cost savings could occur. There are

a few items that could be reduced now, but they do not result in significant cost savings.

• Wetland Delineation ($25k) – Should be verified with the local jurisdiction, but it appears that no wetlands are present on the site.

• Reduce Design Contingency from 6% to 5% ($47k) – Five percent design contingency is within reason for this type of design.

• Reduce Construction Contingency from 6% to 5% ($47k) – Five percent contingency during construction is reasonable.

• Land use and permitting fees may be lower than estimated, though this would have to be verified with the City of Sultan.

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At such an early stage of the project it is not recommended that the budget be reduced. Better opportunities for potential cost savings would occur during the actual design and as part of the constructability review. Another option for cost savings is to construct all 10,000 square feet of the building shell (thus meeting the minimum size requirements for SCAP funding) but save select portions of the interior finishing until a later date. Preliminary cost modeling uses assumptions, which means that the actual construction costs could be

more than anticipated. Some of the greatest risks involve stormwater regulations and site development

costs. This estimate assumes very basic site development with minimal paving and no bioswales.

Depending on the availability and capability of regional stormwater facilities, the project may be required

to construct on-site treatment and detention facilities.

SAFETY & SECURITY UPGRADES – Definition of Scope

The safety and security estimates are based on typical improvements that school districts have been

making statewide. The estimates for Sultan are not based on project-specific elements, but instead

provide an allowance that can be used for whichever safety and security improvements are deemed most

important to the district. If the capital levy is approved, the specific scope of improvements at each school

would have to be determined and then designed. Design costs are included in the estimate.

Typical scopes of work include:

• Video Surveillance Systems

• Panic Alarm Systems

• Access Control Systems – Exterior Doors

• Classroom Door Hardware & Key System Upgrades - Interior Doors

• Main Entry Door System Protection Improvements

• Emergency Communications and Mass Notification Improvements (9-1-1, internal, other external)

• Exterior Lighting Upgrades

• Perimeter Security/Fencing Improvements

It is also important to note that there are potential issues with implementing safety and security upgrades

that aren’t cost related. In order to be successful with these upgrades, there must be a cultural shift by

staff, students, and the community. Some of these changes can be time consuming and controversial –

especially when related to ingress and egress at the middle and high school levels. The District must be

willing to take a hard line with these changes, ensure that access to facilities is controlled by one person,

and not allow exceptions to be made for select individuals.



D

Study Session



AGENDA ITEM:

PERSONNEL INVOLVED:

BACKGROUND:

RECOMMENDATION:


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1/13/20

✔

School Visits: Superintendent/School Board

Dan Chaplik/School Board Members

School visits have been put on the calendar for the 2019-2020school year. The calendar of remaining visits is attached;please determine what visits you are able to attend so that wecan schedule those accordingly.

Administration recommends agreement upon school visit dates.

Date School Time Director Director1/30/2020 GBE 1:30‐3 pm

2/20/2020 GBE 1:30‐3 pm

3/12/2020 GBE 10:30‐12 pm

4/2/2020 GBE 10‐11:30 am

4/23/2020 GBE 1‐2:30 pm

5/19/2020 GBE 2‐3:30 pm

6/11/2020 GBE 10‐11:30 am

1/15/2020 SES 1‐2:30 pm

2/5/2020 SES 10‐11:30 am

2/26/2020 SES 12:30‐2 pm

3/18/2020 SES 1‐2:30 pm

4/15/2020 SES 10:30‐12 pm

5/5/2020 SES 10‐11:30 am

5/28/2020 SES 12:30‐2 pm

2/3/2020 SHS 8‐9:30 am

2/24/2020 SHS 8‐9:30 am

3/16/2020 SHS 8‐9:30 am

3/30/2020 SHS 8‐9:30 am

4/20/2020 SHS 8‐9:30 am

5/11/2020 SHS 8‐9:30 am

6/1/2020 SHS 8‐9:30 am

1/29/2020 SMS 9‐10:30 am

2/19/2020 SMS 12‐30 ‐ 2 pm

3/11/2020 SMS 10:30‐12 pm

4/1/2020 SMS 9‐10:30 am

4/21/2020 SMS 10‐11:30 am

5/13/2020 SMS 1‐2:30 pm

6/2/2020 SMS 10‐11:30 am



D

Study Session



AGENDA ITEM:

PERSONNEL INVOLVED:

BACKGROUND:

RECOMMENDATION:


Mot

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1/13/2020

✔

Board of Natural Resources Meeting February 4, 2020

School Board

Attached are several documents that provide a picture what is happening with theDepartment of Natural Resources as it pertains to the Sultan School District which is ajunior taxing district.

The attached newspaper articles talk about the various groups that are suing DNRincluding Skagit County due to a reduction in timber revenues and DNR not meeting itsmandate. I also have attached a list of timber harvest projects in our school district thatare either in process or planned. The spreadsheet that is attached provides a picture ofwhat revenues have been raised for our district over the past few years up to the currentdate. It is worth noting that the Gold Bar City Council recently passed a resolution againstthe Middle May Timber Harvest. I will present to you a resolution supporting the MiddleMay Timber Harvest to consider at our January 27th board meeting.

If you are available to travel to Olympia on February 4th tospeak to the DNR board it would be great if you could join us.

Travel to Olympia

SULTAN SCHOOL DISTRICTDNR Revenue (3600)

2019 December 7,256

2019 November 154

2019 October 11,005

2019 September 5,470 23,885$

2019 August 2,304

2019 July 426,187

2019 June ‐

2019 May 402,056

2019 April 64,068

2019 March 106,618

2019 February 34,224

2019 January 32,798

2018 December (47)

2018 November 91,245

2018 October 64,195

2018 September 110,407 907,869$

2018 August 13,138

2018 July 102,325

2018 June 66,241

2018 May 210,476 DNR Becomes Retainable in GF 05/25/18

2018 April 70,645

2018 March 102,918

2018 February 46,169

2018 January 50,881

2017 December 342,251

2017 November 2,768

2017 October 2,606

2017 September 522,933 1,533,351$

2017 August 75,731

2017 July 158,428

2017 June 196,020

2017 May 6,418

2017 April 78,290

2017 March 201,397

2017 February 105,451

2017 January 337,343

2016 December 304,586

2016 November 36

2016 October 40,983

2016 September 52,713 1,557,396$

2016 August 7,987

2016 July 54,545

2016 June 36,701

2016 May 95,235

2016 April 1,618

2016 March 7,727

2016 February 171,994

2016 January 52,062

2015 December 101,340

2015 November 46,475

2015 October 10,298

2015 September 6,603 592,586$

2015 August ‐

2015 July ‐

2015 June 16,209

2015 May 70,261

2015 April (447)

2015 March ‐

2015 February ‐

2015 January (4)

2014 December 50,467

2014 November 707

2014 October 189,308

2014 September 46,881 373,381$

4,988,469$ GRAND TOTAL

2017‐18

2018‐19

2019‐20

2016‐17

2015‐16

2014‐15

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Gold Bar

Index

SultanMonroe

Sultan School DistrictSultan School Dist. Trust LandsDNR Managed LandsNatural Resource Conservation AreaWilderness AreasState ParkU.S. HighwayState Highway

Mero Corner - SoldRye Wire - SoldCorner Two - Sold

Brushcrasher - PlannedMiddle May - PlannedSky Rider - Planned

Lone Rider - PotentialTimber Toe - PotentialBlue Dune Buggy - Potential

Reiter Foothills ForestDRAFTSubject to revision without notificationMap produced 10/2019Washington StateDepartment of Natural Resources

.0 0.75 1.5 2.25 3Miles

Sultan School Dist. Timber Sales

Lone Rider

Rye Wire

Mero Corner

Timber Toe

Brushcrasher

Middle May

Corner Two

Blue Dune Buggy Sky Rider

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D

Study Session



AGENDA ITEM:

PERSONNEL INVOLVED:

BACKGROUND:

RECOMMENDATION:


Mot

ion

Seco

nd

Aye

Nay

Abst

ain

Oth

er


1/13/20

✔

Planning for Legislative Day on the Hill

Dan Chaplik

The WSSDA/WASA Legislative Conference and Day on the Hillis scheduled for February 9 and 10. We need to know who willbe able to attend in order to complete registrations and travelarrangements. The conference is held a the South PugetSound Community College and Capitol Campus.

Administration recommends Board Director confirmation forthose that will be able to attend the Conference and Day on theHill.



D

Study Session



AGENDA ITEM:

PERSONNEL INVOLVED:

BACKGROUND:

RECOMMENDATION:


Mot

ion

Seco

nd

Aye

Nay

Abst

ain

Oth

er


1/13/20

✔

Confirmation on February 23, 2020 Board Retreat

Dan Chaplik and the Sultan School Board of Directors

The Board retreat is scheduled for Sunday, February 23, 2020and tentatively scheduled from 11am - 3pm. The time can beadjusted if there is another block of time that would work betterfor everyone.

Administration recommends confirmation for a Board retreat onFebruary 23, 2020.



D

Study Session



AGENDA ITEM:

PERSONNEL INVOLVED:

BACKGROUND:

RECOMMENDATION:


Mot

ion

Seco

nd

Aye

Nay

Abst

ain

Oth

er


01/13/20

✔

Additional Fungal Assessment/Water Intrusion Investigation ofRoof Drain Leaks.

Dan Chaplik and Charlie Weaver

Please see the attached report from the additional fungalassessment/water intrusion investigation from PBS.

Administration recommends review of the assessment anddiscussion regarding action steps.

2 1 4 E A S T G A L E R S T R E E T , S U I T E 3 0 0 S E A T T L E , W A 9 8 1 0 2 2 0 6 . 2 3 3 . 9 6 3 9 M A I N

8 6 6 . 7 2 7 . 0 1 4 0 F A X P B S U S A . C O M

Additional Fungal Assessment/Water Intrusion Investigation of Roof Drain Leaks Sultan Middle School 301 High Avenue Sultan, Washington 98294

Prepared for:

Sultan School District 514 4th Street Sultan, WA 98294

January 9, 2020 PBS Project 41610.000

ADDITIONAL FUNGAL ASSESSMENT/WATER INTRUSION

INVESTIGATION OF ROOF DRAIN LEAKS

Sultan Middle School 301 High Avenue


Prepared for

Sultan School District 514 4th Street

Sultan, WA 98294

This report is for the exclusive use of the client and is not to be relied upon by other parties. It is not to be photographed, photocopied, or similarly

reproduced in total or in part without the expressed written consent of the client and PBS.

Prepared by PBS Engineering and Environmental Inc.

214 East Galer Street, Suite 300 Seattle, Washington 98102

(206) 233-9639

PBS Project No: 41610.000

January 9, 2020

Additional Fungal Assessment/Water Intrusion Investigation of Roof Drain Leaks Sultan School District

Sultan Middle School Sultan, Washington

i January 9, 2020

PBS Project No. 41610.000

TABLE OF CONTENTS

1 EXECUTIVE SUMMARY ................................................................................................................................... 1

2 INTRODUCTION .............................................................................................................................................. 2 2.1 Limitations .................................................................................................................................................................................... 2

3 DISCUSSIONS OF FINDINGS .......................................................................................................................... 2 3.1 Visual Assessment ..................................................................................................................................................................... 2 3.2 Moisture Testing ........................................................................................................................................................................ 6

4 CONCLUSIONS AND RECOMMENDATIONS ................................................................................................ 6

SUPPORTING DATA

APPENDICES

APPENDIX A: Exploratory Location Plan APPENDIX B: Photographs APPENDIX C: Previous PBS Report Dated November 20, 2019

©2020 PBS Engineering and Environmental Inc.



1 January 9, 2020


1 EXECUTIVE SUMMARY PBS Engineering and Environmental, Inc. (PBS) was retained by the Sultan School District to perform a limited fungal assessment and water intrusion investigation of select areas at Sultan Middle School located at 301 High Street, Sultan, Washington. The overall purpose of the investigation was to evaluate suspect water intrusion and fungal growth in wall cavities at roof drain scupper locations. In October-December 2019 the Sultan School District (SSD) performed water intrusion repairs to the east building elevation at room 601 and to the south kitchen elevation. In November 2019, PBS investigated the northeast Library wall and Classroom 208/209 at roof drain scupper locations and found significant fungal and moisture impacts in each of these locations. See attached PBS report dated November 20, 2019. As a result of this finding PBS was requested to investigate the remaining accessible roof drain scupper locations on campus. PBS investigated above suspended ceilings and cut an interior exploratory hole at each scupper location to evaluate conditions in the Girl’s Locker Room, northwest side of the Library, Classroom 201, Classroom 204, Classroom 205, Classroom 206/207, Classroom 210, Office 102 and Office 104. PBS noted the following items of concern during this investigation:

• The exploratory opening over the lockers on the east wall of the Girl’s Locker Room revealed the inside of the exterior oriented strand board (OSB), wood wall framing, and fiberglass insulation to have excessive moisture with fungal growth.

• Room 204 northeast corner was found to have excessive moisture on the inside of the exterior OSB and the interior lower sill plate. Fungal growth was observed on wall cavity OSB and framing. Exterior concrete foundation has visible moisture below brick at scupper drain line.

• Library northwest corner; PBS observed excessive moisture on the inside of the exterior OSB and light fungal growth on the underside of plywood roof sheathing visible.

• Room 201 northwest corner and Office 102 was found to have excessive moisture on the inside of the exterior OSB.

Moisture testing at the noted locations revealed that the interior side of the exterior OSB and/or wood wall framing to have excessive moisture. This is an indication that active water intrusion is occurring at each location. PBS recommends each of these locations be further investigated to determine complete extent of impacts. PBS also recommends a building envelope professional determine the specific source of water intrusion and provide recommendations for correcting those deficiencies. Fungal growth in buildings has the potential to cause adverse health impacts to sensitive or immune-compromised individuals. Disturbance of the fungal contaminated materials has the potential to cause inhalation and dermal exposures to workers and occupants. PBS recommends trained and experienced personnel using appropriate personal protective equipment (PPE) and engineering controls are used to remove the fungal contaminated components in accordance with the current industry guidelines. Industry guidelines to follow include but are not limited to EPA’s document “Mold Remediation in Schools and Commercial Buildings.” Based on our observations it is our opinion that structure damage may be present in the Girl’s Locker Room wall cavity at the scupper location. PBS recommends that a structural engineer evaluate the condition of the wall and roof framing at this location to determine if its structural integrity has been compromised. The remaining locations did not appear to have structural concerns but should be checked by a professional.



2 January 9, 2020


2 INTRODUCTION The Sultan School District was concerned about roof drain scuppers leaking and causing fungal growth and building damage at Sultan Middle School. PBS was requested to perform exploratory investigations of interior wall cavities at select roof drain locations on campus. PBS’ work scope included investigations in the Girl’s Locker Room, northwest side of the Library, Classroom 201, Classroom 204, Classroom 205, Classroom 206/207, Classroom 210, Office 102 and Office 104 to determine potential building impacts. Our scope included cutting exploratory openings to look for evidence of fungal growth and excess moisture at each scupper location. Destructive investigations were not performed on the roof assembly or exterior building envelope. 2.1 Limitations This study was limited to the observations and locations indicated to determine the general absence or presence of suspect fungal growth and water intrusion. The site as a whole may have other or similar concerns that were not characterized by this study. Further study is warranted. The findings and conclusions of this work are not scientific certainties but, rather, probabilities based on professional judgment concerning the significance of the data gathered during the course of this investigation. PBS is not able to represent conditions on the site beyond those conditions detected or observed at the time of the investigation. This investigation was limited in scope and was not intended to be an exhaustive study but, rather, a screening of suspect water intrusion and potential fungal growth at the above nine (9) locations. 3 DISCUSSIONS OF FINDINGS On December 19, 2019, PBS conducted a fungal assessment and water intrusion investigation of a portion of the Sultan Middle School building located at 301 High Street, Sultan, WA. This included or excluded the areas previously noted in this report. The single-story building is owned by the Sultan School District and used as a middle school. The building is slab on grade, wood framed, with a slightly pitched membrane roofing system. Exterior walls are primarily clad with brick veneer and a metal framed window and door systems. The interior is finished with carpet, sheet vinyl, gypsum wallboard and suspended ceilings. 3.1 Visual Assessment A PBS industrial hygienist conducted a visual assessment and moisture testing at approximately nine (9) exploratory locations during this investigation. PBS exploratory locations are labeled “L4 through L12.” See Appendix A, Figure 1 for the exploratory locations. This included cutting openings in gypsum wallboard and investigating wall cavities and above suspended ceilings. PBS assessed and documented conditions related to suspect fungal growth and excess moisture. Representative photographs of pertinent observations are presented in Appendix B. The two (2) roof drain scuppers located east of the Boy’s Locker Room and at the Storage Room northeast of the Boy’s Locker Room could not be evaluated as the interior walls are concrete masonry unit block walls. The previous PBS Limited Fungal Assessment/Water Intrusion Investigation Report dated November 19, 2019 is attached in Appendix C. Locations “L1 through L3” were used in this previous wall cavity investigation. The following is a summary of our observations for the current activity:



3 January 9, 2020


Girl’s Locker Room Exploratory L4 The exploratory hole was cut in the gypsum wallboard wall over the east metal locker bank, approximately 6-1/2 feet high. See Appendix A, Figure 1, Location ID – L4. The ceiling in this location is a gypsum wallboard hard lid. Suspect fungal growth, excessive moisture and OSB damage were observed in the wall cavity. See Appendix B (Photographs 1 and 2).

The wall construction behind the lockers consists of gypsum wallboard, plastic sheeting, fiberglass insulation, wood wall framing, oriented strand board (OSB) exterior sheathing and brick veneer as the exterior cladding. The fungal growth was observed on the interior side of the OSB as a black, swollen discoloration. This OSB was saturated wet at >40% Wood Moisture Equivalent (WME). See Appendix B, Photo 3. The fiberglass insulation was wet. The 2”x6” wood wall framing was wet at >40% WME. The interior wallboard was 0.3% gypsum moisture equivalent (GME). The brick veneer on the exterior of the building was observed to be wet at the base of the scupper drain line. See Appendix B, Photo 4. This maybe an indication that water is actively flowing from behind the brick veneer at the base of the wall or the scupper drain line is at least partially plugged up causing water to be diverted to the outside of the drain line and to a metal bracket attaching the drain line to the brick veneer.

Exploratory L5 This opening was located approximately 1-foot above floor level at the northeast corner of Classroom 204. See Appendix A, Figure 1, Location ID – L5. Suspect fungal growth was observed as black or light green staining on the interior side of the exterior OSB and lower wood sill plate. See Appendix B, Photo 5. Excessive moisture was observed within the wall cavity on the OSB and associated framing at 17.2% and 15.6% WME respectively. The wall construction consists of gypsum wallboard, plastic sheeting, fiberglass insulation, wood wall framing, OSB exterior sheathing and brick veneer as the exterior cladding. The wall construction above the suspended ceiling consists of plastic sheeting, fiberglass insulation, wood wall framing, OSB exterior sheathing and brick veneer as the exterior cladding. The roof underdeck consists of engineered wood roof trusses and plywood sheathing. Moisture levels of the wood components were approximately 9%-10% WME, similar to background “dry” materials. The moisture levels of interior gypsum wallboard were approximately 0.2%-0.3% GME, similar to background “dry” materials. The concrete foundation wall was observed to be wet below the brick veneer on the exterior of the building. This is an indication that water is actively flowing from behind the brick veneer at the base of the wall. The foundation wall was visibly wet across the span of approximately 1 foot. See Appendix B, Photo 6.

Exploratory L6 This opening was located approximately 1-foot above floor level at the southwest corner of Classroom 205. See Appendix A, Figure 1, Location ID – L6. Water staining was observed on the interior side of the exterior OSB and lower wood sill plate. See Appendix B, Photo 7. The wall construction consists of gypsum wallboard, plastic sheeting, fiberglass insulation, wood wall framing, OSB exterior sheathing and brick veneer as the exterior cladding. Moisture levels of the wood



4 January 9, 2020


wall cavity components were approximately 9%-10% WME, similar to background “dry” materials. The moisture levels of interior gypsum wallboard were approximately 0.2%-0.3% GME, similar to background “dry” materials. The wall construction above the suspended ceiling consists of plastic sheeting, fiberglass insulation, wood wall framing, OSB exterior sheathing and brick veneer as the exterior cladding. The roof underdeck consists of engineered wood roof trusses and plywood sheathing. Light water staining was observed on the OSB wall sheathing and the roof plywood underdeck. See Appendix B, Photo 8. Moisture levels of the wood components were approximately 10% WME, similar to background “dry” materials.

Exploratory L7 This opening was located approximately 1-foot above floor level at the northwest corner of Classroom 201. See Appendix A, Figure 1, Location ID – L7. Water staining was observed in the wall cavity on the lower sill plate. The wall construction consists of gypsum wallboard, plastic sheeting, fiberglass insulation, wood wall framing, OSB exterior sheathing and brick veneer as the exterior cladding. Excessive moisture was indicated on the interior side of the exterior OSB at 16.9% WME. The lower sill plate was found to be 14.2% WME, but above the background levels of approximately 9%-10% WME. This is an indication the lower sill plate is getting wet or has been wet and is drying. The moisture levels of interior gypsum wallboard were approximately 0.2%-0.3% GME, similar to background “dry” materials. See Appendix B, Photo 9. The wall construction above the suspended ceiling consists of plastic sheeting, fiberglass insulation, wood wall framing, OSB exterior sheathing and brick veneer as the exterior cladding. The roof underdeck consists of engineered wood roof trusses and plywood sheathing. Moisture levels of the wood components were approximately 11%, similar to background “dry” materials.

Library Exploratory L8 This opening was located approximately 1-foot above floor level at the northwest corner of the Library. See Appendix A, Figure 1, Location ID – L8. The framing nails within the wall cavity were rusty. See Appendix B, Photo 10 and 11. The wall construction consists of gypsum wallboard, plastic sheeting, fiberglass insulation, wood wall framing, OSB exterior sheathing and brick veneer as the exterior cladding. Excessive moisture was indicated on the interior side of the exterior OSB at 15.5% WME. The lower sill plate was found to be 14.6%, but above the background levels of approximately 9%-10% WME. This is an indication the lower sill plate is getting wet or has been wet and is drying. The moisture levels of interior gypsum wallboard were approximately 0.2%-0.3% GME, similar to background “dry” materials. The wall construction above the suspended ceiling consists of plastic sheeting, fiberglass insulation, wood wall framing, OSB exterior sheathing and brick veneer as the exterior cladding. The roof underdeck consists of engineered wood roof trusses and plywood sheathing. Fungal growth was observed as black staining on the plywood roof underdeck. See Appendix B, Photo 12. Moisture levels of the wood components were approximately 10%-11% WME, similar to background “dry” materials.

Exploratory L9 This opening was located approximately 2-feet above floor level at the southeast corner of Classroom 206. See Appendix A, Figure 1, Location ID – L9. This location falls directly in line with the intersection of Classroom 206 and 207 at the operable wall framework. Visibility in this wall cavity is very limited



5 January 9, 2020


due to structural framing at this location. The wall construction consists of gypsum wallboard, plastic sheeting, fiberglass insulation, wood wall framing, OSB exterior sheathing and brick veneer as the exterior cladding. Moisture levels of the wood wall cavity components were approximately 9%-10% WME, similar to background “dry” materials. The moisture levels of interior gypsum wallboard were approximately 0.2%-0.3% GME, similar to background “dry” materials. The wall construction above the suspended ceiling consists of plastic sheeting, fiberglass insulation, wood wall framing, OSB exterior sheathing and brick veneer as the exterior cladding. The roof underdeck consists of engineered wood roof trusses and plywood sheathing. Moisture levels of the wood components were approximately 10%-11% WME, similar to background “dry” materials.

Exploratory L10 This opening was located approximately 1-foot above floor level at the southeast corner of Classroom 210. See Appendix A, Figure 1, Location ID – L10. The wall construction consists of gypsum wallboard, plastic sheeting, fiberglass insulation, wood wall framing, OSB exterior sheathing and brick veneer as the exterior cladding. Moisture levels of the wood wall cavity components were approximately 9%-12% WME, similar to background “dry” materials. The moisture levels of interior gypsum wallboard were approximately 0.2%-0.3% GME, similar to background “dry” materials. See Appendix B, Photo 13. The wall construction above the suspended ceiling consists of plastic sheeting, fiberglass insulation, wood wall framing, OSB exterior sheathing and brick veneer as the exterior cladding. The roof underdeck consists of engineered wood roof trusses and plywood sheathing. Moisture levels of the wood components were approximately 10%-11% WME, similar to background “dry” materials.

Exploratory L11 This opening was located approximately 1-foot above floor level below the desk on the southwest side of Office 102. See Appendix A, Figure 1, Location ID – L11. The wall construction consists of gypsum wallboard, plastic sheeting, fiberglass insulation, wood wall framing, OSB exterior sheathing and brick veneer as the exterior cladding. Excessive moisture was indicated on the interior side of the exterior OSB at 21.5% WME. Moisture levels of the remaining wood wall cavity components were approximately 10%-11% WME. The moisture levels of interior gypsum wallboard were approximately 0.2%-0.3% GME, similar to background “dry” materials. See Appendix B, Photo 14. The wall construction above the suspended ceiling consists of plastic sheeting, fiberglass insulation, wood wall framing, OSB exterior sheathing and brick veneer as the exterior cladding. The roof underdeck consists of engineered wood roof trusses and plywood sheathing. Moisture levels of the wood components were approximately 9%-12% WME, similar to background “dry” materials.

Exploratory L12 This opening was located approximately 1-foot above floor level below the desk on the southwest side of Office 104. See Appendix A, Figure 1, Location ID – L12. The wall construction consists of gypsum wallboard, plastic sheeting, fiberglass insulation, wood wall framing, OSB exterior sheathing and brick veneer as the exterior cladding. The moisture indicated on the interior side of the exterior OSB was at 14.2% WME. This is an indication the OBS is getting wet or has been wet and is drying out. Moisture levels of the remaining wood wall cavity components were approximately 8%-9% WME, similar to background “dry” materials. The moisture levels of interior gypsum wallboard were approximately 0.2%-0.3% GME, similar to background “dry” materials. See Appendix B, Photo 15 and 16.



6 January 9, 2020


The wall construction above the suspended ceiling consists of plastic sheeting, fiberglass insulation, wood wall framing, OSB exterior sheathing and brick veneer as the exterior cladding. The roof underdeck consists of engineered wood roof trusses and plywood sheathing. Moisture levels of the wood components were approximately 8%-9% WME, similar to background “dry” materials.

3.2 Moisture Testing PBS used a moisture meter and infrared camera to help identify excessive moisture in building materials during this assessment. Moisture Meter PBS used the Delmhorst TechCheck Plus penetrating moisture meter to evaluate in-situ moisture levels of the exterior wall and roof underdeck components. In general, gypsum wall board with a sustained gypsum moisture equivalent (GME) of 0.5% or greater is capable of supporting fungal growth, given adequate time. Also, wood products with a sustained wood moisture equivalent (WME) of 15% or greater are capable of supporting fungal growth, given adequate time. GME of 0.5% and WME of 15% is the lower probable limit for most fungal species to amplify on these building materials. Some fungi can begin to amplify in 24-48 hours given the correct environmental conditions (i.e. temperature, moisture and food sources). Moisture readings were collected from accessible gypsum wall boards, wood framing, and plywood underdeck. Moisture readings ranged from 0.2% to 0.3% GME and 8% to >40% WME. Infrared Camera Survey PBS’ Thermographer used a FLIR B-300 Infrared (IR) Camera to briefly scan the interior side of the visually accessible perimeter walls from the ground level. The intent of the survey was to identify unusual thermal signatures or anomalies that may be indicative of excess moisture. No anomalies were observed. 4 CONCLUSIONS AND RECOMMENDATIONS This limited investigation was initiated due to concerns of water intrusion caused by leaking roof drain scuppers. Based upon PBS’ limited observations, PBS concludes and recommends the following:

• Fungal growth and active water intrusion were occurring at the perimeter wall beneath the roof drain scuppers on the east side of the Girl’s Locker Room (L4). Damage was observed to the interior side of the exterior OSB. The water source is believed to be roof drain scupper leakage.

• Fungal growth and excess moisture were observed on wood components within the wall cavity of Classroom 204 (L5).

• Fungal growth was observed on the roof underdeck at the northwest side of the Library (L8). Additionally, excess moisture was found in the wall cavity at this location.

• Excessive Moisture was observed on wood components within the wall cavities components of Classroom 201 (L7) and Office 102 (L11).

• PBS recommends all locations where excess moisture and or fungal growth is known to exist be opened up to determine complete extent of damage. PBS recommends removal or cleaning of all fungal/moisture impacted components. PBS recommends a building envelope professional investigate to determine moisture sources that may have caused the observed fungal growth and excess moisture and recommend proper repairs.



7 January 9, 2020


• Disturbance of fungal contaminated building materials has the potential to expose workers and occupants. PBS recommends trained and experienced personnel using appropriate PPE and engineering controls are used to remove and dispose of the contaminated materials. All fungal removal should be conducted in accordance with industry standards for such work, including but not limited to, EPA’s recommended guidelines - Mold Remediation in Schools and Commercial Buildings and the latest version of IICRC S520 Standard and Reference Guide for Professional Mold Remediation or the New York City Guidelines on Assessment and Remediation of Fungi in Indoor Environments.

• PBS recommends a contractor submit a work plan to an experienced industrial hygienist to help ensure proper health and safety protocols are used to protect the building and its occupants during remedial activities. Fungi and fungal particulate have the potential to cause adverse health impacts to sensitive or immune-compromised individuals. Disturbance of the fungal contaminated materials has the potential to cause inhalation and dermal exposures to workers and occupants and cause adverse health impacts.

Please do not hesitate to contact us if you have any questions regarding this report or require additional information. Report Prepared by: PBS Engineering and Environmental Inc., Michael Smith Sr. Industrial Hygienist Industrial Hygiene Group Reviewed By: GM

APPENDIX A Exploratory Location Plan

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APPENDIX B Photographs

Fungal Assessment/Water Intrusion Investigation Sultan School District


1 January 9, 2020

PBS Project No. 41610.000 20

Location L4 – Looking at the east wall of the Girl’s Locker Room

Location L4 – Exploratory cut in wall on the east side of the Girl’s Locker

room above the metal lockers.



2 January 9, 2020


Location L4 – Interior side of exterior OSB in wall cavity at east side of Girl’s

Locker Room. Damaged OSB, fungal growth and excess moisture observed.

Location L4 – Moisture on exterior of brick veneer. Scupper drain line, east

side of Girl’s Locker Room.



3 January 9, 2020


Location L5 – Wall cavity northeast corner of Classroom 204 fungal growth

on OSB.

Location L5 – Water on brick veneer and concrete foundation. Northeast

corner of Classroom 204.



4 January 9, 2020


Location L6 – Wall cavity southwest corner of Classroom 205. Water staining

on OSB wall and surrounding wood framing.

Location L6 – Water staining on underdeck of roof plywood. Southwest

corner of Classroom 205.



5 January 9, 2020


Location L7 – Northwest corner of Classroom 201. Interior GWB clean and

dry at 0.2% GME.

Location L8 – Northeast side of Library wall prior to cutting exploratory

hole.



6 January 9, 2020


Location L8 – Northwest Library wall cavity - rusty framing nails.

Location L8 – Northwest side of Library. Fungal growth on plywood roof

underdeck.



7 January 9, 2020


Location L10 – Wall cavity southeast corner of Classroom 210. No Issues.

Location L11 – Southwest side Office 102. Interior wallboard clean and 0.2% GME.



8 January 9, 2020


Location L12 – Exploratory hole southwest side of Office 104 below desk.

Location L12 – Wall cavity southwest side of Office 104 below desk. No

issues

APPENDIX C Previous PBS Report Dated November 2019

2 1 4 E A S T G A L E R S T R E E T , S U I T E 3 0 0 S E A T T L E , W A 9 8 1 0 2 2 0 6 . 2 3 3 . 9 6 3 9 M A I N

8 6 6 . 7 2 7 . 0 1 4 0 F A X P B S U S A . C O M

Limited Fungal Assessment/Water Intrusion Investigation Sultan Middle School 301 High Avenue Sultan, Washington 98294

Prepared for:

Sultan School District 514 4th Street Sultan, WA 98294

November 20, 2019 PBS Project 41610.000

LIMITED FUNGAL ASSESSMENT/WATER INTRUSION

INVESTIGATION REPORT

Sultan Middle School 301 High Avenue


Prepared for

Sultan School District 514 4th Street

Sultan, WA 98294

This report is for the exclusive use of the client and is not to be relied upon by other parties. It is not to be photographed, photocopied, or similarly

reproduced in total or in part without the expressed written consent of the client and PBS.

Prepared by PBS Engineering and Environmental Inc.

214 East Galer Street, Suite 300 Seattle, Washington 98102

(206) 233-9639

PBS Project No: 41610.000

November 20, 2019

Limited Fungal Assessment/Water Intrusion Investigation Sultan School District


i November 20, 2019


TABLE OF CONTENTS

1 EXECUTIVE SUMMARY ................................................................................................................................ 1

2 INTRODUCTION ........................................................................................................................................... 2 2.1 Limitations .................................................................................................................................................................................... 2

3 DISCUSSIONS OF FINDINGS........................................................................................................................ 2 3.1 Visual Assessment ..................................................................................................................................................................... 2 3.2 Moisture Testing ........................................................................................................................................................................ 4

4 CONCLUSIONS AND RECOMMENDATIONS .............................................................................................. 4

SUPPORTING DATA

APPENDICES

APPENDIX A: Exploratory Location Plan APPENDIX B: Photographs

©2019 PBS Engineering and Environmental Inc.



1 November 20, 2019


1 EXECUTIVE SUMMARY PBS Engineering and Environmental, Inc. (PBS) was retained by the Sultan School District to perform a limited fungal assessment and water intrusion investigation of select areas at Sultan Middle School located at 301 High Street, Sultan, Washington. The overall purpose of the investigation was to evaluate suspect water intrusion at two locations: the Library and Classroom 208/209. PBS conducted a visual inspection and moisture testing on November 13, 2019 to help identify water-impacted building materials and/or evidence of fungal growth. This included looking above suspended ceilings and cutting three (3) exploratory holes to evaluate conditions in the Library, Corridor outside of Library, and Classroom 208/209. In the Library, an exploratory opening was cut into the northeast perimeter wall cavity. Fungal growth, excess moisture, significantly damaged wood wall framing, and sheathing was observed. PBS also observed water damaged wood wall and roof truss framing and wall sheathing at the top of the same wall. According to District personnel, the water source is believed to originate at the roof scupper located in the same location on the exterior of the wall. Similar damage was observed in the exploratory opening at the southeast corner of Classroom 208. Water damage was visible on carpet and the gypsum wallboard where the moveable demising wall meets the perimeter wall. According to District personnel, the water source is believed to originate at the roof scupper also located on the exterior wall just outside of this classroom. Moisture testing at both locations revealed that wood wall framing and insulation were saturated wet or greater than 40% wood moisture equivalent (WME). This is an indication that active water intrusion is occurring at each location. PBS recommends determining the specific source of water intrusion and correcting those deficiencies to prevent future fungal growth and building damage. Fungal growth in buildings has the potential to cause adverse health impacts to sensitive or immune-compromised individuals. Disturbance of the fungal contaminated materials has the potential to cause inhalation and dermal exposures to workers and occupants. PBS recommends trained and experienced personnel using appropriate personal protective equipment (PPE) and engineering controls are used to remove the fungal contaminated components in accordance with the current industry guidelines. Industry guidelines to follow include but are not limited to: EPA’s document “Mold Remediation in Schools and Commercial Buildings.” Based on our observations it is our opinion that structure damage is present in both locations. PBS recommends that a structural engineer evaluate, post abatement/demolition, the condition of the wall and roof framing at each location to determine if its structural integrity has been compromised. It is our understanding that other roof scuppers have leaked and caused building damaged. Additionally, it is our opinion that further study of all remaining roof scuppers on campus is warranted.



2 November 20, 2019


2 INTRODUCTION PBS’ work scope included water intrusion investigations at the Sultan Middle School Library and Classroom 208/209 to determine potential building impacts. Our scope included cutting exploratory openings to look for evidence of fungal growth and excess moisture at three (3) locations where water intrusion was known to have occurred. Destructive investigations were not performed on the roof assembly or exterior building envelope. 2.1 Limitations This study was limited to the observations and locations indicated to determine the general absence or presence of suspect fungal growth and water intrusion. The site as a whole may have other or similar concerns that were not characterized by this study. Further study is warranted. The findings and conclusions of this work are not scientific certainties but, rather, probabilities based on professional judgment concerning the significance of the data gathered during the course of this investigation. PBS is not able to represent conditions on the site beyond those conditions detected or observed at the time of the investigation. This investigation was limited in scope and was not intended to be an exhaustive study but, rather, a screening of known water intrusion and potential fungal growth at two locations. 3 DISCUSSIONS OF FINDINGS On November 13, 2019, PBS conducted a limited interior fungal assessment and water intrusion investigation of a portion of the Sultan Middle School building located at 301 High Street, Sultan, WA. This included the perimeter wall at the northeast corner of the Library and the south perimeter wall at Classrooms 208/209. The single-story building is owned by the Sultan School District and used as a middle school. The building is slab on grade, wood framed, with a slightly pitched membrane roofing system. Exterior walls are primarily clad with brick veneer and a metal framed window and door systems. The interior is finished with carpet, sheet vinyl, gypsum wallboard and suspended ceilings. The Library has book shelving at most perimeter walls. 3.1 Visual Assessment A PBS industrial hygienist conducted a visual assessment and moisture testing at approximately three (3) exploratory locations. See Appendix A, Figure 1 for the exploratory locations. This included investigating inside perimeter wall cavities and above suspended ceilings. PBS assessed and documented conditions related to suspect fungal growth and excess moisture. Representative photographs of pertinent observations are presented in Appendix B. The following is a summary of our observations: Library Exploratory L-1

• Suspect fungal growth, excessive moisture and significant framing damage were observed in the wall cavity and on the back of the casework in the northeast corner of the Library. The exploratory opening is located approximately 1-foot above floor level at the northeast perimeter wall behind the bookshelf. See Appendix A, Figure 1, Location ID - L1. See Appendix B, Photographs 1 and 2.

The wall construction behind the bookshelf consists of gypsum wallboard, plastic sheeting, fiberglass insulation, wood wall framing, oriented strand board (OSB) exterior sheathing and brick veneer as the exterior cladding. The fungal growth was observed on the exterior side of the interior gypsum wallboard as a black and greenish discoloration. See Appendix B, Photo 3. The fiberglass insulation was dripping wet. The wood 2”x6” wall framing and OSB exterior sheathing was black in color, saturated wet and falling apart with hand pressure. See Appendix B, Photo 4.



3 November 20, 2019


• Suspect fungal growth, excess moisture and framing damage were observed at the top of the wall at location L-1 above the suspended ceiling. The wall construction above the suspended ceiling consists of plastic sheeting, fiberglass insulation, wood wall framing, OSB exterior sheathing and brick veneer as the exterior cladding. The roof underdeck consists of engineered wood roof trusses and plywood sheathing. Water damage and fungal growth was observed on the wood 2”x6” wall framing, engineered wood roof truss and the OSB exterior sheathing. See Appendix B, Photo 5 and 6. Moisture levels of these wood components next to the roof truss were approximately >40%. The plywood roof underdeck at the truss was approximately 23% moisture content.

• Wet concrete foundation wall was observed beneath the brick veneer on the exterior of the building at the northeast corner of the Library. See Appendix B, Photo 7. This is an indication that water is actively flowing from behind the brick veneer at the base of the wall. The foundation wall was visibly wet across the span of approximately 15’.

Corridor Exploratory L-2

• This opening was located approximately 2-feet above floor level in the corridor east of the Library. Appendix A, Figure 1, Location ID – L2. See Appendix B, Photo 8. No suspect fungal growth, excessive moisture or water damage was observed in the wall cavity.

The wall construction consisted of two layers of gypsum wallboard, fiberglass insulation, wood wall framing, and gypsum wallboard (Library side). Moisture levels of the wood components were approximately 7%-10%, similar to background “dry” materials. Moisture levels of the gypsum wallboard components were approximately 0.3%-0.4%, similar to background “dry” materials. No fungal growth was observed. Some rusting of the fasteners was observed which is an indication of previous elevated moisture. See Appendix B, Photo 9.

Classroom 208 Exploratory L-3

• This opening was located approximately 2-feet above floor level at the southeast perimeter wall near the moveable demising at Classroom 208. See Appendix A, Figure 1, Location ID – L3. Suspect fungal growth, excessive moisture and significant framing damage were observed in the wall cavity. The wall construction consists of gypsum wallboard, plastic sheeting, fiberglass insulation, wood wall framing, OSB exterior sheathing and brick veneer as the exterior cladding. The fungal growth was observed on the exterior side of the interior gypsum wallboard as a purple-ish and black discoloration. See Appendix B, Photo10. The fiberglass insulation at the base of the wall was dripping wet. The wood 2”x6” wall framing and OSB exterior sheathing was black in color, saturated wet and falling apart with hand pressure. See Appendix B, Photo 11.

• Suspect fungal growth and framing damage were observed at the top of the wall in Classrooms 208 and 209 at location L-3 (above the suspended ceiling tiles). See Appendix B, Photo 12 and 13.

The wall construction above the suspended ceiling consists of plastic sheeting, fiberglass insulation, wood wall framing, OSB exterior sheathing and brick veneer as the exterior cladding. The roof underdeck consists of engineered wood roof trusses and plywood sheathing. Fungal growth and water damage were observed on the wood 2”x6” wall framing, the engineered wood roof truss, OSB exterior sheathing and the roof plywood underdeck. Moisture levels of the wood components were



4 November 20, 2019


approximately 7%-10%, similar to background “dry” materials.

• Wet concrete foundation wall was observed beneath the brick veneer on the exterior of the building at the south perimeter wall of Classroom 208/209. This is an indication that water is actively flowing from behind the brick veneer at the base of the wall. The foundation wall was visibly wet across the span of approximately 2’.

3.2 Moisture Testing PBS used a moisture meter and infrared camera to help identify excessive moisture in building materials during this assessment. Moisture Meter PBS used the Delmhorst TechCheck Plus penetrating moisture meter to evaluate in-situ moisture levels of the exterior wall and roof underdeck components. In general, gypsum wall board with a sustained gypsum moisture equivalent (GME) of 0.5% or greater is capable of supporting fungal growth, given adequate time. Also, wood products with a sustained wood moisture equivalent (WME) of 15% or greater are capable of supporting fungal growth, given adequate time. GME of 0.5% and WME of 15% is the lower probable limit for most fungal species to amplify on these building materials. Some fungi can begin to amplify in 24-48 hours given the correct environmental conditions (i.e. temperature, moisture and food sources). Moisture readings were collected from accessible gypsum wall boards, wood framing, plywood underdeck and cementitious backer board at a total of six (6) locations. Moisture readings ranged from 0.3% to 0.4% GME and 7% to >40% WME. Infrared Camera Survey PBS’ Thermographer used a FLIR B-300 Infrared (IR) Camera to briefly scan the interior side of the visually accessible perimeter walls from the ground level. The intent of the survey was to identify unusual thermal signatures or anomalies that may be indicative of excess moisture. No anomalies were observed. 4 CONCLUSIONS AND RECOMMENDATIONS This limited investigation was initiated due to concerns of water intrusion caused by leaking roof drain scuppers. Based upon PBS’ limited observations, PBS concludes and recommends the following:

• Fungal growth and active water intrusion were occurring at the perimeter wall beneath the roof drain scuppers in Classroom 208/209 and the northeast corner of the Library. Significant framing damage was observed. The water source is believed to be roof drain scupper leakage. The wall should be opened up to determine complete extent of damage. PBS recommends removal of all fungal impacted gypsum wallboard, carpet, wall insulation, book shelfing and damaged wood framing. The wall cavity should be thoroughly cleaned. PBS recommends a building envelope professional investigate to determine moisture sources that may have caused the observed fungal growth and recommend proper repairs. Roof drain scuppers throughout campus should be evaluated for similar conditions.

• The wood wall framing, and the engineered wood roof trusses appeared to be water damaged at each location (Library and Classroom 208/209). PBS recommends a structural engineer investigate these locations to determine if the structural integrity of these components has been compromised.

• Disturbance of fungal contaminated building materials has the potential to expose workers and



5 November 20, 2019


occupants. PBS recommends trained and experienced personnel using appropriate PPE and engineering controls are used to remove and dispose of the contaminated materials. All fungal removal should be conducted in accordance with industry standards for such work, including but not limited to, EPA’s recommended guidelines - Mold Remediation in Schools and Commercial Buildings and the latest version of IICRC S520 Standard and Reference Guide for Professional Mold Remediation or the New York City Guidelines on Assessment and Remediation of Fungi in Indoor Environments. PBS recommends a contractor submit a work plan to an experienced industrial hygienist to help ensure proper health and safety protocols are used to protect the building and its occupants during remedial activities. Fungi and fungal particulate have the potential to cause adverse health impacts to sensitive or immune-compromised individuals. Disturbance of the fungal contaminated materials has the potential to cause inhalation and dermal exposures to workers and occupants and cause adverse health impacts.

Report Prepared by: PBS Engineering and Environmental Inc., Gregg Middaugh Sr. Project Manager Industrial Hygiene Group

APPENDIX A Exploratory Location Plan

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APPENDIX B Photographs



1 November 20, 2019


Location L1 – Northeast corner of Library.

Location L1 – Location of Library exploratory.



2 November 20, 2019


Location L1 (Library) - Fungal (black and greenish discoloration)

contaminated gypsum wall board behind bookshelf.

Location L1 – 2”x6” wood wall framing at base of wall - saturated wet, fungal

contaminated, degraded and falling apart.



3 November 20, 2019


Location L1 (Library) – Degraded, wet and moldy OSB exterior sheathing

behind fiberglass insulation at top of wall.

Location L1 (Library) – Water damaged engineered wood roof truss.



4 November 20, 2019


Location L1 (Library) - Exterior roof drain, and wet concrete foundation wall.

Location L2 (Corridor east of Library) – Location of exploratory opening.



5 November 20, 2019


Location L2 (Corridor east of Library) - Wall cavity with some fastener rust

occurring. No fungal growth or excess moisture was observed.

Location L3 (Classroom 208) – Purple and black discoloration on exterior

side of interior gypsum wallboard. No excess moisture in the gypsum.



6 November 20, 2019


Location L3 (Classroom 208) – Degraded, wet and moldy wood wall

framing and sheathing in cavity at base of wall.

Location L3 (classroom 208) - Fungal contaminated and degraded OSB at

top of wall.



7 November 20, 2019


Location L3 (classroom 209) - Fungal contaminated and water damaged

OSB at top of wall.


Sultan, Washington

BOARD AGENDA ITEM: Executive Session


1. National Security2. Real Estate Acquisition3. Negotiations on a publicly bid contract4. Complaints/charges against an employee5. Review the performance of a public employee6. Qualifications of a candidate for elective office7. Legal counsel or enforcement actions litigation or potential litigation



Sultan, Washington

BOARD AGENDA ITEM : Adjournment



01.13.20 study session - esp.sultan.k12.wa.us

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