1-04 PCLS Sumner Library Bid Set - Geotech.pdf

PDF 2 MB Posted Apr 13, 2026

Attached to: Sumner Library Construction - Pierce County Library System
Solicitation number: 81325
Issued by: Pierce County, Washington

About this file

Written by GovTribe AI · Apr 17, 2026

This document is a geotechnical and site preparation specification set for the Pierce County Library System's Sumner Library construction project located at 15126 Main Street East, Sumner, Washington. The project encompasses the construction of a 17,133 square foot public library facility on a 73,573 square foot parcel and includes removal of preload surcharge, site development conforming to City of Sumner zoning regulations and East Main Street design guidelines, construction of parking areas, utility extensions and connections, and a fully enclosed conditioned building with structural, architectural, mechanical, electrical, plumbing, fire protection, and life safety systems. The bid set drawings indicate comprehensive site and building details including floor plans, mechanical systems, and specialized subslab vapor mitigation requirements. The drawings reference multiple specification sheets and details related to combustible gas detection and vapor depressurization systems.

The geotechnical specifications detail vapor mitigation system requirements including 20 mil Drago Wrap soil gas barriers, 6-inch-diameter perforated PVC subslab depressurization piping wrapped with 12-ounce non-woven geotextile fabric, and Radon Away Model RP265 in-line fans with 120V 60Hz 15A outlets. Combustible gas monitoring specifications require 18 hardwired monitors for the approximately 900 square feet ground floor segments, positioned minimum 1 foot below the ceiling and 3 feet from corners. Vapor pressure monitoring points must be installed at the rate of one per 5,000 square feet of ground floor. All seams require integrity testing prior to concrete slab placement, and installation temperatures must remain between 40 and 110 degrees Fahrenheit. The specifications emphasize compliance with manufacturer specifications for all vapor barrier materials, geotextile fabrics, sealants, and monitoring equipment.

View the file

Other files

File	Type	Posted
11-02 PCLS Sumner Library - Civil - Bid Set.pdf	PDF	Apr 13, 2026
4-10 PCLS Sumner Library Bid Set - Lighting.pdf	PDF	Apr 13, 2026
8-01 PCLS Sumner Library Bid Set - General.pdf	PDF	Apr 13, 2026
6-08 PCLS Sumner Library Bid Set - Mechanical.pdf	PDF	Apr 13, 2026
7-09 PCLS Sumner Library Bid Set - Electrical.pdf	PDF	Apr 13, 2026
2-11 PCLS Sumner Library Bid Set - Plumbing.pdf	PDF	Apr 13, 2026
10-06 PCLS Sumner Library Bid Set - Architectural.pdf	PDF	Apr 13, 2026
13-00 PCLS Sumner Library Bid Set - Combined.pdf	PDF	Apr 13, 2026
9-05 PCLS Sumner Library Bid Set - Landscape.pdf	PDF	Apr 13, 2026
5-12 PCLS Sumner Library Bid Set - Fire Protection.pdf	PDF	Apr 13, 2026
3-07 PCLS Sumner Library Bid Set - Structural.pdf	PDF	Apr 13, 2026
12-PCLS Sumner Library Bid Set Specifications.pdf	PDF	Apr 13, 2026

Show all 12

On GovTribe

Work with this file

Download the original file
Contacts named in this file
Similar government files
Ask GovTribe AI about this file

Try for free Login

Text version

The file's text, extracted by GovTribe without its formatting.

A301

A706

A300

7'-1 1/2" 18'-0" 7'-0" 18'-10" 17'-5" 17'-5" 17'-5" 16'-5" 16'-6" 26'-6" 27'-10"

190'-5 1/2"

'-9

'-0

'-6

'-8

7'-

A400

A401

A402

A403

A402

COPY/PRINT AREA

EAVE ABOVE

SUNSCREEN

ABOVE

SUNSCREEN

ABOVE

CHILDREN'S

PROGRAM ROOM

TEEN STUDY

ROOM

TEENS

STORAGE

TELECOM

OFFICE

STUDY 1

STUDY 2

COMMUNITY

ROOM

COLLECTION

N VESTIBULE

PUBLIC MEETING

MECHANICAL

OFFICE 1

STAFF RR

CUSTODIAL

MEN'S

RESTROOM

WOMEN'S

RESTROOM

WORKROOM

S VESTIBULE

ADULTS

SENSORY RM

CHILDREN'S

RESTROOM

WELLNESS RM

RESTROOM

6w W6a.F1

6w W5d.F1

0.00..........6w W6a.F1

A933

A931

A932

A934

A935

A500

A715

A716

A404

6w W5a.F1

0' - 0"

A435

A705 11

A706

10 11

EDGE OF DOUBLE

HEIGHT SPACE ABOVE

0.00 W40b B 6w

A702 39

A703 3

A703 7

A702

A703 11

A704 13

A705 1

A704

11A704 1

A705

A702 16

A702 2

1.7

1.3

W40d B 4w

W40a C 44wd

6w W5d.F1

6w W4d.F1

W40e 6w

6w W5a.F1

W40f B 4w

W40a B 4w

W40f B 4w

W50a 6w

W40a B 4w

W50h 6w

W40a B 6w

W40e B 6w

W40d B 4w

W40f B 4w

W50d 6w

W50d B 6w

W40e C 6w

W40a B 44wd

A404

A705

A706 1

A704

87 A705

7B 107C

8B108C

151 134

103B

152A

W40a B 4w

W40a C 6w

W50c 6w

W40f B 4w

CUSTOM STAINLESS STEEL

FLOOR INLAY W/ ETCHED

DETAILS AT PERIMETER IN

CONC-4

AESS COLUMNS, COLOR

COLOR TO MATCH PNT-1

AESS COLUMNS; COLOR

TO MATCH PNT-1

C A

F G FF

W40a B 4w

CC DD

OFFICE 2

EXTERIOR

COLUMN; TYP.

BUILT-IN MAGENTIC WALL

AND COUNTER

BUILT-IN WALL

SHELVING

F2 1' - 1"

0' - 0"

SHELVING TYP.

ELECTRICAL

RESTROOM

STORAGE

BOOK-1

A7035

7/8

STORAGE

103A

BREAK ROOM

FIRE SPRINKLER

A703

A710A710

LADDER UP TO MECH

WELL CATWALK

A934

1'-

3/ 8"

2'- 2"

Johnston Architects, LLC 3131 Western Ave, Suite 510 Seattle, WA 98121 t 206.523.6150 f 206.523.9382

SHEET TITLE

SHEET NO.

Drawn Checked

S U

M N

A R

R, W A

MM104

AKD

CJP

DRAWING ISSUE

# DATE DESCRIPTION

2026/03/25 BID SET

Pr in te d B y:

A n d y.

D ay

P ri n t

D at e:

Fi le

P at h

M -R

\P ie rc eC

-1 \P ie rc eC

-1 -0

\F ig u re s\ C

A D

Pi er ce C

-1

-0

-M M

-R

W -P

E- St m p .d w g

703 Broadway Street Suite 650 Vancouver, WA 98660

(SCALE IN FEET)

10 20

EXPLANATION

PROPOSED COMBUSTIBLE GAS MONITORING LOCATION

APPROXIMATELY 900 SQUARE FEET

NOTES

1. ONE COMBUSTIBLE GAS MONITOR PER 900 SF OF GROUND FLOOR (18).

2. EACH COMBUSTIBLE GAS MONITOR SHALL BE HARDWIRED INTO THE

CENTRAL ALARM CONTROL PANEL.

3. COMBUSTIBLE GAS MONITORS SHALL BE INSTALLED PER MANUFACTURES

SPECIFICATIONS.

4. MONITOR SHALL BE A MINIMUM OF 1 FOOT BELOW THE CEILING AND 3

FEET FROM ANY CORNER.

5. SEE DETAIL 12/MM106 FOR COMBUSTIBLE GAS METER.

6. MOUNT 1 FOOT BELOW CEILING UNLESS OTHERWISE NOTED.

COMBUSTIBLE GAS

DETECTOR LOCATIONS

NOTES:

1. VENT PIPE SHALL SLOPE TO MATCH FINAL BUILDING SLOPE.

2. GRAVEL TO BE COMPACTED WITH A WALK-BEHIND PLATE COMPACTOR WITHIN 5 HORIZONTAL FEET OF PIPE.

3. VAPOR BARRIER TO BE 20 MIL DRAGO WRAP SOIL GAS BARRIER OR APPROVED ALTERNATIVE.

4. PVC PIPE TO HAVE MINIMUM OF 10 INCHES OF DRAINAGE ROCK COVER.

5. PVC PIPE TO BE WRAPPED WITH 12- OUNCE NON-WOVEN GEOTEXTILE FABRIC TO PREVENT SILT INTRUSION.

6. WASHED ROCK, MINIMUM 7/8" (LESS THAN 10% PASSING NO. 10 SIEVE).

7. 6-INCH-DIAMETER PERFORATED PVC (ASTM D-2729 SLOTTED), 3 ROWS OF 5/8" INCH HOLES ON 5-INCH

CENTERS, 120 DEGREES APART.

DRAINAGE ROCK

(SPECIFIED BY OTHERS)

12-OUNCE NON WOVEN

GEOTEXTILE

20 MIL DRAGO WRAP SOIL GAS

BARRIER OR ENGINEER-APPROVED

ALTERNATIVE

CONCRETE SLAB (SPECIFIED BY OTHERS)

12-OUNCE NON WOVEN

GEOTEXTILE

WASHED ROCK (7/8" MIN.)

12-OUNCE NON WOVEN GEOTEXTILE

6" DIAMETER PERFORATED VENT PIPE PVC

OR ENGINEER-APPROVED EQUIVALENT

6" (TYP. ON ALL SIDES)

4" MIN.

CONDUIT OR PIPE PENETRATION

4" DRAINAGE ROCK

(SPECIFIED BY OTHERS)

12-OUNCE NON WOVEN GEOTEXTILE

20 MIL DRAGO WRAP SOIL GAS

BARRIER OR ENGINEER-APPROVED

ALTERNATIVE

CONCRETE SLAB (SPECIFIED BY OTHERS)

12-OUNCE NON WOVEN GEOTEXTILE

DRAGO WRAP PIPE BOOT

16" MIN.

DRAGO SEAL

TAPED SEAM

NOTES:

1. DRAGO SEAL TAPE OF ENGINEER-APPROVED ALTERNATIVE.

2. INSTALLATION TEMPERATURES 40 FAHRENHEIT MINIMUM AND 110 FAHRENHEIT MAXIMUM.

4" DRAINAGE ROCK

(SPECIFIED BY OTHERS)

12-OUNCE NON

WOVEN GEOTEXTILE

20 MIL DRAGO WRAP

SOIL GAS BARRIER OR

ENGINEER-APPROVED

ALTERNATIVE

CONCRETE SLAB (SPECIFIED BY OTHERS)

12-OUNCE NON

WOVEN GEOTEXTILE

MIN. 12"

OVERLAP

NOTES:

1. VAPOR BARRIER SEAM TO BE TAPED WITH DRAGO SEAL TAPE OF APPROVED ALTERNATIVE.

2. APPLY DRAGO SEAL TAPE PER MANUFACTURE'S SPECIFICATION. CONTRACTOR TO USE HAND

ROLLER TO ENSURE ADEQUATE CONTACT BETWEEN TAPE AND MEMBRANE.

3. ALL SEAMS TO BE INTEGRITY TESTED BY NV5 SMOKE MACHINE OR APPROVED ALTERNATIVE) PRIOR

TO PLACEMENT OF CONCRETE SLAB.

4. INSTALLATION TEMPERATURES 40 FAHRENHEIT MINIMUM AND 110 FAHRENHEIT MAXIMUM.

DRAGO SEAL TAPED

SEAM

CONCRETE

FOOTING/COLUMN

CAP

20 MIL DRAGO WRAP

SOIL GAS BARRIER OR

ENGINEER-APPROVED

ALTERNATIVE

DRAGO TACK TAPE

DRAGO SEAL TAPE

BATTEN BAR

(STEGO TERM

BAR 1.125")

3" MIN.

NOTES:

1. CLEAN CONCRETE PER MANUFACTURE'S SPECIFICATION,

ALLOW CONCRETE TO DRY THEN APPLY DOUBLE SIDED

STICKY ADHESIVE TAPE (DRAGO TACK TAPE OR

ENGINEER-APPROVED ALTERNATIVE.

2. PLACE BARRIER AGAINST CONCRETE AND ABOVE DOUBLE

SIDED STICKY ADHESIVE TAPE.

3. ATTACHE BATTEN BAR (STEGO TERM BAR OR

ENGINEER-APPROVED ALTERNATIVE) MINIMUM OF 3

INCHES FROM CONCRETE EDGE.

4. USE DRAGO SEAL TAPE TO TAPE SEAM TO CONCRETE.

5. HAND ROLL THE TAPED CONNECTION TO THE

CONCRETE PER MANUFACTURE'S SPECIFICATION.

6. INSTALLATION TEMPERATURES 40 FAHRENHEIT MINIMUM

AND 110 FAHRENHEIT MAXIMUM.

FINISHED CONCRETE SLAB

SPECIFIED BY OTHERS

12-OUNCE NON WOVEN GEOTEXTILE

20 MIL DRAGO WRAP

SOIL GAS BARRIER OR

ENGINEER-APPROVED

ALTERNATIVE

NOTES:

TERMINATION OF VENT RISER SHALL BE:

1. WRAP AND PROTECT ALL PIPING THROUGH CONCRETE SLAB

OR FLOOR.

2. ALL JOINTS SHALL HAVE A WATER TIGHT SEAL.

3. RISER TERMINATION MINIMUM OF 10 FEET ABOVE GRADE.

4. RISER MINIMUM OF 10 FEET FROM OPERABLE WINDOW,

BUILDING DOOR, OR BUILDING AIR INTAKE.

5. PLACARD TO BE PLACED EVERY 5 FEET ABOVE GRADE.

6. THE PLACARD WILL BE PLASTIC WITH ADHESIVE BACKING AND

THE LETTERS WILL BE A MINIMUM OF 3/8 INCH HIGH, WHITE,

AND PLACED ON A RED BACKGROUND.

7. 10 FEET MINIMUM CLEARANCE FROM ELECTRICAL EQUIPMENT.

8. RISER TERMINATION A MINIMUM OF 2 FEET AWAY FROM ANY

HORIZONTAL OBSTRUCTION.

9. TERMINATION OF VENT A MINIMUM OF 4 FEET FROM

PROPERTY LINE.

10. EACH OF THE SUB-SLAB DEPRESSURIZATION RISERS IS

IMPROVED WITH RADON AWAY MODEL RP265 IN-LINE FAN OR

APPROVED ALTERNATIVE.

11. EACH IN-LINE FAN SHALL BE INSTALLED 4 FEET ABOVE THE

CONCRETE SLAB.

12. PROVIDE 120V 60HZ 15A OUTLET WITH TAMPERPROOF COVER

ADJACENT TO EACH IN-LINE FAN.

CAUTION

METHANE IN PIPE.

NO SMOKING OR

ELECTRICAL EQUIPMENT

WITHIN 10 FEET

NOTE FOR PLACARD:

1. 3 INCHES HIGH X 4 INCHES WIDE.

2. PLASTIC WITH ADHESIVE BACKING.

3. 1/4-INCH-HIGH BLACK LETTERS ON

WHITE BACKGROUND.

4. SPACED AT 5' INTERVALS.

ROOF

PLACARD

BUILDING

WALL

COUPLING

VENT RISER CLAMP

OR STRAP (TYP.)

6" DIAMETER

SCH. 80 PVC

VENT RISER

CONCRETE SLAB

6" DIAMETER PERFORATED PVC SUBSLAB

VAPOR DEPRESSURIZATION PIPING

IN-LINE FAN

12-OUNCE NON

WOVEN GEOTEXTILE

20 MIL DRAGO WRAP SOIL

GAS BARRIER OR

ENGINEER-APPROVED

ALTERNATIVE

12-OUNCE NON WOVEN

GEOTEXTILE

6" DIAMETER SCH. 40

PVC

NOTES:

1. TERMINATION OF THE SUBSLAB VAPOR PRESSURE MONITORING POINT SHOULD BE IN A STANDARD

VALVE BOX (CHRISTY B1324 WITH BOLT-DOWN LOCKING COVER OR APPROVED ALTERNATIVE).

2. TERMINATION OF PEX PIPE WITH A 1/2" PEX FITTING BALL VALVE.

3. STAINLESS STEEL SCREEN INSTALLED IN 3/4" MINUS LAYER BELOW LINER.

4. A PLACARD MUST BE ATTACHED TO THE VALVE BOX STATING "VAPOR MONITORING STATION - DO

NOT BLOCK".

5. A SUBSLAB VAPOR PRESSURE MONITORING PINT SYSTEM SHALL BE PROVIDED AT THE RATE OF ONE

PER 5,000 SF OF GROUND FLOOR.

6. EACH VAPOR MONITORING PINT INSTALLED IN A 2-FOOT BY 2-FOOT BY 2 INCHES DEEP VALLEY

FILLED WITH WASHED ROCK MINIMUM 7/8" (LESS THAN 10% PASSING THE NO. 10 SIEVE).

1/2" DIAMETER PEX PIPE

TERMINATED WITH A 1/2" PEX

FITTING SHUT-OFF VALVE

4" DRAINAGE ROCK (SPECIFIED BY OTHERS)

12-OUNCE NON WOVEN GEOTEXTILE

20 MIL DRAGO WRAP SOIL GAS

BARRIER OR ENGINEER-APPROVED

ALTERNATIVE

CONCRETE SLAB

(SPECIFIED BY OTHERS)

WASHED ROCK

2' X 2' X 2" DEEP VAPOR POCKET FOR VMP

12" LONG 1/4" DIAMETER

STAINLESS STEEL SCREEN

WITH 1/2" PEX BARB FITTING

DRAGO SEAM

TAPE

VERTICAL CONDUIT SEAL (DETAIL)

HORIZONTAL CONDUIT SEAL

NOTE:

1. SEALING COMPOUND SHOULD CONSIST OF POLYWATER FST DAM

AND POLYWATER FST-250 PER MANUFACTURE'S REQUIREMENT

OR NV5-APPROVED ALTERNATIVE.

CONDUIT JOINT

SEALING COMPOUND

FOAM DAM

SLAB

CONDUIT

JOINT

FOAM DAMSEALING COMPOUND

FOAM DAM

METER BOX

DRAGO TACK

TAPE

DRAGO SEAL TAPE

NOTES:

1. CLEAN CONCRETE PER MANUFACTURE'S SPECIFICATION, ALLOW CONCRETE TO DRY THEN APPLY

DOUBLE SIDED STICKY ADHESIVE TAPE (DRAGO TACK TAPE OR ENGINEER-APPROVED ALTERNATIVE.

2. PLACE BARRIER AGAINST CONCRETE AND ABOVE DOUBLE SIDED STICKY ADHESIVE TAPE.

3. ATTACHE BATTEN BAR (STEGO TERM BAR OR ENGINEER-APPROVED ALTERNATIVE) MINIMUM OF 3

INCHES FROM CONCRETE EDGE.

4. USE DRAGO SEAL TAPE TO TAPE SEAM TO CONCRETE.

5. HAND ROLL THE TAPED CONNECTION TO THE CONCRETE PER MANUFACTURE'S SPECIFICATION.

6. INSTALLATION TEMPERATURES 40 F. MINIMUM AND 110 F. MAXIMUM.

BATTEN BAR

(STEGO TERM BAR)

DRAGO SEAL TAPE

BATTEN BAR

(STEGO TERM BAR)

12-OUNCE

NON WOVEN

GEOTEXTILE

12-OUNCE

NON WOVEN

GEOTEXTILE

20 MIL DRAGO SOIL GAS BARRIER OR

ENGINEER-APPROVED ALTERNATIVE

NOTES:

1. TERMINATION OF THE SUBSLAB VAPOR PRESSURE MONITORING POINT SHOULD BE IN A STANDARD

VALVE BOX (CHRISTY B1324 WITH BOLT-DOWN LOCKING COVER OR APPROVED ALTERNATIVE).

2. TERMINATION OF PEX PIPE WITH A 1/2" PEX FITTING BALL VALVE.

3. STAINLESS STEEL SCREEN INSTALLED IN 3/4" MINUS LAYER BELOW LINER.

4. A PLACARD MUST BE ATTACHED TO THE VALVE BOX STATING "VAPOR MONITORING STATION - DO

NOT BLOCK".

5. A SUBSLAB VAPOR PRESSURE MONITORING PINT SYSTEM SHALL BE PROVIDED AT THE RATE OF ONE

PER 5,000 SF OF GROUND FLOOR.

6. EACH VAPOR MONITORING PINT INSTALLED IN A 2-FOOT BY 2-FOOT BY 2 INCHES DEEP VALLEY

FILLED WITH WASHED ROCK MINIMUM 7/8" (LESS THAN 10% PASSING THE NO. 10 SIEVE).

1/2" DIAMETER PEX PIPE

TERMINATED WITH A 1/2" PEX

FITTING SHUT-OFF VALVE

4" DRAINAGE ROCK (SPECIFIED BY OTHERS)

12-OUNCE NON WOVEN GEOTEXTILE

20 MIL DRAGO WRAP SOIL GAS

BARRIER OR ENGINEER-APPROVED

ALTERNATIVE

CONCRETE SLAB

(SPECIFIED BY OTHERS)

12" LONG 1/4" DIAMETER

STAINLESS STEEL SCREEN

WITH 1/2" PEX BARB FITTING

NOT TO SCALEMM105

4 VAPOR BARRIER TERMINATION

NOT TO SCALEMM105

1 TYPICAL CROSS SECTION

NOT TO SCALEMM105

2 VAPOR BARRIER PENETRATION

NOT TO SCALEMM105

3 VAPOR BARRIER SEAM

VAPOR MITIGATION

SYSTEM VAPOR

BARRIER DETAILS

NOT TO SCALEMM105

8 SUBSLAB VAPOR DEPRESSURIZATION SYSTEM RISER

NOT TO SCALEMM105

7 SUBSLAB VAPOR PRESSURE MONITORING POINT ABOVE MEMBRANE DETAIL

NOT TO SCALEMM105

9 CONDUIT SEAL

Johnston Architects, LLC 3131 Western Ave, Suite 510 Seattle, WA 98121 t 206.523.6150 f 206.523.9382

SHEET TITLE

SHEET NO.

Drawn Checked

S U

M N

A R

R, W A

MM105

AKD

CJP

DRAWING ISSUE

# DATE DESCRIPTION

2026/03/25 BID SET

Pr in te d B y:

A n d y.

D ay

P ri n t

D at e:

Fi le

P at h

M -R

\P ie rc eC

-1 \P ie rc eC

-1 -0

\F ig u re s\ C

A D

Pi er ce C

-1

-0

-D

S-

-R

W -P

E- St m p .d w g

703 Broadway Street Suite 650 Vancouver, WA 98660

NOT TO SCALEMM105

5 INTERIOR COLUMN VAPOR BARRIER

NOT TO SCALEMM105

6 SUBSLAB VAPOR PRESSURE MONITORING POINT BELOW MEMBRANE DETAIL

File details come from the government source that posted it. Updated Apr 17, 2026.