W9126G19B3286_DIV_02_Specifications_Appendix_A_Abatement_Guidelines_Part_2_of_2.pdf

EP 1110-1-11

15 JUL 92

Part 2, Setup Details

FRAME AIR-LOCK WITH VERTICAL STUDS

SPACED A MAXIMUM OF 24 IN. ON CENTER

EXCEPT AT 3'-0' OPENINGS. PROVIDE

HORIZONTAL FRAMING MEMBERS AT TOP

AND BOTTOM.

COVER WALLS AND ROOF FRAMING WITH

PLYWOOD AND COVER WITH 2 LAYERS OF

6 MIL POLYETHYLENE.

TAPE ALL JOINTS.

v 5'-0"

/] MIN.

Air lock

1 . Establish work area so that unauthorized entry is prevented; see sheet 1 1. Construct a wood frame.

Install one layer of 6-mil polyethylene sheeting to structural members and two layers to the floor. Seal all edges of sheeting to wall, ceiling, and floor surfaces with duct tape.

2. Install triple flaps of 6-mil polyethylene sheeting at both doorways.

3. Install danger signs on each side of air lock area;

see sheet 1 1 .

4. Before leaving work area, remove outer suit. Place in a plastic bag; see sheet 9.

5. Enter air lock. Wet wipe respirator and wash hands with clean water from portable sprayer. Remove respirator, and place in a clean plastic bag. Proceed to shower, where inner suit may be removed.

:an'fii'Ciw.Oc&:r8CI'Iir8fnents:~'Aft:er,aii~ierrleni is · ;~ryjp(etl@;;preparecareaior tinatctearaijcei; :;· .. ··•·· ...

·'Colltra~r··:~nd CofrtJ:aCt:ing•officerwill pertify Visuat· ~~~ectlon;ot\-Vort{ area on·5heet'19,.'C8tilffeation of.

?Fifiiit.f;iealilt,i£inii}nsualin~i0n:~ eontraCt: '· ... c · · ..

~esigoee{sj{wiit: conduct ·final air-Ciearancemcinitoring :'as;requlrtld'tiy the contraCt. Remove:contaim11erirarea 'upon:u\Sttuetions from the comracting.offfcer;'and · treat·'as asbestos~contaminated:material; see Sheets 9 "aiic1.~14 .• :.:· ., · ·.. ···· · · ·_ ..

-31 - Setup Detail

Sheet 1

VIEWING ------

INSPECTION 11 ---.,.-11

WINDOW I I 1 : ::

11 1 1 II

~_1:_=.__::_::_-:._{.!

DUCT

EP 1110-1-11

15 JUL 92

CARPET

Installation of critical barrier and full containment area (for carpeted floors)

1. Establish work area so that unauthorized entry is prevented; see sheet 11. Eliminate airflow into containment area by isolating all supply and return air ducts from mechanical system. Lock doors and windows not required for access.

2. Install 6-mil polyethylene critical barriers over all windows, doors, wall openings, electrical outlets, etc.

Secure with duct tape on all sides. HEPA vacuum furniture, fixtures, and equipment and remove from or protect in containment area, as specified by the contract.

3. Install first layer of 6-mil polyethylene on floor, extending the polyethylene 18 inches up wall. Secure with duct tape. -

4. Install 0.5-inch plywood in order to protect 6-mil polyethylene underlay.

5. Prepare area as follows: turn off electrical power and remove light fixtures. Protect ceiling as required.

HEPA vacuum plywood and walls.

6. Protect wall surface with 6-mil polyethylene from floor to ceiling where walls are not to be abated.

Install viewing inspection windows, where feasible.

7. Place 6-mil polyethylene on top of plywood, extending polyethylene 1 8 inches up wall.

8. Install HEPA filter unit and duct work; see sheet 8.

9. Prepare door into decontamination or load-out unit.

See sheet 22 for decontamination unit and sheet 20 for load-out unit. Doors that swing into the work area must be removed from hinges.

Final clearMce requirements. After abatement has been completed, see sheet 16 for final clearance requirements.

-32- Setup Detail

Sheet 2 l VIEWING c -,.:-_-_-,--i-1

INSPECTION iiI 1 II

WINDOW 1 11 I II

Ill I II

!-~~_?:_=_=-_=--JJ

DUCT

EP1110-1-11

15 JUL 92

Installation of critical barrier and full containment area (for hard floor surfaces)

1. Establish work area so that unauthorized entry is prevented; see sheet 1 1. Eliminate airflow into containment area by isolation of all supply and return air ducts from mechanical system. Lock doors and windows not required for access.

2. Install 6-mil polyethylene critical barriers over all windows, doors, wall openings, electrical outlets, etc.

Secure with duct tape on all sides. HEPA vacuum furniture, fixtures, and equipment and remove from or protect in containment area, as specified by the contract.

3. Install first layer of 6-mil polyethylene on floor, extending the polyethylene 1 8 inches up wall. Secure with duct tape.

4. Protect wall surface with 6-mil polyethylene from floor to ceiling. Install view inspection windows, where feasible.

5. Prepare area as follows: turn off electrical power and remove light fixtures. Protect ceiling as required.

HEPA vacuum floor and walls.

6. Install top layer of 6-mil polyethylene.

7. Install HEPA filter unit and duct work; see sheet 8.

8. Prepare door into decontamination unit or load-out unit; see sheet 22 for decontamination unit and sheet 20 for load-out unit. Doors that swing into the work area must be removed from hinges.

Final clearance requirements. After abatement has been completed, see sheet 17 for final clearance requirements.

-33- Setup Detail

Sheet 3

I

Installation of critical barrier and full containment area (for vinyl tile floors)

1 . Establish work area so that unauthorized entry is prevented; see sheet 1 1. Eliminate airflow into containment area by isolating all supply and return air ducts from mechanical system. Lock doors and windows not required for access.

2. Install 6-mil polyethylene critical barriers over all windows, doors, wall openings, electrical outlets, etc.

Secure with duct tape on all sides. HEPA vacuum furniture, fixtures, and equipment and remove from or protect in containment area, as specified by the contract.

3. Prepare area as follows: turn off electrical power and remove light fixtures. Protect ceiling as required.

HEPA vacuum floors and walls.

4. Protect wall surface with 6-mil polyethylene from floor to ceiling. Install viewing inspection windows, where feasible.

5. Install HEPA filter unit and duct work; see sheet 8.

6. Prepare door into decontamination unit or load-out unit; see sheet 22 for decontamination unit and sheet 20 for load-out unit. Doors that swing into the work area must be removed from hinges.

-34-

Sheet 4

Single bulkhead containment area

1 . Establish work area so that unauthorized entry is prevented; see sheet 11. Construct a structural frame for a bulkhead wall and an air lock. See sheet 1 for air lock requirements other than those identified in note 1 of this drawing. Bulkhead is to be parallel to the item requiring abatement. Attach structural frame to walls, floor, or ceiling as necessary for stability. Cover the frame with one layer and the floor with two layers of 6-mil polyethylene sheeting, sealing edges of polyethylene to walls, ceilings, and floor surfaces with duct tape. Install viewing inspection windows, where feasible.

2. Seal with duct tape all penetrations (typical) such as pipes, electrical conduit, or ducts.

3. Install triple 6-mil polyethylene flaps at both doorways. Place portable sprayer with clean water, disposable towels, and prelabeled disposal bag in air lock.

4. Install danger signs on outside of containment area; see sheet 11.

5. Install HEPA vacuum. Extend hose into mini-containment area for general vacuuming, negative air, and cleaning of disposable suit.

6. Accumulate all loose materials for disposal, and place in approved container; see Sheet 9. Apply labels; see sheet 14. Adequately wet clean all wall, floor, tool, and equipment surfaces.

7. Abatement worker must wear two disposable suits. Remove outer suit in work area and place in a plastic bag; see sheet 9. Enter air lock.

8. In air lock, wet wipe respirator and wash hands with clean water from portable sprayer. Remove respirator and place in clean plastic bag. Proceed to remote shower where inner suit may be removed.

Final clearance requirem$flts~'Atter abate~~~t;~~ /\. ·.

completed, prepare aret1Jor firiat cl~arah,e~t ::;:; , <\::( Contract(}r and, Con~racting Offlcer.'Wilt9~rtif~/yis~~~ inspection of W(}:~~?$re~:·on s~et 1p; .. Fif!!irc~~ Final Cieanin(l ar/iJ VisiJIJI~ns}iectiOt?~: ~~n~ia ...

applv.tockdown ericapsolant. c(,ntra~t<ie~g: ····.·.········ ..••..

conduct final air;cJearapce tnf,lriitdrin(J, a~.f~~Uir~ij;~v :•·::

the.contract~'Remove containme~t·at~~u~~~/'fJl):, <;, instructions from the Contracting (>ffiter; affiftf~~t!r .

as asbestos- contaminated matetiat •.. Pl~t:;fii1'JSPPtoved container; see sheet 9.\APi>tv tabels .. se~•sh6~t14: ..

Dispose of as specified i'n the ~ontract ...

-35-

Sheet 5

CD ~YMH~reo~T ~~~i:~~\Ix~~~M

OF 24 IN ON CENTER

EP1110-1-11

15 JUL 92

AIR LOCK- MINIMUM DIMENSIONS;

5 FT X 5 FT X 6.5 FT HIGH

WITH VERTICAL STUDS SPACED

MAXIMUM OF 24 IN ON CENTER

EXCEPT 3 FT AT DOORWAYS.

Double bulkhead containment area

1. Establish work area so that unauthorized entry is prevented; see sheet 11. Construct a structural frame for two bulkhead walls and an air lock. See sheet 1 for air lock requirements other than those identified in note 1 of this drawing. Bulkheads are to be parallel to the wall being removed. Attach structural frame to walls, floor, or ceiling as necessary for stability.

Locate change room on the side opposite the asbestos-containing surface material. Cover the frame with one layer and the floor with two layers of 6-mil polyethylene sheeting and seal edges to walls, ceiling, and floor surfaces with duct tape. If a bulkhead is located outside the building, end walls and a roof will also be required. Install viewing inspection windows, where feasible.

2. Seal with duct tape all penetrations (typical) such as pipes, electrical conduit, or ducts.

3. Install triple 6-mil polyethylene flaps at doorways.

Place portable sprayer with clean water, disposable towels, and prelabeled disposal bag in air lock.

4. Install danger signs on outside of containment area; see sheet 11 .

5. Install HEPA vacuum; extend hose into mini-containment area for general vacuuming, negative air, and cleaning of disposable suit.

6. Accumulate all loose materials for disposal. Place in approved container; see sheet 9. Apply labels; see sheet 14. Adequately wet clean all wall, floor, tool, and equipment surfaces.

7. Abatement worker must wear two disposable suits. Remove outer suit in work area and place in a plastic bag; see sheet 9. Enter air lock.

8. In air lock, wet wipe respirator and wash hands with clean water from portable sprayer. Remove respirator and place in a clean plastic bag. Proceed to shower where inner suit may be removed.

9. After abatement is completed, prepare area for final clearance.

Final clearance requirements. After abatement is completed, prepare area for final clearance.

Contractor and Contracting Officer will certify visiJal inspection of work area on sheet 19, Certification of Rna/ Cleaning and Visual Inspection. Contractor will apply lockdown encapsulant. Contract designeefs) will conduct final air-clearance monitoring as required by the contract. Remove containment area upon instructions from the Contracting Officer, and treat it as asbestos- contaminated material. Place in approved container; see sheet 9. Apply labels; see sheet 14.

Dispose of as specified in the contract.

-36-

Sheet 6

EP1110-1-11

STRUCTURAL FRAME WITH

STUDS SPACED MAXIMUM

OF 2<1 IN. ON CENTER

AIR LOCK- MINIMUM DIMENSIONS;

5 FT X 5 FT X 5.5 q HIGH

WITH VERTICAL STUDS SPACED

MAXIMUM OF 2<1 IN. ON CENTE;:;

Mini-containment area

1 . Establish work area so that unauthorized entry is prevented; see sheet 11. Construct a two-compartment wood frame around work area;

install one layer 6-mil polyethylene sheeting to structural members and two layers 6-mil polyethylene sheeting to the floor. Seal all edges to wall, ceiling, and floor surfaces with duct tape. Install viewing inspection windows, where feasible.

2. Seal with duct tape all penetrations (typical) such as pipes, electrical conduit, or ducts.

3. Install triple 6-mil polyethylene flaps at both doorways. Place portable sprayer with clean water, disposable towels, and prelabeled disposal bag in air lock.

4. Install danger signs on outside of containment area. See sheet 11.

5. Install HEPA vacuum; extend hose into mini-containment area for general vacuuming, negative air, and cleaning of disposable suit.

6. Accumulate all loose materials for disposal. Place in approved container; see sheet 9. Apply labels; see sheet 14. Adequately wet clean all wall, flcior, tool, and equipment surfaces.

7. Abatement worker must wear two disposable suits. Remove outer suit in work area and place in a plastic bag; see sheet 9. Enter air lock.

8. In air lock, wet wipe respirator and wash hands with clean water. Remove respirator and place in a clean plastic bag. Proceed to remote shower unit where inner suit may be removed.

Fmel clearance requirements. After abatement is completed~ prepare area for final clearance.

Contractor and Contracting Officer will certify visual inspection of work area on sheet 19, CertifiCation of Final Cleaning and Visual Inspection. Contractor will apply tockdown encapsulant. Contract designee(s) witrconduct.final air-clearance monitoring as required .bY the contract. Remove containment area upon instructions from the Contracting Officer, and treat it as asbestos- contaminated material. Place in approved container; see sheet 9. Apply labels, see sheet 14.

Dispose of as specified in the contract.

-37-

Sheet 7

PLASTIC FLAPS

DECONTAMINATION UNIT

fr~:=-=-fi 1r-=-=-fj 111 l111ll ll1

EP1110-1-11

15 JUL 92

111 111111 ,•=o "'" •"=~CRITICAL BARRIERS

COVERING WINDOWS,

llltllllll Ill

VIEWING DOORS, ETC.

INSPECTION

WINDOW

HEPA FILTERED

FAN UNITS

___J~:===;:I~

; ~SEE PLANS FOR

//~...-/~ EXHAUST LOCATION

/ CLEAN EXHAUST

Ventilation of containment area and decontamination unit, using HEPA filters

1. Install a ventilation system in the containment area that draws the air supply through the decontamination and load-out units. See sheets 20 and 22.

2. Operate ventilation system 24 hours a day from start of abatement through final cleararce.

3. Place at the decontamination unit entrance a pressure gauge that measures differential pressure between abatement and ambient areas. Gauge must be read hourly and logged or continuously recorded.

4. The ventilation system must create, as a minimum, a negative pressure of 0.02 inches of water inside the containment area (relative to the outside of the containment area) and must be sized for a minimum of four air changes per hour or more, as specified in the contractor's asbestos hazard abatement plan.

5. Locate HEPA filters in order to prevent dead air pockets.

6. Exhaust filtered air to outside of building, unless otherwise approved by the Contracting Officer.

-38-

Sheet 8

[6 IN.J [15

D

• SEE SET UP DETAIL SHEET 14

FOR CONTAINER LABEL.

EP 1110-1-11

15 JUL 92

DOUBLE BAGGING

Containers-double bagging

1. Place the still-wet asbestos-containing and asbestos-contaminated material into a prelabled 6-mil polyethylene bag. Do not overfill. Do not use bag for asbestos-containing or asbestos-contaminated material that could puncture the bag. (See sheet 9C for packaging items that could puncture bags.)

2. Evacuate with HEPA vacuum, and seal collapsed bag by twisting top [6 in] [15 em] closed and wrapping with a minimum of two layers of duct tape.

3. Twist top and fold over. Apply second wrap of duct tape.

4. Adequately wet clean outside of disposal bag by wet wiping, and take bag to the equipment and staging area.

5. Place bag inside a second prelabled 6-mil polyethylene bag.

6. Seal outer bag by repeating steps 2 and 3 above.

Take bag to load-out unit; see sheet 20.

-39-

Sheet 9A

Containers-leak-tight wrapping

1. Place two layers of 6-mil polyethylene sheet on surface so that the bottom layer is offset [4 in) I 1 0

em) from the top layer.

2. Place the still-wet asbestos-containing or asbestos-contaminated material that is too large (boiler, vessel, pipe segment, etc.) to be placed in disposal bags on the top layer of polyethylene.

3. Wrap the top layer tightly around the contaminated material. Seal all edges of the top layer of sheeting with duct tape. Apply labels; see sheet 1 4.

4. Repeat procedure with bottom layer, including labeling. Take to load-out unit; see sheet 20.

-40-.

Sheet 98

Containers-corrugated cardboard boxes

1. Place still-wet asbestos-containing or asbestos-contaminated material that could puncture disposal bags into heavy-duty corrugated cardboard boxes coated with plastic or wax that will retard deterioration from moisture.

2. Close flaps, and seal with duct tape.

3. Apply labels; see sheet 14. Place box into disposal bags; see sheet 9A. Take to load-out unit; see sheet 20.

-41 -

Sheet 9C

VACtAt.1

RE"Q;. S

EXCES' ~R

.6ND :; LL.6PS£S

BAG

Glove bag

1. Construct modified containment area in accordance with sheet 21. NOTE: Inspect for structural integrity the insulation material adjacent to section being removed, since glove bag removal procedure is not appropriate if it will cause asbestos fiber release from adjacent asbestos-containing material.

2. Put tools and rags inside glove bag. Insulation adjacent to the asbestos-containing material being removed must be adequately wet cleaned and sprayed with an encapsulant before placing glove bag over the area to be removed. Install glove bag according to manufacturer's instructions. (NOTE: Negative-air glove bags may be used if first approved by Contracting Officer. Manufacturer procedures for negative-air glove bags will vary from procedures identified on this sheet.) Install HEPA filter vacuum cleaner with hose ducted into bag. Seal with duct tape. Smoke test for leaks. Soak insulation with amended water.

3. Remove insulation and clean exposed metal surfaces. Encapsulate exposed ends of insulation and metal surfaces. Adequately wet clean glove bag surfaces to below tool pouch.

4. Grasp tools in pouch and withdraw by pulling glove inside out. Twist glove above encased tools to create a constriction, and tape constricted area with duct tape. Cut through middle of taped area so that tools and glove bag will both remain sealed. Place encased tools into tool pouch of next glove bag or decontaminate by water immersion.

5. Evacuate glove bag, using HEPA vacuum. Twist bag to create a constriction below tool pouch. Wrap constricted area with duct tape. Cut bag 14 in) I 10

em) above constriction. Double bag cut off portion of bag; see sheet 9. Apply labels; see sheet 14. C::p and seal end of HEPA vacuum hose in order to pre\ :il~ incidental fiber release.

6. Remove remaining portion of glove bag. Place in approved container; see sheet 9. Apply labe1s; se sheet 14. Dispose as asbestos-contaminated wct·:c.

:ft!i~~~-1~~;ql:~r·t~t.ctea~~.

~Contriictor~'iiitrcontracting Officer will.certify ... ,:: Jal

,m~~~;=~:~~~ti::·:t:D~ of

·desrgneefsfwiU'corlduet final air-clearance· mon•; nring as,required't>vtht! coritract; ..

,._o,•':. ·-·~ .. :..:...: o~ ··,. -' o-:!.. ~- ;:--: "'"c.c .... "-• ·.

-42- Setup .Jetail

She~t 10 k 14 In

ASBESTOS

CANCER & LUNG

DISEASE HAZARD

AUTHORIZED

PERSONNEL ONLY

RESPIRATORS AND

PROTECTIVE CLOTHING

ARE REQUIRED IN

THIS AREA

v '1

.f

.f -

.f

.f -

.f N

EP 1110-1-11

15 JUL 92

~BLACK I €NcER BACKGROUND

3 WHITE

BORDER

WHITE LETTERING

ON RED BACKGROUND

AREA WARNING SIGNS AND WARNING TAPE

DETAIL @

Area warning signs and warning tape

1. Provide and install [4 mill [0.10 mm) polyethylene warning tape at locations shown on the abatement area plan.

2. Warning tape is to be attached to wood or metal posts at [10 ftl [300 em) on center. Tape must be [3 ftl [1 00 em) from ground.

3. Attach both warning signs at each entrance of the work area and at [33 yd) [30 m) on center where security fencing is installed.

4. Warning signs must be in English and other languages required by the contract.

5. Install at eye level.

-43-

Sheet 11

FIBER CONCENTRATION

NOT IN EXCESS OF I FIBER/CC

NOT IN EXCESS OF 5 FIBERS/CC

NOT IN EXCESS OF 10 FIBERSICC

NOT IN EXCESS OF 10 FIBERS/CC

NOT IN EXCESS OF 10 FIBERS/CC

NOT IN EXCESS OF 10 FIBERS/CC

NOT IN EXCESS OF 100 FIBERS/CC

GREA 1 ER THAN 100 FIBERS/CC

OR UNKNOIIN CONCENTRATION

MINIMUM R(OUIREO R£SPIRA TOR

HALF ·MASK AIR PURIFYING RESPIRATOR

WITH HEPA FIL TEAS

FULL F ACEPIECE AIR-PURIFYING RESPIRATOR

IIITH HEPA FILTERS

LOOSE FIT TINC HELMET OR HOOD. POIIERED AIR·

PURIFYING RESPIRATOR !liTH HEPA FILTERS

POIIERE:O AIR-PURIFYING RESPIRATOR IIITH

FULL FACEPIECE AND HEPA FIL TEA

LOOSE FITTING HELMET OR HOOD, SUPPLIED

AIR RESPIRATOR OPERATED IN CONTINUOUS

FLOII MODE !liTH BACK-UP HEPA FIL lEA

SUPPLIED AIR RESPIRATOR IIITH FULL

F ACEPIECE OPERATED IN CONTINUOUS

FLOII MODE !liTH BACK-UP HEPA FILTER

FUll FACEPIECE

SUPPLIED AIR RESPIRATOR

OPERATED N PRESSURE-DEMAND

MODE !liTH BACK-UP HEPA FILTER

FULL FACEPIECE SUPPLIED-AIR

RESPIRATOR OPERATED IN

PRESSURE-DEMAND MODE

IIITH AUXILIARY POSITIVE-PRESSURE

SELF ·CONT AINEO

BREATHING APPARATUS

Respiratory protection table

-44-

EP 1110-1-11

15 JUL 92

Q

HEPA'l~

AUXILIARY

POSITIVE

PRESSURE

SELF -CONT AINEO

BREATHING

PPARAlUS

AIR

SUPPLY

Sheet 12

Protective clothing

1 . Disposable or reusable full body suit with elastic around hood and shoe cover openings is required or as otherwise specified in the contract.

2. Hood shall be worn over respirator's head and neck straps.

3. Shoe covers shall be worn over work shoes.

4. Cuffs shall be taped with duct tape at wrists and ankles in order to prevent infiltration.

5. Cartridge-type air-purifying HEPA filter respirator is minimal requirement. Type shall be selected in accordance with sheet 1 2.

6. If eye protection is not integral with respirator, protection goggles are required.

7. Rubber work gloves are recommended to be worn alone or under outer work gloves provided for hand and operation safety.

-45-

Sheet 13 k [15 CMJ [6 INJ ~ 1r----------------------------------~~

DANGER

CONTAINS ASBESTOS FIBERS

AVOID CREATING OUST

CANCER & LUNG DISEASE HAZARD

Disposal container label

EP ·, 110-1-11

15 JUL 92

z u

Attach warning labels to each disposal container removed from abatement area.

-46-

Sheet 14 v

SIGN

A.

SIGN

B.

SIGN

C.

[10 INJ [25 CMJ

NO FOOD, BEVERAGES, OR

TOBACCO PERMITTED

ALL PERSONS SHALL REMOVE

STREET CLOTHING AND PUT ON

PROTECTIVE CLOTHING AND

RESPIRATOR BEFORE ENTERING

THE WORK AREA

ALL PERSONS SHALL SHOWER

IMMEDIATELY AFTER EXITING

WORK AREA AND BEFORE

ENTERING THE CLEAN ROOM

v I

Decc:>ntamination unit signage

1. Provide signs in English and other languages required by the contract.

2. Install at eye level.

-47-

EP1110-1-11

15 JUL 92

[4 INJ

[10 CMJ

[ 1 IN J

[2.5 CMJ

CTYP)

[10 IN]

[25 CMJ

[8 IN]

[20 CMJ

Sheet 15

I ~-----~~: ~ill

EP 1110-1-11

15 JUL 92

Preparation of full containment area for final clearance (for carpeted floors)

1 . Accumulate all loose material for disposal. Place material in approved container; see sheet 9. Apply labels; see sheet 14. Adequately wet clean and HEPA vacuum all wall, floor, and equipment surfaces.

2. Contractor and contracting officer will certify visual inspection of work area on sheet 1 9, Certification of Final Clearing and Visual Inspection.

3. Apply lockdown encapsulant.

4. Remove polyethylene from walls, floor, and plywood. HEPA vacuum plywood before removal.

Critical barriers sealing all windows, doors, wall openings, electrical outlets, etc., are to remain.

Remove any temporary equipment enclosures used;

see sheet 24. Treat polyethylene as asbestos-contaminated material. Place in approved container; see sheet 9 for leak-tight wrapping. Apply labels; see sheet 14. NOTE: With approval from the Contracting Officer, uncontaminated plywood can be treated as ordinary construction waste; otherwise, treat as asbestos-contaminated material.

5. HEPA filter unit remains in place and operating.

6. Door into contamin'ation unit or load-out room remains.

7. HEPA vacuum carpet.

8. Prepare area for final clearance.

9. Contractor and Contracting Officer will recertify visual inspection of work area on sheet 19, Certification of Final Cleaning and Visual Inspection.

1 0. Contract designee(s) will conduct final air-clearance monitoring as required by the contract.

1 1. Upon instruction from Contracting Officer, shut down HEPA filter ventilation system, detach duct work, move system to equipment room of decontamination unit, clear and dispose of waste; see sheet 8. Remove critical barrier and place in approved container; see sheet 9. Apply labels; see sheet 1 4.

Dispose of waste as asbestos-contaminated material.

-48-

Sheet 16

Preparation of full containment area for final clearance (for hard-surfaced floors)

1 . Accumulate all loose material for disposal. Place in approved container; see sheet 9. Apply labels; see sheet 14. Adequately wet clean and HEPA vacuum all wall, floor, and equipment surfaces.

2. Contractor and contracting officer will certify visual inspection of work area on sheet 19, Certification of Final Clearing and Visual Inspection.

3. Apply lockdown encapsulant.

4. Remove polyethylene on walls and floor. Critical barriers sealing all windows, doors, wall openings, electrical outlets, etc., are to remain. Remove any temporary equipment enclosures used; see sheet 24.

Treat polyethylene as asbestos-contaminated material. Place in approved container; see sheet 9 for leak-tight wrapping. Apply labels; see sheet 14.

5. HEPA filte( unit remains in place and operating.

6. Door into decontamination unit or load-out room remains.

7. Prepare area for final clearance.

8. Contractor and Contracting Officer will recertify visual inspection of work area on sheet 19, Certification of Anal Cleaning and Visual Inspection.

9. Contract designee(s) will conduct final air-clearance monitoring as required by the contract.

10. Upon instruction from Contracting Officer, shut down HEPA filter ventilation system, detach duct work, move system to equipment room of decontamination unit, clear and dispose of waste; see sheet 8. Remove critical barrier and place in approved container; see sheet 9. Apply labels; see sheet 14.

Dispose of waste as asbestos-contaminated material.

-49-

Sheet 17

Preparation of containment area for final clearance (for vinyl tile floors)

1 . Accumulate all loose material for disposal; see sheet 9. Apply labels; see sheet 14. Adequately wet clean all wall, floor, and equipment surfaces.

2. Contractor and contracting officer will certify visual inspection of worlulrea on sheet 19, Certification of Final Clearing and Visual Inspection.

3. Apply lockdown encapsulant.

4. Remove polyethylene from walls. Critical barriers sealing all windows, doors, wall openings, electrical outlets, etc., are to remain. Remove any temporary equipment enclosures used; see sheet 24.-Treat polyethylene as asbestos-contaminated material.

Place in approved container; see sheet 9 for leak-tight wrapping. Apply labels; see sheet 14.

5. HEPA filter unit remains in place and operating.

6. Door into decontamination unit or load-out room remains.

7. Prepare area for final clearance.

8. Contractor and Contracting Officer will recertify visual inspection of work area on sheet 19, Certification of Final Cleaning and Visual Inspection.

9. Contract designee(s) will conduct final . air-clearance monitoring as required by the contract.

10. Upon instruction from Contracting Officer, shut down HEPA filter ventilation system, detach duct work, move system to equipment room of decontamination unit, clear and dispose of waste; see sheet 8. Remove critical barrier and place in approved container; see sheet 9. Apply labels; see sheet 14.

Dispose of waste as asbestos-contaminated material.

-50-

Sheet 18

Certification of Final Cleaning And Visual Inspection

15 JUL 92

Individual abatement task as identified in paragraph, Description of Work -----------

In accordance with the cleaning and decontamination procedures specified in the Contractor's asbestos hazard abatement plan and this contract, the Contractor hereby certifies that he/she has thoroughly visually inspected the decontaminated regulated work area (all surfaces, including pipes, beams, ledges, walls, ceiling, floor, decontamination unit, etc.) in accordance with ASTM E1368, Standard Practice for Visual Inspection of Asbestos Abatement Projects, and has found no dust, debris, or asbestos-c;ontaining material residue.

BY: (Contractor's signature) __ ----------------- Date ___ _

Print name and title -----------------------------

(Contractor's Onsite Supervisor signature) ------------- Date ---

Print name and title -----------------------------

(Contractor's Industrial Hygienist signature) ------------ Date ___ _

Print name and title -----------------------------

Contracting Officer Acceptance or Rejection

The Contracting Officer hereby determines that the Contractor has performed final cleaning and visual inspection of the decontaminated regulated work area (all surfaces including pipes, beams, ledges, walls, ceiling, floor, decontamination unit, etc.) and by quality assurance inspection, finds the Contractor's final cleaning to be:

0 Acceptable

0 Unacceptable, Contractor instructed to reclean the regulated work area.

BY: Contracting Officer's Representative

Signature

Print name and title

-51 -

Date

Sheet 19

SEAL EDGES OF LOAD-OUT UNIT TO

EXISTING STRUCTURE WIT~ 6 MIL

POLYETHYLENE AND DUCT TAPE.

r

6 MIL POLYETHYLENE S J APL£0 AND

TAPED TO INSIDE WOOD STUDS AND

ROOF RAFTERS SPACED MAXIMUM 2~ IN.

ON CENTER APART. COVER WALL AND ROOF

FRAMING WITH PL YIIOOO. CONSTRUCT FLOOR

USING PL YliOOD AND COVER WITH 2 LAYERS

OF 6 MIL POLYETHYLENE.

EP 1110-1-11

15 JUL 92

ENCLOSED

TRUCK

OR

DUMPSTER

~~(2~.5-M~J~(B __ FT~J--~----------~----------~

RECOMMENDED LOAD-OUT UNIT MINIMUM

ABATEMENT WORK AREA !TYPICAL! CLEAR HEIGHT-(2.0 Ml (6.5 FTJ

BUILDING

EXTERIOR

Load-out unit floor plan

1 . Abatement worker is to enter and exit abatement work area only through decontamination unit.

2. Place additional 6-mil polyethylene sheeting on top of abatement area floor. Double bag asbestos-contaminated material in this area before removing.

3. Wet wipe bags, equipment, and containers, and take to holding room.

4. Stage clean bags, equipment, and containers in holding room until disposal worker removes them.

5. Disposal workers, wearing full protective clothing and appropriate respirator protection, carry decontaminated bags and containers through enclosed walkway and· into enclosed truck or Dumpster.

Anal clearance requirements. Before breaking down load-out unit, adequately wet· clean and HEPA vacuum all surfaces and prepare area for final clearance.· Contractor and Contracting Officer will certify visual inspection of work. area on sheet 19, Certification of Rna/ Cleaning and Visual Inspection.

Contractor will apply lockdown encapsulant. Contract designee(sl will conduct final air~cfearance monitoring as required by the contract. Breakdown load-out area upon instructions from Contracting Officer. Treat as asbestos- contaminated material. Place in approved container; see sheet 9. Apply labels; see sheet 14.

Dispose of as required by the contract.

-52-

Sheet 20

,-;----------.----------'--' ',....:...' ___ :=\~,-=---=--=-~-----(}) AIR-LOCK (SEE SHEET 1 J j--5--, l l l / l ____ :

DUCT TAPE

5 HEPA

~--------1

I I I I I I I I I I I I I

HEPA VENTILATION

VAC~

~Q)-

Modified containment area

1. Establish work area and prevent unauthorized entry; see sheet 11 . Eliminate airflow into containment area by isolating all supply and return air ducts from mechanical system.

2. Install air lock at entrance to abatement area; see sheet 1 . Air lock may be constructed either outside or inside of room. NOTE: Air lock is not required for glove bag operations.

3. Install 6-mil polyethylene sheet on floor under work area.

4. Install 6-mil polyethylene (critical barrier) over all windows, doors, wall openings, electrical outlets, etc.

Provide airtight seal, using duct tape.

5. Provide a HEPA-filter vacuum cleaner and a HEPA-filter ventilation system in the work area; see sheet 8. The ventilation system does not have to be ducted to the outside of the structure. The ventilation system shall operate 24 hours a day from start of abatement through final air-clearance monitoring. The ventilation system shall be sized to recirculate the air a minimum of four air changes per hour. For glove bag operations, provide a single HEPA ventilation unit with a measured capture velocity at least 1 ,500 cfm.

6. Accumulate all loose material and polyethylene from floor. Place in approved container; see sheet 9.

Apply labels; see sheet 14. HEPA vacuum and adequately wet clean all wall, floor, and equipment surfaces.

r10al d .. ance requlremants. Abatement worker must wear two disposable suits. Remove outer suit in the work area. Place suit in 6-mil disposal bag; see sheet

9. Enter air lock. In air lock, wet wipe respirator and wash hands with clean water from portable sprayer.

Remove respirator and place in clean plastic bag.

Proceed to remote shower where inner suit may be removed. Prepare work area and air lock for final clearance. Contractor and Contracting Officer will certify visual inspection of work area on sheet 19, Certification of Rna/ Cleaning and Visual Inspection.

Contract designee(s) will conduct final air-clearance monitoring as required by the contract. Upon instructions from the Contracting Officer, remove critical barriers and HEPA ventilation units; see sheet

8. Treat polyethylene as asbestos-contaminated material. Place in approved container; see sheet 9.

Apply labels; see sheet 14. Dispose of as required by the contract.

-53-

Sheet 21

INDIVIDUAL WALL HOOKS OR lOCKER

FOR WORKER'S STREET CLOTHING,

PERSONAL AIRTICLES. -'NO CLEAN

OISPOSABLE CLOTHING

SIGN A

SHEET 15

HOT ~ COLD WATER FAUCET

SHAMPOO HOLDE

EP1110-1-11

15 JUL 92

r 6 MIL POLYETHYLENE STAPLED -'NO TAPED TO INS;DE

OF WALLS AND ROOF FRAMING SPACED MAXIMU_. 24 '"'·

SHOWER DRAIN

@TO SUMP

ON CENTER I>PAAT. COVER WALL AND ROOF FRAMING WITH

PL '!'WOOD. CONSTRUCT FLOOR USING PI, YWOOD -'NO COVER

WITH 2 LAYERS OF 6 MIL POLYETHYLENE

SIGN 8

SHEET 11

~I

HO~

SHOWER ROOM

CLE-'N TOWEL SHEL

-'NO RECEPTOR

DISPOSAL

20 MICRON ~ 5 MICRON

WASTE WAfER FILTERS

OECON UNIT MINIMUM

CLEAIR HEIGHT-[2.0 Ml

[6.5 FTJ

ECEIVER FOR DISPOSAL DF

EXCESS WET WIPE WATER

SIZE DETERMINED BY NUMBER [2.4 Ml [8 FTJ MINIMUM SIZE DETERMINED BY NUMBER

OF EMPLOYEES

[2.4 MJ [8FTJ MINIMUM

OF EMPLOYEES

[1.2 MJ [4 FTJ MINIMUM

SEAL EDGES OF OECON UN1T TO-'

EXISTING STRUCTURE WITH 6 MIL

POLYETHYLENE AND DUC" TAPE

Decontamination unit floor plan

1 . Establish work area so that unauthorized entry is prevented; see sheets 1 1 and 1 5. Before entering the work area, all personnel shall remove their street clothing in the clean room and put on protective clothing and respirator.

2. Whenever exiting the work area, all personnel shall:

Vacuum clothing and shoes outside equip ment room.

Remove all clothing and equipment (except respiratorl in equipment room.

• Store work shoes and equipment in locker.

• With respirator still on, shower thoroughly, in cluding hair. Then remove respirator and fin ish shower.

• Proceed to clean room and put on street clothes.

3. See sheet 23 for minimum plumbing requirements, including wastewater filtration. Ensure that plumbing and specified filter size meet local requirements.

4. Twice daily, or more often if necessary, and before breaking down decontamination unit after abatement, adequately wet clean and HEPA vacuum all wall, floor, equipment, and other surfaces. Waste collected in shower room and equipment room shall be treated as asbestos-contaminated material. Place in approved container; see sheet 9. Apply labels; see sheet 14.

5. Prepare for tina! clearance.

Fmal clearance requirements. Contractor and Contracting Officer will certify visual inspection of work area on sheet 19, Certification of Rna/ Cleaning and Visual Inspection. Contract designee(s) will conduct final air-clearance monitoring as required by the contract. If the unit is not a prefabricated decontamination unit, apply Jockdown encapsulant before final air-clearance monitoring. After approval of final air clearance, break down and treat polyethylene as asbestos-contaminated material. Place in approved container; see sheet 9. Apply labels; see sheet 14.

Dispose of as required by the contract.

-54-

Sheet 22

COLD WATER SUPPL

CLEAN ROOM

HOT WATER

HEATER

MINIMUM WATER

PRESSURE-35 PSI

19 MM OIA. MIN.

[3/ 4 IN DIA. MIN.]

HOT WATER SUPPLY

L,5 MM DIA.

[1 IN DIA.J

BACK-FLOW

PREVENTER

EP 1110-1-11

15 JUL 92

25 MM DIA. SHUT -OFF VALVE

[1 IN DIA. SHUT-OFF VALVEJ

25 MM ~

[1 IN DIA.J

PRESSURE

REDUCING VALVE

25 MM DIA. MIN.

: [1 IN DIA. MIN.J

I

SHOWER HEAD IS TO INCLUDE

AN INTEGRAL 2 GAL/MIN

t==±===+-r-- 19 MM DIA. MIN.

/ [3/4 IN DIA. MIN.J

FLOW RESTRICTOR.

WATER FILTERS

5 MICRONS 20 MICRONS

EXISTING

SANITARY

DRAJN

SUMP PUMP

FLOAT SWITC

SHOWER SUMP

700 LITER

[185 GALLON]

MINIMUM

CAPACITY

SHOWER ROOM

I I I I I I I I I I I

-WALL

I I I I I I I I I I I I I I I

HOSE

BIBB

RECEIVER

FOR WET

WIPE WATER

DISPOSAL

EQUIPMENT

ROOM

SIZE CAPACITY OF SUMP PUMP FOR TWICE

THE EXPECTED WASTE WATER FLOW.

Decontamination unit piping details

-55-

Sheet 23

WALL AND SIDE FRAMING MEMBERS

SHALL BE SPACED MINIMUM OF 24 IN.

ON CENTER

Temporary equipment enclosure

1. Construct wood frame of equipment enclosure;

then cover all sides and the roof of frame with plywood.

2. Cover entire plywood equipment enclosure with 6-mil polyethylene. Seal seams and edges with duct tape, making the enclosure airtight and watertight.

FiRifCieliniOCS reqUirements: Upon completion of abatementwo~ remove temporary enclosure in accoroancce:with the procedures listed on sheet 16, 17, or_ 1 8, and J]repare for final clearance.

-56-

Sheet 24

(i) TUNNEL FRAMING TO BE SPACED

MAXIMUM OF 24 IN. ON CENTER

EXCEPT AT DOORWAYS

LENGTH VARIES TO SUIT----?""

SITE CONDITIONS

u...

LJ") ::;:

U) :J

,....., z ::;: :E N

[1.25 MJ [4 FTJ

l MINIMUM l

EP 1110-1-11

15 JUL 92

-.~!t+--++---SLOPE EXTERIOR ROOF MINIMU~

OF 4.0%

Access tunnel

1 . Construct a wood frame tunnel; cover all sides and the roof of the frame with polyethylene. NOTE: Cover all sides and roof with plywood or reinforced polyethylene if access tunnel is located outside.

2. Cover entire tunnel with 6-mil polyethylene; seal seams and edges with duct tape, making the tunnel airtight and watertight.

3. Twice daily, or more frequently if necessary, adequately wet clean and HEPA vacuum all wall, floor, and equipment surfaces.

Anal Clearance Requirements. Upon completion of abatement work, remove access tunnel in accord;mce with the procedures listed on sheet 16, 17, or 18, and prepare for final clearance.

-57-

Sheet 25

HEPA

FILTER

EP1110-1-11

15 JUL 92

CYCLONE

SEPERATOR

INCOMING

ACM

VACUUM

CONDUIT

Asbestos power vacuum collection and removal system

An asbestos power vacuum collection and removal system is a comp_letely self-contained, _ material-handling system used to transport large volumes of asbestos-containing material through a large-diameter vacuum conduit to a trailer or truck-mounted collector. The cyclone is designed to separate the wet asbestos-contaminated material from the air stream and enable easy transfer to disposal containers. Asbestos-contaminated air is HEPA filtered before being discharged into the atmosphere. The contractor shall follow manufacturer-recommended operating and maintenance procedures in order to protect workers and environment.

-58-

Sheet 26

Cleaning and storage

--t- Fum08hinga

0-.gnatlon, location. Item: Ouontoty Item: Ouent•tv Item: Toto! Item: Quontoty Item: Ouent1ty tdentltic•tion d•k•. ''"' -hnng lineer book.a, other llblee, clborwta eq-· p_.., cl\eo,. l•t lilel

Storage•

In place and protected by a sealed polyethylene cover

In same building, moved on same floor .

In same building, moved to another floor

In different building on installation nearby ( < 1 mile)

In different building on installation (1 > to 10 miles)

Off Installation

Dispose of as nonasbestos-contaminated material

Dispose of as asbestos-contaminated material

Cleaning.

Wet wipe

HEPA vacuum

Steam clean

Launder

•specific storage location shall be confirmed with Contracting Officer before removal.

-59-

Eq~.ap,...,t

EP1110-1-11

15 JUL 92

Cod• SpeCifiC

Stor- Locat•on

Fixed Removeble Cl .. nong Storeoe Bldg .•

Coda

Code

1 1 room, edd-

I

Sheet 27

WOOD STUDS SPACED

MAXIMUM 24 IN. ON CENTER

POLYETHYLENE

STRUCTURAL

FRAME

EP1110-1-11

15 JUL 92

Structural critical barrier ·

1. The purpose of this critical barrier is to isolate the containment area from the remainder of the building.

The barrier shall consist of fire-rated drywall mounted on both sides of a structural frame, with the face of the containment area covered by a 6-mil polyethylene sheet. Seal the edges of the polyethylene sheet to walls, ceiling, and floor with duct tape. Secure structural frame to adjacent walls as necessary for stability.

2. Install danger signs on side away from containment area. See sheet 1 1.

3. After final air-clearance monitoring and upon instructions from contracting officer, remove critical barrier and treat polyethylene sheet as asbestos-contaminated material; see sheets 9 and 1 4.

If framing and drywall are asbestos-contaminated, treat as asbestos-contaminated material; see sheets 9 and 14.

-60-

Sheet 28

Part 3, Response Action Details

MASONRY

OR WOOD

STUDS--+----e

Bridging encapsulation of troweled wall plaster

1 . Establish work area so that unauthorized entry is prevented; see sheet 1 1. Eliminate airflow into containment area by isolating all supply and return air ducts from mechanical system.

2. Install 6-mil polyethylene critical barriers over all windows, doors, wall openings, electrical outlets, etc.

Secure with duct tape on all sides.

3. Install 6-mil polyethylene, protecting wall and floor surfaces. If only one wall is included, prepare bulkhead containment area as specified on -sheet 5.

4. Install HEPA filter and ductwork; see sheet 8.

5. Apply tinted bridging encapsulant to surface by airless spray in accordance with manufacturer's recommendations.

6. Inspect and reapply encapsulant as necessary.

7. Remove polyethylene on walls, floor, and plywood.

The critical barriers sealing all windows, doors, wall openings, electrical outlets, etc., are to remain. Treat polyethylene as asbestos-contaminated material; see sheet 9.

8. Prepare area for final clearance.

9. Carry out final clearance reQuirements as specified on sheet 5.

-61 - Response Action Detail

Sheet 29

STUD

WALL

EP 1110-1-1'

15 JUL 9::

Repair of troweled wall plaster on stud wall

1 . Prepare containment area as specified on applicable sheet 5, 6, or 7.

2. Adequately wet mist damaged plaster with amended water, initially and during removal procedures.

3. Remove damaged lath and plaster to nearest stud.

Place in approved container; see sheet 9. Apply labels; see sheet 14.

4. Repair damaged area and install new rock lath.

Trowel asbestos-free plaster on rock lath, matching adjacent surfaces. Apply tinted bridging encapsulant to repaired surface by airless spray in accordance with manufacturer's recommendations.

5. Inspect and reapply encapsulant as necessary.

6. Prepare area for final air clearance.

7. Carry out final clearance requirements specified on applicable sheet 5, 6, or 7.

-62-

Sheet 30

PLASTER

MASONRY

I I I I I I I I I I I I I l I l

~-j I ..,...- I

I I, I/-!'

//1 I

I I ( _. :: / / I I // ......_ I J // 1/1,._..

EP 1110-1-11

15 JUL 92

PLASTER

Repair of troweled ceiling or wall plaster on masonry

1 . Prepare mini-containment area as specified on sheet 7.

2. Adequately wet mist damaged plaster with amended water, initially and during removal procedure.

3. Remove damaged material. Place in approved container; see sheet 9. Apply labels; see sneet 14.

4. Repair damaged area by troweling on asbestos-free plaster, and then damp sponge. Match adjacent surfaces.

5. Apply tinted penetrating encapsulant by airless spray to repaired surface in accordance with manufacturer's recommendations.

6. Inspect and reapply encapsulant as necessary.

7. Prepare area for final air clearance.

8. Carry out final clearance requirements specified on sheet 7.

-63-

Sheet 31

MASONRY

WALL

I

---.!.::::;;:,::: ___ -___ ----<.'> 9 -

EP 1110-1-11

15 JUL 92

Removal of troweled wall plaster on masonry

1. Prepare containment area as specified on applicable sheet ~ 3, 4, or 5.

2. Prepare ceiling as follows:

Cover light fixture with 6-mil polyethylene.

· Protect entire suspended ceiling system with

6-mil polyethylene.

3. Adequately wet mist surface of plaster with amended water, initially and during removar procedure.

4. Remove plaster on masonry. Brush, HEPA vacuum, and wet wipe surface in order to remove remaining laitance and residue. Place removed asbestos-containing material in approved container;

see sheet 9. Apply labels; see sheet 14.

5. Apply tinted penetrating encapsulant by airless spray in accordance with manufacturer's recommendations.

6. Inspect and reapply encapsulant as necessary.

7. Prepare area for final air clearance.

8. Carry out final clearance requirements specified on applicable sheet 5, 16, 17, or 18.

-64-

Sheet 32

METAL OR WOOD STUD WALL

Removal of troweled wall plaster on stud wall

1. Prepare containment area as specified on applicable sheet 2, 3, 4, 5, or 6.

2. Adequately wet mist damaged plaster with amended water, initially and during removal procedure.

3. Remove plaster and lath from studs in manageable pieces. Stack the pieces onto two layers of 6-mil polyethylene. Wrap each polyethylene layer around the stack, sealing all joints and edges with duct tape;

see sheet 9B for leak-tight wrapping. Apply labels; see sheet 14. Place smaller material in approved container; see sheet 9. Apply labels; see sheet 14.

4. Clean, HEPA vacuum, and adequately wet clean.

5. Apply tinted penetrating encapsulant. Inspect and reapply encapsulant as necessary.

6. Prepare area for final air clearance.

7. Carry out final clearance requirements as specified in the applicable sheet 5, 6, 16, 17, or 18.

- 65-:

Sheet 33

• 0

0 0

EP 1110-1-11

15 JUL 92

CONCRETE

DUCT TAPE

Bridging encapsulation of solid or acoustical ceiling plaster

1 . Establish work area so that unauthorized entry is prevented; see sheet 11. Eliminate airflow into containment area by isolating all supply and return air ducts from mechanical system. Prepare containment area as specified on sheet 2, 3, or 4.

2. Install 6-mil polyethylene critical barriers over all windows, doors, wall openings, electrical outlets, etc.

Secure with duct tape on all sides.

3. Install 6-mil polyethylene, protecting wall and floor surfaces, HEPA filter, and ductwork; see sheet 8.

4. Apply tinted bridging encapsulant to surface in accordance witl;l manufacturer's recommendations.

5. Inspect and reapply encapsulant if necessary.

6. Remove polyethylene on walls, floor, and plywood.

The critical barriers sealing all windows, doors, wall openings, electrical outlets, etc., are to remain. Treat polyethylene as asbestos-contaminated material; see sheet 9. Apply labels; see sheet 14.

7. Prepare for final air clearance.

8. Carry out final clearance requirements as specified in the applicable sheet 16, 17, or 18.

-66-

Sheet 34

STRUCTURAL

CEILING

EP 1110-1-11

15 JUL 92

DUCT TAPE

Removal of troweled ceiling plaster on structural substrate

1. Prepare containment area as specified on sheet 2, 3, or 4.

2. Adequately wet mist surface of plaster with amended water, initially and during removal procedure.

3. Remove all surface-mounted fixtures. Remove plaster on structural substrate. HEPA vacuum and wet wipe surface in order to remove remaining residue.

Place removed asbestos-containing material in approved container, and seal leak-tight; see sheet 9.

Apply labels; see sheet 14.

4. Inspect and reclean area as necessary.

5. Apply penetrating encapsulant. Tint encapsulant in order to visually verify full coverage. Inspect and reapply encapsulant as necessary.

6. Prepare area for final air clearance.

7. Carry out final clearance requirements as specified in applicable sheet 16, 17, or 18.

-67-

Sheet 35

~DUCT TAPE

EP1110-1-11

15 JUL 92

Removal of troweled ceiling plaster on hung ceiling

1. Prepare containment area as specified on applicable sheet 2, 3, or 4.

2. Access ceiling and wet mist top side of plaster with amended water, initially and during removal procedure.

3. Cut wire hangers in immediate area. Remove ceiling in manageable pieces. Stack the pieces onto two layers of 6-mil polyethylene. Wrap each polyethylene layer around the stack, sealing all joints and ends with duct tape see sheet 98 for leak-tight wrapping. Apply labels; see sheet 14. For smaller materials, place in approved container; see sheet 9A or 9C. Apply labels; see sheet 14.

4. HEPA vacuum entire area. Inspect and reclean area as necessary.

5. Apply penetrating encapsulant to exposed surfaces, including the underside of structural surfaces. Tint encapsulant in order to verify full coverage. Inspect and reapply encapsulant as necessary.

6. Prepare area for final air clearance.

7. Carry out final clearance requirements as specified in applicable sheet 16, 17, or 18.

-68- Response Action Detail

Sheet 36 r~~~~~~ CEILING

MASONRY

WALL

STUDS

r~~

1 ---~.-::::.::::::-..,..._

1 1 ~:--- - I 1 : --<:::::.::: .. !-- '-, I I I I I-,,_ I I I I I t- .. ,_ I 1 I I I 1 I 1 I 1 I 1 I I I 1 1 I I 1 I 1 I 1 I I I I I 1 I 1 I 1 I 1 I 1 I 1

I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I

I I POLYETHYLENE

DRYWALL

Enclosure of acoustical wall plaster on masonry wall

1. Establish work area and prevent unauthorized entry; see sheet 11. Prepare containment area as specified on sheet 5.

2. Carefully install floor, ceiling, and wall studs so that the wall plaster is not disturbed. Fasten 6-mil polyethylene to studs and seal edges with duct tape.

3. Attach asbestos-free drywall to studs. HEPA vacuum floor, walls, and ceiling.

4. After completion of abatement work, HEPA vacuum clothing and shoes.

5. Prepare area for final air clearance.

6. Carry out final clearance requirements specified on sheet 5.

-69- Response Action Detail

Sheet 37

OR

STUD WALL

EP1110-1-11

15 JUL 92

Bridging encapsulation of acoustical wall plaster

1 . Establish work area and prevent unauthorized entry; see sheet 1 1. Eliminate airflow into containment area by isolating all supply and return air ducts from mechanical system.

2. Install 6-mil polyethylene critical barriers over all windows, doors, wall openings, electrical outlets, etc.

Secure with duct tape on all sides.

3. Install 6-mil polyethylene, protecting wall and floor surfaces not to be encapsulated. If only one wall is included, prepare bulkhead containment area as specified on sheet 5.

4. Install HEPA filter unit and ductwork; see sheet 8.

5. Apply tinted bridging encapsulant to surface in accordance with manufacturer's recommendations.

6. Inspect and reapply encapsulant if necessary.

7. Remove polyethylene on walls, floor, and plywood.

The critical barriers sealing all windows, doors, wall openings, electrical outlets, etc., are to remain. Treat polyethylene as asbestos-contaminated material; see sheet 9.

8. Prepare area for final air clearance.

9. Carry out final clearance requirements…