Soilworks products are the industry’s top standard due to our insistence on creating high performance soil stabilization and dust control products that stand up to rigorous testing – both in the lab and in the field. Our commitment to quality and performance has led to our involvement and testing in hundreds of real-world situations. The following library of reports, presentations, specifications, approvals and other similar documents provide you, our customer, the transparency and dependable assurance that is expected from Soilworks.
Fluor Hanford ALARA Center
Activity Report for August 27, 2007
Assistance, Demonstrations, Research, and Tours Provided by the Center
New Process, Tools, or General ALARA Information
Decommissioning and Deactivation Activities and Information
Contacts
Come visit us at the Fluor Hanford ALARA Center; we are located on the Hanford site at 2101M/200E/226. We will do our best to help you will your radiological engineering, ALARA, and D&D challenges. You can also send us questions via e-mail or by phone. Contact information is below.
Jeff Hunter (509) 373-0656, Cell (509) 948-5906, jeffrey_l_hunter@rl.gov
Larry Waggoner (509) 376-0818, Cell (360) 801-6322, larry_o_waggoner@rl.gov
Jerry Eby (509) 372-8961, Cell (509) 528-3094, jerald_l_eby@rl.gov
ALARA Center Website: www.hanford.gov/rl/?page=974&parent=973
Attachments:
Shielding Materials
Most radiation fields at Hanford are combinations of different kinds of radiation. Normally, temporary shielding is installed to reduce dose rates from fast neutrons, thermal neutrons, beta, and gamma radiation.
Fast neutrons are attenuated by materials containing large amounts of hydrogen. The interaction of the fast neutrons with hydrogen slows the neutron to thermal energies where they are more easily attenuated. Dense metals, such as lead, will also slow fast neutrons by inelastic scattering at higher energy levels. Shielding materials commonly used are water and polyethylene.
Thermal neutrons are slowed by water/polyethylene and can be virtually eliminated by the presence of high thermal neutron cross-section materials such as boron, lithium, or cadmium.
Beta radiation is best shielded using materials with few protons and neutrons in the nuclei so that bremsstrahlung, a secondary radiation similar to gamma, is not created. Plastics, rubber, concrete, and light metals like aluminum make good beta shielding. Rule-of-Thumb: Range of beta particles in air is ~12 feet/Mev of energy.
Energy (Mev) |
Plastic (Lucite) (inches) |
Concrete (inches) |
Aluminum (inches) |
0.5 |
0.1 |
0.05 |
0.05 |
1.0 |
0.2 |
0.1 |
0.1 |
2.0 |
0.3 |
0.2 |
0.2 |
3.0 |
0.4 |
0.3 |
0.3 |
Percentage of 1 Mev Beta Radiation Shielded by Various Common Materials/Equipment
Materials/Equipment |
% Shielded |
Cotton coveralls |
20 |
Plastic Hoods/goggles |
30 |
Cotton or rubber gloves |
30 |
Neoprene gloves |
50 |
Paper (0.3 mm) |
90 |
Safety glasses or respirator |
90 |
Gamma radiation is best shielded with lead or other high-density materials such as steel, lead, concrete and tungsten. The gamma radiation reacts with electrons and denser materials have more electrons in each atom.
Shield material half-value layer in inches for gamma radiation:
Energy (Mev) |
Lead |
Iron |
Concrete (150 lb/ft3) |
Water |
0.5 |
0.2 |
0.4 |
1.3 |
3.0 |
1.0 |
0.3 |
0.6 |
1.8 |
3.9 |
1.5 |
0.5 |
0.7 |
2.3 |
4.8 |
2.0 |
0.6 |
0.8 |
2.6 |
5.5 |
2.5 |
0.6 |
0.9 |
3.0 |
6.2 |
Attachment 2
DOE Lessons Learned (www.eh.doe.gov/ll) was forwarded to you by the ALARA Center. If you have questions about Lessons Learned, please visit the DOE Lessons Learned website.
Title: YELLOW – Don’t Let Your Guard Down When Preparing Facilities for Decommissioning and Decontamination
Lesson ID: 2007-CH-BNL-ERP-001 (Source: User Submitted)
Originator: Brookhaven National Laboratory Environmental Restoration Projects
Date: 6/4/2007 Contact: Dean Atchison, (631) 344-7854, atchison@bnl.gov
Classifier: N/A Reviewer: Edward A. Sierra
Statement: – When reducing system operations and building occupancy while preparing facilities for decommissioning and decontamination (D&D), a formal assessment of the need for active systems and their operation should be performed to eliminate unnecessary systems as soon as practical. Prompt de-activation of systems that are no longer needed will reduce the risks from system component failure and minimize surveillance and maintenance needs.
– System operations manuals/procedures should be revised and reissued to reflect the modified functionality of systems remaining in operation to support D&D of a facility. This includes the need for routine system surveillance and functionality checks of alarm annunciation panels.
– Facilities that are being deactivated in preparation for D&D are vulnerable to a loss of continuity in required routine inspections and maintenance. This may occur due to the departure of key personnel previously responsible for implementing surveillance and maintenance or the result of inadequate planning.
– When deactivating facilities in preparation for D&D there is the potential for adverse “system” effects when components are operating in a state of disrepair. Allowing a system to operate with a component in a state of disrepair (e.g. cooling tower cooling fins) can lead to the failure of a significant component (e.g. pump seal failure from tower debris) within the system.
Discussion: On September 19, 2006, Brookhaven National Laboratory’s (BNL) permanently shutdown High Flux Beam Reactor (HFBR) experienced extensive flooding within the reactor building due to mechanical failure of an air conditioning unit cooling water pump seal. Approximately 26,000 gallons of water originating from the BNL domestic water system was spilled into the equipment level of the reactor building. Although the source of the spilled water contained no hazardous or radioactive contaminants, analyses of samples removed from the accumulated spilled water within the HFBR indicated elevated tritium concentrations. The clean air conditioning water that was released in the building absorbed residual tritium from within the HFBR. As a result, all 26,000 gallons of spilled water was handled and processed as liquid radioactive waste.
Analysis: A team was commissioned to conduct an independent investigation and causal analysis of this event using the “Barrier Analysis” technique. The causal analysis resulted in the identification of the following list of root causes:
– Supervisory alarms “disabled” eliminating remote alarm function
– HFBR D&D status resulted in reduced maintenance of alarm panel
– HFBR D&D status resulted in reduced maintenance of air conditioning cooling towers
– Inadequate management control for the reductions in Surveillance and Maintenance (S&M) of the remaining systems while preparing the HFBR for near and long-term D&D
Actions: The following recommendations were proposed to prevent recurrence of this event:
– Perform an analysis of the remaining active systems within the HFBR and determine its need and necessity throughout the remainder of the near and long-term D&D activities. Based on the results of the analysis, remove unnecessary systems from service and modify remaining systems to meet the current needs.
– Install a leak detection system in vicinity of remaining liquid systems within the HFBR.
– Revise the HFBR S&M manual to reflect routine scheduled maintenance necessary to ensure the HFBR is maintained in a safe, reliable and compliant condition.
Savings: Avoidance of leaking water into a radiologically controlled area saves approximately $15/gallon in remediation cost.
Keywords: DECOMMISSIONING AND DECONTAMINATION,
SURVEILLANCE AND MAINTENANCE, DEACTIVATING
Hazard(s): Environmental Release, Radiological Release
ISM Code(s): Analyze Hazards, Define Work, Develop / Implement Controls
Work Function(s): Decontamination & Decommissioning, Maintenance – Facility
References: Occurrence Report – “HFBR Air Conditioning Water Pump Seal Leak” EM–BHSO-BNL-HFBR-2006-0001
Priority Descriptor: Yellow / Caution
Attachment 3
Fixative Common Name |
Chemical |
Typical Use |
Hanford MSDS |
Notes |
Encapsulation Technologies, LLC www.fogging.com
E T Glycerin Solution (ETGS) |
1,2,3- Propanetriol |
Applied as an aerosol to underground pits or rooms. Aerosol deposits a sticky film on all surfaces which covers all removable contamination and prevents spread. |
057158 |
Fixative washes off easily with water or rain. Does not foul operating mechanisms or jumper fasteners in valve pits. Does not contain sugar. Can also be sprayed. Used at Tank Farms and PFP |
Encapsulation Technologies, LLC www.fogging.com
ETGS Invisible Blue |
1,2,3 – Propanetriol UV – Blue Dye |
Applied as an aerosol to underground pits or rooms. Aerosol deposits a sticky film on all surfaces which covers all removable contamination and prevents spread. |
057802 |
Fixative washes off easily with water or rain. Does not foul operating mechanisms or jumper fasteners in valve pits. Does not contain sugar. Used Site wide. The invisible blue shows up in black light so coating thickness can be estimated. |
Encapsulation Technologies, LLC www.fogging.com
Capture Permacoat |
Latex flexible impermeable barrier |
Sprayed, rolled or brushed for permanent contamination encapsulation |
062366 |
Originally formulated for ocean- going cargo containers. Very durable and very resistant to the elements |
Midwest Industrial Supply, Inc. www.midwestinc.com Soil Sement |
Polymer Emulsion |
Normally sprayed onto surface to seal contamination in place. Has been used inside buildings to capture asbestos, beryllium, and radioactive contamination. It’s cheap, easy to apply, and dries to a hard surface. Can be applied with fire hose, which makes it easier to spray large areas. |
035321 |
Fixative does not wash off easily with water or rain. Fouls operating mechanisms or jumper fasteners in valve pits. Not normally used in valve pits. Does not contain sugar. Used at 233-S by Fluor Hanford. Point of contact for details mixing Soil Cement is: Curt Kooiker at: 509-373-3461. WCH mixes at 10:1 ratio of water to Soil Sement for covering soil. Ratio is 4:1 for inside 300 Area buildings. |
Sanchem Inc. www.sanchem.com
Safegard 5022-A |
Water and Glue |
Normally sprayed onto surface. Seals contamination in place. |
20641 |
Fixative does not wash off easily with water or rain. Fouls operating mechanisms or jumper fasteners in valve pits. Not normally used in valve pits. Does not contain sugar. Used at Tank Farms |
Bartlett Services, Inc www.Barlettinc.com
PBS |
Polymeric Barrier System (PBS) |
Can be applied by industrial spray equipment, paint rollers, or brushes. Seals contamination in place. Need proper ventilation. |
032197 |
Very hard to remove. Great for long term use inside or outside. Can be diluted with water. Used Site wide. Seals bare lead to keep it from oxidizing. Has been used to “cocoon” large items that have to be left outside. |
Bartlett Services, Inc. www.Barlettinc.com
TLC Stripcoat |
Temporary Layered Coatings – Strippable Coating |
Can be sprayed, rolled, or brushed. Several light coats recommended. Seals contamination in place, peel-off after recommended time frames. |
035971 Ammonia free
031937 with Ammonia |
Easy removal. Peels up after a recommended time frame. Used Site wide. Drying time depends on temperature, thickness, and ventilation. Both products are non-hazardous after drying. Does not peel up easily if left outside for several days. Product is affected by sun’s UV rays. |
Rust Doctor www.therustdoctor.com |
Water based latex paint. |
Can be sprayed, rolled or brushed on. Seals contamination in place when it converts from rust to magnetite. |
065590 |
This unique product chemically converts rusty metal to black magnetite, which is a very hard form of iron oxide. Very hard to remove. Used by BHI at 100N |
Specialty Products Inc. www.specialty- products.com
(SPI) Polyshield SS-100 |
Pure Polyurea Elastomer |
Sprayed over a broad range of ambient and substrate temperatures. Seals contamination in place. |
7629T- 599 |
This system is based on amine- terminated polyether resins, amine chain extenders and MDI prepolymers. It provides a flexible, tough, resilient monolithic membrane. Used at 100N cribs. |
Williams Power Co. www.mcnamara@wmsgrpi ntl.com
ALARA 1146 Strippable Coating Report DOE/EM-0533 |
Water-Borne Vinyl Butyl Strippable Coating |
Can be sprayed, rolled, brushed, poured or squeegeed onto the surface. Seals contamination in place and peels up. |
14254A |
Free of solvents and toxic materials. Rapid application/removal. Reduces waste volumes. Easy peel-up features after recommended time frames. Drying times depend on temperature, thickness and ventilation. Read about ALARA 1146 at http://apps.em.doe.gov/ost/ Click on “Reports”, then Innovative Technology Reports and scroll to “ALARA 1146 “. Used Site wide. |
Sherwin Williams www.Sherwin- williams.com Polyurea Special Protective Coating (SPI) Formally known as: Envirolastic AR 425 |
Polyurea Elastomer |
Sprayed on over a board range of ambient and substrate temperatures. Seals contamination in place. |
054806 054807 |
It provides a tough, flexible, resilient monolithic membrane. Used at Tank Farms, 222-S and BHI. Tank Farms wrote a Test Report #RPP-7806 on the chemical compatibility and physical characteristics of polyurea. You can find on the RMIS Database at Accession # D8660842. |
Instacote Inc. www.instacote.com
Instacote SE |
Sprayable Polyurea Elastomer |
Spray on application. Seals contamination in place. Meets DOT regulations. |
056074 056075 |
Rapid curing. Impervious to moisture during application and immediately following. A very strong penetration-resistant coating. |
Instacote Inc. www.instacote.com
Instacote CC Epoxy 609 |
Two component low viscosity rapid setting epoxy. Epoxy Encapsulation Media, Curing agent |
CC Epoxy is a fixative control agent used to effectively grout piping/plumbing closed and will render any contamination within pipe locked down. |
060070 060071 |
Contamination Control Fixative. CC Epoxy 609 is compatible with Beryllium, radiological nucleotides (Plutonium and Uranium) and asbestos. Viscosity similar to water and rapidly cures to a solid. |
Instacote Inc. www.instacote.com
Instacote CC FIX |
High solids latex based product. Vinyl Latex/Modified Poly Acrylate Coating |
CC Fix can be brushed, rolled, misted, or spray applied. Seals contamination in place, leaving a hard rugged coating. |
062744 |
Contamination Control Fixative. Designed to encapsulate and fix contaminates. Great for walls, floors, etc. allowing work to progress, by leaving a hard rugged coating. Is similar to latex paint |
Instacote Inc. www.instacote.com
Instacote CC Strip |
Vinyl Acrylic Latex Strippable Coating. |
CC Strip is water based and can be sprayed or brushed on. Seals contamination in place and peels up easily. |
Not Available |
Loose contamination is encapsulated in the CC Strip and is removed when it is peeled off. Highly effective in reducing contaminated areas. |
Instacote Inc. www.instacote.com
Instacote CC WET |
Water based Anti- dusting Media |
Spray applied. Controls contamination from spreading. Adheres contaminates in place and never dries out. |
062550 |
Helps prevent airborne areas from occurring. Great for beryllium and asbestos abatement projects. Seems to be similar to glycerin and water. |
Instacote Inc www.instacote.com
Instacote SE Cured Plastic |
|
|
062801 |
|
Instacote Inc www.instacote.com CC T207 |
Made from water, glycerin, propylene glycol |
|
063058 |
|
Soil Conditioner: AgriGator Terra Bond www.pildyshtech.com/terra -bond.htm http://www.agrigator.com/ LABELS&MSDS/GatorLa bel.pdf www.agrigator.com |
Water based anti- dusting media Company will mix additives to lower cure temperature, prevent freezing, and make more pliable. |
Spray applied. Effectively controls visible dust emissions & potential spread of contamination. |
060804 |
Has been used at 100N by WCH. Product comes in liquid form and is easier to dilute than Soil Cement in dry form, and results in more consistent mixtures. Much cheaper than other fixatives.
Used for general dust suppression |
D&D Emulsions www.ddemulsionsinc.com 419-525-4988 D&D Emulsions (419) 522-9440
Dust Bond |
Dust control product that is formulated using a virgin adhesive petroleum resin suspended in a stable emulsion. |
Contact ALARA Center for a report that compares Roadmaster, Dust Bond, Durasoil, and Guar Tackifier
Sprayed. It penetrates, saturates, and bonds surface dust for a dust- free resilient surface |
064971 |
Used for heavy-duty dust suppression by BHI in 100 areas. It is diluted with water for spraying. The cohesive resins penetrate the soil surface and attach themselves to the dusty fine particles, clustering them into particles that are too large to become airborne. The clustering of the particles aids in binding loose contamination and stabilizing the soil for easier excavation. |
Dumond Chemicals Inc. www.dumondchemicals.co m
Certane 1000 Topcoat Certane 2000 Overcoat |
Fixative Latex Based |
They are a unique, versatile penetrating encapsulants for porous sprayed on asbestos/soil.
Certane 1000 is sprayed to encapsulate and bind fibers after asbestos removal. Certane 2000 seal-coats sprayed on insulation. |
Certane 1000 is 014786
Certane 2000 is 014787 |
Rapidly saturates loose or friable asbestos fibers, curing to a tough coating.
Another product is Certane 2050 that will penetrate the soil and cure to a tough, yet resilient coating.
Dumond Chemicals also sell paint removers called Peel Away. See MSDS #033465 & #062829 |
Spraylat Corporation |
Peelable and |
Sprayed on products to |
023975 |
Has been used as a protective |
|
protective coatings |
provide a protective |
044659 |
coating for complex items that |
|
barrier. |
061011 |
have to be shipped over public |
|
entextlong.asp?miKey=44 |
|
|
14047 |
roads. Often sprayed over new |
|
|
|
16384 |
boats to eliminate damage from |
|
|
|
16624 |
the elements during shipment to |
|
|
|
|
dealers and for storing the boats |
|
|
|
|
outside. |
Serpiflex Shield SSC06 |
Aerosol Can with |
Sprayed from aerosol |
016024 |
Used by insulators to seal |
water-based vinyl |
can onto asbestos to |
|
asbestos lagging after core |
|
ction.com/custom/firestops/ |
acrylic chemicals |
restrict airborne fibers. |
|
sampling. Can be used as a |
downloads/abatement/AB- |
|
|
|
removal and post-removal |
310A.pdf |
|
|
|
encapsulant with glove bag |
|
|
|
|
operations. Will seal radioactive |
|
|
|
|
contamination too. |
Serpiflex Shield SSA12 |
Concentrated water- |
Used to encapsulate |
016025B |
Has been tested and found to be |
|
based vinyl acrylic |
asbestos fibers. It is |
|
effective for at least 20 years. |
|
with flame-retardant |
nontoxic, non- |
|
|
|
fillers |
combustible and |
|
|
|
|
doesn’t contain any |
|
|
|
|
solvents or silicates. |
|
|
Fiberlock Technologies, |
High solids |
Used to seal insulatio0n |
027199 |
See www.fiberlock.com Dries in |
Inc |
encapsulant for |
fibers and cover fibers |
|
1-2 hours. One gallon covers |
Lag-Cote (6424) and Lag- |
insulation |
on steel, wood, |
|
~150 ft2 with paint brush or 600 |
Cote II (6420) |
|
masonry, and other |
|
ft2 with air-less sprayer |
|
sound surfaces. |
|
|
|
gr/aec.htm |
|
|
|
|
FEVDI Contamination Fixatives LP3 and LP4 |
Water-borne acrylic copolymers, soluble in water in any proportion. Non- hazardous and non- flammable |
Can be used as a temporary or permanent fixative. Can be sprayed, rolled or brushed. They contain no carcinogens. |
LP3 is 063600 LP4 is 063601 Alcatum is 063602 |
Both LP3 and LP4 can be easily removed from a surface (even after months or years) by first spraying with a small amount of ALCATUM manufactured by FEVDI, and then, after 3-5 minutes, by rinsing with high pressure water. Made in France-Cost is $45- $90/gal shipped to Hanford |
Acrylic Paint |
Exterior paint can be a good fixative if there is a way to apply it. |
Sprayed, rolled or brushed. |
Various |
Often, the best fixative is exterior acrylic paint. It’s cheap and painters are familiar with how to apply it. |
Pre Prime 167 Rust Penetrating Sealer sold by Devoe High Performance Coatings at 1-888-424- 2847 Option 1.
http://www.duspec.com/dat asheet/datasheet.pdf?docu mentFormat=pdf&systemS etId=13&productCode=167 &documentType=datasheet &submit=Get+Document |
100%Solids Epoxy Sealer for masonry surfaces and penetrates metal rust. Do not thin. |
May need respirators to apply. Penetrates up to 5 millimeters into concrete.
This company sell many other paints and sealers. Recommend checking the Website. |
058425 |
5 fixatives were compared to paint. Ekor was too expensive. Safe-Seal had 2 carcinogens. 3 remaining fixatives were tested and Pre-Prime applied easily, had good coverage, and fixed itself to concrete. It also penetrated into the concrete. Covers 25 sq metres per liter with 40 micron thickness. 30 hour dry time.
This sealer is a two component product supplied in 4 gallon and 1 gallon kits. Pour together slowly and use within 4 hours. We also purchase Devran 201 Universal Epoxy Primer from this company (MSDS 058426) |
A-B-C Asbestos Binding |
High solids |
Fixative for loose |
064434 |
PFP (Stubbs) tested the product |
Compound |
encapsulant, non- |
removable |
|
on concrete and it reacted similar |
Made by Fiberlock |
flammable; can be |
contamination. |
|
to PBS. Looks like a good |
Technologies |
diluted with up to 4 |
|
|
fixative that isn’t easily removed |
parts water, similar |
|
|
WCH has used it on radioactive |
|
pr/6421.htm |
to latex paint |
|
|
and Beryllium contamination |
WT-HS13 High Strength |
Similar to spray |
|
062721 |
|
Spray Adhesive |
contact cement |
|
||
Made in Port Orchard, WA |
|
|
||
|
|
|||
HS13.pdf |
|
|
Polo Dustcon
Sold by Ondeo Nalco Co www.senior.com/au/dustco n.htm |
Developed by mining industry to control dust. |
|
062367 |
A dust suppressant similar to Soil Sement or Terra-Bond |
SoilTac
Made by Soil Works LLC, at (800) 545-5420 or |
Polymer emulsion similar to Soil Sement, only cheaper. |
|
064689 |
A dust suppressant similar to Soil Sement or Terra Bond. Applied with a fire hose to debris piles during D&D. |
Roadmaster Liquid Calcium Chloride
http://www.tetrachemicals. com/Products/Calcium_Chl oride/Liquid_Calcium_Chl oride/ROADMASTER.aqf |
Liquid Calcium Chloride. Recommended application rate is |
Surface dust control, soil stabilization on unpaved roads, road shoulders, embankments, stockpiles and construction sites. |
|
Contact ALARA Center for a report that compares Roadmaster, Dust Bond, Durasoil, and Guar Tackifier |
Durasoil
http://www.durasoil.com/in dex.php |
Recommended Application Rates are at: http://www.durasoil. com/apprates.php |
Ultra-pure synthetic organic fluid |
063794 |
Can be applied, regardless of weather conditions. Contact ALARA Center for a report that compares Roadmaster, Dust Bond, Durasoil, and Guar Tackifier |
Guar Tackifier
http://www.southwestenvir onment.com/tackifiers.asp |
Usage per acre – apply at a rate of 30 lbs of ENVIRO- TAK with 150 lbs of fiber mulch in 800 gallons of water and apply as an overspray. |
|
|
Contact ALARA Center for a report that compares Roadmaster, Dust Bond, Durasoil, and Guar Tackifier |
Attachment 4
Guidelines for Decontaminating a Spill Area that Can’t be Released within a Few Days
Sometimes radioactive material is spread when a spill occurs. If the spill is in a small area, it can usually be cleaned up quickly and the area released from radiological controls. Some spills are much larger and occur on complex surfaces that contain crevices or surfaces that absorb the contamination, i.e., soil. The following guidelines may be useful in establishing a disciplined process to contain the spill and then attack the cleanup and release of the spill area.
Copyright Soilworks, LLC 2003-. All Rights Reserved. Soilworks®, Soiltac®, Gorilla-Snot®, and Durasoil®are registered trademarks of Soilworks, LCC.
Copyright Soilworks, LLC 2003-. All Rights Reserved. Soilworks®, Soiltac®, Gorilla-Snot®, and Durasoil® are registered trademarks of Soilworks, LCC.