Precious Metals Recovery LLC RCRA Permit Application Dry Hills ...

Concrete walls in washrooms, janitors’ room, laundry room, and lunch room: coated
with epoxy enamel.
Concrete walls in service rooms: sealed with epoxy enamel.
Ceiling Finishes
All process and storage ceilings: suspended metal panels, sealed with epoxy enamel.
Offices and entrance lobby ceiling: acoustic tile on suspended metal grid system.
Washrooms: painted, suspended water-resistant gypsum board.
Service rooms: epoxy enamel.
Epoxy Paint Finish
Epoxy coatings will be applied on the floors and walls of the proposed TSF. Examples of
suitable coatings are: Stonclad GS, Stonshield HRI, and Stronglaze VSE. These products, or
functional equivalents, will be used. The specifications for these example products can be found
in Appendix 1-D.
1.1.2 Offices, Control Room, and Hygiene Area
The areas of the proposed TSF where mercury and mercury-bearing materials are treated, stored,
and managed are referred to as “dirty”; the areas of the proposed TSF where these activities do
not occur are referred to as “clean.”
The office and hygiene areas represent the clean portion of the proposed TSF. All employees and
authorized visitors will enter the building through the front door leading to the lobby area. The
lobby will provide access to the offices, conference room, lunch room, men’s and women’s
locker rooms, and storage closets.
The purpose of the hygiene area is to protect workers from inadvertently carrying mercury
contaminated dust or clothing from the plant spaces. It is designed to act as a buffer, separating
the areas of the facility where mercury and mercury-bearing materials are treated, stored, and
managed from those that are not.
Facility workers going from the clean area of the building to the process or storage area will first
have to enter their respective (men’s or women’s) clean locker room, where they will be required
to doff their street clothes and store them in lockers. They will then be required to proceed
through their respective shower room and into their respective dirty locker room, where their
work clothes and boots are stored. From the dirty locker rooms, facility workers can then
proceed to the plant spaces.
Authorized visitors to the proposed TSF will be required to follow a similar procedure, but will
don disposable protective coverings (e.g., Tyvek booties) and PPE as appropriate instead of
dedicated work clothes.
PMR RCRA Permit Application, Dry Hills Facility Page 10
JBR Environmental Consultants, Inc. | HATCH March 2013