SECTION 252:626-11-1. Chemical application

  Chemicals must be listed by NSF or UL as meeting ANSI/NSF Standards 60 and 61. All containers shall be labeled with the following information: chemical name, chemical purity, chemical concentration, supplier name and supplier address. Do not apply any chemical to drinking water unless specifically permitted by the DEQ.

(1)   Plans and specifications. Include the following:

(A)   description of equipment, including maximum and minimum feed ranges,

(B)   location, piping layout and points of application,

(C)   storage and handling facilities,

(D)   specifications for chemicals to be used,

(E)   operating and control procedures, including proposed applications rates, and

(F)   descriptions of testing equipment and procedures.

(2)   Chemical application. Include points of application to meet the following:

(A)   assure maximum efficiency of treatment,

(B)   assure maximum safety to consumer,

(C)   provide maximum safety to operators,

(D)   assure satisfactory mixing of the chemicals with the water,

(E)   provide maximum flexibility of operation through multiple application points,

(F)   prevent backflow or back-siphonage between common manifolds, and

(G)   chemical's physical characteristics (viscosity, density, etc.) in determining the type and location of feed equipment.

(3)   General equipment design. General equipment design must:

(A)   ensure that feeders will be able to supply the necessary amounts of chemicals at an accurate feed rate throughout the plant operating range,

(B)   specify chemical resistant material any place where operating procedures will require transport or contact with chemicals,

(C)   ensure that corrosive chemicals are introduced in such a manner to minimize potential for corrosion, and

(D)   ensure that incompatible chemicals are not fed, stored, handled, or disposed of together.

[Source: Added at 18 Ok Reg 1612, eff 6-1-01; Amended at 25 Ok Reg 2304, eff 7-11-08]