236 CMR 3.02
Classification of Public Water System Operators
The purpose for the certification of public water system operators is to insure the proper
management, operationand maintenance ofa public water system. The various grades of certificates
shall be issued in accordance with the demonstrated skill, knowledge, experience and character of the
operator.
(1) In a Class VND (Water Vending Machine) public water system, the person with the responsibility
for making process control/system integrity decisions about water qualityor quantitythat affect public
health, and having active field supervision of, distribution and/or treatment activities must hold a Grade
VND certificate.
(2) In a Class VSS (Very Small System) public water system, the person with responsibility for,
making process control/system integrity decisions about water quality or quantity that affect public
healthand having active field supervision of, distribution and/or treatment activities must hold a Grade
VSS or higher grade certificate.
(3) In a Class I public water system, the person with responsibility for making process control/system
integrity decisions about water quality or quantity that affect public health, and having active field
supervision of, distribution and/or treatment activities must hold the appropriate Grade 1 or higher
grade treatment or distribution certificate.
(4) In a Class II public water system, the person with responsibility for making process control/system
integrity decisions about water quality or quantity that affect public health, and having active field
supervisionof, distributionand/ortreatment activities must hold an appropriate Grade 2 or higher grade
treatment or distribution certificate.
(5) In a Class III public water system, the person with responsibilityformakingprocesscontrol/system
integrity decisions about water quality or quantity that affect public health, and having active field
supervision of, distribution and/or treatment activities must hold an appropriate Grade3 orhighergrade
treatment or distribution certificate.
(6) In a Class IV public water system, the personwithresponsibilityformaking process control/system
integrity decisions about water quality or quantity that affect public health, and having active field
supervision of, distribution and/or treatment activities must hold an appropriate Grade 4 treatment or
distribution certificate.
(7) An individual may apply for certificationand, after passing the Board examination, shall be certified
in the highest grade for which he/she qualifies, except that experience in a Class VSS or Class VND
public water supply may not be used toward qualifying for any higher grade (Grades 1D through 4D
or Grades 1T through 4T).
236 CMR: BOARD OF CERTIFICATION OF OPERATORS
OF DRINKING WATER SUPPLY FACILITIES
3.02: continued
(8) Certificate holders who were issued certificates in Grades 1, 2, 3 and 4 under the original
"grandfather clause" or by written examination through December 31, 1989 shall be automatically
credited with holding both distribution and treatment certification in accordance with the following
table:
Certification Grade
Certification Grade
as of 12/31/89
after 12/31/89
1
1C
2
2C
3
3C
4
4C