Code of Maine Rules
90 - INDEPENDENT AGENCIES
429 - BOARD OF LICENSURE OF WATER SYSTEM OPERATORS (UNDER THE JURISDICTION THE DEPARTMENT OF HEALTH AND HUMAN SERVICES)
Chapter 1 - RULES RELATING TO THE LICENSURE OF WATER SYSTEM OPERATORS
Section 429-1-3 - WATER SYSTEM CLASSIFICATION

Current through 2024-38, September 18, 2024

A. CLASSIFICATION

1. Public water systems shall be classified according to two disciplines - Treatment and Distribution.

2. Public water systems shall be classified as set forth in this rule, based on system capacity, source, complexity of treatment, and other physical conditions affecting public water systems.

3. Systems shall retain an operator or operators duly licensed for Treatment System and Distribution System at the class level designated for the system.

4. The Board shall assign classification value points to treatment technologies not listed in the point rating schedule on a case-by-case basis.

5. If a treatment system or distribution system will be upgraded in class as a result of changes being made to the system, and the operator of that system does not hold the appropriate license for the upgraded class, the operator must upgrade the license by passing the appropriate level(s) of examination within 90 days of the system upgrade. Failure to pass the appropriate examination will make the operator ineligible to continue to operate the system. The system must then employ a licensed operator or enter into a contractual agreement with a licensed operator of proper classification.

B. PUBLIC WATER SYSTEM CLASSES

1. Treatment classification is determined by a point system, as outlined in Appendix A and Table 1 below:

Table 1. Treatment Classification

Classification

Total Points (From App. A.)

Very Small Water System (VSWS)

19 or less and serving <500 Pop.

Class I

19 or less

Class II

20 to 34

Class III

35 to 47

Class IV

48 or more

2. Distribution classification is based on population served as outlined in Table 2 below.

Table 2. Distribution Classification

Classification

Population Served

Class I

1,500 and less

Class II

1,501 to 15,000

Class III

15,001 to 50,000

Class IV

50,001 and over

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