OAR 333-061-0065
Operation and Maintenance

(1)

Public water systems shall be operated and maintained in a manner that assures continuous production and delivery of potable water by:

(a)

Operating all phases and components of the system effectively in the manner for which they were designed;

(b)

Assuring that all leaks are promptly repaired and, broken or malfunctioning equipment is promptly repaired or replaced;

(c)

Making readily available and in good condition the proper equipment, tools and parts to make repairs to the system. When possible, notice shall be given to the water users of impending repairs that will affect the quality of the water or the continuity of the water service. All repairs must meet the construction standards of these rules and comply with disinfection requirements of OAR 333-061-0050 (Construction Standards) prior to reestablishing use of the repaired portion of the system;

(d)

Implementing actions to assure safe drinking water during emergencies. Water suppliers seeking a state certified wellhead protection program for their water system shall comply with the contingency planning requirements as prescribed in OAR 333-061-0057 (Voluntary Drinking Water Protection Program)(5).

(2)

Personnel:

(a)

Personnel responsible for maintenance and operation of public water systems shall be competent, knowledgeable of all the functions of that particular facility and shall have the training and experience necessary to assure continuous delivery of water which does not exceed the MCLs;

(b)

Certification as prescribed by OAR 333-061-0210 (Operator Certification: Scope) through 333-061-0272 (Suspension of Certification) is required for personnel in direct responsible charge of operations for all community and NTNC water systems.

(c)

Personnel responsible for operating water treatment plants at TNC water systems using water sources classified as surface water or GWUDI must attend the Authority’s “Essentials of Surface Water Treatment” training course or an equivalent training.

(3)

The identity of ownership of a water system shall be filed with the Authority. Notification of changes in ownership shall be filed immediately with the Authority upon completion of the transaction.

(4)

All public water systems must maintain a current water system operations manual.

(a)

The water system operations manual shall be completed according to the requirements of the capacity assessment or sanitary survey and shall be reviewed and updated at least every five years. If a public water system applying for funds from the Safe Drinking Water Revolving Loan Fund Program is required to develop a water system operations manual as a part of a capacity assessment, then the water system operations manual is required to be completed before final payout of the loan.

(b)

As evidence of completion, public water systems shall submit a statement to the Authority certifying that the water system operations manual has been completed according to the requirements in this rule, and that staff have been instructed in the use of the water system operations manual.

(c)

The water system operations manual shall include, but is not limited to, the following elements if they are applicable:

(A)

Source operation and maintenance;

(B)

Water treatment operation and maintenance;

(C)

Reservoir operation and maintenance;

(D)

Distribution system operation and maintenance; and

(E)

Written protocols for on-site operators describing the operational decisions the operator is allowed to make under OAR 333-061-0225 (General Requirements Applying to Water Suppliers and Water Systems).

(d)

Water system staff shall be instructed and trained in the use of the water system operations manual.

(5)

Documents and records. The following documents and records shall be retained by the water supplier at community water systems and shall be available when the system is inspected or upon request by the Authority:

(a)

Complete and current as-built plans and specifications of the entire system and such other documents as are necessary for the maintenance and operation of the system;

(b)

Current operating manuals covering the general operation of each phase of the water system;

(c)

A current master plan and revisions thereof;

(d)

Data showing production capabilities of each water source and system component;

(e)

Current records of the number, type and location of service connections;

(f)

Current records of raw water quality, both chemical and microbiological;

(g)

Current records of all chemicals and dosage rates used in the treatment of water;

(h)

Reports on maintenance work performed on water treatment and delivery facilities;

(i)

Records relating to the sampling and analysis undertaken to assure compliance with the maximum contaminant levels;

(j)

Record of residual disinfectant measurements, where applicable;

(k)

Records of cross connection control and backflow prevention device testing, where applicable;

(l)

Records of customer complaints pertaining to water quality and follow-up action undertaken;

(m)

Fluoridation records, where applicable;

(n)

Other records as may be required by these rules.

(6)

Water Treatment Operations:

(a)

Chlorinators and other equipment used to apply chemicals at a public water system shall be operated and maintained in accordance with the manufacturers’ specifications and recommendations for efficient operation and safety.

(b)

When chlorine is used as the disinfectant, the procedures shall be as follows:

(A)

Chlorine shall be applied in proportion to the flow;

(B)

For reasons other than the treatment of surface water sources or groundwater sources under the direct influence of surface water, the rate of application shall be sufficient to result in a free chlorine residual of at least 0.2 mg/l after a 30-minute contact time and throughout the distribution system;

(c)

When ammonia is added to the water with the chlorine to form a chloramine as the disinfectant, for reasons other than the treatment of surface water sources or groundwater sources under the direct influences of surface water, the rate of application shall result in a combined chlorine residual of at least 2.0 mg/l after a three-hour contact time;

(d)

When corrosion control chemicals are applied to achieve compliance with the action levels for lead and copper, the point of application shall be after all other treatment processes, unless determined otherwise by the Authority.

(e)

At water systems where cartridge filters are used, the filters must be changed according to the manufacturer’s recommended pressure differential.

(7)

When an emergency arises within a water system which affects the quality of water produced by the system, the water supplier shall notify the Authority immediately.

(8)

Water suppliers must complete an Authority approved start-up procedure prior to serving water to the public at all seasonal water systems as defined in OAR 333-061-0020 (Definitions)(118). The start-up procedure may include a requirement to conduct additional monitoring at the discretion of the Authority. A water supplier may be exempted from some or all of the requirements related to start-up of a seasonal water system if the entire distribution system remains pressurized during the entire period that the water system is not operating. Failing to complete an Authority-approved start-up procedure at a seasonal water system prior to serving water to the public is a violation of treatment technique requirements and of this rule.

Source: Rule 333-061-0065 — Operation and Maintenance, https://secure.­sos.­state.­or.­us/oard/view.­action?ruleNumber=333-061-0065.

333‑061‑0005
Purpose 333‑061‑0010
Scope 333‑061‑0015
Adoption by Reference 333‑061‑0020
Definitions 333‑061‑0025
Responsibilities of Water Suppliers 333‑061‑0030
Maximum Contaminant Levels and Action Levels 333‑061‑0031
Maximum Residual Disinfectant Levels 333‑061‑0032
Treatment Requirements and Performance Standards for Surface Water, Groundwater Under Direct Influence of Surface Water, and Groundwater 333‑061‑0034
Treatment Requirements and Performance Standards for Corrosion Control 333‑061‑0036
Sampling and Analytical Requirements 333‑061‑0040
Reporting and Record Keeping 333‑061‑0042
Public Notice 333‑061‑0043
Consumer Confidence Reports 333‑061‑0045
Variances 333‑061‑0046
Permits 333‑061‑0050
Construction Standards 333‑061‑0055
Waivers from Construction Standards 333‑061‑0057
Voluntary Drinking Water Protection Program 333‑061‑0060
Plan Submission and Review Requirements 333‑061‑0061
Capacity Requirements for Public Water Systems 333‑061‑0062
Land Use Coordination 333‑061‑0063
Environmental Review Process for The Safe Drinking Water Revolving Loan Fund Program 333‑061‑0064
Emergency Response Plan Requirements 333‑061‑0065
Operation and Maintenance 333‑061‑0070
Cross Connection Control Requirements 333‑061‑0071
Backflow Prevention Assembly Installation and Operation Standards 333‑061‑0072
Backflow Assembly Tester Certification 333‑061‑0073
Cross Connection Specialist Certification 333‑061‑0074
Cross Connection Training Programs, Course, and Instructor Requirements 333‑061‑0075
Sanitary Surveys of Watersheds 333‑061‑0076
Sanitary Surveys 333‑061‑0077
Composite Correction Program & Comprehensive Performance Evaluations 333‑061‑0078
Coliform Investigations 333‑061‑0080
Role of Counties 333‑061‑0085
Supplemental Fluoridation 333‑061‑0087
Product Acceptability Criteria 333‑061‑0089
Annual Water System Fee 333‑061‑0090
Penalties 333‑061‑0095
Severability 333‑061‑0097
Adverse Health Effects Language 333‑061‑0098
References 333‑061‑0210
Operator Certification: Scope 333‑061‑0220
Classification of Water Treatment Plants and Water Distribution Systems 333‑061‑0225
General Requirements Applying to Water Suppliers and Water Systems 333‑061‑0228
Certification Requirements for Small Water System Operators 333‑061‑0230
Contracting For Services 333‑061‑0232
General Requirements Applying to Water System Operators 333‑061‑0235
Operator Certification Requirements, Levels 1–4 333‑061‑0245
Applications for Certification Levels 1–4 333‑061‑0250
Examinations for Certification, Levels 1–4 333‑061‑0260
Certificate Renewal Levels 1–4 333‑061‑0265
Fees 333‑061‑0270
Refusal, Suspension, or Revocation of Certification 333‑061‑0272
Suspension of Certification 333‑061‑0305
Domestic Well Program: Purpose 333‑061‑0310
Scope 333‑061‑0324
Area of Public Health Concern 333‑061‑0325
Domestic Well Tests 333‑061‑0330
Accredited Laboratories 333‑061‑0335
Sample Collection 333‑061‑0400
Reducing Lead in School Drinking Water 333‑061‑0510
Applicability of Cyanotoxin Rules 333‑061‑0520
Definitions 333‑061‑0530
Health Advisory Levels 333‑061‑0540
Cyanotoxin Monitoring 333‑061‑0550
Analytical Methods 333‑061‑0560
Reporting 333‑061‑0570
Public Notification 333‑061‑0580
Record Keeping
Last Updated

Jun. 8, 2021

Rule 333-061-0065’s source at or​.us