Chapter 246-290 WAC

Last Update: 5/13/24

GROUP A PUBLIC WATER SUPPLIES

WAC Sections

PART 1.
GENERAL PROVISIONS
HTMLPDF246-290-001Purpose and scope.
HTMLPDF246-290-002Guidance.
HTMLPDF246-290-010Definitions, abbreviations, and acronyms.
HTMLPDF246-290-020Applicability.
HTMLPDF246-290-025Adoption by reference.
HTMLPDF246-290-030General administration.
HTMLPDF246-290-035Water system ownership.
HTMLPDF246-290-040Engineering requirements.
HTMLPDF246-290-050Enforcement.
HTMLPDF246-290-060Variances, exemptions, and waivers.
PART 2.
PLANNING AND ENGINEERING DOCUMENTS
HTMLPDF246-290-100Water system plan.
HTMLPDF246-290-105Small water system management program.
HTMLPDF246-290-106Duty to provide service.
HTMLPDF246-290-107Place of use expansion.
HTMLPDF246-290-108Consistency with local plans and regulations.
HTMLPDF246-290-110Project report.
HTMLPDF246-290-120Construction documents.
HTMLPDF246-290-125Project report and construction document submittal exceptions.
HTMLPDF246-290-130Source approval.
HTMLPDF246-290-131Emergency sources and supplies.
HTMLPDF246-290-132Interties.
HTMLPDF246-290-135Source water protection.
HTMLPDF246-290-140Existing system as-built approval.
PART 3.
DESIGN OF PUBLIC WATER SYSTEMS
HTMLPDF246-290-200Design standards.
HTMLPDF246-290-220Drinking water materials and additives.
HTMLPDF246-290-221Water demand design criteria.
HTMLPDF246-290-222Water system physical capacity.
HTMLPDF246-290-230Distribution systems.
HTMLPDF246-290-235Finished water storage facilities.
HTMLPDF246-290-250Treatment design.
PART 4.
WATER QUALITY
HTMLPDF246-290-300Monitoring requirements.
HTMLPDF246-290-310Maximum contaminant levels (MCLs) and maximum residual disinfectant levels (MRDLs).
HTMLPDF246-290-315State action levels (SALs) and state maximum contaminant levels (MCLs).
HTMLPDF246-290-320Follow-up action.
PART 5.
WATER SYSTEM OPERATIONS
HTMLPDF246-290-415Operations and maintenance.
HTMLPDF246-290-416Sanitary surveys.
HTMLPDF246-290-420Reliability and emergency response.
HTMLPDF246-290-451Disinfection of drinking water.
HTMLPDF246-290-453Corrective action under the GWR.
HTMLPDF246-290-455Operation of chemical contaminant treatment facilities.
HTMLPDF246-290-460Fluoridation of drinking water.
HTMLPDF246-290-470Uncovered finished water storage facilities.
HTMLPDF246-290-480Recordkeeping and reporting.
HTMLPDF246-290-485Recordkeeping and reporting for groundwater systems.
HTMLPDF246-290-490Cross-connection control.
HTMLPDF246-290-496Metering requirements.
HTMLPDF246-290-500Severability.
PART 6.
SURFACE WATER TREATMENT
Subpart A - Introduction and General Requirements
HTMLPDF246-290-601Purpose of surface water treatment.
HTMLPDF246-290-620Applicability of surface water treatment requirements.
HTMLPDF246-290-630General requirements.
HTMLPDF246-290-632Treatment technique violations.
HTMLPDF246-290-634Follow-up to treatment technique violations.
HTMLPDF246-290-636Determination of disinfectant contact time (T).
HTMLPDF246-290-638Analytical requirements.
HTMLPDF246-290-639SWTR records.
HTMLPDF246-290-640Determination of GWI sources.
Subpart B - Requirements for Filtered Systems
HTMLPDF246-290-650Compliance requirements for filtered systems.
HTMLPDF246-290-652Filtration technology and design criteria for existing filtered systems.
HTMLPDF246-290-654Treatment criteria for filtered systems.
HTMLPDF246-290-660Filtration.
HTMLPDF246-290-662Disinfection for filtered systems.
HTMLPDF246-290-664Monitoring for filtered systems.
HTMLPDF246-290-666Reporting for filtered systems.
HTMLPDF246-290-668Watershed control.
Subpart C - Requirements for Systems Installing Filtration Facilities
HTMLPDF246-290-670Compliance requirements for existing unfiltered systems installing filtration.
HTMLPDF246-290-672Interim treatment requirements.
HTMLPDF246-290-674Interim monitoring and reporting.
HTMLPDF246-290-676Filtration technology and design criteria.
HTMLPDF246-290-678Reliability for filtered systems.
Subpart D - Requirements for Other Unfiltered Systems
HTMLPDF246-290-686Compliance requirements for unfiltered systems.
HTMLPDF246-290-690Criteria to remain unfiltered.
HTMLPDF246-290-691Criteria for unfiltered systems with a "limited alternative to filtration" to remain unfiltered.
HTMLPDF246-290-692Disinfection for unfiltered systems.
HTMLPDF246-290-694Monitoring for unfiltered systems.
HTMLPDF246-290-696Reporting for unfiltered systems.
PART 7.
REPORTING
Subpart A - Public Notification and Consumer Information
HTMLPDF246-290-71001Public notification.
HTMLPDF246-290-71002Public notice content.
HTMLPDF246-290-71003Public notification distribution.
HTMLPDF246-290-71004Public notification mandatory language.
HTMLPDF246-290-71005Special public notification requirements.
HTMLPDF246-290-71006Public notice for contaminants with a SAL and other unregulated contaminants.
HTMLPDF246-290-71007Public notification special provisions.
Subpart B - Consumer Confidence Reports
HTMLPDF246-290-72001Purpose and applicability of the consumer confidence report requirements.
HTMLPDF246-290-72002Reporting dates.
HTMLPDF246-290-72003Report contents—Source water.
HTMLPDF246-290-72004Report contents—Definitions.
HTMLPDF246-290-72005Report contents—Information on detected contaminants.
HTMLPDF246-290-72006Report contents—Information on Cryptosporidium, radon, and other contaminants.
HTMLPDF246-290-72007Report contents—Compliance with National Primary Drinking Water Regulations.
HTMLPDF246-290-72008Report contents—Variances and exemptions.
HTMLPDF246-290-72009Report contents—Additional information.
HTMLPDF246-290-72010Report contents—Required additional health information.
HTMLPDF246-290-72011Report delivery and recordkeeping.
HTMLPDF246-290-72012Regulated contaminants.
HTMLPDF246-290-72013Report contents—Groundwater systems.
PART 8.
WATER USE EFFICIENCY
HTMLPDF246-290-800Purpose and applicability.
HTMLPDF246-290-810Water use efficiency program.
HTMLPDF246-290-820Distribution system leakage standard.
HTMLPDF246-290-830Water use efficiency goal setting.
HTMLPDF246-290-840Water use efficiency performance reports.
FEES
HTMLPDF246-290-990Water system evaluation and project review and approval fees.
DISPOSITION OF SECTIONS FORMERLY CODIFIED IN THIS TITLE
246-290-115Corrosion control recommendation report. [Statutory Authority: RCW 43.20.050. WSR 94-14-001, § 246-290-115, filed 6/22/94, effective 7/23/94.] Repealed by WSR 99-07-021, filed 3/9/99, effective 4/9/99. Statutory Authority: RCW 43.02.050 [ 43.20.050].
246-290-210Source protection. [Statutory Authority: RCW 43.20.050. WSR 91-02-051 (Order 124B), recodified as § 246-290-210, filed 12/27/90, effective 1/31/91. Statutory Authority: RCW 34.04.045. WSR 88-05-057 (Order 307), § 248-54-125, filed 2/17/88. Statutory Authority: RCW 43.20.050. WSR 83-19-002 (Order 266), § 248-54-125, filed 9/8/83.] Repealed by WSR 93-08-011 (Order 352B), filed 3/25/93, effective 4/25/93. Statutory Authority: RCW 43.20.050.
246-290-240Disinfection of facilities. [Statutory Authority: RCW 43.20.050. WSR 91-02-051 (Order 124B), recodified as § 246-290-240, filed 12/27/90, effective 1/31/91. Statutory Authority: RCW 34.04.045. WSR 88-05-057 (Order 307), § 248-54-145, filed 2/17/88. Statutory Authority: RCW 43.20.050. WSR 83-19-002 (Order 266), § 248-54-145, filed 9/8/83.] Repealed by WSR 99-07-021, filed 3/9/99, effective 4/9/99. Statutory Authority: RCW 43.02.050 [ 43.20.050].
246-290-330Public notification. [Statutory Authority: RCW 43.20.050. WSR 94-14-001, § 246-290-330, filed 6/22/94, effective 7/23/94; WSR 93-08-011 (Order 352B), § 246-290-330, filed 3/25/93, effective 4/25/93; WSR 92-04-070 (Order 241B), § 246-290-330, filed 2/4/92, effective 3/6/92. Statutory Authority: Chapter 43.20 RCW. WSR 91-07-031 (Order 150B), § 246-290-330, filed 3/15/91, effective 4/15/91. Statutory Authority: RCW 43.20.050. WSR 91-02-051 (Order 124B), recodified as § 246-290-330, filed 12/27/90, effective 1/31/91. Statutory Authority: P.L. 99-339. WSR 89-21-020 (Order 336), § 248-54-187, filed 10/10/89, effective 11/10/89.] Repealed by WSR 99-07-021, filed 3/9/99, effective 4/9/99. Statutory Authority: RCW 43.02.050 [ 43.20.050].
246-290-400Operator certification. [Statutory Authority: RCW 43.20.050. WSR 91-02-051 (Order 124B), recodified as § 246-290-400, filed 12/27/90, effective 1/31/91. Statutory Authority: RCW 34.04.045. WSR 88-05-057 (Order 307), § 248-54-194, filed 2/17/88.] Repealed by WSR 93-08-011 (Order 352B), filed 3/25/93, effective 4/25/93. Statutory Authority: RCW 43.20.050.
246-290-410Small water system management program. [Statutory Authority: RCW 43.20.050. WSR 94-14-001, § 246-290-410, filed 6/22/94, effective 7/23/94; WSR 91-02-051 (Order 124B), recodified as § 246-290-410, filed 12/27/90, effective 1/31/91. Statutory Authority: P.L. 99-339. WSR 89-21-020 (Order 336), § 248-54-196, filed 10/10/89, effective 11/10/89. Statutory Authority: RCW 34.04.045. WSR 88-05-057 (Order 307), § 248-54-196, filed 2/17/88.] Repealed by WSR 99-07-021, filed 3/9/99, effective 4/9/99. Statutory Authority: RCW 43.02.050 [ 43.20.050].
246-290-430Continuity of service. [Statutory Authority: RCW 43.20.050. WSR 91-02-051 (Order 124B), recodified as § 246-290-430, filed 12/27/90, effective 1/31/91. Statutory Authority: RCW 34.04.045. WSR 88-05-057 (Order 307), § 248-54-205, filed 2/17/88. Statutory Authority: RCW 43.20.050. WSR 83-19-002 (Order 266), § 248-54-205, filed 9/8/83.] Repealed by WSR 99-07-021, filed 3/9/99, effective 4/9/99. Statutory Authority: RCW 43.02.050 [ 43.20.050].
246-290-440Operations. [Statutory Authority: RCW 43.20.050. WSR 94-14-001, § 246-290-440, filed 6/22/94, effective 7/23/94; WSR 93-08-011 (Order 352B), § 246-290-440, filed 3/25/93, effective 4/25/93; WSR 91-02-051 (Order 124B), recodified as § 246-290-440, filed 12/27/90, effective 1/31/91. Statutory Authority: RCW 34.04.045. WSR 88-05-057 (Order 307), § 248-54-215, filed 2/17/88. Statutory Authority: RCW 43.20.050. WSR 83-19-002 (Order 266), § 248-54-215, filed 9/8/83.] Repealed by WSR 99-07-021, filed 3/9/99, effective 4/9/99. Statutory Authority: RCW 43.02.050 [ 43.20.050].
246-290-450Watershed control. [Statutory Authority: RCW 43.20.050. WSR 91-02-051 (Order 124B), recodified as § 246-290-450, filed 12/27/90, effective 1/31/91. Statutory Authority: RCW 34.04.045. WSR 88-05-057 (Order 307), § 248-54-225, filed 2/17/88. Statutory Authority: RCW 43.20.050. WSR 83-19-002 (Order 266), § 248-54-225, filed 9/8/83.] Repealed by WSR 93-08-011 (Order 352B), filed 3/25/93, effective 4/25/93. Statutory Authority: RCW 43.20.050.
246-290-495Public notification. [Statutory Authority: RCW 43.02.050 [ 43.20.050]. WSR 99-07-021, § 246-290-495, filed 3/9/99, effective 4/9/99.] Repealed by WSR 03-08-037, filed 3/27/03, effective 4/27/03. Statutory Authority: RCW 43.20.050 (2) and (3) and 70.119A.080.
246-290-610Definitions relating to surface water treatment. [Statutory Authority: RCW 43.20.050. WSR 93-08-011 (Order 352B), § 246-290-610, filed 3/25/93, effective 4/25/93.] Repealed by WSR 99-07-021, filed 3/9/99, effective 4/9/99. Statutory Authority: RCW 43.02.050 [ 43.20.050].
246-290-680Operating criteria for new water treatment facilities. [Statutory Authority: RCW 43.20.050. WSR 93-08-011 (Order 352B), § 246-290-680, filed 3/25/93, effective 4/25/93.] Repealed by WSR 97-20-100, filed 9/29/97, effective 10/30/97. Statutory Authority: RCW 43.20.050.