WAC 246-290-72300

This section takes effect on January 1, 2027. This section applies to systems subject to 40 C.F.R. 141 Subpart I.

(1) The report must notify consumers that complete lead tap sampling data are available for review and must include information on how to access the data.

(2) The report must include a statement that a service line inventory (including inventories consisting only of a statement that there are no lead, galvanized requiring replacement, or lead status unknown service lines) has been prepared and include instructions to access the publicly available service line inventory. If the service line inventory is available online, the report must include the direct link to the inventory.

(3) The report must contain a plainly worded explanation of the corrosion control efforts the system is taking in accordance with 40 C.F.R. 141 Subpart I. Corrosion control efforts consist of treatment (e.g., pH adjustment, alkalinity adjustment, or corrosion inhibitor addition) and other efforts contributing to the control of the corrosivity of water, e.g., monitoring to assess the corrosivity of water. The system may use one of the following templates or use their own explanation that includes equivalent information.

(a) For systems with state or EPA-designated Optimal Corrosion Control Treatment:

(i) Corrosion of pipes, plumbing fittings and fixtures may cause lead and copper to enter drinking water. To assess corrosion of lead and copper, (NAME OF SYSTEM) conducts tap sampling for lead and copper at selected sites (INSERT FREQUENCY AT WHICH SYSTEM CONDUCTS TAP SAMPLING). (NAME OF SYSTEM) treats water using (IDENTIFY TREATMENT METHOD) to control corrosion, which was designated as the optimal corrosion control treatment by (THE STATE OR EPA, AS APPLICABLE). To ensure the treatment is operating effectively, (NAME OF SYSTEM) monitors water quality parameters set by (THE STATE OR EPA, AS APPLICABLE) (INSERT FREQUENCY AT WHICH SYSTEM CONDUCTS WATER QUALITY PARAMETER MONITORING).

(ii) If applicable, add: (NAME OF SYSTEM) is currently conducting a study of corrosion control to determine if any changes to treatment methods are needed to minimize the corrosivity of the water.

(b) For systems without state or EPA designated Optimal Corrosion Control Treatment:

(i) Corrosion of pipes, plumbing fittings, and fixtures may cause metals, including lead and copper, to enter drinking water. To assess corrosion of lead and copper, (NAME OF SYSTEM) conducts tap sampling for lead and copper at selected sites (INSERT FREQUENCY AT WHICH SYSTEM CONDUCTS TAP SAMPLING).

(ii) If applicable, add: (NAME OF SYSTEM) treats water using (IDENTIFY TREATMENT METHOD) to control corrosion.

(iii) If applicable, add: (NAME OF SYSTEM) is currently conducting a study of corrosion control to determine if any changes to treatment methods are needed to minimize the corrosivity of the water.