(a) The state board may order a public water system to monitor for perfluoroalkyl substances and polyfluoroalkyl substances, in accordance with conditions set by the state board. A laboratory that has accreditation or certification pursuant to Article 3 (commencing with Section 100825) of Chapter 4 of Part 1 of Division 101 shall perform the analysis of any material required by an order to monitor for these substances. The order shall identify the analytical test methods to be used by laboratories and provide for the electronic submission of monitoring results to the state board. (b) An order issued pursuant to subdivision (a) may apply to an individual public water system, specific groups of public water systems, or to all public water systems. Chapter 3.5 (commencing with Section 11340) of Part 1 of Division 3 of Title 2 of the Government Code does not apply to an order issued pursuant to subdivision (a) to specific groups of public water systems or to all public water systems. All monitoring results shall be submitted to the state board electronically as directed by the state board in its order. (c) (1) If any monitoring undertaken pursuant to an order issued under subdivision (a) results in a confirmed detection, a community water system or a nontransient noncommunity water system shall report that detection in the water systemâs annual consumer confidence report. Unless the water source is taken out of use or new data becomes available to show that the response level is no longer being exceeded, the community water system or nontransient noncommunity water system will provide notice of the exceedance of the response level in the water systemâs annual consumer confidence report. (2) In addition to the notification pursuant to paragraph (1), for perfluoroalkyl substances and polyfluoroalkyl substances with notification levels, a community water system or a nontransient noncommunity water system shall report the detection if the level exceeds the notification level as required by Section 116455. (3) For perfluoroalkyl substances and polyfluoroalkyl substances with response levels where detected levels of a substance exceed the response level, a community water system or a nontransient noncommunity public water system shall take a water source where detected levels exceed the response level out of use or provide public notification within 30 days of the confirmed detection. For the purposes of this paragraph, notice shall be provided as follows: (A) A community water system shall do the following: (i) Mail or directly deliver notice to each customer receiving a bill, including those that provide drinking water to others, and to other service connections to which water is delivered by the water system. (ii) Email notice to each customer of the water system with an email address known by the water system. (iii) Post the notice on the internet website of the water system. (iv) Use one or more of the following methods to reach persons not likely to be reached by the notice provided in clause (i): (I) Publish notice in a local newspaper for at least seven days. (II) Post notice in conspicuous public places served by the water system for at least seven days. (III) Post notice on an appropriate social media site for at least seven days. (IV) Deliver notice to community organizations. (B) A nontransient noncommunity water system shall do both of the following: (i) Post notice in conspicuous locations throughout the area served by the water system. (ii) Use one or more of the following methods to reach persons not likely to be reached by the notice provided in clause (i): (I) Publish notice in a local newspaper for at least seven days. (II) Publish notice in a newsletter distributed to customers. (III) Send notice by email to employees or students. (IV) Post notice on the internet website of the water system and an appropriate social media site for at least seven days. (V) Deliver notice directly to each customer. (C) A notice sha
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