Section 13570.
Cal. Water Code - WAT § 13570.
in effect(a)
As used in this section, “advanced purified demonstration water” means product water from an advanced water purification facility that satisfies both of the following requirements:
(1)
The product water is treated by means of all of the following treatment processes:
(A)
Microfiltration, ultrafiltration, or other filtration processes to remove particulates before reverse osmosis.
(B)
Reverse osmosis.
(C)
Advanced oxidation.
(2)
The product water
meets or exceeds all federal and state drinking water standards and is produced in accordance with the advanced treatment criteria for purified water specified in Section 60320.201 of Title 22 of the California Code of Regulations.
(b)
As used in this section, “advanced water purification facility” means a water recycling treatment plant that produces advanced purified demonstration water in accordance with the advanced treatment criteria specified in Section 60320.201 of Title 22 of the California Code of Regulations.
(c)
As used in this section, “batch” means an increment of advanced purified treatment water that has completed the treatment process, is separate from incoming water, and is not receiving any additional source water.
(d)
Except as expressly set forth in this section, the operator of an advanced water
purification facility may cause advanced purified demonstration water to be bottled and distributed as samples for educational purposes and to promote water recycling, without complying with the requirements of Article 12 (commencing with Section 111070) of Chapter 5 of Part 5 of Division 104 of the Health and Safety Code. The volume of advanced purified demonstration water in each bottle shall not exceed eight ounces.
(e)
Any operator of an advanced water purification facility seeking to bottle advanced purified demonstration water shall collect water samples from the batch prior to the commencement of the bottling process, and test that batch in accordance with Section 111165 of the Health and Safety Code. Advanced purified demonstration water shall not be distributed unless the following requirements are met:
(1)
The water meets or exceeds all federal and state drinking water
standards, including all maximum contaminant levels applicable to public drinking water systems.
(2)
The advanced water purification facility meets or exceeds all purification requirements imposed by regulatory agencies to produce the advanced purified demonstration water, including the removal of constituents of emerging concern where the removal is otherwise required of an advanced water purification facility.
(3)
The water is produced using a treatment process that is consistent with the advanced treatment criteria for purified water specified in Section 60320.201 of Title 22 of the California Code of Regulations and, if established by the state board, in accordance with any uniform statewide water recycling criteria developed for the direct potable reuse of recycled water.
(f)
(1)
Advanced
purified demonstration water may be bottled only at a licensed water-bottling plant in compliance with Sections 111070.5, 111080, 111120, 111145, and 111155 of the Health and Safety Code.
(2)
Before bottling advanced purified demonstration water, an advanced water purification facility shall follow all pretreatment and labeling regulations for water bottling, including the requirements described in Section 111070.5 of the Health and Safety Code and the requirements for bottled water and vended water pursuant to Section 111080 of the Health and Safety Code.
(g)
Advanced purified demonstration water shall be handled from the point of production to the completion of bottling in accordance with all regulations governing the transportation, bottling, labeling, and handling of bottled water, as defined in subdivision (a) of Section 111070 of the Health and Safety Code, including, but
not limited to, subdivisions (a), (b), (f), and (h) of Section 111075 of the Health and Safety Code and Section 111070.5 of the Health and Safety Code. A water-bottling plant that bottles advanced purified demonstration water in accordance with this section may also bottle potable water, subject to compliance with Article 12 (commencing with Section 111070) of Chapter 5 of Part 5 of Division 104 of the Health and Safety Code.
(h)
An advanced water purification facility shall not provide bottled advanced purified demonstration water to any person under 18 years of age without the consent of that person’s parent or legal guardian.
(i)
An advanced water purification facility shall not provide advanced purified demonstration water for human consumption, as defined in Section 116275 of the Health and Safety Code, including, but not limited to, in bottles, to more than 25 individuals
per day for 60 or more days in a calendar year.
(j)
Advanced purified demonstration water shall be bottled in nonreturnable (one-way) bottles or packages with labels containing the following information in an easily readable format that complies with all of the following:
(1)
The label shall state “sample water--not for sale” and “Advanced Purified Water Sourced From Wastewater.”
(2)
The label shall set forth the name, address, telephone number, and Internet Web site of the operator of the facility producing the advanced purified demonstration water.
(3)
The label shall include a brief description of the advanced purified demonstration water, including its source and the treatment processes to which the water is subjected.
(k)
A single advanced water purification facility shall not cause more than 1,000 gallons of advanced purified demonstration water to be bottled in a calendar year.
(l)
Advanced purified demonstration water shall not be sold or otherwise distributed in exchange for financial consideration.
(m)
Any operator of an advanced water purification facility seeking to bottle advanced purified demonstration water shall establish a collection and recycling program for distributed bottles.
(n)
The operator of an advanced water purification facility that is bottling advanced purified demonstration water shall do all of the following:
(1)
Maintain a daily record of the number of individuals to whom
advanced purified demonstration water is distributed, served, made available, or otherwise provided, including, but not limited to, from a bottle.
(2)
Compile a report of all daily records described in paragraph (1) for each calendar year.
(3)
Certify under penalty of perjury that the report is accurate.
(4)
Provide the report within 45 days of the end of the calendar year for which the report was made to the deputy director of the Division of Drinking Water of the State Water Resources Control Board.
(o)
This section does not exempt an advanced water purification facility from any standard for bottling water imposed pursuant to federal law.
References
referencesCal. Health and Safety Code - HSC § 111070.
referencesCal. Health and Safety Code - HSC § 111165.
referencesCal. Health and Safety Code - HSC § 111070.5.
referencesCal. Health and Safety Code - HSC § 111080.
referencesCal. Health and Safety Code - HSC § 111120.
referencesCal. Health and Safety Code - HSC § 111145.
referencesCal. Health and Safety Code - HSC § 111155.
referencesCal. Health and Safety Code - HSC § 111075.
referencesCal. Health and Safety Code - HSC § 116275.
Source: CA Legislative Counsel Bulk DataURL: https://downloads.leginfo.legislature.ca.gov/pubinfo_2025.zipFetched: 6/27/2026