Cal. Code Regs. tit. 22 § 64447

Current through Register 2024 Notice Reg. No. 52, December 27, 2024

Section 64447 - Best Available Technology (BAT)-Microbiological Contaminants

The technologies identified by the State Board as the best available technology (for a public water system serving more than 10,000 persons), affordable technology (for a public water system serving 10,000 or fewer persons), treatment techniques, or other means available for achieving compliance with the E. coli MCL are as follows:

(a) Protection of wells from fecal coliform contamination by appropriate placement and construction;

(b) Maintenance of a disinfectant residual throughout the distribution system;

(c) Proper maintenance of the distribution system including appropriate pipe replacement and repair procedures, main flushing programs, proper operation and maintenance of storage tanks and reservoirs, cross connection control, and continual maintenance of positive water pressure in all parts of the distribution system;

(d) Filtration and/or disinfection of approved surface water, in compliance with Section 64650, or disinfection of groundwater, in compliance with Section 64430, using strong oxidants such as chlorine, chlorine dioxide, or ozone; and

(e) For a system using groundwater, compliance with the groundwater portion of a Drinking Water Source Assessment and Protection Program, conducted according to the Drinking Water Source Assessment Protection Program, California Department of Health Services, January 2000, which is incorporated by reference.

Cal. Code Regs. Tit. 22, § 64447

1. Repealer of article 5.6 heading and section, new article 12, and renumbering and amendment of former section 64430 to section 64447 filed 9-8-94 as an emergency; operative 9-8-94 (Register 94, No. 36). A Certificate of Compliance must be transmitted to OAL by 1-6-95 or emergency language will be repealed by operation of law on the following day. For prior history, see Register 88, No. 51.
2. Repealer of article 5.6 heading and section, new article 12, and renumbering and amendment of former section 64430 to section 64447 refiled 1-3-95 as an emergency; operative 1-3-95 (Register 95, No. 1). A Certificate of Compliance must be transmitted to OAL by 5-3-95 or emergency language will be repealed by operation of law on the following day.
3. Repealer of article 5.6 heading and section, new article 12, and renumbering and amendment of former section 64430 to section 64447 refiled 4-26-95 as an emergency; operative 4-26-95 (Register 95, No. 17). A Certificate of Compliance must be transmitted to OAL by 8-24-95 or emergency language will be repealed by operation of law on the following day.
4. Certificate of Compliance as to 4-26-95 order transmitted to OAL 5-5-95 and filed 6-19-95 (Register 95, No. 25).
5. Change without regulatory effect amending first paragraph and NOTE filed 6-2-2015 pursuant to section 100, title 1, California Code of Regulations (Register 2015, No. 23).
6. Amendment of section and NOTE filed 5-28-2021; operative 7-1-2021 (Register 2021, No. 22).

Note: Authority cited: Sections 116271 and 116375, Health and Safety Code. Reference: Sections 116350 and 116370, Health and Safety Code.

1. Repealer of article 5.6 heading and section, new article 12, and renumbering and amendment of former section 64430 to section 64447 filed 9-8-94 as an emergency; operative 9-8-94 (Register 94, No. 36). A Certificate of Compliance must be transmitted to OAL by 1-6-95 or emergency language will be repealed by operation of law on the following day. For prior history, see Register 88, No. 51.
2. Repealer of article 5.6 heading and section, new article 12, and renumbering and amendment of former section 64430 to section 64447 refiled 1-3-95 as an emergency; operative 1-3-95 (Register 95, No. 1). A Certificate of Compliance must be transmitted to OAL by 5-3-95 or emergency language will be repealed by operation of law on the following day.
3. Repealer of article 5.6 heading and section, new article 12, and renumbering and amendment of former section 64430 to section 64447 refiled 4-26-95 as an emergency; operative 4-26-95 (Register 95, No. 17). A Certificate of Compliance must be transmitted to OAL by 8-24-95 or emergency language will be repealed by operation of law on the following day.
4. Certificate of Compliance as to 4-26-95 order transmitted to OAL 5-5-95 and filed 6-19-95 (Register 95, No. 25).
5. Change without regulatory effect amending first paragraph and Note filed 6-2-2015 pursuant to section 100, title 1, California Code of Regulations (Register 2015, No. 23).
6. Amendment of section and Note filed 5-28-2021; operative 7/1/2021 (Register 2021, No. 22).