Cal. Code Regs. tit. 27 § 25711

Current through Register 2024 Notice Reg. No. 49, December 6, 2024

Section 25711 - Levels Based on State or Federal Standards

(a) Except as otherwise provided in section 25705, 25707, or 25709, levels of exposure deemed to pose no significant risk may be determined as follows:

(1) Where a state or federal agency has developed a regulatory level for a chemical known to the state to cause cancer which is calculated to result in not more than one excess case of cancer in an exposed population of 100,000, such level shall constitute the no significant risk level.

(2) For drinking water, the following levels shall be deemed to pose no significant risk:

(A) Drinking water maximum contaminant levels adopted by the Department of Health Services for chemicals known to the state to cause cancer;

(B) Drinking water action levels for chemicals known to the state to cause cancer for which maximum contaminant levels have not been adopted;

(C) Specific numeric levels of concentration for chemicals known to the state to cause cancer which are permitted to be discharged or released into sources of drinking water by a Regional Water Quality Control Board in a water quality control plan or in waste discharge requirements, when such levels are based on considerations of minimizing carcinogenic risks associated with such discharge or release.

Cal. Code Regs. Tit. 27, § 25711

1. New section filed 2-24-88 as an emergency; operative 2-27-88 (Register 88, No. 11). A Certificate of Compliance must be transmitted to OAL within 120 days or emergency language will be repealed on 6-27-88.
2. New section refiled 6-27-88 as an emergency; operative 6-27-88 (Register 88, No. 27). A Certificate of Compliance must be transmitted to OAL within 120 days or emergency language will be repealed on 10-25-88.
3. New section refiled 10-17-88 as an emergency; operative 10-25-88 (Register 88, No. 44). A Certificate of Compliance must be transmitted to OAL within 120 days or emergency language will be repealed on 2-22-89.
4. Amendment filed 10-17-88 as an emergency; operative 10-27-88 (Register 88, No. 44). A Certificate of Compliance must be transmitted to OAL within 120 days or emergency language will be repealed on 2-24-89.
5. Amendment filed 12-21-88 as an emergency; operative 1-1-89 (Register 89, No. 1). A Certificate of Compliance must be transmitted to OAL within 120 days or emergency language will be repealed on 5-1-89.
6. New section, as amended 10-27-88 and 1-1-89, refiled 2-21-89 as an emergency; operative 2-22-89 (Register 89, No. 10). A Certificate of Compliance must be transmitted to OAL within 120 days or emergency language will be repealed on 6-22-89.
7. Certificate of Compliance including amendment transmitted to OAL 6-9-89 and filed 7-10-89 (Register 89, No. 30).
8. Amendment of subsection (a) filed 12-1-89; operative 12-31-89 (Register 89, No. 49).
9. Amendment of subsection (a) filed 5-16-90; operative 6-15-90 (Register 90, No. 25).
10. Amendment of subsection (a)(2) filed 5-24-90; operative 6-23-90 (Register 90, No. 25).
11. Editorial correction of printing error in subsection (a)(2) submitted to OAL for printing only 10-9-90 (Register 91, No. 3).
12. Amendment of subsection (a)(2) deleting Benzene filed 11-26-90; operative 12-26-90 (Register 91, No. 3).
13. Amendment of subsection (a)(2) filed 11-26-90; operative 12-26-90 (Register 91, No. 3).
14. Amendment of subsection (a)(2) repealing Chromium filed 9-16-92; operative 10-16-92 (Register 92, No. 38).
15. Amendment of subsection (a)(2) repealing Tetrachlorodibenzo-p-dioxin filed 9-16-92; operative 10-16-92 (Register 92, No. 38).
16. Amendment of subsection (a)(2) adding Benzyl chloride and Bromodichloromethane filed 9-16-92; operative 10-16-92 (Register 92, No. 38).
17. Amendment of subsection (a)(2) deleting trichloroethylene and vinyl chloride filed 9-24-92; operative 10-26-92 (Register 92, No. 39).
18. Repealer of subsection (a)(2) and renumbering of following subsection filed 10-9-92; operative 11-9-92 (Register 92, No. 41).
19. Amendment of subsection (a) filed 1-7-2003; operative 2-6-2003 (Register 2003, No. 2).
20. Change without regulatory effect renumbering title 22, section 12711 to title 27, section 25711, including amendment of subsection (a), filed 6-18-2008 pursuant to section 100, title 1, California Code of Regulations (Register 2008, No. 25).

Note: Authority cited: Section 25249.12, Health and Safety Code. Reference: Sections 25249.5, 25249.6, 25249.9, 25249.10 and 25249.11, Health and Safety Code.