Cal. Code Regs. tit. 22 § 64689

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

Section 64689 - Lead Service Line Sampling

(a) Each lead service line sample shall be one liter in volume and have stood motionless in the lead service line for at least six hours, but not more than twelve.

(b) Lead service line samples shall be collected in one of the following three ways:

(1) At the tap after flushing the volume of water between the tap and the lead service line. The volume of water to be flushed shall be calculated based on the interior diameter and length of the pipe between the tap and the lead service line;

(2) Tapping directly into the lead service line; or

(3) If the sampling site is a building constructed as a single-family residence, allowing the water to run until there is a change in temperature that would be indicative of water that has been standing in the lead service line.

Cal. Code Regs. Tit. 22, § 64689

1. New article 8 and section filed 12-11-95 as an emergency; operative 12-11-95 (Register 95, No. 50). A Certificate of Compliance must be transmitted to OAL by 4-9-96 or emergency language will be repealed by operation of law on the following day.
2. Refiling of 12-11-95 order, including amendment of NOTE, filed 4-9-96 as an emergency; operative 4-10-96 (Register 96, No. 15). A Certificate of Compliance must be transmitted to OAL by 8-8-96 or emergency language will be repealed by operation of law on the following day.
3. Certificate of Compliance as to 12-11-95 order, including amendment of subsection (b), transmitted to OAL 8-7-96 and filed 9-16-96 (Register 96, No. 38).
4. Repealer of article 8 (sections 64689-64690) and repealer and new section filed 9-11-2003; operative 10-11-2003 (Register 2003, No. 37).

Note: Authority cited: Sections 100275, 116350, 116365, 116375 and 116385, Health and Safety Code. Reference: Sections 116325- 116750, Health and Safety Code.

1. New article 8 and section filed 12-11-95 as an emergency; operative 12-11-95 (Register 95, No. 50). A Certificate of Compliance must be transmitted to OAL by 4-9-96 or emergency language will be repealed by operation of law on the following day.
2. Refiling of 12-11-95 order, including amendment of Note, filed 4-9-96 as an emergency; operative 4-10-96 (Register 96, No. 15). A Certificate of Compliance must be transmitted to OAL by 8-8-96 or emergency language will be repealed by operation of law on the following day.
3. Certificate of Compliance as to 12-11-95 order, including amendment of subsection (b), transmitted to OAL 8-7-96 and filed 9-16-96 (Register 96, No. 38).
4. Repealer of article 8 (sections 64689-64690) and repealer and new section filed 9-11-2003; operative 10-11-2003 (Register 2003, No. 37).