1. (a) During each period, each system shall conduct standard tap sampling by collecting one sample from the number of sites based on the number of people served specified in table 64675-A under Standard Tap Sampling.

2. (b) During each period, each system conducting reduced tap sampling shall collect at least one sample from the number of sites based on the number of people served specified in table 64675-A under Reduced Tap Sampling, as follows:

   1. (1) The sites shall be representative of the sites required for standard tap sampling.

   2. (2) The samples shall be collected during the months of June, July, August, or September, unless the Department approves an alternate set of four months based on a review of the system's operations and lead and copper data, in which case the system shall initiate sampling during the alternate set of four months when directed in writing to do so by the Department, as follows:

      1. (A) No later than 21 months after the previous period, if sampling annually, or

      2. (B) No later than 45 months after the previous period, if sampling triennially.

         Table 64675-A

         Lead and Copper Tap Sampling Sites

         System Size

         Standard Tap Sampling

         Reduced Tap Sampling

         (Minimimum Number of Sites)

         >100,000

         100

         50

         10,001 to 100,000

         60

         30

         3,301 to 10,000

         40

         20

         501 to 3,300

         20

         10

         101 to 500

         10

         5

         <101

         5

         5

3. (c) Sample sites shall be selected pursuant to section 64676 (Sample Site Selection).

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

History

1. New 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 A Certificate of Compliance must be transmitted to OAL by 4-9-96 or emergency language will be repealed by operation of law on the following day.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 A Certificate of Compliance must be transmitted to OAL by 8-8-96 or emergency language will be repealed by operation of law on the following day.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 (a)(1), transmitted to OAL 8-7-96 and filed 9-16-96 (Register 96, No. 38).

4. Repealer of article 3 (sections 64677-64678), new article 3 (sections 64675-64679) and repealer and new section filed 9-11-2003; operative 10-11-2003 (Register 2003, No. 37).