1. (a) WQP tap monitoring shall be:

   1. (1) Representative of water quality throughout the distribution system, by considering the number of persons served, the different sources of water and treatment methods employed, and seasonal variability;
   2. (2) Not restricted to sites targeted for lead and copper sampling; and

   3. (3) Include two samples for each applicable WQP during each period, from the standard number of sites, based on the number of persons served, specified in table 64680-A.

      Table 64680-A

      WQP Tap Monitoring Sites

      System Size

      Standard Tap Sampling

      Reduced Tap Sampling

      (Minimimum Number of Sites)

      >100,000

      25

      10

      10,001 to 100,000

      10

      7

      3,301 to 10,000

      3

      3

      501 to 3,300

      2

      2

      101 to 500

      1

      1

      <101

      1

      1

2. (b) Initial WQP monitoring at the entry point(s) to the distribution system shall be two samples for each applicable WQP at each entry point from locations representative of each source after treatment. After the installation of CCT, only one sample is required at each entry point. If a system draws water from more than one source and the sources are combined before distribution, the system shall sample at each entry point during normal operating conditions.

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 article 5 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 A Certificate of Compliance must be transmitted to OAL by 4-9-96 or emergency language will be repealed by operation of law on the following day.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 A Certificate of Compliance must be transmitted to OAL by 8-8-96 or emergency language will be repealed by operation of law on the following day.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. Editorial correction of subsection (a)(1)(D)2.A. (Register 96, No. 38).

4. Certificate of Compliance as to 12-11-95 order, including amendment of subsections (a)(1)(D)2.D., (a) (1)(D)3.A. and (b)(5), transmitted to OAL 8-7-96 and filed 9-16-96 (Register 96, No. 38).

5. Repealer of former article 4 (section 64679), repealer of former article 5 (sections 64680-64681), new article 4 (sections 64680-64684) and repealer and new section filed 9-11-2003; operative 10-11-2003 (Register 2003, No. 37).