Notification requirements.
(1) In addition to the data reporting requirements under WAC
246-390-075, a lab shall notify the department and the public water system in accordance with Table 1 of this section for the following exceedances:
Table 1 - Notification Requirements for Routine Compliance Samples
Sample type | Exceeds | 1Required Notification | Required Number of Attempts to Contact the Department |
Routine, repeat, triggered, and assessment water coliform samples | Total coliform positive and E. coli positive | Close of business same day | 3 |
Routine, repeat, triggered, and assessment water coliform samples | Total coliform positive and E. coli negative | Close of business2 next business day | 1 |
Routine or confirmation samples for nitrate or nitrite | | Close of business same day | 3 |
Routine or confirmation sample results for other inorganic, organic, or radiological contaminant sample results | 4 times the state or federal MCL under chapters 246-290 and 246-291 WAC | Close of business same day | 1 |
(2) For routine or confirmation sample results for contaminants that exceed the SAL or state MCL under WAC
246-290-315 and classified as Tier 1, Tier 2 bioaccumulative, or Tier 2 nonbioaccumulative under WAC
246-290-71006 Table 17, a lab shall notify the department as indicated in Table 2 of this section:
Table 2 - Notification Requirements for Contaminants with a SAL or State MCL
Tier Number | Bioaccumulative (Y/N) | Exceeds | 1Required Notification | Required Number of Attempts to Contact the Department |
Tier 1 | Either | SAL or state MCL | Close of business same day | 3 |
Tier 2 | Y | 4 times SAL or state MCL | Close of business same day | 3 |
Tier 2 | Y | SAL or state MCL | Close of business2 next business day | 1 |
Tier 2 | N | 4 times SAL or state MCL | Close of business same day | 1 |
1 | Notification may occur by telephone, facsimile, or email. If close of business is after 5 p.m. PST, contact the department's after-hours telephone number. |
2 | For labs that operate seven days per week or observe regular holidays; weekends and holidays are not considered business days for the purposes of this subsection. |
(3) A lab shall:
(a) Document all notification attempts required under subsections (1) and (2) of this section by recording the following information in a paper or electronic logbook:
(i) Date;
(ii) Time;
(iii) Sample number;
(iv) Public water system name and department-assigned identification number;
(v) The contact person and telephone number, facsimile number, or email address for the public water system;
(vi) The contact person and telephone number, facsimile number, or email address of the department; and
(vii) The initials of the lab person that made the attempt.
(b) Make the logbook available to the department upon request; and
(c) Retain the logbook for a minimum of two years after the last entry date.
[Statutory Authority: RCW
43.20.050 and
70A.125.080. WSR 21-23-096, § 246-390-065, filed 11/17/21, effective 1/1/22. Statutory Authority: RCW
43.20.050 and
70.119A.080. WSR 18-09-048, § 246-390-065, filed 4/13/18, effective 5/14/18.]
