(1) In addition to the data reporting requirements under WAC 246-390-075, a lab shall notify the department and the public water system for:

(a)(i) Routine, repeat, GWR, triggered source water monitoring, and assessment source water monitoring results, as required under chapter 246-290 WAC, that are E. coli bacteria present.

(ii) Notification occurs with no less than three attempts to contact the department and the public water system by telephone, facsimile, or email as soon as possible after sample results have been determined, but no later than the close of business.

(b)(i) Routine, repeat, GWR, triggered source water monitoring, and assessment source water monitoring results that are total coliform bacteria present.

(ii) Notification occurs with one attempt to contact the department and the public water system by telephone (voice mail is acceptable), facsimile, or email as soon as possible after sample results have been determined, but no later than the close of business on the next business day. 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.

(c) Routine or confirmation sample results for nitrate or nitrite that exceed the MCL under chapters 246-290 and 246-291 WAC; or

(d)(i) Routine or confirmation sample results for inorganic, organic, or radiological contaminants that exceed four times the contaminant's primary MCL under chapters 246-290 and 246-291 WAC.

(ii) For (c) and (d) of this subsection, notification occurs with one attempt to contact the department and public water system by telephone, facsimile, or email as soon as possible after sample results have been verified by quality control staff, but no later than the close of business.

(2) A lab shall:

(a) Document all notification attempts required under subsection (1) 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.