Section 18.80.810. Invalidation of fecal indicator-positive samples.

	(a)  Under 40 C.F.R. 141.402(d), adopted by reference in 18 AAC 80.010(a), the department will invalidate a fecal indicator-positive sample if  
		(1) the certified laboratory that performed the analysis establishes that improper sample analysis caused the positive result; or  
		(2) the department, based on the results of triggered source water samples collected under 40 C.F.R. 141.402(a), adopted by reference in 18 AAC 80.010(a), finds that the fecal indicator-positive sample resulted from a domestic or other nondistribution system plumbing problem; the department will not invalidate a sample on the basis of repeat sample results.  
	(b)  If the department invalidates a fecal indicator-positive sample under (a) of this section, the department will  
		(1) document the decision in writing;  
		(2) make the decision available to EPA and the public; and  
		(3) describe the specific cause of the fecal indicator-positive sample and what action the owner or operator of the system has taken or will take to correct that problem.  
	(c)  A fecal indicator-positive sample invalidated under this section may not be counted toward meeting the additional five source water samples required under 40 C.F.R. 141.402(a)(3), adopted by reference in 18 AAC 80.010(a).  

Authorities

46.03.020;46.03.050;46.03.710;46.03.720

Notes

Authority

AS 46.03.020 AS 46.03.050 AS 46.03.710 AS 46.03.720

History

Eff. 5/20/2011, Register 198