Alaska Administrative Code › Title 18 - Environmental Conservation › Chapter 80 - Drinking Water › Article 3 - Standards, Monitoring, Variances, and Exemptions › 18 AAC 80.340 - Examination of water: owner or operator requirements

Current through May 31, 2024
(a)
General
				requirements.
To meet the applicable analytical requirements of this
				chapter, the owner or operator of a public water system must comply with the
				requirements of this section. Except as otherwise provided in this section and
				18 AAC 80.350, the owner or
				operator shall ensure that an analysis that is required under this chapter for
				inorganic, organic, radioactive, and microbiological contaminants described in
				18 AAC 80.300 or
				18 AAC 80.335 is performed by a
				certified laboratory. The owner or operator shall ensure that the results of
				that analysis are reported to the department within the first 10 days following
				the month in which the result is received, or within the first 10 days
				following the end of the required monitoring period, whichever is sooner. If
				the owner or operator submits the results, the submission is subject to the
				report certification requirements of
				18 AAC 80.1900. If the owner or
				operator submits to a certified laboratory water samples for analysis for
				contaminants described in
				18 AAC 80.300, the owner or
				operator shall clearly identify that the samples are from a drinking water
				source for a public water system.
(b)
Analytical procedures and
				results.
The owner or operator shall ensure that analyses under (c) - (e)
				of this section are performed by an individual trained in and capable of
				demonstrating proficiency in the analytical procedures referenced in this
				section. Results of analyses conducted under (c) and (d) of this section must
				be submitted to the department within the first seven days following the month
				in which the result is received, or the first seven days following the end of
				the required monitoring period, whichever is sooner. Submission of those
				results is subject to the report certification requirements of
				18 AAC 80.1900.
(c)
Fluoride.
If fluoride is
				added to a public water system, the analysis required by
				18 AAC 80.310 and (b) of this
				section must be performed using an approved method from
				40 C.F.R.
				141.23(k)(1), adopted by
				reference in
				18 AAC 80.010(a).
(d)
Analytical methods for surface
				water treatment.
Only the analytical methods set out in this subsection
				may be used to demonstrate compliance with
				18 AAC 80.600 -
				18 AAC 80.680 and
				18 AAC 80.699. The following
				procedures must be performed in accordance with the publications listed for
				each procedure, adopted by reference in
				18 AAC 80.010(b):
(1)
turbidity:
turbidity must be
				measured by Standard Method 2130-B (Nephelometric Method), as set out in
Standard Methods for the Examination of Water and
				Wastewater
;
(2)
residual disinfectant concentration:
For each of the following
				disinfectants that is used, residual disinfectant concentration must be
				measured using one of the following methods as set out in
Standard
				Methods for the Examination of Water and Wastewater
:
(A)
total chlorine, free chlorine, and
				combined chlorine (chloramines):
residual disinfectant concentrations
				for total chlorine, free chlorine, and combined chlorine must be measured by
				Standard Method 4500-Cl D (Amperometric Titration Method), Standard Method
				4500-Cl F (DPD Ferrous Titrimetric Method), or Standard Method 4500-Cl G (DPD
				Colorimetric Method), except that
(i) residual
				disinfectant concentration for free chlorine may be measured by Standard Method
				4500-Cl H (Syringaldazine (FACTS) Method);
(ii) residual disinfectant concentration for
				total chlorine may be measured by Standard Method 4500-Cl E (Low Level
				Amperometric Titration Method) or Standard Method 4500-Cl I (Iodometric
				Electrode Technique);
(iii)
				residual disinfectant concentrations for total chlorine, free chlorine,
				combined chlorine, and chloramines may be measured using DPD colorimetric test
				kits; and
(iv) residual
				disinfectant concentrations for free and total chlorine may be measured
				continuously by adapting, for use with a continuous monitoring instrument, a
				method specified in this subparagraph if the chemistry, accuracy, and precision
				remain the same; instruments used for continuous monitoring must be calibrated
				using a grab sample measurement at least every five days, or following a
				protocol approved by the department to serve the interests of public
				health;
(B)
chlorine dioxide:
residual disinfectant concentration for chlorine
				dioxide must be measured by Standard Method 4500-ClO
2
C (Amperometric Method I), Standard Method 4500-ClO
2
D
				(DPD Method), or Standard Method 4500-ClO
2
E
				(Amperometric Method II);
(C)
ozone:
residual disinfectant concentration for ozone
				must be measured by Standard Method 4500-O3
B (Indigo Colorimetric
				Method);
(D)
iodine:
residual disinfectant concentration for iodine
				must be measured by Standard Method 4500-I B (Leuco Crystal Violet Method) or
				Standard Method 4500-I C (Amperometric Titration
				Method);
(3)
temperature:
temperature must
				be measured by Standard Method 2550, as set out in
Standard Methods for
				the Examination of Water and Wastewater
;
(4)
pH:
pH must be
				measured by
(A) Standard Method
				4500-H+B (Electrometric Method), as set out in
Standard
				Methods
for the Examination of Water and Wastewater, adopted by
				reference in
				18 AAC 80.010(b);
				or
(B) EPA Method 150.1 or
				150.2, as set out in
Methods for Chemical Analysis of Water and
				Wastes, adopted by reference in
				18 AAC 80.010(b).