Alaska Administrative Code › Title 18 - Environmental Conservation › Chapter 80 - Drinking Water › Article 4 - Coliform Bacteria Requirements › 18 AAC 80.410 - Sampling siting plan review and approval

Current through May 31, 2024
(a) The
				requirements of this section are in addition to the requirements of
				40C.F.R
				141.853(a) and (b), adopted
				by reference in
				18 AAC 80.010(a).
(b) A written sample siting plan, addressing
				appropriate coliform sampling sites and frequency, must be submitted by the
				owner or operator to the department for review and approval. The plan must
				include
(1) the public water system
				identification number assigned under
				18 AAC 80.210(c);
(2) the name, address, telephone number,
				facsimile number, and, if available, the electronic mail address of the public
				water system;
(3) the name,
				address, telephone number, facsimile number, and, if available, the electronic
				mail address of the owner or operator or a designee;
(4) the type of each water source;
(5) the number of service
				connections;
(6) the size of the
				population served each month;
(7)
				the schedule for sampling frequency, including the number of routine samples
				required each month or quarter; for a seasonal system on reduced monitoring,
				the schedule must indicate each month that the public water system experiences
				the highest use during the monitoring period;
(8) a list of sites where routine and repeat
				samples and other required samples will be taken during each monitoring period
				and the reasons for choosing those sites; the sites include the following;
(A) the sites set out in
				40 C.F.R.
				141.853; the department will allow an
				alternative sampling location for at least one repeat sample upstream or
				downstream of the original sampling site as allowed under
				40 C.F.R.
				141.853(a)(5);
(B) for a seasonal system, the location of
				the system start-up coliform sample taken before the system serves water to the
				public;
(C) for a groundwater
				system, the source water sampling points described in
				40 C.F.R.
				141.402, adopted by reference in
				18 AAC 80.010(a);
(9) for a public water system with only one
				service connection, a narrative statement that
(A) indicates that the routine sample will be
				taken from the single service connection; and
(B) addresses how repeat monitoring will be
				done in the case of a positive routine sample, as provided under
				40 C.F.R.
				141.858(a)(2), adopted by
				reference in ISAAC 80.010(a);
(10) a map of the public water system showing
				the location of source waters and types, water treatment facilities, water
				storage facilities, distribution lines, pressure zones, the first service
				connection, pressure reducing stations, booster stations, dead ends and the
				last service connection, major commercial and industrial areas, and the areas,
				zones, or actual sites for routine sampling, repeat sampling, and other
				sampling as provided under (8) of this subsection; the owner may provide a
				hand-drawn map, an as-built map, a street map, or a schematic of the water
				system; for a large system, the owner may indicate sampling sites by dividing
				the distribution system into sampling zones instead of pinpointing sampling
				taps, and may draw sampling zones according to pressure zones, areas served by
				a particular source water, or areas seized by a particular storage or treatment
				facility; and
(11) other
				information as needed on a case-by-case basis for the department to make a
				determination regarding plan adequacy.