Section 18 AAC 80.410 - Sampling siting plan review and approval(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.(c) The department will review and approve the sample siting plan as follows: (1) the owner shall submit a new or a revised plan to the department for review and approval, as follows: (A) for a new public water system, before the system is allowed to serve water to the public under 18 AAC 80.210;(B) if a change to the public water system may require a plan revision to ensure the plan is appropriate to the system, including changes in (i) monitoring frequency, including quarterly to monthly;(ii) the system's operation period;(iii) the population served;(v) the system's infrastructure;(2) the owner shall keep the approved sample siting plan in the public water system's files; during a sanitary survey or other department-required inspection of the system, the owner shall make the plan available to the inspector as requested; the inspector shall review the plan and shall note any deficiencies in the plan, making suggestions for improvement subject to further department review and approval;(3) based on the department's review, the department may (A) make revisions directly to the plan, including modifying the system's monitoring schedule if the department determines that a different schedule is appropriate for the system; or(B) require the owner to revise the plan; if a plan reviewed under this section has (i) major deficiencies, the department will send the owner a report of these deficiencies within 30 days after receiving the plan; the owner shall submit a revised plan to the department within 30 days after receiving the report, unless the department and the owner agree in writing to another date; or(ii) minor deficiencies, the department will consult with the owner, and after consultation, the owner shall agree in writing to a date for the owner to submit a revised plan;(4) the department will notify the owner in writing when the sample siting plan is approved.Eff. 10/1/99, Register 151; am 1/11/2006, Register 177; am 4/24/2009, Register 190; am 5/20/2011, Register 198; am 2/11/2017, Register 221, April 2017 Authority:AS 46.03.020
AS 46.03.050
AS 46.03.710
AS 46.03.720