(1) Alternative Methods.
In addition to conventional surface water treatment,
coagulation, sedimentation, and filtration as outlined in Rule R309-525,
several alternative filtration methods may be suitable for treating surface
water. They are direct filtration, slow sand filtration, membrane filtration,
and diatomaceous earth filtration.
(2) Incorporation of Other Rules.
The following requirements are incorporated into Sections
R309-530-5 through
R309-530-9 for alternative surface water treatment methods.
(d) Color Coding and Pipe Marking, Section
R309-525-8.
(g) Operation and
Maintenance Manuals, Section
R309-525-19.
(i) Disposal of Treatment Plant Waste,
Section
R309-525-23.
(j) Disinfection, Rule R309-520.
(3) Source Water Quality Data.
(a) A water supplier proposing to use
alternative filtration to treat surface water or groundwater under the direct
influence of surface water shall obtain sufficient source water quality data
to:
(i) determine the feasibility of
alternative filtration treatment;
(ii) identify substances that may affect the
alternative filtration process and finished water quality;
(iii) estimate productivity of the
alternative filtration process; and
(iv) determine if seasonal variation is
substantial enough to affect design.
(b) Source water quality data required by
Subsection
R309-530-4(3) shall be collected no more than two years prior to the
date that plans and specifications for a treatment facility are submitted to
the division.
(c) The source water
quality data for alternative filtration shall include at least:
(i) one round of sampling for the
contaminants required for initial analysis by Subsection
R309-515-4(5);
and
(ii) four quarters of sampling
collected over a period of 12 months for:
(A)
alkalinity;
(B) pH;
(C) temperature;
(D) total organic carbon;
(E) total suspended solids;
(F) turbidity; and
(G) any additional parameter needed to design
the treatment facility as determined by consultation with the
division.
(d)
No later than the date that plans and specifications for an alternative
filtration facility are submitted to the division, a water supplier shall also
submit:
(i) a summary of source water quality
data used to design the facility; and
(ii) a description of how the source water
quality data address items (i) through (iv) of Subsection
R309-530-4(3)(a).
Notes
Utah Admin. Code R309-530-4
Amended by
Utah
State Bulletin Number 2022-06, effective
3/31/2022
