DDW-2024-005940

February 8, 2024

Utah Division of Drinking Water
Attn: Paul Wright, P.E.
195 N 1950 W
Salt Lake City, UT 84116

Re: Enoch City – Chlorinator Permitting

Dear Mr. Wright,

Your email dated February 7, 2024, has been reviewed and the questions/comments given in that email have
been addressed. I have enclosed the following additional documents with this letter:

1. Comment resolution form.
2. Accu-Tab PowerPro Model 3075 manufacturer documentation.
3. Revised well information sheets.

We appreciate your review of this project and look forward to DDW’s approval. Please contact me at (435)
652-8450 with any questions.

Sincerely,

Khevar McLeod
Project Manager
[e-mail]

Attachments
COMMENT RESOLUTION FORM (Responses to J. Paul Wright's February 7, 2024 email)
ENOCH CITY - CHLORINATOR PERMITTING
Comment Resolution Responder Date
1. You have not provided any manufacturer information, sheets, or details of the Accutab
Chlorinator system. This would be helpful because I need to know that these systems are
enclosed and that there are no openings where contamination could be introduced and that
they are ANSI/NSF 61 certified.
See attached submittal documents for Enoch City - AccuTab Chlorinators which were provided by
Waterford Services, LLC.KRM 2/8/2024
2. Each of the well design sheet spells out the injection and flow rate through the chlorinators.
How are you injecting that back into the flow line from the well? The DDW rule requires that
positive displacement pumps are used for injection, but I have typically seen small booster
pumps for these tablet chlorinators. Your drawings don't provide this information for each
chlorinator and it should be included.
Grundfos pump is included as part of the chlorinator system. See page 65, bill of material item No.
33.KRM 2/8/2024
3. Just to clarify, it looks like the maximum chlorine concentration for these tablet chlorinators is
0.05% (500 ppm) but you are anticipating only about 25.7 ppm solution injection back into the
flow stream (This would actual be the answer to #1 on each information sheet since the 68%
tabs are the concentrated solid, not the solution %).
Information sheets have been modified to show 25.7 ppm solution injected back into the flow
stream for question #1. KRM 2/8/2024
4. How is the system planning on storing all of their calcium hypochlorite tabs? It should be
done safely and according to manufacturer guidelines.
Calcium hypochlorite tabs will be stored locked up at each individual well sites in its orginal
container with the lid tightly closed in a cool, dry, well-ventilated space that has fans. KRM 2/8/2024
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