DDW-2024-012418

J. Paul Wright <[e-mail]>
Cottam Well #3 (WS006) - Equipping Review Comments (System 27071, File # 12871)
1 message
J. Paul Wright <[e-mail]>Thu, Sep 19, 2024 at 4:22 PM
To: Russ Vernon <[e-mail]>
Cc: Todd Gardner <[e-mail]>, Trinity Stout <[e-mail]>
9/19/24, 4:22 PM State of Utah Mail - Cottam Well #3 (WS006) - Equipping Review Comments (System 27071, File # 12871)
https://mail.google.com/mail/u/0/?ik=f3bcb897f8&view=pt&search=all&permthid=thread-a:r8794840408553807539&simpl=msg-a:r-584386126483172…1/2
Russ,
I have reviewed the plans for equipping the Cottam Well #3 and I have the follow review comments/questions:
1) Sheet 7, Item LL, Smooth Nose Sample Tap should be the first item in the discharge piping after the wellhead, before
the check valve, pressure gauge, and flow meter. Please change where it is located.
2) Sheet 8, Item KK, Air Vac Valve calls out a #14 screen, but there needs to be note or detail to ensure it is also
downturned. It is not clear that is the case in the drawing.
3) In the chlorinator room, can you please verify that the light switch and exhaust fan switch are separate and both near
the door.
4) Your response to Item 8 on the chlorinator information stated the following: "The Point of Entry (POE) sampling
location will be in the existing wholesale and distribution systems as now sampled." I need to know the exact location of
where the Point of Entry sample location is prior to the first customer. For example, the water system will be required to,
at a minimum, sample at that location daily, but it may need to be continuous. So, if they have a chlorine analyzer, for
example, where is that located (ie, in one of the well houses after the tank, what sample tap, etc.). I have to describe this
location in the plan approval letter.
5) The wellhead pedestal on Sheet 8 does not have a lot of detail on it I have a couple of comments/.questions:
It needs to be a minimum of 12 inches above the well house floor. There is no dimension describing that in the
drawing.
Is there a well casing air vent? Because there probably should be and it needs to be downturned and with a #14
screen on the end of the downturn.
Also, can you verify that you have a means to measure drawdown in the well.
Please let me know if you have any questions.
Paul
--
J. Paul Wright, P.E. | District Engineer | Southwest Utah District
435.986.2590 (office) | 435.680.0163 (cell) | 435.986.2595 (fax)
620 S 400 E #400, St. George, UT 84770
DEQ WEBSITE
Emails to and from this email address may be considered public records and thus subject to Utah GRAMA requirements.
9/19/24, 4:22 PM State of Utah Mail - Cottam Well #3 (WS006) - Equipping Review Comments (System 27071, File # 12871)
https://mail.google.com/mail/u/0/?ik=f3bcb897f8&view=pt&search=all&permthid=thread-a:r8794840408553807539&simpl=msg-a:r-584386126483172…2/2