DDW-2025-005582

195 North 1950 West • Salt Lake City, UT Mailing Address: P.O. Box 144830 • Salt Lake City, UT 84114-4830 Telephone [phone] • Fax [phone] • T.D.D. [phone]
www.deq.utah.gov Printed on 100% recycled paper
State of Utah

SPENCER J. COX Governor DIEDRE HENDERSON Lieutenant Governor
Department of Environmental Quality
Tim Davis Executive Director DIVISION OF DRINKING WATER Nathan Lunstad, Ph.D., P.E. Director
May 20, 2025

MATTHEW LEE MACKAY ZION NP - EAST GATE SYSTEM ZION NATIONAL PARK ST.RT.9 SPRINGDALE, UT 84767
Subject: Notice of Violation – ZION NP - EAST GATE SYSTEM - UTAH27052 MATTHEW LEE MACKAY:
Our records show this water system is in violation of the State of Utah Public Drinking Water Rules.
The Division of Drinking Water (the Division) is missing analytical results for the following analytes and compliance periods in 2025: Compliance Period Start Date Compliance Period End Date Analyte Facility Name Facility Code
01/01/2025 03/31/2025 IRON EAST GATE WELL CHLORINATOR AND FILTER
TP001
01/01/2025 03/31/2025 MANGANESE EAST GATE WELL
CHLORINATOR
AND FILTER
TP001

Failure to collect these samples is in violation of Utah Administrative Code Rule 309-205.
The violations result in the addition of points to this system’s Improvement Priority System (IPS) report for each missing sample and could adversely affect this water system’s rating (see R309-400).
To resolve this violation, please collect the missing sample as soon as possible within the next 30 days. Upon receipt of results, we will resolve the violation and remove the points from the system’s IPS report. Additionally, please notify the Division if this letter is in error.
MATTHEW LEE MACKAY Page 2 of 4
May 20, 2025
In accordance with the public notice requirements given in R309-220-7, the system must notify all its consumers of this violation within one year after the system learns of the violation. Please reference the enclosed public notice template for guidance. Non community water systems must
provide notice using one or more of the following methods:

• Posting the notice in conspicuous locations throughout the distribution system frequented by persons served by the system
• Mail or direct delivery to each customer and service connection
• Another method reasonably calculated to reach other persons served by the system. Other methods include publication in a local newspaper/newsletter, email to students or employees, or delivery of multiple copies in central locations (e.g., community centers)
A copy of the notice you send to the system’s consumers must be approved by the Division. Please send a copy of the notice to the Division at [e-mail] and [e-mail] prior to issuing the notice.
Please contact David Kruse at [phone] or ([e-mail]) if you have any questions or need assistance. Sincerely,
Mark Berger Monitoring and Standards Section Manager
Enclosure: Public Notice Template cc: MATTHEW LEE MACKAY, ZION NP - EAST GATE SYSTEM, [e-mail] Jeremy Roberts, SOUTHWEST HEALTH DEPT, [e-mail] Paul Wright P.E., DEQ District Engineer, [e-mail] Mark Berger, Division of Drinking Water, [e-mail] David Kruse, Division of Drinking Water, [e-mail]