DDW-2024-009753

Annual Drinking Water Quality Report
-2023-

Gunlock Special Service District
411 N. Main St.
Gunlock, Utah 84733

We're pleased to present to you this year's Annual Drinking Water Quality Report. This report is designed
to inform you about the quality of the water and services we deliver to you every day. Our constant goal
is to provide you with a safe and dependable supply of drinking water. We want you to understand the
efforts we make to continually improve the water treatment process and protect our water resources. We
are committed to ensuring the quality of your water. Our water source s have been determined to be from
groundwater. One of our water sources is a spring located one mile above town in the Santa Clara
Drainage. Our second water source is a well located within the Gunlock City Limits.

The Drinking Water Source Protection Plan for The Gunlock Special Service District is available for your
review. It contains information about source protection zones, potential contamination sources and
management strategies to protect our drinking water. Our sources have been determined to have a low
level of susceptibility to potential contamination from sources such as septic tanks and roads. We have
also developed management strategies to further protect our sources from contamination. Please contact
us if you have questions or concerns about our source protection plan.

There are many connections to our water distribution system. When connections are properly installed
and maintained, the concerns are very minimal. However, unapproved and improper piping changes or
connections can adversely affect not only the availability, but also the quality, of the water. A cross
connection may let polluted water or even chemicals mingle into the water supply system when not
properly protected. This not only compromises the water quality but can also affect your health. So,
what can you do? Do not make or allow improper connections at your homes. Even that unprotected
garden hose lying in the puddle next to the driveway is a cross connection. The unprotected lawn
sprinkler system after you have fertilized or sprayed is also a cross connection. When the cross
connection is allowed to exist at your home it will affect you and your family first. If you’d like to learn
more about helping to protect the quality of our water, call us for further information about ways you can
help.

I'm pleased to report that our drinking water meets federal and state requirements.

This report shows our water quality and what it means to you our customer. If you have any questions
about this report or concerning your water utility, please Judy Leavitt at 1-435-574-8500.

We want our valued customers to be informed about their water utility. If you want to learn more, please
attend any of our regularly scheduled meetings. They are held on the first Wednesday of February, April,
June, September, November and December at 7:00 p.m. in The Gunlock Town Hall.

The Gunlock Special Service District routinely monitors for constituents in our drinking water in
accordance with the Federal and Utah State laws. The following table shows the results of our monitoring
for the period of January 1st to December 31st, 2023 or the most recent sample data. All drinking water,
including bottled drinking water, may be reasonably expected to contain at least small amounts of some
constituents. It's important to remember that the presence of these constituents does not necessarily pose
a health risk.

CONSTITUENT TABLE DEFINITIONS
In the following table you will find many terms and abbreviations you might not be familiar with.
To help you better understand these terms we've provided the following definitions:

Non-Detects (ND) - Laboratory analysis indicates that the constituent is not present.
ND/Low - High - For water systems that have multiple sources of water, the Utah Division of Drinking
Water has given water systems the option of listing the test results of the constituents in one table, instead
of multiple tables. To accomplish this, the lowest and highest values detected in the multiple sources are
recorded in the same space in the report table.
Parts per million (ppm) or Milligrams per liter (mg/l) - One part per million corresponds to one
minute in two years or a single penny in $10,000.
Parts per billion (ppb) or Micrograms per liter (ug/l) - One part per billion corresponds to one minute
in 2,000 years, or a single penny in $10,000,000.
Parts per trillion (ppt) or Nanograms per liter (nanograms/l) - One part per trillion corresponds to one
minute in 2,000,000 years, or a single penny in $10,000,000,000.
Parts per quadrillion (ppq) or Picograms per liter (picograms/l) - One part per quadrillion
corresponds to one minute in 2,000,000,000 years or one penny in $10,000,000,000,000.
Picocuries per liter (pCi/L) - Picocuries per liter is a measure of the radioactivity in water.
Millirems per year (mrem/yr) - Measure of radiation absorbed by the body.
Million Fibers per Liter (MFL) - Million fibers per liter is a measure of the presence of asbestos fibers
that are longer than 10 micrometers.
Nephelometric Turbidity Unit (NTU) - Nephelometric turbidity unit is a measure of the clarity of water.
Turbidity in excess of 5 NTU is just noticeable to the average person.
Action Level (AL) - The concentration of a contaminant which, if exceeded, triggers treatment or other
Maximum Contaminant Level (MCL) - The “Maximum Allowed” (MCL) is the highest level of a
contaminant that is allowed in drinking water. MCLs are set as close to the MCLGs as feasible using the
best available treatment technology.
Maximum Contaminant Level Goal (MCLG) - The “Goal”(MCLG) is the level of a contaminant in
drinking water below which there is no known or expected risk to health. MCLGs allow for a margin of
safety.
Date- Because of required sampling time frames i.e. yearly, 3 years, 4 years and 6 years, sampling dates
may seem out-dated.
Waivers (W)- Because some chemicals are not used or stored in areas around drinking water sources,
some water systems have been given waivers that exempt them from having to take certain chemical
samples, these waivers are also tied to Drinking Water Source Protection Plans.

CONSTITUENT TABLE - TEST RESULTS
CONTAMINANT VIOL.
Y/N
LEVEL
DETECTED
UNIT
MEAS. MCLG MCL DATE
SAMPLED
LIKELY SOURCE OF
CONTAMINATION
MICROBIOLOGICAL CONTAMINANTS
Total Coliform Bacteria N 1 N/A 0 5 2023 Naturally present in the
environment
Fecal coliform and E.coli N 0 N/A 0 0 2023 Human and animal fecal
waste
Turbidity
for Ground Water N 0.1 NTU N/A 0.3 2022 Soil Runoff
RADIOLOGICAL CONTAMINANTS
Alpha emitters N 1.7 pCi/1 0 15 2022 Erosion of natural deposits
Radium-228 N 0.37 pCi/1 0 5 2022 Erosion of natural deposits
INORGANIC CONTAMINANTS
Arsenic N 7 ppb 0 10 2022
Erosion of natural deposits;
runoff from orchards; runoff
from glass and electronics
production wastes
Barium N 146 ppb 2000 2000 2022
Discharge of drilling wastes;
discharge from metal
refineries; erosion of natural
deposits
Copper
a. 90% results
b. # of sites that
exceed the AL
N a.140
b. 0 ppb 1300 AL=1300 2022
Corrosion of household
plumbing systems; erosion of
natural deposits
Fluoride N 264 ppb 4000 4000 2022
Erosion of natural deposits;
water additive which
promotes strong teeth;
discharge from fertilizer and
aluminum factories
Lead
a. 90% results
b. # of sites that
exceed the AL
N a. 4
b. 0 ppb 0 AL=15 2022
Corrosion of household
plumbing systems, erosion of
natural deposits
Nitrate (as Nitrogen) N 376 ppm 10,000 10,000 2023
Runoff from fertilizer use;
leaching from septic tanks,
sewage; erosion of natural
deposits
Selenium N 4 ppb 50 50 2022
Discharge from petroleum
and metal refineries; erosion
of natural deposits; discharge
from mines
Sodium N 27 ppm 500 None set
by EPA 2022
Erosion of natural deposits;
discharge from refineries and
factories; runoff from
landfills.
Sulfate N 90 ppm 1,000* 1,000* 2022
Erosion of natural deposits;
discharge from refineries and
factories; runoff from
landfills, runoff from
cropland
Total Dissolved Solids
(TDS) N 488 ppm 2,000** 2,000** 2022 Erosion of natural deposits

Some people who drink water containing arsenic in excess of the MCL over many years could experience
skin damage or problems with their circulatory system and may have an increased risk of getting cancer.

Infants and children who drink water containing lead in excess of the action level could experience delays
in their physical or mental development. Children could show slight deficits in attention span and learning
abilities. Adults who drink this water over many years could develop kidney problems or high blood
pressure.

Infants below the age of six months who drink water containing nitrate in excess of the MCL could
become seriously ill and, if untreated, may die. Symptoms include shortness of breath and blue-baby
syndrome.

While your drinking water meets EPA's standard for arsenic, it does contain low levels of arsenic.
EPA's standard balances the current understanding of arsenic's possible health effects against the
costs of removing arsenic from drinking water. EPA continues to research the health effects of low
levels of arsenic which is a mineral known to cause cancer in humans at high concentrations and is
linked to other health effects such as skin damage and circulatory problems.

Infants and young children are typically more vulnerable to lead in drinking water than the general
population. It is possible that lead levels at your home may be higher than at other homes in the
community as a result of materials used in your home’s plumbing. If you are concerned about elevated
lead levels in your home’s water, you may wish to have your water tested and flush your tap for 30
seconds to 2 minutes before using tap water. Additional information is available from the Safe Drinking
Water Hotline [phone]).

If present, elevated levels of lead can cause serious health problems, especially for pregnant women and
young children. Lead in drinking water is primarily from materials and components associated with
service lines and home plumbing. The Gunlock Special Service District is responsible for providing high
quality drinking water, but cannot control the variety of materials used in plumbing components. When
your water has been sitting for several hours, you can minimize the potential for lead exposure by
flushing your tap for 30 seconds to 2 minutes before using water for drinking or cooking. If you are
concerned about lead in your water, you may wish to have your water tested. Information on lead in
drinking water, testing methods, and steps you can take to minimize exposure is available from the Safe
Drinking Water Hotline or at http://www.epa.gov/safewater/lead.

As you can see by the table, our system had no violations. We’re proud that your drinking water meets or
exceeds all Federal and State requirements. We have learned through our monitoring and testing that
some constituents have been detected. The EPA has determined that your water IS SAFE at these levels.

All sources of drinking water are subject to potential contamination by constituents that are naturally
occurring or are man-made. Those constituents can be microbes, organic or inorganic chemicals, or
radioactive materials. All drinking water, including bottled water, may reasonably be expected to contain
at least small amounts of some contaminants. The presence of contaminants does not necessarily indicate
that the water poses a health risk. More information about contaminants and potential health effects can
be obtained by calling the Environmental Protection Agency’s Safe Drinking Water Hotline at 1-800-426-
4791.

MCLs are set at very stringent levels. To understand the possible health effects described for many
regulated constituents, a person would have to drink 2 liters of water every day at the MCL level for a
lifetime to have a one-in-a-million chance of having the described health effect.

The Total Coliform Rule requires water systems to meet a stricter limit for coliform bacteria. Coliform
bacteria are usually harmless, but their presence in water can be an indication of disease-causing bacteria.
When coliform bacteria are found, special follow-up tests are done to determine if harmful bacteria are
present in the water supply. If this limit is exceeded, the water supplier must notify the public by
newspaper, television or radio. To comply with the stricter regulation, we have increased the average
amount of chlorine in the distribution system.

As a precaution we always notify physicians and health care providers in this area if there is ever a higher
than normal level of nitrates in the water supply.

Lead in drinking water is rarely the sole cause of lead poisoning, but it can add to a person's total lead
exposure. All potential sources of lead in the household should be identified and removed, replaced or
reduced.

Some people may be more vulnerable to contaminants in drinking water than the general population.
Immuno-compromised persons such as persons with cancer undergoing chemotherapy, persons who have
undergone organ transplants, people with HIV/AIDS or other immune system disorders, some elderly,
and infants can be particularly at risk from infections. These people should seek advice about drinking
water from their health care providers. EPA/CDC guidelines on appropriate means to lessen the risk of
infection by cryptosporidium and other microbiological contaminants are available from the Safe
Drinking Water Hotline [phone]).

We at The Gunlock Special Service District work around the clock to provide top quality water to every
tap. We ask that all our customers help us protect our water sources, which are the heart of our
community, our way of life and our children’s future.
-CCR 2023 COMPLIANCE LETTER-

The Gunlock Special Service District
411 N. Main St.
Gunlock, Utah 84733

June 17, 2024

Brandi Smith
CCR Compliance
Division of Drinking Water
P.O. Box 144830
Salt Lake City, Utah 84114-4830
Email: [e-mail]

Dear Ms. Brandi Smith:

Subject: Consumer Confidence Report for The Gunlock Special Service District , #27005

Enclosed is a copy of The Gunlock Special Service District Consumer Confidence Report. It
contains the water quality information for our water system for the calendar year 2023 or the
most recent sample data.

We have delivered this report to our customers by:

.
• Posting a notice of the availability of the report on The Gunlock Town Hall door where
meetings are held, then mailing a copy of the report to those who request it.

• Putting a notice of the availability of the report on our water bills and then mailing a copy
of the report to those who request it.

If you have any questions, please contact me at 435-574-8500.

Sincerely,

Judy Leavitt
The Gunlock Special Service District