DDW-2025-004191

2024 Consumer Confidence Report
2024 Annual Drinking Water Quality Report
Grantsville City

Grantsville City is pleased to present you, our customer, with the most current 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. If you
have any questions about this report or concerning your water utility, please contact Christy Montierth,
[e-mail]. 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. City Council meetings
are held on the 1st and 3rd Wednesday of every month.

The Grantsville City provides its consumers with ground water. Our water sources includes 6 wells.
Corrosion of pipes, plumbing fittings and fixtures may cause metals, including lead and copper, to enter
drinking water. To assess corrosion of lead and copper, Grantsville City conducts tap sampling for lead
and copper at 30 selected sites every 3 years.
Grantsville City has completed an initial lead service line inventory. This inventory includes information
on the service line material that connects water mains to buildings/houses.
The Drinking Water Source Protection Plan for Grantsville City 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 from potential contamination sources. 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.

Total Coliform Positive Results
Water samples taken in November 2024 confirmed the presence of total coliform bacteria. Coliforms are
bacteria that are naturally present in the environment and are used as an indicator that other, potentially
harmful, bacteria may be present. Total coliforms are common in the environment and are generally not
harmful themselves. The presence of these bacteria can indicate that the water may have been
contaminated with organisms that can cause disease. Some symptoms may include diarrhea, cramps,
nausea, and possible jaundice, headaches and fatigue. When the monthly samples confirmed the
presence of total coliform bacteria, we took steps to identify and correct the problem. Subsequent
monthly sampling has confirmed the absence of total coliforms in the water system

Fecal coliform/E.Coli
Water samples taken in November 2024 confirmed the presence of fecal coliforms or Escherichia
coli. The presence of fecal coliforms and E. coli in drinking water is serious because it is associated with
sewage or animal waste and can cause disease. The presence of this bacteria in our system was a result
of external factors such as weather conditions, or sampling procedures. Microbes in these wastes can
cause short-term effects, such as diarrhea, cramps, nausea, headaches, or other symptoms. They may
pose a special health risk for infants, young children, and people with severely compromised immune
systems. When the November samples confirmed the presence of fecal coliforms and E. coli we did

2024 Consumer Confidence Report
follow-up testing at the site, above and below the site, and at the source all came back
negative, confirming that this was a sampling anomaly rather than an issue with the water source.
Subsequent monthly sampling has confirmed the absence of fecal coliforms and E. coli in the water
system.

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. You can also visit
https://cms9files.revize.com/grantsvilleut/Document_Center/Department/Public%20Works/Water/Bac
kflow%20Prevention.pdf

Grantsville City routinely monitors contaminants in our drinking water in accordance with the Federal
and Utah State laws. The following table shows the results of our monitoring for 2024. It is important to
remember that all water sources of drinking water contain some naturally occurring contaminants. At
low levels, these substances are generally not harmful in our drinking water. Removing all contaminants
would be extremely expensive, and in most cases, would not provide increased protection of public
health.

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.

2024 Consumer Confidence Report

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
requirements which a water system must follow.

Treatment Technique (TT) - A treatment technique is a required process intended to reduce the level of
a contaminant in drinking water.

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.

Maximum Residual Disinfectant Level (MRDL) - The highest level of a disinfectant allowed in drinking
water. There is convincing evidence that addition of a disinfectant is necessary for control of microbial
contaminants.

Maximum Residual Disinfectant Level Goal (MRDLG) - The level of a drinking water disinfectant below
which there is no known or expected risk to health. MRDLGs do not reflect the benefits of the use of
disinfectants to control microbial contaminants.

Date- Because of required sampling time frames i.e. yearly, 3 years, 4 years and 6 years, sampling dates
may seem outdated.

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.

TEST RESULTS
Contaminant Violation
Y/N
Level
Detected
ND/Low-
High
Unit
Measurement MCLG MCL Date
Sampled Likely Source of
Contamination
Microbiological Contaminants

2024 Consumer Confidence Report
Total Coliform
Bacteria N 1 N/A 0
Presence of
coliform
bacteria in
5% of
monthly
samples
2024 Naturally present in the
environment
Fecal coliform and E.coli N 1 N/A 0
If a routine
sample and
repeat
sample are
total
coliform
positive, and
one is also
fecal
coliform or E.
coli positive
2024 Human and animal fecal
waste
Turbidity
for Ground Water N 0.24-1.21 NTU N/A 5 2023,
2024 Soil runoff
Inorganic Contaminants
Arsenic N 0-1.7 ppb 0 10 2023,
2024
Erosion of natural deposits;
runoff from orchards;
runoff from glass and
electronics production
wastes
Barium N 0.143 ppb 2000 2000 2023,
2024
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.0.086

b.0
ppm 1.3 AL=1.3 2023
Corrosion of household
plumbing systems; erosion
of natural deposits
Fluoride N 0.13 ppb 4000 4000 2023,
2024
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. 2.1

b.0
ppb 0 AL=15 2023
Corrosion of household
plumbing systems, erosion
of natural deposits
Nitrate (as Nitrogen) N 0.495-
1.036 ppm 10 10 2024
Runoff from fertilizer use;
leaching from septic tanks,
sewage; erosion of natural
deposits
Selenium N 0-1.1 ppb 50 50 2023,
2024
Discharge from petroleum
and metal refineries;
erosion of natural deposits;
discharge from mines
Sodium N 22.7-
36.024 ppm
None
set by
EPA
None set by
EPA
2023,
2024
Erosion of natural deposits;
discharge from refineries
and factories; runoff from
landfills.
Sulfate N 11.117-
15.972 ppm 1000 1000 2023,
2024
Erosion of natural deposits;
discharge from refineries
and factories; runoff from
landfills, runoff from
cropland

2024 Consumer Confidence Report
If the sulfate level of a public water system is greater than 500 ppm, the supplier must satisfactorily demonstrate that: a) no better water
is available, and b) the water shall not be available for human consumption from commercial establishments. In no case shall water
having a level above 1000 ppm be used.
TDS (Total Dissolved solids) N 344-508 ppm 2000 2000 2023,
2024 Erosion of natural deposits
If TDS is greater than 1000 ppm the supplier shall demonstrate to the Utah Drinking Water Board that no better water is available. The
Board shall not allow the use of an inferior source of water if a better source is available.
Disinfection By-products
TTTTHM [Total
trihalomethanes] N 0-2.17 ppb 0 80 2024 By-product of drinking
water disinfection
Radioactive Contaminants
Alpha emitters N 0-3.05 pCi/1 0 15 2023,
2024 Erosion of natural deposits
Radium 228 N 0.314-
0.999 pCi/1 0 5 2023,
2024 Erosion of natural deposits
Volatile Organic Contaminants
Toluene N 0.001 ppb 1000 1000 2023
2024 Discharge from petroleum
factories

Why are there contaminants in my drinking water?

Drinking water, including bottled water, may reasonably be expected to contain at least a small amount
of some contaminants. The presence of contaminants does not necessarily indicate that the water
poses a health risk. More information about contaminants and the potential health effects can be
obtained by calling the Environmental Protection Agency’s (EPA) Safe Drinking Water Hotline at (800-
426-4791). The sources of drinking water (both tap and bottled water) include rivers, lakes, streams,
reservoirs, springs and wells. As water travels over the surface of the land or through the ground, it
dissolves naturally occurring minerals and, in some cases, radioactive material, and can pick up
substances resulting from the presence of animals or from human activity: microbial contaminates,
such as viruses and bacteria, that may come from sewage treatment plants, septic systems, agricultural
livestock operations and wildlife; inorganic contaminants, such as salts and metals, which can be
naturally occurring or result from urban stormwater runoff, industrial, or domestic wastewater
discharges, oil and gas production, mining, or farming; pesticides and herbicides, which may come from
a variety of sources such as agricultural, urban stormwater runoff, and residential uses; organic
chemical contaminants, including synthetic and volatile organic chemicals, which are by-products of
industrial processes and petroleum production, and can also come from gas stations, urban stormwater
runoff, and septic systems; and radioactive contaminants, which can be naturally occurring or be the
result of oil and gas production and mining activities. To ensure that tap water is safe to drink, EPA
prescribes regulations that limit the amount of certain contaminants in water provided by public water
systems. Food and Drug Administration (FDA) regulations establish limits for contaminants in bottled
water which must provide the same protection for public health.

If present, lead can cause serious health problems, especially for pregnant women and young children.
Grantsville City has conducted 30 lead samples during a 3 year period. Sampling results can be obtained
by calling 435-884-1679 or emailing [e-mail].

Grantsville City is responsible for providing high quality drinking water but cannot control the variety of
materials used in plumbing components. Lead in drinking water is primarily from material and

2024 Consumer Confidence Report
components associated with service lines and home plumbing. You share the responsibility for
protecting yourself and your family from the lead in your home plumbing. You can take responsibility by
identifying and removing lead materials within your home plumbing and taking steps to reduce your
family's risk. If 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. You
can also use a filter certified by an American National Standards Institute accredited certifier to reduce
lead in drinking water. 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. If you are concerned about lead in your water, you may wish to have your
water tested. Please contact Grantsville City 435-884-1679. Information on lead in drinking water, testing
methods, and steps you can take to minimize exposure is available at
http://www.epa.gov/safewater/lead.

Some people may be more vulnerable to contaminants in drinking water than the general population.
Immunocompromised people such as people with cancer undergoing chemotherapy, people 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 from their health
care providers about drinking water. 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 Grantsville City 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.