DDW-2025-004233

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Consumer Confidence
Report

Annual Drinking Water Quality Report

Winchester Hills Water Company 2024
System # 27049

We’re pleased to provide you with this year's Annual Water Quality Report. We want to keep
you informed about the excellent water and services we have delivered to you over the past year.
Our goal is and always has been, to provide to you a safe and dependable supply of drinking
water. Our ground water sources are Well #1 (West Well) and Well #2 (East Well), located in
the Big Sandy area, Winchester Hills, Washington County, Utah.

Winchester Hills Water Company has a Drinking Water Source Protection Plan that is available
for review. It provides more information such as potential sources of contamination and our
source protection areas. It has been determined we have a low susceptible level to potential
sources of contamination, if you have any questions regarding source protection, contact the
office to review our source protection plan. Our source is in a remote location, and there are no
potential contamination sources in the protection zones, so we consider our source to have a low
susceptibility to potential contamination events.

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 contact us at [phone]
or [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 monthly meetings
held at the water company office (1090 West 5830 North, St. George, Utah).
Winchester Hills Water Company 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, 2024. All drinking water, including
bottled drinking water, may be reasonably expected to contain at least small amounts of some
constituents. It is important to remember that the presence of these constituents does not
necessarily pose a health risk.

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
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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.

Avg – Regulatory compliance with some MCLs are based on running annual average of monthly
samples.

Parts per million (ppm) or Milligrams per liter (mg/l) – One ounce in 7,350 gallons of water,
one minute in two years, or a single penny in $10,000.

Parts per billion (ppb) or Micrograms per liter (ug/l) – One ounce in 7,350,000 gallons of
water, 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/1) – 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 requirements which a water system must follow.

Maximum Contaminant Level (MCL) – 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 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 (MCRDLG) – 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, 6 years, sampling
dates may seem outdated.

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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
TCR Year
Sampled
Positive
Sample
Count
MCLG MCL Violation
Coliform Bacteria 2024 1 0 5 N Naturally present in the environment.
Microbial
Contaminants
Year
Sampled
Positive
Sample
Count
MCLG MCL Violation
E. Coli 2024 0 0 No goals N Human and animal fecal waste.
Lead and Copper Year
Sampled MCLG
Action
Level
(AL)
90th
Percentile
#
Sites
Over
AL
Units Violation Likely Source of Contamination
Copper 2023 1.3 1.3 0.119 0 ppm N
Erosion of natural deposits; leaching
from wood preservatives; corrosion of
household plumbing systems.
Lead 2023 0 15 0.7 0 ppb N Corrosion of household plumbing
systems; erosion of natural deposits.
Inorganic
Contaminants
Year
Sampled
Lowest
Level
Detected
Highest
Level
Detected
MCLG MCL Units Violation Likely Source of Contamination
Arsenic 2022 4.9 4.9 0 10 ppb N
Erosion of natural deposits; runoff from
orchards; runoff from glass and
electronics production wastes.
Barium 2022 .018 .018 2 2 ppm N
Discharge of drilling wastes; discharge
from metal refineries; erosion of natural
deposits.
Fluoride 2022 1.16 1.16 4 4 ppm N
Water additive which promotes strong
teeth; erosion of natural deposits;
discharge from fertilizer and aluminum
factories.
Nitrate 2024 0.338 0.338 10 10 ppm N
Runoff from fertilizer use; leaching
from septic tanks, sewage; erosion of
natural deposits.
Selenium 2022 0.9 0.9 50 50 ppb N
Discharge from petroleum and metal
refineries; erosion of natural deposits;
discharge from mines.
Sodium 2022 102.546 102.546 500 None ppm N
Discharge from petroleum and metal
refineries; Erosion of natural deposits;
Discharge from mines.
Sulfate 2022 253.651 253.651 1000 1000 ppm N
Erosion of natural deposits; discharge
from refineries and factories; runoff
from landfills, runoff from cropland.
Thallium 2022 1 1 0.5 2 ppb N
Discharge from electronics, glass, and
leaching from ore-processing sites; drug
factories.
Total Dissolved
Solids (TDS) 2022 600 600 2000 2000 ppm N Erosion of natural deposits.
Lead and Copper Year
Sampled
Lowest
Level
Highest
Level MCLG MCL Units Violation Likely Source of Contamination
Copper 2023 0.012 0.119 1.3 1.3 ppm N
Erosion of natural deposits; leaching
from wood preservatives; corrosion of
household plumbing systems.
Lead 2023 0 0.8 0 15 ppb N Corrosion of household plumbing
systems; erosion of natural deposits.
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Radioactive
Contaminants
Year
Sampled
Lowest
Level
Highest
Level MCLG MCL Units Violation Likely Source of Contamination
Alpha emitters 2022 2.1 2.1 0 15 pCi/L N Erosion of natural deposits.
Radium 228 2022 0.5 0.5 0 5 pCi/L N Erosion of natural deposits.
Turbidity Year
Sampled
Lowest
Level
Highest
Level MCLG MCL Units Violation Likely Source of Contamination
Turbidity 2022 0.3 0.3 0 0.3 NTU N Soil runoff.

In addition to the sampling outlined in the table above, we have also sampled for additional
Microbiological Contaminants, Inorganic Contaminants, Synthetic Organic Contaminants,
Volatile Organic Contaminants, Radiological Contaminants, Pesticides, Unregulated Organic
Chemicals and Unregulated Pesticides. These additional chemicals were not detected. If you
would like a list of the specific Contaminants, Pesticides, and Organic Chemicals that we
sampled for, please contact us at [phone] or [e-mail].

The sources of drinking water for our system are 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.

Contaminants that may be present in source water include:

Microbial contaminants such as viruses and bacteria, which 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 storm water 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 agriculture,
urban storm water 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 storm water runoff, and septic systems.

Radioactive contaminants, which can be naturally-occurring or be the result of oil and gas
production and mining activities.

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
water poses a health risk. More information about contaminants and potential health effects can
be obtained by calling the EPA’s Safe Drinking Water Hotline at [phone].

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In order to ensure that tap water is safe to drink, EPA prescribes regulations which limit the
amount of certain contaminants in water provided by public water systems. FDA regulations
establish limits for contaminants in bottled water which must provide the same protection for
public health. 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 microbial
contaminants are 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. Winchester Hills 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.

The Winchester Hills Water Company works 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.

For a copy of this report or for questions, please call our office (435-673-9403) or email us at
[e-mail]. It is also found on our web site at www.winchesterhills.com.