DDW-2024-009758

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The Annual Division of Drinking Water
Quality Report 2023
Leeds Domestic Water Users Association (LDWA)
System 27010

It is LDWA’s mission to consistently provide safe, dependable drinking water, the supply,
continually improve water treatment processes, and protect our water resources in compliance
with the Division of Drinking Water, Department of Environmental Quality (DDW/DEQ),
Division of Water Rights (DWR), ICC Plumbing Codes, and other state & federal regulations.
***
LDWA sources are from one well and one spring. As of December 31, 2023, LDWA served 386
active water connections within its water distribution system.

The Drinking Water Source Protection Plan (DWSP) for LDWA is available for your review and
posted at www.LDWAcorp.org. It contains information about source protection zones, potential
contamination sources, management strategies to protect our drinking water, and have been
determined to have a low level of susceptibility from potential contamination.

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P ROTECT YOUR HOME’S WATER QUALITY: PREVENT CROSS CONNECTIONS & BACK FLOW. It is vital to
understand that all connections to LDWA culinary water sources must be properly protected in and
around your home. Residents and property are responsible for the installation of approved backflow
devices to prevent cross connection backflow contamination drinking water at home. Unapproved and/or
improper piping changes or connections can adversely affect not only the availability, but also the quality
of your water at your home.

A cross connection can result with polluted water or chemicals that will mingle into your water supply
system when not properly protected. This not only compromises the water quality but can also affect your
health.

W HAT YOU CAN DO. Do not make or allow improper connections at your homes. Even an 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. We
urge you to learn more about protecting your family and pets by protecting the quality of our water.
Please visit l dwacorp.org/cross-connections-back-flow-prevention.

LDWA routinely monitors for constituents in our drinking water in accordance with federal and
state regulations and requirements. The following table shows the results for the yearend
December 31st, 2023.

Note that all drinking water, including bottled drinking water, can be reasonably expected to
contain at least small amounts of some constituents, and it is wise to know that presence of these
constituents does not necessarily pose a health risk.
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D EFINITIONS OF TERMS, ABBREVIATIONS USED IN THE LDWA TEST REPORT TABLE

(AL) Action Level. The concentration of a contaminant which, if exceeded, triggers treatment or
other requirements which a water system must follow.

(MCL) Maximum Contaminant Level. 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.

(MCLG), Maximum Contaminant Level Goal. 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.

(mg/l), milligrams per liter. One part per million corresponds to one minute in two years or a
single penny in $10,000.

(ND), Non-Detects. 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.

(NUT), Nephelometric Turbidity Unit. Nephelometric turbidity unit is a measure of the clarity of
water. Turbidity in excess of 5 NTU is just noticeable to the average person.

(nanograms/l), nanograms per liter. One part per trillion corresponds to one minute in 2,000,000
years, or a single penny in $10,000,000,000.

(ppb), parts per billion. One part per billion corresponds to one minute in 2,000 years, or a single
penny in $10,000,000.

(ppm), parts per million. One part per million corresponds to one minute in two years or a single
penny in $10,000.

(ppq), parts per quadrillion. One part per quadrillion corresponds to one minute in
2,000,000,000 years or a single penny in $10,000,000,000,000.

(ppt), parts per trillion. One part per trillion corresponds to one minute in 2,000,000 years, or a
single penny in $10,000,000,000.

(ug/l), micrograms per liter. One part per billion corresponds to one minute in 2,000 years, or a
single penny in $10,000,000.

(picograms/l), picograms per liter. One part per quadrillion corresponds to one minute in
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2,000,000,000 years or a single penny in $10,000,000,000,000.

(pCi/L), Picocuries per liter. Picocuries per liter is a measure of the radioactivity in water.

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

**DATE: depending on the element sampled and prior test results, sampling time frames range
once each year to once every six (6) years.

Microbiological Contaminants
Violation Level Detected Unit Measurement
MCLG MCL Year Sampled Likely Source of Contamination
Coliform Bacteria NO Not
Detecte
d
N/A 0 Presence
of
coliform
bacteria
in 5% of
monthly
samples
2023 If existent: Naturally present in
the environment
Turbidity
for Ground Water
NO 0.05 -
0.55
NTU N/A 5.00 2011 Soil runoff

Inorganic Contaminants
Violation Level Detected Unit Measurement
MCLG MCL Year Sampled Likely Source of Contamination
Arsenic NO 1,400-
2,900
ppb 0 10,000 2011 Erosion of natural deposits;
runoff from orchards; runoff
from glass and electronics
production wastes
Barium NO 10 - 71 ppb 2,000 2,000 2011 Discharge of drilling wastes;
discharge from metal refineries;
erosion of natural
Deposits.
Copper
a. . 90% results
b. # of sites exceeding AL
NO

a. 122

b. NON
E
ppm 1,300 AL =
1,300
2023 Erosion of natural deposits;
Leaching from wood
preservatives; Corrosion of
household plumbing systems.
Fluoride
a. Source #1

b. Source #2
NO
a. Not
Detec
ted
300
ppb 4,000 4,000 2011 Erosion of natural deposits;
water additive which promotes
strong teeth; discharge from
fertilizer and
aluminum factories.
Nitrate (as Nitrogen) NO 0.285 ppm 10 10 2023 Runoff from fertilizer use;
Leaching from septic tanks,
sewage; Erosion of natural
deposits.

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Lead
a. . 90% results
b. # of sites exceeding AL
NO

a. 5

b. NON
E
ppb 0 AL = 15 2023 Corrosion of household plumbing
systems, erosion of natural
deposits.
Selenium NO ND -
2,300
ppt 50,000 50,000 2011 Discharge from petroleum and
metal refineries; erosion of
natural deposits. Discharge from
mines.
Sodium NO 4,600 -
12,600
ppm None
set by
EPA
None
set by
EPA
2011 Erosion of natural deposits;
discharge from refineries and
factories; runoff from
landfills.
Sulfate NO 4 – 57 ppm 1,000 1,000 2011 Erosion of natural deposits;
discharge from refineries and
factories; runoff from landfills,
runoff from cropland.
Total Dissolved
Solids (TDS)
No 161-321 ppm 2,000 2,000 2011 Erosion of natural deposits

Radioactive Contaminants
Violation Level Detected Unit Measurement
MCLG MCL Year Sampled Likely Source of Contamination
Alpha emitters NO 2.1-4.9 pCi/L 0 15 2022 Erosion of natural deposits.
Radium 228 NO -0.28 pCi/L 0 5 2022 Erosion of natural deposits.

The table indicates LDWA’s system had no violations, and our drinking water exceeds federal and
state regulations. The constituents that are identified are far less than the established EPA limits
for safe drinking water.

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.
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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.
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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. Leeds Domestic Water 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.

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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 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 (800-
426-4791).

LDWA staff and volunteer Board members work around the clock to provide safe, quality drinking
water to every tap. We ask all shareholders to help protect our water sources, which are the
heart of our community, our way of life and our children’s future.

If you have any questions about this report or concerning your water utility, please contact,
LDWA at [e-mail] or visit our website at www.LDWAcorp.org.