DDW-2024-009406

Annual Drinking Water Quality ReportSilver Lake CompanyBrighton, Utah2023We'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 has been determined to be from groundwater source. Our water source isthe Great Western Mine TunnelThe Drinking Water Source Protection Plan for Silver Lake Company 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 high level of susceptibility from potential contamination from sources such as vandalism, recreational land users, and contaminants from commercial facilities and
from vehicles. 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 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 contact the Silver Lake Company office
at 435-714-0494. 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. You will receive
information about the annual meeting by mail. Silver Lake Companyroutinely 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.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. 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 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
Total Coliform Bacteria
N
ND
N/A
0
Presence of coliform bacteria in 5% of monthly samples
2023
Naturally present in the environment
Fecal coliform andE.coli

N
ND
N/A
0
If a routine sample and repeat sample are total coliform positive, and one is also fecal coliform or E. coli positive
2023
Human and animal fecal waste
Inorganic Contaminants
Antimony
N
.07
ppb
6
6
2019
Discharge from petroleum refineries; fire retardants; ceramics; electronics; solder
Copper
90% results
# of sites that exceed the AL
N
a. .486
b. 0
ppm
1.3
AL=1.3
2022
Erosion of natural deposits; Leaching from wood preservatives; Corrosion of household plumbing systems
Fluoride
N
.2
ppm
4
4
2019
Erosion of natural deposits; water additive which promotes strong teeth; discharge from fertilizer and aluminum factories
Lead
90% results
# of sites that exceed the AL
N
a. 0
b.0
ppb
0
AL=15
2022
Corrosion of household plumbing systems, erosion of natural depositsNitrate (as Nitrogen)
N
ND
ppm
10
10
2023
Runoff from fertilizer use; leaching from septic tanks, sewage; erosion of natural deposits
Inorganic Contaminants:
Antimony. Some people who drink water containing antimony well in excess of the MCL over many years could experience increases in blood cholesterol and decreases in blood sugar.
Copper. Copper is an essential nutrient, but some people who drink water containing copper in excess of the action level over a relatively short amount of time could experience gastrointestinal
distress. Some people who drink water containing copper in excess of the action level over many years could suffer liver or kidney damage. People with Wilson's disease should consult
their personal doctor.
Fluoride. Some people who drink water containing fluoride in excess of the MCL over many years could get bone disease, including pain and tenderness of the bones. Children may get mottled
teeth.

Lead. 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.
Nitrate. 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.
Nitrate in drinking water at levels above 10 ppm is a health risk for infants of less than six months of age. High nitrate levels in drinking water can cause blue baby syndrome. Nitrate
levels may rise quickly for short periods of time because of rainfall or agricultural activity. If you are caring for an infant, you should ask advice from your health care provider.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. Silver Lake Company is responsible for providing high quality drinking waterbut 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. SIGNIFICANT PHYSICAL DEFICIENCY (SIG)Quote SIG from IPSSurvey DateAction PlanTGR7 System is required to have two sources with more
than 100 connections09/19/2022The State of Utah Division of Drinking Water has issued us a temporary exception for not having two sources with more than 100 connectionsAll sources of
drinking water are subject to potential contamination by constituents that are naturally occurring or manmade.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.Total Coliform: 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.Nitrates: 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: 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. Immunocompromised 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 [phone]).We at Silver Lake Companywork 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. Silver Lake Company
8020 S. Brighton Loop Rd.
Brighton, UT. 84121
June 30, 2024
Brandi Smith
CCR Compliance
Division of Drinking Water
P.O. Box 144830
Salt Lake City, Utah 84114-4830
Dear Ms. Smith:
Subject: Consumer Confidence Report for Silver Lake Company system 18046
Enclosed is a copy of Silver Lake Company 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:
For systems with population of 500 or smaller (select method below):
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Putting a notice of the availability of the report on our water bills, then mailing a report to those who request it.
Making copies of the report available at the water office.
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We have received 0 returned emails (bounced-back).We have notified those customers by either calling them or sending a notice to the billing address.
If you have any questions, please contact me at [phone].
Sincerely,Steve McIntoshWater MasterSilver Lake Company