DDW-2024-008254

Annual Drinking Water Quality ReportMountain Valley Water 2023We'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 sources. Our water source is a Well called the Mountain Valley Well. The Drinking Water Source Protection Plan for Mountain Valley Water 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 alowlevel of susceptibility from potential contamination from sources such as septic tanks, roads, residential areas, industrial areas.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.If you
have any questions about this report or concerning your water utility, please contactTerry Powell at 801-520-5131. 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 last Monday of the Month, Contact Terry for more information.Mountain Valley Waterroutinely
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 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.
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
E.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
Turbidity
for Ground Water
N
1.75
NTU
N/A
0.3
2022
Soil runoff
Inorganic Contaminants
Arsenic
N
1.3
Ppb
0
10
2022
Erosion of natural deposits; runoff from orchards; runoff from glass and electronics production wastes
Barium
N
0.097
ppm
2
2
2022
Discharge of drilling wastes; discharge from metal refineries; erosion of natural deposits
Copper
90% results
# of sites that exceed the AL
N
a.0.031
b.0
ppm
1.3
1.3
2021
Corrosion of household plumbing systems; erosion of natural deposits
Fluoride
N
0.222
ppm
4
4
2022
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. 2.7
b.0
Ppb
0
15

2021
Corrosion of household plumbing systems, erosion of natural depositsNitrate (as Nitrogen)
N
0.351
Ppm
10
10
2023
Runoff from fertilizer use; leaching from septic tanks, sewage; erosion of natural deposits
Selenium
N
0.7
Ppb
50
50
2022
Discharge from petroleum and metal refineries; erosion of natural deposits; discharge from mines
Sodium
N
27.012
Ppm
500
None set by EPA
2022
Erosion of natural deposits; discharge from refineries and factories; runoff from landfills.
Sulfate
N
43.621
Ppm
1000
1000
2022
Erosion of natural deposits; discharge from refineries and factories; runoff from landfills, runoff from cropland
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
376
ppm
2000
2000
2022
Erosion of natural deposits
If TDS is greater than 1000 ppm the supplier shall deomonstrate 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.
Radioactive Contaminants
Alpha emitters
N
1.4
Pci/l
0
15
2022
Erosion of natural deposits
Radium 228
N
0.19
pCi/l
0
5

2022
Erosion of natural deposits
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. Mountain Valley 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/leadAs 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 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.
March 18, 2024
Brandi Smith
CCR Compliance
Division of Drinking Water
P.O. Box 144830
Salt Lake City, Utah 84114-4830
Dear Ms. Brandi Smith:
Subject: Consumer Confidence Report for Mountain Valley UTAH18162
Enclosed is a copy of Mountain Valley 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:
Hand delivering it directly to each customer.
Posting notice on the school bulletin board.
If you have any further questions please let me know.
Sincerely,
Terry Powell
Mountain Valley Water