DDW-2024-014104

WATER QUALITY REPORT 2020
WHAT’S INSIDE:
• Test Results
• What is Cross Connection?
• Source Protection
• How You Can Help
We’re pleased to present to you this years 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. This report shows our water quality and what it means to you our customer.
We want you to understand the efforts we make to continually im-prove the water treatment process and protect our water resources. This report shows our water quality and what it means to you our customer.
Lead
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 com-munity as a result of materials used in your home’s plumbing.
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 ser-vice lines and home plumbing. Summit Water Distribution Company is responsible for providing high quality drinking water, but cannot con-trol the variety of materials used in plumbing components. When your water has been sitting for several hours, you can minimize the poten-tial 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. Informa-tion on lead in drinking water, testing methods, and steps you can take to minimize exposure is available from the safe Drinking Water Hotline [phone]) or at http://www.epa.gov/safewater/lead.
Cross ConnectionThere 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 prop-erly protected. This not only compromises the water quality but can also affect your health. So, what can you do? State law requires ir-rigation and fire suppression systems to be equipped with backflow prevention devices. These devices are required to be tested annually by a certified backflow tester. Do not make or allow improper connec-tions 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.
Source ProtectionThe Drinking Water Source Protection Plan from Summit Water Distribution Com-pany 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 susceptibil-ity from potential contamination. We have also developed management strategies to further protect our sources from contamination. Please contact us if you have ques-
tions or concerns about our source protection plan.
Potential Health RisksAll 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, includ-ing 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 poten-tial health effects can be obtained by calling the Environmental Protection Agency’s Safe Drinking Water Hotline at 1-800-426-4791.
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]).
Water SourceWe are comitted to ensuring the quality of your water. Our water sources have been determined to be from groundwater and surface water sources. Our water sources are Rest Stop Well, Hi-Ute Well, Jeremy Ranch Well #4, White Pine Well, Church Well, Storage Well, Old F-7 Well, U224 Well, Upper Spring Creek Spring, New F-7 Well, and Hi-Ute Well Repl-1. We also purchase water from Mountain Regional SSD
(#22137) and Park City Watyer System (#22011).
MCLsMCLs 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.
JOIN US 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 the first Thursday of each month at 11:00 AM. If you plan to
attend please call the office in advance to confirm the details.

CUSTOMER SERVICESummit Water Distribution Company employees are dedicated 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.
QUESTIONSIf you have any questions about this report or concerns about your water utility,
please contact us [phone]
Summit Water
8506 Bluebird Lane
Park City UT 84098
www.summitwater.us
Contaminant ViolationY/N Level DetectedND/Low-High Unit Measurement MCLG MCL Year Sampled Likely Source of Contamination
Microbiological Contaminants
Total Coliform Bacteria N ND N/A 0 Presence of coliform bacteria in 5% of monthly samples
2020 Naturally present in the environment
Fecal coliform and E.coli N N/A N/A 0 If a routine sample and repeat sample are total coliform positive, and one is also fecal coliform or E. coli positive
2020 Human and animal fecal waste
Turbidity for Ground Water N 0.09-2.1 NTU 0 5.0 2019 Soil runoff
Turbidity for Surface Water N 0.076-2.1 NTU N/A 0.3 in at least 95% of the samples and must never exceed 5.0
2020 Soil runoff (highest single measurement & the lowest monthly percentage of samples meeting the turbidity limits)
Inorganic Contaminants
Antimony N Nd-0.7 ppb 6 6 2020 Substances that occur naturally in drinking water
Arsenic N ND-2.5 ppb 0 10 2020 Erosion of natural deposits; runoff from orchards; runoff from glass and electronics production wastes
Asbestos N 0.01-0.282 MFL 7 7 2020 Decay of asbestos cement water mains; erosion of natural deposits
Barium N 0.01-0.282 ppb 2000 2000 2020 Discharge of drilling wastes; discharge from metal refineries; erosion of natural deposits
Coppera. 90% resultsb.# of sites that exceed the AL N a.0.305 b.0 ppm 1.3 AL=1.3 2020 Corrosion of household plumbing systems; erosion of natural deposits
Cyanide N ND-2.5 ppb 200 200 2020 Discharge from steel/metal factories; discharge from plastic and fertilizer factories
Fluoride N ND-0.27 ppm 4 4 2020 Erosion of natural deposits; water additive which promotes strong teeth; discharge from fertilizer and aluminum factories
Leada.90% resultsb.# of sites that exceed the AL
N a. 5.1b. 2 ppb 15 AL=15 2020 Corrosion of household plumbing systems, erosion of natural deposits
Nitrate (as Nitrogen)N Nd-1.6 ppm 10 10 2020 Runoff from fertilizer use; leaching from septic tanks, sewage; erosion of natural deposits
Selenium N ND-1.6 ppb 50 50 2020 Discharge from petroleum and metal refineries; erosion of natural deposits; discharge from mines
Sodium N 5.2-102 ppm 500 None 2020 Erosion of natural deposits; discharge from refineries and factories; runoff from landfills.
Sulfate N 4.143-210 ppm 1000 1000 2020 Erosion of natural deposits; discharge from refineries and factories; runoff from landfills, runoff from cropland
TDS (Total Dissolved solids)N 180-1350 ppm 2000 2000 2020 Erosion of natural deposits
Disinfection By-Products
TTHM
[Total trihalomethanes]
8.4-9.2 5.5-11.9 ppb 0 80 2020 By-product of drinking water disinfection
Haloacetic Acids N 6.7-7.9 ppb 0 60 2020 By-product of drinking water disinfection
Radioactive Contaminants
Alpha emitters N ND-2.8 pCi/l 0 15 2020 Erosion of natural deposits
Gross Beta N 1-8.3 pCi/l 0 50 2019 Erosion of natural deposits
Radium 228 N ND-2.1 pCi/l 0 5 2020 Erosion of natural deposits
Organic Contaminants
Bromodichlomethane N ND-1.8 ppb 0 80 2020 Byproduct of water chlorination
Chloroform N ND-12 ppb 0 80 2020 Byproduct of water chlorination
Test
Results
Summit Water Distribution Company 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, 2020. 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 pres-ence of these constituents does not necessarily pose a health risk.

In the test reults 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:
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 “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.
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 contaminants 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.
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.
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 (ng/l) - One part per
trillion corresponds to one minute in 2,000,000 years, or a single
penny in $10,000,000,000.
Picocuries per liter (pCi/L) - Picocuries per liter is a measure of the
radioactivity in water.
Treatment Technique (TT) - A treatment technique is a required
process intended to reduce the level of a contaminant in drinking
water.
Date- Because of required sampling time frames, i.e., yearly, 3
years, 4 years and 6 years, sampling dates may seem outdated.
Table Definitions:We constantly monitor for various constituents in the water supply
to meet all regulatory requirements. In April and May of 2020 we failed to take all the required additional coliform bacteria tests. Re-peat testing is used to ensure that the public is provided with safe
drinking water after a routine sample tests positive for total coli-forms. For this reason, we were required to take repeat samples.
This violation does not necessarily pose a health risk. We have re-viewed why we failed to take our repeat coliform bacteria samples and have taken steps to ensure that it will not happen again.
Water Conservation:
Water conservation measures are an important first step in pro-tecting our water supply. Such measures not only save the supply of our source water, but you can also save money by reducing
your water bill. Here are a few suggestions:
Conservation in your home: • Take shorter showers• Run the dishwasher only when full
• Soak dishes before washing• Fix leaking faucets, pipes, toilets, etc.
• Wash full loads of laundry • Replace old fixtures• Do not use the toilet for trash disposal
• Install water saving devices
Conserve Outdoors: • Water the lawn and garden in the early morning or late eve-ning
• Use mulch around plants and shrubs • Repair leaks in faucets and hoses
• Use water-saving nozzles• Use water from a bucket to wash your car and save the hose for rinsing
Summit Water Distribution Company