DDW-2025-003236

This report is a snapshot of water quality for 2024.Included in this report are details about where your water comes from, what it contains, what is being done to protect your water
sources and how it compares to EPA and State of Utah standards. Weber Basin Water Conservancy District supplies all the culinary water used by Washington Terrace City through a contract
between the City and the District. This is a high-quality drinking water that meets or exceeds all state and federal regulations.
Where Does Our Water Come From?
Surface water and groundwater
The Weber Basin Water Conservancy District’s drinking water supply comes from the Weber River and from several creeks along the Wasatch Front. Groundwater, primarily from the Delta
Aquifer, is used to supplement surface water sources when needed.
How drinking water gets to you
Although a portion of drinking water originates as groundwater and is extracted from deep wells, most of our drinking water supply begins as surface water from the headwaters of the
Weber River. Water is directed into a canal by a diversion dam. The water flows through this canal and enters two large aqueducts. Several creeks along the Wasatch Front can feed
into these aqueducts. The water supplied to Washington Terrace City is subsequently piped to the District’s Central Water Treatment Plant. After complete treatment, water is delivered
to Washington Terrace City for final distribution to individual users.
Water storage is necessary
Storagereservoirs on the Weber and Ogden River systems play a critical role in ensuring an adequate and constant water supply to all water users throughout the year. Dams have been built
to store water during the annual spring runoff of winter snow. Without this storage, those of us living downstream along the rivers and streams would experience extreme high flows during
the runoff periods and extreme low flows in the late summer months. There would be much more flooding due to unregulated flows in the river during the spring, and there would be insufficient
water to provide for drinking and irrigation needs during the late summer and fall.
The effects of multi-year drought periods have been felt throughout the country during the past decades. Reservoirs also play a vital role in reducing the effects of drought. With the
available water storage projects, these effects have been greatly minimized, whereas, without the reservoirs the drought periods could have been devastating.
Storage reservoirs also have other useful functions. They generate hydro-electric power, contribute to the economy through tourism, provide wildlife habitat and recreational activities,
and ensure adequate water for agricultural irrigation, industry, commercial uses, and all residential uses.
Water Source Protection
Source Protection Plan
The District has completed a Drinking Water Source Protection Plan for all of its surface public drinking water sources. The Drinking Water Source Protection program includes identification
of the area from which the drinking water source receives water, an assessment of the potential contamination threats to the source within this area, and management programs to help
control both existing and future potential sources of contamination.
Wellhead Protection Plans
A Wellhead Protection Plan has been written and implemented for all of the District’s groundwater sources. These plans define the protection zones for each of the wells, list the potential
contamination sources within the zones, and identify what safeguards are in place to protect the aquifer (natural underground water storage formations made of silts, sands, gravels,
and cobbles) from the contamination sources. The wellhead protection plans also consist of steps to further monitor the contamination sources and educate those businesses or industries
that may become sources.
Copies of these plans may be obtained from the Weber Basin Water Conservancy District office for a nominal fee. The State Division of Drinking Water also has a copy of each protection
plan on file.
You can help prevent water pollution
The water you drink comes from reservoirs oris pumped from deep wells. Residents can help prevent water pollution by employing best management practices when storing, using, and discarding
fertilizers, pesticides, and other household hazardous wastes. Information on best management practices can be found at http://www.drinkingwater.utah.gov/source/protection/intro.htm.
This Division of Drinking Water web site also has links to Fact Sheets describing ways to minimize the impact of potential contamination sources on our water resources.
Please don’t spoil the water supply for yourself and everyone else! Dispose of paint, used motor oil, and other hazardous chemicals in a proper and safe manner. You can log onto the
Washington Terrace City web site at www.washingtonterracecity.com and go to Departments, Public Works, and Waste Disposal to find out about proper waste disposal in the Weber County
area.
Preventing Cross Connections
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 or visit the City’s website www.washingtonterracecity.comfor further information about ways you can help.
Water ConservationWith ever increasing growth and the nature of the regional climate, there is no question that we will encounter more drought years. Future drought cycles will have
an even greater effect than previous drought because of the increased demands on water systems. Conservation must become a way of life througheach of us incorporating better water use
practices and valuing this precious resource more than ever. Conservation alone will not meet future water needs and the Weber Basin Water Conservancy District will continue to develop
water supplies. The City and District will continue to maintain the current infrastructure, but future water projects are costly and limited. Your part in conserving water today will
help delay these costly future projects while maintaining your current lifestyle. If we each save a little, we all save a lot!

ValueWhat will $2.00 buy? About three-fifths gallon of gas, a smallfrench-fry, less than three postage stamps, a 16 ounce container of bottled water, or 350 gallons of tap water! Clean,
safe, convenient tap water is a great deal that few of us appreciate.
Possible Contaminants in the WaterDrinking 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 Environmental Protection
Agency's Safe Drinking Water Hotline [phone]).The sources of our drinking water include rivers, streams, reservoirs, and 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. Below are some of the contaminants that may be present in the source water.

Inorganic contaminants, such as salts and metals, can be naturally occurring or result from urban storm water runoff, industrial, or domestic wastewater discharges, oil and gas production,
mining, or farming.
Organic chemical contaminants, including synthetic and volatile organic chemicals, are by-products of industrial processes and petroleum production, and can also come from gas stations,
urban storm water runoff, and septic systems.
Pesticides and herbicides may come from a variety of sources such as agriculture, urban storm water runoff, and residential uses.Radioactive contaminants can be naturally occurring or
the result of oil and gas production and mining activities.
Microbial contaminants, such as viruses and bacteria, may come from sewage treatment plants, septic systems, agricultural livestock operations, and wildlife. 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. Food and Drug Administration (FDA) regulations
establish limits for contaminants in bottled water which must provide the same protection for public health.
Special Precautions to Consider
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/Centers for Disease Control (CDC) guidelines on appropriate means to lessen the risk of infections by Cryptosporidium
and other microbial contaminants are available from the Safe Drinking Water Hotline [phone]).
Contact person:If you have any questions concerning the content of this report please contact Denzil Remington, Washington Terrace City Assistant Public Works Director at 801-393-8681.
Water Web Sites:www.weberbasin.com; www.drinkingwater.utah.gov; www.epa.gov/safewater; www.slowtheflow.org;
www.conservewater.utah.gov; www.ConservationGardenPark.org

Water Quality Inside your Home
Water Quality Information
The tables on the following pages list all the regulated and unregulated drinking water contaminants that were detected during this and former sampling years. Unregulated contaminant
monitoring helps EPA to determine where certain contaminants occur and whether it needs to regulate those contaminants.
Some of the data, though representative, are more than one year old. Because the concentrations of certain contaminants do not change frequently, the state allows less frequent monitoring.
Note that the presence of contaminants in the water does not necessarily indicate that the water poses a health risk.
The detected contaminants tables show sampling results for both Weber Basin Water Conservancy District and Washington Terrace City.
Important drinking water definitions:
Detected Contaminant - Any contaminant detected at or above its minimum detection limit (MDL).
Minimum Detection Limit - The lowest level at which a particular contaminant is detected with a specified degree of certainty.
MCL - Maximum Contaminant Level: 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 level of a contaminant in drinking water below which there is no known or expected risk to health. MCLGs allow an extra margin of safety.
NA - Not applicable - there is no Federal or State MCL and/or MCLG.
ND - Not detected.
NTU - Nephelometric Turbidity Unit – a measure of the cloudiness of the water.
ppm - parts per million, or milligrams per liter (mg/l).
ppb - parts per billion, or micrograms per liter (µg/l).
ppt - parts per trillion, or nanograms per liter (ng/l).
pCi/L - picocuries per liter (a measure of radioactivity).
DETECTED REGULATED INORGANIC CONTAMINANTS
Weber Basin Water Conservancy District - Samples Collected from 2010 through 2019
Range
Contaminant (units)
Average
Low
High
MCL
MCLG
Typical Source
Arsenic (ppb)
0.800
0.600
1.2
10
NA
Erosion of natural deposits; orchard runoff
Barium (ppm)
0.117
0.033
0.267
2

2
Erosion of natural deposits; drilling wastes
Fluoride (ppm)3
0.100
ND
0.200
4
4
Erosion of natural deposits
Nitrate (ppm)
1.40
0.988
1.81
10
10
Erosion of natural deposits; fertilizer runoff
Selenium (ppb)
1.10
ND
2.10
50
50
Erosion of natural deposits; mine discharge
Sodium (ppm)
16.5
13.4
19.6
NA1
NA
Erosion of natural deposits
Sulfate (ppm)
11.9
5.0
25.0
1,0002
NA
Erosion of natural deposits
Total Dissolved Solids (ppm)
214
136
315
2,0002
NA
Erosion of natural deposits
Washington Terrace City - Samples Collected in 20215
Average/90
Range
Contaminant (units)
Percentile
Low
High
MCL
MCLG
Typical Source
Arsenic (ppb)
ND
ND
ND
10
NA

Erosion of natural deposits; orchard runoff
Washington Terrace City - Lead and Copper Samples Collected in 20224
Average/90
Range
Contaminant (units)
Percentile
Low
High
MCL
MCLG
Typical Source
Lead (ppb)
3.2
ND
4.6
15
NA
Corrosion of household plumbing
Copper (ppb)
46.8
267
356
1,300
NA
Corrosion of household 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 service lines and home plumbing. Washington Terrace 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.
1) The State of Utah requires monitoring for sodium even though no MCL has been established.
2) The MCL for sulfate and total dissolved solids is established by the State of Utah.
3) This value represents naturally occurring fluoride concentrations.
4) Sampled at 20 locations every three years.
5) Sampled every nine years at one location.
DETECTED REGULATED ORGANIC CONTAMINANTS
Weber Basin Water Conservancy District - Samples Collected in 2024
Range2
Contaminant (units)
LRAA1
Low
High
MCL
MCLG
Typical Source
Total Trihalomethanes (ppb)
36.5
16.3
51.9
80
NA
By-product of drinking water chlorination
Haloacetic Acids (ppb)
23.0
7.6
50.3
60
NA
By-product of drinking water chlorination
Washington Terrace City - Samples Collected in 2024

Range2
Contaminant (units)
LRAA1
Low
High
MCL
MCLG
Typical Source
Total Trihalomethanes (ppb)
49
20
108
80
NA
By-product of drinking water chlorination
Haloacetic Acids (ppb)
20.9
6.3
44.4
60
NA
By-product of drinking water chlorination
1) This value represents the highest running annual average for year(s).
2) Values in the Range columns are actual concentrations measured in ppb and reflect the range of detected levels.
3) Some people who drink water containing trihalomethanes in excess of the MCL over many years may experience problems with their liver, kidneys, or central nervous systems, and may
have an increased risk of getting cancer.
DETECTED REGULATED RADIOLOGIC CHEMICALS
Weber Basin Water Conservancy District - Samples Collected from 2016 through 2024
Range
Contaminant (units)
Average
Low
High
MCL
MCLG
Typical Source
Gross Alpha (pCi/L)
0.843
ND
2.6
15
0
Erosion of natural deposits
Gross Beta (pCi/L)
2.41
0.05
4.4
50
0
Decay of natural and man-made deposits
Combined Radium (pCi/L)
0.62
0.34
0.98
5
0
Erosion of natural deposits
REGULATED MICROBIOLOGICAL CONTAMINANTS1
Weber Basin Water Conservancy District - This data comes from continuous monitoring in 2024
Contaminant (units)

Percentage
High
MCL
MCLG
Violation
Typical Source
Turbidity Weber South(NTU)
100
0.04
0.3
0
No
Soil Runoff
Turbidity Davis North(NTU)
100
0.05
0.3
0
No
Soil Runoff
1) Coliforms are bacteria that are naturally present in the environment and are used as an indicator that other, potentially
harmful, bacteria may be present. Division of Drinking Water regulations require the City to sample 10 different sites in the
City each month and test for total coliform and E. coli. If one sample is positive for total coliforms, a violation of the MCL has
occurred. No coliforms were detected in any water sampled in Washington Terrace City during 2021.
The Weber Basin Water Conservancy District is required to collect and test 120 samples a month for total coliform and E. coli. If more than 5% of the samples test positive for
Total Coliform Bacteria, they are out of compliance. That has never occurred in their system since the rule was established.
DETECTED UNREGULATED ORGANIC CONTAMINANTS
Washington Terrace City - Samples Collected in 2024
Range
Contaminant (units)
Average
Low
High
MCL
MCLG
Typical Source
Bromodichloromethane (ppb)
9.2
6.1
12
NA
NA
By-product of drinking water chlorination
Bromoform (ppb)
0.2
ND
1.8
NA
NA
By-product of drinking water chlorination
Chloroform (ppb)
36.9
8.0
94.1
NA
NA
By-product of drinking water chlorination
Dibromochloromethane (ppb)
2.7
1.6

4.2
NA
NA
By-product of drinking water chlorination
Dibromoacetic Acid (ppb)
0.1
ND
1.1
NA
NA
By-product of drinking water chlorination
Dichloroacetic Acid (ppb)
7.8
2.2
17.3
NA
NA
By-product of drinking water chlorination
Monobromoacetic Acid (ppb)
ND
ND
ND
NA
NA
By-product of drinking water chlorination
Monochloroacetic Acid (pp)
0.3
ND
2.0
NA
NA
By-product of drinking water chlorination
Trichloroacetic Acid (ppb)
12.6
3.0
25.1
NA
NA
By-product of drinking water chlorination
General Information on the Tested Unregulated Substances
Unregulated contaminants are those for which EPA has not established drinking water standards. The purpose of unregulated contaminant monitoring is to assist EPA in determining the occurrence
of unregulated contaminants in drinking water and whether future regulation is warranted.
PFAS
In early 2023, the EPA proposed Drinking Water regulatory standards for a group of chemicals called per-and polyfluoroalkyl substances (PFAS). At the time of this publication, those
standards have not been finalized. PFAS are a large family of synthetic chemicals that have been used in a wide variety of consumer products and industrial processes since the mid-20th
century. Six PFAS are proposed to be regulated: 
perfluorooctanoic acid (PFOA)
perfluorooctane sulfonic acid (PFOS)
perfluorononanoic acid (PFNA)
hexafluoropropylene oxide dimer acid (HFPO-DA, commonly known as GenX chemicals)
perfluorohexane sulfonic acid (PFHxS)
perfluorobutane sulfonic acid (PFBS)
Evidence shows that continued exposure above specific levels to these PFAS substances may lead to adverse health. 
The State of Utah’s website has additional information on steps you can take to reduce PFAS exposure at pfas.utah.gov. 
Lithium
Lithium is a naturally occurring metal and may be found at higher concentrations in certain parts of the country, particularly in groundwater sources in arid locations in the Western
U.S.
Lithium has been used in pharmaceuticals for a long time to treat certain medical conditions. Despite the abundance of information on patients receiving lithium at therapeutic levels,
there has historically been limited information available to evaluate health risks in people at the levels of exposure associated with typical drinking water consumption, which are much
lower than patients receiving lithium as a drug.

At present, EPA cannot confidently estimate the risk for people with lithium exposures from drinking water between 10 ppb and a much higher concentration equivalent to a therapeutic
dose. The science on lithium’s effects on human health, and at what levels, is still evolving.
If you have questions about this information, you can contact Denzil Remington at [e-mail] or 801-393-8681 from Washington Terrace City. You can also contact DDW
at 801-536-4200 or [e-mail].
UCMR5 Collection Data Sample Point EP1
Collection Dates
Test Method
Analyte
Range
Average
3/18/2024 to 12/15/2024
EPA 200.7
lithium
<MRL to 11
5.225
3/18/2024 to 12/15/2024
EPA 533
11Cl-PF3OUdS
< MRL
< MRL
3/18/2024 to 12/15/2024
EPA 533
4:2 FTS
< MRL
< MRL
3/18/2024 to 12/15/2024
EPA 533
6:2 FTS
< MRL
< MRL
3/18/2024 to 12/15/2024
EPA 533
8:2 FTS
< MRL
< MRL
3/18/2024 to 12/15/2024
EPA 533
9Cl-PF3ONS
< MRL
< MRL
3/18/2024 to 12/15/2024
EPA 533
ADONA
< MRL
< MRL
3/18/2024 to 12/15/2024
EPA 533
HFPO-DA
< MRL
< MRL
3/18/2024 to 12/15/2024
EPA 533
NFDHA
< MRL
< MRL
3/18/2024 to 12/15/2024
EPA 533
PFBA
< MRL
< MRL

3/18/2024 to 12/15/2024
EPA 533
PFBS
< MRL
< MRL
3/18/2024 to 12/15/2024
EPA 533
PFDA
< MRL
< MRL
3/18/2024 to 12/15/2024
EPA 533
PFDoA
< MRL
< MRL
3/18/2024 to 12/15/2024
EPA 533
PFEESA
< MRL
< MRL
3/18/2024 to 12/15/2024
EPA 533
PFHpA
< MRL
< MRL
3/18/2024 to 12/15/2024
EPA 533
PFHpS
< MRL
< MRL
3/18/2024 to 12/15/2024
EPA 533
PFHxA
< MRL
< MRL
3/18/2024 to 12/15/2024
EPA 533
PFHxS
< MRL
< MRL
3/18/2024 to 12/15/2024
EPA 533
PFMBA
< MRL
< MRL
3/18/2024 to 12/15/2024
EPA 533
PFMPA
< MRL
< MRL
3/18/2024 to 12/15/2024
EPA 533
PFNA
< MRL
< MRL
3/18/2024 to 12/15/2024
EPA 533
PFOA
< MRL
< MRL

3/18/2024 to 12/15/2024
EPA 533
PFOS
< MRL
< MRL
3/18/2024 to 12/15/2024
EPA 533
PFPeA
< MRL
< MRL
3/18/2024 to 12/15/2024
EPA 533
PFPeS
< MRL
< MRL
3/18/2024 to 12/15/2024
EPA 533
PFUnA
< MRL
< MRL
3/18/2024 to 12/15/2024
EPA 537.1
NEtFOSAA
< MRL
< MRL
3/18/2024 to 12/15/2024
EPA 537.1
NMeFOSAA
< MRL
< MRL
3/18/2024 to 12/15/2024
EPA 537.1
PFTA
< MRL
< MRL
3/18/2024 to 12/15/2024
EPA 537.1
PFTrDA
< MRL
< MRL

* MRL= Minumum Reporting Levels
Other Possible Contaminants to Consider
Cryptosporidium
Cryptosporidium and giardia are microbial pathogens found in surface water throughout the U.S. Although filtration removes cryptosporidium and giardia, the most commonly used filtration
methods cannot guarantee 100 percent removal. Monitoring conducted by the District indicates the presence of cryptosporidium and giardia in our source water. The District uses UV light
in our water treatment which inhibits these organisms from reproducing and causing sickness. Ingestion of cryptosporidium may cause cryptosporidiosis, an abdominal infection. Symptoms
of infection include nausea, diarrhea, and abdominal cramps. Most healthy individuals can overcome the disease within a few weeks. However, immuno-compromised people are at greater risk
of developing life-threatening illness. Cryptosporidium must be ingested to cause disease, and it may be spread through means other than drinking water.
Radon
Radon is a radioactive gas that you cannot see, taste, or smell. At this time, radon monitoring is not required by the EPA; however, the EPA is considering making radon monitoring a
requirement. The proposed MCL for radon is 4,000 pCi/L for systems which have a public education program for radon. For additional information, call your state radon program or call
EPA's Radon Hotline [phone]).
Lead
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. The District 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 www.epa.gov/safewater/lead.
PFAS
Per- and Polyfluoroalkyl substances (PFAS) are a large group of synthetic chemicals that have been used in industry and consumer products worldwide since 1940s. These chemicals are used
to make household and commercial products that resist heat and chemical reactions and repel oil, stains, grease, and water. Perfluorooctanoic acid (PFOA) and Perfluorooctane sulfonic
acid (PFOS) are some of the major PFAS. PFAS are found in humans, wildlife, and fish all over the world. Some PFAS do not break down easily and therefore stay in the environment and
human body for a very long time. PFAS may affect human hormones and immunity systems. The EPA and Utah Department of Environmental Quality have been evaluating PFAS in drinking water
for many years. For additional information, visit www.epa.gov/pfas or www.deq.utah.gov/pollutants/per-andpolyfluoroakyl-substances-pfas.