DDW-2024-009578

C O N T A C T
U S
Q uest ions ? We'r e h e re t o H e lp!

If you h a ve qu e s ti o n s o n b i lli n g ,
ser v ic e , w a ter q ua l it y , or a n y th ing
el se, plea s e r e ac h o ut to u s .
M o n da y-Fr id a y , 8:30 a.m . to 5 :00 p .m .
4 3 5 -9 4 0-19 16
Boa r d meet ings ar e o p e n t o th e p u bli c
a nd ar e t y p ic all y h e ld o n t h e sec o n d
Thu rsd ay o f t he mont h at 6 :0 0 p.m .
F o r d e ta i ls and n o t ic e o f t he m e e t i n g s ,
v i s it o ur web s it e ww w .mt regi o n al.o rg
CONTENTS:Message from the GM
Our Water
Protecting Water in your Home
Water Quality Data
EPA Health Information
WATER
QUALITY
REPORT
MOUNTAIN REGIONAL WATER
SPECIAL SERVICE DISTRICT
Quality - Reliability - Sustainablity
1
2
3
4
5
2 0 2 3
C O N T A C T
U S
Q u e s t i o n s ? W e 'r e h e r e t o h e l p !

I f y o u h a v e q u e s t i o n s o n b i l l i n g , s e r v i c e , w a t e r
q u a l i t y , o r a n y t h i n g e l s e , p l e a s e r e a c h o u t t o u s .
M o n d a y -F r i d a y , 8 :3 0 a .m . t o 5 :0 0 p .m .
6 4 2 1 N o r t h B u s i n e s s P a r k L o o p R o a d , S u i t e A
P a r k C i t y , U T 8 4 0 9 8
4 3 5 -9 4 0 -1 9 1 6
B o a r d m e e t i n g s a r e o p e n t o t h e p u b l i c a n d a r e
t y p i c a l l y h e l d o n t h e t h i r d T h u r s d a y o f t h e m o n t h a t
6 :0 0 p .m . F o r d e t a i l s a n d n o t i c e o f t h e m e e t i n g s , v i s i t
o u r w e b s i t e w w w .m t r e g i o n a l .o r g
1
Dear Mountain Regional Water Customer,
2023 was a water year for the record books! What we thought was going to take three
years of average snowpack to refill our depleted reservoirs, took only one, and the
excess water was able to make its way down to the Great Salt Lake. When comparing
2022 to 2023, no one could have predicted this dramatic change in precipitation. What
didn’t change dramatically was water usage by our customers. The conservation
measures we asked for in 2022 continued into 2023 and we saw annual usage per
connection remain flat. We thank each and every one of you for your continued
support of the District’s conservation efforts.
While the snowpack this year continues to be above average, we know how
unpredictable our weather can be, so each of us must do our part to continue to
conserve water and become more drought-resilient. Every drop counts!
In 2023 Mountain Regional rolled out a new Landscape Lawn Exchange program in
coordination with Weber Basin Water Conservancy District. We had almost 20
customers participate and four completed their landscape renovation and received the
$3.00 per square foot reimbursement for lawn removed. We will be continuing this
program again in 2024 and would encourage you to consider removing your lawn and
replacing it with water-wise landscaping Please visit website/url for more information.
At Mountain Regional, we continue to monitor for system leaks and ask you to do the
same in your homes and businesses. If you are in your neighborhood and you suspect a
leak or see running water, please contact us.
If you have any questions or concerns, please call me at 435-940-1916 x 310 or email
me at [e-mail]
Andy Garland
General Manager
1 Message from the GM
2 0 2 3 W A T E R Q U A L I T Y R E P O R T
W e a r e h a p p y t o p r e s e n t t o y o u o u r a n n u a l w a t e r q u a l i t y r e p o r t . T h e g o a l o f t h i s r e p o r t i s t o
p r o v i d e y o u w i t h i n f o r m a t i o n a b o u t w h e r e y o u r w a t e r c o m e s f r o m , t h e q u a l i t y o f y o u r w a t e r a n d
o u r c o m p l i a n c e w i t h s t a t e a n d f e d e r a l d r i n k i n g w a t e r s t a n d a r d s . I t i s a l s o a n o p p o r t u n i t y t o
p r o v i d e y o u w i t h t h e m o s t c u r r e n t a n d r e l e v a n t i n f o r m a t i o n r e l a t e d t o c o m m o n w a t e r q u a l i t y
t o p i c s .
M o u n t a i n R e g i o n a l W a t e r i s a p r o -a c t i v e a n d t r a n s p a r e n t p u b l i c w a t e r u t i l i t y f o c u s e d o n q u a l i t y ,
r e l i a b i l i t y , f i s c a l r e s p o n s i b i l i t y , c u s t o m e r s e r v i c e , a n d e n v i r o n m e n t a l s u s t a i n a b i l i t y . P r o v i d i n g s a f e
a n d r e l i a b l e w a t e r s e r v i c e t o o u r c u s t o m e r s t h a t m e e t o r e x c e e d a l l s t a t e a n d f e d e r a l
r e q u i r e m e n t s i s o u r t o p p r i o r i t y .
For the first time, the EPA is requiring water systems to develop a public lead service line inventory and create a plan for
identifying and removing lead service lines.
Lead has seen an increased amount of attention and oversight due to adverse health effects and issues other US cities have
had concerning high levels of lead in drinking water. Lead in drinking water primarily originates in premise plumbing (like a
service lateral), and not from the water source or distribution system. Lead can enter drinking water when a chemical reaction
occurs in plumbing materials that contain lead. This is known as corrosion – dissolving (or wearing away) metal from the pipes
and fixtures.
Mountain Regional Water tests water inside homes within its distribution system considered at risk for lead and copper
contamination, per EPA requirements. Mountain Regional Water is committed to providing high quality drinking water but
cannot control the variety of materials used in customer premise plumbing components. Lead was banned from use on
domestic plumbing in 1986 federally and implemented into Utah Plumbing Code in 1989. Homes built before this date may have
internal plumbing containing lead pipes or solder.
Understanding Unregulated Contaminants in Our Drinking Water
Unregulated contaminants are substances that do not have established drinking water standards set by the Environmental Protection Agency
(EPA). The purpose of monitoring these contaminants is to help the EPA decide whether they need to be regulated in the future. Under the
Safe Drinking Water Act (SDWA), the EPA must select a list of unregulated contaminants every five years for public water systems to monitor.
The most recent list, known as the fifth Unregulated Contaminant Monitoring Rule (UCMR 5), was released on December 27, 2021.
In compliance with UCMR 5, our District has tested for various substances that are not currently regulated, including 29 types of per- and
polyfluoroalkyl substances (PFAS) and lithium, during 2023. Our testing detected PFAS compounds in one of our ground water sources. As a
precaution and to ensure the safety of our drinking water, this source was immediately taken offline for further investigation. It's important to
note that these PFAS compounds, which are summarized below, have not been slated for regulation by the EPA.
For more information about PFAS and their impact, please visit pfas.utah.gov.
Unregulated
Contaminant
Violation
Y/N
Level
Detected
ND/ Low-High
Unit
Measurement
Ideal Goal
(MCLG)
Max
Allowed
(MC)
Year
Sampled Likely Source of Contamination

PFHxA N ND-8.1 ppt
Not established Unregulated 2023
Industrial Activities/Firefighting
Foams/Consumer Products
PFPeA N ND-14 ppt Industrial Activities/Firefighting
Foams/Consumer Products
6:2 FTS N ND-55 ppt Industrial Activities/Firefighting
Foams/Consumer Products
Lithium N ND-15 ppb Natural Occuring
Lead and Copper Service Line Inventory
Mountain Regional Water has been working diligently to develop a service line inventory.
Scan the QR code for more information and fill out a Water Service Line Material Survey.
2
Unregulated Contaminant Monitoring
*ND= not detected
If you have questions about this information, you can contact Sam Grenlie at [e-mail] from Mountain Regional
Water SSD. You can also contact Utah DDW at 801-536-4200 or [e-mail].
UCMR5 Results
2 Our Water
Where your Water Comes From
Nearly half of your drinking water originates from clean groundwater sources. The District pumps this water from wells and
springs up into many storage tanks. The other half comes from surface water which is pumped from the Lost Canyon Intake*
(Rockport Reservoir) on the Weber River and is then treated at our Signal Hill Water Treatment Plant located in Promontory.
All of this clean water is stored to meet your peak day demands and emergency fire protection needs, and is then fed through
over one hundred miles of pipelines to all of the District's customers. The peak day usage for the District in 2023 was 5.8 million
gallons.
Atkinson Well 2
Jailhouse Well
Silver Creek Well 10
Starpointe Well 15B
3 Mile Well
Gorgoza Well 6
Nugget Well
Blackhawk Well 2R
Silver Springs Well 1
Silver Springs Well 3
Summit Park Well 2
Summit Park Well 5
Summit Park Well 7
Bison Bluffs Well 15C
Wagon Trail Well 2
Gulch Well 1
Tank Well 16
Groundwater
Sources
Surface Water
Treatment
The Signal Hill Treatment
Plant treats surface water
from the Weber River
using chemical pre-
treatment, microfiltration
to physically remove
surface water
contaminants, granular
activated carbon to
control taste and odor,
and disinfection to
provide continuous
treatment throughout our
distribution system to
your tap.
Local Water
Systems
We have interconnections to
neighboring public water
systems where water is
intermingled with Summit Water
Distribution Company, Gorgoza
Mutual Water Company, Park
City Municipal, and Pine
Meadow Mutual Water. We
also have emergency
interconnections with High
Valley Water Company, and
Summit County Service Area
#3. All of these connections
offer redundancy and safety
for water customers in the
Snyderville Basin.
Source Protection
Source Protection Plans are
available for your review upon
request. They contain
information about source
protection zones, potential
contamination sources, and
management and protection
strategies. Our sources have
been determined to have a high
level of protection from
potential contamination sources
such as horse pastures, septic
tanks, chemical or fuel storage,
pesticides, and potential
hazardous material accidents.
3
*The Lost Canyon Intake also delivers water to the Park City Municipal Quinns Junction Water Treatment Plant
Like us on Facebook and Instagram to stay up to date on important news and information.
facebook.com/MOUNTAINREGIONALWATER; Instagram: mountainregionalwater
Our Mission:
water quality testing
What test results are included in this report?
Mountain Regional Water routinely monitors regulated and unregulated contaminants in
drinking water. All monitoring data included in this report are from required testing in 2023
If a known health contaminant is not listed in this report, it was not detected in our water.
Do you add fluoride to the water?
No. We do not add fluoride to our water. Trace amounts of fluoride detected in our water
listed in this report are from naturally occurring fluoride in our groundwater.
Do you add chlorine to the water?
Yes. The addition of chlorine is required for all systems serving filtered surface water and a
detectable amount of chlorine residual must be present in all points in the distribution system.
It has been demonstrated that carrying a chlorine residual throughout your system protects
against contamination, acting as a continual water treatment agent in our distribution
process. Chlorine residuals are tested daily in our system.
Do you test for bacteria in the water?
Yes. We routinely test for bacteria throughout all service areas of our water system, above
and beyond what is required by state and federal regulations. We did not have any positive
bacteriological samples in our distribution system in 2023.
How hard is my water?
Water hardness is tested throughout our system. The typical range is 15-25 grains per gallon
of water, or an average of approximately 300 mg/l of hardness as CaCO3, which is
considered hard. Hard water is high in dissolved minerals, largely calcium and magnesium,
and is common throughout Utah.
How can I get my water tested?
We ensure the water delivered to your meter meets state and federal drinking water
standards. If you have water quality concerns at your home, please contact us for lab
testing information.
Frequently
Asked
Questions
About Our
Water
4
Mountain Regional Water Staff
Coagulation and Flocculation
Coagulation is a chemical process that
includes the addition of coagulants to the
water as it enters the plant. Coagulation
allows the particulates to bind together and
form larger particles. As these coagulated
particles are gently mixed, they collide and
clump together forming larger flocs, easing
the removal through sedimentation and
filtration.
Clarification (Sedimentation)
Water flows into the clarifier basin
containing plate settlers. As water passes
upward though the plates, solids and floc
settle from the water and slide to the
bottom of the basin, while the clean water
passes out the top of the clarifier and is
sent to the membrane filters for further
particulate removal.
Microfiltration
Microfiltration is a physical filtration
process where water is passed through the
small pores of a membrane to separate
microorganisms and suspended particles
from the water. Microfiltration membranes
present a physical means of separation
and has proven effective at removing
sediment, algae, large bacteria and
protozoa such as Giardia.
Activated Carbon Filtration
Granular Activated Carbon Filtration is
used to adsorb organic compounds,
removing them from the water and
improving taste and odor.
Disinfection
Disinfection is the final stage in our water
treatment process. Chlorine is added to the
water before it enters the distribution
system and is effective at killing viruses,
bacteria, and even Giardia. It also
provides continuous treatment as water is
delivered throughout our system to your
tap. We provide additional points of
disinfection throughout our distribution
system to maintain an adequate residual
throughout the distribution system.
ENSURING SAFE TAP
WATER
Our Treatment Process
Mountain Regional Water's Signal Hill Treatment Plant is
located in Promontory and treats water from the Lost Canyon
intake on the Weber River. Water treatment is a complicated
process that involves continuous oversight and monitoring to
ensure that the water delivered to your tap is safe to drink.
Our surface water treatment plant utilizes a multi-barrier
approach and state-of-the-art water treatment technology to
ensure it routinely meets and surpasses all federal and state
requirements.
Pall Membrane Filters
Chlorine Generation SystemGranular Activated Carbon
5
Signal Hill Pond
3 Protecting Water in your Home
H O W Y O U A F F E C T
Y O U R W A T E R
Q U A L I T Y
M o u n t a i n R e g i o n a l W a t e r d e l i v e r s
w a t e r t o y o u r p o i n t o f c o n n e c t i o n t h a t
i s c l e a n a n d s a f e , m e e t i n g a n d o f t e n
s u r p a s s i n g a l l s t a t e a n d f e d e r a l
r e q u i r e m e n t s .
H o w e v e r , y o u c a n u n i n t e n t i o n a l l y
c a u s e c o n t a m i n a t i o n o f t h e w a t e r i n
y o u r h o m e . H e r e a r e a f e w t h i n g s y o u
c a n d o t o e n s u r e t h e c l e a n , s a f e
d r i n k i n g w a t e r d e l i v e r e d b y M o u n t a i n
R e g i o n a l W a t e r i s n o t c o m p r o m i s e d b y
y o u r h o m e p l u m b i n g s y s t e m .
Filters and Purifiers
Backflow Prevention Devices
Water Softeners
Water Heaters
Unused Rooms and Properties
All types of water filters and purifiers in your home need to be
properly maintained and monitored. Neglected devices may
not work as intended, can become a home for microbial
growth, or can shed filter material into your home's tap water.
Even the filter in the door of your refrigerator needs to be
properly maintained to avoid degrading your water quality.
Water entering your home is susceptible to backflow
contamination, which means water from your plumbing system
can reverse its flow back into the water distribution system.
Hoses, sprinkler systems, and other water systems are all
potential sources of backflow contamination. Backflow
prevention devices are required to be installed on all irrigation
systems, fire suppression systems, and other hazards as
determined by the District's Cross Connection Control Program.
Our water hardness can range from 15 to 25 grains per gallon. It
is important to check the settings on your water softener to
ensure you are treating your water properly. Excess salt from
softeners is tough on your wallet and bad for down stream
aquatic life and water users.
It's important to monitor the temperature setting on your water
heater to prevent a burn hazard. Also, water that is only
lukewarm creates the perfect breeding ground for bacteria to
grow. We recommend our customers follow current plumbing
code and install expansion tanks on their water heaters to
protect against pressure build up in your home plumbing
system.
If you have a kitchen, bathroom or vacation home that rarely
gets used, you should run water through the faucets on a
frequent basis to prevent stagnant water in pipes and fixtures
from forming microbial growth.
6
LAWN IRRIGATION
SYSTEMS
SWIMMING POOLS
INDUSTRIAL SYSTEMS
WATER FEATURES
HEATING
COOLING
FIRE
SPRINKLER SYSTEMS
ONE WAY
Public
Drinking
Water
Supply
BACKFLOW
PREVENTOR
CLEAN WATER
Backflow Preventers keep
contaminants from flowing back into
the drinking water supply
7
Am I required to have a backflow prevention device?
How do I find a certified backflow technician?
Frequently
Asked
Questions
About our
Backflow
Program
Yes. The CROSS CONNECTION CONTROL PROGRAM of UTAH along with Mountain
Regional Water Rules and Regulations requires an annual test to ensure compliance with
existing applicable minimum health and safety standards. Backflow prevention devices are
required on all irrigation systems, fire suppression systems, and other hazards as determined
by the Cross Connection Control Program of Utah.
Please email reports to: [e-mail] or mail to PO BOX 982320 Park City, UT
84098. You can also drop it off at our office: 6421 N. Business Park Loop Rd, Suite A, Park
City, UT 84098
The Division of Drinking Water keeps a current list of certified backflow technicians. The
link can be found on our website: www.mtregional.org/backflow
*Asking a neighbor or your HOA for recommendations and references is also a good idea.
How do I submit a test report?
For more information on MRWSSD Cross-Connection Control Program please visit our website:
www.mtregional.org/backflow
Annually, millions of gallons of water can pass through
a backflow prevention assembly. Assemblies can be
subjected to summer heat and freezing in winter. Water
chemistry can affect the performance of an assembly.
For example, hard water can form deposits on moving
parts. Small debris, such as sand particles can foul
check valves and prevent moving parts from operating
correctly. Additionally, friction from moving water can
wear components over time. For these reasons,
backflow prevention assemblies must be tested and
maintained to assure they will properly protect your
drinking water. The backflow prevention assembly test
only takes a few minutes and assures that each part of
the assembly is operating correctly.
NOTICE OF BACKFLOW COMPLIANCE DEADLINE: July 2025
Mountain Regional Water SSD requires all customers to have a backflow installed on any and all applicable systems
located on their property.
We understand this may take time for our customers to get these installed and come into compliance. Therefore we have
set a deadline of July 2025 to have the appropriate backflow assemblies installed on these systems.
Please contact our backflow administrator at [e-mail] for any questions regarding this compliance
deadline or assembly requirements.
2023 Water Quality Results: we routinely monitor for contaminants in our drinking water in
accordance with EPA and Utah’s DDW. The following table shows detected contaminants for the period
of January 1st through December 31st, 2023 (or the most recent testing that has been completed).

Regulated
Contaminant
Violation
Y/N
Level Detected
ND/ Low-High Unit Measurement Ideal Goal
(MCLG/MCLRD)
Max Allowed
(MCL/MCLR)
Year
Sampled Likely Source of Contamination

Arsenic N 0-3.5 ppb 0 10 19,20,22,2023
Erosion of natural deposits; Runoff from
orchards; Runoff from glass and electronics
production wastes
Barium N 0.026-0.262 ppm 2 2 19,20,22,2023 Discharge of drilling wastes; Discharge from
metal refineries; Erosion of natural deposits
Cyanide N 0-4.3 ppb 200 200 19,20,22,2023 Discharge from plastic and fertilizer factories;
Discharge from steel/metal factories
Cadmium N 0-0.2 ppb 5 5 19,20,22,2023
Corrosion of galvanized pipes; Erosion of natural
deposits; Discharge from metal refineries; run off
from waste batteries and paints
Chromium N 0-7.3 ppb 100 100 18,19,20,2022 Discharge from steel and pulp mills; Erosion of
natural deposits
Fluoride N 0-0.394 ppm 4 4 19,20,22,2023
Erosion of natural deposits, water additive which
promotes strong teeth; Discharge from fertilizer
and aluminum factories
Mercury N 0-.82 ppb 0.2 2 19,20,22,2023
Erosion of deposits; Discharge from refineries
and factories; Runoff from landfills; Runoff from
cropland
Nickel N 0-7.2 ppb 100 100 19,20,22,2023 Runoff from fertilizer use; Leaching from septic
tanks, sewage; Erosion of natural deposits
Nitrate N 0-7.4 ppm 10 10 19,2023 Runoff from fertilizer use; Leaching from septic
tanks, sewage; Erosion of natural deposits
Selenium N 0-10.2 ppb 50 50 19,20,22,2023 Discharge from petroleum and metal refineries;
Erosion of natural deposits; Discharge from mines
Sodium N 7.271-51.952 ppm 500 none 19,20,22,2023 Discharge from petroleum and metal refineries;
Erosion of natural deposits; Discharge from mines
Sulfate N 7-867.912 ppm 1,000 1,000 19,20,22,2023
Erosion of natural deposits; Discharge from
refineries and factories; Erosion runoff from
landfills and croplands
TDS
(Total Dissolved
Solids)
N 260-1660 ppm 2,000 2,000 19,20,21,22,2023
Erosion of natural deposits.
>1,000 ppm requires blending or evaluation of
other source options
Turbidity
Groundwater N 0-55.8 NTU 0 0.3 19,20,22,23 Soil runoff
Trichloroethylene N 0-0.68 ppb 0 5 19,20,22,2023 Discharge from metal degreasing sites and other
factories
Xylenes N 0-0.001 ppm 10 10 19,20,22,2023 Discharge from petroleum factories; Discharge
from chemical factories
Alpha Emitters N 0-11.1 pCi/l 0 15 19,20,22,2023 Erosion of natural deposits
Combined Radium
226/228 N 0.14-0.94 pCi/l 0 5 19,20,2023 Erosion of natural deposits
Radium- 226 N 0.14-0.56 pCi/l 0 5 19,20,2023 Erosion of natural deposits
Radium-228 N 0-1.3 pCi/l 0 5 19,20,22,2023 Erosion of natural deposits
Total Trihalomethanes
(TTHMs)N 4.89-12.03 ppb 0 80 2023 By-product of water disinfection
Haloacetic Acids
(HAAs)N 0-7.03 ppb 0 60 2023 By-product of water disinfection
Coliform Bacteria N Absent/ND present /absent 0 5 2023 Naturally present in the environment
8
4 Water Quality Results
Regulated at the Source: Inorganics, metals, pesticides, radiological and volatile organic compounds
Regulated in the Distribution System: Disinfection By-Products and Chlorine Results
Regulated
Contaminant
Violati
on
Y/N
Level
Detected
ND/ Low-High
Unit
Measurement
Ideal Goal
(MCLG/MCLR
D)
Max
Allowed
(MCL/MCLR)
Year
Sampled Likely Source of Contamination

Lead
A: 90th
percentile
B: Homes that
exceed AL
C: Highest-
Lowest Level
N
A: 1.7
B: 0
C: 0—10
ppb 0 AL-15 2022 Corrosion of household plumbing
Copper
A: 90th
percentile
B: Homes that
exceed AL
C: Highest-
Lowest Level
N
A: 0.346
B: 0
C: .015-0.59

ppm 1.3 AL=1.3 2022 Corrosion of household plumbing
MRDL: Maximum Residual Disinfectant Level– the highest level of disinfectant allowed in drinking water. There is convincing evidence that the
addition of a disinfectant is necessary for the control of microbial contaminants.
MRDLG: Maximum Residual Disinfectant Level Goal– The level of a disinfectant in drinking water 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.
AL: Action Level– The concentration of a contaminant which, if exceeded, triggers treatment or other requirements which a water system must
follow.
PPM: Parts Per Million or mg/l– one part per million corresponds to one minute in two years.
PPB: Parts Per Billion or ug/l corresponds to one minute in 2,000 years
ND: Not detected
N/A: The measurement does not apply
NTU: Nephelometric Turbidity Unit– water clarity measurement

PCi/l: Picocuries per liter– radioactivity measurement
TT: Treatment Technique– a required process intended to reduce the level
Level Detected: For water systems that have multiple sources of water, the Utah DDW has given systems the option of listing test results in one
table. To accomplish this, the lowest and highest values detected in the multiple sources are recorded in the same space in the report table.
MCLG: Maximum Contaminant Level Goal– The level of a contaminant in drinking water below which there is no known or expected health risks.
MCLGs allow for a margin of safety.
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.
Definitions and Abbreviations (of above table):
9
Water Quality Results– Continued...
EPA: The United States Environmental Protection Agency-The Environmental Protection Agency is an independent executive agency of the United
States federal government tasked with environmental protection matters.
Utah's DDW: Utah Divison of Drinking Water- is a division of the Utah Department of Environmental Quality that regulates public water systems.
For more information on MRWSSD Water Quality Annual Report please visit our website:
www.mtregional.org/ccr
Regulated at the Customer's Tap: Lead and Copper
M E M P H I S S O L U T I O N S2018 | M A R C H
I M P O R T A N T H E A L T H I N F O R M A T I O N
A l l s o u r c e s o f d r i n k i n g w a t e r , i n c l u d i n g b o t t l e d w a t e r , m a y r e a s o n a b l y b e e x p e c t e d t o
c o n t a i n a t l e a s t s m a l l a m o u n t s o f s o m e c o n t a m i n a n t s . T h e p r e s e n c e o f c o n t a m i n a n t s
d o e s n o t n e c e s s a r i l y i n d i c a t e t h a t w a t e r p o s e s a h e a l t h r i s k . M o r e i n f o r m a t i o n a b o u t
c o n t a m i n a n t s a n d p o t e n t i a l h e a l t h e f f e c t s c a n b e o b t a i n e d b y c a l l i n g t h e E P A 's S a f e
D r i n k i n g W a t e r H o t l i n e : (8 0 0 ) 4 2 6 -4 7 9 1 .
S o m e p e o p l e m a y b e m o r e v u l n e r a b l e t o c o n t a m i n a n t s i n d r i n k i n g w a t e r t h a n t h e
g e n e r a l p o p u l a t i o n . I m m u n o c o m p r o m i s e d p e r s o n s s u c h a s p e r s o n s w i t h c a n c e r
u n d e r g o i n g c h e m o t h e r a p y , p e r s o n s w h o h a v e u n d e r g o n e o r g a n t r a n s p l a n t s , p e o p l e
w i t h H I V /A I D S o r o t h e r i m m u n e s y s t e m d i s o r d e r s , s o m e e l d e r l y , a n d i n f a n t s c a n b e
p a r t i c u l a r l y a t r i s k f r o m i n f e c t i o n s . T h e s e p e o p l e s h o u l d s e e k a d v i c e f r o m t h e i r h e a l t h
c a r e p r o v i d e r s a b o u t d r i n k i n g w a t e r . E P A /C D C g u i d e l i n e s o n a p p r o p r i a t e m e a n s t o
l e s s e n t h e r i s k o f i n f e c t i o n b y C r y p t o s p o r i d i u m a n d o t h e r m i c r o b i o l o g i c a l c o n t a m i n a n t s
a r e a v a i l a b l e f r o m t h e S a f e D r i n k i n g W a t e r H o t l i n e , (8 0 0 ) 4 2 6 -4 7 9 1 , o r
h t t p s ://w w w .e p a .g o v /g r o u n d -w a t e r -a n d -d r i n k i n g -w a t e r /s a f e -d r i n k i n g -w a t e r -
i n f o r m a t i o n
L E A D
I f p r e s e n t , e l e v a t e d l e v e l s o f l e a d c a n c a u s e s e r i o u s h e a l t h p r o b l e m s , e s p e c i a l l y f o r
p r e g n a n t w o m e n a n d y o u n g c h i l d r e n . L e a d e n t e r s d r i n k i n g w a t e r p r i m a r i l y f r o m
m a t e r i a l s a n d c o m p o n e n t s a s s o c i a t e d w i t h s e r v i c e l i n e s a n d h o m e p l u m b i n g . M o u n t a i n
R e g i o n a l W a t e r i s c o m m i t t e d t o p r o v i d i n g h i g h q u a l i t y d r i n k i n g w a t e r b u t c a n n o t
c o n t r o l t h e v a r i e t y o f m a t e r i a l s u s e d i n p r e m i s e p l u m b i n g c o m p o n e n t s . W h e n y o u r
w a t e r h a s b e e n s i t t i n g f o r s e v e r a l h o u r s , y o u c a n m i n i m i z e t h e p o t e n t i a l f o r l e a d
e x p o s u r e b y f l u s h i n g y o u r t a p f o r 3 0 s e c o n d s t o 2 m i n u t e s b e f o r e u s i n g w a t e r f o r
d r i n k i n g o r c o o k i n g . I f y o u a r e c o n c e r n e d a b o u t l e a d i n y o u r w a t e r , y o u m a y w i s h t o
h a v e y o u r w a t e r t e s t e d . I n f o r m a t i o n o n l e a d i n d r i n k i n g w a t e r , t e s t i n g m e t h o d s , a n d
s t e p s y o u c a n t a k e t o m i n i m i z e e x p o s u r e i s a v a i l a b l e f r o m t h e S a f e D r i n k i n g W a t e r
H o t l i n e o r a t h t t p s ://w w w .e p a .g o v /l e a d /f o r m s /l e a d -h o t l i n e -n a t i o n a l -l e a d -
i n f o r m a t i o n -c e n t e r

5 EPA Health Information
Mountain Regional Water tests water inside homes within its distribution system considered at risk for lead and copper
contamination, per EPA requirements (results shown on page 9). Our water sources have no detectable amounts of lead or
copper and we have no known lead service lines in our system. However, homes built before 1987 may have internal plumbing
containing lead pipes or solder. Lead was banned from use on domestic plumbing in 1986. In 1996, the EPA expanded the
regulation to include plumbing fixtures and fittings (endpoint devices). We routinely test water quality parameters to ensure that
we fulfill our responsibility of delivering water to your tap that is not corrosive. If you are concerned about lead in your water,
you may wish to have it tested.

10