DDW-2024-009626

DETERMINATION OF CONTAMINANT
Re
p
o
r
t

D
e
s
i
g
n
e
d

b
y

D
i
a
n
a

W
a
i
t
e
NO
T

A
L
L

C
O
N
T
A
M
I
N
A
N
T
S

A
R
E

R
E
Q
U
I
R
E
D

T
O

B
E

T
E
S
T
E
D

Y
E
A
R
L
Y
.

U
N
L
E
S
S

O
T
H
E
R
W
I
S
E

NO
T
E
D

B
Y

Y
E
A
R

S
A
M
P
L
E
D
,

T
E
S
T
I
N
G

O
C
C
U
R
R
E
D

B
E
T
W
E
E
N

J
A
N

-

D
E
C
,

2
0
2
3
LEAD
SERVICE
CROSS
NONE WERE DETECTED
Contaminant
Violation
Y/N + Sample Count MCLG MCL
Date
Sampled
Likely Source of
Contamination
TCR TABLES - COLIFORM BACTERIA & MICROBIOLOGICAL CONTAMINANTS
Total Coliform
Bacteria N 1 0 5 2023 Naturally present in the environment
E. Coli N 0 0 None 2023 Human and animal fecal waste.
Contaminant Violation
Y/N
Level Detected
ND/Low-High
Unit
Measurement
MCLG MCL Date
Sampled
Likely Source of Contamination
RADIOACTIVE CONTAMINANTS
Alpha Emitters N 4.7 - 6.4 pCi/L 0 15 2019, 2022 Erosion of natural deposits
Radium 228 N 0 - 0.25 pCi/L 0 5 2019, 2022 Erosion of natural deposits
TURBIDITY
Turbidity for
Ground Water N 0.1 - 3.65 NTU 0 0.30 2019, 2022 Soil Runoff
REGULATED INORGANIC CONTAMINANTS
Arsenic N 0 - 0.5 ppb 0 10 2019, 2022
Erosion of natural deposits; runoff from
orchards; runoff from glass and electronics
production wastes
Barium N 50 - 176 ppb 2000 2000 2019, 2022 Discharge of drilling wastes; discharge from
metal refineries; erosion of natural deposits
Cyanide N 0 - 6.4 ppb 200 200 2019, 2022 Discharge from plastic and fertilizer factories;
Discharge from steel/metal factories.
Fluoride N 0 - 216 ppb 4000 4000 2019, 2022
Erosion of natural deposits; water additive which
promotes strong teeth; discharge from fertilizer
and aluminum factories
Nitrate N 0 - 3546 ppb 10,000 10,000 2023 Runoff from fertilizer use; leaching from septic
tanks, sewage; erosion of natural deposits
Selenium N 0.6 - 2.9 ppb 50 50 2019, 2022
Discharge from petroleum and metal
refineries; erosion of natural deposits; discharge
from mines
Sodium N 6 - 19 ppm 500 none set by EPA 2019,
2022, 2023
Discharge from petroleum and metal
refineries; Erosion of natural deposits;
Discharge from mine
Sulfate N 31 - 104 ppm 1000 1000 2019,
2022, 2023
Erosion of natural deposits; discharge from
refineries and factories; runoff from
landfills, runoff from croplan
Total Dissolved
Solids (TDS)N 240 - 348 ppm 2000 2000 2019,
2022, 2023 Erosion of natural deposit
LEAD AND COPPER
Lead N 90th percentiles: 2.2
0 - 228.8 ppb 0 AL=15 2021 Corrosion of household plumbing systems,
erosion of natural depositsNumber of Sites over Action Level = 2
Elevated lead levels were detected in two home samples and the property owners were notified. The citywide water system did not show elevated levels of lead.
Copper N 90th percentiles: 141
27 - 922 ppb 1300 AL=1300 2021 Erosion of natural deposits; Leaching from
wood preservatives; Corrosion of household
plumbing systemsNumber of Sites over Action Level = 0
Our drinking water distribution
system has many connections.
Concerns for adverse effects to
the system are minimal when those
connections are properly installed
and maintained. The supply and
the quality of drinking water may be
affected if connections are made
to the system that are unapproved
or improperly installed; otherwise
referred to as a cross connection.
Cross connections can allow
contaminated water or chemicals
to intersperse into the drinking
water supply if the connection is
not properly protected. Improper
connections not only compromise
the drinking water quality but can
also affect you and your family’s
health.
What can be done by you, our
customer, to alleviate this problem?
Do not make or allow improper or
unapproved connections at your
homes. Something as seemingly
harmless as an 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.
Determine and avoid all possible
ways harmful substances could find
a route to your drinking water; cross
connection allowed at your home
will affect you and your family first.
If you’d like to learn more about
helping to protect the quality of
our drinking water, call us for further
information about ways you
can help.
Awareness
ResultsTESTING
In addition to the constituents listed in the table
to the above, we also test for over 65 others.
DefinitionsTABLE
Maximum Contaminant Level (MCL):
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 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.
Action Level (AL): The concentration
of a contaminant which, if exceeded,
triggers treatment or other requirements
which a water system must follow.
Low Number - High Number – lowest
and highest level of contamination
measured between all system water
sources.
ppm - parts per million or milligrams per
liter (mg/l) which ratio is equal to one
dollar in $1,000,000
ppb - parts per billion or micrograms per
liter (ug/l) which ratio is equal to one
dollar in $1,000,000,000.
pCi/L - picocuries per liter is a measure
of the radioactivity in water.
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.
90th percentiles - 90 % of the samples
were at or below this value. EPA
considers the 90th percentile value the
same as an “average” value for other
contaminants.Highland City public works has the best interest of the
community at heart and works continually, night or
day, to ensure the highest quality water is provided
to every tap. Water is the most precious resource
to our community’s current wellbeing and our
bright future. Our constant goal is to provide
you with a safe and dependable supply of
drinking water. We make every available effort to
continually improve the water delivery process
and protect our water resources.
Customer
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. FDA regulations establish limits
for contaminants in bottled water which
must provide the same protection for
public health. 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 CDC guidelines on appropriate
means to lessen the risk of infection by
Cryptosporidium and other microbial
contaminants are 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. We
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.
Connection
The state and federal government imposes the highest level of concern for the
quality of drinking water, and has set the MCLs at very strict levels. To illustrate
the possible health effects, a person would have to drink over 2 quarts of
water with the contaminant at the MCL level every day of their life to
have a 0.000001% chance of having the described health effect. 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 impurities
do not necessarily pose a health risk. Should there be a
concern for your safety, we will contact you and let you
know the appropriate action to take to continue to have
safe drinking water.
Levels