HomeMy WebLinkAboutConsumer Confidence Report - For calendar year 2025 (published in 2026)1
Consumer Consumer Consumer Confidence
Report for Calendar Year 2025
(Published 2026)
2
The Otay Water District is pleased to provide you with
the annual Consumer Confidence Report. This report
presents a snapshot of water quality in the District’s
service area during calendar year 2025. Included are
details about where your water comes from, what it
contains, and how it compares to California standards.
The information in this report represents only a small
part of what the District does to ensure
high quality drinking water. Using one or more
state-certifi ed laboratories, the District routinely
inspects and analyzes the water supply for a range
of elements that have the potential to degrade the
quality of your water. Only compounds detected
in water sources are included in this report.
As in years past, its customers’ tap water has met
all United States Environmental Protection Agency
(USEPA) and State Water Resources Control Board’s
(State Board) Division of Drinking Water health
standards. The District is vigilant in safeguarding its
water supplies. It is once again proud to report that
its system has met all water quality standards, and
it has never exceeded a health-related maximum
contaminant level.
Your Consumer Confi dence Report
Otay Turns 70!
In 2026, the Otay Water District proudly celebrates 70 years of providing safe, reliable drinking water
to communities in Southeastern San Diego County.
Established in 1956 as the Otay Municipal Water District, it initially served a population of fewer than 1,200.
By 1960, the District had grown to approximately 700 water connections and delivered about 500 acre-
feet of water annually.
Today, the District serves a population of more than 242,000 through more than 52,000 water connec-
tions, delivering an average of 27,000 acre-feet of water annually. Access to safe and dependable
water since 1956 has helped support the growth of local neighborhoods, schools, businesses, and
industries—helping shape a vibrant and diverse region.
Through strategic planning and ongoing investment in infrastructure, the District is well positioned to
meet the evolving needs of the communities it serves. It remains committed to providing exceptional
water and wastewater service while managing resources in a transparent and fi scally responsible manner.
To learn more about the District’s 70th anniversary, visit otaywater.gov/70th-anniversary and join the
celebration by following the District on social media @otaywater.
Note:While 2026 marks the District’s 70th anniversary, the water quality
information presented in this report refl ects the data from calendar
year 2025.
Otay Turns 70!Otay Turns 70!Otay Turns 70!Otay Turns 70!
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About the Otay Water District
The District is a public water service provider
established by the State Legislature in 1956 as a
special district. Today, it delivers water to approxi-
mately 242,000 customers within roughly 125 square
miles of southeastern San Diego County, including the
communities of eastern Chula Vista, Bonita, Jamul,
Spring Valley, Rancho San Diego, unincorporated
areas of El Cajon and La Mesa, and eastern Otay Mesa
along the international border with Mexico.
The District purchases 100% of its treated water.
Approximately 85% is an imported blend from the
Colorado River and the California State Water
Project. Approximately 15% of the District’s treated
water comes from local supplies, including local
water storage within San Diego County and
desalinated seawater from the Pacific Ocean.
The District purchases its treated water from the
Metropolitan Water District of Southern California’s
(MWD) Robert A. Skinner Treatment Plant, the
San Diego County Water Authority’s Twin Oaks Valley
Water Treatment Plant, the Claude “Bud” Lewis
Carlsbad Desalination Plant, and the Helix Water
District’s R.M. Levy Water Treatment Plant.
Source Water Assessments
MWD assessed the vulnerability of its imported
water in 2020 for the Colorado River and in 2021 for
the State Water Project. These source waters are
exposed to stormwater runoff, recreational activities,
wastewater discharges, wildlife, fi res, and other
watershed-related factors that could affect water
quality. Treatment to remove specifi c contaminants
can be more expensive than measures to protect
water at the source, which is why MWD and other
water agencies invest resources to support improved
watershed protection programs. Helix Water District
assessed Lake Jennings in March 2021. This assessment
found the lake’s water quality to be vulnerable to
wastewater, recreation, development, equestrian
properties, and pesticide/herbicide use. For more
information on source water assessments, contact
System Operations Manager Jake Vaclavek at
619-670-2230.
Public Participation
The District encourages public participation from
its customers. Its board of directors generally meets
on the fi rst Wednesday of each month at 3:30 p.m.
at its headquarters, located at 2554 Sweetwater
Springs Blvd., Spring Valley, CA 91978. The public is
encouraged to attend these meetings, which are
also streamed live at otaywater.gov. For directions,
agendas, and additional information, please call
(619) 670-2222 or visit otaywater.gov.
Safety
Sources of drinking water (both tap water and
bottled water) can include the ocean, rivers, lakes,
streams, ponds, reservoirs, springs, 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. It can also
pick up substances resulting from the presence of
animals or from human activity.
Drinking water, including bottled water, may reason-
ably 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. To ensure that tap water is safe to drink, the
USEPA and the State Water Board prescribe regulations
that limit the amount of certain contaminants in water
provided by public water systems. The United States
Food and Drug Administration’s (FDA) regulations and
California law also establish limits for contaminants in
bottled water that must provide the same protection
for public health.
Some people may be more vulnerable to contam-
inants 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
of infections. These people should seek advice about
drinking tap water from their healthcare providers.
Guidelines, from the USEPA and the Centers for
Disease Control, on the appropriate means to lessen
the risk of infection by Cryptosporidium and other
microbial contaminants are available by calling the
Safe Drinking Water Hotline at (800) 426-4791.
More information about contaminants and potential
health effects can be obtained by calling the USEPA’s
Safe Drinking Water Hotline at (800) 426-4791 or
visiting epa.gov/ground-water-and-drinking-water.
Otay Water District Board of Directors
Francisco X. Rivera, President .................................Division 1
Mark Robak, Vice President ........................................Division 5
Delfi na Gonzalez, Treasurer.......................................Division 2
Gary Croucher, Director ................................................Division 3
Jose Lopez, Director .............................................................Division 4
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Contaminants That May Be Present in Source Water
• Microbial contaminants such as viruses and
bacteria that may come from sewage treatment
plants, septic systems, agricultural livestock
operations, and wildlife.
• Inorganic contaminants, such as salts and
metals that can be naturally occurring or
result from urban stormwater runoff, industrial
or domestic wastewater discharges, oil and gas
production, mining, or farming.
• Pesticides and herbicides that may come from
a variety of sources, such as agriculture, urban
stormwater runoff, and residential uses.
• Organic chemical contaminants, including
synthetic and volatile organic chemicals that
are by-products of industrial processes and
petroleum production, and can also come from
gas stations, urban stormwater runoff, agricultural
applications, and septic systems.
•Radioactive contaminants that can be naturally
occurring or the result of oil and gas production
and mining activities.
Contaminants That May Be Present in HomePlumbing Systems
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 it cannot control the variety of
materials used in plumbing components. When your
water has been sitting for several hours, you can
minimize the potential of lead exposure by running
your faucet for 30 seconds to two 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
by calling the Safe Drinking Water Hotline at
(800) 426-4791 or visiting epa.gov/safewater/lead.
Concerns Over Lead in the Water Supply
None of the District’s 755 miles of potable water
mains or service lines are made of lead. Also, under
the USEPA’s Lead and Copper Rule, the District is
required to collect and test water samples from
select homes. In the District’s service area, lead levels
are well below USEPA standards, and 100% of water
samples showed lead levels below the action level
of 15 parts per billion. If you would like to learn more
about lead in drinking water, visit the USEPA’s website
at epa.gov/safewater/lead.
The District completed the initial lead service line
inventory required by USEPA’s Lead and Copper Rule
Revisions. The deadline for the initial inventories was
October 16, 2024. Through completing a historical
records review and fi eld investigations, the District
has determined it has no lead or galvanized requiring
replacement service lines in its distribution system.
This includes any privately-owned or customer-
owned service lines. To request the inventory,
please email opinion_form@otaywater.gov.
The Truth About Tap Water
Beliefs: Surveys have found that most consumers who
drink bottled water do so because they enjoy its
taste or portable convenience. Others drink bottled
water because they believe it to be purer or safer
than their tap water.
The Truth: Did you know that the average bottle of
water can cost up to 1,000 times more than tap
water? Despite what its higher cost would lead us to
believe, estimates are that 25% or more of the bottled
water on the market is simply repackaged tap water.
Tap water is regulated by the USEPA under the Safe
Drinking Water Act, while bottled water is consid-
ered a food and therefore regulated by the FDA.
Though some bottlers may voluntarily exceed FDA
standards, bottled water and public water supplies
in the United States must meet similar standards
for safe drinking water. For more information, visit
drinktap.org.
Your Options: It is important to know that you have
more affordable options than bottled water. Al-
though tap water is safe to drink, some people do
not prefer the taste.
5
For more information about California-certifi ed residential water
treatment devices, visit the State Board’s website at waterboards.ca.gov/
drinking_water/certlic/device/watertreatmentdevices.html.
1
2
Tips to Improve Tap Water Taste
Chill a pitcher of tap water in your refrigerator.
Fill your reusable water bottles or thermoses
with water from a chilled water pitcher. This is
environmentally friendly and allows for an
inexpensive way to achieve refreshing portability.
Install a residential water treatment device.
Home water fi ltration systems are convenient,
easy to use, and enhance the taste of water.
These systems achieve the same desired result
and cost a fraction of the price of bottled water.
Additional Information
The Otay Water District appreciates
your comments and active partici-
pation. If you have questions about
the information in this report or
testing processes, please contact
System Operations Manager Jake
Vaclavek at (619) 670-2230 or visit
otaywater.gov. You can also fi nd
helpful information by contacting
the following agencies:
State Water Resources
Control Board
P.O. Box 100
Sacramento, CA 95812-0100
Division of Drinking Water:
(916) 449-5577
waterboards.ca.gov/drinking_water
United States
Environmental Protection Agency
EPA Offi ce of Ground Water and
Drinking Water
1200 Pennsylvania Avenue, N.W.
(Mail Code 4606M)
Washington, D.C. 20460
Safe Drinking Water Hotline:
(800) 426-4791
water.epa.gov/drink/index.cfm
Otay Water District
2254 Sweetwater Springs Blvd.
Spring Valley, CA 91978-2004
(619) 670-2222
opinion_form@otaywater.gov
otaywater.gov
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Otay Water District’s Annual Water Quality Report 2025
PARAMETER UNITS
STATE OR FEDERAL MCL [MRDL]
PHG(MCLG)[MRDLG]
STATEDLR(RL)
RANGE AVERAGE TWIN OAKSPLANT
CARLSBADDESAL PLANT
HELIX PLANT SKINNER PLANT MAJOR SOURCES IN DRINKING WATER
PRIMARY STANDARDS — Mandatory Health-Related Standards
CLARITY
Combined Filter NTU 0.3/0.1 NA NA Highest 0.10 0.06 0.17 0.07
Effl uent Turbidity %95 NA NA %<=0.3 or <=0.1 (a)100 100 100 100 Soil runoff
MICROBIOLOGICAL
Total Coliform Bacteria (b)State Total Coliform Rule %5.0 (0)NA Distribution System-wide: Naturally present in the environmentOtay Distribution System = 0.6%
E.coli (c)State Total Coliform Rule Num-ber 0 (0)NA
Distribution System-wide: Human and animal fecal wasteOtay Distribution System=0%
INORGANIC CHEMICALS
Aluminum (d)ppb 1000 600 50 Range ND-70 ND ND-320 ND-120 Residue from water treatment process; natural deposits erosionAverageNDND16657
Barium ppb 1000 2000 100 Range ND-105 ND ND ND Discharges of oil drilling wastes and from metal refi neries; erosion of natural depositsAverageNDNDNDND
FluorideTreatment-related ppm 2.0 1 0.1 Range 0.2-0.7 0.6-0.9 0.6-0.9 0.6-0.8 Erosion of natural deposits
Water additive that promotes strong teethAverage0.6 0.7 0.7 0.7
Otay Distribution System Range: 0.5-0.9
Otay Distribution System Average: 0.7
Nitrate (as N)ppm 10 10 0.4 Range ND-0.5 ND ND ND Runoff and leaching from fertilizer use; septic tank and sewage; natural deposits erosionAverageNDNDNDND
RADIOLOGICALS
Gross AlphaParticle Activity pCi/L 15 (0)3 Range ND ND ND-4 ND-4 Erosion of natural deposits
Average ND ND ND ND
Gross BetaParticle Activity (e)pCi/L 50 (0)4 Range NA ND ND ND-5 Decay of natural and man-made depositsAverage4NDNDND
CombinedRadium-226 + 228 pCi/L 5 (0)NA Range ND .03-1.3 ND ND Erosion of natural deposits
Average ND .08 ND ND
Uranium pCi/L 20 0.43 1 Average 2-3 ND ND-3 ND-3 Erosion of natural deposits
Average 2 ND 1 2
DISINFECTION BY-PRODUCTS, DISINFECTANT RESIDUALS, AND DISINFECTION BY-PRODUCTS PRECURSORS
Total Trihalomethanes(TTHM) ppb Distribution System-wide:Otay Distribution System Range: 8.7-54.0 By-product of drinking water chlorination80 (f)NA (1.0)Highest LRAA: 46
Haloacetic Acids (fi ve)(HAA5)ppb Distribution System-wide:Otay Distribution System Range: 1.6-23.5 By-product of drinking water chlorination60 (f)NA (1.0)Highest LRAA: 18
Total Chlorine Residual ppm Distribution System-wide:Otay Distribution System Range: 0.1-3.5 Drinking water disinfectant added for treatment[4.0] (g)[4.0](0.1)Highest RAA: 2.4
Bromate ppb 10 (g)0.1 1.0 Range ND-13 NA ND ND-8.3 By-product of drinking water ozonationAverage5NAND1.8
DBP Precursors Control(TOC)ppm TT NA 0.30 Range 1.8-2.3 NA 1.6-4.1 2.0-2.8 Various natural and man-made sourcesAverage2.1 NA 2.7 2.6
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SECONDARY STANDARDS — AESTHETIC STANDARDS
Aluminum (d)ppb 200 600 50
Range ND-70 ND ND-320 ND-120 Residue from water treatment process; natural deposits erosionAverageNDND16657
Chloride ppm 500 NA NA Range NA 59-110 81-95 87-91 Runoff/leaching from natural deposits; seawater infl uenceAverageNA858989
Color Units 15 NA (2.5)Otay Distribution System Range: ND Naturally occurring organic materialsOtay Distribution System Average: ND
Odor Threshold TON 3 NA 1 Otay Distribution System Range: ND-1 Naturally occurring organic materialsOtay Distribution System Average: ND
Specifi c Conductance µS/cm 1600 NA NA Range NA 235-531 740-950 824-847 Substances that form ions in water; seawater infl uenceAverage840443833836
Sulfate ppm 500 NA 0.5 Range 100-160 12-15 100-190 164-171 Runoff/leaching from natural deposits; industrial wastesAverage14614147168
Total Dissolved Solids(TDS)ppm 1000 NA NA Range 250-490 105-310 420-580 501-513 Runoff/leaching from natural deposits; seawater infl uenceAverage337239473507
Turbidity NTU 5 NA 0.10 Otay Distribution System Range: ND-0.25 Soil runoff
Otay Distribution System Average: ND
Otay Water District’s Annual Water Quality Report 2025
PRIMARY STANDARDS — LEAD AND COPPER RULE — SAMPLED AT HOME TAPS IN 2023
Copper (k)ppm AL=1.3 0.3 0.05
0 sites above AL out of 78 sampled90th percentile=0.19; Range: ND-0.23 Internal corrosion of household pipes; erosion of natural deposits
Lead (k)ppb AL=15 0.2 5
0 sites above AL out of 78 sampled90th percentile: ND; Range: ND Internal corrosion of household pipes; erosion of natural deposits
FEDERAL UNREGULATED CONTAMINANTS MONITORING RULE (UCMR5) OTAY WATER DISTRICT SAMPLED IN 2024-2025 (I)
Lithium
ppb NA NA (9.0)
Otay Distribution System Range: ND - 28.9 Naturally-occurring; used in electrochemical cells, batte-ries, and organic syntheses and pharmaceuticalsOtay Distribution System Average: 13.7
PARAMETER UNITS
STATE OR FEDERAL MCL [MRDL]
PHG(MCLG)[MRDLG]
STATEDLR(RL)
RANGE AVERAGE TWIN OAKSPLANT
CARLSBADDESAL PLANT
HELIX PLANT SKINNER PLANT MAJOR SOURCES IN DRINKING WATER
8
Footnotes
(a) The turbidity performance standards regulated by a Treatment Technique shall be less than or equal to 0.3 NTU in 95% of the measurements at Skinner and Helix plants and less than or equal to 0.1 NTU in 95% of the measurements at Twin Oaks and Carlsbad Desal Plants. Turbidity is a measure of the cloudiness of the water and is an indicator of treatment performance.
(b) Total coliform MCL: No more than 5.0% of the monthly samples may be total coliform-positive. The highest monthly percentage of positive samples is reported. The MCL was not violated.
(c) E. coli MCL: The occurrence of two consecutive total coliform-positive samples, one of which contains E. coli, constitutes an acute MCL violation. The total number of positive samples during the year is reported. The MCL was not violated.
(d) Aluminum has both primary and secondary standards.
(e) The gross beta particle activity MCL is 4 millirem/year annual dose equivalent to the total body or any internal organ. SWRCB considers 50 pCi/L to be the level of concern for beta particles.
(f) Compliance based on locational running annual average (LRAA).
(g) Compliance based on running annual average (RAA).
(h) AI < 10.0 = Highly aggressive and very corrosive waterAI > 12.0 = Non-aggressive waterAI (10.0 - 11.9 ) = Moderately aggressive water
(i) Positive SI is non-corrosive, tendency to deposit calcium carbonate on pipes. Negative SI is corrosive, tendency to dissolve calcium carbonate.
(j) Hardness can also be reported in grains per gallon. The distribution system range is 8.2-14.6 grains per gallon of hardness. The average is 9.4 grains per gallon of hardness.
(k) Lead and copper are regulated as a Treatment Technique under the Lead and Copper Rule. It requires systems to take water samples at the consumers’ taps. The action levels, which trigger water systems into taking treatment steps if exceeded in more than 10%of the tap water samples, are 1.3 ppm for copper and 15 ppb for lead. Next triennial monitoring will be performed in 2026.
(l) Under UCMR5, samples were collected and analyzed for 29 per- and polyfl oroalkyl substances (PFAS). All results were ND.
Otay Water District’s Annual Water Quality Report 2025
OTHER PARAMETERS
CHEMICAL
Alkalinity (as CaCO3)ppm NA NA NA Range NA 46-83 91-138 105-108 Runoff/leaching from natural depositsAverage12062119106
Boron ppb NL=1000 NA 100 Range NA 510-920 ND-130 NA Runoff/leaching from
natural deposits; industrial wastesAverageNA690ND130
Calcium ppm NA NA NA Range NA 17-69 36-64 54-55 Runoff/leaching from natural depositsAverageNA245054
Chlorate ppb NL=800 NA (20)Range 220-460 NA NA ND By-product of drinking water chlorination; industrial processesAverage303NANAND
Chromium VI ppb 10 0.02 0.1 Range ND-0.4 ND ND ND Runoff/leaching from natural deposits; discharge from industrial waste factoriesAverage0.2 ND ND ND
Corrosivity (h) (as Aggressiveness Index)AI NA NA NA Range NA NA 11.8-12.7 NA Elemental balance in water; affected by temperature, other factorsAverageNANA12.2 12.3
Corrosivity (i) (as Saturation Index)SI NA NA NA Range NA 0.07-0.59 NA 0.48-0.57 Elemental balance in water; affected by temperature, other factorsAverageNA0.34 NA 0.52
Hardness (as CaCO3) (j)ppm NA NA NA Range NA 54-69 155-250 228-232 Runoff/leaching from natural depositsAverageNA61206230
Magnesium ppm NA NA NA Range NA 1-2 16-22 NA Runoff/leaching from natural depositsAverageNA12021
pH pH Units NA NA NA Otay Distribution System Range: 8.0-8.5
Otay Distribution System Average: 8.3
Potassium ppm NA NA NA Range NA ND-49.5 3.6-4.9 4.2-4.4 Naturally present in the environmentAverageNA31.2 4.2 4.3
Sodium ppm NA NA NA Range NA 48-62 71-77 83-87 Naturally present in the environmentAverageNA577585
Vanadium ppb NL = 50 NA 3 Range NA NA ND-4 ND Naturally present in the environment, industrial waste dischargeAverage3NANDND
PARAMETER UNITS
STATE OR FEDERAL MCL [MRDL]
PHG(MCLG)[MRDLG]
STATEDLR(RL)
RANGE AVERAGE TWIN OAKSPLANT
CARLSBADDESAL PLANT
HELIX PLANT SKINNER PLANT MAJOR SOURCES IN DRINKING WATER
99
Defi nitions
Maximum Contaminant Level (MCL): The highest level
of a contaminant that is allowed in drinking water.
Primary MCLs are set as close to the PHGs (or MCLGs)
as is economically and technologically feasible.
Secondary MCLs are set to protect the odor, taste,
and appearance of drinking water.
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 are set by
the U.S. Environmental Protection Agency.
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
refl ect the benefi ts of the use of disinfectants to control
microbial contaminants.
Primary Drinking Water Standard (PDWS): MCLs, MRDLs
and treatment techniques (TTs) for contaminants that
affect health, along with their monitoring and reporting
requirements.
Public Health Goal (PHG): The level of a contaminant in
drinking water below which there is no known or
expected risk to health. PHGs are set by the California
Environmental Protection Agency.
Regulatory Action Level (AL): The concentration of a
contaminant which, if exceeded, triggers treatment or
other requirements that a water system must follow.
Treatment Technique (TT): A required process intended
to reduce the level of a contaminant in drinking water.
Otay Water District’s Annual Water Quality Report 2025
Abbreviations
AI Aggressiveness Index
AL Action Level
CaCO3 Calcium Carbonate
DBP Disinfection By-Products
DLR Detection Limits for Purposes of Reporting
LRAA Locational Running Annual Average
MCL Maximum Contaminant Level
MCLG Maximum Contaminant Level Goal
MRDL Maximum Residual Disinfectant Level
MRDLG Maximum Residual Disinfectant Level Goal
N Nitrogen
NA Not Applicable
ND Not Detected
NL Notifi cation Level
NTU Nephelometric Turbidity Units
NR Not Reported
pCi/L picoCuries per Liter
PHG Public Health Goal
ppb parts per billion or micrograms
per liter (µg/L)
ppm parts per million or milligrams per liter (mg/L)
ppt parts per trillion or nanograms per liter (ng/L)
RAA Running Annual Average
Range Results based on minimum and
maximum values
RL Reporting Limit
SI Saturation Index
SWRCB State Water Resources Control Board
TOC Total Organic Carbon
TON Threshold Odor Number
TT Treatment Technique
µS/cm microSiemen per centimeter
10
Informe de Informe de Informe de Confianzaal consumidor 2025
(Publicado en el año 2026)
1111
Este año celebramos con orgullo 70 años de proveer agua potable, segura y confi able a las
comunidades del sureste del condado de San Diego.
El Distrito se formó en 1956 como Distrito Municipal de Agua de Otay. Al comienzo prestaba servicio a
una población de menos de 1,200 habitantes. Para 1960, el Distrito había crecido hasta alcanzar aprox-
imadamente 700 conexiones de agua y suministraba cerca de 500 acres-pie de agua anualmente.
En la actualidad, el Distrito atiende a una población de más de 242,000 habitantes a través de más de
52,000 conexiones de agua, suministrando un promedio de 27,000 acres-pie de agua al año. El acceso
a agua segura y confi able desde 1956 ha contribuido al crecimiento de los vecindarios, escuelas,
empresas e industrias locales, ayudando a dar forma a una región vibrante y diversa.
A través de una planeación estratégica e inversión continua en infraestructura, el Distrito se encuentra
bien posicionado para satisfacer las necesidades cambiantes de las comunidades a las que sirve.
El Distrito mantiene su compromiso de brindar un servicio excepcional de agua y aguas residuales,
gestionando al mismo tiempo los recursos de manera transparente y fi scalmente responsable.
Para obtener más información sobre el 70.º aniversario del Distrito, visiteotaywater.gov/es/70th-anniversary y únase a la celebración siguiendo
al Distrito en las redes sociales en @otaywater.
Nota: Si bien el año 2026 marca el 70.º aniversario del Distrito, la
información sobre la calidad del agua que se presenta en este
informe refl eja los datos correspondientes al año calendario 2025.
El Distrito de Agua de Otay le presenta el Informe
de Confi anza al Consumidor. Este informe describe
detalladamente la calidad del agua durante el año
2025, incluyendo el origen del agua, su contenido y
una comparación con los estándares de California.
La información en este informe representa una
pequeña fracción del esfuerzo que hace el Distrito
para asegurar que usted reciba agua potable de
la más alta calidad. El Distrito realiza revisiones
exhaustivas del agua, en uno o más laboratorios
certifi cados por el estado de California, que
incluyen un amplio rango de elementos que tienen
el potencial de degradar la calidad del agua.
Únicamente los compuestos detectados en los
suministros de agua fueron incluidos en este
informe. Se concluyó, como en años anteriores, que
el agua potable cumple con todos losestándares de
salud de la Agencia de Protección Ambiental de los
Estados Unidos (USEPA, por sus siglas en inglés) y los
estándares para el agua potable del estado de
California. El Distrito siempre está vigilante
salvaguardando los suministros de agua, y una vez
más, está orgullosos de informar que su sistema
cumple con todos los estándares de calidad del
agua y nunca ha excedido el nivel máximo de
contaminantes que pudieran impactar su salud.
Informe de confi anza al consumidor
¡El Distrito de Agua de Otay cumple 70 años!
12
Acerca del Distrito de Agua de Otay
El Distrito es un proveedor de servicios públicos de
agua establecido en 1956 por la Legislatura del
Estado de California como un distrito especial. En
la actualidad, el Distrito provee agua a aproximada-
mente 242,000 habitantes dentro de un área de 125
millas cuadradas que incluye las comunidades del
este de Chula Vista, Bonita, Jamul, Spring Valley,
Rancho San Diego, áreas no incorporadas de
El Cajón y La Mesa, y el este de Otay Mesa a lo largo
de la frontera internacional con México.
El Distrito compra el 100% de su agua tratada.
Aproximadamente el 85% de esa agua es importada
del río Colorado y el Proyecto Estatal de Agua de
California, y el otro 15% proviene de suministros locales
incluyendo almacenamientos de agua locales
dentro del condado de San Diego y el océano
Pacífi co a través de la planta desalinizadora de agua
de mar. El Distrito compra agua tratada a través de
la Planta de Tratamiento Robert A. Skinner del Distrito
Metropolitano de Agua del Sur de California (MWD,
por sus siglas en inglés); la Planta de Tratamiento de
Agua Twin Oaks Valley de la San Diego County Water
Authority; la Planta Desalinizadora Claude “Bud”
Lewis de Carlsbad; y la Planta de Tratamiento de
Agua R.M. Levy del Distrito de Agua de Helix.
Evaluaciones de las fuentes de agua
MWD evaluó la vulnerabilidad de su agua
importada en 2020 en el río Colorado y en 2021 en
el Proyecto Estatal de Agua. Estas fuentes de agua
están expuestas a la escorrentía de aguas pluviales,
actividades recreativas, descargas de aguas
residuales, fauna silvestre, incendios y otros factores
relacionados con las cuencas hidrográfi cas que
podrían afectar la calidad del agua. El tratamiento
para eliminar ciertos contaminantes específi cos
puede ser más costoso que las medidas para
proteger el agua en su origen. Es por eso que MWD
y otras agencias de agua invierten recursos para
apoyar programas mejorados de protección de las
cuencas hidrográfi cas. El Distrito de Agua de
Helix evaluó el lago Jennings en marzo de 2021. Esta
evaluación determinó que la calidad del agua del
lago es vulnerable a las aguas residuales, la
recreación, el desarrollo urbanístico, las propiedades
con actividades ecuestres y el uso de pesticidas o
herbicidas. Para obtener más información sobre
las evaluaciones de las fuentes de agua, por favor
comuníquese con el gerente de operaciones del
sistema, Jake Vaclavek, al 619-670-2230.
La participación del público es importante
El Distrito anima a sus clientes a que participen
en las reuniones públicas. La junta directiva
generalmente se reúne el primer miércoles de
cada mes a las 3:30 p. m. en las ofi cinas del Distrito
ubicadas en 2554 Sweetwater Springs Blvd., Spring
Valley, CA 91978. Usted puede asistir en persona
a las juntas directivas, que también se transmiten
en vivo en otaywater.gov. Para la dirección, agendas
e información adicional, por favor llame al
(619) 670-2222 o visite otaywater.gov.
Agua segura
Las fuentes de agua potable (tanto agua del grifo
como embotellada) incluyen los océanos, ríos, lagos,
arroyos, estanques, reservorios, manantiales y pozos.
A medida que el agua viaja sobre la superfi cie de
la tierra o a través del suelo, disuelve residuos de
minerales naturales y en algunos casos, materiales
radioactivos. También puede recoger sustancias
que resultan de la presencia de animales o de
alguna actividad humana.
Se puede esperar que el agua potable, incluyendo
el agua embotellada, contenga pequeñas canti-
dades de algunos contaminantes. La presencia de
contaminantes no indica necesariamente que el
agua representa un riesgo para la salud. Para
asegurar que el agua del grifo es segura para beber,
la USEPA y la Junta Estatal de Control de Recursos
Hídricos han establecido normas que limitan la
cantidad de ciertos contaminantes en el agua que
se proporciona a través de los sistemas públicos de
La Junta Directiva del Distrito de Agua de Otay
Francisco X. Rivera, Presidente .................................División 1
Mark Robak, Vicepresidente ........................................División 5
Delfi na Gonzalez, Tesorera .............................................División 2
Gary Croucher, Director ....................................................División 3
Jose Lopez, Director.................................................................División 4
1313
agua. Las normas de la Administración de Medica-
mentos y Alimentos (FDA, por sus siglas en inglés)
de los Estados Unidos y la ley de California también
establecen límites para los contaminantes en el
agua embotellada los cuales deben proporcionar la
misma protección para la salud pública.
Algunas personas pueden ser más vulnerables
a los contaminantes en el agua potable que la
población en general. Las personas con un sistema
inmunológico debilitado como las personas con
cáncer que reciben quimioterapia, las personas que
han recibido trasplantes de órganos, las personas
con VIH/SIDA u otras enfermedades del sistema
inmunológico, algunas personas de la tercera edad
y los lactantes pueden estar particularmente en
riesgo de infecciones. Estas personas deben hablar
con a su médico sobre el agua potable. Las normas
de la USEPA y los Centros para el Control de Enferme-
dades sobre las medidas adecuadas para disminuir
el riesgo de infección por Cryptosporidium y otros
contaminantes microbianos están disponibles en la
Línea Directa de Agua Potable Segura al (800) 426-4791.
Para obtener más información acerca de los
contaminantes y los posibles efectos en la salud,
por favor llame a la Línea Directa de Agua Potable
de la USEPA al (800) 426-4791 o visite
epa.gov/ground-water-and-drinking-water.
Contaminantes que se pueden presentar en los suministros de agua
• Contaminantes microbianos como virus y
bacterias que pueden provenir de plantas de
tratamiento de aguas residuales, sistemas
sépticos, actividades agrícolas o ganaderas y
la fauna silvestre.
• Contaminantes inorgánicos tales como sales
y metales que pueden surgir naturalmente o
como resultado de la escorrentía de aguas
pluviales; descargas de desechos industriales
o domésticos; producción de aceite y gas;
minería o agricultura.
• Los pesticidas o herbicidas que se pueden
originar de la agricultura, escorrentía de aguas
pluviales y usos residenciales.
• Contaminantes químicos orgánicos incluyendo
los químicos sintéticos y orgánicos volátiles que
son productos derivados de procesos industriales
y la producción de petróleo por lo que también
pueden provenir de estaciones de servicio;
escorrentía de aguas pluviales en zonas urbanas;
aplicación agrícola; y sistemas sépticos.
• Los contaminantes radioactivos que pueden
surgir naturalmente o ser resultado de la
producción de aceite y gas, así como actividades
de minería.
Contaminantes que pueden estar presentes
en los sistemas de plomería del hogar
El plomo, si está presente, puede causar serios
problemas de salud, especialmente en las mujeres
embarazadas y niños pequeños. El plomo en el agua
potable proviene principalmente de materiales y
componentes asociados con las líneas de servicio y
la plomería del hogar. El Distrito es responsable de
proporcionar agua potable de alta calidad, pero no
puede controlar la variedad de materiales que se
utilizan en los componentes del sistema de plomería.
Cuando el agua ha estado asentada
durante varias horas, usted puede minimizar la
contaminación al plomo dejando correr el agua de
la llave durante 30 segundos a dos minutos antes
de utilizarla. Si usted está preocupado acerca del
plomo en su agua, tal vez le interesaría analizar su
agua. Para más información acerca del plomo en
el agua potable, métodos de análisis y pasos para
minimizar la contaminación, comuníquese a la Línea
Directa del Agua Potable Segura al (800) 426-4791 o
visite epa.gov/safewater/lead.
Preocupaciones sobre el plomo en el suministro de agua
Ninguna de las 755 millas de redes de distribución
o líneas de servicio de agua del Distrito está hechas
de plomo. Además, el Distrito está obligado por la
USEPA a recoger muestras de agua en hogares
seleccionados y examinarlas bajo la Norma de
Plomo y Cobre de la USEPA. En el área de servicio
del Distrito, los niveles de plomo están muy por
debajo de los estándares de la USEPA y el 100% de las
muestras de agua arrojaron niveles de plomo muy
por debajo del nivel de acción de 15 partes por mil
millones. Para más información acerca del plomo en
el agua potable, visite epa.gov/safewater/lead.
El Distrito terminó el inventario inicial de líneas de
servicio de plomo requerido por las Revisiones de
14
Para más información acerca de los aparatos para tratar el agua del
hogar que están certifi cados por el estado de California, visite
waterboards.ca.gov/drinking_water/certlic/device/Documents/
aparatos_para_tratar_el_agua.pdf.
Información adicional
El Distrito de Agua de Otay agradece
todos sus comentarios y partici-
pación activa. Si tiene preguntas
sobre la información en este informe
o en los procesos de pruebas, por
favor comuníquese con Jake
Vaclavek, gerente de operaciones
del sistema, al (619) 670-2230 o visite
otaywater.gov. También puede
encontrar información muy útil si
se comunica con las siguientes
agencias:
La Junta Estatal de Control de
Recursos Hídricos
P.O. Box 100
Sacramento, CA 95812-0100
División de Agua Potable:
(916) 449-5577
waterboards.ca.gov/drinking_water
La Agencia de Protección
Ambiental de los Estados Unidos
EPA Offi ce of Ground Water and
Drinking Water
1200 Pennsylvania Avenue, N.W.
(Mail Code 4606M)
Washington, D.C. 20460
Línea Directa del Agua Potable
Segura: (800) 426-4791
water.epa.gov/drink/index.cfm
El Distrito de Agua de Otay
2254 Sweetwater Springs Blvd.
Spring Valley, CA 91978-2004
(619) 670-2222
opinion_form@otaywater.gov
otaywater.gov
1
2
Consejos para mejorar el sabor del agua de la llave
Ponga a enfriar una jarra de agua del grifo
en su refrigerador.
Llene sus botellas reutilizables o termos con agua
helada de una jarra. Esto es bueno para el medio
ambiente y ofrece portabilidad a muy bajo costo.
Instale un sistema de fi ltración de agua en el hogar.
Estos sistemas son prácticos, son fáciles de usar y
mejoran el sabor del agua. Estos aparatos logran los
mismos resultados deseados a una fracción del costo
del precio del agua embotellada.
las Reglas sobre el Plomo y el Cobre de la USEPA. La fecha límite para
los inventarios iniciales fue el 16 de octubre de 2024. Una vez que el
Distrito terminó la revisión de los registros históricos e investigaciones
de campo, determinó que no tiene líneas de servicio de plomo o
galvanizadas que se necesitan reemplazar en su sistema de distribu-
ción. Esto incluye cualquier línea de servicio en propiedad privada o
de clientes. Para solicitar el inventario, envíe un correo electrónico a
opinion_form@otaywater.gov.
La verdad sobre el agua del grifo
Creencias: Los estudios muestran que la mayoría de los consumidores
que beben agua embotellada lo hacen porque disfrutan su sabor o
portabilidad. Otras personas beben agua embotellada porque creen
que es más pura o segura que el agua del grifo.
Verdad: ¿Sabía usted que una botella de agua promedio puede
costar hasta 1,000 veces más que el agua del grifo? A pesar de lo
que su alto costo nos hace creer, se calcula que el 25% o más del
agua embotellada en el mercado es simplemente agua del grifo
envasada.
El agua del grifo está regulada por la USEPA bajo la Ley de Agua
Potable Segura mientras que el agua embotellada está considerada
como alimento y está regulada por la FDA. Si bien algunos
embotelladores podrían exceder los estándares de la FDA, tanto el
agua embotellada como los suministros de agua pública en los
Estados Unidos deben cumplir con estándares similares para el
agua potable segura. Para más información, visite drinktap.org.
Usted tiene opciones: Es muy importante saber que usted tiene otra
opción más económica que el agua embotellada. Aunque el agua
de la llave es segura para beber a muchas personas no les gusta
el sabor. A continuación, le presentamos algunos consejos para
mejorar el sabor del agua y posiblemente ahorrarle dinero.
15
otaywater.gov
Ang pag-uulat na ito ay naglalaman ng mahalagang impormasyon tungkol sa inyong inuming tubig.
Mangyaring makipag-ugnayan sa Otay Water District, 2554 Sweetwater Springs Blvd.,
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2554 Sweetwater Springs Blvd., Spring Valley, CA 91978, (619) 670-2222 để được trợ giúp bằng tiếng
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لتفا بر ای کسب اطلاعات به سازمان آب آشامیدنی Otay Water District که در آدرس 2554 Sweetwater
Springs Blvd., Spring Valley, CA 91978 تماس بگیرید. شماره تلفن (619) 670-2222 است.
يحتوي هذا التقرير على معلومات مهمة عن مياه الشرب. يُرجى التواصل مع Otay Water District
عبر 2554 Sweetwater Springs Blvd., Spring Valley, CA 91978, (619) 670-2222
للحصول على مساعدة باللغة العربية.