HomeMy WebLinkAbout18 - 2016 Water Consumer Confidence ReportTO:
FROM:
CITY OF
NEWPORT BEACH
City Council Staff Report
June 14, 2016
Agenda Item No. 18
HONORABLE MAYOR AND MEMBERS OF THE CITY COUNCIL
George Murdoch, Municipal Operations Director - 949-644-3011,
gmurdoch@newportbeachca.gov
PREPARED BY: Cynthia Owens, Administrative Manager,
cowens(a-)_newportbeachca.gov
PHONE: 949-644-3057
TITLE: 2016 Water Consumer Confidence Report
ABSTRACT:
The City's annual Water Quality Report (Attachment A) is designed to inform our
customers about the quality of their drinking water. The Water Quality Report was
prepared in accordance with both United States Environmental Protection Agency
(USEPA) and State Water Resources Control Board, Division of Drinking Water (DDW)
rules and regulations. The regulations require all drinking water suppliers to provide
their customers with an annual report describing the sources and quality of its water
supply. In all cases, the drinking water containments detected in the City's water are
below the maximum contaminant level thresholds established by USEPA and DDW.
RECOMMENDATION:
a) Determine that the action is exempt from the California Environmental Quality Act
(CEQA) pursuant to Sections 15060(c)(2) and 15060(c)(3) of the CEQA Guidelines
because it will not result in a physical change to the environment, directly or
indirectly;
b) Receive and file.
FUNDING REQUIREMENTS:
There is no fiscal impact related to this item.
DISCUSSION:
Timeline
The Newport Beach 2016 Water Quality Report was prepared over the last several
months and made consistent with surrounding agency reports. The cooperative effort
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2016 Water Consumer Confidence Report
June 14, 2016
Page 2
assures that these reports look and feel similar among agencies in Orange County. In
June the City will have sent 43,138 reports to all customers and residents in Newport
Beach. Copies of the report will be available in public libraries and can be sent to those
who would like additional copies. For more information or questions regarding the
report, persons can contact the Municipal Operations Department at (949) 644-3011.
Testing Requirements
The EPA and DDW require water suppliers to perform contaminant testing on their
drinking water. These results must be reported on a regular basis to these agencies.
The regulatory requirements are based upon the current federal Safe Drinking Water
Act. They are designed to ensure the quality of our drinking water. At the end of each
calendar year, this report is prepared and distributed to our consumers no later than
June 30 of each year. Most of the information shown in the data tables is from samples
collected during 2015; however, some contaminants are not monitored or tested for
each year. The most recent sampling date will be noted in the table for contaminates
not tested for on an annual basis.
In some cases, the City goes beyond what is required by law and will test for
unregulated chemicals that do not have an established drinking water quality standard.
This monitoring helps the USEPA and DDW determine where certain chemicals occur
and whether a new standard needs to be set for those chemicals.
Water Quality Standards
Drinking water standards established by USEPA and DDW set limits for substances that
may affect consumer health or aesthetic qualities of drinking water. The tables in the
attached report detail the chemicals tested from our groundwater and import water
supplies as well as chemicals tested within our distribution system. The following water
quality standards are displayed as:
• Maximum Contaminant Level (MCL): The highest level of a contaminant that is
allowed in drinking water. Primary MCLs are set as close to the Public Health
Goals (PHG's) (or MCL Goals) as is economically and technologically feasible.
• 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.
• Secondary MCLs: Set to protect the odor, taste, and appearance of drinking
water.
• Primary Drinking Water Standard: MCLs for contaminants that affect health along
with their monitoring and reporting requirements and water treatment
requirements.
• Regulatory Action Level (AL): The concentration of a contaminant, which, if
exceeded, triggers treatment or other requirements that a water system must
follow.
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2016 Water Consumer Confidence Report
June 14, 2016
Page 3
Water Quality Goal
In addition to mandatory water quality standards, USEPA and DDW have set voluntary
water quality goals for some contaminants. Water quality goals are often set at such low
levels that they are not achievable in practice and are not directly measurable.
Nevertheless, these goals provide useful guide posts and direction for water
management practices. The charts in the attached report include three types of water
quality goals:
• Maximum Contaminant Level Goal (MCLG): The level of a contaminant in
drinking water below which there is no known or expected risk to health. MCI -Gs
are set by USEPA.
• 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 reflect the benefits of the use of disinfectants to control microbial
contaminants.
• 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.
ENVIRONMENTAL REVIEW:
Staff recommends the City Council find this action is not subject to the California
Environmental Quality Act (CEQA) pursuant to Sections 15060(c)(2) (the activity will not
result in a direct or reasonably foreseeable indirect physical change in the environment)
and 15060(c)(3) (the activity is not a project as defined in Section 15378) of the CEQA
Guidelines, California Code of Regulations, Title 14, Chapter 3, because it has no
potential for resulting in physical change to the environment, directly or indirectly.
NOTICING:
The agenda item has been noticed according to the Brown Act (72 hours in advance of
the meeting at which the City Council considers the item).
ATTACHMENTS:
Attachment A - 2016 Water Quality Report
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Water Quality Report
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Your 2016 Water Quality Report
Since 1990, California public water utilities have been providing an annual
Water Quality Report to their customers. This year's report covers calendar year
2015 drinking water quality testing and reporting.
Your City of Newport Beach Municipal Operations Department (City) vigilantly
safeguards its water supply and, as in years past, the water delivered to your home
Water District (OCWD), which manages the groundwater basin, and the
Metropolitan Water District of Southern California (MWDSC), which supplies
imported treated surface water to the City, test for unregulated chemicals in our
water supply. Unregulated chemical monitoring helps USEPA and DDW
determine where certain chemicals occur and whether new standards need to be
established for those chemicals.
Through drinking water quality testing programs carried out by OCWD for
meets the quality standards required by federal and state regulatory agencies. groundwater, MWDSC for treated surface water and the City for the distribution
The U.S. Environmental Protection Agency (USEPA) and the State Water Resources system, your drinking water is constantly monitored from source to tap for
Control Board, Division of Drinking Water (DDW) are
the agencies responsible for establishing and
enforcing drinking water quality standards.
In some cases, the City goes beyond what is
required by testing for unregulated chemicals that
may have known health risks but do not have drinking
water standards. For example, the Orange County
regulated and unregulated constituents.
The State allows us to monitor for some
contaminants less than once per year because the
concentrations of these contaminants do not change
frequently.
Some of our data, though representative, are
more than one year old.
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The Quality of Your Water is Our Primary Concern
Sources of Supply
Orange County's water supplies are a blend of groundwater
managed by OCWD and water imported from Northern
California and the Colorado River by the Municipal Water
District of Orange County (MWDOC) via the MWDSC.
Groundwater comes from a natural underground aquifer that is
replenished with water from the Santa Ana River, local rainfall
and imported water. The groundwater basin is 350 square miles
and lies beneath north and central Orange County from Irvine to
the Los Angeles County border and from Yorba Linda to the
Pacific Ocean. More than 20 cities and retail water districts
draw from the basin to provide water to homes and businesses.
Orange County's Water Future
For years, Orange County has enjoyed an abundant,
seemingly endless supply of high-quality water. However, as
water demand continues to increase statewide, we must be
even more conscientious about our water supply and maximize the efficient use of
this precious natural resource.
OCWD and MWDOC work cooperatively to evaluate new and innovative water
management and supply development programs, including water reuse and recycling,
wetlands expansion, recharge facility construction, ocean and brackish water
desalination, surface storage and water use efficiency programs. These efforts are
helping to enhance long-term countywide water reliability and water quality.
A healthy water future for Orange County rests on finding and developing new
water supplies, as well as protecting and improving the quality of the water that we
have today. Your local and regional water agencies are committed to making the
necessary investments today in new water management projects to ensure an
abundant and high-quality water supply for our future.
Basic Information About Drinking Water Contaminants
The sources of drinking water (both tap water and bottled water) include rivers,
lakes, streams, ponds, reservoirs, springs and wells. As water travels over the surface
of land or through the layers of the ground it dissolves naturally occurring minerals
and, in some cases, radioactive material, and can pick up substances resulting from
the presence of animal and human activity.
Contaminants that may be present in source water include:
• Microbial contaminants, such as viruses and bacteria, which may come from
sewage treatment plants, septic systems, agricultural livestock operations and
wildlife.
• Inorganic contaminants, such as salts and metals, which can be naturally occurring
or result from urban storm runoff, industrial or domestic wastewater discharges, oil
and gas production, mining and farming.
Radioactive contaminants, which can be naturally occurring or be the result of oil
and gas production or mining activities.
• Pesticides and herbicides, which 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,
which are by-products of industrial processes and petroleum production, and can
also come from gasoline stations, urban stormwater runoff, agricultural application
and septic systems.
In order to ensure that tap water is safe to drink, USEPA and the DDW prescribe
regulations that limit the amount of certain contaminants in water provided by public
V
water systems. DDW regulations also establish limits for
contaminants in bottled water that must provide the same
protection for public health. Drinking 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 USEPA's Safe Drinking
Water Hotline: (800) 426-4791.
About Lead in Tap Water
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 compo-
nents associated with service lines and home plumbing. The City
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 poten-
tial for lead exposure by flushing your tap for
30 seconds to 2 minutes before using water for
drinking or cooking. If you are concerned about
lead in your water, you may wish to have your
water tested.
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.
Immuno -Compromised People
Some people may be more vulnerable to contaminants in drinking water than the
general population. Immuno -compromised people, such as those with cancer who
are undergoing chemotherapy, persons who have had organ transplants, people with
HIV/AIDS or other immune system disorders, some elderly persons and infants can
be particularly at risk from infections. These people should seek advice about drink-
ing water from their health care providers.
The USEPA and the federal Centers for Disease Control guidelines on appropriate
means to lessen the risk of infection by Cryptosporidium and other microbial contami-
nants are available from USEPA's Safe Drinking Water Hotline at (800) 426-4791
between 10 a.m. and 4 p.m. Eastern Time (7 a.m. to 1 p.m. in California).
Questions about your water? Contact us for answers.
For information about this report or your water quality information in general,
please contact the City Municipal Operations Department at (949) 644-3011.
The City of Newport Beach Council meetings begin at 7:00 p.m. on the
second and fourth Tuesday of each month and are open to the public. Meetings
are held at the Council Chambers located at 100 Civic Center Drive, Newport
Beach. Matters from the public are heard at each meeting. Please feel free to
participate in these meetings.
For more information about the health effects of the listed contaminants in
the following tables, call the USEPA hotline at (800) 426-4791.
Important Information the EPA Would Like You to Know
Disinfectants and Disinfection Byproducts
Disinfection of drinking water was one of the major
public health advances in the 20th century. Disinfection
was a major factor in reducing waterborne disease
epidemics caused by pathogenic bacteria and viruses,
and it remains an essential part of drinking water
treatment today.
Chlorine disinfection has almost completely elimi-
nated from our lives the risks of microbial waterborne
diseases. Chlorine is added to your drinking water at the
source of supply (groundwater well or surface water
treatment plant). Enough chlorine is added so that it
does not completely dissipate through the distribution
system pipes. This "residual" chlorine helps to prevent
the growth of bacteria in the pipes that carry drinking
water from the source into your home.
However, chlorine can react with naturally -occurring
materials in the water to form unintended chemical
byproducts, called disinfection byproducts (DBPs),
which may pose health risks. A major challenge is
how to balance the risks from microbial pathogens
and DBPs. It is important to provide protection from
these microbial pathogens while simultaneously
ensuring decreasing health risks from disinfection
byproducts. The Safe Drinking Water Act requires
the USEPA to develop rules to achieve these goals.
Trihalomethanes (THMs) and Haloacetic Acids -
DBPs found in drinking water treated with chlorine. In
1979, the USEPA set the maximum amount of total
THMs allowed in drinking water at 100 parts per billion
as an annual running average. Effective in January 2002,
the Stage 1 Disinfectants / Disinfection Byproducts Rule
lowered the total THM maximum annual average level to
80 parts per billion and added HAAs to the list of
regulated chemicals in drinking water. Your drinking
water complies with the Stage 1 Disinfectants/
Disinfection Byproducts Rule.
Stage 2 of the regulation was finalized by USEPA in
2006, which further controls allowable levels of DBPs in
drinking water without compromising disinfection itself.
A required distribution system evaluation was completed
in 2008 and a Stage 2 monitoring plan has been approved
by DDW. Full Stage 2 compliance began in 2012.
Chloramines
The City imports water from MWDSC which
produces water that is treated with chloramines, a
combination of chlorine and ammonia, as its drinking
water disinfectant. Chloramines are effective killers of
bacteria and other microorganisms that may cause
disease. Chloramines form fewer disinfection by-
products and have no odor when used properly. People
who use kidney dialysis machines may want to take
special precautions and consult their physician for the
appropriate type of water treatment. Customers who
maintain fish ponds, tanks or aquaria should also make
necessary adjustments in water quality treatment, as
these disinfectants are toxic to fish.
For further information or if you have any questions
about chloramines please call (949) 644-3011.
(HAAs) are the most common and most studied
What are Water Quality Standards?
Drinking water standards established by USEPA and DDW set
limits for substances that may affect consumer health or aesthetic
qualities of drinking water. The chart in this report shows the
following types of water quality standards:
• 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.
• 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.
• Secondary MCLs: Set to protect the odor, taste, and appearance
of drinking water.
• Primary Drinking Water Standard: MCLs for contaminants that
affect health along with their monitoring and reporting
requirements and water treatment requirements.
• Regulatory Action Level (AL): The concentration of a
contaminant, which, if exceeded, triggers treatment or other
requirements that a water system must follow.
How are Contaminants Measured?
Water is sampled and tested throughout the year. Contaminants
are measured in:
• parts per million (ppm) or milligrams per liter (mg/L)
• parts per billion (ppb) or micrograms per liter (pg/L)
• parts per trillion (ppt) or nanograms per liter (ng/L)
What is a Water Quality Goal?
In addition to mandatory water quality standards, USEPA and
DDW have set voluntary water quality goals for some contami-
nants. Water quality goals are often set at such low levels that
they are not achievable in practice and are not directly
measurable. Nevertheless, these goals provide useful guideposts
and direction for water management practices. The chart in this
report includes three types of water quality goals:
• 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 USEPA.
• 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 reflect the benefits of
the use of disinfectants to control microbial contaminants.
• 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.
Radiologicals — Tested in 2014
Alpha Radiation (pCi/L) 15 (0) ND ND -4 No Erosion of Natural Deposits
Beta Radiation (DCi/L) 50 (0) 5 4-6 No Decav of Man-made or Natural Deposits
Inorganic Chemicals — Tested in 2015
Aluminum (ppm) 1 0.6 0.155 0.073-0.24 No Treatment Process Residue, Natural Deposits
Arsenic (ppb) 10 0.004 2.3 2.3 No Production Wastes, Natural Deposits
range u.b— 1.2 ppm
mal Level 0.7 ppm
Secondary Standards* — Tested in 2015
Aluminum (ppb) 200* 600 155 73-240 No Treatment Process Residue, Natural Deposits
Chloride (ppm) 500* n/a 100 98-101 No Runoff or Leaching from Natural Deposits
Specific Conductance (pmho/cm)
1,600*
n/a
1,040
1,040
No
Substances that Form Ions in Water
Sulfate (ppm)
500*
n/a
257
253-261
No
Runoff or Leaching from Natural Deposits
Total Dissolved Solids (ppm)
1,000*
n/a
663
660-665
No
Runoff or Leaching from Natural Deposits
Unregulated Chemicals—Tested in 2015
Alkalinity, total as CaCO3 (ppm)
Not Regulated
n/a
126
120-131
n/a
Runoff or Leaching from Natural Deposits
Boron (ppm)
NL = 1
n/a
0.12
0.12
n/a
Runoff or Leaching from Natural Deposits
Calcium (ppm)
Not Regulated
n/a
78
76-80
n/a
Runoff or Leaching from Natural Deposits
Hardness, total as CaCO3 (ppm)
Not Regulated
n/a
303
300-306
n/a
Runoff or Leaching from Natural Deposits
Hardness, total (grains/gallon)
Not Regulated
n/a
18
18
n/a
Runoff or Leaching from Natural Deposits
Magnesium (ppm)
Not Regulated
n/a
27
26-27
n/a
Runoff or Leaching from Natural Deposits
pH (pH units)
Not Regulated
n/a
8.1
8.1
n/a
Hydrogen Ion Concentration
Potassium (ppm)
Not Regulated
n/a
4.9
4.8-5
n/a
Runoff or Leaching from Natural Deposits
Sodium (ppm)
Not Regulated
n/a
101
98-104
n/a
Runoff or Leaching from Natural Deposits
Total Organic Carbon (ppm)
TT
n/a
2.6
2.3-2.7
n/a
Various Natural and Man-made Sources
ppb = parts -per -billion; ppm = parts -per -million; pCi/L = picoCuries per liter; pmho/cm = micromhos per centimeter; ND = not detected;
MCL = Maximum Contaminant Level; (MCLG) = federal MCL Goal; PHG = California Public Health Goal; NL = Notification Level;
n/a = not applicable; TT = treatment technique *Chemical is regulated by a secondary standard.
1) Highest single turbidity measurement 0.3 NTU 0.04 No Soil Runoff
2) Percentage of samples less than 0.3 NTU 95% 100% No Soil Runoff
Turbidity is a measure of the cloudiness of the water, an indication of particulate matter, some of which might include harmful microorganisms. NTU = nephelometric turbidity units
Low turbidity in Metropolitan's treated water is a good indicator of effective filtration. Filtration is called a "treatment technique" (TT).
A treatment technique is a required process intended to reduce the level of chemicals in drinking water that are difficult and sometimes impossible to measure directly.
Chlorate (Dob) 800 n/a 53 41-68 2013
Molypoenum,lotal(ppb) n/a n/a 4./ 4.5-5 2U14
Strontium, Total (ppb) n/a n/a 930 850-1,100 2014
Vanadium, Total (ppb) 50 n/a 2.8 2.3-3 2014
**Hexavalent chromium is regulated with an MCL of 10 ppb but was not detected, based on the detection limit for purposes of reporting of 1 ppb
Hexavalent chromium was included as part of the unregulated chemicals requiring monitoring.
***Total chromium is regulated with an MCL of 50 ppb but was not detected, based on the detection limit for purposes of reporting of 10 ppb.
Total chromium was included as part of the unregulated chemicals requiring monitoring.
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Radiologicals
Gross Alpha (pCi/L) 15 (0) 2.09 ND -4.68 No 2014 Erosion of Natural Deposits
Uranium (pCi/L) 20 0.43 3.03 ND -6.06 No 2014 Erosion of Natural Deposits
Inorganic Chemicals
Arsenic (ppb) 10 0.004 <2 ND -3.7 No 2015 Erosion of Natural Deposits
Fluoride (ppm) 2 1 0.49 0.42-0.6 No 2015 Erosion of Natural Deposits
Nitrate (ppm as N) 10 10 1.64 ND -3.18 No 2015 Fertilizers, Septic Tanks
Nitrate+Nitrite (ppm as N) 10 10 1.64 ND - 3.18 No 2015 Fertilizers, Septic Tanks
Secondary Standards*
Color (color units) 15* n/a 0.75 ND -3 No 2015 Naturally -occurring organic materials
Chloride (ppm) 500* n/a 37.3 12.5-58.9 No 2015 Erosion of Natural Deposits
Specific Conductance (umho/cm) 1,600* n/a 515 252-760 No 2015 Erosion of Natural Deposits
Sulfate (ppm) 500* n/a 70.6 17.8-132 No 2015 Erosion of Natural Deposits
Total Dissolved Solids (ppm) 1000* n/a 317 142-490 No 2015 Erosion of Natural Deposits
Unreaulated Chemicals
Alkalinity, total (ppm as CaCO3) Not Regulated n/a 131 82-163 n/a 2015 Erosion of Natural Deposits
Bicarbonate (ppm as HCC;) Not Requlated n/a 170 100-231 n/a 2015 Erosion of Natural Deposits
Calcium (ppm) Not Regulated n/a 52.2 16-88.3 n/a 2015 Erosion of Natural Deposits
Hardness, total (ppm as CaCO3) Not Regulated n/a 165 46.9-285 n/a 2015 Erosion of Natural Deposits
Magnesium (ppm) Not Regulated n/a 8.55 1.7- 15.7 n/a 2015 Erosion of Natural Deposits
off (units) Not Requlated n/a 7.9 7.7-8 n/a 2015 Aciditv, Hvdrooen Ions
Sodium (ppm) Not Regulated n/a 41.5 33.9-48.9 n/a 2015 Erosion of Natural Deposits
Vanadium (nob) NL = 50 n/a 5 3.3-9.1 n/a 2015 Erosion of Natural Deposits
ppb = parts -per -billion; ppm = parts -per -million; pCi/L = picoCuries per liter; NTU = nephelometric turbidity units; ND = not detected; n/a = not applicable;
<= average is less than the detection limit for reporting purposes; MCL = Maximum Contaminant Level; (MCLG) = federal MCL Goal; PHG = California Public Health Goal
NL = Notification Level; pmho/cm = micromho per centimeter *Contaminant is regulated by a secondary standard to maintain aesthetic qualities (taste, odor, color).
1.4 -Dioxane (ppb) 1 n/a 1.3 0.83-1.8 2014
Chromium, Hexavalent (ppb)** MCL= 10 0.02 0.21 0.21 2014
Strontium, Total (ppb) n/a n/a 470 430-510 2014
Vanadium, Total (ppb) 50 n/a 4.3 4.1 -4.5 2014
**Hexavalent chromium is regulated with an MCL of 10 ppb but was not detected, based on the detection limit for purposes of reporting of 1 ppb.
Hexavalent chromium was included as part of the unregulated chemicals requiring monitoring.
Total Trihalomethanes (ppb) 80 38 9.9-52 No Byproducts of chlorine disinfection
Haloacetic Acids (ppb) 60 16 ND - 20 No Byproducts of chlorine disinfection
Chlorine Residual (ppm) (4/4) 1.8 0.37-2.8 No Disinfectant added for treatment
Aesthetic Quality
Color (color units) 15* <1 ND -2.5 No Naurally-occurring organic materials
Turbidity (NTU) 5* <0.1 ND - 1.24 No Erosion of natural deposits
Eight locations in the distribution system are tested quarterly for total trihalomethanes and haloacetic acids;
thirty locations are tested monthly for color, odor and turbidity; color and odor were not detected in 2014.
MRDL = Maximum Residual Disinfectant Level; MRDLG = Maximum Residual Disinfectant Level Goal *Contaminant is regulated by a secondary standard.
Copper (ppm) 1.3 0.3 0.17 0/30 No Corrosion of household plumbing
Lead (ppb) 15 0.2 ND 0/30 No Corrosion of household plumbing
Everythree years, 30 residences are tested for lead and copper at -the -tap. The most recent set of samples was collected in 2015.
Lead was not detected in any home. Copper was detected in 7 homes; none exceeded the action level.
A regulatory action level is the concentration of a contaminant which, if exceeded, triggers treatment or other requirements that a water system must follow.
Chlorate (ppb) 800 n/a 150 54-270 2014
Chromium, Hexavalent (ppb)** MCL = 10 0.02 0.14 0.03-0.26 2014
Chromium,Total(nob)*** MCL =50 MCLG=100 <0.2 ND -0.2 2013
Strontium, Total Wb) n/a n/a 740 370-1,100 2014
**Hexavalent chromium is regulated with an MCL of 10 ppb but was not detected, based on the detection limit for purposes of reporting of 1 ppb.
Hexavalent chromium was included as part of the unregulated chemicals requiring monitoring.
***Total chromium is regulated with an MCL of 50 ppb but was not detected, based on the detection limit for purposes of reporting of 10 ppb.
Total chromium was included as part of the unregulated chemicals requiring monitoring.
Outdoor Water Conservation Tips
Check your sprinkler system
and correct for overspray and broken sprinkler heads
Saves 12-15 gallons each time you water
Choose drip irrigation
for your trees and shrubs
Saves up to 15 gallons
each time you water
Use a broom instead of a hose
It takes very little time to sweep
and the water savings add up
Water plants in the early morning
Reduces evaporation and ensures
deeper watering
Use organic mulch around trees and plants to reduce
evaporation, improve the soil & prevent weeds
Saves about 20-30 gallons per 1,000 sq. ft.
each time you water
Plant drought -resistant trees and plants
Saves about 30-60 gallons per 1,000 sq. ft.
each time you water
Additional water saving steps and devices are also
available, and some of these are eligible for substantial
rebates. Also, water your garden deeply to promote
healthier, stronger plants. Regular pruning will help
your plants use water more efficiently.
For complete rebate information for these water
saving resources, visit: www.ocwatersmart.com.
Want Additional Information?
There's a wealth of information on the internet about
Drinking Water Quality and water issues in general.
A good place to begin your own research is
the City of Newport Beach website:
www.newportbeachca.gov
Source Water Assessments
Imported (MWDSC) Water Assessment
Every five years, MWDSC is required by DDW to examine
possible sources of drinking water contamination in its State
Water Project and Colorado River source waters.
In 2012, MWDSC submitted to DDW its updated
Watershed Sanitary Surveys for the Colorado River and State
Water Project, which include suggestions for how to better
protect these source waters. Both source waters are exposed
to stormwater runoff, recreational activities, wastewater
discharges, wildlife, fires, and other watershed -related
factors that could affect water quality.
Water from the Colorado River is considered to be most
vulnerable to contamination from recreation, urban/ storm -
water runoff, increasing urbanization in the watershed, and
wastewater. Water supplies from Northern California's State
Water Project are most vulnerable to contamination from
urban/stormwater runoff, wildlife, agriculture, recreation,
and wastewater.
USEPA also requires MWDSC to complete one Source
Water Assessment (SWA) that utilizes information collected
in the watershed sanitary surveys. MWDSC completed its
SWA in December 2002. The SWA is used to evaluate the
vulnerability of water sources to contamination and helps
determine whether more protective measures are needed.
A copy of the most recent summary of either Watershed
Sanitary Survey or the SWA can be obtained by calling
MWDSC at (213) 217-6850.
Groundwater Assessment
An assessment of the drinking water sources for the City
was completed in December 2002. The ground water
sources are considered most vulnerable to the following
activities not associated with detected contaminants: dry
cleaners, gas stations, and known contaminant plumes.
A copy of the complete assessment is available at
Department of Public Health Office of Drinking Water, Santa
Ana District, 28 Civic Center Plaza, Room 325, Santa Ana,
CA 92701. You may request a summary of the assessment by
contacting the City at (949) 718-3412.
18-8
Water Conservation: Be Water Wise All Year Long
Winter storms this year boosted California's largest reservoirs to their
M historically average levels, but other key reservoirs remain critically low
f
as our historic drought keeps its grip on the state. One average season
10'does not overcome the effects of four dry years, and rain and snowfall
� <� ►x"�`k" were well below average in Southern California. Conserving water in our
homes and businesses remains vitally important. There are many areas
within our homes where we can save water, particularly outdoors, where our gardens and
lawns receive almost 60% of all the water we use. To learn more about the drought, or to find
useful tips for how to conserve water, visit:
www.SaveOurWater.com or www.BeWaterWise.com
To learn about programs and devices that can help save water, along with information on
rebates for these water saving resources, visit:
www.00WaterSmart.com
This report contains important information about your drinking water.
Translate it, or speak with someone who understands it.
Este in forme contiene in formaci6n muy importante sabre su agua potable.
Traduzcalo o hoble con alguien que to entiendo bien.
PAPER
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SOYINK
City of Newport Beach
Municipal Operations Department
P.O. Box 1768
100 Civic Center Drive
Newport Beach, California 92658-8915
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Santa Ana, CA
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