10-E
TO: Honorable Mayor and Members of the City Council
ATTENTION: Jeffrey L. Stewart, City Manager
FROM: Len Gorecki, Assistant City Manager/Director of Public Works
SUBJECT: Consideration and possible action to receive and file the Municipal Water System’s 2021 Consumer Confidence Report.
DATE: August 24, 2022
EXECUTIVE SUMMARY
The City of Bellflower annually reports water quality samples taken from the Municipal Water System to the State Water Resources Control Board (SWRCB). The results are reviewed by the SWRCB and summarized in the annual Consumer Confidence Report (CCR).
RECOMMENDATION TO CITY COUNCIL
1) Receive and file the 2021 Consumer Confidence Report; or
2) Alternatively, discuss and take other action related to this item.
FISCAL IMPACT
None.
DISCUSSION
The MWS water is tested regularly for unsafe levels of chemicals, radioactivity and bacteria at the source (the high capacity well) and throughout the distribution system.
Depending on the regulated substance, testing occurs weekly, monthly, quarterly or annually. Although testing is conducted for over 100 individual substances, regulations require the City to only report those found in the water. The 2021 CCR highlights the substances found in the MWS, the levels at which the substances were detected and how those detected levels compare to the required regulatory levels.
Additionally, as the City is required to do, the 2021 CCR was duly noticed in all MWS customer bills and has also been posted on the City’s website since July 1, 2022.
ATTACHMENT
2021 Consumer Confidence Report ................................................................................ 2
BELLFLOWER MUNICIPAL WATER SYSTEM
2021 CONSUMER CONFIDENCE REPORT
Since 1991, California water utilities have been providing information on water served to its consumers. This report is a snapshot of the tap water quality that we provided last year.
Included are details about where your water comes from, how it is tested, what is in it, and how it compares with state and federal limits. We strive to keep you informed about the quality of your water, and to provide a reliable and economic supply that meets all regulatory requirements.
Where
Does My
Tap Water
Come
From?
Your tap
water comes
from local,
deep
groundwater
wells. We
pump
groundwater
from these
wells to
supply our
service area
shown on the adjacent map. The quality of groundwater
delivered to your home is presented in this report.
How is My Drinking Water Tested?
Your drinking water is tested regularly for unsafe levels of chemicals, radioactivity and bacteria at the source and in the distribution system. We test weekly, monthly, quarterly, annually or less often depending on the substance. State and federal laws allow us to test some substances less than once per year because their levels do not change frequently. All water quality tests are conducted by specially trained technicians in state-certified laboratories.
What Are Drinking Water Standards?
The Federal Environmental Protection Agency (EPA) limits the amount of certain substances allowed in tap water. In California, the State Water Resources Control Board (State Water Board) regulates tap water quality by enforcing limits that are at least as stringent as the Federal EPA’s. Historically, California limits are more stringent than the Federal ones.
There are two types of these limits, known as standards.
Primary standards protect you from substances that could potentially affect your health. Secondary standards regulate substances that affect the aesthetic qualities of water.
Regulations set a Maximum Contaminant Level (MCL) for each of the primary and secondary standards. The MCL is the highest level of a substance that is allowed in your drinking water.
Public Health Goals (PHGs) are set by the California
Environmental Protection Agency. PHGs provide more
information on the quality of drinking water to customers, and are similar to their federal counterparts, Maximum Contaminant Level Goals (MCLGs). PHGs and MCLGs are advisory levels that are nonenforceable. Both PHGs and MCLGs are
concentrations of a substance below which there are no known or expected health risks.
How Do I Read the Water Quality Table?
Although we test for over 100 substances, regulations require us to report only those found in your water. The first column of the water quality table lists substances detected in your water.
The next columns list the average concentration and range of concentrations found in your drinking water. Following are columns that list the MCL and PHG or MCLG, if appropriate.
The last column describes the likely sources of these
substances in drinking water.
To review the quality of your drinking water, compare the highest concentration and the MCL. Check for substances greater than the MCL. Exceedence of a primary MCL does not usually
constitute an immediate health threat. Rather, it requires testing the source water more frequently for a short duration. If test results show that the water continues to exceed the MCL, the water must be treated to remove the substance, or the source must be removed from service.
Why Do I See So Much Coverage in the News
About the Quality Of Tap Water?
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 the land or through the ground, it dissolves naturally occurring minerals and, in some cases, radioactive material, and can pick up substances resulting from the presence of animals or from human activity.
Contaminants that may be present in source water include:
• Microbial contaminants, including 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 storm water runoff, industrial or domestic wastewater discharges, oil and gas production, mining or farming;
• Pesticides and herbicides, which may come from a variety of sources such as agriculture, urban storm water runoff, and residential uses;
• Organic chemical contaminants, including synthetic and volatile organic chemicals, that are byproducts of industrial processes and petroleum production, and can also come
from gas stations, urban storm water runoff, and septic systems;
• Radioactive contaminants, which can be naturally
occurring or be the result of oil and gas production and mining activities.
In order to ensure that tap water is safe to drink, the United States Environmental Protection Agency (EPA) and the State Water Resources Control Board (State Water Board) prescribe
regulations that limit the amount of certain contaminants in water provided by public water systems. The State Water Board 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 Federal EPA’s Safe Drinking Water Hotline (1-800-426-4791). You can also get more information on tap water by logging on to these helpful web sites:
• http://water.epa.gov/drink/standards/hascience.cfm
(USEPA’s web site)
• https://www.waterboards.ca.gov/drinking_water/
certlic/drinkingwater/Chemicalcontaminants.html
(State Board Water web site)
If present, elevated levels of lead can cause serious health problem, especially for pregnant women and young children.
Lead in drinking water is primarily from materials and
components associated with services lines and home plumbing.
Bellflower Municipal Water System is responsible for providing high quality drinking water, but cannot control the variety of materials used in plumbing components. When your water has been sitting for several hours, you can minimize the potential for lead exposure by flushing your tap for 30 seconds to 2 minutes before using water for drinking or cooking. If you are concerned about lead in your water, you may wish to have your water tested. Information on lead in drinking water, testing methods, and steps you can take to minimize exposure is available from the Safe Drinking Water Hotline or at http://www.epa.gov/lead .
Should I Take Additional Precautions?
Some people may be more vulnerable to contaminants 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 from infections. These people should seek advice about drinking water from their health care providers. The
EPA/Centers for Disease Control guidelines on appropriate means to lessen the risk of infection of Cryptosporidium and other microbial contaminants are available from the Federal EPA’s Safe Drinking Water Hotline (1-800-426-4791).
Source Water Assessment
A Source Water Assessment was conducted by the California Department of Public Health in August 2001 for each of the four active groundwater wells serving the customers of Bellflower Municipal Water System. A copy of the complete assessment may be viewed at the Department of Public Health, Drinking Water Field Operations Branch, 1449 West Temple Street
Room 202, Los Angeles, California 90026. You
may request a summary of the assessment to be sent to you by contacting the California Department of Public Health at (213) 580-5723. You may also contact the Bellflower Municipal Office at (562) 866-9980.
How Can I Participate in Decisions On Water
Issues That Affect Me?
City Council Meetings are held at 16600 Civic Center Drive, Bellflower, CA every 2nd and 4th Monday of each month at 7:00 pm. You may call the office at (562) 866-9980 for additional information.
How Do I Contact My Water Agency If I Have Any
Questions About Water Quality?
If you have specific questions about your tap water quality, please contact David Herrera at (562) 866-9980.
Some Helpful Water Conservation Tips
• Fix leaky faucets in your home – save up to 20 gallons every day for every leak stopped
• Save between 15 and 50 gallons each time by only
washing full loads of laundry
• Adjust your sprinklers so that water lands on your
lawn/garden, not the sidewalk/driveway – save 500
gallons per month
• Use organic mulch around plants to reduce evaporation – save hundreds of gallons a year
• Use a water-efficient showerhead. They’re inexpensive, easy to install, and can save you up to 750 gallons a
month.
• Visit http://www.epa.gov/watersense for more
information.
Visit us at www.Bellflower.org
SISTEMA DE AGUA MUNICIPAL DE BELLFLOWER
INFORME DE CONFIANZA DEL CONSUMIDOR 2021
Desde 1991, las agencias proveedoras de recursos hidráulicos de California han emitido información sobre el agua que se provee al consumidor. Este informe es una copia del informe sobre la calidad del agua potable que le proveímos el año pasado. Incluímos detalles sobre el origen del agua que toma, cómo se analiza, que contiene, y cómo se compara con los límites estatales y federales. Nos esforzamos por mantenerle informado sobre la calidad de su agua, y proveerle un
abastecimiento confiable y económico que cumpla con todos los requisitios.
¿De Dónde
Proviene el Aqua
que Tomo?
Su agua de la
llave proviene de
agua subterránea
de pozos
profundos locales.
Bombeamos el
agua subterránea
de estos pozos
para abastecer
nuestra área de
servicio que se
muestra en el
mapa adyacente.
Este reporte informa sobre la calidad del agua subterránea que llega a su hogar.
¿Cómo Se Analiza Mi Agua Potable?
El agua que toma se analiza regularmente para asegurarnos de que no halla niveles altos de sustancias químicas, de
radioactividad o de bacteria en el sistema de distribución y en las tomas de servicios. Estos análisis se llevan a cabo semanales, mensuales, trimestrales, anuales o con menos frecuencia, dependiendo de la sustancia analizada. Bajo las leyes estatales y federales, se nos permite analizar algunas sustancias menos frecuentemente que los periodos anuales porque los resultados no cambian. Todas las pruebas de
calidad del agua son realizadas por técnicos especialmente capacitados en laboratorios certificados por el estado.
¿Cuales Son Los Estándares del Agua Potable?
La Agencia de Protección Ambiental Federal (EPA) limita la cantidad de ciertas sustancias permitidas en el agua del grifo.
En California, la Junta de Control de Recursos Hídricos del Estado (State Water Board) regula la calidad del agua de beber siguiendo normas que sean al menos tan estrictas como las normas federales. Históricamente, los límites de California son más rigurosos que los Federales.
Hay dos tipos de estos límites, conocidos como estándares. Los estándares primarios lo protegen de sustancias que
potencialmente podrían afectar su salud. Las normas
secundarias regulan las sustancias que afectan las cualidades estéticas del agua. Las regulaciones establecen un Nivel Máximo de Contaminante (MCL, en inglés) para cada uno de los estándares primarios y secundarios. El MCL es el nivel más alto de una sustancia que se permite en el agua potable.
Las Metas para la Salud Pública (PHGs, en inglés]) son
establecidas por la Agencia de Protección Ambiental de
California (California-EPA). Las PHGs proveen más información con respecto a la calidad del agua, y son similares a los reglamentos federales nombrados Metas para Los Niveles de Contaminante Maximos (MCLGs, en inglés]). Las PHGs y
MCLGs son metas a nivel recomendable. Las PHGs y MCLGs son ambas definidas como los niveles de contaminantes en el agua potable por debajo de los niveles donde no se esperan riesgos a la salud y no son enforzables. Ambos niveles de PHGs y MCLGs son concentraciones de una sustancia en las que no se conocen ni se esperan riesgos para la salud.
¿Cómo Interpreto Mi Informe de Calidad del Agua?
Aunque analizamos más de 100 sustancias, las normas nos requireren que reportemos solo aquellas que se encuentran en su agua. La primer columna en la tabla de la calidad de agua muestra la lista de las sustancias detectadas en su agua. Las siguientes columnas muestran la lista de la concentracion promedio y el rango de concentraciones que se hallan
encontrado en el agua que usted toma. En seguida están las listas de el MCL, el PHG y el MCLG, si estos son apropiados.
La última columna describe las probables fuentes u origen de las sustancias detectadas en el agua potable.
Para revisar la calidad de su agua potable, compare la
concentración más alta y el MCL. Compruebe si hay sustancias superiores al MCL. La superación de un MCL primario no suele constituir una amenaza inmediata para la salud. Más bien, se requiere que se realizen análisis más frecuentemente en el abastecimiento del agua por un corto período. Si los resultados muestran sobrepasar el MCL, el agua debe ser tratada para remover esa sustancia, o el abastecimiento de esta debe decomisionarse.
¿Por Qué Hay Tanta Publicidad Sobre La Calidad Del Agua Potable?
Las fuentes del agua potable (de ambas agua de la llave y agua embotellada) incluye ríos, lagos, arroyos, lagunas, embalses, manantiales, y pozos. Al pasar el agua por la superficie de los suelos o por la tierra, se disuelven minerales que ocurren al natural, y en algunas ocasiones, material radioactivo, al igual que pueden levantar sustancias generadas por la presencia de animales o por actividades humanas.
Entre los contaminantes que puenden existir en las fuentes de agua se incluyen:
• Contaminantes microbiales como los viruses y la bacteria, los que pueden venir de las plantas de tratamiento de
aguas negras, de los sistemas sépticos, de las operaciones de ganadería, y de la vida salvaje;
• Contaminantes inorgánicos, como las sales y los metales, los cuales pueden ocurrir naturalmente o como resultado del desagüe pluvial, industrial, o de alcantarillado,
producción de gas natural y petróleo, minas y agricultura.
• Pesticidas y herbicidas, los cuales pueden venir de varias fuentes tales como la agricultura, del desagüe pluvial, y de usos residenciales;
• Contaminantes de otras sustancias químicas orgánicas, incluyendo químicos orgánicos volátiles y sintéticos que son productos de procesos industriales y de la producción de petróleo, y que pueden provenir de las estaciones de gasolina, desagües pluviales urbanos, y agricultura
applicación y de sistemas sépticos;
• Contaminantes radioactivos, los cuales puenden ocurrir naturalmente o ser el resultado de la producción de
petróleo y gas y actividades mineras.
Para garantizar que el agua del grifo es segura para beber, la Agencia de los Estados Unidos de Protección Ambiental (EPA) y la Junta de Control de Recursos Hídricos del Estado (Consejo de Estado) prescriben regulaciones que limitan la cantidad de ciertos contaminantes en el agua suministrada por los sistemas públicos de agua. El Reglamento del Consejo de Estado
también establecen límites de contaminantes en el agua
embotellada que debe proporcionar la misma protección para la salud pública.
Se puede obtener más información sobre los contaminantes y los posibles efectos en la salud llamando a la línea directa de agua potable segura de la EPA federal (1-800-426-4791).
También puede obtener más información sobre el agua del grifo ingresando a estos útiles sitios web:
• http://water.epa.gov/drink/standards/hascience .
cfm (página federal de la EPA)
• https://www.waterboards.ca.gov/drinking_wa
ter/certlic/drinkingwater/Chemicalcontamina
nts.html (sitio Web estatal)
Si está presente, los niveles elevados de plomo pueden causar problemas de salud graves, sobre todo para mujeres
embarazadas y niños pequeños. El plomo en el agua potable proviene principalmente de materiales y componentes
asociados con líneas de servicios y la plomería del hogar. El Sistema de Agua Municipal de Bellflower es responsable de proporcionar el agua potable de alta calidad, pero no puede controlar la variedad de materiales utilizados en los
componentes de plomería. Cuando el agua ha estado asentada durante varias horas, puede minimizar la posibilidad de exposición al plomo al dejar correr el agua del grifo durante 30 segundos a 2 minutos antes de usar el agua para beber o cocinar. Si le preocupa el plomo en el agua, es posible que desee que la analicen. La información sobre el plomo en el agua potable, los métodos de prueba y los pasos que puede tomar para minimizar la exposición están disponibles en la línea directa de agua potable segura o en http://www.epa.gov/lead .
¿Debería Tomar Otras Precauciones?
Algunas personas pueden ser más vulnerables a los
contaminantes en el agua potable que el público en general. Las personas inmunocomprometidas, como las personas con
cáncer que reciben quimioterapia, las personas que se han sometido a trasplantes de órganos, las personas con VIH/SIDA u otros trastornos del sistema inmunitario, algunos ancianos y los bebés pueden correr un riesgo particular de contraer infecciones. Estas personas deben de consultar a sus
proveedores de salud médica. Las guias de la USEPA/Centros de Control de Enfermedades aconsejan cómo disminuir los riesgos para prevenir la infección de Cryptosporidium y otros contaminantes microbiales están disponibles por teléfono de la EPA encargada de proteger el agua potable al teléfono
(1-800-426-4791).
Valoración de su Abastecimiento de Agua
El Departamento de Salud Pública de California llevó a cabo una Evaluación de la Fuente de Agua en agosto de 2001 para cada uno de los cuatro pozos de agua subterránea activos que atienden a los clientes del Sistema de Agua Municipal de Bellflower. Se puede ver una copia de la evaluación completa en el Departamento de Salud Pública, Subdivisión de
Operaciones de Campo de Agua Potable, 1449 West Temple
Street Room 202, Los Ángeles, California 90026. Usted puede solicitar que se le envíe un resumen de la evaluación por ponerse en contacto con el Departamento de Salud Pública de California al (213) 580-5723. También puede comunicarse con la Oficina Municipal de Bellflower al (562) 866-9980.
¿Cómo Puedo Participar en las Decisiones Sobre Asuntos
Acerca del Agua Que Me Puedan Afectar ?
Las reuniones del Concejo Municipal se llevan a cabo en 16600 Civic Center Drive, Bellflower, CA cada segundo y cuarto lunes de cada mes a las 7:00 p.m. Puede llamar a la oficina al (562) 866-9980 para obtener información adicional.
¿Cómo Me Pongo En Contacto Con Mi Agencia del Agua Si
Tengo Preguntas Sobre La Calidad Del Agua?
Si usted tiene preguntas específicas sobre la calidad de su agua del grifo, por favor póngase en contacto con David Herrera (562) 866-9980.
Algunas extremidades provechosas de la conservación
del agua
• Arreglar los grifos que gotean en su hogar - ahorre hasta 20 galones cada día por cada detenido de fugas
• Ahorre entre 15 y 50 galones cada vez lavado sólo cargas completas de ropa
• Ajuste sus regaderas de modo que el agua caiga en su césped / jardín, no la acera / calzada - ahorre 500 galones por mes
• Utilice pajote orgánico alrededor de las plantas para reducir la evaporación - ahorre cientos de galones por año
• Utilice un cabezal de ducha que ahorre agua. Son
económicos, fáciles de instalar y pueden ahorrarle hasta 750 galones al mes.
• Visite http://www.epa.gov/watersense para obtener más información.
Visítenos en www.Bellflower.org
PRIMARY STANDARDS MONITORED AT THE SOURCE-MANDATED FOR PUBLIC HEALTH
ORGANIC GROUNDWATER PRIMARY MCLG MAJOR SOURCES IN DRINKING WATER CHEMICALS (µg/l) MCL or PHG
INORGANICS Sampled from 2019 to 2021 (b)
Arsenic (µg/l)10 0.004 (c) Erosion of natural deposits; glass/electronics production wastes; runoff Barium (mg/l)1 2 (c) Oil drilling waste and metal refinery discharge; erosion of natural deposits Fluoride (mg/l) 2.0 1 (c) Erosion of natural deposits, water additive that promotes strong teeth Nitrate (mg/l as N)10 10 (c) Runoff and leaching from fertilizer use/septic tanks/sewage, natural erosion RADIOLOGICAL - (pCi/l) (Sampled 2019) (b)
Gross Alpha 15 (e) 0 Erosion of natural deposits
Radium 226 0.05 Erosion of natural deposits
Radium 228 0.019 Erosion of natural deposits
Uranium 20 (e) 0.5 (c) Erosion of natural deposits
PRIMARY STANDARDS MONITORED IN THE DISTRIBUTION SYSTEM - MANDATED FOR PUBLIC HEALTH
DISTRIBUTION SYSTEM PRIMARY MCLG
MICROBIALS MCL or PHG
Total Coliform Bacteria <1 positive 0 Naturally present in the environment Fecal Coliform and E.Coli Bacteria 0 0 Human and animal fecal waste No. of Acute Violations - -
DISTRIBUTION SYSTEM
Turbidity (NTU)TT - Soil runoff
DISINFECTION BY-PRODUCTS DISTRIBUTION SYSTEM PRIMARY MCLG AND DISINFECTION RESIDUALS (f)MCL or PHG
Trihalomethanes-TTHMS (µg/l) 80 - By-product of drinking water chlorination Haloacetic Acids (µg/l) 60 - By-product of drinking water disinfection Total Chlorine Residual (mg/l)4.0 (g) 4.0 (h) Drinking water disinfectant added for treatment
AT THE TAP ACTION LEVEL MCLG
PHYSICAL CONSTITUENTS
24 sites sampled in 2021 AL or PHG
Copper (mg/l)1.3 AL 0.17 (c) Internal corrosion of household plumbing, erosion of natural deposits Lead (µg/l)15 AL 2 (c) Internal corrosion of household plumbing, industrial manufacturer discharges
SECONDARY STANDARDS MONITORED AT THE SOURCE-FOR AESTHETIC PURPOSES Sampled from 2019 to 2021 GROUNDWATER SECONDARY MCLG
MCL or PHG
Non-corrosive - Natural/industrially-influenced balance of hydrogen/carbon/oxygen in water Chloride (mg/l)500 - Runoff/leaching from natural deposits, seawater influence Specific Conductance (uS/cm)1,600 - Substances that form ions when in water, seawater influence Non-corrosive - Natural/industrially-influenced balance of hydrogen/carbon/oxygen in water 50 Runoff/leaching from natural deposits
Odor (threshold odor number)3 -Naturally-occurring organic materials.
Sulfate (mg/l)500 - Runoff/leaching from natural deposits, industrial wastes Total Dissolved Solids (mg/l)1,000 - Runoff/leaching from natural deposits Turbidity (NTU)5 - Soil runoff
SECONDARY STANDARDS MONITORED IN THE DISTRIBUTION SYSTEM-FOR AESTHETIC PURPOSES
GENERAL SECONDARY MCLG
PHYSICAL CONSTITUENTS MCL or PHG
Color (color units) 15 - Naturally-occurring organic materials Odor (threshold odor number) 3 - Naturally-occurring organic materials
ADDITIONAL CHEMICALS OF INTEREST FOOTNOTES
Sampled from 2019 to 2021 GROUNDWATER (a) Over 50 regulated and unregulated organic chemicals were analyzed. None were detected at or above the reporting limit in groundwater or surface water sources.
Alkalinity (mg/l)(b) Indicates dates sampled for groundwater sources only.
Calcium (mg/l)(c) California Public Health Goal (PHG). Other advisory levels listed in this column are 1,4-Dioxane (µg/l)(j)federal Maximum Contaminant Level Goals (MCLGs).
Magnesium (mg/l)(d) Combined Radium 226 + Radium 228 has a Maximum Contaminant Level (MCL) of 5 pCi/L. pH (standard unit)(e) MCL compliance based on 4 consecutive quarters of sampling.
Potassium (mg/l)(f) Running annual average used to calculate average, range, and MCL compliance.
Sodium (mg/l)(g) Maximum Residual Disinfectant Level (MRDL) Total Hardness (mg/l) (h) Maximum Residual Disinfectant Level Goal (MRDLG) (i) 90th percentile from the most recent sampling at selected customer taps.
ABBREVIATIONS
NTU = nephelometric turbidity units pCi/l = picoCuries per liter (a measure of radiation)mg/l = milligrams per liter or parts per million (equivalent to 1 drop in 42 gallons) NA = constituent not analyzed ND = constituent not detected at testing limit ng/l = nanograms per liter or parts per trillion (equivalent to 1 drop in 42,000,000 gallons) SI = saturation index uS/cm = microSiemens per centimeter µg/l = micrograms per liter or parts per billion (equivalent to 1 drop in 42,000 gallons)
DEFINITIONS
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.
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.
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.
Treatment Technique (TT): A required process intended to reduce the level of a contaminant in drinking water.
Regulatory Action Level (AL): The concentration of a contaminant which, if exceeded, triggers treatment or other requirements that a water system must follow.
Primary Drinking Water Standards (PDWS): MCLs and MRDLs for contaminants that affect health along with their monitoring and reporting requirements, and water treatment requirements.
Variances and Exemptions: Department permission to exceed an MCL or not comply with a treatment technique under certain conditions.
0.0 0.0
# OF SITES ABOVE THE AL
DISTRIBUTION SYSTEM
1.2 90%ile
0.4 - 1.9
1.1 590
12.2 BELLFLOWER MUNICIPAL WATER SYSTEM
Results are from the most recent testing performed in accordance with state and federal drinking water regulations 2021 CONSUMER CONFIDENCE REPORT
RANGE OF # POSITIVEAVERAGE # POSITIVE
The State allows monitoring for some contaminants less than once per year because the concentrations of these contaminants do not change frequently.
Some of the data, though representative, are more than one year old.
4.4 0.14
0.30 4.4
0.14 0.30
0.55 AVERAGE RANGE
(a)
5 (d)
(a)
ND
ND - 3.1
0.55 1.6
Secondary Drinking Water Standards (SDWS): MCLs and MRDLs for contaminants that affect the aesthetic qualities of drinking water such as taste, odor, or appearance. Contaminants with SDWSs do not affect the health at the MCL levels.
(j) The Notification Level of 1 ug/l for 1,4-Dioxane was exceeded in five wells in 2021. Some people who use water containing 1,4-dioxane in excess of the Notification Level over many years may experience liver or kidney problems and may have an increased risk of getting cancer, based on studies in laboratory animals.
1.0 AVERAGE
<3.0
1.0 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 reflect the benefits of the use of disinfectants to control microbial contaminants.
230
30 3.7
7.6 <3
230
30 3.7
RANGE
AVERAGE RANGE
75 190.0
11 2.0
75 7.6
11.0 1.8 - 2.2
190
NDND
2.10 ND
35.0 1.1
590
35.0 AVERAGE RANGE
0.1 290
62 ND
0.61 (i)
< 0.1 - 0.35
2.1 0
12.2 ND - 0.2
Aggressiveness Index (corrosivity)
Langlier Index (corrosivity) (SI)
(Last sampled in 2012)
DISTRIBUTION SYSTEM
0 0
0 0 - 0.08
RANGE
0.06 AVERAGE
0.28 (i)
0 0
0.6 - 2.8
RANGE
AVERAGE
Manganese (ug/)11.6 ND - 15
2.2 290.0
62.0 ND
0