ANNUAL WATER
QUALITY
REPORT
Reporting Year 2024
This report contains important information
Presented by about your drinking water. Translate it, or G City of Garden speak with someone who understands it.
Grove
GARDEN GROVE Este informe contiene información importante Báo cáo này chứa thông tin quan trọng sobre su agua potable. Traducirlo, o hablar con về nước uống của bạn. Dịch nć alguien que lo entienda. hoặc nói chuyện với người hiểu nó Your 2025 Water Quality Report
Since 1990, California public water utilities have been providing an annual Water Quality Report to their customers. This years report covers 2024 drinking water quality testing and reporting. The City of Garden Grove Water Services Division vigilantly safe- guards its water supply, and as in years past, the water delivered to your home meets the quality standards required by federal and state regulatory agencies. The U.S. Environmental Protection Agency (U.S. EPA) and the State Water Resources Control Board (SWRCB), 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 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 U.S. EPA and DDW determine where certain chemicals occur and whether new standards need to be established for those chemicals to protect public health.
Through drinking water quality testing programs carried out by OCWD for groundwater, MWDSC for treated surface water, and the City for the water distribution system, your drinking water is constantly monitored from source to tap for 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 a year old.
Source Water Assessment Sources of Supply
Imported (MWDSC) Water Assessment Your drinking water is a blend of Every five years, MWDSC is required by DDW to examine mostly groundwater from 11 wells possible sources of drinking water contamination in its in the Orange County groundwater State Water Project and Colorado River source waters. The basin and surface water imported by most recent surveys for MWDSC's source waters are the MWDSC. Imported water sources are Colorado River Watershed Sanitary Survey—2020 Update the State Water Project from Northern and the State Water Project Watershed Sanitary Survey—2021 California and Update. Water from the Colorado River is considered to be Aqueduct. Your groundwater comes most vulnerable to contamination from recreation, urban/ from a natural underground reservoir stormwater runoff, increasing urbanization in the watershed, managed by the OCWD that stretches from the Prado Dam and wastewater. Water supplies from Northern California's across the northwestern portion of Orange County, excluding State Water Project are most vulnerable to contamination from the communities of Brea and La Habra, and stretching as far urban/stormwater runoff, wildlife, agriculture, recreation, and south as the El Toro Y. wastewater. U.S. EPA also requires MWDSC to complete a
source water assessment (SWA) that uses information collected Last year, as in years past, your tap water met all U.S.
EPA and state drinking water health standards. The City in the watershed sanitary surveys. MWDSC completed its
SWA in December 2002. The SWA is used to evaluate the vigilantly safeguards its water supplies, and once again, we are proud to report that our system has never violated vulnerability of water sources to contamination and helps a maximum contaminant level (MCL) or any other water
determine whether more protective measures are needed. A quality standard. This brochure is a snapshot of last year's copy of the most recent summary of the Watershed Sanitary water quality. Included are details about where your water Surveys or the SWA can be obtained by calling MWDSC at
comes from, what it contains, and how it compares to federal (800) CALL-MWD (800-225-5693).
and state standards.
Groundwater Assessment
An assessment of the drinking water sources for the City was completed in December 2002. The groundwater sources are considered most vulnerable to the following activities associated with contaminants detected in the water supply: We Invite You to Learn More About known contaminant plumes, historic agricultural activities and Your Water's Quality application of fertilizers, and parks. The groundwater sources are considered most vulnerable to the following activities not Hor information about this report, or your water qualit associated with detected contaminants: confirmed leaking in general, please contact the water quality statt a underground storage tanks, dry cleaners, gas stations, and (714) 741-5395. Public Garden Grove City Council photo processing/printing. A copy of the complete assessment meetings are held on the second and fourth Tuesday of is available at State Water Resources Control Board, Division each month at 6:30 p.m. in Council Chambers at the of Drinking Water, 2 MacArthur Place, Suite 150, Santa Ana, Community Meeting Center, 11300 Stanford Avenue.
CA 92707. You may request a summary of the assessment by Contact our city clerk's office, Garden Grove City Hall, contacting the City at (714) 741-5395. 11222 Acacia Parkway, or call (714) 741-5040 for information about city council meetings. Please feel free to participate in these meetings
Quality Water is Our Priority About Lead in Tap Water
ead can cause serious health effects in people of all ages seems. The reality is considerably different. Delivering especially pregnant women, infants (both formula-fed and high-quality drinking water to our customers is a scientific and breastfed), and young children. Lead in drinking water is pri- engineering feat that requires considerable effort and talent to marily from materials and parts used in service lines and home ensure the water is always there, always safe to drink. Because plumbing. Garden Grove is responsible for providing high- tap water is highly regulated by state and federal laws, water quality drinking water and removing lead pipes but cannot treatment and distribution operators must be licensed. control the variety of materials used in the plumbing in your Our licensed water professionals have an understanding of home. Because lead levels may vary over time, lead exposure is possible even when your tap sampling results do not detect a wide range of subjects, including mathematics, biology, lead at one point in time. You can help protect yourself and chemistry, physics, and engineering. Some of the tasks they your family by identitying and removing lead materials within complete on a regular basis include:
vour home plumbing and taking steps to reduce vour family's • Operating and maintaining equipment to purify and risk. Using a filter certified by an American National Standards clarify water; Institute-accredited certifier to reduce lead is effective in reducing lead exposures. Follow the instructions provided with • Monitoring and inspecting machinery, meters, gauges,
the filter to ensure it is used properly. Use only cold water for and operating conditions;
drinking, cooking, and making baby formula. Boiling does not • Conducting tests and inspections on water and remove lead from water. evaluating the results;
Before using tap water for drinking, cooking, or making baby • Documenting and reporting test results and system formula, flush your pipes for several minutes. You can do this operations to regulatory agencies; and by running your tap, taking a shower, or doing laundry or a load of dishes. If you have a lead or galvanized service line • Serving our community through customer support,
requiring replacement, you may need to flush your pipes for a education, and outreach.
longer period. If you are concerned about lead and wish to have So the next time you turn on your faucet, think of the skilled your water tested, contact the Garden Grove water quality staff professionals who stand behind every drop. at (714) 741-5395. Information on lead in drinking water, testing methods, and steps you can take to minimize exposure is available at epa.gov/safewater/lead
Important Health Information
Come people may be more vulnerable to contami-
nants in drinking water than the general population. Lead Service Line Inventory Immunocompromised persons such as persons with cancer
undergoing chemotherapy, persons who have undergone organ Garden Gry has replied he beas. ervice lice in aid transplants, people with HIV/AIDS or other immune system Copper Rule Revisions. The deadline for the LSLI was disorders, some elderly, and infants can be particularly at risk October 16, 2024. Through completing a historical records from infections. These people should seek advice about drinking review and field investigations, Garden Grove has determined water from their health-care providers. U.S. EPA/CDC guide- it has no lead or galvanized service lines requiring replacement lines on appropriate means to lessen the risk of infection by in its distribution system. This includes any privately or Cryptosporidium and other microbial contaminants are avail- customer-owned service lines. For more information, please able from the Safe Drinking Water Horline (1-800-426-4791). visit https://ggcity.org/pw/water-quality. 2024 City of Garden Grove Drinking Water Quality
For nore information about the health effects of the listed contaminancs in the following rables call the U.S. IRA harline at (800) 2024 CITY OF GARDEN GROVE DISTRIBUTION SYSTEM WATER QUALITY
MCL (MRDL/ AVERAGE RANGE OF MCL
MRDLG) AMOUNT DETECTIONS VIOLATION TYPICAL SOURCE OF CONTAMINANT Disinfection Byproducts
Total Trihalomethanes (ppb) 80 ND - 28 No Byproducts of Chlorine Disinfection Haloacetic Acids (ppb) 60 12 ND - 26 No Byproducts of Chlorine Disinfection Chlorine Residual (ppm) (4 / 4) 0.77 0.08 - 2.8 No Disinfectant Added for Treatment Aesthetic Quality
Color (color units) 15* 0.92 ND - 1 No Erosion of Natural Deposits Odor (threshold odor number) 3* 0.92 ND - 1 No Erosion of Natural Deposits Turbidity (ntu) 5* 0.15 ND - 0.32 No Erosion of Natural Deposits Eir an insin i insteade be an ever a rid eatines adul it cris fire bal, catani are sed each my for day. standard to maintain aesthetic qualities (taste, odor, color).
LEAD AND COPPER ACTION LEVELS AT RESIDENTIAL TAPS
ACTION PUBLIC HEALTH 90TH PERCENTILE SITES EXCEEDING AL LEVEL (AL) GOAL VALUE / NUMBER OF SITES VIOLATION? TYPICAL SOURCE OF CONTAMINANT Lead (ppb) 15 0.2 ND<5 0 / 50 No Corrosion of Household Plumbing Copper (ppm) 1.3 0.3 0.11 0 / 50 No Corrosion of Household Plumbing Every three years, at least 50 residences are tested for lead and copper at-the-tap. The most recent set of samples was collected in 2022. Lead was detected above the reporting level in 1 sample, but did not exceed the lead Action Level. Copper was detected above the reporting level in 32 samples, but none of the samples exceeded the copper 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.
Drinking Water Definitions What is a water quality goal? In addition to mandatory water quality standards, U.S. EPA and DDW What are water quality standards? have set voluntary water quality goals for some contaminants. Water Drinking water standards established by U.S. EPA and DDW set limits quality goals are often set at such low levels that they are not achievable for substances that may affect consumer health or aesthetic qualities of n practice and are not directly measurable. Nevertheless, these goals drinking water. provide useful guideposts and direction for water management practices.
The tables in this report show the following types of water quality The tables in this report include three types of water quality goals:
standards:
• Maximum contaminant level goal (MCLG): The level of a • Maximum contaminant level (MCL): The highest level of a contaminant in drinking water below which there is no known or contaminant that is allowed in drinking water. Primary MCLs expected risk to health. MCLGs are set by U.S. EPA. are set as close to the PHGs (or MCLGs) as is economically and technologically feasible. • Maximum residual disinfectant level goal (MRDLG): The level of a drinking water disinfectant below which there is no known or • Maximum residual disinfectant level (MRDL): The highest level expected risk to health. MRDLGs do not reflect the benefits of the of a disinfectant allowed in drinking water. There is convincing use of disinfectants to control microbial contaminants. evidence that addition of a disinfectant is necessary for control of 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. • Secondary MCLs are set to protect the odor, taste, and appearance PHGs are set by the California EPA. of drinking water.
How are contaminants measured?
• Primary drinking water standard: MCLs for contaminants Water is sampled and tested throughout the year. Contaminants are that affect health, along with their monitoring and reporting measured in:
requirements and water treatment requirements.
• Parts per million (ppm) or milligrams per liter (mg/L) • Regulatory action level (AL): The concentration of a contaminant • Parts per billion (ppb) or micrograms per liter (ug/L) that, if exceeded, triggers treatment or other requirements that a • Parts per trillion (ppt) or nanograms per liter (ng/L) water svstem must follow.
2024 CITY OF GARDEN GROVE GROUNDWATER QUALITY
PHG AVERAGE RANGE OF MCL MOST RECENT TYPICAL SOURCE OF
CHEMICAL MCL (MCLG) AMOUNT DETECTIONS • VIOLATION? SAMPLING DATE CONTAMINATION Radiologicals
Gross Alpha Particle Activity (pCi/L) (0) ND ND - 4.8 No 2024 Erosion of Natural Deposits Uranium (pCi/L) 20 0.43 8.2 5.9 - 10 No 2024 Erosion of Natural Deposits Inorganic Chemicals
Arsenic (ppb) 10 0.004 ND ND - 4.7 No 2024 Erosion of Natural Deposits Barium (ppm) 1 2 ND ND - 0.13 No 2024 Erosion of Natural Deposits Chromium, Hexavalent (ppb) 10 0.02 1.3 0.19 - 2 No 2024 Erosion of Natural Deposits; Industrial Discharge
Fluoride (ppm) 2 0.45 0.4 - 0.51 No 2024 Erosion of Natural Deposits Nitrate (ppm as N) 10 10 3.2 0.52 - 4.2 No 2024 Fertilizers, Septic Tanks Nitrate+ Nitrite (ppm as N) 10 10 3.2 0.52 - 4.2 No 2024 Fertilizers, Septic Tanks Perchlorate (ppb) 1.7 ND - 3.4 No 2024 Industrial Discharge Secondary Standards*
Chloride (ppm) 500* n/a 72 26 - 116 No 2024 Erosion of Natural Deposits Odor (threshold odor number) 3* n/a ND ND - 1 No 2024 Erosion of Natural Deposits Specific Conductance (umho/cm) 1,600* n/a 821 513 - 1,040 No 2024 Erosion of Natural Deposits Sulfate (ppm) 500* n/a 113 59 - 144 No 2024 Erosion of Natural Deposits Total Dissolved Solids (ppm) 1,000% n/a 516 300 - 662 No 2024 Erosion of Natural Deposits Turbidity (ntu) 5* n/a ND ND - 0.3 No 2024 Erosion of Natural Deposits Unregulated Chemicals
Alkalinity, total as CaCO3 (ppm) Not Regulated n/a 190 171 - 218 n/a 2024 Erosion of Natural Deposits Boron (ppm) NL = 1 n/a 0.1 ND - 0.25 n/a 2024 Erosion of Natural Deposits Calcium (ppm) Not Regulated n/a 98 59 - 117 n/a 2024 Erosion of Natural Deposits Hardness, total (grains per gallon) Not Regulated n/a 18 11 - 22 n/a 2024 Erosion of Natural Deposits Hardness, total (ppm as CaCO3) Not Regulated n/a 316 189 - 374 n/a 2024 Erosion of Natural Deposits Lithum (ppb)' Not Regulated n/a ND ND - 11 n/a 2024 Sovirus Natural & Man-made Magnesium (ppm) Not Regulated n/a 18 10 - 21 n/a 2024 Erosion of Natural Deposits Perfluorobutanoic acid (ppt) Not Regulated n/a ND ND - 15 n/a 2024 Industrial Discharge Perfluorobutanoic acid (ppt) Not Regulated n/a ND ND - 15 n/a 2024 Industrial Discharge Perfluoro butane sulfonic acid (ppt) NL = 500 n/a ND ND - 3.3 n/a 2024 Industrial Discharge Perfluoro butane sulfonic acid (ppt)' NL = 500 n/a ND ND - 2.7 n/a 2024 Industrial Discharge Perfluoro hexane sulfonic acid (ppt) NL = 3 n/a 3 ND - 11 n/a 2024 Industrial Discharge Perfluoro hexane sulfonic acid (ppt) NL - 3 n/a ND ND - 9.6 n/a 2024 Industrial Discharge Perfluorohexanoic acid (ppt) Not Regulated n/a ND ND - 8.1 n/a 2024 Industrial Discharge Perfluorohexanoic acid (ppt)' Not Regulated n/a ND ND - 5.4 n/a 2024 Industrial Discharge Perfluoro octane sulfonic acid (ppt) NL = 6.5 4.7 ND - 18 n/a 2024 Industrial Discharge Perfluoro octane sulfonic acid (ppt) NL = 6.5 4 ND - 19 n/a 2024 Industrial Discharge Perfluoro octanoic acid (ppt) NL = 5.1 0.007 ND ND - 8.9 n/a 2024 Industrial Discharge Perfluoro octanoic acid (ppt) NL = 5.1 0.007 ND ND - 8.1 n/a 2024 Industrial Discharge Perfluoropentanoic acid (ppt) Not Regulated n/a 3.7 ND - 9.8 n/a 2024 Industrial Discharge Perfluoropentanoic acid (ppt) Not Regulated n/a 2.9 ND - 8.6 n/a 2024 Industrial Discharge pH (pH unit) Not Regulated n/a 7.9 7.7 - 8.1 n/a 2024 Acidity, hydrogen ions Potassium (ppm) Not Regulated n/a 3.9 2.6 - 5.2 2024 Erosion of Natural Deposits Sodium (ppm) Not Regulated n/a 53 35 - 89 n/a 2024 Erosion of Natural Deposits Vanadium, Total (ppb) NL = 50 n/a 1.9 ND - 3.8 n/a 2024 pb = parts-per-billion; pm = parts-per-million; pt = parts per trilion; pCi/L = picouries per liter; ntu = nephelometric turbidity units; ND = not detected; NL = Notification Level; n/a = not applicable; MCL = Maximum Contaminant Level; PHG = California Public Health Goal; umho/cm = micromho per centimeter; *Contaminant is regulated by a secondary standard to maintain aesthetic qualities (taste, odor, color). ' Constituent is part of the Fifth Unregulated Contaminant Rule (UCMR 5) 2024 METROPOLITAN WATER DISTRICT OF SOUTHERN CALIFORNIA TREATED SURFACE WATER
PHG AVERAGE RANGE OF MCL
CONSTITUENT MCL (MCLG) AMOUNT DETECTIONS VIOLATION? TYPICAL SOURCE IN DRINKING WATER Radiologicals - Tested in 2023 and 2024
Gross Alpha Particle Activity (pCi/L) 15 (0) ND ND - 5 No Erosion of Natural Deposits Gross Beta Particle Activity (pCi/L) 50 (0) 4 ND - 5 No Decay of Natural and Man-made Deposits Uranium (pCi/L) 20 0.43 ND - 3 No Erosion of Natural Deposits Inorganic Chemicals - Tested in 2024
Aluminum (ppm) 0.6 ND ND - 0.11 No Treatment Process Residue, Natural Deposits
Barium (ppm) 1 2 0.124 0.124 No Repory Discharge, Erosion of Natural Bromate (ppb) 10 0.1 ND ND - 1.6 No Byproduct of Drinking Water Ozonation Fluoride (ppm) treatment-related 0.7 0.6 - 0.8 No Water Additive for Dental Health Secondary Standards* - Tested in 2024
Aluminum (ppb) 200* 600 ND ND - 110 No Treatment Process Residue, Natural Deposits
Chloride (ppm) 500* n/a 104 93-116 No Runoff or Leaching from Natural Deposits Color (color units) 15* n/a 2 1 - 2 No Runoff or Leaching from Natural Deposits Odor (threshold odor number) 3* n/a 1 No Naturally-occurring Organic Materials Specific Conductance (umho/cm) 1,600* n/a 979 888 - 1,070 No Substances that Form lons in Water Sulfate (ppm)| 500* n/a 224 196 - 253 No Runoff or Leaching from Natural Deposits Total Dissolved Solids (ppm) 1,000* n/a 621 556 - 686 No Runoff or Leaching from Natural Deposits Unregulated Chemicals - Tested in 2024
Alkalinity, total (ppm as CaCO3) Not Regulated n/a 114 105 - 123 n/a Runoff or Leaching from Natural Deposits Boron (ppm) NL = 1 n/a 0.14 0.14 n/a Runoff or Leaching from Natural Deposits Calcium (ppm) Not Regulated n/a 68 58 - 78 n/a Runoff or Leaching from Natural Deposits Hardness, total (ppm as CaCO3) Not Regulated n/a 270 235 - 305 n/a Runoff or Leaching from Natural Deposits Hardness, total (grains/gal) Not Regulated n/a 16 14 - 18 n/a Runoff or Leaching from Natural Deposits Magnesium (ppm) Not Regulated n/a 26 22-29 n/a Runoff or Leaching from Natural Deposits pH (units) Not Regulated n/a 8.2 8.2 n/a Hydrogen lon Concentration Potassium (ppm) Not Regulated n/a 4.9 4.4 - 5.4 n/a Runoff or Leaching from Natural Deposits Sodium (ppm) Not Regulated n/a 103 90 - 116 n/a Runoff or Leaching from Natural Deposits Total Organic Carbon (ppm) TT n/a 2.4 2 - 2.5 n/a Various Natural and Man-made Sources ppb = parts per billion; ppm = parts per million; pCi/L = picoCuries per liter; umho/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.
METROPOLITAN WATER DISTRICT TREATMENT TURBIDITY TT
DIEMER FILTRATION PLANT TECHNIQUE MEASUREMENTS VIOLATION? TYPICAL SOURCE IN DRINKING WATER Turbidity - combined filter effluent
1) Highest single turbidity measurement (NTU) 0.3 0.06 No Soil Runoff 2) Percentage of samples less than or equal to 0.3 NTU 95% 100% No Soil Runoff urbidity is a measure of the cloudiness of the water, an indication of particulate matter, some of which might include harmful microorganisms. Low turbidity Metropolitan's treated water is a good indicator of effective filtration. Filtration is called a "treatment technique" (TT). A treatment technique is a required proces intended to reduce the level of chemicals in drinking water that are difficult and sometimes impossible to measure directly. NTU = nephelometric turbidity units
UNREGULATED CONSTITUENTS REQUIRING MONITORING
AVERAGE RANGE OF
CONSTITUENT NL PHG AMOUNT DETECTIONS MOST RECENT SAMPLING DATE Lithium (ppb) n/a n/a 21 ND - 35 2023
NL = Notification Level
Drinking Water Contaminants
The sources of lin Ang water (both tap water ance 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 occur- ring minerals and, in some cases, radioactive material and can pick up substances resulting from the presence of animals Contaminants that may be present in source water include:
• 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 application, and septic systems.
• Radioactive contaminants that can be naturally occurring or the result of oil and gas production and mining activities.
To ensure that tap water is safe to drink, the U.S. EPA and SWRCB prescribe regulations that limit the amount of certain contaminants in water provided by public water systems. U.S. Food and Drug Administration regulations and California law also establish limits for contaminants in bottled water that 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 U.S. EPA's Safe Drinking Water Hotline (1-800-426-4791).
PFAS Advisory Drinking Water Fluoridation
der-and polyfluoroalkyl substances (PFAS) are a group of Fluoride has been added to U.S. drinking water supplies luman-made chemicals that have been used in variou since 1945 to help prevent tooth decay. As of today, the consumer products since the 1940s due to their resistance to majority of public water suppliers in the country, including heat, water, oils, and stains. These chemicals are prevalent in the MWDSC, fluoridate their water. MWDSC began adding the environment and have been detected in water supplies fluoride in December 2007, complying with all provisions of nationwide. Studies suggest that exposure to certain PFAS may California's fluoridation system requirements. Fluoride levels pose health risks. The U.S. EPA and DDW have established in drinking water are regulated in California and limited to a health-based advisories for PFAS. If PFAS levels exceed these maximum of 2 parts per million (ppm). Some local ground- guidelines, water agencies must notify their governing bodies water supplies naturally contain fluoride, but they are not and take necessary actions, such as removing affected sources supplemented with additional fluoride. from service or implementing treatment solutions. Additional Information To address PFAS contamination, water providers have For more details on water fluoridation, please visit:
conducted testing and taken proactive steps to ensure safe • U.S. Centers for Disease Control and Prevention
drinking water.
(CDC): cdc.gov/fluoridation or (800) 232-4636
Regulatory actions: The U.S. EPA announced final National • State Water Resources Control Board, Division of Primary Drinking Water Regulations for six PFAS in April 2024.
Public water systems are required to monitor these substances, Drinking Water: waterboards.ca.gov/drinking_water/ certlic/drinkingwater/Fluoridation.html
with full reporting and compliance expected by 2027.
For more details on PFAS regulations and water safety, visit: • American Dental Association: ada.org • American Water Works Association: awwa.org
• California State Water Resources Control Board,
Division of Drinking Water: waterboards.ca.gov/pfas For specific inquiries about MWDSC's fluoridation program, • Orange County Water District: ocwd.com/what-we-do/ please contact MWDSC directly at (800) 225-5693. water-quality/pfas
• U.S. EPA: epa.gov/pfas
Cryptosporidium
Cryptosporidium is a microscopic organism that originate. trom animal and human waste and may be present il
Cross Connections
surface water. When ingested, it can cause diarrhea, fever, This and ook (Ced / On sly 1, 2024. More intro and other gastrointestinal symptoms. In 2024 the MWDSC tested for Cryptosporidium and did not detect its presence in mation about the City of Garden Groves Cross-Connection any water after it had been treated. If Cryptosporidium is ever Control (CCC) Plan is available at https://ggcity.org/pw/cross- detected in drinking water, it is effectively removed through connections-faqs. a combination of sedimentation, filtration, and disinfection.
The U.S. EPA and the Centers for Disease Control and
Prevention (CDC) provide guidelines on how to reduce the risk of infection from Cryptosporidium and other microbial contaminants. For more information, contact the U.S. EPA's G City of Garden Grove, Water Services Division Safe Drinking Water Hotline at (800) 426-4791 or visit epa. (714) 741-5395 • https://ggcity.org/pw/water gov/safewater.
GARDEN GROVE