Quality

annualWATER

REPORTING YEAR 2020

REPORT

Presented By
Coral Springs
Improvement District

PWS ID#: 4060291

Quality First

Otesting performed between January 1 and December 31, 2020. As in years past,

nce again, we are pleased to present our annual water quality report covering all

we are committed to delivering the best-quality drinking water possible. To that end, we remain vigilant in meeting the challenges of new regulations, source water protection, water conservation, and community outreach and education while continuing to serve the needs of all our water users. Thank you for allowing us the opportunity to serve you and your
family.
We encourage you to share your thoughts with us on the information contained in this report. After all, well-informed customers are our best allies.

Your Coral Spring Improvement District Board of Supervisors

Dr. Martin Shank,	Chuck Sierra,	Len Okyn,	
President	Secretary	Vice President	

Count on Us

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elivering high-quality drinking water to our customers involves far more than just pushing water through pipes. Water treatment is a complex, time-consuming process. Because tap water is highly regulated by state and federal laws, water treatment plant and system operators must be licensed and are required to commit to long-term, on-the-job training before becoming fully qualified. Our
licensed   water   professionals   have   a

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Where Does Our Water Come From?

We remain vigilant in delivering the best-quality drinking water

basic understanding of a wide range of subjects, including mathematics, biology, chemistry, and physics. Some of the tasks

he source water for the Coral	 		 	                                                   Springs Improvement District
comes from a stable groundwater

they complete on a regular basis include:
Operating	and	maintaining equipment to purify and clarify water;

supply known as the Biscayne Aquifer. This aquifer is the source of fresh water for all of Broward. Because south Florida receives a great deal of rainfall each year, the Biscayne Aquifer is a stable and constant supply of water. CSID pumps water from the Biscayne Aquifer, utilizing 11 wells located throughout the district, to the treatment plant. We have seven wells on standby generator power to ensure we can provide drinking water even during severe storm events when power from FP&L may not be available. CSID continues to invest in improvements in the well field, including rehabilitations, replacement wells (when necessary), and maintenance. The wells are an essential part of our process and where it all begins. The water is pumped from the wells to the reverse osmosis water treatment plant, where it is treated and distributed.

Monitoring and inspecting machinery, meters, gauges, and operating conditions;
Conducting tests and inspections on water and evaluating the results;
Maintaining optimal water chemistry;
Applying data to formulas that determine treatment requirements, flow levels, and concentration levels;
Documenting and reporting test results and system operations to regulatory agencies; and
Serving our community through customer support, education, and outreach.

Lead in Home Plumbing

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f present, elevated levels of lead can cause serious health problems, especially for pregnant women and young children.

Lead in drinking water is primarily from materials and components associated with service lines and home plumbing. We are responsible for providing high-quality drinking water, but we cannot control the variety of materials used in plumbing components. When your water has been sitting for several hours, you can minimize the potential for lead exposure by flushing your tap for 30 seconds to 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 from the Safe Drinking Water Hotline at (800) 426-4791 or at www. epa.gov/safewater/lead.

So, the next time you turn on your faucet, think of the skilled professionals who stand behind each drop.

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Community Participation
esidents are invited to attend the monthly board meetings with your comments and ideas about anything relating to our utility. We meet the third Monday of each month beginning at 4:00 p.m. at the Coral Springs Improvement District, Administration Building Board Room, 10300 N.W. 11th Manor, Coral Springs. The meeting schedule is on our
website at www.csidfl.org under the About Us tab; dates may change due to holidays.

QUESTIONS?

For

more	information

about this report, or for any questions relating to your drinking water, please call Christian McShea, Chief of Water Operations, at (954) 796-6665, or email christianm@csidfl.org. You can also visit our website, www.csidfl.org, which contains helpful information about our utility.

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Substances That Could Be in Water
he 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, 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 stormwater 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 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 gas stations, urban stormwater 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
U.S. Environmental Protection Agency (U.S. EPA) prescribes regulations that limit the amount of certain contaminants in water provided by public water systems. The Food and Drug Administration (FDA) regulations establish limits for contaminants in bottled water, which 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 the 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 at (800) 426-4791.

Source Water Assessment

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n 2020 the Florida Department of Environmental Protection (FDEP) performed
a source water assessment on our system. The assessment was conducted to provide information about any potential sources of contamination in the vicinity of our wells. According to the assessment, there were seven potential sources of contamination identified. Six of the eight were ranked at a low susceptibility level, and two were considered moderate. The assessment results are available on the FDEP Source Water Assessment and Protection Program website at www.dep. state.fl.us/swapp.

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Important Health Information
ome 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 may be particularly at risk from infections. These people should seek advice about drinking water from their health care providers. The U.S. EPA/
CDC (Centers for Disease Control and Prevention) guidelines on appropriate means to lessen the risk of infection by Cryptosporidium and other microbial contaminants are available from the Safe Drinking Water Hotline at (800) 426-4791 or http://water.epa.gov/ drink/hotline.

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The Coral Springs Improvement District Water Treatment Process
e have been operating our reverse osmosis process for over seven years now. This process is a low-pressure, reverse osmosis system where we purify water using cross-linked, fully aromatic polyamide composite membranes. This design and process provide the greatest level of protection for the public water supply. In fact, we became one of only a few
certified 4-log virus inactivation facilities in Broward County starting in 2016.
Our source water comes from the Biscayne Aquifer and is pumped to the plant from 11 wells throughout the district. Once the water arrives at the plant, it flows through three stainless steel sand strainers. Each strainer is equipped with six stainless steel filter elements that filter out any particulate larger than 50 microns. (The eye of an average needle is 1,230 microns.) After leaving the sand strainers, the water flows to the next pretreatment process, known as cartridge filtration. Just before the water flows to the cartridge filters, it is chemically conditioned to optimize treatment. There are three cartridge filter vessels, each containing 176 individual filter elements that filter out impurities that are 5 microns or larger. These three cartridge filter vessels are capable of processing a total flow rate of over 10 million gallons per day of pretreated water.
Next, the water flows to the front of the membrane vessels, where 250-horsepower feed pumps increase the system pressure to around 100 pounds per square inch (psi). This pressure provides the driving force needed to overcome the natural osmotic pressure of the water and allow the reverse osmosis process to begin. As this process continues, membrane elements inside the vessels separate out impurities down to 0.0005 micron to produce water with little or no physical contamination. Each membrane element measures 8 inches in diameter and 40 inches long. There are 7 elements in each vessel and 50 vessels per process train, or 350 elements per train. The plant is equipped with three process trains that are capable of producing a total of 6.75 million gallons of potable water per day. This treated water is known as permeate. We bypass 10 to 15 percent of our water to blend with our permeate in order to raise the alkalinity and hardness to desirable drinking water standards. This stream receives all the same pre- and post-treatment benefits as the water that is treated through the membranes.
Our plant is permitted to produce up to 7.4 million gallons of potable drinking water per day but is capable of producing more, which can be done to help out neighboring cities in times of need with proper notification to our governing agencies.
Since the reverse osmosis process does not remove dissolved gases, such as hydrogen sulfide and carbon dioxide, the permeate and bypass water flow upward to the next process, known as degasification. Water flows downward through these towers through a type of filter media resembling whiffle balls. Air is forced upward through the cascading water to remove any volatile gases. The water then flows into a transfer pump station. As the water is pumped out of the transfer pump station and to the ground storage tanks, it is chemically treated with sodium hypochlorite, orthophosphate, sodium hydroxide, fluoride, and ammonium sulfate to provide disinfection and stabilization. The onsite water storage tanks allow contact time for stabilization to occur. The water is then pumped via our eight high-service pumps out to the distribution system and to our residents’ homes.

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Unregulated Contaminant Monitoring
e have been monitoring for unregulated contaminants (UCs) as part of a study to help the U.S. EPA determine the occurrence in drinking

UNREGULATED CONTAMINANT MONITORING RULE - PART 4 (UCMR4)

water of UCs and whether these contaminants need to be regulated. At present, no health standards (for example, maximum contaminant levels) have been established for UCs. However, we are required to publish the analytical results of our UC monitoring in our annual water quality report. If you would like more information on the U.S. EPA’s Unregulated Contaminant Monitoring Rule, please call the Safe Drinking Water Hotline at (800) 426-4791.

CONTAMINANT AND UNIT OF	DATES OF SAMPLING	LEVEL	RANGE OF	
MEASUREMENT	(MO./YR.)	DETECTED	RESULTS	
HAA5 (ppb)	2019	3.9	3.7–4.1	
HAA6Br (ppb)	2019	0.82	0.75–0.89	
HAA9 (ppb)	2019	4.75	4.6–4.9	
Bromide (ppb)	2019	138	NA	
Total Organic Carbon (ppb)	2019	6,460	NA	

Definitions
90th %ile: The levels reported for lead and copper represent the 90th percentile of the total number of sites tested. The 90th percentile is equal to or greater than 90% of our lead and copper detections.
AL (Action Level): The concentration of a contaminant which, if exceeded, triggers treatment or other requirements which a water system must follow.
MCL (Maximum Contaminant Level): The highest level of a contaminant that is allowed in drinking water. MCLs are set as close to the MCLGs as feasible using the best available treatment technology.
MCLG (Maximum Contaminant Level Goal): The level of a contaminant in drinking water below which there is
no known or expected risk to health. MCLGs allow for a margin of safety.
MRDL (Maximum Residual Disinfectant Level): 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.
MRDLG (Maximum Residual Disinfectant Level Goal): 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.
NA: Not applicable
ppb (parts per billion): One part substance per billion parts water (or micrograms per liter).
ppm (parts per million): One part substance per million parts water (or milligrams per liter).
TT (Treatment Technique): A required process intended to reduce the level of a contaminant in drinking water.

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Test Results
ur water is monitored for many different kinds of substances on a very strict sampling schedule, and the water we deliver must meet specific health standards. Here, we only show those substances that were detected in our water (a complete list of all our analytical results is available upon request). Remember that detecting a substance does not mean the water is unsafe to drink; our goal is to keep all detects below their respective
maximum allowed levels.

PRIMARY REGULATED CONTAMINANTS

The state recommends monitoring for certain substances less than once per year because the concentrations of these substances do not change frequently. In these cases, the most recent sample data are included, along with the year in which the sample was taken.

Inorganic Contaminants	
CONTAMINANT AND UNIT	DATES OF SAMPLING    MCL VIOLATION	LEVEL	RANGE OF	
OF MEASUREMENT	(MO./YR.)	(YES/NO)	DETECTED	RESULTS	MCLG	MCL	LIKELY SOURCE OF CONTAMINATION	
Barium (ppm)	2/20/20	No	0.00228	NA	2	2	Discharge of drilling wastes; discharge from metal	
							refineries; erosion of natural deposits	
Fluoride (ppm)	1/1/20–12/31/20	No	0.75	0.65–0.86	4	4.0	Erosion of natural deposits; discharge from fertilizer and	
							aluminum factories; water additive that promotes strong	
							teeth when at the optimum level of 0.7 ppm	
Sodium (ppm)	2/20/20	No	12.3	NA	NA	160	Saltwater intrusion, leaching from soil	

CONTAMINANT AND UNIT	DATES OF SAMPLING	MCL VIOLATION	LEVEL	RANGE OF	
OF MEASUREMENT	(MO./YR.)	(YES/NO)	DETECTED	RESULTS	MRDLG	MRDL	LIKELY SOURCE OF CONTAMINATION	
Chloramines (ppm)	1/2020–12/2020	No	3.02	1.8–3.9	4	4.0	Water additive used to control microbes	

CONTAMINANT AND UNIT OF	DATES OF SAMPLING    MCL VIOLATION	LEVEL	RANGE OF	
MEASUREMENT	(MO./YR.)	(YES/NO)	DETECTED	RESULTS	MCLG	MCL	LIKELY SOURCE OF CONTAMINATION	
Haloacetic Acids (five) [HAA5] (ppb)	1/2020–12/2020	No	3.65	2.2–29	NA	60	By-product of drinking water disinfection	
TTHM [Total trihalomethanes]1 (ppb)	1/2020–12/2020	No	14.925	4.6–150	NA	80	By-product of drinking water disinfection	

STAGE 1 DISINFECTANTS AND DISINFECTION BY-PRODUCTS

STAGE 2 DISINFECTANTS AND DISINFECTION BY-PRODUCTS

*The sample site with the high TTHM value of 150 ppb was resampled within two weeks and the result was only 4.7 ppb.
Lead and Copper (Tap water samples were collected from sites throughout the community)	
DATES OF	AL	90TH	NO. OF SAMPLING		AL		
CONTAMINANT AND UNIT	SAMPLING	EXCEEDANCE	PERCENTILE	SITES EXCEEDING		(ACTION	
OF MEASUREMENT	(MO./YR.)	(YES/NO)	RESULT	THE AL	MCLG	LEVEL)	LIKELY SOURCE OF CONTAMINATION	
Copper [tap water] (ppm)	6/2020	No	0.087	0	1.3	1.3	Corrosion of household plumbing systems; erosion	
							of natural deposits; leaching from wood preservatives	
Lead [tap water] (ppb)	6/2020	No	0.90	0	0	15	Corrosion of household plumbing systems, erosion	
							of natural deposits	
1 Some people who drink water containing trihalomethanes in excess of the MCL over many years may experience problems with their liver, kidneys, or central nervous system and may have an increased risk of getting cancer.