Water Quality Report pdf version

2017 ANNUAL WATERQUALITY REPORTPWS ID#: FL 3050223Claude H. Dyal Water Treatment Plant351 Shearer Blvd., Cocoa, FL 32922

A Message From the Director opportunity, with this Water Quality Report, to present to you informa on about our excellent water and the servicesThis 2017 Water Quality Report contains detailed that we provide.informa on about your drinking water, the steps we take toensure its safety, the results of the sampling and tes ng we Cocoa provides water to over 82,000 customers in Cocoa,conducted between January 1, 2017 and December 31, Rockledge, Port St. John, Merri Island, Cape Canaveral,2017, and how we are working to conserve this resource for Cocoa Beach, Suntree/Viera, Patrick AFB, and the Kennedyfuture genera ons. Space Center, serving a popula on of about 250,000.At the Cocoa U li es Department, our top priority is The Cocoa U li es Department is dedicated to providing ourdelivering clean, safe, great-tas ng water to our customers. customers with premium drinking water and professionalOur primary source of water is from the Intermediate and service. Our facili es are staffed with state-cer fiedFloridan Aquifers, a well-protected ground water source professionals to ensure that your drinking water is reliablelocated hundreds of feet underground. and meets all safe drinking water standards.We supplement our groundwater supply with surface water As part of our commitment to excellence, we performdrawn from the Taylor Creek Reservoir. The Taylor Creek con nuous tes ng and monitoring of your drinking waterReservoir is located three miles from the Claude H. Dyal from our raw water supply, through the treatment processWater Treatment Plant. It was constructed in the 1960s as at our Dyal Water Treatment Plant, un l it's delivered to yourpart of the original federal Central and Southern Florida home.Flood Control Project. The Cocoa U li es Department values the trust you put in usOur state cer fied water lab conducts thousands of every day and we are grateful for your support throughoutchemical and bacteriological water quality tests each year. the year.Our lab technicians test for more than 135 regulated andunregulated substances including lead and copper. Asummary of that tes ng is included in this report.The Cocoa U li es Department is commi ed and seriousabout the work we do to provide safe, high-quality, great-tas ng water, 24 hours a day, 365 days a year, today and forgenera ons to come.John A. Walsh, P.E.U li es DirectorCocoa WaterThis water quality report, also known as a ConsumerConfidence Report, is produced annually in accordance withboth federal and state requirements.This report will be mailed to customers only upon request bycalling (321) 433-8705. It is also available at Cocoa City Hall,65 Stone St., Cocoa, FL 32922 and all public libraries in ourwater service area. For more informa on about this report,for ques ons rela ng to your drinking water, or foraddi onal hard copies of this report, please viewwww.cocoafl.org/waterqualityreport, call (321) 433-8705,or email ddowns@cocoafl.org. You can obtain addi onalinforma on from the EPA at their Safe Drinking WaterHotline (800-426-4791).Whenever you enjoy a cool, refreshing drink of Cocoa'sgreat-tas ng water, you can feel secure that Cocoa's watermeets all federal and state requirements for drinking water.The Cocoa U li es Department is pleased to have the1 2017 City of Cocoa Water Quality Report -9173-

Sources & Treatment The surface water treatment plant was built alongside the exis ng ground water treatment plant and came on-line inGroundwater Treatment October 1999. Water from both processes is blended and then pumped into storage tanks before it is sent into theCocoa's primary water source is groundwater pumped from distribu on system and to your home or business.the Intermediate and Floridan Aquifers. Cocoa has suppliedcentral Brevard County with high quality drinking water Aquifer Storage and Recovery (ASR) Wellssince 1957. Our drinking water system processed just over7.65 billion gallons of water last year, with a peak flow of Cocoa has 10 ASR wells at the Dyal Water Treatment Plant26.44 million gallons per day (MGD) during the month of for the storage of finished, treated water. This is a system ofSeptember. The Average daily flow was 20.94 MGD during wells that stores finished water safely underground. During2017. In addi on to groundwater, Cocoa supplements its periods of high demand this high quality water can bewater supply with aquifer storage and recovery wells, and pumped to the head of the plant or to the ground storagesurface water from the Taylor Creek Reservoir. In 2017, The tanks.Dyal Water Treatment plant treated 6.95 billion gallons ofgroundwater and 0.72 billion gallons of surface water. Source Water AssessmentGroundwater treatment begins when raw water from our The Source Water Assessment Program provides localwellfields is pumped to our water treatment facility, the leaders, water suppliers, and ci zens with the informa onClaude H. Dyal Water Treatment Plant. The plant operates 24 necessary to protect public drinking water sources fromhours a day, seven days a week to meet the needs of our contamina on.water customers. Ground WaterGround water enters the plant where chlorine, lime, sodaash, and coagulant are added to remove hardness and In 2017 the Florida Department of Environmental Protec onsuspended solids. Fluoride is then added to the water in performed a Source Water Assessment on our system. Theaccordance with the Environmental Protec on assessment was conducted to provide informa on aboutAgency/Center For Disease Control guidelines. Carbondioxide is added to reduce the pH and to stabilize the water. Ground water enters the plant where chlorine, lime, soda ash,Chloramina on is used to disinfect the water a er it passes and coagulant are added to remove hardness and suspendedthrough filters containing sand and anthracite coal and solids.enters the clearwell. Turbidity (cloudiness) is constantlymeasured at each filter.Surface Water TreatmentThe Dyal WTP is unusual for Central Florida because it cantreat both ground and surface water. Water from the TaylorCreek Reservoir is a supplemental source for Cocoa's watersupply.Surface water requires a different type of treatment. A ersurface water enters the plant, ferric sulfate, hydrated lime,and a polymer are added. Ozone is injected into clarifiedwater for disinfec on, taste and odor removal. A er addingozone, the water is treated with hydrated lime, carbondioxide, chlorine and ammonia before passing through sandand anthracite coal filters. Turbidity is constantly measuredat each filter.--18420-- 2017 City of Cocoa Water Quality Report 2

any poten al sources of contamina on in the vicinity ofour wells. There are 27 poten al sources of contamina oniden fied for this system with low to moderatesuscep bility levels. The assessment results are availableon the FDEP Source Water Assessment and Protec onProgram website at h ps://fldep.dep.state.fl.us/swapp/ orthey can be obtained by contac ng theConserva on/Public Rela ons Officer at (321) 433-8705, oremailing ddowns@cocoafl.org.Surface Water receives regular investment and is con nually improved.In 2017 the Florida Department of Environmental Protec on The Cocoa U li es Department's Capital Improvementperformed a Source Water Assessment on our system. The Program (CIP) was developed to provide a perspec ve of theassessment was conducted to provide informa on about any u lity's long-term capital needs. The CIP is a planningpoten al sources of contamina on in the vicinity of our process used to iden fy, quan fy and assess capitalsurface water intakes. The surface water system is improvement needs over a five-year me period.considered to be at high risk because of the many poten alsources of contamina on present in the assessment area. The focus of the CIP is to preserve and improve the waterThe assessment results are available on the FDEP Source system infrastructure while ensuring the efficient use ofWater Assessment and Protec on Program website at public funds. The following are some recent or ongoing CIPh ps://fldep.dep.state.fl.us/swapp/ or they can be obtained projects:by contac ng the Conserva on/Public Rela ons Officer at(321) 433-8705, or emailing ddowns@cocoafl.org. Groundwater/Surfacewater Clearwell Separa onClean, safe drinking water involves Project scope: Separa on of the groundwater andsustained investment surfacewater clearwells at the Dyal Water Treatment Plant to increase storage capacity and improve opera onal flexibilityCocoa Utilities Department Capital and efficiency. This $11.4 million project is on schedule and on budget. The es mated comple on of this project is lateImprovement Program spring 2018.No resource is more cri cal than water and the infrastructure Dyal WTP Surface Water Filter Coversthat delivers it. We cannot exist without water systems thatsafely and reliably deliver water to our taps. Of all the Project Scope: Addi on of aluminum roof canopy overinfrastructure that we, as a community must maintain, none exis ng surface water filters to improve disinfec onis more important than a reliable water network that performance and raise surface water treatment capability to 12 million gallons per day. This project is scheduled to start in3D image of the pump room for the new clearwell located at the 2019.Dyal Water Treatment Plant. East Peachtree Street Watermain Improvements Project scope: Replacement of approximately 2,200 linear feet of 6” cast iron and asbestos cement pipe with new 8” duc le iron pipe along East Peachtree Street to improve water quality and fire flow. This approximately $1,290,000 project was completed at the end of September 2017. Florida Ave Distribu on System Improvements Project scope: This project involved the replacement of the exis ng 6-inch water mains and associated valves and fire hydrants along Florida Avenue from the connec on just south of King Street (SR-520) to Rosa L. Jones Boulevard in Cocoa. Most of the 6-inch pipe was upsized to 8-inch diameter pipelines to improve hydraulics, water quality and fire flow. This $1,915,957 project was completed in3 2017 City of Cocoa Water Quality Report -7391-

Clean, safe drinking water involves at (321) 433-8488 to confirm day, me, and loca on of thecon nuous monitoring mee ng.Water Quality The U li es Advisory Board meets quarterly (January/April/July/October), on the fourth Wednesday atCon nuing Our Commitment 6:00 p.m. in the City Council Chambers. The U li es Advisory Board advises the City Council on ma ers rela ng to u lityCocoa's Claude H. Dyal Water Treatment Plant rou nely subjects. Please contact the City Clerk at (321) 433-8488 tomonitors for contaminants in your drinking water according confirm day, me, and loca on of the mee ng.to Federal and State Laws, rules, and regula ons. This reportis based on the results of our monitoring for the period of Ques ons?January 1, 2017 through December 31, 2017. Any data thatwas obtained before January 1, 2017 and presented in this For informa on about water quality or ques ons about thisreport are from the most recent tes ng performed in report, or to obtain paper copies of this report call (321) 433-accordance with the laws, rules, and regula ons. 8705 or email ddowns@cocoafl.org.Our NELAC (Na onal Environmental Laboratory Water tes ng documents the quality ofAccredita on Conference) cer fied laboratory analyzes your drinking waterwater quality throughout the treatment process anddistribu on system to ensure safe drinking water is delivered Water Quality Testing Resultsto our customers. We remain vigilant in mee ng thechallenges of source water protec on, water conserva on, Defini onsand community educa on while con nuing to serve theneeds of all of our water users. In the following table you may find unfamiliar terms and abbrevia ons. To help you be er understand these termsCommunity Involvement Is Encouraged we've provided the following defini ons:Interested customers are welcome to a end Cocoa's Maximum Contaminant Level or MCL: The highest level of aregularly scheduled Council mee ngs held on the second and contaminant that is allowed in drinking water. MCLs are set asfourth Tuesday of every month. Please contact the City Clerk close to the MCLGs as feasible using the best available treatment technology.--18420-- 2017 City of Cocoa Water Quality Report 4

Defini ons (cont.) 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 toMaximum Contaminant Level Goal or MCLG: The level of a contaminant control microbial contaminants.in drinking water below which there is no known or expected risk to health. Million fibers per liter (MFL): Measure of the presence of asbestos fibersMCLGs allow for a margin of safety. that are longer than 10 micrometers.Ac on Level (AL): The concentra on of a contaminant which, if exceeded, Millirem per year (mrem/yr): Measure of radia on absorbed by the body.triggers treatment or other requirements that a water system must follow. Nephelometric Turbidity Unit (NTU): Measure of the clarity of water.Ini al Distribu on System Evalua on (IDSE): An important part of the Turbidity in excess of 5 NTU is just no ceable to the average person.Stage 2 Disinfec on By-Products Rule (DBPR). The IDSE is a one- me “ND”: Means not detected and indicates that the substance was not foundstudy conducted by water systems to iden fy distribu on system loca ons by laboratory analysis.with high concentra ons of trihalomethanes (THMs) and haloace c acids Parts per billion (ppb) or Micrograms per liter (µg/l): One part by weight(HAAs). Water systems will use results from the IDSE, in conjunc on with of analyte to 1 billion parts by weight of the water sample.their Stage 1 DBPR compliance monitoring data, to select compliance Parts per million (ppm) or Milligrams per liter (mg/l): One part by weightmonitoring loca ons for the Stage 2 DBPR. of analyte to 1 million parts by weight of the water sample.Loca onal Running Annual Average (LRAA): The average of sample Parts per quadrillion (ppq) or Picograms per liter (picograms/l): One partanaly cal results for samples taken at a par cular monitoring loca on by weight of analyte to 1 quadrillion parts by weight of the water sample.during the previous four calendar quarters. Parts per trillion (ppt) or Nanograms per liter (nanograms/l): One part byMaximum residual disinfectant level or MRDL: The highest level of a weight of analyte to 1 trillion parts by weight of the water sample.disinfectant allowed in drinking water. There is convincing evidence that Picocurie per liter (pCi/L): Measure of the radioac vity in water.addi on of a disinfectant is necessary for control of microbial Treatment Technique (TT): A required process intended to reduce thecontaminants. level of a contaminant in drinking water.Maximum residual disinfectant level goal or MRDLG: The level of a2017 Water Quality Test Results5 2017 City of Cocoa Water Quality Report -17359-

Footnotes samples collected. All of the 2017's TTHM and HAA5 samples were collected under “Stage 2 Disinfectants and Disinfec on1. The result in the lowest monthly percentage column is the By-Products”. Range of Results is the range of individual lowest monthly percentage of samples reported in the sample results (lowest to highest) for all monitoring loca ons. Monthly Opera ng Report mee ng the required turbidity limits. Turbidity is a measure of the cloudiness of the water. 4. The monthly TOC removal ra o is the ra o between the actual We monitor it because it is a good indicator of the TOC removal and the required TOC rule removal effec veness of our filtra on system. High turbidity can hinder requirements. the effec veness of disinfectants. 5. Stage 2 Disinfectants and Disinfec on By-Products includes2. Results in the Level Detected column for radioac ve, inorganic results from 2016 for LRAA calcula on. Level Detected is the contaminants, and unregulated contaminants are the highest highest Loca onal running annual average (LRAA) for any average at any of the sampling points or the highest detected given sample loca on during 2017. Range of Results is the level at any sampling point, depending on the sampling range of individual sample results (lowest to highest) for all frequency. monitoring loca ons for 2017. Exceeding the MCL in the range of results column does not automa cally warrant a viola on.3. For Chlorine, the Level Detected is the highest running annual average (RAA), computed quarterly, of monthly averages of allMonitoring and repor ng (M/R) of compliance certain contaminants, including SOCs, every three years. Resultsdata viola on of regular monitoring are an indicator of whether or not our drinking water meets health standards. The first round showedIn 2017, the City of Cocoa U li es Department did not complete no detected synthe c organic carbons. However, the City ofthe second round of monitoring for synthe c organic Cocoa was in viola on of monitoring and repor ngcontaminants (SOC) and color. Cocoa is required to monitor your requirements. We have since taken required samples ondrinking water for specific contaminants on a regular basis and 02/27/2018 and analysis shows no detectable synthe c organicaccording to FDEP regula ons, we are required to sample for carbons.--148620-- 2017 City of Cocoa Water Quality Report 6

Required EPA Information water) include rivers, lakes, streams, ponds, reservoirs, springs, and wells. As water travels over the surface of theCryptosporidium in Drinking Water land or through the ground, it dissolves naturally occurring minerals and, in some cases, radioac ve material, and canCryptosporidium is a microbial parasite found in surface pick up substances resul ng from the presence of animals orwater throughout the United States. We detected from human ac vity.Cryptosporidium in the untreated surface water. Wedetected this contaminant in two out of 25 samples tested in Contaminants that may be present in source water include:2006 through 2008. Although filtra on removesCryptosporidium, the most commonly used filtra on A. Microbial contaminants, such as viruses and bacteria,methods cannot guarantee 100% removal. Ozone is a which may come from sewage treatment plants, sep cpowerful disinfectant that effec vely destroys systems, agricultural livestock opera ons, and wildlife.Cryptosporidium. The City of Cocoa ozonates all surfacewater before it is filtered to ensure the highest possible B. Inorganic contaminants, such as salts and metals, whichremoval rate. can be naturally-occurring or result from urban stormwater runoff, industrial or domes c wastewaterThe City of Cocoa sampled Taylor Creek Reservoir for discharges, oil and gas produc on, mining, or farming.Cryptosporidium once a month. This was in accordance withFlorida Department of Environmental Protec on (FDEP)'s C. Pes cides and herbicides, which may come from aLong Term 2 (LT2) Enhanced Surface Water Treatment rule. variety of sources such as agriculture, urban stormwaterThis rule requires that the city sample for Cryptosporidium to runoff, and residen al uses.provide a baseline for the amount of Cryptosporidium inTaylor Creek Reservoir. This baseline will be used by the EPA D. Organic chemical contaminants, including synthe c andto increase treatment techniques or allow established vola le organic chemicals, which are by-products oftechniques to con nue to treat the surface water. industrial processes and petroleum produc on, and canCompliance sampling began in October 2006 and ended in also come from gas sta ons, urban stormwater runoff,October 2008. We began tes ng for LT2 compliance again in and sep c systems.March, 2015. We collected the last sample in March, 2017. E. Radioac ve contaminants, which can be naturallyWe believe it is important for you to know that occurring or be the result of oil and gas produc on andCryptosporidium may cause serious illness in immuno- mining ac vi es.compromised persons such as persons with cancerundergoing chemotherapy, persons who have undergone To ensure that tap water is safe to drink, the EPA prescribesorgan transplants, people with HIV/AIDS or other immune regula ons, which limit the amount of certain contaminantssystem disorders. These people should seek advice from in water provided by public water systems. The Food andtheir health care providers. Drug Administra on (FDA) regula ons establish limits for contaminants in bo led water, which must provide the sameLead and Drinking Water protec on for public health.If present, elevated levels of lead can cause serious healthproblems, especially for pregnant women and youngchildren. Lead in drinking water is primarily from materialsand components associated with service lines and homeplumbing. The Cocoa U li es Department is responsible forproviding high quality drinking water, but cannot control thevariety of materials used in plumbing components. Whenyour water has been si ng for several hours, you canminimize the poten al for lead exposure by flushing your tapfor 30 seconds to 2 minutes before using water for drinking orcooking. If you are concerned about lead in your water, youmay wish to have your water tested. Informa on on lead indrinking water, tes ng methods, and steps you can take tominimize exposure is available from the Safe Drinking WaterHotline (1-800-426-4791) or at h p://www.epa.gov/safewater/lead.Contaminants that may be present in the sourcewaterThe sources of drinking water (both tap water and bo led7 2017 City of Cocoa Water Quality Report -3917-

Drinking water, including bo led water, may reasonably be · Use and dispose of harmful materials properly. Don'texpected to contain at least small amounts of some dump them on the ground! Hazardous waste that iscontaminants. The presence of contaminants does not dumped on or buried in the ground can contaminatenecessarily indicate that the water poses a health risk. More the soil and can move down into the ground water orinforma on about contaminants and poten al health be carried into nearby surface waters by runoff duringeffects can be obtained by calling the Environmental rainstorms. You might be surprised to learn that aProtec on Agency's Safe Drinking Water Hotline at 1-800- number of products you use at home contain426-4791. hazardous or toxic substances. Products like motor oil, pes cides, le over paints or paint cans, mothballs, fleaImportant Health Informa on collars, weed killers, household cleaners and even a number of medicines contain materials that can beSome people may be more vulnerable to contaminants in harmful to surface water and ground water.drinking water than the general popula on. Immuno-compromised persons such as persons with cancer · Don't overuse pes cides or fer lizers. You might applyundergoing chemotherapy, persons who have undergone fer lizers to make your grass thick and green, yourorgan transplants, people with HIV/AIDS or other immune flowers colorful and your vegetable crop abundant.system disorders, some elderly, and infants can be You also might use pes cides to keep bugs from ruiningpar cularly at risk from infec ons. These people should what the fer lizers have helped to produce. What youseek advice about drinking water from their health care might not know is that many of these fer lizers andproviders. EPA/CDC guidelines on appropriate means to pes cides contain hazardous chemicals that can travellessen the risk of infec on by Cryptosporidium and other through the soil and contaminate ground water. If youmicrobiological contaminants are available from the Safe feel you must use these chemicals, use them inDrinking Water Hotline (800-426-4791). modera on.Protec ng a precious resource by reducing use, usingefficiently, and preserving quality · Don't flush your unused/unwanted medica ons down toilets or sink drains. For more informa on, please clickProtec ng a precious resource here at h p://www.dep.state.fl.us/waste/categories/ medica ons/pages/disposal.htm.Help Protect Water Quality · Volunteer in your community. Find a watershed orYou can help protect our water quality. wellhead protec on organiza on or a source waterQuick Things You Can Do! collabora ve in your community and volunteer to help.Protec ng drinking water sources usually requires the · Join in a beach, stream or wetland cleanup. You cancombined efforts of many partners such as public water make new friends while you help protect source water.systems, communi es, resource managers and the public.--18420-- 2017 City of Cocoa Water Quality Report 8

Water Conservation June 1st through September 30thWater conserva on measures are an important first step inprotec ng our water supply. Such measures help to preserve HELP US...the supply of our source water and also save you money by Preserve the Indian River Lagoon byreducing your water bill. reducing nutrient laden runoff during the summer months.Know Your Days- Irrigate before 10:00 am and a er 4:00 pm This means NO phosphorus and NODaylight Saving Time (spring & summer) 2 days a week, if nitrogen fertilizer application duringneeded: this span.  Odd numbered residen al addresses – Wednesday & The City of Cocoa is committed to the Saturday summer fertilization ban. Join the movement to help save our Lagoon!  Even numbered residen al addresses – Thursday & Sunday  Nonresiden al irriga on – Tuesday & FridayEastern Standard Time (fall & winter) 1 day a week, ifneeded:  Odd numbered residen al addresses – Saturday  Even numbered residen al address addresses – Sunday  Nonresiden al irriga on – TuesdayOther ways that you can help conserve water can be found ath p://www.cocoafl.org/conserva on orh p://water.epa.gov/ac on/protect/.We at the Cocoa U li es Department would like you tounderstand the efforts we make to con nually improve thewater treatment process and protect our water resources.We are commi ed to insuring the quality of your water. For more information on the fertilizer ordinance, please contact Public Works at (321) 433-8770.9 2017 City of Cocoa Water Quality Report If you have any ques ons or concerns about the informa on provided please feel free to call 321-433-8705 or email ddowns@cocoafl.org. -3791-

WHERE DOES MY WATER COME FROM?Toilet RebatesDon’t Flush Your Money Down the Drain!Was your home built before 1994? You may qualify for a $50rebate!Was your home was built before 1994 and does it s ll havethe original toilets that use 3.5 gallons per flush (gpf) ormore? If so, you may qualify for a $50 rebate when youreplace those old, water was ng toilets with new ultra-lowflow toilets. The rebate is offered for the replacement of atoilet that uses 3.5 gpf or more with a toilet that uses 1.28gpf or less. To find out more visit www.cocoafl.org/conserva on, or call 433-8705, or email ddowns@cocoafl.org.A en on Apartment Complex/Mul -FamilyWater CustomersFor the first me, Cocoa has rebates available for mul -family customers to replace old, high consump on toilets.Property must have an ac ve City of Cocoa U li es wateraccount in good standing and the toilet must be installed at aproperty that receives a water bill from the City of Cocoa.Rebate is offered for replacement of an exis ng 3.5 gallonper flush (gpf) or more toilets with a 1.28 gpf or less toilet. --18420-- 2017 City of Cocoa Water Quality Report 10

Cocoa City Council Utilities StaffHenry U. Parrish III Jack WalshMayor DirectorJeri Blanco Katherine EnnisDeputy Mayor - District 4 Deputy DirectorClarence Whipple, Jr. Don DownsCouncilperson - District 1 Conservation/PR OfcerBrenda Warner For more information contactCouncilperson - District 2 Don Downs at (321) 433-8705 or ddowns@cocoa.org.Don BoisvertCouncilperson - District 3