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KNOWWHAT’SIN YOURPublic Water System ID Number: MO5010754DrinkingWater2021 WATER QUALITY REPORTCity Utilities of Springfield, Missouri

Table of ContentsDirectors Award. 3Watershed Stewardship at Fellows Lake. 6Where Your Water Comes From. 7About Our Watershed. 8Important Drinking Water Definitions. 9Water Quality Summary. 10Unregulated Contaminant Monitoring.13Water at a Glance.14How Your Water is Treated.15Water Savings Tips.171I WATER QUALITY REPORT

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This report contains important information about Springfield’s drinking water.For more information regarding this assessment or for additional water quality data,call the City Utilities Manager-Water Quality Lab at 417-831-8822.For the 22nd year in a row, City Utilities of Springfield’s Blackman andFulbright Water Treatment Plants have received the Directors Award fromthe Partnership for Safe Water, a program of the American Water WorksAssociation (AWWA). This award is given in recognition of the efforts toachieve excellence in water quality far beyond what is required by federalregulations. Less than one percent of the treatment plants in the UnitedStates have received this recognition.3I WATER QUALITY REPORT

Water is important for all life.While City Utilities provides water,natural gas, electricity, transit,and broadband services to theCity of Springfield—water is theonly commodity that our customersingest. Providing safe drinking wateris not an option, but is a necessity tokeep our community healthy.City Utilities’ commitment to you,our neighbor, is that our team willcontinue to work hard every dayto ensure you not only have safedrinking water, but great tastingwater too.ATTENTIONLandlords andApartment Owners:Please share a copyof this report with yourtenants about thequality of theirdrinking water.2021 I4

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at Fellows to expand on a long and productivepartnership with City Utilities to help peopleconnect and “protect”.What about the other 99 percent of our drinkingwater catchment-mostly rural/agricultural-that isprivately owned? The intersection of everythingwe’ve learned so far is that producers are not ourbiggest challenge, they are our best opportunity!With a few key practices like implementing riparianbuffers and rotational grazing, producers canrealize increased productivity while improvingrunoff water quality, as well as absorption intothe soils and aquifer. The Little Sac GrazingDemonstration, located on CU property just belowFellows Lake, serves as an outdoor classroom forpartners to showcase this regenerative transition.FELLOWS LAKE SEES NEW RECREATIONWITH WATER QUALITY TOP-OF-MINDWATERSHED STEWARDSHIP ATFELLOWS LAKE AND BEYONDMike Kromrey, Executive Director, WatershedCommittee of the OzarksWe can’t make it rain. Over 99 percent of thewatersheds that collect our drinking water areprivately owned. Our population in southwestMissouri is growing, and weather and long-termclimate trends are uncertain. Few things are asimportant as providing clean, safe, affordabledrinking water; few things are as easy to overlookbecause of a job well done. Keeping up the goodwork for years to come will require long-termvision, planning, and building on our currentsuccess with urgency. Fellows Lake provides thetesting ground and template for future efforts.Keeping Fellows Lake clean has always been,and always will be, paramount. How we recreatearound clean water can take different forms,and the current plans mark a shift in strategy:from focus on protection through restriction, toa focus on engagement and stewardship. Lowimpact “silent sports,” like hiking, cycling, running,paddling, fishing, hunting, bird watching even kiteflying, provide the chance to share the resource,build community, and engage patrons witheducation and stewardship. As the venerable quoteby Baba Dioum states: “In the end we will conserveonly what we love; we will love only what weunderstand; and we will understand only what weare taught.” In 2021, Watershed Committee of theOzarks (WCO) signed on as a community partnerFellows Lake is quickly becoming a recreationaldestination for the area-with biking, boating,fishing, and hiking opportunities in abundance, andmore exciting things on the horizon. The strongpartnership between City Utilities of Springfield,Ozarks Greenways, the Watershed Committee ofthe Ozarks, and TrailSpring has helped provideand grow the vision for the area.These partner initiatives have enhanced thearea, while placing a high priority on the role ofthe lake’s water to the community.“In the endwe will conserveonly what welove; we will loveonly what weunderstand; and wewill understandonly what weare taught.”2021 I6

WHERE YOUR WATERCOMES FROMCity Utilities’ drinking water comes from a variety of lakes, rivers, wells, and a spring. Approximately74 percent of Springfield’s drinking water comes from surface waters, such as lakes and rivers. Theremaining comes from groundwater wells and a spring.City Utilities’ Fulbright and Blackman Water Treatment Plants use a combination of sources forwater treatment, including both surface and groundwater. Fulbright is located on the northern edgeof Springfield and is served by Fulbright Spring (the original source for the city), a deep well, andMcDaniel Lake. The Blackman Plant is in the southeastern corner of the city and receives water fromFellows Lake and James River. Both Fellows and McDaniel Lakes can be supplemented with waterfrom Stockton Lake. Another deep well can be found in the distribution system and is used as anadditional source when needed.7I WATER QUALITY REPORT

St ClairCamdenHickoryABOUT OUR WATERSHED The cleaner our sources of drinking water,the better it will taste and smell, less it willcost, and more affordable it will be for theconsumers.elin Nutrients from fertilizer, animal or humanwaste, and sediment from erosion can causealgae blooms in our drinking water reservoirswhich can negatively impact our water supply.pePi Prescribed or rotational grazing practices helpimprove soil health and water quality, whileover- grazed pastures do the opposite.PolkStocktonLakeeratW The “riparian area” is the land along streamsand rivers. Forested riparian areas are oneof the best ways to prevent flood damage,erosion, and nutrient pollution to ourdrinking water.DallasStockton LakeWatershedw The wells in Springfield come from the aquiferwhich are replenished by precipitation soakinginto the ground. Healthy soils increase thequality and quantity of water that rechargesthe aquifer.CedarRaSpringfield is fortunate to have a variety ofnatural resources available to supply ourcommunity’s drinking water. Springfield’swater sources are unique compared to othercommunities in southwest Missouri. While othertowns and rural residents rely on groundwaterwells, customers of City Utilities have anabundance of surface water sources.DadeGreeneMcDaniel LakeWatershedMcDanielLakeFulbright SpringRecharge AreaFellows Lake renceSpringfieldJames RiverWatershedSpringfieldLakeChristianSOURCE WATER ASSESSMENTThe Department of Natural Resourcescompleted a source water assessment forCity Utilities’ drinking water sources. Theassessment showed that, as expected forsurface waters, the sources are susceptible toviruses and microbiological contaminants, whichare inactivated by conventional treatment. Inaddition, all surface waters are moderatelysusceptible to land-use activities within thewatershed. City Utilities, in support of theWatershed Committee of the Ozarks, willcontinue to encourage low-impact land useto reduce detrimental effects to our drinkingwater sources. The source water assessmentfor our system can be found online at http://drinkingwater.missouri.edu. City Utilities’ PublicWater System number is 5010754.2021 I8

IMPORTANT DRINKING WATER DEFINITIONS90th percentile: For lead and copper testing.10% of test results are above this level and 90%are below this level.Action Level (AL): The concentration of acontaminant which, if exceeded, triggersrequirements which a water system must follow.HAA5: Haloacetic acids (mono-, di-, andtri-chloroacetic acid, and mono- anddi-bromoacetic acid) as a group.Locational Running Annual Average (LRAA):The average of samples collected at a particularlocation, calculated from the most recent4 quarters.Maximum Contaminant Level (MCL): Thehighest level of a contaminant that is allowedin drinking water. MCLs are set as close to theMCLGs as feasible using the best availabletreatment technology.Maximum Residual Disinfectant Level Goal(MRDLG): The level of a drinking waterdisinfectant below which there is no knownor expected risk to health. MRDLGs do notreflect the benefits of disinfectant use to controlmicrobial contamination.Nephelometric Turbidity Units (NTU): Ameasure of cloudiness of the waterPopulation: 172,025. This is the equivalentresidential population served including non-billpaying customers.Range of Results: Shows the lowest and highestlevels found during a testing period. If only onesample was taken, then this numberequals the highest test result or highest value.Running Annual Average (RAA): The averageof sample analytical results for samples takenduring the previous four calendar quarters.Maximum Contaminant Level Goal (MCLG): Thelevel of a contaminant in drinking water belowwhich there is no known or expected health risk.MCLGs allow for a margin of safety.Total Trihalomethanes (TTHM):Total trihalomethanes (chloroform,bromodichloromethane, dibromochloromethane,and bromoform) as a group.Maximum Residual Disinfectant Level (MRDL):The highest level of a disinfectant allowed indrinking water. There is convincing evidence thataddition of a disinfectant is necessary for controlof microbial contaminants.Treatment Technique (TT): A required processintended to reduce the level of a contaminantin drinking water.Turbidity: A measure of the cloudiness orclarity of water. It is monitored because it is agood indicator of both water quality and theeffectiveness of our filtration system.UNIT DESCRIPTIONS & DEFINITIONSGrains Per Gallon (GPG):measure of hardness 1 GPG 17.1 ppmMEASUREMENTSParts Per Million (ppm):or milligrams per liter (mg/L)Parts Per Billion (ppb):or micrograms per liter (ug/L)Not Detected (ND):not detectable at testing limitsN/A:not applicable9I WATER QUALITY REPORTParts Per Million1 drop in a 10-gallonfish tankParts Per Billion1 drop in a 10,000-gallonswimming pool

CITY UTILITIES OF SPRINGFIELD - WATER QUALITY SUMMARY 2021DetectedContaminantsUnitsMCLGMCLRangeAverage LevelDetectedComplianceMajor SourcesND ( 0.10) 0.420.96YESAdded during treatment for dentalhealth or dissolvedfrom natural deposits1.42YESTreatment PlantsFluorideppmTotal LN/ATT: 0N/ATT: at least95%of samples 0.3 NTUTotal OrganicCarbonTurbidityNTU444 (MRDLG) 4 (MRDL)0.76 - 2.580.0472 0.05980.0689YESND ( 0.05) 2.04YESND ( 0.01)1ND ( 0.01)YES0.80Water additive usedfor disinfectionDischarge of drillingwastes or from metalrefineries; erosion ofnatural depositsRunoff from fertilizer;leaching from septictanks or sewage;erosion ofnatural depositsRunoff from fertilizeruse; leaching fromseptic tanks, sewage;erosion ofnatural deposits0.71 - 2.53YESNaturally occurringHighest SingleMeasurement 0.12Percentage of samples 0.3 NTU 100%Fully Compliant - all 12 monthsYESSoil runoff1.492021 I10