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Test Results <br />Our water is monitored for many kinds of substances on a very strict sampling schedule, and the water we deliver must meet specific health <br />standards. Here, we only show those substances that were detected in our water (a complete list of all our analytical results is available upon <br />request). Remember that detecting a substance does not mean the water is unsafe to drink; our goal is to keep all detections below their respective <br />maximum allowed levels. <br />The state recommends monitoring for certain substances less than once per year because the concentrations of these substances do not change <br />frequently. In these cases, the most recent sample data are included, along with the year in which the sample was taken. <br />REGULATED SUBSTANCES <br />SUBSTANCE <br />(UNIT OF MEASURE) <br />YEAR <br />SAMPLED <br />MCL <br />[MRDL1 <br />MCLG <br />[MRDLGI <br />AMOUNT <br />DETECTED <br />RANGE <br />LOW -HIGH <br />VIOLATION <br />TYPICAL SOURCE <br />Barium (ppm) <br />2018 <br />2 <br />2 <br />0.02 <br />NA <br />No <br />Discharge of drilling wastes; discharge from <br />metal refineries; erosion of natural deposits <br />Chlorine (ppm) <br />2022 <br />[4] <br />[4] <br />0.79 <br />0.60-0.84 <br />No <br />Water additive used to control microbes <br />Fluoride (ppm) <br />2022 <br />4 <br />4 <br />0.73 <br />0.64-0.77 <br />No <br />Erosion of natural deposits; water additive <br />which promotes strong teeth; discharge from <br />fertilizer and aluminum factories <br />Gross Alpha Particles (pCi/L) <br />2020 <br />15.4 <br />0 <br />3.6 I <br />ND-3.6 <br />i No <br />i Erosion of natural deposits <br />Haloacetic Acids [HAAs]—Stage 1 <br />2022 <br />1 60 <br />NA <br />6.70 <br />5.10-6.70 <br />No <br />By-product of drinking water disinfection <br />(ppb) <br />Nitrate (ppm) <br />2022 <br />10 <br />10 <br />ND-1.40 <br />ND-1.40 <br />No <br />Runoff from fertilizer use; leaching from <br />septic tanks, sewage; erosion of natural <br />deposits <br />TTHMs [total trihalomethanes]— <br />2022 <br />80 <br />NA <br />17.60 <br />11.90-17.60 <br />No <br />By-product of drinking water disinfection <br />Stage 1 (ppb) <br />Xylenes (ppm) <br />2019 <br />10 <br />10 <br />ND <br />NA <br />No <br />Discharge from petroleum factories; discharge <br />from chemical factories <br />Tap water samples were collected for lead and <br />copper analyses from sample <br />sites throughout the community <br />SUBSTANCE <br />YEAR <br />(UNIT OF MEASURE) <br />SAMPLED <br />Copper (ppm) <br />2022 <br />Lead (ppb) <br />2022 <br />AMOUNT <br />DETECTED <br />SITES ABOVE <br />(90TH <br />AL/TOTAL <br />AL <br />MCLG <br />%ILE) <br />SITES <br />1.3 <br />1.3 <br />0.23 <br />1130 <br />15 <br />0 <br />1.37 <br />0130 <br />UNREGULATED SUBSTANCES <br />SUBSTANCE <br />YEAR <br />AMOUNT <br />RANGE <br />(UNIT OF MEASURE) <br />SAMPLED <br />DETECTED <br />LOW -HIGH <br />Manganese (ppb) <br />2019 <br />0.41 <br />ND-0.81 <br />Sodium' (ppm) <br />2021 <br />3.58 <br />3.40-3.58 <br />Sulfate (ppm) <br />2021 <br />7.76 <br />2.95-7.76 <br />VIOLATION TYPICAL SOURCE <br />No Corrosion of household plumbing systems; erosion of natural deposits <br />1►� <br />Lead service lines; corrosion of household plumbing systems, including <br />fittings and fixtures; erosion of natural deposits <br />' In -home water <br />softening can <br />TYPICAL SOURCE increase the <br />NA <br />NA <br />NA <br />level of sodium in <br />your water. <br />181 <br />