TEST RESULTS CONTAMINANT COMPLIANCE Y/N HIGHEST LEVEL DETECTED RANGE DETECTED MCL MCLG LIKELY SOURCE OF CONTAMINATION MICROBIOLOGICAL CONTAMINANTS Total Coliform Bacteria (System takes 50 monthly samples) Y 0 positive N/A 5% positive 0 Naturally present in the environment Fecal coliform and E.coli Y 0 N/A 0 0 Human and animal fecal waste RADIOCHEMICAL CONTAMINANTS Beta/Photon emitters 2016 Y 5.71 mrem/year 2.16-5.71 mrem/year 4 0 Decay of natural and man-made deposits. Gross Alpha excluding Radon and Uranium (pCi/L) 2016 Y 12pci/l PCI/L 0-12 PCI/l 15 0 Erosion of natural deposits Combined radium 226/228 (pCi/L) 2016 Y 0.675 PCI/L 0-0.675 PCI/L 5 0 Erosion of natural deposits Uranium (pCi/L or ug/l) 2016 Y 14.4 UG/L 0-14.4 UG/L 30 pCi / L Or 30 ug / L 0 Erosion of natural deposits Dichloromethane Y 1 0-1.72 5 ppb 0 Discharge from pharmaceutical and chemical factories. REGULATED CONTAMINANTS Arsenic (ppb) Y 2 UG/L 0-16.3 UG/L 10 0 Erosion of natural deposits; runoff from orchards; runoff from glass and electronics production wastes Barium (PPM) Y 0.361 PPM 0.12-0.361 PPM 2 2 Discharge of drilling wastes; discharge from metal refiner- ies; erosion of natural deposits Chromium (ppb) Y 67 UG/L 0-67 UG/L 100 100 Discharge from steel and pulp mill; erosion of natural deposits; Fluoride Y 0.59 PPM 0.18-0.59 PPM 4 4 Erosion of natural deposits, water additive which pro- motes strong teeth, discharge from fertilizer and aluminum factories. Nitrite (measured as nitrogen) 2016 Y 0.28 PPM 0-0.28 PPM 1 1 Runoff from fertilizer use: leaching from septic tanks, erosion of natural deposits. Nitrate (measured as nitrogen) Y 1 PPM 0-0.5 PPM 10 10 Runoff from fertilizer use: leaching from septic tanks, erosion of natural deposits. Copper (ppm) 90% Value Year sampled 2017 Y 0.023 PPM N/A AL=1.3 1.3 Corrosion of household plumbing systems; erosion of natural deposits; leaching from wood preservatives Lead (ppb) 90% Value Year sampled 2017 Y BPQL PPB N/A AL=15 Action Level – 90% of samples must be below this level. 0 Corrosion of household plumbing systems, erosion of natural deposits Selenium Y 24.5 PPB 0-24.5 PPB 50 50 Discharge from petroleum and metal refineries, Erosion of natural deposits, Discharge from mines Haloacetic Acids; (ppb) (HAA5) Y 34 PPB 8.5-41.5 PPB 60 No goal for the total By-product of drinking water chlorination. Total Trihalomethanes (ppb) Y 58 PPB 34.2-71.5 PPB 80 No goal for the total By-product of drinking water chlorination. VOLATILE ORGANIC CONTAMINANTS Dichloromethane Y 1 ppb 0-1.72 ppb 5 0 Discharge from pharmaceutical and chemical factories Toluene Y 0.00085 ppm 0-0.00085 ppm 1 1 Discharge from petroleum factories While your drinking water meets EPA’s standard for arsenic, it does contain low levels of arsenic. EPA’s standard balances the current understanding of arsenic’s possible health effects against the costs of removing arsenic from drinking water. EPA continues to research the health effects of low levels of arsenic which is a mineral known to cause cancer in humans at high concentrations and is linked to other health effects such as skin damage and circulatory problems UCMR3: EPA uses the Unregulated Contaminant Monitoring (UCM) program to collect data for contaminants suspected to be present in drinking water, but that do not have health-based standards set under the Safe Drinking Water Act (SDWA). Every five years EPA reviews the list of contaminants, largely based on the Contaminant Candidate List. The SDWA Amendments of 1996 provide for: • Monitoring no more than 30 contaminants every five years • Monitoring only a representative sample of public water systems serving less than 10,000 people • Storing analytical results in a National Contaminant Occurrence Database (NCOD) UCMR 3 is the third round of monitoring under the UCM Rule. The data in this report is from sampling performed in 2017 unless noted. City of Moore Water Test Results City of Oklahoma City Water Test Results OKLAHOMA CITY UTILITIES - WATER QUALITY SUMMARY 2017 DETECTED CONTAMINANTS UNITS IDEAL GOAL (EPA’S MCLG) HIGHEST LEVEL ALLOWED (EPA’S MCL) HEFNER WTP PWS ID 1020902 DRAPER WTP PWS ID 1020902B OVERHOLSER WTP PWS ID 1020902C COMPLIANCE MAJOR SOURCES IN DRINKING WATER INORGANIC COMPOUNDS Fluoride 1 ppm 4 4 Average level detected in most recent testing - 2017 YES Added during treatment for dental health or dissolved from natural deposits 0.65 0.69 0.62 Lead ppb 0 AL = 15 Most recent systemwide distribution testing All Sites < AL YES Corrosion of household plumbing; erosion of natural deposits August 2017 - 90th Percentile = <1.0 Barium ppm 2 2 Highest level, most recent testing - 2013 YES Discharge of Drilling Wastes; discharge from metal refineries; erosion of natural deposits 0.052 0.057 0.032 Copper ppm 0 AL = 1.3 Most recent systemwide distribution testing All Sites < AL Corrosion of household plumbing; erosion of natural deposits August 2017 - 90th Percentile = 0.215 YES Arsenic ppb 0 10 Highest level, most recent testing - 2013 YES Erosion of natural deposits; runoff from orchards; runoff from electronics and glass production wastes <2 <2 <2 Nitrate-Nitrite 2 ppm 10 10 Highest level, most recent testing - 2017 YES Runoff from fertilizer; leaching from septic tanks, sewage or erosion of natural deposits 0.299 0.115 0.180 RADIOLOGICAL Range detected in most recent testing - 2012 Hefner & Draper YES Decay of natural and man-made deposits Range detected in most recent testing - 2017 Overholser Gross Alpha pCi/L 0 15 <2.229 <0.4744 <3.00 Gross Beta pCi/L 0 50 6.784 2.611 8.78 Radium 226 + 228 pCi/L 0 5 <0.545 <0.495 <1.00 Uranium ppb 0 30 <1.00 <1.00 <1.00 DISINFECTION BY-PRODUCTS STAGE 2 RULE MONITORING 3 Total Trihalomethanes 4 ppb 0 80 (LRAA) Most recent systemwide distribution testing 2016/2017 YES By-product of drinking water disinfection Highest Locational Running Annual Average (LRAA) 16425 Sterling Canyon Drive (Draper) - 70.87 Range Detected: 8.01 - 76.73 Highest quarterly average (LRAA) 17.96 71.50 64.66 Range detected 8.01 - 28.02 10.57 - 76.41 19.47 - 76.73 Haloacetic Acids 4 ppb 0 60 (LRAA) Most recent systemwide distribution testing 2016/2017 YES By-product of drinking water disinfection Highest Locational Running Annual Average (LRAA) 12716 NE 36th St (Draper) - 43.65 Range Detected: 2.73 - 50.80 Highest quarterly average (LRAA) 7.88 43.65 39.40 Range detected 2.73 - 11.00 5.94 - 50.80 11.20 - 50.30 Bromate 5 ppb 0 10 (RAA) Highest quarterly average (RAA) - 3.36 YES By-product of disinfection by ozone Only Hefner Plant uses Ozone Range detected - < 5.10 - 6.54 PRECURSOR REMOVAL Total Organic Carbon 6 (TOC) TT = Ratio must be greater than or equal to 1.00 for compliance Average of monthly ratios YES Naturally occurring 1.85 0.371 1.70 Monthly Ratio = (% TOC removed) divided by (% TOC removal required) DISINFECTION RESIDUAL Chloramines as Chlorine 7 ppm NA MRDL Average readings YES Water additive used to control microbes 4.0 3.62 3.32 3.28 Range detected 2.50 - 4.80 1.50 - 3.90 1.90 - 5.00 MICROBIOLOGICAL Coliform Bacteria 0 Presence of Coliform bacteria in <5% of samples 2017 System-wide distribution testing YES Naturally present in the environment CFUs Month having the highest % positive - November/December (2 positive in 246 samples - 0.813 %) % positive Seven positive Coliform results in 3070 samples (0.228 % occurrence) CLARITY Turbidity 8 NTU% > 0.3 NA TT = > 0.3 NTU in not more than 5% of samples Lowest monthly % of samples with < 0.3 NTU YES Lime and/or calcium carbonate particles from softening efforts; soil runoff 100.0% 100.0% 97.2% Highest single reading 0.29 0.24 .51 LONG TERM 2 ENHANCED SURFACE WATER TREATMENT RULE Cryptosporidium 9 cysts/L 0 NA All source waters tested were non-detect. YES Storm runoff, agricultural runoff and leaking sewage systems DETECTED UCMR3 ANALYTES (2013) 10 Average Range More Info Chlorate ppb NA NA 36.4 <20.0 - 36.4 1 of 12 samples >20.0 NA By-product of drinking water disinfection, making of dyes, explosives, matches, printing fabrics, herbicides, antiseptics, toothpastes and in paper pulp processing. Hexavalent Chromium ppb NA NA 0.141 <0.030 - 0.391 11 of 12 samples >0.030 NA Naturally occurring. By-product of making steel and other alloys, plating, dyes and pigments, leather and wood preservation. Total Chromium ppb 100 (0.100 mg/L) 100 (0.100 mg/L) 0.428 <0.200 - 0.471 2 of 12 samples >0.200 YES Naturally occurring. By-product of making steel and other alloys, plating, dyes and pigments, leather and wood preservation. Molybdenum ppb NA NA 2.76 <1.00 - 3.24 6 of 12 samples >1.00 NA Naturally occurring. By-product of making steel and other alloys, lubricants, dyes and pigments, fertilizers. Strontium ppb NA NA 295 42.9 - 763 12 of 12 samples >3.00 NA Naturally occurring. By-product of making electronics and fireworks. Vanadium ppb NA NA 2.78 <0.200 - 7.50 11 of 12 samples >0.200 NA Naturally occurring. By-product of making steel alloys, chemical manufacturing, ceramics and batteries. CityofMoore_WaterQualityReport_2018_final2.indd 1 8/30/18 8:16 PM