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2022 PUBLIC HEALTH GOALS REPORT <br />CITY OF SANTA ANA <br />UNITS <br />PHG <br />CONCENTRATION <br />CATEGORY <br />CANCER RISK <br />CANCER <br />BEST <br />AGGREGATE <br />COST PER <br />PARAMETER <br />OF <br />OR <br />MCL <br />DLR <br />GROUNDWATER <br />SURFACE WATER <br />OF <br />AT PHG <br />RISK <br />AVAILABLE <br />COST <br />HOUSEHOLD <br />MEASUREMENT <br />(MCLG)* <br />VALUE <br />RANGE <br />VALUE <br />RANGE <br />RISK <br />OR MCLG <br />AT MCL <br />TECHNOLOGIES <br />PER YEAR <br />PER YEAR <br />INORGANIC CHEMICALS <br />Arsenic <br />pg/I <br />0.004 <br />10 <br />2 <br />ND <br />ND - 2.2 <br />ND <br />ND <br />C <br />1 x 10-6 <br />2.5 x 10-3 <br />AA,C/F,E,IE,LS,O/F,RO <br />$2,120,000 (a) <br />$47 (a) <br />Bromate <br />pg/I <br />0.1 <br />10 <br />1 <br />NR <br />NR <br />1.3 <br />ND-7 <br />C <br />1 x 10-6 <br />1 x 10-4 <br />C/F, GAC, RO <br />$2,280,000 - $19,500,000 (b) <br />$50 - $431 (b) <br />Perchlorate <br />pg/I <br />1 <br />6 <br />2 <br />ND <br />ND-5 <br />ND <br />ND <br />E <br />NA <br />NA <br />IE, BFBR <br />$1,040,000 - $2,270,000 (c) <br />$23 - $50 (c) <br />RADIOLOGICAL <br />Gross Alpha Particle Activity <br />pCi/I <br />(0) <br />15 <br />3 <br />ND <br />ND - 14 <br />ND <br />ND-3 <br />C <br />0 <br />1 x 10-3 <br />RO <br />$9,180,000 - $78,500,000 (d) <br />$203 - $1,735 (d) <br />Gross Beta Particle Activity <br />pCi/I <br />(0) <br />50 <br />4 <br />NR <br />NR <br />ND <br />ND-7 <br />C <br />0 <br />2 x 10-3 <br />IE, RO <br />-- <br />-- <br />Radium, Combined (e) <br />pCi/I <br />(0) <br />5 <br />1 (e) <br />ND <br />ND <br />ND <br />ND-1 <br />C <br />1 x 10-6 <br />3 x 10-4 <br />IE, LS, RO <br />-- <br />- <br />Uranium <br />pCi/I <br />0.43 <br />20 <br />1 <br />2.8 <br />ND - 8.2 <br />1.3 <br />ND-3 <br />C <br />1 x 10-6 <br />5 x 10-5 <br />RO <br />- <br />-- <br />ALL CONTAMINANTS <br />-- <br />-- <br />I -- <br />I -- <br />-- <br />-- <br />-- <br />-- <br />-- <br />-- <br />-- <br />IE and RO <br />$10,200,000 - $80,800,000 (f) <br />$226 - $1,785 (f) <br />* MCI -Gs are shown in parentheses. MCI -Gs are provided only when no applicable PHG exists. <br />RISK CATEGORIES <br />C (Carcinogen) = A substance that is capable of producing cancer. <br />E (Endocrine Toxicity; Developmental Toxicity) = Affects tyroid; causes neurodevelopmental deficits <br />NOTES <br />PHG = Public Health Goal <br />MCL = Maximum Contaminant Level <br />MCLG = Maximum Contaminant Level Goal <br />NA = Not Appplicable or Available <br />ND = Not Detected <br />NR = Not Required <br />ug/I = micrograms per liter or parts per billion <br />pCi/I = picoCuries per liter <br />DLR = Detection Limit for Purposes of Reporting <br />(a) Estimated cost to remove arsenic using IE. <br />(b) Estimated cost to remove bromate using RO. <br />(c) Estimated cost to remove perchlorate using IE. <br />(d) Estimated cost to remove gross alpha particle activity using RO, which also removes combined radium, gross beta particle activity, and uranium. <br />(e) As the sum of radium-226 and radium-228. DLRs for radium-226 and radium-228 is 1 pCi/L and 1 pCi/L, respectively. <br />(f) Assuming treating the entire production by IE and RO, which can remove all contaminants listed in the above chart to below the detecchart levels. <br />J:\2605\2605-003 - Santa Ana 2022 PHG\Santa A-_ph9tab1e_2022.x1- <br />TREATMENT TECHNOLOGIES <br />AA = Activated Aluminum <br />BFBR = Biological Fluidized Bed Reactor <br />C/F = Coagulation/Filtration <br />E = Electrodialysis <br />GAC = Granular Activated Carbon <br />IE = Ion Exchange <br />LS = Lime Softening <br />O/F = Oxidation/Filtration <br />RO = Reverse Osmosis <br />&nbsp; <br />City Council <br />&nbsp;23 &ndash;&nbsp;11 <br />10/ 18/2022 <br />&nbsp; <br />