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<br />2022 PUBLIC HEALTH GOALS REPORT <br />CITY OF SANTA ANA <br />UNITS <br />OF <br />MEASUREMENT <br />PHG <br />OR <br />(MCLG)* <br />CONCENTRATION <br />GROUNDWATER SURFACE WATER <br />CATEGORY CANCER RISK CANCER BEST <br />AVAILABLE <br />TECHNOLOGIES <br />AGGREGATE <br />COST <br />PER YEAR <br />COST PER <br />HOUSEHOLD <br />PER YEAR <br />PARAMETER MCL DLR OF AT PHG RISK <br />VALUE RANGE VALUE RANGE RISK OR MCLG AT MCL <br />INORGANIC CHEMICALS <br />Arsenic μg/l <br />μg/l <br />μg/l <br />0.004 <br />0.1 <br />1 <br />10 <br />10 <br />6 <br />2 <br />1 <br />2 <br />ND <br />NR <br />ND <br />ND - 2.2 <br />NR <br />ND <br />1.3 <br />ND <br />ND <br />ND - 7 <br />ND <br />C <br />C <br />E <br />1 x 10-6 <br />1 x 10-6 <br />NA <br />2.5 x 10-3 <br />1 x 10-4 <br />NA <br />AA,C/F,E,IE,LS,O/F,RO <br />C/F, GAC, RO <br />$2,120,000 (a)$47 (a) <br />Bromate $2,280,000 - $19,500,000 (b) <br />$1,040,000 - $2,270,000 (c) <br />$50 - $431 (b) <br />$23 - $50 (c)Perchlorate ND - 5 IE, BFBR <br />RADIOLOGICAL <br />Gross Alpha Particle Activity <br />Gross Beta Particle Activity <br />Radium, Combined (e) <br />Uranium <br />pCi/l <br />pCi/l <br />pCi/l <br />pCi/l <br />(0) <br />(0) <br />15 <br />50 <br />5 <br />3 <br />4 <br />ND <br />NR <br />ND <br />2.8 <br />ND - 14 <br />NR <br />ND <br />ND <br />ND <br />1.3 <br />ND - 3 <br />ND - 7 <br />ND - 1 <br />ND - 3 <br />C <br />C <br />C <br />C <br />0 1 x 10-3 <br />2 x 10-3 <br />3 x 10-4 <br />5 x 10-5 <br />RO <br />IE, RO <br />IE, LS, RO <br />RO <br />$9,180,000 - $78,500,000 (d)$203 - $1,735 (d) <br />0 -- <br />-- <br />-- <br />-- <br />-- <br />-- <br />(0)1 (e) <br />1 <br />ND 1 x 10-6 <br />1 x 10-60.43 20 ND - 8.2 <br />ALL CONTAMINANTS ----------------------IE and RO $10,200,000 - $80,800,000 (f)$226 - $1,785 (f) <br />* MCLGs are shown in parentheses. MCLGs are provided only when no applicable PHG exists. <br />RISK CATEGORIES TREATMENT TECHNOLOGIES <br />AA = Activated Aluminum <br />BFBR = Biological Fluidized Bed Reactor <br />C/F = Coagulation/Filtration <br />E = Electrodialysis <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 GAC = Granular Activated Carbon <br />IE = Ion Exchange <br />LS = Lime Softening <br />O/F = Oxidation/Filtration <br />RO = Reverse Osmosis <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/l = micrograms per liter or parts per billion <br />pCi/l = 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 Ana_phgtable_2022.xlsx