Isabella Gee Environmental and Water Resources Engineering Regulations Fluoride EPA Limit F 4 ppm Arsenic EPA Limit As 10 ppb lt2 ppm Hydroxyapatite Ca 10 PO ID: 1048135
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1. Spatial Analysis of Fluoride and Arsenic Contamination in Colorado WaterIsabella GeeEnvironmental and Water Resources Engineering
2. RegulationsFluoride EPA Limit:[F] = 4 ppm Arsenic EPA Limit: [As] = 10 ppb<2 ppm
3. HydroxyapatiteCa10(PO4)6(OH)2FluorapatiteCa10(PO4)6F2Fluoride replaces OH- groups in hydroxyapatite and is remineralized as fluorapatiteF-F-F-F-F-F-F-F-Fluorosis
4. Goals:Interpret Fluoride and Arsenic data for trendsIdentify areas of high risk for contaminationInvestigate potentially impacted Water SystemsInfluencing FactorsGeologyHydrologyData Sample Sites
5. STORET Data CollectionAll Government DataAll Relevant Water SourcesBasic Parameters
6. Colorado Geology
7. 13 unique bedrock aquifersColorado HydrologyAlluvial Aquifers: Streams and Creeks
8. Distribution of Water Sources in CO Community Water Systems54%19%17%7%1%2%
9. Colorado Demographics% Families Below the Poverty LevelAverage Household IncomeUnemploymentPopulation density (per SQM)Legend
10. To DoData processing and interpretationWhere is contamination occurring?What are the physical trends?NHDplus stream mappingFurther demographic studiesWho is at risk?County and Water System Identification