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Matthew Del Muro
B.S. Environmental and Earth Science
University of Southern California | 2015
Los Angeles County Watersheds:
Analyzing the Spatial Distribution of Poverty
and Other Factors in Connection to Drinking
Water Pollution
Image: David McNew, Getty Images
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Overview
Call for Water Transparency
Debunking Los Angeles Water Myths
GIS to Formalize Environmental Injustices
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Watershed Myth
Project began to debunk common misconception of LA Water
availability.
Where does Water come from?
Outside Los Angeles, water is obtained from local sources.
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Source: http://ca.water.usgs.gov/owens/overview.html
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Collection of Data
Annual City Drinking Water Reports (2012)
Focuses on Groundwater Exclusively
Census Data (2010-2012)
Socioeconomic Data
Sources:
Basemap: See Sources Above
Los Angeles Boundary: Esri Online Software
Counties Outline: Esri Online Software
Cities Shapes: US by Zipcode, Esri Online Software (2013)
Inset Map: Counties Outline: US Counties, Esri Online Software
(2013
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Collection of Data
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GIS Utilization
Los Angeles County GIS Department
Morans Spatial Analysis
SPSS
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Spatial Distribution of Poverty Percentages
Spatial Distribution of Minority Percentages
Morans I Application
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Spatial Distribution of Gross Alpha Emitters
Spatial Distribution of Manganese Concentrations
Spatial Distribution of Arsenic Concentrations
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SPSS ANOVA Test
One-Way Variance Test:Comparing Poverty Percentages changes to
changes in other datasetsLower Sig. number expresses stronger
relationship
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Cities who rely on Groundwater
Groundwater vs. Imported Water as Base GW:
85% of Population are Minority
17% of Population is under Poverty Line
Average Arsenic (PPB) = 1.37
Significantly Higher in Barium and Nitrate
Imported 50% of Population are Minorities
10% of Population is under Poverty Line
Average Arsenic (PPB) = .57
Significantly Higher in Aluminum
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Health Issues in Communities
Maywood and East Los Angeles
Arsenic throughout Los Angeles County
Loss of Transparency
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Health Issues in Communities
Arsenic throughout Los Angeles County Water
Lack of Treatment
Fracking Dangers to Groundwater
Groundwater Use versus Reliance
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Contact Info
Matthew Del Muro
University of Southern California
[email protected]
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Thank You
Los Angeles Times
California Watch Report
Los Angeles County GIS Center
USGS GIS Department
Spatial Studies Institute
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Works Cited
Works:American Community Survey, Census of Population and
Housing, State and County
Housing Unit Estimates, County Business Patterns, Nonemployer
Statistics, Economic Census, Survey of Business Owners, Building
Permits, Consolidated Federal Funds Report. March 14, 2013.
History of the Los Angeles River. Los Angeles County Department
of Public Works. 2013.
http://www.ladpw.org/wmd/watershed/LA/History.cfm. May 1,
2013U.S. Census Bureau: State and County QuickFacts. Data derived
from Population
Estimates, USGS Watershed Boundary Data -
http://nhd.usgs.gov/wbd.html, March 20, 2014Water Quality Reports
2012 Cities within Los Angeles County
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ArcGIS Maps Data CitedMap Created by Matthew Del Muro, ArcGIS
(2013).Fig 1.:Basemap: See Sources on Map
Los Angeles Boundary: Esri Online SoftwareWatershed Boundaries:
EPA Watershed Boundary ShapefileCounties Outline: US Counties, Esri
Online Software (2013)Cities Shapes: US by Zipcode, Esri Online
Software (2013)
Inset Map: US States: US States, Esri Online Software (2013)Fig
2 :Basemap: See Sources Above
Los Angeles Boundary: Esri Online SoftwareWatershed Boundries:
EPA Watershed Boundry ShapefileCounties Outline: US Counties,
EsriOnline Software (2013)Cities Shapes: US by Zipcode, Esri Online
Software (2013)Inset Map: Counties Outline: US Counties, EsriOnline
Software (2013)
Fig. 3: US Census 2000
http://www.economicrt.org/graphics/LA_City_Poverty-web.jpg,
2001.USGS GIS Watershed. May 1, 2013.
Fig. 4: Main Map:Basemap: See Sources AboveLos Angeles Boundary:
Esri Online SoftwareWatershed Boundries: EPA Watershed Boundry
ShapefileInset Map:US States: Esri Online Software
Fig 5: Main Map:Basemap: See Sources AboveLos Angeles Boundary:
Esri Online SoftwareWatershed Boundries: EPA Watershed Boundry
ShapefileInset Map:US States: Esri Online Software
