Lisa Swanson
Black Hawk County, IA – Environmental Health Officer/GIS
Nikki Breitsprecker
City of Dubuque, IA – GIS Coordinator/Analyst
Public Health Services
•Child Health
•Nutrition
•School Based
•Immunization
•Community Health
•Elderly care
•Vaccination
•Oral Health
•Communicable Disease
•STDS
•Disease Outbreak
•Infectious Disease
•Minority Health
•Environmental Health
•Food
•Water
•Air
•Land
•Buildings
Environmental Health Services
Role of GIS
y
y
y
y
y
y
Planning
Tracking
Routing
Modeling
Need Assessment
Communication
Nikki Breitsprecker
City of Dubuque Iowa – GIS Coordinator/Analyst
City of Dubuque Health Department
y
y
y
y
y
y
Animal Control
Deer Management
Community Health Planning
Food/Restaurant Inspections
Noise Complaints
Environmental Nuisances
Lead Hazard Reduction Project
y Partnership between City’s Health and Housing/Community Development Departments
y Childhood Lead Paint Poisoning Prevention Project
y Recent GIS Integration
Project Challenges
y Dubuque’s housing stock is the oldest in the State of Iowa
y 37% of homes built before 1940
y 86% of homes built before 1978
y Over 13,000 low/very‐low income housing units in City contain lead‐based paint y Blood level rates for children have been as high as
4 times the national average
Mapping the Problem
y City maintains a database of all lead tests for children – testing usually occurs at 1‐year well‐child appointment
y City used GIS to geocode addresses of tests to identify specific areas of town most‐prone to lead poisoning
City of Dubuque – Total Tests – Jan 1992‐ May 2006
City of Dubuque – ‘Elevated BLL’ – 10 or greater
City of Dubuque – ‘Elevated BLL’ – 19 or greater
Project Successes
y 726 residential units made lead‐safe
y 1,193 lead professionals trained in contracting, assessing, and inspecting
y $1,473,000 in matching funds generated to support federal funds
y 95% of grant funds to lead paint remediation contractors paid to Section 3 (low‐income) businesses
y Target area decrease in blood lead levels in Dubuque children age 6 and younger
y 1997‐2007 – 4.4% decrease in elevated blood lead levels in target area
City of Dubuque – Target Census Tracts
Tract 5
Tract 6
Tract 2
Tract 7.01
Tract 1
Tract 7.02
City of Dubuque – Target Census Tracts
Tract 5
Tract 6
Tract 2
Tract 7.01
Tract 1
Tract 7.02
City of Dubuque – Target Census Tracts
Tract 5
Tract 6
Tract 2
Tract 7.01
Tract 1
Tract 7.02
Project Wrap‐up
y Washington Neighborhood is being targeted for overall improvement
y City is seeing signs of success with the rehabilitation of the neighborhood
y Will revisit blood lead levels within the next few years to see if levels are trending downward in the neighborhood and overall throughout the City due to efforts made
Lisa Swanson
Black Hawk County Iowa – Environmental Health Officer/GIS
Private Water Well Testing
y Grants‐to‐Counties program
y
Funds for the Grants‐to‐Counties program are provided as mandated by the Groundwater Protection Act of 1987
y Testing routines
y Tracking nitrate trends, problem areas
y Post‐flood revisits
y Well inspections
y
Attributes, condition, location (GPS)
y DNR PWTS system
y
Well registration
Areas that
haven’t had
recent testing
Area of recent
water testing
activity
CEDAR FALLS
Using GIS to generate route plans
y
Select parcels with house numbers in target area
y
y
y
Entire township, along a street, rural development
Residential housing vs. commercial or farm land
Remove from selection those that intersect with test results >2006
y
y
Query builder, select by attribute or location, method
Export listing of residents left in the
selection.
Send mailing announcing testing
y
y
Mail‐merge form letters & envelopes
Well Permitting
y Regulatory
y Approval based on site assessment and health department evaluation
y LUST sites database (IDNR)
1000ft issue
y Plume issue
y
y Next level of
assessment
y Separation Distance
grant project
Environmental Assessments
Incorporating the Site Assessments
Control p
oints
• each chemical = layer
• 2-5 layers per site
• control points used to
georeference
• Graphics-To-Features tool
allows you to use the curve draw
(graphic) and then move the nice
curved lines into the plume
feature.
Disease Vector/Mosquito
Surveillance
y West Nile Virus
y Partnerships with ISU entomologists
Light trap data
y Sentinel chicken flock
y
y UNI biologists – graduate students
y Larvaciding efforts
Chemical tracking
y Reapplication
y Activity
y
Distribution of State Monitoring Sites
http://www.idph.state.ia.us/adper/common/pdf/wnv/wnv_sites_map_2006.pdf
Source: www.idph.state.ia.us/adper/common/pdf/wnv/wnv_map_2006.pdf
Source: http://www.idph.state.ia.us/adper/common/pdf/wnv/wnv_map_2007.pdf
GIS benefits the surveillance effort
y Identification of problem areas
y
y
y
y
DOT data for ditch condition
Flood plain data
Program/activity history
Field officer experience
y Treatment records
y
y
Reapplication – treatment effectiveness
Inventory
y Field maps, GPS
y
y
Accuracy
Time efficiency
In Summary
y
y
y
y
Reduced “guess work” and estimation
Planning efficiency
Program tracking
Demonstration of need, trends
Questions?
y Nikki Breitsprecker
City of Dubuuque, IA
563/589‐4174
nbreitsp@cityofdubuque.org
y Lisa Swanson
Black Hawk County, IA
319/292‐2202
lswanson@co.black‐hawk.ia.us