sir2010-5199 nielsen fig15 v2 - usgs
TRANSCRIPT
44°
46°
70°
68°
EXPLANATIONPercentage exceeding 10 micrograms per liter
Less than or equal to 3.00
3.1 – 9.0
9.1 – 17.0
17.1 – 26.0
26.1 – 35.0
35.1 – 46.0
46.1 – 62.0Fewer than 20 sampled wellsState boundary
Base from USGS and Maine Office of GIS digital line graphs, 2005Projection UTM, Zone 19N, NAD 83Scale 1:24,000
0 30 60 MILES
0 30 60 KILOMETERS
MAINE
Figure B. Percentage of wells in each town with arsenic concentrations greater than 10 micrograms per liter in Maine, 2005–09. Towns shown have 20 or more wells.