Table 2.

Sample Descriptive Statistics for Key Variables (n=256 households with As >10 μg/L wells)

Variables		Percentage
What was the highest arsenic level measured for your well?^a	<10 μg/L	6.5%
	10–50 μg/L	46.8%
	51–100 μg/L	9.7%
	>100 μg/L	5.2%
	Don’t remember	31.9%

What is the highest arsenic level you consider safe?	<10 μg/L	76.71%
	10–50 μg/L	19.4%
	51–100 μg/L	3.9%
	>100 μg/L	0%

Did you take any actions because of the arsenic level in your well water?	Installed POE Treatment	8.2%
	Installed POU Treatment	34.4%
	Switched to Bottled Water	26.6%
	Other Mitigation Action^b	3.9%
	No Action Taken	27%

If you did not take any arsenic-related action, why not?^c	Treatment too Expensive	19.9%
	Not Concerned about As Level	12.5%
	Didn’t Know What to Do	3.5%
	Didn’t Know Who to Contact	2.3%
	Other	14.8%

Remembered As levels correlated with actual As levels measured by Columbia University r=.664, p<.001; Actual measurement distribution was 78.4% 10–50 μg/L, 15.3% 51–100 μg/L, and 6.3% >100 μg/L

e.g. carrying water from another source, mixing 50/50 bottled water, or drilled new well

This question was not answered exclusively by those who took no As action. Some respondents chose to select a reason why they took alternative action – such as switching to drinking bottled water or other, as opposed to installing a water treatment system for arsenic. For responses from only those who took no mitigation action at all, see Table 4.

POU = Point of use; POE = Point of entry