Literal question
<span class="h2">Chapter C. Household information</span></p>
<p>21. The toilet wastewater goes to...</p>
<div class="i1">[] 1 Hole or pit?<br />[] 2 Septic tank?<br />[] 3 Public system (sewer)?<br />[] 4 Surface of the earth, stream, river, etc.?</div>
Interviewer instructions
<span class="h3">C. Information about the household</span></p>
<p><span class="em">Question 21: The bathroom drains to...</span></p>
<p>21. The bathroom drains to...</p>
<p>Public network (sewer): when the bathroom has a system of pipes through which the human residue drains.</p>
<p>Septic well: when the bathroom is connected to a septic tank.</p>
<p>If the dwelling has more than one type of bathroom, note the most modern drain.