Number of units (or stations for trailers) required when no pumping service is provided
50/50 mix of men & women
1 unit provides approximately 200 uses.
It is assumed an individual uses a unit about every 4 hours.

Average hours at the event
People Attending
1
2
3
4
5
6
7
8
9
10
0-50
1
1
1
2
2
2
2
2
2
2
50-100
2
2
2
2
3
3
3
3
3
3
100-250
3
3
3
4
4
4
4
4
6
6
250-500
4
4
4
6
6
6
8
8
8
8
500-750
4
4
6
6
6
8
8
8
10
10
750-1000
6
6
6
8
8
8
12
12
12
12
2000
8
8
8
8
8
12
12
12
12
16
3000
8
8
10
10
10
12
16
16
20
20
4000
8
8
12
12
16
16
20
24
24
28
5000
12
12
12
16
20
30
30
30
30
34
6000
12
12
16
16
20
30
30
36
36
40
7000
12
12
16
20
30
32
40
40
52
52
8000
12
12
20
24
32
32
40
44
48
54
9000
16
16
24
28
40
40
52
52
60
64
10000
16
16
28
40
40
52
52
60
60
72