N.H. Code Admin. R. Env-Wq 402.10
(a) Minimum nitrate setback distances to property lines shall be as set forth in Table 402-1 below:
Table 402-1: Minimum Nitrate Setback Distance To Property Line
Design Flow (gpd)
for each system
Hydraulically
Down-gradient (feet)
Hydraulically
Side-gradient (feet)
Hydraulically
Up-gradient (feet)
1,001 – 1,100
55
28
14
1,101 – 1,200
60
30
15
1,201 – 1,300
65
33
17
1,301 – 1,400
70
35
18
1,401 – 1,500
75
38
19
1,501 – 1,600
80
40
20
1,601 – 1,700
85
43
22
1,701 – 1,800
90
45
23
1,801 – 1,900
95
48
24
1,901 – 2,000
100
50
25
2,001 – 2,100
105
53
27
2,101 – 2,200
110
55
28
2,201 – 2,300
115
58
29
2,301 – 2,400
120
60
30
2,401 – 2,500
125
63
32
2,501 – 3,000
150
75
37
3,001 – 3,500
175
88
44
3,501 – 4,000
200
100
50
4,001 – 4,500
225
113
57
4,501 – 5,000
250
125
63
5,001 – 6,000
275
138
69
6,001 – 7,000
300
150
75
7,001 – 8,000
320
160
80
8,001 – 9,000
340
170
85
9,001 - 10,000
350
175
88
10,001 - 15,000
435
213
107
15,001 - 19,999
500
250
125
Source. (See Revision Note at part heading for Env-Wq 402) #8955, eff 7-26-07; ss by #11036, eff 3-1-16