The bed size for conventional stone and pipe systems shall be determined by the number of bedrooms, percolation rates, and total sewage flow per day as set forth in Table 1016-1 below:
Table 1016-1: Bed Size for Conventional Stone and Pipe Systems
In Square Feet for Varying Loads And Percolation Rates
Percolation Rate in Minutes Per Inch | Single-Family and Duplex - Number of Bedrooms Up to 10 | Commercial | |||
2 (300 GPD) | 3 (450 GPD) | 4 (600 GPD) | Each Add'l Bedroom (+150 GPD) | Per 100 GPD | |
2 | 400 | 560 | 750 | 188 | 125 |
4 | 425 | 617 | 825 | 210 | 140 |
6 | 450 | 675 | 900 | 233 | 155 |
8 | 500 | 750 | 1000 | 255 | 170 |
10 | 550 | 825 | 1100 | 278 | 185 |
12 | 600 | 900 | 1200 | 300 | 200 |
14 | 637 | 955 | 1275 | 319 | 213 |
16 | 675 | 1010 | 1350 | 338 | 225 |
18 | 712 | 1065 | 1425 | 357 | 237 |
20 | 750 | 1120 | 1500 | 375 | 250 |
22 | 775 | 1158 | 1550 | 387 | 258 |
24 | 800 | 1196 | 1600 | 400 | 266 |
26 | 825 | 1234 | 1650 | 412 | 274 |
28 | 850 | 1272 | 1700 | 425 | 282 |
30 | 875 | 1310 | 1750 | 437 | 290 |
32 | 900 | 1348 | 1800 | 449 | 298 |
34 | 925 | 1386 | 1850 | 462 | 306 |
36 | 950 | 1424 | 1900 | 475 | 314 |
38 | 975 | 1462 | 1950 | 488 | 322 |
40 | 1000 | 1500 | 2000 | 500 | 330 |
42 | 1050 | 1575 | 2100 | 525 | 347 |
44 | 1100 | 1650 | 2200 | 550 | 364 |
46 | 1150 | 1725 | 2300 | 575 | 381 |
48 | 1200 | 1800 | 2400 | 600 | 398 |
50 | 1250 | 1875 | 2500 | 625 | 415 |
52 | 1300 | 1950 | 2600 | 650 | 432 |
54 | 1350 | 2025 | 2700 | 675 | 449 |
56 | 1400 | 2100 | 2800 | 700 | 466 |
58 | 1450 | 2175 | 2900 | 725 | 483 |
60 | 1500 | 2250 | 3000 | 750 | 500 |
N.H. Admin. Code § Env-Wq 1016.01
(See Revision Note at chapter heading for Env-Wq 1000) #9086, eff 2-9-08