CHAPTER 8 SANITARY SEWER SYSTEMS
Review Question Page References
(1) 221 (7) 225 (13) 230
(2) 222 (8) 227 (14) 230
(3) 223 (9) 227 (15) 233
(4) 223 (10) 227 (16) 236
(5) 223 (11) 229 (17) 236
(6) 223 (18) 236
(19) 240 (25) 249
(20) 241 (26) www.envirosources.com
(21) 242
(22) 242
(23) 243
(12) 229 (24) www.paris.org/kiosque/mar97/egouts.html
Solutions to Practice Problems
1. 250 ac x 12 people/ac x 100 gal/person/d = 300,000 gpd (average)
3. Slope = (305.55 – 303.05)/100 = 0.025 = 2.5 percent
4. Reach 1: S = (350.00 – 347.87)/100 = 0.0213
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5. W = C x w x B2 (Equation 8-4)
6. H = 3 – 0.2 = 2.8; H/B = 2.8/0.9 = 3.1; From Figure 8.18, C= 1.9
7. crushing strength (extra) = 32.0 kN/m
8. allowable Infiltration = 45 L/d/mm/km x 0.75 km x 600 mm x
9. area = π x 42/4 = 12.6 ft2
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