The document compares the first day of school to wastewater treatment in 7 ways: 1) Both are necessary even if not exciting. 2) Major infrastructure and school supplies can be very expensive. 3) Careful planning goes into choosing appropriate attire. 4) Tasks are better with friends. 5) Unusual animals and creatures may be encountered. 6) Extensive paperwork and documentation is required. 7) Hands-on work can be enjoyable.