Chapter 10: On-Site Wastewater Treatment. 1  community or private drinking water supplies are not threatened; 2  direct human exposure is not possible; 3  waste is inaccessible to vectors, insects, rodents, or other possible carriers; 4  all environmental laws and regulations are complied with; and. 5  odor or aesthetic nuisances are not created.
The last major use of the comma, semicolon, and period hierarchy is in Erlang (1986), where commas separate expressions; semicolons separate clauses, both for control flow and for function clauses; and periods terminate statements, such as function definitions or module attributes, not the entire program.
Ordinarily items in a series are separated by commas, but replacing them with semicolons can minimize confusion if commas are needed in one or more of the items. This use of the semicolon is especially common in business and technical writing. Examples: