The final week of the APEC summit begins next Monday, and that means thousands of hungry delegates and heads of state will be seeking good places to eat in Lima. Peru’s capital city may be home to the best cusine in South America, but not all its restaurants are up to par. In fact, some eateries violate sanitation codes and use contaminated tap water (with e coli) to wash their produce.  (Visitors cannot drink the tap water in Lima because it contains foul bacteria and heavy metals; many locals have adjusted to it, however.) To prevent epic outbreaks of diarrhea among delegates, APEC and Peru’s Ministry of Health have instituted…