Let me help you save some of your grant money

We're entering a brave new world of drug testing:

Researchers have figured out how to give an entire community a drug test using just a teaspoon of wastewater from a city's sewer plant.

[...]

Oregon State University scientists tested 10 unnamed American cities for remnants of drugs, both legal and illegal, from wastewater streams. They were able to show that they could get a good snapshot of what people are taking.

[...]

[Jennifer Field, the lead researcher and a professor of environmental toxicology at Oregon State] plans to start a survey for drugs in the wastewater of at least 40 Oregon communities.

Let me suggest you save a few bucks and not test the wastewater in Eugene. You won't need any fancy urinalysis to tell you that that city is stoned out of its gourd.