If it’s processed correctly before using then no big deal.
We used Milorganite in the ‘50s and 60s on the lawn and garden.
From Wikipedia:
Milorganite is the brand name of an organic nitrogen fertilizer produced by the Milwaukee Metropolitan Sewerage District. Popularized in the United States during the 1940s and 1950s, it consists of processed sludge from the Milwaukee Metropolitan Sewerage District Jones Island Wastewater Treatment Plant in Milwaukee, Wisconsin. The fertilizer is made up of microbes that have digested nutrients from the sewage stream along with added iron, used to strip phosphorus from the waste water flowing into Lake Michigan.
The name Milorganite is a contraction of the phrase Milwaukee Organic Nitrogen, and was the result of a 1925 naming contest held in National Fertilizer Magazine.
Milorganite(r) 6-2-0 is sold throughout the United States, Canada, the Caribbean and Pacific Rim as a homeowner and golf course fertilizer.
You can still buy it.
Video: http://www.milorganite.com
Big *If*.
It’s the government, you know.