Heavy metals in the sludge depends mostly on the town. Metal plating, fabrication shops, tanneries, put out a lot of heavy metals. Our town has almost no “industry”, And our sludge has very little metals in it.Aren’t these bio solid type products loaded with PFAS and heavy metals ?
By John Flesher, Associated Press Beef produced at a small Michigan farm was found to contain toxic “forever chemicals” after the cattle were fed crops grown with fertilizer made from contaminated wastewater biosolids, state officials said Friday. A consumption advisory issued by state agencies...www.greatlakesnow.org
PFAS is something new. I haven’t read much about it. To my knowledge, as of now it isn’t required to test for PFAS. I’m sure that will change in the near future.