The DEP also pointed out that the most of the waste could have been disposed of at little or no cost at the Lawrence Department of Public Works.
Lawrence is one of 20 municipalities statewide where the DEP is installing the cameras. About 100 illegal dumpers have been identified using the cameras so far.
The eight arrested in Lawrence are:
Jeovanny Gonzalex, 233 Andover St., Lawrence
Juan Ortega, 510 Lowell St., Lawrence;
Jose Nieves, 34 Emerson St., Haverhill;
Amparo Coste, 99 Oakland Ave., Methuen;
Leonel Alonso, 18 Tudor St., Lawrence;
Jaime Villa, 33 Bennington St., Lawrence;
Juan Torres, 14 Hampshire Rd., Methuen;
Enrique Arias, 139 Franklin St., Lawrence.