Figure 2 depicts how sewage sludge was utilized between 1995 and 2002. Important points shown are that the amount of Class B biosolids that are land applied has been steadily decreasing while Class A biosolids production has increased.

YEAR

SEWAGE SLUDGE PRODUCED IN MAINE

 Total Sewage Sludge Produced in Maine
Processed in Maine to Class A Standard Processed in Maine to Class B Standard Other Process
Distributed in Maine or Out-of-State Spread in Maine Stored for Future Spreading in Maine Other Use in Maine Landfilled Shipped Out-of-State
1995 42976 57124 12967 0 13187 0 126254
1996 51872 87243 20108 0 24709 2259 186191
1997 49654 83484 18754 3352 2307 41 157592
1998 72600 83084 7202 2934 3950 0 169770
1999 64927 55070 9906 8032 10396 0 148331
2000 73652 43950 5519 192 36560 402 160275
2001 77451 37497 2965 3374 26617 2613 150517
2002 83634 34821 907 10 16237 19314 154923