Commissioner means the Commissioner of the Department of Environmental Management. Correction means any minor change in the location of the river corridor boundary on a plan, the substitution or deletion of any name or names from the list of assessed owners adopted as part of any Order, or any typographical, grammatical or other correction which does not change the sense or meaning of any Order. Department means the Department of Environmental Management. Dredging means the removal of materials including, but not limited to, rock, bottom sediment, debris, loam, peat, soil, sand, refuse, plant or animal matter, in any excavating, grading, cleaning, deepening, widening or lengthening, either permanently or temporarily, of any land within the river corridor. Dredging shall include improvement dredging, maintenance dredging, backfilling or other dredging and subsequent refilling.
Feet means horizontal feet.
Filling means the placing of any material that raises, either temporarily or permanently, the existing elevation of any land within the river corridor. Improvement Dredging means any dredging in an area which has not previously been dredged or which extends the original dredged width, depth, length, or otherwise alters the original boundaries of a previously dredged area. Modification means any amendment as defined in 302 CMR 3.02. In tidal rivers or streams, it means the landward edge of the mean annual high tide. Where emergent wetland vegetation is present, this boundary shall be identified as the landward edge of specific vegetative species which require periodic flushing and input of salt water to survive.