T. M. Gates, Inc

T. M . Gates, Inc.

Environmental and Sanitary Wastewater Consultants

Palmiter Method Example

This site is located in a stream bank that receives large amounts of runoff during rain events. During significant rain events, the stream maintains a 2'-8' water level that travels at 10-20 mph. During dry periods the stream is almost dry. An area of the stream is bordered by an old industrial landfill, which was being undercut by the stream. The pictures below are arranged in chronological order and document the project from start to finish.

PROJECT INITIATION

1 WEEK AFTER PROJECT INITIATION

1.	Creek flow in direct contact with bank (landfill).
2.	Active erosion and undercutting of landfill materials.
3.	Leachate seepage from bank.

1.	Exposed landfill
2.	Final positioning of log (black locust) using small blade on front of log skidder.
3.	Final positioning of log (black locust) using small blade on front of log skidder.

1.	Exposed landfill
2.	Final positioning of log (black locust) using small blade on front of log skidder.
3.	Final positioning of log (black locust) using small blade on front of log skidder.

2 WEEKS AFTER PROJECT INITIATION

1.	Area cleared of unwanted obstructions (log jams, etc.)
2.	Log pile secured in place with elevator cable.
3.	Elevator cable securing log pile. Log pile being secured is actually out-of-sight behind log pile shown in picture

1.	Channel relocation away from bank (landfill).
2.	Initial accumulation of sediments deposited by the stream.
3.	Absence of vegetative cover due to insufficient time since channel relocation and sediment deposition.

1 MONTH AFTER PROJECT INITIATION (AFTER 2" RAINFALL)

1.	Partially hidden landfill.
2.	Channel location approximately twenty (20) feet from original bank.
3.	Formation of new bank by the natural deposition of creek sediments.
4.	Substantial natural vegetation growth which serves to stabilize, protect and propagate newly established bank.

1 YEAR AFTER PROJECT INITIATION

1.	Installation of clay cap to cover landfill.
2.	Riprap installed to prevent slope failure.
3.	Collection sump for future landfill leachate collection
4.	Bank is currently stable with no signs of erosion.

1.5 YEARS AFTER PROJECT INITIATION