A.03.09_Buffer_Distance_Table.pdf

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LLA - NRM Vegetation Management Federal contract opportunity
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W912EF19Q0051
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Department of the Army Corps of Engineers Engineering District Walla Walla

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WATER

Table 5 Buffer distances and wind speeds by application method for chemical applications in the District.

Application Method

Hand/Select Spot Broadcast Aerial Max Wind Speed

(PESTICIDE APPLICATIONS SHALL NOT BE MADE IN OR TO THE

NA = No Application

<5 mph <10 mph

Application Buffer (Distance from Water)

0-15 ft

WATER, OR ALLOWED TO GET INTO THE WATER)

ORDINARY HIGH WATER MARK

2,4-D 2,4-D Aminopyralid NA Chlorsulfuron NA

Clopyralid Clopyralid Dicamba NA

(ONLY AQUATIC

LABELED

HERBICIDES)

15-50 ft

Glyphosate Glyphosate Herbicide Mixtures NA

Imazapic NA Imazapyr Imazapyr

Metasulfuron-methy Metasulfuron-methy Sulfometuron methyl NA

Triclopyr NA 2,4-D 2,4-D

Aminopyralid Aminopyralid Chlorsulfuron Chlorsulfuron

Clopyralid Clopyralid Dicamba Dicamba

Glyphosate Glyphosate Herbicide Mixtures Herbicide Mixtures

Imazapic Imazapic Imazapyr Imazapyr

Metasulfuron-methyl Metasulfuron-methyl Triclopyr Triclopyr

NA NA

Pyrethrins, Piperonyl butoxide, Butane, and

Propane (Skidoo)

Pyrethrins, Piperonyl butoxide, Butane, and

Propane (Skidoo) Chlorpyrifos (Dursban Pro) Chlorpyrifos (Dursban Pro) Beta-cyfluthrin (Tempo SC ultra Beta-cyfluthrin (Tempo SC ultra

50-100 ft

2,4-D 2,4-D 2,4-D Aminopyralid Aminopyralid NA Chlorsulfuron Chlorsulfuron NA

Clopyralid Clopyralid Clopyralid Dicamba Dicamba NA

Glyphosate Glyphosate Glyphosate Herbicide Mixtures Herbicide Mixtures NA

Imazapic Imazapic NA Imazapyr Imazapyr NA

Metasulfuron-methyl Metasulfuron-methyl NA NA

Sethoxydim Sethoxydim NA Sulfometuron methyl Sulfometuron methyl NA

Triclopyr Triclopyr NA Pyrethrins, Piperonyl butoxide, Butane, and

Propane (Skidoo)

Pyrethrins, Piperonyl butoxide, Butane, and NA

Propane (Skidoo) Chlorpyrifos (Dursban Pro) Chlorpyrifos (Dursban Pro) NA Beta-cyfluthrin (Tempo SC ultra Beta-cyfluthrin (Tempo SC ultra NA

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Application Method

Hand/Select Spot Broadcast Aerial

100-300 ft

2,4-D 2,4-D 2,4-D

NA

Aminopyralid Aminopyralid Aminopyralid Chlorsulfuron Chlorsulfuron Chlorsulfuron

Clopyralid Clopyralid Clopyralid Dicamba Dicamba Dicamba

Glyphosate Glyphosate Glyphosate Herbicide Mixtures Herbicide Mixtures Herbicide Mixtures

Imazapic Imazapic Imazapic Imazapyr Imazapyr Imazapyr

Metasulfuron-methyl Metasulfuron-methyl Metasulfuron-methyl Picloram Picloram Picloram

Sethoxydim Sethoxydim Sethoxydim Sulfometuron methyl Sulfometuron methyl Sulfometuron methyl

Triclopyr Triclopyr Triclopyr Pyrethrins, Piperonyl butoxide, Butane, and

Propane (Skidoo)

Pyrethrins, Piperonyl butoxide, Butane, and

Propane (Skidoo)

Chlorpyrifos (Dursban Pro) Chlorpyrifos (Dursban Pro) NA Beta-cyfluthrin (Tempo SC ultra Beta-cyfluthrin (Tempo SC

300+ ft

2,4-D 2,4-D 2,4-D NA

Aminopyralid Aminopyralid Aminopyralid NA Chlorsulfuron Chlorsulfuron Chlorsulfuron NA

Clopyralid Clopyralid Clopyralid NA Dicamba Dicamba Dicamba NA

Glyphosate Glyphosate Glyphosate Glyphosate Herbicide Mixtures Herbicide Mixtures Herbicide Mixtures NA

Imazapic Imazapic Imazapic Imazapic Imazapyr Imazapyr Imazapyr NA

Metasulfuron-methyl Metasulfuron-methyl Metasulfuron-methyl NA Picloram Picloram Picloram Picloram

Sethoxydim Sethoxydim Sethoxydim Sethoxydim Sulfometuron methyl Sulfometuron methyl Sulfometuron methyl NA

Triclopyr Triclopyr Triclopyr Triclopyr Pyrethrins, Piperonyl butoxide, Butane, and

Propane (Skidoo)

Pyrethrins, Piperonyl butoxide, Butane, and

Propane (Skidoo)

Chlorpyrifos (Dursban Pro) Chlorpyrifos (Dursban Pro) NA NA Beta-cyfluthrin (Tempo SC ultra Beta-cyfluthrin (Tempo SC

The buffer is measured from the ordinary high water mark (OHWM)6. For the purposes of this document, the OHWM shall be the point from which all buffers in this document shall be measured, and includes, but is not limited to rivers, streams, lakes, ponds, reservoirs, ditches draining into fish-bearing waters, seasonal streams, intermittent streams, ephemeral streams, and concrete channels draining into or containing fish. For reservoirs on Corps lands, the OHWM is defined as the maximum normal operating pool elevation. The wind speeds have been limited to two categories for implementation, and the wind direction must not be in the direction of the adjacent water body during applications.

6 The OHWM is defined in 33 CFR §329.11.

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