Aminopyralid (00 5 1 00, 005209, 00521 9 ) Screening Level Usage An a lysis (S LUA)

Dat e : Marc h 1 8, 2014 What is a Screening Level U sage Analysis ( S LUA ) ? o Available estimates of pesticide usage data for a particular active ing redient that is used on agricultural crops in the Uni t ed States. o Pesticide usage data obtained from various sources. The data are then merged, averaged, and round e d so that the presented information is not proprietary, business confidential, or trade secret. What does it contain?

o Pesticide usage data for a sing le active ingre d ient only. oAgricu ltural use sites (crops) t h a t the pesticide is reported to be used on. . o Available pestici de usage information from U.S. states that produce 80% or more of a crop, in most cases, or less than 80%, in rare cases, depending on the scope of the survey and available resources. o Annual percent of crop treated (av e r a ge & maximum) for each agricultural crop. o Average annual pounds of the pesticide applied for each agricultural crop ( i.e ., forthe states surveyed, not for the ent ire United States ). What a ss um p t i ons c an 

### I make abou t the rep o r t ed data? o Average pou n d s of active i n g redient applied- V a lu es are calculated by merging pesticide usage data sources together; averaging across all observations, then rounding. N ote : 

## If the estimated value is less than 500, then that value is labeled < 500. Estimated values between 500 & < 1,000,000 are rounded to 1 significant digit. Estimated values of 1,000,000 or greater are rounded to 2 significant digits.) o Average p ercent of c r op treated - Values are calculated by merging data sources together; averaging by year, averaging across all ye a r s , & rounding to the nearest multiple of 5 . N ote: 

## If the es t

imated value is l ess than 2. 5, then the value is labeled < 2. 5 . 

## If the estimated value is less than 1, then the value is labeled <1. o Maximum percent of crop treated - Value is the single maximum value reported across all data sources, across all years, & rounded up to the nearest multiple of 5. Note: 

## If the estimated value is less than 2.5, then the value is labeled < 2.5. Wha t are the data s o u rces u sed?

o USD A -N ASS (United States D e partment of Agricu lt

u re' s Nation a l Agricultural Statistics Service )- pesticide usage data from 2004 to 2012. o Private pesticide market resea r c h - pesticide usage data from 2004 to 2012. o Cali f o r nia Department of P e sti c i de Regu l ati on (D P R ) Pesticide Use Report ing (PUR) data for 2004 to 2011. What are the limitations to the data?

o Additional re g i stere d uses may exist but are not included because the available surveys do not report usage (e.g., small acreage crops ). o Lack of reported usage data for the pesticide on a crop does n ot im p ly zero usag e . o U sage data on a particular site may be noted in data sources, but not q uantif ie d. In these in stances, the site would not be reported in the SLUA. o Non - agricultural use sites (e.g., turf, post-harvest, mosquito control, etc.) are not reported in the SLUA. A sepa rat e requ es

t must be made to receive these estimates. o Some sites show some use, even though they are not on the label. This usage could be due to various factors , including , but not l imited to . Se ct io n 18 requests, existing stocks of th e chemical, data collection errors, and experimental use permits ( EUPs ).

### March 18, 2 0 14



### Screeni n g Le vel E s timates of A g ri cu l tural Uses o f Ami n o py ralid (005100, 00520 9 , 005 2 1 9) 

### S o r ted Al phabetically - R epo r ti ng Time: 20 04 - 2012



### Percent Crop Treated Cr o p Average Lbs . A.I. Applied Ann ually A v erage Maximum 1 

### Corn <500 < 1 <2.5 2 

### Fallow <500 < 1 <2.5 3 

### Pastu re 90,000 <2.5 <2.5 4 

### Wheat 1,000 <1 <2 . 5 All numbers rounde d .

< 5 00 Less than 500 p ounds of active ingredient < 2.5 Less than 2.5 percent of crop treated < I Less than I percent of crop treated SLUA data sources inclu d e: U SD A -NASS (United States Department of Agr i culture's Nat i onal Agricultural Statistics Service ) P rivate Pesti ci de M a rket Research These results reOect am a l gamated data developed by the Agency and are re l easable to the pub l i c.