                 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                            WASHINGTON, D.C.  20460

                                                  OFFICE OF CHEMICAL SAFETY AND
                                                  POLLUTION PREVENTION

MEMORANDUM

DATE:  	11/7/2014

SUBJECT:	Metconazole Acute and Chronic Aggregate Dietary (Food and Drinking Water) Exposure and Risk Assessment for the Section 3 Registration Actions on Pea and Bean, Dried Shelled, except Soybean, Subgroup 6C and the Sunflower Subgroup 20B; Expansion of the Canola Tolerance to the Rapeseed Subgroup 20A; and Conversion of the Established Stone Fruit and Tree Nut Crop Groups to the Stone Fruit Group 12-12 and the Tree Nut Group 14-12.

PC Code:  125619
DP Number:  D423622
Decision No.:  487580
Registration No.:  59639-147
Petition No.:  4E8244
Regulatory Action:  Section 3 Registration
Risk Assessment Type:  Dietary Exposure
Case No.:  NA
TXR No.:  NA
CAS No.:  125116-23-6
MRID No.:  NA
40 CFR:  §180.617

FROM:	Nancy Dodd, Chemist
		Risk Assessment Branch III (RAB3)
      Health Effects Division (HED; 7509P)

THROUGH:  Mohsen Sahafeyan, Chemist
		Seyed Tadayon, Chemist
            Dietary Exposure Science Advisory Council (DESAC)

TO:		Barry O'Keefe, Risk Assessor
      RAB3/HED (7509P)
			and
		Barbara Madden, PM #05
      Minor Use and Emergency Response Branch
      Registration Division (RD; 7505P)

Executive Summary

Acute and chronic aggregate dietary (food and drinking water) exposure and risk assessments were conducted using the Dietary Exposure Evaluation Model software with the Food Commodity Intake Database (DEEM-FCID) Version 3.16.  This software uses 2003-2008 food consumption data from the U.S. Department of Agriculture's (USDA's) National Health and Nutrition Examination Survey, What We Eat in America (NHANES/WWEIA).  The analyses were conducted in support of a human-health risk assessment for the proposed Section 3 uses of metconazole on the pea and bean, dried shelled, except soybean, subgroup 6C and the sunflower subgroup 20B; expansion of the canola tolerance to the rapeseed subgroup 20A; and conversion of the established stone fruit and tree nut crop groups to the stone fruit group 12-12 and the tree nut group 14-12.  This memorandum was reviewed by two peer reviewers of the DESAC, per DESAC SOP 2012.1.

Acute Dietary (Food and Drinking Water) Exposure Assessment

An unrefined acute dietary (food and drinking water) exposure assessment was conducted.  The residue levels used in the assessment were the established or recommended tolerance levels except for cereal grains and livestock commodities.  Since cereal grains and livestock commodities include metabolites as residues of concern in the risk assessment, maximum residue values for the metabolites from field trials were added to the metconazole tolerance levels.  DEEM default processing factors or empirical processing factors were used, as available.  It was assumed that 100% of the crops were treated.

The estimated drinking water concentration (EDWC) used in the acute dietary assessment was provided by the Environmental Fate and Effects Division (EFED) and incorporated directly into the acute assessment.  The groundwater EDWC of 51.8 ug/L (ppb) generated by the PRZM-Ground Water (PRZM-GW) model was used in the acute dietary assessment.  The highest application rate, which was the application rate for turf, was modeled using the WI Central Sand Scenario in estimating metconazole EDWCs for groundwater.

The acute dietary (food and drinking water) exposure to metconazole is below HED's level of concern for females 13-49 years old, the only population subgroup of concern.  For the general U.S. population, including infants and children, an appropriate dose/endpoint attributable to a single dose was not observed in the available oral toxicity studies.  The acute dietary exposure estimate at the 95[th] percentile is 4.6% of the aPAD for females 13-49 years old, the only population subgroup of concern.

Chronic Dietary (Food and Drinking Water) Exposure Assessment

An unrefined chronic dietary (food and drinking water) exposure assessment was conducted.  The residue levels used in the assessment were the established or recommended tolerance levels except for cereal grains and livestock commodities.  Since cereal grains and livestock commodities include metabolites as residues of concern in the risk assessment, maximum residue values for the metabolites from field trials were added to the metconazole tolerance levels.  DEEM default processing factors or empirical processing factors were used, as available.  It was assumed that 100% of the crops were treated.

The EDWC used in the chronic dietary assessment was provided by EFED and incorporated directly into the chronic assessment.  The surface water EDWC of 43.9 ug/L (ppb) generated by the Surface Water Concentration Calculator (SWCC) model was used in the chronic dietary assessment.  The SWCC model was used to generate EDWCs for the Tier II aquatic exposure assessment based on the cranberry scenario.  The SWCC is a graphical user interface that runs the Pesticide Root Zone Model (PRZM, v 5, November 15, 2006) and the Variable Volume Water Body Model (VVWM, 3/6/2014) (USEPA, 2006b).  The default percent cropped area (PCA) factor of 1.0 was used.

The chronic dietary (food and drinking water) exposure to metconazole is below HED's level of concern for the general U.S. population and all population subgroups.  The chronic dietary exposure estimates are 6.6% of the cPAD for the general U.S. population and 14% of the cPAD for children 1-2 years old, the most highly exposed population subgroup.

Cancer Exposure Results and Characterization

Metconazole was classified as "not likely to be carcinogenic to humans;" therefore, a cancer dietary assessment was not performed.

I.	Introduction

Dietary risk assessment incorporates both exposure and toxicity of a given pesticide.  For acute and chronic assessments, the risk is expressed as a percentage of a maximum acceptable dose (i.e., the dose which HED has concluded will result in no unreasonable adverse health effects).  This dose is referred to as the population adjusted dose (PAD).  The PAD is equivalent to the point of departure (POD, NOAEL, LOAEL, e.g.) divided by the required uncertainty or safety factors.

For acute and non-cancer chronic exposures, HED is concerned when estimated dietary risk exceeds 100% of the PAD.  References which discuss the acute and chronic risk assessments in more detail are available on the EPA/pesticides web site:  "Available Information on Assessing Exposure from Pesticides, A User's Guide," 6/21/2000, web link:  http://www.epa.gov/fedrgstr/EPA-PEST/2000/July/Day-12/6061.pdf; or see SOP 99.6 (8/20/1999).

The most recent dietary risk assessment for metconazole was conducted by Amelia Acierto (3/28/2011, D387504).

II.	Residue Information

Residues of Concern:  The residues of concern for the tolerance expression and risk assessment (DP# 348234, C. Olinger, 2/11/2008) are summarized in Table 1 below.
The triazole metabolites (1,2,4-triazole, triazolylalanine, and triazolylacetic acid) are also residues of concern, but they are addressed in a separate dietary exposure assessment document (DP# 414951, T. Morton, 10/24/13).

Table 1.  Summary of Metabolites and Degradates to be included in the Risk Assessment and Tolerance Expression[1][,2]
Matrix
Residues Included In Risk Assessment
Residues Included In Tolerance Expression
Plants

Primary and Rotational Crops, except Cereal Grains
Metconazole
Metconazole

Primary and Rotational Crops, Cereal Grains only
Metconazole and M11
Metconazole
Livestock

Metconazole; M1 and its glucuronic acid conjugate; M12; M31 and its glucuronic acid conjugate
Metconazole
Drinking Water

Metconazole
Not Applicable
1  For all triazole-containing pesticides, 1,2,4-triazole, triazolylalanine (TA), and triazolylacetic acid (TAA) should also be included as residues of concern for risk assessment purposes only for plant and livestock commodities.  Since these metabolites are common to the entire class of triazole-derivative fungicides and because of differential toxicity between the metabolites and the various parent compounds, risks associated with exposure to 1,2,4-T and to TA/TAA are addressed in separate risk assessment documents.
2  M1 = 5-[(4-chlorophenyl)methyl]-2-methoxyl-2-methyl-1-(1H-1,2,4-triazol-1-ylmethyl)-1-cyclopentanol;  M11 = 5-[(4-chlorophenyl)methoxyl]-2,2-dimethyl-1-(1H-1,2,4-triazol-1-ylmethyl)-1-cyclopentanol; M12 = 5-[(4-chlorophenyl)methyl]-2-carboxyl-2-methyl-1-(1H-1,2,4-triazol-1-ylmethyl)-1-cyclopentanol; M31 = (1S*,3R*,5S*)-3-hydroxy-cis-metconazole; 1,2,4-T = 1H-1,2,4-triazole; TAA = 1H-1,2,4-triazol-1-yl acetic acid; TA = 2-amino-3-(1H-1,2,4-triazol-1-yl)propanoic acid.

Established Tolerances:  Tolerances are established under 40 CFR §180.617 for residues of metconazole, including its metabolites and degradates, on a variety of raw agricultural commodities.  Compliance with the tolerance levels is to be determined by measuring only metconazole as the sum of its cis- and trans-isomers.  Permanent tolerances have been established for a variety of raw agricultural and processed commodities.  Time-limited tolerances, set to expire on 12/31/14, have also been established on sugarcane cane and molasses.

Recommended Tolerances: In PP#4E8244 (as shown in Table 2 below), the Interregional Research Project No. 4 (IR-4), on behalf of the IR-4 Project and the Agricultural Experiment Stations of Montana, South Dakota, North Dakota, and Colorado (dry bean), Montana, South Dakota, Idaho, and North Dakota (dry pea), and Kansas, Montana, South Dakota and North Dakota (sunflower), requested the establishment of permanent tolerances and registration for use on the pea and bean, dried shelled, except soybean, subgroup 6C, and the sunflower subgroup 20B; expansion of the canola tolerance to the rapeseed subgroup 20A; and conversion of the established stone fruit crop group 12 and tree nut crop group 14 to the stone fruit crop group 12-12 and the tree nut crop group 14-12.

Table 2.  Recommended Metconazole Tolerances for PP#4E8244.
                                   Commodity
                       HED-Recommended Tolerances (ppm)
Pea and bean, dried shelled, except soybean, subgroup 6C
                                     0.15
Sunflower subgroup 20B
                                      0.7
Rapeseed subgroup 20A
                                     0.08
Fruit, stone, group 12-12
                                      0.2
Nut, tree, group 14-12
                                     0.04

Residue Values Used in This Assessment:  The residue levels used in the assessment are the established or recommended tolerance levels except for cereal grains and livestock commodities.  Since cereal grains and livestock commodities include metabolites as residues of concern in the risk assessment, maximum residue values for the metabolites from field trials were added to the metconazole tolerance levels.  Residue values used for cereal grains and livestock commodities are shown in Table 3 below:

Table 3.  Residue Values Used in DEEM for Cereal Grains and Livestock Commodities
Commodities
HED Recommended Tolerances - Parent only (ppm)
Maximum Residue Level For Metabolites (ppm, parent equivalents)
Residue Values Used in DEEM (ppm)[1]
Corn, field, grain
0.02
M11 (0.01)
0.03
Corn, pop, grain
0.02
M11 (0.01)
0.03
Corn, sweet, kernel plus cob with husk removed
0.01
M11 (0.01)
0.02
Small grains
Barley, grain
2.5
M11 (0.33)
2.83

Oat, grain
1.0
M11 (0.34)
1.34

Rye, grain
0.25
M11 (0.04)
0.29

Wheat, grain
0.15
M11 (0.03)
0.18
Cattle, meat byproducts
0.04
M1 (0.02)
M12 (0.02)
M31 (0.02)
0.10
Goat, meat byproducts

Horse, meat byproducts

Sheep, meat byproducts

Egg
0.04
M1 (0.02)
M12 (0.02)
M31 (0.02)
0.10
1 For cereal grains and livestock commodities, the residue values used in the DEEM include the sum of parent (tolerance) and metabolite(s), reported as parent equivalents.  Residues in meat byproducts and eggs are <LOQ (<0.02 ppm for each analyte).
.
Processing Factors:  DEEM default processing factors were used for apricot, dried (6.0x), banana/plantain, dried (3.9x), cherry juice (1.5x), corn, field, syrup (1.5x), cranberry juice (1.1x), peach, dried (7.0x), peanut butter (1.89x), and plum, prune, juice (1.4x).

Empirical processing factors, based on processing studies, were used for the bran of barley, oat, and wheat (2.0x), wheat flour (1x), wheat germ (1x), soybean oil (1x), sugarcane, sugar (1x) (all D348168, N. Dodd, 2/20/08; processing factors for barley, oat and wheat commodities include residues of parent and metabolite M11 from MRID 46902231); potato commodities (potato, chips; potato, dry) (1x) (D380990, A. Acierto, 3/24/11); rapeseed oil/sesame oil (1x) (D419223, N. Dodd, 11/4/14), and sunflower oil (1x) (D419223, N. Dodd, 11/4/14).  (The processing factor of 1x was used for processing factors which were <=1x.)  A separate tolerance was established for sugarcane molasses under a Section 18 (D341748, B. O'Keefe, 8/15/08); therefore, the processing factor was set to 1.  Separate tolerances were established for peanut oil and sugar beet molasses; therefore, the processing factors were set to 1 (D348168, N. Dodd, 2/20/08).  Although concentration was observed in dried prune (2.3x), it was determined that the tolerance for the raw agricultural commodity is adequate to cover the residues in the processed commodity (D348168, N. Dodd, 2/20/08); therefore, the processing factor for dried prune is set to 1.

The USDA Pesticide Data Program (PDP) monitored pesticide residues in catfish in 2008, 2009, and 2010; however, the samples were not analyzed for metconazole.  As a result, residues in fish were not included in the assessment.

III.	Percent Crop Treated

100% crop treated (100% CT) was assumed for all commodities.

IV.	Drinking Water Data

The drinking water residues used in the dietary risk assessment were provided by the Environmental Fate and Effects Division (EFED) in the following memorandum: "Drinking Water Exposure Assessment for the Section 3 New Use of Metconazole on Pea and Bean (Dried Shelled, Subgroup 6C), and Sunflower (Subgroup 20B)" (D418674, Faruque Khan, Ph.D., 9/30/14) and incorporated directly into this dietary assessment.  Water residues were incorporated in the DEEM-FCID into the food categories "water, direct, all sources" and "water, indirect, all sources."

Metconazole parent is the only residue of concern considered in the drinking water assessment.  No degradates of metconazole were included based on the recommendation from the Residues of Concern Knowledgebase Subcommittee (ROCKS) of HED (USEPA, 2008, D348234).

For surface water, the Surface Water Concentration Calculator (SWCC v 1.106) model was used to generate EDWCs for the Tier II aquatic exposure assessment based on cranberry use. The SWCC is a graphical user interface that runs the Pesticide Root Zone Model (PRZM, v 5, November 15, 2006) and the Variable Volume Water Body Model (VVWM, 3/6/2014) (USEPA, 2006b).  The default percent cropped area (PCA) factor of 1.0 was used.
For peak exposure and annual mean exposure, lower EDWCs for surface water were generated using the Tier II Pesticide Root Zone Model and Exposure Analysis Modeling System (PRZM-EXAMS), based on metconazole use on PA turf with a PCA factor of 1.  The use on turf reflected the highest application rate (i.e., five applications at 0.6 lb ai/A/application with a 14-day retreatment interval).  The modeled EDWCs for pea/bean (dried shelled) and sunflower did not exceed the concentrations from PA turf.
For groundwater, the PRZM-Ground Water (PRZM-GW) model was used to estimate EDWCs.  The highest application rate, which was the application rate for turf, was modeled in estimating metconazole EDWCs for groundwater.  Since application rates for proposed uses are lower than turf, no additional PRZM-GW modeling was conducted.

The EDWCs used in HED's human health dietary risk assessment are bolded in summary Table 4 below.   The groundwater EDWC of 51.8 ug/L (ppb) was used in the acute dietary assessment. The surface water EDWC of 43.9 ug/L (ppb) was used in the chronic dietary assessment.

Table 4.  Recommended EDWCs for the Proposed Uses of Metconazole for Drinking Water Sources[1]
Drinking Water Source
Crop Scenario (Model)
                                 Peak Exposure
                                    (Acute)
                                    (ug/L)
                             Annual Mean Exposure
                             (Non-Cancer Chronic)
                                    (μg/L)
                            30-year Mean Exposure
                               (Cancer Chronic)
                                   (ug/L)
Surface Water
Turf [2]
                                     45.5
                                     31.3
                                     22.8

Cranberry[3]
                                     49.6
                                     43.9
                                     NA[5]
Groundwater
WI Central Sand Scenario[4]
                                     51.8
                                     NA[5]
                                     20.0
[1] Bolded values are the recommended EDWCs for assessing acute and chronic dietary exposures from metconazole uses.
2 The Tier II model PRZM/EXAMS was used to generate EDWCs for surface water, based on metconazole use on PA turf.  A percent cropped area (PCA) factor of 1 was used.
[3] The SWCC v 1.106 model was used to generate EDWCs for the Tier II aquatic exposure assessment. The SWCC is a graphical user interface that runs the Pesticide Root Zone Model (PRZM, v 5, November 15, 2006) and the Variable Volume Water Body Model (VVWM, 3/6/2014) (USEPA, 2006b). The default PCA factor of 1.0 was used.
[4] The Tier 1 PRZM-GW model was used to reassess groundwater EDWCs for the turf use, which has the highest application rate (5 applications at of 0.6 lbs ai/A/application).
[5] Not applicable.

The drinking water models and their descriptions are available at the EPA internet site: http://www.epa.gov/oppefed1/models/water/.

V.  DEEM-FCID Program and Consumption Information

Metconazole acute and chronic dietary exposure assessments were conducted using the DEEM-FCID, Version 3.16, which incorporates 2003-2008 consumption data from USDA's NHANES/WWEIA.  The data are based on the reported consumption of more than 20,000 individuals over two non-consecutive survey days.  Foods "as consumed" (e.g., apple pie) are linked to EPA-defined food commodities (e.g., apples, peeled fruit - cooked; fresh or N/S; baked; or wheat flour - cooked; fresh or N/S, baked) using publicly available recipe translation files developed jointly by USDA/ARS and EPA.  For chronic exposure assessment, consumption data are averaged for the entire U.S. population and within population subgroups.  However, for acute exposure assessment, consumption data are retained as individual consumption events.  Based on analysis of the 2003-2008 WWEIA consumption data, which took into account dietary patterns and survey respondents, HED concluded that it is most appropriate to report risk for the following population subgroups: the general U.S. population, all infants (<1 year old), children 1-2, children 3-5, children 6-12, youth 13-19, adults 20-49, females 13-49, and adults 50-99 years old.

For a chronic dietary exposure assessment, an estimate of the residue level in each food or food-form (e.g., orange or orange juice) on the food commodity residue list is multiplied by the average daily consumption estimate for that food/food form to produce a residue intake estimate.  The resulting residue intake estimate for each food/food form is summed with the residue intake estimates for all other food/food forms on the commodity residue list to arrive at the total average estimated exposure.  Exposure is expressed in mg/kg body weight/day and as a percent of the cPAD.  This procedure is performed for each population subgroup.

For an acute exposure assessment, individual one-day food consumption data are used on an individual-by-individual basis.  The reported consumption amounts of each food item can be multiplied by a residue point estimate and summed to obtain a total daily pesticide exposure for a deterministic exposure assessment, or "matched" in multiple random pairings with residue values and then summed in a probabilistic assessment.  The resulting distribution of exposures is expressed as a percentage of the aPAD on both a user (i.e., only those who reported eating relevant commodities/food forms) and a per-capita (i.e., those who reported eating the relevant commodities as well as those who did not) basis.  In accordance with HED policy, per capita exposure and risk are reported for analyses performed at all levels of refinement.  However, for deterministic assessments, any significant differences in user vs. per capita exposure and risk are specifically identified and noted in the risk assessment.

VI.  Toxicological Information

The risk assessment team selected endpoints or confirmed endpoints that were selected previously.  The Cancer Assessment Review Committee (CARC) for metconazole met on November 2, 2005 (memo, Gregory Akerman, Ph.D., TXR# 0054211, 4/14/06).  The Metconazole Endpoint Selection meeting was held on December 21, 2005.  The Toxicity Advisory Clinic (TAC) met on 1/10/06 to discuss the acute hazard endpoint selection and the FQPA selection.

The critical studies in which HED has high confidence suggest a low (or no) level of concern for pup susceptibility.  Other data in which HED has a lower level of confidence suggests some level of concern for pup susceptibility.   Taken together, there is low concern (and thus low uncertainty) that the young are more susceptible than adults to metconazole exposures.  Thus, the FQPA factor has been removed (i.e., reduced to 1X).

A summary of toxicological endpoints for use in human health risk assessment is presented below in Table 5:

Table 5.  Summary of Toxicological Doses and Endpoints for Metconazole for Use in Dietary and Non-Occupational Human Health Risk Assessments
Exposure/
Scenario
Point of Departure
Uncertainty/FQPA Safety Factors
RfD, PAD, Level of Concern for Risk Assessment
Study and Toxicological Effects
Acute Dietary (General Population, including Infants and Children)

An appropriate dose/endpoint attributable to a single dose was not observed in the available oral toxicity studies.

Acute Dietary
(Females 13-49 years of age)
NOAEL= 12 mg/kg/day
UFA= 10x
UFH= 10x
FQPA SF= 1x

Acute RfD = 0.12 mg/kg/day

aPAD= 0.12 mg/kg/day
Developmental toxicity in rats: LOAEL= 30 mg/kg/day based on increases in skeletal variations (predominantly lumbar ribs).
Chronic Dietary (All Populations)
NOAEL= 4.3 mg/kg/day
UFA=10x
UFH= 10x
FQPA SF= 1x

Chronic RfD = 0.04 mg/kg/day

cPAD = 0.04 mg/kg/day
Chronic oral toxicity study in rats: LOAEL = 13.1 mg/kg/day based on increased liver (M) weights and associated  hepatocellular  lipid vacuolation (M) and centrilobular hypertrophy(M).  Same effects seen in F at 54 mg/kg/day, plus increased spleen wt.
Cancer (oral, dermal, inhalation)
Classification:  "Not likely to be Carcinogenic to Humans" based on convincing evidence that carcinogenic effects are not likely below a defined dose range.  A non-genotoxic mode of action for mouse liver tumors was established.  No quantification is required.
Point of Departure (POD) = A data point or an estimated point that is derived from observed dose-response data and
used to mark the beginning of extrapolation to determine risk associated with lower environmentally relevant human
 exposures.  NOAEL = no observed adverse effect level.  LOAEL = lowest observed adverse effect level.  UF =
uncertainty factor.  UFA = extrapolation from animal to human (interspecies).  UFH = potential variation in sensitivity
among members of the human population (intraspecies).  FQPA SF = FQPA Safety Factor.  PAD = population adjusted dose (a = acute, c = chronic).

VII.  Results/Discussion

As stated above, for acute and chronic assessments, HED is concerned when dietary risk exceeds 100% of the PAD.  The DEEM-FCID analyses estimate the dietary exposure and risk of the U.S. population and various population subgroups.  The results reported in Table 6 are for the general U.S. Population, all infants (<1 year old), children 1-2, children 3-5, children 6-12, youth 13-19, females 13-49, adults 20-49, and adults 50-99 years old.

Results of Acute Dietary (Food and Drinking Water) Exposure and Risk Analysis

The results of the acute dietary (food and drinking water) exposure and risk analysis at the 95[th] percentile of exposure are reported in Table 6, below.  The acute assessment was performed for females 13-49 years old only, since an acute endpoint was not identified for the general U.S. population.  The acute dietary (food and drinking water) exposure is 4.6% of the aPAD for females 13-49.

Results of Chronic Dietary (Food and Drinking Water) Exposure and Risk Analysis

The results of the chronic dietary (food and drinking water) exposure and risk analysis are reported in Table 6, below.  The chronic dietary (food and drinking water) exposure to metconazole is below HED's level of concern for the general U.S. population and all population subgroups.  The chronic dietary (food and drinking water) exposure estimates are 6.6% of the cPAD for the general U.S. population and 14% of the cPAD for children 1-2 years old, the most highly exposed population subgroup.

 Table 6.  Summary of Dietary (Food and Drinking Water) Exposure and Risk for Metconazole.
                              Population Subgroup
                                 Acute Dietary
                              (95[th] Percentile)
                                Chronic Dietary
                                     Cancer

                          Dietary Exposure (mg/kg/day)
                                    % aPAD*
                                Dietary Exposure
                                  (mg/kg/day)
                                    % cPAD*
                                Dietary Exposure
                                  (mg/kg/day)
                                      Risk
 General U.S. Population
                                       NA
                                       NA
                                    0.002653
                                      6.6
                                      N/A
                                      N/A
 All Infants (<1 year old)

                                    0.004963
                                       12

 Children 1-2 years old*

                                    0.005391
                                       14

 Children 3-5 years old

                                    0.004749
                                       12

 Children 6-12 years old

                                    0.003241
                                      8.1

 Youth 13-19 years old

                                    0.002045
                                      5.1

 Adults 20-49 years old

                                    0.002549
                                      6.4

 Adults 50-99 years old

                                    0.002166
                                      5.4

 Females 13-49 years old*
                                    0.005500
                                      4.6
                                    0.002179
                                      5.4

*The subpopulations with the highest risk estimates are bolded.

 VIII.  Characterization of Inputs/Outputs

Unrefined acute and chronic dietary exposure assessments were conducted.  Except for cereal grains and livestock commodities, the residue levels used in the assessment were the established or recommended tolerance levels.  For cereal grains and livestock commodities, maximum residue values for the metabolites from field trials were added to the metconazole tolerance levels.  It was assumed that 100% of the crops were treated.  Default and empirical processing factors were used, as available.  EDWCs based on modeling were provided by EFED and incorporated directly into the acute and chronic dietary assessments.  Although not needed at this time, HED could refine the exposure and risk estimates with the following information: 1) projected market share/percent crop treated data;  2) anticipated residue data; and 3) monitoring data.

IX.		Conclusions

Acute and chronic dietary (food and drinking water) exposure assessments were conducted for the proposed/established uses.  The acute dietary (food and drinking water) exposure to metconazole is below HED's level of concern for females 13-49 years old, the only population subgroup of concern.  The chronic dietary (food and drinking water) exposure to metconazole is below HED's level of concern for the general U.S. population and all population subgroups.

 X.		List of Attachments

1.	Acute Food plus Water Residue Input File.
2.	Acute Results File.
3.	Chronic Food plus Water Residue Input File.
4.	Chronic Results File.

Attachment 1.  Acute Food plus Water Residue Input File

Filename: C:\Users\ndodd\Documents\DEEM Version 3.16\Metconazole\MetconazoleAcuteSunflower.R08
Chemical: Metconazole
RfD(Chronic): .04 mg/kg bw/day  NOEL(Chronic): 4.3 mg/kg bw/day
RfD(Acute): .12 mg/kg bw/day  NOEL(Acute):  12 mg/kg bw/day
Date created/last modified: 11-07-2014/15:57:58       Program ver. 3.16, 03-08-d
Comment:
-----------------------------------------------------------------------------------
   EPA     Crop                                   Def Res     Adj.Factors   Comment
   Code     Grp  Commodity Name                    (ppm)       #1    #2
---------- ---- -------------------------------  ----------  ------ ------  -------
0101052000 1A   Beet, sugar                        0.070000   1.000  1.000
0101052001 1A   Beet, sugar-babyfood               0.070000   1.000  1.000
0101053000 1A   Beet, sugar, molasses              0.080000   1.000  1.000  D34816
            Full comment: D348168
0101053001 1A   Beet, sugar, molasses-babyfood     0.080000   1.000  1.000
0103015000 1CD  Arrowroot, flour                   0.040000   1.000  1.000
0103015001 1CD  Arrowroot, flour-babyfood          0.040000   1.000  1.000
0103017000 1CD  Artichoke, Jerusalem               0.040000   1.000  1.000
0103082000 1CD  Cassava                            0.040000   1.000  1.000
0103082001 1CD  Cassava-babyfood                   0.040000   1.000  1.000
0103139000 1CD  Dasheen, corm                      0.040000   1.000  1.000
0103166000 1CD  Ginger                             0.040000   1.000  1.000
0103166001 1CD  Ginger-babyfood                    0.040000   1.000  1.000
0103167000 1CD  Ginger, dried                      0.040000   1.000  1.000
0103296000 1C   Potato, chips                      0.040000   1.000  1.000  D38099
            Full comment: D380990
0103297000 1C   Potato, dry (granules/ flakes)     0.040000   1.000  1.000  D38099
            Full comment: D380990
0103297001 1C   Potato, dry (granules/ flakes)-b   0.040000   1.000  1.000
0103298000 1C   Potato, flour                      0.040000   1.000  1.000
0103298001 1C   Potato, flour-babyfood             0.040000   1.000  1.000
0103299000 1C   Potato, tuber, w/peel              0.040000   1.000  1.000
0103299001 1C   Potato, tuber, w/peel-babyfood     0.040000   1.000  1.000
0103300000 1C   Potato, tuber, w/o peel            0.040000   1.000  1.000
0103300001 1C   Potato, tuber, w/o peel-babyfood   0.040000   1.000  1.000
0103366000 1CD  Sweet potato                       0.040000   1.000  1.000
0103366001 1CD  Sweet potato-babyfood              0.040000   1.000  1.000
0103371000 1CD  Tanier, corm                       0.040000   1.000  1.000
0103387000 1CD  Turmeric                           0.040000   1.000  1.000
0103406000 1CD  Yam, true                          0.040000   1.000  1.000
0103407000 1CD  Yam bean                           0.040000   1.000  1.000
0600347000 6    Soybean, seed                      0.050000   1.000  1.000
0600349000 6    Soybean, soy milk                  0.050000   1.000  1.000
0600349001 6    Soybean, soy milk-babyfood or in   0.050000   1.000  1.000
0600350000 6    Soybean, oil                       0.050000   1.000  1.000  D34816
            Full comment: D348168
0600350001 6    Soybean, oil-babyfood              0.050000   1.000  1.000
0601349500 6AB  Soybean, vegetable                 0.050000   1.000  1.000
0603030000 6C   Bean, black, seed                  0.150000   1.000  1.000
0603032000 6C   Bean, broad, seed                  0.150000   1.000  1.000
0603034000 6C   Bean, cowpea, seed                 0.150000   1.000  1.000
0603035000 6C   Bean,  great northern, seed        0.150000   1.000  1.000
0603036000 6C   Bean, kidney, seed                 0.150000   1.000  1.000
0603038000 6C   Bean, lima, seed                   0.150000   1.000  1.000
0603039000 6C   Bean, mung, seed                   0.150000   1.000  1.000
0603040000 6C   Bean, navy, seed                   0.150000   1.000  1.000
0603041000 6C   Bean, pink, seed                   0.150000   1.000  1.000
0603042000 6C   Bean, pinto, seed                  0.150000   1.000  1.000
0603098000 6C   Chickpea, seed                     0.150000   1.000  1.000
0603098001 6C   Chickpea, seed-babyfood            0.150000   1.000  1.000
0603099000 6C   Chickpea, flour                    0.150000   1.000  1.000
0603182000 6C   Guar, seed                         0.150000   1.000  1.000
0603182001 6C   Guar, seed-babyfood                0.150000   1.000  1.000
0603203000 6C   Lentil, seed                       0.150000   1.000  1.000
0603256000 6C   Pea, dry                           0.150000   1.000  1.000
0603256001 6C   Pea, dry-babyfood                  0.150000   1.000  1.000
0603258000 6C   Pea, pigeon, seed                  0.150000   1.000  1.000
0603348000 6C   Soybean, flour                     0.050000   1.000  1.000
0603348001 6C   Soybean, flour-babyfood            0.050000   1.000  1.000
1201090000 12A  Cherry                             0.200000   1.000  1.000
1201090001 12A  Cherry-babyfood                    0.200000   1.000  1.000
1201091000 12A  Cherry, juice                      0.200000   1.500  1.000
1201091001 12A  Cherry, juice-babyfood             0.200000   1.500  1.000
1202012000 12B  Apricot                            0.200000   1.000  1.000
1202012001 12B  Apricot-babyfood                   0.200000   1.000  1.000
1202013000 12B  Apricot, dried                     0.200000   6.000  1.000
1202014000 12B  Apricot, juice                     0.200000   1.000  1.000
1202014001 12B  Apricot, juice-babyfood            0.200000   1.000  1.000
1202230000 12B  Nectarine                          0.200000   1.000  1.000
1202260000 12B  Peach                              0.200000   1.000  1.000
1202260001 12B  Peach-babyfood                     0.200000   1.000  1.000
1202261000 12B  Peach, dried                       0.200000   7.000  1.000
1202261001 12B  Peach, dried-babyfood              0.200000   7.000  1.000
1202262000 12B  Peach, juice                       0.200000   1.000  1.000
1202262001 12B  Peach, juice-babyfood              0.200000   1.000  1.000
1203285000 12C  Plum                               0.200000   1.000  1.000
1203285001 12C  Plum-babyfood                      0.200000   1.000  1.000
1203286000 12C  Plum, prune, fresh                 0.200000   1.000  1.000
1203286001 12C  Plum, prune, fresh-babyfood        0.200000   1.000  1.000
1203287000 12C  Plum, prune, dried                 0.200000   1.000  1.000  D34816
            Full comment: D348168
1203287001 12C  Plum, prune, dried-babyfood        0.200000   1.000  1.000
1203288000 12C  Plum, prune, juice                 0.200000   1.400  1.000
1203288001 12C  Plum, prune, juice-babyfood        0.200000   1.400  1.000
1302057000 13B  Blueberry                          0.400000   1.000  1.000
1302057001 13B  Blueberry-babyfood                 0.400000   1.000  1.000
1302136000 13B  Currant                            0.400000   1.000  1.000
1302137000 13B  Currant, dried                     0.400000   1.000  1.000
1302149000 13B  Elderberry                         0.400000   1.000  1.000
1302174000 13B  Gooseberry                         0.400000   1.000  1.000
1302191000 13B  Huckleberry                        0.400000   1.000  1.000
1307130000 13G  Cranberry                          0.400000   1.000  1.000
1307130001 13G  Cranberry-babyfood                 0.400000   1.000  1.000
1307131000 13G  Cranberry, dried                   0.400000   1.000  1.000
1307132000 13G  Cranberry, juice                   0.400000   1.100  1.000
1307132001 13G  Cranberry, juice-babyfood          0.400000   1.100  1.000
1400003000 14   Almond                             0.040000   1.000  1.000
1400003001 14   Almond-babyfood                    0.040000   1.000  1.000
1400004000 14   Almond, oil                        0.040000   1.000  1.000
1400004001 14   Almond, oil-babyfood               0.040000   1.000  1.000
1400059000 14   Brazil nut                         0.040000   1.000  1.000
1400068000 14   Butternut                          0.040000   1.000  1.000
1400081000 14   Cashew                             0.040000   1.000  1.000
1400092000 14   Chestnut                           0.040000   1.000  1.000
1400155000 14   Hazelnut                           0.040000   1.000  1.000
1400156000 14   Hazelnut, oil                      0.040000   1.000  1.000
1400185000 14   Hickory nut                        0.040000   1.000  1.000
1400213000 14   Macadamia nut                      0.040000   1.000  1.000
1400269000 14   Pecan                              0.040000   1.000  1.000
1400278000 14   Pine nut                           0.040000   1.000  1.000
1400282000 14   Pistachio                          0.040000   1.000  1.000
1400391000 14   Walnut                             0.040000   1.000  1.000
1500025000 15   Barley, pearled barley             2.830000   1.000  1.000
1500025001 15   Barley, pearled barley-babyfood    2.830000   1.000  1.000
1500026000 15   Barley, flour                      2.830000   1.000  1.000
1500026001 15   Barley, flour-babyfood             2.830000   1.000  1.000
1500027000 15   Barley, bran                       2.830000   2.000  1.000
1500120000 15   Corn, field, flour                 0.030000   1.000  1.000
1500120001 15   Corn, field, flour-babyfood        0.030000   1.000  1.000
1500121000 15   Corn, field, meal                  0.030000   1.000  1.000
1500121001 15   Corn, field, meal-babyfood         0.030000   1.000  1.000
1500122000 15   Corn, field, bran                  0.030000   1.000  1.000
1500123000 15   Corn, field, starch                0.030000   1.000  1.000
1500123001 15   Corn, field, starch-babyfood       0.030000   1.000  1.000
1500124000 15   Corn, field, syrup                 0.030000   1.500  1.000
1500124001 15   Corn, field, syrup-babyfood        0.030000   1.500  1.000
1500125000 15   Corn, field, oil                   0.030000   1.000  1.000
1500125001 15   Corn, field, oil-babyfood          0.030000   1.000  1.000
1500126000 15   Corn, pop                          0.030000   1.000  1.000
1500127000 15   Corn, sweet                        0.020000   1.000  1.000
1500127001 15   Corn, sweet-babyfood               0.020000   1.000  1.000
1500231000 15   Oat, bran                          1.340000   2.000  1.000
1500232000 15   Oat, flour                         1.340000   1.000  1.000
1500232001 15   Oat, flour-babyfood                1.340000   1.000  1.000
1500233000 15   Oat, groats/rolled oats            1.340000   1.000  1.000
1500233001 15   Oat, groats/rolled oats-babyfood   1.340000   1.000  1.000
1500328000 15   Rye, grain                         0.290000   1.000  1.000
1500329000 15   Rye, flour                         0.290000   1.000  1.000
1500401000 15   Wheat, grain                       0.180000   1.000  1.000
1500401001 15   Wheat, grain-babyfood              0.180000   1.000  1.000
1500402000 15   Wheat, flour                       0.180000   1.000  1.000  D34816
            Full comment: D348168
1500402001 15   Wheat, flour-babyfood              0.180000   1.000  1.000
1500403000 15   Wheat, germ                        0.180000   1.000  1.000  D34816
            Full comment: D348168
1500404000 15   Wheat, bran                        0.180000   2.000  1.000  D34816
            Full comment: D348168, MRID 46902231
2001163000 20A  Flax seed, oil                     0.080000   1.000  1.000
2001319000 20A  Rapeseed, oil                      0.080000   1.000  1.000  D42362
            Full comment: D423622
2001319001 20A  Rapeseed, oil-babyfood             0.080000   1.000  1.000
2001336000 20A  Sesame, seed                       0.080000   1.000  1.000
2001336001 20A  Sesame, seed-babyfood              0.080000   1.000  1.000
2001337000 20A  Sesame, oil                        0.080000   1.000  1.000  D42362
            Full comment: D423622
2001337001 20A  Sesame, oil-babyfood               0.080000   1.000  1.000
2002330000 20B  Safflower, oil                     0.700000   1.000  1.000
2002330001 20B  Safflower, oil-babyfood            0.700000   1.000  1.000
2002364000 20B  Sunflower, seed                    0.700000   1.000  1.000
2002365000 20B  Sunflower, oil                     0.700000   1.000  1.000  D42362
            Full comment: D423622
2002365001 20B  Sunflower, oil-babyfood            0.700000   1.000  1.000
2003128000 20C  Cottonseed, oil                    0.250000   1.000  1.000
2003128001 20C  Cottonseed, oil-babyfood           0.250000   1.000  1.000
3100046000 31   Beef, meat byproducts              0.100000   1.000  1.000
3100046001 31   Beef, meat byproducts-babyfood     0.100000   1.000  1.000
3100048000 31   Beef, kidney                       0.100000   1.000  1.000
3100049000 31   Beef, liver                        0.100000   1.000  1.000
3100049001 31   Beef, liver-babyfood               0.100000   1.000  1.000
3200170000 32   Goat, meat byproducts              0.100000   1.000  1.000
3200172000 32   Goat, kidney                       0.100000   1.000  1.000
3200173000 32   Goat, liver                        0.100000   1.000  1.000
3500340000 35   Sheep, meat byproducts             0.100000   1.000  1.000
3500342000 35   Sheep, kidney                      0.100000   1.000  1.000
3500343000 35   Sheep, liver                       0.100000   1.000  1.000
7000145000 70   Egg, whole                         0.100000   1.000  1.000
7000145001 70   Egg, whole-babyfood                0.100000   1.000  1.000
7000146000 70   Egg, white                         0.100000   1.000  1.000
7000146001 70   Egg, white (solids)-babyfood       0.100000   1.000  1.000
7000147000 70   Egg, yolk                          0.100000   1.000  1.000
7000147001 70   Egg, yolk-babyfood                 0.100000   1.000  1.000
8601000000 86A  Water, direct, all sources         0.051800   1.000  1.000
8602000000 86B  Water, indirect, all sources       0.051800   1.000  1.000
9500023000 O    Banana                             0.100000   1.000  1.000
9500023001 O    Banana-babyfood                    0.100000   1.000  1.000
9500024000 O    Banana, dried                      0.100000   3.900  1.000
9500024001 O    Banana, dried-babyfood             0.100000   3.900  1.000
9500263000 O    Peanut                             0.040000   1.000  1.000
9500264000 O    Peanut, butter                     0.050000   1.890  1.000
9500265000 O    Peanut, oil                        0.050000   1.000  1.000  D34816
            Full comment: D348168
9500283000 O    Plantain                           0.100000   1.000  1.000
9500284000 O    Plantain, dried                    0.100000   3.900  1.000
9500362000 O    Sugarcane, sugar                   1.600000   1.000  1.000  D34816
            Full comment: D348168
9500362001 O    Sugarcane, sugar-babyfood          1.600000   1.000  1.000
9500363000 O    Sugarcane, molasses                3.200000   1.000  1.000  Sectio
            Full comment: Section 18 tolerance =1.6 x 2x
9500363001 O    Sugarcane, molasses-babyfood       3.200000   1.000  1.000

Attachment 2.  Acute Results File

US EPA                                                      Ver. 3.18, 03-08-d
DEEM-FCID ACUTE Analysis for METCONAZOLE                 NHANES 2003-2008 2-Day
Residue file: MetconazoleAcuteSunflower.R08           Adjustment factor #2 used.
Analysis Date: 11-07-2014/16:13:21    Residue file dated: 11-07-2014/15:57:58
NOEL (Acute) =  12.000000 mg/kg body-wt/day
RAC/FF intake summed over 24 hours
Run Comment: " "
===============================================================================

Summary calculations--per capita:

---   95th Percentile----   ---   99th Percentile----     ---99.9th Percentile----
 Exposure  % aRfD     MOE    Exposure  % aRfD     MOE    Exposure  % aRfD     MOE
---------- ------- -------- ---------- ------- -------- ---------- ------- --------
Female 13-49:
  0.005500    4.58    2181    0.008947    7.46    1341    0.015703   13.09     764

Attachment 3.  Chronic Food plus Water Residue Input File

Filename: C:\Users\ndodd\Documents\DEEM Version 3.16\Metconazole\MetconazoleChronicSunflower.R08
Chemical: Metconazole
RfD(Chronic): .04 mg/kg bw/day  NOEL(Chronic): 4.3 mg/kg bw/day
RfD(Acute): .12 mg/kg bw/day  NOEL(Acute):  12 mg/kg bw/day
Date created/last modified: 11-07-2014/15:59:15       Program ver. 3.16, 03-08-d
Comment:
-----------------------------------------------------------------------------------
   EPA     Crop                                   Def Res     Adj.Factors   Comment
   Code     Grp  Commodity Name                    (ppm)       #1    #2
---------- ---- -------------------------------  ----------  ------ ------  -------
0101052000 1A   Beet, sugar                        0.070000   1.000  1.000
0101052001 1A   Beet, sugar-babyfood               0.070000   1.000  1.000
0101053000 1A   Beet, sugar, molasses              0.080000   1.000  1.000  D34816
            Full comment: D348168
0101053001 1A   Beet, sugar, molasses-babyfood     0.080000   1.000  1.000
0103015000 1CD  Arrowroot, flour                   0.040000   1.000  1.000
0103015001 1CD  Arrowroot, flour-babyfood          0.040000   1.000  1.000
0103017000 1CD  Artichoke, Jerusalem               0.040000   1.000  1.000
0103082000 1CD  Cassava                            0.040000   1.000  1.000
0103082001 1CD  Cassava-babyfood                   0.040000   1.000  1.000
0103139000 1CD  Dasheen, corm                      0.040000   1.000  1.000
0103166000 1CD  Ginger                             0.040000   1.000  1.000
0103166001 1CD  Ginger-babyfood                    0.040000   1.000  1.000
0103167000 1CD  Ginger, dried                      0.040000   1.000  1.000
0103296000 1C   Potato, chips                      0.040000   1.000  1.000  D38099
            Full comment: D380990
0103297000 1C   Potato, dry (granules/ flakes)     0.040000   1.000  1.000  D38099
            Full comment: D380990
0103297001 1C   Potato, dry (granules/ flakes)-b   0.040000   1.000  1.000
0103298000 1C   Potato, flour                      0.040000   1.000  1.000
0103298001 1C   Potato, flour-babyfood             0.040000   1.000  1.000
0103299000 1C   Potato, tuber, w/peel              0.040000   1.000  1.000
0103299001 1C   Potato, tuber, w/peel-babyfood     0.040000   1.000  1.000
0103300000 1C   Potato, tuber, w/o peel            0.040000   1.000  1.000
0103300001 1C   Potato, tuber, w/o peel-babyfood   0.040000   1.000  1.000
0103366000 1CD  Sweet potato                       0.040000   1.000  1.000
0103366001 1CD  Sweet potato-babyfood              0.040000   1.000  1.000
0103371000 1CD  Tanier, corm                       0.040000   1.000  1.000
0103387000 1CD  Turmeric                           0.040000   1.000  1.000
0103406000 1CD  Yam, true                          0.040000   1.000  1.000
0103407000 1CD  Yam bean                           0.040000   1.000  1.000
0600347000 6    Soybean, seed                      0.050000   1.000  1.000
0600349000 6    Soybean, soy milk                  0.050000   1.000  1.000
0600349001 6    Soybean, soy milk-babyfood or in   0.050000   1.000  1.000
0600350000 6    Soybean, oil                       0.050000   1.000  1.000  D34816
            Full comment: D348168
0600350001 6    Soybean, oil-babyfood              0.050000   1.000  1.000
0601349500 6AB  Soybean, vegetable                 0.050000   1.000  1.000
0603030000 6C   Bean, black, seed                  0.150000   1.000  1.000
0603032000 6C   Bean, broad, seed                  0.150000   1.000  1.000
0603034000 6C   Bean, cowpea, seed                 0.150000   1.000  1.000
0603035000 6C   Bean,  great northern, seed        0.150000   1.000  1.000
0603036000 6C   Bean, kidney, seed                 0.150000   1.000  1.000
0603038000 6C   Bean, lima, seed                   0.150000   1.000  1.000
0603039000 6C   Bean, mung, seed                   0.150000   1.000  1.000
0603040000 6C   Bean, navy, seed                   0.150000   1.000  1.000
0603041000 6C   Bean, pink, seed                   0.150000   1.000  1.000
0603042000 6C   Bean, pinto, seed                  0.150000   1.000  1.000
0603098000 6C   Chickpea, seed                     0.150000   1.000  1.000
0603098001 6C   Chickpea, seed-babyfood            0.150000   1.000  1.000
0603099000 6C   Chickpea, flour                    0.150000   1.000  1.000
0603182000 6C   Guar, seed                         0.150000   1.000  1.000
0603182001 6C   Guar, seed-babyfood                0.150000   1.000  1.000
0603203000 6C   Lentil, seed                       0.150000   1.000  1.000
0603256000 6C   Pea, dry                           0.150000   1.000  1.000
0603256001 6C   Pea, dry-babyfood                  0.150000   1.000  1.000
0603258000 6C   Pea, pigeon, seed                  0.150000   1.000  1.000
0603348000 6C   Soybean, flour                     0.050000   1.000  1.000
0603348001 6C   Soybean, flour-babyfood            0.050000   1.000  1.000
1201090000 12A  Cherry                             0.200000   1.000  1.000
1201090001 12A  Cherry-babyfood                    0.200000   1.000  1.000
1201091000 12A  Cherry, juice                      0.200000   1.500  1.000
1201091001 12A  Cherry, juice-babyfood             0.200000   1.500  1.000
1202012000 12B  Apricot                            0.200000   1.000  1.000
1202012001 12B  Apricot-babyfood                   0.200000   1.000  1.000
1202013000 12B  Apricot, dried                     0.200000   6.000  1.000
1202014000 12B  Apricot, juice                     0.200000   1.000  1.000
1202014001 12B  Apricot, juice-babyfood            0.200000   1.000  1.000
1202230000 12B  Nectarine                          0.200000   1.000  1.000
1202260000 12B  Peach                              0.200000   1.000  1.000
1202260001 12B  Peach-babyfood                     0.200000   1.000  1.000
1202261000 12B  Peach, dried                       0.200000   7.000  1.000
1202261001 12B  Peach, dried-babyfood              0.200000   7.000  1.000
1202262000 12B  Peach, juice                       0.200000   1.000  1.000
1202262001 12B  Peach, juice-babyfood              0.200000   1.000  1.000
1203285000 12C  Plum                               0.200000   1.000  1.000
1203285001 12C  Plum-babyfood                      0.200000   1.000  1.000
1203286000 12C  Plum, prune, fresh                 0.200000   1.000  1.000
1203286001 12C  Plum, prune, fresh-babyfood        0.200000   1.000  1.000
1203287000 12C  Plum, prune, dried                 0.200000   1.000  1.000  D34816
            Full comment: D348168
1203287001 12C  Plum, prune, dried-babyfood        0.200000   1.000  1.000
1203288000 12C  Plum, prune, juice                 0.200000   1.400  1.000
1203288001 12C  Plum, prune, juice-babyfood        0.200000   1.400  1.000
1302057000 13B  Blueberry                          0.400000   1.000  1.000
1302057001 13B  Blueberry-babyfood                 0.400000   1.000  1.000
1302136000 13B  Currant                            0.400000   1.000  1.000
1302137000 13B  Currant, dried                     0.400000   1.000  1.000
1302149000 13B  Elderberry                         0.400000   1.000  1.000
1302174000 13B  Gooseberry                         0.400000   1.000  1.000
1302191000 13B  Huckleberry                        0.400000   1.000  1.000
1307130000 13G  Cranberry                          0.400000   1.000  1.000
1307130001 13G  Cranberry-babyfood                 0.400000   1.000  1.000
1307131000 13G  Cranberry, dried                   0.400000   1.000  1.000
1307132000 13G  Cranberry, juice                   0.400000   1.100  1.000
1307132001 13G  Cranberry, juice-babyfood          0.400000   1.100  1.000
1400003000 14   Almond                             0.040000   1.000  1.000
1400003001 14   Almond-babyfood                    0.040000   1.000  1.000
1400004000 14   Almond, oil                        0.040000   1.000  1.000
1400004001 14   Almond, oil-babyfood               0.040000   1.000  1.000
1400059000 14   Brazil nut                         0.040000   1.000  1.000
1400068000 14   Butternut                          0.040000   1.000  1.000
1400081000 14   Cashew                             0.040000   1.000  1.000
1400092000 14   Chestnut                           0.040000   1.000  1.000
1400155000 14   Hazelnut                           0.040000   1.000  1.000
1400156000 14   Hazelnut, oil                      0.040000   1.000  1.000
1400185000 14   Hickory nut                        0.040000   1.000  1.000
1400213000 14   Macadamia nut                      0.040000   1.000  1.000
1400269000 14   Pecan                              0.040000   1.000  1.000
1400278000 14   Pine nut                           0.040000   1.000  1.000
1400282000 14   Pistachio                          0.040000   1.000  1.000
1400391000 14   Walnut                             0.040000   1.000  1.000
1500025000 15   Barley, pearled barley             2.830000   1.000  1.000
1500025001 15   Barley, pearled barley-babyfood    2.830000   1.000  1.000
1500026000 15   Barley, flour                      2.830000   1.000  1.000
1500026001 15   Barley, flour-babyfood             2.830000   1.000  1.000
1500027000 15   Barley, bran                       2.830000   2.000  1.000
1500120000 15   Corn, field, flour                 0.030000   1.000  1.000
1500120001 15   Corn, field, flour-babyfood        0.030000   1.000  1.000
1500121000 15   Corn, field, meal                  0.030000   1.000  1.000
1500121001 15   Corn, field, meal-babyfood         0.030000   1.000  1.000
1500122000 15   Corn, field, bran                  0.030000   1.000  1.000
1500123000 15   Corn, field, starch                0.030000   1.000  1.000
1500123001 15   Corn, field, starch-babyfood       0.030000   1.000  1.000
1500124000 15   Corn, field, syrup                 0.030000   1.500  1.000
1500124001 15   Corn, field, syrup-babyfood        0.030000   1.500  1.000
1500125000 15   Corn, field, oil                   0.030000   1.000  1.000
1500125001 15   Corn, field, oil-babyfood          0.030000   1.000  1.000
1500126000 15   Corn, pop                          0.030000   1.000  1.000
1500127000 15   Corn, sweet                        0.020000   1.000  1.000
1500127001 15   Corn, sweet-babyfood               0.020000   1.000  1.000
1500231000 15   Oat, bran                          1.340000   2.000  1.000
1500232000 15   Oat, flour                         1.340000   1.000  1.000
1500232001 15   Oat, flour-babyfood                1.340000   1.000  1.000
1500233000 15   Oat, groats/rolled oats            1.340000   1.000  1.000
1500233001 15   Oat, groats/rolled oats-babyfood   1.340000   1.000  1.000
1500328000 15   Rye, grain                         0.290000   1.000  1.000
1500329000 15   Rye, flour                         0.290000   1.000  1.000
1500401000 15   Wheat, grain                       0.180000   1.000  1.000
1500401001 15   Wheat, grain-babyfood              0.180000   1.000  1.000
1500402000 15   Wheat, flour                       0.180000   1.000  1.000  D34816
            Full comment: D348168
1500402001 15   Wheat, flour-babyfood              0.180000   1.000  1.000
1500403000 15   Wheat, germ                        0.180000   1.000  1.000  D34816
            Full comment: D348168
1500404000 15   Wheat, bran                        0.180000   2.000  1.000  D34816
            Full comment: D348168; MRID 46902231
2001163000 20A  Flax seed, oil                     0.080000   1.000  1.000
2001319000 20A  Rapeseed, oil                      0.080000   1.000  1.000  D42362
            Full comment: D423622
2001319001 20A  Rapeseed, oil-babyfood             0.080000   1.000  1.000
2001336000 20A  Sesame, seed                       0.080000   1.000  1.000
2001336001 20A  Sesame, seed-babyfood              0.080000   1.000  1.000
2001337000 20A  Sesame, oil                        0.080000   1.000  1.000  D42362
            Full comment: D423622
2001337001 20A  Sesame, oil-babyfood               0.080000   1.000  1.000
2002330000 20B  Safflower, oil                     0.700000   1.000  1.000
2002330001 20B  Safflower, oil-babyfood            0.700000   1.000  1.000
2002364000 20B  Sunflower, seed                    0.700000   1.000  1.000
2002365000 20B  Sunflower, oil                     0.700000   1.000  1.000  D42362
            Full comment: D423622
2002365001 20B  Sunflower, oil-babyfood            0.700000   1.000  1.000
2003128000 20C  Cottonseed, oil                    0.250000   1.000  1.000
2003128001 20C  Cottonseed, oil-babyfood           0.250000   1.000  1.000
3100046000 31   Beef, meat byproducts              0.100000   1.000  1.000
3100046001 31   Beef, meat byproducts-babyfood     0.100000   1.000  1.000
3100048000 31   Beef, kidney                       0.100000   1.000  1.000
3100049000 31   Beef, liver                        0.100000   1.000  1.000
3100049001 31   Beef, liver-babyfood               0.100000   1.000  1.000
3200170000 32   Goat, meat byproducts              0.100000   1.000  1.000
3200172000 32   Goat, kidney                       0.100000   1.000  1.000
3200173000 32   Goat, liver                        0.100000   1.000  1.000
3500340000 35   Sheep, meat byproducts             0.100000   1.000  1.000
3500342000 35   Sheep, kidney                      0.100000   1.000  1.000
3500343000 35   Sheep, liver                       0.100000   1.000  1.000
7000145000 70   Egg, whole                         0.100000   1.000  1.000
7000145001 70   Egg, whole-babyfood                0.100000   1.000  1.000
7000146000 70   Egg, white                         0.100000   1.000  1.000
7000146001 70   Egg, white (solids)-babyfood       0.100000   1.000  1.000
7000147000 70   Egg, yolk                          0.100000   1.000  1.000
7000147001 70   Egg, yolk-babyfood                 0.100000   1.000  1.000
8601000000 86A  Water, direct, all sources         0.043900   1.000  1.000
8602000000 86B  Water, indirect, all sources       0.043900   1.000  1.000
9500023000 O    Banana                             0.100000   1.000  1.000
9500023001 O    Banana-babyfood                    0.100000   1.000  1.000
9500024000 O    Banana, dried                      0.100000   3.900  1.000
9500024001 O    Banana, dried-babyfood             0.100000   3.900  1.000
9500263000 O    Peanut                             0.040000   1.000  1.000
9500264000 O    Peanut, butter                     0.050000   1.890  1.000
9500265000 O    Peanut, oil                        0.050000   1.000  1.000  D34816
            Full comment: D348168
9500283000 O    Plantain                           0.100000   1.000  1.000
9500284000 O    Plantain, dried                    0.100000   3.900  1.000
9500362000 O    Sugarcane, sugar                   1.600000   1.000  1.000  D34816
            Full comment: D348168
9500362001 O    Sugarcane, sugar-babyfood          1.600000   1.000  1.000
9500363000 O    Sugarcane, molasses                3.200000   1.000  1.000  Sectio
            Full comment: Section 18 tolerance =1.6 x 2x
9500363001 O    Sugarcane, molasses-babyfood       3.200000   1.000  1.000

Attachment 4:  Chronic Results File

US EPA                                                          Ver. 3.16, 03-08-d
DEEM-FCID Chronic analysis for METCONAZOLE                 NHANES 2003-2008 2-day
Residue file name: C:\Users\ndodd\Documents\DEEM Version 3.16\Metconazole\MetconazoleChronicSunflower.R08
                                                     Adjustment factor #2 used.
Analysis Date 11-07-2014/16:15:22     Residue file dated: 11-07-2014/15:59:15
Reference dose (RfD, Chronic) = .04 mg/kg bw/day
===============================================================================
                    Total exposure by population subgroup
-------------------------------------------------------------------------------

                                                    Total Exposure
                                         -----------------------------------
          Population                         mg/kg             Percent of
           Subgroup                       body wt/day             Rfd
--------------------------------------   -------------       ----------------
Total US Population                         0.002653                 6.6%
Hispanic                                    0.002641                 6.6%
Non-Hisp-White                              0.002701                 6.8%
Non-Hisp-Black                              0.002353                 5.9%
Non-Hisp-Other                              0.002747                 6.9%
Nursing Infants                             0.002351                 5.9%
Non-Nursing Infants                         0.006129                15.3%
Female 13+ PREG                             0.002123                 5.3%
Children 1-6                                0.004914                12.3%
Children 7-12                               0.003045                 7.6%
Male 13-19                                  0.002133                 5.3%
Female 13-19/NP                             0.001966                 4.9%
Male 20+                                    0.002658                 6.6%
Female 20+/NP                               0.002149                 5.4%
Seniors 55+                                 0.002074                 5.2%
All Infants                                 0.004963                12.4%
Female 13-50                                0.002174                 5.4%
Children 1-2                                0.005391                13.5%
Children 3-5                                0.004749                11.9%
Children 6-12                               0.003241                 8.1%
Youth 13-19                                 0.002045                 5.1%
Adults 20-49                                0.002549                 6.4%
Adults 50-99                                0.002166                 5.4%
Female 13-49                                0.002179                 5.4%

-------------------------------------------------------------------------------


UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

REGION IX AIR DIVISION

Technical Support Document

for

EPA's Proposed Rulemaking

for the

California State Implementation Plan

EPA’s Evaluation of

Imperial County Air Pollution Control District,

Final 2009 Reasonably Available Control Technology

State Implementation Plan

Dated July 13, 2010

Adopted July 13, 2010

Prepared by: James Shears

Reviewed by:  Andrew Steckel

July 2015

RULE IDENTIFICATION -

Agency:			Imperial County Air Pollution Control District (ICAPCD)

SIP Approved Version:	None

Subject of this TSD:	ICAPCD Final 2009 Reasonably Available Control
Technology State Implementation Plan – Dated July 13, 2010 (“2009
RACT SIP”)

				Adopted 		July 13, 2010

				Submitted 		December 21, 2010

BACKGROUND

Volatile organic compounds (VOCs) and nitrogen oxides (NOx) in the
presence of sunlight can lead to the formation of ground-level ozone or
“smog” which can result in significant impacts to human health and
the environment. Section 182 of the Clean Air Act (CAA) requires areas
that are classified as moderate or above for ozone nonattainment to
implement reasonably available control technology (RACT) for specific
types of sources.

With the implementation of the 1997 8-hour National Ambient Air Quality
Standard (NAAQS) for ozone, Imperial County Air Pollution Control
District (ICAPCD or the District) was classified as a marginal
nonattainment area.  Subsequently, EPA found that Imperial County did
not meet the attainment deadline of June 15, 2007, and reclassified it
as a moderate nonattainment area with an attainment deadline of June 15,
2010.   On December 3, 2009, EPA issued a final rule  determining that
Imperial County attained the 1997 8-hour NAAQS based on ambient air
monitoring data for the years 2006 through 2008.  Although the finding
of attainment by EPA suspended certain State Implementation Plan (SIP)
related requirements, it did not suspend the RACT requirements for VOCs
and NOx under CAA section 182.  Pursuant to 40 CFR 51.912(a)(1), the
State (or local air district) must submit a SIP revision that meets the
VOC and NOX RACT requirements in CAA section 182(b)(2) and (f) for each
area classified moderate or higher. Therefore, ICAPCD must, at a
minimum, adopt RACT-level controls for sources covered by a Control
Techniques Guidelines (CTG) document and for any major stationary source
of VOCs or NOx.

EPA defines RACT as the “lowest emissions limitation that a particular
source is capable of meeting by the application of control technology
that is reasonably available considering technological and economic
feasibility.” A RACT analysis should, therefore, take into account the
technological and economic feasibility of controls, and may differ from
source to source and location to location.

SUBMITTAL SUMMARY and EPA EVALUATION

The District adopted its 2009 RACT SIP on July 13, 2010 and the
California Air Resources Board (CARB) submitted it to EPA on December
21, 2010.  The CARB submittal included a completeness checklist which
indicated the package met the completeness criteria in 40 CFR Part 51,
Appendix V.  The submittal became complete by operation of law on June
21, 2011 pursuant to CAA §110(k)(1)(B).

ICAPCD’s 2009 RACT SIP included the following documents:

Imperial County Air Pollution Control District Final 2009 Reasonably
Available Control Technology State Implementation Plan, July 13, 2010.

Resolution of the Imperial County Air Pollution Control District Board
approving and adopting the Final 2009 Reasonably Available Control
Technology State Implementation Plan - adopted on July 13, 2010.

ICAPCD’s analysis evaluated the following areas. Further discussion is
provided below.

VOC rules for sources subject to a CTG.

Negative declarations where there are no facilities subject to a CTG.

Major non-CTG sources of VOC or NOx.

Subsequent to its adoption of the 2009 RACT SIP, ICAPCD amended or
adopted a number of rules and submitted them to EPA for approval into
the SIP. Upon SIP approval, these submittals effectively supplanted the
corresponding rules, if any, in the 2009 RACT SIP.

EPA evaluated the following elements of ICAPCD’s 2009 RACT SIP and
subsequent submittals:

Efforts to identify all source categories within the District requiring
RACT.

Negative declarations where there are no facilities subject to a CTG.

List of the State/local regulations that implement RACT.

The bases for concluding that all referenced regulations fulfill RACT.

The following documents were also used to support our review:

“Final Rule to Implement the 8-Hour Ozone National Ambient Air Quality
Standard – Phase 2” (70 FR 71612; November 29, 2005).

“State Implementation Plans, General Preamble for the Implementation
of Title I of the Clean Air Act Amendments of 1990” (57 FR 13498;
April 16, 1992).

Enforceability - Section 110(a) of the CAA requires enforceable emission
limitations and other control measures. Several EPA guidance documents
are used to evaluate rule enforceability, including Issues Relating to
VOC Regulation Cutpoints, Deficiencies, and Deviations: Clarification to
Appendix D of November 24, 1987 FEDERAL REGISTER, May 25, 1988, Revised
January 11, 1990 ("The Blue Book"), and EPA Region IX’s Guidance
Document for Correcting Common VOC and Other Rule Deficiencies, August
21, 2001 (the "Little Bluebook").

“State Implementation Plans; Nitrogen Oxides Supplement to the General
Preamble for Implementation of Title I of the Clean Air Act Amendments
of 1990” (57 FR 55620, November 25, 1992) ("the NOx Supplement").

“Model Volatile Organic Compound Rules for Reasonably Available
Control Technology”, EPA (June 1992).

“Beyond VOC RACT Requirements”, EPA (April 1995).

Memorandum from William T. Harnett to Regional Air Division Directors,
(May 18, 2006), “RACT Qs & As – Reasonably Available Control
Technology (RACT) Questions and Answers”.

RACT SIPs, Letter dated March 9, 2006 from EPA Region IX (Andrew
Steckel) to CARB (Kurt Karperos) describing Region IX’s understanding
of what constitutes a minimally acceptable RACT SIP.

EPA's CTGs   HYPERLINK
"http://www.epa.gov/groundlevelozone/SIPToolkit/ctgs.html"
http://www.epa.gov/groundlevelozone/SIPToolkit/ctgs.html

CARB’s emissions inventory database   HYPERLINK
"http://www.arb.ca.gov/app/emsinv/facinfo/facinfo.php"
http://www.arb.ca.gov/app/emsinv/facinfo/facinfo.php

CARB and EPA Region IX databases of ICAPCD rules

		CARB:    HYPERLINK "http://www.arb.ca.gov/rldb/rldb.htm"
http://www.arb.ca.gov/rldb/rldb.htm

EPA:   HYPERLINK "http://epa.gov/region09/air/sips/index.html"
http://epa.gov/region09/air/sips/index.html

VOC Rules for Sources Subject to a CTG

ICAPCD Action:

Table 1 of the 2009 RACT SIP identifies 11 CTGs which apply to sources
in Imperial County and therefore must be addressed in the RACT SIP. The
11 CTGs identified by ICAPCD and the corresponding ICAPCD rules are as
follows:

CTG Source Category	CTG Reference Document 	ICACPD Rule

Gasoline Service Stations	Design Criteria for Stage I Vapor Control
Systems – Gasoline Service Stations, EPA-450/R-75-102 1975/11	415
Transfer and Storage of Gasoline

Tank Trucks, Gasoline Loading Terminals	Control of Hydrocarbons from
Tank Truck Gasoline Loading Terminals, EPA-450/2-77-026 1977/10	415
Transfer and Storage of Gasoline

Bulk Gasoline Plants	Control of Volatile Organic Emissions from Bulk
Gasoline Plants, EPA-450/2-77-035 1977/12	415 Transfer and Storage of
Gasoline

External Floating Roof Tanks, Petroleum Liquid Storage in	Control of
Volatile Organic Emissions from Petroleum Liquid Storage in External
Floating Roof Tanks, EPA-450/2-78-047 1978/12	414 - Storage of Reactive
Organic Compound Liquids

Tank Trucks, Gasoline and Vapor Collection Systems	Control of Volatile
Organic Compound Leaks from Gasoline Tank Trucks and Vapor Collection
Systems, EPA-450/2-78-051 1978/12	415 Transfer and Storage of Gasoline

Solvent Metal Cleaning	Control of Volatile Organic Emissions from
Solvent Metal Cleaning, EPA-450/2-77-022 1977/11

	413 Organic Solvent Degreasing Operations

Storage of Petroleum Liquids in Fixed Roof Tanks	Control of Volatile
Organic Emissions from Storage of Petroleum Liquids in Fixed-Roof Tanks,
EPA-450/2-77-036 1977/12	414 - Storage of Reactive Organic Compound
Liquids

Industrial Cleaning Solvents	Control Techniques Guidelines for
Industrial Cleaning Solvents, EPA-453/R-06-001 2006/09	417 Organic
Solvents

Cutback Asphalt	Control of Volatile Organic Emissions from Use of
Cutback Asphalt, EPA-450/2-77-037 1977/12	426 Cutback Asphalt and
Emulsified Paving

Automobile Refinishing	Reduction of Volatile Organic Compound Emissions
from Automobile Refinishing, EPA-450/3-88-009 1988/10	413 Organic
Solvent Degreasing Operations

427 Automotive Refinishing Operations

Aerospace	Aerospace(CTG&MACT), EPA-453/R-97-004 1997/12	425 Aerospace
Coating Operations

Table 5 of the 2009 RACT SIP presents a comparison of the District’s
rules to similar rules in other air districts.  Based on this analysis,
ICAPCD concluded that its rules fulfill RACT requirements.

EPA Evaluation:

EPA reviewed the above rules, found they satisfied RACT, and approved
them into the SIP on the following dates.  We are not aware of
information suggesting that additional controls are needed to fulfill
RACT since our approval of these rules. Where applicable, additional
details and suggestions for future rule improvements are provided below.

Rule 413 Organic Solvent Degreasing Operations (67 FR 67313, November 5,
2002);

Rule 414 Storage of Reactive Organic Liquid Compounds (73 FR 70883,
November 24, 2008); Rule 415 Transfer and Storage of Gasoline (70 FR
8520, February 22, 2005);

Rule 417 Organic Solvents (67 FR 67313 November 5, 2002);

Rule 425 Aerospace Coating Operations (76 FR 67369, November 1, 2011);

Rule 426 Cutback Asphalt and Emulsified Paving Materials (66 FR 20084
April 19, 2001); and Rule 427 Automobile Refinishing Operations (76 FR
67369, November 1, 2011).

For Rule 413, subsequent to the 2009 RACT SIP submittal, ICAPCD found it
had no sources of organic solvent cleaning within the District that
would be subject to the 1977 Solvent Metal Cleaning CTG.  ICAPCD should
formally adopt a negative declaration including a public hearing, and
submit it to EPA for inclusion into the SIP.  We also recommend ICAPCD
update Rule 413 (last amended in 2001) to more closely match VOC solvent
cleaning limits adopted by nearby air districts with a similar ozone
nonattainment classification.  Some air districts have adopted solvent
cleaning limits of 25 g/l for general solvent cleaning operations.

Rule 415 was approved by EPA in 2005 as meeting RACT.  Although this
approval occurred before ICAPCD was reclassified from marginal to
moderate ozone nonattainment, we believe the rule still satisfies RACT.
We recommend ICAPCD consider lowering the gasoline bulk terminal
emissions limit to 0.04 pounds/1000 gallons the next time this rule is
amended.

For Rule 417, subsequent to the 2009 RACT SIP submittal, ICAPCD found it
had no sources subject to the 2006 Industrial Cleaning Solvents CTG’s
nine unit operations.7   ICAPCD should formally adopt a negative
declaration with a public hearing, and submit it to EPA for inclusion
into the SIP.  We also recommend ICAPCD update Rule 417 (last amended
1999) to more closely match VOC content limits adopted by other air
districts.  Some air districts have adopted solvent cleaning limits of
25 g/l for general solvent cleaning operations.9

Regarding Rule 426, the VOC limits for cutback and emulsified asphalt
are similar to South Coast Air Quality Management District (SCAQMD)
Rules 1108 and 1108.1, both of which are SIP-approved.  In 2008, SCAQMD
conducted a technical assessment of Rules 1108 and 1108.1 and concluded
that slow cure asphalt does not emit as much VOC as replacement
emulsions do, and did not recommend making any changes to their asphalt
rules. EPA reviewed SCAQMD’s technical assessment which estimated that
slow cure cutback asphalt would emit 0.04 tons/day, but emissions could
increase to 0.98 tons/day if emulsified asphalt (3% VOC) were
substituted for slow cure (0.5% VOC) cutback asphalt. The increased
emissions would primarily be due to the higher VOC limit allowed for
emulsified asphalt. EPA accepted the SCAQMD technical assessment of its
asphalt rules as satisfying RACT.  For the same reasons, we believe that
ICAPCD Rule 426 satisfies RACT. If additional VOC/PM2.5/ NOx reductions
are needed for attainment of the NAAQS, the District may want to
investigate use of warm mix asphalt as an alternative to hot mix
asphalt.

Regarding Rule 427, automobile refinishing is not a CTG category and
ICAPCD does not have any major sources of automobile refinishing, so
this rule is not required to meet RACT.

   Negative Declarations Where There are no Facilities Subject to a CTG

ICAPCD Action:

Table 2 “CTG/ACT Listing with no applicable sources” of the ICAPCD
2009 RACT SIP identifies the CTG source categories for which the
District has no relevant stationary sources. ICAPCD compiled this list
by comparing its rules against EPA’s list of CTGs and ACTs, reviewing
its permits and emissions inventory, and consulting with knowledgeable
staff of the District’s permit and enforcement divisions. For the
negative declarations listed in ICAPCD’s 2009 RACT SIP Table 2, the
District also indicated it does not anticipate sources in these
categories in the future.

EPA Evaluation:

Negative declarations are only required for CTG source categories where
the District has no sources subject to a CTG. A negative declaration is
not required for ACTs or for other non-CTG source categories. Table 1
below lists the CTG source categories included in ICAPCD’s 2009 RACT
SIP Table 2. We searched CARB’s emissions inventory database to verify
there are no facilities in ICAPCD that might be subject to these CTGs,
and concur with the District’s negative declarations.

Table 1 – ICAPCD Negative Declarations

CTG Source Category	CTG Reference Document

Aerospace	EPA-453/R-97-004, Aerospace CTG and MACT

Automobile and Light-duty Trucks, Surface Coating of	EPA-450/2-77-008,
Control of Volatile Organic Emissions from Existing Stationary Sources
– Volume II: Surface Coating of Cans, Coils, Paper, Fabrics,
Automobiles, and Light-Duty Trucks

EPA-453/R-08-006, Control Techniques Guidelines for Automobile and
Light-Duty Truck Assembly Coatings

Cans and Coils,

Surface Coating of	EPA-450/2-77-008, Control of Volatile Organic
Emissions from Existing Stationary Sources – Volume II: Surface
Coating of Cans, Coils, Paper, Fabrics, Automobiles, and Light-Duty
Trucks

Fiberglass Boat Manufacturing	EPA-453/R-08-004, Control Techniques
Guidelines for Fiberglass Boat Manufacturing

Flat Wood Paneling,

Surface Coating of	EPA-450/2-78-032, Control of Volatile Organic
Emissions from Existing Stationary Sources – Volume VII: Factory
Surface Coating of Flat Wood Paneling

EPA-453/R-06-004, Control Techniques Guidelines for Flat Wood Paneling
Coatings

Flexible Packing Printing	EPA-453/R-06-003, Control Techniques
Guidelines for Flexible Package Printing

Graphic Arts – Rotogravure and Flexography	EPA-450/2-78-033, Control
of Volatile Organic Emissions from Existing Stationary Sources, Volume
III: Graphic Arts – Rotogravure and Flexography

Large Appliances,

Surface Coating of	EPA-450/2-77-034, Control of Volatile Organic
Emissions from Existing Stationary Sources – Volume V: Surface Coating
of Large Appliances

EPA-453/R-07-004, Control Techniques Guidelines for Large Appliance
Coatings

Large Petroleum Dry Cleaners	EPA-450/3-82-009, Control of Volatile
Organic Compound Emissions from Large Petroleum Dry Cleaners

Offset Lithographic Printing and Letterpress Printing	EPA-453/R-06-002,
Control Techniques Guidelines for Offset Lithographic Printing and
Letterpress Printing

Magnet Wire,

Surface Coating for Insulation of	EPA-450/2-77-033, Control of Volatile
Organic Emissions from Existing Stationary Sources – Volume IV:
Surface Coating of Insulation of Magnet Wire

Metal Furniture Coatings	EPA-450/2-77-032, Control of Volatile Organic
Emissions from Existing Stationary Sources – Volume III: Surface
Coating of Metal Furniture

EPA-453/R-07-005, Control Techniques Guidelines for Metal Furniture
Coatings

Miscellaneous Metal and Plastic Parts Coatings	EPA-453/R-08-003, Control
Techniques Guidelines for Miscellaneous Metal and Plastic Parts Coatings

Miscellaneous Metal Parts and Products, Surface Coating of
EPA-450/2-78-015, Control of Volatile Organic Emissions from Existing
Stationary Sources – Volume IV:  Surface Coating of Miscellaneous
Metal Parts and Products

Miscellaneous Industrial Adhesives	EPA-453/R-08-005, Control Techniques
Guidelines for Miscellaneous Industrial Adhesives

Natural Gas/Gasoline Processing Plants Equipment Leaks	EPA-450/2-83-007,
Control of Volatile Organic Compound Equipment Leaks from Natural
Gas/Gasoline Processing Plants

Paper, Film and Foil Coatings	EPA-453R-07-003, Control Techniques
Guidelines for Paper, Film and Foil Coatings

Petroleum Refineries	EPA-450/2-77-025, Control of Refinery Vacuum
Producing Systems, Wastewater Separators, and Process Unit Turnarounds

EPA-450/2-78-036, Control of Volatile Organic Compound Leaks from
Petroleum Refinery Equipment

Pharmaceutical Products

	EPA-450/2-78-029, Control of Volatile Organic Emissions from
Manufacture of Synthesized Pharmaceutical Products

Pneumatic Rubber Tires, Manufacture of	EPA-450/2-78-030, Control of
Volatile Organic Emissions from Manufacture of Pneumatic Rubber Tires

Polyester Resin	EPA-450/3-83-008, Control of Volatile Organic Compound
Emissions from Manufacture of High-Density Polyethylene, Polypropylene,
and Polystyrene Resins

EPA-450/3-83-006, Control of Volatile Organic Compound Leaks from
Synthetic Organic Chemical Polymer and Resin Manufacturing Equipment

Shipbuilding/Repair	61 FR-44050 8/27/96, Control Techniques Guidelines
for Shipbuilding and Ship Repair Operations (Surface Coating)

Synthetic Organic Chemical	EPA-450/3-84-015, Control of Volatile Organic
Compound Emissions from Air Oxidation Processes in Synthetic Organic
Chemical Manufacturing Industry

EPA-450/4-91-031, Control of Volatile Organic Compound Emissions from
Reactor Processes and Distillation Operations in Synthetic Organic
Chemical Manufacturing Industry

Wood Furniture	EPA-453/R-96-007, Wood Furniture

Major non-CTG Sources of VOC or NOx

CAA § 182(b)(2) and (f) require RACT for stationary source categories
covered by CTG documents and all major stationary sources of VOCs or
NOx. ICAPCD was initially classified as a marginal nonattainment for the
1997 ozone NAAQS, but was subsequently reclassified as a moderate
nonattainment area. A major source in a moderate ozone nonattainment
area is defined as a stationary source that emits, or has the potential
to emit, at least 100 tons per year of VOCs or NOx.

ICAPCD Action:

ICAPCD’s 2009 RACT SIP, Table 3, lists nine facilities that were major
sources of VOC or NOx at that time, along with the respective RACT
rules, where applicable, for each facility.  Table 5 in the 2009 RACT
SIP presents a comparison of each ICAPCD RACT rule for these facilities
with the corresponding RACT rule in other California air districts.

ICAPCD’s 2009 RACT SIP Table 3 referenced the following NOx rules for
the major sources:

Rule 400: 	Fuel Burning Equipment

Rule 400.1:	Stationary Gas Turbines

Rule 400.2:	Boilers, Process Heaters and Steam Generators

Rule 403:  	General Limitations on the Discharge of Air Contaminants
(NOx/VOC)

ICAPCD’s 2009 RACT SIP Table 3 referenced the following VOC rules for
the major sources:

Rule 414:  Storage of Reactive Organic Compound Liquids

Rule 415:  Transfer and Storage of Gasoline

EPA Evaluation:

We found that CalEnergy, one of the nine facilities listed in the 2009
RACT SIP as a major source of VOC, is currently permitted with a total
annual potential to emit of 1.8 tons per year of benzene (VOC).  ORMAT
Nevada, Inc. was also listed as a major source of VOC in the 2009 RACT
SIP, but a regenerative thermal oxidizer was added to the facility, and
the potential to emit is now 19.6 tons per year of VOC.  Each
facility’s potential to emit is now well below the major source
threshold, so neither is a major source.  We also reviewed CARB’s
emissions inventory for Imperial County, and did not find any additional
relevant major sources that are not included in Table 3 of the RACT SIP.

VOC Rules:  The two remaining major sources of VOC identified in the
2009 RACT SIP are GEM Resources (ORMESA, LLC) (Permit Number 2002) and
SFPP, L.P. (Permit Number 2046). SFPP is subject to two VOC rules that
EPA previously approved into the California SIP:  Rule 414 and Rule 415.
 Our previous approval of Rule 414 found that it fulfilled RACT
requirements.  We are not aware of information suggesting that
additional controls are needed to fulfill RACT since our approval of
this rule.

As discussed earlier, our previous approval of Rule 415 concluded that
it satisfied RACT.

GEM Resources is not currently subject to any VOC prohibitory rules.
GEM Resources is subject to permit conditions which limits its annual
potential to emit to 28.29 tons/year for VOCs and 9.94 tons/year for
benzene.  The emissions are below the major source threshold, so the
facility is not a major source.

NOx Rules:  ICAPCD identified five major sources of NOx: Imperial
Irrigation District (Rockwood) (Permit Number 1365), Holly Sugar (Permit
Number 1697), Imperial Valley Resource Recovery (Permit Number 1929),
Imperial Irrigation District (ECGS) (Permit Number 2152) and USG (Permit
Number 2834). The District also identified the NOx rules that apply to
one or more of these sources and that EPA has approved into the
California SIP: Rule 400 Fuel Burning Equipment – Oxides of Nitrogen,
Rule 400.1 Stationary Gas Turbines – Reasonably Available Control
Technology, and Rule 400.2 Boilers, Process Heaters and Steam
Generators. Table 3 of the 2009 RACT SIP indicates that four of the five
major NOx sources (Imperial Irrigation District (Rockwood), Holly Sugar,
Imperial Valley Resource Recovery, and Imperial Irrigation District
(ECGS) are subject to Rules 400, 400.1 and 400.2. Our previous approvals
of Rules 400.1 and 400.2 found that they fulfilled RACT requirements. We
are not aware of information suggesting that additional controls are
needed to fulfill RACT since our approval of these rules. Our approval
of Rule 400 did not include an evaluation of ozone RACT requirements.
However, since each of the NOx sources subject to Rule 400 is also
subject to at least one additional NOx rule that EPA has found to
fulfill RACT requirements, it is not necessary to determine whether Rule
400 fulfills RACT requirements at this time.

Subsequent to the 2009 RACT SIP submittal, ICAPCD adopted Rule 400.4,
Emissions of Oxides of Nitrogen from Wallboard Kilns to ensure USG, the
last major NOx source listed in Table 3 of the 2009 RACT SIP, is subject
to RACT.  EPA approved it into the California SIP (79 FR 60070, October
6, 2014).  As part of this approval, we found that Rule 400.4 fulfilled
RACT requirements.  We are not aware of information suggesting that
additional controls are needed to fulfill RACT since our approval of
this rule.

RECOMMENDATIONS

The following rules have recommendations that are provided for future
consideration the next time the rules are open for amendment. None of
these recommendations listed in the referenced EPA technical support
documents justify less than full approval of ICAPCD’s 2009 RACT SIP
demonstration at this time.

1. Rule 400.1 Stationary Gas Turbine(s) – Reasonably Available Control
Technology (RACT) –

Refer to EPA’s technical support document for ICAPCD Rule 400.1,
December 2011, page 4 for the suggested rule improvements for the next
time the rule is revised.

2. Rule 400.2 Boilers, Process Heaters and Steam Generators –

Refer to EPA’s technical support document for ICAPCD Rule 400.2, April
2012, page 5 for the suggested rule improvements for the next time the
rule is revised.

3. Rule 400.4 Emissions of Oxides of Nitrogen from Wallboard Kilns –

Refer to EPA’s technical support document for ICAPCD Rule 400.4, June
2014, page 4 for the added rule recommendations for the next time the
rule is revised.

4. Rule 413 Organic Solvent Cleaning and Rule 417 Organic Solvents –

Adopt and submit for SIP approval a negative declaration for the 1977
Solvent Metal Cleaning and 2006 Industrial Solvent Cleaning CTGs.
Consider adopting a VOC content limit of 25 g/l for cleaning solvents
similar to other air districts.

5. Rule 415 Transfer and Storage of Gasoline –

If additional VOC reductions are needed, consider lowering the bulk
gasoline terminal emissions limit to 0.04 pounds/1000 gallons loaded.
See Bay Area AQMD Rule 8-33 section 8-33-301.2 (effective 1/10/2011).

6. Rule 425 Aerospace Coating Operations –

Refer to EPA’s technical support document for ICAPCD Rule 425, January
2011, page 4 for the added rule recommendations for the next time the
rule is revised.

7. Rule 426 Cutback Asphalt and Emulsified Paving Materials –

If additional VOC/NOx/PM2.5 reductions are needed, consider use of warm
mix asphalt as an option to hot mix asphalt. See pg C-220   HYPERLINK
"http://www.valleyair.org/Air_Quality_Plans/docs/PM25-2015/C.pdf"
http://www.valleyair.org/Air_Quality_Plans/docs/PM25-2015/C.pdf .

8. Rule 427 Automotive Refinishing Operations –

Refer to EPA’s technical support document for ICAPCD Rule 427,
February 2011, page 3 for the added rule recommendations for the next
time the rule is revised.

9. If additional VOC reductions are needed, consider adopting controls
for composting operations similar to South Coast Rule 1133 (series) or
San Joaquin Rule 4566.

SUMMARY

We concur with ICAPCD’s 2009 RACT SIP certification, including rules
that were amended or adopted after 2009 as they fulfill the requirements
for RACT for the 1997 8-hour ozone standard, and recommend the 2009 RACT
SIP be approved.

REFERENCES

1.  Imperial County Air Pollution Control District, Final 2009
Reasonably Available Control Technology State Implementation Plan Dated
July 13, 2010, Adopted July 13, 2010; submitted December 21, 2010.

2. “Final Rule to Implement the 8-Hour Ozone National Ambient Air
Quality Standard – Phase 2” 70 FR 71612; November 29, 2005).
HYPERLINK "http://www.gpo.gov/fdsys/pkg/FR-2005-11-29/pdf/05-22698.pdf"
http://www.gpo.gov/fdsys/pkg/FR-2005-11-29/pdf/05-22698.pdf

3. ICAPCD - Supplemental to 2009 RACT SIP - Analysis of Control
Technologies Guidance (CTG) Documents, July 31, 2015.

4. “Air Quality Designations and Classifications for the 8-Hour Ozone
National Ambient Air Quality Standards; Early Action Compact Areas With
Deferred Effective Dates” – Final Rule (  HYPERLINK
"http://www.gpo.gov/fdsys/pkg/FR-2004-04-30/pdf/04-9152.pdf"  69 FR
23858 ; April 30, 2004).

5. “Final Rule to Implement the 1997 8-Hour Ozone National Ambient Air
Quality Standard: Classification of Areas That Were Initially Classified
Under Subpart 1; Revision of the Anti-

Backsliding Provisions to Address 1-Hour Contingency Measure
Requirements; Deletion of Obsolete 1-Hour Ozone Standard Provision”
– Final Rule (  HYPERLINK
"http://www.gpo.gov/fdsys/pkg/FR-2012-05-14/pdf/2012-11232.pdf"  77 FR
28424 ; May 14, 2012)

6.  “State Implementation Plans, General Preamble for the
Implementation of Title I of the Clean Air Act Amendments of 1990” (57
FR 13498; April 16, 1992).

7.  Issues Relating to VOC Regulation Cutpoints, Deficiencies, and
Deviations: Clarification to Appendix D of November 24, 1987 FEDERAL
REGISTER, May 25, 1988, Revised January 11, 1990 ("The Blue Book").
HYPERLINK
"http://www.epa.gov/ttn/naaqs/ozone/ozonetech/voc_bluebook.pdf"
http://www.epa.gov/ttn/naaqs/ozone/ozonetech/voc_bluebook.pdf

8.  EPA Region IX’s Guidance Document for Correcting Common VOC and
Other Rule Deficiencies, August 21, 2001 (the "Little Bluebook").
HYPERLINK "http://epa.gov/region9/air/sips/littlebluebook2001.pdf"
http://epa.gov/region9/air/sips/littlebluebook2001.pdf

9. “State Implementation Plans; Nitrogen Oxides Supplement to the
General Preamble for the Implementation of Title I of the Clean Air Act
Amendments of 1990” (57 FR 55620, November 25, 1992) (“the NOx
Supplement”).

10.  “Model Volatile Organic Compound Rules for Reasonably Available
Control Technology”, EPA (June 1992).   HYPERLINK
"http://www.epa.gov/ttn/naaqs/ozone/ozonetech/voc_modelrules.pdf"
http://www.epa.gov/ttn/naaqs/ozone/ozonetech/voc_modelrules.pdf

11.  EPA-453/R-95-010, “Beyond VOC RACT Requirements”, EPA (April
1995).

  HYPERLINK "http://www.epa.gov/ttncatc1/dir1/byndract.pdf"
http://www.epa.gov/ttncatc1/dir1/byndract.pdf

12.  RACT Qs & As – Reasonably Available Control Technology (RACT):
Questions and Answers, May 18, 2006 Memorandum from William T. Harnett,
Director, Air Quality Policy Division, to Regional Air Division
Directors.   HYPERLINK
"http://www.epa.gov/ttn/caaa/t1/memoranda/ractqanda.pdf"
http://www.epa.gov/ttn/caaa/t1/memoranda/ractqanda.pdf

13.  RACT SIPs, Letter dated March 9, 2006 from EPA Region IX (Andrew
Steckel) to CARB (Kurt Karperos) describing Region IX’s understanding
of what constituted a minimally acceptable RACT SIP.

14.  EPA's CTGs and ACTs   HYPERLINK
"http://www.epa.gov/groundlevelozone/SIPToolkit/ctgs.html"
http://www.epa.gov/groundlevelozone/SIPToolkit/ctgs.html  .

15.  CARB’s emissions inventory database   HYPERLINK
"http://www.arb.ca.gov/app/emsinv/facinfo/facinfo.php"
http://www.arb.ca.gov/app/emsinv/facinfo/facinfo.php .

16. CARB and EPA Region IX databases of ICAPCD rules

CARB:    HYPERLINK "http://www.arb.ca.gov/drdb/imp/cur.htm"
http://www.arb.ca.gov/drdb/imp/cur.htm  .

EPA: 	  HYPERLINK "http://epa.gov/region09/air/sips/index.html"
http://epa.gov/region09/air/sips/index.html .

ICAPCD:   HYPERLINK
"http://www.co.imperial.ca.us/AirPollution/Web%20Pages/RULES%20AND%20REG
ULATIONS.htm"
http://www.co.imperial.ca.us/AirPollution/Web%20Pages/RULES%20AND%20REGU
LATIONS.htm

17. ICAPCD Synthetic Minor Permit Review, 1641B-3 ORMAT Nevada Inc.,
September 23, 2010.

18. ICAPCD Authority to Constrct and Permit To Operate Review, 2002I-3
Ormesa, LLC., April 1, 2014.

19. ICAPCD Authority to Construct and Permit to Operate Review Review,
#2000H-9 CalEnergy Operating Corporation, March 4, 2015.

20. South Coast Air Quality Management District, “Technical Assessment
for Rule 1108 – Cutback Asphalt”, June 2008.

 69 FR 23858 (April 30, 2004)

 73 FR 8209 (February 13, 2008)

 74 FR 63309 (December 3, 2009)

 CAA § 182(b)(2) and (f).

   HYPERLINK
"http://www.gpo.gov/fdsys/pkg/FR-2005-11-29/pdf/05-22698.pdf"  70 FR
71612 , 71652, n. 57 (November 29, 2005) (citing 44 FR 53761 (September
17, 1979))

 With regard to Rule 425, we note that ICAPCD has certified that it has
no sources subject to the aerospace coating CTG.  Therefore, ICAPCD is
not required to adopt RACT requirements for this source category.

 ICAPCD - Supplemental to 2009 RACT SIP - Analysis of Control
Technologies Guidance (CTG) Documents, July 31, 2015.

 See Sacramento Metropolitan AQMD Rule 466 (  HYPERLINK
"http://airquality.org/rules/rule466.pdf"
http://airquality.org/rules/rule466.pdf ) and South Coast AQMD Rule 1171
(  HYPERLINK
"http://www.aqmd.gov/docs/default-source/rule-book/reg-xi/rule-1171.pdf?
sfvrsn=4"
http://www.aqmd.gov/docs/default-source/rule-book/reg-xi/rule-1171.pdf?s
fvrsn=4 ).

 See Bay Area AQMD Rule 8-33 section 8-33-301.2 (effective 1/10/2011)

 See South Coast Air Quality Management District, “Technical
Assessment for Rule 1108 – Cutback Asphalt”, June 2008.

 See pg C-220   HYPERLINK
"http://www.valleyair.org/Air_Quality_Plans/docs/PM25-2015/C.pdf"
http://www.valleyair.org/Air_Quality_Plans/docs/PM25-2015/C.pdf

 The document listed by ICAPCD as a CTG for Automotive Refinishing,
“Reduction of Volatile Organic Compound Emissions from Automobile
Refinishing, EPA-450/3-88-009 1988/10” is in fact an Alternative
Control Techniques (ACT) Document.

 See   HYPERLINK
"http://www.gpo.gov/fdsys/pkg/FR-2004-04-30/pdf/04-9152.pdf"  69 FR
23858  (April 30, 2004), and   HYPERLINK
"http://www.gpo.gov/fdsys/pkg/FR-2012-05-14/pdf/2012-11232.pdf"  77 FR
28424  (May 14, 2012) (codified at 40 CFR § 81.305 (California—1997
8-Hour Ozone NAAQS)).

 See CAA §§ 182(b)(2) and (f) and 302(j).

 Imperial County Air Pollution Control District, Authority to Construct
and Permit to Operate Review, Permit #2000H-9 (March 4, 2015) Table 8.

 Imperial County Air Pollution Control District, Synthetic Minor Permit
Review, Permit 1641B-3 (September 23, 2010) page 7.

 Approved in 73 FR 70883 (November 24, 2008).

 Approved in 70 FR 8520 (February 22, 2005).

 Imperial County Air Pollution Control District, Conditions for
Authority to Construct and Permit to Operate #2002I-4 (April 1, 2014).

 Approved in 68 FR 14161 (March 24, 2003)

 Approved in 77 FR 2469 (November 18, 2012)

 Approved in 78 FR 896 (January 7, 2013)

 Approved in 79 FR 60070 (October 6, 2014)

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